CN1717076A - System and method for realizing colony service - Google Patents
System and method for realizing colony service Download PDFInfo
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- CN1717076A CN1717076A CN 200410059473 CN200410059473A CN1717076A CN 1717076 A CN1717076 A CN 1717076A CN 200410059473 CN200410059473 CN 200410059473 CN 200410059473 A CN200410059473 A CN 200410059473A CN 1717076 A CN1717076 A CN 1717076A
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Abstract
This invention discloses a system for realizing cluster service including HRPD system and PTT server, among which, the HRPT system sends PTT service request information to the PTT server, which carries out related operatic of PTT cluster group in terms of the information to generate and send service response information to the HRPD system. This invention also discloses a method for realizing cluster service including that a user sends register requirement information to the PTT server via the HRPD system, PTT assigns a PTT cluster group for the user and monitors the phonetic information of the shared forward service channel of said group, the user can send phonetic information to the PTT server via an inverse service channel after joining in the group, which sends it to the shared forward service channel of said group.
Description
Technical field
The present invention relates to trunking communicating technology, particularly relate to a kind of system and method for realizing group service.
Background technology
Trunked communication system is an indispensable branch of wireless communication system, is one of development focus of moving communicating field in recent years.The implication of trunked communication system is: it is shared that whole available channels that system had all can be all users of system, be intrasystem arbitrary user want with system in another user's communication, as long as idle channel is arranged, just can be under the control of central control board, utilize the idle channel communication links, converse.So say in a sense, trunked communication system is multichannel relaying (forwarding) communication system of sharing several channels automatically.The communication system of it and common multichannel common there is no the difference of essence.But trunked communication system is by the shared one group of radio channel of a plurality of users, and dynamically uses the dedicated mobile communications subsystem of these channels, is mainly used in command dispatch communication, so trunked communication system is special-purpose command dispatching and communication system.And trunked communication system is senior mobile command dispatching communication system, is a kind of shared resource, contribution, provides the multipurpose of excellent service, high-effect and cheap advanced person's radio mobile communication system to the user.
Press-and-talk (PTT) technology is a kind of cluster intercommunication technology, and the PTT business refers to direct-connected " point-to-point " and " putting multiple spot " Speech Communication in real time.This professional very simple half-duplex operation mode of using, promptly have only a people to talk at one time, so that colony exchanges, the calling party is as long as just can initiate conversation to a people or lineup by a button, need not dialing and wait for the other side's off-hook, particular talk group is set up in the phone demand working rapidly.Be specially adapted between team, working group, the colony collaborative work with exchange.
PTT is based on the characteristics of " press-and-talk ", access delay there be the demand higher than plain old telephone, simultaneously, because the characteristics of " half-duplex " that itself had communication, generally need to adopt dedicated network or on the basis of original telephone network, transform and realize, develop into special-purpose cluster network.But, the structure expense of the special-purpose cluster network of special-purpose collection is higher, so hope can utilize the existing ripe network carrying group service that meets the cluster network condition, (High Rate PacketData HRPD) is a kind of more satisfactory network to high-speed grouped data system.
HRPD is a kind of wireless communication system standards that 3GPP2 organizes to set up, belong to the 3G technology category, according to wireless network all-IP evolution trend, given up the circuit domain part, only kept the packet domain part, (Quality of Service, QoS) Packet data service is from low speed to high speed supported in technology and advanced scheduling by the effective service quality.Because HRPD has aloft adopted new modulation technique and has increased methods such as data rate control, optimizing scheduling and time division multiplexing on the interface, makes that the message transmission rate on the air interface is greatly improved.Adopt special-purpose data channel to support high-speed packet data service, the forward direction peak data rate can reach 2.4576Mbps, and oppositely peak data rate can reach 153.6kbps.
Fig. 1 is the network structure of HRPD system, as can be seen from Figure 1, the HRPD system comprises access terminal (AT), Access Network (AN), Packet Control Function (PCF) equipment, group data service node (PDSN) and Access Network authentication and authorization charging server (AN AAA).
AT is similar to the travelling carriage in the original 2G network, and the user can be by being connected computer or directly using the AT that supports Packet data service to visit Packet Data Network with AT (AT is as modulator-demodulator).
AN comprise traditionally base station controller (BSC) and the function of base station (BTS), its on the one hand connects AT by air interface, links to each other with packet data network by the A interface on the one hand.
AN AAA is mainly used in the authentication to AT as an authentication mechanism of access network side, and its function class is similar to the attaching position register (HLR) in the circuit domain core net, and the AN AAA by packet domain core network carries out authentication to AT.
