CN109964416B - A user equipment, method and apparatus in a base station for multi-antenna transmission - Google Patents

Abstract

The invention discloses a method and device in a user equipment, a base station for multi-antenna transmission. As an embodiment, the UE monitors the first signaling in the first time window, and monitors the second signaling in the second time window; and operates the first wireless signal. The first time window and the second time window are mutually orthogonal in the 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. The first wireless signals are respectively transmitted by the L antenna ports. The operation is receiving, or the operation is sending. The present invention can reduce the number of blind detections by the UE, while ensuring the quality of transmission.

Description

A user equipment, method and apparatus in a base station for multi-antenna transmission

technical field

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

Background technique

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

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

SUMMARY OF THE INVENTION

The inventor found through research that in order to reduce the control signaling overhead required to indicate the transmission of the precoding matrix, the transmission precoding matrix can be decomposed into the product of two matrices, the first matrix is non-frequency selective (same on all subcarriers) And long-term slow-changing, can be updated in a longer period, using more bits to quantize; the second matrix is frequency selective (different from each other in different subbands) and fast-changing, it needs to be shorter period, but can be quantized with fewer bits. In this way, by using different numbers of quantization bits to indicate two matrices with different update periods, the overall signaling overhead for the uplink precoding matrix can be greatly reduced, and the performance of uplink precoding can be guaranteed at the same time.

Since the update rate of the first matrix is relatively slow, it does not need to be present in all DCIs. The payload size of the DCI including the first matrix will be larger than the payload size of the DCI not including the first matrix, resulting in two different DCI payload sizes. Different DCI load sizes will cause the UE (User Equipment, user equipment) to need more times of blind detection when monitoring DCI, which increases the complexity of blind detection, which is to be avoided in system design.

In view of the above problems, the present application discloses a solution. It should be noted that although the original motivation of this application is for uplink precoding, this application is also applicable to downlink precoding. In the case of no conflict, the embodiments in the UE of the present application and the features in the embodiments may be applied in the base station, and vice versa. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict.

The present application discloses a method used in a UE for multi-antenna transmission, which includes the following steps:

- Step A. Monitoring the first signaling in the first time window and monitoring the second signaling in the second time window;

- Step B. Operate the first wireless signal.

Wherein, the first time window and the second time window are orthogonal to each other in the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The operation is receiving, or the operation is sending.

As an embodiment, the payload size of the first signaling and the 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-embodiment of the foregoing embodiment, all the bits include {information bits, CRC (Cyclic Redundancy Check, Cyclic Redundancy Check) bits}.

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

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

As a sub-embodiment of the above-mentioned embodiment, all the bits include padding bits.

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

As an embodiment, the advantage of the above method is that the first domain and the second domain can respectively correspond to the non-frequency-selective, slowly changing part, and frequency-selective, The fast changing part. By indicating the first domain and the second domain separately, the respective characteristics of the two parts can be adapted more flexibly. The non-frequency selective, slowly changing part can be updated in a longer period, so the first field does not need to appear in the second signaling, which reduces the load size of the second signaling ( payload size), thereby reducing the overall signaling overhead.

As an embodiment, the monitoring refers to: the UE performs BD (Blind Decoding, blind detection) on the corresponding signaling according to the load size of the corresponding signaling.

As an embodiment, another advantage 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 The UE only needs to monitor the first signaling or the second signaling with one payload size at any moment, which reduces the processing complexity of the UE.

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

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

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

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

As an embodiment, any one of the K fields includes {resource allocation field, MCS (Modulation and Coding Scheme, modulation and coding scheme) field, RV (Redundancy Version, redundancy version) field, NDI (New Data Indicator, new data) field Indication) field, one or more of HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) process ID field, transmission power control field}.

As an embodiment, the antenna port is formed by multiple physical antennas through antenna virtualization (Virtualization), and the mapping coefficients from the multiple physical antennas to the antenna port form a beamforming vector.

As an embodiment, that a given field is used to form a given antenna port means that the given field is used to generate 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 the above embodiment, the beamforming vector is generated by the product of an analog beamforming matrix and a digital beamforming vector, and the given field is used to generate {the given field at least one of the analog beamforming matrix corresponding to a given antenna port and the digital beamforming vector} corresponding to the given antenna port.

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

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

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

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

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

As an embodiment, the payload size of the first signaling is equal to the 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 DCI (Downlink Control Information, downlink control information) used for a downlink grant (Downlink Grant), and the operation is receiving.

As an embodiment, the first signaling and the second signaling are respectively DCI for uplink grant (Uplink Grant), and the operation is sending.

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 above embodiment, the scheduling information includes at least one of {occupied time domain resources, occupied frequency domain resources, 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 (ie, a downlink channel that can only be used to carry physical layer signaling).

