COLLISION DETECTION IN A SHARED RADIO FREQUENCY SPECTRUM BAND

    公开(公告)号:US20170111931A1

    公开(公告)日:2017-04-20

    申请号:US15246005

    申请日:2016-08-24

    Abstract: Detection and reporting techniques for collisions between transmitters of two different radio access technologies (RATs) transmitting in a shared radio frequency spectrum band is described. The collision may occur following a listen-before-talk procedure but prior to transmission of data, and may not affect the reception of the transmitted data. Collisions may be detected using for example, energy sensing, preamble or ready-to-send (RTS) signal detection, or unsuccessful decoding of all or part of a channel reservation signal. A transmitting device may determine a collision has occurred by detecting an energy level during a preamble transmission is greater than a threshold level or by detecting that an energy level during a transmission gap of a time-domain energy pattern is above a threshold level. A receiving device, such as a user equipment (UE), that detects the collision may report the collision to the transmitter.

    ACK/NACK transmission for multi-carrier operation
    495.
    发明授权
    ACK/NACK transmission for multi-carrier operation 有权
    用于多载波操作的ACK / NACK传输

    公开(公告)号:US09591662B2

    公开(公告)日:2017-03-07

    申请号:US14792283

    申请日:2015-07-06

    Abstract: Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In some aspects, a user equipment (UE) receives a data transmission on at least one component carrier (CC) in a plurality of configured CCs. The UE determines acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission and determines an uplink channel for sending the ACK/NACK information. When the ACK/NACK information is sent on a PUCCH, the UE may perform power control based on which CCs in the plurality of configured CCs data is received. When the ACK/NACK information is sent on a PUSCH, the UE may determine a number of resource elements based on its CC configuration.

    Abstract translation: 公开了一种在多载波无线通信网络中确认数据传输的技术。 在一些方面,用户设备(UE)在多个配置的CC中的至少一个分量载波(CC)上接收数据传输。 UE确定用于数据传输的确认/否定确认(ACK / NACK)信息,并确定用于发送ACK / NACK信息的上行链路信道。 当在PUCCH上发送ACK / NACK信息时,UE可以基于接收到多个配置的CC中的哪个CC来执行功率控制。 当在PUSCH上发送ACK / NACK信息时,UE可以基于其CC配置来确定多个资源元素。

    Techniques for controlling transmission power in shared radio frequency spectrum
    496.
    发明授权
    Techniques for controlling transmission power in shared radio frequency spectrum 有权
    用于控制共享射频频谱中发射功率的技术

    公开(公告)号:US09585103B2

    公开(公告)日:2017-02-28

    申请号:US14603839

    申请日:2015-01-23

    Abstract: Certain aspects of the present disclosure provide techniques for controlling transmission power in shared radio frequency spectrum (SRFS). According to techniques, devices (e.g., BSs, UEs, etc.) transmitting in SRFS band may win contention to the SRFS band for at least a portion of a radio frame period. For example, the radio frame period may include a plurality of subframe periods. The devices may also transmit a first signal at a first transmit power during a first subframe period of the radio frame period and transmit a second signal at a second transmit power during a second subframe period of the radio frame period. For example, the first transmit power and second transmit power may be controlled based, at least in part, on a power level determined for the radio frame period.

    Abstract translation: 本公开的某些方面提供了用于控制共享射频(SRFS)中的发射功率的技术。 根据技术,在SRFS频带中发射的设备(例如,BS,UE等)可以在无线电帧周期的至少一部分中赢得对SRFS频带的争用。 例如,无线帧周期可以包括多个子帧周期。 在无线电帧周期的第一子帧周期期间,设备还可以以第一发射功率发送第一信号,并且在无线电帧周期的第二子帧周期期间以第二发射功率发送第二信号。 例如,可以至少部分地基于为无线电帧周期确定的功率电平来控制第一发射功率和第二发射功率。

    FLEXIBLE CODING SCHEMES
    497.
    发明申请
    FLEXIBLE CODING SCHEMES 审中-公开
    灵活编码方案

    公开(公告)号:US20170026976A1

    公开(公告)日:2017-01-26

    申请号:US15175966

    申请日:2016-06-07

    Abstract: Methods, systems, and devices for wireless communication using various coding schemes for data transmission are described. A wireless communication system may support multiple coding schemes such as, for example, turbo codes and low density parity check codes. The system may support selection of the coding scheme based on explicit signaling or implicit evaluation of transmission parameters. A transmitting device may select a coding scheme, encode a message using the selected coding scheme, and transmit the encoded message over a wireless connection. The receiving device may receive the encoded message, select the coding scheme, and decode the message using the select coding scheme.

    Abstract translation: 描述了使用各种用于数据传输的编码方案的用于无线通信的方法,系统和装置。 无线通信系统可以支持多种编码方案,例如turbo码和低密度奇偶校验码。 该系统可以支持基于显式信令或传输参数的隐含评估来选择编码方案。 发送设备可以选择编码方案,使用所选择的编码方案对消息进行编码,并通过无线连接发送编码的消息。 接收设备可以接收编码消息,选择编码方案,并使用选择编码方案对消息进行解码。

    Techniques for enabling asynchronous time division duplexing transmissions in an unlicensed radio frequency spectrum band
    500.
    发明授权
    Techniques for enabling asynchronous time division duplexing transmissions in an unlicensed radio frequency spectrum band 有权
    在未经许可的射频频带中实现异步时分双工传输的技术

    公开(公告)号:US09491752B2

    公开(公告)日:2016-11-08

    申请号:US14573075

    申请日:2014-12-17

    CPC classification number: H04W72/042 H04W16/14 H04W24/08 H04W72/1215

    Abstract: Techniques are described for wireless communication. One method includes monitoring, by a first base station of a first operator, for uplink configuration information and downlink configuration information associated with a second base station of at least one second operator; identifying a transmission timing of one or more uplink transmissions to the second base station of the at least one second operator based at least in part on the uplink configuration information; and prohibiting access to an unlicensed radio frequency spectrum band by the first base station of the first operator during the identified transmission timing of the one or more uplink transmissions. Transmissions of the second base station of the at least one second operator in the unlicensed radio frequency spectrum band may be asynchronous to transmissions of the first base station of the first operator in the unlicensed radio frequency spectrum band.

    Abstract translation: 技术描述为无线通信。 一种方法包括由第一运营商的第一基站监视与至少一个第二运营商的第二基站相关联的上行链路配置信息和下行链路配置信息; 至少部分地基于所述上行链路配置信息来识别对所述至少一个第二运营商的所述第二基站的一个或多个上行链路传输的传输定时; 以及在所述一个或多个上行链路传输的所识别的传输定时期间禁止由所述第一运营商的所述第一基站访问未许可的射频频带。 非许可射频频带中的至少一个第二运营商的第二基站的传输可以与非许可射频频带中的第一运营商的第一基站的传输异步。

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