公开(公告)号：US20200336260A1

公开(公告)日：2020-10-22

申请号：US16918507

申请日：2020-07-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei LIU ,  Lei CHEN ,  Jing QIU ,  Xiaoyong TANG

IPC: H04L5/00 ,  H04W56/00

Abstract: Examples synchronization signal configuration methods and apparatus are described. One example method is applied to a relay network including a first node and a second node, and the first node is a parent node of the second node. The example method includes sending synchronization signal configuration information by the first node to the second node, where the synchronization signal configuration information is used to indicate M first synchronization signal time-frequency positions and N second synchronization signal time-frequency positions in a candidate synchronization signal time-frequency position set. The first synchronization signal time-frequency position is used by the second node to send a first synchronization signal, the second synchronization signal time-frequency position is used by the second node to receive or detect a second synchronization signal, the candidate synchronization signal time-frequency position set includes W synchronization signal time-frequency positions, and W≥(M+N).

公开(公告)号：US20200288485A1

公开(公告)日：2020-09-10

申请号：US16881275

申请日：2020-05-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei CHEN ,  Fengwei LIU ,  Jing QIU

IPC: H04W72/12 ,  H04W72/04 ,  H04W80/08 ,  H04W28/26

Abstract: This application provides a scheduling method, to implement flexible scheduling in a relay network. The method includes: determining, by a first device, information about a transmission time difference, where the transmission time difference is a time difference between a control channel of a first link and a data channel that is of the first link and that is scheduled by the control channel of the first link; notifying a second device of the information about the transmission time difference; and performing, by the second device, scheduling based on the information about the transmission time difference. In this way, the second device determines whether a resource needs to be reserved for the data channel of the first link, and it is possible that a time division resource, a frequency division resource, or a space division resource is shared for data of the first link and data of a second link.

公开(公告)号：US20200052944A1

公开(公告)日：2020-02-13

申请号：US16659310

申请日：2019-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi ZHANG ,  Fengwei LIU ,  Lei CHEN ,  Minghui XU

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: A PTRS processing method and an apparatus. The method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level, so that PTRS collision between terminals can be avoided to an extent, thereby improving phase tracking precision.