CN105744488A - Method and system for establishing cluster service - Google Patents
Method and system for establishing cluster service Download PDFInfo
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- CN105744488A CN105744488A CN201410758181.4A CN201410758181A CN105744488A CN 105744488 A CN105744488 A CN 105744488A CN 201410758181 A CN201410758181 A CN 201410758181A CN 105744488 A CN105744488 A CN 105744488A
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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Abstract
The invention provides a method and a system for establishing a cluster service. The method for establishing the cluster service comprises following steps: group calling initiating BSS receives a voice group calling request sent by an initiator and sends a service request message carrying supported voice coding-decoding types to a mobile switching center (MSC) according to the voice group calling request; the MSC receives a first group calling establishing request message sent by the initiator after the service of the MSC and the initiator is connected, wherein the first group calling establishing request message carries the voice coding-decoding types supported by the initiator and the group calling receiving BSS information; the MSC selects a first voice coding-decoding type for the use of the group calling initiating BSS through the group calling initiating BSS according to the service request message and the first group calling establishing request message; the MSC selects a second voice coding-decoding type for the use of the group calling receiving BSS through the group calling BSS according to the first voice coding-decoding type; group calling receiving BSS assigns the selected results to corresponding users. According to the technical scheme, by means of the IP-based A interface, voice group calling service is carried out with increased voice service quality and reduced network cost.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to the method and system that a kind of group service is set up.
Background technology
The development trend of current communications industry: message volume quickly increases, IP (between InternetProtocol network the agreement of interconnection) data traffic requirement quickly grows, and this trend constitutes the powerful driving force of network transformation.Operator is in the urgent need to by the data service more rich to complete IP network offer, reducing cost, and promote profit by high performance-price ratio, differentiated business, have become as the common recognition of domestic and international mainstream carrier to full IP direction evolution.
In global system for mobile communications (GSM) voice communication system, it is achieved the IPization of Radio Access Network, i.e. the IPization of iterative method A interface, Abis interface, is the key factor of full IP of marching toward.Abis interface belongs to internal interface, the current comparative maturity of its IPization scheme.
A interface is base station sub-system (BaseStationSystem in gsm system, and Mobile Switching Center Server (MobileSwitchingCentreServer BSS), MSCServer) interface and between WMG (MediaGateWay, MGW).A interface support provides all CS territory (circuit commutative field) business to GSM user, transmits the information such as relevant call treatment, BTS management, mobile platform management, channel management simultaneously.A interface adopts IP mode voice-bearer, it is possible to achieve encoderless operation (TranscoderFreeOperationTrFO).Base station controller (BSC) side does not retain pattern variator (TransCodecTC) function, and TC moves on to MGW, and under same MGW, multiple BSC share TC, can save TC resource.
In existing gsm system, support that A interface is the voice under IP bearing mode and data service.GSM-R (the comprehensive special digital mobile communication system that RailwaysGlobalSystemforMobilecommunication designs for railway communication) system is increase advanced voice call traffic performance on original public network gsm system, including voice group call service (VoiceGroupCallService, and Voice Broadcast Service (VoiceBroadcastService VGCS), VBS), the Voice Dispatch service needed for the railway system can be provided flexibly.Voice group call service and Voice Broadcast Service are all the cluster voice communication modes in many ways participated in, breach the limitation of point-to-point communication, it is achieved that people's speech, the point-to-multipoint speech communication mode in many ways listened to, and can quickly set up calling, both business can be collectively referred to as group-calling service.
Current GSM-R system has been carried out the IPization of Abis interface, but A interface is still based on time division multiplex (TimeDivisionMultiple, TDM) carry, when A interface uses TDM carrying, BSC in each base station sub-system is required for use a TC, so as the pattern conversion carried out between base station sub-system, so, one TC of configuration will be required on each BSC, the cost of equipment is relatively big, and due to the complexity of coding, voice delay time can be made after being encoded by TC longer, voice quality can be influenced by impact simultaneously, and the experience causing user is poor.
