CN101115241B - Method for adding idle relay mobile switching centre to underway group calling - Google Patents

Method for adding idle relay mobile switching centre to underway group calling Download PDF

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Publication number
CN101115241B
CN101115241B CN2006101032749A CN200610103274A CN101115241B CN 101115241 B CN101115241 B CN 101115241B CN 2006101032749 A CN2006101032749 A CN 2006101032749A CN 200610103274 A CN200610103274 A CN 200610103274A CN 101115241 B CN101115241 B CN 101115241B
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msc
group calling
calling
group
message
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Expired - Fee Related
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Chinese (zh)
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CN101115241A (en
Inventor
王宝义
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Global Innovation Polymerization LLC
Gw Partnership Co ltd
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Huawei Technologies Co Ltd
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Priority to CN2006101032749A priority Critical patent/CN101115241B/en
Priority to PCT/CN2007/070330 priority patent/WO2008014706A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/24—Interfaces between hierarchically similar devices between backbone network devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method that a free relay mobile switching centre joins in an ongoing group calling, which comprises that business users launch a group calling establishment request in a free relay MSC, and the relay mobile switching centre MSC sends a calling establishment message to the master control MSC; after the master control MSC receives the calling establishment message, and judges that the group calling is ongoing, then the master control MSC refuses the calling establishment request, and meanwhile, judges that the relay MSC is not in the ongoing group calling, and then a preparing group calling message is sent to the relay MSC; the relay MSC receives the preparing group calling message of the master control MSC, establishes a group calling and then joins in the ongoing group calling. The invention ensures business users who roam in the free relay MSC be able to join in the ongoing group calling.

