CN102625456A - Methods for sending, receiving and transmitting downlink control information and related devices - Google Patents
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Abstract
The invention discloses methods for sending, receiving and transmitting downlink control information (DCI) and related devices. More specifically, the sending method comprises: a base station sends DCI to user equipment (UE) on a subframe through a physical downlink control channel (PDCCH), wherein downlink control information carried by one PDCCH is used for scheduling a physical downlink shared channel (PDSCH) and a physical uplink shared channel (PUSCH) according to one or more of the following modes: scheduling a plurality of PDSCHs; scheduling a plurality of PUSCHs; scheduling one PDSCH, which is transmitted on multiple continuous subframes; and scheduling one PDSCH, which is transmitted on multiple continuous subframes. According to the invention, sending, receiving and monitoring of DCI are carried out in the scene of indoor hotspot coverage of long term evolution (LTE); and moreover, transmission with low cost, rapid rate and high reliability is realized.
Description
Technical Field
The present invention relates to the field of mobile wireless communications, and in particular, to a method and a related apparatus for transmitting, receiving and transmitting downlink control information in a wireless communication system.
Background
A radio frame (radio frame) in a Long Term Evolution (LTE) system includes frame structures of a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode. In the frame structure of the FDD mode, as shown in fig. 1, a 10 millisecond (ms) radio frame is composed of twenty slots (slots) with the length of 0.5ms and the number of 0-19, and the slots 2i and 2i +1 constitute a subframe (subframe) i with the length of 1 ms. In TDD mode, as shown in fig. 2, a 10ms radio frame is composed of two half-frames (half frames) with a length of 5ms, one half-frame includes 5 subframes with a length of 1ms, and subframe i is defined as 2 slots 2i and 2i +1 with a length of 0.5 ms. In both of the above frame structures, for a standard Cyclic Prefix (Normal CP), a slot contains 7 symbols with a length of 66.7 microseconds (us), wherein the CP length of the first symbol is 5.21us, and the length of the remaining 6 symbols is 4.69 us; for Extended Cyclic Prefix (Extended CP), one slot contains 6 symbols, and the CP length of all symbols is 16.67 us.
The version number of LTE corresponds to R8(Release 8), and its incremental version corresponds to a version number of R9(Release 9). The following three downlink physical control channels are defined in LTE: a Physical downlink Control Format Indicator Channel (PCFICH); a Physical Hybrid Automatic retransmission request Indicator Channel (PHICH); a Physical Downlink Control Channel (PDCCH).
The information carried by the PCFICH is used to indicate the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols for transmitting the PDCCH in one subframe, and is sent on the first OFDM symbol of the subframe, and the Frequency position of the first OFDM symbol is determined by the system downlink bandwidth and the cell Identity (ID).
The PHICH is used to carry acknowledgement/negative-acknowledgement (ACK/NACK) feedback information of uplink transmission data. The number and time-frequency position of the PHICH may be determined by a system message and a cell ID in a Physical Broadcast Channel (PBCH) of a downlink carrier where the PHICH is located.
The PDCCH is used for carrying Downlink Control Information (DCI), and includes: uplink and downlink scheduling information, and uplink power control information. The format of DCI (DCI format) is classified into the following: DCI format 0, DCI format 1A, DCI format 1B, DCI format 1C, DCI format1D, DCI format 2A, DCI format 3, and DCI format 3A; wherein:
the DCI format1, DCI format 1A, DCI format 1B, DCI format 1C, and DCI format1D are used for different modes of one PDSCH codeword scheduling;
the DCI format 2 and the DCI format 2A are used for different modes of space division multiplexing;
the DCI format 3 and the DCI format 3A are used for different modes of a Physical Uplink Control Channel (PUCCH) and a power Control command of the PUSCH.
