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WO2014015479A1 - 下行控制信息的发送、接收方法、服务节点及用户设备 - Google Patents

下行控制信息的发送、接收方法、服务节点及用户设备 Download PDF

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Publication number
WO2014015479A1
WO2014015479A1 PCT/CN2012/079097 CN2012079097W WO2014015479A1 WO 2014015479 A1 WO2014015479 A1 WO 2014015479A1 CN 2012079097 W CN2012079097 W CN 2012079097W WO 2014015479 A1 WO2014015479 A1 WO 2014015479A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
subframe
downlink control
control information
sequence number
Prior art date
Application number
PCT/CN2012/079097
Other languages
English (en)
French (fr)
Inventor
薛丽霞
闫志宇
马莎
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280007350.XA priority Critical patent/CN104322121B/zh
Priority to PCT/CN2012/079097 priority patent/WO2014015479A1/zh
Priority to EP12881559.4A priority patent/EP2871893B1/en
Publication of WO2014015479A1 publication Critical patent/WO2014015479A1/zh
Priority to US14/604,217 priority patent/US9750004B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0073Allocation arrangements that take into account other cell interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to a wireless communication technology, and in particular, to a method for transmitting and receiving downlink control information, a service node, and a user equipment (UE).
  • Background technique
  • Heterogeneous Network refers to a network composed of service nodes of different powers. These service nodes include Macro eNB, Pico eNB, Home Base Station (H-eNB), and relay. Relay (Relay) and so on.
  • a high-power service node may cause interference to a low-power service node.
  • the transmission power of a macro base station is usually 46 dBm
  • the transmission power of a Pico base station is usually 30 dBm.
  • a UE served by a Pico base station is subject to a macro base station. Interference.
  • CRE means that even if the power received by the UE from the Pico base station is lower than the power received from the macro base station, the Pico base station is selected as the serving cell.
  • the interference signal of the macro base station is even larger than the useful signal strength from the Pico base station.
  • DCI Down Control Information
  • Time Division Multiplexing (TDM) schemes can be used to solve inter-cell interference problems.
  • the interfering cell uses different transmit powers in different subframes, for example, the subframe is divided into a normal subframe (Normal subframe) and an almost blank subframe (Almost Blank subframe), where the transmit power of the normal subframe Larger, almost empty subframes have a smaller transmit power or zero.
  • the interfered cell can schedule UEs that are susceptible to the interference cell on the almost empty subframe, so that the interference caused by the interference cells by the UEs on the time resources is weak, thereby solving the problem that the interfered cells are strongly interfered.
  • the embodiment of the present invention provides a method for transmitting and receiving downlink control information,
  • the serving node and the user equipment are used to reduce strong interference to broadcast messages and paging messages of the interfered cell system.
  • a method for sending downlink control information including:
  • the serving node of the interfered cell determines the first resource, and the first resource is located in at least one of the following items:
  • a physical resource included in the user-specific search space USS of the physical downlink control channel PDCCH an extended physical resource obtained by expanding a common search space CSS of the PDCCH, and a physical resource included in the US of the enhanced physical downlink control channel E-PDCCH, and , physical resources included in the CSS of the E-PDCCH;
  • the serving node sends, on the first resource, first downlink control information of the interfered cell, where the first downlink control information includes a paging message sent by a serving node for scheduling the interfered cell, and And/or scheduling information of the system message block SIB1, the paging message and/or SIB1 being transmitted by the serving node of the interfered cell on the physical downlink shared channel PDSCH of the interfered cell.
  • first downlink control information includes a paging message sent by a serving node for scheduling the interfered cell, and And/or scheduling information of the system message block SIB1, the paging message and/or SIB1 being transmitted by the serving node of the interfered cell on the physical downlink shared channel PDSCH of the interfered cell.
  • the method further includes:
  • the serving node of the interfered cell sends the first downlink control information on the second resource, where the second resource is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell,
  • the second downlink control information includes a paging message for scheduling the paging message sent by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell and/or a scheduling message of the SIB1 message.
  • the sequence number of the subframe in which the first resource is located is the same as the sequence number of the subframe in which the second resource is located; the sub-frame of the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource
  • the sequence number of the frame is the same as the sequence number of the subframe in which the first resource is located, and the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is located and the second resource
  • the sequence number of the subframe in which it is located is the same.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second a subframe in which the PDSCH corresponding to the first downlink control information is transmitted on the resource
  • the sequence number is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the data sent in the PDSCH corresponding to the first downlink control information includes first indication information, where the first indication information is used to indicate The data sent in the PDSCH corresponding to the first downlink control information includes the SIB1; or
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information is located is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the method further includes:
  • the serving node of the interfered cell sends third downlink control information, where the third downlink control information includes scheduling information for scheduling system broadcast messages other than the primary information block MIB and SIB1, except the primary information block MIB and SIB1.
  • System broadcast message is sent by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or
  • the subframe number in which the PDSCH corresponding to the third downlink control information is located is used to identify that the data transmitted in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the main information block MIB and SIB1.
  • the serving node of the interfered cell is a low power serving node; the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes:
  • the CSS consisting of the control channel elements CCE with sequence numbers 0 to 15 is extended to obtain an extended CCE whose CSS number is greater than or equal to 16.
  • a method for receiving downlink control information including:
  • the user equipment UE of the interfered cell receives the first downlink control information sent by the serving node of the interfered cell on the first resource, where the first resource is located in at least one of the following items: a physical downlink control channel PDCCH
  • the first downlink control information includes: a scheduling message for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1;
  • the UE acquires data in the physical downlink shared channel PDSCH indicated by the first downlink control information according to the first downlink control information, where the data in the PDSCH includes the paging message and/or SIB1.
  • the method further includes: the UE receiving the first downlink control information that is sent by the serving node on a second resource, where the second resource is a serving node of an interfering cell in an interfering cell a resource for transmitting second downlink control information, where the second downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message sent by a serving node of the interfering cell on a physical downlink shared channel PDSCH of the interfering cell.
  • the sequence number of the subframe in which the first resource is located is the same as the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the data in the PDSCH further includes first indication information, where the first indication information is used to indicate that the data in the PDSCH includes Said SIB1; or,
  • the subframe number of the subframe in which the PDSCH is located is used to identify that the data in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the method further includes:
  • the UE receives third downlink control information, where the third downlink control information includes In addition to the scheduling information of the system broadcast message other than the primary information block MIB and the SIB1, the system broadcast message other than the primary information block MIB and the SIB1 is transmitted by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the a system broadcast message other than the information block MIB and the SIB1; or the subframe number of the PDSCH corresponding to the third downlink control information is used to identify that the data sent in the PDSCH corresponding to the third downlink control information includes the main information Block MIB and system broadcast messages other than SIB1.
  • the serving node of the interfered cell is a low power serving node; the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes:
  • the CSS consisting of the control channel elements CCE with sequence numbers 0 to 15 is extended to obtain an extended CCE whose CSS number is greater than or equal to 16.
  • a service node including:
  • a determining module configured to determine a first resource, where the first resource is located in at least one of the following items:
  • a physical resource included in the user-specific search space USS of the physical downlink control channel PDCCH an extended physical resource obtained by expanding the common search space CSS of the PDCCH, and a physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and , physical resources included in the CSS of the E-PDCCH;
  • a first sending module configured to send information about the first resource determined by the determining module, and send, by using the first resource, first downlink control information of the interfered cell, where the first downlink control is performed
  • the information includes scheduling information for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1, the paging message and/or SIB1 being addressed by a serving node of the interfered cell
  • the physical downlink shared channel PDSCH of the interfered cell is transmitted.
  • the method further includes: a second sending module, configured to send the first downlink control information on the second resource;
  • the second resource is a serving node of the interfering cell, and the interfering cell is used to send the second downlink control.
  • the resource of the information, the second downlink control information includes a scheduling message for scheduling a paging message and/or an SIB1 message sent by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell, and another possible implementation manner in,
  • the sequence number of the subframe in which the first resource is located is the same as the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the serving node when the sequence number of the subframe where the first resource is located is different from the sequence number of the subframe where the second resource is located, and the first downlink control information is used to schedule the interfered
  • the serving node of the cell When the serving node of the cell is in the SIB1 of the physical downlink shared channel PDSCH of the interfered cell, the serving node sends the PDSCH corresponding to the first downlink control information sent by the first sending module.
  • the sent data includes first indication information, where the first indication information is used to indicate that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1; or
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the first sending module is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the node when the sequence number of the subframe where the first resource is located is different from the sequence number of the subframe where the second resource is located, and the first downlink control information is used to schedule the interfered
  • the serving node of the cell when the serving node of the cell is in the SIB1 of the physical downlink shared channel PDSCH of the interfered cell, the node further includes:
  • a third sending module configured to send third downlink control information, where the third downlink control information includes scheduling information for scheduling system broadcast messages except the primary information block MIB and the SIB1, where the main information block MIB and the SIB1 a system broadcast message other than that is sent by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or,
  • the subframe number in which the PDSCH corresponding to the third downlink control information is located is used to identify that the data transmitted in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the main information block MIB and SIB1.
  • a user equipment including:
  • the first receiving module is configured to receive, by using the first resource, the first downlink control information that is sent by the serving node of the interfered cell, where the first resource is located in at least one of the following items: a physical downlink control channel PDCCH
  • the first downlink control information includes: a scheduling message for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1;
  • the first acquiring module is configured to receive the first downlink control information that is sent by the first receiving module, and obtain the physical indication that the first downlink control information is instructed according to the first downlink control information.
  • the data in the row shared channel PDSCH, the data in the PDSCH includes the paging message and/or SIB1.
  • the method further includes: a second receiving module, configured to receive the first downlink control information that is sent by the serving node on a second resource, where the second resource is a service of an interfering cell
  • the node is used by the interfering cell to send the second downlink control information
  • the second downlink control information includes a paging message and/or an SIB1 message sent by the serving node for scheduling the interfering cell to the physical downlink shared channel PDSCH of the interfering cell. Scheduling information.
  • sequence number of the subframe in which the first resource is used by the first receiving module and the subframe in which the second resource is used by the second receiving module The same serial number
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is And the physical downlink sharing corresponding to the first downlink control information sent by the second resource, where the first downlink control information is sent.
  • the sequence number of the subframe in which the channel PDSCH is located is the same.
  • the data in the PDSCH acquired by the first acquiring module further includes first indication information, where the first indication information is used to indicate that The data in the PDSCH includes the SIB1; or the subframe number of the subframe in which the PDSCH is acquired by the first acquiring module is used to identify data in the PDSCH corresponding to the first downlink control information.
  • the SIB1 is included.
  • the device when the sequence number of the subframe where the first resource is located is different from the sequence number of the subframe where the second resource is located, and the first downlink control information is used to schedule the interfered
  • the serving node of the cell when the serving node of the cell is in the SIB1 of the physical downlink shared channel PDSCH of the interfered cell, the device further includes:
  • a third receiving module configured to receive third downlink control information, where the third downlink control information includes scheduling information for scheduling system broadcast messages other than the primary information block MIB and the SIB1, where the primary information block MIB and the SIB1
  • the system broadcast message is sent by the serving node of the interfered cell on the PDSCH of the interfered cell; the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, and the second indication information is used by the second indication information.
  • the data that is sent in the PDSCH corresponding to the third downlink control information includes the system broadcast message except the primary information block MIB and the SIB1; or the subframe number of the PDSCH corresponding to the third downlink control information.
  • the data for identifying the PDSCH corresponding to the third downlink control information includes system broadcast messages other than the primary information block MIB and SIB1.
  • a service node including:
  • the processor is configured to determine the first resource, where the first resource is located in at least one of the following items: a physical resource included in a user-specific search space USS of the physical downlink control channel PDCCH, and a common search space CSS of the PDCCH is extended. Obtaining the extended physical resource, the physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and the physical resource included in the CSS of the E-PDCCH;
  • a transmitter configured to send, by using the first resource, first downlink control information of the interfered cell, where the first downlink control information includes a paging message sent by a serving node for scheduling the interfered cell And/or scheduling information of the system message block SIB1, said paging message and/or SIB1 being dried by said The serving node of the victim cell transmits on the physical downlink shared channel PDSCH of the interfered cell.
  • the transmitter is further configured to:
  • the second resource is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell, where the second downlink control information includes a physical downlink shared channel PDSCH of the serving node for scheduling the interfering cell in the interfering cell.
  • the paging message sent and/or the scheduling information of the SIB1 message is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell, where the second downlink control information includes a physical downlink shared channel PDSCH of the serving node for scheduling the interfering cell in the interfering cell.
  • sequence number of the subframe where the first resource is located is the same as the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the data sent by the PDSCH corresponding to the first downlink control information sent by the transmitter includes first indication information, where the An indication information is used to indicate that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1; or
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the sender is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the transmitter is further configured to:
  • third downlink control information includes scheduling information for scheduling a system broadcast message other than the main information block MIB and the SIB1, where the system broadcast message other than the main information block MIB and the SIB1 is
  • the serving node of the interfered cell is sent on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or,
  • the subframe number in which the PDSCH corresponding to the third downlink control information is located is used to identify that the data transmitted in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the main information block MIB and SIB1.
  • a user equipment including:
  • the receiver is configured to receive, by using the first resource, the first downlink control information that is sent by the serving node of the interfered cell, where the first resource is located in at least one of the following items: The physical resource included in the search space USS, the extended physical resource obtained by extending the common search space CSS of the PDCCH, the physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and the CSS included in the E-PDCCH Physical resources;
  • the first downlink control information includes: scheduling information for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1;
  • a processor configured to acquire, according to the first downlink control information, data in a physical downlink shared channel (PDSCH) indicated by the first downlink control information, where data in the PDSCH includes the paging message and/or SIB1.
  • PDSCH physical downlink shared channel
  • the receiver is further configured to:
  • the downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message transmitted by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell.
  • the sequence number of the subframe in which the first resource is located is the same as the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information is received by the receiver is the same as the sequence number of the subframe in which the first resource is located, and is sent on the second resource.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located; the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information received by the receiver is located.
  • the sequence number of the subframe in which the first resource is located, and the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is located and the child in which the second resource is located The serial number of the frame is the same; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is The subframe in which the PDSCH corresponding to the first downlink control information that is sent is located.
  • the serial number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information sent on the second resource is located is the same.
  • the first downlink control information is used to schedule the physical condition of the serving node of the interfered cell in the interfered cell
  • SIB1 transmitted by the downlink shared channel PDSCH
  • the data in the PDSCH obtained by the processor further includes first indication information, where the first indication information is used to indicate that the data in the PDSCH includes the SIB1; or
  • the subframe number of the subframe in which the PDSCH is obtained by the processor is used to identify that the data in the PDSCH corresponding to the first downlink control information includes the SIB1. .
  • the receiver is further configured to:
  • the third downlink control information includes scheduling information for scheduling system broadcast messages other than the main information blocks MIB and SIB1, and the system broadcast messages other than the main information blocks MIB and SIB1
  • the serving node of the interfered cell is sent on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the a system broadcast message other than the information block MIB and the SIB1; or the subframe number of the PDSCH corresponding to the third downlink control information is used to identify that the data sent in the PDSCH corresponding to the third downlink control information includes the main information Block MIB and system broadcast messages other than SIB1. .
  • the serving node of the interfered UE sends the SIB1 and/or the paging message of the interfered cell on the first resource, because the first resource and the preset resource are separated as much as possible, and the interfering cell is in the preset resource.
  • the uplink transmits the downlink control information with a larger power, and the power on the non-predetermined resource can be smaller, so that the strong interference to the SIB1 and the paging message of the interfered cell can be reduced.
