WO2012089171A1 - 一种对控制信道进行干扰处理的方法与装置 - Google Patents
一种对控制信道进行干扰处理的方法与装置 Download PDFInfo
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- WO2012089171A1 WO2012089171A1 PCT/CN2012/070321 CN2012070321W WO2012089171A1 WO 2012089171 A1 WO2012089171 A1 WO 2012089171A1 CN 2012070321 W CN2012070321 W CN 2012070321W WO 2012089171 A1 WO2012089171 A1 WO 2012089171A1
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- control channel
- base station
- indication
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- processing information
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- 230000005540 biological transmission Effects 0.000 claims abstract description 82
- 230000011664 signaling Effects 0.000 claims description 18
- 238000013507 mapping Methods 0.000 claims description 10
- 230000002452 interceptive effect Effects 0.000 abstract description 56
- 238000004891 communication Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 230000001629 suppression Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for performing interference processing on a control channel. Background technique
- the base station gives the user equipment UE (User) on the downlink.
- UE user equipment
- the Equipment transmits data and control information and receives data and control information of the UE on the uplink. Similarly, the UE transmits data and control information to the base station on the uplink and receives data and control information transmitted by the base station on the downlink.
- LTE Long Term Evolution
- LTE-A Long Term Evolution Advanced
- wireless communication system in order to improve system performance, it can pass through a macro base station in a homogeneous network.
- Micro eNodeB deploying low-power base stations or transmitting/receiving nodes (hereinafter referred to as low-power base stations) to enhance hotspot area coverage, indoor blind spot coverage, and macro base station cell edge coverage in the macro base station coverage area. And improve the average cell throughput, cell edge throughput, cell uplink / downlink spectrum utilization.
- the low power base station and the macro base station perform full or partial spectrum multiplexing.
- co-channel or co-channel interference occurs between the low-power base station and the macro base station, especially the interference between the control channels, which may affect the reliability of the system.
- Embodiments of the present invention provide a method and apparatus for performing interference processing on a control channel, which can effectively reduce interference of a control channel on an interfering cell to a channel transmission of an interfered cell.
- an embodiment of the present invention provides a method for performing interference processing on a control channel, including:
- the first base station generates control channel interference processing information, where the control channel interference processing information is used to indicate a physical resource used by the control channel transmission of the first base station;
- the first base station sends the control channel interference processing information to the second base station, so that the second base station performs interference processing on the control channel of the first base station according to the control channel interference processing information.
- an embodiment of the present invention provides a method for performing interference processing on a control channel, including:
- the second base station receives control channel interference processing information sent by the first base station, where the control channel interference processing information is used to indicate physical resources used by the control channel transmission of the first base station;
- the second base station performs interference processing on the control channel of the first base station according to the control channel interference processing information.
- an embodiment of the present invention provides a method for performing interference processing on a control channel, including:
- control channel interference processing information generated by the first base station, where the control channel interference processing information is used to indicate physical resources used by the control channel of the first base station;
- the user equipment suppresses or cancels interference of the user equipment by the control channel of the first base station according to the control channel interference processing information.
- an embodiment of the present invention provides a base station, including:
- a generating unit configured to generate control channel interference processing information, where the control channel interferes with processing information a physical resource used to indicate control channel transmission of the base station;
- a sending unit configured to send the control channel interference processing information to other base stations, so that the other base station performs interference processing on the control channel of the base station according to the control channel interference processing information.
- an embodiment of the present invention provides a base station, including:
- a receiving unit configured to receive control channel interference processing information sent by another base station, where the control channel interference processing information is used to indicate a physical resource used by the control channel transmission of the other base station; and a processing unit, configured to use, according to the control channel
- the interference processing information is subjected to interference processing on a control channel of the other base station.
- an embodiment of the present invention provides a user equipment, including:
- a receiving unit configured to receive, by the second base station, control channel interference processing information generated by the first base station, where the control channel interference processing information is used to indicate a physical resource used by the control channel of the first base station to transmit;
- a processing unit configured to suppress or cancel interference of the user equipment by the control channel of the first base station according to the control channel interference processing information.
- the first base station sends the control channel interference processing information to the second base station, so that the second base station can learn the physical occupation of the control channel transmission of the first base station.
- the resource performs effective interference processing on the control channel of the first base station.
- the interference of the interfering base station to the channel transmission of the interfered base station can be effectively reduced, and the reliability of the channel transmission of the interfered base station is improved.
- FIG. 1 is a flowchart of a method for performing interference processing on a control channel according to an embodiment of the present invention
- FIG. 2 is another flow chart of a method for performing interference processing on a control channel according to an embodiment of the present invention
- FIG. 3 is another flow chart of a method for performing interference processing on a control channel according to an embodiment of the present invention
- FIG. 4 is another flow chart of a method for performing interference processing on a control channel according to an embodiment of the present invention.
- FIG. 5 is another flow chart of a method for performing interference processing on a control channel according to an embodiment of the present invention.
- FIG. 6 is another flow chart of a method for performing interference processing on a control channel according to an embodiment of the present invention.
- FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention.
- FIG. 8 is another structural block diagram of a base station according to an embodiment of the present invention.
- FIG. 9 is a structural block diagram of a user equipment according to an embodiment of the present invention. detailed description
- the embodiment of the present invention is described by taking an LTE-A wireless communication system as an example, but the present invention is not limited thereto, and the embodiments of the present invention are equally applicable to other wireless communication systems.
- the concept of a base station is equivalent to a cell in this paper.
- the interference is generated between the first base station and the second base station, where the first base station and the second base station may be the same type of base station or different types of base stations, first.
- the base station may be a macro base station or a low power base station, and the second base station may also be a macro base station or a low power base station.
- the interference between the first base station and the second base station is mutual, that is, at a specific moment, the first base station may be the interfered base station interfered by the second base station, or may be the second pair.
- the interfering base station that the base station generates interference is mutual, that is, at a specific moment, the first base station may be the interfered base station interfered by the second base station, or may be the second pair.
- a method for performing interference processing on a control channel according to an embodiment of the present invention, based on a first base station includes:
- Step 101 The first base station generates control channel interference processing information, where the control channel interference processing information is used to indicate a physical resource used by the control channel transmission of the first base station;
- Step 102 The first base station sends the control channel interference processing information to the second base station, so that the second base station performs interference processing on the control channel of the first base station according to the control channel interference processing information.
- the second base station may determine, according to the control channel interference processing information, a physical resource used by the control channel transmission of the first base station, and perform interference processing on a control channel of the first base station.
- a method for performing interference processing on a control channel according to an embodiment of the present invention, based on the second base station includes:
- Step 201 The second base station receives the control channel interference processing information sent by the first base station, where the control channel interference processing information is used to indicate the physical resource used by the control channel transmission of the first base station.
- Step 202 the second base station according to the The control channel interference processing information performs interference processing on the control channel of the first base station.
- the second base station may determine, according to the control channel interference processing information, a physical resource used by the control channel transmission of the first base station, and perform interference processing on a control channel of the first base station.
- the second base station performs interference processing on the control channel of the first base station, where: when the first base station is an interfering base station that generates interference to the second base station, the second base station suppresses or cancels according to the control channel interference processing information. Interference caused by the control channel of the first base station to the channel transmission of the second base station;
- the second base station suppresses or eliminates interference of the control channel of the first base station by itself.
- a method for performing interference processing on a control channel based on a UE served by a second base station, specifically, a second base station
- the UE serving as the interfered base station includes:
- Step 301 The UE receives, by the second base station, control channel interference processing information generated by the first base station, where the control channel interference processing information is used to indicate a physical resource used by the control channel of the first base station.
- Step 302 The UE suppresses or cancels interference of the user equipment by the control channel of the first base station according to the control channel interference processing information.
- the suppressing or canceling, by the user equipment, the interference of the control channel of the first base station to the user equipment may include:
- Part or all of the signals carried by the overlapping portion of the physical resources occupied by the user equipment control channel and the physical resources occupied by the control channel transmission of the first base station are discarded.
- the first base station can send the control channel interference processing information to the second base station, so that the second base station can learn the physical resources occupied by the control channel transmission of the first base station.
- the interference of the control channel of the first base station to the channel transmission of the second base station can be effectively reduced, and the reliability of the second base station channel transmission is effectively improved.
- the reliability of the control channel transmission of the first base station can be effectively ensured, thereby effectively improving the reliability of the channel transmission of the first base station.
- the method for performing interference processing on the control channel provided by the embodiment of the present invention can effectively reduce the interference of the control channel of the interfering base station on the channel transmission of the interfered base station, and improve the reliability of the channel transmission of the interfered base station.
- control channel interference processing information indicates a physical resource used by the control channel transmission of the first base station in a predetermined time interval, that is, the control channel interference processing information is valid within a predetermined time interval, and the predetermined time interval is Need to be known by the first base station and the second base station.
- the first base station is an interfering base station that generates interference to the second base station
- the second base station is an interfered base station.
- Step 401 The interference base station (first base station) generates control channel interference processing information.
