CN101001424A - Method and system of service user applicating special uplink - Google Patents
Method and system of service user applicating special uplink Download PDFInfo
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- CN101001424A CN101001424A CNA2006100646692A CN200610064669A CN101001424A CN 101001424 A CN101001424 A CN 101001424A CN A2006100646692 A CNA2006100646692 A CN A2006100646692A CN 200610064669 A CN200610064669 A CN 200610064669A CN 101001424 A CN101001424 A CN 101001424A
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Abstract
This invention discloses a method for applying for up by service users including: a service user starts up an up request to an up idle relay mobile exchange center, which transmits an up request message to a primary control mobile exchange center by the route between the relay exchange center and the primary control exchange center to receive it and transmits the confirmation message to the relay to appoint a special channel to the service user and transmits phones of the service user on the special channel to the primary control exchange center via the route. This invention also discloses a system for applying for up by service users.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method and system of service user applicating special uplink in the voice group call service.
Background technology
Railway Global Link mobile communcations system (Global System for Mobile communication forRailway, be called for short GSM-R) be on global system for mobile communications (Global System for mobileCommunication is called for short " GSM "), to increase cluster communication function and the mobile communication system of a railway special use constituting.The clustering functionality that is increased comprises advanced speech call (AdvancedSpeech Call Item is called for short " ASCI ") function, by GSM Phase2+ (GSM stage 2+) standard definition.
The ASCI function has comprised the basic service of three kinds of specialized mobile radios: voice group call service (VoiceGroup Call Service, abbreviation " VGCS "), Voice Broadcast Service (Voice Broadcast Service, be called for short " VBS ") and the multipriority and the conversion (Enhanced Multi-Level Precedence andPre-emption, abbreviation " EMLPP ") that strengthen.
VGCS is the many people speech that is implemented in the VGCS zone, can the understand speech business of (hearer's quantity is unrestricted) of more people.The voice communication mode of the point-to-multipoint that VGCS realized the some people speech, listen to has in many ways broken through the limitation of point-to-point communication, can set up calling fast.In the VGCS system, when the VGCS zone surpassed the coverage of a mobile switching centre (Mobile Switching Center is called for short MSC), this group calling can have a plurality of MSC, wherein the MSC of master control is Anchor MSC, and other MSC is relay MSC (Relay MSC).Anchor MSC is responsible for whole calling, and the data of being in charge of have group call cell tabulation, the group calling Status Flag (whether do (Ongoing)) in group calling attribute, dispatcher's tabulation, Relay MSC tabulation, the Anchor MSC.The data that Relay MSC is in charge of have group call cell tabulation in the Relay MSC, Anchor MSC sign, group calling Status Flag (whether Ongoing).VGCS calls out the mode of initiating and mainly contains two kinds: service-user is imported group calling identification number (Group ID) on travelling carriage, selects the VGCS COS, initiates VGCS and calls out; The dispatcher initiates VGCS and calls out by directly dialing the group call reference number.
After group calling was set up, synchronization can only have a service-user speech.Service-user is by pressing the up speech of PTT (Push-to-Talk) key application group calling.When a service-user occupied the up speech of group-calling channel, other service-user can only be as the hearer.Service-user can also can be talked for this service-user distributes a dedicated channel by network side by taking the up speech of group-calling channel in the sub-district, place.If network is not supported the group call uplink preemptive priority, only the service-user of current speech discharge the speech of group calling up after, other service-user could be applied for up.
In the prior art, service-user applicating special uplink in Relay MSC of describing has only a kind of mode: in the Relay MSC during service user applicating special uplink, want earlier according to Anchor MSC address for this user set up one from Relay MSC to the proprietary speech channel of the interoffice of Anchor MSC, be dedicated channel of this user's assignment again.
Shown in Figure 1, the signaling process figure of service user applicating special uplink in the prior art.Its idiographic flow as shown in Figure 1, if the current up free time, the base station system BSS_R among the MSC_R (Relay MSC) (Base Station System) broadcasts " UPLINK_FREE " message in the sub-district;
Service-user need be in MSC_R during applicating special uplink, sends " UPLINK_ACCESS " message by travelling carriage (Mobile Station is called for short " MS ") to BSS_R;
After BSS_R received this MS's " UPLINK_ACCESS " message, up MS returned " VGCS_UPLINK_GRANT " message to application, and in the sub-district broadcasting " UPLINK_BUSY " message, indicate current up busy; BSS_R sends " UPLINK_REQUEST " message to MSC_R simultaneously, asks up.
