WO2012163157A1 - 无线局域网中逆向协议传输的方法及装置 - Google Patents

无线局域网中逆向协议传输的方法及装置 Download PDF

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Publication number
WO2012163157A1
WO2012163157A1 PCT/CN2012/072999 CN2012072999W WO2012163157A1 WO 2012163157 A1 WO2012163157 A1 WO 2012163157A1 CN 2012072999 W CN2012072999 W CN 2012072999W WO 2012163157 A1 WO2012163157 A1 WO 2012163157A1
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Prior art keywords
txop
station
data
access point
transmission opportunity
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PCT/CN2012/072999
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English (en)
French (fr)
Inventor
杨绿溪
李�浩
李春国
伍天宇
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020137032764A priority Critical patent/KR101540372B1/ko
Priority to EP12793007.1A priority patent/EP2706802B1/en
Priority to ES12793007.1T priority patent/ES2573812T3/es
Priority to BR112013033147-0A priority patent/BR112013033147B1/pt
Priority to AU2012265443A priority patent/AU2012265443B2/en
Priority to RU2014102413/07A priority patent/RU2547137C1/ru
Publication of WO2012163157A1 publication Critical patent/WO2012163157A1/zh
Priority to US14/095,006 priority patent/US9655136B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a method and apparatus for protocol transmission in a wireless local area network. Background technique
  • a mechanism for supporting a transmission opportunity (TXOP) in a wireless local area network can reserve a period of time when a station (STA, station) obtains a transmission opportunity, and one or more data frames can be continuously transmitted during this time.
  • the site that gets the transmission opportunity is called the TXOP holder.
  • the station at the receiving end of the data transmitted by the non-transportation opportunity holder sets a NAV (network allocation vector) to ensure that it does not initiate a competition within the reserved time range of the transmission opportunity holder.
  • NAV network allocation vector
  • a wireless local area network usually has a problem that the uplink and downlink data traffic is asymmetric, that is, the amount of data in one link direction is much larger than the data amount in another link direction.
  • the current standard supports a reverse direction protocol (RD) mechanism, which means that when a station (assuming STA-a) competes for a certain length of time (TXOP), if this After the station has sent the remaining time to the data of another station (assuming STA-b), the channel usage right can be granted to STA-b, and STA-b uses the remaining TXOP time to send data to STA-a, and the transmission ends. The transmission opportunity is returned to STA-a.
  • RD reverse direction protocol
  • STA-a is called the reverse protocol RD initiator
  • STA-b is called the reverse protocol RD response.
  • MU-MIMO Multi-Users Multi-input and Multi-output
  • the MU-MIM0 technology mainly utilizes the orthogonality of channels between users, improves channel utilization efficiency, and improves system throughput.
  • the current reverse protocol mechanism cannot transmit MU-MIMO data, thus limiting the ability to transmit MU-MIMO data, reducing channel utilization efficiency, and not conducive to improving system throughput. Summary of the invention
  • the embodiments of the present invention provide a method for transmitting multi-user data (MU-MIMO) in a reverse protocol, so that channel utilization can be further improved when there is a situation in which the uplink and downlink data traffic is asymmetric.
  • MU-MIMO multi-user data
  • the AP obtains the TXOP, where the AP obtains the TXOP through The first station is obtained as a reverse protocol initiator to grant the remaining part of the TXOP to the access point AP;
  • an embodiment of the present invention further provides a wireless access point, including:
  • a TXOP obtaining unit configured to: in a transmission opportunity TXOP of the first station, obtain the TXOP if the first station completes sending data to the access point AP, and the TXOP is obtained, where the AP obtains the The TXOP is obtained by the first station as a reverse protocol initiator granting the remaining part of the TXOP to the access point AP;
  • FIG. 1 is a flow chart of a method for transmitting multi-user data in a reverse protocol according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a transmission multi-user data transmission time slot in a reverse protocol according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention. detailed description
  • each access point AP or terminal STA performs channel competition, and the AP or STA that competes for the channel is the TXOP holder, and the non-TXOP holder if there is no competition to the channel.
