Huawei Technologies Co., Limited

Huawei Technologies,co., Ltd.

Xingwei Zhang

Chao Li

Jie Shi

Zhe Liu

Shulan Feng

Yinghua Sun

Yan Cheng

Junren Chang

Guanglong Du

Xiaoan Fan

Yongxia Lv

Yuhua Chen

Lixia Xue

Yuanjie Li

Qian Zhang

Bo Li

Yajuan Li

Jian Wang

Lei Guan

Fan Yang

Xu Zhang

Hao Sun

Yi Bin Wang

Lili Zhang

Qiang Li

Zhiyu Yan

Xiangdong Zhang

Yuan Xia

Yifan Xue

Jinnan Liu

Ronghui Wen

Meng Deng

Xiuyong Shen

A power control method and a power control apparatus, the method including determining a path loss estimate between a first terminal device and the second terminal device, determining a transmit power of a signal based on the path loss estimate between the first terminal device and the second terminal device and further based on a path loss estimate between a network device and the second terminal device, and sending, by the second terminal device, the signal to the first terminal device based on the transmit power of the signal. The signal is a physical sidelink shared channel (PSSCH), and the transmit power of the PSSCH is determined according to at least a maximum transmit power of the PSSCH, a target receive power of the PSSCH, the path loss estimate between the first terminal device and the second terminal device, and a target receive power of the PSSCH.

Power control method and power control apparatus

This application provides an uplink control information sending method and apparatus and an uplink control information receiving method and apparatus. The sending method includes: determining a mapping-affecting factor, where the mapping-affecting factor is used to indicate a physical uplink shared channel (PUSCH) or uplink control information; mapping the uplink control information to the PUSCH based on the mapping-affecting factor; and sending the PUSCH to a base station.

Uplink control information sending and receiving method and apparatus

Embodiments of this application disclose a message transmission method and apparatus, a terminal, and a base station. In the method, a symbol or symbol group may be used as a granularity to select a plurality of symbols or symbol groups from one or more slots and then allocate the plurality of symbols or symbol groups to a same terminal for transmitting data. The plurality of symbols or symbol groups may be used for uplink data scheduling or may be used for downlink data scheduling. Therefore, a slot resource is allocated at a small granularity, so that a time domain resource is more flexibly allocated, and the slot resource is more fully utilized. This helps improve message transmission efficiency, thereby expanding a coverage area.

Message transmission method and apparatus, terminal, and base station

A data transmission method includes obtaining, by user equipment (UE), a maximum transmit power; determining, by the UE, a transmit power of a data channel and/or a transmit power of a control channel based on the maximum transmit power and a first parameter, where the first parameter includes at least one of the following: a bandwidth of the data channel, a bandwidth of the control channel, or a carrier type of a carrier of a first link; and sending, by the UE, the control channel and the data channel in a same subframe.

Data transmission method and terminal device thereof

A transmit end obtains a frequency hopping parameter and resource allocation information of a to-be-transmitted message, where the frequency hopping parameter includes at least one of bandwidth part indication information, beam indication information, reference signal configuration information, subcarrier spacing indication information, transmission waveform indication information, slot type indication information, channel type indication information, and transmission carrier indication information. The transmit end determines, based on the resource allocation information and the frequency hopping parameter, a physical resource used to send the to-be-transmitted message, where the physical resource includes information about a frequency domain resource on which the to-be-transmitted message is mapped in at least one time unit. The transmit end sends the to-be-transmitted message by using the physical resource.

Communication method and communications apparatus

The present disclosure includes systems, devices, and methods that provide a control signaling transmission method. One example method includes: determining a resource subset used to transmit control signaling, where the resource subset is a part of a resource pool used to transmit the control signaling; and performing one of the following operations: determining a transmission location of the control signaling in the resource subset and sending the control signaling at the transmission location, or performing blind control signaling detection in the resource subset.

Control signaling transmission method and device

Example communication methods and apparatus are described. One example communication method includes receiving signaling on a first carrier by a terminal device. The terminal device determines slot formats of N slots on at least one second carrier, where the slot formats of the N slots are determined based on M slot formats. N and M are positive integers. The M slot formats are obtained based on the received signaling, and the N slots are determined based on at least one of the following: a moment at which the signaling is received, and a relationship between a length of a first slot on the first carrier and a length of a second slot on the at least one second carrier. According to the communication method, the terminal device, and a network device in this application, slot formats of slots on a plurality of carriers can be determined.

