CN101860926A - Method and system for establishing call in switch-in process - Google Patents
Method and system for establishing call in switch-in process Download PDFInfo
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- CN101860926A CN101860926A CN200910127807A CN200910127807A CN101860926A CN 101860926 A CN101860926 A CN 101860926A CN 200910127807 A CN200910127807 A CN 200910127807A CN 200910127807 A CN200910127807 A CN 200910127807A CN 101860926 A CN101860926 A CN 101860926A
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- 230000000977 initiatory effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 description 9
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- 238000005457 optimization Methods 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 6
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- 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
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- 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, abbreviate GSM as) in, (the Mobile Switching Center of mobile switching centre, abbreviate MSC as) and base station controller (Base Station Controller, abbreviate BSC as) between adopt the A interface to communicate that (the A mouth can be carried on TDM (Time Division Multiplexing, time division multiplexing), also can be carried on IP, for the A mouthpiece be stated from IP situation we be referred to as IPA), and portable terminal (MobileStation, abbreviate MS as) with base station (Base Station abbreviates BS as) between communicate by the air interface Um Interface; In addition, be connected by Abis interface between BS and the BSC.
MS may switch in communication process, comprises inner switching of BSC and the outside incision of BSC.Wherein, MS may be between the BTS under the BSC in communication process, minizone, interchannel switch, and we are referred to as, and BSC is inner to be switched, and is called for short inner the switching.MS also may move to the coverage of another BSC from the coverage of a BSC and switch in communication process, we are referred to as the outside incision of BSC.
The inside switching flow of GSM, the flow process when IPA as shown in Figure 1.The outside incision of the BSC of GSM flow process as shown in Figure 2, is used for the user and is cut into another BSC from a BSC.No matter in GSM, in the link setup process, carry out in the process of assignment at the A mouth at present, can give user ID of each call distribution, be that TDM calls out or IP calls out.
At present in the switching flow of the inside of GSM, all will set up user's face path of from BSC to MGW (MediaGateway, media gateway), couple together to user's face path of call peer user's face by MGW again calling both sides.In the outside incision of the BSC of GSM flow process, all will set up the user's face path from BSC to MGW, couple together to user's face path of call peer place BSC user's face by MGW again calling both sides.
In inner handoff procedure, calling both sides all is in following time of same BSC, and when the MS of outside incision after incision and call peer be in same BSC following time, BSC will occur and send user's face to MGW earlier, MGW sends back user's face the situation of former BSC again, as shown in Figure 3, cause the waste of transfer resource.
Summary of the invention
The technical problem to be solved in the present invention provides call-establishing method and system in a kind of cut process, reduces the waste of transfer resource.
In order to address the above problem, the invention provides call-establishing method in a kind of cut process, when portable terminal switches in communication process, if this portable terminal belonged to same base station controller with its call peer after switching was judged by mobile switching centre, then send the message of carrying the local call sign and inform described base station controller, described base station controller is that described portable terminal and its call peer are set up local exchange, and described local call is identified at before the switching base station controller that its call peer place of this portable terminal is given in assignment.
Further, said method also can have following characteristics, described base station controller is when receiving that mobile switching centre informs that portable terminal and its call peer belong to same base station controller, also judge whether to set up local exchange, when judging that can set up this locality exchanges, send local exchange and can set up information to mobile switching centre; Mobile switching centre is after receiving that local exchange can be set up information, the local exchange of the transmission that chooses the right moment is set up and is ordered to base station controller, and base station controller is receiving after order is set up in this locality exchange just be that described portable terminal is set up local exchange internal user face link with its call peer.