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

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

As an embodiment, the first wireless signal is transmitted on a physical layer data channel.

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is PDSCH (Physical Downlink Shared Channel, 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, short PDSCH), and the operation is reception.

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is a PUSCH (Physical Uplink Shared Channel, physical uplink shared channel), and the operation is sending.

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

As an embodiment, the first field includes a first TPMI (Transmitted Precoding Matrix Indicator, transmitted precoding matrix identifier).

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

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

As a sub-embodiment of the foregoing embodiment, the second TPMI is a sub-band TPMI, the frequency resource occupied by the first wireless signal is divided into multiple frequency regions, and the second TPMI only A precoding matrix used to determine the first wireless signal over part of the frequency region.

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

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

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

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

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

As an embodiment, the fact that the first wireless signal is respectively transmitted by the L antenna ports means: the first wireless signal includes L sub-signals, and the L sub-signals are respectively transmitted by the L antenna ports .

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

As a sub-embodiment of the above 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 first signaling in the second time window. Blind detection of the payload size of the second signaling.

As an embodiment, the advantage of the above method is that within a given time window, the UE only needs to perform blind detection with one load size, thereby avoiding the need for the first signaling and the second signaling to perform blind detection. The complexity of blind detection is increased due to different payload sizes.

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

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

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

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

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

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

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

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

Specifically, according to an aspect of the present application, the operation is to transmit, 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 above embodiment, the RS port information includes {occupied time domain resources, occupied frequency domain resources, RS pattern (pattern), RS sequence, CS (Cyclic Shift, cyclic shift), At least one of OCC (Orthogonal Cover Code, orthogonal mask)}.

As an embodiment, the L reference signals include DMRS (DeModulation Reference Signals, 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 following steps:

- Step B0. Receive Q reference signals.

Wherein, the operation is receiving, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are respectively sent by the Q antenna ports. The 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 include DMRS.

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

As an embodiment, the Q reference signals include CSI-RS (Channel State Information Reference Signals, 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.

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

As a sub-embodiment of the foregoing embodiment, the channel parameter is CIR (Channel ImpulseResponse, channel impulse response).

Specifically, according to an 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, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and M in the P frequency regions Each of the frequency regions is in one-to-one correspondence. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

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

As an example, the P is equal to the M.

As an example, the P is greater than the 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 including different numbers of subcarriers.

As an embodiment, the P frequency regions are orthogonal to each other in the frequency domain, that is, there is no subcarrier belonging to two different frequency regions at the same time.

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

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

As an embodiment, the precoding matrix of the first wireless signal in any one of the M frequency regions is obtained by multiplying 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 group includes R the antenna ports, the number of columns of the second matrix is equal to the R, and the P times Let the R equal the L. The P antenna port groups are in one-to-one correspondence with the P frequency regions, and a wireless signal sent by any one of the antenna port groups does not occupy frequency resources outside the corresponding frequency region.

As a sub-embodiment of the foregoing embodiment, the first wireless signal is transmitted by the corresponding antenna port group in the frequency region.

As a sub-embodiment of the foregoing embodiment, the M antenna port groups in the P antenna port groups correspond to the M second matrices in one-to-one correspondence, and the first matrices and the second matrices are in phase with each other. A reference matrix is obtained by multiplying, and the R columns in the reference matrix are respectively the beamforming vectors of the R antenna ports included in the corresponding antenna port group.

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

As a sub-embodiment of the foregoing embodiment, 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 respectively the first matrices.

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-mentioned embodiment, the columns in the second matrix constitute the digital beamforming vectors of the antenna ports in the corresponding antenna port group.

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

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

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

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

As an embodiment, the number of matrices included in the first candidate matrix set is greater than the number of matrices included in the second candidate matrix set.

As an embodiment, the number of matrices included in the first candidate matrix set is equal to the number of matrices included in the second candidate matrix set.

As an embodiment, the number of matrices included in the first candidate matrix set is smaller than the number of matrices included in the second candidate matrix set.

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 above embodiment, the channel parameters corresponding to the M antenna port groups constitute M target channel matrices, and measurements based on the Q reference signals are used to determine a reference channel matrix, and the reference channel matrix The M target channel matrices are obtained by multiplying the M second matrices respectively.

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 following steps:

- Step A0. Receive downlink information.

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

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 RRC (Radio Resource Control, radio resource control) signaling.

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

As an embodiment, the downlink information is common to cells.

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

Specifically, according to an aspect of the present application, it is characterized in that it further comprises the following steps:

- Step C. Operate the second reference signal.

Wherein, the measurement based on the second reference signal is 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, sounding reference signal), and the operation is sending.

