CN109964416B

CN109964416B - Method and device for user equipment and base station for multi-antenna transmission

Info

Publication number: CN109964416B
Application number: CN201780065831.9A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2022-06-17
Anticipated expiration: 2037-01-26
Also published as: CN109964416A; CN114944857A; CN114944852A; WO2018137228A1

Abstract

The invention discloses a method and a device in user equipment and a base station for multi-antenna transmission. As an embodiment, the UE monitors a first signaling in a first time window and a second signaling in a second time window; the first wireless signal is operated. The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, and at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. The operation is a reception or the operation is a transmission. The invention can reduce the blind detection times of the UE and ensure the transmission quality.

Description

Method and device for user equipment and base station for multi-antenna transmission

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus in a wireless communication system supporting multi-antenna transmission.

Background

According to the conclusion of 3GPP (3rd Generation Partner Project) RAN1(Radio Access Network) #86bis conference, uplink multi-antenna transmission will support a frequency selective precoding (frqxc) scheme.

In order to support frequency selective precoding in an uplink multi-antenna transmission mode based on a codebook, a base station needs to indicate a transmission precoding matrix used on each subband in a scheduling signaling, which greatly increases the overhead of DCI (Downlink Control Information). How to reasonably design scheduling signaling to reduce the signaling overhead of frequency selective precoding is a problem to be solved.

Disclosure of Invention

The inventor finds through research that, in order to reduce the control signaling overhead required for indicating the transmission precoding matrix, the transmission precoding matrix can be decomposed into a product of two matrices, the first matrix is non-frequency selective (same on all subcarriers) and slowly changes in a long time, can be updated in a longer period, and is quantized by more bits; the second matrix is frequency selective (different from one sub-band to another) and fast-changing, needs to be updated with a shorter period, but can be quantized with fewer bits. Therefore, two matrixes with different update periods are indicated by different quantization bit numbers, the overall overhead of signaling for the uplink precoding matrix is greatly reduced, and the performance of uplink precoding can be ensured.

Since the update speed of the first matrix is slow, it need not be present in all DCIs. The payload size of DCI including the first matrix may be larger than the payload size of DCI not including the first matrix, which results in two different DCI payload sizes. Different DCI payload sizes may cause a UE (User Equipment) to need more blind detection times when monitoring DCI, which increases the complexity of blind detection and is desirably avoided in system design.

In view of the above, the present application discloses a solution. It should be noted that, although the initial motivation of the present application is for uplink precoding, the present application is also applicable to downlink precoding. Without conflict, embodiments and features in embodiments in the UE of the present application may apply to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in UE of multi-antenna transmission, wherein, the method comprises the following steps:

-step a. monitoring the first signalling in a first time window and the second signalling in a second time window;

-step b.

Wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain }, the second domain of the second signaling being used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The operation is a reception or the operation is a transmission.

As an embodiment, a payload size of the first signaling and a payload size of the second signaling are different.

As an embodiment, the payload size is the number of all bits in the corresponding signaling.

As a sub-implementation of the above embodiment, the all bits include { information bits, CRC (Cyclic Redundancy Check) bits }.

As a sub-implementation of the above embodiment, the all bits include { information bits, CRC (Cyclic Redundancy Check) bits, parity bits }.

As a sub-implementation of the above embodiment, the all bits comprise { information bits, parity bits }.

As a sub-embodiment of the above embodiment, the all bits comprise Padding (Padding) bits.

As an embodiment, the payload size is the number of all information bits in the corresponding signaling.

As an example, the above method has a benefit that the first domain and the second domain may correspond to a non-frequency selective, slowly varying portion and a frequency selective, rapidly varying portion, respectively, of a channel experienced by the first wireless signal. By separately indicating the first domain and the second domain, the respective characteristics of the two parts can be adapted more flexibly. The non-frequency selective, slowly varying part may be updated with a longer period, so that the first domain need not be present in the second signaling, which reduces the payload size of the second signaling, thereby reducing the overall signaling overhead.

As an example, the monitoring means: and the UE executes BD (Blind Decoding) on the corresponding signaling according to the load size of the corresponding signaling.

As an embodiment, another benefit of the above method is that the first signaling only occurs in the first time window and the second signaling only occurs in the second time window, so the UE only needs to monitor the first signaling or the second signaling with one payload size (payload size) at any one time, reducing the processing complexity of the UE.

As an embodiment, the number of bits in the first domain is greater than the number of bits in the second domain.

As an embodiment, the number of bits in the first domain is smaller than the number of bits in the second domain.

As an embodiment, the number of bits in the first domain is equal to the number of bits in the second domain.

As an embodiment, the first signaling includes K fields other than the first field and the second field, the second signaling includes the K fields, and K is a positive integer.

As an embodiment, any one of the K fields includes one or more of a { resource allocation field, an MCS (Modulation and Coding Scheme) field, an RV (Redundancy Version) field, an NDI (New Data Indicator) field, an HARQ (Hybrid Automatic Repeat reQuest) process number field, and a transmit power control field }.

As an embodiment, the antenna ports are formed by antenna Virtualization (Virtualization), and mapping coefficients of the plurality of physical antennas to the antenna ports constitute beamforming vectors.

As an embodiment, a given domain being used to form a given antenna port refers to: the given field is used to generate a beamforming vector for the given antenna port. The given domain is the first domain or the second domain.

As a sub-implementation of the above embodiment, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, and the given domain is used to generate at least one of the analog beamforming matrix corresponding to the given antenna port and the digital beamforming vector corresponding to the given antenna port.

As a sub-embodiment of the foregoing embodiment, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the first field is used for generating the analog beamforming matrix corresponding to the L antenna ports, and the second field is used for generating the digital beamforming vector corresponding to the L antenna ports.

As an embodiment, a given domain being used to form a given antenna port refers to: the given field indicates a beamforming vector corresponding to the given antenna port. The given domain is the first domain or the second domain.

As a sub-implementation of the above embodiment, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, and the given field indicates at least one of the analog beamforming matrix corresponding to the given antenna port and the digital beamforming vector corresponding to the given antenna port.

As a sub-implementation of the above embodiment, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the first field indicates the analog beamforming matrices corresponding to the L antenna ports, and the second field indicates the digital beamforming vectors corresponding to the L antenna ports.

As an embodiment, a payload size (payload size) of the first signaling is larger than a payload size of the second signaling.

As an embodiment, a payload size (payload size) of the first signaling is smaller than a payload size of the second signaling.

As an embodiment, a payload size (payload size) of the first signaling is equal to a payload size of the second signaling.

As an embodiment, the first signaling and the second signaling are dynamic signaling respectively.

As an embodiment, the first signaling and the second signaling are respectively a DCI (Downlink Control Information) for a Downlink Grant (Downlink Grant), and the operation is receiving.

As an embodiment, the first signaling and the second signaling are each DCI for an Uplink Grant (Uplink Grant), and the operation is transmission.

As an embodiment, the first signaling carries scheduling information of the first wireless signal.

As an embodiment, the second signaling carries scheduling information of the first wireless signal.

As a sub-embodiment of the foregoing embodiment, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As an embodiment, the first signaling and the second signaling are respectively transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the Downlink Physical layer Control Channel is a PDCCH (Physical Downlink Control Channel).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an sPDCCH (short PDCCH).

For one embodiment, the first wireless signal is transmitted on a physical layer data channel.

As a sub-embodiment of the above embodiment, the Physical layer data Channel is a PDSCH (Physical Downlink Shared Channel), and the operation is receiving.

As a sub-embodiment of the above embodiment, the physical layer data channel is sPDSCH (short PDSCH), and the operation is reception.

As a sub-embodiment of the above embodiment, the Physical layer data Channel is a PUSCH (Physical Uplink Shared Channel), and the operation is transmission.

As a sub-embodiment of the above embodiment, the physical layer data channel is a short PUSCH (short PUSCH), and the operation is transmission.

As one embodiment, the first field includes a first TPMI (Transmitted Precoding Matrix Indicator).

As a sub-embodiment of the above embodiment, the first TPMI is a wideband TPMI, and the first TPMI is used to determine a precoding matrix of the first wireless signal on all subcarriers occupied by the first wireless signal.

As one embodiment, the second field includes M second TPMIs, where M is a positive integer.

As a sub-embodiment of the above embodiment, the second TPMI is a sub-band (sub-band) TPMI, the frequency resource occupied by the first wireless signal is divided into a plurality of frequency regions, and the second TPMI is used for determining the precoding matrix of the first wireless signal only in a part of the frequency regions.

As a sub-embodiment of the above embodiment, the K is equal to the M.

As a sub-embodiment of the above embodiment, the K is not equal to the M.

As one embodiment, the first TPMI includes a larger number of bits than the second TPMI includes.

As an embodiment, the first TPMI includes a number of bits equal to a number of bits included in the second TPMI.

As one embodiment, the first TPMI includes a smaller number of bits than the second TPMI.

As an embodiment, the transmitting of the first wireless signal by the L antenna ports respectively means: the first wireless signal includes L sub-signals, which are transmitted by the L antenna ports, respectively.