Further, said method also can have following characteristics, and switch the described base station controller inside that switches to, and described method specifically comprises:
When inner handoff request message is received by mobile switching centre, judge when described portable terminal and its call peer belong to same base station controller, send inner switching command, carry the local call sign in the described inner switching command to base station controller;
Described base station controller is judged in the time of setting up local the exchange according to the sign of the local call in the described inner switching command, is carried local exchange and can set up sign in sending to the handoff completion message of mobile switching centre;
After described mobile switching centre receives that having local exchange can set up the handoff completion message of sign, send local exchange to base station controller and set up order;
Described base station controller is received after order is set up in local exchange and is set up local exchange internal user face link.
Further, said method also can have following characteristics, and the described base station controller outside that switches to is cut, and described method specifically comprises:
Mobile switching centre judges whether described portable terminal and its call peer belong to same base station controller before sending the incision request message, if belong to, carry the local call sign in the described incision request message;
When described base station controller judges that according to the local call in described incision request message sign can set up this locality exchanges, finish in the incision that sends to mobile switching centre and to carry local exchange in the message and can set up sign;
Described mobile switching centre receives that having local exchange can set up after the incision of sign finishes message, sends local exchange to base station controller and sets up order;
Described base station controller is received after order is set up in local exchange and is set up local exchange internal user face link.
Further, said method also can have following characteristics, after described base station controller is set up local exchange internal user face link, also send local exchange and finish message to mobile switching centre, described portable terminal and the user face path of its call peer from base station controller to described mobile switching centre are removed after receiving that message is finished in described local exchange by described mobile switching centre.
Further, said method also can have following characteristics, described base station controller judges whether to set up local exchange according to following mode: base station controller identifies according to described local call, search and whether have 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, and perhaps, described local call is designated the 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 portable terminal distributes channel type and the Speech version identical with described call peer, perhaps, described base station controller mates by the channel type and the Speech version of TC conversion with described portable terminal and its call peer.
Further, said method also can have following characteristics, described base station controller is channel type and the Speech version that described portable terminal distributes this portable terminal and its call peer all to support, and to inner switching of this call peer initiation it is switched on this channel type and the 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, be used for portable terminal when communication process switches, when this portable terminal and its call peer belong to same base station controller after judge switching, then send the message carry the local call sign and inform described base station controller, described local call is identified at before the switching base station controller that its call peer place of described portable terminal is given in assignment;
Described base station controller is used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, is described portable terminal and the local exchange of its call peer foundation.
Further, said system also can have following characteristics, described base station controller, also be used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, judge whether to set up local exchange, when judgement can be set up local exchange, send local exchange and can set up information, after receiving this locality exchange foundation order, just set up this locality exchange for described portable terminal and its call peer to described mobile switching centre;
Described mobile switching centre, after this locality that also is used for the transmission of As-received station control exchanged and can set up information, the local exchange foundation of the transmission that chooses the right moment was ordered to base station controller.
The present invention sets up local exchange for the calling both sides that belongs to same BSC after switching in handoff procedure, directly do not transmit the user plane information of calling both sides by core net, thereby reduced the waste of transfer resource.
Description of drawings
Fig. 1 is an inner switching flow of the prior art.
Fig. 2 is the outside incision of a BSC of the prior art flow process.
Fig. 3 is inner switches or during outside incision in the prior art, the schematic diagram of Access Network and core net transmission user face.
Fig. 4 is at the schematic diagram that has carried out later Access Network of local function of exchange and core net transmission user face.
Fig. 5 is in inner handoff procedure, the signaling process figure that inner switching command and handoff completion message are optimized.
Fig. 6 is in inner handoff procedure, and MSC informs the local call that BSC communicates with each other by local call sign, and BSC judges can set up local exchange and return to switch to MSC and carries the flow chart that local exchange can be set up sign in finishing.
Fig. 7 is in inner handoff procedure, and MSC initiates local call to BSC and sets up order after can setting up sign and know that local call can be set up by this locality exchange, and BSC sets up the flow chart of local exchange.
Fig. 8 is in inner handoff procedure, and MSC informs the local call that BSC communicates with each other by local call sign, and BSC judges can use TC to set up local exchange and return to switch to MSC and carries the flow chart that local exchange can be set up sign in finishing.