As an embodiment, the second reference signal includes CSI-RS, and the operation is receiving.

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

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

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

As an embodiment, the P1 first channel matrices are used to generate the first matrix, the first matrix is one matrix in the first set of candidate matrices, and the first domain includes the first matrix The index of a matrix in the first set of candidate matrices.

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

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

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

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

As an example, the P1 is smaller 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.

Specifically, according to an aspect of the present application, it is characterized in that it further comprises the following steps:

- Step D. Sending upstream information.

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

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

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

As an embodiment, the measurement based on the second reference signal is used to determine the P1 first channel matrices, and the P1 first channel matrices are used to generate the uplink information.

As an embodiment, the uplink information includes quantization information of P2 first channel matrices, the P2 first channel matrices are a subset of the P1 first channel matrices, and the P2 is less than or equal to the Positive integer of P1.

As an embodiment, the uplink information includes an index of each of the P2 first quantization matrices in the third candidate matrix set, and the P2 first quantization matrices are respectively composed of the P2 first quantization matrices The first channel matrix is obtained by quantization, and the first quantization matrix is a matrix in 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, the first matrix is one matrix in the first candidate matrix set, and the first domain includes the first matrix The index of a matrix in the first set of candidate matrices.

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

As an embodiment, the M2 first quantization matrices in the P2 first quantization matrices are respectively used to generate M2 second matrices, and the M2 second matrices are the result of the M second matrices. A subset, the M2 is a positive integer less than or equal to M. The second matrix is a matrix in the second candidate matrix set, and the second domain includes the second matrix in the second candidate matrix set of each of the M second matrices. index.

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 one by one Correspondingly, the S vector groups and the S parameter groups are respectively used to generate S composite vectors, and the S composite 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-embodiment of the above embodiment, the vectors in the S vector groups belong to a candidate vector set, and the candidate vector set includes a positive integer number of vectors.

As a sub-embodiment of the above embodiment, the given synthetic vector is obtained by adding the vectors in the given vector group after weighting the parameters in the given parameter group, wherein the given synthetic vector is the S synthetic vectors Any one of, the given vector group is the vector group used to generate the given composite vector among the S vector groups, and the given parameter group is the S parameter group the set of parameters used to generate the given composite vector.

As a sub-embodiment of the above embodiment, the S composite vectors are divided into P2 composite vector groups, each of the composite vector groups includes a positive integer number of the composite vectors, the P2 composite vector groups and the The P2 first quantization matrices are in one-to-one correspondence, and the first quantization matrices are composed of the composite vectors in the corresponding composite 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 foregoing 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, uplink control information).

As an embodiment, the uplink information is transmitted on an uplink physical layer control channel (ie, an uplink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer control channel is PUCCH (PhysicalUplink Control Channel, physical uplink control channel).

As an embodiment, the uplink information is transmitted on an uplink physical layer data channel (that is, 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, physical uplink shared channel).

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

- Step A. Sending the first signaling in the first time window and sending the second signaling in the second time window;

- Step B. Execute the first wireless signal.

Wherein, the first time window and the second time window are orthogonal to each other in the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The execution is sending, or the execution is receiving.

As an embodiment, the payload size of the first signaling is larger than the 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 DCI for downlink grant (Downlink Grant), and the execution is sending.

As an embodiment, the first signaling and the second signaling are respectively DCI for uplink grant (Uplink Grant), and the execution is receiving.

As an embodiment, the first wireless signal is transmitted on a physical layer data channel.

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), and the execution is sending.

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

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is a PUSCH (Physical Uplink Shared Channel, physical uplink shared channel), and the execution is receiving.

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

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

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

- Step B0. Sending Q reference signals.

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

Specifically, according to an 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, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and M in the P frequency regions Each of the frequency regions is in one-to-one correspondence. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

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

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

- Step A0. Send downlink information.

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

Specifically, according to an aspect of the present application, it is characterized in that it further comprises the following steps:

- Step C. Execute the second reference signal.

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

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

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

As an embodiment, the second reference signal includes a DMRS. The execution is receiving; or the execution is sending.

Specifically, according to an aspect of the present application, it is characterized in that it further comprises the following steps:

- Step D. Receiving upstream information.

Wherein, the uplink information is used to determine at least one of {the first field, the second field}, and the execution is sending.

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

The first receiving module: used to monitor the first signaling in the first time window, and monitor the second signaling in the second time window;

The first processing module: used to operate the first wireless signal.

Wherein, the first time window and the second time window are orthogonal to each other in the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The operation is receiving, or the operation is sending.

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

As an embodiment, the foregoing 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 receiving, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are respectively sent by the Q antenna ports. The Q is a positive integer.

