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公开(公告)号：US12267698B2
公开(公告)日：2025-04-01
申请号：US17825512
申请日：2022-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dongcheng Pan , Bo Yang , Peng Chen , Yinliang Hu , Fangchao Yuan , Wei Gu , Jia Ke Li
Abstract: In an embodiment an interference cancellation method includes generating, by a first device, a first packet, wherein the first packet comprises a first group of elements, a second group of elements, and user data, the first group of elements being different from the second group of elements and sending, by the first device, the first packet to a second device by using at least one pair of subcarriers, wherein two subcarriers in the at least one pair of subcarriers are symmetrical with respect to a direct current subcarrier, and wherein the first packet is usable by the second device to cancel interference in the user data based on the first group of elements and the second group of elements.
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公开(公告)号：US12058069B2
公开(公告)日：2024-08-06
申请号：US17489650
申请日：2021-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fangchao Yuan , Bo Yang , Yinliang Hu
CPC classification number: H04L5/0048 , H04L5/0053 , H04L25/03006 , H04L2025/0377 , H04L2025/03815
Abstract: This application provides a training sequence transmission method and apparatus. The method includes: A first AP broadcasts a trigger frame, where the trigger frame indicates a time sequence of separately sending channel sounding frames by N STAs, and N is an integer greater than 1. The first AP receives the channel sounding frames sequentially sent by the N STAs, where one channel sounding frame includes one or more training sequences. In this solution, only one trigger frame needs to be sent, so that the N STAs can be triggered to separately report channel sounding frames to M+1 APs. However, in the conventional technology, each AP needs to send one channel training request to each STA, that is, N×(M+1) channel training requests are sent in total, to trigger each STA to report a training sequence. Therefore, this solution can significantly reduce signaling overheads.
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公开(公告)号：US09967116B2
公开(公告)日：2018-05-08
申请号：US15416800
申请日：2017-01-26
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L25/14 , H04B1/00 , H04B1/006 , H04B1/28 , H04L7/033 , H04L25/49 , H04W24/02 , H04W88/00
Abstract: A transceiver includes: a baseband control apparatus (21); an up-conversion apparatus (22), connected to the baseband control apparatus (21), and configured to perform up-conversion on a baseband signal generated by the baseband control apparatus (21), to obtain an intermediate frequency signal; at least two radio frequency channels (23) disposed in parallel, connected to the up-conversion apparatus (22), and configured to perform frequency conversion, amplification, and filtering on the intermediate frequency signal, to obtain a radio frequency signal corresponding to the frequency band covered by the each radio frequency channel; and an antenna (24), connected in series with an output end of any radio frequency channel of the at least two radio frequency channels (23), and configured to transmit the radio frequency signal obtained by the radio frequency channel. The transceiver enables relatively high wireless communication performance when an ultra wide bandwidth is implemented.
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公开(公告)号：US09717081B2
公开(公告)日：2017-07-25
申请号：US14946025
申请日：2015-11-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tingwei Xu , Xiaofei Ma , Jie Ma , Xiaoxiao Zheng , Zongjie Wang , Xueli Ma , Jing Li , Chuanfeng He , Bo Yang
CPC classification number: H04W72/0433 , H04L1/00 , H04L5/0035 , H04L5/0058 , H04L5/0098 , H04L2001/0092 , H04W36/06 , H04W72/0453 , H04W88/12
Abstract: A method for managing uplink carrier frequencies is provided, which is applicable to the field of communication. The method includes the following steps: A state switching response message sent by a UE is received, where the state switching response message includes a result of state switching performed by on a secondary uplink carrier serving cell; The result of the state switching is notified to a secondary uplink carrier non-serving cell in a secondary carrier active set through an RNC. A device and a system for managing uplink carrier frequencies are further provided. Through the method, device, and system provided in embodiments of the present invention, the uplink carrier frequencies are managed, so as to facilitate transmission of uplink data during multi-cell collaboration.
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公开(公告)号：US09060339B2
公开(公告)日：2015-06-16
申请号：US14097959
申请日：2013-12-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bo Yang , Chuanfeng He , Xueli Ma , Zongjie Wang , Jing Li , Jie Ma
CPC classification number: H04W52/16 , H04W36/385 , H04W52/346 , H04W52/367
Abstract: A power control method and device are used for achieving transmit power control of a User Equipment (UE) in a multi-carrier mode. The power control method includes: calculating a transmit power of a UE when the UE sends data through a plurality of carriers; and performing power compression on each carrier either step by step according to property parameters of each carrier or synchronously according to a compression ratio, when the transmit power of the UE exceeds a preset maximum transmit power. A power control device is further provided.
