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    TIMING ADVANCE TECHNIQUES FOR LARGE CELLS
    4.
    发明申请
    TIMING ADVANCE TECHNIQUES FOR LARGE CELLS 有权
    大型细胞的时序预测技术

    公开(公告)号：US20150334707A1

    公开(公告)日：2015-11-19

    申请号：US14705296

    申请日：2015-05-06

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatraman Rajagopalan ,  Srikant Jayaraman ,  Ruoheng Liu ,  Rajakumar Ebenezar Devairakkam

    IPC: H04W72/04 ,  H04L5/14

    CPC classification number: H04L5/14 ,  H04B7/18506 ,  H04L5/1469 ,  H04W56/004 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/12

    Abstract: Methods, systems, and devices are described for implementing timing advances in which a propagation delay may exceed a time period of a portion of a radio frame. In some examples, a transmitter may identify a timing advance indicating a time to initiate wireless uplink transmission of a subframe. Such a timing advance may compensate for a propagation delay between the transmitter and a receiver of the wireless uplink transmission. The timing advance may be applied as an integer component and a fractional component in relation to a duration of the subframe, to adjust the time to initiate the wireless uplink transmission of the subframe. The integer component may be used to adjust one or more subframe characteristics, and the fractional component that may be used to adjust the time to initiate the wireless uplink transmission of the subframe.

    Abstract translation: 描述了用于实现传播延迟可能超过无线电帧的一部分的时间段的定时进展的方法，系统和设备。 在一些示例中，发射机可以识别指示发起子帧的无线上行链路传输的时间的定时提前。 这样的定时提前可以补偿无线上行链路传输的发射机和接收机之间的传播延迟。 定时提前可以作为与子帧的持续时间有关的整数分量和小数分量来应用，以调整发起子帧的无线上行链路传输的时间。 整数分量可以用于调整一个或多个子帧特性，以及可用于调整发起子帧的无线上行链路传输的时间的分数分量。

    ENHANCED RANDOM ACCESS PROCEDURE FOR AIR-TO-GROUND COMMUNICATIONS
    5.
    发明申请
    ENHANCED RANDOM ACCESS PROCEDURE FOR AIR-TO-GROUND COMMUNICATIONS 有权
    加强空中接地通信的随机访问程序

    公开(公告)号：US20150181544A1

    公开(公告)日：2015-06-25

    申请号：US14265123

    申请日：2014-04-29

    Applicant: QUALCOMM Incorporated

    Inventor： Ruoheng Liu ,  June Namgoong ,  Hai Le ,  Srikant Jayaraman ,  Sunil Kamavaram ,  Rajakumar Ebenezar Devairakkam ,  Venkatraman Rajagopalan

    IPC: H04W56/00 ,  H04W74/08

    CPC classification number: H04W56/004 ,  H04B7/18506 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0833

    Abstract: Methods, systems, and devices are described for establishing a wireless communications link at an aircraft terminal (AT). An AT may determine a timing offset based on the propagation delay between the AT and a ground station, which in some cases may be more than 100 kilometers away. The AT may then transmit an initial access message to the ground station based on the determined timing offset. In some embodiments, the AT may receive an access response message from the ground station that includes a timing alignment value and adjust the timing offset based on this value. The AT may transmit a connection message to the ground station that includes AT location information. This information may be used by the ground station to facilitate beamforming.

    Abstract translation: 描述了用于在飞行器终端（AT）建立无线通信链路的方法，系统和设备。 AT可以基于AT和地面站之间的传播延迟来确定定时偏移，在某些情况下，这可能超过100公里。 然后，AT可以基于所确定的定时偏移将初始接入消息发送到地面站。 在一些实施例中，AT可以从地面站接收包括定时对准值的访问响应消息，并且基于该值调整定时偏移。 AT可以向包括AT位置信息的地面站发送连接消息。 该信息可以由地面站使用以促进波束成形。

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