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

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

As an embodiment, the above-mentioned user equipment for multi-antenna transmission is characterized in that it further includes the following modules:

Second processing module: used to operate the second reference signal.

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

As an embodiment, the above-mentioned user equipment for multi-antenna transmission is characterized in that it further includes the following modules:

The first sending module: used for sending uplink information.

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

The present application discloses a base station device used for multi-antenna transmission, which includes the following modules:

The second sending module: used to send the first signaling in the first time window, and send the second signaling in the second time window;

The third processing module: used to execute the first wireless signal.

Wherein, the first time window and the second time window are orthogonal to each other in the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The execution is sending, or the execution is receiving.

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

As an embodiment, the foregoing 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 sending, the first field in the first signaling is used to form Q antenna ports, and the Q reference signals are respectively sent by the Q antenna ports. The Q is a positive integer.

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

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

As an embodiment, the above-mentioned base station device for multi-antenna transmission is characterized in that it further includes the following modules:

Fourth processing module: used to execute the second reference signal.

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

As an embodiment, the above-mentioned base station device for multi-antenna transmission is characterized in that it further includes the following modules:

The second receiving module: used to receive uplink information.

Wherein, the uplink information is used to determine at least one of {the first field, the second field}, and the execution is sending.

As an embodiment, compared with the traditional solution, the present application has the following advantages:

-. By decomposing the precoding matrix into the product of the non-frequency selective first matrix and the frequency selective second matrix, and using different update periods and quantization precisions for the first matrix and the second matrix, the frequency selection is reduced Signaling overhead required for precoding.

-. Different load sizes are designed for the DCI carrying the first matrix information and the DCI not carrying the first matrix information, so as to avoid the waste of DCI overhead.

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

Description of drawings

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

FIG. 1 shows a flowchart of wireless transmission according to an embodiment of the present application;

FIG. 2 shows a flowchart of wireless transmission according to another embodiment of the present application;

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

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

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

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

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

FIG. 8 shows a schematic diagram of resource mapping of L reference signals in 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;

10 shows a structural block diagram of a processing apparatus used in a UE according to an embodiment of the present application;

FIG. 11 shows a structural block diagram of a processing apparatus used in a base station according to an embodiment of the present application.

Example 1

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

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

For U2, the downlink information is received in step S201; the second reference signal is sent in step S202; the first signaling is monitored in the first time window in step S21, and the second signaling is monitored in the second time window; In step S22, the first wireless signal is sent.

In Embodiment 1, the first time window and the second time window are orthogonal to each other in the 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 U2 is used to form the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is The U2 is used to form the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The first wireless signal includes L reference signals, and the L reference signals are respectively transmitted by the L antenna ports. The downlink information is used by the U2 to determine at least one of {the first time window, the second time window, the ratio of the time length of the first time window and the time length of the second time window}. one. 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 a sub-embodiment 1 of embodiment 1, the first domain is used by the U2 to determine a first matrix, and the first matrix is used by the U2 to determine a precoding matrix of the first wireless signal. The second domain is used by the U2 to determine M second matrices, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and the P frequency regions The M frequency regions in are in one-to-one correspondence. 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 1 of embodiment 1, the second matrix is used by the U2 to determine a precoding matrix of the first wireless signal in the corresponding frequency region.

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

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the P is greater than the 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, the precoding matrix of the first wireless signal is the same on different sub-carriers in the same frequency region.

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

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the precoding matrix of the first wireless signal in any one of the M frequency regions is composed of the first matrix and the corresponding is obtained by the product of the 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 group includes the R antenna ports, and the columns of the second matrix The number is equal to the R, and the P times the R equals the L. The P antenna port groups are in one-to-one correspondence with the P frequency regions, and a wireless signal sent by any one of the antenna port groups does not occupy frequency resources outside the corresponding frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the antenna port is formed by multiple physical antennas through antenna virtualization (Virtualization), and the mapping coefficients of the multiple physical antennas to the antenna port are composed of Beamforming vector. The M antenna port groups in the P antenna port groups are in one-to-one correspondence with the M second matrices, and the first matrix and the second matrix are multiplied to obtain a reference matrix, in which the reference matrix is The R columns of are respectively the beamforming vectors of the R antenna ports included in the corresponding antenna port group.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the first matrix is a matrix in a first candidate matrix set, and the first domain includes the first matrix in the first candidate matrix set where the first candidate matrix set includes a positive integer number of matrices.

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

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

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

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

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

As a 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} kind.

As a sub-embodiment 7 of Embodiment 1, the antenna ports are formed by multiple physical antennas through antenna virtualization (Virtualization), and mapping coefficients from the multiple physical antennas to the antenna ports form a beamforming vector.

