Huawei Technologies Co., Limited

Future Wei Technologies, Inc.

Huawei Device Co., Ltd.

Huawei Technologies,co., Ltd.

Yunbo Li

Ming Gan

Yuchen Guo

Jian Yu

Xun Yang

Guogang Huang

Yiqing Li

Yanchun Li

Mao Yang

Dandan Liang

Bo Li

Yi Luo

Tianyu Wu

Kwok Shum Au

Sheng Sun

Yifan Zhou

Le Liu

Meilu Lin

Xiao Han

Zhongjiang Yan

Hufei Zhu

Osama S Aboul-Magd

Jiayin Zhang

Mengshi Hu

Chenchen Liu

Xun Zhou

Lianbo Zhang

Shimon Shilo

Genadiy Tsodik

Zhou Lan

Qiao Qu

Jung Hoon Suh

Oded Redlich

Ying Wang

Phillip Barber

Lvxi Yang

Tao Wu

Peter Loc

Zhiming Ding

Jing Tian Li

Yi Long

Xin Zuo

Chixiang Ma

Junghoon Suh

Qian Zhang

Bo Yang

Weimin Wu

Yuxin Lu

Zhaoxia Liu

Yanhong Chen

Sheng Liu

Jun Luo

Ping Fang

Yingpei Lin

Gong Zhang

Guiming Shu

Jia Ya Jia

Cheng He

Ji Chen

Jia He

Mengyao Ma

Lujia Pan

Meihong Zhang

Rui Du

Leonid Epstein

Hui Han

Bo Gong

Yuanyuan Peng

Ziquan Zhou

Shiyu Wang

Qianyi Huang

Huangxun Chen

Limin Liao

This application discloses methods and apparatuses applicable to multiple links, for example, in a wireless local area network supporting an 802.11be standard. In an example, a first station (STA) of a first non-access-point multi-link device (non-AP MLD) receives individually addressed traffic indication information that indicates whether the first non-AP MLD associated with a first access point multi-link device (AP MLD) has a downlink individually addressed traffic and whether a second non-AP MLD associated with a second AP MLD has a downlink individually addressed traffic. The second AP MLD is an AP MLD to which a non-transmitted AP belongs, and the non-transmitted AP is in a multiple basic service set identifier (BSSID) set in which the first AP is located. The first STA determines whether the first non-AP MLD has a downlink individually addressed traffic according to the individually addressed traffic indication information.

Individually addressed traffic indication method applicable to multiple links and related apparatus

Embodiments provide a multi-link communication method and a related apparatus. A first station generates a radio frame, where the first station is one of a plurality of stations included in a first multi-link device. The first multi-link device includes a first station operating on a first link and a second station operating on a second link. The first station transmits the radio frame on the first link, where the radio frame includes capability indication information, and the capability indication information indicates whether the first station and the second station support simultaneous transmitting/receiving operations. According to the embodiments of this application, communication quality can be ensured.

Multi-link communication method and related apparatus

Example channel access methods and apparatus are described. One example method includes performing first channel contention by a multi-link device on a first link, where an initial value of a backoff counter in the first channel contention is determined based on a first value of a contention window. The multi-link device may perform second channel contention on the first link when a value of the backoff counter becomes 0 in the first channel contention and when the multi-link device does not perform transmission on the first link. An initial value of the backoff counter in the second channel contention is determined based on a second value of the contention window, and the second value is equal to the first value or a minimum value of the contention window.

Channel access method for multi-link device, and related apparatus

Embodiments of this application disclose a channel puncture mode indication method and a related apparatus, which are applied to a wireless local area network (WLAN) system, for example, a WLAN system supporting 802.11be. The method includes: An access point sends a multi-user request to send MU-RTS frame, where the MU-RTS frame includes a common information field, the common information field includes channel puncture information, and the channel puncture information indicates whether at least one 20 MHz channel is occupied.

Channel puncture mode indication method and related apparatus

A channel contention method includes performing, by a first station and a second station of a multi-link device (MLD), channel contention based on a first enhanced distributed channel access (EDCA) parameter; generating, by the first station and the second station, a point coordination function (PCF) inter-frame space (PIFS) access t imer when the first station performs EDCA access and the second station performs PIFS access; and performing, by the first station and the second station, channel contention based on a second EDCA parameter before the PIFS access timer backs off to 0.

Channel contention method and related apparatus

A method for determining a receiving status of a data frame and a first multi-link device. The method includes sending data frames to a second multi-link device over multiple links; receiving, over a first link in the multiple links, a block acknowledgment (BA) frame, where a bitmap in the BA frame indicates a receiving status of a data frame transmitted over the first link and indicates a receiving status of a data frame transmitted over a second link in the multiple links, and determining, based on a first time and a second time, a receiving status of a data frame corresponding to a first bit.

