WO2018137228A1 - Method and device for multi-antenna transmission in user equipment and base station - Google Patents

Abstract

Disclosed are a method and device for multi-antenna transmission in a User Equipment (UE) and a base station. As an embodiment, a UE monitors first signaling in a first time window and monitors second signaling in a second time window; a first wireless signal is operated. The first time window and the second time window are orthogonal to each other in time domain; the first signaling comprises a first domain; the second signaling comprises a second domain. The first domain in the first signaling is used for forming L antenna ports. The first signaling comprises the second domain; at least one of {the second domain in the first signaling and the second domain in the second signaling} is used for forming the L antenna ports. The first wireless signal is sent by the L antenna ports separately. The operation is receiving, or the operation is transmitting. The present invention can reduce the number of UE blind detections and can ensure the quality of transmission at the same time.

Description

User equipment for multi-antenna transmission, method and device in base station Technical field

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

Background technique

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

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

Summary of the invention

The inventors have found through research that in order to reduce the control signaling overhead required to transmit the precoding matrix, the transmission precoding matrix can be decomposed into the product of two matrices, the first matrix being non-frequency selective (the same on all subcarriers) And long-term slow change, can be updated in a longer period, using more bits to quantize; the second matrix is frequency selective (different sub-bands are different) and fast-changing, need to be shorter The cycle is updated, but can be quantized with fewer bits. In this way, by using two different quantization bit numbers to indicate two matrices with different update periods, the overall overhead of signaling for the uplink precoding matrix is greatly reduced, and the performance of uplink precoding can be guaranteed.

Since the update rate of the first matrix is slow, it does not need to appear in all DCIs. The payload size of the DCI including the first matrix will be larger than the load size of the DCI that does not include the first matrix, which results in two different DCI load sizes. Different DCI load sizes may cause the UE (User Equipment) to require more blind detection times when monitoring DCI, which increases the complexity of blind detection, which is desirable in system design.

In response to the above problems, the present invention discloses a solution. It should be noted that although The initial motivation of the present invention is for uplink precoding, and the present invention is also applicable to downlink precoding. In the case of no collision, the features in the embodiments and embodiments in the UE of the present application can be applied to the base station, and vice versa. The features of the embodiments and the embodiments of the present application may be combined with each other arbitrarily without conflict.

The invention discloses a method used in a UE for multi-antenna transmission, which comprises the following steps:

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

- Step B. Operating the first wireless signal.

The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The operation is to receive, or the operation is to send.

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

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

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

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

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

As a sub-embodiment of the above embodiment, all of 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 above method is advantageous in that the first domain and the second domain Non-frequency selective, slowly varying portions and frequency selective, fast varying portions of the channels experienced by the first wireless signal may be respectively associated. By separately indicating the first domain and the second domain, the respective characteristics of the two parts can be more flexibly adapted. The non-frequency selective, slowly varying portion may be updated in a longer period, such that the first domain does not need to be present in the second signaling, thus reducing the load size of the second signaling ( The payload size), which reduces the overall signaling overhead.

As an embodiment, the monitoring means that the UE performs BD (Blind Decoding) 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 occurs only in the first time window, and the second signaling occurs only in the second time window, thus the The UE only needs to monitor the first signaling or the second signaling with a payload size at any one time, which reduces the processing complexity of the UE.

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

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

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

In one embodiment, the first signaling includes K domains outside the first domain and the second domain, the second signaling includes the K domains, and the K is a positive integer.

As an embodiment, any one of the K domains includes a {Resource Distribution Domain, MCS (Modulation and Coding Scheme) domain, RV (Redundancy Version) domain, and NDI (New Data Indicator, The new data indicates one or more of the domain, HARQ (Hybrid Automatic Repeat reQuest) process number field, and transmit power control field}.

As an embodiment, the antenna port is formed by multiple virtual antennas through antenna virtualization, and mapping coefficients of the plurality of physical antennas to the antenna port form a beamforming vector.

As an embodiment, the use of a given domain to form a given antenna port means that the given domain 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 a product of an analog beamforming matrix and a digital beamforming vector, and the given domain is used to generate {the given And determining at least one of the analog beam shaping matrix corresponding to the antenna port, and the digital beam shaping vector corresponding to the given antenna port.

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

As an embodiment, the use of a given domain to form a given antenna port means that the given domain 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 a product of an analog beamforming matrix and a digital beamforming vector, the given domain indicating {the given antenna port Corresponding at least one of the analog beam shaping matrix, the digital beam shaping vector corresponding to the given antenna port.

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

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

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

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

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

As an embodiment, the first signaling and the second signaling are respectively DCI (Downlink Control Information) for downlink grant, and the operation is reception.

As an embodiment, the first signaling and the second signaling are respectively DCIs for Uplink Grant, and the operation is sending.