PCF is the equipment that grouping is controlled.
PDSN is the interface module of HRPD network insertion Internet.
The A8/A9 interface is the interface between AN and the PCF equipment, and wherein A8 is a signaling interface, and A9 is a business interface.
The A10/A11 interface is packet data control (PCF) equipment among the AN and the interface between the PDSN, and wherein A11 is a signaling interface, and A10 is a business interface; The A12 interface is used to connect AN and ANAAA transmits authentication information; The A13 interface is the interface between AN and the AN, carries out Signalling exchange when switching between AN, in the message between exchange AT and the PDSN between source AN and the target AN.
Because of the HRPD system has independent operation, fast, the capacious characteristics of data transmission bauds, make its suitable bearing cluster service.But, existing HRPD system does not support group service, and the support BroadCast MultiCast Service, defined the broadcasting share channel in standard, high-rise next broadcasting stream business can issue by the broadcasting share channel, if all users in current network can adapt to the speed of current broadcast shared channel, when having the ability to receive the current broadcast shared channel, can receive this broadcast channel content, broadcast channel need not to retransmit, and all can be answered per family by the usefulness of broadcasting streamer volume application.
But BroadCast MultiCast Service and group service have bigger gap, can not satisfy the basic function of group service: on the one hand, BroadCast MultiCast Service does not have the PTT function, and the user can only select to answer the content of current broadcast channel, can not seize and use broadcast channel; On the other hand, cluster user needs initiatively to set up and to initiate a group calling, carries out single worker's calling and monitoring in this group inside, after being used to complete, should be able to initiatively discharge it.The method that present standard provides can't be finished; In addition, group service need manage and dispatch all cluster users, and present system also can't finish.
Summary of the invention
Main purpose of the present invention is to provide a kind of system that realizes cluster network, based on the HRPD system, realizes group service.
Another main purpose of the present invention is to provide a kind of method that realizes group service, makes it can utilize the HRPD system to realize group service.
The objective of the invention is to be achieved through the following technical solutions:
A kind of system that realizes group service, this system comprise HRPD (high rate packet data) HRPD system, and this system further comprises: the press-and-talk ptt server, described ptt server is connected with the HRPD system, is used for realizing the group service of HRPD system.
Described HRPD system comprises that by eating dishes without rice or wine and have the Access Network that accessing terminal of PTT function is connected, described ptt server is connected with the interface of Access Network by the group service special use, wherein,
Ptt server carries out authentication by Access Network to having accessing terminal of PTT function, finishes the calling and the release of the registration, group application and the group service that access terminal.
Described HRPD system comprises and has Access Network, grouping Packet Control Function PCF and the group data service node PDSN that accessing terminal of PTT function is connected, described accessing terminal is connected by eating dishes without rice or wine with Access Network, described Access Network is connected by the standard A interface with described PDSN with described PCF, described PCF, and described ptt server is connected by the interface of group service special use with PDSN.
Described ptt server is connected with other ptt server by internet router.
Described ptt server is connected with other ptt server by dedicated link.
A kind of method that realizes group service may further comprise the steps:
A, set up the cluster group by ptt server, be reverse traffic channel before this newly-built cluster set of dispense, and cluster group information is set in ptt server, described cluster group information comprises the channel parameter of the forward traffic channel that group number, each cluster group of cluster group is shared;
B, receive when ptt server the cluster group that contains self identify label and applied for that has that accessing terminal of PTT function send group number seize request message after, ptt server allows this to access terminal and sends voice messaging to ptt server by reverse traffic channel, and ptt server issues this voice messaging on the PTT forward shared channel;
C, ptt server are broadcasted described voice messaging by the shared forward traffic channel of this cluster group correspondence, and accessing terminal according to the channel parameter of described forward traffic channel in the described cluster group monitored the voice messaging on the corresponding forward traffic channel.
Steps A comprises:
After A0, ptt server are received the group application request message that sends that accesses terminal, whether the group of judging the application that accesses terminal exists, if exist, with this this cluster group of adding that accesses terminal, and the channel parameter of the forward business signal of this cluster group is sent to this accesses terminal, if there is no, then set up a cluster group, and be that this cluster set of dispense is shared forward traffic channel, and this channel parameter is sent to this accesses terminal.
The information of described cluster group also includes the identify label that accesses terminal that authority adds the cluster group, and has authority to set up and discharge the identify label that accesses terminal of cluster group.
The information of described cluster group also comprises cluster group state information.
