公开(公告)号：US20250062878A1

公开(公告)日：2025-02-20

申请号：US18923268

申请日：2024-10-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei LIU ,  Xiaoyan BI ,  Yong LIU ,  Ting WANG ,  Chenglong JIANG

IPC: H04L5/00 ,  H04W48/16

Abstract: Embodiments of this application provide a communication method and a communication apparatus. The method includes: A first communication apparatus receives a first indication parameter. There is a correspondence between the first indication parameter and first codeword-to-layer mapping. The first communication apparatus determines the first codeword-to-layer mapping based on the first indication parameter. Based on the method, in embodiments of this application, codeword-to-layer mapping can be dynamically adjusted and/or indicated. For example, a terminal device may use different codeword-to-layer mapping at different moments. For another example, different terminal devices may use different codeword-to-layer mapping at a same moment.

公开(公告)号：US20250097950A1

公开(公告)日：2025-03-20

申请号：US18964154

申请日：2024-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoyan BI ,  Yong LIU ,  Chenglong JIANG ,  Lei DONG ,  Lei LIU

IPC: H04W72/23 ,  H04B7/06 ,  H04L5/00

Abstract: A communication method and apparatus are provided. The method includes: receiving first indication information from a network device, where the first indication information indicates a first dimension; receiving a downlink reference signal from the network device, where the downlink reference signal is determined based on the first dimension and an uplink reference signal; and determining channel information based on the downlink reference signal. In the method, the network device and a terminal device each bear a part of a calculation amount and a part of calculation complexity. Therefore, a calculation amount and calculation complexity of channel estimation independently performed by the network device or the terminal device can be reduced, a system latency can be further shortened, and a throughput of a communication system can be improved.

公开(公告)号：US20250081021A1

公开(公告)日：2025-03-06

申请号：US18948729

申请日：2024-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoyan BI ,  Yong LIU ,  Mohammadhadi BALIGH ,  Chenglong JIANG ,  Lei LIU ,  Lei DONG

IPC: H04W24/10

Abstract: This application provides a channel measurement method and apparatus. The method includes: A terminal device obtains a first reference signal set and a second reference signal set, where the first reference signal set includes N first reference signals, the second reference signal set includes M second reference signals, and M and N are positive integers greater than or equal to 1. The terminal device may further perform channel measurement based on the first reference signal set to obtain first channel information, where a first dimension of the first channel information is less than a quantity of transmit antennas of a first device. The terminal device may further obtain second channel information based on the second reference signal set and the first channel information, where a first dimension of the second channel information is less than the quantity of transmit antennas of the first device.