CN101860926B - Method and system for establishing call in switch-in process - Google Patents
Method and system for establishing call in switch-in process Download PDFInfo
- Publication number
- CN101860926B CN101860926B CN200910127807.0A CN200910127807A CN101860926B CN 101860926 B CN101860926 B CN 101860926B CN 200910127807 A CN200910127807 A CN 200910127807A CN 101860926 B CN101860926 B CN 101860926B
- Authority
- CN
- China
- Prior art keywords
- call
- base station
- local exchange
- station controller
- local
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 97
- 230000006854 communication Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 description 9
- 230000011664 signaling Effects 0.000 description 9
- 238000005457 optimization Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The invention provides a method for establishing call in a switch-in process, which comprises the following steps of: when a mobile terminal is switched in a call process and if a mobile switching center judges that the switched mobile terminal and a called opposite party thereof belong to the same base station controller, sending message carrying local call identification to inform the base station controller, and establishing local switch for the mobile terminal and the called opposite party thereof through the base station controller, wherein the local call identification is specified to the base station controller where the mobile terminal and the called opposite party are positioned before switching. The invention also provides a system for establishing the call in the switch-in process. According to the method of the invention, the local switch is established for the double call parties belonging to the same BSC, and the user plane information of the double call parties is directly transmitted without a core network, so that the waste of transmitted resources is reduced.
Description
Technical field
The present invention relates to moving communicating field, particularly, relate to call-establishing method and system in a kind of cut process.
Background technology
At existing global system for mobile communications (Global System for Mobile Communications, referred to as GSM) in, mobile switching centre (Mobile Switching Center, referred to as MSC) and base station controller (Base Station Controller, referred to as BSC) between adopt A interface to carry out communicating (A mouth can be carried on TDM (Time Division Multiplexing, time division multiplexing), also IP can be carried on, for A mouthpiece be loaded in IP situation we be referred to as IPA), and mobile terminal (MobileStation, referred to as MS) and base station (Base Station, referred to as BS) between communicated by air interface Um Interface, in addition, connected by Abis interface between BS and BSC.
MS may switch in communication process, comprises BSC inside and switches and the incision of BSC outside.Wherein, MS in communication process may between the BTS under a BSC, minizone, interchannel switch, we are referred to as BSC inside and switch, and are called for short inner switching.MS also may move to the coverage of another BSC from the coverage of a BSC and switch in communication process, and we are referred to as the incision of BSC outside.
The inside switching flow of GSM, the flow process as IPA as shown in Figure 1.The BSC outside incision flow process of GSM, as shown in Figure 2, is cut into another BSC for user from a BSC.No matter at present in gsm, in link setup process, carry out in the process assigned at A mouth, can give each call distribution user ID, be TDM calling or IP calling.
At present in the inside switching flow of GSM, all will set up the user face path of from BSC to MGW (MediaGateway, media gateway), then to the user face path of call peer, the user face of calling both sides be coupled together by MGW.In the BSC outside incision flow process of GSM, all will set up the user face path from BSC to MGW, then by the user face path of MGW to call peer place BSC, the user face of calling both sides is coupled together.
When in inner handoff procedure, when calling both sides is all under same BSC, and when the MS of outside incision is after cutting and when call peer is under same BSC, just there will be BSC and first send user face to MGW, MGW sends back user face the situation of former BSC again, as shown in Figure 3, the waste of transfer resource is caused.
Summary of the invention
The technical problem to be solved in the present invention is to provide call-establishing method and system in a kind of cut process, reduces the waste of transfer resource.
In order to solve the problem, the invention provides call-establishing method in a kind of cut process, when mobile terminal switches in communication process, if this mobile terminal and its call peer belong to same base station controller after mobile switching centre judges switching, then send the message of carrying local call mark and inform described base station controller, described base station controller is that described mobile terminal and its call peer set up local exchange, and described local call mark has been assigned to the base station controller at its call peer place of this mobile terminal before the handover.
Further, said method also can have following characteristics, described base station controller is when receiving mobile switching centre and informing that mobile terminal and its call peer belong to same base station controller, also judge whether to set up local exchange, when judging to set up local exchange, sending local exchange and can set up information to mobile switching centre; Mobile switching centre is receiving after local exchange can set up information, the transmission local exchange that chooses the right moment sets up order to base station controller, and base station controller is just that described mobile terminal and its call peer set up local exchange internal user face link receiving after local exchange sets up order.