  • Embodiments of the present invention combine a reverse protocol of a wireless local area network (MAC) layer with MU-MIMO to improve channel utilization efficiency.
  • MAC wireless local area network
  • the first station STA obtains a transmission opportunity (TXOP). After the STA transmits data to the AP, the STA1 acts as a reverse protocol initiator to grant the opportunity of the TXOP to the access point AP.
  • TXOP transmission opportunity
  • a method for transmitting multi-user data (MU-MIMO) in a reverse protocol includes:
  • TXOP transmission opportunity
  • the first data can be considered as all data that the first station needs to send to the AP within the TXOP.
  • the TXOP still does not end, and the transmission opportunity of the TXOP is transferred to the AP.
  • the RDG/More PPDU bit is set to 1 in the last frame, indicating that the remaining TXOP is granted to the transmission pair.
  • the AP in the TXOP sends second data to at least two sites, where the at least two sites include the first site.
  • the user group When the AP selects a group of multiple users to send the second data, the user group must include the first site. When the user group multiplexing technology is applied in the selected user group, the first site must be included in the selected user group multiplexing mode.
  • the AP sends data to multiple users. After receiving the multi-user data, the target station of the AP sends the response information of the received data to the AP, and the access point receives the response information after receiving the second data by the first station, and the target station may not send the response information. , AP ensures that the data is sent successfully.
  • the TXOP of the STA is transferred to the AP in the uplink TXOP time by using the reverse protocol, so that the multi-user transmission capability of the AP can also be used to transmit data to multiple sites, thereby improving channel utilization efficiency and expanding the reverse protocol.
  • Flexibility provides a new method for resolving the contradiction between uplink and downlink traffic, which in turn improves the overall throughput of the system.
  • FIG. 2 a schematic diagram of a transmission slot is shown. Another embodiment of the present invention is described.
  • the user first station STA1 obtains a TXOP and sends data to the AP. After the first station STA1 needs to send all the data sent to the AP, the user first station STA1 grants the channel to the AP, and then all the opportunities of the TXOP are transferred to the AP.
  • the AP can use the channel usage right to simultaneously send data to multiple users (such as STA1 and STA2).
  • the data transmitted by the AP needs to include data to the first station STA1. That is, the AP as the corresponding end of the reverse protocol must send data to the protocol initiator.
  • the channel usage right needs to be returned to the reverse protocol originating site first station (STA1).
  • the way to return the channel usage right is to finally send a response request (BAR) signal to STA1.
  • the more physical layer data unit RDG/More PPDU bit position in the response request is 0, indicating that no more data is to be sent, and STA1 receives the response request signal.
  • the response response signal reclaims the channel usage right.
  • the AP must confirm that all destination STAs except STA1 have sent a frame to be replied to the AP, such as ACK or block acknowledgement BA frame, before returning the TXOP usage right.
  • the remaining part of the TXOP can be returned to the first station STA1, and the TXOP is fully utilized, thereby further improving the channel utilization and improving the system throughput.
  • the embodiment of the present invention further provides an apparatus for performing the foregoing method, where the specific application may be an AP of a wireless local area network, or an STA. It is generally believed that an AP is a wireless LAN.
  • the AP has physical or logical modules that perform all of the above functions and processes.
  • the access point 30 includes: a TXOP obtaining unit 301, configured to: in a transmission opportunity TXOP of the first station, if the first station completes sending data to the access point AP, and the TXOP is not ended, obtaining the
  • the obtaining, by the AP, the TXOP is obtained by the first station as a reverse protocol initiator to grant the remaining part of the TXOP to the access point AP;
  • the sending unit 303 is configured to send, in the TXOP, the second data to the at least two sites, where the at least two sites include the first site. Further, if the AP sends the second data in the TXOP,
  • the TXOP is still not finished, and the sending unit may further send a response request BAR to the first station, and the response request is used to return the holding opportunity of the TXOP to the first station.