- the interfering base station may obtain various related parameters indicating the physical resources occupied by the control channel transmission, and generate control channel interference processing information according to the related parameters, so that the interfered base station (the second base station) Obtaining the physical resources occupied by the control channel transmission of the interfering base station, for example, the control channel of the interfering base station transmits the physical resources occupied in the predetermined time interval.
- the control channel interference processing information may be one or a combination of the following indication parameters, including: a PHICH (Physical Hybrid-ARQ Indicator Channel) resource configuration indication, and a physical control format indication channel ( The content of the physical downlink control channel (PDCCH, Physical Downlink Control Channel), the control channel element (CCE, Control Channel Element) resource usage indication, the resource element group resource usage indication, the PDCCH size And indicating a position indication of the PDCCH indicating the size, a bandwidth indication, an index indication of a subframe in which the control channel is located, a parameter (nB) indication determining a paging number in the paging frame and the paging frame, and a subframe offset value indication.
- a PHICH Physical Hybrid-ARQ Indicator Channel
- a physical control format indication channel The content of the physical downlink control channel (PDCCH, Physical Downlink Control Channel), the control channel element (CCE, Control Channel Element) resource usage indication, the resource element group resource usage indication, the P
- the PDCCH number indication is used to indicate each transmission time interval (eg, a subframe) The number of PDCCHs transmitted by the interfering base station. If the number of PDCCHs transmitted by the interfering base station is determined within a specific transmission time interval and is known to the interfering base station and the interfered base station, the control channel interference processing information does not need to include the indication of the number of PDCCHs.
- the PDCCH in the control channel interference processing information when the PDCCH in the control channel interference processing information is only used to schedule paging and/or system messages, the PDCCH can only be mapped in a common search space, and the size of the PDCCH can only be composed of 4 or 8 CCEs. .
- the size of the PDCCH is 4 CCEs
- the PDCCH has only 4 candidate locations in the common search space
- the size of the PDCCH is 8 CCEs
- the PDCCH has only 2 candidate locations in the common search space. Therefore, 1 bit can be used to indicate the size of the PDCCH, and 2 bits are used to indicate the location of the PDCCH at a determined size (or candidate location of the PDCCH).
- the control channel The interference processing information does not need to include a size indication of the PDCCH, and/or a PDCCH location indication of a determined size.
- paging can only be scheduled on 0, 4, 5, 9 subframes; in TDD (Time Division Duplexing) system, paging It is only possible to schedule on 0, 1, 5, 6 subframes; SIB-1 (System Information Block Type1) information can only be scheduled on subframe 5; if it is interfered on a control channel During the processing information update period, the size and location of the PDCCH used by the interfering base station to schedule paging and/or SIB-1 in all subframes actually transmitting paging and/or subframes transmitting SIB-1 information are unchanged.
- the control channel interference processing information does not need to include an index indication of the subframe in which the control channel is located. Otherwise, the control channel interference processing information needs to include an index indication of a subframe associated with the control channel, and is used to indicate that the control channel interference processing information is associated with that subframe.
- Tables 1 and 2 show examples of control channel interference processing information in two formats that can be used in the embodiments of the present invention, and Tables 1 and 2 also show bits occupied by fields corresponding to the indication parameters. Number and meaning. Where OFDM (Orthogonal Frequency Division Multiplexing) is orthogonal
- 2 is 1 , or 2 , or 3 (or 2 , or 3 , or 4 )
- the PDCCH is used to indicate the number of PDCCHs transmitted by the first base station.
- PDCCH X2 bits indicate PDCCH for each transmission
- the size of the size indication is composed of several CCEs.
- the size of the X3 bits indicates the PDCCH of each transmission.
- the PDCCH location indicates a specific location at a specific size. If the bandwidths of the first base station and the second base station are different bandwidth indications 3, the field indicates the specific bandwidth of the first base station; the standard bandwidth configuration has 6 types.
- the X4 bit associated with the control channel indicates the subframe in which the control channel is located.
- the index of the subframe is indexed; the value of X4 can be 10, 4, 0 nB indicates that the X5 X5 bit indicates the nB value of the source base station configuration.
- the X6 bit indicates that the source base station indicates the X6 or the subframe offset value of the target base station relative to the source base station with respect to the target base station subframe offset value.
- the source base station in Table 1 refers to the first base station transmitting control channel interference processing information.
- the target base station in Table 1 refers to the second base station that receives the control channel interference processing information.
- the control channel interference processing information includes: PHICH resource configuration indication,
- the PCnCH bearer content indication the PDCCH number indication, the PDCCH size indication, the determined location indication of the PDCCH, the bandwidth indication (e.g., system bandwidth indication), the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- the order of the fields occupied by the indication parameters is not limited, corresponding to the physical resource conditions used by the control channels at different times, and each time the control channel interference processing information is generated, Only one or several of the above indication parameters may be included, and the fields corresponding to other indication parameters are empty or specific characters.
- PHICH 1 bit indicates that the PHICH's Duration is normal.
- PCFICH 2 indicates the size of the control area, and the size of the control area is 1. 7 content indication or 2, or 3 (or 2, or 3, or 4) OFDM
- XI bit indicates all available as a bitmap
- the CCE resource usage refers to the usage status of the CCE resource in the CCE resource or the usage status of the control resource resource in the available control channel physical resource of the resource element group XI, indicating the physical resource (indicated by REG) If the bandwidths of the first base station and the second base station are different, the bandwidth indication 3 is used to indicate the specific bandwidth of the first base station; there are 6 standard bandwidth configurations.
- the X2 bit is associated with the control channel control channel as indicated by the bitmap.
- the index of the subframe where X2 is located can be 10, 4, the index indication of the subframe
- 0 nB indicates that the X5 X5 bit indicates the nB value of the source base station configuration.
- the X6 bit indicates that the source base station indicates X6 relative to the target base station or subframe offset value.
- Subframe offset value of the target base station relative to the source base station Note 1:
- the source base station in Table 2 refers to the first base station transmitting control channel interference processing information.
- the target base station in Table 2 refers to the second base station that receives control channel interference processing information.
- the PDCCH number indication, the PDCCH size indication, and the determined location indication of the PDCCH may be characterized by a CCE resource usage indication or a resource element group resource usage indication. Therefore, the format of the control channel interference processing information and the meaning of each field may also be as shown in Table 2.
- the method includes: the control channel interference processing information includes a PHICH resource configuration indication, a PCFICH bearer content indication, and a CCE resource usage.
- control channel interference processing information shown in Table 2 Similar to the control channel interference processing information shown in Table 1, in the control channel interference processing information shown in Table 2, the order of the fields occupied by each indication is not limited, and the physics corresponding to the control channel at the time of the moment is used. In the case of the resource, each time the control channel interference processing information is generated, only one or more of the foregoing indications may be included, and the fields corresponding to other indications are empty or specific characters.
- Step 402 The interfering base station sends the control channel interference processing information to the interfered base station through the X2 interface, or the air interface, or the S1 interface.
- Step 403 The interfered base station sends the learned control channel interference processing information to the UE that is serving itself.
- the interfered base station transmits the RRC (Radio Resource Control) broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling to the UE that is serving the user, and of course, there may be other manners. This is not limited.
- RRC Radio Resource Control
- the control channel interference information needs to include the subframe index of the interfered base station and the interfering base station.
- the subframe offset value corresponding to the offset value indicates that the UE served by the interfered base station is informed that it can determine which subframe of the interfered base station the subframe associated with the control channel interference processing information of the interfering base station corresponds to.
- Step 404 The UE served by the interfering base station suppresses or cancels interference of the control channel of the first base station to the user equipment according to the control channel interference processing information.
- the UE may determine, according to the control channel interference processing information, physical resources occupied by the control channel transmission of the interfering base station; and physically occupy the physical resources occupied by the UE control channel and the control channel of the interfering base station.
- the signals carried by the overlapping parts of the resources are partially or completely discarded.
- the UE served by the interfering base station determines the control of the interfering base station according to the control channel interference processing information generated by the learned interfering base station.
- the physical resources occupied by the channel transmission is mapped to the control channel interference processing information generated by the learned interfering base station.
- the UE may all hand over the decoding.
- the bit soft information carried on the stack resource is set to zero; or the UE may set the bit information carried on the partially overlapping resource to zero according to a certain criterion, for example, a certain criterion may be transmitted by the control channel of the interfering base station. Determining, by the high or low indication of interference energy or power on the overlapping resources determined by the transmit power, that is, the UE can only set the bit soft information carried on the overlapping resource with high interference energy or power indication to zero when decoding. .
- the method for performing interference processing on the control channel in this embodiment is particularly applicable to a scenario where the interfering base station is a high-power base station such as a macro base station, and the interfered base station is a low-power base station.
- multiple low-power base stations are deployed within the coverage of one macro base station.
- the macro base station's control channel may interfere with signal transmission of multiple low-power base stations due to the large transmit power of the macro base station.
- the interference scenario is a bit (macro base station) interference to multiple points (multiple low-power base stations).
- the macro base station can generate control channel interference processing information and transmit The control channel interferes with processing information to a plurality of low power base stations. In this way, the macro base station transmits the same control channel interference processing information to different low-power base stations in its coverage area, so that the macro base station generates the control channel interference processing information to compare the singles, and also facilitates interference coordination between the base stations.