  • FIG. 1 is a schematic flowchart of an embodiment of a method for transmitting downlink control information according to the present invention
  • FIG. 2 is a schematic flowchart of a method for receiving downlink control information according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a method for transmitting and receiving downlink control information according to the present invention
  • FIG. 4 is a schematic diagram of a channel structure corresponding to FIG. 3;
  • FIG. 5 is a schematic flow chart of another embodiment of a method for transmitting and receiving downlink control information according to the present invention.
  • FIG. 6 is a schematic diagram of a channel structure corresponding to FIG. 5;
  • FIG. 7 is a schematic flow chart of another embodiment of a method for transmitting and receiving downlink control information according to the present invention.
  • FIG. 8 is a schematic diagram of a channel structure corresponding to FIG. 7;
  • FIG. 9 is a schematic flowchart of a method for transmitting and receiving downlink control information according to another embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a channel structure corresponding to FIG. 9;
  • FIG. 11 is a schematic flowchart of a method for transmitting and receiving downlink control information according to another embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a channel structure corresponding to FIG. 11;
  • FIG. 13 is a schematic structural diagram of an embodiment of a service node according to the present invention.
  • FIG. 14 is a schematic structural diagram of an embodiment of a user equipment according to the present invention.
  • FIG. 15 is a schematic structural diagram of another embodiment of a service node according to the present invention.
  • FIG. 16 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. based on All other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.
  • a cell in which an interfering cell causes a signal to be interfered with other cells may be referred to as an aggressor cell; a cell in which the interfered cell is interfered by a signal transmitted by another cell may be referred to as a victim cell.
  • Some existing messages are specified in the existing protocols, such as system broadcast messages, paging messages, etc., which need to be transmitted on a specified subframe.
  • These specified subframes that is, subframes in which system broadcast messages or paging messages may exist may be referred to as reservations. Subframe.
  • the system broadcast message is divided into a main information block (MIB) and a system information block (SIB), and the SIB is divided into SIB1, SIB2, and the like according to different repetition periods and contents.
  • the UE For the paging message, the UE first listens to whether the physical downlink control channel (PDCCH) carries the paging wireless network temporary identifier on the paging moment of the corresponding paging radio frame (Paging Radio Network).
  • P-RNTI The Temporary Identifier (P-RNTI) is further used to determine whether a paging message for the UE is carried on the corresponding Physical Downlink Shared Channel (PDSCH).
  • the subframe position that may occur in the paging time in the Frequency Division Duplex (FDD) system is the 0th, 4th, 5th, and 9th subframes in one frame, and the time division duplex (Time) Division Duplex, TDD)
  • the subframe position where PO (Paging occasion) may occur in the system is subframe 0, 1, 5, and 6 in one subframe.
  • the subframes in which the SIB1 message or the paging message may be present are referred to as a predetermined subframe, for example, the predetermined subframe includes the subframe No. 5 corresponding to the SIB1, or the 0th of the corresponding paging message.
  • Subframes 4, 5, 9 or subframes 0, 1, 5, and 6 transmit SIB1 and Paging messages in predetermined subframes, so that UEs in idle state can listen to SIB1 only in these predetermined subframes.
  • Paging PDCCH has the benefit of power saving.
  • FIG. 1 is a schematic flowchart of a method for sending downlink control information according to an embodiment of the present invention, including: Step 11: A serving node of an interfered cell determines a first resource, where the first resource is located in at least one of the following items:
  • a physical resource included in the USS of the PDCCH an extended physical resource obtained by extending the CSS of the PDCCH, a physical resource included in the USS of the E-PDCCH, and a physical resource included in the CSS of the E-PDCCH;
  • the first resource may also be referred to as a protected resource.
  • the scheduling information for scheduling the paging message and the SIB1 message of the interfering cell and the interfered cell may be avoided.
  • Step 12 The serving node sends, on the first resource, first downlink control information of the interfered cell, where the first downlink control information includes a homing sent by a serving node for scheduling the interfered cell.
  • the paging message and/or the scheduling information of SIB1, the paging message and/or SIB1 being transmitted by the serving node of the interfered cell on the PDSCH of the interfered cell.
  • the interfered cell is the cell where the interfered UE is located.
  • the interfered cell takes a micro (Pico) cell as an example
  • the interfering cell takes a macro (Macro) cell as an example.
  • the message sent on the predetermined subframe is exemplified by the SIB1 message, and the paging message can be referred to for execution.
  • the SIB1 message of the macro cell will be sent on the predetermined subframe, and the scheduling information for scheduling the SIB1 message is the physical resource corresponding to the Common Search Space (CSS) of the PDCCH of the predetermined subframe.
  • the resource carrying the scheduling information of the SIB 1 message and/or the paging message carrying the interfering cell is located in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe.
  • the scheduling information of the SIB1 of the micro cell may be transmitted not only on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe but also on another resource.
  • the method further includes: the serving node of the interfered cell transmitting the first downlink control information on a second resource, where the second resource is a serving node of the interfering cell, and the serving node is used in the interfering cell
  • the second downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message sent by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell.
  • the second resource may be located in a physical resource included in a CSS of a PDCCH in the foregoing predetermined subframe. Medium.
  • the serving node of the interfering cell sends the second downlink control information on the second resource
  • the serving node of the interfered cell sends the first downlink control information on the first resource
  • the serving node in the interfered cell is in the second
  • the interference received by the first downlink control information on the resource is small, and the first downlink control information can be ensured to be correctly received by the UE.
  • the scheduling information of the SIB1 of the micro cell may not be transmitted on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe, but only on the other resource.
  • the first resource may be located in a resource in a non-predetermined subframe.
  • the resources in the unscheduled subframe may be: a physical resource corresponding to a UE-specific search space (UES) of the PDCCH in the non-predetermined subframe, and a CSS corresponding to the PDCCH in the non-predetermined subframe.
  • E-PDCCH enhanced PDCCH
  • the first resource may also be located in a physical resource corresponding to the CSS of the non-PDCCH in the predetermined subframe.
  • the physical resource corresponding to the non-PDCCH CSS may be: a physical resource corresponding to the USS of the PDCCH, and an extended physical resource obtained by expanding the CSS of the PDCCH (the physical resource may be simply referred to as a physical resource corresponding to the extended CSS), E a physical resource corresponding to the USS of the PDCCH or a physical resource corresponding to the CSS of the E-PDCCH.
  • the extended physical resource may be obtained by: extending a CSS composed of a control channel unit CCE with sequence numbers 0 to 15 to obtain an extended CCE whose CSS number is greater than or equal to 16.
  • Which first resource is specifically used can be determined in a pre-configured manner.
  • the UE of the interfered cell performs the following process:
  • Step 21 The UE of the interfered cell receives the first downlink control information that is sent by the serving node of the interfered cell on the first resource, where the first resource is located in at least one of the following items:
  • the first downlink control information includes: a physical resource, an extended physical resource obtained by extending a CSS of the PDCCH, a physical resource included in a USS of the E-PDCCH, and a physical resource included in a CSS of the E-PDCCH, where the first downlink control information includes: And scheduling information of the paging message and/or SIB1 sent by the serving node of the interfered cell;
  • Step 22 The UE acquires data in the PDSCH indicated by the first downlink control information according to the first downlink control information, where the data in the PDSCH includes the paging message and/or SIB1.
  • the scheduling information of the SIB1 of the micro cell is to be transmitted not only on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe but also on the other resource, compared with the prior art, for some UEs,
  • the UEs need not only detect the first downlink control information in the CSS of the PDCCH of the predetermined subframe, but also detect the first downlink control information on the first resource.
  • the first downlink control information of the UE may still be sent on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe, if the UE can detect the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe. If the first downlink control information is not detected on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe, the first downlink control information is not detected. The first downlink control information is detected.
  • the method may further include: the UE receiving the first downlink control information that is sent by the serving node on the second resource, where the second resource is a serving node of the interfering cell is in interference
  • the cell is configured to send the resource of the second downlink control information, where the second downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message sent by the serving node of the interfering cell on the PDSCH of the interfering cell.
  • the UE does not compare with the prior art.
  • the first downlink control information needs to be detected in the CSS of the PDCCH of the predetermined subframe, and the first downlink control information is detected on the first resource.
  • decoding When detecting the first downlink control information, decoding may be performed according to different DCI formats, and then performing descrambling and CRC check according to the corresponding RNTI (such as SI-RNTI or P-RNTI) to obtain the correct first. Downstream control information. Then, according to the indication of the first downlink control information, the data in the corresponding PDSCH, such as the SIB1 message or the paging message of the interfered cell, is obtained.
  • RNTI such as SI-RNTI or P-RNTI
  • the first downlink control information on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the PDSCH indicated by the first downlink control information on the first resource may be the same or different. Specifically, it may include:
  • the sequence number of the subframe where the first resource is located is the same as the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located; where the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located
  • the sequence number of the frame is the same as the sequence number of the subframe in which the first resource is located, and the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is located and the second resource
  • the sub-frame is in the same sequence number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the scheduling information of the interfered cell is sent on the first resource, the interference caused by the interfering cell can be reduced as much as possible, and the UE of the interfered cell can correctly demodulate the downlink control information.
  • the PDSCH carries the data sent by the base station to the UE, and the PDCCH carries the scheduling information of the corresponding PDSCH, and the scheduling information is mainly used to indicate the transmission format information of the PDSCH corresponding thereto, including resource allocation and transmission block.
  • the PDCCH and the PDSCH are multiplexed in one subframe, the size, the modulation and coding scheme, the rank of the transmission, and the precoding matrix information.
  • the PDCCHs of all scheduling user equipments are multiplexed together and then transmitted in the PDCCH region.
  • the mapping resources of the PDCCH can be divided into CSS and USS, and the scheduling information of the system broadcast message, the paging message, the random access response message, the power control message, and the like can be transmitted in the physical resource corresponding to the CSS, for the specific data for the UE.
  • the scheduling information can be in the physical resource corresponding to the USS.
  • Each PDCCH includes a 16-bit CRC check, and the UE is used to verify whether the received PDCCH is correct, and the CRC uses the RNTI associated with the UE to perform scrambling, so that the UE can determine which PDCCHs need to be received and which are sent. For other UEs.
  • RNTIs for different types of services, such as SI-RNTI, C-RNTI, P-RNTI, RA-RNTI, SPS-RNTI, and the like. These RNTIs are used to scramble the CRC of the information in the PDCCH. The scrambling of the paging message and the system broadcast message CRC is scrambled by P-RNTI and SI-RNTI, respectively. The UE knows these identities before receiving these messages.
  • the UE obtains the information carried in the PDCCH by means of the blind detection.
  • the blind detection process is as follows: The UE generally does not know what format information the DCI of the current PDCCH transmits, and does not know where the information is needed. However, the UE knows what information it is currently expecting. For example, the information expected by the UE in the Idle state is paging, SI; the RACH Response is expected after the Random Access is initiated; and the UL Grant is expected when there is uplink data waiting to be sent. For different expected information, the UE uses the corresponding X-RNTI to perform CRC check with the information in the CCE.
  • the UE knows that the information is required by itself, and also knows the corresponding DCI format, modulation mode, Thereby further solving the DCI content. This is the so-called "blind check" process.
  • the UE uses different RNTIs in different states to descramble the CRC, obtain the PDCCH channel content, and finally obtain the content on the relevant PDSCH.
  • the scrambling process of the related PDSCH information is also related to the RNTI, that is, if the scrambling code of the PDCCH uses the SI-RNTI, the RNTI information in the scrambling code of the indicated PDSCH information is the SI-RNTI; if the PDCCH The scrambling code uses the P-RNTI, and the RNTI information in the scrambling code of the indicated PDSCH information is the P-RNTI; if the scrambling code of the PDCCH uses the C-RNTI, the interference of the indicated PDSCH information
  • the RNTI information in the code is C-RNTL
  • the so-called public search interval refers to the interval that all UEs need to monitor, and is usually used to send paging, RAR, system messages, and uplink power control messages common to some UEs.
  • the public search interval occupies a CCE starting at 0 to a maximum of 16.
  • the UE will demodulate the PDCCH and the PDSCH according to Table 1 below.
  • the scrambling code initialization of the PDSCH corresponding to these PDCCHs is related to the SI-RNTI. Table 1
  • the UE may also demodulate the PDCCH and the PDSCH according to Table 1. Only the scrambling code initialization of the PDSCH corresponding to these PDCCHs is related to the P-RNTI. Since the system broadcast message and the paging message of the interfering cell are sent in the physical resource corresponding to the CSS, the interfering cell may send or not transmit information with a low transmit power in a non-CSS area, such as the USS. At the same time, when the interfered cell selects to send a system broadcast message or a paging message on a non-CSS corresponding physical resource with less interference from the interfered cell, the possibility of correctly receiving the message can be effectively ensured.
  • FIG. 3 is a schematic flow chart of another embodiment of a method for transmitting and receiving downlink control information according to the present invention
  • FIG. 4 is a schematic diagram of a channel structure corresponding to FIG.
  • the resource in the physical resource corresponding to the USS of the PDCCH in the predetermined subframe is taken as an example.
  • the serving node of the interfered cell sends the first downlink control information on the first resource and the second resource; and the sequence number of the subframe where the first resource is located and the subframe where the second resource is located.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the first resource is the same as the sequence number of the subframe in which the first resource is located, and in the second
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • this embodiment includes:
  • Step 31 The PeNB sends the first downlink control information in the CSS of the PDCCH of the predetermined subframe and the physical resource corresponding to the USS, where the first downlink control information is used to schedule the SIB1 in the Pico cell, and in the predetermined subframe.
  • the SISCH in the Pico cell in which the first downlink control information is scheduled is transmitted in the PDSCH.
  • the CRC corresponding to the first downlink control information is scrambled by using the SI-RNTI.
  • the macro cell sends a second scheduling signal in a physical resource corresponding to the CSS of the predetermined subframe.
  • the second downlink control information is used to schedule SIB1 in the Macro cell, and the second downlink control information indicates the PDSCH including the SIB1 in the Macro cell; however, in the micro (Pico) cell, not only the physical resource corresponding to the CSS
  • the first downlink control information is sent, and the first scheduling information is also sent in a physical resource corresponding to the USS, where the first downlink control information indicates a PDSCH that includes the SIB1 in the Pico cell.
  • the physical resources corresponding to the CSS in FIG. 4 are separate from the physical resources corresponding to the USS.
  • the physical resources corresponding to the CSS and the physical resources corresponding to the USS may also be partially overlapped.
  • the physical resources corresponding to the CSS in the PDCCH and the physical resources corresponding to the CSS in the PDCCH of the Pico cell may also be partially overlapped.
  • Step 32 The UE served by the Pico base station detects the first downlink control information in the physical resource corresponding to the CSS and the physical resource corresponding to the USS, and acquires the SIB1 in the Pico cell in the PDSCH according to the first downlink control information.
  • the UE served by the Pico base station performs detection on the physical resources corresponding to the CSS and the physical resources corresponding to the USS as an example.
  • the UE served by the Pico base station can detect the scheduling information on the physical resource corresponding to the CSS, the UE may not detect the physical resource corresponding to the USS.
  • the UE performs the detection of the PDCCH and the PDSCH by using the table 2 to perform the detection on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource.
  • the search space of this embodiment includes not only CSS but also USS.
  • the UE may first decode according to different DCI formats, then use the SI-RNTI to perform descrambling and CRC check, and then obtain the correct DCI, and then obtain the SIB1 in the PDSCH according to the indication of the correct DCI. Message.
  • Table 2 can also be used to detect PDCCH and PDSCH.
  • the paging message is descrambled with the P-RNTI.
  • the scheduling information is included in the resource in the physical resource corresponding to the USS, and the first downlink control information is sent by using the resource with less interference in the physical resource corresponding to the USS, and the interference corresponding to the CSS is interfered. Small, can reduce interference and ensure correct demodulation of DCI by UE.