Fig. 9 is in the outside cut process of BSC, to cutting the signaling process figure that request message is optimized.
Figure 10 is that MSC informs the local call that BSC communicates with each other by the local call sign in the outside cut process of BSC, and the BSC judgement can be set up local exchange and be returned the incision request-reply to MSC and wherein carry the flow chart that local exchange can be set up sign.
Figure 11 is in the outside cut process of BSC, and MSC initiates local call to BSC and sets up order after can setting up sign and know that local call can be set up by this locality exchange, and BSC sets up the flow chart of local exchange.
Figure 12 is in the outside cut process of BSC, MSC informs the local call that BSC communicates with each other by the local call sign, after BSC initiated inner the switching to call peer, judgement can be set up local exchange and be returned the incision request-reply to MSC and wherein carry the flow chart that local exchange can be set up sign.
Figure 13 is in the outside cut process of BSC, MSC informs the local call that BSC communicates with each other by local call sign, initiates inner switching judging and can set up local exchange and return the incision request-reply to MSC and wherein carry the flow chart that local exchange can be set up sign but BSC judges call peer.
Figure 14 is in the outside cut process of BSC, and MSC initiates local call to BSC and sets up order after can setting up sign and know that local call can be set up by this locality exchange, and BSC sets up the flow chart of local call by call peer being initiated inner the switching.
Figure 15 is that MSC informs the local call that BSC communicates with each other by the local call sign in the outside cut process of BSC, and the BSC judgement can be used TC to set up local exchange and return the incision request-reply to MSC and wherein carry the flow chart that local exchange can be set up sign.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Central idea of the present invention is, to in communication process, switching the portable terminal of (comprising inner the switching and outside incision), be in same BSC if switch back portable terminal and its call peer, then be that this portable terminal and its call peer are set up local exchange, realize the function of the local exchange of local call, as shown in Figure 4, for the calling under the same BSC, directly do not transmit the user plane information of calling both sides, thereby reduced the waste of transfer resource by core net.
Among the present invention, MSC is except finishing existing protocol standard function, when call setup, need identify calling both sides, to represent that this is a pair of calling, we are referred to as the local call sign, the local call sign can be represented with a unique serial number, also can indicate that the former just can distribute unitedly when call setup with the Call Identifier (call identification) or the CIC (circuit identifier) of call peer; The latter's Call Identifier, it is original Call ID (being used to indicate the A mouth calling that is carried on the IP Transport), the latter's CIC (Circuit Identity Codec), promptly original circuit identifier (being used to indicate the A mouth calling that is carried on the TDM Transport).MSC is when receiving inner handoff 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 in inner switching command (Internal Handover Command) message or incision request message, add the identifier be used to identify local call, this identifier be used to inform BSC should call out and this BSC under another calling be local call.
Describe inner the switching and outside incision below in two kinds of situation.
(1) the inner switching
The invention provides a kind of processing method of call information, specific as follows,
MSC is when receiving inner handoff request (Internal Handover Required) message, need whether under same BSC, judge this MS with the other side who calls out, evaluation algorithm belongs to prior art, if can constitute local call after finding, then adding the identifier be used to identify local call in issuing the inside switching command of BSC (InternalHandover Command) is the local call sign, this local call sign be used to inform BSC should call out and this BSC under another calling be local call.
Wherein, if use unique serial number to identify as local call, then in call establishment (call setup before referring to switch), need issue the BSC at calling and called place to the local call sign, so that when switching, BSC finds call peer by the sign of the local call in the inner switching command.If use Call Identify to identify as local call, then when call setup, portability or do not carry the local call sign, when switching, BSC finds call peer by the sign of the local call in the inner switching command.Local call is identified at before the switching base station controller that the call peer place of portable terminal is given in assignment.