Communication method and wireless apparatus

A power determining method includes determining first new radio (NR) power based on first additional maximum power reduction (AMPR), where the first AMPR is calculated based on first resource allocation information and NR scheduling information, determining Long-Term Evolution (LTE) power based on second AMPR, where the second AMPR is calculated based on LTE scheduling information and second resource allocation information, and when a sum of the first NR power and the LTE power is greater than maximum transmit power of a terminal device, sending LTE information to the first access device at the LTE power on time domain resources that completely or partially overlap each other, and sending NR information to the second access device at second NR power or skipping sending NR information, where the second NR power is less than the first NR power.

Power determining method and apparatus

Embodiments of the present invention provide a synchronization method, user equipment, and a base station. The synchronization method includes: obtaining, by user equipment, synchronization information, where the synchronization information includes at least one of the following information: synchronization source selection parameter information, synchronization source indication information, or synchronization source priority information; receiving, by the user equipment, a first synchronization signal sent by at least one synchronization source; and determining, by the user equipment, a synchronization reference source according to the synchronization information and the first synchronization information. In the embodiments of the present invention, the synchronization information is obtained, and the synchronization reference source is determined according to the synchronization information and the synchronization signal of the at least one synchronization source, so that synchronization can be implemented.

Synchronization method, user equipment, and base station

Embodiments of this application includes: A first terminal calculates at least one of a first power headroom report (PHR) or a second power headroom report (PHR). The first PHR is a power headroom report of the first terminal on a first transmission link. The second PHR is a total power headroom report of the first terminal on the first transmission link and a second transmission link, the second transmission link is a wireless communication link between the first terminal and a network device, and frequency division multiplexing (FDM) is performed on part of transmission resources on the first transmission link and part of transmission resources on the second transmission link. The first terminal sends the at least one of the first PHR or the second PHR.

Method and apparatus for reporting power headroom report, and method and apparatus for obtaining power headroom report

The present disclosure relates to methods for obtaining a quantity of blind detection times, and apparatus. One example method comprises receiving, by a terminal device, second information from a network device, where the second information comprises subcarrier spacing information, and determining, by the terminal device based on the subcarrier spacing information, a maximum quantity of blind detection times for the terminal device in a search space.

Downlink control information transmission method, method for obtaining quantity of blind detection times, and apparatus

Embodiments of the present disclosure relate to the field of communications technologies, and provide an uplink control channel resource configuration method and an apparatus, to improve utilization of a frequency domain resource of an uplink channel. The method includes: determining, by a base station, resource configuration information, and sending, by the base station, the resource configuration information to UE, where the resource configuration information includes a first hop resource of a first uplink control channel (PUCCH), a frequency domain resource offset of the first PUCCH, and/or a bandwidth of a bandwidth part (BWP) used by the user equipment UE, and the first PUCCH is a PUCCH of the UE.

Uplink control channel resource configuration method and apparatus

Embodiments of the present invention relate to the communications field, and provide a method for determining a parameter set of a cell, a method for sending a parameter set of a cell, a device, and a system, so that a terminal can identify a parameter set of a cell in 5G NR supporting a plurality of parameter sets of the cell. The solutions provided in the embodiments of the present invention include: determining, by a base station, feature information of an identification signal based on a parameter set of a cell, wherein the parameter set of the cell comprises a subcarrier spacing; and sending the identification signal to a terminal based on the feature information of the identification signal.

Method for determining parameter set of cell, method for sending parameter set of cell, device, and system

An uplink channel sending method includes sending, by a terminal device, a first uplink channel to a network device at a first power in a first time unit of a first Bandwidth Part (BWP) region, and sending, by the terminal device, the first uplink channel to the network device at a second power in a second time unit of a second BWP region. The second time unit is adjacent to the first time unit, the second BWP region is different from the first BWP region, and the second power is determined using a reset accumulated closed-loop power, an absolute closed-loop power, or the first power and an offset value.

Uplink channel sending method and device

This application provides a wireless communication method, a network device, a terminal device, and a computer-readable storage medium. The method includes: sending, by a network device, a first PDSCH and a second PDSCH to a terminal device, where scheduling performed by the network device on the first PDSCH and the second PDSCH is out-of-HARQ order scheduling; determining, by the network device, whether transmission of the second PDSCH interrupts a processing performed by the terminal device on the first PDSCH; and if the network device determines that the transmission of the second PDSCH interrupts the processing performed by the terminal device on the first PDSCH, determining, by the network device, that data corresponding to the first PDSCH is not successfully received.

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Beijing, China

Xingwei Zhang