As an embodiment, the monitoring refers to receiving based on blind detection, that is, receiving a signal in a given time window and performing a decoding operation, and if the decoding is determined to be correct according to the check bits, the receiving is determined to be successful, otherwise, the receiving is determined to be failed. The given time window is either the first time window or the second time window.

As a sub-embodiment of the foregoing embodiment, the UE performs blind detection with the payload size of the first signaling in the first time window, and the UE performs blind detection with the payload size of the second signaling in the second time window.

As an example, the above method has the benefits of: in a given time window, the UE only needs to perform blind detection with one load size, so that the increase of the complexity of blind detection caused by the difference of the load sizes of the first signaling and the second signaling is avoided.

As one embodiment, the first time window includes T1 time units, the second time window includes T2 time units, and the T1 and the T2 are positive integers, respectively.

As a sub-embodiment of the above embodiment, the time unit is a subframe.

As a sub-embodiment of the above embodiment, the time unit is 1 ms.

As a sub-embodiment of the above embodiment, the T1 time units are discontinuous in the time domain.

As a sub-embodiment of the above embodiment, the T2 time units are discontinuous in the time domain.

As a sub-embodiment of the above embodiment, the T1 is greater than the T2.

As a sub-embodiment of the above embodiment, the T1 is equal to the T2.

As a sub-embodiment of the above embodiment, the T1 is less than the T2.

Specifically, according to an aspect of the present application, the operation is transmission, and the first wireless signal includes L reference signals, and the L reference signals are respectively transmitted by the L antenna ports.

As an embodiment, the first signaling indicates RS port information of the L reference signals.

As an embodiment, the second signaling indicates RS port information of the L reference signals.

As a sub-embodiment of the foregoing embodiment, the RS port information includes at least one of { occupied time domain resource, occupied frequency domain resource, RS pattern (pattern), RS sequence, CS (Cyclic Shift, Cyclic Shift amount), OCC (Orthogonal Code) }.

As one embodiment, the L Reference Signals include DMRSs (DeModulation Reference Signals).

As an embodiment, any one of the L reference signals adopts a DMRS pattern (pattern).

Specifically, according to an aspect of the present application, the step B further includes the steps of:

step B0. receives Q reference signals.

Wherein the operation is reception, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer.

As an embodiment, the first signaling indicates RS port information of the Q reference signals.

As an embodiment, the second signaling indicates RS port information of the Q reference signals.

As an embodiment, the Q reference signals comprise DMRSs.

As an embodiment, any one of the Q reference signals adopts a DMRS pattern (pattern).

For one embodiment, the Q Reference Signals include CSI-RS (Channel State Information Reference Signals).

As an embodiment, any one of the Q reference signals adopts a CSI-RS pattern.

As an embodiment, the beamforming vectors corresponding to any one of the L antenna ports and any one of the Q antenna ports are different.

For one embodiment, the first field is used to generate the beamforming vectors corresponding to the Q antenna ports.

As an embodiment, the first field indicates the beamforming vectors corresponding to the Q antenna ports.

As an embodiment, the second domain and the measurement based on the Q reference signals are used to determine channel parameters corresponding to the L antenna ports.

As a sub-embodiment of the above embodiment, the Channel parameter is CIR (Channel Impulse Response).

Specifically, according to one aspect of the present application, the first field is used to determine a first matrix, and the first matrix is used to determine a precoding matrix of the first wireless signal. The second domain is used to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

As an embodiment, the second matrix is used to determine a precoding matrix of the first wireless signal over the corresponding frequency region.

As an embodiment, said P is equal to said M.

As one embodiment, P is greater than M.

As an embodiment, the first signaling is used to determine the M frequency regions from the P frequency regions.

As an embodiment, the first signaling indicates an index of each of the M frequency regions in the P frequency regions.

As an embodiment, the second signaling is used to determine the M frequency regions from the P frequency regions.

As an embodiment, the second signaling indicates an index of each of the M frequency regions in the P frequency regions.

As an embodiment, the frequency region includes a positive integer number of consecutive subcarriers.

As an embodiment, the number of subcarriers included in any two of the frequency regions is the same.

As an embodiment, there are at least two different frequency regions comprising different numbers of subcarriers.

As an embodiment, the P frequency regions are mutually orthogonal two by two in the frequency domain, i.e. there is no subcarrier belonging to two different frequency regions at the same time.

As an embodiment, the precoding matrix of the first radio signal is the same on different subcarriers of the same frequency region.

As an embodiment, the precoding matrix of the first wireless signal is different over different of the frequency regions.

As an embodiment, a precoding matrix of the first wireless signal on any one of the M frequency regions is obtained by a product of the first matrix and the corresponding second matrix.

As an embodiment, the L antenna ports are divided into P antenna port groups, the antenna port groups include R antenna ports, the number of columns of the second matrix is equal to R, and the multiplication of P by R is equal to L. The P antenna port groups correspond to the P frequency regions one by one, and a wireless signal sent by any one antenna port group does not occupy frequency resources outside the corresponding frequency region.

As a sub-embodiment of the above-mentioned embodiments, the first wireless signal is transmitted by the corresponding antenna port group on the frequency region.

As a sub-embodiment of the foregoing embodiment, M antenna port groups in the P antenna port groups correspond to M second matrices one to one, the first matrix and the second matrix are multiplied to obtain a reference matrix, and R columns in the reference matrix are the beamforming vectors of R antenna ports included in the corresponding antenna port groups, respectively.

As an example, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector.

As a sub-embodiment of the above-mentioned embodiments, the analog beamforming matrices corresponding to the L antenna ports are the same.

As a sub-embodiment of the foregoing embodiment, the analog beamforming matrices corresponding to the L antenna ports are the first matrices, respectively.

As a sub-embodiment of the foregoing embodiment, the antenna ports in different antenna port groups correspond to different digital beamforming vectors.

As a sub-embodiment of the above embodiment, the columns in the second matrix constitute the digital beamforming vectors for the antenna ports of the corresponding antenna port group.

As an embodiment, the number of columns of the first matrix is equal to the Q, the columns of the first matrix being the beamforming vectors for the Q antenna ports, respectively.

As one embodiment, Q is greater than or equal to L divided by P.

As one embodiment, the first matrix is one of a first set of candidate matrices, the first field includes an index of the first matrix in the first set of candidate matrices, and the first set of candidate matrices includes a positive integer number of matrices.

As a sub-embodiment of the above embodiment, the index of the first matrix in the first candidate matrix set is the first TPMI.

As an embodiment, the second matrix is one of a second set of candidate matrices, the second field includes an index of each of the M second matrices in the second set of candidate matrices, and the second set of candidate matrices includes a positive integer number of matrices.

As a sub-embodiment of the above embodiment, each of the indexes of the second matrices in the second candidate matrix set in the M second matrices is a second TPMI.

As an embodiment, the first set of candidate matrices comprises a larger number of matrices than the second set of candidate matrices.

As an embodiment, the first set of candidate matrices comprises a number of matrices equal to the number of matrices comprised by the second set of candidate matrices.

As an embodiment, the first set of candidate matrices comprises a smaller number of matrices than the second set of candidate matrices.

As an embodiment, the measurements based on the Q reference signals and the M second matrices are used to determine channel parameters corresponding to the M antenna port groups.

As a sub-embodiment of the foregoing embodiment, the channel parameters corresponding to the M antenna port groups constitute M target channel matrices, measurements based on the Q reference signals are used to determine reference channel matrices, and the reference channel matrices are multiplied by the M second matrices, respectively, to obtain the M target channel matrices.

As an embodiment, the second domain is indicated by the first signaling.

As an embodiment, the second domain is indicated by the second signaling.

Specifically, according to an aspect of the present application, the step a further includes the steps of:

step A0. receives the downstream information.

Wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

As an embodiment, the downlink information is carried by higher layer signaling.

As a sub-embodiment of the foregoing embodiment, the downlink information is carried by a Radio Resource Control (RRC) signaling.

As an embodiment, the downlink information is configured semi-statically.

As an embodiment, the downlink information is cell-common.

As an embodiment, the downlink information is UE-specific (UE-specific).

Specifically, according to an aspect of the present application, the method further includes the steps of:

-step c.

Wherein measurements based on the second reference signal are used to determine at least one of { the first domain, the second domain }.

As an embodiment, the second Reference signal includes SRS (Sounding Reference Signals), and the operation is transmitting.

For one embodiment, the second reference signal comprises CSI-RS, and the operation is receiving.

As one embodiment, the second reference signal includes a DMRS. The operation is receiving; or the operation is a transmission.

As an embodiment, measurements based on the second reference signals are used to determine P1 first channel matrices, the P1 first channel matrices are used to determine at least one of the first domain, the second domain, the P1 is a positive integer.

As an embodiment, frequency domain resources occupied by the second reference signal are divided into P1 frequency regions, the second reference signal is respectively transmitted by positive integer number of antenna ports, and measurement based on the second reference signal is used to determine channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions, and the channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions respectively constitute the P1 first channel matrices.