BSC knows that by the sign of the local call in the inner switching command this calling and another calling are local calls.BSC is identified at the other side that internal searching is called out according to local call, and judge whether to set up local exchange, if exist and the marking matched calling of this local call then can set up local exchange, if can set up local exchange and then finish and carry local exchange in (Handover Complete) message and can set up information (as carry a local exchange and can set up sign) in the switching of issuing MSC.
MSC thinks that BSC can be this to the local exchange of call setup after receiving that having local exchange can set up the handoff completion message of sign, MSC can select a good opportunity and set up order to the local exchange of BSC transmission.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link, and returns local the exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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 invention, a kind of method is provided, being used for switching the back calling both sides when inside all is that MSC informs that this MS of BSC and its call peer all are to provide service by this BSC in inner handoff procedure when providing service by same BSC.This process is the optimization to existing inner exchanging flow process.
As Fig. 6, shown in 7, comprising:
Wherein, in carrying out caller and called call establishment, whether MSC is that local call is judged to calling out, if find it is local call, MSC utilizes local call to identify, this local call sign is a unique serial number, distributes when call setup (having issued the serving BS broadcasts C of calling both sides in the assignment message when call setup).
Step 704 after BSC receives that order is set up in local exchange, is set up local exchange internal user face link, and is returned local exchange to MSC and finish message.
Step 705 after MSC receives that message is finished in local exchange, thinks that this local call finished the preparation of local exchange, can use local exchange, and the user face path of dismantling call both sides from BSC to MSC of selecting a good opportunity finishes.
Step 706 is carried out existing procedure, finishes.
Embodiment two
According to the embodiment of the invention, a kind of method is provided again, being used for when calling out the inner back calling both sides of switching of a side all is when serving by same BSC, MSC informs that this MS of BSC and its call peer all are the services that is provided by this BSC in the inner exchanging process.This process is the optimization to existing inner exchanging flow process.
Concrete, in carrying out the calling and called call establishment, whether MSC is that local call is judged to calling out, if find it is local call, then utilize local call to identify, this local call sign is the Call Identifier of call peer, Call Identifier herein, promptly original CallID (being used to indicate the A mouth calling that is carried on the IP Transport).
If when both call sides was local call after inner switching was finished, MSC carried the local call sign in sending to the inside switching command of BSC.
After BSC receives inner switching command, search the marking matched calling of local call that whether exists and wherein carry at all-calls, BSC thinks that the calling of this calling and inner exchanging is two local calls that communicate with each other if exist then.BSC distributes channel type and the Speech version identical with Speech version with the channel type of call peer when being the call distribution channel type of inner exchanging and Speech version, set up local exchange with convenient.BSC carries local exchange in the handoff completion message of replying to MSC can set up sign.
MSC thinks that BSC can be this to the local exchange of call setup after receiving that having local exchange can set up the handoff completion message of sign, MSC can select a good opportunity and set up order to the local exchange of BSC transmission.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link, and returns local the exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 5, implementing procedure figure such as Fig. 6, shown in Figure 7.
Embodiment three
According to the embodiment of the invention, a kind of method is provided again, be used for BSC and know that by inner switching command the user of inner exchanging and call peer belong to local call, but can't directly set up local exchange by the mode of distributing channel type identical and Speech version with former calling, if there is inner TC resource in BSC, thereby at this moment BSC carries out the condition that speech conversion reaches inner exchanging by inner TC.This process is the optimization to existing inner exchanging flow process.
Concrete, BSC knows by the method among embodiment one or the embodiment two that in the calling of inner exchanging and this BSC one has existed to call out and constitutes local call, but can't be that the user of inner exchanging distributes channel type and the Speech version identical with the call peer user.But there is available TC resource in BSC, the channel type and the Speech version of calling both sides can be mated by the TC conversion.BSC carries local exchange in the handoff completion message of replying to MSC can set up sign.