Summary of the invention
The invention provides the method and system that a kind of group service is set up, solve A interface in prior art can not IPization to make to set up, at group service, the TC equipment needing use in process more, and the problem that sound effect is bad.
In order to solve the problems referred to above, the present invention by the following technical solutions:
A kind of method that group service is set up, including:
Group is exhaled and is initiated the voice group call service request that base station sub-system reception initiator sends, and sends the business request information of the encoding and decoding speech type carrying its support to mobile switching centre according to the request of described voice group call service；
Described mobile switching centre sets up and the service connection of described initiator according to described business request information, and carrying of receiving that described initiator the sends encoding and decoding speech type that initiator supports and group exhale first group that receives base station sub-system information to exhale foundation request message；
Described mobile switching centre exhales according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use；
Described mobile switching centre according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station sub-system select described group exhale receive base station sub-system use the second encoding and decoding speech type；
Exhale the user that the voice coding type of its selection is assigned to its correspondence by reception base station sub-system for described group.
Further, the voice group call service initiating base station sub-system reception initiator's transmission is exhaled also to include before asking for described group: group exhales the random access channel request message that initiation base station sub-system receives described initiator transmission, and distributes data channel to described initiator；And by voice group call service request described in described data channel reception.
Further, described mobile switching centre exhales according to described business request information and first group to set up and asks message to exhale initiation base station sub-system to select described group to exhale the first encoding and decoding speech type that initiation base station sub-system uses to specifically include by described group:
Mobile switching centre exhales according to described first group to set up and asks message and group to exhale the encoding and decoding speech type initiating base station sub-system support to exhale initiation base station sub-system to send the first assignment request message carrying preferred encoding and decoding speech list to described group；
Exhale initiation base station sub-system, according to described first assignment request message, described initiator distributes voice channel, and in described preferred encoding and decoding speech list, select the first encoding and decoding speech type used according to encoding and decoding speech selection strategy for described group；
Exhale initiation base station sub-system that the first assignment completion message with described first encoding and decoding speech type is notified described mobile switching centre for described group.
Further, initiate the first assignment request message that base station sub-system sends also includes if described mobile switching centre exhales to described group: exhale the transport layer address information initiating WMG corresponding to base station sub-system for described group；Then the first assignment completion message that initiation base station sub-system sends to described mobile switching centre is exhaled also to include for described group: to exhale the transport layer address initiating base station sub-system for described group.
Further, described mobile switching centre exhales reception base station sub-system information to exhale reception base station sub-system to initiate second group to group according to described group and exhales foundation request message, and exhales the selection that reception base station sub-system completes encoding and decoding speech type to specifically include according to described first encoding and decoding speech type by described group:
Described mobile switching centre exhales reception base station sub-system information to exhale reception base station sub-system transmission group to exhale and set up message to group according to described group, and receives described group and exhale and receive the group that carries that base station sub-system sends and exhale the group of the encoding and decoding speech type receiving base station sub-system support to exhale foundation to confirm message；
Described mobile switching centre exhales foundation to confirm according to described group, and the second assignment request message carrying preferred encoding and decoding speech list is sent to described group and exhales reception base station sub-system by message；
Exhale reception base station sub-system to exhale voice channel according to described second assignment request message distribution group, and in described preferred encoding and decoding speech list, select the second encoding and decoding speech type of its use for described group.
Further, if the group that described mobile switching centre receives exhales the encoding and decoding speech type set up in confirmation message to include described first encoding and decoding speech type, then the preferred encoding and decoding speech list received in the second assignment request message that base station sub-system sends is exhaled, to described group, by described mobile switching centre is the first encoding and decoding speech type；
Or, if the group that described mobile switching centre receives exhales to set up in the encoding and decoding speech type confirmed in message does not include described first encoding and decoding speech type, then described mobile switching centre exhales the preferred encoding and decoding speech list received in the second assignment request message that base station sub-system sends not include described first encoding and decoding speech type to described group；Exhale the encoding and decoding speech type the second encoding and decoding speech type as its use that reception base station sub-system selects optimum in described encoding and decoding speech list for described group.
