Method, device and system for selecting relay UE

A technology of sending device and receiving device, which is applied in the field of communication, can solve the problems of cost, large deployment cost, poor flexibility, etc., and achieve the effect of avoiding conflict and saving wireless resources

Active Publication Date: 2017-06-23
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the operator usually needs to pre-deploy a repeater (similar to a small base station in the UE's view) at a selected location, so that a remote UE (User Equipment) located outside the network coverage can pass through the deployed The repeater is used to communicate with the network. This solution requires a huge deployment cost and is extremely inflexible. Once the repeater connected to the remote UE fails, the remote UE will no longer be able to communicate with the network, or, Have to go through a complex switching process to switch repeaters

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  • Method, device and system for selecting relay UE
  • Method, device and system for selecting relay UE

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] figure 1 It is a schematic flowchart of a method for selecting a relay UE according to an embodiment of the present invention. The method according to the present invention is mainly realized by a remote UE and a relay candidate UE; wherein, the remote UE is used to represent a user equipment located outside the network coverage; wherein the candidate relay UE is used to represent a user equipment located in the network coverage The candidate relay UE should have an interface (such as a PC5 interface) for connecting to a remote UE and an interface (such as a Uu interface) for connecting to its serving cell. For example, Figure 5 A schematic diagram of a scenario where a remote UE selects a relay UE for an example of the present invention, wherein UE1 and UE2 are located within the network coverage of the eNB, and both UE1 and UE2 have a PC5 interfac...

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Abstract

The invention provides a method for selecting relay UE from remote UE. The method comprises steps that a, broadcast or multicast of relay discover request messages is carried out outside a network coverage scope into the network coverage scope by the remote UE; b, response messages which are fed back by at least one candidate relay UE and correspond to the relay discovery request messages are received, and the response messages comprise the wireless access network connection state information of the candidate relay UE and/or the information of frequency utilized between the candidate relay UE and other service cells; c, according to the response messages, and link quality between the remote UE and the at least one candidate relay UE measured by the remote UE, a candidate relay UE is selected from the at least one candidate relay UE as relay UE of the remote UE; and d, direct communication with the relay UE is established, so the remote UE is made to communicate with the network through the relay UE.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method, device and system for selecting a relay UE. Background technique [0002] In the prior art, the operator usually needs to pre-deploy a repeater (similar to a small base station in the UE's view) at a selected location, so that a remote UE (User Equipment) located outside the network coverage can pass through the deployed The repeater is used to communicate with the network. This solution requires a huge deployment cost and is extremely inflexible. Once the repeater connected to the remote UE fails, the remote UE will no longer be able to communicate with the network, or, Repeaters must be switched through a complex switching process. Contents of the invention [0003] The object of the present invention is to provide a method, device and system for selecting a relay UE. [0004] According to an aspect of the present invention, a first device for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/22H04W88/04
CPCH04W40/22H04W88/04
Inventor 邓云刘勇李栋
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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