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Method for realizing target optimum selecting three-layer fast switching in evolvement network

An evolutionary network and fast switching technology, applied in the field of communication, can solve the problems of packet loss, large switching delay, packet loss, etc., and achieve the effect of fast switching, reducing switching delay, and reducing the occurrence of packet loss

Inactive Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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Problems solved by technology

[0052] In view of the large switching delay and serious packet loss in the fast handover process that does not support FMIPv6 in the above-mentioned prior art 1 and the non-optimal selection mechanism of the target access point in the fast handover process using FMIPv6 in the second prior art and the possibility The purpose of the present invention is to provide a method that can solve the handover problem of mobile terminals between different access gateways, reduce the delay and packet loss problems in the handover process, and at the same time provide target access Optimal Selection Mechanism for Points

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  • Method for realizing target optimum selecting three-layer fast switching in evolvement network
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  • Method for realizing target optimum selecting three-layer fast switching in evolvement network

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Embodiment Construction

[0129] The present invention integrates the latest research results of IETF organizations such as FMIPv6 and CARD protocols on mobile IP technology, and combines the specific characteristics and actual needs of the mobile communication network evolution network to propose a three-layer seamless handover of MN across access gateways and across networks solution.

[0130] The following are brief introductions to FMIPv6 and CARD protocols:

[0131] (A) FMIPv6 divides fast switching into two scenarios:

[0132] Scenario 1. When the MN sends an FBU message on the PAR link and receives a FBack (Fast Binding Acknowledgment fast binding confirmation) message, this scenario is named "Predictive" mode, and its process is shown in Figure 5:

[0133] Step 501, the MN sends a RtSolPr message to the PAR to carry the link layer address of the new access point;

[0134] Step 502, PAR obtains information such as the IP address of the new access point and the network prefix through the search...

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Abstract

The provided target optimal three-layer fast switch method in evolution network comprises: (1) when up to the switch condition, MN reports RtSolPr message to the AGW / RRM function entity; (2) the source AGW / RRM decides the target AGW / RRM according to RtSolPr content, and obtains the new address NcoA used in target AGW / RRM; (3) the source AGW / RRM sends PrRtAdv message to notify MN the access message on target AGW / RRM; (4) MN binds the NcoA to the source AGW / RRM; (5) MN binds the CN with its NcoA; and (6) the target AGW / RRM re-builds dialogue to MN.

Description

technical field [0001] The present invention relates to the field of communications, in particular to the realization of MN (Mobile Node, Mobile Node, The target of the mobile terminal) is preferably a three-layer fast handover method. Background technique [0002] In the prior art, the data of the CDMA2000 EVDO network must pass through four devices: base station-BSC (Base Station Controller)-PCF (Packet Control Function, packet control function)-PDSN (Packet Data Serving Node, packet data service node) Centralized control and processing to the PDSN, the delay in transmitting user signaling and data to the core network is large, and the interfaces between devices are complex. [0003] At present, in the evolution of the network, there is an increasing demand for all-IP and simplified network equipment and interfaces. Operators and equipment manufacturers hope that the future network will have a simpler network structure and as few interfaces as possible between equipment t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L29/06H04W36/02H04W36/12
Inventor 王洁
Owner HUAWEI TECH CO LTD
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