CN101754307A - Mobile for carrying out the inter-office switching between mobile switching center and mobile communication network - Google Patents
Mobile for carrying out the inter-office switching between mobile switching center and mobile communication network Download PDFInfo
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- CN101754307A CN101754307A CN200910189151A CN200910189151A CN101754307A CN 101754307 A CN101754307 A CN 101754307A CN 200910189151 A CN200910189151 A CN 200910189151A CN 200910189151 A CN200910189151 A CN 200910189151A CN 101754307 A CN101754307 A CN 101754307A
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Abstract
The invention relates to a mobile switching center comprising a forwarding module, a flag bit setting module and a judging module, wherein the forwarding module is used for forwarding a message received by the mobile switching center to a mobile switching center on an outgoing side; the flag bit setting module is used for setting flag bits in a data area for marking the received message; and the judging module is used for establishing the inter-office bearing between the mobile switching center and the mobile switching center on the outgoing side, and judging whether the mobile switching center receives a message by checking the flag bit after entering the state of access waiting of a mobile phone. The invention further provides a method for carrying out the inter-office switching in the mobile communication network. The method for carrying out the the inter-office switching between the mobile switching center and the mobile communication network can increase the success rate of relocation when a gateway mobile switching center exists between the mobile switching center on the outgoing side and the mobile switching center on the ingoing side.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the method for carrying out inter-office switchover in the moving communicating field.
Background technology
In the WCDMA network, stride (the MobileServices Switching Centre of mobile switching centre in mobile subscriber's calling procedure, when move the lane place MSC), because of the wireless network signal mass change, (Radio Network System RNS) can trigger the interoffice reorientation to keep the good speech quality of active user to Radio Network System.
Arrange according to existing protocol, when the user initiates reorientation, the out side MSC of reorientation is by MAP (Mobile Application Part, MAP) message sends re-positioning request to reorientation Incoming side MSC, reorientation Incoming side MSC can be initiated to the carrying foundation of wireless side and apply for the reorientation number after receiving the Incoming re-positioning request, after the radio bearer of local exchange and reorientation number all are ready to, reply the relocation response message of carrying the reorientation number for the out side MSC of reorientation, the out side MSC of reorientation utilizes the reorientation number, send initial address message (IAM) to reorientation Incoming side MSC, set up the interoffice carrying, insert from reorientation Incoming side MSC until the cellphone subscriber.
But, because the complexity of modern communication networks, usually between out side MSC of reorientation and reorientation Incoming side MSC, also can there be gateway MSC (Gateway Mobile ServicesSwitching Centre, GMSC), if GMSC has adopted and has early sent out Address Complete Message (AddressComplete Message, ACM) mechanism (is after GMSC receives IAM message, return ACM message directly for the out side MSC of reorientation) to reorientation Incoming side MSC forwarding, then can cause IAM message to be later than wireless reorientation and insert message arrival reorientation Incoming side MSC, will produce Incoming reorientation failure this moment.Above-mentioned detailed process sees also Fig. 1.Figure 1 shows that the flow chart of interoffice reorientation failure.
S101, (Radio Network System RNS) initiates re-positioning request to the out side MSC of reorientation to the out side Radio Network System of reorientation.
S102, the out side MSC of reorientation sends re-positioning request to reorientation Incoming side MSC.
S103, reorientation Incoming side MSC sends re-positioning request to reorientation Incoming side RNS, and interoffice carries and (Visiting Location Register VLR) applies for the reorientation number to Visited Location Registor to set up.
S104, reorientation Incoming side RNS sends the re-positioning request response to reorientation Incoming side MSC, and the carrying of expression interoffice is set up and is finished, and distributes the success of reorientation number.
S105, reorientation Incoming side MSC replys the re-positioning request response to the out side MSC of reorientation, and this request response carries the reorientation number of firm distribution, and reorientation Incoming side MSC enters and waits for the interoffice connection status then.
S106, the out side MSC of reorientation sends IAM by GMSC to reorientation Incoming side MSC according to the reorientation number that receives.
S107, GMSC adopt Address Complete Message morning, and (Address Complete Message, ACM), treatment mechanism replys ACM at first for the out side MSC of reorientation.
S108, the out side MSC of reorientation send reorientation for the out side RNS of reorientation and carry out, and need then to begin to insert from reorientation Incoming side RNS from the cellphone subscriber that the out side MSC of reorientation switches to reorientation Incoming side MSC.
