Identifying nulling wireless nodes for distributed MIMO communication in a wireless node cluster

US10750395B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Yan Zhou · San Diego, US
• George Cherian · San Diego, US
• Abhishek Pramod Patil · San Diego, US
• Alfred Asterjadhi · San Diego, US
• Venkata Ramanan Venkatachalam Jayaraman · Del Mar, US

Key dates

• Filing date: Mar 8, 2018
• Grant date: Aug 18, 2020
• Expiry date: Jul 6, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B17/21
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to determine each wireless node (e.g., station) in the cluster that needs to be nulled by another wireless node (e.g., an access point). For example, one of the wireless nodes may obtain signal measurement information from the other wireless nodes and thereby generate a list of wireless nodes (e.g., access points) that need to null one or more wireless nodes (e.g., stations).