As a sub-embodiment 8 of Embodiment 1, that a given field is used to form a given antenna port means that the given field is used to generate 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 8 of embodiment 1, the beamforming vector is generated by the product of an analog beamforming matrix and a digital beamforming vector, and the given field is used for At least one of {the analog beamforming matrix corresponding to the given antenna port, the digital beamforming vector corresponding to the given antenna port} is generated.

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

As a sub-embodiment 9 of Embodiment 1, that a given field is used to form a given antenna port means that 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 the product of an analog beamforming matrix and a digital beamforming vector, and the given field indicates {the 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 the product of an analog beamforming matrix and a digital beamforming vector, and the first field indicates the the analog beamforming matrix corresponding to the L antenna ports, and the second field indicates the digital beamforming vector corresponding to the L antenna ports.

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

As a sub-embodiment 11 of Embodiment 1, the first signaling and the second signaling are DCIs for uplink grants (Uplink Grants), respectively.

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

As a 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 resources, occupied frequency domain resources, MCS, HARQ process number, RV, NDI} .

As a sub-embodiment 14 of Embodiment 1, the first signaling and the second signaling are respectively transmitted on a downlink physical layer control channel (ie, a downlink channel that can only be used to carry 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 a 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 sPUSCH.

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

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

As a sub-embodiment 17 of Embodiment 1, the second field includes 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 TPMI, and the frequency resource occupied by the first wireless signal is divided into multiple frequency regions, so The second TPMI is used by the U2 to determine the precoding matrix of the first wireless signal only in part of the frequency region.

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, the K is not equal to the M.

As a sub-embodiment 18 of Embodiment 1, the fact that the first wireless signal is respectively transmitted by the L antenna ports means: the first wireless signal includes L sub-signals, and the L sub-signals are respectively transmitted by the L antenna ports. L antenna ports transmit.

As a sub-embodiment 19 of Embodiment 1, the 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 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 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 reception based on blind detection, that is, receiving a signal in a given time window and performing a decoding operation, and determining that the reception is successful if the decoding is correct according to the check bits, Otherwise, it is judged that the reception fails. The given time window is 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 in the second time window Blind detection is performed based on the payload size of the second signaling.

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

As a 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 {occupied time domain resources, occupied frequency domain resources, RS pattern (pattern), RS sequence, CS (Cyclic Shift, Circular displacement), at least one of OCC (Orthogonal Cover Code, orthogonal mask)}.

As a sub-embodiment 25 of Embodiment 1, the L reference signals include DMRS.

As a sub-embodiment 26 of Embodiment 1, the downlink information is carried by high-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 downlink information is semi-statically configured.

As a sub-embodiment 28 of Embodiment 1, the downlink information is common to cells.

As a sub-embodiment 29 of Embodiment 1, the downlink information is 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 includes a DMRS.

As a sub-embodiment 32 of Embodiment 1, the measurement based on the second reference signal is used by the N1 to determine P1 first channel matrices, and the P1 first channel matrices are used by the N1 to determine {the at least one of the first field and the second field}, and 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, the P1 is greater than the P.

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

As a sub-embodiment of sub-embodiment 32 of embodiment 1, the P1 is smaller than the P.

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

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

As a sub-embodiment 35 of the embodiment 1, the block F1 in FIG. 1 exists, and the block F2 does not exist.

As a sub-embodiment 36 of the embodiment 1, the block F1 in FIG. 1 does not exist, and the block F2 exists.

As a sub-embodiment 37 of the embodiment 1, neither block F1 nor block F2 in FIG. 1 exists.

Example 2

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

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

For U4, the downlink information is received in step S401; the second reference signal is received in step S402; the uplink information is sent in step S403; the first signaling is monitored in the first time window in step S41, and in the second time window monitor the second signaling in step S42; receive Q reference signals in step S42; and receive the first wireless signal in step S43.

In Embodiment 2, the first time window and the second time window are orthogonal to each other in the 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 N3 is used to form the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is The N3 is used to form the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The 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 respectively sent by the Q antenna ports. The 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, the ratio of the time length of the first time window and the time length of the second time window}. one. The measurement based on the second reference signal is used by the U4 to determine the uplink information, and the uplink information is used by the N3 to determine at least one of {the first field, the second field}.

As a sub-embodiment 1 of embodiment 2, the first domain is used by the N3 to determine a first matrix, and the first matrix is used by the N3 to determine a precoding matrix of the first wireless signal. The second domain is used by the N3 and the U4 to determine M second matrices, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and the The M frequency regions among the P frequency regions are in one-to-one correspondence. 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 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 in the corresponding frequency region.

