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公开(公告)号：US11265832B2
公开(公告)日：2022-03-01
申请号：US16537219
申请日：2019-08-09
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present invention disclose a data processing method and apparatus, and belong to the field of communications technologies. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a preamble field, a data field, and a middle preamble field, and the preamble in the PPDU includes information used to indicate an insertion frequency of the middle preamble in the data field in the PPDU; and sending the PPDU. The insertion frequency of the middle preamble in the data field is indicated by using a specified field in the preamble. In this way, in different scenarios, the middle preamble may be inserted into the data field at different frequency, thereby reducing overheads of an inserted pilot and improving data transmission performance.
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公开(公告)号：US11026259B2
公开(公告)日：2021-06-01
申请号：US16220635
申请日：2018-12-14
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present disclosure disclose a data communication method and apparatus. The data communication method includes: when receiving a PPDU, obtaining, by a network node, a BSS identifier in the PPDU; if the BSS identifier in the PPDU is different from a first BSS identifier, and the BSS identifier in the PPDU is the same as a second BSS identifier, determining whether the PPDU meets a preset spatial reuse condition, where the first BSS identifier is an identifier of a first BSS to which the network node belongs, the second BSS identifier is an identifier of an extended BSS to which a target relay belongs, and the target relay and the network node belong to the first BSS; and if the PPDU meets the preset spatial reuse condition, contending for an access channel, and communicating with a station other than the target relay in the first BSS.
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公开(公告)号：US10790891B2
公开(公告)日：2020-09-29
申请号：US16503284
申请日：2019-07-03
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method for transmitting channel state information includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; and receiving the channel state information sent by the target STAs by using the communication resource.
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公开(公告)号：US10784985B2
公开(公告)日：2020-09-22
申请号：US15853937
申请日：2017-12-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: A WLAN link adaptation method and a network device are provided, and can provide accurate link adaptation for each user in an OFDMA communications system. Embodiments of the present application include: obtaining, by a first network device, a target channel information measurement result, where the target channel information measurement result is a measurement result obtained by measuring channel information over target bandwidth; and determining, by the first network device, a modulation and coding scheme MCS of a link according to the target channel information measurement result.
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公开(公告)号：US10735233B2
公开(公告)日：2020-08-04
申请号：US16017083
申请日：2018-06-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Genadiy Tsodik , Ningjuan Wang , Jian Yu , Xin Xue , Shimon Shilo , Doron Ezri , Oded Redlich , Le Liu , Wei Lin
Abstract: The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized.
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Patent Agency Ranking
公开(公告)号：US10560936B2
公开(公告)日：2020-02-11
申请号：US15667157
申请日：2017-08-02
Applicant: Huawei Technologies Co., Ltd.
Abstract: A resource indication method and an apparatus relating to the communications field provided to resolve a problem that overheads are extremely large when an access point indicates a resource to each station, and improve resource utilization in resource indication. The method includes generating, by an access point, resource mapping information, where the resource mapping information includes a plurality of mapping segments, each mapping segment is associated with a frame type, each mapping segment includes a plurality of resource indicators, and each resource indicator indicates a resource allocated to a station in a frame corresponding to a frame type associated with a mapping segment to which the resource indicator belongs, and sending, by the access point, the resource mapping information.
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公开(公告)号：US10523396B2
公开(公告)日：2019-12-31
申请号：US16362603
申请日：2019-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: A method for sending a wireless local area network packet structure is provided, and the method comprises: determining a packet structure, where the packet structure comprises an HE-SIGA and an HE-SIGB, the HE-SIGA comprises an indication information, and if a current transmission mode is a full bandwidth MU-MIMO transmission, the indication information is used to indicate a number of scheduled users, or if the current transmission mode is other transmission mode, the indication information is used to indicate a number of symbols in the HE-SIGB; and sending the packet structure.
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118.发明授权公开(公告)号：US10390355B2
公开(公告)日：2019-08-20
申请号：US15713247
申请日：2017-09-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuchen Guo , Meilu Lin , Xun Yang , Jian Yu
Abstract: An access point generates a beacon frame that carries a trigger frame information element comprising sending information of a trigger frame for indicating a sending period of the trigger frame; and sends the beacon frame. In this case, the station switches to an active state, and receives the trigger frame by listening to the channel, and the station performs uplink transmission according to indication of the trigger frame after receiving the trigger frame. In this way, when signaling overheads are not increased and reliability is ensured, a station can learn of a sending time of a trigger frame, and the station remains in a receiving state in an appropriate period of time.
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公开(公告)号：US20190245669A1
公开(公告)日：2019-08-08
申请号：US16390333
申请日：2019-04-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ningjuan Wang , Xin Xue , Min Yan , Jian Yu
CPC classification number: H04L5/0053 , H04B7/00 , H04B7/24 , H04L65/4076 , H04W56/005 , H04W84/12
Abstract: An access device constructs a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device. The access device broadcasts the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. Data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.
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公开(公告)号：US20190200404A1
公开(公告)日：2019-06-27
申请号：US16287929
申请日：2019-02-27
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W76/11 , H04L5/0007 , H04W4/90 , H04W60/04 , H04W72/04 , H04W72/0446 , H04W74/0808 , H04W74/0816 , H04W84/12
Abstract: Embodiments of this application provide a service data transmission method, an access point, and a station. The method includes: receiving, by a station, a control frame, where the control frame includes control information; contending for a resource based on the control information; and sending first-type service data of the station to an access point on the resource obtained by contention, where the control information is used to instruct the station to contend for the resource used to transmit the first-type service data. In the embodiments of this application, the access point triggers the station to perform a procedure of reporting uplink first-type service data, and this can improve transmission efficiency of service data.
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