公开(公告)号：US20170034848A1

公开(公告)日：2017-02-02

申请号：US15295653

申请日：2016-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Dageng Chen ,  Hejia Luo

IPC: H04W72/12 ,  H04W40/02 ,  H04W24/10

CPC classification number: H04W72/1289 ,  H04B7/0417 ,  H04B7/0486 ,  H04B7/0632 ,  H04B7/0697 ,  H04W24/10 ,  H04W40/02 ,  H04W72/02

Abstract: Embodiments provide a spatial flow determining method, a base station, and user equipment. The method includes sending, by a base station, a feedback mode indication to user equipment, where the feedback mode indication is used to instruct the user equipment to feed back, based on a packet granularity, channel state report (CSR) information, and each packet granularity includes at least one spatial flow. The method also includes receiving, by the base station, CSR information of each packet granularity that is sent by the user equipment; and determining, by the base station according to the CSR information of each packet granularity, a spatial flow used to transmit data to the user equipment.

Abstract translation: 实施例提供了空间流确定方法，基站和用户设备。 该方法包括：由基站向用户设备发送反馈模式指示，其中反馈模式指示用于指示用户设备反馈，基于分组粒度，信道状态报告（CSR）信息和每个 分组粒度包括至少一个空间流。 该方法还包括由基站接收由用户设备发送的每个分组粒度的CSR信息; 以及由基站根据每个分组粒度的CSR信息确定用于向用户设备发送数据的空间流。

公开(公告)号：US12278702B2

公开(公告)日：2025-04-15

申请号：US18485303

申请日：2023-10-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Wang ,  Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Lingchen Huang ,  Shengchen Dai ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jian Wang ,  Ying Chen ,  Nikita Andreevich Polianskii ,  Mikhail Sergeevich Kamenev ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/00 ,  H03M13/09 ,  H03M13/29

Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.

公开(公告)号：US12218816B2

公开(公告)日：2025-02-04

申请号：US17886739

申请日：2022-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu Wang ,  Hejia Luo ,  Ying Chen ,  Rong Li ,  Bin Wang

IPC: H04W4/00 ,  H04L43/0864

Abstract: Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (TA) by a terminal, and reduce inter-symbol interference (ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is a delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.

公开(公告)号：US12213012B2

公开(公告)日：2025-01-28

申请号：US17504347

申请日：2021-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Wang ,  Hejia Luo ,  Xian Meng ,  Yunfei Qiao

IPC: H04W36/00 ,  H04W36/32

Abstract: Embodiments of this application disclose cell handover measurement indication methods, a network device, and a terminal, to improve reliability and real-time performance of cell handover. A cell handover measurement indication method includes: A network device calculates a measurement moment of cell handover based on a measurement event and sends a measurement indication. The measurement event is a location relationship between a terminal and the network device, and the measurement indication is used to indicate the terminal to perform cell handover measurement. The measurement indication sent by the network device may be used to notify the measurement moment of cell handover to the terminal.

公开(公告)号：US12149396B2

公开(公告)日：2024-11-19

申请号：US17738863

申请日：2022-05-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianwei Zhou ,  Chenlei Xu ,  Hejia Luo ,  Xiaolu Wang

IPC: H04L27/26 ,  H04W56/00 ,  H04W74/0833

Abstract: A terminal apparatus is provided. The terminal apparatus obtains synchronization signal and physical broadcast channel (PBCH) blocks (SSBs) in a plurality of beams; then determines a target beam in the plurality of beams based on an association relationship between an SSB index and a first random access preamble, where the first random access preamble is determined based on a cyclic shift and/or an order of symbols; and finally sends the random access preamble by using the target beam to initiate a random access request. A communication device receives the first random access preamble in the random access request sent by the terminal apparatus, and then, determines, based on the association relationship, the target beam accessed by the terminal apparatus. The first random access preamble is determined based on the cyclic shift and/or the order of symbols.