After MS receives " VGCS_UPLINK_GRANT " message, with the SABM that comprises " TALKERINDICATION " message (SABM:Set Asynchronous Balanced Mode, Asynchronous Balanced Mode is set) frame sets up signaling and connects, and comprises mobile logo (Mobile Identity) in " TALKER INDICATION " message.After BSS_R receives the SABM frame, send UA (UA:Unnumbered Acknowledge, unnumbered acknowledge) frame to MS; MS enters the group sending mode after receiving the UA frame that BSS_R sends;
After MSC_R receives " UPLINK_REQUEST " message, by and MSC_A (controlling MSC) between speech channel to send " PROCESS_GROUP_CALL_SIGNAL " (uplink request) message request application to MSC_A up.Whether the MSC_A inspection allows to apply for up, if allow up, by and MSC_R between speech channel to the application up MSC_R return " FORWARD_GROUP_CALL_SIGNAL " (uplink_request_ack) message, and send " uplink_seized_command " message to other BSC and Relay MSC, indicate current up busy.MSC_R receive MSC_A's " FORWARD_GROUP_CALL_SIGNAL " (uplink_request_ack) after the message, use address architecture " IAM " (Initial AddressMessage, the initial address message) message of MSC_A to mail to MSC_A.After MSC_A receives MSC_R message, return " ACM " (Address Complete Message, message is finished in the address) message, return " ANM " (ANswer Message, response message) message simultaneously.After receiving " ANM " message of MSC_A, the proprietary speech channel of expression interoffice has been set up and has been finished, and the BSS_R up to application sends " UPLINK_REQUEST_ACK " message;
After BSS_R receives " UPLINK_REQUEST_ACK " message, issue MSC_R with " TALKER INDICATION " message constructing " UPLINK_REQ_CONF " message among the SABM; After MSC_R receives " UPLINK_REQ_CONF " message, from message, take out MobileIdentity, to VLR (Visitor Location Register, Visited Location Registor) inquires about this user's Additional Info, and issue all BSC and Anchor MSC, be the speaker and discern use;
MSC_R sends ASS_REQ (ASSIGNMENT REQUEST, assignment request) message to BSS_R; BSS_R sends ASSIGNMENT_CMD (ASSIGNMENT COMMAND, Assignment Command) message to MS; MS returns ASSIGNMENT_COMP (ASSIGNMENT COMPLETE, assignment is finished) message; BSS_R returns ASS_COMP (ASSIGNMENTCOMPLETE, assignment is finished) message to MSC_R.
From last surface analysis as can be seen, as seen in the existing description of prior art 3GPP agreement, under the flow process of service-user applicating special uplink in Relay MSC, Relay MSC want earlier earlier according to Anchor MSC address for this user set up one from Relay MSC to the proprietary speech channel of the interoffice of Anchor MSC.This can increase the time of setting up the interoffice carrying, the performance that the influence application is up, and also this mode can be occupied an interoffice traffic resource.If when the interoffice traffic resource was not enough, applicating special uplink can be failed, that is to say that application is up whether can be successfully also relevant with the load of current interoffice speech channel.
Summary of the invention
In view of this, the invention provides a kind of method and system of service user applicating special uplink, guarantee that service-user is in Relay MSC during applicating special uplink, with the shared speech channel of other users in the Relay MSC.
In order to realize the foregoing invention purpose, one embodiment of the present of invention provide a kind of method of service user applicating special uplink, comprising:
The make progress Tandem Mobile Switching Center in line space spare time of A, service-user is initiated upstream request, Tandem Mobile Switching Center by and Controlling MSC between speech channel send upstream request message to Controlling MSC;
B, Controlling MSC are received upstream request message, when permission is up, send the upstream request acknowledge message to Tandem Mobile Switching Center;
C, Tandem Mobile Switching Center are received the upstream request acknowledge message, give service-user assignment dedicated channel, and the voice of the service-user on the dedicated channel are sent to Controlling MSC by speech channel.