- the first base station is an interfered base station that is interfered by the second base station
- the second base station is an interference base station
- the embodiment includes:
- Step 501 The interfered base station (first base station) generates control channel interference processing information.
- the interfered base station acquires various related parameters indicating the physical resources occupied by the control channel transmission, and Control channel interference processing information is generated based on these relevant parameters.
- the format of the control channel interference processing information and the meaning of each field are as shown in Table 1 or Table 2. For details, refer to the description of the previous embodiment, and details are not described herein again.
- Step 502 The interfered base station passes the control channel through an X2 interface, or an air interface, or an S1 interface.
- the interference processing information is sent to the interfering base station.
- Step 503 The interfering base station performs interference processing on the control channel according to the control channel interference processing information.
- the interfering base station learns the control channel interference processing information, and learns the physical resources used by the control channel of the interfered base station in a specific transmission time interval; therefore, the interfering base station performs control channel resources in the transmission time interval.
- mapping the physical resources that have been used by the interfered base station control channel can be completely avoided or partially avoided, thereby reducing channel interference to the interfered base station and improving the reliability of the channel transmission of the interfered base station.
- this step includes:
- the interfering base station performs control channel resource mapping, and the control channel resource mapping completely avoids or partially avoids the physical resources used by the control channel transmission of the interfered base station.
- the complete avoidance herein may mean that the physical resources occupied by the control channel transmission of the interfering base station do not overlap with the physical resources occupied by the control channel transmission of the interfered base station; the partial avoidance may refer to the control channel of the interfering base station.
- the control channel resource mapping of the interfering base station When a large load or other scenario causes the control channel resource mapping of the interfering base station to completely avoid the physical resources used by the control channel transmission of the interfered base station, the physical resources occupied by the control channel transmission of the interfering base station and the control of the interfered base station may be controlled.
- the physical resources occupied by the channel transmission overlap according to a certain proportion.
- the ratio here may be 10%, 20% or the like, which is not limited herein, and the physical resources of the overlapping portion may be transmitted with low power or high power. Launch,
- the interfering base station needs to consider the interfered when performing interference processing.
- the offset value of the subframe index of the base station and the interfering base station so that when the interfering base station suppresses or circumvents the control channel transmission of the own cell, the interfering base station control channel transmission is suppressed or circumvented by the associated subframe and control channel interference processing.
- the information associated with the interfered base station subframe corresponds.
- the method for performing interference processing on the control channel in this embodiment is particularly applicable to a scenario where the interfering base station is a low power base station and the interfered base station is a high power base station (such as a macro base station).
- the low power base station is a home base station of a closed subscriber group (CSG) type
- the UE of the macro base station is in the vicinity of the home base station, but if the UE is not authorized by the home base station, the UE will not be able to be used by the home base station. service.
- the UE served by the macro base station at this time will suffer interference from the neighboring home base station.
- CSG closed subscriber group
- the interference scenario at this time is interference of multiple points (multiple home base stations) to one point (macro base station). Therefore, the macro base station can generate control channel interference processing information indicating the control resources that the macro base station wants to protect, and transmitting the control channel interference processing information to the home base station. In this way, the macro base station transmits the same control channel interference processing information to different home base stations in the coverage area, so that the macro base station generates the control channel interference processing information comparison unit, and facilitates interference coordination between the home base station and the macro base station. That is, different home base stations circumvent the same control channel resources.
- the interference signal is a cell-specific reference signal (CRS: Cell-specific reference signal), and/or a channel state information reference signal (CSI-RS: Channel state information reference signal), and/or
- CRS Cell-specific reference signal
- CSI-RS Channel state information reference signal
- PRS Positioning reference signal
- an embodiment of the present invention further discloses a method for performing interference processing on an interference signal, based on the first base station, including:
- the first base station generates subframe offset indication information
- the first base station sends the subframe offset indication information to the second base station, so that the second base station performs, according to the subframe offset indication information, the interference signal of the first base station to the second base station. Interference processing.
- the first base station sends the subframe offset indication information to the second base station by using an X2 interface or an air interface or an S1 interface.
- the interference signal includes a reference signal of a cell-specific reference signal and/or channel state information and/or a positioning reference signal and/or other types of reference signals.
- the subframe offset indication information is used to indicate an offset value of a subframe index of the first base station and the second base station.
- an embodiment of the present invention further discloses a method for performing interference processing on an interference signal, where the second base station includes:
- the second base station receives the subframe offset indication information that is sent by the first base station, where the subframe offset indication information is used to indicate an offset value of the subframe index of the first base station and the second base station;
- the second base station may further obtain subframe offset indication information of the first base station and the second base station by using an indication of the upper-level network node;
- the second base station performs interference processing on the interference signal of the first base station according to the subframe offset indication information.
- the performing, by the second base station, interference processing on the interference signal of the first base station according to the subframe offset indication information includes:
- the second base station sends the subframe offset indication information to the user equipment served by the second base station, so that the user equipment determines the content of the interference signal according to the subframe offset indication information, and the interference signal Interference processing is performed.
- the sending, by the second base station, the subframe offset indication information to the user equipment served by the second base station includes:
- the second base station sends the subframe offset indication information to the user equipment served by the second base station by using RRC broadcast signaling or RRC dedicated signaling or physical layer signaling.
- the method is described in detail.
- the first base station is in the pair.
- the second base station generates the interfering base station, and the second base station is the interfered base station, and the subframes of the interfering base station and the interfering base station are synchronized.
- the embodiment includes:
- Step 601 The interfering base station (first base station) generates subframe offset indication information, where the subframe offset value indication information indicates an offset value of a subframe index of the interfered base station (second base station) and the interfering base station.
- Step 602 The interfering base station sends the subframe offset indication information to the interfered base station by using an X2 interface, or an air interface, or an S1 interface.
- Step 603 The interfered base station sends the learned subframe offset indication information to the UE that is serving itself. Specifically, the interfered base station transmits the subframe offset indication information to the UE that is serving by the RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, and of course, there may be other manners.
- the method is defined to enable the UE to determine the content (or information) of the interference signal or the index of the subframe in which the interference signal is located according to the subframe offset value indication information, and then perform interference processing on the interference signal.
- Step 604 The UE served by the interfering base station performs interference processing according to the subframe offset value indication information, to suppress or eliminate the interference signal of the interfering base station.
- the embodiment of the present invention further provides a base station, which can be used as the first base station as described above.
- the method includes:
- the generating unit 10 is configured to generate control channel interference processing information, where the control channel interference processing information is used to indicate a physical resource used by the control channel transmission of the base station;
- the sending unit 11 is configured to send the control channel interference processing information to other base stations, so that other base stations perform interference processing on the control channel of the base station according to the control channel interference processing information.
- the base station provided by the embodiment of the present invention can notify the other base stations of the physical resources used by the control channel by using the control channel interference processing information.
- the other base stations can process the information according to the control channel interference.
- the interference of the control channel of the base station is suppressed or eliminated, and the reliability of channel transmission of other base stations is effectively improved.
- the base station is interfered by other base stations, other base stations can eliminate or suppress the interference according to the control channel interference processing information. Control of the base station Channel interference, effectively improving the reliability of channel transmission of the base station.
- control channel interference processing information is used to indicate the physical resource used by the control channel transmission of the base station in this embodiment, and may include one or a combination of the following indication parameters: a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- indication parameters a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- the sending unit 11 is specifically configured to send control channel interference processing information to other base stations through an X2 interface, or an air interface, or an S1 interface.
- the embodiment of the present invention further provides a base station, which can be used as the second base station as described above.
- the method includes:
- the receiving unit 20 is configured to receive control channel interference processing information sent by another base station, where the control channel interference processing information is used to indicate physical resources used by the control channel transmission of the other base station;
- the processing unit 21 is configured to perform interference processing on a control channel of the other base station according to the control channel interference processing information.
- the base station provided by the embodiment of the present invention can learn the physical resources used by other base station control channel transmissions by using the control channel interference processing information of other base stations.
- the base station can process according to the control channel interference.
- the information suppresses or cancels the interference generated by the control channel transmission of other base stations, and effectively improves the reliability of channel transmission of other base stations; and when the base station is interfered by other base stations, the base station can eliminate the processing information according to the control channel interference, Or suppressing interference of the control channel of other base stations to the channel transmission of the base station, thereby effectively improving the reliability of channel transmission of the base station.
- the base station provided by the embodiment of the present invention can learn the physical resources used by the control channels of other base stations by using the control channel interference processing information of other base stations.
- the base station can process the information according to the control channel interference.
- the base station can eliminate or suppress interference to control channels of other base stations according to the control channel interference processing information, It effectively improves the reliability of channel transmission of other base stations.
- control channel interference processing information is used to indicate the physical resource used by the control channel transmission of the base station in this embodiment, and may include one or a combination of the following indication parameters: a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- indication parameters a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- the processing unit 21 is specifically configured to send the control channel interference processing information to the user equipment of the base station, for example, by using RRC broadcast signaling, RRC dedicated signaling, or physical layer signaling. And causing the control channel interference processing information to be transmitted to the user equipment served by the base station in this embodiment, so that the user equipment interferes with the user equipment by the control channel of the first base station according to the control channel interference processing information. Suppress or eliminate.