As a sub-embodiment of sub-embodiment 1 of embodiment 2, the antenna port is formed by multiple physical antennas through antenna virtualization (Virtualization), and the mapping coefficients of the multiple physical antennas to the antenna port are composed of Beamforming vector. The number of columns of the first matrix is equal to the Q, and the columns of the first matrix are 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 DCIs for downlink grants (Downlink Grant), respectively.

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 PDSCH.

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

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

As a sub-embodiment 5 of the 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 {occupied time domain resources, occupied frequency domain resources, RS pattern (pattern), RS sequence, CS (Cyclic Shift, Circular displacement), at least one of OCC (Orthogonal Cover Code, orthogonal mask)}.

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

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

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

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

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

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

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

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

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

As a sub-embodiment of sub-embodiment 13 of embodiment 2, the frequency domain resources occupied by the second reference signal are divided into P1 frequency regions, the second reference signal is respectively sent by a positive integer number of antenna ports, based on the The measurement of the second reference signal is used by the U4 to determine the channel parameters corresponding to the positive integer number of antenna ports in the P1 frequency regions, and the positive integer number of antenna ports are in the P1 frequencies The channel parameters corresponding to the 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 a sub-embodiment 14 of embodiment 2, the uplink information indicates at least one of {the first domain and the second domain}.

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

As a sub-embodiment 16 of Embodiment 2, the uplink information includes quantization information of P2 first channel matrices, the P2 first channel matrices are a subset of the P1 first channel matrices, and the P2 is A positive integer less 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 (ie, 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 PUCCH.

As a sub-embodiment 20 of Embodiment 2, the uplink information is transmitted on an uplink physical layer data channel (that is, 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 in FIG. 2 all exist.

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

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

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

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

As a sub-embodiment 26 of the embodiment 2, the blocks F3 and F4 in FIG. 2 do not exist, and the block F5 exists.

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

As a sub-embodiment 28 of the embodiment 2, block F3, block F4 and block F5 in FIG. 2 do not exist.

Example 3

Embodiment 3 illustrates a schematic diagram of resource mapping of the first time window and the second time window in the 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, the UE monitors the first signaling in the first time window, and in the second time window Monitor the second signaling. 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 field. The first time window includes T1 time units, the second time window includes T2 time units, and T1 and T2 are positive integers respectively.

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

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

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

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

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

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

As a sub-embodiment 7 of the embodiment 3, the T1 is smaller than the T2.

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

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

As a sub-embodiment 10 of Embodiment 3, the 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 reception based on blind detection, that is, receiving a signal in a given time window and performing a decoding operation, if it is determined that the decoding is correct according to the check bits, it is judged that the reception is successful, Otherwise, it is judged that the reception fails. The given time window is 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 in the second time window Blind detection is performed based on the payload size of the second signaling.

Example 4

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

In Embodiment 4, the first signaling includes {first domain, second domain, K domains other than the first domain and the second domain}. The first field indicates a first TPMI, and the first TPMI is used to determine a first matrix, and the first matrix is used to determine a precoding matrix of the first wireless signal in this application. The second field includes a bitmap (C ₀ to C _P-1 ) composed of P bits and M second TPMIs. The M second TPMIs are used to determine M second matrices, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and the P frequency regions The M of the frequency regions correspond one-to-one. The P bits included in the second field respectively indicate whether each of the frequency regions in the P frequency regions belongs to the M frequency regions, and the state of M bits in the P bits is the first state, and the state of the remaining bits is the second state. The frequency region corresponding to the bit in the first state among the P bits belongs to the M frequency regions, and the frequency region corresponding to the bit in the second state among the P bits does not belong to the M 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 1 of the embodiment 4, the second matrix is used to determine a precoding matrix of the first wireless signal in the corresponding frequency region.

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

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

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the number of bits included in the first TPMI is three.

As a sub-embodiment of sub-embodiment 2 of embodiment 4, the number of bits included in the first TPMI is 4.

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

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

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

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

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

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the number of bits included in the second TPMI is three.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, the number of bits included in the second TPMI is 4.

As a sub-embodiment 4 of embodiment 4, the number of matrices included in the first candidate matrix set is greater than the number of matrices included in the second candidate matrix set.

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

As a sub-embodiment 6 of embodiment 4, the number of matrices included in the first candidate matrix set is smaller than the number of matrices included in the second candidate matrix set.

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

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

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

As a sub-embodiment 10 of embodiment 4, 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} kind.

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

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

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

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

Example 5

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

In Embodiment 5, the first signaling includes {first domain, K domains other than the first domain}. The first field indicates a first TPMI, and the first TPMI is used to determine a first matrix, and the first matrix is used to determine a precoding matrix of the first wireless signal in this application.

As a sub-embodiment 1 of Embodiment 5, 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} kind.