Further, described mobile switching centre exhales to described group and receives the transport layer address information also including the described group of WMG exhaling reception base station sub-system corresponding in the second assignment request message that base station sub-system sends；Then exhale to receive in the result that base station sub-system notifies to described mobile switching centre and also include for described group: exhale the transport layer address information receiving base station sub-system for described group.
The system that a kind of group service is set up, including: group exhales initiation base station sub-system, group to exhale reception base station sub-system and mobile switching centre；
Exhale for described group and initiate the voice group call service request that base station sub-system sends for receiving initiator, and send, according to the request of described voice group call service, the business request information carrying the encoding and decoding speech type that initiator supports to mobile switching centre；
Described mobile switching centre is for setting up and the service connection of described initiator according to described business request information, and receives the encoding and decoding speech type carrying its support that described initiator sends and group exhales first group that receives base station information to exhale foundation request message；
Described mobile switching centre is additionally operable to exhale according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use；
Described mobile switching centre be additionally operable to according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station select subsystem select described group exhale receive base station sub-system use the second encoding and decoding speech type；
Exhale reception base station sub-system for the second voice coding type of its selection is assigned to the user of its correspondence for described group.
Further, exhale initiation base station sub-system to be additionally operable to receive the random access channel request message that described initiator sends, and distribute data channel to described initiator for described group；And by voice group call service request described in described data channel reception.
Further, described mobile switching centre is for setting up and the service connection of described initiator according to described business request information, and receives the encoding and decoding speech type carrying its support that described initiator sends and group exhales first group that receives base station information to exhale foundation request message to specifically include:
Described mobile switching centre asks message and group to exhale the encoding and decoding speech type initiating base station sub-system support to exhale initiation base station sub-system to send the first assignment request message carrying preferred encoding and decoding speech list to described group for exhaling according to described first group to set up；
Exhale initiation base station sub-system to be additionally operable to, according to described first assignment request message, described initiator distributes voice channel, and in described preferred encoding and decoding speech list, select the first encoding and decoding speech type used according to encoding and decoding speech selection strategy for described group；
Initiation base station sub-system is exhaled to be additionally operable to the first assignment completion message with described first encoding and decoding speech type is notified described mobile switching centre for described group.
Further, described mobile switching centre is additionally operable to exhale to described group and initiates base station sub-system and send described group and exhale the transport layer address information initiating WMG corresponding to base station sub-system, and receives described group and exhale and initiate described group that base station sub-system sends and exhale the transport layer address initiating base station sub-system.
Further, described mobile switching centre is additionally operable to exhale to described group and receives base station sub-system and send described group and exhale the transport layer address information receiving WMG corresponding to base station sub-system, and receives described group and exhale and receive described group that base station sub-system sends and exhale the transport layer address information receiving base station sub-system.
nullThe invention provides the method and system that a kind of group service is set up，When A interface in GSM-R system is IP carrying，Set up the voice group call service detailed process for the assignment of encoding and decoding speech type，Need initiator and group to exhale initiation base station sub-system all the encoding and decoding speech type information that oneself is supported to be reported mobile switching centre to hold consultation，Mobile switching centre considers the information of its reception，Preferred encoding and decoding speech type is handed down to group by the message that A interface issues and exhales initiation base station sub-system，Group exhales the encoding and decoding speech type initiating the base station sub-system preferred sequence according to mobile switching centre this calling of policy selection in conjunction with oneself，And selected result to notify mobile switching centre，Mobile switching centre selects result to exhale other groups in scope to exhale reception base station sub-system to complete the selection of encoding and decoding speech type in group according to it.When the two ends of calling adopt identical code/decode type, this calling can realize TrFO, exempts encoding and decoding conversion, both can improve voice quality, and can save again TC resource；Even if concentrated speech business can not be reached set up TrFO, also can share TC because of BSC multiple under MGW, reach to simplify networking, save the purpose of TC resource.And, under A interface IPization, when carrying out voice group call service, it is possible to promote concentrated speech business quality, reduce network cost, reduce and build optimization and maintenance management difficulty, be conducive to mobile switching centre POOL (MSC pool) networking.