Step S109, S110 reorientation Incoming side MSC receive that relocation detect-message and reorientation that reorientation Incoming side RNS sends finish message, because state machine was in and waited for that interoffice connects this moment, do not handle relocation detect-message and message is finished in reorientation.
Step S111, GMSC transmit IAM to reorientation Incoming side MSC, and reorientation Incoming side MSC finishes and sets up the interoffice carrying.
Step S112, reorientation Incoming side MSC replys ACM, and enters wait mobile phone access state.
Step S113, after GMSC received ACM, because sent ACM to the out side MSC of reorientation, (Call Progress Message, CPG) carrying of the out side MSC of notice reorientation interoffice was set up successfully with call progress message.
Step S114, reorientation Incoming side MSC is waiting for that still continuing the wait reorientation under the mobile phone access state finishes message, and is finally overtime, and reorientation Incoming side MSC sends the out side MSC of reorientation failed message notice reorientation reorientation failure.
In above-mentioned reorientation failure procedures, still be in to have received when waiting for the interoffice connection status at reorientation Incoming side MSC and reset detect-message or message is finished in reorientation, and above-mentioned message is not handled, only enter under the wait mobile phone access state and just can handle, therefore cause the reorientation failure.
Summary of the invention
The object of the present invention is to provide the method for carrying out inter-office switchover in a kind of mobile switching centre and the mobile communications network, improve the reorientation success rate between out side MSC of reorientation and the reorientation Incoming side MSC, more effectively to utilize the radio bearer resources of mobile communications network.
The invention provides a kind of mobile switching centre, comprise forwarding module, be used for mobile switching centre enter wait for receive message under the interoffice connection status after, give out side shifting switching center with forwards; Marker bit is provided with module, is used in the data field marker bit mark being set and has received message; Judge module is used for setting up the interoffice carrying in mobile switching centre and out side shifting switching center, and enter wait for the mobile phone access state after, judge by the check mark position whether mobile switching centre receives message.
Preferably, above-mentioned mobile switching centre also comprises the response message sending module, when being used for receiving message in mobile switching centre, sends response message to out side shifting switching center.
Preferably, above-mentioned message is that message is finished in relocation detect-message or reorientation.
Preferably, above-mentioned judge module is used to also judge whether described message is that message is finished in relocation detect-message or reorientation.
Preferably, above-mentioned marker bit is provided with module and also is used for when described message is relocation detect-message, the marker bit mark is set in the data field has received described relocation detect-message; And be used for finishing when surveying message for resetting in described message, the marker bit mark is set in the data field has received described resetting and finish message.
The present invention also provides the method for carrying out inter-office switchover in a kind of mobile communications network, comprising: Incoming side shifting switching center enters and waits for the interoffice connection status; Incoming side shifting switching center gives out side shifting switching center with forwards after waiting under the interoffice connection status, receiving message, and the marker bit mark is set in the data field has received message; Incoming side shifting switching center and out side shifting switching center set up the interoffice carrying, and enter and wait for the mobile phone access state; Whether Incoming side shifting switching center receives message waiting for the marker bit of checking the data field under the mobile phone access state to judge Incoming side shifting switching center, if receive, then to out side shifting switching center transmission response message, and enters the calling stable state.
Preferably, if above-mentioned Incoming side shifting switching center is waiting under the interoffice connection status, the message that receives is relocation detect-message, then Incoming side shifting switching center is forwarded to out side shifting switching center by MAP message with relocation detect-message, and the marker bit mark is set in the data field has received relocation detect-message.
Preferably, the method of carrying out inter-office switchover in the above-mentioned mobile communications network also comprises Incoming side shifting switching center after out side shifting switching center sends response message, and Incoming side shifting switching center waits under the mobile phone access state that reorientation finishes the step of message waiting for.
