Huawei Technologies Co., Limited

Huawei Technologies,co., Ltd.

Future Wei Technologies, Inc.

Hauwei Technologies Co., Ltd.

Denso Corporation

Kunpeng Liu

Jianghua Liu

Leiming Zhang

Di Zhang

Xianda Liu

Yongxing Zhou

Jianqin Liu

Xueru Li

Qiang Wu

Bingyu Qu

Xiang Gao

Ruiqi Zhang

Liang Xia

Chi Gao

Mingxin Gong

Chaojun Li

Li Chai

Young Hoon Kwon

Lixia Xue

Yan Cheng

Bin Liu

Jiayin Zhang

Huang Huang

Yuan Xia

Weijun Sun

Yongming Liang

Xinyu Gao

Shijie Cai

Wei Quan

Xu Zhang

Zukang Shen

Yuhua Chen

Liuliu Ji

Guangjian Wang

Yunzhe Hou

Wen Tong

Jian Zhang

Qiang Li

Ye Liu

Xi Zhang

Peng Guan

Chuanfeng He

Mingyu Zhou

Younghoon Kwon

Rong Wen

Jia He

Kun Zeng

Yanxing Zeng

Xi Yan

Meng Gao

Taejoon Kim

JaeHyun Park

Bruno Clerckx

Jiguang He

Xiangpu Liu

Examples of communication methods and devices are described. In one example method, configuration information indicating one or more spatial domain beam basis vector groups and Q thresholds is received from a network device, where the Q thresholds correspond one-to-one to spatial domain beam basis vectors in the one or more spatial domain beam basis vector groups. L spatial domain beam basis vectors are selected from a spatial domain beam basis vector group set. K frequency domain basis vectors are selected from a frequency domain basis vector set for each of the L spatial domain beam basis vectors.

Communication method and device

Embodiments of this application provide an information indication method and apparatus, to implement indication of transmission configuration indication information and data transmission in a multi-beam transmission scenario. In the method and the apparatus, a network device sends configuration information to a terminal device, to configure M transmission configuration indicator TCI states; the network device sends first indication information to the terminal device, where the first indication information is used to indicate A TCI states in the M TCI states; the network device sends second indication information to the terminal device, to indicate a first codepoint, where the first codepoint is determined by the network device based on at least one TCI state and according to a preset mapping rule between a TCI state and a codepoint; and the network device communicates with the terminal device based on the at least one TCI state.

Information indication method and apparatus in a multi-beam transmission scenario

An information transmission method and apparatus. In the method, a terminal device generates a first codeword, where the first codeword is obtained based on a second codeword, a quantity of elements included in the second codeword is greater than a quantity of elements included in the first codeword, the second codeword is associated with a first coefficient set of a downlink channel, and the first coefficient set includes an element included in at least one row vector or column vector of a first coefficient matrix; and then the terminal device feeds back the first codeword to a network device. The terminal device can indicate a position and a numerical value of an element in the first coefficient set by reporting only the first codeword. This manner is simple. In addition, a codeword length of the first codeword is shorter than a codeword length of the second codeword.

Information transmission method and apparatus

An information transmission method, an apparatus, and a device are disclosed. The method includes: A terminal receives first signaling, where the first signaling includes a first field, a state value of the first field is used to indicate a first spatial relation parameter for receiving a first channel, the state value of the first field is one of a plurality of candidate state values corresponding to the first field, and at least one of the plurality of candidate state values corresponds to two or more spatial relation parameters. The terminal obtains one or more target spatial relation parameters in the first spatial relation parameter, and receives the first channel based on the one or more target spatial relation parameters.

Spatial relation parameter selection method, apparatus, and device

Example communication methods and apparatus are described. One example method includes receiving a reference signal from a network device by a terminal device. The reference signal has an association relationship with a weight matrix and a channel between the network device and the terminal device, a quantity of rows or columns of the weight matrix is N, and N is a positive integer less than or equal to a quantity of receive ports of the terminal device. The terminal device determines an estimation result of the weight matrix based on the reference signal, where the estimation result of the weight matrix is used by the terminal device to perform signal detection on a data signal received by the terminal device from the network device, or is used by the terminal device to precode a data signal sent by the terminal device to the network device.

