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Method and apparatus for performing state transitions for device-to-device communication

A state and device technology, applied in wireless communication, connection management, power management, etc., can solve problems such as impossible interaction

Active Publication Date: 2018-11-06
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the D2D communication state is independent of the mobile communication state, the interaction between D2D communication and mobile communication is not possible
Therefore, in the prior art, unnecessary state switching may occur between D2D communication and mobile communication

Method used

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  • Method and apparatus for performing state transitions for device-to-device communication
  • Method and apparatus for performing state transitions for device-to-device communication
  • Method and apparatus for performing state transitions for device-to-device communication

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Embodiment Construction

[0037] Preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Also, descriptions of well-known functions or constructions will be omitted so as not to obscure the subject matter of the present disclosure. The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of exemplary embodiments of the present disclosure are provided for illustration purpose only and not for the limitation as defined by the appended claims and their equivalents. purpose of disclosure.

[0038]The present disclosure provides a protocol stack and a state transition condition of a user equipment (UE) for supporting device-to-device (D2D) communication in a cellular broadband mobile communicat...

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Abstract

A method and apparatus for performing a state transition for device-to-device (D2D) communication are provided. The method includes: when the terminal is in the radio resource control (RRC)-idle and EPS (Enhanced Packet System) Mobility Management (EMM) at the Non-Access Stratum (NAS) layer - When operating in the first state or the second state defined by idle, it is determined whether D2D initialization is required. If D2D initialization is required, the method comprises transitioning to a third state defined by EMM-Registered and ECM / RRC-Connected and performing D2D initialization by the mobile communication network. If in the third state the deactivation condition is met or the D2D state update is complete, the method includes transitioning to a fourth state defined by EMM-registered and ECM / RRC-idle; and if in the fourth state it is required for D2D state update or scheduling of communications, the method includes transitioning to a third state.

Description

technical field [0001] The present invention relates to device-to-device (D2D) communication, and more particularly, to a method and apparatus for supporting state transition of a device for D2D communication in a wireless communication system. Background technique [0002] D2D communication or peer-to-peer (P2P) communication is a communication service provided via a direct communication link established between terminals without intervention of a network entity such as a base station (BS) or an access point (AP). [0003] The D2D device acquires device information and service information on at least one device by acquiring synchronization with devices around the D2D device and discovering the devices at a predetermined time using predetermined resources. Device information may include identification information about the device, interest information, and application information. [0004] D2D communication can be performed in combination with a cellular mobile communicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W52/28
CPCH04W76/14H04W76/27H04W52/02H04W52/28H04W8/005H04W88/06H04W88/08
Inventor 金暻奎张泳彬朴承勋白祥圭李晟镇
Owner SAMSUNG ELECTRONICS CO LTD