公开(公告)号：US20160014726A1

公开(公告)日：2016-01-14

申请号：US14327261

申请日：2014-07-09

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Sheng-Yuan TU ,  Insung KANG ,  Bahadir CANPOLAT ,  Lan LAN ,  Chien Chung LIN

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/042 ,  H04L5/003 ,  H04L25/0204 ,  H04L25/0236 ,  H04L25/03171 ,  H04L25/03292 ,  H04W72/0446

Abstract: Apparatus and methods for wireless communication include receiving, in a time division synchronous code division multiple access (TD-SCDMA) network, a first number of symbols before a midamble, the midamble, and a second number of symbols after the midamble; determining first forward and backward probabilities for a first subset of the first number of symbols and second forward and backward probabilities for a second subset of the second number of symbols; determining first posterior probabilities for the first subset of the first number of symbols and second posterior probabilities for the second subset of the second number of symbols; determining a first target posterior probability and a second target posterior probability; detecting a first target symbol and a second target symbol; and determining a first channel estimate corresponding to the first target symbol and a second channel estimate corresponding to the second target symbol.

Abstract translation: 用于无线通信的装置和方法包括：在时分同步码分多址（TD-SCDMA）网络中接收中间码之前的第一数量符号，中间码和中间码之后的第二数量的符号; 确定所述第一数量符号的第一子集的第一前向和后向概率以及所述第二数量符号的第二子集的第二前向和后向概率; 确定第一数量符号的第一子集的第一后验概率和第二数量符号的第二子集的第二后验概率; 确定第一目标后验概率和第二目标后验概率; 检测第一目标符号和第二目标符号; 以及确定对应于所述第一目标符号的第一信道估计和对应于所述第二目标符号的第二信道估计。

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：US20140335873A1

公开(公告)日：2014-11-13

申请号：US14026932

申请日：2013-09-13

Applicant: QUALCOMM Incorporated

Inventor： Zhi-Zhong YU ,  Bahadir CANPOLAT ,  Awnit KUMAR

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04W48/16 ,  H04W88/06

Abstract: Embodiments of the present invention include devices, systems and methods for prevention of dropped calls. For example, a method for wireless communication is described. A wireless communication device begins an acquisition. A scan of absolute radio frequency channel numbers for supported bands is performed using a wideband receiver. The absolute radio frequency channel numbers that include a frequency correction channel are identified. A synchronization channel is decoded using data corresponding to the identified one or more frequency correction channels. Other aspects, embodiments, and features are also claimed and described.

Abstract translation: 本发明的实施例包括用于防止掉话的装置，系统和方法。 例如，描述了一种用于无线通信的方法。 无线通信设备开始采集。 使用宽带接收机进行支持频带的绝对射频信道编号的扫描。 识别包括频率校正通道的绝对射频信道号。 使用与所识别的一个或多个频率校正信道相对应的数据对同步信道进行解码。 还要求和描述其它方面，实施例和特征。