  • FIG. 5 is a schematic flow chart of another embodiment of a method for transmitting and receiving downlink control information according to the present invention
  • FIG. 6 is a schematic diagram of a channel structure corresponding to FIG. 5.
  • the protected resource is a physical resource corresponding to the extended CSS of the PDCCH in the predetermined subframe.
  • each PDCCH On the PDCCH, the basic unit carrying the DCI is a Control Channel Element (CCE), and each PDCCH is composed of 1, 2, 4 or 8 CCEs.
  • CCE Control Channel Element
  • the existing protocol specifies that the CSS consists of the 16 CCEs with sequence numbers 0-15.
  • the CSS is expanded. For example, a CCE having a sequence number of 16 to 23 is referred to as an extended CCE.
  • the serving node of the interfered cell sends the first downlink control information on the first resource and the second resource; and the sequence number of the subframe where the first resource is located and the subframe where the second resource is located.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the first resource is the same as the sequence number of the subframe in which the first resource is located, and in the second
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • this embodiment includes:
  • Step 51 The Pico base station sends the first downlink control information in the CSS corresponding to the PDCCH of the predetermined subframe and the physical resource corresponding to the extended CSS, where the first downlink control information is used to schedule the SIB1 in the Pico cell, and in the predetermined sub- The SIB1 in the Pico cell scheduled by the first downlink control information is sent in the PDSCH of the frame.
  • the CRC corresponding to the first downlink control information is scrambled by using the SI-RNTI.
  • the macro cell sends second scheduling information in a physical resource corresponding to the CSS of the predetermined subframe, where the second downlink control information is used to schedule SIB1 in the Macro cell, and the second downlink control information is included in the macro cell.
  • the PDSCH of the SIB1 in the micro (Pico) cell, the first downlink control information is sent not only in the physical resource corresponding to the CSS, but also in the physical resource corresponding to the extended CSS.
  • the first downlink control information indicates a PDSCH including SIB1 in the Pico cell.
  • the various physical resources in FIG. 6 are separated.
  • the physical resources corresponding to the CSS in the PDCCH of the Macro cell and the physical resources corresponding to the CSS in the PDCCH of the Pico cell may be partially overlapped.
  • Residential area The physical resources corresponding to the CSS in the PDCCH and the physical resources corresponding to the extended CSS in the PDCCH of the Pico cell may also be partially overlapping.
  • Step 52 The UE served by the Pico base station detects the first downlink control information in the physical resource corresponding to the CSS and the physical resource corresponding to the extended CSS, and acquires the SIB in the Pico cell in the PDSCH according to the first downlink control information. 1.
  • the scheduling information sent for scheduling SIB1 is scrambled by SI-RNTI, so the UE needs to use SI-RNTI for descrambling.
  • the UE served by the Pico base station performs detection on the physical resources corresponding to the CSS and the physical resources corresponding to the extended CSS.
  • the UE served by the Pico base station can detect the scheduling information on the physical resource corresponding to the CSS, the UE may not detect the physical resource corresponding to the extended CSS.
  • the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource are detected as an example.
  • this embodiment needs to search not only in the CSS but also in the extended CSS, such as Table 3 shows.
  • the UE may also use Table 3 to perform PDCCH and PDSCH detection. Unlike the SIB, the paging message is descrambled with the P-RNTI.
  • the scheduling information is included in the physical resource corresponding to the extended CSS, and the first downlink control information is sent by selecting a resource with less interference among the physical resources corresponding to the extended CSS, and the interference received by the interference is smaller than that of the CSS. , can reduce interference and ensure correct demodulation of DCI by UE.
  • scheduling information can be sent only once for all UEs, and scheduling information is not required to be sent once for each interfered UE, which can reduce overhead.
  • the foregoing two embodiments are carried in the PDCCH by using the scheduling information.
  • the foregoing scheduling information may also be carried in the E-PDCCH.
  • the specific description of the E-PDCCH is as follows: Since the uplink/downlink data scheduling of each user needs to be indicated by the PDCCH, the capacity of the PDCCH region directly limits the capacity of the cell to simultaneously schedule users.
  • E-PDCCH Enhanced-PDCCH
  • the data scheduling information is used to solve the interference problem of the PDCCH in the interference scenario.
  • the control channel of the Rel.ll user may be located in the PDCCH region of the first few OFDM symbols, or may be located in the E-PDCCH region.
  • the E-PDCCH region uses part of the time-frequency resource of the original PDSCH region, and the PDSCH can use frequency division multiplexing (FDM) or other forms.
  • FDM frequency division multiplexing
  • FIG. 7 is a schematic flow chart of another embodiment of a method for transmitting and receiving downlink control information according to the present invention
  • FIG. 8 is a schematic diagram of a channel structure corresponding to FIG. 7.
  • the protected resource is an E-PDCCH as an example.
  • the serving node of the interfered cell sends the first downlink control information on the first resource and the second resource; and the sequence number of the subframe where the first resource is located and the subframe where the second resource is located.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the first resource is the same as the sequence number of the subframe in which the first resource is located, and in the second
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • this embodiment includes:
  • Step 71 The PeNB sends the first downlink control information in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the physical resource occupied by the E-PDCCH, where the first downlink control information is used to schedule the SIB1 in the Pico cell. And transmitting SIB1 in the Pico cell scheduled by the first downlink control information in a PDSCH of a predetermined subframe.
  • the CRC corresponding to the first downlink control information is scrambled by using SI-RITN.
  • the macro cell sends second downlink control information in a physical resource corresponding to the CSS of the PDCCH of the predetermined subframe, where the second downlink control information is used to schedule SIB1 in the Macro cell, and the second downlink control information indication includes the Macro.
  • the PDSCH of the SIB1 in the cell however, in the micro (Pico) cell, the first downlink control is sent not only in the physical resource corresponding to the CSS of the PDCCH.
  • the first downlink control information is also sent in the physical resource occupied by the E-PDCCH, and the first downlink control information indicates the PDSCH including the SIB1 in the Pico cell.
  • the first downlink control information may be sent in a physical resource corresponding to the CSS of the E-PDCCH or a physical resource corresponding to the USS of the E-PDCCH.
  • Step 72 The UE of the Pico base station detects the first downlink control information in the physical resource corresponding to the CSS of the PDCCH and the physical resource occupied by the E-PDCCH, and acquires the Pico in the PDSCH according to the first downlink control information. SIB1 in the cell.
  • the detection is performed on the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource. Specifically, if the physical resource corresponding to the CSS of the E-PDCCH is specified to transmit the first downlink control information, the UE is configured. Searching for the physical resource corresponding to the CSS of the PDCCH and the physical resource corresponding to the CSS of the E-PDCCH; or, if the physical resource corresponding to the USS of the E-PDCCH is specified to transmit the first downlink control information, the UE is in the CSS of the PDCCH. The corresponding physical resource and the physical resource corresponding to the USS of the E-PDCCH are searched.
  • the UE can perform the demodulation using Table 4.
  • the UE in the Pico base station performs the detection on the physical resources corresponding to the CSS and the physical resources occupied by the E-PDCCH.
  • the UE of the Pico base station can detect the scheduling information on the physical resource corresponding to the CSS, the UE may no longer detect the physical resource occupied by the E-PDCCH.
  • the scheduling information in the E-PDCCH since the macro cell can reduce the transmission power on the resource corresponding to the E-PDCCH, the interference received by the E-PDCCH can be made smaller than the interference in the CSS of the PDCCH, and can be reduced. Interference to ensure correct demodulation of the DCI by the UE.
  • the foregoing embodiment takes the scheduling information in a predetermined subframe as an example, and the scheduling information may also be carried in the remaining subframes.
  • the predetermined subframe is a subframe number 5
  • the embodiment of the present invention may further specify that the scheduling information is further carried in the remaining subframes, such as the subframe 4.
  • FIG. 9 is a schematic flowchart of a method for transmitting and receiving downlink control information according to another embodiment of the present invention
  • FIG. 10 is a schematic diagram of a channel structure corresponding to FIG. 9.
  • the protected resource is an unscheduled subframe
  • the scheduling information in the unscheduled subframe in this embodiment indicates the same PDSCH as the scheduling information in the predetermined subframe.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is the same as the sequence number of the subframe in which the second resource is located, and the location on the first resource
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information sent on the second resource is located.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and a subframe in which the PDSCH corresponding to the first downlink control information that is sent by the second resource is located, and a subframe in which the PDSCH corresponding to the first downlink control information that is sent on the first resource is located
  • the serial number is the same.
  • this embodiment includes:
  • Step 91 The PeNB sends the first downlink control information in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource in the non-predetermined subframe, where the first downlink control information is used to schedule the SIB1 in the Pico cell. Scheduling information, and transmitting SIB1 in the Pico cell scheduled by the first downlink control information in a PDSCH of a predetermined subframe.
  • the CRC corresponding to the first downlink control information is scrambled by using SI-RITN.
  • the macro cell sends second downlink control information in the physical resource corresponding to the CSS of the predetermined subframe, where the second downlink control information is used to schedule SIB1 in the Macro cell, and the second downlink control information indication is included in the Macro cell.
  • the PDSCH of the SIB1 in the micro (Pico) cell, not only the first downlink control information is sent in the predetermined subframe, but also the first downlink control information is sent in the unscheduled subframe, the first downlink
  • the row control information also indicates the PDSCH of the SIB1 containing the Pico cell of the predetermined subframe.
  • the protected resource in the foregoing unscheduled subframe may be: a physical resource corresponding to the USS of the PDCCH of the unscheduled subframe, a physical resource corresponding to the extended CSS of the PDCCH of the non-predetermined subframe, and an E- of the non-predetermined subframe
  • Step 92 The UE served by the Pico base station detects the first downlink control information in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource in the non-predetermined subframe, and acquires the PDSCH according to the first downlink control information.
  • the SIB1 message in the Pico cell is the SIB1 message in the Pico cell.
  • the UE descrambles the received DCI in the search space with the SI-RNTI, and demodulates the PDSCH according to the indication of the DCI. For example, the detection of the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource is performed.
  • the search space of this embodiment includes the CSS of the PDCCH including the predetermined subframe.
  • protected resources of unscheduled subframes are also included.
  • the unscheduled subframe to be detected may also be pre-defined, for example, it is also required to be detected on the subframe 4, and the protected resource may also be pre-defined, for example, the USS of the PDCCH on the subframe 4.
  • the UE served by the Pico base station performs detection on both the predetermined subframe and the unscheduled subframe as an example.
  • the UE served by the Pico base station can detect the scheduling information on a predetermined subframe, it may not be detected on the unscheduled subframe.
  • the first downlink control information is sent by selecting the unscheduled subframe with less interference, and the interference received by the interference is smaller than the interference corresponding to the CSS of the PDCCH of the predetermined subframe. , can reduce interference and ensure correct demodulation of DCI by UE.
  • FIG. 11 is a schematic flowchart of a method for transmitting and receiving downlink control information according to another embodiment of the present invention
  • FIG. 12 is a schematic diagram of a channel structure corresponding to FIG. 11.
  • the protected resource is a non-predetermined subframe
  • the scheduling information in the unscheduled subframe and the scheduling information in the predetermined subframe in the embodiment indicate different PDSCHs.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located; where the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located
  • the sequence number of the frame is the same as the sequence number of the subframe in which the first resource is located, and the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent on the second resource is located and the second resource
  • the sequence number of the subframe in which it is located is the same.
  • Step 111 The PeNB sends the first downlink control information in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource in the non-predetermined subframe, where the first downlink control information is used to schedule the SIB1 in the Pico cell.
  • the CRC corresponding to the first downlink control information is scrambled by using SI-RITN.
  • the macro cell sends second downlink control information in the physical resource corresponding to the CSS of the predetermined subframe, where the second downlink control information is used to schedule SIB1 in the Macro cell, and the second downlink control information indication is included in the Macro cell.
  • the PDSCH of the SIB1 in the micro (Pico) cell, not only the first downlink control information is transmitted in the predetermined subframe, but also the first downlink control information is transmitted in the unscheduled subframe, the unscheduled subframe.
  • the PDSCH indicated by the first downlink control information is different from the PDSCH indicated by the first downlink control information of the predetermined subframe.
  • the protected resource in the foregoing unscheduled subframe may be: a physical resource corresponding to the USS of the PDCCH of the unscheduled subframe, a physical resource corresponding to the extended CSS of the PDCCH of the non-predetermined subframe, and an E- of the non-predetermined subframe
  • Step 112 The UE served by the Pico base station detects the first downlink control information in the physical resource corresponding to the CSS of the PDCCH of the predetermined subframe and the protected resource in the non-predetermined subframe, and acquires the PDSCH according to the first downlink control information. SIB1 in the Pico cell.
  • the UE served by the Pico base station performs detection on both the predetermined subframe and the unscheduled subframe as an example.
  • the UE served by the Pico base station can detect the scheduling information on a predetermined subframe, it may not be detected on the unscheduled subframe.
  • the UE may detect the first downlink control information and the third downlink control information on the unscheduled subframe, where the third downlink control information refers to a system other than SIB1 for scheduling the interfered cell.
  • Broadcast messages (such as SIB2, SIB3, etc.) or MIB scheduling information.
  • the first downlink control information and the third downlink control information are both information scrambled by the SI-RNTI. The UE cannot distinguish between the system broadcast message scheduled by the first downlink control information and the system broadcast message scheduled by the third downlink control information.
  • the current PDSCH may be indicated as SIB1 in the information of the PDSCH indicated by the first downlink control information, or may indicate that the current PDSCH is a system broadcast message or MIB other than the SIB1 message in the information of the PDSCH indicated by the third downlink control information.
  • UE root The subframe in which the PDSCH is indicated according to the received downlink control information determines whether the information in the current PDSCH is an SIB1 message or a system broadcast message or MIB other than the SIB1 message.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located, and the first downlink control information is used to schedule the service of the interfered cell.
  • the node is in the SIB1 transmitted by the physical downlink shared channel PDSCH of the interfered cell,
  • the data sent in the PDSCH corresponding to the first downlink control information includes first indication information, where the first indication information is used to indicate that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1 ; or,
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information is located is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the method further includes:
  • the serving node of the interfered cell sends third downlink control information, where the third downlink control information includes scheduling information for scheduling system broadcast messages other than the primary information block MIB and SIB1, except the primary information block MIB and SIB1.
  • System broadcast message is sent by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or,
  • the subframe number in which the PDSCH corresponding to the third downlink control information is located is used to identify that the data transmitted in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the main information block MIB and SIB1.
  • the first downlink control information is sent by selecting the unscheduled subframe with less interference, and the interference received by the interference is smaller than the interference corresponding to the CSS of the PDCCH of the predetermined subframe. , can reduce interference and ensure correct demodulation of DCI by UE.
  • FIG. 13 is a schematic structural diagram of a service node according to an embodiment of the present invention, including a determining module 131 and a first sending module 132;
  • the determining module 131 is configured to determine a first resource, where the first resource is located in at least one of the following items:
  • a physical resource included in the user-specific search space USS of the physical downlink control channel PDCCH an extended physical resource obtained by expanding the common search space CSS of the PDCCH, and a physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and , physical resources included in the CSS of the E-PDCCH;
  • the first sending module 132 is configured to send, according to the information about the first resource that is determined by the determining module, the first downlink control information of the interfered cell, where the first downlink control is sent,
  • the information includes scheduling information for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1, the paging message and/or SIB1 being addressed by a serving node of the interfered cell
  • the physical downlink shared channel PDSCH of the interfered cell is transmitted.
