CN1292552C - Execution method for switching from WCDMA system to personal access phone system - Google Patents
Execution method for switching from WCDMA system to personal access phone system Download PDFInfo
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- CN1292552C CN1292552C CN 200310116269 CN200310116269A CN1292552C CN 1292552 C CN1292552 C CN 1292552C CN 200310116269 CN200310116269 CN 200310116269 CN 200310116269 A CN200310116269 A CN 200310116269A CN 1292552 C CN1292552 C CN 1292552C
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- wcdma
- phs
- message
- travelling carriage
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Abstract
The present invention discloses an execution method for switch from a WCDMA system to a PHS system. The present invention comprises that the: WCDMA system transmits switching commands among systems to mobile stations requiring switch; after the mobile stations receive the commands, an appropriate cell is searched in the PHS system, and a link channel establishment request is initiated to a base station controller of the appropriate cell; if the base station controller of the PHS system can allocate channel establishment connection, the message for requiring switch is sent to a core switching network of the base station controller; after the core switching network of the PHS system confirms that the switch requesting message from the mobile station of the WCDMA system is received, the core switching network of the PHS system and the core switching network of the WCDMA system complete the service transference of the current mobile station; the core network in the WCDMA system releases the original allocated resource. The method can realize switch processing from the WCDMA system to the PHS system to make mobile station with a WCDMA and PHS double receiver and transmitter easily switched from the WCDMA system to the PHS system.
Description
Technical field
The present invention relates to Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access) system (hereinafter to be referred as WCDMA) and PHS system (personal handyphone system, Personal Handyphone System) changing method, the especially WCDMA between is to the manner of execution of switching between the PHS system.
Background technology
Extensive use and fast development along with mobile communcations system, a lot of key technologies in the mobile system also are gradually improved, when realizing user's proper communication, also must consider how to obtain best performance, make system and subscriber equipment can both obtain gratifying preferably effect.
In China, will be widely used very soon as one of the main standard of 3G (Third Generation) Moblie WCDMA, therefore the PHS system situation of WCDMA and PHS two net coexistences will occur in China also ubiquity at present simultaneously.In the case, realize that PHS is the common expectation of operator and communication user institute to seamlessly transitting of WCDMA, the problem that solves a key of WCDMA and the real coexistence of PHS two nets is the switching between these two systems of realization.In the related protocol standard of 3GPP, stipulate the mutual switching between second-generation systems such as WCDMA system and GSM, but do not had the switching between regulation and PHS system.The same switching of in the relevant criterion of PHS system, also not considering between PHS system and WCDMA system.The user of PHS system if can realize switching between two systems in the zone that the WCDMA system covers, can guarantee PHS user's performance better, also simultaneously can produce more benefit for the operator.
The WCDMA system is relatively short at the development time of various countries, and the PHS system is not the unified standard in the whole world, its commercial countries and regions are less, and are therefore also less relatively for the research of switching between two systems, also do not having data to look into aspect the specific implementation of switching between these two systems at present.
From the handover mechanism of system itself, there are bigger difference in WCDMA system and PHS system.In the mutual handoff procedure of realizing between WCDMA and PHS system, be an essential link from the switching of WCDMA to PHS, still there is not concrete solution in the prior art.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of broadband CDMA system to the manner of execution of switching between personal handyphone system, realizes that effective and reasonablely broadband CDMA system is to the switching between personal handyphone system.
Travelling carriage has double receiver-transmitter, after receiving switching command, utilize another transceiver in the PHS system, to seek proper cell and initiate link channel to its base station controller and set up request, this moment former transceiver continue to keep with the WCDMA system between be connected and the normal talking process.
WCDMA provided by the invention may further comprise the steps to the manner of execution of switching between the PHS system:
1) WCDMA system switching command between the travelling carriage transmitting system that needs switch;
2) after travelling carriage receives orders, in the PHS system, seek proper cell and initiate link channel foundation request to its base station controller;
3) if the base station controller of PHS system can connect by allocated channel, then send the message that request is switched to its core switching network, showing has travelling carriage to cut;
4) the core switching network of PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out the mutual of message with the core net of WCDMA to finish the transfer of current mobile station service;
5) finish alternately after, core net in the WCDMA system discharges original resource of distributing.
