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公开(公告)号：US20200305056A1
公开(公告)日：2020-09-24
申请号：US16895181
申请日：2020-06-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mengyao MA , Yanchun LI , Xiao HAN
Abstract: A communications method and device, to reduce service interruption time and signaling overheads that are generated when an access point that provides a communication service for a station changes because the station moves or changes a direction. First frames sent by different access points in an access point set to a station include a same sending address. In this way, when the station moves or changes a direction, the access point that provides the communication service for the station changes from one access point in the access point set to another access point. Because first frames sent by access points in the access point set include a same sending address, the station may consider the access point set as one access point.
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公开(公告)号：US20190150090A1
公开(公告)日：2019-05-16
申请号：US16247857
申请日：2019-01-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mao Yang , Bo LI , Yanchun LI
Abstract: This application discloses a scheduling method, an access point, and a station. The method includes generating, by an access point AP, a first frame, where the first frame includes reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame includes an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame, and broadcasting, by the AP, the first frame to at least one STA.
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公开(公告)号：US20180310338A1
公开(公告)日：2018-10-25
申请号：US16017021
申请日：2018-06-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanchun LI , Yuchen GUO , Yunbo LI , Xun YANG
CPC classification number: H04W74/0816 , H04L5/0094 , H04W4/00 , H04W28/06 , H04W72/0446 , H04W72/087 , H04W72/1268 , H04W74/008
Abstract: Embodiments of the present invention provide an access method, including: sending, to an access point, a first frame that carries uplink transmission requirement information; and if a second frame that carries information about an uplink transmission resource is received from the access point within agreed time period, sending uplink multi-user transmission data to the access point, where the uplink multi-user transmission data is transmitted on the uplink transmission resource; or if the second frame is not received within an agreed time period, accessing, by a station, a channel in a contention access manner that is based on carrier sense CSMA/CA. According to the method provided in the embodiments of the present invention, a channel access manner can be managed, a congestion degree of a system can be decreased, and channel utilization can be increased.
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公开(公告)号：US20220353813A1
公开(公告)日：2022-11-03
申请号：US17750127
申请日：2022-05-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mao Yang , Bo LI , Yanchun LI
Abstract: This application discloses a scheduling method, an access point, and a station. The method includes: generating, by an access point AP, a first frame, where the first frame includes reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame includes an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and broadcasting, by the AP, the first frame to at least one STA. Therefore, by using the method provided in the present invention, dynamic network changes can be supported through unified scheduling of the AP, and this is favorable to coordination between the AP and the STA, thereby better reducing power consumption of the STA.
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公开(公告)号：US20220330341A1
公开(公告)日：2022-10-13
申请号：US17724054
申请日：2022-04-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanchun LI , Yuchen GUO , Yunbo LI , Xun YANG
Abstract: The application provide an access method, including: sending, to an access point, a first frame that carries uplink transmission requirement information; and if a second frame that carries information about an uplink transmission resource is received from the access point within agreed time period, sending uplink multi-user transmission data to the access point, where the uplink multi-user transmission data is transmitted on the uplink transmission resource; or if the second frame is not received within an agreed time period, accessing, by a station, a channel in a contention access manner that is based on carrier sense CSMA/CA.
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Patent Agency Ranking
公开(公告)号：US20220256455A1
公开(公告)日：2022-08-11
申请号：US17730990
申请日：2022-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanchun LI , Zhou LAN , Yunbo LI
Abstract: When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
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公开(公告)号：US20170208626A1
公开(公告)日：2017-07-20
申请号：US15473357
申请日：2017-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo LI , Zhou LAN , Yanchun LI
IPC: H04W74/08
CPC classification number: H04W74/0808 , H04W74/08 , H04W84/12
Abstract: Embodiments of the present application disclose a multichannel access method, including: obtaining a transmission opportunity TXOP of a first reserved channel; sensing a non-reserved channel other than the first reserved channel in a preset time segment in the TXOP, and if the non-reserved channel is in an idle state, using the non-reserved channel as a second reserved channel; and when an ending moment of the preset time segment is reached, sending a current data frame on the first reserved channel and the second reserved channel. Correspondingly, the embodiments of the present application further disclose a multichannel access apparatus. Channel utilization can be improved by implementing the embodiments of the present application.
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公开(公告)号：US20170163322A1
公开(公告)日：2017-06-08
申请号：US15440687
申请日：2017-02-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanchun LI , Yunbo Li
IPC: H04B7/0456 , H04W74/00 , H04W74/08
Abstract: Embodiments provide an access method and a device, where the method includes: determining that N second receiving devices communicate with a second sending device by using a radio resource, where N is a positive integer greater than or equal to 1; obtaining a receive effective channel vector from each second receiving device to a first sending device; obtaining a transmit antenna spatial correlation matrix of the first sending device; determining M transmit vectors; and separately communicating, by the first sending device, with K first receiving devices by using K of the M transmit vectors, where K is a positive integer less than or equal to M. According to the foregoing technical solutions, in a case in which the radio resource has been occupied by the second receiving device, the first sending device can send data by using the radio resource.
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公开(公告)号：US20210368537A1
公开(公告)日：2021-11-25
申请号：US17393039
申请日：2021-08-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanchun LI , Yunbo LI
Abstract: A communication method disclosed in the present disclosure includes: receiving, by an access point, a sending request sent by a first station, and sending clear to send information to the first station; when the access point receives feedback information sent by the first station, allocating, by the access point, a channel to the first station, and allocating a channel to a second station based on remaining bandwidth; generating a first trigger frame, and sending the first trigger frame to the first station and the second station; and receiving uplink data sent by the first station and the second station. The present disclosure further provides an access point and a station that can implement the communication method. According to the present disclosure, bandwidth utilization of the access point and data transmission efficiency can be improved.
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公开(公告)号：US20210250147A1
公开(公告)日：2021-08-12
申请号：US17241689
申请日：2021-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Min YAN , Guangjian WANG , Wei LIN , Mengyao MA , Yanchun LI
IPC: H04L5/00
Abstract: A communications apparatus includes a processor configured to generate a radio frame. The radio frame comprises a data block. The data block comprises a plurality of N pilot blocks, a plurality of M sub-data blocks, and one guard interval (GI). Every two N pilot blocks of the plurality of N pilot blocks are not adjacent. The GI is located at a tail end of the data block, 4≤N≤8, N is an integer, M≥N−1, and M is an integer. The communications apparatus also includes transceiver configured to send the radio frame to a receiver.
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