Accompanying drawing explanation
The flow chart of the method that Fig. 1 sets up for the group service that the embodiment of the present invention one provides；
Fig. 2 exhales initiation base station sub-system to set up group for the group that the embodiment of the present invention two provides and exhales the method flow schematic diagram of assignment；
Fig. 3 exhales reception base station sub-system to set up group for the group that the embodiment of the present invention two provides and exhales the method flow schematic diagram of assignment.
Detailed description of the invention
The present invention is described in further detail in conjunction with accompanying drawing below by detailed description of the invention.
The flow chart of the method that the group service that being illustrated in figure 1 the embodiment of the present invention one provides is set up, refers to Fig. 1, and the method includes:
S101: group is exhaled and initiated the voice group call service request that base station sub-system reception initiator sends, and sends the business request information of the encoding and decoding speech type carrying its support to mobile switching centre according to the request of described voice group call service.Specifically, initiation base station sub-system is exhaled also to include before receiving the voice group call service request that initiator sends performing this step S101 group: group is exhaled and initiated the random access channel request message that the base station sub-system described initiator of reception sends, and distributes data channel to described initiator；Ask again through voice group call service described in described data channel reception.
S102: mobile switching centre sets up and the service connection of described initiator according to described business request information, and carrying of receiving that described initiator the sends encoding and decoding speech type that initiator supports and group exhale first group that receives base station sub-system information to exhale foundation request message.Specifically, after described mobile switching centre receives described business request information, send a business to described initiator and receive message, and receive described initiator send first group exhale foundation request message, exhale and set up request message and include the particular content that this group is exhaled, specifically include for described first group: encoding and decoding speech type that group exhales object, group calling function number, group calling priority, initiator to support and ability etc..
S103: mobile switching centre exhales according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use.Specifically, mobile switching centre exhales according to described first group to set up and asks message and group to exhale the encoding and decoding speech type initiating base station sub-system support to exhale initiation base station sub-system to send the first assignment request message carrying preferred encoding and decoding speech list to described group, preferably, mobile switching centre consider initiator and described group exhale the ability initiating base station sub-system, in the first assignment request message that A interface issues, preferred encoding and decoding speech type is handed down to group and exhales initiation base station sub-system；Initiation base station sub-system is exhaled to distribute voice channel according to described first assignment request message to described initiator for described group, and in described preferred encoding and decoding speech list, the first encoding and decoding speech type used is selected according to encoding and decoding speech selection strategy, exhale the encoding and decoding speech type initiating the base station sub-system preferred sequence according to mobile switching centre this calling of policy selection in conjunction with oneself for described group, its selection strategy is primarily to and meets as far as possible: the two ends of calling adopt identical encoding and decoding speech type, make calling can realize TrFO, exempt encoding and decoding conversion, both voice quality can have been improved, TC resource can be saved again；Finally, exhale initiation base station sub-system that the first assignment completion message with described first encoding and decoding speech type is notified described mobile switching centre for described group.In the present embodiment, initiate the first assignment request message that base station sub-system sends also includes if described mobile switching centre exhales to described group: exhale the transport layer address information initiating WMG corresponding to base station sub-system for described group；Then the first assignment completion message that initiation base station sub-system sends to described mobile switching centre is exhaled also to include for described group: to exhale the transport layer address initiating base station sub-system for described group.This way it is possible to realize when A interface transmits voice, group exhales the purpose that the user face initiating to set up IP mode between base station sub-system and the MGW of its correspondence connects.
