Huawei Technologies Co., Limited

Future Wei Technologies, Inc.

Yanliang Sun

Bin Liu

Da Wang

Jian Wang

Yu Cai

Yongbo Zeng

Xiaodong Sun

Nathan Edward Tenny

Lili Zhang

Zhaocheng Wang

Hongcheng Zhuang

Kai Xu

Guorong Li

Chen Dong

Peiyao Zhao

A communication method includes receiving first beam feedback information from a wide beam terminal, where the first beam feedback information includes information about a first wide beam and information about M wide beams whose signal quality meets a first condition, receiving second beam feedback information from a narrow beam terminal, where the second beam feedback information includes information about a second wide beam and information about N wide beams whose signal quality meets a second condition, receiving, from the narrow beam terminal, information about a first narrow beam, where the first narrow beam is a narrow beam covered by the second wide beam, and determining, based on the first beam feedback information, the second beam feedback information, and the information about the first narrow beam, whether to transmit downlink data to the wide beam terminal and the narrow beam terminal.

Downlink data transmission method, network device, and terminal

This application provides an NR uplink codebook configuration method and a related device. The method may include: receiving, by a network device, reference transmission unit configuration information reported by a terminal, where the reference transmission unit configuration information includes: a quantity N of transmission units of the terminal, a quantity M of groups into which the N transmission units are divided, and a quantity of transmission units included in each group; determining transmission port configuration information of the terminal based on the reference transmission unit configuration information; receiving reference codebook configuration information reported by the terminal; determining a codebook type of the terminal based on the reference codebook configuration information; and sending the transmission port configuration information and the codebook type to the terminal. In this application, two-stage codebooks or single codebooks adapted to different antenna array forms on a terminal side in an NR scenario can be designed.

NR uplink codebook configuration method and related device

A method includes determining, by a first device, a first resource set and a second resource set in a first transmission subframe; determining a data transmission manner on the first resource set and the second resource set; and implementing data transmission with a second device based on the determined data transmission manner by using the first transmission subframe, where the first resource set is a set of remaining resource elements other than resource elements paired based on a first pairing rule in all resource elements used for data transmission in the first transmission subframe, and the second resource set is a set of the resource elements paired based on the first pairing rule in the first transmission subframe.

Data transmission method and apparatus

Embodiments of this application provide a network access method for a low power terminal. The method includes: finding, by a low power terminal, at least one high performance terminal in a first resource pool based on a synchronization signal and a broadcast channel of a virtual micro cell that are sent by a high performance terminal; determining, from all found high performance terminals, a first high performance terminal that needs to be used to access a network; obtaining configuration information through a broadcast channel of a virtual micro cell of the first high performance terminal, where the configuration information includes a second resource pool; and sending a random access request to the first high performance terminal by using a resource in the second resource pool.

Network access method for low power terminal, and apparatus

A data transmission rate control terminal device receives beam indication information and scheduling information from a base station. The terminal device determines at least one beam based on a set of N candidate beam pair links (BPLs). The terminal device determines second modulation and coding indication information according to first modulation and coding indication information, and the terminal device transmits data on the at least one beam according to resource indication information and the second modulation and coding indication information.

Data transmission rate control method and device

A method for communication between user equipments, user equipment, and a base station. The method includes establishing, by a first user equipment (UE), a first virtual cell, and sending, by the first UE, a first synchronization signal and a first broadcast message, wherein the first synchronization signal comprises an identity of the first virtual cell, and wherein the first broadcast message comprises configuration information of the first virtual cell, wherein the first synchronization signal and the first broadcast message cause a second UE to access the first virtual cell according to the identity of the first virtual cell and the configuration information of the first virtual cell, and to communicate with the first UE.