As an embodiment, the P1 first channel matrices are used to generate the first matrix, which is one of the first set of candidate matrices, the first field including an index of the first matrix in the first set of candidate matrices.

As a sub-embodiment of the above embodiment, an average value of the P1 first channel matrices is used to generate the first matrix.

As an embodiment, M1 of the P1 first channel matrices are used to generate M1 second matrices, respectively, the M1 second matrices are subsets of the M second matrices, and the M1 is a positive integer less than or equal to M. The second matrix is one of the second set of candidate matrices, and the second field includes an index of each of the M second matrices in the second set of candidate matrices.

As one example, the P1 is greater than the P.

As one example, the P1 is equal to the P.

As one example, the P1 is less than the P.

As an embodiment, the rank of the first channel matrix is greater than or equal to the L divided by the P.

As an embodiment, the rank of the first channel matrix is greater than or equal to the Q.

step d. sending uplink information.

Wherein the uplink information is used to determine at least one of { the first domain, the second domain }, the operation being reception.

As an embodiment, the uplink information indicates at least one of { the first domain, the second domain }.

As an embodiment, the uplink information indicates at least one of { an index of the first matrix in the first candidate matrix set, and an index of each of the M3 second matrices in the second candidate matrix set }. The M3 second matrices are a subset of the M second matrices, the M3 is a positive integer less than or equal to the M.

As an embodiment, measurements based on the second reference signals are used to determine the P1 first channel matrices, the P1 first channel matrices are used to generate the uplink information.

As an embodiment, the uplink information includes quantized information of P2 first channel matrices, the P2 first channel matrices are subsets of the P1 first channel matrices, and the P2 is a positive integer smaller than or equal to the P1.

As an embodiment, the uplink information includes an index of each of P2 first quantization matrices in a third candidate matrix set, the P2 first quantization matrices are quantized by the P2 first channel matrices, respectively, the first quantization matrix is one of the third candidate matrix set, and the third candidate matrix set includes a positive integer number of matrices.

As an embodiment, the P2 first quantization matrices are used to generate at least one of { the first domain, the second domain }.

As an embodiment, the P2 first quantization matrices are used to generate the first matrix, which is one of the first set of candidate matrices, the first field including an index of the first matrix in the first set of candidate matrices.

As a sub-embodiment of the above embodiment, an average value of the P2 first quantization matrices is used to generate the first matrix.

As an embodiment, M2 of the P2 first quantization matrices are used to generate M2 second matrices, respectively, the M2 second matrices are subsets of the M second matrices, and the M2 is a positive integer less than or equal to M. The second matrix is one of the second set of candidate matrices, the second field including an index of each of the M second matrices in the second set of candidate matrices.

As an embodiment, the uplink information includes S index groups and S parameter groups, the S index groups are used to determine S vector groups, the S vector groups and the S parameter groups are in one-to-one correspondence, the S vector groups and the S parameter groups are respectively used to generate S synthetic vectors, and the S synthetic vectors are used to determine the P2 first quantization matrices. The S is a positive integer greater than or equal to the P2.

As a sub-implementation of the above embodiment, the vectors in the S vector groups belong to a candidate vector set, and the candidate vector set comprises a positive integer number of vectors.

As a sub-embodiment of the above embodiment, a given synthetic vector is obtained by weighting and adding vectors in a given vector group by parameters in a given parameter group, wherein the given synthetic vector is any one of the S synthetic vectors, the given vector group is the vector group in the S vector groups used for generating the given synthetic vector, and the given parameter group is the parameter group in the S parameter groups used for generating the given synthetic vector.

As a sub-implementation of the above embodiment, the S synthetic vectors are divided into P2 synthetic vector groups, each of the synthetic vector groups includes a positive integer of the synthetic vectors, the P2 synthetic vector groups are in one-to-one correspondence with the P2 first quantization matrices, and the first quantization matrices are formed by the synthetic vectors in the corresponding synthetic vector groups as column vectors.

As a sub-embodiment of the foregoing embodiment, one of the vector groups includes S1 vectors, and the corresponding coefficient group includes S1-1 coefficients.

As a sub-embodiment of the above embodiment, one of the vector groups includes S1 vectors, and the corresponding coefficient group includes S1 coefficients.

As an embodiment, the Uplink Information includes UCI (Uplink Control Information).

As an embodiment, the uplink information is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the Uplink Physical layer Control Channel is a PUCCH (Physical Uplink Control Channel).

As an example, the uplink information is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of the foregoing embodiment, the Uplink Physical layer data Channel is a PUSCH (Physical Uplink Shared Channel).

The application discloses a method used in a base station for multi-antenna transmission, which comprises the following steps:

-step a. sending a first signalling in a first time window and a second signalling in a second time window;

-step b.

Wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The performing is transmitting or the performing is receiving.

As an embodiment, the first signaling and the second signaling are DCI for Downlink Grant (Downlink Grant), respectively, and the performing is transmitting.

As an embodiment, the first signaling and the second signaling are DCI for Uplink Grant (Uplink Grant), and the performing is receiving.

As a sub-embodiment of the foregoing embodiment, the Physical layer data Channel is a PDSCH (Physical Downlink Shared Channel), and the performing is transmitting.

As a sub-embodiment of the above embodiment, the physical layer data channel is sPDSCH (short PDSCH), and the performing is transmitting.

As a sub-embodiment of the above embodiment, the Physical layer data Channel is a PUSCH (Physical Uplink Shared Channel), and the performing is receiving.

As a sub-embodiment of the above embodiment, the physical layer data channel is a short PUSCH (short PUSCH), and the performing is receiving.

Specifically, according to an aspect of the present application, the performing is receiving, and the first wireless signal includes L reference signals, and the L reference signals are respectively transmitted by the L antenna ports.

step B0. sends Q reference signals.

Wherein the performing is transmitting, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer.

Specifically, according to one aspect of the present application, the first field is used to determine a first matrix, and the first matrix is used to determine a precoding matrix of the first wireless signal. The second domain is used to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in a one-to-one correspondence with M of the P frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

step A0. sends downstream information.

-step c.

As an embodiment, the second reference signal includes an SRS, and the performing is receiving.

As one embodiment, the second reference signal includes CSI-RS, and the performing is transmitting.

As one embodiment, the second reference signal includes a DMRS. The performing is receiving; or the performing is transmitting.

-step d.

Wherein the uplink information is used to determine at least one of { the first domain, the second domain }, and the performing is transmitting.

The application discloses a user equipment used for multi-antenna transmission, which comprises the following modules:

a first receiving module: for monitoring the first signaling in a first time window and the second signaling in a second time window;

a first processing module: for operating on the first wireless signal.

Wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. L is a positive integer. The operation is a reception or the operation is a transmission.

As an embodiment, the above user equipment for multi-antenna transmission is characterized in that the operation is transmission, the first wireless signal includes L reference signals, and the L reference signals are respectively transmitted by the L antenna ports.

As an embodiment, the user equipment for multi-antenna transmission is characterized in that the first processing module is further configured to receive Q reference signals. Wherein the operation is reception, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer.

As an embodiment, the above user equipment for multi-antenna transmission is characterized in that the first field is used for determining a first matrix, and the first matrix is used for determining a precoding matrix of the first wireless signal. The second domain is used to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

As an embodiment, the user equipment for multi-antenna transmission is characterized in that the first receiving module is further configured to receive downlink information. Wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

As an embodiment, the user equipment for multi-antenna transmission is characterized by further comprising the following modules:

a second processing module: for operating the second reference signal.

a first sending module: for transmitting uplink information.

The application discloses be used for transmission of many antennas base station equipment, wherein, including following module:

a second sending module: the first signaling is sent in a first time window, and the second signaling is sent in a second time window;

a third processing module: for executing the first wireless signal.

As an embodiment, the base station device for multi-antenna transmission is characterized in that the performing is receiving, and the first wireless signal includes L reference signals, and the L reference signals are respectively transmitted by the L antenna ports.

As an embodiment, the base station device for multi-antenna transmission is characterized in that the third processing module is further configured to send Q reference signals. Wherein the performing is transmitting, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer.

As an embodiment, the above base station device for multi-antenna transmission is characterized in that the first field is used for determining a first matrix, and the first matrix is used for determining a precoding matrix of the first wireless signal. The second domain is used to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in a one-to-one correspondence with M of the P frequency regions. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

As an embodiment, the base station device for multi-antenna transmission is characterized in that the second sending module is further configured to send downlink information. Wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

As an embodiment, the base station device for multi-antenna transmission is characterized by further comprising the following modules:

a fourth processing module: for performing the second reference signal.

a second receiving module: for receiving uplink information.

As an example, compared with the conventional scheme, the method has the following advantages:

reducing the signalling overhead required for frequency selective precoding by decomposing the precoding matrix into the product of a non-frequency selective first matrix and a frequency selective second matrix, and applying different update periods and quantization accuracies to the first and second matrices.

Designing different load sizes for the DCI carrying the first matrix information and the DCI not carrying the first matrix information, thereby avoiding waste of DCI overhead.