S104: mobile switching centre according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station sub-system select described group exhale receive base station sub-system use the second encoding and decoding speech type.Specifically, described mobile switching centre exhales reception base station sub-system information that group is exhaled the group in scope exhale reception base station sub-system transmission group to exhale according to described group and sets up message, and receives described group and exhale and receive the group that carries that base station sub-system sends and exhale the group of the code/decode type receiving base station sub-system support to exhale foundation to confirm message；Described mobile switching centre exhales foundation to confirm according to described group, and the second assignment request message carrying preferred encoding and decoding speech list is sent to described group and exhales reception base station sub-system by message；Exhale reception base station sub-system to exhale voice channel according to described second assignment request message distribution group, and in described preferred encoding and decoding speech list, select the second encoding and decoding speech type of its use, finally also result is notified described mobile switching centre for described group.In this embodiment, described mobile switching centre exhales to described group and receives the transport layer address information also including the described group of WMG exhaling reception base station sub-system corresponding in the second assignment request message that base station sub-system sends；Then exhale to receive in the result that base station sub-system notifies to described mobile switching centre and also include for described group: exhale the transport layer address information receiving base station sub-system for described group.Similarly, it is possible to when realizing using A interface IPization transmission voice, group is exhaled to receive and is set up the purpose that the user face of IP mode connects between base station sub-system and the MGW of its correspondence.
In the present embodiment, if the group that described mobile switching centre receives exhales the encoding and decoding speech type set up in confirmation message to include described first encoding and decoding speech type, then the preferred encoding and decoding speech list received in the second assignment request message that base station sub-system sends is exhaled, to described group, by described mobile switching centre is the first encoding and decoding speech type, so, when described group is exhaled reception base station sub-system to use the first encoding and decoding speech type as the second encoding and decoding speech type of its use, initiator and recipient is made to use identical tone decoding type, achieve TrFO, exempt encoding and decoding conversion, both voice quality can have been improved, TC resource can be saved again；Or, if the group that described mobile switching centre receives exhales to set up in the encoding and decoding speech type confirmed in message does not include described first encoding and decoding speech type, then described mobile switching centre exhales the preferred encoding and decoding speech list received in the second assignment request message that base station sends not include described first encoding and decoding speech type to described group；Exhale the encoding and decoding speech type the second encoding and decoding speech type as its use that reception base station sub-system selects optimum in described encoding and decoding speech list for described group, now, TrFO completely may not be set up in concentrated speech business, but multiple BSC share TC under MGW, can also reach to simplify networking, save the purpose of TC resource.
S105: group exhales reception base station sub-system that the second encoding and decoding speech type of its selection is assigned to the user of its correspondence.Specifically, group exhales reception base station sub-system to select encoding and decoding speech type to exhale each community distribution group-calling channel in scope in group according to the encoding and decoding speech list that mobile switching centre requires, and distribute terminate after, group is exhaled assignment results messages be sent to mobile switching centre, and exhales in assignment results messages at described group the encoding and decoding speech type of selection is sent to mobile switching centre.
It should be noted that this programme all carries out when described A interface is IP carrying.Owing to when A interface is IP carrying, TC moving on to MGW side, in order to save TC resource and improve voice quality, it is necessary to set up base station sub-system and mobile switching centre side in process in business and carry out the negotiation of encoding and decoding speech, realizing TrFO with expectation.
Specifically the present invention will be described below the group service method for building up in the present invention to be divided into two parts, proceed from the reality, GSM-R system realizes group service method for building up concrete steps include: exhale initiation base station sub-system to set up group with group call initiator by group and exhale and group exhales reception base station sub-system to set up group and exhale two processes to illustrate, as shown in Figure 2, the group provided for the embodiment of the present invention two exhales initiation base station sub-system to set up group and exhale the method flow schematic diagram of assignment, and detailed process includes:
S201: initiate direction group and exhale initiation base station sub-system to send random access channel request message, be designated as initiation calling in channel request.
S202: after group exhales initiation base station sub-system to receive channel request message, by the channel notification initiator that assignment message immediately will distribute.
S203: initiator sends on the channel of distribution and sets up instruction message, and voice group call service is set up in instruction.
S204:: group exhales what initiate that base station sub-system judges this foundation to be voice group call service, and A interface is IP bearing mode, then, in complete layer three message being sent to mobile services switching centre, carry the encoding and decoding speech type that base station sub-system is supported.
S205:: mobile switching centre sends CM business to initiator and accepts message after confirming that initiator subscribes group-calling service.
S206: initiator receives after CM business accepts message, sends to mobile switching centre and sets up message, message includes the particular content that this group is exhaled, the coding/decoding capability etc. that such as group calling function number, group calling priority, MS support.