  • One implementation may be to include more physical layer data unit more PPDU bits in the response request, and the more PPDU bit is set to zero.
  • the TXOP may not be retrieved according to the condition of the channel idle PIFS time.
  • the access point provided by the embodiment of the present invention transfers the TXOP of the STA to the AP in the uplink TXOP time by using the reverse protocol, so that the multi-user transmission capability of the AP can also be used to transmit data to multiple sites, thereby improving channel utilization efficiency and expanding
  • the flexibility of the reverse protocol provides a new method for resolving the contradiction between the uplink and downlink service traffic, thereby improving the overall throughput of the system.
  • a person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例涉及通信技术，尤其涉及无线局域网中协议传输的方法及装置。本发明实施例的一种逆向协议中传输多用户数据的方法，包括：在第一站点的一个传输机会TXOP内，如果所述第一站点完成向接入点AP发送数据之后所述TXOP未结束，所述AP获得所述TXOP，其中所述AP获得所述TXOP是通过第一站点作为逆向协议发起者将该TXOP的剩余部分授予接入点AP而获得；在所述TXOP内所述AP向至少二个站点发送第二数据，所述至少二个站点中包括所述第一站点。

Description

无线局域网中逆向协议传输的方法及装置 技术领域
本发明实施例涉及通信技术， 尤其涉及无线局域网中协议传输的方法 及装置。 背景技术
目前无线局域网中支持传输机会 ( TXOP, transmission opportunity )的机 制， 当站点 （STA, station )获得传输机会的时候可以预留一段时间， 在此 时间内可以连续传输一个或多个数据帧。获得传输机会的站点叫做传输机会 持有者（TXOP holder ) 。 非传输机会持有者所发送数据的接收端的站点会 设置一个 NAV(network allocation vector, 网络分配向量），用以保证其在传输 机会持有者预留时间范围内不发起竟争。
而具体应用中无线局域网通常存在着上下行数据业务量不对称的问题， 即一个链路方向的数据量远大于另一个链路方向的数据量。 为解决此问题现 行标准中支持一种逆向协议（ reverse direction protocol, RD ) 的机制, 指的 是当一个站点 （假设 STA-a ) 竟争到一定时间长度的传输机会（TXOP ) 以 后,如果此站点在发送完给另一个站点（假设 STA-b )的数据以后还有剩余时 间， 就可以将信道使用权授予 STA-b, STA-b利用剩余的 TXOP时间发送数 据给 STA-a, 发送结束后将传输机会还给 STA-a。 STA-a称为逆向协议 RD 发起端， STA-b称为逆向协议 RD响应端。 随着技术的发展引进了多用户传输（Multi-Users Multi-input and Multi-output, MU-MIMO)技术， 即站点在同一时间， 同一频段给 2个或 2个 以上的站点发送数据。 MU-MIM0技术主要利用了用户之间信道的正交性， 提高了信道利用效率， 提升了系统吞吐量。 然而当前的逆向协议机制不能传 送 MU-MIMO数据， 因此限制了 ΑΡ发送 MU-MIMO数据的能力， 降低了 信道利用效率， 不利于提高系统吞吐量。 发明内容
发明实施例提供一种在逆向协议中传输多用户数据 ( MU-MIMO ) 的方 法，使得在网络存在着上下行数据业务量不对称的情况时能够进一步提高信 道利用率。
本发明实施例的逆向协议中传输多用户数据的方法， 包括：
在第一站点的一个传输机会 TXOP内，如果所述第一站点完成向接入点 AP发送数据之后所述 TXOP未结束， 所述 AP获得所述 TXOP, 其中所述 AP获得所述 TXOP是通过所述第一站点作为逆向协议发起者将该 TXOP的 剩余部分授予所述接入点 AP而获得；
