公开(公告)号：US09191953B2

公开(公告)日：2015-11-17

申请号：US14029409

申请日：2013-09-17

Applicant: QUALCOMM Incorporated

Inventor： Dario Fertonani ,  Insung Kang ,  Aamod Dinkar Khandekar ,  Qiang Shen

IPC: H04W72/00 ,  H04W72/04 ,  H04L25/02 ,  H04W56/00

CPC classification number: H04W72/0453 ,  H04L25/0204 ,  H04W56/0035

Abstract: To correct for frequency shift errors, one or more frequency tracking loops may be implemented on a broadcast channel and/or dedicated channel to correct for frequency errors. A coarse loop, fine loop, or combination thereof may be used to allow accurate correction for even large frequency errors.

Abstract translation: 为了校正频移误差，可以在广播信道和/或专用信道上实现一个或多个频率跟踪环路，以校正频率误差。 粗环，微环或其组合可用于允许对甚至大频率误差的精确校正。

公开(公告)号：US20150280803A1

公开(公告)日：2015-10-01

申请号：US14433596

申请日：2013-06-18

Applicant: Jinghu CHEN ,  Wanlun ZHAO ,  Qiang SHEN ,  Insung KANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Jinghu Chen ,  Wanlun Zhao ,  Qiang Shen ,  Insung Kang ,  Jilei Hou

IPC: H04B7/08 ,  H04W52/02 ,  H04L5/00

CPC classification number: H04B7/0877 ,  H04B7/0871 ,  H04L5/0048 ,  H04W52/0232 ,  H04W88/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/444

Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The apparatus switches from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state. The condition may be a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna. The apparatus also periodically switches back to the RxD on state to determine if the condition remains in the certain state. The time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions.

Abstract translation: 在本公开的一方面，提供了一种方法，计算机程序产品和装置。 当检测到条件处于一定状态时，该设备从状态的多址接收分集（RxD）切换到RxD关闭状态。 该条件可以是第一天线和第二天线之间的相关性的高度测量，或者第一天线和第二天线之间的高平衡不平衡。 该装置还周期性地切换回RxD导通状态以确定条件是否保持在某一状态。 作为先前条件的函数动态地调整进入RxD打开状态的条目之间的时间段。

公开(公告)号：US20150139368A1

公开(公告)日：2015-05-21

申请号：US14082884

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Venkata Gautham Chavali ,  Insung Kang ,  Bahadir Canpolat

IPC: H04L25/02

CPC classification number: H04L25/025 ,  H04B1/71072 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0232

Abstract: Apparatus and methods for channel estimation in time division synchronous code division multiple access (TD-SCDMA) based on a signal received from one or more Node Bs include determining least squares channel metric estimates based on the received signal, identifying signal taps and noise taps in a tapped delay line channel estimate based on at least one of temporal correlations of the least squares channel metric estimates or composite hypothesis testing on the least squares channel metric estimates, and updating an interference buffer based on the signal taps and the noise taps.

Abstract translation: 基于从一个或多个节点B接收的信号的时分同步码分多址（TD-SCDMA）中的信道估计的装置和方法包括基于接收信号确定最小二乘信道度量估计，识别信号抽头和噪声抽头 基于所述最小二乘信道度量估计或所述最小二乘信道度量估计上的综合假设检验的时间相关性中的至少一个，以及基于所述信号抽头和所述噪声抽头来更新干扰缓冲器的抽头延迟线信道估计。

公开(公告)号：US08825048B2

公开(公告)日：2014-09-02

申请号：US13657676

申请日：2012-10-22

Applicant: QUALCOMM Incorporated

Inventor： Insung Kang ,  Qingxin Chen ,  Shiau-He Tsai

IPC: H04W4/00

CPC classification number: H04W4/025 ,  H04L5/0044 ,  H04W8/26 ,  H04W48/14 ,  H04W52/0209

Abstract: Methods for improving the time to acquire an identity of a base station by a mobile station, by relying on locally-unique attributes of the base stations instead of globally-unique attributes of the base stations, are presented. In some embodiments, data may be requested, the data may contain a globally unique attribute of a base station, a first locally unique attribute of the base station, and a second locally unique attribute of the base station. In some embodiments, data may be received in response to the request, the data may contain at least the first locally unique attribute and the second locally unique attribute. It may then be determined that the data did not contain the globally unique attribute, and an identity of the base station based at least in part on the first locally unique attribute and the second locally unique attribute may be acquired.

Abstract translation: 提出了通过依赖于基站的本地唯一属性而不是基站的全局唯一属性来改善由移动台获取基站的身份的时间的方法。 在一些实施例中，可以请求数据，数据可以包含基站的全球唯一属性，基站的第一本地唯一属性和基站的第二本地唯一属性。 在一些实施例中，响应于该请求可以接收数据，数据可以至少包含第一本地唯一属性和第二本地唯一属性。 然后可以确定数据不包含全局唯一属性，并且可以至少部分地基于第一本地唯一属性和第二本地唯一属性获取基站的身份。