公开(公告)号：US10390355B2

公开(公告)日：2019-08-20

申请号：US15713247

申请日：2017-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Meilu Lin ,  Xun Yang ,  Jian Yu

IPC: H04W72/12 ,  H04W52/02 ,  H04W74/06 ,  H04W72/04 ,  H04W74/08

Abstract: An access point generates a beacon frame that carries a trigger frame information element comprising sending information of a trigger frame for indicating a sending period of the trigger frame; and sends the beacon frame. In this case, the station switches to an active state, and receives the trigger frame by listening to the channel, and the station performs uplink transmission according to indication of the trigger frame after receiving the trigger frame. In this way, when signaling overheads are not increased and reliability is ensured, a station can learn of a sending time of a trigger frame, and the station remains in a receiving state in an appropriate period of time.

公开(公告)号：US10342000B2

公开(公告)日：2019-07-02

申请号：US15441361

申请日：2017-02-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xun Yang ,  Rui Ni

IPC: H04W72/04 ,  H04W4/02 ,  H04W48/18 ,  H04W84/12 ,  H04W24/02

Abstract: Embodiments of this application provide a control information sending method and apparatus, where the method includes: obtaining a control information indication message from a first standard network, selecting a second standard network from one or more other networks that constitute a heterogeneous network with the first standard network, and sending the control information indication message to the second standard network, and then to a client over the second standard network. The control information indication message is used to instruct to substitutively send control information of the first standard network. According to the method and apparatus provided, the control information of the first standard network is substitutively sent over the second standard network, and sending the control information does not need to occupy bandwidth of the first standard network. Therefore, in comparison with the prior art, a network capacity of service data sent over the first standard network can be increased.

公开(公告)号：US10299200B2

公开(公告)日：2019-05-21

申请号：US15174752

申请日：2016-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yingpei Lin ,  Jiayin Zhang ,  Xun Yang

IPC: H04W48/20 ,  H04W40/24 ,  H04W84/12 ,  H04B17/318 ,  H04L5/00 ,  H04W24/02 ,  H04W72/12 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08

Abstract: Embodiments provide a method for accessing an access point by a station device, a device, and a system. A station device selects a master access point from multiple access points according to channel quality and accesses the master access point, and sends information about remaining access points to the master access point, so that the master access point selects a slave access point according to the information about the remaining access points. In this way, the master access point coordinates with the slave access point to perform data transmission with the station device.

公开(公告)号：US10264599B2

公开(公告)日：2019-04-16

申请号：US15249795

申请日：2016-08-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yingpei Lin ,  Xun Yang

IPC: H04W4/00 ,  H04W72/12 ,  H04W74/00 ,  H04W84/12

Abstract: A method comprises constructing, by an access point (AP), a radio frame within a scheduling window, the radio frame including at least a preamble part compatible with an existing IEEE 802.11 preamble legacy preamble, a preamble part used in a next-generation IEEE 802.11 standard (HEW preamble), and the first downlink subframe (DL subframe); sending the Legacy preamble, the HEW preamble and the first DL subframe in the radio frame; receiving at least one uplink subframe (UL subframe) located after the first DL subframe; wherein each of the at least one UL subframes is triggered by one DL subframe located before the UL subframe.

公开(公告)号：US20180159609A1

公开(公告)日：2018-06-07

申请号：US15860255

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Xun Yang ,  Ming Gan ,  Meilu Lin ,  Peter Loc

IPC: H04B7/06 ,  H04W24/00 ,  H04L1/00 ,  H04B7/0413

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04L1/0026 ,  H04L1/0073 ,  H04W24/00 ,  H04W24/10 ,  H04W84/12

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting channel state information. The method includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; receiving the channel state information sent by the target STAs by using the communication resource.

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：US09900780B2

公开(公告)日：2018-02-20

申请号：US14939812

申请日：2015-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanping Jiang ,  Xun Yang ,  Mu Zhao

IPC: H04W4/00 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W16/14 ,  H04W72/0426 ,  H04W74/0816 ,  H04W74/0825

Abstract: Embodiments of the present application provide an interference processing method and device. The method includes: a first access point (AP) receiving a frame sent by a second AP, the frame carrying downlink data load of the second AP, and intra-frequency interference existing between the first AP and the second AP; and the first AP adjusting, according to downlink data load of the first AP and the downlink data load of the second AP, a channel bandwidth used for performing data communication with a station (STA), so as to reduce the probability that the first AP and the second AP transmits data by using same channel. By using the method and the device for dynamically adjusting a bandwidth, intra-frequency interference of devices in OBSS can be reduced.

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：US20160359584A1

公开(公告)日：2016-12-08

申请号：US15244432

申请日：2016-08-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang

IPC: H04L1/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L1/0091 ,  H04L5/001 ,  H04L5/0094 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04W52/0216 ,  H04W52/0241 ,  H04W72/042 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: An information receiving and sending method and apparatus are provided, where the information receiving method includes: receiving, by a station (STA) in a transmit opportunity (TXOP) phase, orthogonal frequency division multiple access (OFDMA) data that is from a wireless access point (AP), where some data frames in the OFDMA data carry a legacy physical-layer preamble; and in a process of receiving the OFDMA data, working, by the STA, in an OFDMA receiving mode when receiving a data frame that does not carry the legacy physical-layer preamble, determining, by the STA according to a preset rule, a data frame that carries the legacy physical-layer preamble, and switching from the OFDMA receiving mode to an orthogonal frequency division multiplexing (OFDM) receiving mode to receive the data frame that carries the legacy physical-layer preamble.

Abstract translation: 提供一种信息接收和发送方法和装置，其中信息接收方法包括：通过发送机会（TXOP）阶段中的站（STA）从无线接入的正交频分多址（OFDMA）数据接收 点（AP），其中OFDMA数据中的一些数据帧携带遗留物理层前导码; 并且在接收到OFDMA数据的过程中，当STA接收到不携带传统物理层前同步码的数据帧时，由STA以OFDMA接收模式工作，由STA根据预设规则确定数据 携带传统物理层前导码的帧，并且从OFDMA接收模式切换到正交频分复用（OFDM）接收模式，以接收携带传统物理层前同步码的数据帧。

公开(公告)号：US20160127078A1

公开(公告)日：2016-05-05

申请号：US14994657

申请日：2016-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lvxi Yang ,  Hao Li ,  Xun Yang

IPC: H04L1/00 ,  H04L1/06

CPC classification number: H04L1/0009 ,  H04L1/0025 ,  H04L1/0643 ,  H04W24/08

Abstract: Embodiments of the present invention provide a link adaptation feedback method and a transmitting device. The method includes: receiving, by a transmitting device, a link adaptation feedback frame sent by a receiving device, where the link adaptation feedback frame carries space-time block coding type indication information; and determining, by the transmitting device according to the space-time block coding type indication information, information about use of space-time block coding by a data frame related to the link adaptation feedback frame. Through the embodiments of the present invention, and according to the use information, the transmitting device may select the space-time stream, and the MCS used when the transmitting device sends a data frame, thereby improving link performance.

Abstract translation: 本发明的实施例提供一种链路自适应反馈方法和发送装置。 该方法包括：由发送设备接收由接收设备发送的链路自适应反馈帧，其中链路自适应反馈帧携带空时块编码类型指示信息; 以及根据所述空时块编码类型指示信息，由所述发送装置确定与所述链路适配反馈帧相关的数据帧使用空时块编码的信息。 通过本发明的实施例，并且根据使用信息，发送装置可以选择时空流，以及当发送装置发送数据帧时使用的MCS，从而提高链路性能。