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1. 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.

2. 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.

3. 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.

4. 发明公开

EP4344292A1 METHOD AND APPARATUS FOR REPORTING BUFFER DATA 审中-实审
公开(公告)号：EP4344292A1
公开(公告)日：2024-03-27
申请号：EP22831916.6
申请日：2022-06-27
申请人： Huawei Technologies Co., Ltd.
发明人： KHOROV, Evgeny Mikhailovich , BANKOV, Dmitry , LEVITSKY, Ilya , GUO, Yuchen , LI, Yiqing , LI, Yunbo , HUNAG, Guogang , GAN, Ming
IPC分类号： H04W28/02
摘要： This application provides a method and an apparatus for reporting buffered data. The method includes: A station STA generates a first frame, where the first frame includes first information, the first information includes time information, the time information indicates a first time, and a first buffered data packet needs to be sent within the first time; and the STA sends the first frame. In this way, the first buffered data packet can be sent in time, and a delay requirement of an urgent service is met.

5. 发明公开

EP4228317A1 PPDU UPLINK BANDWIDTH INDICATION METHOD AND RELATED APPARATUS 审中-实审
公开(公告)号：EP4228317A1
公开(公告)日：2023-08-16
申请号：EP21885281.2
申请日：2021-10-28
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , LI, Yiqing , LIU, Chenchen , LI, Yunbo , GUO, Yuchen , YU, Jian , YANG, Xun
IPC分类号： H04W28/20 , H04W72/04
摘要： This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information directly indicates or jointly indicates an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information indicates distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU. According to embodiments of this application, the trigger frame is capable of triggering the EHT station to perform uplink data transmission on a bandwidth greater than 160 MHz while ensuring compatibility of the trigger frame.

6. 发明公开

EP4228215A1 PPDU UPLINK BANDWIDTH INDICATION METHOD AND RELATED DEVICE 审中-实审
公开(公告)号：EP4228215A1
公开(公告)日：2023-08-16
申请号：EP21885280.4
申请日：2021-10-28
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Ming , LI, Yiqing , LIU, Chenchen , LI, Yunbo , GUO, Yuchen , YU, Jian , YANG, Xun
IPC分类号： H04L27/26
摘要： This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information is directly used to indicate or jointly indicate an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information is used to indicate distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU. According to embodiments of this application, the trigger frame is capable of triggering the EHT station to perform uplink data transmission on a bandwidth greater than 160 MHz while ensuring compatibility of the trigger frame.

7. 发明公开

EP4040747A1 METHOD AND DEVICE FOR SENDING FEEDBACK INFORMATION 审中-实审
公开(公告)号：EP4040747A1
公开(公告)日：2022-08-10
申请号：EP20885881.1
申请日：2020-11-09
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Yiqing , GUO, Yuchen , LIANG, Dandan , YU, Jian
IPC分类号： H04L12/939
摘要： This application provides a feedback information sending method and an apparatus. By binding a BAR-BA feedback manner, that is, first a request and then a feedback, when it is determined that data retransmission is performed by using a HARQ mechanism, duration of an acknowledgment operation performed by a data receive end on retransmitted data may be increased. Alternatively, the receive end estimates duration required for feeding back a receiving status of the retransmitted data, and feeds back the duration to a transmit end, so that the transmit end may adaptively adjust duration of the retransmitted data based on a feedback capability of the receive end, to ensure that the feedback of the receive end on the receiving status of the retransmitted data is within an SIFS. Alternatively, in a multi-link scenario, the receive end separately feeds back a preamble in advance. In this way, when the preamble is incorrectly received, the transmit end stops sending data in time and enters retransmission, thereby reducing a waste of retransmission resources.

8. 发明公开

EP4456504A1 MULTI-LINK COMMUNICATION METHOD AND APPARATUS 失效
公开(公告)号：EP4456504A1
公开(公告)日：2024-10-30
申请号：EP23742729.9
申请日：2023-01-06
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Yunbo , LI, Yiqing , GAN, Ming , GUO, Yuchen
IPC分类号： H04L45/24
CPC分类号： H04L45/24
摘要： This application discloses a multi-link communication method and apparatus. The method includes: A transmitter sends a first A-MPDU, and a receiver receives the first A-MPDU. The receiver obtains a locally recorded scoreboard context, and when the first A-MPDU meets at least one of the following conditions: a first condition, a second condition, a third condition, or a fourth condition, the receiver refreshes the scoreboard context based on an SN of the first A-MPDU. According to the method provided in this application, the receiver can properly and effectively refresh the local scoreboard context, to ensure that the receiver correctly feeds back receiving statuses of all MPDUs in an A-MPDU received by the receiver.

9. 发明公开

EP4366200A1 RADIO FRAME SENDING METHOD AND APPARATUS, AND RADIO FRAME RECEIVING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4366200A1
公开(公告)日：2024-05-08
申请号：EP22845106.8
申请日：2022-06-29
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Yuchen , LI, Yiqing , HUANG, Guogang , LI, Yunbo , GAN, Ming
IPC分类号： H04L1/00
CPC分类号： H04L1/00
摘要： Embodiments of this application provide a radio frame sending method and apparatus, and a radio frame receiving method and apparatus, to carry station information of a multi-link station device in a manner in which a plurality of MLEs of a radio frame carry station information of a same link. This avoids a radio frame transmission failure and improves communication efficiency. In the method, a multi-link device generates a radio frame, where the radio frame includes a first multi-link element MLE and a second MLE, the first MLE includes a first information element, the second MLE includes a second information element, and the first information element and the second information element correspond to station information of a same link. Then, the multi-link device sends the radio frame. This application is applied to a wireless local area network system supporting next-generation Wi-Fi protocols of the IEEE 802.11ax, for example, the 802.11 series protocols such as the 802. 11be or the EHT.

10. 发明公开

EP4266793A1 COMMUNICATION METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4266793A1
公开(公告)日：2023-10-25
申请号：EP22739035.8
申请日：2022-01-12
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Mao , YAN, Zhongjiang , LI, Yiqing , LI, Yunbo , YU, Jian , GAN, Ming
IPC分类号： H04W72/04
摘要： This application provides a communication method and apparatus, to define a transmission process in a preemption mechanism. The method may include: A first device sends a block acknowledgment request frame to a second device. The block acknowledgment request frame is used to request the second device to send a block acknowledgment frame. The block acknowledgment frame indicates a receiving status of an access control layer protocol data unit in first transmission. The first transmission is suspended at a first moment, and the first moment is earlier than a transmission end moment when the first transmission is not suspended. The first device receives the block acknowledgment frame. The first device starts, at a second moment, to perform second transmission. A transmission priority of the second transmission is higher than a transmission priority of the first transmission. The second moment is later than a transmission end moment of the block acknowledgment frame. In embodiments of this application, the block acknowledgment request frame is used to trigger the second device to send the block acknowledgment frame. After the block acknowledgment frame is received, the second transmission starts to be performed. This can avoid a collision between the acknowledgment frame in the first transmission and the second transmission.

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