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

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

As a sub-embodiment of the foregoing embodiment, the scheduling information includes at least one of {occupied time domain resources, occupied frequency domain resources, MCS, HARQ process numbers, 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).

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

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is sPDSCH (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), and the operation is transmission.

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

As an embodiment, the first domain includes a first TPMI (Transmitted Precoding Matrix Indicator).

As a sub-embodiment of the foregoing embodiment, the first TPMI is a broadband TPMI, and the first TPMI is used to determine a pre-determination of the first wireless signal on all subcarriers occupied by the first wireless signal. Encoding matrix.

As an embodiment, the second domain includes M second TPMIs, and the 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 is only Used to determine the first wireless signal on a portion of the frequency region Precoding matrix.

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

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

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

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

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

As an embodiment, the first wireless signal is separately sent by the L antenna ports, the first wireless signal includes L sub-signals, and the L sub-signals are respectively sent by the L antenna ports. .

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

As a sub-embodiment of the foregoing embodiment, the UE performs blind detection in the first time window by using a load size of the first signaling, where the UE is in the second time window. The load size of the two signaling is blindly detected.

As an embodiment, the above method has the advantage that the UE only needs to perform blind detection with a load size within a given time window, thereby avoiding the first signaling and the second signaling. Increased blind detection complexity due to different load sizes.

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

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

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

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

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

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

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

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

Specifically, according to an aspect of the present invention, 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 an embodiment, the first signaling indicates RS port information of the L reference signals.

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

As a sub-embodiment of the foregoing embodiment, the RS port information includes {occupied time domain resources, occupied frequency domain resources, RS patterns, RS sequences, CS (Cyclic Shift, cyclic shift amount), At least one of OCC (Orthogonal Cover Code).

As an embodiment, the L reference signals include DMRS (DeModulation Reference Signals).

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

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

- Step B0. Receive Q reference signals.

The operation is received, the first domain 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 comprise a DMRS.

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

As an embodiment, the Q reference signals include a CSI-RS (Channel State) Information Reference Signals, channel status information reference signals).

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

In one embodiment, the beamforming vector corresponding to any one of the antenna ports of any one of the L antenna ports and the antenna port of the Q antenna ports is different.

As an embodiment, the first domain is used to generate the beamforming vector corresponding to the Q antenna ports.

In one embodiment, the first domain indicates the beamforming vector corresponding to the Q antenna ports.

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

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

Specifically, according to an aspect of the invention, the first domain is used to determine a first matrix, the first matrix being 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. 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 on the corresponding frequency region.

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

As an embodiment, 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 each of the M frequency regions An index of the frequency region in the P frequency regions.

As an embodiment, the frequency region comprises 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 the number of subcarriers that are different.

As an embodiment, the P frequency regions are orthogonal to each other in the frequency domain, that is, there is no one subcarrier and belong to two different frequency regions.

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

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

In one embodiment, the precoding matrix of the first wireless signal on any one of the M frequency regions is obtained by multiplying the first matrix and the corresponding second matrix. .

As an embodiment, the L antenna ports are divided into P antenna port groups, the antenna port group includes R the antenna ports, and the number of columns of the second matrix is equal to the R, the P times Let R be equal to the L. The P antenna port groups and the P frequency regions are in one-to-one correspondence, and the wireless signals transmitted by any one of the antenna port groups do not occupy frequency resources other than the corresponding frequency regions.

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

As a sub-embodiment of the foregoing embodiment, the M antenna port groups of the P antenna port groups and the M second matrices are in one-to-one correspondence, and the first matrix and the second matrix phase Multiplying a reference matrix, 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 beam shaping matrices corresponding to the L antenna ports are the same.

As a sub-embodiment of the above embodiment, the mode corresponding to the L antenna ports The quasi-beamforming matrix is the first matrix, respectively.

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

As a sub-embodiment of the above embodiment, the columns in the second matrix constitute the digital beamforming vector of the antenna port 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 respectively the beamforming vectors corresponding to the Q antenna ports.

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

In one embodiment, the first matrix is a matrix in a first candidate matrix set, and the first domain includes an index of the first matrix in the first candidate matrix set, the first candidate matrix The set includes a positive integer matrix.

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

In one embodiment, the second matrix is one of a second candidate matrix set, and the second domain includes each of the M second matrices, the second matrix is in the second candidate matrix An index in the set, the second candidate matrix set comprising a positive integer number of matrices.

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

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

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

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

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

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

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

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

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

- Step A0. Receive downlink information.

The downlink information is used to determine at least the first time window, the second time window, a ratio of a length of time of the first time window to a 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) signaling.

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

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

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

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

- Step C. Operating 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), and the operation is transmission.

As an embodiment, the second reference signal comprises a CSI-RS, and the operation is reception.