MSC thinks that BSC can be this to the local exchange of call setup after receiving that having local exchange can set up the handoff completion message of sign, MSC can select a good opportunity and set up order to the local exchange of BSC transmission.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link (by the TC conversion), and returns this locality exchange to MSC and finish message.The TC conversion begins after user's face is set up, and user's face is removed the back and finished.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 5, implementing procedure figure such as Fig. 8, shown in Figure 7.
(2) outside incision
The present invention also provides a kind of processing method of call information, specific as follows, MSC is before sending incision request (Handover Request) message, need successfully cut MS and whether constitute local call behind the BSC and judge with the other side who calls out, evaluation algorithm belongs to prior art, can constitute local call if find after this calling incision, then adding the identifier be used to identify local call in issuing the incision request message of BSC is the local call sign, this local call sign be used to inform BSC should call out and this BSC under another calling be local call.
Wherein, if use unique serial number to identify as local call, then in call establishment (call setup before referring to switch), MSC need issue the BSC at calling and called place to the local call sign, so that when switching, BSC finds call peer by the local call sign in the 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 sign in the incision request message.
BSC knows that by the local call sign in the incision request message this calling and another calling are local calls.BSC is identified at the other side that internal searching is called out according to local call, and judge whether to set up local exchange, if exist and the marking matched calling of this local call then can set up local exchange, if can set up local exchange and then finish and carry local exchange in (Handover Complete) message and can set up information (as carry a local exchange and can set up sign) in the incision of issuing MSC.
MSC thinks that receiving that having local exchange can set up after the incision of sign finishes message BSC can be this to the local exchange of call setup, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link, and returns local the exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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 invention, a kind of method is provided, being used for when calling out a side all is that externally MSC informs that this MS of BSC and its call peer all are the services that is provided by this BSC in the cut process when providing service by same BSC from the outside incision of BSC back calling both sides.This process is the optimization to the outside incision of existing BSC flow process.
Concrete, in carrying out the calling and called call establishment, MSC utilizes the local call sign that calling is identified, and this local call sign is a unique serial number, distributes when call setup (having issued the serving BS broadcasts C of calling both sides in the assignment message when call setup).
When both call sides was local call after if incision was finished, MSC carries the local call sign in sending to the incision request message of BSC.
BSC searches the marking matched calling of local call that whether exists and wherein carry at all-calls after receiving the incision request message, BSC thinks that the calling of this calling and the outside incision of BSC is two local calls that communicate with each other if exist then.BSC distributes channel type and the Speech version identical with Speech version with the channel type of call peer when being outside call distribution channel type of cutting and Speech version, with the local exchange of convenient foundation.BSC finishes in the incision of replying to MSC and carries local exchange in the message and can set up sign.
MSC thinks that receiving that having local exchange can set up after the incision of sign finishes message BSC can be this to the local exchange of call setup, and MSC can select a good opportunity and send local exchange to BSC and set up order.
After BSC receives that order is set up in local exchange, set up local exchange internal user face link, and return local exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 9, implementing procedure figure such as Figure 10, shown in Figure 11.
Embodiment five
According to the embodiment of the invention, a kind of method is provided again, being used for when calling out a side all is when serving by same BSC from the outside incision of BSC back calling both sides, and externally MSC informs that this MS of BSC and its call peer all are the services that is provided by this BSC in the cut process.This process is the optimization to the outside incision of existing BSC flow process.
Concrete, in carrying out the calling and called call establishment, MSC utilizes the local call sign that calling is identified, this local call sign can be the CIC or the Call Identifier of call peer, CIC herein (Circuit Identity Codec), be original circuit identifier (being used to indicate the A mouth calling that is carried on the TDM Transport), Call Identifier herein, promptly original Call ID (being used to indicate the A mouth calling that is carried on the IP Transport).
When both call sides was local call after if incision was finished, MSC carries the local call sign in sending to the incision request message of BSC.