在所述 TXOP内所述 AP向至少二个站点发送第二数据， 所述至少二个 站点中包括所述第一站点。
进一步， 本发明实施例还提供了一种无线接入点， 包括：
TXOP获得单元， 用于在第一站点的一个传输机会 TXOP内， 如果所述 第一站点完成向接入点 AP发送数据之后所述 TXOP 未结束， 获得所述 TXOP, 其中所述 AP获得所述 TXOP是通过所述第一站点作为逆向协议发 起者将该 TXOP的剩余部分授予接入点 AP而获得；
发送单元， 用于在所述 TXOP内向至少二个站点发送第二数据， 所述至 少二个站点中包括所述第一站点。 本发明实施例通过逆向协议在上行 TXOP时间内将 STA的 TXOP转移 到 AP, 使得也可以利用 AP的多用户传输能力， 向多个站点发送数据， 提 高了信道利用效率， 扩大了逆向协议的灵活性， 对解决上下行链路业务流量 不对等的矛盾提供了新的方法， 进而提升系统整体吞吐量。 附图说明 图 1为本发明实施例逆向协议中传输多用户数据的方法流程图。
图 2为本发明实施例逆向协议中传输多用户数据发送时隙示意图。 图 3为本发明实施例无线通信设备的结构示意图。 具体实施方式
在一个无线局域网中， 各接入点 AP或者终端 STA进行信道竟争， 竟争 到信道的 AP或者 STA则为 TXOP持有者，则没有竟争到信道的则为非 TXOP 持有者。本发明实施例将无线局域网 MAC层的逆向协议与 MU-MIMO相结 合以提高信道利用效率。
本实施例中第一站点 STA ( STA1 )获得传输机会（TXOP ) , 在这个传输机 会中 STA向 AP的数据发送完成后， STA1作为逆向协议发起者将该 TXOP 的机会授予接入点 AP。
参阅图 1 , 本发明实施例的方法流程图， 一种逆向协议中传输多用户数 据（MU-MIMO ) 的方法包括：
S101 , 在第一站点的一个传输机会 TXOP内， 如果所述第一站点完成向 接入点 AP发送数据之后所述 TXOP未结束， 所述第一站点作为逆向协议发 起者将该 TXOP的剩余部分授予所述接入点 AP。
在本步骤中， 第一数据可以认为是在该 TXOP内第一站点需要向 AP发 送的所有数据。 在第一站点完成数据发送之后， TXOP仍然没有结束， 则将 该 TXOP的发送机会转移到 AP。 当第一站点 STA1传输结束时， 会在最后 一帧把 RDG/More PPDU 比特设置为 1 , 表示将剩下的 TXOP授权给传输对
S103, 所述 TXOP内所述 AP向至少二个站点发送第二数据， 所述至少 二个站点中包括所述第一站点。
在所述 AP选择一组多用户发送第二数据时， 所述用户组必须包含所述 第一站点。 当选择的用户组中应用了用户组复用技术时， 选择的用户组复用 模式中必须包含所述第一站点。 应用中， 这个步骤 AP获得了 TXOP之后， 向多个用户发送数据。 进一步 AP的目标站点收到多用户数据后向 AP发送接收到数据的应答 信息， 接入点接收所述第一站点接收到所述第二数据后的应答信息， 目标站 点也可以不发送应答信息， AP保证数据发送成功即可。
本发明实施例通过通过逆向协议在上行 TXOP时间内将 STA的 TXOP 转移到 AP, 使得也可以利用 AP的多用户传输能力， 向多个站点发送数据， 提高了信道利用效率， 扩大了逆向协议的灵活性， 对解决上下行链路业务流 量不对等的矛盾提供了新的方法， 进而提升系统整体吞吐量。
进一步， 结合图 2, 发送时隙示意图。 介绍本发明又一实施例。
用户第一站点 STA1 ,获得 TXOP,向 AP发送数据。如果第一站点 STA1 需要向 AP发送的数据全部发送完成后， 用户第一站点 STA1将信道授予给 AP后， 即将 TXOP的所有机会转移给 AP。
用户第一站点 STA1将信道（传输机会 )授予给 AP以后， AP可以利用 信道使用权同时给多用户（例如 STA1和 STA2)发送数据。 此处， AP发送的 数据需要包括向第一站点 STA1的数据。 即 AP作为逆向协议的相应端必须 向协议发起端发送数据。
进一步， AP发送多用户数据结束后， 如果整个 TXOP还没结束， 还需 要将信道使用权还给逆向协议发起站点第一站点 (STA1)。 归还信道使用权的 方式是最后给 STA1发送应答请求 (BAR)信号， 应答请求中更多物理层数据 单元 RDG/More PPDU比特位置为 0指示没有更多的数据要发， STA1收到 应答请求信号后回应应答信号收回信道使用权。 作为一个较优的实现方式 AP在归还 TXOP使用权之前必须确认除了 STA1之外所有目的 STA都已经 向 AP发送了应回复的帧例如 ACK或者块确认 BA帧等。
进一步上述实施例可以将 TXOP的剩余部分再归还第一站点 STA1 , 更 充分的利用了 TXOP, 又进一步提高了信道的利用率， 提升了系统吞吐量。
同时本发明实施例还提供完成上述方法的装置， 具体的应用中可以是一 个无线局域网的 AP, 或者 STA。 一般认为在一个无线局域网中 AP是一个 AP具有完成上述所有功能与流程的物理或者逻辑模块。