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

As an embodiment, the measurement based on the second reference signal is used to determine P1 first channel matrices, the P1 first channel matrices being 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 resource occupied by the second reference signal is divided into P1 frequency regions, the second reference signal is separately sent by a positive integer number of antenna ports, and the measurement based on the second reference signal is used. Determining channel parameters corresponding to the positive integer number of antenna ports on the P1 frequency regions, where the channel parameters corresponding to the P1 frequency regions of the positive integer number of antenna ports respectively constitute the P1 The first channel matrix.

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

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

As an embodiment, the 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 M second matrices. A subset, the M1 being a positive integer less than or equal to M. The second matrix is one of the second candidate matrix sets, and the second domain includes each of the M second matrices, the second matrix is in the second candidate matrix set index.

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

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

As an embodiment, 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 invention, the method further includes the following steps:

- Step D. Send uplink information.

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

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

In one embodiment, the uplink information indicates an index of the first matrix in the first candidate matrix set, and each of the M3 second matrices is in the second candidate. At least one of the indexes} in the matrix set. 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.

In one 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 A positive integer of P1.

As an embodiment, the uplink information includes each of P2 first quantization matrices. An index of the first quantization matrix in a third candidate matrix set, wherein the P2 first quantization matrices are respectively quantized by the P2 first channel matrices, wherein the first quantization matrix is the third candidate A matrix in a set of matrices, the set of third candidate matrices comprising a matrix of positive integers.

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

In one embodiment, the P2 first quantization matrices are used to generate the first matrix, the first matrix is a matrix in the first candidate matrix set, and the first domain includes the first An index of a matrix in the first set of candidate matrices.

As a sub-embodiment of the above embodiment, an average 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 M second matrices. A subset, the M2 being a positive integer less than or equal to M. The second matrix is one of the second candidate matrix sets, and the second domain includes each of the M second matrices, the second matrix is in the second candidate matrix set index.

As an embodiment, the uplink information includes S index groups and S parameter groups, and the S index groups are used to determine S vector groups, the S vector groups and the S parameter groups. Correspondingly, the S vector groups and the S parameter groups are respectively used to generate S synthesis vectors, and the S synthesis 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 vector.

As a sub-embodiment of the above embodiment, a given composite vector is obtained by weighting the vectors in a given set of vectors by a parameter in a given set of parameters, wherein the given composite vector is the S composite vectors. Or any one of the S vector groups used to generate the given composite vector, the given parameter group being 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 synthetic vector groups and the P2 first quantization matrices are in one-to-one correspondence, the first quantization matrix The composite vector in the corresponding set of composite vectors is constructed as a column vector.

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

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

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

As an embodiment, the uplink information is transmitted on an uplink physical layer control channel (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 a PUCCH (Physical Uplink Control Channel).

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

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

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

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

- Step B. Execute the first wireless signal.

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

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

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

As an embodiment, the first signaling and the second signaling are respectively DCIs for Downlink Grant, and the execution is sending.

As an embodiment, the first signaling and the second signaling are respectively DCIs for Uplink Grant, and the execution is reception.

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 a PDSCH (Physical Downlink Shared Channel), and the execution is a transmission.

As a sub-embodiment of the foregoing embodiment, the physical layer data channel is sPDSCH (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), and the performing is receiving.

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

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

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

- Step B0. Send Q reference signals.

The performing is a sending, the first domain 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 invention, the first domain is used to determine a first matrix, the first matrix being 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. 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 that the first wireless signal is in the pair The precoding matrix on the frequency region that should be.

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

- Step A0. Send downlink information.

The downlink information is used to determine at least the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window. One.

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

- Step C. Perform a 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 comprises an SRS and the execution is reception.

As an embodiment, the second reference signal comprises a CSI-RS, and the performing is a transmission.

As an embodiment, the second reference signal comprises a DMRS. The execution is a reception; or the execution is a transmission.

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

- Step D. Receive uplink information.

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

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

a first receiving module, 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 is configured to operate the first wireless signal.

The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The operation is to receive, or the operation is to send.

As an embodiment, the foregoing user equipment for multi-antenna transmission is characterized in that the operation is transmission, the first wireless signal includes L reference signals, and the L reference signals are respectively 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. The operation is received, the first domain 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 user equipment for multi-antenna transmission described above 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. 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 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 the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window. One.

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

The second processing module is configured 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 foregoing user equipment for multi-antenna transmission is characterized in that it further includes the following modules:

The first sending module is configured to send uplink information.

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

The invention discloses a base station device used for multi-antenna transmission, which comprises the following modules:

a second sending module, configured to send the first signaling in the first time window, in the second time Sending second signaling in the window;

The third processing module is configured to execute the first wireless signal.

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

As an embodiment, the foregoing base station apparatus for multi-antenna transmission is characterized in that the performing is reception, 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. The performing is a sending, the first domain 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 base station apparatus 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. 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 the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window. One.