BSC searches the marking matched calling of local call that whether exists and wherein carry at all-calls after receiving the incision request message, BSC thinks that the calling of this calling and the outside incision of BSC is two local calls that communicate with each other if exist then.BSC distributes channel type and the Speech version identical with Speech version with the channel type of call peer when being outside call distribution channel type of cutting and Speech version, with the local exchange of convenient foundation.BSC finishes in the incision of replying to MSC and carries local exchange in the message and can set up sign.
MSC thinks that receiving that having local exchange can set up after the incision of sign finishes message BSC can be this to the local exchange of call setup, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link, and returns local the exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 9, implementing procedure figure such as Figure 10, shown in Figure 11.
Embodiment six
According to the embodiment of the invention, a kind of method is provided again, be used for BSC to know that by the incision request message user and the call peer of outside incision belong to local call, but can't directly set up local exchange by the mode of distributing channel type identical with former calling and Speech version, at this moment BSC is by carrying out the inner condition that reaches inner exchanging of switching to former calling.This process is the optimization to existing BSC outside incision flow process and channel allocation algorithm.
Concrete, BSC knows that by the method among embodiment four or the embodiment five one in the outside calling of cutting and this BSC has existed calling to constitute local call, but the user that can't be the outside incision distributes channel type and the Speech version identical with there being the user, but other channel type and the Speech version that has that the MS of calling both sides supports.Channel type and Speech version that BSC distributes both sides to support for the outside user who cuts, simultaneously already present user (i.e. the user's of outside incision call peer) is initiated inner the switching it is switched on this channel type and the Speech version, thereby can set up local exchange.BSC finishes in the incision of replying to MSC and carries local exchange in the message and can set up sign.Subsequent step is identical with five with embodiment four.
Signaling process figure as shown in Figure 9, implementing procedure figure such as Figure 12, shown in Figure 11.
Embodiment seven
According to the embodiment of the invention, a kind of method is provided again, be used for BSC to know that by the incision request message user and the call peer of outside incision belong to local call, but can't directly set up local exchange by the mode of distributing channel type identical and Speech version with former calling, at this moment BSC thinks that local call can be set up and finishes in the incision that sends to MSC and carries local exchange in the message and can set up sign, sets up the order back in this locality exchange of receiving MSC and switches by inside and finish local exchange.This process is the optimization to existing BSC outside incision flow process and channel allocation algorithm.
Concrete, BSC knows that by the method among embodiment four or the embodiment five one in the outside calling of cutting and this BSC has existed calling to constitute local call, but the user that can't be the outside incision distributes channel type and the Speech version identical with there being the user, but other channel type and the Speech version that has that the MS of calling both sides supports.Channel type and Speech version that BSC distributes this kind both sides to support for the user of outside incision, BSC are finished in the incision of replying to MSC and are carried local exchange in the message and can set up sign.
MSC thinks that receiving that having local exchange can set up after the incision of sign finishes message BSC can be this to the local exchange of call setup, and MSC can select a good opportunity and send local exchange to BSC and set up order.
After BSC receives that order is set up in local exchange, the inner switching initiated in former calling (i.e. the user's of outside incision call peer) it is switched on outside incision the user used channel type and Speech version, thereby can set up local exchange.BSC is the user and the local exchange of its call peer foundation internal user face link of outside incision then, and returns local exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 9, implementing procedure figure such as Figure 13, shown in Figure 14.
Embodiment eight
According to the embodiment of the invention, a kind of method is provided again, be used for BSC and know that by the incision request message user and the call peer of outside incision belong to local call, but can't directly set up local exchange by the mode of distributing channel type identical and Speech version with former calling, if there is inner TC resource in BSC, thereby at this moment BSC carries out the condition that speech conversion reaches inner exchanging by inner TC.This process is the optimization to the outside incision of existing BSC flow process.