By limiting DCI blind detection with a fixed load size within a given time window, the increase of blind detection times due to different DCI load sizes is avoided, and the complexity of blind detection is kept low.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of the non-limiting embodiments with reference to the following drawings in which:

fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the application;

fig. 2 shows a flow diagram of wireless transmission according to another embodiment of the present application;

FIG. 3 shows a schematic diagram of a resource mapping of a first time window and a second time window in the time domain according to an embodiment of the application;

figure 4 shows a schematic diagram of a first signaling according to an embodiment of the present application;

figure 5 shows a schematic diagram of first signaling according to another embodiment of the present application;

figure 6 shows a schematic diagram of second signaling according to an embodiment of the present application;

fig. 7 shows a schematic diagram of a relationship between { first matrix, M second matrices } and a precoding matrix of a first wireless signal according to an embodiment of the application;

fig. 8 shows a schematic diagram of resource mapping of L reference signals on the time-frequency domain according to an embodiment of the present application;

fig. 9 shows a schematic diagram of resource mapping of Q reference signals in the time-frequency domain according to an embodiment of the present application;

fig. 10 shows a block diagram of a processing device for use in a UE according to an embodiment of the present application;

fig. 11 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application.

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for UE U2. In fig. 1, the steps in block F1 and block F2, respectively, are optional.

For N1, downlink information is sent in step S101; receiving a second reference signal in step S102; transmitting a first signaling in a first time window and a second signaling in a second time window in step S11; the first wireless signal is received in step S12.

For U2, downlink information is received in step S201; transmitting a second reference signal in step S202; monitoring the first signaling in a first time window and the second signaling in a second time window in step S21; the first wireless signal is transmitted in step S22.

In embodiment 1, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used by the U2 to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used by the U2 to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain }, the second domain of the second signaling being used by the U2 to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The first wireless signal includes L reference signals, and the L reference signals are transmitted by the L antenna ports, respectively. The downlink information is used by the U2 to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }. The measurements based on the second reference signal are used by the N1 to determine at least one of { the first domain, the second domain }.

As sub-embodiment 1 of embodiment 1, the first domain is used by the U2 to determine a first matrix, which is used by the U2 to determine a precoding matrix for the first wireless signal. The second domain is used by the U2 to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. M is a positive integer, P is a positive integer greater than or equal to M

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the second matrix is used by the U2 to determine a precoding matrix of the first radio signal over the corresponding frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, said P is equal to said M.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, said P is greater than said M.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the first signaling indicates an index of each of the M frequency regions in the P frequency regions.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the second signaling indicates an index of each of the M frequency regions in the P frequency regions.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, a precoding matrix of the first radio signal is the same on different subcarriers of the same frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, a precoding matrix of the first radio signal is different over different frequency regions.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, a precoding matrix of the first wireless signal on any one of the M frequency regions is obtained by multiplying the first matrix by the corresponding second matrix.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the L antenna ports are divided into P antenna port groups, the antenna port groups include R of the antenna ports, the number of columns of the second matrix is equal to R, and the multiplication of P by R is equal to L. The P antenna port groups correspond to the P frequency regions one by one, and a wireless signal sent by any one antenna port group does not occupy frequency resources outside the corresponding frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the antenna ports are formed by antenna Virtualization (Virtualization) of a plurality of physical antennas, and mapping coefficients of the plurality of physical antennas to the antenna ports constitute beamforming vectors. The M antenna port groups in the P antenna port groups correspond to the M second matrices one to one, the first matrix and the second matrix are multiplied to obtain a reference matrix, and R columns in the reference matrix are the beamforming vectors of the R antenna ports included in the corresponding antenna port groups, respectively.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the first matrix is one of a first set of candidate matrices, the first field includes an index of the first matrix in the first set of candidate matrices, and the first set of candidate matrices includes a positive integer number of matrices.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the second matrix is one matrix of a second candidate matrix set, the second field includes an index of each of the M second matrices in the second candidate matrix set, and the second candidate matrix set includes a positive integer number of matrices.

As sub-embodiment 2 of embodiment 1, the number of bits in the first domain is greater than the number of bits in the second domain.

As sub-embodiment 3 of embodiment 1, the number of bits in the first domain is smaller than the number of bits in the second domain.

As sub-embodiment 4 of embodiment 1, the number of bits in the first domain is equal to the number of bits in the second domain.

As sub-embodiment 5 of embodiment 1, the first signaling includes K fields other than the first field and the second field, the second signaling includes the K fields, and K is a positive integer.

As sub-embodiment 6 of embodiment 1, any one of the K fields includes one or more of { resource allocation field, MCS field, RV field, NDI field, HARQ process number field, transmit power control field }.

As sub-embodiment 7 of embodiment 1, the antenna ports are formed by antenna Virtualization (Virtualization) of a plurality of physical antennas, and mapping coefficients of the plurality of physical antennas to the antenna ports constitute beamforming vectors.

As sub-embodiment 8 of embodiment 1, a given domain being used to form a given antenna port means: the given field is used to generate a beamforming vector for the given antenna port. The given domain is the first domain or the second domain.

As a sub-embodiment of sub-embodiment 8 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, and the given domain is used to generate at least one of { the analog beamforming matrix for the given antenna port, the digital beamforming vector for the given antenna port }.

As a sub-embodiment of sub-embodiment 8 of embodiment 1, the beamforming vector is generated by multiplying an analog beamforming matrix and a digital beamforming vector, the first field is used to generate the analog beamforming matrix corresponding to the L antenna ports, and the second field is used to generate the digital beamforming vector corresponding to the L antenna ports.

As sub-embodiment 9 of embodiment 1, a given domain being used to form a given antenna port means: the given field indicates a beamforming vector corresponding to the given antenna port. The given domain is the first domain or the second domain.

As a sub-embodiment of sub-embodiment 9 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, and the given field indicates at least one of the analog beamforming matrix corresponding to the given antenna port and the digital beamforming vector corresponding to the given antenna port.

As a sub-embodiment of sub-embodiment 9 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the first field indicates the analog beamforming matrices for the L antenna ports, and the second field indicates the digital beamforming vectors for the L antenna ports.

As sub-embodiment 10 of embodiment 1, the first signaling and the second signaling are each dynamic signaling.

As sub-embodiment 11 of embodiment 1, the first signaling and the second signaling are DCI for an Uplink Grant (Uplink Grant).

As sub-embodiment 12 of embodiment 1, the first signaling carries scheduling information of the first wireless signal.

As sub-embodiment 13 of embodiment 1, the second signaling carries scheduling information of the first wireless signal.

As a sub-embodiment of sub-embodiment 13 of embodiment 1, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As sub-embodiment 14 of embodiment 1, the first signaling and the second signaling are respectively transmitted on a downlink physical layer control channel (i.e. a downlink channel which can only be used for carrying physical layer signaling).

As a sub-embodiment of sub-embodiment 14 of embodiment 1, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of sub-embodiment 14 of embodiment 1, the downlink physical layer control channel is sPDCCH.

As sub-embodiment 15 of embodiment 1, the first wireless signal is transmitted on a physical layer data channel.

As a sub-embodiment of sub-embodiment 15 of embodiment 1, the physical layer data channel is PUSCH.

As a sub-embodiment of sub-embodiment 15 of embodiment 1, the physical layer data channel is an sPUSCH.

As a sub-embodiment 16 of embodiment 1, the first domain comprises a first TPMI.

As a sub-embodiment of sub-embodiment 16 of embodiment 1, the first TPMI is a wideband TPMI used by the U2 to determine a precoding matrix for the first wireless signal on all subcarriers occupied by the first wireless signal.

As a sub-embodiment 17 of embodiment 1, the second domain comprises M second TPMIs, where M is a positive integer.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the second TPMI is a sub-band (sub-band) TPMI, the frequency resources occupied by the first wireless signal are divided into a plurality of frequency regions, and the second TPMI is used by the U2 for determining the precoding matrix of the first wireless signal only on a part of the frequency regions.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the K is equal to the M.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, said K is not equal to said M.

As sub-embodiment 18 of embodiment 1, the transmitting of the first wireless signal by the L antenna ports respectively means: the first wireless signal includes L sub-signals, and the L sub-signals are transmitted by the L antenna ports, respectively.

As a sub-embodiment 19 of embodiment 1, the payload size (payload size) of the first signaling is larger than the payload size of the second signaling.

As a sub-embodiment 20 of embodiment 1, a payload size (payload size) of the first signaling is smaller than a payload size of the second signaling.

As a sub-embodiment 21 of embodiment 1, the payload size (payload size) of the first signaling is equal to the payload size of the second signaling.

As a sub-embodiment 22 of embodiment 1, the monitoring refers to receiving based on blind detection, that is, receiving a signal in a given time window and performing a decoding operation, and if it is determined from the check bits that the decoding is correct, the receiving is determined to be successful, otherwise, the receiving is determined to be failed. The given time window is either the first time window or the second time window.

