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Method and system for updating X2 address

An address update and address change technology, applied in electrical components, wireless communication, network data management, etc., can solve problems such as low efficiency, undefined message and flow process of X2 address change, configuration inconvenient to implement, etc., to achieve functional guarantee Effect

Inactive Publication Date: 2016-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are disadvantages in the current protocol. The message and flow process of the X2 address change are not defined in the protocol. In the actual application environment, due to the change of the network topology, the X2 address may change. Once the X2 address of the base station If there is a change, the other end of the communication will not be able to know the change, or the original X2 address will still be used for communication, resulting in the failure of the X2 communication link between the two base stations to be established for a long time
If the base station of artificial communication is used to reconfigure the X2 communication link, although the communication between the two base stations can be restored, the efficiency is low and the configuration is not easy to implement

Method used

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  • Method and system for updating X2 address
  • Method and system for updating X2 address
  • Method and system for updating X2 address

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0070] In this embodiment, a process of actively notifying the target base station and reacquiring the X2 transmission address by the target base station through a protection timer is provided after the address of the source base station X2 is changed.

[0071] The address of the source base station X2 changes, and sends an update message of the eNB transmission format to the MME, where the update message of the eNB transmission format may be an eNBCONFIGURATIONTRANSFER message, and the message carries the field of X2 address update. (Table 1X2TNLConfigurationChange field below).

[0072] The MME converts the update message in the transmission format of the eNB into an update message in the transmission format of the MME and sends it to the target base station; for example, MMECONFIGURATIONTRANSFER (X2 address update parameter).

[0073] After receiving the update message of the X2 address of the source base station, the target base station sends a request message for obtainin...

Embodiment 2

[0082] The target base station determines that the X2 communication link with the source base station is disconnected, and starts a protection timer, such as Timer_x2link, which is assumed to be 3 minutes by default.

[0083] When the protection timer Timer_x2link expires, at this time, it is possible that the real physical link is interrupted, or the X2 address of the source base station is changed. Since the target base station has not received the message from the source base station, it cannot be determined, so the target base station sends the X2 The address request message is assumed to be eNBCONFIGURATIONTRANSFER (request X2 transfer address).

[0084] The source base station feeds back feedback information including the updated X2 address to the target base station through the MME, so as to establish the X2 communication link.

[0085] Through the above embodiments, it is solved that the current LTE36.413 protocol does not describe how to notify the target base station...

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Abstract

The invention discloses a method and a system for updating an X2 address. The method comprises the steps that when the X2 address of a source base station changes, an updating message is sent to a target base station; and the target base station obtains the X2 address of the source base station according to the updating message to update the X2 address, and establishes an X2 communication link via the updated X2 address. According to the method disclosed by the invention, the source base station sends the updating message to the target base station, and the target base station obtains the X2 address of the source base station according to the updating message to update the X2 address, so the problem that the existing LTE36.413 protocol does not describe when the X2 address of the source base station changes, how to notify the target base station, resulting in interruption of the X2 communication link of the target base station and the source base station, is solved; and the source base station and the target base station re-establish the X2 communication link in time, so related functions depending on the X2 communication link are guaranteed.

Description

technical field [0001] The present application relates to wireless access technology, in particular to a method and device for implementing X2 address update. Background technique [0002] The 3GPP protocol 36.413 defines the X2 address acquisition message, which provides a solution for the automatic establishment of the self-organizing network (SON) X2 transmission: if the source base station needs to establish an X2 communication link with the target base station, it needs to communicate with the core network. The link sends a request message, the message is transparently transmitted between the core networks, and forwarded to the target base station, the target base station returns its own X2 transmission address information through the response message, and subsequently establishes an X2 communication link between the two base stations. This method does not need to manually configure the X2 address of the opposite end in the two base stations, which greatly facilitates t...

Claims

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Application Information

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IPC IPC(8): H04W8/08H04W92/20
Inventor 刘鑫
Owner ZTE CORP
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