Link-quality-based resource allocation in device-to-device communications

US9825840B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Parthasarathy Krishnamoorthy · San Diego, US
• Anand Rajurkar · Hyderabad, IN
• Prashanth Mohan
• Aravinth Rajendran · Hyderabad, IN
• Nithin Thilak NALLASIVAM · Viralimalai, IN
• Janga Reddy Alimineti · Hyderabad, IN
• KrishnaKumar Vasanthasenan · Hyderabad, IN

Key dates

• Filing date: Jul 17, 2015
• Grant date: Nov 21, 2017
• Expiry date: Nov 12, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W76/14
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method for improving device-to-device (D2D) communication in an LTE-Direct communication system includes exchanging communication information between a first user equipment (UE) and a second UE over an LTE-Direct connection with a first network resource of a first set of network resources allocated to the first and second UEs by a base station for the LTE-Direct connection. The method also includes determining, by the first UE, whether a first link quality of the LTE-Direct connection with the first network resource is below a link quality threshold. If so, the LTE-Direct connection is shifted to another network resource of the first set of network resources until an LTE-Direct connection is established that has a link quality that is equal to or greater than the link quality threshold.