Datang Mobile Communications Equipment Co., Ltd.

China Academy of Telecommunications Technology

Other

Xin Su

Qiubin Gao

Runhua Chen

Rakesh Tamrakar

Qiuping Huang

Chuanjun Li

Hui Li

Mengjun Wang

Tamrakar Rakesh

Deshan Miao

Yang Song

Yu Yang

Xueyuan Gao

Meifang Jing

Shaohui Sun

Zukang Shen

Ranran Zhang

Guojun Xiao

Jing Liang

Haiyang Quan

Yu Chan Yang

Xianjun Yang

Baojuan Guo

Ruiping Wei

Deshan Miu

Yuexia Song

Shouning Jiang

A near-field beam search method, including: a base station determines a grid where a terminal is located from at least one type of preset grid of a near-field coverage range of the base station; the base station determines a target transmitting beam codebook according to the grid and a base station transmitting beam codebook set corresponding to the preset grid, where the base station transmitting beam codebook set includes a transmitting beam codebook corresponding to each grid in the preset grid; the base station sends information of the target transmission beam codebook to the terminal, and the terminal determines a target receiving beam codebook from a terminal receiving beam codebook set corresponding to the preset grid according to the information; the base station sends a signal to the terminal by using the target transmitting beam codebook, and the terminal receives the signal by using the target receiving beam codebook.

Near-field beam search method and apparatus, and storage medium

The present application can provide an uplink transmission method and apparatus. The method comprises: a base station instructs a UE to send SRSs corresponding to N groups of SRS resources, each of the N groups of SRS resources comprising one or more SRS resources; N being a positive integer; the base station receives the SRSs sent by the UE to determine X groups of uplink scheduling information, each of the X groups of uplink scheduling information corresponding to one group of SRS resources in the N groups of SRS resources; uplink scheduling information in different groups corresponding to SRS resources in different groups; X being a positive integer greater than one and not greater than N; the base station sends the determined X groups of uplink scheduling information to the UE so that the UE transmits an uplink signal according to the X groups of uplink scheduling information.

Uplink transmission method and apparatus

The embodiments of the present application provide a CQI measurement reporting method, an apparatus, a network side device, and a terminal. The CQI measurement reporting method includes a network side device determining, for multiple coordinated transmission TRPs or antenna panels, a CSI measurement resource used for CQI measurement; generating network side configuration information, the network side configuration information being used for indicating the network side device to configure a terminal to perform, according to the CSI measurement resource, CQI measurement corresponding to a TDM transmission mode, obtain a corresponding CQI measurement result, and then report the CQI measurement result to the network side device; and sending the CSI measurement resource and the network side configuration information to the terminal.

Multiple transmit-receive points (TRPs) or antenna panels based CQI measurement reporting method, apparatus, network side device and terminal

A transmission mode indication method and device, a base station, a terminal and a storage medium are provided. The method includes: transmitting signaling to a UE, and the UE determines a transmission mode between the UE and a base station according to the signaling, the signaling carrying indication information of a transmission configuration indicator (TCI) state, indication information of a redundancy version (RV), indication information of a demodulation reference signal (DMRS) port, and indication information indicating whether the number of retransmission is carried; or, besides the described indication information, the signaling also carrying indication information of a transmission mode. In the embodiments of the present application, indication information is carried in signaling and is used for indicating a specific transmission mode, and dynamic switching between different transmission modes can be achieved, and the system performance, the reliability and the resource utilization rate are better improved.

Transmission mode indication method and device, base station, terminal

Disclosed are an information transmission method and device. On the terminal side, an information transmission method provided by the embodiment of the present application, includes: determining the actual reporting method of the physical uplink control channel PUCCH according to the reported time domain resources and higher-layer configuration, the actual reporting method is joint reporting or independent reporting; where, the higher-layer configuration includes indication information of the PUCCH reporting method configured on the network side; using the reporting method to transmit PUCCH, the PUCCH carries HARQ feedback information.

Information transmission method and device

Disclosed are a method for processing multi-transmission reception point (TRP) data, a base station, a terminal, and a storage medium. The method includes a base station generates a resource allocation instruction and a quasi-co-location (QCL) instruction according to the mapping relations between a transmission coding block of data to be transmitted and multiple TRPs, and the QCL instruction is used for indicating the associations between an allocated resource and the QCL identifiers of the multiple TRPs, and the allocated resource includes a time-frequency resource or a demodulation reference signal (DMRS) port resource; and sends downlink control information (DCI) to a user terminal, the DCI including at least the resource allocation instruction and the QCL instruction as well as a data merging and detection instruction, to instruct the user terminal to perform.