Method for determining receiving status of data frame and communication apparatus

This disclosure provides methods for modifying a block acknowledgment (BA) protocol parameter. One example method includes a first device that receives a multi-traffic identifier (multi-TID) BA setup request frame comprising multiple pieces of BA protocol identification information from a second device, where the multi-TID BA setup request frame is used to set up parameter information of multiple BA protocols identified by the multiple pieces of BA protocol identification information. The first device sends a multi-TID BA setup response frame to the second device, where the multi-TID BA setup response frame is used to respond to the multi-TID BA setup request frame.

Method for modifying BA protocol parameter and device

A method includes receiving quality of service requirement information including packet loss rate indication information. The packet loss rate indication information includes an index value and a reference number of service data packets. The reference number of service data packets indicates a reference measurement number for counting the packet loss rate. The index value includes one or more characters. The index value corresponds to an index item in a database. The index item in the database has a mapping relationship with an acceptable maximum packet loss rate in the database. The acceptable maximum packet loss rate includes two or more characters. A quantity of the one or more characters included in the index value is less than a quantity of the two or more characters included in the acceptable maximum packet loss rate. The method also includes determining quality of service requirement based on the quality of service requirement information.

Communication method and apparatus

This application discloses a multi-link device probing method and a communication apparatus, which may be applied to a wireless local area network supporting the 802.11 be standard. The method includes: A station (STA) multi-link device generates a probe request frame, where the probe request frame carries first indication information used to indicate a first access appoint (AP) working on a first link in an AP multi-link device to feed back communication information of an AP that works on a second link and that is in the AP multi-link device, the communication information is used by the STA multi-link device to perform multi-link communication with the AP multi-link device, the second link is different from a first link; and the STA multi-link device sends the probe request frame on the first link.

Multi-link device probing method and communication apparatus

Embodiments of this application disclose a spatial reuse indication method and a wireless communications apparatus, thereby reducing a quantity of nodes that can participate in spatial reuse, reducing mutual interference between nodes in spatial reuse, and improving spatial reuse system performance. The method in some implementations includes a first access point generates a spatial reuse limitation indication and a spatial reuse group indication. The spatial reuse limitation indication can be used to indicate whether only a node in a spatial reuse group is allowed for spatial reuse and to indicate the spatial reuse group. The spatial reuse group includes one or more basic service sets. The first access point sends the spatial reuse limitation indication and the spatial reuse group indication.

Spatial reuse indication method and wireless communications apparatus

This application provides a communication method and an apparatus, and relates to the field of communications technologies, to reduce a phenomenon that an acknowledge rule is violated in some scenarios. The method includes: After a receive device receives a first data unit from a transmit device through a first link, the receive device sends receiving status information of the first data unit to the transmit device through the first link, unless the first data unit meets any one of a first preset condition. The first preset condition includes: Correctly received information of the first data unit is fed back through another link, or an acknowledge policy corresponding to the first data unit is no acknowledge. The communication method in embodiments of this application is applied to a multi-link data transmission process.

This application relates to the field of wireless communication, and in particular, to a multi-channel hybrid transmission technology. In an embodiment, a data transmission method comprises: generating, by a first wireless communications device, a physical protocol data unit (PPDU), wherein the PPDU comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal field (L-SIG), and two signature symbols after the L-SIG in a time-domain, and wherein the two signature symbols are identical and are modulated based on binary phase shift keying (BPSK), the two signature symbols identify a wireless communications standard the PPDU complies with; and transmitting, by the first wireless communications device, the PPDU to a second wireless communications device.

Multi-channel hybrid transmission method and apparatus in wireless local area network

A non-AP MLD or a first STA in the non-AP MLD generates a first frame. The first frame includes indication information for indicating padding duration for a channel switch delay in an initial control frame. The padding duration is determined based on duration of a control response frame. The non-AP MLD or the first STA or another STA in the non-AP MLD transmits the first frame. An AP MLD or a first AP or another AP in the AP MLD receives the first frame. The AP MLD or the first AP determines the padding duration of the initial control frame based on the indication information.

Information indication method and communication apparatus

The present disclosure suggests to expand and improve the method of utilizing channel resources in the 802.11be standard by allowing the use of multiple and non-contiguous portions of a channel. Supporting multiple resource units (MRUs) and non-contiguous resource units (RUs) improves the channel utilization by making it more efficient due to enhancing the capability of leveraging the channel selectivity. To this end, a wireless network device for resource allocation is provided and configured to define a non-contiguous MRU in the bandwidth of the channel. The channel includes a plurality of RUs, and the non-contiguous MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel, and/or is defined by aggregating two or more non-adjacent RUs of the channel.

Device and method for non-contiguous multiple resource unit in a wireless network

In a communication method, a first access point (AP) in a first AP multi-link device generates a management frame that includes a capability information field. The capability information field includes first indication information indicating whether a second AP, which is also in the first AP multi-link device, has performed a channel switch. The first AP then sends the management frame to a first station (STA).

Method of indicating changes by an access point

Growing community of inventors

Shenzhen, China

Yunbo Li