  • the node further includes:
  • a second sending module configured to send the first downlink control information on the second resource, where the second resource is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell, where
  • the second downlink control information includes a paging message for scheduling the interfering cell to be sent by the physical downlink shared channel PDSCH of the interfering cell and/or a scheduling message of the SIB1 message,
  • the sequence number of the subframe in which the first resource is used by the first sending module is the same as the sequence number of the subframe in which the second resource used by the second sending module is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • sequence number of the subframe in which the first resource is used by the first sending module is different from the sequence number of the subframe in which the second resource used by the second sending module is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or The sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the first downlink control information is used to schedule the serving node of the interfered cell to be
  • SIB1 transmitted by the physical downlink shared channel PDSCH of the interfering cell
  • the data sent in the PDSCH corresponding to the first downlink control information sent by the first sending module includes first indication information, where the first indication information is used to indicate that the first downlink control information is corresponding to
  • the data transmitted in the PDSCH includes the SIB1; or,
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the first sending module is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the third sending module is configured to send third downlink control information, where the third downlink control information is used to schedule, in addition to the main information block MIB, and the SIB1 sent by the physical downlink shared channel PDSCH of the interfering cell Scheduling information of a system broadcast message other than SIB1, the system broadcast message other than the main information block MIB and SIB1 is transmitted by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or,
  • the subframe number of the PDSCH corresponding to the third downlink control information is used to identify that the data sent in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the primary information block MIB and the SIB1.
  • the serving node of the interfered cell is a low power serving node; and the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes: expanding a CSS composed of a control channel unit CCE with a sequence number of 0 to 15, and obtaining an extended sequence number of the CSS greater than or equal to 16 CCE.
  • the interference caused by the interfering cell may be reduced as much as possible, and the UE of the interfered cell is correctly demodulated for the downlink control information.
  • FIG. 14 is a schematic structural diagram of an embodiment of a user equipment according to the present invention, the device includes a first receiving module 141 and a first acquiring module 142;
  • the first receiving module 141 is configured to receive, by using the first resource, the first downlink control information that is sent by the serving node of the interfered cell, where the first resource is located in at least one of the following items: a physical downlink control channel PDCCH
  • the first downlink control information includes: scheduling information for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1;
  • the first obtaining module 142 is configured to receive the first downlink control information that is sent by the first receiving module, and obtain the physical downlink shared channel indicated by the first downlink control information according to the first downlink control information.
  • Data in the PDSCH, the data in the PDSCH includes the paging message and/or SIB1.
  • the device further includes:
  • a second receiving module configured to receive the first downlink control information that is sent by the serving node on the second resource, where the second resource is a serving node of the interfering cell, where the serving cell is used to send the second downlink control information
  • the second downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message sent by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell.
  • sequence number of the subframe where the first resource is located and the subframe where the second resource is located The same serial number
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the first downlink control information is used to schedule the serving node of the interfered cell to be
  • SIB1 transmitted by the physical downlink shared channel PDSCH of the interfering cell
  • the data in the PDSCH that is acquired by the first acquiring module further includes first indication information, where the first indication information is used to indicate that the data in the PDSCH includes the SIB1; or the first acquiring module
  • the obtained subframe number of the subframe in which the PDSCH is located is used to identify that the data in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the device further includes:
  • a third receiving module configured to receive third downlink control information, where the third downlink control information includes scheduling information for scheduling system broadcast messages other than the primary information block MIB and the SIB1, where the primary information block MIB and the SIB1
  • the system broadcast message is sent by the serving node of the interfered cell on the PDSCH of the interfered cell; the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, and the second indication information is used by the second indication information.
  • the data that is sent in the PDSCH corresponding to the third downlink control information includes the system broadcast message except the primary information block MIB and the SIB1; or the subframe number of the PDSCH corresponding to the third downlink control information.
  • the data for identifying the PDSCH corresponding to the third downlink control information includes system broadcast messages other than the primary information block MIB and SIB1.
  • the serving node of the interfered cell is a low power serving node; and the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes: expanding a CSS composed of a control channel unit CCE with a sequence number of 0 to 15, and obtaining an extended sequence number of the CSS greater than or equal to 16 CCE.
  • the interference caused by the interfering cell may be reduced as much as possible, and the UE of the interfered cell is correctly demodulated for the downlink control information.
  • Figure 15 is a schematic structural diagram of another embodiment of a service node according to the present invention, including a processor 151 and a transmitter 152;
  • the processor 151 is used for the following reasons:
  • Determining a first resource the first resource being located in at least one of the following:
  • a physical resource included in the user-specific search space USS of the physical downlink control channel PDCCH an extended physical resource obtained by expanding the common search space CSS of the PDCCH, and a physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and , physical resources included in the CSS of the E-PDCCH;
  • the transmitter 152 is configured to send, by using the first resource, first downlink control information of the interfered cell, where the first downlink control information includes a paging message sent by a serving node for scheduling the interfered cell. And/or scheduling information of the system message block SIB1, said paging message and/or SIB1 being The serving node of the interfered cell transmits on the physical downlink shared channel PDSCH of the interfered cell.
  • the transmitter is further configured to:
  • the second resource is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell, where the second downlink control information includes a physical downlink shared channel PDSCH of the serving node for scheduling the interfering cell in the interfering cell.
  • the paging message sent and/or the scheduling information of the SIB1 message is a resource used by the serving node of the interfering cell to send the second downlink control information in the interfering cell, where the second downlink control information includes a physical downlink shared channel PDSCH of the serving node for scheduling the interfering cell in the interfering cell.
  • sequence number of the subframe where the first resource is located is the same as the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located.
  • the sequence number of the subframe in which the first resource is located is different from the sequence number of the subframe in which the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and in the second The sequence number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the resource is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the first downlink control information is used to schedule the serving node of the interfered cell to transmit SIB1 on the physical downlink shared channel PDSCH of the interfered cell,
  • the data sent in the PDSCH corresponding to the first downlink control information sent by the transmitter includes first indication information, where the first indication information is used to indicate that the PDSCH corresponding to the first downlink control information is used.
  • the transmitted data contains the SIB1; or,
  • the subframe number of the subframe in which the PDSCH corresponding to the first downlink control information that is sent by the sender is used to identify that the data sent in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the transmitter is further configured to: send third downlink control information, where the third downlink control information includes scheduling system broadcasts other than the main information block MIB and the SIB1, when the SIB1 is sent by the physical downlink shared channel PDSCH of the interfering cell. Scheduling information of the message, the system broadcast message except the main information block MIB and SIB1 is sent by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the Information block MIB and system broadcast messages other than SIB1; or,
  • the subframe number in which the PDSCH corresponding to the third downlink control information is located is used to identify that the data transmitted in the PDSCH corresponding to the third downlink control information includes a system broadcast message other than the main information block MIB and SIB1.
  • the serving node of the interfered cell is a low power serving node; and the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes: expanding a CSS composed of a control channel unit CCE with a sequence number of 0 to 15, and obtaining an extended sequence number of the CSS greater than or equal to 16 CCE.
  • the interference caused by the interfering cell may be reduced as much as possible, and the UE of the interfered cell is correctly demodulated for the downlink control information.
  • FIG. 16 is a schematic structural diagram of another embodiment of a user equipment according to the present invention, including a receiver 161 and Processor 162;
  • the receiver 161 is configured to receive, by using the first resource, the first downlink control information that is sent by the serving node of the interfered cell, where the first resource is located in at least one of the following items: The physical resource included in the search space USS, the extended physical resource obtained by extending the common search space CSS of the PDCCH, the physical resource included in the USS of the enhanced physical downlink control channel E-PDCCH, and the CSS included in the E-PDCCH
  • the first downlink control information includes: a scheduling message for scheduling a paging message sent by a serving node of the interfered cell and/or a system message block SIB1;
  • the processor 162 is configured to acquire, according to the first downlink control information, data in a physical downlink shared channel (PDSCH) indicated by the first downlink control information, where data in the PDSCH includes the paging message and/or SIB1.
  • PDSCH physical downlink shared channel
  • the receiver is further configured to:
  • the downlink control information includes scheduling information for scheduling a paging message and/or an SIB1 message transmitted by the serving node of the interfering cell on the physical downlink shared channel PDSCH of the interfering cell.
  • sequence number of the subframe where the first resource is located is the same as the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information is received by the receiver is the same as the sequence number of the subframe in which the first resource is located, and is sent on the second resource.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the second resource is located.
  • sequence number of the subframe where the first resource is located is different from the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information is received by the receiver is the same as the sequence number of the subframe in which the first resource is located, and is sent on the second resource.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and a sequence of a subframe in which the PDSCH corresponding to the first downlink control information that is sent by the second resource is located, and a physical downlink shared channel (PDSCH) corresponding to the first downlink control information that is sent on the first resource.
  • the sub-frame is in the same sequence number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • sequence number of the subframe where the first resource is located is the same as the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information is received by the receiver is the same as the sequence number of the subframe in which the first resource is located, and is sent on the second resource.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the second resource is located. .
  • sequence number of the subframe where the first resource is located is different from the sequence number of the subframe where the second resource is located;
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information is received by the receiver is the same as the sequence number of the subframe in which the first resource is located, and is sent on the second resource.
  • the sequence number of the subframe in which the PDSCH corresponding to the first downlink control information is located is the same as the sequence number of the subframe in which the second resource is located; or
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located is the same as the sequence number of the subframe in which the first resource is located, and the second resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the first resource is located The same serial number; or,
  • the sequence number of the subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located is the same as the sequence number of the subframe in which the second resource is located, and the first resource is a subframe in which the PDSCH corresponding to the first downlink control information that is sent is located, and a subframe in which the physical downlink shared channel PDSCH corresponding to the first downlink control information that is sent on the second resource is located
  • the serial number is the same.
  • the first downlink control information is used to schedule the serving node of the interfered cell to be
  • SIB1 transmitted by the physical downlink shared channel PDSCH of the interfering cell
  • the data in the PDSCH obtained by the processor further includes first indication information, where the first indication information is used to indicate that the data in the PDSCH includes the SIB1; or
  • the subframe number of the subframe in which the PDSCH is obtained by the processor is used to identify that the data in the PDSCH corresponding to the first downlink control information includes the SIB1.
  • the receiver is further configured to: receive third downlink control information, where the third downlink control information includes scheduling system broadcasts other than the main information block MIB and the SIB1, when the SIB1 is sent by the physical downlink shared channel PDSCH of the interfering cell. Scheduling information of the message, the system broadcast message except the main information block MIB and SIB1 is sent by the serving node of the interfered cell on the PDSCH of the interfered cell;
  • the data sent in the PDSCH corresponding to the third downlink control information includes second indication information, where the second indication information is used to indicate that the data sent in the PDSCH corresponding to the third downlink control information includes the a system broadcast message other than the information block MIB and the SIB1; or the subframe number of the PDSCH corresponding to the third downlink control information is used to identify that the data sent in the PDSCH corresponding to the third downlink control information includes the main information Block MIB and system broadcast messages other than SIB1.
  • the serving node of the interfered cell is a low power serving node; and the serving node of the interfering cell is a high power serving node.
  • the extended physical resource obtained by extending the CSS of the PDCCH includes: expanding a CSS composed of a control channel unit CCE with a sequence number of 0 to 15, and obtaining an extended sequence number of the CSS greater than or equal to 16 CCE.
  • the interference caused by the interfering cell may be reduced as much as possible, and the UE of the interfered cell is correctly demodulated for the downlink control information.
  • the service node shown in FIG. 13 or 15 may be a device that specifically performs the function of the service node of the interfered UE.
  • the functions of the modules in FIG. 13 and FIG. 15 may be specifically referred to the service node of the interfered UE in the foregoing method embodiment.