The core switching network of described step 4) PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out specifically may further comprise the steps alternately of message with the core net of WCDMA:
4.1) the core switching network of PHS system is through judging, find that the travelling carriage that switches is from the WCDMA system, the core switching network of PHS system sends " system asks to switch and carries out " message to the core net of WCDMA system, informs that core net can be transferred to the PHS system with the business that this travelling carriage is carried out in the WCDMA system;
4.2) WCDMA system core net passes to the ongoing business information of this travelling carriage the core switching network of PHS by " handoff response between system " message;
4.3) core switching network among the PHS sends " switching is carried out " message to Target cell place base station controller, the base station controller of notice PHS can and travelling carriage between set up professionally, and can communicate by letter normally.
According to the system design difference, the core switching network of described step 4) PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out the further comprising the steps of alternately of message with the core net of WCDMA:
4.4) base station controller among the PHS sends " switching is finished " message to its core switching network, shows that current mobile station can utilize another transceiver to communicate by letter normally;
4.5) the core switching network of PHS sends " switch between system and finish " message to the core net of WCDMA, switches success between the notice core network system.
Core net in the described step 5) WCDMA system discharges original resource of distributing and specifically may further comprise the steps:
5.1) core net sends to radio network controller and notify it can discharge the message of resource;
5.2) after radio network controller receives message, have the base station that is connected to discharge the Radio Link that this travelling carriage uses with travelling carriage in the notice WCDMA system;
5.3) radio network controller release self all resources relevant with this travelling carriage.
The beneficial effect of the inventive method is that described method logic is reasonable, efficient is higher, can realize the hand-off process of WCDMA system to the PHS system, makes can successfully switch to the PHS system from the WCDMA system by the travelling carriage with WCDMA and PHS double receiver-transmitter.
Description of drawings
Fig. 1 is that the basic flow sheet of carrying out is switched in WCDMA system to PHS system
Fig. 2 is the message interaction process figure that an embodiment is carried out in the switching of WCDMA system to PHS system
Embodiment
Below in conjunction with accompanying drawing the inventive method is described further.
Can implement the travelling carriage that the WCDMA system switches to the PHS system among the present invention must be to possess bimodulus or the multimode terminal that can support WCDMA system and PHS system; and travelling carriage need have double receiver-transmitter; after receiving switching command; utilize another transceiver in the PHS system, to seek proper cell and initiate link channel to its base station controller and set up request, this moment former transceiver continue to keep with the WCDMA system between be connected and the normal talking process.
As shown in Figure 1, the idiographic flow of the inventive method is as follows:
(1) SRNC (Serving Radio Network Controller, service wireless network controller) judgement needs to switch the order that switch the back between the travelling carriage transmitting system, the flow process of switching between start-up system (i.e. 101 steps).The transmission of this message be SRNC thinking be necessary travelling carriage switched to the PHS system after, carry out the first step of message flow.Trigger this judgement and have multiple factor, as: A, according to moving table measuring second-rate to current carrier frequency; B, user and operator are signatory preferentially in the PHS network; The quality of C, PHS system cell is better really; D, artificial requirement.
(2) travelling carriage receive require its order of carrying out switching between system after, utilize another transceiver in the PHS system, to select proper cell, and send link channel to the base station controller at Target cell place and set up request as Target cell.(i.e. 102 steps)
(3) the PHS base station controller is sent out handoff request message (i.e. 103 steps) to the core switching network immediately, and the core switching network of notice PHS has travelling carriage to cut the sub-district that this base stations control district is had jurisdiction over.
(4) PHS system and WCDMA system carry out the transfer (i.e. 104 steps) of interacting message to finish current mobile station service.In this step, the core switching network of PHS system is in the handoff request message of identification from base station controller, and be confirmed to be from the travelling carriage of WCDMA and cut this system, then need to send message (as " switch between system and carry out " message) to the CN of WCDMA system (core net), inform that CN can be transferred to the PHS system with the business that this travelling carriage is carried out in this system, CN is passed to the current ongoing business information of this travelling carriage the core switching network of PHS by message (as " handoff response between system " message) immediately, core switching network in the PHS system sends the base station controller of message (as " switching is carried out " message) notice PHS to Target cell place base station controller then, make its can and travelling carriage between really set up business, and can communicate by letter normally.