S207: mobile switching centre receives after setting up message, exhales initiation base station sub-system to send assignment request message to group, asks to assign a Traffic Channel for initiator.Special, message needs to carry the transport layer address information of the preferred voice coding list of mobile switching centre, MGW.
S208: after group exhales initiation base station sub-system to receive assignment message, distribution services channel, select Speech version according to the preferred voice coding list of mobile switching centre.Then send Assignment Command message to initiator, inform the Traffic Channel that initiator distributes.
S209: after initiator receives Assignment Command message, sends assignment completion message in the Traffic Channel of distribution.
S210: after group exhales initiation base station sub-system to receive assignment completion message, sends assignment completion message to mobile switching centre, special, needs to carry the transport layer address of the voice coding type of this service selection and base station sub-system end in message.
As it is shown on figure 3, the group provided for the embodiment of the present invention two exhales reception base station sub-system to set up group and exhale the method flow schematic diagram of assignment, detailed process includes:
S301: after mobile switching centre receives the assignment completion message that group corresponding to initiator exhales initiation base station sub-system reply, exhales reception base station sub-system transmission group to exhale to group and sets up message, starts directly to set up SCCP (signaling connection control protocol) and connects.
The success of S302:SCCP connection establishment, group exhales reception base station sub-system to exhale foundation to confirm message to mobile switching centre's return group, carries the encoding and decoding speech type that group exhales reception base station sub-system to support in message.
S303: mobile switching centre receives group and exhales foundation to confirm message, exhales reception base station sub-system transmission group to exhale assignment request message to all relevant groups, wherein comprises the information such as group call reference.Special, message needs to carry the transport layer address information of the preferred voice coding list of mobile switching centre, MGW.
S304: group exhales reception base station sub-system to receive after group exhales assignment request message, distributes group-calling channel, selects Speech version according to the preferred voice coding list of mobile switching centre, exhale assignment results messages to mobile switching centre's transmission group.Special, message needs to carry voice coding type that this group-calling service selects and group exhales the transport layer address receiving the distribution of base station sub-system end.
S305: group exhales reception base station sub-system to exhale the content of assignment request message according to group, sends a notification message, and notice subscribes other service user to join in group-calling that this group is exhaled.
In sum, after A interface IPization, the wireless side in GSM-R system and core-network side can be avoided to carry out the conversion of encoding and decoding, it is achieved thereby that the TrFO of complete trails or part path, it is possible to improve voice quality, save equipment cost, further, transmission can also be reduced consume, improve transmission utilization ratio, reduce transmission cost.
The present invention also provides for the system that a kind of group service is set up, and described system includes: group exhales initiation base station sub-system, group to exhale reception base station sub-system and mobile switching centre；Exhale for described group and initiate the voice group call service request that base station sub-system sends for receiving initiator, and send, according to the request of described voice group call service, the business request information carrying the encoding and decoding speech type that initiator supports to mobile switching centre；Described mobile switching centre is for setting up and the service connection of described initiator according to described business request information, and receives the encoding and decoding speech type carrying its support that described initiator sends and group exhales first group that receives base station sub-system information to exhale foundation request message；Described mobile switching centre is additionally operable to exhale according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use；Described mobile switching centre be additionally operable to according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station sub-system select described group exhale receive base station sub-system use the second encoding and decoding speech type；Exhale reception base station sub-system for the second encoding and decoding speech type of its selection is assigned to the user of its correspondence for described group.The group service that the present embodiment provides sets up system, when A interface is IPization carrying, it is possible to realize the TrFO of calling most possibly, exempt encoding and decoding conversion, both can improve voice quality, and can save again TC resource.Even if concentrated speech business can not be reached set up TrFO, also can share TC because of BSC multiple under MGW, reach to simplify networking, save the purpose of TC resource.
The invention provides the method and system that a kind of group service is set up, when the A interface at gsm system is IP carrying, when the two ends of calling adopt identical code/decode type, calling can realize TrFO, exempt encoding and decoding conversion, both can improve voice quality, TC resource can be saved again.Even if concentrated speech business can not be reached set up TrFO, also can share TC because of BSC multiple under MGW, reach to simplify networking, save the purpose of TC resource.
