CN103428636A - Group calling establishing method - Google Patents
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- CN103428636A CN103428636A CN2012101549089A CN201210154908A CN103428636A CN 103428636 A CN103428636 A CN 103428636A CN 2012101549089 A CN2012101549089 A CN 2012101549089A CN 201210154908 A CN201210154908 A CN 201210154908A CN 103428636 A CN103428636 A CN 103428636A
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Abstract
The invention discloses a group calling establishing method which is used for reducing signal interaction in a group calling establishing process, and therefore reducing time delay in establishing group calling and improving the efficiency in establishing the grouping calling. The group calling establishing method includes the following steps that a TMSE receives the request for establishing group calling from calling UE; the TMSE converts the request for establishing the group calling into an SIP Invite message, wherein an instruction for establishing the group calling is contained in the SIP Invite message. The TMSE sends the SIP Invite message to a dispatching server.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of group-calling set-up method.
Background technology
The formal externally issue " Digital Clustering mobile communication system system " of Ministry of Information Industry's on December 28th, 2000, and recommend cluster to use land trunked radio (TETRA, Terrestrial Trunked Radio) and two kinds of systems of integrated digital enhanced network (iDEN, Integrated Digital Enhanced Networks).Domestic independent researches in several years subsequently based on code division multiple access (CDMA, Code Division Multiple Access) based on open cluster architecture of technology (GOTA, Global Open Trunking Architecture) and the GT800 based on global mobile communication system technology emerge.
Along with the develop rapidly of mobile Internet and the TD-LTE technology universal, the mobile communication broad band demand is more and more obvious, group system is also to future developments such as IPization system architecture, data are broadband.The end of the year 2010, the CCSA official approval " research report of the trunked communication system based on TD-LTE ", three kinds of implementations based on TD-LTE wideband multimedia cluster have been proposed in this report.
In group system, most typical business is group-calling service, and the user can at a time initiate the calling for a certain particular demographic, and this is called out and adopts semiduplex mode.In the wideband multimedia system, cluster not only can, for the user provides voice group call service, can also provide the business such as visual group calling.The group calling characteristics are only to allow at any one time a people to be talked, speaker obtains uplink resource, other users are in the state of answering, DSCH Downlink Shared Channel of each cell allocation that system relates to for this group, this shared channel of real-time listening per family for this group in community.Therefore, in the cluster multi call process, arbitrary moment only has a up link and a shared down link, than public network, has utilized more efficiently frequency spectrum resource.It is the operations such as right of speech allows to apply for, discharges, seizes, queuing that semi-duplex group is called out another characteristics, and the management process of right of speech and User Priority closely related.In addition, the group calling setup delay is one of key index of trunked call, and any one group system all needs to meet the system performance of access fast.Here define the group calling setup delay and press PTT (PUSH TO TALK, PTT) key to there being a called subscriber to hear the time of caller voice for the calling party.
The TETRA system is European standard, and clustering functionality is the most powerful, and system equipment and subscriber equipment are expensive, although the air interface external disclosure, secret but other interfaces of internal system are, between each equipment vendor, interoperability is not high.And the iDEN system is exclusive standard, system standard is not externally announced.
Domestic narrow-band digital group system, the for example GT800 based on GSM and the GOTA system based on CDMA, because its base station need to be unified to control by base station controller, can't directly communicate with core net, cause the Signalling exchange in group call establishment process to increase, increased calling establishment time delay.
In three kinds of TD-LTE wideband multimedia group schemes that CCSA proposes, the first scheme modifying air interface strengthen group calling performance purpose to reach, first scheme is that Push to talk over Cellular (PTT Over Cellular is used in suggestion, Poc) business is carried out enhancement method and is realized the broadband cluster, the third scheme is on the basis of using the Poc scheme, use multimedia broadcast/multicast service (Multimedia Broadcast/Multicast Service, MBMS) joint transmission mode to strengthen to reach the group calling performance.All there are some drawbacks in these three kinds of schemes at the group calling performance scheme, although the first scheme has been optimized air interface, but, owing to adopting TD-LTE core net public network framework, in group call establishment process, each equipment room of core net need to be repeatedly mutual, is unfavorable for the shortening of group calling setup delay; First scheme and the equal Application standard Poc of the third scheme business are carried out enhancement method, because limited space is optimized in the restriction of Poc business self flow process.Although the third scheme has adopted MBMS joint transmission scheme optimization air interface, to overall plan optimization not obvious.
Summary of the invention
The embodiment of the present invention provides a kind of group-calling set-up method, in order to reduce Signalling exchange in the group calling Establishing process, and then reduces the group calling setup delay, improves group calling and sets up efficiency.
A kind of group-calling set-up method that the embodiment of the present invention provides comprises:
Cluster mobility session management entity TMSE, receive from the group calling of calling subscriber equipment UE and set up request;
TMSE is converted to SIP (Session Initiation Protocol) by this group calling request of setting up and invites Invite message, wherein carries group calling and sets up indication, and this SIP Invite message is sent to dispatch server Server.