Further, said method also can have following characteristics, described in switch to base station controller inside switch, described method specifically comprises:
When mobile switching centre receives inner handover request message, when judging that described mobile terminal and its call peer belong to same base station controller, send inner switching command to base station controller, in described inner switching command, carry local call mark;
Described base station controller, according to the local call mark in described inner switching command, when judgement can set up local exchange, carries local exchange and can set up mark in the handoff completion message sending to mobile switching centre;
After described mobile switching centre receives and can set up the handoff completion message of mark with local exchange, send local exchange to base station controller and set up order;
Described base station controller receives after local exchange sets up order and sets up local exchange internal user face link.
Further, said method also can have following characteristics, described in switch to base station controller outside incision, described method specifically comprises:
Mobile switching centre, before transmission incision request message, judges whether described mobile terminal and its call peer belong to same base station controller, if belonged to, carries local call mark in described incision request message;
When described base station controller can set up local exchange according to the local call mark judgement in described incision request message, complete in message sending to the incision of mobile switching centre and carry local exchange and can set up mark;
Described mobile switching centre receives after the incision can setting up mark with local exchange completes message, sends local exchange set up order to base station controller;
Described base station controller receives after local exchange sets up order and sets up local exchange internal user face link.
Further, said method also can have following characteristics, after local exchange internal user face link set up by described base station controller, also send local exchange and complete message to mobile switching centre, described mobile switching centre receives after described local exchange completes message, removes described mobile terminal and the user face path of its call peer from base station controller to described mobile switching centre.
Further, said method also can have following characteristics, described base station controller can set up local exchange according to judging whether as under type: base station controller according to as described in local call identify, search and whether there is the calling marking matched with described local call, if exist, then local exchange can be set up;
Wherein, described local call is designated unique serial number, or described local call is designated call identification Call ID or the circuit identifier CIC of call peer.
Further, said method also can have following characteristics, described base station controller is that described mobile terminal distributes the channel type identical with described call peer and Speech version, or the channel type of described mobile terminal and its call peer and Speech version are mated by TC conversion by described base station controller.
Further, said method also can have following characteristics, described base station controller is the channel type and Speech version that described mobile terminal distributes that this mobile terminal and its call peer all support, and initiates inner switching to this call peer and make it be switched on this channel type and Speech version.
The present invention also provides call set-up systems in a kind of cut process, and described system comprises base station controller and mobile switching centre, wherein,
Described mobile switching centre, when switching in communication process for mobile terminal, when after judging switching, this mobile terminal and its call peer belong to same base station controller, then send the message of carrying local call mark and inform described base station controller, described local call mark has been assigned to the base station controller at its call peer place of described mobile terminal before the handover;
Described base station controller, when belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, for described mobile terminal and its call peer set up local exchange.
Further, said system also can have following characteristics, described base station controller, when also belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, judge whether to set up local exchange, send local exchange when judging to set up local exchange and can set up information to described mobile switching centre, after receiving local exchange foundation order, just set up local exchange for described mobile terminal and its call peer;
Described mobile switching centre, after the local exchange also sent for As-received station control can set up information, chooses the right moment and sends local exchange foundation order to base station controller.
The present invention, in handoff procedure, for the calling both sides belonging to same BSC after switching sets up local exchange, is not directly transmitted the user plane information of calling both sides, thus decreases the waste of transfer resource by core net.
Accompanying drawing explanation
Fig. 1 is inner switching flow of the prior art.
Fig. 2 is BSC of the prior art outside incision flow process.
When Fig. 3 is inner switching or outside incision in prior art, Access Network and core net transmit the schematic diagram in user face.
Fig. 4 is the schematic diagram in Access Network after having carried out local exchange function and core net transmission user face.
Fig. 5 is in inner handoff procedure, to the signaling process figure that inner switching command and handoff completion message are optimized.
Fig. 6 is in inner handoff procedure, and MSC informs by local call mark the local call that BSC communicates with each other, and BSC judges to carry the flow chart that local exchange can set up mark during can set up local exchange has also changed to MSC switchback.
Fig. 7 is in inner handoff procedure, and MSC can set up after mark knows that local call can be set up by local exchange, and initiate local call to BSC and set up order, BSC sets up the flow chart of local exchange.
Fig. 8 is in inner handoff procedure, MSC by local call mark inform the local call that BSC communicates with each other, BSC judge can use TC set up local exchange and give MSC switchback changed in carry the flow chart that local exchange can set up mark.
