公开(公告)号：EP2782413A4

公开(公告)日：2014-12-31

申请号：EP12859071

申请日：2012-12-14

申请人： HUAWEI TECH CO LTD

发明人： YANG XUN ,  YANG LVXI ,  SONG KANG ,  HUANG YONGMING ,  LI CHUNGUO

IPC分类号： H04W74/00 ,  H04L29/06 ,  H04W28/06

CPC分类号： H04W74/004 ,  H04L29/0604 ,  H04L69/04 ,  H04W28/06 ,  H04W48/12 ,  H04W74/006

公开(公告)号：EP2945309A4

公开(公告)日：2016-01-13

申请号：EP13883690

申请日：2013-11-15

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  WANG PENG ,  WANG FANG ,  YANG XUN

IPC分类号： H04W74/08

CPC分类号： H04W74/0816 ,  H04W72/0446

摘要： Embodiments of the present invention provide a method, a device and a system for transmitting data, which relate to the field of network technology. A station sends a request-to-send frame to an access point to obtain a channel, and at the same time, the access point actively sends a middle-clear-to-send frame, so as to indicate which stations can send data, thereby reducing the time overhead in the data transmission process, improving the flexibility of the system, and avoiding system errors. Specifically, the method includes: an access point AP receives a request-to-send RTS frame sent by a station STA; sends a middle-clear-to-send MCTS frame to a scheduled STA; receives an F frame sent by the scheduled STA according to the MCTS frame; sends a final-clear-to-send FCTS frame to another scheduled STA; and receives data sent by the another scheduled STA according to the FCTS frame. The present invention is applied to data transmission.

公开(公告)号：EP2680478A4

公开(公告)日：2014-02-19

申请号：EP11862737

申请日：2011-11-14

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  JI BAOFENG ,  HUANG YONGMING ,  LI YUNBO

IPC分类号： H04L1/16 ,  H04L1/00

CPC分类号： H04L1/0026 ,  H04L1/1614 ,  H04L1/1671

公开(公告)号：EP2797290A4

公开(公告)日：2015-04-08

申请号：EP12860002

申请日：2012-12-14

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  ZHOU ZIQUAN ,  WANG SHIYU ,  LI YUNBO

IPC分类号： H04L29/08 ,  H04L29/06 ,  H04L29/12 ,  H04W28/06 ,  H04W80/02 ,  H04W84/12

CPC分类号： H04L45/74 ,  H04L61/6022 ,  H04L69/04 ,  H04L69/22 ,  H04L69/324 ,  H04W28/06

摘要： The embodiments of the present invention provide an encoding mode for a traffic indication map and a beacon frame, relating to communications, such that a user is aware of whether there is data cached in an access point or a user terminal is aware of whether to access a channel, thus number of bytes occupied by a traffic indication map in a beacon frame is reduced. The encoding mode for a traffic indication map provided by the present embodiment comprises: controlling whether to display a divided block bitmap display field in a sub-bitmap by marking at least one bit in a bitmap control field, wherein a divided block sub-bitmap in a sub-bitmap is used for enabling a user terminal to know whether there is data cached in an access point, or enabling a user terminal to know whether to access a channel.

公开(公告)号：EP2809110A4

公开(公告)日：2014-12-10

申请号：EP13751559

申请日：2013-02-25

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  SUN YUAN ,  YANG XUN

IPC分类号： H04W52/02 ,  H04W84/12

CPC分类号： H04W74/06 ,  H04W52/0216 ,  H04W52/0235 ,  Y02B60/50 ,  Y02D70/00 ,  Y02D70/142

摘要： Embodiments of the present invention provide a data transmission method, an access point, and a station. The method includes: sending an indication frame to an access point AP, where the indication frame includes first indication information and second indication information, the first indication information is used to indicate that a type of the indication frame is a PS-POLL frame, and the second indication information is used to indicate duration of the indication frame; and sending a data frame to the AP within the duration indicated by the second indication information. According to the embodiments of the present invention, an STA sends PS-POLL to an AP by using an indication frame and reserves channel duration, so that the STA does not need to contend for a channel again when the STA sends an uplink data frame to the AP after receiving a downlink data frame sent by the AP, which allows the STA to receive downlink data and send uplink data within one TXOP, thereby reducing resources consumed when the STA contends for a channel and improving an energy utilization rate of the STA.