A kind of group-calling set-up method that the embodiment of the present invention provides comprises:
TMSE under called subscriber equipment, the invitation Invite message that receiving scheduling server S erver sends, comprising the sign of the calling subscriber equipment of initiating group calling foundation request, and the called subscriber equipment sign;
Described TMSE, if determine in group do not have subscriber equipment to be served by this TMSE according to this Invite message, respond the non-existent Indication message of user to scheduling Server; Otherwise, send paging request to eNB.
A kind of group-calling set-up method that the embodiment of the present invention provides comprises:
Dispatch server Server, receive the SIP (Session Initiation Protocol) invitation Invite message that cluster mobility session management entity TMSE sends, and therefrom obtains from calling subscriber's group calling and set up indication;
Dispatch server Server is when the calling subscriber being authorized when successful, and this group calling of notice TMSE is set up group calling corresponding to indication and carried out.
The embodiment of the present invention, by cluster mobility session management entity TMSE, receive from the group calling of calling subscriber equipment UE and set up request; TMSE is converted to SIP (Session Initiation Protocol) by this group calling request of setting up and invites Invite message, wherein carry group calling and set up indication, and this SIP Invite message is sent to dispatch server Server, thereby reduce Signalling exchange in the group calling Establishing process, and then reduce the group calling setup delay, improve group calling and set up efficiency.
The accompanying drawing explanation
The network architecture schematic diagram of the TD-LTE wideband multimedia cluster that Fig. 1 provides for the embodiment of the present invention;
The overall flow schematic diagram of the cluster user start-up logging that Fig. 2 provides for the embodiment of the present invention;
The overall flow schematic diagram that Fig. 3 sets up for the group calling that the cluster user that the embodiment of the present invention provides is initiated;
The group calling Establishing process schematic diagram of the cluster mobility session management entity side under the calling subscriber that Fig. 4 provides for the embodiment of the present invention;
The group calling Establishing process schematic diagram of the cluster mobility session management entity side under the called subscriber that Fig. 5 provides for the embodiment of the present invention;
The group calling Establishing process schematic diagram of the dispatch server side that Fig. 6 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of group-calling set-up method, in order to reduce Signalling exchange in the group calling Establishing process, and then reduces the group calling setup delay, improves group calling and sets up efficiency.
The network architecture of the TD-LTE wideband multimedia cluster that the embodiment of the present invention provides, be illustrated in fig. 1 shown below, this system comprises subscriber equipment (UE), evolved base station (eNB), cluster mobility session management entity (TMSE, Trunking Mobility Session Entity), home signature user server (Home Subscriber Server, HSS), dispatch server (Server), dispatching desk and several parts of Operation and Maintenance platform.
Under this system architecture, core net adopts centralization thought, and the unification of equipment of the core network function is realized by TMSE, and TMSE directly controls and has all TD-LTE base station equipments under its command, to reduce the Signalling exchange in group call establishment process.
Below provide the function introduction of each network entity:
Subscriber equipment, refer to and the equipment of cluster user direct control provide group service, data service etc. to the user.According to the form that is connected to system, be divided into two kinds of wireless user equipment and wire user equipment.According to function, the wireless dispatching subscriber equipment that wireless user equipment is divided into again common wireless user equipment and has scheduling feature.According to external shape, wireless user equipment can be divided into hand-held consumer devices, Vehicle mounted station etc. again, and wherein hand-held consumer devices is the portable set that cluster user is commonly used, for the user in mobile environment provides miscellaneous service; Vehicle mounted station is mounted in the subscriber equipment on the vehicles such as car, ship.
ENB in native system, at TD-LTE system base-station (Evolved NodeB, eNodeB) increased on basis and realized the needed function of group service, having comprised: transmitted pellucidly signaling for group service between wireless user equipment and TMSE, pass to wireless user equipment etc. for the downlink data of wireless user equipment and group service distributing radio resource, the group service that will receive from TMSE.
TMSE is the main network element of TD-LTE group system core net part, at first TMSE has (the Mobile Management Entity of mobile management entity in the LTE system, MME) function, realize the functions such as mobile management, access control, evolved packet system (Evolved Packet System, EPS) session management, secondly, TMSE also has (the Packet Data Network of similar Packet Data Network in the LTE system, PDN) gateway (PDN Gateway, PGW) function, be responsible for the address to user equipment allocation IP, carry out service quality (Quality of Service, QoS) control, interface with outer data network etc. is provided, importantly, TMSE also has the function that group service is relevant, comprise the interpretative function of realizing the Session Initiation Protocol between trunked call signaling and TMSE and dispatch server between subscriber equipment and TMSE, the media processing function of trunked call, such as descending media data is copied and is distributed to different base station etc.
In addition, TMSE also needs to possess the functions such as billing data acquisition that group service is relevant.
Preferably, MME, SGW and PGW function in an integrated LTE network of TMSE entity, and, by inner mode, realize the simplification of flow process in existing LTE network, to shorten the needed time of existing procedure.