Concrete, BSC knows that by the method among embodiment four or the embodiment five one in the outside calling of cutting and this BSC has existed calling to constitute local call, but can't distribute channel type and the Speech version identical with there being the user for the user of outside incision.But there is available TC resource in BSC, the channel type and the Speech version of calling both sides can be mated by the TC conversion.BSC finishes in the incision of replying to MSC and carries local exchange in the message and can set up sign.
MSC thinks that receiving that having local exchange can set up after the incision of sign finishes message BSC can be this to the local exchange of call setup, and MSC can select a good opportunity and send local exchange to BSC and set up order.
BSC receives after order is set up in local exchange and sets up local exchange internal user face link (by the TC conversion), and returns this locality exchange to MSC and finish message.
After MSC receives that message is finished in local exchange, think that this local call finished 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.
Signaling process figure as shown in Figure 9, implementing procedure figure such as Figure 15, shown in Figure 11.
The present invention also provides call set-up systems in a kind of cut process, comprises base station controller and mobile switching centre, wherein,
Described mobile switching centre, be used at portable terminal when communication process switches, when this portable terminal and its call peer belong to same base station controller after judge switching, then send the message carry the local call sign and inform described base station controller, described local call is identified at before the switching base station controller that its call peer place of described portable terminal is given in assignment; After this locality that also is used for the transmission of As-received station control exchanged and can set up information, the local exchange foundation of the transmission that chooses the right moment was ordered to base station controller;
Described base station controller is used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, is described portable terminal and the local exchange of its call peer foundation.Further, be used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, judge whether to set up local exchange, when judgement can be set up local exchange, send local exchange and can set up information, after receiving this locality exchange foundation order, just set up this locality exchange for described portable terminal and its call peer to described mobile switching centre.
Described base station controller identifies according to described local call, searches whether to have 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, and perhaps, described local call is designated the call identification Call ID or the circuit identifier CIC of call peer.
Need to prove that if do not conflict, each feature among various embodiments of the present invention and the embodiment can mutually combine, all within protection scope of the present invention.In addition, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Claims (10)
1. call-establishing method in the cut process, it is characterized in that, when portable terminal switches in communication process, if this portable terminal belonged to same base station controller with its call peer after switching was judged by mobile switching centre, then send the message of carrying the local call sign and inform described base station controller, described base station controller is that described portable terminal and its call peer are set up local exchange, and described local call is identified at before the switching base station controller that its call peer place of this portable terminal is given in assignment.
2. the method for claim 1, it is characterized in that, described base station controller is when receiving that mobile switching centre informs that portable terminal and its call peer belong to same base station controller, also judge whether to set up local exchange, when judging that can set up this locality exchanges, send local exchange and can set up information to mobile switching centre; Mobile switching centre is after receiving that local exchange can be set up information, the local exchange of the transmission that chooses the right moment is set up and is ordered to base station controller, and base station controller is receiving after order is set up in this locality exchange just be that described portable terminal is set up local exchange internal user face link with its call peer.
3. the method for claim 1 is characterized in that, switch the described base station controller inside that switches to, and described method specifically comprises:
When inner handoff request message is received by mobile switching centre, judge when described portable terminal and its call peer belong to same base station controller, send inner switching command, carry the local call sign in the described inner switching command to base station controller;
Described base station controller is judged in the time of setting up local the exchange according to the sign of the local call in the described inner switching command, is carried local exchange and can set up sign in sending to the handoff completion message of mobile switching centre;
After described mobile switching centre receives that having local exchange can set up the handoff completion message of sign, send local exchange to base station controller and set up order;
Described base station controller is received after order is set up in local exchange and is set up local exchange internal user face link.
4. the method for claim 1 is characterized in that, the described base station controller outside that switches to is cut, and described method specifically comprises:
Mobile switching centre judges whether described portable terminal and its call peer belong to same base station controller before sending the incision request message, if belong to, carry the local call sign in the described incision request message;
When described base station controller judges that according to the local call in described incision request message sign can set up this locality exchanges, finish in the incision that sends to mobile switching centre and to carry local exchange in the message and can set up sign;
Described mobile switching centre receives that having local exchange can set up after the incision of sign finishes message, sends local exchange to base station controller and sets up order;
Described base station controller is received after order is set up in local exchange and is set up local exchange internal user face link.
