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1. 发明公开

EP4358619A1 BUFFER REPORT SENDING METHOD AND DEVICE AND BUFFER REPORT RECEIVING METHOD AND DEVICE 审中-实审
公开(公告)号：EP4358619A1
公开(公告)日：2024-04-24
申请号：EP22845385.8
申请日：2022-07-21
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Guogang , LI, Yunbo , GUO, Yuchen , GAN, Ming , LI, Yiqing
IPC分类号： H04W72/04
CPC分类号： H04W72/04
摘要： This application provides a buffer report sending and receiving method, and an apparatus, which are applicable to a scenario in which a plurality of uplinks/downlinks are set up between a non-AP MLD and an AP MLD in a Wi-Fi system, to send data on a direct link in time, and reduce a transmission delay on the direct link. The method includes: The non-AP MLD generates a buffer report, and sends the buffer report to the AP MLD on a first uplink/downlink of the plurality of uplinks/downlinks. The buffer report is used to request duration of direct transmission performed by a first affiliated non-AP STA of the non-AP MLD on a first direct link, the first direct link is a link between a first target non-AP STA and the first affiliated non-AP STA, and the first target non-AP STA and the first affiliated non-AP STA belong to a same BSS. Correspondingly, after receiving the buffer report, the AP MLD may allocate second transmission duration to the first affiliated non-AP STA. The second transmission duration includes the duration of direct transmission performed by the first affiliated non-AP STA on the first direct link.

2. 发明公开

EP4247048A1 TRIGGER FRAME SENDING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4247048A1
公开(公告)日：2023-09-20
申请号：EP21902388.4
申请日：2021-11-23
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Yiqing , LI, Yunbo , GUO, Yuchen , YU, Jian , GAN, Ming
IPC分类号： H04W28/04
摘要： A trigger frame transmitting method and an apparatus are provided, which relate to the field of wireless communications technologies (for example, a WLAN), and are used for implementing error recovery related to a trigger frame in an NSTR MLD communication scenario. The method includes: A multi-link device MLD transmits a first trigger frame through a first link at a first moment, and transmits a second trigger frame through a second link at the first moment, where a transmission end moment of the first trigger frame is aligned with a transmission end moment of the second trigger frame. Then, when the MLD does not successfully receive, through the first link, a first TB PPDU triggered by the first trigger frame, and successfully receives, through the second link, a second TB PPDU triggered by the second trigger frame, the MLD transmits a third trigger frame through the first link at a second moment, and transmits a fourth trigger frame through the second link at a third moment, where the second moment is aligned with the third moment.

3. 发明公开

EP4246858A2 DATA TRANSMISSION METHOD, COMMUNICATION APPARATUS, COMPUTER-READABLE STORAGE MEDIUM AND CHIP 审中-实审
公开(公告)号：EP4246858A2
公开(公告)日：2023-09-20
申请号：EP23166574.6
申请日：2022-05-20
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , HUANG, Guogang , LU, Yuxin , LI, Yiqing , GUO, Yuchen , LIU, Chenchen
IPC分类号： H04L5/00
摘要： Embodiments of this disclosure provide a data transmission method, a communication apparatus, a computer-readable storage medium, and a chip. The method includes: generating, by a first multi-link device, a management frame, where the management frame includes a receiver address, a transmitter address, and link indication information, and the link indication information indicates that the management frame is applied to at least one link corresponding to the link indication information; and sending the management frame to a second multi-link device on a link on which a station indicated by the receiver address or a station indicated by the transmitter address operates. In this way, in embodiments of this disclosure, the management frame may include the link indication information, to indicate a link to which the management frame is applied, so that cross-link transmission of the management frame can be implemented, and the second multi-link device can apply the management frame to a correct link. This avoids a processing error.

