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X2 message notification method, family base station and X2 gateway

A technology for home base station and message notification, which is applied in the field of wireless communication and can solve the problems of inability to route and not saving the eNB matching relationship, etc.

Inactive Publication Date: 2015-03-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following problem exists in this candidate solution: Since the IP address of X2GW is configured for HeNB, HeNB can use a new registration message to establish and save the matching relationship between RNL ID and TNL address in X2GW once it is powered on
When the eNB obtains the TNL address of the X2GW through the TNL address discovery process, or when the eNB has not registered with the X2GW configured with an IP address after it is powered on, if the HeNB discovers the cell served by the eNB and decides to To establish an indirect X2 connection with the eNB, the HeNB sends an X2 establishment request message with the RNL ID of the target eNB to the X2GW, but since the X2GW does not save the matching relationship between the RNL ID and the TNL address of the eNB at this time, the X2GW cannot route the X2 Create request message to target eNB

Method used

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  • X2 message notification method, family base station and X2 gateway
  • X2 message notification method, family base station and X2 gateway
  • X2 message notification method, family base station and X2 gateway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] In this embodiment, the eNB obtains the TNL address of the X2GW through the process of TNL address discovery. When the X2GW receives the X2 establishment request message with the RNL ID of the target eNB from the HeNB, it does not find that the target The RNL ID of the eNB matches the TNL address, so the X2 setup request message cannot be routed to the target eNB.

[0084]X2GW carries a new reason value in the X2 message sent to HeNB, such as "matching information is not available", "unknown target address", "routing is not supported", etc., so that the source HeNB knows that X2GW is due to no target eNB The RNL ID and the TNL address match the relationship and cannot route the X2 establishment request message to the target eNB. The X2 message may be an X2 establishment failure message.

[0085] The source HeNB can send the RNL ID of the target eNB and the TNL address of the target eNB acquired through the TNL address discovery process to the X2GW in the subsequent pro...

Embodiment 2

[0096] When HeNB1 is registered on X2GW1, and HeNB2 or eNB2 is registered on X2GW2, in this scenario, an indirect X2 interface cannot be established between HeNB1 and HeNB2 or eNB2 through X2GW1.

[0097] The X2GW sends a new reason value in the X2 message sent to the HeNB, such as "not under the same X2GW", so that the source HeNB knows that the source HeNB is not connected to the same X2GW as the newly discovered HeNB or eNB. The X2 message may be an X2 establishment failure message. The source HeNB may not attempt to establish an indirect X2 connection to the newly discovered HeNB or eNB subsequently, thereby avoiding a large amount of unnecessary X2 signaling overhead.

[0098] Figure 4 is a schematic flow chart of this embodiment, such as Figure 4 shown, including the following steps:

[0099] Step 201: The IP address of X2GW1 is configured for HeNB1. After power on, the matching relationship between RNL ID and TNL address of HeNB1 is established and saved in X2GW1 t...

Embodiment 3

[0106] In this embodiment, it is assumed that the way of establishing the X2 connection (direct X2 connection or indirect X2 connection) between the eNB and the HeNB pair and the HeNB and the HeNB pair is saved at the HeNB.

[0107] When the source HeNB decides to establish a direct X2 connection to the target eNB according to the saved X2 connection mode, the source HeNB carries the indication information requesting to return the TNL address of the target eNB in ​​the X2 message sent to the target eNB. The X2 message can be X2 build request message. After the X2GW receives the X2 message, if there is already a matching relationship between the RNL ID and the TNL address of the target eNB at the X2GW, the X2GW will not route the X2 message to the corresponding Instead, the target eNB sends an X2 message to the source HeNB, and carries the TNL address of the target eNB in ​​the X2 message. The X2 message can be an X2 establishment failure message, so that the subsequent source ...

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Abstract

The invention provides an X2 message notification method, a family base station and an X2 gateway. The method includes the steps that the family base station receives an X2 message of the X2 gateway, wherein the X2 message carries a reason value used for showing that routing to a target base station cannot be carried out; the family base station conducts corresponding processing according to the reason value. By means of the X2 message notification method, the family base station and the X2 gateway, the reason why the X2 built request message cannot be routed to a target eNB can be obtained, the RNL ID and the TNL address of the eNB can be carried in the X2 message, transmitted to X2GW, of HeNB, the matching relation between the RNL ID and the TNL address of the eNB can be saved in the X2GW, and therefore it is guaranteed that the follow-up X2 built request message is correctly routed to the target eNB.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method for notification of X2 messages, a home base station, and an X2 gateway. Background technique [0002] Femtocells are small, low-power base stations that are deployed in private places such as families, groups, companies, or schools as dedicated resources for private users. The ingress device is connected to the operator's core network. The main function of the femtocell is to provide users with a higher service rate, reduce the cost of using high-speed services, and make up for the lack of coverage of the existing distributed cellular wireless communication system. The advantages of femtocells include: low cost, easy to use (plug and play), low output power, saves the cost of setting up and maintaining base stations for operators, and solves indoor coverage optimization, etc. [0003] In the Long Term Evolution (LTE for short) system, a schematic diagram of the net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/24H04W88/08H04W88/16H04W92/20
CPCH04W40/24H04W40/00
Inventor 吴蕴璐黄莹高音
Owner ZTE CORP
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