Zeku Technology (shanghai) Corp., Ltd.

Arris Enterprises LLC

Hang Zhou

Bin Liu

Jian Gu

Chengzhi Li

Thomas A Jung

Wayne C Weeks

Stephen Burd

Robert D Shuff

Introduced here is at least one technique to better estimate interference at a receiver. The technique includes receiving a plurality of reference signals, which each have information indicative of noise. Thus, the technique further includes, for each reference signal, determining a noise estimation and determining a distance metric and log-likelihood ratio (LLR) of the noise estimation. Once the distance metric and LLR of each reference signal is determined, the receiver can determine a final LLR based on the distance metric and LLR of each reference signal. In this manner, a final LLR is determined. This technique can be applied by any device operating on MIMO technology.

Multiple-input and multiple-output (MIMO) detection in wireless communications

According to one aspect of the present disclosure, a baseband chip may be configured to receive a data stream associated with a channel. The baseband chip may be configured to select a first anchor point from the first constellation points of the first transmission layer. The baseband chip may be configured to select a first subset of constellation points from the first constellation points and the second constellation points. The baseband chip may be configured to perform a first iteration of a recursive tree search. The baseband chip may be configured to determine a first path metric based at least in part on the first iteration of the recursive tree search operation. The baseband chip may be configured to select a second anchor point from the second constellation points of the second transmission layer. The second anchor point may be associated with a second iteration of the recursive tree search.

Apparatus and method of recursive tree search based multiple-input multiple-output detection

Enclosure for an access device

Growing community of inventors

San Diego, CA, United States of America

Hang Zhou