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公开(公告)号：US11006420B2
公开(公告)日：2021-05-11
申请号：US16825749
申请日：2020-03-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: Disclosed is a data transmission method. The method comprises: reserving a first channel and a second channel, where the first channel is used for transmitting data and the second channel is used for transmitting ACKs; sending data to a receiving end on the first channel that is reserved; receiving an ACK that is sent by the receiving end and corresponds to the data on the second channel that is reserved and determining whether the data needs to be cached based on information carried in the ACK; and if the information carried in the ACK indicates that the receiving end has correctly received the data, clearing the data that is cached by a sending end. Through separate transmission of the data and the ACK, an efficiency problem of the sending end in providing MAC in a wireless system in a condition of a limited cache capacity is resolved.
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公开(公告)号：US10660026B2
公开(公告)日：2020-05-19
申请号：US15729286
申请日：2017-10-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tianyu Wu , Changle Li , Hang Lin
Abstract: Embodiments of the present invention provide a method for establishing an association between a STA and an AP, and the method includes: sending, by the STA, an association request frame to the AP, where the association request frame includes a service type element, and the service type element is used for indicating a sensor service type, an offloading service type, or a hybrid service type to which the STA belongs, where the sensor service type includes a first sensor service or a second sensor service, and the offloading service type includes a first offloading service or a second offloading service; and receiving, by the STA, an association response frame sent by the AP, where the association response frame is generated by the AP after determining, according to the service type element, a service type to which the STA belongs.
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公开(公告)号：US10218640B2
公开(公告)日：2019-02-26
申请号：US14542332
申请日：2014-11-14
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W74/08 , H04L12/807 , H04L12/937
Abstract: A method includes determining at least one first station; and sending first indication information to the first station, where the first indication information is used for indicating at least one first backoff duration, so that the first station performs a data transmission operation by using the first backoff duration, and the first backoff duration used by the first station to perform a data transmission operation is less than a second backoff duration used by a second station to perform a data transmission operation, or the first backoff duration used by the first station to perform a data transmission operation is greater than the second backoff duration used by the second station to perform a data transmission operation. Shortening backoff durations of some stations can ensure that these stations send data first, and extending backoff durations of some stations can ensure that the other stations send data first.
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公开(公告)号：US10172160B2
公开(公告)日：2019-01-01
申请号：US15220155
申请日：2016-07-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present disclosure discloses a channel contention method, an access point, and a station. The method includes: sending, by an AP, an RTS frame, where the RTS frame carries group response indication information, and the group response indication information is used to instruct multiple STAs to return CTS frames; receiving, by the AP, a CTS frame that is returned according to the group response indication information by a STA among the multiple STAs that receives the RTS frame; and determining, by the AP according to the received CTS frame, that a transmission opportunity is obtained. According to the channel contention method, the access point, and the station in the embodiments of the present disclosure, data transmission between an AP and multiple STAs can be effectively protected with a relatively small overhead, and system efficiency can be improved.
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公开(公告)号：US20160309513A1
公开(公告)日：2016-10-20
申请号：US15191307
申请日：2016-06-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chixiang Ma , Tianyu Wu , Jiayin Zhang
CPC classification number: H04W74/0816 , H04W72/0446 , H04W72/1252 , H04W84/12
Abstract: The present disclosure provides a data transmission method and device. The method includes sensing, by a station, whether a channel allocated by an access point associated with the station is occupied, before obtaining a downlink scheduling phase. If the channel is not occupied, sending, by the station, channel clear signaling to the access point, where the channel clear signaling includes a first identifier used for identifying the station and a second identifier used for identifying the access point. The method also includes receiving, by the station in the downlink scheduling phase, data transmitted by the access point. The present disclosure ensures normal data transmission.