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

The fourth processing module is configured to execute the second reference signal.

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

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

The second receiving module is configured to receive uplink information.

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

As an embodiment, the present invention has the following advantages over the conventional solution:

- reducing the frequency selection 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 precision for the first matrix and the second matrix The signaling overhead required for sexual precoding.

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

By limiting the blind detection of DCI 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 low blind detection complexity is maintained.

DRAWINGS

Other features, objects, and advantages of the present invention will become apparent from the Detailed Description of Description

1 shows a flow chart of wireless transmission in accordance with one embodiment of the present invention;

2 shows a flow chart of wireless transmission in accordance with another embodiment of the present invention;

3 shows a schematic diagram of resource mapping of a first time window and a second time window in a time domain, in accordance with an embodiment of the present invention;

Figure 4 shows a schematic diagram of first signaling in accordance with one embodiment of the present invention;

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

Figure 6 shows a schematic diagram of second signaling in accordance with one embodiment of the present invention;

Figure 7 is a diagram showing the relationship between {first matrix, M second matrices} and a precoding matrix of a first radio signal, in accordance with one embodiment of the present invention;

8 is a diagram showing resource mapping of L reference signals in a time-frequency domain according to an embodiment of the present invention;

FIG. 9 is a schematic diagram showing resource mapping of Q reference signals in a time-frequency domain according to an embodiment of the present invention; FIG.

FIG. 10 is a block diagram showing the structure of a processing device for use in a UE according to an embodiment of the present invention;

Figure 11 is a block diagram showing the structure of a processing device for use in a base station in accordance with one embodiment of the present invention.

Example 1

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

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

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

In Embodiment 1, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used by the U2 to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is U2 is used to form the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is The U2 is used to form the L antenna ports. The first wireless signal is separately 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 {the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window} one. The measurement based on the second reference signal is used by the N1 to determine at least one of {the first domain, the second domain}.

As sub-embodiment 1 of embodiment 1, the first domain is used by the U2 to determine the first moment 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 radio signal are divided into P frequency regions, the M second matrices and the P frequency regions. The M frequency regions in the 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 the sub-embodiment 1 of Embodiment 1, the second matrix is used by the U2 to determine a precoding matrix of the first wireless signal on 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 the 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 the 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 the sub-embodiment 1 of Embodiment 1, the precoding matrix of the first radio signal is the same on different subcarriers of the same frequency region.

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

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

As a sub-embodiment of the sub-embodiment 1 of Embodiment 1, the L antenna ports are divided into P antenna port groups, the antenna port group includes R the antenna ports, and the columns of the second matrix The number is equal to the R, and the P is multiplied by the R equal to the L. The P antenna port groups and the P frequency regions are in one-to-one correspondence, and the wireless signals transmitted by any one of the antenna port groups do not occupy frequency resources other than the corresponding frequency regions.

As a sub-embodiment of the first embodiment of the first embodiment, the antenna port is formed by multiple virtual antennas through antenna virtualization, and mapping coefficients of the plurality of physical antennas to the antenna port are formed. Beamforming vector. The M antenna port groups of 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, where the reference matrix is The R columns are respectively the beamforming vectors of the R antenna ports included in the corresponding antenna port group.

As a sub-embodiment of the first embodiment of the first embodiment, 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 In the index, 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 of a second candidate matrix set, and the second domain includes each of the M second matrices An index of the second matrix in the second candidate matrix set, the second candidate matrix set comprising a positive integer number of matrices.

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

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

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

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

As a sub-embodiment 6 of the first embodiment, any one of the K domains includes one or more of a {resource allocation domain, an MCS domain, an RV domain, an NDI domain, a HARQ process number domain, and a transmission power control domain}. Kind.

As a sub-embodiment 7 of Embodiment 1, the antenna port is formed by a plurality of physical antennas through antenna virtualization, and mapping coefficients of the plurality of physical antennas to the antenna port constitute a beamforming vector.

As a sub-embodiment 8 of embodiment 1, the use of a given domain to form a given antenna port means that the given domain 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 a product of an analog beamforming matrix and a digital beamforming vector, the given domain being used Generating at least one of the analog beam shaping matrix corresponding to the given antenna port, the digital beam shaping vector corresponding to the given antenna port.

As a sub-embodiment of sub-embodiment 8 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the first domain being used Generating the analog beam shaping matrix corresponding to the L antenna ports, 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, the use of a given domain to form a given antenna port means that the given domain indicates a beamforming vector corresponding to the given antenna port. The given domain is the first domain or the second domain.

As a sub-embodiment of sub-embodiment 9 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the given domain indicating { Said analog beam shaping matrix corresponding to a given antenna port, at least one of said digital beam shaping vectors} corresponding to said given antenna port.