公开(公告)号：US12101669B2

公开(公告)日：2024-09-24

申请号：US17702958

申请日：2022-03-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Wang ,  Yunfei Qiao ,  Rong Li ,  Jianwei Zhou ,  Hejia Luo

IPC: H04W36/00 ,  H04B7/185 ,  H04W48/12

CPC classification number: H04W36/0055 ,  H04B7/18513 ,  H04W36/0061 ,  H04W48/12

Abstract: The technology of this application relates to an information transmission method, an apparatus, and a system. The method includes user equipment receives first indication information sent by a first network device, where the first indication information includes a polarization method of a target cell, and the user equipment performs cell measurement on the target cell based on the polarization method of the target cell. According to the method, the user equipment can obtain the polarization method of the target cell before entering the target cell. In this way, when performing cell handover and reselection, the user equipment can enable, based on the polarization method of the target cell, only a port corresponding to the polarization method of the target cell, to receive a satellite signal, and perform cell measurement on the target cell, to complete cell handover and reselection procedures.

公开(公告)号：US20240235662A9

公开(公告)日：2024-07-11

申请号：US18400101

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingwei Zhang ,  Tianhang Yu ,  Hejia Luo ,  Shengchen Dai ,  Yunfei Qiao ,  Rong Li ,  Jun Wang

IPC: H04B7/185

CPC classification number: H04B7/18532

Abstract: This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by −1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.

公开(公告)号：US20240205962A1

公开(公告)日：2024-06-20

申请号：US18540088

申请日：2023-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuili Kong ,  Gongzheng Zhang ,  Yunfei Qiao ,  Hejia Luo

IPC: H04W74/00 ,  H04L1/00 ,  H04W56/00 ,  H04W74/0833 ,  H04W76/11

CPC classification number: H04W74/008 ,  H04L1/0061 ,  H04W56/0045 ,  H04W56/009 ,  H04W74/0833 ,  H04W76/11

Abstract: A random access method includes sending a random access preamble to a base station on a first time domain resource, obtaining an index value of the first time domain resource, obtaining an index difference between the first time domain resource and a second time domain resource, obtaining an index value of the second time domain resource by adding the index value of the first time domain resource and the index difference, obtaining a random access radio network temporary identifier (RA-RNTI) based on the index value of the second time domain resource, receiving a random access response (RAR) from the base station, and descrambling a cyclic redundancy check (CRC) code of the RAR using the RA-RNTI.

公开(公告)号：US20230403069A1

公开(公告)日：2023-12-14

申请号：US18458161

申请日：2023-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Wang ,  Hejia Luo ,  Yunfei Qiao ,  Ying Chen ,  Xiaolu Wang ,  Rong Li

IPC: H04B7/185 ,  H04W64/00 ,  H04W72/0446

CPC classification number: H04B7/18513 ,  H04B7/18519 ,  H04W64/00 ,  H04W72/0446

Abstract: In a communication method, to meet a requirement of a positioning service, a first communication apparatus obtains data to be processed, and determines a first frame structure that includes a communication time period and a positioning time period. A first switching time period is included between the communication time period and the positioning time period, a 1st time-domain symbol occupied by the first switching time period is consecutive to a last time-domain symbol occupied by the communication time period, and a last time-domain symbol occupied by the first switching time is consecutive to a 1st time-domain symbol occupied by the positioning time period. The first communication apparatus then processes the data based on the first frame structure.

公开(公告)号：US11770159B2

公开(公告)日：2023-09-26

申请号：US17882200

申请日：2022-08-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying Chen ,  Jianwei Zhou ,  Hejia Luo ,  Xiaolu Wang ,  Rong Li ,  Jun Wang

IPC: H04W56/00 ,  H04B7/01 ,  H04L5/00

CPC classification number: H04B7/01 ,  H04L5/0051 ,  H04W56/0035 ,  H04W56/0045

Abstract: This application discloses a frequency compensation method and apparatus, to improve performance of frequency compensation. The method includes: determining a change rate of a Doppler frequency shift value based on a weighted change rate of a change rate of a timing advance TA, determining the Doppler frequency shift value based on the change rate of the Doppler frequency shift value, and performing frequency compensation based on the determined Doppler frequency shift value; or determining a frequency offset value based on the Doppler frequency shift value with reference to pre-compensation and based on a reference signal, to further determine a frequency offset value, and performing frequency compensation based on the frequency offset value.