Abstract translation: 功率控制方法和装置用于以多载波模式实现用户设备（UE）的发射功率控制。 功率控制方法包括：当UE通过多个载波发送数据时，计算UE的发射功率; 并且当UE的发射功率超过预设的最大发射功率时，根据每个载波的属性参数或者按照压缩比同步地对每个载波进行功率压缩。 还提供一种功率控制装置。
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Patent Agency Ranking
公开(公告)号：US20240393748A1
公开(公告)日：2024-11-28
申请号：US18699314
申请日：2022-10-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaodong Li , Menglong Zhao , Bo Yang , Wenjian Yang , Zhuang Liu , Nan Lin
Abstract: This application provides a wearable device, including an antenna radiator, a Satellite communication module, and a processor. The Satellite communication module includes a satellite positioning unit and a short packet unit. The satellite positioning unit is configured to obtain, under control of the processor, global positioning information by using the antenna radiator. The short packet unit is configured to multiplex, under control of the processor, the antenna radiator to receive or send a Satellite short packet. This application further provides a Satellite short packet sending method applied to the wearable device, and the method includes: When receiving an input signal and/or when determining that a current environment meets a trigger condition, the processor of the wearable device controls the Satellite communication module to send the Satellite short packet by using the antenna radiator.
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公开(公告)号：US12120046B2
公开(公告)日：2024-10-15
申请号：US17504653
申请日：2021-10-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L5/00 , H04W72/0446 , H04W72/27 , H04W74/00 , H04W74/0808
CPC classification number: H04L5/0032 , H04W72/0446 , H04W72/27 , H04W74/002 , H04W74/0808
Abstract: This application provides a data transmission method and apparatus. The method includes: A first access point detects a channel. If the first access point detects an idle first channel, the first access point sends a first trigger frame to at least one second access point, where the first trigger frame is used to trigger the at least one second access point to send data on the first channel after a first preset time period elapses. In this way, an existing CSMA channel detection mechanism may be compatible with the method, and a conflict caused by contention of a plurality of APs for a channel at the same time can be avoided, which helps improve network transmission efficiency, and helps improve transmission performance.
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公开(公告)号：US11902054B2
公开(公告)日：2024-02-13
申请号：US17691480
申请日：2022-03-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fangchao Yuan , Peng Chen , Bo Yang
IPC: H04L25/02
CPC classification number: H04L25/0204 , H04L25/0242
Abstract: This application provides an uplink multi-station channel estimation method, a station (STA), and an access point (AP), which can be applied to an uplink multi-user multiple-input multiple-output scenario. The uplink multi-station channel estimation method includes: a STA generating a frame including a first group of training sequences and a second group of training sequences, and sending the frame to the AP. The AP calculates a frequency offset value between the STA and the AP based on the received first group of training sequences and the received second group of training sequences. The AP performs channel estimation based on the calculated frequency offset value. According to the technical solutions provided in this application, the AP can more accurately learn of frequency offset values between a plurality of STAs and the AP. This improves channel estimation precision.
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公开(公告)号：US20230199831A1
公开(公告)日：2023-06-22
申请号：US18168404
申请日：2023-02-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bo Yang , Yongchao Yang , Yunping Lyu , Yinliang Hu
IPC: H04W74/08
Abstract: This application relates to the field of wireless fidelity technologies, and in particular, to a channel access method and a communication apparatus. The method includes: A first access point sends a management frame to a first device, where the management frame includes first indication information, the first indication information indicates at least one first reserved resource that first traffic is allowed to contention-based access, and the at least one first reserved resource only includes a time-frequency resource; and then the first device initiates channel access on the at least one first reserved resource, and transmits the first traffic. Because the at least one first reserved resource is specially reserved for the first traffic, it may be considered that traffic other than the first traffic does not contention-based access the at least one first reserved resource.
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公开(公告)号：US09980289B2
公开(公告)日：2018-05-22
申请号：US14958874
申请日：2015-12-03
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W74/0816 , H04W74/006 , H04W84/12
Abstract: Embodiments of the present invention provide a method and an apparatus for establishing a transmission mode, which relates to the field of network technologies, ensure backward compatibilities of an existing WLAN system and a next generation WLAN system, realize introduction of a new technology in the next generation WLAN protocol during data transmission, and improve network performance. The method includes: transmitting, by an access point AP, a first Clear To Send frame to a first station STA, to enable the first STA to set duration of a network allocation vector NAV of the first STA and remain in a silent state when the AP communicates with a second STA; transmitting the first Clear To Send frame to the second STA, to enable the second STA to process a Green Phase operation; and communicating with the second STA in a Green Phase period. The present invention is applied in data transmission.
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