TECHNIQUES TO SYNCHRONIZE RADIO ACCESS TECHNOLOGIES FOR CO-CHANNEL OPERATION

    公开(公告)号:WO2020191012A1

    公开(公告)日:2020-09-24

    申请号:PCT/US2020/023287

    申请日:2020-03-18

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device that uses a first radio access technology (RAT) may identify a transmission timing scheme for a shared radio frequency spectrum band, the transmission timing scheme comprising a first set of time intervals allocated for transmissions using a first RAT and a second set of time intervals allocated for transmissions using a second RAT. The wireless device may transmit, during a time interval of the first set of time intervals, a channel reservation signal indicating an end time of the time interval and indicating that the wireless device uses the first RAT. The wireless device may transmit, based at least in part on the transmitted channel reservation signal, over the shared radio frequency spectrum band during at least a portion of the time interval before the end time of the time interval.

    TECHNIQUES FOR MANAGING A PLURALITY OF RADIO ACCESS TECHNOLOGIES ACCESSING A SHARED RADIO FREQUENCY SPECTRUM BAND
    32.
    发明申请
    TECHNIQUES FOR MANAGING A PLURALITY OF RADIO ACCESS TECHNOLOGIES ACCESSING A SHARED RADIO FREQUENCY SPECTRUM BAND 审中-公开
    管理无线电接入技术的无线电接入技术的技术访问共享无线电频谱带

    公开(公告)号:WO2016130684A1

    公开(公告)日:2016-08-18

    申请号:PCT/US2016/017359

    申请日:2016-02-10

    Abstract: Techniques are described for wireless communication. A first method includes sensing an indication of first radio access technology (RAT) communications occupying a shared radio frequency spectrum band; and configuring, in response to the sensing, at least one parameter of a second RAT used by a device to contend for access to the band. A second method includes randomly selecting a number from a range of numbers extending between a lower bound and an upper bound; contending for access to a shared radio frequency spectrum band by performing an extended clear channel assessment (ECCA) procedure over a plurality of CCA slots, the plurality of CCA slots including a first number of CCA slots equal to the upper bound; and winning contention for access to the band after determining, while performing the ECCA procedure, that the band is available for a second number of CCA slots equal to the randomly selected number.

    Abstract translation: 技术描述为无线通信。 第一种方法包括感测占用共享射频频带的第一无线电接入技术(RAT)通信的指示; 以及响应于所述感测,配置由设备用于竞争接入所述频带的第二RAT的至少一个参数。 第二种方法包括从在下限和上限之间延伸的数字范围中随机选择数字; 竞争通过在多个CCA时隙上执行扩展清除信道评估(ECCA)过程来访问共享射频频带,所述多个CCA时隙包括等于上限的第一数量的CCA时隙; 以及在执行ECCA过程之后确定该频带可用于等于随机选择的数量的第二数量的CCA时隙的情况下,获得对该频带的访问的争用。

    TECHNIQUES TO SYNCHRONIZE RADIO ACCESS TECHNOLOGIES FOR CO-CHANNEL OPERATION

    公开(公告)号:EP4380282A2

    公开(公告)日:2024-06-05

    申请号:EP24170672.0

    申请日:2020-03-18

    CPC classification number: H04W16/14 H04W74/0816 H04W72/1215

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device that uses a first radio access technology (RAT) may identify a transmission timing scheme for a shared radio frequency spectrum band, the transmission timing scheme comprising a first set of time intervals allocated for transmissions using a first RAT and a second set of time intervals allocated for transmissions using a second RAT. The wireless device may transmit, during a time interval of the first set of time intervals, a channel reservation signal indicating an end time of the time interval and indicating that the wireless device uses the first RAT. The wireless device may transmit, based at least in part on the transmitted channel reservation signal, over the shared radio frequency spectrum band during at least a portion of the time interval before the end time of the time interval.

    COMPENSATION FOR EXCESS TRANSMISSION OPPORTUNITY TIME
    34.
    发明公开
    COMPENSATION FOR EXCESS TRANSMISSION OPPORTUNITY TIME 审中-公开
    过度传输机会时间的补偿

    公开(公告)号:EP3320746A1

    公开(公告)日:2018-05-16

    申请号:EP16745885.0

    申请日:2016-06-21

    CPC classification number: H04W72/0446 H04W74/08 H04W74/0816 H04W84/12

    Abstract: Methods, systems, and devices are described for efficient use of transmit opportunities (TXOPs) through adjustment of contention window backoff time values to compensate for one or more TXOPs that may exceed a TXOP limit. A contention window value may be increased, for example, to provide other devices in the network with a fair opportunity for network access based at least in part on one or more TXOPs that exceed the TXOP limit. Allowing one or more transmissions to exceed a TXOP limit may provide enhanced efficiency as compared to having multiple transmissions.

    CLEAR CHANNEL ASSESSMENT PROCEDURE AT MASTER AND SLAVE DEVICES
    35.
    发明公开
    CLEAR CHANNEL ASSESSMENT PROCEDURE AT MASTER AND SLAVE DEVICES 审中-公开
    主从设备清除信道评估程序

    公开(公告)号:EP3298853A1

    公开(公告)日:2018-03-28

    申请号:EP16727572.6

    申请日:2016-05-13

    CPC classification number: H04W74/08 H04W72/0446 H04W72/1289 H04W84/20

    Abstract: In order to provide a generic access rule, the present disclosure proposes a new potential set of adaptivity rules for LBE based on LBT. The generic access rule of the present disclosure provides LTE-U and Wi-Fi coexistence and DL/UL coexistence in both LTE-U and Wi-Fi. The apparatus receives, from the first master device, a resource allocation for communicating with the second master device. The apparatus also determines a type of CCA procedure to perform before communicating with the second master device on an unlicensed channel. The apparatus further performs a CCA procedure to obtain a transmission opportunity based on the determining, the CCA procedure being one of an ICCA procedure or an ECCA procedure. In addition, the apparatus transmit data to the second master device in accordance with the resource allocation on the unlicensed channel when the transmission opportunity is obtained.

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