- the processing unit 21 is specifically configured to learn, according to the control channel interference processing information, physical resources used for control channel transmission of the other base station, perform control channel resource mapping, and perform the The control channel resource mapping completely avoids or partially circumvents the physical resources used by the control channel transmissions of the other base stations.
- the embodiment of the present invention further provides a UE.
- the method includes: a receiving unit 30, configured to receive, by a second base station, control channel interference processing information generated by a first base station, where The control channel interference processing information is used to indicate a physical resource used by the control channel transmission of the first base station;
- the processing unit 31 is configured to suppress or cancel interference of the control channel of the first base station to the user equipment according to the control channel interference processing information.
- the UE provided by the embodiment of the present invention can learn the physical resources used by the control channel of the first base station by using the control channel interference processing information of the first base station, and the interference of the control channel of the first base station is Line suppression or elimination effectively improves the reliability of channel transmission.
- control channel interference processing information is used to indicate the physical resource used by the control channel transmission of the base station in this embodiment, and may include one or a combination of the following indication parameters: a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- indication parameters a PHICH resource configuration indication, a PCFICH bearer content indication, The CCE resource usage indication, the resource element group resource usage indication, the PDCCH number indication, the PDCCH size indication, the determined PDCCH location indication, the bandwidth indication, the index indication of the subframe in which the control channel is located, the nB indication, and the subframe offset value indication.
- the processing unit 31 is specifically configured to determine, according to the control channel interference processing information, physical resources occupied by the control channel transmission of the first base station, and discard the occupied by the user equipment control channel. Part or all of the signal carried by the overlapping portion of the physical resource with the physical resource occupied by the control channel transmission of the first base station.
- the UE or the second base station may further need to use a physical cell identity code and/or a cell-specific reference signal port indication when performing interference processing on the interference signal, where the two parameters may be A base station sends the second base station to the second base station by using the RRC broadcast signaling or the RRC dedicated signaling or the physical layer signaling.
- the two parameters may also be used. It is obtained by other means well known to those skilled in the art.
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Abstract
本发明实施例提供了一种对控制信道进行干扰处理的方法和装置,涉及通信技术领域,为能够有效降低干扰小区上的控制信道对被干扰小区信道传输的干扰而发明。所述对控制信道进行干扰处理的方法,包括:第一基站生成控制信道干扰处理信息,所述控制信道干扰处理信息用于指示第一基站的控制信道传输所使用的物理资源;所述第一基站向第二基站发送所述控制信道干扰处理信息,以使所述第二基站根据所述控制信道干扰处理信息,对所述第一基站的控制信道进行干扰处理。本发明可用于无线通信系统中。
Description
一种对控制信道进行干扰处理的方法与装置
本申请要求于 2010 年 12 月 31 日提交中国专利局、 申请号为 201010620150.4、 发明名称为"一种对控制信道进行干扰处理的方法与装置"的 中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域,尤其涉及一种对控制信道进行干扰处理的方法 与装置。 背景技术
在一个无线通信系统中, 基站在下行链路上给用户设备 UE (User
Equipment)发射数据和控制信息, 并在上行链路上接收 UE的数据和控制信息。 类似的, UE在上行链路上向基站传输数据和控制信息, 并在下行链路上接收 基站发射的数据和控制信息。
随着行业的发展和技术的进步, 各类无线通信系统均致力于提升系统性 能, 以满足不断增长的性能需求。 以 LTE (长期演进, Long Term Evolution ) /LTE-A (先进的长期演进, Long Term Evolution Advanced )无线通信系统为例, 为了提升系统性能, 可通过在同构网络 (homogeneous network)中的宏基站 (Macro eNodeB)覆盖范围内部署低功率的基站或发射 /接收节点(以下筒称为低 功率基站), 以增强宏基站覆盖范围内的热点区域覆盖、 室内盲点覆盖、 宏基 站的小区边缘覆盖, 并提升小区平均吞吐量、 小区边缘吞吐量、 小区的上行 / 下行频谱利用率等。
为了尽可能的提高系统的频谱利用效率,低功率基站和宏基站进行完全或 部分的频谱复用。 这样, 低功率基站和宏基站之间会产生同频或同道干扰, 特 别是控制信道间的干扰, 会影响系统的可靠性。
发明内容
本发明实施例提供了一种对控制信道进行干扰处理的方法和装置,能够有 效降低干扰小区上的控制信道对被干扰小区信道传输的干扰。
一方面, 本发明的实施例提供了一种对控制信道进行干扰处理的方法, 包 括:
第一基站生成控制信道干扰处理信息,所述控制信道干扰处理信息用于指 示所述第一基站的控制信道传输所使用的物理资源;
所述第一基站向第二基站发送所述控制信道干扰处理信息,以使所述第二 基站根据所述控制信道干扰处理信息,对所述第一基站的控制信道进行干扰处 理。
一方面, 本发明的实施例提供了一种对控制信道进行干扰处理的方法, 包 括:
第二基站接收第一基站发送的控制信道干扰处理信息,所述控制信道干扰 处理信息用于指示所述第一基站的控制信道传输所使用的物理资源;
所述第二基站根据所述控制信道干扰处理信息,对所述第一基站的控制信 道进行干扰处理。
一方面, 本发明的实施例提供了一种对控制信道进行干扰处理的方法, 包 括:
用户设备接收第二基站发送的第一基站生成的控制信道干扰处理信息,所 述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所使用的物 理资源;
所述用户设备根据所述控制信道干扰处理信息对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除。
一方面, 本发明的实施例提供了一种基站, 包括:
生成单元, 用于生成控制信道干扰处理信息, 所述控制信道干扰处理信息
用于指示所述基站的控制信道传输所使用的物理资源;
发送单元, 用于向其它基站发送所述控制信道干扰处理信息, 以使所述其 它基站根据所述控制信道干扰处理信息, 对所述基站的控制信道进行干扰处 理。
一方面, 本发明的实施例提供了一种基站, 包括:
接收单元, 用于接收其它基站发送的控制信道干扰处理信息, 所述控制信 道干扰处理信息用于指示所述其它基站的控制信道传输所使用的物理资源; 处理单元, 用于根据所述控制信道干扰处理信息,对所述其它基站的控制 信道进行干扰处理。
一方面, 本发明的实施例提供了一种用户设备, 包括:
接收单元,用于接收第二基站发送的第一基站生成的控制信道干扰处理信 息,所述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所使用 的物理资源;
处理单元,用于根据所述控制信道干扰处理信息对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除。
通过本发明实施例提供的对控制信道进行干扰处理的方法和装置,第一基 站将控制信道干扰处理信息发送给第二基站,使第二基站能够获知第一基站的 控制信道传输所占用的物理资源以对第一基站的控制信道进行有效的干扰处 理。 能够有效降低干扰基站对于被干扰基站信道传输的干扰,提高被干扰基站 信道传输的可靠性。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅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它的附图。 图 1 为本发明实施例提供的对控制信道进行干扰处理的方法的一种流程 图;
图 2 为本发明实施例提供的对控制信道进行干扰处理的方法的另一种流 程图;
图 3 为本发明实施例提供的对控制信道进行干扰处理的方法的另一种流 程图;
图 4 为本发明实施例提供的对控制信道进行干扰处理的方法的另一种流 程图;
图 5 为本发明实施例提供的对控制信道进行干扰处理的方法的另一种流 程图;
图 6 为本发明实施例提供的对控制信道进行干扰处理的方法的另一种流 程图;
图 7为本发明实施例提供的基站的一种结构框图;
图 8为本发明实施例提供的基站的另一种结构框图;
图 9为本发明实施例提供的用户设备的一种结构框图。 具体实施方式
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。
应当明确, 所描述的实施例仅仅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它实施例, 都属于本发明保护的范围。
为方便说明, 本发明实施例是以 LTE-A无线通信系统为例进行阐述的, 但是本发明不限于此, 本发明实施例同样适用于其它无线通信系统。
需要指出的是, 在本文中基站的概念等同于小区。 为叙述方便, 本发明实 施例中, 以第一基站和第二基站之间产生干扰进行说明, 其中, 第一基站和第 二基站可以是相同类型的基站也可以是不同类型的基站,第一基站可以是宏基 站或低功率基站, 第二基站也可以是宏基站或低功率基站。 可以理解的是, 第 一基站和第二基站间的这种干扰是相互的, 也就是说, 在特定时刻, 第一基站 可为被第二基站干扰的被干扰基站, 也可为对第二基站产生干扰的干扰基站。
如图 1所示, 本发明实施例提供的一种对控制信道进行干扰处理的方法, 基于第一基站, 包括:
步骤 101 , 第一基站生成控制信道干扰处理信息, 所述控制信道干扰处理 信息用于指示第一基站的控制信道传输所使用的物理资源;
步骤 102, 第一基站向第二基站发送所述控制信道干扰处理信息, 以使第 二基站根据所述控制信道干扰处理信息,对所述第一基站的控制信道进行干扰 处理。
具体的,所述第二基站可以根据所述控制信道干扰处理信息确定所述第一 基站的控制信道传输所使用的物理资源,对所述第一基站的控制信道进行干扰 处理。
与图 1所示的方法相对应,如图 2所示, 本发明实施例提供的一种对控制 信道进行干扰处理的方法, 基于第二基站, 包括:
步骤 201 , 第二基站接收第一基站发送的控制信道干扰处理信息, 所述控 制信道干扰处理信息用于指示第一基站的控制信道传输所使用的物理资源; 步骤 202, 第二基站根据所述控制信道干扰处理信息, 对所述第一基站的 控制信道进行干扰处理。
具体的,所述第二基站可以根据所述控制信道干扰处理信息确定所述第一 基站的控制信道传输所使用的物理资源,对所述第一基站的控制信道进行干扰 处理。
其中, 第二基站对所述第一基站的控制信道进行干扰处理包括: 当第一基站为对第二基站产生干扰的干扰基站时,第二基站将根据所述控 制信道干扰处理信息抑制或消除所述第一基站的控制信道对第二基站的信道 传输产生的干扰;
当第一基站为被第二基站干扰的被干扰基站,第二基站将自身对所述第一 基站的控制信道的干扰进行抑制或消除。
与图 1和图 2所示的方法相对应,如图 3所示, 本发明实施例提供的一种 对控制信道进行干扰处理的方法, 基于第二基站服务的 UE, 具体的, 第二基 站作为被干扰基站时服务的 UE, 包括:
步骤 301 , UE接收第二基站发送的第一基站生成的控制信道干扰处理信 息,所述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所使用 的物理资源;
步骤 302, UE根据所述控制信道干扰处理信息对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除。
具体的,所述用户设备对所述第一基站的控制信道对所述用户设备的干扰 进行抑制或消除可以包括:
根据所述控制信道干扰处理信息确定所述第一基站的控制信道传输所占 用的物理资源;
丟弃所述用户设备控制信道所占用的物理资源与所述第一基站的控制信 道传输所占用的物理资源的重叠部分所承载的部分或全部信号。
本发明实施例提供的对控制信道进行干扰处理的方法,第一基站通过将控 制信道干扰处理信息发送给第二基站,使第二基站能够获知第一基站的控制信 道传输所占用的物理资源以对第一基站的控制信道进行有效的干扰处理。当第 二基站为第一基站所干扰的被干扰基站时,能够有效降低第一基站的控制信道 对第二基站的信道传输的干扰,有效提高第二基站信道传输的可靠性。 而当第
一基站为第二基站所干扰的被干扰基站时,能够有效保证第一基站的控制信道 传输的可靠性, 进而有效提高第一基站的信道传输的可靠性。 总之, 本发明实 施例提供的对控制信道进行干扰处理的方法,能够有效降低干扰基站的控制信 道对于被干扰基站信道传输的干扰, 提高被干扰基站信道传输的可靠性。
可选的,控制信道干扰处理信息指示的是规定时间间隔内第一基站的控制 信道传输所使用的物理资源,也就是说,控制信道干扰处理信息在规定的时间 间隔内有效, 该规定时间间隔需要被第一基站和第二基站所共知。
下面通过具体的实施例对本发明对控制信道进行干扰处理的方法进行详 细说明。
如图 4所示, 本实施例对控制信道进行干扰处理的方法中, 第一基站为对 第二基站产生干扰的干扰基站, 第二基站为被干扰基站, 本实施例包括:
步骤 401 , 干扰基站 (第一基站)生成控制信道干扰处理信息。
可选的, 干扰基站(第一基站 )可以获取指示其控制信道传输所占用的物 理资源的各种相关参数, 并根据这些相关参数生成控制信道干扰处理信息, 以 使被干扰基站(第二基站 )获知干扰基站的控制信道传输所占用的物理资源, 例如, 干扰基站的控制信道传输在规定时间间隔内所占用的物理资源。
其中, 所述控制信道干扰处理信息可由下列指示参数之一或组合而成, 包 括: 物理混合自动重传请求指示信道 ( PHICH, Physical Hybrid-ARQ Indicator Channel ) 资源配置指示、 物理控制格式指示信道( PCFICH, Physical Control Format Indicator Channel )承载内容指示、物理下行控制信道( PDCCH, Physical Downlink Control Channel )数目指示、 控制信道元素 ( CCE, Control Channel Element )资源使用指示、 资源元素组资源使用指示、 PDCCH大小指示、 确定 大小的 PDCCH的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定 寻呼帧和寻呼帧内寻呼次数的参数 ( nB )指示以及子帧偏移值指示。
举例而言, PDCCH数目指示用于指示每一个传输时间间隔 (例如子帧)内
干扰基站传输的 PDCCH数目。 如果在特定的传输时间间隔内, 干扰基站传输 的 PDCCH数目是确定的, 且为干扰基站和被干扰基站共知, 则控制信道干扰 处理信息中不需要包括 PDCCH的数目指示。