As a sub-embodiment of sub-embodiment 9 of embodiment 1, the beamforming vector is generated by a product of an analog beamforming matrix and a digital beamforming vector, the first domain indicating the The analog beam shaping matrix corresponding to the L antenna ports, the second domain indicating the digital beamforming vector corresponding to the L antenna ports.

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

As a sub-embodiment 11 of Embodiment 1, the first signaling and the second signaling are respectively DCIs for Uplink Grant.

As a sub-in 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 the sub-embodiment 13 of the embodiment 1, the scheduling information includes at least one of {occupied time domain resources, occupied frequency domain resources, MCS, HARQ process numbers, 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 the sub-embodiment 14 of the embodiment 1, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of the sub-embodiment 14 of the first embodiment, the downlink physical layer control channel is an 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 a 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 a first TPMI.

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

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

As a sub-embodiment of the sub-embodiment 17 of the first embodiment, the second TPMI is a sub-band TPMI, and the frequency resource occupied by the first wireless signal is divided into multiple frequency regions. The second TPMI is used by the U2 to determine a precoding matrix of the first wireless signal only on a portion 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 first wireless signal is separately sent by the L antenna ports, the first wireless signal includes L sub-signals, and the L sub-signals are respectively L antenna ports are sent.

As a sub-embodiment 19 of Embodiment 1, the payload size of the first signaling is greater than the payload size of the second signaling.

As a sub-embodiment 20 of Embodiment 1, the payload size of the first signaling is smaller than the 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 and performing a decoding operation in a given time window, and determining that the reception is successful if it is determined that the decoding is correct according to the check bit, Otherwise, the reception fails. The given time window is the first time window or the second time window.

As a sub-embodiment of the sub-embodiment 22 of the embodiment 1, the UE performs blind detection in the first time window with a load size of the first signaling, and the UE is in the second Blind detection is performed in the time window with the load 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 the sub-embodiment 24 of the embodiment 1, the RS port information includes {occupied time domain resources, occupied frequency domain resources, RS pattern, RS sequence, CS (Cyclic Shift, At least one of cyclic shift amount), OCC (Orthogonal Cover Code).

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

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

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

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

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

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

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

As a 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 { At least one of the first domain, the second domain, wherein 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, said P1 is equal to said P.

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

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

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

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

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

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

Example 2

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

For N3, the downlink information is transmitted in step S301; the second reference signal is transmitted in step S302; the uplink information is received in step S303; the first signaling is transmitted in the first time window in step S31, in the second time window Transmitting the second signaling; transmitting Q reference signals in step S32; transmitting 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 transmitted in step S403; the first signaling is monitored in the first time window in step S41, in the second time window Monitoring the second signaling; receiving Q reference signals in step S42; receiving 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 a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used by the N3 to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is N3 is used to form the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is The N3 is used to form the L antenna ports. The first wireless signal is separately 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 Transmitted by the Q antenna ports. The Q is a positive integer. The downlink information is used by the U4 to determine at least {the first time window, the second time window, a ratio of a length of time of the first time window to a 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 domain, the second domain}.

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 radio signal are divided into P frequency regions, the M second matrices and the The M frequency regions in 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 the 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 on the corresponding frequency region.

As a sub-embodiment of the first embodiment of the second embodiment, the antenna port is formed by multiple virtual antennas through antenna virtualization, and mapping coefficients of the plurality of physical antennas to the antenna port are formed. Beamforming vector. The number of columns of the first matrix is equal to the Q, and the columns of the first matrix are respectively the beamforming vectors corresponding to the Q antenna ports.

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 a sub-embodiment 2 of Embodiment 2, the first signaling and the second signaling are respectively DCIs for Downlink Grant.

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

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

As a sub-embodiment of sub-embodiment 3 of embodiment 2, the physical layer data channel is 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 Embodiment 2, the second signaling indicates RS port information of the Q reference signals.

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

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

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

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

As a sub-embodiment 9 of Embodiment 2, the first domain indicates the beamforming vector corresponding to the Q antenna ports.

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

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

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

As a sub-embodiment 12 of embodiment 2, the second reference signal comprises 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, the P1 being a positive integer.

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

As a sub-embodiment 15 of the second embodiment, 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, and 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 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 the sub-embodiment 19 of the embodiment 2, the uplink physical layer control channel is a PUCCH.

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

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

As sub-embodiment 21 of embodiment 2, block F3, block F4 and block F5 in Fig. 2 are present.

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

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

As sub-embodiment 24 of embodiment 2, block F3 and block F5 in Fig. 2 exist, and block F4 does not exist.

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

As sub-embodiment 26 of embodiment 2, block F3 and block F4 in Fig. 2 do not exist, and block F5 exists.

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

As sub-embodiment 28 of embodiment 2, block F3, block F4 and block F5 in Fig. 2 are not present.

