Invention Grant
- Patent Title: Method and apparatus for performing state transition for device-to-device communication
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Application No.: US15473236Application Date: 2017-03-29
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Publication No.: US10009949B2Publication Date: 2018-06-26
- Inventor: Kyung-Kyu Kim , Young-Bin Chang , Seung-Hoon Park , Sang-Kyu Baek , Sung-Jin Lee
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR
- Agency: McAndrews, Held & Malloy, Ltd.
- Priority: KR10-2013-0035241 20130401
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W76/14 ; H04W76/27 ; H04W76/02 ; H04W76/04 ; H04W8/00 ; H04W88/06 ; H04W88/08

Abstract:
A method and apparatus for performing a state transition for Device to Device (D2D) communication are provided. The method includes determining whether D2D initiation is required, while a terminal is operating in a first or a second state defined by EPS (Enhanced Packet System) Mobility Management (EMM)-Deregistered and EPS Connection Management (ECM)-IDLE at a Non-Access Stratum (NAS) layer and Radio Resource Control (RRC)-IDLE. If the D2D initiation is required, the method includes transitioning to a third state defined by EMM-Registered and ECM/RRC-Connected and performing the D2D initiation through a mobile communication network. If a deactivation condition is satisfied or a D2D state update is completed in the third state, the method includes transitioning to a fourth state defined by EMM-Registered and ECM/RRC-IDLE, and if a state update or scheduling for D2D communication is required in the fourth state, the method includes transitioning to the third state.
Public/Granted literature
- US20170208640A1 Method and Apparatus for Performing State Transition for Device-to-Device Communication Public/Granted day:2017-07-20
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