Fig. 9 is in the outside cut process of BSC, to the signaling process figure that incision request message is optimized.
Figure 10 is that MSC informs by local call mark the local call that BSC communicates with each other in the outside cut process of BSC, and BSC judgement can be set up local exchange and enter request-reply to MSC switchback and wherein be carried the flow chart that local exchange can set up mark.
Figure 11 is in the outside cut process of BSC, and MSC can set up after mark knows that local call can be set up by local exchange, and initiate local call to BSC and set up order, BSC sets up the flow chart of local exchange.
Figure 12 is in the outside cut process of BSC, MSC informs by local call mark the local call that BSC communicates with each other, after BSC initiates inner switching to call peer, judge to set up local exchange and enter request-reply to MSC switchback and wherein carry the flow chart that local exchange can set up mark.
Figure 13 is in the outside cut process of BSC, MSC informs by local call mark the local call that BSC communicates with each other, and BSC judges to initiate inner switching judging and can set up local exchange and enter request-reply and wherein carry the flow chart that local exchange can set up mark to MSC switchback by call peer.
Figure 14 is in the outside cut process of BSC, and MSC can set up after mark knows that local call can be set up by local exchange, initiates local call set up order to BSC, and BSC is by initiating call peer innerly to switch the flow chart setting up local call.
Figure 15 is that MSC informs by local call mark the local call that BSC communicates with each other in the outside cut process of BSC, and BSC judges TC can be used to set up local exchange and enter request-reply to MSC switchback wherein to carry the flow chart that local exchange can set up mark.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Central idea of the present invention is, to the mobile terminal switching (comprising inner switching and outside incision) in communication process, if mobile terminal and its call peer are in same BSC after switching, then for this mobile terminal and its call peer set up local exchange, realize the function of local call local exchange, as shown in Figure 4, for the calling under same BSC, directly do not transmitted the user plane information of calling both sides by core net, thus decrease the waste of transfer resource.
In the present invention, MSC is except completing existing protocol standard function, need when call setup to identify calling both sides, to represent that this is a pair calling, we are referred to as local call mark, local call mark can represent with a unique serial number, and also can indicate with the Call Identifier (call identification) of call peer or CIC (circuit identifier), the former just can distribute unitedly when call setup; The Call Identifier of the latter, i.e. original Call ID (being carried on the A mouth calling on IP Transport for mark), the CIC (Circuit Identity Codec) of the latter, i.e. original circuit identifier (being carried on the A mouth calling on TDM Transport for mark).MSC is when receiving inner handover request (Internal Handover Required) message or before sending incision request (Handover Request) message, judge whether this calling and call peer are local calls, determination methods belongs to prior art, if then add identifier for identifying local call in inner switching command (Intemal Handover Command) message or incision request message, it is local call that this identifier is called out for another of informing under this calling of BSC and this BSC.
Be described in two kinds of situation below, inner switching is cut with outside.
(1) inner switching
The invention provides a kind of processing method of call information, specific as follows,
MSC is when receiving inner handover request (Intemal Handover Required) message, need whether to judge under same BSC with the other side of calling this MS, evaluation algorithm belongs to prior art, if can local call be formed after finding, in the inside switching command (InternalHandover Command) issuing BSC, then add identifier for identifying local call and local call mark, it is local call that this local call mark is called out for another of informing under this calling of BSC and this BSC.
Wherein, if use unique serial number to identify as local call, then in call establishment (call setup before referring to switch), need BSC local call mark being issued calling and called place, so that when switching, BSC finds call peer by the local call mark in inner switching command.If use Call Identify to identify as local call, then when call setup, can carry or not carry local call mark, when switching, BSC finds call peer by the local call mark in inner switching command.Local call mark has been assigned to the base station controller at the call peer place of mobile terminal before the handover.
BSC by the local call mark in inner switching command, know this calling and another to call out be local call.BSC is identified at the other side of internal searching calling according to local call, and judge whether to set up local exchange, if existed and the marking matched calling of this local call, can local exchange be set up, then complete in (Handover Complete) message in the switching of issuing MSC and carry local exchange if set up local exchange and can set up information (as carry a local exchange can set up mark).
MSC, after receiving and can setting up the handoff completion message of mark with local exchange, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after local exchange sets up order and sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
Embodiment one
According to the embodiment of the present invention, provide a kind of method, for being all that when providing service by same BSC, MSC informs that this MS of BSC and its call peer are all provide service by this BSC in inner handoff procedure when calling both sides after inner switching.This process is the optimization to existing inner exchanging flow process.