Method for processing multi-transmission reception point (TRP) data, base station, terminal, and storage medium

Disclosed in the present application are a method and apparatus for indicating TCI, a base station, and a storage medium. The method includes: when TCI in DCI configured by a base station for a UE corresponds to at least two TCI states, indicating a correspondence between a CDM group and a TCI state by mean of the DCI, and the CDM group is a CDM group to which a DMRS port allocated by the base station for the UE belongs.

Method and apparatus for indicating TCI, base station and storage medium

Disclosed in the present application are a resource allocation method and device. The resource allocation method provided in the present application includes: allocating a transmission configuration indication (TCI) state resource and determining TCI state resource allocation information; and notifying a terminal of the TCI state resource allocation information.

Resource allocation method and device, and resource determination method and device

Disclosed are a resource determination method and device. On a network side, a resource determination method provided in the embodiments of the present application includes: determining a correlation between a transmission configuration indication (TCI) state and a time domain resource; and determining, according to the correlation, the time domain resource corresponding to the TCI state.

Resource determination method and device

A signal transmission method, a device, a terminal, and a network device are provided. The method includes: receiving at least two sets of first indication information sent by a network device, wherein each set of first indication information is used to indicate at least one first signal resource; sending a first signal according to indication of the at least two sets of first indication information; wherein, the first signal includes multiple layers, each of the layers of the first signal has corresponding relationship with one set of first indication information.

Signal transmission method and apparatus, and terminal and network side device

A CSI reporting method, a CSI reporting device, a terminal and a network side device are provided. The CSI reporting method includes: acquiring a resource set configured by a network side device, the resource set including a plurality of measurement resources; measuring a downlink reference signal for a plurality of transmission nodes in accordance with the plurality of measurement resources, to determine a target CSI-RS port set for CSI measurement; and performing calculation in accordance with the target CSI-RS port set to acquire to-be-reported CSI.

Channel state information reporting method and device, terminal and network side device

Disclosed in the present application are a method for transmission configuration indication (TCI) of a DMRS port and a related apparatus, and a storage medium. In the method, a network side device configures at least two DMRS ports for a terminal according to the correspondence between required TCI states and DMRS CDM groups, the at least two DMRS ports belonging to different CDM groups, and the different CDM groups comprising different numbers of DMRS ports; and sends DCI to the terminal, the DCI comprising a DMRS port index value, the DMRS port index value being an index value pre-defined in a DMRS port allocation table, and the DMRS port index value being used for indicating a DMRS port set allocated to the terminal, the number of CDM groups without data, and the number of preamble DMRS symbols, and being used for indicating the correspondence.

Transmission configuration indication method of DMRS port and related apparatus, and storage medium

The present disclosure provides a method for determining an antenna port and a communication device. The method includes: transmitting control information, the control information including a first information field, the first information field being used to indicate antenna port information of a plurality of antenna port sets; and determining an antenna port set corresponding to each TCI state in a plurality of TCI states, and determining antenna ports in the plurality of antenna port sets in accordance with the first information field. There is a correspondence between the TCI states and the antenna port sets.

Method for determining antenna port and communication device

A data transmission method, a terminal, and a network device are provided. The transmission method includes receiving physical uplink shared channel PUSCH scheduling information sent by a network device, wherein the PUSCH scheduling information includes first indication information and second indication information, and the first indication information is used to indicate a data layer comprised in a PUSCH, the second indication information is used to indicate a precoding matrix; mapping, according to the precoding matrix indicated by the second indication information, the data layer included in the PUSCH onto at least two target antenna panels for transmission, wherein the target antenna panels are antenna panels, for transmitting the PUSCH, among the at least two antenna panels of the terminal.

Data transmission method, terminal, and network device

The present application relates to the field of communications and provides a method and apparatus for determining channel state information (CSI). The method includes a network side device determines a measurement mode for CSI, the measurement mode being that the network side device performs transmission using M code words by means of transmit points corresponding to M demodulation reference signal (DMRS) port groups, and M is greater than or equal to 1, and each of the code words corresponds to one DMRS port group, the network side device determines N CSI-RS resources according to the measurement mode, the N CSI-RS resources being used for a terminal to determine CSI of transmit channels corresponding to the M code words, the transmit channels corresponding to the code words being transmit channels from the transmit points of the code words to the terminal, M being less than or equal to N.

Growing community of inventors

Beijing, China

Xin Su