公开(公告)号：US20160013877A1

公开(公告)日：2016-01-14

申请号：US14327291

申请日：2014-07-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh ABRISHAMKAR ,  Venkata Gautham CHAVALI ,  Bahadir CANPOLAT ,  Insung KANG ,  Ming KANG ,  Hari SANKAR ,  Aamod Dinkar KHANDEKAR

IPC: H04J11/00

CPC classification number: H04J11/005 ,  H04B1/7103 ,  H04J11/0036

Abstract: Apparatus, methods, and computer program product for wireless communication, including receiving a plurality of chips in a time division synchronous code division multiple access (TD-SCDMA) network; performing channel matched filtering, despreading, and descrambling on the plurality of chips to determine a plurality of received symbols for each of a plurality of cells; performing symbol-level inter-cell interference cancellation on the plurality of received symbols to determine a plurality of serving cell symbol estimates; and performing multi-user detection on the plurality of serving cell symbol estimates to determine a plurality of detected serving cell symbols.

Abstract translation: 用于无线通信的装置，方法和计算机程序产品，包括在时分同步码分多址（TD-SCDMA）网络中接收多个码片; 对所述多个芯片执行信道匹配滤波，解扩和解扰以确定多个小区中的每一个的多个接收符号; 对所述多个接收符号执行符号级小区间干扰消除以确定多个服务小区符号估计; 以及对所述多个服务小区符号估计执行多用户检测以确定多个检测到的服务小区符号。

公开(公告)号：US20150139366A1

公开(公告)日：2015-05-21

申请号：US14082867

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Venkata Gautham CHAVALI ,  Farrokh ABRISHAMKAR ,  Insung KANG ,  Roy Franklin QUICK, JR. ,  Dario FERTONANI ,  Ming KANG ,  Hari SANKAR

IPC: H04L25/02

CPC classification number: H04L25/025 ,  H04B1/71072 ,  H04B1/7113 ,  H04L25/0204 ,  H04L25/026

Abstract: Apparatus and methods for channel estimation includes determining two streams corresponding to odd and even samples of a received signal that is sampled at a first chip rate, performing least squares successive interference cancellation on each of the two streams to obtain odd and even raw channel estimates, interlacing the odd and even raw channel estimates to obtain interlaced channel estimates, interpolating additional samples in the interlaced channel estimates to create higher chip rate channel estimates, identifying a first set of tap positions based on the higher chip rate channel estimates, and applying matching pursuit to the first set of tap positions to identify a second set of tap positions, wherein the second set of tap positions includes fewer tap positions than the first set of tap positions.

Abstract translation: 用于信道估计的装置和方法包括确定对应于以第一码片速率采样的接收信号的奇数和偶数样本的两个流，在两个流中的每一个上执行最小二乘法连续干扰消除以获得奇数和偶数的原始信道估计， 将奇数和偶数原始信道估计交错以获得隔行信道估计，在隔行信道估计中内插附加采样以产生更高的码片速率信道估计，基于较高码片速率信道估计来识别第一组抽头位置，以及应用匹配追踪 到第一组抽头位置以识别第二组抽头位置，其中第二组抽头位置包括比第一组抽头位置更少的抽头位置。