The described voice messaging of monitoring on the corresponding forward traffic channel of step C is to generate the scrambler of this cluster group forward traffic channel according to the channel parameter of forward traffic channel by accessing terminal, and the speech data descrambling that utilizes this scrambler that Access Network is sent is realized.
The channel parameter of described forward traffic channel comprises the MAC Index of forward traffic channel.
The channel parameter of described forward traffic channel also comprises when forward direction data rate and forward data packet format.
In steps A 0 this being accessed terminal adds before this cluster group, further comprises: ptt server judges to access terminal whether have authority to add this cluster group according to cluster group information, if then this accesses terminal and adds this cluster group; Otherwise ptt server transmission group application failed message finishes then to accessing terminal.
Set up in steps A 0 before the cluster group, further comprise: ptt server judges to access terminal whether have authority to set up this cluster group according to cluster group information, if then ptt server is set up a cluster group; Otherwise ptt server transmission group application failed message finishes then to accessing terminal.
In steps A 0 ptt server with the channel parameter of the forward traffic channel of newly-built cluster group be sent to access terminal after, further comprise: accessing terminal sends the group channel assignment that comprises himself identify label and cluster group number and acknowledges message to ptt server.
Further comprise between steps A and the step B:
Access terminal and send the user's register request message comprise himself identify label to ptt server;
Ptt server is stored this positional information that accesses terminal, transmission comprises the registration success message of channel parameter of forward direction shared service channel of all cluster groups that this authority that accesses terminal adds to accessing terminal, the channel parameter of the forward traffic channel of therefrom selecting a cluster group that accesses terminal, and monitor speech data on this cluster group forward traffic channel.
The described ptt server of step B is received after the call request message of group number of the cluster group that contains self identify label and applied for that sends of accessing terminal, further comprise: ptt server judges whether this cluster group allows call seizing, if then allow this to access terminal and use the conversation of forward direction shared service channel; Otherwise, send and forbid seizing message to accessing terminal, finish then.
Ptt server allows this to access terminal by after the reverse traffic channel transmission voice messaging among the step B, further comprise: ptt server indication Access Network is set up preceding reverse traffic channel for this accesses terminal, and the channel timer is set, if channel timer expiry, reverse traffic channel before then discharging, otherwise reverse traffic channel before still keeping being somebody's turn to do.
Further comprise after the step C: when ptt server receive access terminal send comprise self identify label and cluster group number seize release message after, no longer on forward shared channel, transmit this PTT user's backward channel content, and reset the group state for allowing call seizing, will seize then and discharge success message and be sent to and access terminal.
Described ptt server discharges after the reverse traffic channel that accesses terminal of speech, further comprises: ptt server comprises available cluster group number and the current call seizing that whether allows of cluster group by forward control channel broadcasting.
Further comprise after the step C: when ptt server receives after the group that comprises himself identify label and cluster group number sent of accessing terminal discharges request message, it is invalid cluster group that this cluster group is set, and sends and comprise group and discharge success message to the user.
After ptt server receives group release request message, the cluster group is set is before the invalid cluster group, further comprise: ptt server judges according to cluster group information whether the user is to have the right to discharge accessing terminal of this cluster group, if it is invalid cluster group that this cluster group then is set; Otherwise transmission group release failure message finishes then to accessing terminal.
It is after the invalid cluster group that ptt server is provided with this cluster group, further comprises: ptt server comprises available cluster group number and the current call seizing that whether allows of cluster group by forward control channel broadcasting.
The described identify label that accesses terminal is unique access terminal identification UATI, international mobile subscriber identity IMSI or the hardware device sequence number ESN that accesses terminal.
The invention provides a kind of system that realizes group service, this system comprises HRPD system and ptt server, HRPD is sent to ptt server with the PTT business request information, receive the PTT service response message that ptt server is sent, concurrent sending voice data receive ptt server and transmit the speech data of coming to ptt server; Ptt server receives the PTT business request information that high-speed grouped data system is sent, and the forward traffic channel of setting up or discharging PTT cluster group, activation or discharge PTT user's reverse traffic channel or share for PTT cluster set of dispense according to the PTT business request information that receives, and the PTT service response message that produces is sent to high-speed grouped data system, and receive the speech data that high-speed grouped data system is sent, send speech data to the high speed block data system.The HRPD system of prior art does not comprise ptt server, and this system can realize BroadCast MultiCast Service, is about to issue by the broadcasting share channel from the broadcasting stream of high level, and all can answer broadcasting per family by the usefulness of broadcasting streamer volume.And in the method for the invention, the user not only can monitor the voice messaging on the shared channel, also can take shared forward traffic channel speech by application, after speech finishes, discharges forward traffic channel, realizes group service.