As Fig. 6, shown in 7, comprising:
Step 601, MSC receives inner handover request message;
Step 602, whether MSC is that local call judges to calling, if finding is local call, performs step 603, otherwise, perform step 604;
Step 603, MSC sends inner switching command to BSC, carries local call mark, perform step 605 in this inner switching command;
Wherein, carrying out in caller and called call establishment, whether MSC is that local call judges to calling, if find it is local call, MSC utilizes local call to identify, this local call mark is a unique serial number, distributes (having issued the serving BS broadcasts C of calling both sides in the assignment message when call setup) when call setup.
Step 604, MSC sends inner switching command to BSC, does not carry local call mark, perform step 605 in this inner switching command;
Step 605, whether BSC, after receiving inner switching command, judges with local call mark in inner switching command, if with, perform step 606, otherwise, perform step 608;
Step 606, BSC searches whether there is the calling marking matched with the local call that carries in inner switching command for all-calls, if exist, performs step 607, otherwise, perform step 608;
Step 607, BSC thinks this calling and inner two local calls of calling for communicating with each other switched.When BSC is call distribution channel type and the Speech version of inner exchanging, distributes the channel type identical with Speech version with the channel type of call peer and Speech version, set up local exchange to facilitate.BSC carries local exchange in the handoff completion message of replying to MSC can set up mark, performs step 701;
Step 608, BSC thinks that this calling is not local call, can set up mark, performing step 701 to not carrying local exchange in the handoff completion message that MSC replys;
Step 701, MSC receives handoff completion message;
Step 702, MSC judges whether can set up mark with local exchange in handoff completion message, if had, performs step 703, otherwise, perform step 706;
Step 703, MSC thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity to BSC and send local exchange foundation order.
Step 704, BSC receives after local exchange sets up order, sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
Step 705, MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity, terminate.
Step 706, performs existing procedure, terminates.
Embodiment two
According to the embodiment of the present invention, reoffered a kind of method, for when calling both sides after calling one side inside switches is all by same BSC service, in inner exchanging process, MSC informs that this MS of BSC and its call peer are all the services provided by this BSC.This process is the optimization to existing inner exchanging flow process.
Concrete, carrying out in calling and called call establishment, whether MSC is that local call judges to calling, if find it is local call, local call is then utilized to identify, this local call mark is the Call Identifier of call peer, Call Identifier herein, i.e. original CallID (being carried on the A mouth calling on IP Transport for mark).
When if to have switched rear both call sides inner be local call, MSC carries local call and identifies in the inside switching command sending to BSC.
After BSC receives inner switching command, search whether there is the calling marking matched with the local call wherein carried for all-calls, if exist, BSC thinks two local calls of the calling of this calling and inner exchanging for communicating with each other.BSC, when for the call distribution channel type of inner exchanging and Speech version, distributes the channel type identical with Speech version with the channel type of call peer and Speech version, sets up local exchange to facilitate.BSC carries local exchange in the handoff completion message of replying to MSC can set up mark.
MSC, after receiving and can setting up the handoff completion message of mark with local exchange, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after local exchange sets up order and sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 5, implementing procedure figure as shown in Figure 6, Figure 7 for signaling process figure.
Embodiment three
According to the embodiment of the present invention, further provide a kind of method, know that the user of inner exchanging and call peer belong to local call by inner switching command for BSC, but directly cannot set up local exchange by the mode of distributing the channel type identical with former calling and Speech version, if BSC exists inner TC resource, at this moment BSC carries out speech conversion by inner TC thus reaches the condition of inner exchanging.This process is the optimization to existing inner exchanging flow process.
Concrete, BSC one of being known in the calling of inner exchanging and this BSC by the method in embodiment one or embodiment two has been existed to call out and has formed local call, but cannot be that the user of inner exchanging distributes the channel type identical with call peer user and Speech version.But BSC exists available TC resource, the channel type of calling both sides and Speech version can be mated by TC conversion.BSC carries local exchange in the handoff completion message of replying to MSC can set up mark.
MSC, after receiving and can setting up the handoff completion message of mark with local exchange, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC is received after local exchange sets up order and sets up local exchange internal user face link (being changed by TC), and returns local exchange to MSC and complete message.TC conversion starts after user face is set up, and user face is terminated after removing.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 5, implementing procedure figure is as shown in Fig. 8, Fig. 7 for signaling process figure.
