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公开(公告)号：US20180084605A1
公开(公告)日：2018-03-22
申请号：US15822815
申请日：2017-11-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo LI , Yanchun LI , Yi LUO
IPC: H04W84/12
CPC classification number: H04W84/12 , H04J2011/0016 , H04W74/0858
Abstract: The present application provides a channel access process method in a wireless local area network. The method includes: generating, by a station, a backoff counter value; then performing, by the station, a backoff operation after receiving a first trigger frame, where the backoff operation includes: deducting, from the backoff counter value, a quantity N of subchannels for random access, to obtain a new backoff counter value; and when the new backoff counter value is 0 or a negative number, randomly selecting, by the station, one subchannel from the subchannels for random access, and then accessing the subchannel to send an uplink frame. The present application further provides a corresponding channel access apparatus. Applying the method and the apparatus of the embodiments of the present application improves system access efficiency and avoids a waste of system resources.
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公开(公告)号：US20170303196A1
公开(公告)日：2017-10-19
申请号：US15637424
申请日：2017-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W52/0212 , H04W24/08 , H04W28/20 , H04W52/0229 , H04W52/50 , H04W72/04 , H04W72/0493 , H04W74/0808 , H04W84/12 , Y02D70/142
Abstract: A data transmission method, including: determining, according to a maximum power value detected by performing a CCA on a primary channel in one or more processing time periods, a power value interval to which the maximum power value detected by performing the CCA belongs, where the determined power value interval is one of one or more power value intervals that do not overlap each other; obtaining a transmit power spectral density according to the determined power value interval, where there is a one-to-one correspondence between the one or more power value intervals and one or more transmit power spectral densities; and when a TXOP is obtained, performing data transmission on a transmission channel by using a power spectral density that is not greater than the transmit power spectral density.
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公开(公告)号：US20160205627A1
公开(公告)日：2016-07-14
申请号：US15066939
申请日：2016-03-10
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W52/0222 , H04B7/0452 , H04W52/0209 , H04W52/0212 , H04W52/0216 , H04W52/0235 , H04W52/46 , H04W88/02 , H04W88/08 , Y02D70/142
Abstract: A power save method, an AP device and an STA device are provided. According to whether power save is allowed in a current TXOP and whether a station STA is newly added in an operation object identifier of a subsequent frame of each frame of the current TXOP, the AP device respectively sets a TXOP power save indication of each frame, and when the TXOP power save indication of the current frame is power save allowed, the STA device determines whether to enter the Doze state according to a judgment result for a doze condition. The adoption of the method and the device can expand the power save application range, and enhance the power save effect.
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公开(公告)号：US20160156437A1
公开(公告)日：2016-06-02
申请号：US15015313
申请日：2016-02-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04L5/003 , H04W74/04 , H04W74/0808
Abstract: The present invention discloses a channel access method, apparatus and system, which can avoid signals at adjacent frequency bands interfere with each other. The method includes: monitoring, by a station STA, a channel state of a channel, wherein the channel comprises at least two sub-channels; sending, when it is monitored that the channel is in an idle state, a request to send a frame to an access point AP via at least one sub-channel in the channel; and if an access response frame fed back by the AP is received and the access response frame comprises identification information and channel resource allocation information of the station, determining that channel access succeeds, wherein the identification information and the channel resource allocation information of the station are used for indicating a channel resource allocated to the station for data transmission by the AP.
Abstract translation: 本发明公开了一种可以避免相邻频带信号彼此干扰的信道接入方法，装置和系统。 该方法包括：由站STA监视信道的信道状态，其中信道包括至少两个子信道; 当监视信道处于空闲状态时，发送经由所述信道中的至少一个子信道向接入点AP发送帧的请求; 并且如果接收到由AP反馈的接入响应帧，并且接入响应帧包括站的标识信息和信道资源分配信息，则确定信道接入成功，其中该站的标识信息和信道资源分配信息是 用于指示分配给站的信道资源以进行AP的数据传输。
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公开(公告)号：US20150100864A1
公开(公告)日：2015-04-09
申请号：US14572285
申请日：2014-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yi LUO , Mingjie DONG , Yunbo LI
CPC classification number: H04L1/0061 , H03M13/09 , H04L1/0041
Abstract: A method for sending information and a device thereof are provided. The method includes: selecting a sequence corresponding to original information to be sent according to mapping table of information-sequence; performing cyclic redundancy check on the original information according to the sequence to obtain a cyclic redundancy check code; and sending the original information and the cyclic redundancy check code. Compared with the conventional technology, no modifications on existing chips or protocols are required in the embodiments of the application, and development costs are saved.