又例如,当控制信道干扰处理信息中的 PDCCH只是用于调度寻呼和 /或系 统消息时, 上述 PDCCH只能映射在公共搜索空间, 且上述 PDCCH的大小只 能由 4个或者 8个 CCE构成。 当 PDCCH的大小是 4个 CCE时, PDCCH在 公共搜索空间中只有 4个候选位置;当 PDCCH的大小是 8个 CCE时, PDCCH 在公共搜索空间中只有 2个候选位置。 因此, 可以用 1个比特来指示 PDCCH 的大小,用 2个比特指示 PDCCH在确定的大小下的位置 (或 PDCCH的候选位 置)。 进一步地, 如果用于调度寻呼和 /或系统消息的 PDCCH的大小, 和 /或位 置是固定的(固定的 PDCCH大小,和 /或位置需要干扰基站和被干扰基站共知), 则控制信道干扰处理信息中不需要包括 PDCCH的大小指示,和 /或确定大小的 PDCCH位置指示。
又例如, 在 FDD (频分复用, Frequency Division Duplexing ) 系统, 寻呼 只可能在 0、 4、 5、 9 子帧上进行调度; 在 TDD (时分复用, Time Division Duplexing ) 系统, 寻呼只可能在 0、 1、 5、 6子帧上进行调度; 在 SIB-1 (系 统消息块类型 1 , System Information Block Typel )信息只能在 5号子帧上进 行调度; 若在一个控制信道干扰处理信息更新周期内, 干扰基站在所有实际发 寻呼的子帧和 /或发 SIB-1信息的子帧内用于调度寻呼和 /或 SIB-1 的 PDCCH 的大小和位置都是不变的, 且为干扰基站、 被干扰基站、 被干扰基站服务的 UE共知, 则上述控制信道干扰处理信息中不需要包含控制信道所在子帧的索 引指示。 否则, 上述控制信道干扰处理信息中需要包含控制信道所关联子帧的 索引指示, 用于指示控制信道干扰处理信息是和那个子帧相关联的。
具体的,表一和表二示出了本发明实施例中可采用的两种格式的控制信道 干扰处理信息示例,表一和表二还示出了各指示参数对应的字段所占用的比特
数和含义。 其中, OFDM ( Orthogonal Frequency Division Multiplexing)即正交
表一: 控制信道干扰处理信息 字段描述 比特数 含义
1 比特指示 PHICH 的持续时间
1
PHICH ( Duration ) 是正常的还是扩展的 资源配置指示 指示 PHICH资源 ( Ng )值, Ng取值
2
1/6、 1/2、 1、 2 指示控制区域的大小, 控制区域大小
PCFICH
2 为 1 , 或 2 , 或 3 (或为 2 , 或 3 , 或 4) 载内容指示
个 OFDM符号
PDCCH 用于指示第一基站传输的 PDCCH数
XI
的数目指示
PDCCH X2个比特指示每一个传输的 PDCCH
X2
的大小指示 的大小是由几个 CCE组成 确定大小的 X3个比特指示每一个传输的 PDCCH
X3
PDCCH位置指示 在特定的大小下的具体位置 若第一基站和第二基站的带宽不同 带宽指示 3 时, 用此字段指示第一基站的具体带 宽; 标准带宽配置有 6种
控制信道所关联 X4 比特指示控制信道所在子帧的索
X4
子帧的索引指示 引; X4取值可以为 10 , 4 , 0 nB指示 X5 X5比特指示源基站配置的 nB值
X6 比特指示源基站相对于目标基站 子帧偏移值指示 X6 或者目标基站相对于源基站的子帧 偏移值
注 1 : 表一中源基站是指传输控制信道干扰处理信息的第一基站
注 2: 表一中目标基站是指接收控制信道干扰处理信息的第二基站 如表一所示, 控制信道干扰处理信息包括: PHICH 资源配置指示、
PCnCH承载内容指示、 PDCCH数目指示、 PDCCH 大小指示、 确定大小的 PDCCH的位置指示、 带宽指示 (例如系统带宽指示) 、 控制信道所在子帧的 索引指示、 nB指示、 子帧偏移值指示。
在表一所示的控制信道干扰处理信息中,各指示参数所占用的字段的顺序 不限,对应于不同时刻的控制信道所使用的物理资源情况,每次生成的控制信 道干扰处理信息中, 可只包括上述指示参数中的一种或几种, 而其它指示参数 对应的字段为空或者为特定的字符。
表二: 控制信道干扰处理信息 字段描述 比特数 含义
PHICH 1比特指示 PHICH的 Duration是正常的还
1
资源配置指示 是扩展的
2 指示 Ng值, Ng取值 1/6、 1/2、 1、 2
PCFICH 2 指示控制区域的大小, 控制区域大小为 1 ,
7 载内容指示 或 2 , 或 3(或为 2 , 或 3 , 或 4)个 OFDM
口
付
XI 比特按照 bitmap 的方式指示所有可用
CCE 资源使用指 的 CCE资源中的 CCE资源的使用状态或 示或资源元素组 XI 者所有可用的控制信道物理资源中控制信 资源使用指示 道物理资源(如以 REG为单位进行指示)的 使用状态 若第一基站和第二基站的带宽不同时, 用 带宽指示 3 此字段指示第一基站的具体带宽; 标准带 宽配置有 6种。
X2 比特按照 bitmap 的方式指示控制信道 控制信道所关联
X2 所在子帧的索引; X2取值可以为 10 , 4 , 子帧的索引指示
0 nB指示 X5 X5比特指示源基站配置的 nB值
X6 比特指示源基站相对于目标基站或者 子帧偏移值指示 X6
目标基站相对于源基站的子帧偏移值 注 1 : 表二中源基站是指传输控制信道干扰处理信息的第一基站
注 2: 表二中目标基站是指接收控制信道干扰处理信息的第二基站
PDCCH数目指示、 PDCCH大小指示和确定大小的 PDCCH的位置指示可 通过 CCE资源使用指示或资源元素组资源使用指示所表征, 因此, 控制信道 干扰处理信息的格式以及各字段的含义还可如表二所示, 包括: 控制信道干扰 处理信息包括 PHICH资源配置指示、 PCFICH承载内容指示、 CCE资源使用
指示或资源元素组资源使用指示、 带宽指示、 控制信道所在子帧的索引指示、 nB指示、 子帧偏移值指示。
和表一所示的控制信道干扰处理信息类似,在表二所示的控制信道干扰处 理信息中, 各指示所占用的字段的顺序不限,且对应于所处时刻的控制信道所 使用的物理资源情况,每次生成的控制信道干扰处理信息中, 可只包括上述指 示中的一种或几种, 而其它指示对应的字段为空或者为特定的字符。
步骤 402: 干扰基站通过 X2接口, 或者空口, 或者 S1接口将控制信道干 扰处理信息发送给被干扰基站。
步骤 403: 被干扰基站将获知的控制信道干扰处理信息发送给自己服务的 UE。
具体的, 被干扰基站通过 RRC (无线资源控制, Radio Resource Control ) 广播信令, 或 RRC专有信令, 或物理层信令传递给自己服务的 UE, 当然还可 有其它方式, 本发明对此不做限定。
需要说明的是, 若被干扰基站和干扰基站是子帧同步,且被干扰基站和干 扰基站的子帧索引存在偏移时,控制信道干扰信息中需要包括被干扰基站和干 扰基站的子帧索引的偏移值对应的子帧偏移值指示,以告知被干扰基站服务的 UE, 使其能够确定干扰基站的控制信道干扰处理信息相关联的子帧对应的是 被干扰基站的哪个子帧。
步骤 404: 被干扰基站服务的 UE根据所述控制信道干扰处理信息对所述 第一基站的控制信道对所述用户设备的干扰进行抑制或消除。
具体的, UE可以根据所述控制信道干扰处理信息确定干扰基站的控制信 道传输所占用的物理资源;将所述 UE控制信道所占用的物理资源与所述干扰 基站的控制信道传输所占用的物理资源的重叠部分所承载的信号进行部分或 者全部丟弃。 以在译码过程中进行部分或全部信号丟弃为例,被干扰基站服务 的 UE根据所获知的干扰基站生成的控制信道干扰处理信息确定干扰基站的控
制信道传输所占用的物理资源。 在一个传输时间间隔内, 当 UE确定的干 4尤基 站的控制信道传输所占用的物理资源与调度该 UE的控制信道所占用的物理资 源有资源重叠时, UE可以在译码时将全部交叠资源上承载的比特软信息设置 为零; 或者 UE可以根据一定的准则在译码时将部分交叠资源上承载的比特信 息设置为零,例如一定的准则可以由干扰基站的控制信道传输的发射功率确定 的交叠资源上的干扰能量或功率的高或低指示来确定, 即 UE可以在译码时仅 将干扰能量或功率指示为高的交叠资源上承载的比特软信息设置为零。
本实施例对控制信道进行干扰处理的方法特别适用于干扰基站是宏基站 等高功率基站, 而被干扰基站是低功率基站的场景。通常在一个宏基站的覆盖 范围内会部署多个低功率基站, 由于宏基站的发射功率较大,宏基站的控制信 道会对多个低功率基站的信号传输造成干扰。 通常, 这样干扰场景是一点 (宏 基站)对多点 (多个低功率基站)的干扰,采用本实施例的对控制信道进行干扰处 理的方法,宏基站可以生成控制信道干扰处理信息, 并传递控制信道干扰处理 信息给多个低功率基站。 这样,宏基站对自己覆盖范围内的不同的低功率基站 传递的控制信道干扰处理信息是相同的,从而使得宏基站生成控制信道干扰处 理信息比较筒单, 也方便基站间进行干扰协调。
如图 5所示, 本实施例对控制信道进行干扰处理的方法中, 第一基站为被 第二基站所干扰的被干扰基站, 第二基站为干扰基站, 本实施例包括:
步骤 501 , 被干扰基站(第一基站)生成控制信道干扰处理信息。
为了使干扰基站(第二基站)获知被干扰基站的控制信道传输在规定时间 间隔内所占用的物理资源,被干扰基站将获取指示其控制信道传输所占用的物 理资源的各种相关参数, 并根据这些相关参数生成控制信道干扰处理信息。具 体的,控制信道干扰处理信息的格式及各字段的含义如表一或表二所示, 具体 请参见前一实施例的描述, 此处不再赘述。
步骤 502, 被干扰基站通过 X2接口, 或者空口, 或者 S1接口将控制信道
干扰处理信息发送给干扰基站。
步骤 503 , 干扰基站根据所述控制信道干扰处理信息对控制信道进行干扰 处理。
本步骤中, 干扰基站获知了控制信道干扰处理信息, 就获知了被干扰基站 在特定的传输时间间隔内的控制信道所使用的物理资源; 因此, 干扰基站在该 传输时间间隔内进行控制信道资源映射时,就可以完全避开或部分避开被干扰 基站控制信道已经使用的物理资源,从而降低对被干扰基站的信道干扰,提高 被干扰基站信道传输的可靠性。 即具体的, 本步骤包括:
干扰基站根据所述控制信道干扰处理信息,获知所述被干扰基站的控制信 道传输所使用的物理资源;
