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Method and system for replacing relay node, D2D (Device-to-Device) user equipment and control node

A technology of central control node and relay node, applied in electrical components, wireless communication, connection management, etc., can solve the problems of not providing D2D to replace the relay node UE, and D2D communication cannot be carried out smoothly.

Inactive Publication Date: 2016-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology does not provide a method for replacing the relay node UE in the D2D communication relay transmission mode, so that the D2D communication between D2D UEs passing through the relay node UE cannot be carried out smoothly

Method used

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  • Method and system for replacing relay node, D2D (Device-to-Device) user equipment and control node
  • Method and system for replacing relay node, D2D (Device-to-Device) user equipment and control node
  • Method and system for replacing relay node, D2D (Device-to-Device) user equipment and control node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0159] This embodiment provides a method for replacing a relay node, which is applied to the first D2D UE side, and the method includes:

[0160] The first D2D UE receives the D2D relay node replacement indication information sent by the control node;

[0161] The first D2D UE communicates through a new D2D relay node according to the D2D relay node replacement indication information.

[0162] Wherein, the control node may be: a base station, a D2D relay node, a ProSe function, a ProSe application server, or a network element performing D2D relay node management.

[0163] The D2D relay node replacement instruction information includes at least one of the following: identification information of the first D2D UE, new D2D relay node identification information, identification information of the second D2D UE, and the D2D UE and D2D Configuration information of D2D communication between relay nodes, relay status indication, relay suspension indication, relay connection release in...

Embodiment 2

[0295] The application scenario of this embodiment is: D2D UE1, D2D UE2, relay UE1, and relay UE2 are all within the coverage of the cellular communication network and are all D2D UEs; and, relay UE1 and relay UE2 can serve as relay nodes to provide other D2D UEs Relay service. It should be noted that the D2D UE can be connected to different relay UEs, and can send D2D data to different target D2D UEs through different relay UEs.

[0296] In this embodiment, the method for replacing a relay node in a D2D UE-to-UE relay scenario is as follows: Figure 4 shown, including the following steps:

[0297] Step 401: D2D UE1 and D2D UE2 perform D2D communication through relay UE1 as a relay node, and D2D UE1 determines that the relay UE needs to be replaced;

[0298] Here, the way D2D UE1 determines that it needs to replace the relay UE can be any of the following:

[0299] In the first way, D2D UE1 or D2D UE2 or relay UE1 moves, and D2D UE1 detects that the signal quality between i...

Embodiment 3

[0340] The application scenario of this embodiment is: D2D UE1, D2D UE2, relay UE1, and relay UE2 are all within the coverage of the cellular communication network and are all D2D UEs; and, relay UE1 and relay UE2 can serve as relay nodes to provide other D2D UEs Relay service. It should be noted that the D2D UE can be connected to different relay UEs, and send D2D data to different target D2D UEs through different relay UEs.

[0341] In this embodiment, the method for replacing a relay node in a D2D UE-to-UE relay scenario is as follows: Figure 5 shown, including the following steps:

[0342] Step 501: D2D UE1 and D2D UE2 perform D2D communication through relay UE1 as a relay node, and D2D UE1 determines that the relay UE needs to be replaced;

[0343] Here, the way D2D UE1 determines that it needs to replace the relay UE can be any of the following:

[0344] In the first way, D2D UE1 or D2D UE2 or relay UE1 moves, and D2D UE1 detects that the signal quality between itsel...

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Abstract

The invention discloses a method for replacing a relay node, comprising the steps that first D2D UE (User Equipment) receives D2D relay node replacement indication information transmitted by a control node; and the first D2D UE communicates, according to the D2D relay node replacement indication information, through a new D2D relay node. The invention also discloses another method and system for replacing the relay node, the D2D UE and the control node.

Description

technical field [0001] The present invention relates to the technical field of Device-to-Device (D2D, Device-to-Device), in particular to a method and system for replacing a relay node, a D2D user equipment (UE, User Equipment) and a control node. Background technique [0002] With the development of wireless multimedia services, people's demand for high data rate and user experience is increasing, which puts forward higher requirements on the system capacity and coverage of traditional cellular networks. On the other hand, the popularity of applications such as social networks, short-distance data sharing, and local advertisements has gradually increased people's demand for understanding and communicating with nearby interested people or things (which can be called proximity services (Proximity Services)). The traditional cell-based cellular network has obvious limitations in terms of high data rate and proximity service support. Against this background of demand, D2D techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W76/02
Inventor 黄莹陈琳谢峰
Owner ZTE CORP
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