Preferably, if above-mentioned Incoming side shifting switching center is waiting under the interoffice connection status, the message that receives is that message is finished in reorientation, then out side shifting switching center finishes forwards to Incoming side shifting switching center by MAP message with reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
Preferably, if above-mentioned Incoming side shifting switching center is waiting under the interoffice connection status, the message that receives comprises that relocation detect-message and reorientation finish message, then out side shifting switching center finishes forwards to Incoming side shifting switching center by MAP message with reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
The method of carrying out inter-office switchover in mobile switching centre that the embodiment of the invention provides and the mobile communications network can overcome when carrying out inter-office switchover in the existing standard agreement, the message that under wait interoffice connection status, is untreated and receives when the mobile switching centre of Incoming side, and the problem of the inter-office switchover that causes failure, improve the reorientation success rate when having GMSC between out side MSC of reorientation and the reorientation Incoming side MSC, more effectively to utilize the radio bearer resources of mobile communications network.
Description of drawings
Figure 1 shows that the flow chart of interoffice reorientation failure.
Figure 2 shows that the structural representation of a kind of embodiment of mobile switching centre of the present invention.
Figure 3 shows that the flow chart of a kind of embodiment of method that carries out inter-office switchover in the mobile communications network of the present invention.
Figure 4 shows that the flow chart of the another kind of embodiment of method that carries out inter-office switchover in the mobile communications network of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
Figure 2 shows that the structural representation of a kind of embodiment of mobile switching centre of the present invention.
The mobile switching centre that present embodiment provides (MSC) 10 can be applicable in the mobile communications networks such as WCDMA or GSM, simultaneously MSC10 can wait for increasing under the interoffice connection status and message is finished in the relocation detect-message that receives or reorientation transmitted processing being in, initial address message (IAM) and the full message of return address (ACM) is afterwards between successful office of acceptance to make out side MSC, receive and send overweight detection and localization message or message is finished in reorientation if judge, then send response message (ANM) and give out side MSC, last call migration is to stable state.The MSC10 concrete structure that present embodiment provides is as follows:
MSC10 comprises that forwarding module 101, marker bit are provided with module 102, judge module 103 and response message sending module 104.
Marker bit is provided with module 102 and is used in the data field marker bit mark being set and has received message.When this message was relocation detect-message, marker bit was provided with module 102 and the marker bit mark is set in the data field has received relocation detect-message; When this message is finished when surveying message for resetting, marker bit is provided with module 102 and the marker bit mark is set in the data field has received to reset and finish message.
Preferably, in another embodiment, MSC10 is provided with module 102 and the judge module 103 except comprising forwarding module 101, marker bit, also comprises response message sending module 104 and state setting module 105.Response message sending module 104 is used for when MSC10 receives this message, sends response message to out side MSC.State setting module 105 is used to be provided with MSC and enters wait interoffice connection status, waits for the mobile phone access state or call out stable state.
The MSC10 that the embodiment of the invention provides can overcome when carrying out inter-office switchover in the existing standard agreement, the message that under wait interoffice connection status, is untreated and receives when the mobile switching centre (MSC) of Incoming side, and the problem of the inter-office switchover that causes failure, improve the reorientation success rate when having gateway MSC (GMSC) between out side MSC of reorientation and the reorientation Incoming side MSC, more effectively to utilize the radio bearer resources of mobile communications network.
Figure 3 shows that the flow chart of a kind of embodiment of method that carries out inter-office switchover in the mobile communications network of the present invention.
The method of carrying out inter-office switchover in the mobile communications network that present embodiment provides can be applicable in the mobile communications networks such as WCDMA or GSM, Incoming side MSC can wait for increasing under the interoffice connection status and message is finished in the relocation detect-message that receives or reorientation transmitted processing being in, initial address message (IAM) and the full message of return address (ACM) is afterwards between successful office of acceptance to make out side MSC, receive and send overweight detection and localization message or message is finished in reorientation if judge, then send response message (ANM) and give out side MSC, last call migration is to stable state, and is specific as follows:
Step S301, Incoming side MSC enter and wait for the interoffice connection status.
Step S302, Incoming side MSC give out side MSC with forwards after waiting under the interoffice connection status, receiving message, and the marker bit mark is set in the data field has received described message.
Step S303, Incoming side MSC and out side MSC set up the interoffice carrying, and enter wait mobile phone access state.
Step S304, whether Incoming side MSC receives described message waiting for the marker bit of checking described data field under the mobile phone access state to judge Incoming side MSC, if receive, then sends response message to out side MSC, and enters the calling stable state.If Incoming side MSC check to find not receive that reorientation detection and reorientation finish message, then continue to wait for, until finishing inter-office switchover or reorientation.If Incoming side MSC wait timeout replys the reorientation failure then for out side MSC, the cancellation reorientation discharges the channel resource that Incoming side MSC takies.
