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公开(公告)号：US20230262775A1
公开(公告)日：2023-08-17
申请号：US18164278
申请日：2023-02-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dandan Liang , Ming Gan , Xin Zuo , Yunbo Li
CPC classification number: H04W74/0825 , H04L69/22 , H04W74/0816 , H04W72/12
Abstract: Example methods and apparatus for implementing collision detection in data transmission are described. One example method includes sending a data packet including collision detection information to a receive end, where the collision detection information is used by the receive end to perform collision detection on the data packet. A status indication message sent by the receive end is received by the receive end when sending the data packet. The receive end parses the status indication message. If the status indication message includes collision information, the receive end perform retransmission of the data packet.
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公开(公告)号：US20230145901A1
公开(公告)日：2023-05-11
申请号：US18149490
申请日：2023-01-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yiqing Li , Yunbo Li , Yuchen Guo , Ming Gan
Abstract: A link error recovery method applied to a transmitter MLD is provided. Links between the transmitter MLD and a receiver MLD include a first link and a second link, and one of the transmitter MLD and the receiver MLD has an STR capability while the other does not have the STR capability. The method includes: determining that transmission of a first PPDU on the first link fails; and transmitting a second PPDU to the receiver MLD at a first moment by using the first link, the second PPDU being used to retransmit an error part in the first PPDU. The first moment is a moment at which the transmitter MLD obtains transmission status information of the second link. Alternatively, the first moment is a moment for transmitting a next PPDU on the first link if the first PPDU is normally transmitted.
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163.发明公开公开(公告)号：US20230145827A1
公开(公告)日：2023-05-11
申请号：US18148303
申请日：2022-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Yiqing Li , Chenchen Liu , Jian Yu , Mengshi Hu , Yunbo Li , Yuchen Guo
CPC classification number: H04W36/0077 , H04W74/006
Abstract: This application relates to the field of wireless communication, and in particular, to individually addressed traffic indication methods and apparatuses applicable to multiple links, for example, in a wireless local area network supporting an 802.11be standard. In an example method, a first access point (AP) of a first access point multi-link device (AP MLD) generates and sends individually addressed traffic indication information. The individually addressed traffic indication information is used to indicate whether a non-AP MLD associated with the first AP MLD has a downlink individually addressed traffic and whether a 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. The non-transmitted AP is in a multiple basic service set identifier (BSSID) set in which the first AP is located.
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公开(公告)号：US20230118836A1
公开(公告)日：2023-04-20
申请号：US18068274
申请日：2022-12-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chenchen Liu , Dandan Liang , Ming Gan , Meihong Zhang
Abstract: A data frame sending method includes: encoding first information by using a first encoder, to generate a first coded segment and a second coded segment; interleaving the first information by using M interleavers, to generate M pieces of information, where the M pieces of information one-to-one correspond to the M interleavers; encoding the M pieces of information by using the first encoder, to generate 2M coded segments; generating a data frame, where the data frame includes N coded segments, and the N coded segments include all or a portion of the first coded segment, the second coded segment, and the 2M coded segments; and sending the data frame through at least two subchannels in N subchannels.
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公开(公告)号：US20230085448A1
公开(公告)日：2023-03-16
申请号：US17985355
申请日：2022-11-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mengshi Hu , Jian Yu , Ming Gan
IPC: H04L5/00
Abstract: This application relates to the field of wireless fidelity technologies, and in particular, to a resource indication method, an access point, and a station. The method includes: An access point generates a PPDU, and sends the PPDU, where the PPDU comprises a preamble puncturing information field; and where when the PPDU is in non-orthogonal frequency division multiple access (non-OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of an entire bandwidth corresponding to the PPDU; when the PPDU is in an orthogonal frequency division multiple access (OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of 80 MHz corresponding to a frequency domain fragment.
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Patent Agency Ranking
公开(公告)号：US20230071851A1
公开(公告)日：2023-03-09
申请号：US17988579
申请日：2022-11-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Dandan Liang , Yiqing Li , Yuchen Guo , Yunbo Li , Jian Yu , Xun Yang
Abstract: This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. A first access point (AP) of an AP multi-link device (MLD) sends group addressed traffic indication information indicating whether each AP of other APs of the AP MLD has a group addressed traffic, so that a station (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 each AP 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.
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公开(公告)号：US20230050803A1
公开(公告)日：2023-02-16
申请号：US17965457
申请日：2022-10-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ming Gan , Dandan Liang , Jian Yu , Yuchen Guo , Yunbo Li , Xun Yang
Abstract: This application provides a communications method and a communications apparatus. A first station in a first multi-link device sends first information to a second multi-link device, where the first information is used to indicate a frequency at which a station in a power saving mode in the first multi-link device receives a beacon frame. In this way, the second multi-link device may learn about, based on the first information, a frequency at which a station in the first multi-link device receives a beacon frame, thereby helping the second multi-link device effectively manage a cache service of each station in the first multi-link device and manage a data buffer space.
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公开(公告)号：US20230006787A1
公开(公告)日：2023-01-05
申请号：US17941778
申请日：2022-09-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Yu , Mengshi Hu , Ming Gan
Abstract: This application provides a data transmission method and a related apparatus. The method includes: A network device generates a first physical layer protocol data unit PPDU. The first PPDU includes a first universal-Signaling field U-SIG field and a first extremely high throughput-Signaling field EHT-SIG field, a sum of a quantity of information bits of the first U-SIG field and a quantity of information bits of the first EHT-SIG field is less than or equal to 78 information bits, and at least one of the first U-SIG field and the first EHT-SIG field includes an identifier indication field, where the identifier indication field is used to uniquely identify one station. The network device sends an encoded first PPDU to a station.
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169.发明授权公开(公告)号：US11438204B2
公开(公告)日：2022-09-06
申请号：US17164185
申请日：2021-02-01
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application provides a physical layer convergence procedure protocol data unit communication method and a related apparatus. The method includes: receiving, by a receiving apparatus, a physical layer convergence procedure protocol data unit PPDU sent by a sending apparatus, where the PPDU includes synchronization adjustment indication information and a data field, and the synchronization adjustment indication information and the data field are sent in a bandwidth less than 20 MHz; and performing, by the receiving apparatus, time synchronization and automatic gain control AGC on the data field based on the synchronization adjustment indication information. According to this solution, the receiving apparatus can perform, by using the synchronization adjustment indication information, time synchronization and automatic gain control AGC on the PPDU transmitted in a narrow bandwidth.
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公开(公告)号：US11425716B2
公开(公告)日：2022-08-23
申请号：US16890795
申请日：2020-06-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).
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