Further, the information transmitted by the DCI Format 1A is as follows:
2 bits are used for TPC (Transmit power control) of a physical uplink control channel PUCCH;
in a radio frame, if a normal CP (Cyclic Prefix) is used, the first 1-3 OFDM symbols of the first slot of each subframe may carry physical resources of a physical downlink control channel PDCCH, and the remaining symbols may carry physical resources of a downlink shared channel PDSCH, as shown in fig. 3. For FDD subframe types, the UE monitors DCI format on PDCCH on subframe n on the corresponding serving cell, and then receives PDSCH data according to the corresponding PDCCH on subframe n + 4. For TDD subframe types, if the uplink and downlink configurations are configured to be 1-6, the UE monitors DCI format on PDCCH on subframe n on the corresponding serving cell, and then receives PDSCH data according to the corresponding PDCCH on subframe n + k, where k has the value shown in table 1:
TABLE 1
If the downlink configuration is configured to be 0, it will be indicated according to the UL index in the uplink DCI format that PDSCH data is received on n + k or n +7 subframes according to the corresponding PDCCH, where the value of k is as shown in table 1.
The UE receives PDSCH data transmissions as indicated by a PDCCH of a user equipment-Specific (UE-Specific) search space by a transmission mode (transmission mode) that is set to be based on:
mode 1: a single antenna port; port 0(Single-antenna port; port 0)
Mode 2: transmission diversity (Transmit diversity)
Mode 3: open-loop spatial multiplexing (Open-loop spatial multiplexing)
Mode 4: closed-loop spatial multiplexing (Closed-loop spatial multiplexing)
Mode 5: multi-user multiple input multiple output (Multi-user MIMO)
Mode 6: closed loop Rank 1 precoding (Closed-loop Rank 1 precoding)
Mode 7: a single antenna port; port 5(Single-antenna port; port 5)
Mode 8: double-layer transmission (dual-layer transmission); port 7 and port 8(Port 7 and8)
Mode 9: up to 8 layer transmission (up to 8 layer transmission), Port 7-Port 14
If the UE is configured by the higher layer to perform PDCCH decoding with Cyclic Redundancy Check (CRC) scrambled with Cell radio network Temporary identity (C-RNTI), the UE should decode the PDCCH and all related PDSCHs according to the corresponding combinations defined in table 2:
TABLE 2
Due to the demand for indoor hotspot coverage technology, LTE hotspot coverage has gradually become a focus of discussion, which can be generally referred to as LTE-LAN (LTE-Local Area Networks). However, in the indoor hotspot coverage scenario, how to send downlink control channel information and how to receive and monitor the PDCCH by the user equipment UE are still unsolved problems and inconvenience will be brought to practical application.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a related device for transmitting, receiving and transmitting downlink control information, so as to solve the problem of how to transmit, receive and monitor downlink control information in an indoor hotspot coverage scenario of LTE.
In order to solve the above problem, the present invention provides a method for transmitting downlink control information, including:
a base station transmits downlink control information to User Equipment (UE) through a Physical Downlink Control Channel (PDCCH) on a subframe, wherein the downlink control information carried by one PDCCH is used for scheduling a downlink shared channel (PDSCH) or an uplink shared channel (PUSCH) according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted over a plurality of consecutive subframes.
Preferably, the transmission method has the following characteristics:
when downlink control information carried by one PDCCH is used to schedule one channel,
the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries one resource block allocation message and a plurality of modulation coding mode block messages in the downlink control message and sends the downlink control message to the UE, and the channel adopts the same resource block allocation message and different modulation coding mode block messages; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and different modulation coding mode block information.
Preferably, the transmission method has the following characteristics:
when downlink control information carried by one PDCCH is used to schedule a plurality of channels,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous subframes corresponding to the same serving cell; or,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous service cells corresponding to the same subframe; or,
and the plurality of channels scheduled by the downlink control information are PDSCH and PUSCH transmitted on a plurality of subframes and a plurality of corresponding continuous serving cells.
Preferably, the transmission method has the following characteristics:
when downlink control information carried by one PDCCH is used to schedule a plurality of channels,
the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each PDSCH or PUSCH scheduled by the downlink control information adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each PDSCH or PUSCH scheduled by the downlink control information adopts the same resource block allocation information and different modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each PDSCH or PUSCH scheduled by the downlink control information adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each PDSCH or PUSCH scheduled by the downlink control information adopts different resource block allocation information and different modulation coding mode block information.