(5) CN in the WCDMA system discharges original resource of distributing (i.e. 105 steps).The resource that discharges in the WCDMA system can have dual mode: one, utilize timing mechanism, promptly the core net at WCDMA sends response message (as " handoff response between system " message) afterwards to the PHS system, one timer is set, if there is not the message of handoff failure to return, then CN begins resource release before timer expiry; Two, by the switching return messages (as " switching is finished " message) from the PHS system, CN just begins to carry out resource release work after receiving this message.Resource in this step discharges, and sends " Iu release " message by CN to source RNC (radio network controller), is discharged all related resources that distributed for this travelling carriage originally by source RNC.
Fig. 2 is the message interaction process figure that the embodiment that carries out is switched in WCDMA system to PHS system, and is for convenience of description, as follows to the several symbol descriptions that occur among Fig. 2:
Travelling carriage: travelling carriage.
With travelling carriage the base station controller that is connected is arranged in the PHS-CSC:PHS system.
Core switch in the PHS-IGW:PHS system.
Core net in the CN:WCDMA system.
Source RNC: the radio network controller that connection is arranged before travelling carriage switches.
Idiographic flow is described as follows:
(1) source RNC sends " switching between system " order (i.e. 201 steps) to travelling carriage when decision needs certain travelling carriage to cut to the PHS system from the WCDMA system.
(2) travelling carriage carries out synchronously etc. after the process with the base station in the PHS system, and corresponding base station controller sends " link channel is set up request " in the PHS system.(i.e. 202 steps)
(3) base station controller is under situation about can admit in the PHS system, and then the core switching network to PHS sends " handoff request " message (i.e. 203 steps).
(4) the core switching network of PHS sends " switch between system and carry out " message (i.e. 204 steps) to the core net CN of WCDMA, informs that this travelling carriage of CN can switch, and wishes to obtain this travelling carriage for information about.
(5) CN is arranged among the WCDMA when being necessary, obtain transmission message, with the relevant information of obtaining relevant this travelling carriage (as " ability information " etc.) (promptly 205 going on foot) to source RNC; Source RNC returns its needed relevant information (i.e. 206 steps) to CN.
(6) the core net CN of WCDMA to sending " handoff response is asked by system " message (i.e. 207 steps), informs that it about this travelling carriage for information about to the core switching network of PHS.The core switching network of PHS sends " switching is carried out " message (i.e. 208 steps) to target base station controller immediately.
(7) target base station controller of PHS can with the carrying out after the proper communication of travelling carriage, send " switching is finished " message to the core switching network of PHS, show and switch success (promptly 209 going on foot) between whole system; The core switching network of PHS returns one " handoff completion message between system " (i.e. 210 steps) to the core net CN of WCDMA; Core net sends Iu release message (i.e. 211 steps) to source RNC immediately after receiving that this finishes message, release WCDMA system is all resources of this travelling carriage, comprises ground resource and Radio Resource.
In addition, what need specified otherwise is, message shown in 205 steps, 206 steps, 209 steps, 210 steps, 211 steps all is optional message in the drawings, design conditions according to system, can use flexibly fully, even can not adopt, for example when CN is receiving " between system switch carry out " message from the PHS system, there is no need to obtain related news to source RNC, then (205) step and (206) step can not need.If at CN after the core switching network of PHS system sends " handoff response between system " message, a timer is set, if within this time, travelling carriage does not return the handoff failure order in the WCDMA system, then think and successfully cut system, can save (209) step, (210) step, (211) step among Fig. 2 like this to PHS.
Claims (8)
1. a WCDMA may further comprise the steps to the manner of execution of switching between the PHS system:
1) WCDMA system switching command between the travelling carriage transmitting system that needs switch;
2) travelling carriage has double receiver-transmitter, after receiving orders, utilize another transceiver in the PHS system, to seek proper cell and initiate link channel to its base station controller and set up request, this moment former transceiver continue to keep with the WCDMA system between be connected and the normal talking process;
3) if the base station controller of PHS system can connect by allocated channel, then send the message that request is switched to its core switching network, showing has travelling carriage to cut;
4) the core switching network of PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out the mutual of message with the core net of WCDMA: the core net of informing the WCDMA system can be transferred to the PHS system with the business that this travelling carriage is carried out in the WCDMA system, WCDMA system core net passes to the core switching network of PHS with the ongoing business information of this travelling carriage, and place, the core switching network notification target sub-district base station controller among the PHS can be communicated by letter normally with travelling carriage foundation business;
5) finish alternately after, core net in the WCDMA system discharges original resource of distributing.
