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    DATA COMMUNICATION METHOD AND RELATED APPARATUS
    3.
    发明公开
    DATA COMMUNICATION METHOD AND RELATED APPARATUS 审中-公开

    公开(公告)号：EP3512109A1

    公开(公告)日：2019-07-17

    申请号：EP18199812.1

    申请日：2014-09-25

    申请人： Huawei Technologies Co., Ltd.

    发明人： WANG, Ningjuan ,  XUE, Xin ,  YAN, Min ,  YU, Jian

    IPC分类号： H04B7/00 ,  H04W56/00

    摘要： A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, 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; and broadcasting, by the access device, 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. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

    DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK
    7.
    发明公开
    DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK 审中-公开

    公开(公告)号：EP3952235A1

    公开(公告)日：2022-02-09

    申请号：EP21182080.8

    申请日：2016-11-23

    申请人： Huawei Technologies Co., Ltd.

    发明人： LIN, Wei ,  XUE, Xin ,  WANG, Ningjuan ,  LIU, Le

    IPC分类号： H04L25/02 ,  H04L27/26 ,  H04W84/12 ,  H04B7/0452

    摘要： An HE-LTF transmission method is provided, including: determining, based on a total number N STS of space-time streams, a number N HELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number N HELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

    DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK
    9.
    发明公开
    DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK 审中-公开

    公开(公告)号：EP3681113A1

    公开(公告)日：2020-07-15

    申请号：EP19195775.2

    申请日：2016-11-23

    申请人： Huawei Technologies Co., Ltd.

    发明人： LIN, Wei ,  XUE, Xin ,  WANG, Ningjuan ,  LIU, Le

    IPC分类号： H04L25/02 ,  H04L27/26 ,  H04W84/12 ,  H04B7/0452

    摘要： An HE-LTF transmission method is provided, including: determining, based on a total number N STS of space-time streams, a number N HELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number N HELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

    METHOD AND COMMUNICATION APPARATUS FOR AUTOMATIC GAIN CONTROL IN WIRELESS LOCAL AREA NETWORK
    10.
    发明公开
    METHOD AND COMMUNICATION APPARATUS FOR AUTOMATIC GAIN CONTROL IN WIRELESS LOCAL AREA NETWORK 审中-公开
    用于无线局域网中自动增益控制的方法和通信装置

    公开(公告)号：EP3214812A1

    公开(公告)日：2017-09-06

    申请号：EP14905877.8

    申请日：2014-11-14

    申请人： Huawei Technologies Co. Ltd.

    发明人： LIU, Yalin ,  LIU, Sheng ,  YAN, Min ,  XUE, Xin

    IPC分类号： H04L27/26

    CPC分类号： H04W52/52 ,  H03G3/3078 ,  H04B17/318 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2678 ,  H04L69/22 ,  H04L69/323 ,  H04W84/12

    摘要： The present invention discloses an automatic gain control method and a communications device in a wireless local area network. The method includes: generating a physical layer packet, where the physical layer packet includes a high efficiency long training field, the high efficiency long training field includes N symbols, a length of a cyclic prefix CP of a first symbol in the N symbols is greater than or equal to a minimum length required by a receiver device to perform automatic gain control AGC estimation, and N is a positive integer; and sending the physical layer packet to the receiver device. System overheads can be reduced according to embodiments of the present invention.

    摘要翻译： 本发明公开了一种无线局域网中的自动增益控制方法和通信设备。 所述方法包括：生成物理层分组，所述物理层分组包括高效长训练字段，所述高效长训练字段包括N个符号，所述N个符号中的第一符号的循环前缀CP的长度大于 大于或等于接收机设备执行自动增益控制AGC估计所需的最小长度，并且N是正整数; 并将物理层分组发送给接收机设备。 根据本发明的实施例可以减少系统开销。