干扰基站进行控制信道资源映射,所述控制信道资源映射完全避开或部分 避开所述被干扰基站的控制信道传输所使用的物理资源。举例说明, 这里的完 全避开可以是指干扰基站的控制信道传输所占用的物理资源与被干扰基站的 控制信道传输所占用的物理资源没有重叠;部分避开可以是指当干扰基站的控 制信道大负载或其他场景导致干扰基站的控制信道资源映射不能完全避开被 干扰基站的控制信道传输所使用的物理资源时,可以使干扰基站的控制信道传 输所占用的物理资源与被干扰基站的控制信道传输所占用的物理资源按照一 定比例重叠, 这里的比例可以是 10 %、 20 %或其他, 在此不做限定, 并且, 其中重叠部分的物理资源可以采用低功率发射,也可以采用高功率发射, 这里 也不做限定。
需要说明的是, 本步骤中, 若被干扰基站和干扰基站是子帧同步, 且被干 扰基站和干扰基站的子帧索引存在偏移时,干扰基站在进行干扰处理时还需要 考虑到被干扰基站和干扰基站的子帧索引的偏移值,以使干扰基站对自己小区 的控制信道传输进行抑制或规避时,使干扰基站控制信道传输进行抑制或规避 相关联的子帧与控制信道干扰处理信息相关联的被干扰基站子帧相对应。
本实施例对控制信道进行干扰处理的方法特别适用于干扰基站是低功率 基站, 而被干扰基站是高功率基站 (如宏基站)的场景。 如当低功率基站是闭环 用户组 (CSG: Close subscriber group)类型的家庭基站时, 宏基站的 UE虽然处 于家庭基站的附近, 但是若该 UE没有被家庭基站授权, 该 UE将不能被家庭 基站服务。且,此时该宏基站服务的 UE将遭受来自于邻近的家庭基站的干扰。 考虑到在一个宏基站的覆盖范围内会部署多个家庭基站,此时的干扰场景是多 点 (多个家庭基站)对一点 (宏基站)的干扰。 因此宏基站可以生成控制信道干扰 处理信息, 所述控制信道干扰处理信息指示了宏基站想要保护的控制资源, 并 传递控制信道干扰处理信息给家庭基站。这样,宏基站对自己覆盖范围内的不 同的家庭基站传递的控制信道干扰处理信息是相同的,从而使得宏基站生成控 制信道干扰处理信息比较筒单, 也方便家庭基站和宏基站间进行干扰协调, 即 不同家庭基站规避相同的控制信道资源。
在某些场景下, 如当干扰信号是小区特定的参考信号 (CRS: Cell-specific reference signal) , 和 /或信道状态信息的参考信号(CSI-RS: Channel state information reference signal) , 和 /或定位参考信号 (PRS: Positioning reference signal), 和 /或其它类型的参考信号时, 因为在每个传输时间间隔内参考信号的 生成与子帧索引相关, 所以 UE在对干扰信号进行干扰处理时, 需要知道被干 扰基站和干扰基站的子帧偏移值,从而确定干扰信号所在子帧的索引, 进而确 定干扰信号的内容, 对干扰信号进行干扰处理。
鉴于此, 本发明的实施例还公开了一种对干扰信号进行干扰处理的方法, 基于第一基站, 包括:
第一基站生成子帧偏移指示信息;
第一基站向第二基站发送所述子帧偏移指示信息,以使所述第二基站根据 所述子帧偏移指示信息,对所述第一基站对所述第二基站的干扰信号进行干扰 处理。
可选的, 所述第一基站通过 X2接口或空口或 S1接口向所述第二基站发 送所述子帧偏移指示信息。
其中, 所述干扰信号包括小区特定参考信号和 /或信道状态信息的参考信 号和 /或定位参考信号和 /或其他类型的参考信号。
其中,所述子帧偏移指示信息用于指示所述第一基站和所述第二基站的子 帧索引的偏移值。
与前述对干扰信号进行干扰处理的方法相对应,本发明的实施例还公开了 一种对干扰信号进行干扰处理的方法, 基于第二基站, 包括:
第二基站接收第一基站发送的子帧偏移指示信息,所述子帧偏移指示信息 用于指示所述第一基站和所述第二基站的子帧索引的偏移值;
可选的,所述第二基站还可以通过上一级网络节点的指示获取所述第一基 站和所述第二基站的的子帧偏移指示信息;
所述第二基站根据所述子帧偏移指示信息,对所述第一基站的干扰信号进 行干扰处理。
可选的, 所述第二基站根据所述子帧偏移指示信息,对所述第一基站的干 扰信号进行干扰处理包括:
所述第二基站将所述子帧偏移指示信息发送给所述第二基站服务的用户 设备, 以使所述用户设备根据所述子帧偏移指示信息确定干扰信号的内容,对 干扰信号进行干扰处理。
可选的,所述第二基站将所述子帧偏移指示信息发送给所述第二基站服务 的用户设备包括:
所述第二基站通过 RRC广播信令或 RRC专有信令或物理层信令将所述子 帧偏移指示信息发送给所述第二基站服务的用户设备。 法进行详细说明, 本实施例对干扰信号进行干扰处理的方法中, 第一基站为对
第二基站产生干扰的干扰基站, 第二基站为被干扰基站, 且被干扰基站和干扰 基站的子帧同步, 如图 6所示, 本实施例包括:
步骤 601 , 干扰基站(第一基站)生成子帧偏移指示信息, 所述子帧偏移 值指示信息指示了被干扰基站 (第二基站)和干扰基站的子帧索引的偏移值。
步骤 602, 干扰基站通过 X2接口, 或者空口, 或者 S1接口将子帧偏移指 示信息发送给被干扰基站。
步骤 603 ,被干扰基站将获知的子帧偏移指示信息发送给自己服务的 UE。 具体的, 被干扰基站通过 RRC广播信令, 或 RRC专有信令, 或物理层信 令将子帧偏移指示信息传递给自己服务的 UE, 当然还可有其它方式, 本发明 对此不做限定, 以使该 UE能够根据子帧偏移值指示信息, 确定干扰信号的内 容 (或信息)或者干扰信号所在子帧的索引, 进而对干扰信号进行干扰处理。
步骤 604, 被干扰基站服务的 UE根据所述子帧偏移值指示信息进行干扰 处理, 以对干扰基站的的干扰信号进行抑制或消除。
与前述方法相对应, 本发明实施例还提供了一种基站, 可作为前文所述的 第一基站, 如图 7所示, 包括:
生成单元 10, 用于生成控制信道干扰处理信息, 所述控制信道干扰处理 信息用于指示所述基站的控制信道传输所使用的物理资源;
发送单元 11 , 用于向其它基站发送所述控制信道干扰处理信息, 以使其 它基站根据所述控制信道干扰处理信息, 对所述基站的控制信道进行干扰处 理。
本发明实施例提供的基站,能够将其控制信道所使用的物理资源通过控制 信道干扰处理信息告知给其它基站, 当该基站对其它基站产生干扰时, 其它基 站能够根据所述控制信道干扰处理信息,对该基站控制信道的干扰进行抑制或 消除,有效提高其它基站信道传输的可靠性; 而当该基站受到其它基站的干扰 时, 其它基站能够根据所述控制信道干扰处理信息, 消除或抑制对该基站的控
制信道的干扰, 有效提高该基站的信道传输的可靠性。
其中, 具体的, 所述控制信道干扰处理信息用于指示本实施例的基站的控 制信道传输所使用的物理资源, 可包括下列指示参数之一或组合: PHICH 资 源配置指示、 PCFICH承载内容指示、 CCE资源使用指示、 资源元素组资源使 用指示、 PDCCH数目指示、 PDCCH大小指示、 确定大小的 PDCCH的位置指 示、 带宽指示、 控制信道所在子帧的索引指示、 nB指示、 子帧偏移值指示。
其中, 发送单元 11具体用于通过 X2接口, 或者空口, 或者 S1接口向其 它基站发送控制信道干扰处理信息。
与前述方法相对应, 本发明实施例还提供了一种基站, 可作为前文所述的 第二基站, 如图 8所示, 包括:
接收单元 20, 用于接收其它基站发送的控制信道干扰处理信息, 所述控 制信道干扰处理信息用于指示所述其它基站的控制信道传输所使用的物理资 源;
处理单元 21 , 用于根据所述控制信道干扰处理信息, 对所述其它基站的 控制信道进行干扰处理。
本发明实施例提供的基站,能够通过其它基站的控制信道干扰处理信息获 知其它基站控制信道传输所使用的物理资源, 当该基站对其它基站产生干扰 时, 该基站能够根据所述控制信道干扰处理信息,抑制或消除对其它基站控制 信道传输产生的的干扰,有效提高其他基站信道传输的可靠性; 而当该基站受 到其它基站的干扰时, 该基站能够根据所述控制信道干扰处理信息, 消除或抑 制其它基站的控制信道对该基站信道传输的干扰,有效提高该基站的信道传输 的可靠性。
本发明实施例提供的基站,能够通过其它基站的控制信道干扰处理信息获 知其它基站控制信道所使用的物理资源, 当该基站对其它基站产生干扰时, 该 基站能够根据所述控制信道干扰处理信息,对其它基站控制信道对其的干扰进
行抑制或消除,有效提高该基站信道传输的可靠性; 而当该基站受到其它基站 的干扰时, 该基站能够根据所述控制信道干扰处理信息, 消除或抑制对其它基 站的控制信道的干扰, 有效提高其它基站的信道传输的可靠性。
其中, 具体的, 所述控制信道干扰处理信息用于指示本实施例的基站的控 制信道传输所使用的物理资源, 可包括下列指示参数之一或组合: PHICH 资 源配置指示、 PCFICH承载内容指示、 CCE资源使用指示、 资源元素组资源使 用指示、 PDCCH数目指示、 PDCCH大小指示、 确定大小的 PDCCH的位置指 示、 带宽指示、 控制信道所在子帧的索引指示、 nB指示、 子帧偏移值指示。
其中, 在本发明的一个实施例中, 处理单元 21具体用于将所述控制信道 干扰处理信息发送给所述基站的用户设备, 例如通过 RRC广播信令、 RRC专 有信令或物理层信令将所述控制信道干扰处理信息传递给本实施例基站服务 的用户设备,以使所述用户设备根据所述控制信道干扰处理信息对所述第一基 站的控制信道对所述用户设备的干扰进行抑制或消除。
在本发明的另一个实施例中, 处理单元 21具体用于根据所述控制信道干 扰处理信息, 获知所述其它基站的控制信道传输所使用的物理资源,进行控制 信道资源映射,并使所述控制信道资源映射完全避开或部分避开所述其它基站 的控制信道传输所使用的物理资源。
与前述方法相对应, 本发明实施例还提供了一种 UE, 如图 9所示, 包括: 接收单元 30, 用于接收第二基站发送的第一基站生成的控制信道干扰处 理信息,所述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所 使用的物理资源;
处理单元 31 , 用于根据所述控制信道干扰处理信息对所述第一基站的控 制信道对所述用户设备的干扰进行抑制或消除。
