Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes

US8503938B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Rajiv Laroia · Far Hills, US
• Junyi Li · Mount Olive, US
• Sundeep Rangan · Jersey City, US
• Murari Srinivasan · Palo Alto, US
• Prashanth Haridas Hande · San Diego, US
• Arnab Das · Washington, US

Key dates

• Filing date: Jul 14, 2006
• Grant date: Aug 6, 2013
• Expiry date: Feb 25, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W72/54
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. The wireless terminal monitors for and attempts to recover broadcast loading factor information corresponding to attachment points. The wireless terminal generates and transmits an interference report to a current attachment point, the report based on the results of a measured received reference signal from the current attachment point, a measured received reference signal from each of one or more different attachment points, and uplink loading factor information. In the absence of a successfully recovered broadcast uplink loading factor corresponding to an attachment point, the wireless terminal uses a default value for that loading factor. Generated interference reports are based on beacon signal measurements and uplink loading factors, pilot signal measurements and uplink loading factors, or a mixture of beacon and pilot signal measurements and uplink loading factors.