Description

Idle Tandem Mobile Switching Center adds the method for the group calling of well afoot
Technical field
The present invention relates to the trunking communicating technology field, relate in particular to a kind of method of setting up the group calling of failure or unusual Tandem Mobile Switching Center (MSC) the adding well afoot that discharges.
Background technology
Voice group call service (VGCS) is to realize that many people talk (6 talkers at the most) simultaneously, the business that the people of incalculability restriction listens speech; Voice Broadcast Service (VBS) is a kind of special case of VGCS business, realizes 1 and only 1 people's speech, the business that the people of incalculability restriction listens speech.VGCS, VBS business have all realized the some people speech, and many people listen the voice communication mode of the point-to-multipoint of speech, have broken through the limitation of point-to-point communication, can set up calling fast.
In third generation partner program (3GPP) agreement, stipulate, when initiating group calling, controlling MSC is when the connection that is established to relay MSC, if relay MSC is set up failure, as return and prepare group calling failure response (PREPARE_GROUP_CALL_NEGATIVE_RSP) message, then in this was called out, controlling MSC thought that described relay MSC no longer is the relay MSC in this group calling.
As shown in Figure 1, as shown in Figure 1, calling business user is initiated group calling and is set up request, to base station sub-system (BSS) channel request (CHAN_REQ) message, BSS returns assignment immediately (IMM_ASS) message and distributes SDCCH (Dedicated Control Channel) channel for caller MS caller travelling carriage (MS) by Random Access Channel (RACH);
Caller MS on the SDCCH channel to BSS send one comprise business request information Asynchronous Balanced Mode (SABM) frame is set, after BSS receives this SABM frame, return a link setup and withdraw approval (UA) frame of chain to caller MSC;
Wherein, carry information such as the international mobile subscriber identifier (IMSI) of caller MS and type of service in service request (SERV_REQ) message;
BSS is by complete layer three information (COM_L3_INF0), carries the SERV_REQ message that MS reports and sends to controlling MSC; Controlling MSC asks (PROC_ACC_REQ) message to check to VLR Visitor Location Register (VLR) whether the user that request makes a call is validated user by handling to insert; VLR returns to handle to controlling MSC and inserts response (PROC_ACC_ACK) message, notifies controlling MSC with check result;
User identity is legal if make a call, and controlling MSC carries out authentication and encryption (Authentication﹠amp to caller MS; Ciphering);
Caller MS sends call setup (SETUP) message to controlling MSC, and the called number that comprises in the message is group ID; After controlling MSC is received setup requests, check whether the contracted group ID of group-calling service and desire initiation of caller MS to VLR by sending information request (SEND_INFO_OUT) message; Pass through if VLR checks, promptly caller MS is the group-calling service contracted user, and the group ID of request is legal, just returns to controlling MSC and finishes calling (COMPLETE_CALL) message, also comprises the signatory data of caller MS in the message;
State from GCR inquiry (GCR_INT) message to GCR inquiry desire and group calling attribute data that controlling MSC is initiated group calling by, wherein, the data that write down among the GCR have: group calling state (free time or well afoot), group calling attribute data (priority, cryptographic algorithm, channel type etc.), cell list, dispatcher's tabulation, relay MSC tabulation etc.; GCR returns Query Result by GCR inquiry response (GCR_INT_ACK) message to controlling MSC, if the group calling well afoot, then controlling MSC will be refused the calling that service-user is initiated;
Controlling MSC sends assignment request (ASS_REQ) to BSS, for caller MS distributes a Bearer Channel;
Make caller MS access channel by Channel Mode Modify (CH_MOD_MODIFY) message and Channel Mode Modify response (CH_MOD_MODIFY_ACK) message between BSS and the caller MS, BSS finishes (ASS_COMP) message informing controlling MSC caller MS assignment by assignment and finishes;
Afterwards, controlling MSC sends group calling to BSS and sets up (VGCS_SETUP) message, sets up the calling control connection of controlling MSC to BSS;
Controlling MSC sends to relay MSC and prepares group calling (PREPARE_GROUP_CALL) message, comprise group call reference, group calling attribute data (cryptographic algorithm, priority, Codec information) in the message, controlling MSC uses this message to begin to be established to the connection of relay MSC;
During this, BSS sends group calling to controlling MSC and sets up response (VGCS_SETUP_ACK) message, after controlling MSC is received this message, begins to be each cell allocation resource;
Controlling MSC is by group calling assignment request (VGCS_ASS_REQ) message, to BSS request assignment group calling passage; BSS sends group calling assignment result (VGCS_ASS_RESULT) message to controlling MSC, notice controlling MSC group-calling channel assignment success.
After relay MSC is received and is prepared group calling message, send state and the group calling attribute data that GCR_INT information query desire is initiated group calling to relaying GCR, wherein, the data that write down among the GCR have: group calling state (free time or well afoot), cell list, controlling MSC address; GCR returns Query Result by GCR_INT_ACK message to relay MSC;
Relay MSC is wailed sign indicating number (ALLOCATE_GROUP_CALL_NUMBER) request message requests VLR assign group by assign group and is wailed sign indicating number; VLR sends assign group to relay MSC and wails sign indicating number response (ALLOCATE_GROUP CALL_NUMBER_ACK) message, returns the group calling number;
If relay MSC to master control MAC return prepare the group calling response before, failure is set up in the relay MSC group calling, for example, relay MSC inquiry GCR failure, assign group are wailed sign indicating number failure etc., and relay MSC is returned to controlling MSC and prepared group calling failure response (PREPARE_GROUP_CALL_NEGATIVE_RSP) message.Controlling MSC in this is called out, thinks that described relay MSC no longer is the relaying MAC in this group calling for the relay MSC of setting up failure.
In carrying out for follow-up group calling, the service-user that roams in the relay MSC of described foundation failure can't add in this group calling.
Summary of the invention
Technical problem to be solved by this invention provides the method that a kind of free relay MSC adds the group calling of well afoot, solves the group calling that the service-user that roams in described foundation failure or the unusual relay MSC that discharges can add well afoot with this.
For this reason, the Tandem Mobile Switching Center that the invention provides a kind of free time adds the method for the group calling of well afoot, comprising:
Step a: service-user is initiated group calling and is set up request in being in free relay MSC, Tandem Mobile Switching Center MSC sends call setup message to controlling MSC;
Step b: after controlling MSC was received call setup message, when judging the group calling well afoot, controlling MSC was refused this setup requests, judged this relay MSC simultaneously not in ongoing group calling the time, sent to prepare group calling message to relay MSC;
Step c: relay MSC is set up group calling after receiving the preparation group calling message of controlling MSC, adds in the ongoing group calling.
Wherein, before step a, comprising:
Service-user is initiated group calling in being in free relay MSC, it is the free time that relay MSC inquiry Group Call Register, Group Call Register return the group calling state, reach the controlling MSC address.
Wherein, described relay MSC comprises in the call setup message that controlling MSC sends: the calling number and the called number that are used to make controlling MSC identification calling business user place relay MSC, described calling number is the relay MSC number, and described called number is a group call reference.
After described controlling MSC was received call setup message, controlling MSC knew that according to called number this calling is group calling, knows and write down the relay MSC at calling business user place according to calling number.
Wherein, step b comprises:
After controlling MSC was received call setup message, controlling MSC inquiry Group Call Register was learnt the group calling well afoot, and controlling MSC returns release message to relay MSC, and cause value is busy for the user; After relay MSC is received the release message of controlling MSC, the group calling that the refusal service-user is initiated, cause value is busy for the user; Relay MSC is returned Release complete to controlling MSC;
Controlling MSC according to each relay MSC of its record whether the sign in group calling judge that this relay MSC is whether in ongoing group calling; If not in ongoing group calling, then controlling MSC sends to relay MSC and prepares group calling message.
Wherein, step c comprises:
Step c1: after relay MSC was received the preparation group calling message of controlling MSC, request Visited Location Registor assign group was wailed sign indicating number, and the group calling number is sent to controlling MSC by preparing the group calling response message;
Step c2: controlling MSC is selected the interoffice route according to the group calling number, sends call setup message to relay MSC, and the speech channel that is established to relay MSC connects; After relay MSC is received the call setup message of controlling MSC, be established to each base station controller in the group call region the calling control connection, and in the group call region speech channel of each sub-district connect.
Step c3: relay MSC is returned connection message to controlling MSC after setting up and finishing, and sends group calling end signaling request message;
Step c4: be rejected the service-user of initiating group calling and add group calling by the group calling notification message of in the sub-district, broadcasting.
Because when controlling MSC was received the call setup message of relay MSC initiation, the group calling well afoot arrived the connection of described relay MSC simultaneously and does not set up, so controlling MSC is established to the connection of described relay MSC.
The present invention makes and roams in the group calling that the service-user of setting up in failure or the unusual relay MSC that discharges can add well afoot.
Description of drawings
Relay MSC was set up the failed signaling flow chart when Fig. 1 was the initiation group calling of describing in the 3GPP agreement;
Fig. 2 is signaling process figure of the present invention.
Embodiment
Below, describe the present invention in conjunction with the accompanying drawings.
As shown in Figure 2, relay MSC is set up unusual release of failure or group calling foundation back in initiating group-calling process, and group calling is well afoot still.At this moment, the group calling of the GCR at relay MSC place sign is idle, and the GCR sign group calling at controlling MSC place is a well afoot.
The service-user that roams in described foundation failure or the unusual relay MSC that discharges is initiated group calling, and to the BSS channel request message, BSS returns immediate assignment message and distributes Dedicated Control Channel for caller MS MS by Random Access Channel;
Caller MS on Dedicated Control Channel to BSS send one comprise business request information Asynchronous Balanced Mode SABM frame is set, after BSS receives described SABM frame, return a link setup and withdraw the approval frame of chain to caller MS;
Wherein, carry information such as the IMSI of caller MS and type of service in the business request information;
BSS is by complete layer three informational message, carries the business request information that caller MS reports and sends to relay MSC; Afterwards, relay MSC checks to VLR whether the user that request makes a call is validated user by handling the access request message; VLR notifies relay MSC by handling the access response message with check result;
User identity is legal if make a call, and relay MSC is carried out authentication and encrypted Authentication﹠amp caller MS; Ciphering;
Caller MS sends call setup message to relay MSC, and the called number that comprises in the message is group ID; After relay MSC is received setup requests, check whether the contracted group ID of group-calling service and desire initiation of caller MS to VLR by sending information request message; Pass through if VLR checks, promptly caller MS is the group-calling service contracted user, and the group ID of request is legal, just returns to relay MSC and finishes message related to calls, also comprises the signatory data of caller MS in the message;
State from the GCR query messages to GCR inquiry desire and group calling attribute data that relay MSC is initiated group calling by, wherein, the data that write down among the GCR have: group calling state (free time or well afoot), cell list, controlling MSC address etc., and this moment, GCR was designated well afoot with group calling; GCR returns Query Result by the GCR query response message to relay MSC;
Relay MSC sends ASS_REQ message to BSS, for caller MS distributes a Bearer Channel;
Make caller MS access channel by Channel Mode Modify message and Channel Mode Modify response message between BSS and the caller MS, BSS also finishes message informing relay MSC caller MS assignment by assignment and finishes;
Relay MSC sends call setup message to controlling MSC, the notice controlling MSC is set up group calling, comprise in this call setup message: the calling number and the called number that are used to make controlling MSC identification calling business user place relay MSC, described calling number is the relay MSC number, and described called number is a group call reference; After described controlling MSC was received call setup message, controlling MSC knew that according to called number this calling is group calling, knows and write down the relay MSC at calling business user place according to calling number.