System and method of the present invention can be to distributing cluster user by the cluster group, the user can apply for adding the cluster group, sets up the cluster group or discharge the cluster group, ptt server can manage the authority and the state of all cluster users, prior art then can not manage cluster user, so system and method for the present invention is the system and method for comparatively perfect realization group service.
Description of drawings
Fig. 1 is the network structure of HRPD system.
Fig. 2 is the network structure of HRPD system according to an embodiment of the invention.
Fig. 3 is the network structure of HRPD system according to another embodiment of the present invention.
Fig. 4 is the flow chart of PTT user's registering flow path of realizing the method for group service according to the present invention.
Fig. 5 realizes that according to the present invention the PTT of the method for group service organizes the flow chart of application process.
Fig. 6 is a call seizing and the flow chart of calling out the release flow process of realizing the method for group service according to the present invention.
Fig. 7 realizes that according to the present invention the PTT group of the method for group service discharges the flow chart of flow process.
Fig. 8 is the network structure according to the HRPD system of third embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described below in conjunction with the drawings and specific embodiments.
Management and the scheduling of the present invention in order to realize cluster user increased the cluster management dispatch server on the basis of former HRPD system: ptt server, ptt server directly links to each other with AN by newly-increased interface APTT.A ptt server can be managed the cluster user in one or more AN range of managements, information such as the user profile of saveset group information, all cluster users in its overlay area and the current group service user mode of all cluster users in the ptt server.Be connected by modes such as Internet route or dedicated links between ptt server and the ptt server, system is each ptt server distributing independent address.
Fig. 2 is the network structure according to the HRPD system of realization group service of the present invention, as can be seen from Figure 2, ptt server links to each other with AN by the APTT interface, and each ptt server can connect a plurality of AN, connects by Internet between a plurality of ptt servers.
AT sends the PTT business request information to AN, AN judges that the message that receives is the PTT service message, then this PTT business request information is forwarded to ptt server, ptt server according to the PTT business request information that receives set up forward traffic channel that PTT group and assignment this group share, with the user add PTT group, activate or discharge PTT user reverse traffic channel, PTT group state is set or release PTT organizes, and the PTT service response message is sent to AN, AN is forwarded to AT with this PTT service response message.AT need pass through certain upgrading, can realize the PTT business, and hereinafter, AT all refers to have the AT of PTT function.
Need to prove, only show the situation that adopts Internet to connect among Fig. 2, system is ptt server distributing independent IP address, also can adopt alternate manner to connect in actual applications between the PTT, for example, modes such as employing dedicated link connect, and connect by dedicated link between promptly a plurality of ptt servers, as shown in Figure 3.In addition, ptt server is the logic independent entity, can merge with AN AAA physically.
The present invention also provides a kind of HRPD system to realize the method for group service, and this method comprises several flow processs: PTT user's registering flow path, PTT group application process, call seizing and calling discharges flow process and group discharges flow process.
In user start or when switching to new AN, need in ptt server, register again, Fig. 4 is the flow chart of PTT user's registering flow path of realizing the method for group service according to the present invention, as can be seen from Figure 4, this flow process comprises the steps:
Step 401:AT sends the PTT registration message to AN on access channel, this registration message comprises user's unique access terminal identification (UATI), international mobile subscriber identity (IMSI) hardware device sequence number (ESN).
In the HRPD network, after user's start, network distributes a UATI for this user, though UATI can be used to identify an AT, but start or handover network all can be redistributed a UATI to the user again at every turn, the UATI that redistributes and the UATI of last sub-distribution might be different, therefore, in ptt server, during the state of storing subscriber information, suggestion uses ESN or user's international mobile subscriber identity (IMSI) to come this user of unique identification, so, except UATI, also may comprise this user's ESN or IMSI in the parameter that reports in this registration message.
Step 402:AN is sent to ptt server with this registration message after receiving the PTT registration message that AT sends.
Step 403:PTT server is judged the PTT user that the user is whether legal according to the UATI that receives and ESN, if then forward step 404 to; Otherwise, forward step 406 to.
This positional information that accesses terminal of step 404:PTT server record, and sending PTT registration success message to AN, this registration success message comprises the medium access control number (MACIndex) that all PTT that this user of preserving in user's UATI and the ptt server has the right to add organize.