4. 发明公开

EP4207665A1 DATA TRANSMISSION METHOD, COMMUNICATION APPARATUS, COMPUTER-READABLE STORAGE MEDIUM, AND CHIP 审中-实审
公开(公告)号：EP4207665A1
公开(公告)日：2023-07-05
申请号：EP22804080.4
申请日：2022-05-20
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , HUANG, Guogang , LU, Yuxin , LI, Yiqing , GUO, Yuchen , LIU, Chenchen
IPC分类号： H04L5/00
摘要： Embodiments of this disclosure provide a data transmission method, a communication apparatus, a computer-readable storage medium, and a chip. The method includes: generating, by a first multi-link device, a management frame, where the management frame includes a receiver address, a transmitter address, and link indication information, and the link indication information indicates that the management frame is applied to at least one link corresponding to the link indication information; and sending the management frame to a second multi-link device on a link on which a station indicated by the receiver address or a station indicated by the transmitter address operates. In this way, in embodiments of this disclosure, the management frame may include the link indication information, to indicate a link to which the management frame is applied, so that cross-link transmission of the management frame can be implemented, and the second multi-link device can apply the management frame to a correct link. This avoids a processing error.

5. 发明公开

EP4192080A1 MULTI-LINK COMMUNICATION METHOD, SERVICE AND LINK MAPPING METHOD, AND DEVICE 审中-实审
公开(公告)号：EP4192080A1
公开(公告)日：2023-06-07
申请号：EP21857350.9
申请日：2021-06-28
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Yuchen , GAN, Ming , LI, Yunbo , LI, Yiqing , HUANG, Guogang
IPC分类号： H04W24/02
摘要： Embodiments of this application relate to a multi-link communication method, a traffic-to-link mapping method, and a device. When a multi-link device performs multi-link establishment, the multi-link device may establish, based on a requirement, multi-link communication on a part of or all links supported by the multi-link device. In subsequent communication, a link may be further added or deleted from an established multi-link communication link based on a requirement. In this way, flexibility of multi-link communication can be improved, and a requirement of the multi-link device for dynamically updating the communication link can be met. In addition, the multi-link device may further establish a traffic-to-link mapping relationship during multi-link establishment, or update the traffic-to-link mapping relationship after completing multi-link establishment, to manage traffic transmission more flexibly and improve quality of service of traffic.

6. 发明公开

EP4135360A1 MULTICAST SERVICE TRANSMISSION METHOD AND DEVICE SUITABLE FOR MULTI-LINK 审中-实审
公开(公告)号：EP4135360A1
公开(公告)日：2023-02-15
申请号：EP21817102.3
申请日：2021-06-04
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , LIANG, Dandan , LI, Yiqing , GUO, Yuchen , LI, Yunbo , YU, Jian , YANG, Xun
IPC分类号： H04W4/06 , H04W72/00 , H04W72/04
摘要： This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. Group addressed traffic indication information sent by a first AP of an AP MLD indicates whether one AP of the AP MLD has a group addressed traffic. The AP is the first AP or another AP of the AP MLD, and a first STA of a STA MLD may learn whether the first AP or the another AP has a group addressed traffic. This improves flexibility of a group addressed traffic notification of the AP. The group addressed traffic indication information indicates whether each AP in multiple or all APs of the AP MLD has a group addressed traffic, so that the first STA can learn whether the multiple APs have a group addressed traffic. In this way, each STA of the STA MLD does not need to listen to whether each AP has a group addressed traffic. This reduces power consumption of the STA MLD. This application may be applied to a wireless local area network system that supports an IEEE 802.11ax next-generation Wi-Fi EHT protocol, for example, 802.11 series protocols such as 802.11be.

7. 发明公开

EP4132200A1 PROBE METHOD FOR MULTI-LINK DEVICE AND COMMUNICATION APPARATUS 审中-实审
公开(公告)号：EP4132200A1
公开(公告)日：2023-02-08
申请号：EP21832092.7
申请日：2021-07-01
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Yuchen , GAN, Ming , LI, Yunbo , LI, Yiqing
IPC分类号： H04W76/15
摘要： 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 802.11be standard. The method includes: A STA multi-link device generates a probe request frame, where the probe request frame carries first indication information used to indicate an AP multi-link device to feed back communication information of an AP that works on at least one 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 at least one link includes a second link, and the second link is different from a first link; and the STA multi-link device sends the probe request frame on the first link. Further, the STA multi-link device receives, on the first link, the communication information that is of the AP on the at least one link and that is fed back by the AP multi-link device. It can be learned that, based on the method disclosed in this application, the STA multi-link device can obtain, in time, the communication information of the AP working on the second link.

