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Method for interface communication between wireless network controller and base station

A wireless network and interface communication technology, applied in the field of communication, can solve problems such as unrecognizable, expensive, and lack of public network IP address resources, and achieve the effect of normal data transmission

Active Publication Date: 2007-05-23
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the second case, due to the lack of public network IP address resources and high cost, the existing IP transmission network generally uses an IP network using private IP addresses to connect to the public network through NAT to achieve IP communication.
Therefore, the source IP address of the message head of the user data packet that RNC receives is the IP address of the public network that NAT provides, and the source UDP Port number is the UDP Port number that NAT provides, and because in the signaling message content that RNC receives The IP address is: the private IP address of Node B, and the UDP Port number is the UDP Port number of Node B. Due to the inconsistency between the public IP address and the private IP address, the inconsistency between the public network address and the private address It can be seen that according to the content of the signaling message, the RNC will not be able to identify all the correct user data packets sent by the Node B, and will discard them
[0012] Therefore, it can be seen from the above that for the situation where the IP transmission network is used as the bearer of the Iub interface, if the Node B uses a private IP address and uses the existing WCDMA communication protocol, it will cause abnormalities between the Node B and the RNC communication

Method used

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  • Method for interface communication between wireless network controller and base station
  • Method for interface communication between wireless network controller and base station
  • Method for interface communication between wireless network controller and base station

Examples

Experimental program
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Embodiment 1

[0055] Fig. 3 is the schematic flow chart of the method of this embodiment, as shown in the figure, this method comprises the following steps:

[0056] Step S301: Obtain the IP address mapping relationship.

[0057] After the Node B starts successfully, send a message to the RNC that contains the private IP address of the Node B and the Node B identification in the message content. The Node B identification can be the Node B ID or the Node B Name, etc., which can indicate the Node B Specifically, the identifier of the Node B.

[0058] As shown in Figure 4, after the message is sent from the Node B, it passes through the NAT and reaches the RNC. When this message passes through NAT, the IP source address in the message header is changed from the private IP address to the public IP address provided by NAT. After RNC receives this message, according to the IP source address (the public network IP address that NAT provides) in the message header, and the private IP address in th...

Embodiment 2

[0082] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the IP mapping relationship and the UDP Port number mapping relationship are obtained respectively, but in this embodiment, Node B does not send information separately to obtain the IP mapping relationship, but obtains At the same time as the UDP Port number mapping relationship, the IP mapping relationship is obtained.

[0083] Fig. 7 is the schematic flow chart of this implementation method, as shown in the figure, this method comprises the following steps:

[0084] Step S701: Obtain the mapping relationship between the IP address and the UDP Port number.

[0085] This step is basically the same as step S302 in Embodiment 1. The difference is that since a NodeB has several UDP Ports, and the IP addresses of all UDP Ports under the Node B are the IP addresses of the Node B, each UDP Port under the Node B uses the same IP address ( IP address of the Node B) and have different UDP Port num...

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PUM

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Abstract

The invention relates to an interface communication method between wireless network controller and base station, wherein the interfaces (Iub interfaces) between wireless network controller and base station use IP transmission network as support; and the method comprises that: wireless network controller obtains the projections between the IP address, user data pack protocol port of Node B, and the IP address and user data pack protocol port provided by network address converter; the wireless network controller based on said projection communicates with Node B. The invention can confirm normal communication of Iub interface when Node B uses private IP address.

Description

technical field [0001] The invention relates to the communication field, in particular to an interface communication method between a wireless network controller and a base station using an IP transmission network as a bearer. Background technique [0002] With the continuous evolution of Wideband Code Division Multiple Access System (WCDMA system for short) and the rapid development of IP broadband network, IP transmission is used as the physical interface (Iub interface) between RNC and Node B The bearer can not only effectively increase the bandwidth of the Iub interface and reduce the cost of transmission, but also because IP transmission resources can be easily obtained at any site, so using the Iub interface that uses IP transmission as the bearer can greatly improve the transmission cost. The flexibility of resource acquisition reduces the difficulty of site construction. [0003] However, since the communication protocol of the WCDMA system in the prior art does not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/10H04L12/56H04L29/08
Inventor 朱伟申纪伟
Owner XFUSION DIGITAL TECH CO LTD
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