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.

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

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

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

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

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

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

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

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

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

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

As a sub-embodiment 10 of Embodiment 3, a payload size of the first signaling is equal to a 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, and if it is determined that the decoding is correct according to the check bit, it is determined that the reception is successful, Otherwise, the reception fails. The given time window is the first time window or the second time window.

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

Example 4

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

In Embodiment 4, the first signaling includes {a first domain, a second domain, the first domain, and K domains outside the second domain}. The first domain indicates a first TPMI, the first TPMI being used to determine a first matrix, the first matrix being used to determine a precoding matrix of the first wireless signal in the present invention. The second domain includes a bitmap (C ₀ - 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 radio signal are divided into P frequency regions, the M second matrices and the P frequency regions The M frequency regions correspond one-to-one. The P bits included in the second domain respectively indicate whether the frequency region of each of the P frequency regions belongs to the M frequency regions, and the state of M bits in the P bits is first State, the state of the remaining bits is the second state. The frequency region corresponding to the bit in the first state in the P bit belongs to the M frequency regions, and the state in the P bits is the frequency region corresponding to the bit in the second state 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 Embodiment 4, the second matrix is used to determine a precoding matrix of the first wireless signal on the corresponding frequency region.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

As a sub-invention 10 of Embodiment 4, any one of the K domains includes one or more of a {resource allocation domain, an MCS domain, an RV domain, an NDI domain, a HARQ process number domain, and a transmission power control domain}. Kind.

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

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

As a sub-embodiment 13 of 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.

In Embodiment 5, the first signaling includes {first domain, K domains outside the first domain}. The first domain indicates a first TPMI, the first TPMI being used to determine a first matrix, the first matrix being used to determine a precoding matrix of the first wireless signal in the present invention.

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

Example 6

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

In Embodiment 6, the second signaling includes {second domain, K domains outside the second domain}. The second domain includes a bitmap (C ₀ - C _P-1 ) composed of P bits and M second TPMIs. The M second TPMIs are used to determine M second matrices. The frequency resource occupied by the first wireless signal in the present invention is divided into P frequency regions, and the M second matrix and the M frequency regions of the P frequency regions are in one-to-one correspondence. The P bits included in the second domain respectively indicate whether the frequency region of each of the P frequency regions belongs to the M frequency regions, and the state of M bits in the P bits is first State, the state of the remaining bits is the second state. The frequency region corresponding to the bit in the first state in the P bit belongs to the M frequency regions, and the state in the P bits is the frequency region corresponding to the bit in the second state 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 Embodiment 6, the second matrix is used to determine a precoding matrix of the first wireless signal on the corresponding frequency region.

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

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

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

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

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

As a sub-embodiment 3 of the embodiment 6, any one of the K domains includes one or more of a {resource allocation domain, an MCS domain, an RV domain, an NDI domain, a HARQ process number domain, and a transmission power control domain}. Kind.

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

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

As a sub-embodiment 6 of 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 exemplifies a relationship between {first matrix, M second matrices} and a precoding matrix of the first wireless signal, as shown in FIG.

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 matrix and the M frequency regions of the P frequency regions are in one-to-one correspondence. The precoding matrix of the first wireless signal on any one of the M frequency regions is determined by {the first matrix, the corresponding second matrix}. 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 first wireless signal is in the M frequency regions A precoding matrix on any one of the frequency regions in the domain is obtained from a product of the first matrix and the corresponding second matrix.

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

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

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

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

As sub-embodiment 6 of Embodiment 7, at least two different frequency regions include the number of subcarriers that are different.

As a sub-embodiment 7 of Embodiment 7, the P frequency regions are orthogonal to each other in the frequency domain, that is, there is no one subcarrier and belong to two different frequency regions.

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

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

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

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

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

As sub-embodiment 13 of embodiment 7, the second signaling in the present invention 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.

In Embodiment 8, the L reference signals are respectively transmitted by L antenna ports, and the L antenna ports are also used to transmit the first wireless signal in the present invention. The first matrix in the present invention and the M second matrices in the present invention are used to form the L antennas port. The frequency resources occupied by the first wireless signal are 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, and the P antennas The port group and the P frequency regions are in one-to-one correspondence, and the wireless signal transmitted by any one of the antenna port groups does not occupy the frequency resource other than the corresponding frequency region. The L reference signals are divided into P reference signal groups, the reference signal group includes R reference signals, and the P reference signal groups and the P antenna port groups are in one-to-one correspondence, and the reference signal The R reference signals in the group are respectively transmitted by R of the antenna ports in the corresponding antenna port group. The number of columns of the second matrix is equal to the R, and the P is multiplied by the R equal to the L.

