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公开(公告)号：EP3086621A4
公开(公告)日：2017-01-25
申请号：EP14882387
申请日：2014-02-11
申请人： HUAWEI TECH CO LTD
发明人： LI YUNBO , ZHANG JIAYIN , LUO YI
CPC分类号： H04W72/044 , H04W74/04 , H04W84/12
摘要： Embodiments of the present invention provide a data transmission processing method and apparatus. The data transmission processing method in the present invention includes: successfully reserving, by a first station, a time-frequency resource; and allocating, by the first station, at least a partial time-frequency resource of the time-frequency resource to a third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station is a non-associated neighboring station of the first station. In the embodiments of the present invention, it is implemented that the third station can share, with the first station, the time-frequency resource reserved by the first station. Therefore, system transmission efficiency is improved.
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公开(公告)号：EP3079433A4
公开(公告)日：2016-11-23
申请号：EP14879783
申请日：2014-01-27
申请人： HUAWEI TECH CO LTD
CPC分类号： H04W74/0816 , H04W72/121 , H04W84/12 , H04W88/08
摘要： The present invention 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 invention, 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：EP2963840A4
公开(公告)日：2016-03-02
申请号：EP13884902
申请日：2013-12-06
申请人： HUAWEI TECH CO LTD
IPC分类号： H04B7/02
CPC分类号： H04B7/0626 , H04B7/0617 , H04B7/0619 , H04B7/0621
摘要： The present invention provides a method and a device for channel information feedback, where the method includes: obtaining, by a beamformer, channel feedback information, where the channel feedback information includes: channel information related to the beamformer and channel information related to other beamformer; the channel information includes: channel information fed back by a beamformee in a same basic service set and channel information fed back by a beamformee in a different basic service set. Channel feedback of multiple sending ends is achieved in the present invention.
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公开(公告)号：EP2945455A4
公开(公告)日：2015-12-30
申请号：EP13874761
申请日：2013-09-22
申请人： HUAWEI TECH CO LTD
CPC分类号： H04W72/1284 , H04L5/0007 , H04W28/20 , H04W74/006 , H04W74/08 , H04W84/12
摘要： Embodiments of the present invention provide a data transmission method, apparatus and system. The method includes: receiving an RTS frame sent by a legacy STA on a channel including a primary channel, and sending an indicating frame to the legacy STA and a new station, for enabling the legacy STA to send data on the channel including the primary channel according to the indicating frame, and enabling the new station to send data on a secondary channel not occupied by the legacy STA according to the indicating frame. By adopting the data transmission method, apparatus and system provided by the embodiments of the present invention, uplink OFDMA data transmission under a compatible mode is achieved, and the problem of bandwidth waste caused by data transmission of the legacy STA is solved.
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5.发明公开FRAME TRANSMISSION METHOD AND DEVICE FOR WIRELESS LOCAL AREA NETWORK 审中-公开FRAMEÜBERTRAGUNGSVERFAHRENUND -VORRICHTUNGFÜRWLAN
公开(公告)号：EP3182753A4
公开(公告)日：2017-08-09
申请号：EP14903151
申请日：2014-09-30
申请人： HUAWEI TECH CO LTD
发明人： LIU LE , LUO YI , MONTORSI GUIDO , BENEDETTO SERGIO
CPC分类号： H04W28/065 , H04L27/2607 , H04L27/2613 , H04W84/12
摘要： Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.