公开(公告)号：EP2706792A4

公开(公告)日：2014-08-20

申请号：EP12792370

申请日：2012-03-23

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  CHEN YANHONG ,  LI YUNBO

IPC分类号： H04W52/02

CPC分类号： H04W52/0235 ,  H04W52/0216 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142

摘要： Embodiments of the present invention provide a power save method and a station device. The method includes: confirming, by a STA, according to a frame type identifier in a received frame, that the frame is an NDPA frame, and obtaining a STA AID in a STA information field in the NDPA frame; comparing, by the STA, its STA AID with the obtained STA AID, and determining whether its STA AID is the same as the obtained STA AID; and when the STA determines that its STA AID is different from the obtained STA AID, allowing the STA to enter a doze state. Embodiments of the present invention can reduce the power consumption during the TXOP period and save resources.

公开(公告)号：EP2846585A4

公开(公告)日：2015-09-09

申请号：EP13797659

申请日：2013-03-27

申请人： HUAWEI TECH CO LTD

发明人： ZHOU ZIQUAN ,  YANG XUN ,  YANG LVXI

IPC分类号： H04L12/721

CPC分类号： H04W40/22 ,  H04B7/155 ,  H04W4/06 ,  H04W40/10 ,  H04W74/0816 ,  H04W88/04 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/326 ,  Y02D70/39 ,  Y02D70/446

摘要： Embodiments of the present invention provide a data sending method of a terminal, including: sending a data frame to a relay, where the data frame includes a relay information bit, the relay information bit is used for identifying whether the relay needs to forward the data frame, and if the relay information bit indicates that the relay needs to forward the data frame, the data frame is forwarded to an access point by the relay; and receiving a response message of the access point, where the response message is used for indicating that the data frame is correctly received by the access point. By using a data sending method, a data forwarding method and devices according to the embodiments of the present invention, an information exchange method of a terminal and an access point in a case in which the terminal has limited power is provided, so that data sent by the terminal that has limited power arrives at the access point.

公开(公告)号：EP2706802A4

公开(公告)日：2014-04-30

申请号：EP12793007

申请日：2012-03-26

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  LI HAO ,  LI CHUNGUO ,  WU TIANYU

IPC分类号： H04W72/04

CPC分类号： H04W72/1263 ,  H04W72/1268 ,  H04W84/12

摘要： 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：EP2690904A4

公开(公告)日：2014-04-02

申请号：EP12776859

申请日：2012-04-25

申请人： HUAWEI TECH CO LTD

发明人： YANG LVXI ,  LI HAO ,  LI CHUNGUO ,  WU TIANYU

IPC分类号： H04W74/08 ,  H04W28/20

CPC分类号： H04L5/0073 ,  H04B7/024 ,  H04L5/0023 ,  H04W28/20 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/442

摘要： Embodiments of the present invention provide a method for data sending in a multi-user multiple-input multiple-output MIMO system. The method includes: sending an RTS to a primary user on at least two bandwidths; receiving a CTS that is sent by the primary user on each bandwidth, where the CTS is a response of the primary user to the RTS; sending an RTS to a secondary user on a bandwidth on which the CTS sent by the primary user is received; receiving a CTS sent by the secondary user, where the CTS is a response of the secondary user to the RTS; and sending data to the primary user and the secondary user on the bandwidth on which the CTS sent by the primary user is received and a bandwidth on which the CTS sent by the secondary user is received. The bandwidth on which the RTS is sent to the secondary user in this solution may be dynamically adjusted according to an available bandwidth of the primary user, so that sending of unnecessary RTSs on some secondary channels is avoided and send power of an AP and send power of a user are saved.

摘要翻译： 。本发明的实施例提供用于数据在多用户多输入多输出MIMO系统的方法，包括：发送方法，包括：发送RTS为对至少两个带宽主用户; 接收CTS并通过在每一个带宽，其中，所述CTS是主用户到RTS的响应主要用户发送; 发送RTS到在其上由所述主用户发送的CTS被接收的带宽的次级用户; 接收由所述次要用户，其中，所述CTS为次要用户到RTS的响应发送的CTS; 和将数据发送到主用户和在其上由所述主用户发送接收到CTS带宽次要用户和其上由辅助用户发送接收到CTS的带宽。 在其上RTS发送到次级用户在该溶液中的带宽可被动态地调整雅丁向主用户的可用带宽，所以没有对一些次要信道发送不必要的转运站的避免和AP的发射功率和发射功率 用户的保存。