参阅图 3, 本发明实施例无线通信设备的结构示意图。 接入点 30包括： TXOP获得单元 301 , 用于在第一站点的一个传输机会 TXOP内， 如果 所述第一站点完成向接入点 AP发送数据之后所述 TXOP未结束， 获得所述
TXOP, 其中所述 AP获得所述 TXOP是通过所述第一站点作为逆向协议发 起者将该 TXOP的剩余部分授予所述接入点 AP而获得；
发送单元 303, 用于在所述 TXOP内向至少二个站点发送第二数据， 所 述至少二个站点中包括所述第一站点。 进一步， 如果所述 AP在所述 TXOP 内发送完所述第二数据之后所述
TXOP仍未结束，发送单元还可以向所述第一站点发送应答请求 BAR, 所述 应答请求用于将所述 TXOP的持有机会交还给所述第一站点。一种实现可以 是应答请求中包括更多物理层数据单元 more PPDU比特，并且该 more PPDU 比特设置为 0。在本实施例中可以不根据信道空闲 PIFS时间的条件取回所述 TXOP。
本发明实施例提供的接入点通过逆向协议在上行 TXOP时间内将 STA 的 TXOP转移到 AP, 使得也可以利用 AP的多用户传输能力， 向多个站点 发送数据， 提高了信道利用效率， 扩大了逆向协议的灵活性， 对解决上下行 链路业务流量不对等的矛盾提供了新的方法， 进而提升系统整体吞吐量。 本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的 介质。

Claims

权利要求
1、 一种逆向协议中传输多用户数据的方法， 其特征在于， 所述方法包 括：
在第一站点的一个传输机会 TXOP内，如果所述第一站点完成向接入点 AP发送数据之后所述 TXOP未结束， 所述 AP获得所述 TXOP, 其中所述 AP获得所述 TXOP是通过所述第一站点作为逆向协议发起者将该 TXOP的 剩余部分授予所述接入点 AP而获得；
在所述 TXOP内所述 AP向至少二个站点发送第二数据， 所述至少二个 站点中包括所述第一站点。
2、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 如果所述 AP向至少二个站点发送第二数据发送结束后所述 TXOP仍未 结束， 所述 AP将所述 TXOP的发送机会交还给所述第一站点。
3、 根据权利要求 1或 2所述的方法， 其特征在于， 所述方法还包括： 如果所述 AP在所述 TXOP内发送完所述第二数据之后所述 TXOP仍未 结束， 所述 AP向所述第一站点发送应答请求 BAR, 所述应答请求用于所述 AP将所述 TXOP的发送机会交还给所述第一站点。
4、根据权利要求 2或 3所述的方法， 其特征在于， 在所述 AP接收到所 述至少二个站点中所述第一站点之外的所有需要发送 ACK或块确认帧 BA 给 AP的站点发送的所有 ACK或块确认帧 BA反馈之后， 所述 AP将所述 TXOP的发送机会交还给所述第一站点。
5、 根据权利要求 3或 4所述的方法， 其特征在于， 所述应答请求中包 括更多物理层数据单元 more PPDU比特， 并且该 more PPDU比特设置为 0。
6、 一种无线接入点设备， 其特征在于， 所述接入点设备包括：
TXOP获得单元， 用于在第一站点的一个传输机会 TXOP内， 如果所述 第一站点完成向接入点 AP发送数据之后所述 TXOP 未结束， 获得所述 TXOP, 其中所述 AP获得所述 TXOP是通过所述第一站点作为逆向协议发 起者将该 TXOP的剩余部分授予所述接入点 AP而获得；
发送单元， 用于在所述 TXOP内向至少二个站点发送第二数据， 所述至 少二个站点中包括所述第一站点。
7、 根据权利要求 6所述的接入点设备， 其特征在于， 所述发送单元还 用于如果所述 AP在所述 TXOP内发送完所述第二数据之后所述 TXOP仍未 结束， 向所述第一站点发送应答请求 BAR, 所述应答请求用于将所述 TXOP 的发送机会交还给所述第一站点。
8、 根据权利要求 7所述的接入点设备， 其特征在于， 所述发送单元发 送的所述应答请求中包括更多物理层数据单元 more PPDU比特，并且该 more PPDU比特设置为 0。
PCT/CN2012/072999 2011-06-25 2012-03-26 无线局域网中逆向协议传输的方法及装置 WO2012163157A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11425709B2 (en) 2014-02-11 2022-08-23 Huawei Technologies Co., Ltd. Data transmission processing method and apparatus

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015127616A1 (zh) 2014-02-27 2015-09-03 华为技术有限公司 无线局域网数据的传输方法及装置
