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    Feedback Based on Codebook Subset
    31.
    发明申请
    Feedback Based on Codebook Subset 审中-公开

    公开(公告)号：US20180367194A1

    公开(公告)日：2018-12-20

    申请号：US16110853

    申请日：2018-08-23

    Applicant: Apple Inc.

    Inventor： Lai King Tee ,  Yi Song ,  Neng Wang

    IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/0452

    CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0695 ,  H04L25/03828

    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.

    System and Method for Supporting Antenna Beamforming in a Cellular Network
    32.
    发明申请
    System and Method for Supporting Antenna Beamforming in a Cellular Network 审中-公开

    公开(公告)号：US20180254818A1

    公开(公告)日：2018-09-06

    申请号：US15969108

    申请日：2018-05-02

    Applicant: Apple Inc.

    Inventor： Yi Song ,  Lai King Tee ,  Jun Li

    IPC: H04B7/06 ,  H04W52/32 ,  H04B7/0408 ,  H04L5/00

    CPC classification number: H04B7/0632 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0695 ,  H04L5/0057 ,  H04W52/325

    Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.

    Feedback Based on Codebook Subset
    34.
    发明申请
    Feedback Based on Codebook Subset 审中-公开

    公开(公告)号：US20180167114A1

    公开(公告)日：2018-06-14

    申请号：US15894154

    申请日：2018-02-12

    Applicant: Apple Inc.

    Inventor： Lai King Tee ,  Yi Song ,  Neng Wang

    IPC: H04B7/0456 ,  H04B7/04 ,  H04L25/03

    CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0695 ,  H04L25/03828

    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.

    Method and System for User Equipment Location Determination on a Wireless Transmission System
    36.
    发明申请
    Method and System for User Equipment Location Determination on a Wireless Transmission System 有权
    无线传输系统用户设备位置确定方法与系统

    公开(公告)号：US20170074971A1

    公开(公告)日：2017-03-16

    申请号：US15241601

    申请日：2016-08-19

    Applicant: Apple Inc.

    Inventor： Lai King Tee ,  Geng Wu ,  Jun Li ,  Yuqiang Tang ,  Neng Wang ,  Hua Xu ,  Jianglei Ma

    IPC: G01S5/10 ,  H04W64/00 ,  H04W24/10 ,  H04W4/02

    CPC classification number: G01S5/10 ,  H04L5/0007 ,  H04W4/02 ,  H04W24/10 ,  H04W64/00

    Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.

    Abstract translation: 通过对于用于到达时差（TDOA）的信号引入非单位频率重用，可以通过包括可以在低灵敏度和低信噪比下检测的附加参考信号来提高邻近小区的可听性， 测量，例如从服务小区站点和各个相邻小区站点发送的信号的正交性。 提出了称为TDOA-RS的新参考信号，以提高部署3GPP EUTRAN（LTE）系统的蜂窝网络中的相邻小区的可听性，并且可以在用于PDSCH的任何资源块（RB）中发送TDOA-RS 和/或MBSFN子帧，而不管后者是否在支持PMCH和PDSCH两者的载波上。 除了附加的TDOA-RS参考信号之外，还可以包括附加同步信号（TDOA-sync）以提高相邻小区的可听性。

    Feedback Based on Codebook Subset
    37.
    发明申请
    Feedback Based on Codebook Subset 审中-公开
    基于Codebook子集的反馈

    公开(公告)号：US20170041055A1

    公开(公告)日：2017-02-09

    申请号：US15331979

    申请日：2016-10-24

    Applicant: Apple Inc.

    Inventor： Lai King Tee ,  Yi Song ,  Neng Wang

    IPC: H04B7/04 ,  H04B7/06

    CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0695 ,  H04L25/03828

    Abstract: The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.

    Abstract translation: 本发明提供了在SDMA扇区化蜂窝网络中信号强度加权的改进应用。 改进的信号强度加权应用通过改进的来自新码本子集的权重选择或通过从较大码本子集中的权重的选择来进行。 在另一个实施例中，可以使用天线波束索引或比特图来选择SDMA扇区化蜂窝网络中的最佳波束。 在另一个实施例中，上行链路或下行链路传输分组中的一个或多个因子可以指定哪个定向传输波束最适合于传输，或者何时应激活定向传输波束。

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