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Method and system for keeping data channel synchronization in WIMAX service

A data channel and channel technology, applied in the field of microwave access global interoperability communication, to avoid adverse effects, ensure synchronization, and improve the success rate

Inactive Publication Date: 2010-06-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a method and system for maintaining data channel synchronization in WIMAX services, so as to solve the impact caused by inconsistent data channels in WIMAX services

Method used

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  • Method and system for keeping data channel synchronization in WIMAX service
  • Method and system for keeping data channel synchronization in WIMAX service
  • Method and system for keeping data channel synchronization in WIMAX service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Figure 4 It is a flow chart of the controlled switching of the first method embodiment of the present invention. Such as Figure 4 As shown, the controlled handover caused by the movement of MS / SS includes the following steps:

[0051] Step S401, the MS, the base station, and the ASN gateway complete the handover preparations, including the source base station notifying the target base station (possibly multiple target base stations) that may be handed over, the target base station obtains the service flow information of the MS from the source base station, and the target base station obtains the service flow information of the MS from the ASN gateway. Apply for AK Context (authentication key context, used to realize channel security between BS and MS), etc.;

[0052] In step S402, the MS selects a target base station from multiple target base stations through message interaction as the access point after the handover, that is, after the handover is completed, the MS...

Embodiment 2

[0061] When exiting IDLE (MS is in idle mode), there is also the situation that the data channel between the base station and the ASN gateway is not synchronized. Figure 5 It is a flow chart of exiting IDLE in the second embodiment of the method of the present invention. Such as Figure 5 As shown, exiting IDLE includes the following steps:

[0062] Step S501, the MS, the base station, and the ASN gateway complete the preparations for exiting IDLE, including the base station applying for an AK Context (authentication key context, used to implement channel security between the BS and the MS) from the ASN gateway;

[0063] Step S502, the base station sends a path establishment request (Path_Reg_Req) ​​message to the ASN gateway, the message carries the data path information to be established, and establishes the data path;

[0064] Step S503, the ASN gateway receives the channel creation request (Path_Reg_Req) ​​message, obtains the information of the data channel to be estab...

Embodiment 3

[0069] Figure 6 It is a flow chart of the base station side autonomously updating channel information in the third embodiment of the method of the present invention. When the base station finds that the data channel information stored by itself is inconsistent with that stored by the ASN gateway, the method of the present invention can also be used to ensure that the data channel information on the base station side and the ASN gateway side are consistent without affecting the normal use of users. Such as Figure 6 As shown, the method includes the following steps:

[0070] Step S601, the base station and the ASN gateway complete some business processes through message interaction, and these processes are not limited to a specific process;

[0071] Step S602, if the base station detects that the data channel information between itself and the ASN gateway is inconsistent during the process interaction, the base station sends a path refresh request (Path_Refresh_Req) ​​messag...

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Abstract

The invention discloses a method for keeping data channel synchronization in WIMAX service and a system, comprising that: a base station transmits channel refreshing requirement information to an access service network ASN gateway; ASN gateway constructs the data channel newly after receiving the channel refreshing requirement information, reply channel refreshing response information to the basestation, which carries along newly constructed data channel information; the base station builds corresponding data channel according to the data channel information carried in the data channel refreshing response information. The invention lso discloses a system for keeping data channel synchronization in WIMAX service. The technical scheme of the invention avoids bad effect of data loss and thelike caused by asynchronous data channel at two sides of the base station and the ASN gateway, causing the data channel between the base station and the ASN gateway to keep in line, increasing successratio of performing data exchange between the base station and the ASN gateway, ensuring to affect using sense of the users as small as possible when exchanging.

Description

technical field [0001] The present invention relates to the field of Worldwide Interoperability for Microwave Access (WiMAX for short) communication, and in particular to a method and a system for maintaining synchronization of data channels. Background technique [0002] figure 1 It is a reference model diagram of WiMAX network architecture. WiMAX is a broadband wireless access technology based on the IEEE 802.16 standard. Such as figure 1 As shown, its network reference model is composed of three logical entities: mobile terminal MS / SS, access service network (ASN) and connection service network (CSN). The mobile terminal MS / SS is the ultimate service recipient; the access service network (ASN) is a collection of functional entities related to access services in the WiMAX network system; the connection service network (CSN) provides various network services for MS, and is provider of business. The connection between ASNs is through the R4 interface. [0003] figure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/04H04W88/16H04L12/56
Inventor 李长明
Owner ZTE CORP