As a sub-embodiment of sub-embodiment 22 of embodiment 1, the UE performs blind detection with the payload size of the first signaling in the first time window, and the UE performs blind detection with the payload size of the second signaling in the second time window.

As sub-embodiment 23 of embodiment 1, the first signaling indicates RS port information of the L reference signals.

As sub-embodiment 24 of embodiment 1, the second signaling indicates RS port information of the L reference signals.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the RS port information includes at least one of { occupied time domain resource, occupied frequency domain resource, RS pattern (pattern), RS sequence, CS (Cyclic Shift, Cyclic Shift amount), OCC (Orthogonal Code) }.

As sub-embodiment 25 of embodiment 1, the L reference signals include DMRSs.

As a sub-embodiment 26 of embodiment 1, the downlink information is carried by higher layer signaling.

As a sub-embodiment of sub-embodiment 26 of embodiment 1, the downlink information is carried by RRC signaling.

As a sub-embodiment 27 of embodiment 1, the downstream information is semi-statically configured.

As a sub-embodiment 28 of embodiment 1, the downlink information is cell-common.

As a sub-embodiment 29 of embodiment 1, the downlink information is UE-specific (UE-specific).

As sub-embodiment 30 of embodiment 1, the second reference signal includes an SRS.

As sub-embodiment 31 of embodiment 1, the second reference signal comprises a DMRS.

As a sub-embodiment 32 of embodiment 1, the measurements based on the second reference signal are used by the N1 to determine P1 first channel matrices, the P1 first channel matrices are used by the N1 to determine at least one of { the first domain, the second domain }, the P1 is a positive integer.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, the rank of the first channel matrix is greater than or equal to the L divided by the P.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, said P1 is greater than said P.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, said P1 is equal to said P.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, said P1 is less than said P.

As sub-embodiment 33 of embodiment 1, frequency domain resources occupied by the second reference signal are divided into P1 frequency regions, the second reference signal is respectively transmitted by positive integer number of antenna ports, and the N1 is used to determine channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions based on measurement of the second reference signal, and the channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions respectively constitute the P1 first channel matrices.

As a sub-embodiment 34 of embodiment 1, both block F1 and block F2 of fig. 1 exist.

As a sub-example 35 of example 1, block F1 in fig. 1 is present and block F2 is not present.

As a sub-example 36 of example 1, block F1 in fig. 1 is absent and block F2 is present.

As a sub-example 37 of example 1, neither block F1 nor block F2 of fig. 1 is present.

Example 2

Embodiment 2 illustrates a flow chart of wireless transmission, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintenance base station for UE U4. In FIG. 2, the steps in block F3, block F4, and block F5, respectively, are optional.

For N3, downlink information is sent in step S301; transmitting a second reference signal in step S302; receiving uplink information in step S303; transmitting a first signaling in a first time window and a second signaling in a second time window in step S31; transmitting Q reference signals in step S32; the first wireless signal is transmitted in step S33.

For U4, downlink information is received in step S401; receiving a second reference signal in step S402; transmitting uplink information in step S403; monitoring the first signaling in a first time window and the second signaling in a second time window in step S41; receiving Q reference signals in step S42; the first wireless signal is received in step S43.

In embodiment 2, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used by the N3 to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used by the N3 to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain }, the second domain of the second signaling being used by the N3 to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The first field in the first signaling is used by the N3 to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer. The downlink information is used by the U4 to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }. The measurements based on the second reference signals are used by the U4 to determine the uplink information used by the N3 to determine at least one of { the first domain, the second domain }.

As sub-embodiment 1 of embodiment 2, the first field is used by the N3 to determine a first matrix, which is used by the N3 to determine a precoding matrix for the first wireless signal. The second domain is used by the N3 and the U4 to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

As a sub-embodiment of sub-embodiment 1 of embodiment 2, the second matrix is used by the N3 and the U4 to determine a precoding matrix of the first wireless signal over the corresponding frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 2, the antenna ports are formed by antenna Virtualization (Virtualization), and mapping coefficients of the plurality of physical antennas to the antenna ports constitute beamforming vectors. The number of columns of the first matrix is equal to Q, the columns of the first matrix being the beamforming vectors corresponding to the Q antenna ports, respectively.

As a sub-embodiment of sub-embodiment 1 of embodiment 2, the Q is greater than or equal to the L divided by the P.

As sub-embodiment 2 of embodiment 2, the first signaling and the second signaling are DCI for Downlink Grant (Downlink Grant).

As sub-embodiment 3 of embodiment 2, the first wireless signal is transmitted on a physical layer data channel.

As a sub-embodiment of sub-embodiment 3 of embodiment 2, the physical layer data channel is a PDSCH.

As a sub-embodiment of sub-embodiment 3 of embodiment 2, the physical layer data channel is a sPDSCH.

As sub-embodiment 4 of embodiment 2, the first signaling indicates RS port information of the Q reference signals.

As sub-embodiment 5 of embodiment 2, the second signaling indicates RS port information of the Q reference signals.

As a sub-embodiment of sub-embodiment 5 of embodiment 2, the RS port information includes at least one of { occupied time domain resource, occupied frequency domain resource, RS pattern (pattern), RS sequence, CS (Cyclic Shift, Cyclic Shift amount), OCC (Orthogonal Code) }.

As sub-embodiment 6 of embodiment 2, the Q reference signals include DMRSs.

As sub-embodiment 7 of embodiment 2, the Q reference signals comprise CSI-RS.

As sub-embodiment 8 of embodiment 2, the first field is used by the N3 to generate the beamforming vectors for the Q antenna ports.

As sub-embodiment 9 of embodiment 2, the first field indicates the beamforming vectors for the Q antenna ports.

As sub-embodiment 10 of embodiment 2, the measurement based on the Q reference signals and the second domain are used by the U4 to determine channel parameters corresponding to the L antenna ports.

As a sub-embodiment of sub-embodiment 10 of embodiment 2, the channel parameter is the CIR.

As sub-embodiment 11 of embodiment 2, the second reference signal includes CSI-RS.

As sub-embodiment 12 of embodiment 2, the second reference signal includes a DMRS.

As sub-embodiment 13 of embodiment 2, measurements based on the second reference signal are used by the U4 to determine P1 first channel matrices, the P1 being a positive integer.

As a sub-embodiment of sub-embodiment 13 of embodiment 2, frequency domain resources occupied by the second reference signal are divided into P1 frequency regions, the second reference signal is respectively transmitted by positive integer number of antenna ports, the measurement based on the second reference signal is used by the U4 to determine channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions, and channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions respectively constitute the P1 first channel matrices.

As a sub-embodiment of sub-embodiment 13 of embodiment 2, the rank of the first channel matrix is greater than or equal to the Q.

As sub-embodiment 14 of embodiment 2, the uplink information indicates at least one of { the first field, the second field }.

As a sub-embodiment 15 of embodiment 2, the P1 first channel matrices are used by the U4 to generate the upstream information.

As a sub-embodiment 16 of embodiment 2, the uplink information includes quantized information of P2 first channel matrices, the P2 first channel matrices are subsets of the P1 first channel matrices, and the P2 is a positive integer smaller than or equal to the P1.

As a sub-embodiment 17 of embodiment 2, the P2 first quantization matrices are used by the N3 to generate at least one of { the first domain, the second domain }.

As a sub-embodiment 18 of embodiment 2, the uplink information includes UCI.

As a sub-embodiment 19 of embodiment 2, the uplink information is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of sub-embodiment 19 of embodiment 2, the uplink physical layer control channel is a PUCCH.

As a sub-embodiment 20 of embodiment 2, the uplink information is transmitted on an uplink physical layer data channel (i.e. an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of sub-embodiment 20 of embodiment 2, the uplink physical layer data channel is PUSCH.

As sub-embodiment 21 of embodiment 2, block F3, block F4, and block F5 of fig. 2 all exist.

As sub-embodiment 22 of embodiment 2, blocks F3 and F4 in fig. 2 exist, and block F5 does not exist.

As sub-embodiment 23 of embodiment 2, block F3 in fig. 2 exists, and block F4 and block F5 do not exist.

As a sub-example 24 of example 2, the blocks F3 and F5 in fig. 2 exist, and the block F4 does not exist.

As a sub-embodiment 25 of embodiment 2, block F3 in fig. 2 does not exist, and blocks F4 and F5 exist.

As sub-embodiment 26 of embodiment 2, blocks F3 and F4 in fig. 2 do not exist, and block F5 does exist.

As a sub-embodiment 27 of embodiment 2, blocks F3 and F5 in fig. 2 do not exist, and block F4 exists.

As a sub-example 28 of example 2, none of block F3, block F4, and block F5 in FIG. 2 are present.

Example 3

Embodiment 3 illustrates a schematic diagram of resource mapping of a first time window and a second time window in a time domain, as shown in fig. 3.

In embodiment 3, the first time window and the second time window are orthogonal to each other in the time domain, and the UE monitors the first signaling in the first time window and monitors the second signaling in the second time window. The first signaling includes a first domain and a second domain, or the first signaling includes the first domain. The second signaling includes the second domain. The first time window includes T1 time units, the second time window includes T2 time units, and the T1 and the T2 are positive integers, respectively.

