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Method and apparatus for user device switching from packet domain to circuit domain

A user equipment, circuit domain technology, applied in the field of communication networks, can solve the problems of complex routing, high cost, waste of resources, etc., and achieve the effect of simplifying the routing process

Active Publication Date: 2006-12-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0080] The present invention provides a method for user equipment to switch from the packet domain to the circuit domain, which is used to solve the problem of complex routing in the prior art, resulting in waste of resources, and the need to modify some network elements in the existing circuit domain, so that the cost is relatively high. question

Method used

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  • Method and apparatus for user device switching from packet domain to circuit domain
  • Method and apparatus for user device switching from packet domain to circuit domain
  • Method and apparatus for user device switching from packet domain to circuit domain

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0156] Example 1: see Figure 10 As shown, in this example, the network side issues the handover number, and sends a handover start notification to the network when the air interface handover starts to complete the handover from PS to CS, including the following steps:

[0157] 1-1. When the AN determines that the MS should switch to the CS domain, the AN sends a CSNP message to the MS, ordering the MS to perform the switch.

[0158] 1-2. The MS sends a 'MESSAGE' SIP message to the P / I / S-CSCF to inform the PS network that the MS will perform handover;

[0159] 1-3. The P / I / S-CSCF triggers forwarding the SIP message 'MESSAGE' to the IWGW according to the iFC rules;

[0160] 1-4. The IWGW returns a SIP message '200OK' containing a specific Handoff Number to the P / I / S-CSCF;

[0161] 1-5. P / I / S-CSCF forwards this SIP message '200 OK' to MS;

[0162] 1-6. As a response to the first CSNP message, the MS initiates a call by sending a CSNP message containing "Origination" content; ...

example 2

[0197] Example 2: see Figure 11 As shown, this example is the process for the operator to specify the switching number to realize the switching from PS to CS, including the following steps:

[0198] 2-1. When the AN determines that the MS should switch to the CS domain, the AN sends a CSNP message to the MS to order the MS to perform the switch;

[0199] 2-2. MS sends a 'MESSAGE' SIP message to P / I / S-CSCF, 2-2 to 2-4 are optional;

[0200] 2-3. The P / I / S-CSCF triggers forwarding the SIP message 'MESSAGE' to the IWGW according to the iFC rules;

[0201] 2-4. IWGW records the switching event and returns a SIP message '200 OK';

[0202] 2-5. P / I / S-CSCF forwards this SIP message '200 OK' to MS;

[0203] 2-6. As a response to the first CSNP message, the MS initiates a call by sending a CSNP message containing "Origination" content. This step can be concurrent with 2-2;

[0204] 2-7. The AN constructs a CM service request message about the CSNP (Origination) message, and sends...

example 3

[0238] Example 3: see Figure 12As shown, in this example, the network assigns a handover number, and the PS domain accesses the network to store and forward the handover completion notification to complete the handover from PS to CS, including the following steps:

[0239] 3-1. When the AN determines that the MS should switch to the CS domain, the AN sends a CSNP message to the MS to command the MS to perform the switch;

[0240] 3-2. The MS sends a 'MESSAGE' SIP message to the P / I / S-CSCF to inform the PS network that the MS will perform handover;

[0241] 3-3. The P / I / S-CSCF triggers and forwards the SIP message 'MESSAGE' to the IWGW according to the iFC rules;

[0242] 3-4. The IWGW returns a SIP message '200OK' containing a specific Handoff Number to the P / I / S-CSCF:

[0243] 3-5. P / I / S-CSCF forwards this SIP message '200 OK' to MS;

[0244] 3-6. In response to the first CSNP message, the MS initiates a call by sending a CSNP message containing "Origination" content;

...

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PUM

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Abstract

The invention relates to a method for switching the user device from group field to the circuit field, for solving the defects of present technique as complex route, waste resource, and high cost, wherein said method comprises: when the user device needs switch in the original conversation, the user device obtains the switch number; the user device uses said switch number as the called number, via simulated circuit field access network, to initialize circuit field conversation request to the circuit field core network; the circuit network conservation request is used to build the call branch from the circuit field to the group field; based on the information of said request, the conservation request is related to the original conservation of user device; at the same time, the switch from the group field to the circuit field air interface is initialized; when the user receives the switch command, the user device informs the network to complete the switch from the group field to the circuit field.

Description

technical field [0001] The present invention relates to a communication network, in particular to a method and device for switching user equipment from a packet domain to a circuit domain. Background technique [0002] In the existing circuit domain network, if it is necessary to provide users with packet domain access services, in order to reduce construction costs, the method of providing services only in hotspot areas is usually adopted. In this case, when multi-mode terminals (packet and circuit When multi-mode) moves from the boundary of the PS domain network to the boundary of the CS domain network, in order to maintain the continuity of the service, it is necessary to switch from the PS domain to the CS domain. [0003] see figure 1 As shown, method one includes the following steps: [0004] 1. The DO RNC uses the CSNP protocol to send a 1X Service Redirection message to inform the multimode mobile phone that it is approaching the edge of DO network coverage. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/64H04L12/28H04W36/14
CPCH04W36/0022H04W36/00224
Inventor 刘文宇尤昉徐杰
Owner HUAWEI TECH CO LTD
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