公开(公告)号：US20140064416A1

公开(公告)日：2014-03-06

申请号：US13782216

申请日：2013-03-01

Applicant: QUALCOMM INCORPORATED

Inventor： James E. Beckman ,  Alexei Yurievitch Gorokhov

IPC: H04L25/02

CPC classification number: H04L25/02 ,  H04B7/0413 ,  H04L25/03178 ,  H04L25/03305 ,  H04L25/03318

Abstract: Certain aspects of the present disclosure relate to techniques for generating likely demodulation candidates using Vector Candidate Sampling (VCS). VCS is used to generate high likelihood candidates for Multiple Input Multiple Output (MIMO) demodulation that approaches optimal maximum a posteriori (MAP) performance with reasonable complexity. A receive data vector is recorded corresponding to a signal received at a MIMO receiver. A plurality of likely candidates are determined for MIMO demodulation via VCS, based at least on the receive data vector. Determining the likely candidates may include perturbing the receive data vector for each candidate based on a pre-determined perturb vector, and estimating a corresponding transmit data vector based at least on the perturbed receive data vector for the candidate and an estimator matrix, wherein the likely candidate comprises the estimated data vector.

Abstract translation: 本公开的某些方面涉及使用矢量候选采样（VCS）来生成可能的解调候选的技术。 VCS用于生成具有合理复杂度的接近最佳后验（MAP）性能的多输入多输出（MIMO）解调的高似然候选。 对应于在MIMO接收机处接收的信号记录接收数据矢量。 至少基于接收数据向量，通过VCS确定多个可能的候选者进行MIMO解调。 确定可能的候选者可以包括基于预定的扰动向量扰乱每个候选的接收数据向量，以及至少基于用于候选的扰动接收数据向量和估计矩阵来估计相应的发射数据向量，其中可能的 候选者包括估计的数据向量。

公开(公告)号：US09025704B2

公开(公告)日：2015-05-05

申请号：US13782216

申请日：2013-03-01

Applicant: QUALCOMM Incorporated

Inventor： James E. Beckman ,  Alexei Yurievitch Gorokhov

IPC: H04L27/06 ,  H04L25/02 ,  H04L25/03 ,  H04B7/04

CPC classification number: H04L25/02 ,  H04B7/0413 ,  H04L25/03178 ,  H04L25/03305 ,  H04L25/03318

Abstract: Certain aspects of the present disclosure relate to techniques for generating likely demodulation candidates using Vector Candidate Sampling (VCS). VCS is used to generate high likelihood candidates for Multiple Input Multiple Output (MIMO) demodulation that approaches optimal maximum a posteriori (MAP) performance with reasonable complexity. A receive data vector is recorded corresponding to a signal received at a MIMO receiver. A plurality of likely candidates are determined for MIMO demodulation via VCS, based at least on the receive data vector. Determining the likely candidates may include perturbing the receive data vector for each candidate based on a pre-determined perturb vector, and estimating a corresponding transmit data vector based at least on the perturbed receive data vector for the candidate and an estimator matrix, wherein the likely candidate comprises the estimated data vector.

Abstract translation: 本公开的某些方面涉及使用矢量候选采样（VCS）来生成可能的解调候选的技术。 VCS用于生成具有合理复杂度的接近最佳后验（MAP）性能的多输入多输出（MIMO）解调的高似然候选。 对应于在MIMO接收机处接收的信号记录接收数据矢量。 至少基于接收数据向量，通过VCS确定多个可能的候选者进行MIMO解调。 确定可能的候选者可以包括基于预定的扰动向量扰乱每个候选的接收数据向量，以及至少基于用于候选的扰动接收数据向量和估计矩阵来估计相应的发射数据向量，其中可能的 候选者包括估计的数据向量。