(2) outside incision
Present invention also offers a kind of processing method of call information, specific as follows, MSC is before transmission incision request (Handover Request) message, whether form local call with the other side of calling after needing successfully to cut BSC to MS to judge, evaluation algorithm belongs to prior art, if can local call be formed after finding this calling incision, in the incision request message issuing BSC, then add identifier for identifying local call and local call mark, it is local call that this local call mark is called out for another of informing under this calling of BSC and this BSC.
Wherein, if use unique serial number to identify as local call, then in call establishment (call setup before referring to switch), MSC needs BSC local call mark being issued calling and called place, so that when switching, BSC finds call peer by the local call mark in incision request message.If use CIC or Call Identify to identify as local call, then, when call setup, can send or not send local call and identify to calling and called BSC, when switching, BSC finds call peer by the local call mark in incision request message.
BSC by the local call mark in incision request message, know this calling and another to call out be local call.BSC is identified at the other side of internal searching calling according to local call, and judge whether to set up local exchange, if existed and the marking matched calling of this local call, can local exchange be set up, then complete in (Handover Complete) message in the incision of issuing MSC and carry local exchange if set up local exchange and can set up information (as carry a local exchange can set up mark).
MSC, receiving after the incision can setting up mark with local exchange completes message, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after local exchange sets up order and sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
Embodiment four
According to the embodiment of the present invention, provide a kind of method, for being all that when providing service by same BSC, in outside cut process, MSC informs that this MS of BSC and its call peer are all the services provided by this BSC as calling one side from calling both sides after the incision of BSC outside.This process is the optimization to existing BSC outside incision flow process.
Concrete, carrying out in calling and called call establishment, MSC utilizes local call to identify and identifies calling, this local call mark is a unique serial number, distributes (having issued the serving BS broadcasts C of calling both sides in the assignment message when call setup) when call setup.
If when to have cut rear both call sides be local call, MSC carries local call mark in the incision request message sending to BSC.
BSC, after receiving incision request message, searches whether there is the calling marking matched with the local call wherein carried for all-calls, if exist, BSC thinks outside two local calls of calling for communicating with each other cut of this calling and BSC.BSC, when the call distribution channel type cut for outside and Speech version, distributes the channel type identical with Speech version with the channel type of call peer and Speech version, sets up local exchange to facilitate.BSC completes in message in the incision of replying to MSC and carries local exchange and can set up mark.
MSC, receiving after the incision can setting up mark with local exchange completes message, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after local exchange sets up order, sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 9, implementing procedure figure as shown in Figure 10, Figure 11 for signaling process figure.
Embodiment five
According to the embodiment of the present invention, reoffer a kind of method, for when calling one side is by same BSC service from the rear calling both sides of BSC outside incision, in outside cut process, MSC informs that this MS of BSC and its call peer are all the services provided by this BSC.This process is the optimization to existing BSC outside incision flow process.
Concrete, carrying out in calling and called call establishment, MSC utilizes local call to identify and identifies calling, this local call mark can be CIC or the Call Identifier of call peer, CIC (Circuit Identity Codec) herein, i.e. original circuit identifier (being carried on the A mouth calling on TDM Transport for mark), Call Identifier herein, i.e. original Call ID (being carried on the A mouth calling on IP Transport for mark).
If when to have cut rear both call sides be local call, MSC carries local call mark in the incision request message sending to BSC.
BSC, after receiving incision request message, searches whether there is the calling marking matched with the local call wherein carried for all-calls, if exist, BSC thinks outside two local calls of calling for communicating with each other cut of this calling and BSC.BSC, when the call distribution channel type cut for outside and Speech version, distributes the channel type identical with Speech version with the channel type of call peer and Speech version, sets up local exchange to facilitate.BSC completes in message in the incision of replying to MSC and carries local exchange and can set up mark.
MSC, receiving after the incision can setting up mark with local exchange completes message, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after local exchange sets up order and sets up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 9, implementing procedure figure as shown in Figure 10, Figure 11 for signaling process figure.
Embodiment six
According to the embodiment of the present invention, further provide a kind of method, for BSC to know that the user of outside incision and call peer belong to local call by incision request message, but directly cannot set up local exchange by the mode of distributing the channel type identical with former calling and Speech version, at this moment BSC reaches the condition of inner exchanging by carrying out inner switching to former calling.This process is the optimization to existing BSC outside incision flow process and channel allocation algorithm.
