公开(公告)号：US20220231887A1

公开(公告)日：2022-07-21

申请号：US17716502

申请日：2022-04-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying ZHANG ,  Weihua WANG ,  Chunhui LE

IPC: H04L25/02

Abstract: This application discloses a channel estimation method and apparatus. When time-domain channel estimation is performed on a first slot, the first slot and at least one second slot are first determined. The first slot and each second slot form continuous slots. Then, a first signal corresponding to the first slot and a second signal corresponding to each second slot are obtained, and a time-domain channel estimate for the first slot is determined based on the first signal and each second signal. In embodiments of this application, when a time-domain channel estimate for a specific slot is determined, time-domain channel estimation is performed by using time-domain correlation of channels in combination with signals of a plurality of slots, so as to obtain a more accurate channel estimation result, thereby improving baseband demodulation performance.

公开(公告)号：US20220015111A1

公开(公告)日：2022-01-13

申请号：US17484855

申请日：2021-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Senbao GUO ,  Chunhui LE ,  Weihua WANG ,  Ning YANG

IPC: H04W72/12 ,  H04W76/14 ,  H04L5/00 ,  H04L27/26

Abstract: Embodiments of this application disclose a user pairing method and a related device. The method includes: first, determining a first generation parameter of a first base sequence of a first user and a second generation parameter of a second base sequence of a second user, and the second base sequence is used to generate a second uplink reference signal of the second user; then, determining multiplexing evaluation information based on the first generation parameter and the second generation parameter, where the multiplexing evaluation information may include correlation strength between sequences and interference leakage width; afterwards, determining, based on the multiplexing evaluation information, whether the first user and the second user are successfully paired. Finally, when the first user and the second user are successfully paired, it is determined that the first user and the second user multiplex a same communication resource for communication.

公开(公告)号：US20240073080A1

公开(公告)日：2024-02-29

申请号：US18495994

申请日：2023-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang HUO ,  Zhi YANG ,  Xi CHEN ,  Chunhui LE

IPC: H04L27/32

CPC classification number: H04L27/32

Abstract: A method for obtaining information about a channel and an apparatus are provided. The method includes: obtaining N+1 first feedback signals Yn from a passive inter-modulation source; obtaining first update direction information p based on the N+1 first feedback signals Yn; and obtaining information about a channel with the passive inter-modulation source based on the first update direction information p. According to the method and the apparatus in this application, complexity of obtaining the information about the channel with the passive inter-modulation source can be reduced, time and power consumption required for obtaining the information about the channel can be reduced, and accuracy of the information about the channel can be improved.

公开(公告)号：US20150003427A1

公开(公告)日：2015-01-01

申请号：US14470505

申请日：2014-08-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li WAN ,  Chunhui LE

IPC: H04W74/08 ,  H04W72/02 ,  H04W72/04

CPC classification number: H04W74/0891 ,  H04W72/02 ,  H04W72/042

Abstract: A random access method includes: selecting from a specified number of access sequences used by a cell any one access sequence as a first access sequence; mapping the first access sequence onto a bandwidth according to a preset subcarrier spacing to generate a first random access signal, the subcarrier spacing is less than 1.25 kHz; sending the random access signal to a base station; receiving a timing advance adjustment command; adjusting a timing advance, and sending a first message to the base station according to the adjusted timing advance so that the base station demodulates the first message and enables the terminal to access a physical random access channel. This method allows a terminal at a very long distance to access a physical random access channel.

Abstract translation: 随机接入方法包括：从小区使用的指定数量的接入序列中选择任何一个接入序列作为第一接入序列; 根据预设的子载波间隔将第一接入序列映射到带宽上以产生第一随机接入信号，子载波间隔小于1.25kHz; 向所述基站发送所述随机接入信号; 接收定时提前调整指令; 调整定时提前，并根据经调整的定时提前向基站发送第一消息，使得基站解调第一消息，并使终端能够访问物理随机接入信道。 该方法允许非常长距离的终端访问物理随机接入信道。