公开(公告)号：US09319182B2

公开(公告)日：2016-04-19

申请号：US14685018

申请日：2015-04-13

申请人： QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.

发明人： Hong Wan ,  Fei Tong ,  Erik Lindskog

IPC分类号： H03D1/00 ,  H04L27/06 ,  H04L1/00 ,  H04B7/04 ,  H04L27/26 ,  H04L5/00 ,  H04L25/06 ,  H04L27/22 ,  H04L27/38 ,  H04L25/03

CPC分类号： H04L1/0054 ,  H04B7/0413 ,  H04L1/0048 ,  H04L5/0014 ,  H04L25/067 ,  H04L27/22 ,  H04L27/2649 ,  H04L27/38 ,  H04L2025/03426 ,  H04L2025/03624

摘要： This invention is related to a low-complexity MIMO detector in a wireless communication system with near optimal performance. An initial symbol estimation is performed for a received symbol vector. The soft information of the received symbol vector can be more accurately calculated using every candidate symbol vector of a combined set of candidate symbol vectors, wherein the combined set is generated based on the initial estimation. By combining aspects of both the linear detection and the ML detection, the complexity of the proposed detector becomes orders of magnitude lower than that of a ML detector, but the performance is very close to that of an ML detector.

公开(公告)号：US09497778B2

公开(公告)日：2016-11-15

申请号：US14689518

申请日：2015-04-17

申请人： Qualcomm Technologies International, Ltd.

发明人： Fei Tong ,  Mark Gothorn Rison

IPC分类号： H04W74/04 ,  H04W74/00 ,  H04L12/64 ,  H04W74/02 ,  H04W28/04 ,  H04W72/04

CPC分类号： H04W74/04 ,  H04L12/6418 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/02 ,  H04W74/0841

摘要： Managing access to a time-slotted communications medium by masking interrogatory codes that are contained in signals demarcating time slots of the medium and comparing the masked interrogatory codes against masked response codes. Access to the medium is dependent on the outcome of these comparisons.