本发明实施例提供的 UE, 能够通过第一基站的控制信道干扰处理信息获 知第一基站控制信道所使用的物理资源,并对第一基站控制信道对其的干扰进
行抑制或消除, 有效提高信道传输的可靠性。
其中, 具体的, 所述控制信道干扰处理信息用于指示本实施例的基站的控 制信道传输所使用的物理资源, 可包括下列指示参数之一或组合: PHICH 资 源配置指示、 PCFICH承载内容指示、 CCE资源使用指示、 资源元素组资源使 用指示、 PDCCH数目指示、 PDCCH大小指示、 确定大小的 PDCCH的位置指 示、 带宽指示、 控制信道所在子帧的索引指示、 nB指示、 子帧偏移值指示。
在本发明的一个实施例中, 处理单元 31具体用于根据所述控制信道干扰 处理信息确定所述第一基站的控制信道传输所占用的物理资源,丟弃所述用户 设备控制信道所占用的物理资源与所述第一基站的控制信道传输所占用的物 理资源的重叠部分所承载的部分或全部信号。
可选的, 上述实施例中, UE或第二基站在对干扰信号进行干扰处理时可 能还需要用到物理小区身份识别码和 /或小区特定参考信号端口指示, 这两个 参数可以是由第一基站通过 X2或 S1或空口发送给第二基站, 第二基站可以 通过 RRC广播信令或 RRC专有信令或物理层信令通知给第二基站服务的 UE, 当然这两个参数也可以是本领域技术人员熟知的其它手段获得。
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分流程可 以通过计算机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。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于 此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到 变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应 以所述权利要求的保护范围为准。
Claims
1、 一种对控制信道进行干扰处理的方法, 其特征在于, 包括:
第一基站生成控制信道干扰处理信息,所述控制信道干扰处理信息用于指 示所述第一基站的控制信道传输所使用的物理资源;
所述第一基站向第二基站发送所述控制信道干扰处理信息,以使所述第二 基站根据所述控制信道干扰处理信息,对所述第一基站的控制信道进行干扰处 理。
2、 根据权利要求 1所述的方法, 其特征在于, 所述控制信道干扰处理信 息包括下列指示参数之一或组合:
物理混合自动重传请求指示信道资源配置指示、物理控制格式指示信道承 载内容指示、 物理下行控制信道数目指示、 控制信道元素资源使用指示、 资源 元素组资源使用指示、物理下行控制信道大小指示、确定大小的物理下行控制 信道的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定寻呼帧和寻 呼帧内寻呼次数的参数指示以及子帧偏移值指示。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述第一基站向第二 基站发送所述控制信道干扰处理信息包括:
所述第一基站通过 X2接口或空口或 S1接口向所述第二基站发送所述控 制信道干扰处理信息。
4、 一种对控制信道进行干扰处理的方法, 其特征在于, 包括:
第二基站接收第一基站发送的控制信道干扰处理信息,所述控制信道干扰 处理信息用于指示所述第一基站的控制信道传输所使用的物理资源;
所述第二基站根据所述控制信道干扰处理信息,对所述第一基站的控制信 道进行干扰处理。
5、 根据权利要求 4所述的方法, 其特征在于, 所述控制信道干扰处理信 息包括下列指示参数之一或组合:物理混合自动重传请求指示信道资源配置指 示、 物理控制格式指示信道承载内容指示、 物理下行控制信道数目指示、 控制 信道元素资源使用指示、 资源元素组资源使用指示、物理下行控制信道大小指 示、 确定大小的物理下行控制信道的位置指示、 带宽指示、 控制信道所在子帧 的索引指示、 确定寻呼帧和寻呼帧内寻呼次数的参数指示以及子帧偏移值指 示。
6、 根据权利要求 4或 5所述的方法, 其特征在于, 所述第二基站根据所 述控制信道干扰处理信息, 对所述第一基站的控制信道进行干扰处理包括: 所述第二基站将所述控制信道干扰处理信息发送给所述第二基站服务的 用户设备,以使所述用户设备根据所述控制信道干扰处理信息对所述第一基站 的控制信道对所述用户设备的干扰进行抑制或消除;
或者
所述第二基站根据所述控制信道干扰处理信息,获知所述第一基站的控制 信道传输所使用的物理资源;
所述第二基站进行控制信道资源映射,所述控制信道资源映射完全避开或 部分避开所述第一基站的控制信道传输所使用的物理资源。
7、 根据权利要求 6所述的方法, 其特征在于, 所述第二基站将所述控制 信道干扰处理信息发送给所述第二基站服务的用户设备包括:
所述第二基站通过 RRC广播信令或 RRC专有信令或物理层信令将所述控 制信道干扰处理信息发送给所述第二基站服务的用户设备。
8、 一种对控制信道进行干扰处理的方法, 其特征在于, 包括: 用户设备接收第二基站发送的第一基站生成的控制信道干扰处理信息,所 述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所使用的物 理资源;
所述用户设备根据所述控制信道干扰处理信息对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除。
9、 根据权利要求 8所述的方法, 其特征在于, 所述控制信道干扰处理信 息包括下列指示参数之一或组合:
物理混合自动重传请求指示信道资源配置指示、物理控制格式指示信道承 载内容指示、 物理下行控制信道数目指示、 控制信道元素资源使用指示、 资源 元素组资源使用指示、物理下行控制信道大小指示、确定大小的物理下行控制 信道的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定寻呼帧和寻 呼帧内寻呼次数的参数指示以及子帧偏移值指示。
10、 根据权利要求 8或 9所述的方法, 其特征在于,
所述用户设备根据所述控制信道干扰处理信息,对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除包括:
所述用户设备根据所述控制信道干扰处理信息确定所述第一基站的控制 信道传输所占用的物理资源;
丟弃所述用户设备控制信道所占用的物理资源与所述第一基站的控制信 道传输所占用的物理资源的重叠部分所承载的部分或全部信号。
11、 一种基站, 其特征在于, 包括:
生成单元, 用于生成控制信道干扰处理信息, 所述控制信道干扰处理信息 用于指示所述基站的控制信道传输所使用的物理资源;
发送单元, 用于向其它基站发送所述控制信道干扰处理信息, 以使所述其 它基站根据所述控制信道干扰处理信息, 对所述基站的控制信道进行干扰处 理。
12、 根据权利要求 11所述的基站, 其特征在于, 所述控制信道干扰处理 信息包括下列指示参数之一或组合:
物理混合自动重传请求指示信道资源配置指示、物理控制格式指示信道承 载内容指示、 物理下行控制信道数目指示、 控制信道元素资源使用指示、 资源 元素组资源使用指示、物理下行控制信道大小指示、确定大小的物理下行控制 信道的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定寻呼帧和寻 呼帧内寻呼次数的参数指示以及子帧偏移值指示。
13、 一种基站, 其特征在于, 包括:
接收单元, 用于接收其它基站发送的控制信道干扰处理信息, 所述控制信 道干扰处理信息用于指示所述其它基站的控制信道传输所使用的物理资源; 处理单元, 用于根据所述控制信道干扰处理信息,对所述其它基站的控制 信道进行干扰处理。
14、 根据权利要求 13所述的基站, 所述控制信道干扰处理信息包括下列 指示参数之一或组合:
物理混合自动重传请求指示信道资源配置指示、物理控制格式指示信道承 载内容指示、 物理下行控制信道数目指示、 控制信道元素资源使用指示、 资源 元素组资源使用指示、物理下行控制信道大小指示、确定大小的物理下行控制 信道的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定寻呼帧和寻 呼帧内寻呼次数的参数指示以及子帧偏移值指示。
15、 根据权利要求 13或 14所述的基站, 其特征在于, 所述处理单元具体 用于:
将所述控制信道干扰处理信息发送给所述基站服务的用户设备,以使所述 用户设备根据所述控制信道干扰处理信息对所述其它基站的控制信道对所述 用户设备的干扰进行抑制或消除;
或者,
根据所述控制信道干扰处理信息,获知所述其它基站的控制信道传输所使 用的物理资源;
进行控制信道资源映射,并使所述控制信道资源映射完全避开或部分避开 所述其它基站的控制信道传输所使用的物理资源。
16、 一种用户设备, 其特征在于, 包括:
接收单元,用于接收第二基站发送的第一基站生成的控制信道干扰处理信 息,所述控制信道干扰处理信息用于指示所述第一基站的控制信道传输所使用 的物理资源;
处理单元,用于根据所述控制信道干扰处理信息对所述第一基站的控制信 道对所述用户设备的干扰进行抑制或消除。
17、 根据权利要求 16所述的用户设备, 其特征在于, 所述控制信道干扰 处理信息包括下列指示参数之一或组合:
物理混合自动重传请求指示信道资源配置指示、物理控制格式指示信道承 载内容指示、 物理下行控制信道数目指示、 控制信道元素资源使用指示、 资源 元素组资源使用指示、物理下行控制信道大小指示、确定大小的物理下行控制 信道的位置指示、 带宽指示、 控制信道所在子帧的索引指示、 确定寻呼帧和寻 呼帧内寻呼次数的参数指示以及子帧偏移值指示。
18、 根据权利要求 16或 17所述的用户设备, 其特征在于, 所述处理单元 具体用于根据所述控制信道干扰处理信息确定所述第一基站的控制信道传输 所占用的物理资源;
丟弃所述用户设备控制信道所占用的物理资源与所述第一基站的控制信 道传输所占用的物理资源的重叠部分所承载的部分或全部信号。
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