When network size is very large, by the mode of many TMSE networking, realize extensively covering.
HSS, be the database for storing user subscription information, also has AUC's function.For supporting group service, need on existing HSS function, increase relevant function, such as: the management of group subscription data etc.
Dispatch server, mainly complete the dispatching services logic controls such as cluster multi call, individual calling, urgent call, right of speech management, group service rights management, and can realize the functions (for many TMSE scene) such as medium surface data Replica, forwarding.
Optionally, when needs and external network carry out the language call intercommunication, dispatch server possesses audio access gateway or Tandem Gateway function.
Dispatch server can be realized the management to the cluster user data.
Dispatching desk mainly provides the human-machine operation visual interface, presentation information and triggering dispatching services, and can when urgent call, produce alarm.
The Operation and Maintenance platform, support local operation maintenance platform and centralized network management, and concrete function comprises the safety function that the Operation and Maintenance user right is managed; The configuration modification function of the office data that device network is planned; Facilitate O&M and developer to locate the signaling tracing function that calling procedure is analyzed; Equipment is carried out to unified fault management, alarm collection, demonstration, inquiry, fault detect, failure diagnosis and troubleshooting instrument are provided.In addition, for everyday devices attended operation management function, and the network element software management function of system software upgrading, provide each network element is carried out to traffic and signaling measurement, qos measurement, availability measurement, throughput measurement and handoff functionality measurement, for system performance analysis provides according to and grasp at any time network operation situation.The Operation Log that the Operation and Maintenance platform also provides customer access equipment to be operated, access security daily record, system running log, network element event notice and alarm log, facilitate positioning problems.Also need the supporting business open platform for HSS equipment.
The Operation and Maintenance platform can with system in the network element such as base station, TMSE, HSS, dispatching desk communicate, realize the transmission of operational maintenance command, and the reception to the response message of operational order from each network element.Owing to adopting the IP networking technology, only shown the Operation and Maintenance platform in Fig. 1, simplify the annexation shown with each network element.
Problem for existing system and technology existence, the embodiment of the present invention provides the group-calling set-up method of the TD-LTE broadband multimedia cluster system framework based on shown in Fig. 1, the method can more preferably shorten the group calling setup delay, and can take full advantage of the TD-LTE broadband character and provide more more preferably business experience of high bandwidth for cluster user.In order to achieve the above object, the technical scheme that the embodiment of the present invention provides comprises:
After the start of subscriber equipment in TD-LTE wideband multimedia digital cluster system, this subscriber equipment carries out network attachment and sets up default bearing, is triggered to the dispatching services registration process of dispatch server by network equipment TMSE after adhering to successfully; In this process, complete the authentication of cluster user and the register and authentication of dispatching services;
When the user presses the PTT key and initiates the calling for certain designated group, if now calling subscriber equipment is in the IDLE state, calling subscriber equipment first carries out the RRC connection, enters connected state, then by NAS message, sends group calling and sets up request to network equipment TMSE;
After TMSE receives the group calling request of setting up, judge whether authentication success of this user, if success send and invite (Invite) message to dispatch server; If failure refuse this time group calling request of this subscriber equipment;
After dispatch server is received Invite message, judge whether this calling subscriber equipment has registered dispatching services, and judge whether this calling subscriber equipment has the right to initiate this group calling, if, respond 181 message of Invite to TMSE, notice TMSE sets up unidirectional service bearer for this calling subscriber equipment; If this calling subscriber equipment registration dispatching services failure, respond the errored response 480 of Invite to TMSE, refuse this time group calling request of this calling subscriber equipment;
Dispatch server send 181 message to TMSE after, trigger and to exhale eventually the TMSE of Invite message to all connections, the group calling that notice is initiated by a calling subscriber equipment, need to set up DSCH Downlink Shared Channel for it;
Allly receive that the TMSE that exhales Invite message this end all judge that according to the group of carrying in this message sign this group identifies in corresponding group and whether has subscriber equipment to be served by this TMSE, if do not have, responds 404 message to dispatch server; If have, in triggering group, the paging to subscriber equipment in this group is initiated in community, subscriber equipment place;
No matter organize interior subscriber equipment and now may still connect (CONNECT) state in idle (IDLE) state, can this paging of normal response, and add in group session;
As long as a user device responsive has been arranged this paging, network sends group calling and is successfully established message, and carries right of speech and license to group calling promoter, i.e. calling subscriber equipment;
The group calling promoter loquiturs after receiving the right of speech mandate, and this time group call establishment process completes.
Wherein, above-mentioned cluster user start-up logging flow process, referring to Fig. 2, comprises step:
A1.UE sends Attach Request message and cluster network selects indication to eNB, this Attach Request message comprises: international mobile subscriber identifier (International Mobile SubscriberIdentifier, IMSI) or old global unique temporary identity (Globally Unique Temporary Identity, GUTI), tracking area identification (the Tracking Area Identity of effective last visit, TAI), UE core network ability, the discontinuous reception of UE appointment (DRX) parameter, the PDN type, protocol configuration option (PCO), Encryption Options transmission mark, type of attachment, KSIASME(Key Set Identifier Access Security Management Entity), the NAS sequence number, NAS-MAC(Non-Access Stratum-Media Access Control) and additional GUTI.
