Huawei Technologies Co., Limited

Hao Tang

Xinxian Li

Zhenfei Tang

Yi Wang

Jiehua Xiao

Ting Wang

Zhe Liu

Jinlin Peng

Junchao Li

Zhang Zhang

Fan Wang

Chi Zhang

Guohua Zhou

Pengpeng Dong

Ming Wu

Mengying Ding

Xiaona Wang

Hua Li

This application discloses a communication method and apparatus. The method includes receiving by a terminal device a subchannel indication from a network device, and performing sidelink communication on K subchannels based on the subchannel indication. The subchannel indication is used to indicate the K subchannels used for sidelink communication, the K subchannels belong to M resource pools in N resource pools, and the N resource pools are resource pools corresponding to a BWP used for sidelink communication. A quantity of bits of the subchannel indication is determined based on a quantity of subchannels included in a reference resource pool, and the reference resource pool is a resource pool in the N resource pools.

Communication method and apparatus

A method for determining a reference signal sequence, a terminal device, and a network device, the including receiving, by a terminal device, first indication information sent by a network device, determining, by the terminal device, a target resource based on the first indication information, determining, by the terminal device, a reference signal sequence based on parameters of a first bandwidth and parameters of a second bandwidth, and sending or receiving, by the terminal device, the reference signal sequence on the target resource.

Method and apparatus for determining reference signal sequence, computer program product, and computer readable storage medium

A secondary cell activation method and an apparatus, the method including sending, by a terminal device, first indication information to a network device, where the first indication information indicates receive beam direction information of the terminal device, and where the receive beam direction information is associated with a channel state information reference signal (CSI-RS) resource for activating a secondary cell of the terminal device, receiving, by the terminal device, configuration information from the network device, where the configuration information configures the CSI-RS resource, and sending, by the terminal device, a first channel state information (CSI) report to the network device, where the first CSI report is obtained based on the CSI-RS resource, and where the first CSI report is used to activate the secondary cell.

Secondary cell activation method and apparatus

A communication method and apparatus, the method including receiving first indication information sent by a network device, where the first indication information is used to indicate a time domain position of a demodulation reference signal (DMRS) set on a physical downlink shared channel (PDSCH), and the DMRS set includes N DMRSs, where a quantity of candidate PDSCHs that meet a first condition in M candidate PDSCHs of the PDSCH is greater than or equal to a first threshold, receiving second indication information sent by the network device, where the second indication information is used to indicate a first PDSCH, and receiving, on the first PDSCH based on the first indication information and the second indication information, data sent by the network device.

This application provides a communication method and apparatus. The method includes: A terminal receives first control information, where the first control information is used to trigger a channel state information (CSI) operation corresponding to a first secondary component carrier, the first secondary component carrier is in a deactivated state, and the CSI operation includes one or more of the following: aperiodic CSI reporting, aperiodic CSI measurement, semi-persistent CSI reporting, or semi-persistent CSI measurement. The terminal performs, based on the first control information, the CSI operation corresponding to the first secondary component carrier.

This application relates to the field of communications technologies, and discloses a communication method, a communications apparatus, and a system. The method includes: A terminal device receives first information from a network device, where the first information is used to activate a first secondary cell; and the terminal device performs channel CSI measurement by using a first CSI-RS resource in a process of activating the first secondary cell.

Device for semi-persistent channel state information reference signal use

Example wireless communication methods and apparatus are described. In one example method, a relay device receives a first signal sent by a first device, where the first signal carries a plurality of bits. The relay device decodes the first signal to determine first information corresponding to each of a plurality of first bits. The first information corresponding to each first bit is determined based on a probability that the first bit is 1 and a probability that the first bit is 0. The relay device sends the first information in a second signal to a second device, so that the second device can use the first information to decode the first signal.

Wireless communication method and apparatus

Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device receives a radio resource control (RRC) signaling, wherein the RRC signaling comprises time window information and time unit format information, wherein the time window information comprises a hybrid automatic repeat request (HARQ) time sequence K1 set, wherein K1 is a time relationship between a time unit of a physical downlink shared channel (PDSCH) and a time unit of a physical uplink control channel (PUCCH), or wherein the K1 is a time relationship between a time unit of a (PDSCH) and a time unit of a physical uplink shared channel (PUSCH). The device determines HARQ feedback information based on the time window information and the time unit format information and sends the HARQ feedback information.