5. as claim 2,3 or 4 described methods, it is characterized in that, after described base station controller is set up local exchange internal user face link, also send local exchange and finish message to mobile switching centre, described portable terminal and the user face path of its call peer from base station controller to described mobile switching centre are removed after receiving that message is finished in described local exchange by described mobile switching centre.
6. as claim 2,3 or 4 described methods, it is characterized in that,
Described base station controller judges whether to set up local exchange according to following mode: base station controller identifies according to described local call, searches whether to have 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, and perhaps, described local call is designated the call identification Call ID or the circuit identifier CIC of call peer.
7. as claim 2,3 or 4 described methods, it is characterized in that, described base station controller is that described portable terminal distributes channel type and the Speech version identical with described call peer, perhaps, described base station controller mates by the channel type and the Speech version of TC conversion with described portable terminal and its call peer.
8. method as claimed in claim 4, it is characterized in that, described base station controller is channel type and the Speech version that described portable terminal distributes this portable terminal and its call peer all to support, and to inner switching of this call peer initiation it is switched on this channel type and the Speech version.
9. call set-up systems in the cut process is characterized in that described system comprises base station controller and mobile switching centre, wherein,
Described mobile switching centre, be used for portable terminal when communication process switches, when this portable terminal and its call peer belong to same base station controller after judge switching, then send the message carry the local call sign and inform described base station controller, described local call is identified at before the switching base station controller that its call peer place of described portable terminal is given in assignment;
Described base station controller is used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, is described portable terminal and the local exchange of its call peer foundation.
10. system as claimed in claim 9 is characterized in that,
Described base station controller, also be used for when receiving that mobile switching centre informs that described switching back portable terminal and its call peer belong to same base station controller, judge whether to set up local exchange, when judgement can be set up local exchange, send local exchange and can set up information, after receiving this locality exchange foundation order, just set up this locality exchange for described portable terminal and its call peer to described mobile switching centre;
Described mobile switching centre, after this locality that also is used for the transmission of As-received station control exchanged and can set up information, the local exchange foundation of the transmission that chooses the right moment was ordered 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 |
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| Publication Number | Publication Date |
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| CN101860926A true CN101860926A (en) | 2010-10-13 |
| CN101860926B CN101860926B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910127807.0A Expired - Fee Related CN101860926B (en) | 2009-04-09 | 2009-04-09 | Method and system for establishing call in switch-in process |
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| WO (1) | WO2010115379A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011134354A1 (en) * | 2010-04-30 | 2011-11-03 | 中兴通讯股份有限公司 | System, method and base station subsystem for realizing handover in local switch |
| WO2011153870A1 (en) * | 2010-06-11 | 2011-12-15 | 中兴通讯股份有限公司 | System, method and base station for implementing local switching transmission |
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| 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 |
| CN101237396A (en) * | 2007-01-30 | 2008-08-06 | 中兴通讯股份有限公司 | IP load establishing method in mobile communication system |
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| 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 |
| CN101237396A (en) * | 2007-01-30 | 2008-08-06 | 中兴通讯股份有限公司 | IP load establishing method in mobile communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011134354A1 (en) * | 2010-04-30 | 2011-11-03 | 中兴通讯股份有限公司 | System, method and base station subsystem for realizing handover in local switch |
| US8718648B2 (en) | 2010-04-30 | 2014-05-06 | Zte Corporation | System, method and base station subsystem for realizing handover in local switch |
| WO2011153870A1 (en) * | 2010-06-11 | 2011-12-15 | 中兴通讯股份有限公司 | System, method and base station for implementing local switching transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101860926B (en) | 2015-04-01 |
| WO2010115379A1 (en) | 2010-10-14 |
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