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    INTER-FRAME SPACING ADAPTATION FOR YIELDING TO DSRC OPERATION
    21.
    发明申请
    INTER-FRAME SPACING ADAPTATION FOR YIELDING TO DSRC OPERATION 有权
    用于DSRC操作的框架间距适配

    公开(公告)号：US20140370809A1

    公开(公告)日：2014-12-18

    申请号：US13920638

    申请日：2013-06-18

    Applicant: QUALCOMM Incorporated

    Inventor： Jubin Jose ,  Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li

    IPC: H04W4/00 ,  H04W74/04

    CPC classification number: H04W4/80 ,  H04W16/14 ,  H04W74/0816 ,  H04W84/10 ,  H04W88/06

    Abstract: Methods, systems, and devices are described for adapting access timing parameters when using DSRC spectrum. A multi-mode device may adapt at least one access timing parameter while operating within the DSRC spectrum. The at least one access timing parameter may be adapted to provide priority to transmissions of DSRC devices using the DSRC spectrum. The multi-mode device may increase a duration of a short inter-frame spacing (SIFS) to be at least equal to a duration of a SIFS used by a DSRC device.

    Abstract translation: 描述了在使用DSRC频谱时适应接入定时参数的方法，系统和设备。 多模式设备可以在DSRC频谱内工作时适应至少一个接入定时参数。 所述至少一个访问定时参数可以适于使用DSRC频谱来提供对DSRC设备的传输的优先级。 多模式设备可以将短帧间距（SIFS）的持续时间增加至少等于DSRC设备使用的SIFS的持续时间。

    OPPORTUNISTIC INTERFERENCE ALIGNMENT FOR MULTI-CELL MULTI-USER UPLINK
    22.
    发明申请
    OPPORTUNISTIC INTERFERENCE ALIGNMENT FOR MULTI-CELL MULTI-USER UPLINK 有权
    多单元多用户上行链路的机会干扰对齐

    公开(公告)号：US20140204773A1

    公开(公告)日：2014-07-24

    申请号：US13747601

    申请日：2013-01-23

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jubin Jose ,  Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li

    IPC: H04W72/08

    CPC classification number: H04W72/082 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0617

    Abstract: A UE receives information indicating a receive direction vector for a serving BS and a set of receive direction vectors for at least one interfering BS. The UE determines a channel between the UE and the serving BS and a set of channels between the UE and each of the at least one interfering BS. The UE determines a transmit direction vector to apply to modulated symbols for mapping to a set of resource blocks for an uplink transmission based on the channel, the set of channels, the receive direction vector, and the set of receive direction vectors. The UE determines an interference caused to the at least one interfering BS by the uplink transmission based on the transmit direction vector, the set of channels, and the set of receive direction vectors. The UE transmits information indicating the interference to the serving BS.

    Abstract translation: UE接收指示用于服务BS的接收方向向量的信息和用于至少一个干扰BS的一组接收方向向量。 UE确定UE与服务BS之间的信道以及UE与至少一个干扰BS中的每一个之间的一组信道。 UE基于信道，信道集合，接收方向向量和接收方向向量集合，确定应用于调制符号的发射方向矢量以映射到上行链路传输的一组资源块。 UE基于发送方向向量，信道集合和接收方向向量集，确定通过上行链路传输对至少一个干扰BS造成的干扰。 UE向服务BS发送指示干扰的信息。

    Adaptive triggering of RTT ranging for enhanced position accuracy
    26.
    发明授权
    Adaptive triggering of RTT ranging for enhanced position accuracy 有权

    公开(公告)号：US10536805B2

    公开(公告)日：2020-01-14

    申请号：US16200390

    申请日：2018-11-26

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatesan Nallampatti Ekambaram ,  Urs Niesen ,  Jubin Jose ,  Xinzhou Wu

    IPC: H04W4/02 ,  H04W24/08 ,  H04W28/02 ,  H04W64/00 ,  G01S7/40 ,  G01S13/74 ,  H04W4/40

    Abstract: A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.

    Fast recovery from incorrect carrier phase integer locking
    27.
    发明授权
    Fast recovery from incorrect carrier phase integer locking 有权

    公开(公告)号：US10274607B2

    公开(公告)日：2019-04-30

    申请号：US15264460

    申请日：2016-09-13

    Applicant: QUALCOMM Incorporated

    Inventor： Urs Niesen ,  Lionel Jacques Garin ,  Jubin Jose

    IPC: G01S19/44 ,  G01S19/23 ,  G01S19/42

    Abstract: Determining a position of a device using a signal received from a reference emitter includes: receiving the signal; determining a state of a first filter, the state of the first filter including a first carrier phase ambiguity estimate that includes a floating value; determining a state of a second filter, the state of the second filter including a second carrier phase ambiguity estimate that includes a fixed value; determining whether the state of the second filter is consistent with one other filter state or measurement; maintaining the state of the second filter in response to the device determining that the state of the second filter is consistent with the other filter state; changing the state of the second filter to the state of the first filter in response to the device determining that the state of the second filter is not consistent with the other filter state.

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