CN101562853B - Method for switching from microwave access worldwide interoperability system to high-speed packet data system - Google Patents
Method for switching from microwave access worldwide interoperability system to high-speed packet data system Download PDFInfo
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- CN101562853B CN101562853B CN 200810090295 CN200810090295A CN101562853B CN 101562853 B CN101562853 B CN 101562853B CN 200810090295 CN200810090295 CN 200810090295 CN 200810090295 A CN200810090295 A CN 200810090295A CN 101562853 B CN101562853 B CN 101562853B
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Abstract
This invention discloses a method for switching from a microwave access worldwide interoperability system to high-speed packet data system, comprising the following steps: (1) an access terminal AT connected with the microwave access worldwide interoperability system (MAX) carries out conversation with the HRPD system and builds a point-to-point protocol connection before switching to the high-speed packet data HRPD system,; (2) when the AT determines to switch to the HRPD system, the AT is cut off the connection with the WiMAX system, and builds an air interface connection with the HRPD system to switch to the HRPD system. The method greatly reduces the interruption time during the switching process.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of from WiMAX (WorldwideInteroperability for Microwave Access, micro-wave access global inter communication) system switches to the method for HRPD (High Rate Packet Data, HRPD (high rate packet data)) system.
Background technology
Along with the development of mobile communication technology, the WiMAX system progressively begins to dispose, and at its networking initial stage, the WiMAX system generally only is deployed in some hot zones, and such as intensive shopping centre, airport, harbour etc., its overlay area is limited.And the HRPD system has had the complete network coverage.When a dual-mode access terminal of both having supported the WiMAX system also to support the HRPD system just carries out in the process of transfer of data with the WiMAX system, moved to the covering edge of WiMAX system from the coverage of WiMAX system, in order to guarantee the continuity of customer service, must switch to the HRPD system from the WiMAX system.
General changing method is to access terminal to stop first the business of WiMAX system, then searches for the signal of HRPD system, after the HRPD system made is connected, continues original transfer of data.This changing method can cause in the handoff procedure break period of transfer of data longer.
Summary of the invention
The invention provides a kind of method that switches to high-speed grouped data system from WiMax system, access terminal in the situation that there are data to connect with solution, switch to the HRPD system from the WiMAX system, the problem that the break period of prior art transfer of data in handoff procedure is long.
In order to solve the problems of the technologies described above, the invention provides a kind of method that switches to high-speed grouped data system from WiMax system, comprise the steps:
(1) there is the access terminal AT that is connected before switching to HRPD (high rate packet data) HRPD system, to carry out session negotiation with described HRPD system with micro-wave access global inter communication WiMAX system, and sets up point to point protocol PPP and connect;
(2) when described AT determines to switch to described HRPD system, described AT disconnects and being connected of described WiMAX system, and then is connected with described HRPD system made air interface, thereby switches to described HRPD system.
The method of the invention, wherein, step (1) comprises the steps:
(1.1) the access network AN of described WiMAX system broadcasts the pilot configuration information of adjacent HRPD system small area;
(1.2) with after the described WiMAX system existing access terminal AT that is connected detects the pilot configuration information of described HRPD system small area, obtain the IP address of the AN of described HRPD system corresponding to described pilot tone;
(1.3) described AT carries out session negotiation according to the AN of the IP address of the AN of the described HRPD system that obtains and described HRPD system;
(1.4) AN of described AT by described HRPD system sets up PPP with the packet data serving node PDSN of described HRPD system and is connected.
Further, in the step (1.2), after described AT obtains the adjacent area pilot configuration information, obtain the IP address of the AN of described HRPD system corresponding to described pilot tone by domain name resolution server DNS.
Further, in the step (1.3), the AN of described AT and described HRPD system carries out session negotiation by the IP tunnel of setting up according to described IP address.
Further, in the step (1.4), the AN of described AT and described HRPD system sets up being connected of PPP by described IP tunnel with the PDSN of described HRPD system.
The method of the invention, wherein, step (2) afterwards, described AT and Mobile IP home agent MIP HA carry out MIP Binding Update flow process.
The method of the invention, wherein, in the step (2), when described AT determines to switch to described HRPD system, at first the AN to described HRPD system sends " connection request " and " routing update " message, after the AN of described HRPD system receives, to described AT feedback " traffic-channel assignment " message, then described AT just disconnects and being connected of described WiMAX system, and be connected with described HRPD system made air interface according to described " traffic-channel assignment " message of receiving, thereby switch to described HRPD system.
Further, described " connection request ", " routing update " and " traffic-channel assignment " message all are the described IP tunnel transmission between the AN of AN by described WiMAX system and described HRPD system.
In the present invention, there is the AT (accessing terminal) that is connected before switching to the HRPD system, just to carry out session negotiation by the IP tunnel between system and HRPD system with the WiMAX system, and established PPP (Point to Point Protocol, point to point protocol) and connected.Like this, when AT switches to the HRPD system from the WiMAX system, only need set up air interface and connect, greatly reduce the break period of business in the handoff procedure.