8. 发明公开

EP4436268A1 DATA TRANSMISSION METHOD AND COMMUNICATION DEVICE 审中-实审
公开(公告)号：EP4436268A1
公开(公告)日：2024-09-25
申请号：EP22913391.3
申请日：2022-08-15
申请人： Huawei Technologies Co., Ltd.
发明人： LIN, Yousi , GAN, Ming , LI, Yiqing , LI, Yunbo
IPC分类号： H04W52/02
CPC分类号： Y02D30/70 , H04W52/02 , H04W72/53 , H04W72/0446
摘要： Embodiments of this application provide a data transmission method and a communication apparatus. The method includes: An access point receives restricted target wake time setup request information sent by a station. The restricted target wake time setup request information is used to request to set up a restricted target wake time. The access point sends restricted target wake time response information to the station. The restricted target wake time response information is used to respond to the restricted target wake time setup request information. The restricted target wake time setup request information or the restricted target wake time response information includes indication information of a first access category corresponding to low-latency traffic of the station. The station or the access point flexibly configures a new access category for the low-latency traffic. In embodiments of this application, the station or the access point can independently and selectively configure the access category for the low-latency traffic, so that a transmission requirement of the low-latency traffic of the station can be better met.

9. 发明公开

EP4395214A1 PHYSICAL LAYER PROTOCOL DATA UNIT TRANSMISSION METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4395214A1
公开(公告)日：2024-07-03
申请号：EP22866767.1
申请日：2022-09-09
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , LU, Yuxin , YU, Jian , LI, Yunbo , YANG, Xun , LIU, Chenchen , GONG, Bo , LI, Yiqing
IPC分类号： H04L5/00 , H04W28/16
CPC分类号： H04W28/16 , H04L5/00
摘要： Embodiments of this application provide a physical layer protocol data unit transmission method and an apparatus, to reduce spectrum resources wasting that is caused because a receive end communication apparatus does not send a physical layer protocol data unit when there is at least one sub-channel whose channel state is busy in sub-channels corresponding to a resource unit indicated by a resource unit allocation subfield. The method includes: A first communication apparatus may receive a trigger frame that is for indicating a first resource unit allocated to the first communication apparatus, and sends a physical layer protocol data unit PPDU on a part of or all of the first resource unit, where the first resource unit is a resource unit whose quantity of tones is greater than 996; or the first resource unit is a multiple resource unit MRU, and the MRU includes at least one resource unit whose quantity of tones is greater than or equal to 996.

10. 发明公开

EP4380111A1 RADIO-FRAME SENDING METHOD AND APPARATUS, AND RADIO-FRAME RECEIVING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4380111A1
公开(公告)日：2024-06-05
申请号：EP22848512.4
申请日：2022-07-26
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Guogang , GUO, Yuchen , LI, Yunbo , GAN, Ming , LI, Yiqing
IPC分类号： H04L12/28 , H04W36/08 , H04W48/16
CPC分类号： H04L69/06 , H04L12/28 , H04W48/16
摘要： A radio frame sending method and apparatus, and a radio frame receiving method and apparatus are provided, so that a receiver of a radio frame determines that channel information in information about a neighbor AP is invalid or is not notified, to prevent a legacy STAin the receiver of the radio frame from attempting, on a corresponding channel based on the channel information in the information about the neighbor AP, to probe and associate with the neighbor AP. The radio frame sending method includes: generating a radio frame, where the radio frame includes a first information element, the first information element includes a first field, the first information element is used to carry information about a neighbor AP, the first field indicates channel information in the information about the neighbor AP, and when a value of the first field is a first value, the first field indicates that the channel information in the information about the neighbor AP is invalid or is not notified; and sending the radio frame. This method is applied to a wireless local area network system supporting IEEE 802. 1 1ax next-generation Wi-Fi protocols, for example, 802.11 series protocols such as the 802.11be or the EHT.

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