Invention Application
- Patent Title: SWITCHING MODE OF OPERATION IN D2D COMMUNICATIONS
- Patent Title (中): D2D通信中切换操作模式
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Application No.: US14599254Application Date: 2015-01-16
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Publication No.: US20150215981A1Publication Date: 2015-07-30
- Inventor: Shailesh Patil , Sudhir Kumar Baghel , Peter Gaal , Saurabha Rangrao Tavildar
- Applicant: QUALCOMM Incorporated
- Main IPC: H04W76/02
- IPC: H04W76/02 ; H04W72/12

Abstract:
Methods, systems, and devices are described for switching a mode of operations in device to device (D2D) communications. A UE within the coverage area of a base station may communicate directly with other UEs using a centralized transmission resource schedule. Prior to experiencing radio link failure (RLF), the UE may determine that switching parameters have been met and transition to an intermediate mode based on a distributed transmission schedule using a pool of resources established by the base station. In one example, the switching parameters may be received from the base station in a connection response message. In another example, the UE may send a switching request to the base station prior to initiating the transition to the intermediate mode. In some cases, after the transition to the intermediate mode, the UE may experience a radio link failure and transition to a distributed mode using a predetermined pool of resources.
Public/Granted literature
- US09848454B2 Switching mode of operation in D2D communications Public/Granted day:2017-12-19
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