Description of drawings
Fig. 1 is application example AT of the present invention switches to the HRPD system from the WiMAX system flow chart.
Embodiment
Design of the present invention is as follows: have the access terminal AT that is connected just to carry out session negotiation by the IP tunnel between system and HRPD system before switching to the HRPD system with the WiMAX system, and establish the PPP connection.Like this, when AT switches to the HRPD system from the WiMAX system, only need set up air interface and connect, can greatly reduce break period professional in the handoff procedure.
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in detail.
As shown in Figure 1, for application example AT of the present invention from the flow chart that the WiMAX system switches to the HRPD system, comprise the steps:
Step 103 after AT detects above-mentioned adjacent area pilot configuration information, is obtained the IP address of the AN of corresponding HRPD system by DNS (DomainNameSystem, domain name resolution server);
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method that switches to high-speed grouped data system from WiMax system is characterized in that, comprises the steps:
(1) there is access terminal AT that aerial interface is connected before switching to HRPD (high rate packet data) HRPD system, to carry out session negotiation with described HRPD system with micro-wave access global inter communication WiMAX system, and sets up point to point protocol PPP and connect;
(2) when described AT determines to switch to described HRPD system, described AT disconnects with the air interface of described WiMAX system and being connected, and then is connected with described HRPD system made air interface, thereby switches to described HRPD system.
2. method as claimed in claim 1 is characterized in that, step (1) comprises the steps:
(1.1) the access network AN of described WiMAX system broadcasts the pilot configuration information of adjacent HRPD system small area;
(1.2) after the access terminal AT that is connected with described WiMAX system existing air interface detects the pilot configuration information of described HRPD system small area, obtain the IP address of the AN of described HRPD system corresponding to described pilot tone;
(1.3) described AT carries out session negotiation according to the AN of the IP address of the AN of the described HRPD system that obtains and described HRPD system;
(1.4) AN of described AT by described HRPD system sets up PPP with the packet data serving node PDSN of described HRPD system and is connected.
3. method as claimed in claim 2 is characterized in that, in the step (1.2), after described AT obtains the adjacent area pilot configuration information, obtains the IP address of the AN of described HRPD system corresponding to described pilot tone by domain name resolution server DNS.
4. method as claimed in claim 3 is characterized in that, in the step (1.3), the AN of described AT and described HRPD system carries out session negotiation by the IP tunnel of setting up according to described IP address.
5. method as claimed in claim 4 is characterized in that, in the step (1.4), the AN of described AT and described HRPD system sets up being connected of PPP by described IP tunnel with the PDSN of described HRPD system.
6. method as claimed in claim 1 is characterized in that, step (2) afterwards, described AT and Mobile IP home agent MIP HA carry out MIP Binding Update flow process.
7. method as claimed in claim 1, it is characterized in that, in the step (2), when described AT determines to switch to described HRPD system, at first the AN to described HRPD system sends " connection request " and " routing update " message, after the AN of described HRPD system receives, to described AT feedback " traffic-channel assignment " message, then described AT just disconnects with the air interface of described WiMAX system and being connected, and be connected with described HRPD system made air interface according to described " traffic-channel assignment " message of receiving, thereby switch to described HRPD system.
8. method as claimed in claim 7 is characterized in that, described " connection request ", " routing update " and " traffic-channel assignment " message all are by the described IP tunnel transmission between the AN of the AN of described WiMAX system and described HRPD system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810090295 CN101562853B (en) | 2008-04-17 | 2008-04-17 | Method for switching from microwave access worldwide interoperability system to high-speed packet data system |
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| CN 200810090295 CN101562853B (en) | 2008-04-17 | 2008-04-17 | Method for switching from microwave access worldwide interoperability system to high-speed packet data system |
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| CN101562853A CN101562853A (en) | 2009-10-21 |
| CN101562853B true CN101562853B (en) | 2013-03-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102244912A (en) * | 2011-06-24 | 2011-11-16 | 中兴通讯股份有限公司 | Method and system for switching networks |
| CN103546932B (en) | 2012-07-17 | 2016-12-21 | 中国移动通信集团公司 | Method, device, network element and the system of a kind of network switching |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859728A (en) * | 2005-07-20 | 2006-11-08 | 华为技术有限公司 | Method for realizing soft switching and conversation shift between excited state AN in network |
| CN1983905A (en) * | 2006-05-25 | 2007-06-20 | 华为技术有限公司 | Method for creating HRPD network grouped data service with terminal under 1x network |
| CN101022607A (en) * | 2006-02-15 | 2007-08-22 | 华为技术有限公司 | Method and system for enhancing CDMA2000 1X data service alilitry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859728A (en) * | 2005-07-20 | 2006-11-08 | 华为技术有限公司 | Method for realizing soft switching and conversation shift between excited state AN in network |
| CN101022607A (en) * | 2006-02-15 | 2007-08-22 | 华为技术有限公司 | Method and system for enhancing CDMA2000 1X data service alilitry |
| CN1983905A (en) * | 2006-05-25 | 2007-06-20 | 华为技术有限公司 | Method for creating HRPD network grouped data service with terminal under 1x network |
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