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    • 4. 发明申请
    • SYSTEM AND METHOD FOR SUPPORTING ANTENNA BEAMFORMING IN A CELLULAR NETWORK
    • 在蜂窝网络中支持天线波束的系统和方法
    • WO2009137092A1
    • 2009-11-12
    • PCT/US2009/002866
    • 2009-05-08
    • NORTEL NETWORKS LIMITEDSONG, YiTEE, Lai, KingLI, Jun
    • SONG, YiTEE, Lai, KingLI, Jun
    • H04B1/00
    • H04B7/0632H04B7/0408H04B7/0617H04B7/0639H04B7/0695H04L5/0057H04W52/325
    • The present invention is a method and system for supporting a beamfonming 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 improve user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
    • 本发明是一种用于在具有改进的波束图案,波束扫描模式,具有反馈和报告规则的导频信道设计以及控制信令设计的移动宽带通信网络中支持波束融合天线系统的方法和系统。 具体地,改进的波束图案包括一种在无线网络中支持无线通信的方法,所述无线网络形成小区段内的至少两个空间波束,其中所述至少两个空间波束与不同的功率电平相关联,并且分别地,至少两个空间波束 可以根据独特的扫描模式移动到细胞片段。 导频信道设计提高了网络带宽性能,提高了用户移动性跟踪。 可以在优选实施例中使用特定的字段指示符CQI来建立反馈和报告规则。
    • 8. 发明公开
    • METHOD AND SYSTEM FOR USER EQUIPMENT LOCATION DETERMINATION ON A WIRELESS TRANSMISSION SYSTEM
    • VERFAHREN UND系统ZUR STANDORTBESTIMMUNG VONBENUTZERGERÄTENIN EINEM DRAHTLOSENÜBERTRAGUNGSSYSTEM
    • EP2394461A1
    • 2011-12-14
    • EP10738886.0
    • 2010-02-05
    • Nortel Networks Limited
    • TEE, Lai, KingWU, GengLI, JunTANG, YuqiangWANG, NengXU, HuaMA, Jianglei
    • H04W36/00
    • G01S5/10H04L5/0007H04W4/02H04W24/10H04W64/00
    • 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.
    • 通过对用于到达时差(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改善邻近小区的可听性。 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。