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

As a sub-embodiment 2 of Embodiment 8, the antenna port is formed by a plurality of physical antennas through antenna virtualization, and mapping coefficients of the plurality of physical antennas to the antenna port constitute a beamforming vector.

As a sub-embodiment 3 of the embodiment 8, the M antenna port groups of the P antenna port groups and the M second matrices are in one-to-one correspondence, the first matrix and the second matrix phase Multiplying a reference matrix, 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 the sub-embodiment 3 of the embodiment 8, the first signaling in the present invention indicates that each of the M antenna port groups is in the P antenna port group. Index in .

As a sub-embodiment of sub-embodiment 3 of Embodiment 8, the second signaling in the present invention indicates that each of the M antenna port groups is in the P antenna port group. 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 the sub-embodiment 4 of the embodiment 8, the analog beam shaping matrices corresponding to the L antenna ports are the same.

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

As a sub-embodiment of the sub-embodiment 4 of the embodiment 8, the antenna port group is different. The antenna ports in the corresponding ones correspond to different digital beamforming vectors.

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

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

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

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

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

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

Example 9

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

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

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

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

As a sub-embodiment 3 of the embodiment 9, the reference signal of any one of the Q reference signals adopts a pattern of DMRS.

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

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

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

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

As a sub-embodiment of the sub-embodiment 6 of the embodiment 9, the L antenna ports are divided into P antenna port groups, M of the P antenna port groups, and the M The second matrix corresponds one by one. The channel parameters corresponding to the M antenna port groups constitute M target channel matrices, and the measurement based on the Q reference signals is used to determine a reference channel matrix, and the reference channel matrix and the M second matrix phases respectively Multiply 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 exemplifies a structural block diagram of a processing device for use in a UE, as shown in FIG. In FIG. 10, the UE device 200 is mainly composed of a first receiving module 201, a first processing module 202, a second processing module 203, and a first transmitting module 204.

In the 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 configured to operate the second reference signal; the first sending module 204 is configured to send uplink information. In Figure 10, the first transmitting module 204 is optional.

In Embodiment 10, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The operation is received, the first sending module 204 exists, and the first sending module 204 is used to determine the uplink information based on the measurement of the second reference signal, where the uplink information is used to determine At least one of the first domain, the second domain}; or the operation is a transmission, the first sending module 204 does not exist, and the measurement based on the second reference signal is used to determine {the first At least one of a domain, the second domain}.

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

As a sub-embodiment 2 of the embodiment 10, the first processing module 202 is further configured to receive Q reference signals. The operation is received, the first domain 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 domain is used to determine a first matrix, the first matrix being 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 resources occupied by the first radio signal are divided into P frequency regions, the M second matrices and the The M frequency regions in 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 transmission, and the first domain is used by the first processing module 202 to determine the first matrix, and the first matrix is The first processing module 202 is configured to determine a precoding matrix of the first wireless signal.

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

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

As sub-embodiment 6 of embodiment 10, the operation is to send, the first signaling includes the second domain, {the second domain in the first signaling, the second signaling At least one of the second domains} is used by the first processing module 202 to form the L antenna ports; or the first signaling includes {the first domain, the second In the former of the domain, the second domain in the second signaling is used by the first processing module 202 to form the L antenna ports.

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

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

Example 11

Embodiment 11 exemplifies a structural block diagram for a processing device in a base station, as shown in FIG. 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 the 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 configured to execute the second reference signal, and the second receiving module 304 is configured to receive the 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 There is a line connecting the fourth processing module 303 and the second transmitting module 301 to a solid line.

In Embodiment 11, the first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The performing is a 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 Said first domain, at least one of said second domain; or said performing is receiving, said second receiving module 304 is absent, said second transmitting module 301 based on said measurement of said second reference signal Used to determine at least one of {the first domain, the second domain}.

As a sub-embodiment 1 of Embodiment 11, 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.

As a sub-embodiment 2 of the embodiment 11, the third processing module 302 is further configured to send Q reference signals. The performing is a sending, the first domain 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. The port is sent. The Q is a positive integer.

As a sub-embodiment 3 of embodiment 11, the first domain is used to determine a first matrix, the first matrix being used to determine a precoding matrix of the first wireless signal. The second domain is For determining M second matrices, the frequency resources occupied by the first radio signal are divided into P frequency regions, and the M second matrices and the M frequency regions of the P frequency regions are A 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 performing is transmission, the first domain is used by the third processing module 302 to determine a first matrix, and the first matrix is The three processing module 302 is configured to determine a 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 a sub-embodiment 4 of the embodiment 11, the second sending module 301 is further configured to send downlink information. The downlink information is used to determine at least the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window. One.

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

As sub-invention 6 of Embodiment 11, the performing is sending, the first signaling includes the second domain, {the second domain in the first signaling, the second signaling At least one of the second domains} is used by the third processing module 302 to form the L antenna ports; or the first signaling includes {the first domain, the second In the former of the 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 transmission, the second receiving module 304 exists, and a connection line between the fourth processing module 303 and the second sending module 301 does not exist.