In the present embodiment, if Incoming side MSC is waiting under the interoffice connection status, the message that receives is relocation detect-message, then Incoming side MSC is forwarded to out side MSC by MAP message with relocation detect-message, and the marker bit mark is set in the data field has received relocation detect-message; Incoming side MSC sends response message to out side MSC then, and enters and wait for that the mobile phone access state waits for that reorientation finishes message.
If Incoming side MSC is waiting under the interoffice connection status, the message that receives is that message is finished in reorientation, then out side MSC finishes forwards to Incoming side MSC by MAP message with reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
If Incoming side MSC is waiting under the interoffice connection status, the message that receives comprises that relocation detect-message and reorientation finish message, in other words, Incoming side MSC had not only received relocation detect-message but also had received reorientation and finished message, then out side MSC finishes forwards to Incoming side MSC by MAP message with reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
The method of carrying out inter-office switchover in the mobile communications network that the embodiment of the invention provides can overcome when carrying out inter-office switchover in the existing standard agreement, when the MSC of Incoming side is waiting for the message that is untreated and receives under the interoffice connection status, and the problem of the inter-office switchover that causes failure, improve the reorientation success rate when having GMSC between out side MSC of reorientation and the reorientation Incoming side MSC, more effectively to utilize the radio bearer resources of mobile communications network.
Figure 4 shows that the flow chart of the another kind of embodiment of method that carries out inter-office switchover in the mobile communications network of the present invention.
In the present embodiment, will be example explanation the present invention carries out inter-office switchover in the WCDMA mobile communications network process with the WCDMA mobile communication system.What should work as explanation is, the method of the inter-office switchover in the present embodiment is applicable to that equally also gsm mobile communication system is carrying out Incoming when switching, the switching detection message that Incoming side MSC receives and switch the position and finish the situation that the time of message leads to the failure early than IAM message.
Step S401, (Radio Network System RNS) initiates re-positioning request to the out side MSC of reorientation to the out side Radio Network System of reorientation.
Step S402, the out side MSC of reorientation sends re-positioning request to reorientation Incoming side MSC.
Step S403, reorientation Incoming side MSC sends re-positioning request to reorientation Incoming side RNS, and interoffice carries and (Visiting Location Register VLR) applies for the reorientation number to Visited Location Registor to set up.
Step S404, reorientation Incoming side RNS sends the re-positioning request response to reorientation Incoming side MSC, and the carrying of expression interoffice is set up and is finished, and distributes the success of reorientation number.
Step S405, reorientation Incoming side MSC replys the re-positioning request response to the out side MSC of reorientation, and this request response carries the reorientation number of firm distribution, and reorientation Incoming side MSC enters and waits for the interoffice connection status then.
Step S406, the out side MSC of reorientation sends IAM by GMSC to reorientation Incoming side MSC according to the reorientation number that receives.
Step S407, GMSC adopt Address Complete Message morning, and (Address Complete Message, ACM), treatment mechanism replys ACM at first for the out side MSC of reorientation.
Step S408, the out side MSC of reorientation send reorientation for the out side RNS of reorientation and carry out, and need then to begin to insert from reorientation Incoming side RNS from the cellphone subscriber that the out side MSC of reorientation switches to reorientation Incoming side MSC.
Step S409 is in the relocation detect-message that the reorientation Incoming side MSC that waits for the interoffice connection status receives that reorientation Incoming side RNS sends.
Step S410, (Mobile Application Part, MAP) message is forwarded to out side MSC with relocation detect-message to reorientation Incoming side MSC, and the marker bit mark is set in the data field has received relocation detect-message by MAP.
Step S411 is in the reorientation that the reorientation Incoming side MSC that waits for the interoffice connection status receives that reorientation Incoming side RNS sends and finishes message.
Step S412, reorientation Incoming side MSC finishes forwards to out side MSC by MAP message with reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
Step S413, reorientation Incoming side MSC receive the IAM that GMSC transmits, and begin to set up the interoffice carrying.
Step S414, reorientation Incoming side MSC finish and set up the interoffice carrying, reply ACM to GMSC.
Step S415, GMSC receive that (Call Progress Message, CPG), the out side MSC of reorientation enters and waits for the mobile phone access state to the out side MSC transmission of reorientation call progress message behind the ACM.
