Reactive scheduling methods and apparatus to enable peer-to-peer communication links in a wireless OFDMA system

US8879479B2 · kind B2 · utility

Assignee

• MOTOROLA SOLUTIONS, INC. · US

Inventors

• Michael H. Baker · Elmhurst, US
• Jeffrey D. Bonta · Arlington Heights, US
• George Calcev · Hoffman Estates, US
• Nitin Mangalvedhe · Hoffman Estates, US
• James P. Michels · Lake Zurich, US
• Nathan James Smith · Felton, GB

Key dates

• Filing date: Jan 27, 2009
• Grant date: Nov 4, 2014
• Expiry date: May 23, 2032

Classification

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

Abstract

Systems, methods and apparatus are provided for scheduling resources in Orthogonal Frequency-Division Multiple Access (OFDMA) communication networks for “direct link” or peer-to-peer communications among stations operating therein so that OFDMA resources can be allocated to a transmitter station for a peer-to-peer communication session with a receiver station such that near-far issues caused by peer-to-peer communication are reduced/avoided. The disclosed technologies can prevent peer-to-peer communication links using different sub-channels within the same time slot from creating near-far issues for other receiver stations that are within communication range.