公开(公告)号：US20160150565A1

公开(公告)日：2016-05-26

申请号：US15010576

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo LI ,  Qiao QU ,  Yunbo LI ,  Tianyu WU

IPC: H04W74/08 ,  H04L5/00

CPC classification number: H04W74/08 ,  H04L5/003 ,  H04L5/0037 ,  H04L5/006

Abstract: Embodiments of the present invention provide a method and a device for accessing a channel. The method includes: receiving a contention request frame transmitted by a first transmitting end device on M sub-carriers, where the M sub-carriers at least have two inconsecutive sub-carriers, and the contention request frame is modulated onto the M sub-carriers; according to the contention request frame, acquiring channel state information about the first transmitting end device respectively on the M sub-carriers, and determining channel state information about the first transmitting end device respectively on N sub-carriers, where the N sub-carriers are obtained by dividing all or a part of a system available frequency band, the N sub-carriers include the M sub-carriers, both N and M are positive integers, N>M and M>1; and performing allocation of a transmission sub-channel according to the channel state information about the first transmitting end device respectively on the N sub-carriers.

Abstract translation: 本发明的实施例提供一种用于访问信道的方法和设备。 该方法包括：在M个子载波上接收由第一发送端设备发送的竞争请求帧，其中M个子载波至少具有两个不连续的子载波，并且该争用请求帧被调制到M个子载波上 ; 根据争用请求帧，分别在M个子载波上获取关于第一发送终端装置的信道状态信息，分别在N个子载波上分别确定关于第一发送终端装置的信道状态信息 通过划分系统可用频带的全部或部分获得，N个子载波包括M个子载波，N和M都是正整数，N> M和M> 1; 以及分别在所述N个子载波上根据关于所述第一发送终端设备的信道状态信息分配发送子信道。

公开(公告)号：US20150382380A1

公开(公告)日：2015-12-31

申请号：US14843770

申请日：2015-09-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo LI ,  Tianyu WU ,  Lianbo ZHANG

IPC: H04W74/08 ,  H04W24/02 ,  H04W72/00 ,  H04W72/12

CPC classification number: H04W74/0825 ,  H04W24/02 ,  H04W72/005 ,  H04W72/1205 ,  H04W84/12

Abstract: Embodiments of the invention provide an OFDMA contention method and an access point. The OFDMA contention method includes: receiving, by an access point, a contention request frame transmitted by a station over a subchannel, and judging whether a sum of a number of stations succeeding in a contention in a current channel contention period and a number of stations succeeding in a historic contention is minor than a preset threshold; if yes, triggering the station to enter a next channel contention period, and repeatedly executing the steps of the receiving and the judging, until a number of stations succeeding in contentions is greater than or equal to the preset threshold. The OFDMA contention method and the access point can increase the number of the stations succeeding in contentions, thereby improving the throughput of an OFDMA system.

Abstract translation: 本发明的实施例提供OFDMA争用方法和接入点。 OFDMA争用方法包括：由接入点接收由子站通过子信道发送的竞争请求帧，并判断当前信道争用期间争用成功的站数和总站数之和 成功的历史性争论比预设的门槛小; 如果是，则触发站进入下一个信道争用期，并重复执行接收和判断步骤，直到成功进行争用的站数大于或等于预设阈值。 OFDMA争用方法和接入点可以增加争用成功的站数，从而提高OFDMA系统的吞吐量。

公开(公告)号：US20150103720A1

公开(公告)日：2015-04-16

申请号：US14573569

申请日：2014-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peter LOC ,  Xun YANG ,  Tianyu WU

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0222 ,  H04W52/0216 ,  H04W72/0413 ,  H04W74/002 ,  H04W74/04 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142

Abstract: Disclosed are methods and devices for data transmission in a wireless local area network. According to the embodiments of the present application, through transmitting by a terminal a first data frame to an access device, where the first data frame includes indication information and uplink data and the indication information is used to indicate a power save poll and uplink data transmission, the terminal can receive a second data frame which is transmitted by the access device according to the first data frame, where the second data frame includes response information of the power save poll indicated by the indication information. Since the first data frame carrying the uplink data indicates the power save poll simultaneously, downlink data from the access device can be inquired or requested at the same time of transmitting the uplink data, so that data transmission efficiency is improved.

Abstract translation: 公开了用于在无线局域网中进行数据传输的方法和装置。 根据本申请的实施例，通过终端向接入设备发送第一数据帧，其中第一数据帧包括指示信息和上行链路数据，并且指示信息用于指示省电轮询和上行链路数据传输 终端可以接收由接入设备根据第一数据帧发送的第二数据帧，其中第二数据帧包括由指示信息指示的省电轮询的响应信息。 由于携带上行链路数据的第一数据帧同时指示省电轮询，因此可以在发送上行链路数据的同时查询或请求来自接入设备的下行链路数据，从而提高数据传输效率。

公开(公告)号：US20130100909A1

公开(公告)日：2013-04-25

申请号：US13712322

申请日：2012-12-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingxin ZHANG ,  Xun YANG ,  Tianyu WU ,  Menghong LIU

IPC: H04W72/04

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, 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方向授权中检索传输机会控制的方法和装置，使得在检索TXOP控制之后RD启动器继续向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。