Step S416, reorientation Incoming side MSC is waiting for whether marker bit inspection that the mobile phone access state is provided with in going into down according to the data field received that reorientation finished message, if just received and sent response message (Answer Message to GMSC, ANM), reorientation Incoming side MSC enters the calling stable state.
Step S417, GMSC transmit ANM and give reorientation out side MSC, finish inter-office switchover.
The method of carrying out inter-office switchover in the mobile communications network that the embodiment of the invention provides can overcome when carrying out inter-office switchover in the existing standard agreement, when the MSC of Incoming side is waiting for the message that is untreated and receives under the interoffice connection status, and the problem of the inter-office switchover that causes failure, improve the reorientation success rate when having GMSC between out side MSC of reorientation and the reorientation Incoming side MSC, more effectively to utilize the radio bearer resources of mobile communications network.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a mobile switching centre is characterized in that, comprising:
Forwarding module, be used for described mobile switching centre enter wait for receive message under the interoffice connection status after, give out side shifting switching center with described forwards;
Marker bit is provided with module, is used in the data field marker bit mark being set and has received described message;
Judge module is used for setting up the interoffice carrying in described mobile switching centre and out side shifting switching center, and enter wait for the mobile phone access state after, judge by checking described marker bit whether described mobile switching centre receives described message.
2. mobile switching centre as claimed in claim 1 is characterized in that, also comprises the response message sending module, when being used for receiving described message in described mobile switching centre, sends response message to out side shifting switching center.
3. mobile switching centre as claimed in claim 1 is characterized in that, described message is that message is finished in relocation detect-message or reorientation.
4. mobile switching centre as claimed in claim 3 is characterized in that, described judge module is used to also judge whether described message is that message is finished in relocation detect-message or reorientation.
5. mobile switching centre as claimed in claim 1 is characterized in that, described marker bit is provided with module and also is used for when described message is relocation detect-message, the marker bit mark is set in the data field has received described relocation detect-message; And be used for finishing when surveying message for resetting in described message, the marker bit mark is set in the data field has received described resetting and finish message.
6. the method for carrying out inter-office switchover in the mobile communications network is characterized in that, comprising:
Incoming side shifting switching center enters and waits for the interoffice connection status;
Incoming side shifting switching center gives out side shifting switching center with described forwards after waiting under the interoffice connection status, receiving message, and the marker bit mark is set in the data field has received described message;
Incoming side shifting switching center and out side shifting switching center set up the interoffice carrying, and enter and wait for the mobile phone access state;
Incoming side shifting switching center is waiting for the marker bit of checking described data field under the mobile phone access state, to judge whether described Incoming side shifting switching center receives described message, if receive, then send response message, and enter the calling stable state to out side shifting switching center.
7. the method for carrying out inter-office switchover in the mobile communications network as claimed in claim 1, it is characterized in that, if Incoming side shifting switching center is waiting under the interoffice connection status, the described message that receives is relocation detect-message, then described Incoming side shifting switching center is forwarded to out side shifting switching center by MAP message with described relocation detect-message, and the marker bit mark is set in the data field has received relocation detect-message.
8. the method for carrying out inter-office switchover in the mobile communications network as claimed in claim 7, it is characterized in that, also comprise described Incoming side shifting switching center after described out side shifting switching center sends response message, described Incoming side shifting switching center waits under the mobile phone access state that reorientation finishes the step of message waiting for.
9. the method for carrying out inter-office switchover in the mobile communications network as claimed in claim 6, it is characterized in that, if Incoming side shifting switching center is waiting under the interoffice connection status, the described message that receives is that message is finished in reorientation, then described out side shifting switching center finishes forwards to Incoming side shifting switching center by MAP message with described reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
10. the method for carrying out inter-office switchover in the mobile communications network as claimed in claim 6, it is characterized in that, if Incoming side shifting switching center is waiting under the interoffice connection status, the described message that receives comprises that relocation detect-message and reorientation finish message, then described out side shifting switching center finishes forwards to Incoming side shifting switching center by MAP message with described reorientation, and the marker bit mark is set in the data field has received reorientation and finish message.
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| CN101980568A (en) * | 2010-10-26 | 2011-02-23 | 中兴通讯股份有限公司 | Method and system for realizing repositioning |
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