Old global unique temporary identity (GUTI) and cluster that A2.eNB controls in (Radio Resource Control, RRC) message parameter according to the Radio Resource that carries UE and adhere to request select network to indicate, and obtain the sign of new TMSE.If can not get the sign of new TMSE, the TMSE sign that eNB is new according to policy selection such as loads.
Then, eNB is transmitted to new TMSE together by the TAI of Attach Request message and community, UE place and Evolved UTRAN network (E-UTRAN) Cell Global Identity (E-UTRAN Cell Global Identifier, ECGI).
If A3. UE identifies oneself by GUTI, and the TMSE(under UE is the TMSE of UE service) because attachment removal changes, new TMSE is used the address that obtains old TMSE from the GUTI of UE, and send the identify label request message to old TMSE, the IMSI of request UE, old TMSE returns to identification response and gives new TMSE, comprising the IMSI of UE and untapped EPS Ciphering Key and KSIASME, KASME, gives new TMSE; If old TMSE can not identify the integrity checking failure (identical with the protection algorithm integrallty of standard in existing 3GPP agreement) of UE or Attach Request message, old TMSE returns to suitable wrong reason (" User authentication failed ") to new TMSE.
If A4. in new, old TMSE, all can not identify UE, new TMSE send identification request to UE with request IMSI.UE is used the identification response message that comprises IMSI to notify to network.
If A5. in network, there is no the UE context; and the Attach Request message in steps A 1 does not have integrity protection or encryption; if perhaps integrity checking failure, the safe process of establishing of the authentication of this step and NAS (the 3GPP protocol procedures that these two processes are all standards) forces to carry out.Otherwise this step can not carried out.
If the NAS security algorithm changes, this step is only carried out the safe process of establishing of NAS.
After this step, all NAS message will be subject to the NAS safety function protection of TMSE indication.
If A6. in new TMSE, there is the bearer context activated, for example, do not have prior attachment removal just again to adhere at same TMSE, delete old bearer context.If TMSE changes after last attachment removal, or adhere to for the first time, or ME sign (ME Identity) changes, or IMSI or GUTI that UE provides do not have corresponding bearer context information in TMSE, TMSE sends position updating request to HSS, wherein, this position updating request comprises TMSE sign (TMSEIdentity), IMSI, ME Identity, TMSE ability (TMSE capabilities) and updating type (Update type).Wherein, the TMSE ability has been indicated the access limitation function status that this TMSE supports; It is an attaching process that updating type has been indicated this.
A7.HSS sends the position deletion request message to old TMSE, and old TMSE deletes mobile management and bearer context.If old TMSE has the bearer context of activation to exist, old TMSE deleting bearing resource.
A8. old TMSE deletes response message to the HSS home position.
A9.HSS sends position and upgrades response message to new TMSE, to reply the renewal location message.This position is upgraded in response message and is included IMSI and subscription data, and subscription data comprises the signing contextual information of one or more PDN.The Aggregate Maximum Bit Rate (APN-AMBR) that comprises signing qos parameter and signing APN in each signing context.New TMSE checking UE exists in new tracking area (TA).If due to territorial restrictions or access limitation, do not allow UE to be attached in this TA, the TMSE refusal adheres to request.If check successfully, new TMSE creates a context to UE.If to be signing institute unallowed or HSS has refused the renewal position for the APN that UE provides (Access Point Name, APN), new TMSE refusal Attach Request message.New TMSE creates default bearing for the user, and is UE distributing IP and cluster group IP address;
A10. new TMSE creates default bearing for the user, and be UE distributing IP address and cluster group IP address, send initial context and set up request (adhere to and accept message (AttachAccept)) to eNB, wherein carry APN, GUTI, PDN type (PDN Type), PDN address (PDNAddress), TAI list (TAI List), EPS bearing identification (EPS Bearer Identity), session management request (Session Management Request), protocol configuration option (Protocol Configuration Options), KSIASME, NAS serial number (NAS sequence number) and NAS-MAC, and need to carry cluster group sign and group IP address.
If new TMSE distributes a new GUTI, GUTI is also contained in this message.It is inner that this message is included in cluster S1 interface (S1_T) control message initial context foundation request (Initial Context Setup Request), and this S1 control message also comprises that Aggregate Maximum Bit Rate (UE-AMBR), the EPS of Access Layer (AS) safe context, switching restriction list, carrying QOS parameter and the UE of UE carry ID and SGW user's face TEID and address.
A11.eNB sends RRC and connects reconfiguration message to UE, wherein comprises RB ID and the Attach Accept message of EPS system.
A12.UE sends the RRC connection and has reshuffled message to eNB.
