发明名称 |
Supporting high dimensional MU-MIMO beamforming by sounding multiple frames with different sets of antenna patterns |
摘要 |
In some aspects, the disclosure is directed to methods and systems for performing channel estimation between a beamformer and a beamformee. A beamformer can determine that a beamformee is configured to perform channel estimation for up to a pre-configured number of transmit spatial streams from the beamformer. The pre-configured number of transmit spatial streams can be less than a plurality of transmit spatial streams of the beamformer. The beamformer can determine a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams. The beamformer can send a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams. |
申请公布号 |
US9124317(B1) |
申请公布日期 |
2015.09.01 |
申请号 |
US201414263766 |
申请日期 |
2014.04.28 |
申请人 |
BROADCOM CORPORATION |
发明人 |
Garrett David;Zheng Jun;Jindal Nihar |
分类号 |
H04B7/02;H04B7/04;H04L25/02;H04B7/12;H04L1/06 |
主分类号 |
H04B7/02 |
代理机构 |
Foley & Lardner LLP |
代理人 |
Foley & Lardner LLP ;McKenna Christopher J.;Pua Paul M. H. |
主权项 |
1. A method for performing channel estimation, the method comprising:
determining, by a beamformer, that a beamformee is configured to perform channel estimation for up to a pre-configured number of transmit spatial streams from the beamformer, the pre-configured number of transmit spatial streams is less than a plurality of transmit spatial streams of the beamformer; determining, by the beamformer, a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams, a first subset of the plurality of subsets having at least one transmit spatial stream from a same antenna of the beamformer as at least one transmit spatial stream in another subset from the plurality of subsets; and sending, by the beamformer, a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams. |
地址 |
Irvine CA US |