公开(公告)号：US20210351884A1

公开(公告)日：2021-11-11

申请号：US17268603

申请日：2019-08-17

Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO.,LTD.

Inventor： Qiuping HUANG ,  Runhua CHEN ,  Qiubin GAO ,  Xin SU ,  Deshan MIAO

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: The present invention provides an uplink transmission method and apparatus, for use in improving the flexibility of uplink scheduling. 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.

公开(公告)号：US20210320775A1

公开(公告)日：2021-10-14

申请号：US17273297

申请日：2019-06-19

Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO.,LTD.

Inventor： Deshan MIAO ,  Xin SU ,  Qiubin GAO ,  Runhua CHEN

IPC: H04L5/00 ,  H04W72/04

Abstract: Disclosed are a method for processing multi-transmission reception point (TRP) data, a base station, a terminal, and a storage medium, used for solving the technical problem in the prior art of low reliability of data transmission when data is transmitted by using multiple TRPs. The method comprises: 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, wherein 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 comprises a time-frequency resource or a demodulation reference signal (DMRS) port resource; and sends downlink control information (DCI) to a user terminal, the DCI comprising at least the resource allocation instruction and the QCL instruction as well as a data merging and detection instruction, so as to instruct the user terminal to perform, according to the mapping relation between resource allocation and QCL, merging, encoding and detection on data signals received from the multiple TRPs.

公开(公告)号：US20210320767A1

公开(公告)日：2021-10-14

申请号：US17269538

申请日：2019-06-12

Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO.,LTD.

Inventor： Xin SU ,  Qiubin GAO ,  Runhua CHEN ,  Deshan MIAO

IPC: H04L5/00 ,  H04B7/0413

Abstract: The present application relates to the technical field of communications, and provides a transmission method and apparatus. The method comprises: a network side device determines a number of Demodulation Reference Signal (DMRS) port groups N occupied by downlink transmission data sent to a terminal, N being greater than or equal to 1; the network side device determines, according to the number of the DMRS port groups occupied by the downlink transmission data, a code word transmission mode corresponding to the downlink transmission data; and the network side device performs data processing on the downlink transmission data according to the code word transmission mode, and transmits the processed downlink transmission data by means of transmission points corresponding to the N DMRS port groups. By determining, by means of the number of DMRS port groups actually occupied by a data channel, whether to use single code word transmission or double code word transmission, a more flexible method for determining a code word transmission mode is implemented.

公开(公告)号：US20210273708A1

公开(公告)日：2021-09-02

申请号：US16973056

申请日：2019-05-30

Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.

Inventor： Hui LI ,  Qiubin GAO ,  Tamrakar RAKESH ,  Runhua CHEN

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0456

Abstract: Disclosed are a method and device for feeding back channel state information, and a method and device for determining a pre-coding matrix. In the present application, a terminal determines N orthogonal vector groups, one of the orthogonal vector groups being used for constructing pre-coding corresponding to M layers in a pre-coding matrix; the terminal determines, according to beams in the N orthogonal vector groups, linear combination coefficients for constructing the pre-coding matrix, the linear combination coefficients comprising linear combination coefficients corresponding to the layers in the pre-coding matrix; the terminal feeds back channel state information to a base station, the channel state information comprising indication information of the N orthogonal vector groups and linear combination coefficients, in the determined linear combination coefficients of the pre-coding matrix, corresponding to Y layers, wherein Y is less than or equal to the number of layers of the pre-coding matrix.