  • the user equipment shown in FIG. 14 or 16 may be For the function of the above-mentioned method, the function of each module in FIG. 14 and FIG. 16 can be specifically referred to the corresponding description of the interfered UE in the foregoing method embodiment.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明公开一种下行控制信息的发送、接收方法、服务节点及用户设备。该方法包括被干扰UE的服务节点确定被保护的资源,所述被保护的资源位于如下项中的至少一项中:PDCCH中的USS对应的物理资源、PDCCH中的扩展CSS对应的物理资源、E-PDCCH中的USS对应的物理资源,或者,E-PDCCH中的CSS对应的物理资源;所述服务节点在所述被保护的资源上,发送被干扰小区的第一下行控制信息,所述第一下行控制信息包括:用于调度所述被干扰小区的寻呼消息和/或SIB1消息的调度信息。本发明可以降低异构网络中对系统广播消息、寻呼消息等的干扰。

Description

下行控制信息的发送、 接收方法、 服务节点及用户设备 技术领域 本发明涉及无线通信技术, 尤其涉及一种下行控制信息的发送、 接收方 法、 服务节点及用户设备 ( User Equipment, UE )。 背景技术
异构网络( Heterogeneous Network, Hetnet )是指由不同功率的服务节点 组成的网络, 这些良务节点包括宏基站( Macro eNB )、 微基站(Pico eNB )、 家庭基站 (H-eNB )、 中继器(Relay ) 等。 在异构网络中, 高功率的服务节 点会对低功率的服务节点造成干扰,例如,宏基站的发送功率通常为 46dBm, Pico基站的发送功率通常为 30dBm, Pico基站服务的 UE会受到宏基站的干 扰。 特别是在小区范围扩展(Cell Range Expansion, CRE )场景下, CRE是 指即便 UE从 Pico基站接收到的功率低于从宏基站接收的功率,也会选择 Pico 基站作为服务小区, 此时, 来自宏基站的干扰信号甚至比来自 Pico基站的有 用信号强度还要大。 为了保证异构网络的系统性能, 需要保证被干扰小区的 UE能够正确解调下行控制信息(Down Control Information, DCI ), 从而需要 降低不同功率的服务节点之间的干扰。
可以用时分复用 ( Time Division Multiplexing, TDM )方案来解决小区间 的干扰问题。 TDM方案中, 干扰小区在不同的子帧上釆用不同的发射功率, 例如将子帧分为正常子帧 (Normal subframe )和几乎空子帧 (Almost Blank subframe ), 其中, 正常子帧的发射功率较大, 几乎空子帧的发射功率较小或 为 0。 此时, 被干扰小区可以在几乎空子帧上调度容易受到干扰小区影响的 UE, 使得这些 UE在时间资源上受到干扰小区造成的干扰较弱, 从而解决被 干扰小区受到强干扰的问题。
但是, 被干扰小区的某些 DCI, 如用于调度系统广播消息和寻呼消息的 DCI依然会受到强干扰。 发明内容
有鉴于此, 本发明实施例提供了一种下行控制信息的发送、 接收方法、 服务节点及用户设备, 用以降低对被干扰小区系统广播消息、 寻呼消息的强 干扰。
一方面, 提供了一种下行控制信息的发送方法, 包括:
被干扰小区的服务节点确定第一资源, 所述第一资源位于如下项中的至 少一项中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 US包括的物理资源, 和, E-PDCCH的 CSS 包括的物理资源;
所述服务节点在所述第一资源上,发送被干扰小区的第一下行控制信息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点发送的寻呼 消息和 /或系统消息块 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述被干 扰小区的服务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
在一种可能的实现方式中, 该方法还包括:
所述被干扰小区的服务节点在第二资源上发送所述第一下行控制信息; 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信 在另一种可能的实现方式中,
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号相同; 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与第二资 源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 在所述第一下行控制信息对应的 PDSCH 中发送的数据包括第一指示信 息, 所述第一指示信息用于指示在所述第一下行控制信息对应的 PDSCH 中 发送的数据包含所述 SIB1 ; 或,
在所述第一下行控制信息对应的 PDSCH所在的子帧的子帧号用于标识 在所述第一下行控制信息对应的 PDSCH中发送的数据包含所述 SIB1。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述方法还包括:
被干扰小区的服务节点发送第三下行控制信息, 所述第三下行控制信息 包括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
在另一种可能的实现方式中,被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节点为高功率服务节点。
在另一种可能的实现方式中, 所述将 PDCCH的 CSS扩展后得到的扩展 出的物理资源, 包括:
将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
另一方面, 提供了一种下行控制信息的接收方法, 包括:
被干扰小区的用户设备 UE在第一资源上, 接收被干扰小区的服务节点 发送的第一下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理 下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、将 PDCCH 的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的物理下行控 制信道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物 理资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点 发送的寻呼消息和 /或系统消息块 SIB1的调度信息;
所述 UE根据所述第一下行控制信息, 获取所述第一下行控制信息指示 的物理下行共享信道 PDSCH中的数据,所述 PDSCH中的数据包括所述寻呼 消息和 /或 SIB1。
在一种可能的实现方式中, 还包括: 所述 UE接收所述服务节点在第二 资源上发送的所述第一下行控制信息, 所述第二资源为干扰小区的服务节点 在干扰小区用于发送第二下行控制信息的资源, 所述第二下行控制信息包括 用于调度干扰小区的服务节点在干扰小区的物理下行共享信道 PDSCH发送 的寻呼消息和 /或 SIB1消息的调度信息。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与第二资 源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与第二资 源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述 PDSCH 中的数据还包括第一指示信息, 所述第一指示信息用于指 示在所述 PDSCH中的数据包含所述 SIB1 ; 或者,
所述 PDSCH 所在的子帧的子帧号用于标识在所述第一下行控制信息对 应的 PDSCH中的数据包含所述 SIB1。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述方法还包括:
所述 UE接收第三下行控制信息, 所述第三下行控制信息包括用于调度 除了主信息块 MIB以及 SIBl以外的系统广播消息的调度信息, 所述除了主 信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的服务节点在 被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
在另一种可能的实现方式中,被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节点为高功率服务节点。
在另一种可能的实现方式中, 所述将 PDCCH的 CSS扩展后得到的扩展 出的物理资源, 包括:
将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
另一方面, 提供一种服务节点, 包括:
确定模块, 用于确定第一资源, 所述第一资源位于如下项中的至少一项 中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
第一发送模块, 用于根据所述确定模块确定的所述第一资源的信息, 并 在所述第一资源上, 发送被干扰小区的第一下行控制信息, 所述第一下行控 制信息包括用于调度所述被干扰小区的服务节点发送的寻呼消息和 /或系统 消息块 SIB1的调度信息, 所述寻呼消息和 /或 SIB1由所述被干扰小区的服务 节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
在一种可能的实现方式中, 还包括: 第二发送模块, 用于在第二资源上 发送所述第一下行控制信息;
所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信 在另一种可能的实现方式中,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号相 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与所述第 二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 中发 送的数据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控 制信息对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 所在 的子帧的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的 数据包含所述 SIB1。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述节点还包括:
第三发送模块, 用于发送第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
另一方面, 提供一种用户设备, 包括:
第一接收模块, 用于在第一资源上, 接收被干扰小区的服务节点发送的 第一下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行控 制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公 共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的物理下行控制信 道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物理资 源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发送 的寻呼消息和 /或系统消息块 SIB1的调度信息;
第一获取模块, 用于接收所述第一接收模块发送的所述第一下行控制信 息, 根据所述第一下行控制信息, 获取所述第一下行控制信息指示的物理下 行共享信道 PDSCH中的数据, 所述 PDSCH中的数据包括所述寻呼消息和 / 或 SIB1。
在一种可能的实现方式中, 还包括: 第二接收模块, 用于接收所述服务 节点在第二资源上发送的所述第一下行控制信息, 所述第二资源为干扰小区 的服务节点在干扰小区用于发送第二下行控制信息的资源, 所述第二下行控 制信息包括用于调度干扰小区的服务节点在干扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
在另一种可能的实现方式中, 所述第一接收模块釆用的所述第一资源所 在的子帧的序号与所述第二接收模块釆用的所述第二资源所在的子帧的序号 相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号不 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述第一获取模块获取的所述 PDSCH 中的数据还包括第一指示信息, 所述第一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者, 所述第一获取模块获取的所述 PDSCH 所在的子帧的子帧号用于标识在 所述第一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述设备还包括:
第三接收模块, 用于接收第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送; 在所述第三下行控制信息对应的 PDSCH中发送的数据包括第二指示信息,所述第二指示信息用于指示在所述 第三下行控制信息对应的 PDSCH中发送的数据包含所述除了主信息块 MIB 以及 SIB1以外的系统广播消息;或者,所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第三下行控制信息对应的 PDSCH 中发送的数 据包含除了主信息块 MIB以及 SIB1以外的系统广播消息。
另一方面, 提供一种服务节点, 包括:
处理器, 用于确定第一资源, 所述第一资源位于如下项中的至少一项中: 物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
发送器, 用于在所述第一资源上, 发送被干扰小区的第一下行控制信息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点发送的寻呼 消息和 /或系统消息块 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述被干 扰小区的服务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。 在一种可能的实现方式中, 所述发送器还用于:
在第二资源上发送所述第一下行控制信息;
所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信 息。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与所述第 二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号不 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。 在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 在所述发送器发送的所述第一下行控制信息对应的 PDSCH 中发送的数 据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控制信息 对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述发送器发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的数据包 含所述 SIB1。
在另一种可能的实现方式中, 当所述第一资源所在的子帧的序号与第二 资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰 小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述发送器还用于:
发送第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
另一方面, 提供一种用户设备, 包括:
接收器, 用于在第一资源上, 接收被干扰小区的服务节点发送的第一下 行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索 空间 CSS 进行扩展得到的扩展出的物理资源、 增强的物理下行控制信道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物理资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发送的寻 呼消息和 /或系统消息块 SIB1的调度信息;
处理器, 用于根据所述第一下行控制信息, 获取所述第一下行控制信息 指示的物理下行共享信道 PDSCH中的数据,所述 PDSCH中的数据包括所述 寻呼消息和 /或 SIB1。
在一种可能的实现方式中, 所述接收器还用于:
接收所述服务节点在第二资源上发送的所述第一下行控制信息, 所述第 二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制信息的资 源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干扰小区的 物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
在另一种可能的实现方式中, 所述第一资源所在的子帧的序号与第二资 源所在的子帧的序号相同;
所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
在另一种可能的实现方式中,
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同; 所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
在另一种可能的实现方式中,
当所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被干扰小区 的物理下行共享信道 PDSCH发送的 SIB1时,
所述处理器得到的所述 PDSCH 中的数据还包括第一指示信息, 所述第 一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者,
所述处理器得到的所述 PDSCH所在的子帧的子帧号用于标识在所述第 一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。。
在另一种可能的实现方式中,
当所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被干扰小区 的物理下行共享信道 PDSCH发送的 SIB1时, 所述接收器还用于:
接收第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。。
通过上述技术方案, 被干扰 UE的服务节点在第一资源上发送被干扰小 区的 SIB1 和 /或寻呼消息, 由于第一资源与预设资源会尽量分离, 而干扰小 区是在该预设资源上釆用较大的功率发送下行控制信息, 非预设资源上的功 率可以较小, 因此可以降低对被干扰小区的 SIB1、 寻呼消息的强干扰。 附图说明 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中 所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图是本发 明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的 前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明下行控制信息的发送方法一实施例的流程示意图; 图 2为本发明下行控制信息的接收方法一实施例的流程示意图; 图 3 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图;
图 4为图 3对应的信道结构示意图;
图 5 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图;
图 6为图 5对应的信道结构示意图;
图 7 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图;
图 8为图 7对应的信道结构示意图;
图 9为本发明下行控制信息的发送及接收方法另一实施例的方法流程示 意图;
图 10为图 9对应的信道结构示意图;
图 11 为本发明下行控制信息的发送及接收方法另一实施例的方法流程 示意图;
图 12为图 11对应的信道结构示意图;
图 13为本发明服务节点一实施例的结构示意图;
图 14为本发明用户设备一实施例的结构示意图;
图 15为本发明服务节点另一实施例的结构示意图;
图 16为本发明用户设备另一实施例的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
干扰小区为发射的信号对其他小区造成干扰的小区,可以称为侵害小区; 被干扰小区为受到其他小区发射的信号的干扰的小区, 可以称为受害小 区。
现有协议中规定一些消息, 如系统广播消息、 寻呼消息等需要在规定的 子帧上传输, 这些规定的子帧, 也就是可能存在系统广播消息或寻呼消息的 子帧可以称为预定子帧。
具体的, 系统广播消息分为主信息块( Master Information Block, MIB ) 和系统信息块( System Information Block, SIB ) , SIB根据不同的重复周期 和包含的内容分为 SIB1、 SIB2等。 例如, SIB1的调度周期是 80ms, 也就是 在系统无线帧号(System Frame Number, SFN )为 8的整数倍, 即 SFN%8=0 处调度发送, 并且在 SFN%2=0 处重复发送, 并且, 现有协议规定在这些无 线帧 ( SFN%8=0以及 SFN%2=0 ) 的第 5号子帧上发送 SIB1。