Method for determining feedback information, terminal device, and network device

This application provides a communication method and apparatus. The method includes: A terminal receives first configuration information from a network device, and determines a time unit aggregation based on the first configuration information, where the time unit aggregation includes at least one time unit. The terminal receives control information from the network device, and determines at least one first time subunit and at least one second time subunit in the time unit aggregation based on the control information. The terminal receives, in the at least one first time subunit, data corresponding to a first transport block, and receives, in the at least one second time subunit, data corresponding to a second transport block.

Communication method and apparatus for determining a first and second time subunit

Embodiments of this application provide a communication method, a communications apparatus, and a communications system, to determine a physical resource block (PRB) grid when a center frequency of a synchronization signal (SS) is inconsistent with a center frequency of a carrier. The method includes: receiving, by a terminal, an SS from a network device; determining, by the terminal, a first PRB grid based on the SS; receiving, by the terminal, first indication information from the network device, where the first indication information is used to indicate a first frequency offset between the first PRB grid and a second PRB grid; and determining, by the terminal, the second PRB grid based on the first PRB grid and the first frequency offset.

Communication method, communications apparatus, and communications system

This application discloses a communication method that includes: receiving first control information of a first bandwidth part (BWP) and second control information of a second BWP, and receiving a first data channel and a second data channel based on the first control information. The first BWP includes a first frequency domain resource and a second frequency domain resource. The second BWP includes a third frequency domain resource, and the third frequency domain resource and the second frequency domain resource overlap. The first data channel is located on the first frequency domain resource, and the second data channel is located on the third frequency domain resource. The foregoing method provides a manner of transmitting data on the first and second BWPs that partially overlap.

This application discloses example communication methods and example apparatuses. One example method includes receiving control information from a network device in a first cell, where the control information indicates to initiate a random access process in a second cell, and the control information includes a first identifier of the second cell. A random access process can then be initiated, based on the control information, in the second cell by using a random access parameter associated with the first identifier.

Disclosed are a communication method and an apparatus. The method includes: when a first terminal device supports sending of an uplink signal and a sidelink signal in a first time unit on a first carrier, determining, by the first terminal device based on priorities of the uplink signal and the sidelink signal, a first transmit power of the uplink signal and a second transmit power of the sidelink signal; and sending, by the first terminal device, the uplink signal based on the first transmit power, and/or sending the sidelink signal based on the second transmit power.

This application provides a data transmission method and an apparatus. The method includes: A first device receives a first data packet and a second data packet from a second device, where the first data packet includes at least one first modulation symbol obtained by the second device by modulating a first codeword based on a first modulation scheme, and the second data packet includes at least one second modulation symbol obtained by modulating a second codeword based on the second modulation scheme; the first device receives a third data packet from the second device, where the third data packet includes at least one third modulation symbol, the third modulation symbol is obtained by the second device by modulating one bit group based on a third modulation scheme, and the one bit group includes at least one bit in the first codeword and at least one bit in the second codeword; and the first device decodes the first data packet, the second data packet, and the third data packet. In this way, reliability of data transmission can be improved.

Data transmission method and apparatus

A method, including sending a configuration of a first channel state information reference signal (CSI-RS) resource periodicity and a configuration of a first channel state information (CSI) report periodicity that are of a secondary cell of a terminal device, the first CSI-RS resource periodicity associated with sending a first CSI-RS in a first time period, and the first CSI report periodicity associated with receiving CSI of the secondary cell from the terminal device in the first time period, and sending a configuration of a second CSI-RS resource periodicity and a configuration of a second CSI report periodicity that are of a secondary cell of the terminal device, the second CSI-RS resource periodicity associated with sending a second CSI-RS in a second time period, and the second CSI report periodicity associated with receiving CSI of the secondary cell from the terminal device in the second time period.

Growing community of inventors

Ottawa, Canada

Hao Tang