公开(公告)号：US20190199474A1

公开(公告)日：2019-06-27

申请号：US16291921

申请日：2019-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying CHEN ,  Rong LI ,  Jun WANG ,  Hejia LUO ,  Yunfei QIAO

IPC: H04L1/00

CPC classification number: H04L1/0057 ,  H03M13/13 ,  H04L1/00 ,  H04L1/0009

Abstract: A polar code coding method and apparatus are provided. The method includes: determining, based on a target code length corresponding to an information bit sequence, a first mother code length corresponding to the information bit sequence; and performing polar code coding on the information bit sequence based on the first mother code length and mapping relationship information, where the mapping relationship information includes a correspondence between a mother code length and at least one of the following: a transport block size, a construction work point, or a construction sequence. In the method provided in the embodiments of the present invention, polar code coding may be directly performed on the information bit sequence based on at least one of a first transport block size, a first construction work point, or a first construction sequence, so as to reduce coding overheads in a polar code coding process.

公开(公告)号：US20190132084A1

公开(公告)日：2019-05-02

申请号：US16231521

申请日：2018-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi ZHANG ,  Jian WANG ,  Rong LI ,  Rongdao YU ,  Lu RONG

IPC: H04L1/06 ,  H04W28/02 ,  H04W72/04

Abstract: This application discloses a user sequence transmission method, a network device, and a terminal device. The method includes: sending, by a network device, first signaling to a terminal device, where the first signaling includes first information indicating a quantity of user sequences in a first user sequence space, and the user sequences in the first user sequence space include a universal set of user sequences used by the terminal device served by the network device; receiving, by the network device, a first user sequence sent by the terminal device based on the first information; and performing, by the network device, user detection and/or communication parameter estimation based on the first user sequence.

公开(公告)号：US20190069282A1

公开(公告)日：2019-02-28

申请号：US16170730

申请日：2018-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hejia LUO ,  Yue ZHOU ,  Rong LI

IPC: H04W72/04

Abstract: Embodiments of this application provide a time-frequency resource allocation method and apparatus. The method includes: determining, by a network device, N terminal device types based on a current movement speed of a terminal device within a coverage area, where the N terminal device types are in a one-to-one correspondence with N demodulation reference signals (DMRSs) with different time domain densities; classifying, by the network device, available time-frequency resources into N time-frequency resource groups based on the N terminal device types, where a first DMRS in the N DMRSs is configured for a first time-frequency resource group in the N time-frequency resource groups; and sending, by the network device, resource indication information to the terminal device based on the N time-frequency resource groups.