Preferably, the transmission method has the following characteristics:
if multi-antenna transmission is adopted, the modulation coding mode block information is two modulation coding mode information, otherwise, the modulation coding mode block information is one modulation coding mode information.
Preferably, the transmission method has the following characteristics:
the base station indicates the information of the subframe or the serving cell where the channel scheduled by the downlink control information is located in a bitmap manner, or indicates the information of the subframe or the serving cell where the channel scheduled by the downlink control information is located in a signaling manner.
In order to solve the above problem, the present invention provides a method for receiving downlink control information, including:
the UE monitors the PDCCH, receives downlink control information, and acquires scheduling information of one or more PDSCHs or acquires scheduling information of one or more PUSCHs.
Preferably, the receiving method has the following characteristics:
and the UE receives the downlink control information and acquires resource block allocation information and modulation coding mode block information carried by the downlink control information, so that the resource block allocation condition and the modulation coding mode adopted by a channel scheduled by the downlink control information are acquired.
In order to solve the above problem, the present invention provides a method for transmitting downlink control information, including:
a base station sends downlink control information to UE through a PDCCH on a subframe; wherein, the downlink control information carried by one PDCCH is used for scheduling PDSCH or PUSCH according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted on a plurality of consecutive subframes;
the UE monitors the PDCCH, receives downlink control information, and acquires scheduling information of one or more PDSCHs or acquires scheduling information of one or more PUSCHs.
In order to solve the above problems, the present invention provides a downlink control information transmitting apparatus,
the transmitting device is used for transmitting downlink control information to the UE through the PDCCH on the subframe;
wherein, the downlink control information carried by one PDCCH is used for scheduling PDSCH or PUSCH according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted over a plurality of consecutive subframes.
In order to solve the above problem, the present invention provides a receiving apparatus for downlink control information, which includes a monitoring module and a receiving module, wherein,
the monitoring module is used for monitoring the PDCCH;
the receiving module is used for receiving the downlink control information according to the PDCCH monitored by the monitoring module, and acquiring the scheduling information of one or more PDSCHs or acquiring the scheduling information of one or more PUSCHs.
By the method and the device, the downlink control information is transmitted, received and monitored in an indoor hot spot coverage scene of LTE, and low-overhead, high-speed and high-reliability transmission can be realized.
Drawings
Fig. 1 is a diagram illustrating a frame structure of an FDD mode in the prior art;
fig. 2 is a diagram illustrating a frame structure of a TDD mode in the prior art;
fig. 3 is a schematic diagram of positions of a downlink control channel and a downlink shared channel in a conventional CP in the prior art;
fig. 4 is a flowchart of a method for transmitting downlink control channel information according to an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
As shown in fig. 4, the embodiment of the present invention may be applied to an indoor hotspot coverage scenario of LTE, and the transmission of the downlink control channel information includes the following steps:
Wherein, the downlink control information carried by one PDCCH is used for scheduling a downlink shared channel PDSCH or an uplink shared channel PUSCH according to one or more of the following manners:
(1) scheduling a Plurality of Downlink Shared Channels (PDSCHs);
(2) scheduling a Plurality of Uplink Shared Channels (PUSCHs);
(3) scheduling a downlink shared channel (PDSCH), wherein the PDSCH is transmitted on a plurality of continuous subframes;
(4) and scheduling an uplink shared channel (PUSCH), wherein the PUSCH is transmitted on a plurality of continuous subframes.
A. When downlink control information carried by one PDCCH is used for scheduling one channel:
the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries one resource block allocation message and a plurality of modulation coding mode block messages in the downlink control message and sends the downlink control message to the UE, and the channel adopts the same resource block allocation message and different modulation coding mode block messages; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and different modulation coding mode block information.