After controlling MSC is received setup requests, send state and the group calling attribute data that GCR query messages inquiry desire is initiated group calling to the GCR at controlling MSC place, wherein, the data that write down among the GCR have: group calling state (free time or well afoot), cell list, group calling attribute data, dispatcher's tabulation, relay MSC tabulation etc.; GCR returns Query Result by GCR inquiry failed message to controlling MSC, expression group calling well afoot, the respective call that controlling MSC refusal service-user is initiated;
Controlling MSC sends the release message that cause value does for the user to relay MSC, and the caller MS of relay MSC in roaming in relay MSC sends the termination messages that cause value does for the user, and relay MSC sends clear command to BSS, removes the proprietary connection that caller MS uses;
Relay MSC is returned Release complete to controlling MSC;
Relay MSC sends group calling to GCR and stops (VGCS_TERMIN) message, and GCR is idle with the group calling status indicator;
At this moment, controlling MSC according to each relay MSC of its record whether the sign in group calling judge that this relay MSC is not in ongoing group calling.Controlling MSC sends prepares group calling message to this relay MSC, is established to the connection of this relay MSC;
Relay MSC inquiry GCR, GCR is a well afoot with this group calling status indicator, GCR returns Query Result by the GCR query response message and gives relay MSC;
Relay MSC is wailed sign indicating number message by assign group and is wailed sign indicating number to VLR request assign group, and VLR wails the sign indicating number response message by assign group the group calling number is returned to relay MSC;
After relay MSC obtains the group calling number, by preparing the group calling response message group calling number is passed to controlling MSC, controlling MSC is selected the interoffice route according to the group calling number, sends call setup message to relay MSC;
Relay MSC sends to VLR and discharges group calling number message, discharges the group calling number that distributes;
Relay MSC sends the calling control connection that group calling is established to BSS to BSS.After the calling control connection was set up and finished, relay MSC sent the group calling assignment request message to BSS, asks to be the cell allocation wireless channel;
After radio channel allocation in the group call cell is finished, can broadcast the notification message that comprises group call reference and channel description in the group call cell.The service-user that roams in the relay MSC is described the access group calling channel by the channel in the notification message, adds group calling;
After relay MSC was set up and finished, relay MSC sent connection message to controlling MSC, sends group calling end signal request message simultaneously to controlling MSC, and the group calling of expression relay MSC is set up and finished;
So far, setting up the relay MSC of failing or discharging has unusually joined in the ongoing group calling.Caller MS can add group calling by the notification message of broadcasting in its sub-district, place.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. the Tandem Mobile Switching Center of a free time adds the method for the group calling of well afoot, it is characterized in that:
Step a: service-user is initiated group calling and is set up request in being in free relay MSC, Tandem Mobile Switching Center MSC sends call setup message to controlling MSC;
Step b: after controlling MSC was received call setup message, when judging the group calling well afoot, controlling MSC was refused this setup requests, judged this relay MSC simultaneously not in ongoing group calling the time, sent to prepare group calling message to relay MSC;
Step c: relay MSC is set up group calling after receiving the preparation group calling message of controlling MSC, adds in the ongoing group calling.
2. method according to claim 1 is characterized in that, before step a, comprising:
Service-user is initiated group calling in being in free relay MSC, it is the free time that relay MSC inquiry Group Call Register, Group Call Register return the group calling state, reach the controlling MSC address.
3. method according to claim 1, it is characterized in that, described relay MSC comprises in the call setup message that controlling MSC sends: the calling number and the called number that are used to make controlling MSC identification calling business user place relay MSC, described calling number is the relay MSC number, and described called number is a group call reference.
4. method according to claim 3 is characterized in that, after controlling MSC was received call setup message, controlling MSC knew that according to called number this calling is group calling, knows and write down the relay MSC at calling business user place according to calling number.
5. method according to claim 1 is characterized in that step b comprises:
After controlling MSC was received call setup message, controlling MSC inquiry Group Call Register was learnt the group calling well afoot, and controlling MSC returns release message to relay MSC, and cause value is busy for the user; After relay MSC is received the release message of controlling MSC, the group calling that the refusal service-user is initiated, cause value is busy for the user; Relay MSC is returned Release complete to controlling MSC;
Controlling MSC according to each relay MSC of its record whether the sign in group calling judge that this relay MSC is whether in ongoing group calling; If not in ongoing group calling, then controlling MSC sends to relay MSC and prepares group calling message.
6. method according to claim 1 is characterized in that step c comprises:
Step c1: after relay MSC was received the preparation group calling message of controlling MSC, request Visited Location Registor assign group was wailed sign indicating number, and the group calling number is sent to controlling MSC by preparing the group calling response message;
Step c2: controlling MSC is selected the interoffice route according to the group calling number, sends call setup message to relay MSC, and the speech channel that is established to relay MSC connects; After relay MSC is received the call setup message of controlling MSC, be established to each base station controller in the group call region the calling control connection, and in the group call region speech channel of each sub-district connect.
Step c3: relay MSC is returned connection message to controlling MSC after setting up and finishing, and sends group calling end signaling request message;
Step c4: be rejected the service-user of initiating group calling and add group calling by the group calling notification message of in the sub-district, broadcasting.
CN2006101032749A 2006-07-24 2006-07-24 Method for adding idle relay mobile switching centre to underway group calling Expired - Fee Related CN101115241B (en)