A13.eNB sends initial context and sets up response (Initial Context Response) message to new TMSE.The TEID that comprises eNB in this Initial Context Response message and the ，Gai address, address of eNB are for the downlink business of cluster S1 interface user plane (S1_Tu) reference point.
A14.UE sends (Direct Transfer) message that direct transfers to eNB, this message comprises has adhered to (Attach Complete) message, in this Attach Complete message, comprises: EPS Bearer Identity, NAS sequence number and NAS-MAC.By Attach Complete message, UE brings into use the NAS security algorithm of new TMSE indication.
A15.eNodeB is used up NAS message transfer to forward Attach Complete message to new TMSE.UE, after adhering in accepting message and obtaining the PDN address information, just can send the upstream data bag to eNodeB, and eNodeB seals upstream data to be contained in GRPS tunnel protocol (GTP-U) tunnel and to be uploaded to new TMSE.If the PDN type (Ipv4 and Ipv6) of UE request double address, but network only allows single-address PDN type (Ipv4 or Ipv6), and network only supports the carrying of single-address type, UE can ask the PDN that activates another address style under identical APN to connect again.
A16. all forming that new TMSE is this UE place built cluster group downlink bearing link.For each group, new TMSE sets up new TMSE to the unidirectional GTP-U tunnel between eNB, the downlink data for carrying from new TMSE to eNB.
A17. new TMSE is sent in the net Indication message to scheduling Server, and this message is carried by SIP registration request (SIP REGISTER) message.Carry the information such as user ID, affiliated group of information and TMSE address in this message.
A18. dispatch Server and receive that this,, after the net Indication message, carries out the dispatching services authentication to this UE, after the authentication success, respond 200OK message to new TMSE.If failed authentication, respond the dispatching services registration failure that the errored response code is indicated this UE of TMSE, new TMSE needs the registration failure information of recording dispatching business, when UE initiation next time group-calling service, is refused.
Referring to Fig. 3, the group calling Establishing process that the cluster user that the embodiment of the present invention provides is initiated comprises step:
If 1, UE1 does not have Radio Resource to control (Radio Resource Control, RRC) connection, first set up RRC and connect.Then, UE1 initiates group calling and sets up request to network, and this group calling is set up request and transmitted by Non-Access Stratum (Non Access Stratum, NAS) Packet Data Unit (Packet Data Unit, PDU).
ENB 1 receives after request is set up in this group calling and passes through TMSE1;
2, after TMSE1 receives that request is set up in this group calling, this group calling request of setting up is converted to session initiation protocol (Session Initiation Protocol, SIP) invite (Invite) message, and send to the scheduling Server, in this message, carry: calling number (initiating group calling square mark or number), and called number (needing group identification or the number called out).
If mistake appears in 3 scheduling Server inside, or determines that this UE1 haves no right to initiate group calling, is not this group user etc. such as calling party UE1, respond errored response code 408 to TMSE1, when TMSE1 receives errored response code 408, discharge RRC by timer and connect;
4, after scheduling Server authorizes successfully to calling subscriber UE1,181 Temporary Responses that SIP Invite message is corresponding send to TMSE1, and notice TMSE1 should call out well afoot;
If 5 UE1 are in Idle state, TMSE1 sets up up link for the calling subscriber, sends initial context and sets up request to eNB1;
6, at first eNB1 should activate safety, then the RRC that transmission is eated dishes without rice or wine connects the reprovision request to subscriber equipment;
7, subscriber equipment carries out the processing of RRC connection reprovision after receiving, replys RRC connection reprovision after completing and completes to eNB1;
8, eNB1 sends initial context and sets up response to TMSE1;
If 9 UE are in connected state, TMSE1 is for after the calling subscriber sets up default bearing, the initiation dedicated bearing is set up, send E-UTRAN Radio Access Bearer (E-RAB) and set up request, after eNB1 receives that E-RAB sets up request, initiate the RRC connection according to this request and reshuffle, for the calling subscriber sets up dedicated bearing;
10, eNB1 sends E-RAB and sets up response to TMSE1 after the RRC connection has been reshuffled.