Above content is in conjunction with specific embodiment further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, protection scope of the present invention all should be considered as belonging to.
Claims (12)
1. the method that a group service is set up, it is characterised in that including:
Group is exhaled and is initiated the voice group call service request that base station sub-system reception initiator sends, and sends the business request information of the encoding and decoding speech type carrying its support to mobile switching centre according to the request of described voice group call service；
Described mobile switching centre sets up and the service connection of described initiator according to described business request information, and carrying of receiving that described initiator the sends encoding and decoding speech type that initiator supports and group exhale first group that receives base station sub-system information to exhale foundation request message；
Described mobile switching centre exhales according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use；
Described mobile switching centre according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station sub-system select described group exhale receive base station sub-system use the second encoding and decoding speech type；
Exhale the user that the second encoding and decoding speech type of its selection is assigned to its correspondence by reception base station sub-system for described group.
2. the method that group service according to claim 1 is set up, it is characterized in that, exhale for described group and initiate also to include before base station sub-system receives the voice group call service request that initiator sends: group exhales initiation base station sub-system to receive the random access channel request message that described initiator sends, and distributes data channel to described initiator；Ask again through voice group call service described in described data channel reception.
3. the method that group service according to claim 1 and 2 is set up, it is characterized in that, described mobile switching centre exhales according to described business request information and first group to set up and asks message to exhale initiation base station sub-system to select described group to exhale the first encoding and decoding speech type that initiation base station sub-system uses to specifically include by described group:
Mobile switching centre exhales according to described first group to set up and asks message and group to exhale the encoding and decoding speech type initiating base station sub-system support to exhale initiation base station sub-system to send the first assignment request message carrying preferred encoding and decoding speech list to described group；
Exhale initiation base station sub-system, according to described first assignment request message, described initiator distributes voice channel, and in described preferred encoding and decoding speech list, select the first encoding and decoding speech type used according to encoding and decoding speech selection strategy for described group；
Exhale initiation base station sub-system that the first assignment completion message with described first encoding and decoding speech type is notified described mobile switching centre for described group.
4. the method that group service according to claim 3 is set up, it is characterized in that, initiate the first assignment request message that base station sub-system sends also includes if described mobile switching centre exhales to described group: exhale the transport layer address information initiating WMG corresponding to base station sub-system for described group；Then the first assignment completion message that initiation base station sub-system sends to described mobile switching centre is exhaled also to include for described group: to exhale the transport layer address initiating base station sub-system for described group.
5. the method that group service according to claim 3 is set up, it is characterized in that, described mobile switching centre exhales reception base station sub-system information to exhale reception base station sub-system to initiate second group to group according to described group and exhales foundation request message, and exhales the selection that reception base station sub-system completes encoding and decoding speech type to specifically include according to described first encoding and decoding speech type by described group:
Described mobile switching centre exhales reception base station sub-system information to exhale reception base station sub-system transmission group to exhale and set up message to group according to described group, and receives described group and exhale and receive the group that carries that base station sub-system sends and exhale the group of the encoding and decoding speech type receiving base station sub-system support to exhale foundation to confirm message；
Described mobile switching centre exhales foundation to confirm according to described group, and the second assignment request message carrying preferred encoding and decoding speech list is sent to described group and exhales reception base station sub-system by message；
Exhale reception base station sub-system to exhale voice channel according to described second assignment request message distribution group, and in described preferred encoding and decoding speech list, select the second encoding and decoding speech type of its use for described group.
6. the method that group service according to claim 5 is set up, it is characterized in that, if the group that described mobile switching centre receives exhales the encoding and decoding speech type set up in confirmation message to include described first encoding and decoding speech type, then the preferred encoding and decoding speech list received in the second assignment request message that base station sub-system sends is exhaled, to described group, by described mobile switching centre is the first encoding and decoding speech type；
Or, if the group that described mobile switching centre receives exhales to set up in the encoding and decoding speech type confirmed in message does not include described first encoding and decoding speech type, then described mobile switching centre exhales the preferred encoding and decoding speech list received in the second assignment request message that base station sub-system sends not include described first encoding and decoding speech type to described group；Exhale the encoding and decoding speech type the second encoding and decoding speech type as its use that reception base station sub-system selects optimum in described encoding and decoding speech list for described group.