2. WCDMA as claimed in claim 1 is to the manner of execution of switching between the PHS system, the trigger condition that it is characterized in that described step 1) WCDMA system switching command between the travelling carriage transmitting system that needs switch is a kind of of following situation or combination: find that by measuring current WCDMA entire system signal quality is relatively poor, need to select the better system of signal quality; Mobile user contracted wishes that travelling carriage is operated in the both economical PHS system as far as possible in the PHS system; As a kind of supplementary means of load control, when the WCDMA system loading is higher, with certain customers cut to other system to reduce system loading and human intervention.
3. WCDMA as claimed in claim 1 is to the manner of execution of switching between the PHS system, it is characterized in that the core switching network of described step 4) PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out the specifically further comprising the steps of alternately of message with the core net of WCDMA:
4.1) the core switching network of PHS system is through judging, find that the travelling carriage that switches is from the WCDMA system, the core switching network of PHS system sends " switch between system and carry out " message to the core net of WCDMA system, informs that core net can be transferred to the PHS system with the business that this travelling carriage is carried out in the WCDMA system;
4.2) WCDMA system core net passes to the ongoing business information of this travelling carriage the core switching network of PHS by " handoff response between system " message;
4.3) core switching network among the PHS sends " switching is carried out " message to Target cell place base station controller, the base station controller of notice PHS can and travelling carriage between set up professionally, and can communicate by letter normally.
4. WCDMA as claimed in claim 3 is to the manner of execution of switching between the PHS system, it is characterized in that the core switching network of described step 4) PHS system acknowledges receipt of be the message that requires to cut of the travelling carriage from the WCDMA system after, carry out the further comprising the steps of alternately of message with the core net of WCDMA:
4.4) base station controller among the PHS sends " switching is finished " message to its core switching network, shows that current mobile station can utilize another transceiver to communicate by letter normally;
4.5) the core switching network of PHS sends " switch between system and finish " message to the core net of WCDMA, switches success between the notice core network system.
5. WCDMA as claimed in claim 1 is to the manner of execution of switching between the PHS system, it is characterized in that core net in the described step 5) WCDMA system discharges original resource of distributing and specifically may further comprise the steps:
5.1) core net sends to radio network controller and notify it can discharge the message of resource;
5.2) after radio network controller receives message, have the base station that is connected to discharge the Radio Link that this travelling carriage uses with travelling carriage in the notice WCDMA system;
5.3) radio network controller release self all resources relevant with this travelling carriage.
6. WCDMA as claimed in claim 3 is characterized in that described step 4.2 to the manner of execution of switching between the PHS system) core net is provided with timer the ongoing business information of this travelling carriage is passed to the core switching network of PHS by " handoff response between system " message after.
7. WCDMA as claimed in claim 6 is to the manner of execution of switching between the PHS system, it is characterized in that it is to carry out when returning as if the message that does not have handoff failure described timer expiry after that core net in the described step 5) WCDMA system discharges original resource of distributing.
8. WCDMA as claimed in claim 4 is to the manner of execution of switching between the PHS system, it is characterized in that it is to carry out receive " switch between system and finish " message in core net after that core net in the described step 5) WCDMA system discharges original resource of distributing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310116269 CN1292552C (en) | 2003-11-15 | 2003-11-15 | Execution method for switching from WCDMA system to personal access phone system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310116269 CN1292552C (en) | 2003-11-15 | 2003-11-15 | Execution method for switching from WCDMA system to personal access phone system |
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| Publication Number | Publication Date |
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| CN1545236A CN1545236A (en) | 2004-11-10 |
| CN1292552C true CN1292552C (en) | 2006-12-27 |
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| CN 200310116269 Expired - Fee Related CN1292552C (en) | 2003-11-15 | 2003-11-15 | Execution method for switching from WCDMA system to personal access phone system |
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| CN101841869B (en) * | 2006-08-09 | 2013-08-14 | 华为技术有限公司 | Exception handling method and system in packet switching process |
| CN101478795B (en) | 2008-04-30 | 2011-07-06 | 华为技术有限公司 | Method, communication system for resource processing and mobile management network element |
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Granted publication date: 20061227 Termination date: 20131115 |