As sub-embodiment 1 of embodiment 3, the time unit is a subframe.

As sub-example 2 of example 3, the time unit is 1 ms.

As a sub-embodiment 3 of embodiment 3, the T1 time units are discontinuous in the time domain.

As a sub-embodiment 4 of embodiment 3, the T2 time units are discontinuous in the time domain.

As sub-example 5 of example 3, the T1 is greater than the T2.

As sub-embodiment 6 of embodiment 3, the T1 is equal to the T2.

As sub-example 7 of example 3, the T1 is less than the T2.

As sub-embodiment 8 of embodiment 3, the payload size (payload size) of the first signaling is larger than the payload size of the second signaling.

As sub-embodiment 9 of embodiment 3, the payload size (payload size) of the first signaling is smaller than the payload size of the second signaling.

As sub-embodiment 10 of embodiment 3, the payload size (payload size) of the first signaling is equal to the payload size of the second signaling.

As a sub-embodiment 11 of embodiment 3, the monitoring refers to receiving based on blind detection, that is, receiving a signal in a given time window and performing a decoding operation, and if it is determined from the check bits that the decoding is correct, the receiving is determined to be successful, otherwise, the receiving is determined to be failed. The given time window is either the first time window or the second time window.

As a sub-embodiment of sub-embodiment 11 of embodiment 3, the UE performs blind detection with the payload size of the first signaling in the first time window, and the UE performs blind detection with the payload size of the second signaling in the second time window.

Example 4

Embodiment 4 illustrates a schematic diagram of first signaling, as shown in fig. 4.

In embodiment 4, the first signaling includes { a first domain, a second domain, K domains other than the first domain and the second domain }. The first field indicates a first TPMI used to determine a first matrix used to determine a precoding matrix for the first wireless signal in the present application. The second field comprises a bitmap (C) consisting of P bits₀～C_P-1) And M second TPMI. The M second TPMIs are used to determine M second matrices, a frequency resource occupied by the first radio signal is divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. The P bits included in the second domain respectively indicate whether each of the P frequency regions belongs to the M frequency regions, where M bits of the P bits are in a first state, and the rest bits are in a second state. The frequency region corresponding to the bit in the P bits whose state is the first state belongs to the M frequency regions, and the frequency region corresponding to the bit in the P bits whose state is the second state does not belong to the M frequency regionsIn the M frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

As sub-embodiment 1 of embodiment 4, the second matrix is used to determine a precoding matrix of the first wireless signal over the corresponding frequency region.

As sub-embodiment 2 of embodiment 4, the first matrix is one of a first candidate matrix set, and the first TPMI is an index of the first matrix in the first candidate matrix set, the first candidate matrix set including a positive integer number of matrices.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the first TPMI includes a number of bits that is a smallest positive integer of a base-2 logarithm of a number of matrices included in the first candidate matrix set or not less.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the first TPMI includes a number of bits of 3.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the first TPMI includes a number of bits of 4.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the first TPMI includes a number of bits of 5.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the first TPMI includes a number of bits of 6.

As sub-embodiment 3 of embodiment 4, the second matrix is one matrix in a second candidate matrix set, and the M second TPMIs are indexes of each of the M second matrices in the second candidate matrix set, respectively, and the second candidate matrix set includes a positive integer number of matrices.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the second TPMI includes a number of bits that is a smallest positive integer not less than a base-2 logarithm of the number of matrices included in the second candidate matrix set, and the second field includes a number of bits equal to M times the number of bits included in the second TPMI plus P.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the second TPMI includes a number of bits of 2.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the second TPMI includes a number of bits of 3.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the second TPMI includes a number of bits of 4.

As sub-embodiment 4 of embodiment 4, the first set of candidate matrices includes a greater number of matrices than the second set of candidate matrices.

As sub-embodiment 5 of embodiment 4, the first set of candidate matrices includes a number of matrices equal to a number of matrices included in the second set of candidate matrices.

As sub-embodiment 6 of embodiment 4, the first set of candidate matrices includes a smaller number of matrices than the second set of candidate matrices.

As sub-embodiment 7 of embodiment 4, the number of bits in the first domain is greater than the number of bits in the second domain.

As a sub-embodiment 8 of embodiment 4, the number of bits in the first domain is smaller than the number of bits in the second domain.

As a sub-embodiment 9 of embodiment 4, the number of bits in the first domain is equal to the number of bits in the second domain.

As sub-embodiment 10 of embodiment 4, any one of the K fields includes one or more of a { resource allocation field, MCS field, RV field, NDI field, HARQ process number field, transmit power control field }.

As sub-example 11 of example 4, the K is equal to the M.

As a sub-example 12 of example 4, the K is not equal to the M.

As sub-embodiment 13 of embodiment 4, the first state is 1 and the second state is 0.

As sub-embodiment 14 of embodiment 4, the first state is 0 and the second state is 1.

Example 5

Embodiment 5 illustrates a schematic diagram of first signaling, as shown in fig. 5.

In embodiment 5, the first signaling includes { a first domain, K domains other than the first domain }. The first field indicates a first TPMI used to determine a first matrix used to determine a precoding matrix for the first wireless signal in the present application.

As sub-embodiment 1 of embodiment 5, any one of the K domains includes one or more of { resource allocation domain, MCS domain, RV domain, NDI domain, HARQ process number domain, transmission power control domain }.

Example 6

Embodiment 6 illustrates a schematic diagram of second signaling, as shown in fig. 6.

In embodiment 6, the second signaling includes { a second domain, K domains other than the second domain }. The second field comprises a bitmap (C) consisting of P bits₀～C_P-1) And M second TPMI. The M second TPMI are used to determine M second matrices. In this application, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices correspond to M of the P frequency regions one to one. The P bits included in the second domain respectively indicate whether each of the P frequency regions belongs to the M frequency regions, where M bits of the P bits are in a first state, and the rest bits are in a second state. The frequency region corresponding to the bit in the P bits whose state is the first state belongs to the M frequency regions, and the frequency region corresponding to the bit in the P bits whose state is the second state does not belong to the M frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

As sub-embodiment 1 of embodiment 6, the second matrix is used to determine a precoding matrix of the first wireless signal over the corresponding frequency region.

As sub-embodiment 2 of embodiment 6, the second matrix is one matrix in a second candidate matrix set, and the M second TPMIs are indexes of each of the M second matrices in the second candidate matrix set, respectively, and the second candidate matrix set includes a positive integer number of matrices.

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the second TPMI includes a number of bits that is a smallest positive integer of a base-2 logarithm of a number of matrices included in the second candidate matrix set or not, and the second field includes a number of bits equal to M times the number of bits included in the second TPMI plus P.

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the second TPMI includes a number of bits of 2.

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the second TPMI includes a number of bits of 3.

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the second TPMI includes a number of bits of 4.

As sub-embodiment 3 of embodiment 6, any one of the K fields includes one or more of { resource allocation field, MCS field, RV field, NDI field, HARQ process number field, transmit power control field }.

As sub-example 4 of example 6, the K is equal to the M.

As sub-embodiment 5 of embodiment 6, said K is not equal to said M.

As sub-embodiment 6 of embodiment 6, the first state is 1 and the second state is 0.

As sub-embodiment 7 of embodiment 6, the first state is 0 and the second state is 1.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between { first matrix, M second matrices } and a precoding matrix of a first wireless signal, as shown in fig. 7.

In embodiment 7, the precoding matrix of the first wireless signal is determined by { the first matrix, the M second matrices }. The frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices correspond to M of the P frequency regions one to one. A precoding matrix of the first wireless signal on any one of the M frequency regions is determined by { the first matrix, the corresponding second matrix }. M is a positive integer, and P is a positive integer greater than or equal to M.

As sub-embodiment 1 of embodiment 7, a precoding matrix of the first wireless signal on any one of the M frequency regions is obtained by multiplying the first matrix and the corresponding second matrix.

As sub-example 2 of example 7, the P is equal to the M.

As sub-example 3 of example 7, the P is greater than the M.

As sub-embodiment 4 of embodiment 7, the frequency region includes a positive integer number of consecutive subcarriers.

As sub-embodiment 5 of embodiment 7, any two of the frequency regions include the same number of subcarriers.

As sub-embodiment 6 of embodiment 7, there are at least two different said frequency regions comprising different numbers of sub-carriers.

As a sub-embodiment 7 of the embodiment 7, the P frequency regions are mutually orthogonal two by two in the frequency domain, i.e. there is no subcarrier belonging to two different frequency regions at the same time.

As sub-embodiment 8 of embodiment 7, the precoding matrix of the first radio signal is the same on different subcarriers of the same frequency region.

As sub-embodiment 9 of embodiment 7, a precoding matrix of the first wireless signal is different across the frequency regions.

As sub-embodiment 10 of embodiment 7, the M second matrices are indicated by the first signaling in the present application.

