公开(公告)号：US11146374B2

公开(公告)日：2021-10-12

申请号：US16818885

申请日：2020-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Li ,  Qian Zhang ,  Changguo Jiang ,  Jingxin Wei

IPC: H04L5/00 ,  H04L27/00 ,  H04L27/26

Abstract: This application provides a transmission method and a transmission apparatus, so that a receive end can correctly demodulate data. A transmission method may include performing a phase compensation operation of a corresponding frequency value on each of m first signals in k signals, to obtain m second signals, where each of the m first signals is located at a non-center frequency of a current carrier, each first signal is a synchronization signal or data, m and k each are a positive integer, and m≤k. The method may also include performing sending processing on the m second signals.

公开(公告)号：US12137450B2

公开(公告)日：2024-11-05

申请号：US17095542

申请日：2020-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meng Hua ,  Yuan Yang ,  Hao Tang ,  Han Zhou ,  Changguo Jiang ,  Hao Wang

IPC: H04W72/1273 ,  H04B7/0452 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/0453

Abstract: A communications method and apparatus are provided. The method includes: A first terminal side device determines a frequency domain resource of a scheduled first physical downlink shared channel (PDSCH), where the first PDSCH corresponds to a first demodulation reference signal (DM-RS) on a first antenna port; and when the frequency domain resource includes N consecutive frequency domain units, and there is a second DM-RS on a second antenna port in each of L consecutive frequency domain units in the N frequency domain units, determines that precoding of each second DM-RS is the same. The second DM-RS and the first DM-RS are in a same code division multiplexing (CDM) group, the second DM-RS corresponds to a second PDSCH scheduled for a second terminal side device, each N and L is an integer greater than 1, and L is less than or equal to N.