11, after (can carrying out with step4) scheduling simultaneously Server receiving SIP Invite message, according to the information of carrying in this SIP Invite message, the inquiry local data base, obtain the called UE (UE2 in Fig. 4 of group calling ... UEn) TMSE2 in all TMSE(Fig. 4 under ... TMSEn) address;
Scheduling Server sends respectively Invite message to the TMSE under each called UE, in this Invite message, carry: the sign of calling subscriber UE1 (initiating sign or number that the user of request is set up in group calling), and the sign of called UE (sign or the number that need each UE of calling in group);
After under each called UE, TMSE receives the Invite message of scheduling Server transmission, if determine in group corresponding to this group sign do not have subscriber equipment to be served by this TMSE according to this Invite message, respond the non-existent Indication message of 404 user to scheduling Server; Otherwise, send paging request to eNB2, with the paging called UE;
12, the TMSE2 for example of the TMSE(under the called UE of group calling), send group calling context (for transmitting the bearer context of group calling downlink data) for called group of user and set up request message to eNB2, purpose is that request eNB is that cluster user is set up vertical context;
13, the group calling context between eNB2 foundation and all downlink users, respond the group calling context and set up response to TMSE2, and purpose is that eNB response TMSE is the vertical contextual result of cluster user establishment;
14, after TMSE2 receives that response message set up in this group calling context, respond SIP 200OK to scheduling Server, this message is carried the contents such as success response code;
15, scheduling Server respond be used to indicate receive SIP 200OK confirmation (ACK) message to TMSE2;
16, after scheduling Server receives the off-hook 200OK message of the called UE that any one TMSE of TMSE2 to TMSEn forwards, send group calling by 200OK message and set up response message to TMSE1, this message is carried the right of speech mandate simultaneously;
17, TMSE1 sends group calling to UE1 and sets up response, wherein carries the right of speech authorization messages, is used to UE1 to authorize right of speech; ENB1 carries out NAS message and direct transfers;
17.1, after UE1 receives the right of speech authorization messages, send the right of speech mandate to TMSE1 and complete message.
18, TMSE1 sends and confirms that (ACK) message is to scheduling Server;
19, (can initiate with the 16th step) scheduling Server simultaneously by SIP, notify (INFO) message, carry right of speech and take content to TMSE2;
20,, after TMSE2 receives this SIP INFO, reply and receive that message acknowledgement 200OK is to scheduling Server;
21, TMSE2 sends right of speech and takies message to eNB2, in order to indicate eNB2 to send right of speech by broadcast mode, takies message to called subscriber equipment.
As can be seen here, the TMSE(under calling UE is the TMSE of calling UE service) side, referring to Fig. 4, a kind of group-calling set-up method that the embodiment of the present invention provides comprises:
S101, cluster mobility session management entity TMSE, receive from the group calling of calling subscriber equipment UE and set up request;
S102, TMSE are converted to SIP (Session Initiation Protocol) by this group calling request of setting up and invite Invite message, wherein carry group calling and set up indication, and this SIP Invite message is sent to dispatch server Server.
Preferably, after TMSE sends to scheduling Server by this SIP Invite message, the method also comprises:
When mistake appears in scheduling Server inside, or this calling UE is when having no right to initiate group calling and setting up request, the errored response that TMSE receiving scheduling Server responds; Perhaps,
After scheduling Server is to calling UE mandate success, the Temporary Response that TMSE receiving scheduling Server sends, set up the request well afoot to determine the group calling that calling UE is initiated.
Preferably, after TMSE receives the Temporary Response of scheduling Server transmission, the method also comprises:
If calling UE is in Idle state, TMSE is that calling UE is set up up link, sends initial context and sets up request to evolved base station eNB, and TMSE receives the initial context of eNB transmission and sets up response;
If calling UE is in connected state, TMSE is after calling UE is set up default bearing, initiates dedicated bearing foundation, and transmission E-UTRAN Radio Access Bearer (E-RAB) is set up request, to trigger eNB initiation RRC connection, reshuffles, for the calling subscriber sets up dedicated bearing; TMSE receives the E-RAB foundation response that eNB has sent after the RRC connection has been reshuffled.
Preferably, the method also comprises:
Response message is set up in the group calling that TMSE receiving scheduling Server sends, and therefrom obtains the right of speech authorization messages;
TMSE sends group calling and sets up response message to calling subscriber equipment, wherein carries the right of speech authorization messages.
Preferably, TMSE send group calling set up response message to calling subscriber equipment after, the method also comprises:
The right of speech mandate that TMSE receives the calling subscriber equipment reply completes message
TMSE sends the right of speech authorization response message to scheduling Server.
Preferably, before TMSE receives and sets up request from the group calling of calling subscriber equipment, the method also comprises:
TMSE receives the request of adhering to from calling subscriber equipment, receive from calling subscriber equipment adhered to message after, to scheduling, Server is sent in the net Indication message.
Preferably, after TMSE is sent in the net Indication message to scheduling Server, the method also comprises:
The authenticating result of the dispatching services for the calling subscriber equipment message that TMSE receiving scheduling Server replys.
Correspondingly, referring to Fig. 5, the TMSE(under called UE is the TMSE of called UE service) side, a kind of group-calling set-up method that the embodiment of the present invention provides comprises step:
TMSE under S201, called subscriber equipment, the invitation Invite message that receiving scheduling server S erver sends, comprising the sign of the calling subscriber equipment of initiating group calling foundation request, and the called subscriber equipment sign;
S202, described TMSE, if determine in group do not have subscriber equipment to be served by this TMSE according to this Invite message, respond the non-existent Indication message of user to scheduling Server; Otherwise, send paging request to eNB.
Preferably, the method also comprises:
Described TMSE, for called subscriber equipment, sends the group calling context and sets up request message to eNB, and receives the group calling context foundation response that eNB responds;
Described TMSE sends SIP 200OK message to scheduling Server, and the confirmation message of receiving scheduling Server reply.