As sub-embodiment 11 of embodiment 7, the M second matrices are indicated by the second signaling in the present application.

As sub-embodiment 12 of embodiment 7, the first signaling in the present application indicates an index of each of the M frequency regions in the P frequency regions.

As sub-embodiment 13 of embodiment 7, the second signaling in the present application indicates an index of each of the M frequency regions in the P frequency regions.

Example 8

Embodiment 8 illustrates a schematic diagram of resource mapping of L reference signals in the time-frequency domain, as shown in fig. 8.

In embodiment 8, the L reference signals are transmitted by L antenna ports, respectively, and the L antenna ports are further used for transmitting the first wireless signal in the present application. The first matrix in the present application and the M second matrices in the present application are used to form the L antenna ports. The frequency resources occupied by the first wireless signals are divided into P frequency regions, the L antenna ports are divided into P antenna port groups, each antenna port group comprises R antenna ports, the P antenna port groups are in one-to-one correspondence with the P frequency regions, and the wireless signals sent by any one antenna port group do not occupy the frequency resources outside the corresponding frequency regions. The L reference signals are divided into P reference signal groups, the reference signal groups comprise R reference signals, the P reference signal groups and the P antenna port groups are in one-to-one correspondence, and the R reference signals in the reference signal groups are respectively transmitted by R antenna ports in the corresponding antenna port groups. The number of columns of the second matrix is equal to the R, the P multiplied by the R is equal to the L.

As sub-embodiment 1 of embodiment 8, the first wireless signal is transmitted by the corresponding antenna port group on the frequency region.

As sub-embodiment 2 of embodiment 8, the antenna ports are formed by antenna Virtualization (Virtualization) of a plurality of physical antennas, and mapping coefficients of the plurality of physical antennas to the antenna ports constitute beamforming vectors.

As sub-embodiment 3 of embodiment 8, M antenna port groups in the P antenna port groups correspond to the M second matrices one to one, the first matrices and the second matrices are multiplied to obtain reference matrices, and R columns in the reference matrices are the beamforming vectors of the R antenna ports included in the corresponding antenna port groups, respectively.

As a sub-embodiment of sub-embodiment 3 of embodiment 8, the first signaling in this application indicates an index of each of the M antenna port groups in the P antenna port groups.

As a sub-embodiment of sub-embodiment 3 of embodiment 8, the second signaling in this application indicates an index of each of the M antenna port groups in the P antenna port groups.

As sub-embodiment 4 of embodiment 8, the beamforming vector is generated by the product of an analog beamforming matrix and a digital beamforming vector.

As a sub-embodiment of sub-embodiment 4 of embodiment 8, the analog beamforming matrices for the L antenna ports are the same.

As a sub-embodiment of sub-embodiment 4 of embodiment 8, the analog beamforming matrices for the L antenna ports are the first matrices, respectively.

As a sub-embodiment of sub-embodiment 4 of embodiment 8, the antenna ports in different antenna port groups correspond to different digital beamforming vectors.

As a sub-embodiment of sub-embodiment 4 of embodiment 8, a column in the second matrix constitutes the digital beamforming vector for the antenna port in the corresponding antenna port group.

As sub-embodiment 5 of embodiment 8, the L reference signals include DMRSs.

As sub-embodiment 6 of embodiment 8, any one of the L reference signals employs a pattern of DMRS (pattern).

As a sub-embodiment 7 of the embodiment 8, the P reference signal groups and the P frequency regions are in one-to-one correspondence, and the reference signal groups do not occupy frequency resources outside the corresponding frequency regions.

As a sub-embodiment 8 of embodiment 8, the M second matrices are indicated by the first signaling in the present application.

As sub-embodiment 9 of embodiment 8, the M second matrices are indicated by the second signaling in the present application.

Example 9

Embodiment 9 illustrates a schematic diagram of resource mapping of Q reference signals in the time-frequency domain, which is shown in fig. 9.

In embodiment 9, the Q reference signals are transmitted by Q antenna ports, respectively, and the first matrix in this application is used to form the Q antenna ports.

As sub-embodiment 1 of embodiment 9, the number of columns of the first matrix is equal to the Q, the columns of the first matrix being the beamforming vectors for the Q antenna ports, respectively.

As sub-embodiment 2 of embodiment 9, the Q reference signals include DMRSs.

As sub-embodiment 3 of embodiment 9, any one of the Q reference signals employs a pattern (pattern) of DMRS.

As sub-embodiment 4 of embodiment 9, the Q reference signals include CSI-RSs.

As sub-embodiment 5 of embodiment 9, any one of the Q reference signals employs a CSI-RS pattern.

As sub-embodiment 6 of embodiment 9, the measurements based on the Q reference signals and the M second matrices in this application are used to determine channel parameters corresponding to the L antenna ports in this application.

As a sub-embodiment of sub-embodiment 6 of embodiment 9, the channel parameter is the CIR.

As a sub-embodiment of sub-embodiment 6 of embodiment 9, the L antenna ports are divided into P antenna port groups, and M of the P antenna port groups are in one-to-one correspondence with the M second matrices. And the channel parameters corresponding to the M antenna port groups form M target channel matrixes, measurement based on the Q reference signals is used for determining a reference channel matrix, and the reference channel matrix is multiplied by the M second matrixes respectively to obtain the M target channel matrixes. M is a positive integer, and P is a positive integer greater than or equal to M.

Example 10

Embodiment 10 illustrates a block diagram of a processing apparatus used in a UE, as shown in fig. 10. In fig. 10, the UE apparatus 200 is mainly composed of a first receiving module 201, a first processing module 202, a second processing module 203 and a first transmitting module 204.

In embodiment 10, the first receiving module 201 is configured to monitor a first signaling in a first time window, and monitor a second signaling in a second time window; the first processing module 202 is configured to operate on a first wireless signal; the second processing module 203 is configured to operate on a second reference signal; the first sending module 204 is configured to send uplink information. In fig. 10, the first sending module 204 is optional.

In embodiment 10, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The operation is reception, the first sending module 204 is present, measurements based on the second reference signal are used by the first sending module 204 to determine the uplink information, the uplink information is used to determine at least one of { the first domain, the second domain }; or the operation is a transmission, the first transmitting module 204 is not present, measurements based on the second reference signal are used to determine at least one of { the first domain, the second domain }.

As sub-embodiment 1 of embodiment 10, the operation is transmission, and the first wireless signal includes L reference signals, which are transmitted by the L antenna ports, respectively.

As sub-embodiment 2 of embodiment 10, the first processing module 202 is further configured to receive Q reference signals. Wherein the operation is reception, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively. And Q is a positive integer.

As sub-embodiment 3 of embodiment 10, the first field is used to determine a first matrix used to determine a precoding matrix for the first wireless signal. The second domain is used by the first processing module 202 to determine M second matrices, a frequency resource occupied by the first wireless signal is divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

As a sub-embodiment of sub-embodiment 3 of embodiment 10, the operation is transmission, the first field is used by the first processing module 202 to determine the first matrix, and the first matrix is used by the first processing module 202 to determine a precoding matrix of the first wireless signal.

As sub-embodiment 4 of embodiment 10, the first receiving module 201 is further configured to receive downlink information. Wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

As sub-embodiment 5 of embodiment 10, the operation is transmitting, and the first field in the first signaling is used by the first processing module 202 to form the L antenna ports.

As sub-embodiment 6 of embodiment 10, the operation is transmission, at least one of the first signaling including the second field, { the second field in the first signaling, the second field in the second signaling } is used by the first processing module 202 to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain }, the second domain of the second signaling being used by the first processing module 202 to form the L antenna ports.

As sub-embodiment 7 of embodiment 10, the operation is reception and the first sending module 204 is present.

As sub-embodiment 8 of embodiment 10, the operation is transmission and the first transmission module 204 is absent.

Example 11

Embodiment 11 illustrates a block diagram of a processing apparatus used in a base station, as shown in fig. 11. In fig. 11, the base station apparatus 300 mainly includes a second transmitting module 301, a third processing module 302, a fourth processing module 303, and a second receiving module 304.

In embodiment 11, the second sending module 301 is configured to send a first signaling in a first time window, and send a second signaling in a second time window; the third processing module 302 is configured to execute the first wireless signal; the fourth processing module 303 is configured to execute the second reference signal; the second receiving module 304 is configured to receive uplink information. In fig. 11, the second receiving module 304 is optional, and if the second receiving module 304 exists, a connection line between the fourth processing module 303 and the second transmitting module 301 does not exist; if the second receiving module 304 does not exist, the connection line between the fourth processing module 303 and the second transmitting module 301 becomes a solid line.

In embodiment 11, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second field, at least one of { the second field in the first signaling, the second field in the second signaling } is used to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports. The first wireless signals are transmitted by the L antenna ports, respectively. And L is a positive integer. The performing is transmitting, the second receiving module 304 is present, measurements based on the second reference signal are used to determine the uplink information, the uplink information is used by the second transmitting module 301 to determine at least one of { the first domain, the second domain }; or the performing is receiving, the second receiving module 304 is not present, measurements based on the second reference signal are used by the second transmitting module 301 to determine at least one of { the first domain, the second domain }.