Concrete, BSC one of being known in the calling of outside incision and this BSC by the method in embodiment four or embodiment five has been existed to call out and has formed local call, but the channel type identical with there is user and Speech version cannot be distributed for the user of outside incision, but other the channel type all supported of the MS that there is calling both sides and Speech version.BSC is the channel type and Speech version that the user of outside incision distributes that both sides support, initiate inner switching to already present user (i.e. the call peer of the user of outside incision) makes it be switched on this channel type and Speech version simultaneously, thus can set up local exchange.BSC completes in message in the incision of replying to MSC and carries local exchange and can set up mark.Subsequent step is identical with five with embodiment four.
As shown in Figure 9, implementing procedure figure is as shown in Figure 12, Figure 11 for signaling process figure.
Embodiment seven
According to the embodiment of the present invention, further provide a kind of method, for BSC to know that the user of outside incision and call peer belong to local call by incision request message, but directly cannot set up local exchange by the mode of distributing the channel type identical with former calling and Speech version, at this moment BSC thinks that local call can be set up and be completed in message in the incision sent to MSC and carries local exchange and can set up mark, after the local exchange receiving MSC sets up order, switched local exchange by inner.This process is the optimization to existing BSC outside incision flow process and channel allocation algorithm.
Concrete, BSC one of being known in the calling of outside incision and this BSC by the method in embodiment four or embodiment five has been existed to call out and has formed local call, but the channel type identical with there is user and Speech version cannot be distributed for the user of outside incision, but other the channel type all supported of the MS that there is calling both sides and Speech version.BSC is the channel type and Speech version that the user of outside incision distributes that this kind of both sides support, BSC completes in message in the incision of replying to MSC and carries local exchange and can set up mark.
MSC, receiving after the incision can setting up mark with local exchange completes message, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
After BSC receives local exchange foundation order, former calling (i.e. the call peer of the user of outside incision) initiation inside is switched and makes it be switched on outside incision user channel type used and Speech version, thus can local exchange be set up.Then BSC is that the user of outside incision and its call peer set up local exchange internal user face link, and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 9, implementing procedure figure is as shown in Figure 13, Figure 14 for signaling process figure.
Embodiment eight
According to the embodiment of the present invention, further provide a kind of method, know that the user of outside incision and call peer belong to local call by incision request message for BSC, but directly cannot set up local exchange by the mode of distributing the channel type identical with former calling and Speech version, if BSC exists inner TC resource, at this moment BSC carries out speech conversion by inner TC thus reaches the condition of inner exchanging.This process is the optimization to existing BSC outside incision flow process.
Concrete, by the method in embodiment four or embodiment five, BSC is known that the calling of outside incision has existed call out with in this BSC and is formed local call, but the user's distribution channel type identical with there is user cannot cut for outside and Speech version.But BSC exists available TC resource, the channel type of calling both sides and Speech version can be mated by TC conversion.BSC completes in message in the incision of replying to MSC and carries local exchange and can set up mark.
MSC, receiving after the incision can setting up mark with local exchange completes message, thinks that BSC can be this to call setup local exchange, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC is received after local exchange sets up order and sets up local exchange internal user face link (being changed by TC), and returns local exchange to MSC and complete message.
MSC receives after local exchange completes message, thinks that this local call completes the preparation of local exchange, can use local exchange, the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity.
As shown in Figure 9, implementing procedure figure is as shown in Figure 15, Figure 11 for signaling process figure.
Present invention also offers call set-up systems in a kind of cut process, comprise base station controller and mobile switching centre, wherein,
Described mobile switching centre, for when mobile terminal switches in communication process, when after judging switching, this mobile terminal and its call peer belong to same base station controller, then send the message of carrying local call mark and inform described base station controller, described local call mark has been assigned to the base station controller at its call peer place of described mobile terminal before the handover; After the local exchange also sent for As-received station control can set up information, choose the right moment and send local exchange foundation order to base station controller;
Described base station controller, when belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, for described mobile terminal and its call peer set up local exchange.Further, when belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, judge whether to set up local exchange, send local exchange when judging to set up local exchange and can set up information to described mobile switching centre, after receiving local exchange foundation order, just set up local exchange for described mobile terminal and its call peer.
Described base station controller identifies according to described local call, searches and whether there is the calling marking matched with described local call, if exist, then can set up local exchange;
Described local call is designated a unique serial number, or described local call is designated call identification Call ID or the circuit identifier CIC of call peer.