Preferably, the method also comprises:
The right of speech that described TMSE receiving scheduling Server sends takies message;
Described TMSE replys 200OK message to scheduling Server;
Described TMSE sends right of speech and takies message to eNB, in order to indicate eNB to send right of speech by broadcast mode, takies message to called subscriber equipment.
Correspondingly, in scheduling Server side, referring to Fig. 6, a kind of group-calling set-up method that the embodiment of the present invention provides comprises:
S301, dispatch server Server, receive the SIP (Session Initiation Protocol) invitation Invite message that cluster mobility session management entity TMSE sends, and therefrom obtains from calling subscriber's group calling and set up indication;
S302, dispatch server Server are when the calling subscriber being authorized when successful, and this group calling of notice TMSE is set up group calling corresponding to indication and carried out.
Preferably, after scheduling Server receives SIP Invite message, the method also comprises:
If mistake appears in scheduling Server inside, or determine that this calling subscriber haves no right to initiate group calling, dispatch Server and respond errored response to TMSE.
Preferably, the method also comprises:
Scheduling is after Server receives SIP Invite message, according to the information of carrying in this SIP Invite message, and inquiry local data base, the address that obtains all TMSE under the called subscriber of group calling;
Scheduling Server sends respectively Invite message to the TMSE under each called UE, wherein carries calling subscriber's sign, and the sign of called UE.
Preferably, the method also comprises:
Scheduling Server receives the SIP 200OK message that the TMSE under called UE replys for Invite message.
Preferably, the method also comprises:
Scheduling Server is to replying TMSE under the called UE confirmation message for SIP 200OK message.
Preferably, the method also comprises:
After scheduling Server receives the called subscriber's that the TMSE under called UE forwards off-hook 200OK message, send group calling by 200OK message and set up response message to the TMSE under the calling subscriber, wherein carry the right of speech authorization messages.
Preferably, the method also comprises:
Scheduling Server receives the right of speech authorization response message that the TMSE under the calling subscriber returns.
Preferably, the method also comprises:
Scheduling Server, by the SIP INFO, send right of speech and take message to the TMSE under the called subscriber, and receive the 200OK message that the TMSE under the called subscriber replys.
Preferably, the method also comprises:
Scheduling Server receive that TMSE under the calling subscriber sends at the net Indication message, at the net Indication message, this calling subscriber is carried out to the dispatching services authentication according to this.
Preferably, the method also comprises:
Scheduling Server replys dispatching services authenticating result for the calling subscriber to the TMSE under the calling subscriber.
In sum, the embodiment of the present invention, based on TD-LTE wideband multimedia aggregated structure, has proposed the group calling Establishing process of wideband multimedia cluster, comprises in the cluster multi call process of establishing that the called subscriber all can respond group calling under IDLE state or CONNECT state to set up message; And, to initiating the user, do not carry out authentication in the cluster multi call process of establishing, because the user who each has been accessed to this network in the cluster user device power-up authentication process based on Fig. 1 registers and the authentication mistake, after if authentication is passed through, all thought that before user log off this user is the trusted user, can directly initiate the group calling Establishing process.Therefore, broadband multimedia cluster system of the present invention can provide the user bandwidth and better user's experience higher than narrow-band digital cluster, for example can provide visual group-calling service, and the TD-LTE broadband multimedia cluster system framework that the present invention proposes is more simple, three kinds of schemes that propose compared with CCSA can reduce Signalling exchange in the group calling Establishing process better, to reach, reduce group calling setup delay purpose.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code one or more.
The present invention describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present invention.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction be stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out on computer or other programmable devices is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. a group-calling set-up method, is characterized in that, the method comprises:
Cluster mobility session management entity TMSE, receive from the group calling of calling subscriber equipment UE and set up request;
TMSE is converted to SIP (Session Initiation Protocol) by this group calling request of setting up and invites Invite message, wherein carries group calling and sets up indication, and this SIP Invite message is sent to dispatch server Server.
2. method according to claim 1, is characterized in that, after TMSE sends to scheduling Server by this SIP Invite message, the method also comprises:
When mistake appears in scheduling Server inside, or this calling UE is when having no right to initiate group calling and setting up request, the errored response that TMSE receiving scheduling Server responds; Perhaps,
After scheduling Server is to calling UE mandate success, the Temporary Response that TMSE receiving scheduling Server sends, set up the request well afoot to determine the group calling that calling UE is initiated.
3. method according to claim 2, is characterized in that, after TMSE receives the Temporary Response of scheduling Server transmission, the method also comprises:
If calling UE is in Idle state, TMSE is that calling UE is set up up link, sends initial context and sets up request to the evolved base station eNB under calling UE, and the initial context that the eNB under TMSE reception calling UE sends is set up response;
If calling UE is in connected state, TMSE is after calling UE is set up default bearing, initiates dedicated bearing and sets up, and sends E-UTRAN Radio Access Bearer E-RAB and sets up request, initiate the RRC connection with the eNB under the triggering calling UE and reshuffle, for the calling subscriber sets up dedicated bearing; TMSE receives the E-RAB foundation response that the eNB under calling UE has sent after the RRC connection has been reshuffled.