US20170141842A1 (en) * 2014-03-29 2017-05-18 Intel IP Corporation Methods and arrangements for power efficient reverse direction communications
EP4080801A3 (en) * 2014-09-29 2022-12-07 INTEL Corporation Wireless device, method, and computer readable media for requesting and sending block acknowledgement
US10091813B2 (en) 2014-12-02 2018-10-02 Mediatek Inc. STA initiated uplink aggregation in wireless communication systems
CN106304390A (zh) * 2015-06-05 2017-01-04 中兴通讯股份有限公司 一种信道接入方法、站点和系统
JP6474904B2 (ja) * 2015-08-21 2019-02-27 日本電信電話株式会社 無線通信システムおよび無線通信方法
EP4247110A3 (en) 2015-08-21 2023-11-22 Nippon Telegraph And Telephone Corporation Radio communication system and radio communication method
CN106851848B (zh) 2015-12-07 2020-06-16 华为技术有限公司 一种并行传输数据的方法及装置
US10342047B2 (en) * 2016-07-18 2019-07-02 Intel IP Corporation Reverse direction for multi-user multiple input multiple output communications
GB2555142B (en) * 2016-10-21 2019-09-04 Canon Kk Enhanced management of ACs in multi-user EDCA transmission mode in wireless networks
US10264526B2 (en) * 2017-06-07 2019-04-16 Mediatek Singapore Pte. Ltd. Adaptive TIM setup policy for client devices in power-save mode in dense environment
CN109587052B (zh) * 2019-01-30 2022-03-15 展讯通信（上海）有限公司 一种多链路数据传输方法及装置
US11109395B2 (en) * 2019-02-28 2021-08-31 Huawei Technologies Co., Ltd. Data transmission preemption
US10945287B2 (en) 2019-03-29 2021-03-09 Qualcomm Incorporated Uplink (UL) to downlink (DL) channel occupancy time (COT) sharing with scheduled UL in new radio-unlicensed (NR-U)
US11856606B2 (en) 2020-12-01 2023-12-26 Sony Group Corporation Coordinated stations in OBSS with shared TXOP in time domain
WO2022118136A1 (en) * 2020-12-01 2022-06-09 Sony Group Corporation Coordinated stations in obss with shared txop in time domain
CN116193621B (zh) * 2021-01-15 2024-01-30 华为技术有限公司 传输机会的使用权恢复方法及相关装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101366241A (zh) * 2006-01-04 2009-02-11 美商内数位科技公司 在wlan系统中用于提供多模式的高效操作的方法和系统
CN101433022A (zh) * 2006-04-24 2009-05-13 交互数字技术公司 用于无线网格网络中的传输时机使用的方法和信令过程