摘要翻译： 本发明实施例公开了一种无线局域网的帧传输方法和无线局域网装置，涉及通信技术领域。 根据本发明，在WLAN中的帧传输过程中，接收无线局域网WLAN设备发送的帧，并且通过检测帧中包括的用户公共信号字段来识别特定标准的帧， 实现了WLAN设备的后向兼容，支持不同制式的WLAN设备的混合组网，提高了网络部署的灵活性，降低了组网的复杂度。
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公开(公告)号：EP3163970A4
公开(公告)日：2017-07-12
申请号：EP14898532
申请日：2014-12-31
申请人： HUAWEI TECH CO LTD
CPC分类号： H04L5/0023 , H04B1/707 , H04L25/0204 , H04L27/2634 , H04W84/12
摘要： The present invention discloses a transmission device and a method for transmitting a data frame, which relate to the communications field, reduce signaling overheads, and reduce a delay in reception of a data field. A specific solution is: an acquiring unit acquires LTF parameters, and acquires a start position I of allocated subcarriers, where the LTF parameters include a frequency domain transform parameter and a time domain transform parameter that are required for generating an LTF sequence; a frequency domain transform unit performs, according to the frequency domain transform parameter and the start position I, a frequency domain transform on an LTF basic sequence to obtain an LTF symbol; a time domain transform unit performs, according to the time domain transform parameter, a time domain transform on the LTF symbol to obtain the LTF sequence; and a sending unit adds the LTF sequence to a first data frame, and sends the first data frame to a second device, so that the second device determines the LTF basic sequence according to the LTF sequence and performs channel estimation according to the LTF basic sequence. The present invention is used in a transmission process of a data frame.
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公开(公告)号：EP3065349A4
公开(公告)日：2017-01-25
申请号：EP14880753
申请日：2014-01-28
申请人： HUAWEI TECH CO LTD
发明人： LUO YI , LI YUNBO , ZHANG LIANBO
CPC分类号： H04L12/6418 , H04W24/08 , H04W74/0833
摘要： The present invention provides a data transmission method. In the method of the present invention, a station receives an indication frame sent by an access point, where the indication frame is used for allocating a designated random contention channel; a channel state of the designated random contention channel is sensed according to the indication frame; and the station sends data on the designated random contention channel after it is detected that the designated random contention channel is in an idle state. Because in the method of the present invention, a designated random contention channel is allocated to a station, the station can send data on the designated random contention channel, contention among stations is reduced and a time for a station to be connected to a random contention channel is reduced.
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公开(公告)号：EP2991283A4
公开(公告)日：2016-07-27
申请号：EP13888182
申请日：2013-06-27
申请人： HUAWEI TECH CO LTD
发明人： LIU YALIN , ZHANG JIAYIN , LUO YI
CPC分类号： H04L5/0048 , H04L5/005 , H04L23/02 , H04L25/0226 , H04L27/2613
摘要： A data transmission method and apparatus are provided, which can reduce burden of a receiving device, reduce waste of hardware resources, and improve user experience. The method includes: determining, by a transmitting device, a long training sequence set; determining at least one receiving device set, where the receiving device set includes at least one receiving device in a communications system; determining a first mapping relationship, where the first mapping relationship is a mapping relationship between the at least one receiving device set and at least one set-use long training sequence in the long training sequence set; determining, according to a target receiving device set and the first mapping relationship, a target set-use long training sequence corresponding to the target receiving device set, and performing encapsulation processing on first data to generate a first data packet, where a long training sequence field in a physical layer of the first data packet carries a first long training sequence symbol, where the first long training sequence symbol is used to indicate the target set-use long training sequence; and transmitting the first data packet.
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公开(公告)号：EP3002987A4
公开(公告)日：2016-06-22
申请号：EP13887752
申请日：2013-06-29
申请人： HUAWEI TECH CO LTD
CPC分类号： H04W74/006 , H04L5/0053 , H04L5/0092 , H04W48/16
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10.发明公开METHOD AND DEVICE FOR PRE-CODING, AND METHOD AND DEVICE FOR DECODING 有权VORKODIERUNGSVERFAHREN和设备以及解码方法和装置
公开(公告)号：EP2515450A4
公开(公告)日：2013-01-30
申请号：EP10837058
申请日：2010-12-18
申请人： HUAWEI TECH CO LTD
CPC分类号： H04B7/0413 , H04B7/0465 , H04L25/03343
摘要： The present invention relates to the field of wireless communications technologies, and discloses a method and device for pre-coding and a method and device for decoding. The present invention implements an interference alignment method with excellent performance, can effectively increase the capacity of a multi-user interference system and reduce the mutual interference among users, The method for pre-coding includes: calculating a pre-coding matrix for each transmitting end according to a sum of mean square errors of data vectors to be transmitted by each transmitting ends; and using the pre-coding matrix to pre-code the data to be transmitted by each transmitting end. The present invention has broad application prospects, for example, can be used in LTE and LTE-Advanced CoMP technology.
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