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Method and device for radio resource control rrc connection re-establishment

A wireless resource control and connection re-establishment technology, applied in wireless communication, connection management, electrical components, etc., can solve problems such as wireless link failure

Active Publication Date: 2016-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regardless of whether it is a single RRC connection or a dual RRC connection, there may be a wireless link failure in the connection between the terminal and a certain station.

Method used

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  • Method and device for radio resource control rrc connection re-establishment
  • Method and device for radio resource control rrc connection re-establishment
  • Method and device for radio resource control rrc connection re-establishment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] see figure 1 , this embodiment provides a method for re-establishing an RRC connection. The site to which the terminal is currently attached includes a first site and a second site, the first RRC connection is maintained between the terminal and the first site, and the first RRC connection is maintained between the terminal and the second site. The second RRC connection, the method includes:

[0060] S11: When a radio link failure occurs in the first RRC connection, the terminal performs cell reselection;

[0061] S12: If the cell reselected by the terminal belongs to the second site, or if the cell reselected by the terminal and the cell connected to the second RRC belong to the same cell group, the terminal reselects another cell or the terminal stops the cell reselection operation and releases the first cell RRC connection;

[0062] S13: If the cell reselected by the terminal does not belong to the second site, or if the cell reselected by the terminal and the cell...

Embodiment 2

[0066] This embodiment is improved on the basis of Embodiment 1.

[0067] see figure 2 , under the background of carrier aggregation between different sites, the scheme of RRC connection re-establishment based on dual RRC connection is as follows:

[0068] 100: The site to which the terminal is currently attached includes a first site and a second site, and two independent RRC connections are maintained between the terminal and the first site and between the terminal and the second site.

[0069] In this embodiment, the RRC connection between the terminal and the first site is called the first RRC connection, and the RRC connection between the terminal and the second site is called the second RRC connection.

[0070] 101: During the communication process, a radio link failure occurs in the first RRC connection between the terminal and the first site, that is, the terminal loses the first RRC connection between the terminal and the first site.

[0071] 102: After a radio lin...

Embodiment 3

[0085] see image 3 , this embodiment provides a method for re-establishing an RRC connection. The site to which the terminal is currently attached includes a first site and a second site, and the first RRC connection is maintained between the terminal and the first site. The method includes:

[0086] S21: When a radio link failure occurs in the first RRC connection, the second station receives a report message that the radio link failure occurs in the first RRC connection sent by the terminal;

[0087] S22: The second site determines whether to allow the terminal to perform the first RRC connection re-establishment, or to determine whether to allow the terminal to perform the RRC connection re-establishment with the second site;

[0088] S23: According to the determination result, the second station sends an indication message corresponding to the determination result to the terminal.

[0089] This embodiment provides a solution for maintaining RRC connection re-establishmen...

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Abstract

The invention discloses a method and device for wireless resource control RRC connection re-establishment, which belongs to the field of wireless communication. The method includes: when a wireless link failure occurs in the first RRC connection, the terminal performs cell reselection; if the cell reselected by the terminal belongs to the second site, or if the cell reselected by the terminal belongs to the same cell as the cell connected by the second RRC For a cell group, the terminal reselects another cell or the terminal stops the cell reselection operation and releases the first RRC connection; if the cell reselected by the terminal does not belong to the second site, or if the cell reselected by the terminal is connected to the second RRC If they do not belong to the same cell group, the terminal performs RRC connection re-establishment based on the reselected cell. The present invention provides a maintenance RRC connection re-establishment scheme between a terminal and different sites, so that when a connection failure occurs between the terminal and a site, the terminal can ensure the data service of the terminal through the RRC connection re-establishment process.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for re-establishing a radio resource control RRC connection. Background technique [0002] Carrier aggregation is the aggregation of multiple carriers into a larger bandwidth carrier to support high-speed data transmission rates. In some application scenarios, the terminal needs to aggregate carriers from two different sites, which is called carrier aggregation technology between different sites. [0003] Under the above background of carrier aggregation between different sites, one RRC (RadioResourceControl, radio resource control) connection may be maintained between the terminal and the network, and two RRC connections may also be maintained. The so-called maintenance of one RRC connection means that the terminal only establishes a bearer for transmitting RRC control messages with one of the sites. The so-called maintenance of two RRC connect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W24/04H04W76/02
CPCH04W36/08H04W72/00H04W76/19
Inventor 常俊仁李亚娟张永平张亮亮
Owner HUAWEI TECH CO LTD
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