Abstract translation: 提供了发送信息的方法及其装置。 该方法包括：根据信息序列的映射表，选择与要发送的原始信息对应的序列; 根据序列对原始信息进行循环冗余校验，得到循环冗余校验码; 并发送原始信息和循环冗余校验码。 与传统技术相比，在应用的实施例中不需要对现有芯片或协议进行修改，并节省开发成本。
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Patent Agency Ranking
公开(公告)号：US20240430657A1
公开(公告)日：2024-12-26
申请号：US18820687
申请日：2024-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yuchen GUO , Yunbo LI , Ming GAN
IPC: H04W4/90 , H04W74/08 , H04W74/0816
Abstract: Embodiments of this application disclose a communication method, to optimize a channel access parameter. The method includes: A first station sends a request frame to an access point. The request frame is used to request to obtain a channel priority access right. The request frame carries a first parameter set. The first parameter set includes MU EDCA parameters that the first station intends to use to perform channel contention. The first station receives a response frame for the request frame. The first station is an EPCS station. The first station performs channel access by using an MU EDCA mechanism. In embodiments of this application, the first parameter set includes the MU EDCA parameters that the first station intends to use to perform channel contention. The request frame carrying the first parameter set is sent. In this way, channel contention is performed by using parameters with a higher channel access priority.
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公开(公告)号：US20240381476A1
公开(公告)日：2024-11-14
申请号：US18777876
申请日：2024-07-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunbo LI , Yiqing LI , Ming GAN , Yuchen GUO
IPC: H04W76/20 , H04L49/9057 , H04W84/12
Abstract: 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.
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28.发明公开公开(公告)号：US20240333429A1
公开(公告)日：2024-10-03
申请号：US18743331
申请日：2024-06-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming GAN , Yifan ZHOU , Dandan LIANG , Jian YU , Yunbo LI , Yuchen GUO
IPC: H04L1/1607 , H04L1/00
CPC classification number: H04L1/1642 , H04L1/0083
Abstract: Embodiments of this application provide a communication method applied to a multi-link device in a wireless local area network (WLAN) and a related apparatus. For example, the communication method is applied to a WLAN supporting 802.11be. The method includes: receiving a probe request frame, where the probe request frame is included in a multi-link device (MLD); determining, according to a preset condition, whether to respond to the probe request frame, where the preset condition includes at least the following: a reference identifier in the probe request frame does not match a reference identifier of each station in the MLD; and if the preset condition is satisfied, skipping sending a probe response frame in response to the probe request frame.
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公开(公告)号：US20240314839A1
公开(公告)日：2024-09-19
申请号：US18672578
申请日：2024-05-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mengshi HU , Yifei LI , Yan LONG , Rong HE , Xuming FANG , Yunbo LI , Xiao HAN , Rui DU , Yi LV , Xun YANG
IPC: H04W74/0808 , H04B7/06 , H04W74/08
CPC classification number: H04W74/0808 , H04B7/0626 , H04W74/0866
Abstract: This application provides a communication method and an apparatus, to implement a channel sensing procedure between different apparatuses while meeting a communication requirement, thereby improving communication efficiency of a WLAN system and reducing overheads. In the method, a first apparatus sends a first frame to a second apparatus, where the first frame is used to request channel sensing; and the first apparatus receives a second frame from the second apparatus, where the second frame includes channel sensing information between the first apparatus and the second apparatus, the channel sensing information is determined based on a part of or all of n PPDUs, the n PPDUs are PPDUs sent by the first apparatus, and n is greater than or equal to 1.
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公开(公告)号：US20240187168A1
公开(公告)日：2024-06-06
申请号：US18440222
申请日：2024-02-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mao YANG , Zhongjiang YAN , Yuxin LU , Yiqing LI , Yunbo LI , Yuchen GUO , Ming GAN
CPC classification number: H04L5/0048 , H04W48/16 , H04W76/15
Abstract: The present disclosure relates to communication methods and apparatuses. In one example method, a non-access point multi-link device (non-AP MLD) receives a first frame from a first access point (AP) when performing a listening operation on a first link. The non-AP MLD switches some or all of spatial streams/antennas on each link of the non-AP MLD to the first link to perform a frame exchange with the first AP. When determining that any preset condition in a preset condition set is met, the non-AP MLD switches some spatial streams/antennas on the first link back to each link or another link to perform the listening operation.
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