Abstract translation: 本公开提供了一种数据传输方法和装置。 所述方法包括：在获得下行链路调度阶段之前，由站点感测由与所述站相关联的接入点分配的信道是否被占用。 如果该信道没有被占用，则由该站向接入点发送信道清除信令，其中信道清除信令包括用于识别该站的第一标识符和用于识别接入点的第二标识符。 该方法还包括由下行链路调度阶段中的站接收由接入点发送的数据。 本公开确保正常的数据传输。
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Patent Agency Ranking
公开(公告)号：US09203486B2
公开(公告)日：2015-12-01
申请号：US14087528
申请日：2013-11-22
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L51/043 , H04W72/1231 , H04W72/1236 , Y02B60/50 , Y02D70/142 , Y02D70/444
Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，以及接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。
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公开(公告)号：US20150071304A1
公开(公告)日：2015-03-12
申请号：US14542332
申请日：2014-11-14
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L12/937 , H04L12/807
CPC classification number: H04L49/254 , H04L47/27 , H04W74/085
Abstract: A method includes determining at least one first station; and sending first indication information to the first station, where the first indication information is used for indicating at least one first backoff duration, so that the first station performs a data transmission operation by using the first backoff duration, and the first backoff duration used by the first station to perform a data transmission operation is less than a second backoff duration used by a second station to perform a data transmission operation, or the first backoff duration used by the first station to perform a data transmission operation is greater than the second backoff duration used by the second station to perform a data transmission operation. Shortening backoff durations of some stations can ensure that these stations send data first, and extending backoff durations of some stations can ensure that the other stations send data first.
Abstract translation: 一种方法包括确定至少一个第一站; 并且向所述第一站发送第一指示信息，其中所述第一指示信息用于指示至少一个第一退避持续时间，使得所述第一站通过使用所述第一回退持续时间和所述第一回退持续时间使用的所述第一回退持续时间来执行数据传输操作， 执行数据传输操作的第一站小于第二站用于执行数据传输操作的第二退避持续时间，或者由第一站执行数据传输操作所使用的第一退避持续时间大于第二次退避 由第二站用于执行数据传输操作的持续时间。 缩短一些站点的退避时间可以确保这些站首先发送数据，并且延长一些站的后退时间可以确保其他站首先发送数据。
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公开(公告)号：US20140369301A1
公开(公告)日：2014-12-18
申请号：US14465923
申请日：2014-08-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tianyu Wu , Changle Li , Hui Han
CPC classification number: H04W76/021 , H04W8/26 , H04W76/11 , H04W84/12
Abstract: Embodiments of the present invention disclose a method and an apparatus for allocating an association identifier, so as to dynamically allocate an association identifier (AID) to a target station. The method according to the embodiments of the present invention includes: sending, by an access point (AP), an AID allocation message to a target station, where the AID allocation message carries a target AID of the target station, and the target station is a station to be allocated with an AID or a station with an AID to be updated.
Abstract translation: 本发明的实施例公开了一种用于分配关联标识符的方法和装置，以便动态地向目标站分配关联标识符（AID）。 根据本发明的实施例的方法包括：由接入点（AP）向目标站发送AID分配消息，其中AID分配消息携带目标站的目标AID，目标站是 一个要分配AID或一个具有要更新的AID的电台的电台。
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公开(公告)号：US10827527B2
公开(公告)日：2020-11-03
申请号：US16124876
申请日：2018-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yalin Liu , Jun Zhu , Jiayin Zhang , Tianyu Wu
Abstract: Embodiments provide a channel contention method and apparatus. The channel contention apparatus belongs to a basic service set (BSS). The BSS includes an access point (AP) and at least one first station (STA). Both the AP and the at least one first STA participate in channel contention. The apparatus is the AP or any first STA. The apparatus includes a sensing module configured to sense a channel. The apparatus also includes a contention module configured to contend for the channel. The AP centrally performs control and scheduling so that all of at least one network device in the BSS can transmit data using the channel.
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公开(公告)号：US09980289B2
公开(公告)日：2018-05-22
申请号：US14958874
申请日：2015-12-03
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W74/0816 , H04W74/006 , H04W84/12
Abstract: Embodiments of the present invention provide a method and an apparatus for establishing a transmission mode, which relates to the field of network technologies, ensure backward compatibilities of an existing WLAN system and a next generation WLAN system, realize introduction of a new technology in the next generation WLAN protocol during data transmission, and improve network performance. The method includes: transmitting, by an access point AP, a first Clear To Send frame to a first station STA, to enable the first STA to set duration of a network allocation vector NAV of the first STA and remain in a silent state when the AP communicates with a second STA; transmitting the first Clear To Send frame to the second STA, to enable the second STA to process a Green Phase operation; and communicating with the second STA in a Green Phase period. The present invention is applied in data transmission.
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