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CN2006101032749A CN101115241B (en) 2006-07-24 2006-07-24 Method for adding idle relay mobile switching centre to underway group calling
PCT/CN2007/070330 WO2008014706A1 (en) 2006-07-24 2007-07-20 A method for an idle relay mobile switching center joining a group call which is in progress and the system and mobile switching center thereof

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CN2006101032749A CN101115241B (en) 2006-07-24 2006-07-24 Method for adding idle relay mobile switching centre to underway group calling

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CN101115241B true CN101115241B (en) 2010-07-28

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CN103024679A (en) * 2011-09-20 2013-04-03 华为技术有限公司 Method and network equipment for creating cluster call

Citations (2)

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Publication number Priority date Publication date Assignee Title
WO2002089501A1 (en) * 2001-04-30 2002-11-07 Winphoria Networks, Inc. System and method of group calling in mobile communications
CN1659916A (en) * 2002-02-14 2005-08-24 高通股份有限公司 A server for joining a user to a group call in a group communication network

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GB2368493B (en) * 2000-10-23 2003-02-26 Motorola Israel Ltd Access permissions for group calls

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089501A1 (en) * 2001-04-30 2002-11-07 Winphoria Networks, Inc. System and method of group calling in mobile communications
CN1659916A (en) * 2002-02-14 2005-08-24 高通股份有限公司 A server for joining a user to a group call in a group communication network

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