WO2010128608A1 (ja) * 2009-05-08 2010-11-11 ソニー株式会社 通信装置及び通信方法、コンピューター・プログラム、並びに通信システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060121237A (ko) * 2003-12-22 2006-11-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 라우터 기능성을 자동으로 전송하는 방법
US7512096B2 (en) * 2004-11-24 2009-03-31 Alcatel-Lucent Usa Inc. Communicating data between an access point and multiple wireless devices over a link
US7639658B2 (en) 2005-03-18 2009-12-29 Qualcomm Incorporated Efficient wireless transmission opportunity handoff
US8600336B2 (en) * 2005-09-12 2013-12-03 Qualcomm Incorporated Scheduling with reverse direction grant in wireless communication systems
US8014818B2 (en) 2006-01-04 2011-09-06 Interdigital Technology Corporation Methods and systems for providing efficient operation of multiple modes in a WLAN system
US8374192B2 (en) 2006-10-19 2013-02-12 Qualcomm Incorporated Power save enhancements for wireless communication
US9450711B2 (en) * 2008-04-02 2016-09-20 Qualcomm Incorporated Method and apparatus for extended reverse direction grant in a wireless local area network (WLAN)
US9203560B2 (en) * 2008-04-04 2015-12-01 Qualcomm Incorporated Methods and apparatus for delayed block acknowledgement in a wireless local area network (WLAN)
US20100040033A1 (en) * 2008-08-14 2010-02-18 Texas Instruments Incorporated Reverse direction grant (rdg) for wireless network technologies subject to coexistence interference
JP5779585B2 (ja) * 2009-11-13 2015-09-16 インターデイジタル パテント ホールディングス インコーポレイテッド 無線通信における制御シグナリング
KR101760073B1 (ko) 2010-02-10 2017-07-20 마벨 월드 트레이드 리미티드 무선 통신들을 위한 송신 보호
KR101778958B1 (ko) * 2010-03-09 2017-09-18 삼성전자주식회사 멀티 유저의 전력 절감을 위한 단말 및 액세스 포인트의 통신 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101366241A (zh) * 2006-01-04 2009-02-11 美商内数位科技公司 在wlan系统中用于提供多模式的高效操作的方法和系统
CN101433022A (zh) * 2006-04-24 2009-05-13 交互数字技术公司 用于无线网格网络中的传输时机使用的方法和信令过程
WO2010128608A1 (ja) * 2009-05-08 2010-11-11 ソニー株式会社 通信装置及び通信方法、コンピューター・プログラム、並びに通信システム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2706802A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11425709B2 (en) 2014-02-11 2022-08-23 Huawei Technologies Co., Ltd. Data transmission processing method and apparatus

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