It should be noted that, if do not conflicted, each feature in various embodiments of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Claims (8)
1. call-establishing method in a cut process, it is characterized in that, when mobile terminal switches in communication process, if this mobile terminal and its call peer belong to same base station controller after mobile switching centre judges switching, then send the message of carrying local call mark and inform described base station controller, described base station controller is that described mobile terminal and its call peer set up local exchange, and described local call mark has been assigned to the base station controller at its call peer place of this mobile terminal before the handover;
Described base station controller is when receiving mobile switching centre and informing that mobile terminal and its call peer belong to same base station controller, also judge whether to set up local exchange, when judging to set up local exchange, sending local exchange and can set up information to mobile switching centre; Mobile switching centre is receiving after local exchange can set up information, the transmission local exchange that chooses the right moment sets up order to base station controller, and base station controller is just that described mobile terminal and its call peer set up local exchange internal user face link receiving after local exchange sets up order.
2. the method for claim 1, is characterized in that, described in switch to base station controller inside switch, described method specifically comprises:
When mobile switching centre receives inner handover request message, when judging that described mobile terminal and its call peer belong to same base station controller, send inner switching command to base station controller, in described inner switching command, carry local call mark;
Described base station controller, according to the local call mark in described inner switching command, when judgement can set up local exchange, carries local exchange and can set up mark in the handoff completion message sending to mobile switching centre;
After described mobile switching centre receives and can set up the handoff completion message of mark with local exchange, send local exchange to base station controller and set up order;
Described base station controller receives after local exchange sets up order and sets up local exchange internal user face link.
3. the method for claim 1, is characterized in that, described in switch to base station controller outside incision, described method specifically comprises:
Mobile switching centre, before transmission incision request message, judges whether described mobile terminal and its call peer belong to same base station controller, if belonged to, carries local call mark in described incision request message;
When described base station controller can set up local exchange according to the local call mark judgement in described incision request message, complete in message sending to the incision of mobile switching centre and carry local exchange and can set up mark;
Described mobile switching centre receives after the incision can setting up mark with local exchange completes message, sends local exchange set up order to base station controller;
Described base station controller receives after local exchange sets up order and sets up local exchange internal user face link.
4. as claim 1,2, or the method described in 3, it is characterized in that, after local exchange internal user face link set up by described base station controller, also send local exchange and complete message to mobile switching centre, described mobile switching centre receives after described local exchange completes message, removes described mobile terminal and the user face path of its call peer from base station controller to described mobile switching centre.
5. the method as described in claim 1,2 or 3, is characterized in that,
Described base station controller can set up local exchange according to judging whether as under type: base station controller according to as described in local call identify, search and whether there is the calling marking matched with described local call, if exist, then can set up local exchange;
Wherein, described local call is designated unique serial number, or described local call is designated call identification Call ID or the circuit identifier CIC of call peer.
6. the method as described in claim 1,2 or 3, it is characterized in that, described base station controller is that described mobile terminal distributes the channel type identical with described call peer and Speech version, or the channel type of described mobile terminal and its call peer and Speech version are mated by TC conversion by described base station controller.
7. method as claimed in claim 3, it is characterized in that, described base station controller is the channel type and Speech version that described mobile terminal distributes that this mobile terminal and its call peer all support, and initiates inner switching to this call peer and make it be switched on this channel type and Speech version.