One embodiment of the present of invention also provide a kind of system of service user applicating special uplink, comprise BSS unit, a MSC unit and the 2nd MSC unit, and a MSC unit is connected by speech channel with the 2nd MSC unit, and key is:
The BSS unit be used for and the MSC unit between wireless transmission and controlled function;
When the one MSC unit is used for service-user initiation upstream request, send upstream request message by speech channel to the 2nd MSC unit, when the upstream request acknowledge message of receiving that the 2nd MSC unit returns, notice BSS unit is a service-user assignment dedicated channel, and the voice of the service-user on the dedicated channel are sent to the 2nd MSC unit by speech channel;
The 2nd MSC unit is used for after receiving the upstream request message that a MSC unit sends, and when permission is up, sends the upstream request acknowledge message to a MSC unit, receives the voice of service-user in the speech channel, and broadcasting.
Compare prior art, the method and system of the service user applicating special uplink that one embodiment of the present of invention provide, make under the situation of the networking mode that does not change existing system, when service-user in Relay MSC during applicating special uplink, apply for the shared speech channel of other users in up user and the Relay MSC, improved the performance of service user applicating special uplink in the Relay MSC, saved the interoffice traffic resource, and improved and applied for up success rate.
Description of drawings
Fig. 1 is the signaling process figure of service user applicating special uplink in the prior art;
Fig. 2 is the method flow schematic diagram of the embodiment of the invention;
Fig. 3 is the signaling process figure of first embodiment of the invention;
Fig. 4 is a system embodiment schematic diagram of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples, and with reference to accompanying drawing, the present invention is described in more detail.
According to the embodiment of the invention, when group call region surpasses the coverage of a MSC, in this group calling a plurality of MSC can be arranged, controlling MSC wherein is Anchor MSC, other MSC are relay MSC (RelayMSC), for the ease of illustrating thought of the present invention, present embodiment is an example there to be a RelayMSC in the group call region.
Fig. 2 is that as shown, this method may further comprise the steps according to the method flow schematic diagram of the method embodiment of a kind of service user applicating special uplink of the present invention:
Step 201: service-user is initiated upstream request in the MSC_R of up free time, MSC_R by and MSC_A between speech channel send upstream request message to MSC_A;
Service-user is initiated upstream request by the BSS_R at place at the MSC_R of up free time.
BSS_R returns acknowledge message to service-user, and broadcast upstream is busy; After this service-user is received acknowledge message, send the message of carrying the service-user mobile logo to the BSS_R at place; BSS_R receives the message of carrying the service-user mobile logo, parses the service-user mobile logo, sends the link setup acknowledge message to service-user.
After step 202:MSC_A receives upstream request message, when permission is up, send the upstream request acknowledge message to MSC_R; The MSC_A broadcast upstream is busy.
Step 203:MSC_R receives after the upstream request acknowledge message, gives service-user assignment dedicated channel, and the voice of the service-user on the dedicated channel are sent to MSC_A by speech channel.
MSC_R receives after the upstream request acknowledge message, sends the up channel request to BSS_R and admits message;
After BSS_R receives that message is admitted in the up channel request, return the upstream request acknowledge message of carrying the service-user mobile logo; MSC_R receives the upstream request acknowledge message, parses the service-user mobile logo, to VLR (Visited Location Registor) inquiry business user's additional information, with broadcast additional information; MSC_R notice BSS_R sends the dedicated channel assignment message to service-user; Service-user inserts dedicated channel according to message; Service-user returns the dedicated channel assignment to MSC_R and finishes message by BSS_R.
For ease of the present invention is further understood, now in conjunction with specific embodiments the present invention is described in detail.