B. When downlink control information carried by one PDCCH is used to schedule a plurality of channels,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous subframes corresponding to the same serving cell; or,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous service cells corresponding to the same subframe; or,
and the plurality of channels scheduled by the downlink control information are PDSCH and PUSCH transmitted on a plurality of subframes and a plurality of corresponding continuous serving cells.
In addition, the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each downlink shared channel PDSCH or uplink shared channel PUSCH scheduled by the downlink control information adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each downlink shared channel PDSCH or uplink shared channel PUSCH scheduled by the downlink control information adopts the same resource block allocation information and different modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each downlink shared channel PDSCH or uplink shared channel PUSCH scheduled by the downlink control information adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each downlink shared channel PDSCH or uplink shared channel PUSCH scheduled by the downlink control information adopts different resource block allocation information and different modulation coding mode block information.
If multi-antenna transmission is adopted, the modulation coding mode block information is two modulation coding mode information, otherwise, the modulation coding mode block information is one modulation coding mode information.
In this step, the base station may indicate, in a bitmap (bitmap) manner, information of a subframe or a serving cell in which the channel scheduled by the downlink control information is located, or may indicate, in a signaling manner, information of a subframe or a serving cell in which the channel scheduled by the downlink control information is located.
In step 402, the UE monitors the PDCCH, receives downlink control information, and learns scheduling information of one or more PDSCHs or learns scheduling information of one or more PUSCHs.
In step 402, the UE receives the downlink control information, and obtains resource block allocation information and modulation and coding scheme block information carried in the downlink control information, so as to obtain that a channel scheduled by the downlink control information adopts a resource block allocation condition and a modulation and coding scheme.
Correspondingly, the sending device of the downlink control information of the embodiment of the invention is applied to a base station, and the sending device is used for sending the downlink control information to UE on a subframe through a physical downlink control channel PDCCH;
wherein, the downlink control information carried by one PDCCH is used for scheduling a downlink shared channel PDSCH or an uplink shared channel PUSCH according to one or more of the following manners:
(1) scheduling a Plurality of Downlink Shared Channels (PDSCHs);
(2) scheduling a Plurality of Uplink Shared Channels (PUSCHs);
(3) scheduling a downlink shared channel (PDSCH), wherein the PDSCH is transmitted on a plurality of continuous subframes;
(4) and scheduling an uplink shared channel (PUSCH), wherein the PUSCH is transmitted on a plurality of continuous subframes.
The downlink control information receiving device of the embodiment of the invention is applied to UE and comprises a monitoring module and a receiving module, wherein,
the monitoring module is used for monitoring the PDCCH;
the receiving module is used for receiving the downlink control information according to the PDCCH monitored by the monitoring module, and acquiring the scheduling information of one or more PDSCHs or acquiring the scheduling information of one or more PUSCHs.
The receiving module may be further configured to receive downlink control information according to the PDCCH monitored by the monitoring module, and obtain scheduling information of one or more PDSCHs or obtain scheduling information of one or more PUSCHs.
The invention is further illustrated below in specific application examples.
Application example 1
In an LTE or LTE-advanced indoor hotspot coverage scenario, which may also be referred to as an LTE-LAN scenario, a subframe in which a PDCCH is transmitted schedules PDSCH or PUSCH resources on other subframes or other serving cells (serving cells, which may also be referred to as component carriers), the following configurations are provided:
configuring a first step:
the PDCCH on the subframe may continuously schedule PDSCH or PUSCH resources on n subframes including itself.
And n is a positive integer greater than 1.
Configuring a second step:
the PDCCH on the subframe may schedule PDSCH or PUSCH resources of other n serving cells including its own serving cell on this subframe.
And n is a positive integer greater than 1 and is informed by high-layer signaling.
The configuration is three:
the PDCCH on the subframe may schedule PDSCH or PUSCH resources of m other serving cells including its own serving cell on the subframe, and may continuously schedule PDSCH or PUSCH resources on n subframes including the subframe.
The m is a positive integer larger than 1 and is informed by high-layer signaling; and n is a positive integer greater than 1.