7. the method that group service according to claim 5 is set up, it is characterized in that, described mobile switching centre exhales to described group and receives the transport layer address information also including the described group of WMG exhaling reception base station sub-system corresponding in the second assignment request message that base station sub-system sends；Then exhale to receive in the result that base station sub-system notifies to described mobile switching centre and also include for described group: exhale the transport layer address information receiving base station sub-system for described group.
8. the system that a group service is set up, it is characterised in that including: group exhales initiation base station sub-system, group to exhale reception base station sub-system and mobile switching centre；
Exhale for described group and initiate the voice group call service request that base station sub-system sends for receiving initiator, and send, according to the request of described voice group call service, the business request information carrying the encoding and decoding speech type that initiator supports to mobile switching centre；
Described mobile switching centre is for setting up and the service connection of described initiator according to described business request information, and receives the encoding and decoding speech type carrying its support that described initiator sends and group exhales first group that receives base station sub-system information to exhale foundation request message；
Described mobile switching centre is additionally operable to exhale according to described business request information and first group and sets up request message by described group of the first encoding and decoding speech type exhaling described group of initiation base station sub-system selection to exhale initiation base station sub-system to use；
Described mobile switching centre be additionally operable to according to described group exhale reception base station sub-system information to group exhale reception base station sub-system initiate second group exhale foundation request message, and according to described first encoding and decoding speech type by described group exhale receive base station sub-system select described group exhale receive base station sub-system use the second encoding and decoding speech type；
Exhale reception base station sub-system for the second encoding and decoding speech type of its selection is assigned to the user of its correspondence for described group.
9. the system that group service according to claim 8 is set up, it is characterised in that exhale initiation base station sub-system to be additionally operable to receive the random access channel request message that described initiator sends, and distribute data channel to described initiator for described group；Ask again through voice group call service described in described data channel reception.
10. the system that group service according to claim 8 or claim 9 is set up, it is characterized in that, described mobile switching centre is for setting up and the service connection of described initiator according to described business request information, and receives the encoding and decoding speech type carrying its support that described initiator sends and group exhales first group that receives base station sub-system information to exhale foundation request message to specifically include:
Described mobile switching centre asks message and group to exhale the encoding and decoding speech type initiating base station sub-system support to exhale initiation base station sub-system to send the first assignment request message carrying preferred encoding and decoding speech list to described group for exhaling according to described first group to set up；
Exhale initiation base station sub-system to be additionally operable to, according to described first assignment request message, described initiator distributes voice channel, and in described preferred encoding and decoding speech list, select the first encoding and decoding speech type used according to encoding and decoding speech selection strategy for described group；
Initiation base station sub-system is exhaled to be additionally operable to the first assignment completion message with described first encoding and decoding speech type is notified described mobile switching centre for described group.
11. the system that group service according to claim 10 is set up, it is characterized in that, described mobile switching centre is additionally operable to exhale to described group and initiates base station sub-system and send described group and exhale the transport layer address information initiating WMG corresponding to base station sub-system, and receives described group and exhale and initiate described group that base station sub-system sends and exhale the transport layer address initiating base station.
12. the system that group service according to claim 10 is set up, it is characterized in that, described mobile switching centre is additionally operable to exhale to described group and receives base station sub-system and send described group and exhale the transport layer address information receiving WMG corresponding to base station sub-system, and receives described group and exhale and receive described group that base station sub-system sends and exhale the transport layer address information receiving base station sub-system.
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| PCT/CN2015/086877 WO2016090941A1 (en) | 2014-12-10 | 2015-08-13 | Trunking service establishment method and system, and storage medium |
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| WO2016090941A1 (en) | 2016-06-16 |
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