Fig. 3 is the signaling process figure according to the method embodiment of a kind of service user applicating special uplink of the present invention.As shown, service-user is in the sub-district that MSC_R (Relay MSC) covers, after VGCS sets up successfully, if the current up free time:
Step 301: base station system BSS_R (Base Station System) broadcast upstream free time (UPLINK_FREE) message in the sub-district, the present up state free time of service-user in the notifying cell;
Step 302: service-user need be in MSC_R during applicating special uplink, sends up access (UPLINK_ACCESS) message, applicating special uplink by travelling carriage (MobileStation is called for short " MS ") to BSS_R;
Step 303:BSS_R sends UPLINK_REQUEST message to MSC_R, and notice MSC_R has service user applicating up;
Step 304:BSS_R sends to travelling carriage and allows (VGCS_UPLINK_GRANT) message, expression to allow application up;
Busy (UPLINK_BUSY) message of step 305:BSS_R broadcast upstream in the sub-district, the present uplink state of other service-users is for busy in the notifying cell;
Step 306: after travelling carriage is received permission (VGCS_UPLINK_GRANT) message, to the BSS_R transmission Asynchronous Balanced Mode (Set Asynchronous Balanced Mode is set, SABM) frame, layer three message (L3msg) that wherein comprise are speaker's sign (TALKER_INDICATION) message, comprise the Mobile Identity (mobile logo) of this travelling carriage in speaker's sign (TALKER_INDICATION) message;
After step 307:BSS_R receives the SABM frame of travelling carriage, directly return link setup and confirm that (Unnumbered Acknowledge, UA) message comprise identical content to travelling carriage;
Step 308:MSC_R by and MSC_A between speech channel send upstream request message (PROCESS_GROUP_CALL_SIGNAL (uplink_request)) to MSC_A, notice MSC_A application is up;
Step 309:MSC_A by and MSC_R between speech channel send upstream request acknowledge message (FORWARD_GROUP_CALL_SIGNAL (uplink_request_ack)) to MSC_R, agree upstream request;
Step 310:MSC_R admits message (UPLINK_REQUEST_ACK) message for the up BSS_R transmission upstream request of application, and expression allows application up;
Step 311:BSS_R sends upstream request acknowledgement message (UPLINK_REQUEST_CONFIRMATION) message and gives MSC_R, comprises the L3msg that travelling carriage reports in the message, comprises the Mobile Identity (mobile logo) of this travelling carriage;
After step 312:MSC_R obtains applying for up user's sign, obtain the additional information (Additionalinfo) that this user contracts to visit VLR_R (VisitorLocation Register, Visited Location Registor);
Step 313:MSC_R sends additional information notice (PROCESS_GROUP_CALL_SIGNAL (add_info)) message and gives MSC_A, is the speaker and discerns use;
Step 314:MSC_R broadcasts group calling additional messages (VGCS_ADD_INFO);
Step 315:MSC_R is to up BSS_R transmitting channel assignment request (ASSIGNMENT_REQUEST) message of application;
Step 316:BSS_R is to MS transmitting channel assignment message (ASSIGNMENT_COMMAND);
Step 317:MS returns assignment and finishes message (ASSIGNMENTCOMPLETE) after inserting dedicated channel;
Step 318:BSS_R returns assignment to MSC_R and finishes message (ASSIGNMENTCOMPLETE).
Then, MSC_R with the voice of the service-user on this dedicated channel by and MSC_A between speech channel send to MSC_A.
Accordingly, the present invention also provides a kind of system of service user applicating special uplink, consults the system embodiment schematic diagram according to a kind of service user applicating special uplink of the present invention shown in Figure 4, and this system comprises:
When the one MSC unit 402 is used for service-user initiation upstream request, send upstream request message by speech channel to the 2nd MSC unit 403, when the upstream request acknowledge message of receiving that the 2nd MSC unit 403 returns, notice BSS unit 401 is a service-user assignment dedicated channel, and the voice of the service-user on the dedicated channel are sent to the 2nd MSC unit 403 by speech channel;
402 further calling party location register VLR unit 4021, the one MSC unit; VLR unit 4021 also can be independent of a MSC unit 402 individualisms;
The 2nd MSC unit 403 is used for when permission is up, sending the upstream request acknowledge message to a MSC unit 402 after receiving the upstream request message that a MSC unit 402 sends, and receives the voice of service-user in the speech channel, and broadcasting.
In sum, the invention enables under the situation of the networking mode that does not change existing system, when service-user during applicating special uplink, has improved the performance of service user applicating special uplink in the Relay MSC in Relay MSC, saved the interoffice traffic resource, and improved and applied for up success rate
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of method of service user applicating special uplink is characterized in that, this method comprises:
The make progress Tandem Mobile Switching Center in line space spare time of A, service-user is initiated upstream request, described Tandem Mobile Switching Center by and Controlling MSC between speech channel send upstream request message to described Controlling MSC;
B, described Controlling MSC are received described upstream request message, when permission is up, send the upstream request acknowledge message to described Tandem Mobile Switching Center;
C, described Tandem Mobile Switching Center are received described upstream request acknowledge message, give described service-user assignment dedicated channel, and the voice of the described service-user on the described dedicated channel are sent to described Controlling MSC by described speech channel.
