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Relay link connection control method and device

A connection control and relay link technology, applied in the field of communication, to avoid interruption of the relay link

Pending Publication Date: 2022-02-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a relay link connection control method and device to solve the problem of how the air interface handles the RRC connection of the relay terminal after the connection release process between the relay terminal and the core network is initiated

Method used

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  • Relay link connection control method and device
  • Relay link connection control method and device
  • Relay link connection control method and device

Examples

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example 1

[0161] Such as image 3 As shown, it is the third schematic flow diagram of the relay link connection control method provided by the embodiment of the present invention. The method may include the following steps:

[0162] S1: The access network device receives the terminal connection release message sent by the core network device;

[0163] The connection release message may be, but not limited to, an AN release-related message, such as an N2 UE ContextRelease Command message.

[0164] Here, the terminal refers to a relay terminal.

[0165] S2 / S3: optional step

[0166] Only when the access network device does not know the current state of the terminal, steps S2 and S3 need to be performed. For example, whether the terminal activates the relay function is determined by the terminal itself.

[0167] S2: The access network device sends a first query message to the terminal;

[0168] Wherein, the first query message is used to query the current state of the terminal.

[01...

example 2

[0180] Such as Figure 4 As shown, it is the fourth schematic flowchart of the relay link connection control method provided by the embodiment of the present invention, and the method may include the following steps:

[0181] S11: The access network device receives the terminal connection release message sent by the core network device;

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Abstract

The invention provides a relay link connection control method and device, and solves the problem of how to process RRC connection of a relay terminal by an air interface after a connection release process of the relay terminal and a core network is initiated. The method comprises the following steps: after a connection release message for a terminal sent by core network equipment is received, keeping the RRC connection of the terminal under the condition that the current state of the terminal meets a target condition; and / or, under the condition that the current state of the terminal does not meet the target condition, sending an RRC connection release message to the terminal. Therefore, the RRC connection management of the relay terminal can be realized, and the situation that the relay link is interrupted due to the fact that the relay terminal does not have a service data transmission requirement when the relay terminal works is avoided.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for controlling a relay link connection. Background technique [0002] Direct communication refers to a method in which adjacent terminals can perform data transmission through a direct communication link (also called Sidelink or PC5) within a short distance. The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a Sidelink interface or a PC5 interface). [0003] Currently, in order to expand network coverage, a user equipment (User Equipment, UE) to network relay (UE-to-Network Relay) will be introduced. The relay itself may be a terminal with a relay function. For UE-to-NetworkRelay, the interface between the Relay UE and the network uses the Uu interface, and the interface between the Relay UE and the remote terminal (ie, the relayed terminal) uses a direct communication interface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/25H04W76/34
CPCH04W76/25H04W76/34
Inventor 赵亚利侯云静
Owner DATANG MOBILE COMM EQUIP CO LTD