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

One of ordinary skill in the art can appreciate that all or part of the above steps can be completed by a program to instruct related hardware, 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. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, the above implementation Each module unit in the example may be implemented in hardware or in the form of a software function module, and the present application is not limited to any specific combination of software and hardware. The UE or the terminal in the present invention includes, but is not limited to, a mobile communication device such as a mobile phone, a tablet computer, a notebook, an internet card, an Internet of Things communication module, an in-vehicle communication device, an NB-IOT terminal, and an eMTC terminal. The base station or system equipment in the present invention includes, but is not limited to, a macro communication base station, a micro cell base station, a home base station, a relay base station, and the like.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (20)

A method in a UE for multi-antenna transmission, comprising the steps of: Step A. monitoring the first signaling in a first time window and monitoring the second signaling in a second time window; - Step B. Operating the first wireless signal. The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The operation is to receive, or the operation is to send. The method of claim 1, wherein the operation is transmission, the first wireless signal comprises L reference signals, and the L reference signals are respectively transmitted by the L antenna ports. The method of claim 1 wherein said step B further comprises the steps of: - Step B0. Receive Q reference signals. The operation is received, the first domain 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. The method of claim 1, 2, 3, wherein the first domain is used to determine a first matrix, the first matrix being 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. The M is a positive integer and the P is a positive integer greater than or equal to the M. The method according to any one of claims 1-4, wherein the step A further comprises the following steps: - Step A0. Receive downlink information. The downlink information is used to determine {the first time window, the second time a window, at least one of a ratio of a length of time of the first time window to a length of time of the second time window. The method of any of claims 1-5, further comprising the steps of: - Step C. Operating 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}. The method of any of claims 1-6, further comprising the steps of: - Step D. Send uplink information. The uplink information is used to determine at least one of {the first domain, the second domain}, and the operation is to receive. A method for use in a base station for multi-antenna transmission, comprising the steps of: - Step A. transmitting the first signaling in the first time window and transmitting the second signaling in the second time window; - Step B. Execute the first wireless signal. The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The execution is a transmission, or the execution is a reception. The method according to claim 8, wherein the performing is receiving, the first wireless signal comprises L reference signals, and the L reference signals are respectively transmitted by the L antenna ports. The method according to claim 8, wherein said step B further comprises the steps of: - Step B0. Send Q reference signals. The performing is a sending, the first domain 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. The method of claim 8, 9, 10, wherein the first domain is used to determine a first matrix, the first matrix being 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 radio signal are divided into P frequency regions, the M second matrices and the M in the P frequency regions The frequency regions correspond one-to-one. The M is a positive integer and the P is a positive integer greater than or equal to the M. The method according to any of claims 8-11, wherein the step A further comprises the following steps: - Step A0. Send downlink information. The downlink information is used to determine at least the first time window, the second time window, a ratio of a length of time of the first time window to a time length of the second time window. One. The method according to claims 8-12, further comprising the steps of: - Step C. Perform a 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}. The method according to any of claims 8-13, further comprising the steps of: - Step D. Receive uplink information. The uplink information is used to determine at least one of {the first domain, the second domain}, and the performing is sending. A user equipment used for multi-antenna transmission, which includes the following modules: a first receiving module, 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 is configured to operate the first wireless signal. The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes {the first The former of the domain, the second domain}, the second domain of the second signaling is used to form the L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The operation is to receive, or the operation is to send. The user equipment according to claim 15, further comprising the following modules: The second processing module is configured 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}. The user equipment according to claim 15, wherein the method further comprises the following modules: The first sending module is configured to send uplink information. The uplink information is used to determine at least one of {the first domain, the second domain}, and the operation is to receive. A base station device used for multi-antenna transmission, which includes the following modules: a second sending module, 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 is configured to execute the first wireless signal. The first time window and the second time window are orthogonal to each other in a time domain, the first signaling includes a first domain, and the second signaling includes a second domain. The first field in the first signaling is used to form L antenna ports. The first signaling includes the second domain, at least one of the second domain in the first signaling, and the second domain in the second signaling is used Forming the L antenna ports; or the first signaling includes a former one of {the first domain, the second domain}, and the second domain in the second signaling is used to form The L antenna ports. The first wireless signal is separately transmitted by the L antenna ports. The L is a positive integer. The execution is a transmission, or the execution is a reception. The base station device according to claim 18, further comprising the following module: The fourth processing module is configured 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}. The base station device according to claim 18, wherein the method further comprises the following modules: The second receiving module is configured to receive uplink information. The uplink information is used to determine at least one of {the first domain, the second domain}, and the performing is sending.

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