2, method according to claim 1 is characterized in that, the make progress Tandem Mobile Switching Center in line space spare time of service-user is initiated upstream request in the steps A, further comprises:
The make progress Tandem Mobile Switching Center in line space spare time of the base station system of service-user by the place is initiated upstream request.
3, method according to claim 2 is characterized in that, after the described steps A, further comprises:
A1, described base station system are returned permission message to described service-user, and broadcast upstream is busy;
After A2, described service-user are received described permission message, send the message of carrying described service-user mobile logo to described base station system;
A3, described base station system are received described message of carrying described service-user mobile logo, parse described service-user mobile logo, send the link setup acknowledge message to described service-user.
4, method according to claim 3 is characterized in that, Tandem Mobile Switching Center described in the described step C is received described upstream request acknowledge message, further comprises:
C1, described Tandem Mobile Switching Center are received described upstream request acknowledge message, send upstream request to described base station system and admit message;
After C2, described base station system receive that described upstream request is admitted message, return the upstream request acknowledgement message that carries described service-user mobile logo;
C3, described Tandem Mobile Switching Center are received described upstream request acknowledgement message, parse described service-user mobile logo, inquire about the additional information of described service-user to the visit location register, and broadcast described additional information.
5, method according to claim 4 is characterized in that, gives described service-user assignment dedicated channel among the described step C, further comprises:
It is described service-user transmitting channel assignment message that C4, described Tandem Mobile Switching Center are notified described base station system;
C5, described service-user insert dedicated channel according to described channel assignment message.
C6, described service-user return assignment to described Tandem Mobile Switching Center and finish message by described base station system.
6, according to the described method of claim 1 to 5, it is characterized in that, behind the described step B, further comprise:
Described Controlling MSC broadcast upstream is busy.
7, a kind of system of service user applicating special uplink comprises BSS unit, a MSC unit and the 2nd MSC unit, and a MSC unit is connected by speech channel with the 2nd MSC unit, it is characterized in that:
The BSS unit be used for and a MSC unit between wireless transmission and controlled function;
When the one MSC unit is used for service-user initiation upstream request, send upstream request message by described speech channel to the 2nd MSC unit, when the upstream request acknowledge message of receiving that the 2nd MSC unit returns, notice BSS unit is described service-user assignment dedicated channel, and the voice of the described service-user on the described dedicated channel are sent to the 2nd MSC unit by described speech channel;
The 2nd MSC unit is used for after receiving the upstream request message that a MSC unit sends, and when permission is up, sends the upstream request acknowledge message to a MSC unit, receives the voice of service-user in the described speech channel, and broadcasting.
8, system as claimed in claim 7 is characterized in that, described system also comprises the VLR unit, is used to store application uplink service user's additional information, and carries out dynamic maintenance management.
9, system as claimed in claim 8 is characterized in that, described BSS unit comprises BSC unit and BTS unit, and the BSC unit is used for being responsible for the interface management of BSS unit, bears the RRM task; The BTS unit is used for by wireless transmission between air interface and the service-user and controlled function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100646692A CN101001424B (en) | 2006-12-28 | 2006-12-28 | Method and system of service user application for special uplink |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100646692A CN101001424B (en) | 2006-12-28 | 2006-12-28 | Method and system of service user application for special uplink |
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| CN101001424A true CN101001424A (en) | 2007-07-18 |
| CN101001424B CN101001424B (en) | 2010-09-08 |
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| CN2006100646692A Expired - Fee Related CN101001424B (en) | 2006-12-28 | 2006-12-28 | Method and system of service user application for special uplink |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100396125C (en) * | 2005-11-16 | 2008-06-18 | 华为技术有限公司 | Method for realizing group-calling service |
| CN100438657C (en) * | 2006-07-10 | 2008-11-26 | 华为技术有限公司 | Protection method and system after service user engrossing group-calling uplink channel |
| CN100417250C (en) * | 2006-07-10 | 2008-09-03 | 华为技术有限公司 | Method and system for service user to join in group-calling |
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