As sub-embodiment 1 of embodiment 11, the performing is receiving, and the first wireless signal includes L reference signals, which are transmitted by the L antenna ports, respectively.

As sub-embodiment 2 of embodiment 11, the third processing module 302 is further configured to send Q reference signals. Wherein the performing is transmitting, the first field in the first signaling is used by the third processing module 302 to form Q antenna ports, and the Q reference signals are respectively transmitted by the Q antenna ports. Q is a positive integer.

As sub-embodiment 3 of embodiment 11, the first field is used to determine a first matrix used to determine a precoding matrix for the first wireless signal. The second domain is used to determine M second matrices, frequency resources occupied by the first wireless signal are divided into P frequency regions, and the M second matrices are in one-to-one correspondence with M of the P frequency regions. M is a positive integer, and P is a positive integer greater than or equal to M.

As a sub-embodiment of sub-embodiment 3 of embodiment 11, the performing is transmitting, the first field is used by the third processing module 302 to determine a first matrix, the first matrix is used by the third processing module 302 to determine a precoding matrix for the first wireless signal, and the second field is used by the third processing module 302 to determine M second matrices.

As sub-embodiment 4 of embodiment 11, the second sending module 301 is further configured to send downlink information. Wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

As sub-embodiment 5 of embodiment 11, the performing is transmitting, and the first field in the first signaling is used by the third processing module 302 to form L antenna ports.

As sub-embodiment 6 of embodiment 11, the performing is transmitting, and at least one of the first signaling including the second field, { the second field in the first signaling, the second field in the second signaling } is used by the third processing module 302 to form the L antenna ports; or the first signaling comprises the former of { the first domain, the second domain }, the second domain of the second signaling being used by the third processing module 302 to form the L antenna ports.

As sub-embodiment 7 of embodiment 11, the execution is transmission, the second receiving module 304 exists, and a connection line between the fourth processing module 303 and the second transmitting module 301 does not exist.

As sub-embodiment 8 of embodiment 11, the execution is reception, the second receiving module 304 does not exist, and a connection line between the fourth processing module 303 and the second transmitting module 301 becomes a solid line.

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 relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the application comprises but is not limited to a mobile phone, a tablet computer, a notebook, an internet card, an internet of things communication module, vehicle-mounted communication equipment, an NB-IOT terminal, an eMTC terminal and other wireless communication equipment. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a UE used for multi-antenna transmission, comprising the steps of:

-step b. operating on the first wireless signal;

wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling comprises a first domain, and the second signaling comprises a second domain; the first field in the first signaling is used to form L antenna ports; the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports; the first wireless signals are respectively transmitted by the L antenna ports; l is a positive integer; the first signaling and the second signaling are dynamic signaling respectively; the first wireless signal is transmitted on a PDSCH and the operation is reception, or the first wireless signal is transmitted on a PUSCH and the operation is transmission; the first signaling carries the scheduling information of the first wireless signal or the second signaling carries the scheduling information of the first wireless signal, and the scheduling information includes at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, or NDI.

2. The method of claim 1, wherein the operation is transmitting, wherein the first wireless signal comprises L reference signals, and wherein the L reference signals are transmitted by the L antenna ports, respectively.

3. The method of claim 1, wherein step B further comprises the steps of:

-step B0. receiving Q reference signals;

wherein the operation is reception, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively; and Q is a positive integer.

4. The method of claim 1 or 2, wherein the first domain is used to determine a first matrix used to determine a precoding matrix for the first wireless signal; the second domain is used for determining M second matrixes, frequency resources occupied by the first wireless signals are divided into P frequency regions, and the M second matrixes correspond to M frequency regions in the P frequency regions in a one-to-one mode; m is a positive integer, and P is a positive integer greater than or equal to M.

5. The method according to claim 1 or 2, wherein said step a further comprises the steps of:

-step A0. receiving downstream information;

6. The method according to claim 1 or 2, further comprising the steps of:

-step c. operating a second reference signal;

7. The method according to claim 1 or 2, further comprising the steps of:

-step d. sending uplink information;

8. A method in a base station used for multi-antenna transmission, comprising the steps of:

-step b. executing the first wireless signal;

wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling comprises a first domain, and the second signaling comprises a second domain; the first field in the first signaling is used to form L antenna ports; the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports; the first wireless signals are respectively transmitted by the L antenna ports; l is a positive integer; the first signaling and the second signaling are dynamic signaling, respectively; the first wireless signal is transmitted on a PDSCH and the performing is transmitting, or the first wireless signal is transmitted on a PUSCH and the performing is receiving; the first signaling carries the scheduling information of the first wireless signal or the second signaling carries the scheduling information of the first wireless signal, and the scheduling information includes at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, or NDI.

9. The method of claim 8, wherein the performing is receiving, wherein the first wireless signal comprises L reference signals, and wherein the L reference signals are respectively transmitted by the L antenna ports.

10. The method of claim 8, wherein step B further comprises the steps of:

-step B0. sending Q reference signals;

wherein the performing is transmitting, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively; and Q is a positive integer.

11. The method of claim 8 or 9, wherein the first domain is used to determine a first matrix, the first matrix being used to determine a precoding matrix for the first wireless signal; the second domain is used for determining M second matrixes, frequency resources occupied by the first wireless signals are divided into P frequency regions, and the M second matrixes correspond to M frequency regions in the P frequency regions in a one-to-one mode; the M is a positive integer, and the P is a positive integer greater than or equal to the M.

12. The method according to claim 8 or 9, wherein said step a further comprises the steps of:

step A0. sending downstream information;

13. The method according to claim 8 or 9, further comprising the steps of:

-step c. performing a second reference signal;

14. The method according to claim 8 or 9, further comprising the steps of:

-step d. receiving uplink information;

15. A user equipment for multi-antenna transmission, comprising:

a first processing module: for operating on the first wireless signal;

wherein the first time window and the second time window are orthogonal to each other in a time domain, the first signaling comprises a first domain, and the second signaling comprises a second domain; the first field in the first signaling is used to form L antenna ports; the first signaling comprises the former of { the first domain, the second domain } the second domain in the second signaling is used to form the L antenna ports; the first wireless signals are respectively transmitted by the L antenna ports; l is a positive integer; the first signaling and the second signaling are dynamic signaling, respectively; the first wireless signal is transmitted on a PDSCH and the operation is reception, or the first wireless signal is transmitted on a PUSCH and the operation is transmission; the first signaling carries the scheduling information of the first wireless signal or the second signaling carries the scheduling information of the first wireless signal, and the scheduling information includes at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, or NDI.

16. The UE of claim 15, wherein the operation is transmitting, and wherein the first radio signal comprises L reference signals, and wherein the L reference signals are transmitted by the L antenna ports respectively.

17. The UE of claim 15, wherein the first processing module is further configured to receive Q reference signals; wherein the operation is reception, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are respectively transmitted by the Q antenna ports; and Q is a positive integer.

18. The user equipment according to claim 15 or 16, wherein the first field is used for determining a first matrix used for determining a precoding matrix of the first radio signal; the second domain is used for determining M second matrixes, frequency resources occupied by the first wireless signals are divided into P frequency regions, and the M second matrixes correspond to M frequency regions in the P frequency regions in a one-to-one mode; m is a positive integer, and P is a positive integer greater than or equal to M.

19. The ue according to claim 15 or 16, wherein the first receiving module is further configured to receive downlink information; wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

20. The user equipment according to claim 15 or 16, further comprising the following modules:

a second processing module: for operating a second reference signal;

21. The user equipment according to claim 15 or 16, further comprising the following modules:

a first sending module: used for sending the upstream information;

22. A base station device used for multi-antenna transmission, comprising:

a third processing module: for executing the first wireless signal;

23. The base station device of claim 22, wherein the performing is receiving, and wherein the first wireless signal comprises L reference signals, and wherein the L reference signals are transmitted by the L antenna ports, respectively.

24. The base station device of claim 22, wherein the third processing module is further configured to send Q reference signals; wherein the performing is transmitting, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are transmitted by the Q antenna ports, respectively; and Q is a positive integer.

25. The base station device according to claim 22 or 23, wherein the first field is used for determining a first matrix used for determining a precoding matrix of the first radio signal; the second domain is used for determining M second matrixes, frequency resources occupied by the first wireless signals are divided into P frequency regions, and the M second matrixes correspond to M frequency regions in the P frequency regions in a one-to-one mode; m is a positive integer, and P is a positive integer greater than or equal to M.

26. The base station device according to claim 22 or 23, wherein said second sending module is further configured to send downlink information; wherein the downlink information is used to determine at least one of { the first time window, the second time window, a ratio of a time length of the first time window to a time length of the second time window }.

27. The base station device according to claim 22 or 23, further comprising the following modules:

a fourth processing module: for performing a second reference signal;

28. The base station device according to claim 22 or 23, further comprising the following modules:

a second receiving module: used for receiving the upstream information;