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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：US10122498B2
公开(公告)日：2018-11-06
申请号：US15012561
申请日：2016-02-01
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L1/16 , H04L29/08 , H04B7/04 , H04B7/0452 , H04L1/00
Abstract: Embodiments of the present invention provide a communication method, apparatus and system for multiple access points. The method includes: simultaneously sending, by a primary sending terminal and a secondary sending terminal, data corresponding to each receiving terminal to each receiving terminal through a shared channel; sending, by the primary sending terminal, BAR corresponding to the data to each receiving terminal; receiving, by the primary sending terminal, BA corresponding to the BAR and sent by each receiving terminal; and if the BA indicates that the data are correctly received by each receiving terminal, clearing the data cached in the primary sending terminal, and if the BA indicates that the data is not correctly received by each receiving terminal, retransmitting data which is not correctly received, and clearing correctly received data cached in the primary sending terminal.
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公开(公告)号：US10051639B2
公开(公告)日：2018-08-14
申请号：US14941459
申请日：2015-11-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo Li , Lianbo Zhang , Yi Luo
Abstract: The present invention discloses a method, an apparatus and a wireless terminal for channel switch, and the method includes: sending information on the target channel and a first channel within the preset channel soft switch time interval after a channel switch announcement instruction is sent on the first channel when the first channel needs to be switched, and stopping sending information on the first channel if the preset channel soft switch time interval ends. By means of above method, the probability of switch failure for the user may be reduced in a scenario with frequent channel switch.
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Patent Agency Ranking
公开(公告)号：US10038764B2
公开(公告)日：2018-07-31
申请号：US14972989
申请日：2015-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yalin Liu , Jiayin Zhang , Yi Luo
CPC classification number: H04L69/22 , H04L5/005 , H04L25/0202 , H04L25/0226 , H04L27/2613 , H04W72/04
Abstract: A data transmission method includes determining, by a transmitting device, a long training sequence set, where the long training sequence set includes a plurality of long training sequences. The method also includes determining a mapping relationship between each long training sequence in the long training sequence set and first sub-identity information in identity information of each receiving device in a communications system. When data needs to be transmitted to a target receiving device, the method includes selecting a target long training sequence from the long training sequence set according to first sub-identity information of the target receiving device and the mapping relationship. The method includes performing encapsulation processing on the data according to the target long training sequence to generate a data packet, so as to carry the target long training sequence in the data packet. The method includes sending the data packet to the target receiving device.
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公开(公告)号：US10028242B2
公开(公告)日：2018-07-17
申请号：US15134062
申请日：2016-04-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: The present disclosure provide a transmission method and a device, which relate to the technical field of communications and reduce overhead and improve work efficiency in an application of cooperative transmission in aspects of synchronization, sharing of information such as data and the like, obtaining of channel information and data transmission. Meanwhile application scenarios may also be extended. The method specifically includes: obtaining, by an access point AP, a parameter value, wherein the parameter value is a frequency difference between a crystal oscillator frequency of the AP and a reference crystal oscillator frequency of a reference AP or a delay difference of the AP with respect to the reference AP; compensating, by the AP, a phase difference or a time difference according to the parameter value when both of the AP and the reference AP send data. The present disclosure is applied to an application of a cooperative transmission.
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66.发明申请Data Frame Sending Method and Apparatus, and Data Frame Receiving Method and Apparatus 有权数据帧发送方法和装置，以及数据帧接收方法和装置公开(公告)号：US20160165549A1
公开(公告)日：2016-06-09
申请号：US15011011
申请日：2016-01-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiayin Zhang , Yingpei Lin , Yi Luo
CPC classification number: H04W52/243 , H04W52/143 , H04W52/367 , H04W52/38 , H04W52/50
Abstract: The present invention provides a data frame sending and receiving method and apparatus. The data frame sending method includes: receiving, by a first access point, first interference power parameters fed back by associated stations of the first access point, and receiving second interference power parameters sent by a second access point; if determining that a channel on which the first access point works is currently being occupied by the second access point, determining to-be-scheduled stations and transmission powers of the first access point for the to-be-scheduled stations, sending scheduling indication signaling at the determined transmission powers, and receiving scheduling indication response signaling sent by a schedulable station; and sending a data frame to the schedulable station at a transmission power corresponding to the schedulable station among the determined transmission powers.
Abstract translation: 本发明提供一种数据帧发送和接收方法和装置。 数据帧发送方法包括：由第一接入点接收由第一接入点的相关联的站反馈的第一干扰功率参数，以及接收由第二接入点发送的第二干扰功率参数; 如果确定第一接入点工作的信道当前正在被第二接入点占用，则确定待调度的站和对待调度的站的第一接入点的发射功率，发送调度指示信令 并且接收由可调度站发送的调度指示响应信令; 以及在所确定的发射功率中，以对应于所述可调度台的发射功率向所述可调度台发送数据帧。
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公开(公告)号：US09363037B2
公开(公告)日：2016-06-07
申请号：US14741001
申请日：2015-06-16
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0009 , H04B7/0417 , H04L1/0003 , H04L1/0025 , H04L1/0028 , H04L1/0643 , H04L1/0681
Abstract: Embodiments of the present disclosure provide a link adaptation feedback method, including: receiving, by a device, a link adaptation feedback frame sent by a communication peer end, where the link adaptation feedback frame includes a modulation and coding scheme request sequence identifier (MSI), where the MSI is configured to indicate space-time block coding type information.
Abstract translation: 本公开的实施例提供一种链路自适应反馈方法，包括：由设备接收由通信对端发送的链路自适应反馈帧，其中链路自适应反馈帧包括调制和编码方案请求序列标识符（MSI） ，其中MSI被配置为指示空时块编码类型信息。
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公开(公告)号：US20160105536A1
公开(公告)日：2016-04-14
申请号：US14972989
申请日：2015-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yalin Liu , Jiayin Zhang , Yi Luo
CPC classification number: H04L69/22 , H04L5/005 , H04L25/0202 , H04L25/0226 , H04L27/2613 , H04W72/04
Abstract: A data transmission method includes determining, by a transmitting device, a long training sequence set, where the long training sequence set includes a plurality of long training sequences. The method also includes determining a mapping relationship between each long training sequence in the long training sequence set and first sub-identity information in identity information of each receiving device in a communications system. When data needs to be transmitted to a target receiving device, the method includes selecting a target long training sequence from the long training sequence set according to first sub-identity information of the target receiving device and the mapping relationship. The method includes performing encapsulation processing on the data according to the target long training sequence to generate a data packet, so as to carry the target long training sequence in the data packet. The method includes sending the data packet to the target receiving device.
Abstract translation: 一种数据传输方法包括由发送装置确定长训练序列集，其中长训练序列集合包括多个长训练序列。 该方法还包括确定长训练序列集中的每个长训练序列与通信系统中每个接收装置的身份信息中的第一子身份信息之间的映射关系。 当数据需要发送到目标接收装置时，该方法包括根据目标接收装置的第一子标识信息和映射关系从长训练序列集中选择目标长训练序列。 该方法包括根据目标长训练序列对数据执行封装处理，以生成数据分组，以便在数据分组中携带目标长训练序列。 该方法包括将数据分组发送到目标接收设备。
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