Example 6

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

In Embodiment 6, the second signaling includes {the second domain, K domains other than the second domain}. The second field includes a bitmap (C ₀ to C _P-1 ) composed of P bits and M second TPMIs. The M second TPMIs are used to determine the M second matrices. The frequency resource occupied by the first wireless signal in the present application is divided into P frequency regions, and the M second matrices correspond to the M frequency regions in the P frequency regions one-to-one. The P bits included in the second field respectively indicate whether each of the frequency regions in the P frequency regions belongs to the M frequency regions, and the state of M bits in the P bits is the first state, and the state of the remaining bits is the second state. The frequency region corresponding to the bit in the first state among the P bits belongs to the M frequency regions, and the frequency region corresponding to the bit in the second state among the P bits does not belong to the M 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 1 of the embodiment 6, the second matrix is used to determine a precoding matrix of the first wireless signal in the corresponding frequency region.

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

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

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the number of bits included in the second TPMI is 2.

As a sub-embodiment of sub-embodiment 2 of embodiment 6, the number of bits included in the second TPMI is three.

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

As a 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} kind.

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

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

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

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

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship between {first matrix, M second matrices} and the precoding matrix of the 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 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 the M frequency regions in the P frequency regions. The precoding matrix of the first wireless signal in any one of the M frequency regions is determined by {the first matrix, the corresponding second matrix}. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

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

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

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

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

As a sub-embodiment 5 of the embodiment 7, the number of subcarriers included in any two of the frequency regions is the same.

As a sub-embodiment 6 of the embodiment 7, there are at least two different frequency regions including different numbers of subcarriers.

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

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

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

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

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

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

As a sub-embodiment 13 of Embodiment 7, the second signaling in this 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 respectively sent by the L antenna ports, and the L antenna ports are also used to send the first wireless signal in the present application. The first matrix in this application and the M second matrices in this application are used to form the L antenna ports. The frequency resource occupied by the first wireless signal is divided into P frequency regions, the L antenna ports are divided into P antenna port groups, the antenna port group includes R the antenna ports, the P antenna ports The port groups are in one-to-one correspondence with the P frequency regions, and the wireless signals sent by any one of the antenna port groups do not occupy frequency resources outside the corresponding frequency regions. The L reference signals are divided into P reference signal groups, the reference signal groups include the R reference signals, the P reference signal groups are in one-to-one correspondence with the P antenna port groups, and the reference signal groups The R reference signals in the group are respectively transmitted by the R antenna ports in the corresponding antenna port group. The number of columns of the second matrix is equal to the R, and the P times the R equals the L.

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

As a sub-embodiment 2 of Embodiment 8, the antenna ports are formed by multiple physical antennas through antenna virtualization (Virtualization), and mapping coefficients from the multiple physical antennas to the antenna ports form a beamforming vector.

As a sub-embodiment 3 of Embodiment 8, the M antenna port groups in the P antenna port groups are in one-to-one correspondence with the M second matrices, and the first matrices and the second matrices are in phase with each other. A reference matrix is obtained by multiplying, and the R columns in the reference matrix are respectively the beamforming vectors of the R antenna ports included in the corresponding antenna port group.

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

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

As a 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 corresponding to the L antenna ports are the same.

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

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, the columns in the second matrix constitute the digital beamforming vectors of the antenna ports in the corresponding antenna port group.

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

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

As a sub-embodiment 7 of Embodiment 8, the P reference signal groups are in one-to-one correspondence with the P frequency regions, 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 this application.

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

Example 9

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

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

As a sub-embodiment 1 of Embodiment 9, the number of columns of the first matrix is equal to the Q, and the columns of the first matrix are the beamforming vectors corresponding to the Q antenna ports respectively.

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

As a third sub-embodiment of the ninth embodiment, any one of the Q reference signals adopts a DMRS pattern.

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

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

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

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

As a sub-embodiment of sub-embodiment 6 of embodiment 9, the L antenna ports are divided into P antenna port groups, and the M antenna port groups and the M antenna port groups in the P antenna port groups The second matrix is in one-to-one correspondence. The channel parameters corresponding to the M antenna port groups constitute M target channel matrices, and measurements based on the Q reference signals are used to determine a reference channel matrix, and the reference channel matrices are respectively the same as the M second matrices. Multiply to obtain the M target channel matrices. The M is a positive integer, and the P is a positive integer greater than or equal to the M.

Example 10

Embodiment 10 illustrates a structural 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 sending module 204 .