Communication method and apparatus

The present disclosure provides example information reporting method and apparatuses. One example method includes determining reporting content based on a priority rule, when there is a reporting conflict between a beam failure recovery request (BFRQ) and at least one piece of information, where the at least one piece of information includes a scheduling request (SR), and the priority rule includes that a priority of the BFRQ is higher than a priority of the SR. The reporting content is sent on a first time-frequency resource, where the reporting content includes the BFRQ but not the SR.

Information reporting method and apparatus

This disclosure provides power indication methods and apparatuses for wireless communications. In an implementation, a method includes: receiving antenna transmit capability information from a terminal device, wherein the antenna transmit capability information indicates whether a maximum transmit power value of a physical uplink shared channel (PUSCH) corresponding to each sounding reference signal (SRS) port in a SRS resource reaches a preset power value, and determining based on the antenna transmit capability information, whether the maximum transmit power value of the PUSCH corresponding to each SRS port in the SRS resource reaches the preset power value.

Power indication method and apparatus

This application provides channel state information reporting methods and communications apparatuses. One method includes: generating first indication information and a plurality of groups of second indication information, where the first indication information indicates a plurality of frequency domain component vectors, each group in the plurality of groups of second indication information corresponds to a spatial layer and a plurality of spatial domain component vectors and constructs precoding vectors of the spatial layer in a plurality of frequency bands, and each piece of second indication information in each group corresponds to a spatial domain component vector in the plurality of spatial domain component vectors and indicates at least one of the plurality of frequency domain component vectors that corresponds to the spatial domain component vector; and sending the first indication information and the second indication information.

Channel state information reporting method and communications apparatus

The present disclosure relates to communication methods and apparatus. In one example method, a terminal device receives first indication information, where the first indication information is used to indicate grouping information of N control resource sets in M control resource sets, N is less than M, and N and M are positive integers greater than or equal to 1. The terminal device determines grouping information of K control resource sets other than the N control resource sets in the M control resource sets based on the first indication information.

This application discloses a sequence generating method and apparatus, and relates to the field of communications technologies, to resolve a problem that a PAPR of a DMRS symbol is higher than that of a data symbol. An initialization factor of a first sequence is obtained, where the initialization factor is associated with a first parameter, and the first sequence is generated based on the initialization factor. In addition, the first parameter is a port number, or the first parameter is a code division multiplexing CDM group identity.

Sequence generating and processing method and apparatus

This application provides a communication method and an apparatus, so that a terminal device and a network device can determine, based on a frequency domain position of each resource element in a second resource element set, a transmit sequence of each uplink transmit port on the second resource element set, to send and receive an uplink reference signal on a non-uniform pilot resource.

This application provides example antenna panel status indication methods and apparatuses. One example method includes sending first antenna panel status information, where the first antenna panel status information indicates a status of at least one antenna panel. Response information of the first antenna panel status information can then be received. It can then be determined, based on the response information, that the status of the at least one antenna panel takes effect.

Antenna panel status indication method and apparatus

The present disclosure relates to resource determining methods and apparatus. One example method includes receiving, by a terminal, N pieces of channel measurement reference signal configuration information, where each of the N pieces of channel measurement reference signal configuration information is used to indicate a time domain resource occupied by a channel measurement reference signal on one carrier, serving cell, or bandwidth part, and N is a positive integer, and determining, by the terminal based on the N pieces of channel measurement reference signal configuration information, an orthogonal frequency division multiplexing (OFDM) symbol occupied by a demodulation reference signal (DMRS) in a first time unit.

Resource determining method and apparatus

This application provides a communication method and apparatus, so that a terminal device sends uplink pilot signals, the terminal device obtains a first delay information set based on downlink pilot signals from a network device, and the network device jointly considers the first delay information set and the uplink pilot signals to perform uplink channel estimation. The first delay information set may indicate a delay position of a strong path, and uplink channel estimation accuracy can be improved.

A network device sends K reference signal resources, where K is an integer greater than 0. The network device receives a first random access preamble in a first random access time-frequency resource unit. The network device determines indexes of S reference signal resources and first channel state information CSI of the S reference signal resources based on the first random access preamble and the first random access time-frequency resource unit the S reference signal resources are reference signal resources in the K reference signal resources, and S is an integer greater than 0 and less than or equal to K.

Channel state information transmission method and apparatus

Growing community of inventors

Beijing, China

Kunpeng Liu