Enhanced Channel Access Mechanisms for Wide Band Operation on Unlicensed Bands

    公开(公告)号:US20190110318A1

    公开(公告)日:2019-04-11

    申请号:US16213647

    申请日:2018-12-07

    Abstract: A method for dynamically dividing or consolidating sub-bands in-between Clear Channel Assessment (CCA) status measurements upon detection of a CCA bandwidth adjustment condition is provided. The method includes determining at least a single CCA status for at least a single sub-band during a first period, and detecting a CCA bandwidth adjustment condition for dividing the single sub-band into two or more separate sub-bands, where a combination of the two or more separate sub-bands occupies the same frequency band as the single sub-band. The method also includes determining a separate CCA status for each of the two or more separate sub-bands during a second period. An apparatus for performing this method is also provided.

    Data transmission method and apparatus

    公开(公告)号:US09882754B2

    公开(公告)日:2018-01-30

    申请号:US15235484

    申请日:2016-08-12

    CPC classification number: H04L27/2602 H04L27/2614 H04W84/12

    Abstract: A data transmission method and apparatus are provided, which can improve a throughput rate of a system, and improve data transmission performance and user experience. The method comprises determining a target bit sequence. In the system state, a peak-to-average power ratio PAPR corresponding to the target bit sequence is less than a PAPR that corresponds to a bit sequence corresponding to the data length of the target data. The method comprises adding the target bit sequence to length bits that are in a legacy signal field of a target preamble, and performing transmit power enhancement processing on a legacy short training field, a legacy long training field, and the legacy signal field that are in the target preamble according to the transmit power amplification limit.

    SIGNAL TRANSMISSION METHOD AND APPARATUS
    36.
    发明申请
    SIGNAL TRANSMISSION METHOD AND APPARATUS 审中-公开
    信号传输方法和设备

    公开(公告)号:US20170019287A1

    公开(公告)日:2017-01-19

    申请号:US15280016

    申请日:2016-09-29

    Abstract: Embodiments of the present invention provide a signal transmission method and apparatus, which can implement fast initial time synchronization. The method includes: generating, by a transmit-end device, an initial short training sequence, where the initial short training sequence includes M sub-sequences b, and the sub-sequence b includes N transmission sampling points; determining a quantity of reception sampling points used by a receive-end device when the receive-end device performs autocorrelation processing; generating a symbol sequence according to the quantity of the reception sampling points, and generating a target short training sequence according to the symbol sequence and the initial short training sequence; and sending a target signal to the receive-end device, where a short training sequence field of the target signal carries a short training sequence symbol, and the short training sequence symbol is used to indicate the target short training sequence.

    Abstract translation: 本发明的实施例提供了一种能够实现快速初始时间同步的信号传输方法和装置。 该方法包括:通过发送端设备生成初始短训练序列,其中初始短训练序列包括M个子序列b,子序列b包括N个传输采样点; 当接收端设备执行自相关处理时,确定接收端设备使用的接收采样点的数量; 根据接收采样点的数量生成符号序列,根据符号序列和初始短训练序列生成目标短训练序列; 并向所述接收端装置发送目标信号,其中,所述目标信号的短训练序列字段携带短训练序列符号,并且所述短训练序列符号用于指示所述目标短训练序列。

    DATA TRANSMISSION METHOD AND COMMUNICATIONS DEVICE
    37.
    发明申请
    DATA TRANSMISSION METHOD AND COMMUNICATIONS DEVICE 审中-公开
    数据传输方法和通信设备

    公开(公告)号:US20160338115A1

    公开(公告)日:2016-11-17

    申请号:US15221241

    申请日:2016-07-27

    Abstract: The present invention provides a data transmission method and a communications device. The communications device includes: a transceiver, configured to send a transmission frame to a second communications device, so that the second communications device acquires data information in the transmission frame, where the transmission frame includes a first part and a second part, the transceiver sends the first part of the transmission frame by using a first quantity of subcarriers, the transceiver sends the second part of the transmission frame by using a second quantity of subcarriers, and the first quantity is not equal to the second quantity; and the transceiver, further configured to perform a next time of information transmission with the second communications device. A throughput can be effectively increased.

    Abstract translation: 本发明提供了一种数据传输方法和通信设备。 通信设备包括:收发器,被配置为向第二通信设备发送传输帧,使得第二通信设备获取传输帧中的数据信息,其中传输帧包括第一部分和第二部分,收发器发送 通过使用第一数量的子载波来传输帧的第一部分,收发机通过使用第二数量的子载波来发送传输帧的第二部分,并且第一数量不等于第二数量; 以及所述收发器,还被配置为执行与所述第二通信设备的下一次信息传输。 可以有效地提高吞吐量。

    Method and device for managing channel occupancy duration of unlicensed frequency band

    公开(公告)号:US12200764B2

    公开(公告)日:2025-01-14

    申请号:US17695332

    申请日:2022-03-15

    Abstract: This application discloses a wireless communication method, including: receiving, by a network device, uplink transmission of a first terminal in first duration of channel occupancy duration of the first terminal, where the channel occupancy duration of the first terminal further includes second duration, and the second duration is later than the first duration; and performing, by the network device, downlink transmission in the second duration, where a sum of the first duration and the second duration is less than or equal to the channel occupancy duration of the first terminal. This application further discloses a network device and a terminal that correspond to the wireless communication method. By applying the method and devices, a resource obtained through contention by a terminal applied to an unlicensed frequency band can be properly used, to improve operating efficiency of the unlicensed frequency band.

    Data transmission method, network device, and terminal device

    公开(公告)号:US12199925B2

    公开(公告)日:2025-01-14

    申请号:US18187358

    申请日:2023-03-21

    Inventor: Qiong Jia Jun Zhu

    Abstract: Embodiments of this application provide a data transmission method, a network device, and a terminal device. The method includes: A network device sends resource indication information to a terminal device, so that the terminal device determines, based on the resource indication information, a resource allocated by the network device. The resource indication information is used to indicate location information of a resource in at least one BWP in a system bandwidth and bandwidth information of the at least one BWP. Further, the network device receives, on a resource corresponding to the resource indication information, uplink data sent by the terminal device. It can be learned that, in the embodiments, the network device may indicate a system bandwidth of any size and/or a resource in any BWP in the system bandwidth to the terminal device, so that the terminal device can perform data transmission on the indicated resource.

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