In Embodiment 10, the first receiving module 201 is configured to monitor the first signaling in the first time window, and monitor the second signaling in the second time window; the first processing module 202 is configured to operate the first wireless signal; The second processing module 203 is used for operating the second reference signal; the first sending module 204 is used for sending 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 the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The operation is receiving, the first sending module 204 exists, the measurement based on the second reference signal is used by the first sending module 204 to determine the uplink information, and the uplink information is used to determine {the at least one of the first domain and the second domain}; or the operation is to transmit, the first transmitting module 204 does not exist, and the measurement based on the second reference signal is used to determine {the first domain}. a domain, at least one of the second domain}.

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

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

As a sub-embodiment 3 of embodiment 10, 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 by the first processing module 202 to determine M second matrices, the frequency resource occupied by the first wireless signal is divided into P frequency regions, the M second matrices and the The M frequency regions among the P frequency regions are in one-to-one correspondence. 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 sending, the first field is used by the first processing module 202 to determine the first matrix, the first matrix is The first processing module 202 is configured to determine the precoding matrix of the first wireless signal.

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

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

As a sub-embodiment 6 of embodiment 10, the operation is sending, the first signaling includes the second field, {the second field in the first signaling, the second signaling at least one of the second fields in the } is used by the first processing module 202 to form the L antenna ports; or the first signaling includes {the first field, the second domain}, the second domain in the second signaling is used by the first processing module 202 to form the L antenna ports.

As a sub-embodiment 7 of the embodiment 10, the operation is receiving, and the first sending module 204 exists.

As a sub-embodiment 8 of the embodiment 10, the operation is sending, and the first sending module 204 does not exist.

Example 11

Embodiment 11 illustrates a structural block diagram of a processing apparatus used in a base station, as shown in FIG. 11 . In FIG. 11 , the base station apparatus 300 is mainly composed of a second sending 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 the first signaling in the first time window, and send the second signaling in the second time window; the third processing module 302 is configured to execute the first wireless signal; The fourth processing module 303 is used for executing the second reference signal; the second receiving module 304 is used for receiving uplink information. In FIG. 11, the second receiving module 304 is optional. If the second receiving module 304 exists, the connection line between the fourth processing module 303 and the second sending module 301 does not exist; if the second receiving module 304 does not exist Existing, the connection line between the fourth processing module 303 and the second sending module 301 becomes a solid line.

In Embodiment 11, the first time window and the second time window are orthogonal to each other in the 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 for forming the L antenna ports; or the first signaling includes the former of {the first field, the second field}, and the second field in the second signaling is used to form the the L antenna ports. The first wireless signals are respectively transmitted by the L antenna ports. The L is a positive integer. The execution is sending, the second receiving module 304 exists, the measurement based on the second reference signal is used to determine the uplink information, and the uplink information is used by the second sending module 301 to determine {the at least one of the first domain and the second domain}; or the execution is receiving, the second receiving module 304 does not exist, and the measurement based on the second reference signal is used by the second sending module 301 For determining at least one of {the first domain, the second domain}.

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

As a sub-embodiment 2 of Embodiment 11, the third processing module 302 is further configured to send Q reference signals. The execution is sending, 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 used by the Q antennas port send. The Q is a positive integer.

As a sub-embodiment 3 of embodiment 11, 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, the frequency resources occupied by the first wireless signal are divided into P frequency regions, the M second matrices and M in the P frequency regions Each of the frequency regions is in one-to-one correspondence. 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 11, the execution is sending, the first field is used by the third processing module 302 to determine a first matrix, and the first matrix is used by the third processing module 302 The three processing modules 302 are used to determine the precoding matrix of the first wireless signal, and the second domain 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. The downlink information is used to determine at least one of {the first time window, the second time window, the ratio of the time length of the first time window to the time length of the second time window} one.

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

As a sub-embodiment 6 of embodiment 11, the execution is sending, the first signaling includes the second field, {the second field in the first signaling, the second signaling At least one of the second fields in the {} is used by the third processing module 302 to form the L antenna ports; or the first signaling includes {the first field, the second domain}, the second domain in the second signaling is used by the third processing module 302 to form the L antenna ports.

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

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

Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific form of the combination of software and hardware. The UE or terminal in this application includes, but is not limited to, mobile phones, tablet computers, notebooks, network cards, Internet of Things communication modules, in-vehicle communication equipment, NB-IOT terminals, eMTC terminals and other wireless communication equipment. The base station or system equipment in this application includes but is not limited to wireless communication equipment such as macrocell base station, microcell base station, home base station, and relay base station.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (28)

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

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

-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;

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 }.

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

-step c. operating a second reference signal;

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

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

-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.

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

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

-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;

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 }.

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

-step c. performing a second reference signal;

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

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

-step d. receiving uplink information;

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

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

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 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;

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

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;

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

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

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;

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.

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;

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

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;

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

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