公开(公告)号：US10091803B2

公开(公告)日：2018-10-02

申请号：US15219748

申请日：2016-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wu

IPC: H04W72/04 ,  H04W72/12 ,  H04W74/08 ,  H04W84/12

Abstract: Embodiments disclose a channel resource allocation method and a communications device. The method includes acquiring, by a first device, scheduling information from an access point. The method also includes, if the first device is pre-scheduled by the access point according to the scheduling information to receive data from a second device in a first timeslot of a first channel, and before a start moment of data transmission time corresponding to the first timeslot of the first channel, sending, by the first device, a contention frame to contend for the first timeslot of the first channel.

公开(公告)号：US09907089B2

公开(公告)日：2018-02-27

申请号：US14823746

申请日：2015-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxin Zhang ,  Xun Yang ,  Tianyu Wu ,  Menghong Liu

IPC: H04W72/14 ,  H04W72/04 ,  H04L1/16 ,  H04B7/0452 ,  H04W74/08 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04W72/14 ,  H04B7/0452 ,  H04L1/1614 ,  H04L1/1685 ,  H04L2001/0092 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/0833 ,  H04W84/12

Abstract: Embodiments of the present invention disclose a method and an apparatus for retrieving transmission opportunity control in reverse direction grant. The method includes: obtaining, by a reverse direction responder (RD responder), a TXOP control from a reverse direction initiator (RD initiator); enabling, by the RD responder, a multi-user multiple-input multiple-output (MU-MIMO) mode; sending, by the RD responder, a frame to a plurality of stations concurrently in a TXOP period, the plurality of stations comprise the RD initiator; wherein the frame carries information that only requires the RD initiator to send back only a single acknowledgement in the TXOP period to return the TXOP control.

公开(公告)号：US09730241B2

公开(公告)日：2017-08-08

申请号：US14467958

申请日：2014-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wu ,  Chen Chen ,  Lina Zhu ,  Jin Yang

IPC: H04W72/12 ,  H04W74/08 ,  H04W74/00 ,  H04W74/02

CPC classification number: H04W72/121 ,  H04W74/006 ,  H04W74/02 ,  H04W74/08

Abstract: A scheduling method, including: listening to, by a station, a first beacon frame containing a DTIM message used for indicating a beacon interval allocated for each group of stations within a current scheduling period; determining the beacon interval allocated for the station within the current scheduling period according to the DTIM message contained in the first beacon frame; listening to, by the station, within the beacon interval allocated for the station, a second beacon frame containing scheduling information of the current beacon interval used for indicating a time period allocated to each group of stations for data transmission within the current beacon interval; when data transmission is required, transmitting, by the station, data within the time period allocated to the group of the station according to indication of the scheduling information. The present invention improves utilization of time periods, saves time resources and enhances transmission efficiency.

公开(公告)号：US09655136B2

公开(公告)日：2017-05-16

申请号：US14095006

申请日：2013-12-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lvxi Yang ,  Hao Li ,  Chunguo Li ,  Tianyu Wu

IPC: H04W4/00 ,  H04W72/12 ,  H04W84/12

CPC classification number: H04W72/1263 ,  H04W72/1268 ,  H04W84/12

Abstract: Embodiments of the present invention relate to communication technologies, in particular, to a method and an apparatus for protocol transmission in a wireless local area network. A method for transmitting multi-user data in a reverse direction protocol according to an embodiment of the present invention includes: within a transmission opportunity (TXOP) of a first station, if the TXOP is not over after the first station finishes sending data to an access point (AP), obtaining, by the AP, the TXOP, where the obtaining, by the AP, the TXOP is implemented through granting a remaining part of the TXOP to the access point AP by the first station as a reverse direction protocol initiator; and within the TXOP, sending, by the AP, second data to at least two stations, where the at least two stations include the first station.

公开(公告)号：US09622157B2

公开(公告)日：2017-04-11

申请号：US14335423

申请日：2014-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wu ,  Chen Chen ,  Lina Zhu ,  Changle Li

IPC: H04W48/16 ,  H04W72/04 ,  H04W72/12 ,  H04W24/10

CPC classification number: H04W48/16 ,  H04W24/10 ,  H04W72/04 ,  H04W72/121

Abstract: Embodiments of the present invention provide a node grouping method, a node, and an access point (AP). The method comprises: receiving a grouping request sent by an AP; according to the grouping request, obtaining a received signal strength indicator (RSSI); obtaining a group Identity (ID) of a group determined according to the RSSI. In the embodiment of the present invention, nodes are grouped according to the RSSI, so as to solve the problems of contention collision and low network performance in a large-scale network, avoid the problem of unfair throughput incurred by the near-far effect, and reduce the phenomena of hidden terminals.

公开(公告)号：US09559760B2

公开(公告)日：2017-01-31

申请号：US14823650

申请日：2015-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang ,  Yunbo Li ,  Tianyu Wu ,  Hufei Zhu

IPC: H04B17/00 ,  H04J3/16 ,  H04B7/04 ,  H04W72/12 ,  H04L12/58 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L51/043 ,  H04W72/1231 ,  H04W72/1236 ,  Y02B60/50 ,  Y02D70/142 ,  Y02D70/444

Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.

Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，并接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。

公开(公告)号：US20160338106A1

公开(公告)日：2016-11-17

申请号：US15220258

申请日：2016-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jun Zhu ,  Jiayin Zhang ,  Tianyu Wu

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W74/0816 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/1263 ,  H04W88/02

Abstract: Embodiments provide a channel contention method and apparatus. The channel contention apparatus belongs to a basic service set (BSS). The BSS includes an access point (AP) and at least one first station (STA). Both the AP and the at least one first STA participate in channel contention. The apparatus is the AP or any first STA. The apparatus includes a sensing module configured to sense a channel. The apparatus also includes a contention module configured to contend for the channel. The AP centrally performs control and scheduling so that all of at least one network device in the BSS can transmit data by using the channel.

Abstract translation: 实施例提供了一种信道争用方法和装置。 信道争用装置属于基本业务集（BSS）。 BSS包括接入点（AP）和至少一个第一站（STA）。 AP和至少一个第一STA都参与频道争用。 该设备是AP或任何第一STA。 该装置包括被配置为感测通道的感测模块。 该装置还包括被配置为竞争该信道的争用模块。 AP集中地执行控制和调度，使得BSS中的所有至少一个网络设备可以通过使用该信道来发送数据。

公开(公告)号：US20160338085A1

公开(公告)日：2016-11-17

申请号：US15219748

申请日：2016-07-26

Applicant: Huawei Technologies Co., Ltd

Inventor： Tianyu Wu

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W72/1242 ,  H04W72/0446 ,  H04W72/1278 ,  H04W74/0816 ,  H04W84/12

Abstract: Embodiments disclose a channel resource allocation method and a communications device. The method includes acquiring, by a first device, scheduling information from an access point. The method also includes, if the first device is pre-scheduled by the access point according to the scheduling information to receive data from a second device in a first timeslot of a first channel, and before a start moment of data transmission time corresponding to the first timeslot of the first channel, sending, by the first device, a contention frame to contend for the first timeslot of the first channel.

Abstract translation: 实施例公开了信道资源分配方法和通信设备。 该方法包括由第一设备从接入点获取调度信息。 该方法还包括如果第一设备根据调度信息由接入点预先调度，以在第一信道的第一时隙中从第二设备接收数据，并且在对应于第一信道的数据传输时间的开始时刻之前 第一信道的第一时隙，由第一设备发送争用第一信道的第一时隙的争用帧。

公开(公告)号：US20160330631A1

公开(公告)日：2016-11-10

申请号：US15214116

申请日：2016-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wu

IPC: H04W16/14 ,  H04W74/04 ,  H04W24/02 ,  H04W74/08

CPC classification number: H04W16/14 ,  H04W16/00 ,  H04W24/02 ,  H04W74/04 ,  H04W74/08 ,  H04W88/08

Abstract: A method includes determining, by a first access point, a working mode of a second access point, where a coverage area of the first access point overlaps a coverage area of the second access point, and where the working mode includes a non-coordinated scheduling mode, a coordinated scheduling mode, a contention mode, or an in-slot contention ISC mode. The method further includes initiating, by the first access point, a working mode switching procedure when it is determined that the working mode of the second access point is the non-coordinated scheduling mode, where the working mode switching procedure is used to switch the working mode of the second access point to the contention mode or the ISC mode.

Abstract translation: 一种方法包括由第一接入点确定第二接入点的工作模式，其中第一接入点的覆盖区域与第二接入点的覆盖区域重叠，并且其中工作模式包括非协调调度 模式，协调调度模式，争用模式或者插入式争用ISC模式。 该方法还包括当确定第二接入点的工作模式是非协调调度模式时，由第一接入点启动工作模式切换过程，其中使用工作模式切换过程来切换工作 第二接入点的模式到争用模式或ISC模式。

公开(公告)号：US09185692B2

公开(公告)日：2015-11-10

申请号：US13689445

申请日：2012-11-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxin Zhang ,  Xun Yang ,  Tianyu Wu ,  Menghong Liu

IPC: H04W72/04 ,  H04L1/16 ,  H04W74/08 ,  H04B7/04 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04W72/14 ,  H04B7/0452 ,  H04L1/1614 ,  H04L1/1685 ,  H04L2001/0092 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/0833 ,  H04W84/12

Abstract: Embodiments of the present invention disclose a method and an apparatus for retrieving transmit opportunity control in reverse direction grant, so that a conflict occurring between a case where an RD Initiator continues sending another frame to an RD Responder after retrieving TXOP control and a case where a terminal other than the RD Initiator sends a block acknowledgement to the RD Responder can be avoided. The method provided in the embodiments of the present invention includes: when an RD Initiator fails to correctly demodulate a frame sent by an RD Responder, retrieving, by the RD Initiator, TXOP control by using a PIFS if it is impossible for the RD Responder to enable an MU-MIMO mode, and retrieving, by the RD Initiator, the TXOP control by using a duration if it is possible for the RD Responder to enable the MU-MIMO mode, where the duration is longer than the PIFS.

Abstract translation: 本发明的实施例公开了一种用于在反向授权中检索发送机会控制的方法和装置，使得在RD发起者在检索TXOP控制之后继续向RD响应者发送另一帧的情况之间发生冲突，以及在 除RD启动器之外的终端发送块确认给RD响应者可以避免。 本发明实施例中提供的方法包括：当RD启动器未能正确地解调由RD响应器发送的帧时，由RD启动器检索通过使用PIFS的TXOP控制，如果RD应答器不可能 启用MU-MIMO模式，并且如果RD响应器能够启用MU-MIMO模式（其持续时间长于PIFS），则RD启动器通过使用持续时间来检索TXOP控制。