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Method for initiating connection re-establishment of radio resource controller and terminal

A wireless resource and connection reconstruction technology, which is applied in the field of 3GPP LTE system, can solve problems such as uncertainty and no different processing methods, and achieve the effect of improving the probability of success

Active Publication Date: 2015-01-07
LEADCORE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the method for initiating RRC connection reestablishment introduced by the existing protocol 36.304, different processing methods are not set according to different triggering reasons
When the triggering cause is that the terminal detects a radio link failure, it is reasonable to perform RRC connection reestablishment according to the method introduced in protocol 36.304, but if the triggering reason is the other four, the method introduced in protocol 36.304 does not When searching for cells with a high probability of containing terminal context information, there is great uncertainty in the success of RRC connection re-establishment

Method used

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  • Method for initiating connection re-establishment of radio resource controller and terminal
  • Method for initiating connection re-establishment of radio resource controller and terminal
  • Method for initiating connection re-establishment of radio resource controller and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 , figure 1 It is the flow chart of embodiment 1. The present invention specifically can comprise the following steps:

[0031] Step 101: Set the priority of all frequency band cells according to the trigger condition that triggers the RRC connection re-establishment of the terminal.

[0032] Since one of the necessary conditions for successful RRC connection re-establishment initiated by the terminal is that the cell contains the context information of the terminal, the terminal should try to search for a cell with a higher probability of containing the terminal context when initiating RRC connection re-establishment.

[0033] There are five reasons that may trigger the terminal to perform RRC connection re-establishment as described in the background technology. Different triggering reasons face different specific situations, and the terminal should first select a different cell. Therefore, the terminal should perform cell monitoring based on different t...

Embodiment 2

[0054] In this embodiment, the trigger cause is that the terminal detects a wireless link failure, see figure 2 and image 3 , figure 2 is a flow chart of the terminal initiating a search process in this embodiment, image 3 It is a signaling flowchart of this embodiment.

[0055] It is assumed that in this embodiment, a terminal (UE, User Equipment) resides in cell A (CELL A), and cell A is a serving cell of the terminal. The terminal is in the RRC_CONNECTED state at this time, that is, the terminal has established an RRC connection. Only in this state, when a trigger is encountered, can the RRC connection reestablishment process be initiated. The terminal being in the RRC_CONNECTED state is a necessary prerequisite for successful RRC connection reestablishment.

[0056] And RRC has activated the security mode, that is, RRC has completed the initial security activation process (Intial security activation). In the protocol 36.331, it is required that the RRC connection re...

Embodiment 3

[0073] In this embodiment, the trigger reason is that the bottom layer indicates that the integrity check fails, see Figure 4 and Figure 5 , Figure 4 It is a flow chart of the terminal initiating a search process in this embodiment, Figure 5 It is a signaling flowchart of this embodiment.

[0074] Similarly, the terminal UE resides in the cell A and is in the RRC_CONNECTED state, and the RRC has activated the security mode.

[0075] Cell A sends an RRC Connection Reconfiguration (RRC Connection Reconfiguration) message to the RRC, but when the terminal receives the message, the integrity check fails, and the terminal initiates an RRC connection re-establishment process.

[0076] Step 401: The terminal searches for a serving cell;

[0077] It is judged whether the serving cell satisfies the residency condition. If satisfied, the terminal initiates an RRC connection reestablishment request to the serving cell. If not, go to step 402.

[0078] The camping condition is ...

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Abstract

The invention discloses a method for initiating connection re-establishment of a radio resource controller and a terminal. The method comprises the following steps of: carrying out priority setting on full-frequency-band cells according to trigger conditions for triggering the terminal to perform connection re-establishment of the radio resource controller in advance; then when the connection re-establishment of the radio resource controller is required to be initiated, sequentially searching in all the full-frequency-band cells according to the high-low sequence of the preset priority of the full-frequency-band cells by the terminal until certain cell is searched; and initiating a connection re-establishment request of the radio resource controller to the searched cells by the terminal so as to reestablish the connection of the radio resource controller. According to the method and the terminal, the probability of success of initiated connection re-establishment of the radio resource controller can be effectively improved.

Description

technical field [0001] The present invention relates to the technical field of 3GPP LTE systems, and more specifically relates to a method and a terminal for initiating connection reestablishment of a radio resource manager. Background technique [0002] 3GPP (The Third Generation Partnership Project, Third Generation Partnership Project) is the leading 3G technical specification organization, which is composed of ETSI (European Telecommunications Standards Institute) in Europe and ARIB (Association of Radio Industries and Businesses in Japan) , Japan Wireless Industry and Commerce Federation) and TTC (Telecommunications Technology Committee, Telecommunication Technology Committee), South Korea's TTA (Telecommunications Technology Association, Telecommunication Technology Association) and the United States T1 (Telecommunications 1, Telecommunication Standards Committee) initiated the establishment at the end of 1998 It aims to research, formulate and promote the 3G (The Thir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W76/02
Inventor 余霞甘慧彦
Owner LEADCORE TECH