对于寻呼(Paging )消息, UE在自己相应的寻呼无线帧上的寻呼时刻先 去监听物理下行控制信道 ( Physical Downlink Control Channel, PDCCH )上 是否携带寻呼无线网络临时标识( Paging Radio Network Temporary Identifier, P-RNTI ) , 进而去判断相应的物理下行共享信道(Physical Downlink Shared Channel, PDSCH )上是否承载有对该 UE的寻呼消息。 根据寻呼相关算法, 频分双工 (Frequency Division Duplex, FDD ) 系统中寻呼时刻可能出现的子 帧位置是一个帧中的第 0、 4、 5、 9号子帧, 时分双工(Time Division Duplex, TDD ) 系统中 PO (Paging occasion,寻呼时刻)可能出现的子帧位置是一个子 帧中的第 0、 1、 5、 6号子帧。
本文中为了描述方便,将这些可能存在 SIB1消息或寻呼消息的子帧称为 预定子帧, 例如, 该预定子帧包括对应 SIB1的第 5号子帧, 或者, 对应寻呼 消息的第 0、 4、 5、 9号子帧或 0、 1、 5、 6号子帧,将 SIB1和 Paging消息在 预定的子帧中发送, 这样空闲态的 UE可以只在这些预定的子帧监听 SIB1和 Paging的 PDCCH , 有省电的好处。
现有技术中, 为了保证后向兼容性等问题, 异构网络中的干扰小区 (如 宏小区)和被干扰小区 (如 Pico小区) 的系统广播消息和寻呼消息都是在预 定子帧上发送的, 为了解决此时的干扰问题, 本发明给出如下实施例。
图 1为本发明下行控制信息的发送方法一实施例的流程示意图, 包括: 步骤 11 : 被干扰小区的服务节点确定第一资源, 所述第一资源位于如下 项中的至少一项中:
PDCCH的 USS包括的物理资源、 将 PDCCH的 CSS进行扩展得到的扩 展出的物理资源、 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS 包括的物理资源;
其中, 第一资源也可以称为被保护的资源, 在被保护的资源上, 可以避 免干扰小区和被干扰小区的用于调度寻呼消息和 SIB1消息的调度信息正碰。
步骤 12: 所述服务节点在所述第一资源上, 发送被干扰小区的第一下行 控制信息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点 发送的寻呼消息和 /或 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述被干 扰小区的服务节点在所述被干扰小区的 PDSCH发送。
其中, 被干扰小区是该被干扰 UE所在的小区。 本发明实施例中, 被干 扰小区以微(Pico )小区为例, 干扰小区以宏 (Macro ) 小区为例。 在预定子 帧上发送的消息以 SIB1消息为例, 对于寻呼消息可以参照执行。
如上所述, 宏小区的 SIB1 消息将在预定子帧上发送, 另外, 用于调度 SIB1 消息的调度信息是在该预定子帧的 PDCCH的公共搜索空间 (Common Search Space, CSS )对应的物理资源中发送的。 也就是说, 承载干扰小区的 用于调度 SIB 1消息和 /或寻呼消息的调度信息的资源位于预定子帧的 PDCCH 的 CSS对应的物理资源中。
本发明实施例中, 为了降低干扰的影响,微小区的 SIB1的调度信息将不 仅可以在预定子帧的 PDCCH的 CSS对应的物理资源上传输, 还可以在另外 的资源上传输。
也就是, 可选的, 该方法还包括: 所述被干扰小区的服务节点在第二资 源上发送所述第一下行控制信息, 所述第二资源为干扰小区的服务节点在干 扰小区用于发送第二下行控制信息的资源, 所述第二下行控制信息包括用于 调度干扰小区的服务节点在干扰小区的物理下行共享信道 PDSCH发送的寻 呼消息和 /或 SIB1消息的调度信息。
该第二资源可以位于上述预定子帧中的 PDCCH的 CSS包括的物理资源 中。
由于干扰小区的服务节点是在第二资源上发送第二下行控制信息, 被干 扰小区的服务节点在第一资源上发送第一下行控制信息时, 相对于被干扰小 区的服务节点在第二资源上发送第一下行控制信息受到的干扰小, 就可以尽 量保证第一下行控制信息被 UE正确接收。
可选的, 微小区的 SIB1 的调度信息也可以不在预定子帧的 PDCCH的 CSS对应的物理资源上传输, 而只在另外的资源上传输。
可选的, 第一资源可以位于非预定子帧内的资源中。
进一步的, 非预定子帧内的资源可以为: 非预定子帧内的 PDCCH的用 户专用搜索空间 (UE-Specific Search Space, USS )对应的物理资源、 非预定 子帧内的 PDCCH的 CSS对应的物理资源、 非预定子帧内的增强的 PDCCH ( Enhanced PDCCH, E-PDCCH ) 的 USS对应的物理资源或者非预定子帧内 的 E-PDCCH的 CSS对应的物理资源。
可选的, 第一资源也可以位于预定子帧内的非 PDCCH的 CSS对应的物 理资源中。
进一步的, 非 PDCCH的 CSS对应的物理资源可以为: PDCCH的 USS 对应的物理资源、 PDCCH的 CSS进行扩展得到的扩展出的物理资源 (该物 理资源可以简称为扩展 CSS对应的物理资源) 、 E-PDCCH的 USS对应的物 理资源或者 E-PDCCH的 CSS对应的物理资源。
可选的, 该扩展出的物理资源可以釆用如下方式得到: 将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩展出的属于 CSS的序 号大于或等于 16的 CCE。
具体釆用哪种第一资源可以通过预先配置的方式确定。
相应的, 参见图 2, 被干扰小区的 UE执行如下流程:
步骤 21 : 被干扰小区的 UE在第一资源上, 接收被干扰小区的服务节点 发送的第一下行控制信息, 所述第一资源位于如下项中的至少一项中: PDCCH的 USS包括的物理资源、 将 PDCCH的 CSS进行扩展得到的扩展出 的物理资源、 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括 的物理资源, 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务 节点发送的寻呼消息和 /或 SIB1的调度信息; 步骤 22: 所述 UE根据所述第一下行控制信息, 获取所述第一下行控制 信息指示的 PDSCH中的数据, 所述 PDSCH中的数据包括所述寻呼消息和 / 或 SIB1。
也就是说, 如果微小区的 SIB1的调度信息将不仅在预定子帧的 PDCCH 的 CSS对应的物理资源上传输,还在另外的资源上传输,则与现有技术相比, 对于某些 UE,这些 UE不仅需要在预定子帧的 PDCCH的 CSS中检测第一下 行控制信息, 还需要在第一资源上检测第一下行控制信息。 当然, 可以理解 的是 , UE的第一下行控制信息还可以依然在预定子帧的 PDCCH的 CSS对应 的物理资源上发送, 如果 UE在预定子帧的 PDCCH的 CSS对应的物理资源 上可以检测到第一下行控制信息, 则可以不再去第一资源上检测; 如果 UE 在预定子帧的 PDCCH的 CSS对应的物理资源上没有检测到第一下行控制信 息, 则去第一资源上检测第一下行控制信息。
也就是, 可选的, 该方法还可以包括: 所述 UE接收所述服务节点在第 二资源上发送的所述第一下行控制信息, 所述第二资源为干扰小区的服务节 点在干扰小区用于发送第二下行控制信息的资源, 所述第二下行控制信息包 括用于调度干扰小区的服务节点在干扰小区的 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
或者, 如果微小区的 SIB1 的调度信息不在预定子帧的 PDCCH的 CSS 对应的物理资源 (也就是第二资源)上传输, 而在另外的资源上传输, 则与 现有技术相比,UE不需要在预定子帧的 PDCCH的 CSS中检测第一下行控制 信息 , 而是在第一资源上检测第一下行控制信息。
在检测第一下行控制信息时, 可以先根据不同的 DCI格式进行译码, 然 后根据对应的 RNTI (如 SI-RNTI或 P-RNTI )进行解扰和 CRC校验, 以得到 正确的第一下行控制信息。 之后, 根据第一下行控制信息的指示得到对应的 PDSCH中的数据, 如被干扰小区的 SIB1消息或者寻呼消息。
可选的, 预定子帧的 PDCCH的 CSS对应的物理资源上的第一下行控制 信息和第一资源上的第一下行控制信息所指示的 PDSCH可以相同或者不同。 具体可以包括:
可选的, 所述第一资源所在的子帧的序号与第二资源所在的子帧的序号 相同; 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。 或者,
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同; 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。 本实施例中, 由于被干扰小区的调度 信息在第一资源上发送的, 可以尽量降低干扰小区引起的干扰, 保证被干扰 小区的 UE正确解调下行控制信息。
LTE下行数据传输时, PDSCH承载基站发送给 UE的数据, PDCCH承 载着其对应的 PDSCH 的调度信息, 该调度信息主要用来指示与其对应的 PDSCH的传输格式信息, 包括资源的分配、 传输块的大小、 调制编码方式、 传输的秩以及预编码矩阵信息等, PDCCH和 PDSCH复用在一个子帧中。 在 一个子帧中,所有调度用户设备的 PDCCH复用在一起, 然后在 PDCCH区域 发送。
PDCCH的映射资源可以分为 CSS和 USS, 对于系统广播消息、 寻呼消 息、 随机接入应答消息、 功控消息等消息的调度信息可以在 CSS对应的物理 资源中传输, 对于针对 UE特定数据的调度信息可以在 USS对应的物理资源 中传输。 每个 PDCCH中, 包含 16bit的 CRC校验, UE用来验证接收到的 PDCCH是否正确, 并且 CRC使用和 UE相关的 RNTI进行扰码,使得 UE能 够确定哪些 PDCCH是自己需要接收的,哪些是发送给其他 UE的。 而且对一 个 UE 来说,针对不同各类型的服务有不同的 RNTI,比如, SI-RNTI, C-RNTI, P-RNTI, RA-RNTI, SPS-RNTI等。这些 RNTI用于给 PDCCH中信息的 CRC 加扰。 寻呼消息、 系统广播消息 CRC的加扰分别用 P-RNTI、 SI-RNTI进行 加扰。 UE在接收这些消息之前是知道这些标识的。
UE用盲检测的方式获取 PDCCH中承载的信息, 盲检测过程如下: UE 一般不知道当前 PDCCH的 DCI传送的是什么 format的信息, 也不知道自己 需要的信息在哪个位置。但是 UE知道自己当前在期待什么信息,例如在 Idle 态 UE期待的信息是 paging, SI; 发起 Random Access后期待的是 RACH Response; 在有上行数据等待发送的时候期待 UL Grant等。 对于不同的期望 信息 UE用相应的 X-RNTI去和 CCE中的信息做 CRC校验, 如果 CRC校验 成功, 那么 UE就知道这个信息是自己需要的, 也知道相应的 DCI format, 调制方式, 从而进一步解出 DCI内容。 这就是所谓的"盲检"过程。 盲检测过 程中 UE在不同状态,使用不同 RNTI,去解扰 CRC,获取 PDCCH信道内容,并最 终获取其相关的 PDSCH上的内容。相关的 PDSCH的信息的加扰过程也是和 RNTI相关的, 即, 如果 PDCCH的扰码用的是 SI-RNTI,则其指示的 PDSCH 的信息的扰码中的 RNTI信息是 SI-RNTI;如果 PDCCH的扰码用的是 P-RNTI, 则其指示的 PDSCH的信息的扰码中的 RNTI信息是 P-RNTI; 如果 PDCCH的 扰码用的是 C-RNTI,则其指示的 PDSCH 的信息的扰码中的 RNTI信息是 C-RNTL
另外, 为了提高盲检效率, LTE中划分了 CSS和 USS, 对于不同的信 息在不同的空间里搜索。 所谓公共搜索区间是指所有 UE都需要监听的区间, 通常用来发送寻呼, RAR, 系统消息, 以及部分 UE公用的上行功率控制消 息等。 公共搜索区间占据从 0开始到最大数目为 16的 CCE。
如果高层配置 UE解调用 SI-RNTI加扰 CRC的 PDCCH, 则 UE将按照 如下表 1解调 PDCCH和 PDSCH。 这些 PDCCH对应的 PDSCH的扰码初始 化和 SI-RNTI相关。 表 1
Figure imgf000023_0001
如果高层配置 UE解调用 P-RNTI加扰 CRC的 PDCCH,则 UE也可以按 照表 1解调 PDCCH和 PDSCH。 只是这些 PDCCH对应的 PDSCH的扰码初 始化和 P-RNTI相关。 由于干扰小区的系统广播消息和寻呼消息是在 CSS对 应的物理资源中发送的, 干扰小区可以在非 CSS区域,例如 USS中釆用低发 射功率发送信息或者不发送信息。 同时, 被干扰小区选择在受干扰小区干扰 较小的非 CSS对应的物理资源上发送系统广播消息或寻呼消息时, 可以有效 保证这些消息正确接收的可能性。
图 3 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图, 图 4为图 3对应的信道结构示意图。 本实施例以被保护资源为预定子帧 中 PDCCH的 USS对应的物理资源中的资源为例。
本实施例中, 被干扰小区的服务节点在第一资源和第二资源上均发送第 一下行控制信息; 且, 所述第一资源所在的子帧的序号与第二资源所在的子 帧的序号相同; 所述在第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
参见图 3 , 本实施例包括:
步骤 31 : Pico基站在预定子帧的 PDCCH的 CSS和 USS对应的物理资 源中发送第一下行控制信息, 所述第一下行控制信息用于调度 Pico小区中的 SIB1 ,以及在预定子帧的 PDSCH中发送该第一下行控制信息调度的所述 Pico 小区中的 SIB1。
其中, 该第一下行控制信息对应的 CRC使用 SI-RNTI加扰。
参见图 4, 宏小区在预定子帧的 CSS对应的物理资源中发送第二调度信 息, 该第二下行控制信息用于调度 Macro小区中的 SIB1 , 该第二下行控制信 息指示包含 Macro小区中的 SIB1的 PDSCH; 但是, 在微(Pico ) 小区中, 不仅在 CSS对应的物理资源中发送第一下行控制信息,还要在 USS对应的物 理资源中发送该第一调度信息, 该第一下行控制信息指示包含 Pico小区中的 SIB1的 PDSCH。 为了简洁, 图 4中的 CSS对应的物理资源和 USS对应的物 理资源是分开的, 可以理解的是, CSS对应的物理资源和 USS对应的物理资 源也可以是部分重叠的, 另外, Macro小区的 PDCCH中的 CSS对应的物理 资源和 Pico小区的 PDCCH中的 CSS对应的物理资源也可能是部分重叠。
步骤 32: Pico基站服务的 UE在 CSS对应的物理资源和 USS对应的物 理资源中检测该第一下行控制信息,并根据该第一下行控制信息获取 PDSCH 中的该 Pico小区中的 SIB1。
其中, 本实施例以 Pico基站服务的 UE在 CSS对应的物理资源和 USS 对应的物理资源上均进行检测为例。可选的,如果 Pico基站服务的 UE在 CSS 对应的物理资源上可以检测到该调度信息, 那么也可以不再在 USS对应的物 理资源上检测。
以在预定子帧的 PDCCH的 CSS对应的物理资源以及被保护资源上均进 行检测为例, 具体的, UE可以釆用表 2进行 PDCCH和 PDSCH的检测。 与 现有技术不同的是, 本实施例的搜索空间不仅包括 CSS, 还包括 USS。
表 2
Figure imgf000024_0001
根据表 2, UE可以先根据不同的 DCI格式进行译码, 然后釆用 SI-RNTI 进行解扰和 CRC校验, 进而获取正确的 DCI, 之后可以根据该正确的 DCI 的指示获取 PDSCH中的 SIB1消息。
类似的,对于寻呼消息,也可以釆用表 2进行 PDCCH和 PDSCH的检测。 与 SIB消息不同的是, 寻呼消息釆用 P-RNTI进行解扰。 本实施例通过将调度信息包含在 USS对应的物理资源中的资源中, 通过 选择 USS对应的物理资源中被干扰较小的资源发送第一下行控制信息, 其受 到的干扰比 CSS对应的干扰小,可以降低干扰,保证 UE对 DCI的正确解调。
图 5 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图, 图 6为图 5对应的信道结构示意图。 本实施例以被保护资源为预定子帧 中 PDCCH的扩展 CSS对应的物理资源为例。
在 PDCCH上, 承载 DCI的基本单元是控制信道单元( Control Channel Element, CCE ), 每个 PDCCH由 1、 2、 4或 8个 CCE组成。 现有协议中规 定 CSS是由序号为 0〜15的这 16个 CCE组成的。 本实施例中对 CSS进行扩 展, 例如, 将序号为 16〜23的 CCE称为扩展 CCE。
本实施例中, 被干扰小区的服务节点在第一资源和第二资源上均发送第 一下行控制信息; 且, 所述第一资源所在的子帧的序号与第二资源所在的子 帧的序号相同; 所述在第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
参见图 5, 本实施例包括:
步骤 51 : Pico基站在预定子帧的 PDCCH的 CSS和扩展 CSS对应的物理 资源中发送第一下行控制信息, 所述第一下行控制信息用于调度 Pico小区中 的 SIB1 , 以及在预定子帧的 PDSCH中发送该第一下行控制信息调度的所述 Pico小区中的 SIB1。
其中, 该第一下行控制信息对应的 CRC使用 SI-RNTI加扰。
参见图 6, 宏小区在预定子帧的 CSS对应的物理资源中发送第二调度信 息, 该第二下行控制信息用于调度 Macro小区中的 SIB1 , 该第二下行控制信 息指示包含 Macro小区中的 SIB1的 PDSCH; 但是, 在微(Pico ) 小区中, 不仅在 CSS对应的物理资源中发送第一下行控制信息,还要在扩展 CSS对应 的物理资源中发送该第一下行控制信息, 该第一下行控制信息指示包含 Pico 小区中的 SIB1的 PDSCH。 为了简洁, 图 6中的各种物理资源是分开的, 可 以理解的是, Macro小区的 PDCCH中的 CSS对应的物理资源和 Pico小区 的 PDCCH 中的 CSS 对应的物理资源可能是部分重叠的, Macro 小区的 PDCCH中的 CSS对应的物理资源和 Pico小区的 PDCCH中的扩展 CSS对应 的物理资源也可能是部分重叠的。
步骤 52: Pico基站服务的 UE在 CSS对应的物理资源和扩展 CSS对应的 物理资源中检测该第一下行控制信息, 并根据该第一下行控制信息获取 PDSCH中的该 Pico小区中的 SIB 1。
类似的, 上述发送的用于调度 SIB1的调度信息是用 SI-RNTI加扰的, 因 此, UE需要釆用 SI-RNTI进行解扰。
其中, 本实施例以 Pico基站服务的 UE在 CSS对应的物理资源和扩展 CSS对应的物理资源上均进行检测为例。 可选的, 如果 Pico基站服务的 UE 在 CSS对应的物理资源上可以检测到该调度信息, 那么也可以不再在扩展的 CSS对应的物理资源上检测。
以在预定子帧的 PDCCH的 CSS对应的物理资源以及被保护资源上均进 行检测为例, 与现有技术不同的, 本实施例不仅需要在 CSS中搜索, 还需要 在扩展 CSS中搜索, 如表 3所示。
表 3
Figure imgf000026_0001
类似的, 对于寻呼消息, UE也可以釆用表 3进行 PDCCH和 PDSCH的 检测。 与 SIB不同的是, 寻呼消息釆用 P-RNTI进行解扰。
本实施例通过将调度信息包含在扩展 CSS对应的物理资源中, 通过选择 扩展 CSS对应的物理资源中被干扰较小的资源发送第一下行控制信息, 其受 到的干扰比 CSS对应的干扰小,可以降低干扰,保证 UE对 DCI的正确解调。 另外, 本实施例通过对 CSS进行扩展, 可以针对所有 UE只发送一次调度信 息, 不需要针对每个受干扰 UE都发送一次调度信息, 可以降低开销。
上述两个实施例以调度信息携带在 PDCCH 中为例, 此外, 上述的调度 信息也可以携带在 E-PDCCH中。 E-PDCCH的具体描述如下: 由于每个用户的上 /下行数据调度都需要通过 PDCCH指示,因此 PDCCH 区域的容量直接限制了小区同时调度用户的容量。
为了提供更高的频谱效率和小区边缘用户性能, LTE 演进版本 Release 11 ( Rel.ll ) 系统中, 引入了更加先进的技术使得小区同时服务的用户数显著 增加。 这样, LTE中最大 3个 OFDM符号的 PDCCH区域无法满足 Rel.ll的 需求, 需要定义新的 PDCCH 资源, 即增强的 PDCCH ( E-PDCCH: Enhanced-PDCCH ) 区域, 用于传输更多的 R11 用户的数据调度信息以及用 于解决 PDCCH在干扰场景下的干扰问题。 在 LTE Rel.ll系统, Rel.ll用户 的控制信道可以位于前几个 OFDM符号的 PDCCH 区域内, 也可以位于 E-PDCCH区域内。 E-PDCCH区域使用原 PDSCH区域的部分时频资源, 与 PDSCH可以釆用频分复用 (FDM )或其他形式,
图 7 为本发明下行控制信息的发送及接收方法另一实施例的流程示意 图, 图 8为图 7对应的信道结构示意图。 本实施例以被保护资源为 E-PDCCH 为例。
本实施例中, 被干扰小区的服务节点在第一资源和第二资源上均发送第 一下行控制信息; 且, 所述第一资源所在的子帧的序号与第二资源所在的子 帧的序号相同; 所述在第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
参见图 7, 本实施例包括:
步骤 71 : Pico基站在预定子帧的 PDCCH的 CSS对应的物理资源以及 E-PDCCH占用的物理资源中发送第一下行控制信息,所述第一下行控制信息 用于调度 Pico小区中的 SIB1 , 以及在预定子帧的 PDSCH中发送该第一下行 控制信息调度的所述 Pico小区中的 SIB1。
其中, 该第一下行控制信息对应的 CRC使用 SI-RITN加扰。
参见图 8, 宏小区在预定子帧的 PDCCH 的 CSS对应的物理资源中发送 第二下行控制信息, 该第二下行控制信息用于调度 Macro小区中的 SIB1 , 该 第二下行控制信息指示包含 Macro 小区中的 SIB1 的 PDSCH; 但是, 在微 ( Pico ) 小区中, 不仅在 PDCCH的 CSS对应的物理资源中发送第一下行控 制信息, 还要在 E-PDCCH 占用的物理资源中发送该第一下行控制信息, 该 第一下行控制信息指示包含 Pico小区中的 SIB1的 PDSCH。
具体的, 第一下行控制信息可以在该 E-PDCCH的 CSS对应的物理资源 或者该 E-PDCCH的 USS对应的物理资源中发送。
步骤 72: Pico基站良务的 UE在 PDCCH 的 CSS 对应的物理资源和 E-PDCCH占用的物理资源中检测该第一下行控制信息,并根据该第一下行控 制信息获取 PDSCH中的该 Pico小区中的 SIB1。
以在预定子帧的 PDCCH的 CSS对应的物理资源以及被保护资源上均进 行检测为例, 具体的, 如果规定釆用 E-PDCCH的 CSS对应的物理资源传输 第一下行控制信息, 则 UE在 PDCCH的 CSS对应的物理资源和 E-PDCCH 的 CSS对应的物理资源进行搜索; 或者, 如果规定釆用 E-PDCCH的 USS对 应的物理资源传输第一下行控制信息, 则 UE在 PDCCH的 CSS对应的物理 资源和 E-PDCCH的 USS对应的物理资源进行搜索。