8. a call set-up systems in cut process, is characterized in that, described system comprises base station controller and mobile switching centre, wherein,
Described mobile switching centre, when switching in communication process for mobile terminal, when after judging switching, this mobile terminal and its call peer belong to same base station controller, then send the message of carrying local call mark and inform described base station controller, described local call mark has been assigned to the base station controller at its call peer place of described mobile terminal before the handover;
Described base station controller, when belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, for described mobile terminal and its call peer set up local exchange;
Described base station controller, when also belonging to same base station controller for mobile terminal after receiving mobile switching centre and informing described switching and its call peer, judge whether to set up local exchange, send local exchange when judging to set up local exchange and can set up information to described mobile switching centre, after receiving local exchange foundation order, just set up local exchange for described mobile terminal and its call peer;
Described mobile switching centre, after the local exchange also sent for As-received station control can set up information, chooses the right moment and sends local exchange foundation order to base station controller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127807.0A CN101860926B (en) | 2009-04-09 | 2009-04-09 | Method and system for establishing call in switch-in process |
| PCT/CN2010/071660 WO2010115379A1 (en) | 2009-04-09 | 2010-04-09 | Method and system for call establishment in process of handover access |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127807.0A CN101860926B (en) | 2009-04-09 | 2009-04-09 | Method and system for establishing call in switch-in process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101860926A CN101860926A (en) | 2010-10-13 |
| CN101860926B true CN101860926B (en) | 2015-04-01 |
Family
ID=42935652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910127807.0A Expired - Fee Related CN101860926B (en) | 2009-04-09 | 2009-04-09 | Method and system for establishing call in switch-in process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101860926B (en) |
| WO (1) | WO2010115379A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238661B (en) | 2010-04-30 | 2015-06-03 | 中兴通讯股份有限公司 | Switching system and method during local switch |
| CN102281187A (en) * | 2010-06-11 | 2011-12-14 | 中兴通讯股份有限公司 | System and method for realizing local exchange transmission and base station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143442A (en) * | 1994-03-09 | 1997-02-19 | 诺基亚电信公司 | Mobile communication system and call control method |
| CN101159905A (en) * | 2007-11-07 | 2008-04-09 | 华为技术有限公司 | Local exchange method, core network equipment and network system of implementing in base station controller |
| CN101361390A (en) * | 2005-12-15 | 2009-02-04 | 斯利府·米什创造有限公司 | A communications system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237396B (en) * | 2007-01-30 | 2013-01-23 | 中兴通讯股份有限公司 | IP load establishing method in mobile communication system |
-
2009
- 2009-04-09 CN CN200910127807.0A patent/CN101860926B/en not_active Expired - Fee Related
-
2010
- 2010-04-09 WO PCT/CN2010/071660 patent/WO2010115379A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143442A (en) * | 1994-03-09 | 1997-02-19 | 诺基亚电信公司 | Mobile communication system and call control method |
| CN101361390A (en) * | 2005-12-15 | 2009-02-04 | 斯利府·米什创造有限公司 | A communications system and method |
| CN101159905A (en) * | 2007-11-07 | 2008-04-09 | 华为技术有限公司 | Local exchange method, core network equipment and network system of implementing in base station controller |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010115379A1 (en) | 2010-10-14 |
| CN101860926A (en) | 2010-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8014773B2 (en) | Mixed mobile communication system of asynchronous communication network and synchronous communication network having handover function of mobile communication terminal, and handover method in the same | |
| JP4701289B2 (en) | Handover method from asynchronous mobile communication network to synchronous mobile communication network | |
| CN103945470A (en) | Switching method, source communication node and target communication node | |
| JPH11103487A (en) | Radio remote communication system to improve performance and compatibility | |
| KR101012004B1 (en) | Apparatus and method for saving resource between core network and base station controller in a mobile communication system | |
| CN102497396B (en) | Communication method, base station, base station controller and mobile switching center | |
| CN101860926B (en) | Method and system for establishing call in switch-in process | |
| WO2002001903A1 (en) | Call set-up in a mobile telecommunications system | |
| WO2011017895A1 (en) | Method and system for performing a local switching of a local call | |
| WO2011113207A1 (en) | Method and device for service switch | |
| EP2501198B1 (en) | Local exchange implementation method for local call | |
| CN102045794B (en) | Call switching method between base station systems and mobile communication system | |
| CN102487499B (en) | Method for re-directing tunnel and interworking function entity | |
| CN101801046B (en) | Method for establishing local exchange, core network equipment and base station subsystem | |
| WO2005086385A1 (en) | Method for handover of mobile communication terminal in mixed mobile communication network of asynchronous and synchronous communication network | |
| CN101835220B (en) | Call handover method between base station systems and mobile communication system | |
| CN100561894C (en) | The method of handing-over mobile communication terminal in the mixed mobile communication network of asynchronous and synchronous communication network | |
| KR101005176B1 (en) | Method for Hand-over in the Mixed Network of Asynchronous Communication Network and Synchronous Communication Network | |
| CN1973455B (en) | Inter-system handover | |
| JP2001268635A (en) | Initialization of dynamic logical coverage area of radio base station | |
| KR100589953B1 (en) | Hand Over Method from Asynchronous Mobile Communication Network to Synchronous Mobile Communication Network | |
| CN102075906B (en) | Processing method of circuit switched (CS) service and network control equipment | |
| CN101801053B (en) | Method for removing local exchange, core network equipment and base station subsystem | |
| CN101835219A (en) | Call handover method in base station system and mobile communication system | |
| WO2010091634A1 (en) | Method, apparatus and system for establishing local switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20160409 |