公开(公告)号：WO2010129439A2

公开(公告)日：2010-11-11

申请号：PCT/US2010033292

申请日：2010-04-30

Applicant: QUALCOMM INC ,  ABRISHAMKAR FARROKH ,  LI WENJUN ,  YU YINGQUN ,  SRIPATHI PRASHANT UDUPA

Inventor： ABRISHAMKAR FARROKH ,  LI WENJUN ,  YU YINGQUN ,  SRIPATHI PRASHANT UDUPA

IPC: H04L25/03

CPC classification number: H04L25/03063 ,  H04B1/7107 ,  H04B2201/70703 ,  H04J11/0036 ,  H04J13/0044 ,  H04J13/0048 ,  H04J13/12 ,  H04L27/3488 ,  H04L27/38

Abstract: Systems and methods for symbol detection using sub-constellations are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users, a first detection unit configured to detect first components of user symbols for the plurality of users based on the received symbols and a computation unit configured to compute a portion of the received symbols due to the first components of the user symbols. The apparatus further comprises a second detection unit configured to detect second components of the user symbols based on the received symbols with the computed portion removed and a combining unit configured to detect the user symbols by combining the first components of the user symbols with the respective second components of the user symbols.

Abstract translation: 提供了使用子星座进行符号检测的系统和方法。 在本公开的一个方面，提供一种装置。 该装置包括：处理单元，被配置为将接收到的码片处理为多个用户的接收符号;第一检测单元，被配置为基于接收到的码元检测多个用户的用户符号的第一分量;以及计算单元， 由于用户符号的第一分量，接收到的符号的部分。 所述装置还包括：第二检测单元，被配置为基于所接收的符号检测所述用户符号的第二成分，所述接收到的符号被删除;以及组合单元，被配置为通过将所述用户符号的第一分量与相应的第二 用户符号的组成部分。

公开(公告)号：WO2013120047A2

公开(公告)日：2013-08-15

申请号：PCT/US2013025477

申请日：2013-02-10

Applicant: QUALCOMM INC

Inventor： SAMBHWANI SHARAD DEEPAK ,  AKKARAKARAN SONY J ,  KASTURI NITIN ,  MAIYA SHASHANK V ,  ZHANG WEI ,  SRIPATHI PRASHANT UDUPA

IPC: H04L1/00

CPC classification number: H04L1/0047 ,  H04L1/0054

Abstract: Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present.

Abstract translation: 用于无线通信的设备和方法包括测量第一路径度量和第二路径度量上的能量，将第一路径度量和第二路径度量上的能量与预定阈值进行比较，并确定是否存在专用控制信道（DCCH）能量。

公开(公告)号：WO2010008830A2

公开(公告)日：2010-01-21

申请号：PCT/US2009048263

申请日：2009-06-23

Applicant: QUALCOMM INC ,  LU FENG ,  SRIPATHI PRASHANT UDUPA ,  ZHAO LIANG ,  SUBRAHMANYA PARVATHANATHAN ,  RAO SUBRAMANYA P

Inventor： LU FENG ,  SRIPATHI PRASHANT UDUPA ,  ZHAO LIANG ,  SUBRAHMANYA PARVATHANATHAN ,  RAO SUBRAMANYA P

IPC: H04B1/10

CPC classification number: H04W52/245 ,  H04B17/345 ,  H04L1/0026 ,  H04L1/20 ,  H04W52/241 ,  H04W52/243

Abstract: System(s) and method(s) are provided for generating phase-noise resilient channel quality indicator(s). A pilot signal utilized to determine a channel quality indicator is rotated to be aligned to a phase reference signal. Separate noise evaluations in quadrature and in-phase directions are utilized, at least in part, to generate a net noise estimate that is phase-noise compensated or resilient. For example, various combination schemes of quadrature and in-phase noise evaluations can be exploited to generate a net noise estimate, the schemes include weighted average of in-phase and quadrature noise estimates and running averages thereof. Simulation of net noise estimates as a function of geometry conditions reveal that the combination schemes provide substantive mitigation of phase-noise, thus making CQI generation phase-noise resilient.

Abstract translation: 提供了用于产生相位噪声弹性信道质量指示符的系统和方法。 用于确定信道质量指示符的导频信号被旋转以与相位参考信号对准。 至少部分地利用正交和同相方向上的独立噪声评估来产生相位噪声补偿或弹性的净噪声估计。 例如，可以利用正交和同相噪声评估的各种组合方案来产生净噪声估计，该方案包括同相和正交噪声估计的加权平均值及其运行平均值。 作为几何条件的函数的净噪声估计的模拟表明，组合方案提供了相位噪声的实质性减轻，从而使得CQI生成相位噪声具有弹性。