即, UE在解调时, 可以釆用表 4进行。
表 4
Figure imgf000028_0001
其中, 本实施例以 Pico 基站良务的 UE 在 CSS 对应的物理资源和 E-PDCCH 占用的物理资源上均进行检测为例。 可选的, 如果 Pico基站良务 的 UE在 CSS对应的物理资源上可以检测到该调度信息, 那么也可以不再在 E-PDCCH占用的物理资源上检测。
本实施例通过将调度信息包含在 E-PDCCH 中, 由于宏小区可以在 E-PDCCH对应的资源上降低发射功率, 因此可以使得 E-PDCCH受到的干扰 比 PDCCH的 CSS中的干扰小,可以降低干扰,保证 UE对 DCI的正确解调。 上述实施例以调度信息携带在预定子帧中为例, 该调度信息也可以携带 在其余的子帧中。 例如, 对于 SIB1消息, 预定子帧为 5号子帧, 而本发明实 施例还可以规定在其余子帧, 如 4号子帧中再携带调度信息。
图 9为本发明下行控制信息的发送及接收方法另一实施例的方法流程示 意图, 图 10为图 9对应的信道结构示意图。 本实施例以被保护资源为非预定 子帧为例, 且本实施例中非预定子帧中的调度信息与预定子帧中的调度信息 指示相同的 PDSCH。
本实施例中, 所述第一资源所在的子帧的序号与第二资源所在的子帧的 序号不同;
所述在第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的 子帧的序号与所述第二资源所在的子帧的序号相同, 并且所述第一资源上发 送的所述第一下行控制信息对应的 PDSCH 所在的子帧的序号与在所述第二 资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序号相同。 可选的, 也可以是: 所述在第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且所述 第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧的序号 与在所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子 帧的序号相同。
参见图 9, 本实施例包括:
步骤 91 : Pico基站在预定子帧的 PDCCH的 CSS对应的物理资源以及非 预定子帧的被保护资源中发送第一下行控制信息, 该第一下行控制信息用于 调度 Pico小区中的 SIB1的调度信息,以及在预定子帧的 PDSCH中发送该第 一下行控制信息调度的所述 Pico小区中的 SIB1。
其中, 该第一下行控制信息对应的 CRC使用 SI-RITN加扰。
参见图 10,宏小区在预定子帧的 CSS对应的物理资源中发送第二下行控 制信息, 该第二下行控制信息用于调度 Macro小区中的 SIB1 , 该第二下行控 制信息指示包含 Macro小区中的 SIB1的 PDSCH; 但是, 在微(Pico ) 小区 中, 不仅在预定子帧中发送第一下行控制信息, 还要在非预定子帧中发送该 第一下行控制信息, 该第一下行控制信息也指示该预定子帧的包含 Pico小区 的 SIB1的 PDSCH。 具体的, 上述的非预定子帧中被保护资源可以是: 非预定子帧的 PDCCH 的 USS对应的物理资源,非预定子帧的 PDCCH的扩展 CSS对应的物理资源、 非预定子帧的 E-PDCCH 的 USS 对应的物理资源或者在非预定子帧的 E-PDCCH的 CSS对应的物理资源。
步骤 92: Pico基站服务的 UE在预定子帧的 PDCCH的 CSS对应的物理 资源和非预定子帧的被保护资源中检测该第一下行控制信息, 并根据该第一 下行控制信息获取 PDSCH中的该 Pico小区中的 SIB1消息。
类似上述实施例, UE用 SI-RNTI在搜索空间内解扰接收的 DCI, 并根据 DCI的指示解调 PDSCH。以在预定子帧的 PDCCH的 CSS对应的物理资源以 及被保护资源上均进行检测为例, 与上述实施例不同的是, 本实施例的搜索 空间除了包括预定子帧的 PDCCH的 CSS之外, 还包括非预定子帧的被保护 资源。 当然, 要检测的非预定子帧也可以预先规定, 例如规定还需要在 4号 子帧上检测, 以及被保护资源也可以预先规定, 例如 4号子帧上的 PDCCH 的 USS。
其中, 本实施例以 Pico基站服务的 UE在预定子帧和非预定子帧上均进 行检测为例。 可选的, 如果 Pico基站服务的 UE在预定子帧上可以检测到该 调度信息, 那么也可以不再在非预定子帧上检测。
本实施例通过将调度信息包含在非预定子帧中, 通过选择被干扰较小的 非预定子帧发送第一下行控制信息, 其受到的干扰比预定子帧的 PDCCH的 CSS对应的干扰小, 可以降低干扰, 保证 UE对 DCI的正确解调。
图 11 为本发明下行控制信息的发送及接收方法另一实施例的方法流程 示意图, 图 12为图 11对应的信道结构示意图。 本实施例以被保护资源为非 预定子帧为例, 且本实施例中非预定子帧中的调度信息与预定子帧中的调度 信息指示不同的 PDSCH。
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同; 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
参见图 11 , 本实施例包括: 步骤 111 : Pico基站在预定子帧的 PDCCH的 CSS对应的物理资源以及 非预定子帧的被保护资源中发送第一下行控制信息, 该第一下行控制信息用 于调度 Pico小区中的 SIB1消息的调度信息, 以及在分别预定子帧的 PDSCH 和非预定子帧的 PDSCH中发送该第一下行控制信息调度的所述 Pico小区中 的 SIB1。
其中, 该第一下行控制信息对应的 CRC使用 SI-RITN加扰。
参见图 12,宏小区在预定子帧的 CSS对应的物理资源中发送第二下行控 制信息, 该第二下行控制信息用于调度 Macro小区中的 SIB1 , 该第二下行控 制信息指示包含 Macro小区中的 SIB1的 PDSCH; 但是, 在微(Pico ) 小区 中, 不仅在预定子帧中发送第一下行控制信息, 还要在非预定子帧中发送该 第一下行控制信息, 非预定子帧中该第一下行控制信息指示的 PDSCH 与预 定子帧的第一下行控制信息指示的 PDSCH不同。
具体的, 上述的非预定子帧中被保护资源可以是: 非预定子帧的 PDCCH 的 USS对应的物理资源,非预定子帧的 PDCCH的扩展 CSS对应的物理资源、 非预定子帧的 E-PDCCH 的 USS 对应的物理资源或者在非预定子帧的 E-PDCCH的 CSS对应的物理资源。
步骤 112: Pico基站服务的 UE在预定子帧的 PDCCH的 CSS对应的物理 资源和非预定子帧的被保护资源中检测该第一下行控制信息, 并根据该第一 下行控制信息获取 PDSCH中的该 Pico小区中的 SIB1。
其中, 本实施例以 Pico基站服务的 UE在预定子帧和非预定子帧上均进 行检测为例。 可选的, 如果 Pico基站服务的 UE在预定子帧上可以检测到该 调度信息, 那么也可以不再在非预定子帧上检测。
特别地, UE可能在非预定的子帧上检测到第一下行控制信息和第三下行 控制信息,所述第三下行控制信息指的是用于调度所述被干扰小区的 SIB1以 外的系统广播消息(如 SIB2、 SIB3等)或 MIB的调度信息。 由于第一下行 控制信息和第三下行控制信息都是用 SI-RNTI加扰的信息。 UE无法区分第一 下行控制信息调度的系统广播消息和第三下行控制信息调度的系统广播消 息。 此时可以在第一下行控制信息所指示的 PDSCH 的信息中指示当前 PDSCH是 SIB1 ,或者在第三下行控制信息所指示的 PDSCH的信息中指示当 前 PDSCH是 SIB1消息以外的系统广播消息或 MIB。 或者不做规定, UE根 据接收到的下行控制信息指示的 PDSCH所在的子帧判断当前 PDSCH中的信 息是 SIB1消息还是 SIB1消息以外的系统广播消息或 MIB。
也就是, 可选的, 当所述第一资源所在的子帧的序号与第二资源所在的 子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务 节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
在所述第一下行控制信息对应的 PDSCH 中发送的数据包括第一指示信 息, 所述第一指示信息用于指示在所述第一下行控制信息对应的 PDSCH 中 发送的数据包含所述 SIB1 ; 或,
在所述第一下行控制信息对应的 PDSCH所在的子帧的子帧号用于标识 在所述第一下行控制信息对应的 PDSCH中发送的数据包含所述 SIB1。
或者,
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的 PDSCH发送的 SIB1时, 所述方法还包括:
被干扰小区的服务节点发送第三下行控制信息, 所述第三下行控制信息 包括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
本实施例通过将调度信息包含在非预定子帧中, 通过选择被干扰较小的 非预定子帧发送第一下行控制信息, 其受到的干扰比预定子帧的 PDCCH的 CSS对应的干扰小, 可以降低干扰, 保证 UE对 DCI的正确解调。
图 13为本发明服务节点一实施例的结构示意图, 包括确定模块 131和第 一发送模块 132; 确定模块 131用于确定第一资源, 所述第一资源位于如下项中的至少一 项中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
第一发送模块 132用于根据所述确定模块确定的所述第一资源的信息, 并在所述第一资源上, 发送被干扰小区的第一下行控制信息, 所述第一下行 控制信息包括用于调度所述被干扰小区的服务节点发送的寻呼消息和 /或系 统消息块 SIB1的调度信息, 所述寻呼消息和 /或 SIB1由所述被干扰小区的服 务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
可选的, 该节点还包括:
第二发送模块, 用于在第二资源上发送所述第一下行控制信息; 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信 可选的,
所述第一发送模块釆用的所述第一资源所在的子帧的序号与所述第二发 送模块釆用的所述第二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
可选的, 所述第一发送模块釆用的所述第一资源所在的子帧的序号与所 述第二发送模块釆用的所述第二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或, 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 中发 送的数据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控 制信息对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 所在 的子帧的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的 数据包含所述 SIB1。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述节点还包括: 第三发送模块, 用于发送第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
可选的, 被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节 点为高功率服务节点。
可选的, 所述将 PDCCH的 CSS扩展后得到的扩展出的物理资源, 包括: 将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
本实施例中, 由于被干扰小区的调度信息在第一资源上发送的, 可以尽 量降低干扰小区引起的干扰, 保证被干扰小区的 UE正确解调下行控制信息。
图 14为本发明用户设备一实施例的结构示意图,该设备包括第一接收模 块 141和第一获取模块 142;
第一接收模块 141用于在第一资源上, 接收被干扰小区的服务节点发送 的第一下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行 控制信道 PDCCH的用户专用搜索空间 USS对应的物理资源、 将 PDCCH的 公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的物理下行控制 信道 E-PDCCH的 USS对应的物理资源, 和, E-PDCCH的 CSS对应的物理 资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发 送的寻呼消息和 /或系统消息块 SIB1的调度信息;
第一获取模块 142用于接收所述第一接收模块发送的所述第一下行控制 信息, 根据所述第一下行控制信息, 获取所述第一下行控制信息指示的物理 下行共享信道 PDSCH中的数据,所述 PDSCH中的数据包括所述寻呼消息和 /或 SIB1。
可选的, 该设备还包括:
第二接收模块, 用于接收所述服务节点在第二资源上发送的所述第一下 行控制信息, 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二 下行控制信息的资源 , 所述第二下行控制信息包括用于调度干扰小区的服务 节点在干扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息 的调度信息。
可选的, 所述第一资源所在的子帧的序号与所述第二资源所在的子帧的 序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
可选的,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号不 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
所述第一获取模块获取的所述 PDSCH 中的数据还包括第一指示信息, 所述第一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者, 所述第一获取模块获取的所述 PDSCH 所在的子帧的子帧号用于标识在 所述第一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被干扰小区 的物理下行共享信道 PDSCH发送的 SIB1时, 所述设备还包括:
第三接收模块, 用于接收第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送; 在所述第三下行控制信息对应的 PDSCH中发送的数据包括第二指示信息,所述第二指示信息用于指示在所述 第三下行控制信息对应的 PDSCH中发送的数据包含所述除了主信息块 MIB 以及 SIB1以外的系统广播消息;或者,所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第三下行控制信息对应的 PDSCH 中发送的数 据包含除了主信息块 MIB以及 SIB1以外的系统广播消息。
可选的, 被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节 点为高功率服务节点。
可选的, 所述将 PDCCH的 CSS扩展后得到的扩展出的物理资源, 包括: 将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
本实施例中, 由于被干扰小区的调度信息在第一资源上发送的, 可以尽 量降低干扰小区引起的干扰, 保证被干扰小区的 UE正确解调下行控制信息。
图 15为本发明服务节点另一实施例的结构示意图, 包括处理器 151和发 送器 152;
处理器 151用于
确定第一资源, 所述第一资源位于如下项中的至少一项中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
发送器 152用于在所述第一资源上, 发送被干扰小区的第一下行控制信 息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点发送的 寻呼消息和 /或系统消息块 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述 被干扰小区的服务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。 可选的, 所述发送器还用于:
在第二资源上发送所述第一下行控制信息;
所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信 息。
可选的, 所述第一资源所在的子帧的序号与所述第二资源所在的子帧的 序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
可选的, 所述第一资源所在的子帧的序号与所述第二资源所在的子帧的 序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
在所述发送器发送的所述第一下行控制信息对应的 PDSCH 中发送的数 据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控制信息 对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述发送器发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的数据包 含所述 SIB1。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述发送器还用于: 发送第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
可选的, 被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节 点为高功率服务节点。
可选的, 所述将 PDCCH的 CSS扩展后得到的扩展出的物理资源, 包括: 将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
本实施例中, 由于被干扰小区的调度信息在第一资源上发送的, 可以尽 量降低干扰小区引起的干扰, 保证被干扰小区的 UE正确解调下行控制信息。
图 16为本发明用户设备另一实施例的结构示意图, 包括接收器 161和处 理器 162;
接收器 161用于在第一资源上, 接收被干扰小区的服务节点发送的第一 下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行控制信 道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜 索空间 CSS 进行扩展得到的扩展出的物理资源、 增强的物理下行控制信道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物理资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发送的寻 呼消息和 /或系统消息块 SIB1的调度信息;
处理器 162用于根据所述第一下行控制信息, 获取所述第一下行控制信 息指示的物理下行共享信道 PDSCH中的数据,所述 PDSCH中的数据包括所 述寻呼消息和 /或 SIB1。
可选的, 所述接收器还用于:
接收所述服务节点在第二资源上发送的所述第一下行控制信息, 所述第 二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制信息的资 源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干扰小区的 物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
可选的, 所述第一资源所在的子帧的序号与第二资源所在的子帧的序号 相同;
所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
可选的, 所述第一资源所在的子帧的序号与第二资源所在的子帧的序号 不同;
所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
可选的, 所述第一资源所在的子帧的序号与第二资源所在的子帧的序号 相同;
所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。。
可选的, 所述第一资源所在的子帧的序号与第二资源所在的子帧的序号 不同;
所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。 可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
所述处理器得到的所述 PDSCH 中的数据还包括第一指示信息, 所述第 一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者,
所述处理器得到的所述 PDSCH所在的子帧的子帧号用于标识在所述第 一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。
可选的, 当所述第一资源所在的子帧的序号与第二资源所在的子帧的序 号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被 干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述接收器还用于: 接收第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
可选的, 被干扰小区的服务节点为低功率服务节点; 干扰小区的服务节 点为高功率服务节点。
可选的, 所述将 PDCCH的 CSS扩展后得到的扩展出的物理资源, 包括: 将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
本实施例中, 由于被干扰小区的调度信息在第一资源上发送的, 可以尽 量降低干扰小区引起的干扰, 保证被干扰小区的 UE正确解调下行控制信息。
图 13或 15所示的服务节点可以是具体执行上述被干扰 UE的服务节点 的功能的设备, 图 13、 15中的各模块的功能可以具体参见上述方法实施例中 对被干扰 UE的服务节点的相应描述。 图 14或 16所示的用户设备可以是具 体执行上述被干扰 UE的功能的设备, 图 14、 16中的各模块的功能可以具体 参见上述方法实施例中对被干扰 UE的相应描述。
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的步骤; 而 前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码 的介质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求