4. method according to claim 3, is characterized in that, the method also comprises:
Response message is set up in the group calling that TMSE receiving scheduling Server sends, comprising the right of speech authorization messages;
TMSE sends group calling and sets up response message to calling subscriber equipment, wherein carries the right of speech authorization messages.
5. method according to claim 4, is characterized in that, TMSE send group calling set up response message to calling subscriber equipment after, the method also comprises:
The right of speech mandate that TMSE receives the calling subscriber equipment reply completes message;
TMSE sends the right of speech authorization response message to scheduling Server.
6. method according to claim 1, is characterized in that, before TMSE receives and sets up request from the group calling of calling subscriber equipment, the method also comprises:
TMSE receives the request of adhering to from calling subscriber equipment, receive from calling subscriber equipment adhered to message after, to scheduling, Server is sent in the net Indication message;
The authenticating result of the dispatching services for the calling subscriber equipment message that TMSE receiving scheduling Server replys.
7. method according to claim 6, is characterized in that, if described dispatching services authenticating result indication failed authentication, the registration failure information of described TMSE recording dispatching business, the group-calling service of next time initiating in order to refuse UE.
8. a group-calling set-up method, is characterized in that, the method comprises:
TMSE under called subscriber equipment, the invitation Invite message that receiving scheduling server S erver sends, comprising the sign of the calling subscriber equipment of initiating group calling foundation request, and the called subscriber equipment sign;
Described TMSE, if determine that according to this Invite message with described called subscriber equipment, not identifying corresponding subscriber equipment in group is served by this TMSE, respond the non-existent Indication message of user to scheduling Server; Otherwise, send paging request to the eNB under called subscriber equipment.
9. method according to claim 8, is characterized in that, the method also comprises:
Described TMSE, for called subscriber equipment, sends the group calling context and sets up request message to eNB, and receives the group calling context foundation response that eNB responds;
Described TMSE sends SIP 200OK message to scheduling Server, and the confirmation message of receiving scheduling Server reply.
10. method according to claim 9, is characterized in that, the method also comprises:
The right of speech that described TMSE receiving scheduling Server sends takies message;
Described TMSE replys 200OK message to scheduling Server;
Described TMSE sends right of speech and takies message to eNB, in order to indicate eNB to send right of speech by broadcast mode, takies message to called subscriber equipment.
11. a group-calling set-up method, is characterized in that, the method comprises:
Dispatch server Server, receive the SIP (Session Initiation Protocol) invitation Invite message that cluster mobility session management entity TMSE sends, and therefrom obtains from calling subscriber's group calling and set up indication;
Dispatch server Server is when the calling subscriber being authorized when successful, and this group calling of notice TMSE is set up group calling corresponding to indication and carried out.
12. method according to claim 11, is characterized in that, after scheduling Server receives SIP Invite message, the method also comprises:
If mistake appears in scheduling Server inside, or determine that this calling subscriber haves no right to initiate group calling, dispatch Server and respond errored response to TMSE.
13. method according to claim 11, is characterized in that, the method also comprises:
Scheduling is after Server receives SIP Invite message, according to the information of carrying in this SIP Invite message, and inquiry local data base, the address that obtains all TMSE under the called subscriber of group calling;
Scheduling Server sends respectively Invite message to the TMSE under each called UE, wherein carries calling subscriber's sign, and the sign of called UE.
14. method according to claim 13, is characterized in that, the method also comprises:
Scheduling Server receives the SIP 200OK message that the TMSE under called UE replys for Invite message.
15. method according to claim 14, is characterized in that, the method also comprises:
Scheduling Server is to replying TMSE under the called UE confirmation message for SIP 200OK message.
16. method according to claim 15, is characterized in that, the method also comprises:
After scheduling Server receives the called subscriber's that the TMSE under called UE forwards off-hook 200OK message, send group calling by 200OK message and set up response message to the TMSE under the calling subscriber, wherein carry the right of speech authorization messages.
17. method according to claim 16, is characterized in that, the method also comprises:
Scheduling Server receives the right of speech authorization response message that the TMSE under the calling subscriber returns.
18. method according to claim 16, is characterized in that, the method also comprises:
Scheduling Server, after receiving the called subscriber's that the affiliated TMSE of called UE forwards off-hook 200OK message, by the SIP INFO, send right of speech and take message to the TMSE under the called subscriber, and receive the 200OK message of the TMSE reply under the called subscriber.
19. method according to claim 11, is characterized in that, the method also comprises:
Scheduling Server receive that TMSE under the calling subscriber sends at the net Indication message, at the net Indication message, this calling subscriber is carried out to the dispatching services authentication according to this.
20. method according to claim 19, is characterized in that, the method also comprises:
Scheduling Server replys dispatching services authenticating result for the calling subscriber to the TMSE under the calling subscriber.
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