Application example two
And newly defining a transmission mode for the user terminal UE of the LTE-LAN network to perform corresponding PDCCH monitoring, receive PDSCH data and send PUSCH data.
When a user terminal UE accesses an LTE-LAN network, the UE is set to a transmission mode X through a semi-static (semi-static) higher layer signaling, and the preferred value of the X is 10. The transmission mode corresponds to DCI format Y, and the preferred value of Y is 5, which is used to indicate transmission of at most 8 layers.
For DCI format Y, the information transmitted in the corresponding DCI may be:
the first method is as follows:
the DCI includes one resource block allocation information and one modulation and coding scheme information, which is used to indicate PDSCH resources or PUSCH resources scheduled in one or more serving cells and/or one or more subframes, that is, the same resource block allocation information and modulation and coding scheme are used in each serving cell and/or each subframe.
The second method comprises the following steps:
the DCI includes one resource block allocation information and multiple modulation and coding scheme information, which is used to indicate PDSCH resources or PUSCH resources scheduled on one or more serving cells and/or one or more subframes, that is, the same resource block allocation information and different modulation and coding schemes are used on each serving cell and/or each subframe.
The multiple pieces of modulation and coding scheme information can distinguish different subframes and/or different modulation and coding schemes of the serving cell in a bitmap (bitmap) manner. For example, two consecutive subframes, each subframe is configured with 4 serving cells, 8 bits are used to represent the 8 states, and the 8 states are corresponding subframe indexes and serving cell indexes of a plurality of modulation coding schemes in DCI. Such as: the 8 states are 11000100, then the three modulation and coding scheme information in DCI format Y will be used for the first two serving cells in the first subframe and the second serving cell in the second subframe, respectively.
The third method comprises the following steps:
the DCI includes a plurality of resource block allocation information and a modulation and coding scheme information, which is used to indicate PDSCH resources or PUSCH resources scheduled in one or more serving cells and/or one or more subframes, that is, different resource block allocation information and the same modulation and coding scheme are used in each serving cell and/or each subframe.
The resource block allocation information can distinguish different sub-frames and/or different resource block allocation conditions of the serving cell in a bitmap (bitmap) mode. For example, two consecutive subframes, each subframe is configured with 4 serving cells, 8 bits are adopted to represent the 8 states, and the 8 states are corresponding subframe indexes and serving cell indexes of the multiple resource block allocation information in the DCI format Y. Such as: the 8 states are 11000100, then the three resource block allocation information in DCI format Y will be used for the first two serving cells in the first subframe and the second serving cell in the second subframe, respectively.
The method is as follows:
the DCI includes a plurality of resource block allocation information and a plurality of modulation and coding scheme information, which are used to indicate PDSCH resources or PUSCH resources scheduled on one or more serving cells and/or one or more subframes, that is, each serving cell and/or each subframe adopts different resource block allocation information and different modulation and coding schemes.
The specific implementation is the same as in the second and third modes.
Application example three
Two transmission modes are newly defined and used for carrying out corresponding PDCCH monitoring and receiving PDSCH data and sending PUSCH data by the user terminal UE of the LTE-LAN network.
When a user terminal UE accesses an LTE-LAN network, the UE is set to transmission modes X1 and X2 through semi-static (semi-static) of high-layer signaling, and the preferred values of X1 and X2 are 10 and 11. The transmission mode corresponds to DCI format Y1 and DCI format Y2, and the preferred values of Y1 and Y2 are 5 and 6, and are used for indicating transmission of at most 8 layers.
When the UE is semi-statically set to transmission mode X1 through higher layer signaling, its corresponding DCI format Y1 is only used to schedule PDSCH resources on its own subframe and serving cell.
When the UE is set to transmission mode X2 semi-statically through higher layer signaling, its corresponding DCI format Y2 method for scheduling PDSCH resources is as above application example two.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method for sending downlink control information comprises the following steps:
a base station transmits downlink control information to User Equipment (UE) through a Physical Downlink Control Channel (PDCCH) on a subframe, wherein the downlink control information carried by one PDCCH is used for scheduling a downlink shared channel (PDSCH) or an uplink shared channel (PUSCH) according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted over a plurality of consecutive subframes.