Method for communication between user equipments, user equipment, and base station

One example method includes receiving, by a terminal, indication information sent by a base station, where the indication information indicates a precoding matrix in a first precoding matrix set and a transmission rank corresponding to the precoding matrix, and the precoding matrix is used to precode transmit data streams at r transmission layers to obtain signals to be sent on N transmission ports of the terminal; and when r&#x3e;1, a nonscalar part of a precoding matrix whose transmission rank is r in the first precoding matrix set is obtained by combining columns in nonscalar parts of r precoding matrices, and the r precoding matrices are precoding matrices selected from all precoding matrices whose transmission ranks are 1; and determining, by the terminal based on the indication information, the precoding matrix for precoding the transmit data streams.

Communication method, terminal, and base station

According to example data transmission methods and related devices provided in the present disclosure, a base station receives first channel state information (CSI) and an indication message that are sent by a first terminal, and may determine a size of a downlink transmission data block from the base station to the first terminal according to the first CSI and the indication message. In doing so, a downlink transmission rate from the base station to the first terminal matches a downlink transmission rate from the first terminal to a second terminal.

Data transmission method and related device

A signal resource configuration method, a terminal, and an access network device to reduce impact on an existing standard and save Channel State Information Reference Signal (CSI-RS) resources. The method includes obtaining, by the access network device, a 2N-port CSI-RS resource sequence number, and sending, by the access network device, the 2N-port CSI-RS resource sequence number to a terminal device, where the 2N-port CSI-RS resource sequence number notifies the terminal device of an N-port CSI-RS resource in two adjacent physical resource blocks (PRBs), and N is a positive integer.

Signal resource configuration method, terminal, and access network device

Embodiments of the present invention provide a method for determining a transmission rate supported by a data stream, user equipment, and a base station. The method includes: determining, by user equipment UE, a first index corresponding to an average transmission rate supported by a channel between the UE and the base station; determining, by the UE, a second index corresponding to a difference between an instantaneous transmission rate supported by a data stream on the channel and an average transmission rate supported by the data stream on the channel; sending, by the UE, the first index to the base station; and sending, by the UE, the second index to the base station. According to the embodiments of the present invention, the instantaneous transmission rate supported by the data stream on the channel can be relatively accurately fed back to the base station, thereby improving channel resource utilization.

Method for determining transmission rate supported by data stream, user equipment, and base station

A method includes obtaining, by a terminal, a quantity M of beamforming vectors needing to be reported by the terminal and a first reference signal that are sent by a base station; estimating downlink channel states on N dual-polarized antenna ports based on the first reference signal; selecting m first beamforming codewords based on the downlink channel states and the quantity M of beamforming vectors needing to be reported that is sent by the base station; and feeding back the m selected first beamforming codewords and ranks of the downlink channel states to the base station.

Beamforming-based transmission method and apparatus

A transmission resource mapping method and a device relating to the field of mobile communications technologies, where resource mapping is performed using a resource element block, a length of the resource element block in time domain is less than a length of a physical resource block in the time domain. Therefore, a mapping granularity can be reduced during resource mapping such that latency in a transmission process can be reduced.

Transmission resource mapping method and device

Embodiments of the present invention provide an uplink subcarrier spacing indication method, a base station, and a terminal. The base station determines indication information that is used to indicate a first uplink subcarrier spacing supported by the base station, and communicates with the terminal according to the indication information. During the communication, the base station indicates the first uplink subcarrier spacing supported by the base station to the terminal, so that the terminal subsequently determines, based on the first uplink subcarrier spacing, a second uplink subcarrier spacing supported by the terminal; or the base station receives information that is sent by the terminal and that carries a second uplink subcarrier spacing, in other words, receives an indication from the terminal, so as to learn of the second uplink subcarrier spacing supported by the terminal or to be used by the terminal to send an uplink signal.

Uplink subcarrier spacing indication method, base station, and terminal

A method for operating an access node includes sending, to a user equipment (UE), a frequency domain density reduction rate indicator and a frequency shift index indicator for one or more channel state indicator reference signal (CSI-RS) resources, wherein the frequency domain density reduction rate indicator indicates a number of physical resource blocks (PRBs) skipped between successive CSI-RS transmissions and the frequency shift index indicator indicates a shift of a CSI-RS starting PRB.

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Shenzhen, China

Yanliang Sun