1、 一种下行控制信息的发送方法, 其特征在于, 包括:
被干扰小区的服务节点确定第一资源, 所述第一资源位于如下项中的至 少一项中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
所述服务节点在所述第一资源上,发送被干扰小区的第一下行控制信息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点发送的寻呼 消息和 /或系统消息块 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述被干 扰小区的服务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
所述被干扰小区的服务节点在第二资源上发送所述第一下行控制信息; 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信
3、 根据权利要求 2所述的方法, 其特征在于, 所述第一资源所在的子帧 的序号与第二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
4、 根据权利要求 2所述的方法, 其特征在于, 所述第一资源所在的子帧 的序号与第二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或, 所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
5、 根据权利要求 2或 4所述的方法, 其特征在于, 当所述第一资源所在 的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制信息 用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
在所述第一下行控制信息对应的 PDSCH 中发送的数据包括第一指示信 息, 所述第一指示信息用于指示在所述第一下行控制信息对应的 PDSCH 中 发送的数据包含所述 SIB1 ; 或,
在所述第一下行控制信息对应的 PDSCH所在的子帧的子帧号用于标识 在所述第一下行控制信息对应的 PDSCH中发送的数据包含所述 SIB1。
6、 根据权利要求 2、 4或 5所述的方法, 其特征在于, 当所述第一资源 所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制 信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时, 所述方法还包括:
被干扰小区的服务节点发送第三下行控制信息, 所述第三下行控制信息 包括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
7、 根据权利要求 1-6任一权利要求所述的方法, 其特征在于,
被干扰小区的服务节点为低功率服务节点;
干扰小区的服务节点为高功率服务节点。
8、 根据权利要求 1-7任一权利要求所述的方法, 其特征在于, 所述将 PDCCH的 CSS扩展后得到的扩展出的物理资源, 包括:
将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
9、 一种下行控制信息的接收方法, 其特征在于, 包括:
被干扰小区的用户设备 UE在第一资源上, 接收被干扰小区的服务节点 发送的第一下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理 下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、将 PDCCH 的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的物理下行控 制信道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物 理资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点 发送的寻呼消息和 /或系统消息块 SIB1的调度信息;
所述 UE根据所述第一下行控制信息, 获取所述第一下行控制信息指示 的物理下行共享信道 PDSCH中的数据,所述 PDSCH中的数据包括所述寻呼 消息和 /或 SIB1。
10、 根据权利要求 9所述的方法, 其特征在于, 还包括:
所述 UE接收所述服务节点在第二资源上发送的所述第一下行控制信息, 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制信息 的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干扰小 区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
11、 根据权利要求 10所述的方法, 其特征在于, 所述第一资源所在的子 帧的序号与第二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
12、 根据权利要求 10所述的方法, 其特征在于, 所述第一资源所在的子 帧的序号与第二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
13、 根据权利要求 10或 12所述的方法, 其特征在于, 当所述第一资源 所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制 信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
所述 PDSCH 中的数据还包括第一指示信息, 所述第一指示信息用于指 示在所述 PDSCH中的数据包含所述 SIB1 ; 或者,
所述 PDSCH 所在的子帧的子帧号用于标识在所述第一下行控制信息对 应的 PDSCH中的数据包含所述 SIB1。
14、 根据权利要求 10、 12或 13所述的方法, 其特征在于, 当所述第一 资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行 控制信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享 信道 PDSCH发送的 SIBl时, 所述方法还包括:
所述 UE接收第三下行控制信息, 所述第三下行控制信息包括用于调度 除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主 信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的服务节点在 被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
15、 根据权利要求 9-14任一项所述的方法, 其特征在于,
被干扰小区的服务节点为低功率服务节点;
干扰小区的服务节点为高功率服务节点。
16、根据权利要求 9-15任一项所述的方法,其特征在于,所述将 PDCCH 的 CSS扩展后得到的扩展出的物理资源, 包括:
将由序号为 0至 15的控制信道单元 CCE组成的 CSS进行扩展, 得到扩 展出的属于 CSS的序号大于或等于 16的 CCE。
17、 一种服务节点, 其特征在于, 包括:
确定模块, 用于确定第一资源, 所述第一资源位于如下项中的至少一项 中:
物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
第一发送模块, 用于根据所述确定模块确定的所述第一资源的信息, 并 在所述第一资源上, 发送被干扰小区的第一下行控制信息, 所述第一下行控 制信息包括用于调度所述被干扰小区的服务节点发送的寻呼消息和 /或系统 消息块 SIB1的调度信息, 所述寻呼消息和 /或 SIB1由所述被干扰小区的服务 节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
18、 根据权利要求 17所述的节点, 其特征在于, 还包括: 第二发送模块, 用于在第二资源上发送所述第一下行控制信息; 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制 信息的资源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干 扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信
19、 根据权利要求 18所述的节点, 其特征在于, 所述第一资源所在的子 帧的序号与所述第二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
20、 根据权利要求 18所述的节点, 其特征在于, 所述第一资源所在的子 帧的序号与所述第二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
21、 根据权利要求 18或 20所述的节点, 其特征在于, 当所述第一资源 所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制 信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道
PDSCH发送的 SIB1时,
在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 中发 送的数据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控 制信息对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述第一发送模块发送的所述第一下行控制信息对应的 PDSCH 所在 的子帧的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的 数据包含所述 SIB1。
22、 根据权利要求 18、 20或 21所述的节点, 其特征在于, 当所述第一 资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行 控制信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享 信道 PDSCH发送的 SIB1时, 所述节点还包括:
第三发送模块, 用于发送第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者,
所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
23、 一种用户设备, 其特征在于, 包括:
第一接收模块, 用于在第一资源上, 接收被干扰小区的服务节点发送的 第一下行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行控 制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公 共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的物理下行控制信 道 E-PDCCH的 USS包括的物理资源, 和, E-PDCCH的 CSS包括的物理资 源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发送 的寻呼消息和 /或系统消息块 SIB1的调度信息;
第一获取模块, 用于根据所述第一接收模块接收的所述第一下行控制信 息, 根据所述第一下行控制信息, 获取所述第一下行控制信息指示的物理下 行共享信道 PDSCH中的数据, 所述 PDSCH中的数据包括所述寻呼消息和 / 或 SIB1。
24、 根据权利要求 23所述的设备, 其特征在于, 还包括:
第二接收模块, 用于接收所述服务节点在第二资源上发送的所述第一下 行控制信息, 所述第二资源为干扰小区的服务节点在干扰小区用于发送第二 下行控制信息的资源 , 所述第二下行控制信息包括用于调度干扰小区的服务 节点在干扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息 的调度信息。
25、 根据权利要求 24所述的设备, 其特征在于,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号相 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
26、 根据权利要求 24所述的设备, 其特征在于,
所述第一资源所在的子帧的序号与所述第二资源所在的子帧的序号不 同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或, 所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
27、 根据权利要求 24或 26所述的设备, 其特征在于, 当所述第一资源 所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制 信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
所述第一获取模块获取的所述 PDSCH 中的数据还包括第一指示信息, 所述第一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者, 所述第一获取模块获取的所述 PDSCH 所在的子帧的子帧号用于标识在 所述第一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。
28、 根据权利要求 24、 26或 27所述的设备, 其特征在于, 当所述第一 资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行 控制信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享 信道 PDSCH发送的 SIB1时, 所述设备还包括:
第三接收模块, 用于接收第三下行控制信息, 所述第三下行控制信息包 括用于调度除了主信息块 MIB以及 SIB1以外的系统广播消息的调度信息, 所述除了主信息块 MIB以及 SIB1以外的系统广播消息由所述被干扰小区的 服务节点在被干扰小区的 PDSCH发送; 在所述第三下行控制信息对应的 PDSCH中发送的数据包括第二指示信息,所述第二指示信息用于指示在所述 第三下行控制信息对应的 PDSCH中发送的数据包含所述除了主信息块 MIB 以及 SIB1以外的系统广播消息;或者,所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第三下行控制信息对应的 PDSCH 中发送的数 据包含除了主信息块 MIB以及 SIB1以外的系统广播消息。
29、 一种服务节点, 其特征在于, 包括:
处理器, 用于确定第一资源, 所述第一资源位于如下项中的至少一项中: 物理下行控制信道 PDCCH的用户专用搜索空间 USS包括的物理资源、 将 PDCCH的公共搜索空间 CSS进行扩展得到的扩展出的物理资源、 增强的 物理下行控制信道 E-PDCCH的 USS包括的物理资源,和, E-PDCCH的 CSS 包括的物理资源;
发送器, 用于在所述第一资源上, 发送被干扰小区的第一下行控制信息, 所述第一下行控制信息包括用于调度所述被干扰小区的服务节点发送的寻呼 消息和 /或系统消息块 SIB1的调度信息,所述寻呼消息和 /或 SIB1由所述被干 扰小区的服务节点在所述被干扰小区的物理下行共享信道 PDSCH发送。
30、 根据权利要求 29所述的节点, 其特征在于, 所述发送器还用于: 在第二资源上发送所述第一下行控制信息; 所述第二资源为干扰小区的 服务节点在干扰小区用于发送第二下行控制信息的资源, 所述第二下行控制 信息包括用于调度干扰小区的服务节点在干扰小区的物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
31、 根据权利要求 30所述的节点, 其特征在于,
所述处理器确定的所述第一资源所在的子帧的序号与所述发送器釆用的 第二资源所在的子帧的序号相同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同。
32、 根据权利要求 30所述的节点, 其特征在于,
所述处理器确定的所述第一资源所在的子帧的序号与所述发送器釆用的 第二资源所在的子帧的序号不同;
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 在所述第二资源上发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的序号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或, 所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。
33、 根据权利要求 30或 32所述的节点, 其特征在于,
当所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制信息用于调度所述被干扰小区的服务节点在被干扰小区 的物理下行共享信道 PDSCH发送的 SIB1时,
在所述发送器发送的所述第一下行控制信息对应的 PDSCH 中发送的数 据包括第一指示信息, 所述第一指示信息用于指示在所述第一下行控制信息 对应的 PDSCH中发送的数据包含所述 SIB1 ; 或,
在所述发送器发送的所述第一下行控制信息对应的 PDSCH 所在的子帧 的子帧号用于标识在所述第一下行控制信息对应的 PDSCH 中发送的数据包 含所述 SIB1。
34、 根据权利要求 30、 32或 33所述的节点, 其特征在于, 当所述第一 资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行 控制信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享 信道 PDSCH发送的 SIB1时, 所述发送器还用于:
发送第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
35、 一种用户设备, 其特征在于, 包括: 接收器, 用于在第一资源上, 接收被干扰小区的服务节点发送的第一下 行控制信息, 所述第一资源位于如下项中的至少一项中: 物理下行控制信道
PDCCH的用户专用搜索空间 USS对应的物理资源、 将 PDCCH的公共搜索 空间 CSS 进行扩展得到的扩展出的物理资源、 增强的物理下行控制信道 E-PDCCH的 USS对应的物理资源, 和, E-PDCCH的 CSS对应的物理资源; 所述第一下行控制信息包括: 用于调度所述被干扰小区的服务节点发送的寻 呼消息和 /或系统消息块 SIB1的调度信息;
处理器, 用于根据所述接收器接收的第一下行控制信息, 获取所述第一 下行控制信息指示的物理下行共享信道 PDSCH中的数据,所述 PDSCH中的 数据包括所述寻呼消息和 /或 SIB1。
36、 根据权利要求 35所述的设备, 其特征在于, 所述接收器还用于: 接收所述服务节点在第二资源上发送的所述第一下行控制信息, 所述第 二资源为干扰小区的服务节点在干扰小区用于发送第二下行控制信息的资 源, 所述第二下行控制信息包括用于调度干扰小区的服务节点在干扰小区的 物理下行共享信道 PDSCH发送的寻呼消息和 /或 SIB1消息的调度信息。
37、 根据权利要求 36所述的设备, 其特征在于,
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号相同; 所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同。
38、 根据权利要求 36所述的设备, 其特征在于,
所述第一资源所在的子帧的序号与第二资源所在的子帧的序号不同; 所述接收器接收的所述第一下行控制信息对应的物理下行共享信道 PDSCH所在的子帧的序号与所述第一资源所在的子帧的序号相同,并且在所 述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的序 号与所述第二资源所在的子帧的序号相同; 或,
所述在第一资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第一资源所在的子帧的序号相同, 并且 所述第二资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第一资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同; 或,
所述在第二资源上发送的所述第一下行控制信息对应的物理下行共享信 道 PDSCH 所在的子帧的序号与所述第二资源所在的子帧的序号相同, 并且 所述第一资源上发送的所述第一下行控制信息对应的 PDSCH所在的子帧的 序号与在所述第二资源上发送的所述第一下行控制信息对应的物理下行共享 信道 PDSCH所在的子帧的序号相同。。
39、 根据权利要求 36或 38所述的设备, 其特征在于, 当所述第一资源 所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行控制 信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享信道 PDSCH发送的 SIB1时,
所述处理器得到的所述 PDSCH 中的数据还包括第一指示信息, 所述第 一指示信息用于指示在所述 PDSCH中的数据包含所述 SIB1 ; 或者,
所述处理器得到的所述 PDSCH所在的子帧的子帧号用于标识在所述第 一下行控制信息对应的 PDSCH中的数据包含所述 SIB1。
40、 根据权利要求 36、 38或 39所述的设备, 其特征在于, 当所述第一 资源所在的子帧的序号与第二资源所在的子帧的序号不同, 且所述第一下行 控制信息用于调度所述被干扰小区的服务节点在被干扰小区的物理下行共享 信道 PDSCH发送的 SIB1时, 所述接收器还用于:
接收第三下行控制信息, 所述第三下行控制信息包括用于调度除了主信 息块 MIB以及 SIB1以外的系统广播消息的调度信息,所述除了主信息块 MIB 以及 SIB1 以外的系统广播消息由所述被干扰小区的服务节点在被干扰小区 的 PDSCH发送;
在所述第三下行控制信息对应的 PDSCH 中发送的数据包括第二指示信 息, 所述第二指示信息用于指示在所述第三下行控制信息对应的 PDSCH 中 发送的数据包含所述除了主信息块 MIB以及 SIB1 以外的系统广播消息; 或 者, 所述第三下行控制信息对应的 PDSCH 所在的子帧号用于标识在所述第 三下行控制信息对应的 PDSCH 中发送的数据包含除了主信息块 MIB 以及 SIB1以外的系统广播消息。
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WO2019214661A1 (zh) * 2018-05-11 2019-11-14 华为技术有限公司 传输寻呼消息的方法和装置
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