2. The transmission method of claim 1,
when downlink control information carried by one PDCCH is used to schedule one channel,
the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries one resource block allocation message and a plurality of modulation coding mode block messages in the downlink control message and sends the downlink control message to the UE, and the channel adopts the same resource block allocation message and different modulation coding mode block messages; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and the channel adopts different resource block allocation information and different modulation coding mode block information.
3. The transmission method of claim 1,
when downlink control information carried by one PDCCH is used to schedule a plurality of channels,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous subframes corresponding to the same serving cell; or,
a plurality of channels scheduled by the downlink control information are transmitted on a plurality of continuous service cells corresponding to the same subframe; or,
and the plurality of channels scheduled by the downlink control information are PDSCH and PUSCH transmitted on a plurality of subframes and a plurality of corresponding continuous serving cells.
4. The transmission method of claim 1,
when downlink control information carried by one PDCCH is used to schedule a plurality of channels,
the base station carries resource block allocation information and modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each PDSCH or PUSCH scheduled by the downlink control information adopts the same resource block allocation information and modulation coding mode block information; or,
the base station carries resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, and each PDSCH or PUSCH scheduled by the downlink control information adopts the same resource block allocation information and different modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each PDSCH or PUSCH scheduled by the downlink control information adopts different resource block allocation information and the same modulation coding mode block information; or,
the base station carries a plurality of resource block allocation information and a plurality of modulation coding mode block information in the downlink control information and sends the downlink control information to the UE, wherein each PDSCH or PUSCH scheduled by the downlink control information adopts different resource block allocation information and different modulation coding mode block information.
5. The transmission method according to claim 2 or 4,
if multi-antenna transmission is adopted, the modulation coding mode block information is two modulation coding mode information, otherwise, the modulation coding mode block information is one modulation coding mode information.
6. The transmission method according to claim 2 or 4,
the base station indicates the information of the subframe or the serving cell where the channel scheduled by the downlink control information is located in a bitmap manner, or indicates the information of the subframe or the serving cell where the channel scheduled by the downlink control information is located in a signaling manner.
7. A method for receiving downlink control information comprises the following steps:
the UE monitors the PDCCH, receives downlink control information, and acquires scheduling information of one or more PDSCHs or acquires scheduling information of one or more PUSCHs.
8. The receiving method of claim 7,
and the UE receives the downlink control information and acquires resource block allocation information and modulation coding mode block information carried by the downlink control information, so that the resource block allocation condition and the modulation coding mode adopted by a channel scheduled by the downlink control information are acquired.
9. A method for transmitting downlink control information includes:
a base station sends downlink control information to UE through a PDCCH on a subframe; wherein, the downlink control information carried by one PDCCH is used for scheduling PDSCH or PUSCH according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted on a plurality of consecutive subframes;
the UE monitors the PDCCH, receives downlink control information, and acquires scheduling information of one or more PDSCHs or acquires scheduling information of one or more PUSCHs.
10. A transmission apparatus of downlink control information is characterized in that,
the transmitting device is used for transmitting downlink control information to the UE through the PDCCH on the subframe;
wherein, the downlink control information carried by one PDCCH is used for scheduling PDSCH or PUSCH according to one or more of the following manners:
(1) scheduling a plurality of PDSCHs;
(2) scheduling a plurality of PUSCHs;
(3) scheduling one PDSCH, the PDSCH being transmitted over a plurality of consecutive subframes;
(4) scheduling one PUSCH, the PUSCH transmitted over a plurality of consecutive subframes.
11. The device for receiving the downlink control information is characterized by comprising a monitoring module and a receiving module, wherein,
the monitoring module is used for monitoring the PDCCH;
the receiving module is used for receiving the downlink control information according to the PDCCH monitored by the monitoring module, and acquiring the scheduling information of one or more PDSCHs or acquiring the scheduling information of one or more PUSCHs.
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