Step 405:AN will register success message and be sent to AT, forward step 408 then to.
Step 406:PTT server sends PTT registration failure message to AN, and this registration failure message comprises user's UATI.
Step 407:AN is sent to AT with registration failure message.
Step 408:AT selects the MACIndex of a PTT group from the MACIndex of all PTT groups, the scrambler of the forward traffic channel that synthetic this group is shared, thus AT can monitor this group forward traffic channel.
The initiation sequence that scrambler produces shift register is [1111111r5r4r3r2r1r0d3d2d1d0], and wherein, r5r4r3r2r1r0 is the MACIndex value of 6 bit forward Traffic Channels, and the value of d3d2d1d0 is by concrete forward data rate decision.So the user has known the MACIndex value and the data rate of current forward traffic channel, just can obtain the scrambler of forward traffic channel.Under certain situation, concrete forward data rate is a fixed value, only knows that then the MACIndex value of forward traffic channel just can obtain the scrambler of forward traffic channel, thereby monitors this forward traffic channel.
AT is after PTT registers successfully, can monitor the forward traffic channel of a PTT group, to the AT of the newly-built PTT group of authority is arranged, can realize newly-built PTT group by the flow process that group is built in application, Fig. 5 realizes that according to the present invention the PTT of the method for group service organizes the flow chart of application process, as can be seen from Figure 5, this flow process comprises the steps:.
Step 501:AT sends PTT group solicitation message to AN, and this organizes the group number that newly-built solicitation message comprises user's UATI and applies for newly-built group.
Step 502:AN should organize solicitation message and be sent to ptt server.
Step 503:PTT server judges whether the group of user applies exists, if then forward step 505 to; Otherwise, forward step 504 to.
Step 504:PTT server judges whether this user has the authority of newly-built this PTT group, if then forward step 508 to; Otherwise, forward step 506 to.
Step 505:PTT server judges whether the user is the validated user of this group, if then forward step 511 to; Otherwise, forward step 506 to.
Step 506:PTT server sends newly-built PTT group and fails to AN, and this message comprises user's UATI and newly-built PTT group group number.
Step 507:AN sends this group application failed message to AT, finishes then.
Step 508:PTT server is set up a new cluster group, and store the information of this cluster group, the information of cluster group comprises has the right to limit the user who adds the cluster group, with the user that authority foundation and release cluster group are arranged, send PTT then and set up upright the permission to AN, this message comprises user's UATI and newly-built PTT group group number.
Step 509:AN receives the PTT establishment group grant message that ptt server is sent, and returns the permission response message to ptt server.
Step 510:AN distributes the preceding reverse channel resources of this group, sets up forward traffic channel.
Step 511:AN sends this PTT group channel assignment message to AT, and this PTT group channel assignment message comprises the parameters such as MACIndex of group number, distribution.If forward channel data rate is by the AN assignment, this message also comprises forward data rate or forward data packet format.
The scrambler of the forward traffic channel that synthetic this group of step 512:AT is shared, thus AT can monitor this group forward traffic channel.
Step 513:PTT server is broadcasted PTT group state information on forward channel, this group state information comprises available PTT group number and group state information such as (whether allowing call seizing).
After AT has added a PTT group, if the forward traffic channel that this user wants to take this PTT group gives out information, then need to carry out call seizing, treat that ptt server gives out information after allowing, when issue finishes, need call out release, Fig. 6 is a flow chart of seizing and seize the release flow process of realizing the method for group service according to the present invention, as can be seen from Figure 6, this flow process comprises the steps::
Step 601:AT sends the PTT call request message to AN, and this is seized request message and comprises parameters such as user's UATI and group number.
Step 602:AN sends this and seizes solicited message to ptt server.
Step 603:PTT server judges whether the user is validated user, if then forward step 604 to; Otherwise, forward step 609 to.
Step 604:PTT server judgement group user mode if organize the forward channel free time, then forwards step 605 to; Otherwise, forward step 607 to.
Step 605:PTT server sends PTT and calls out and allow message to AN, and this callings allows message to comprise parameters such as user's UATI and group number, other users is set simultaneously forbids seizing this PTT and organize.
Step 606:AN sends this and seizes permission message to AT, forwards step 611 then to.
Step 607:PTT server sends PTT and seizes disable message to AN, and this is seized disable message and comprises parameters such as user's UATI and group number.
Step 608:AN sends this and seizes disable message to AT, finishes then.
Step 609:PTT server sends PTT call request failed message to AN, and this call request failed message comprises parameters such as user's UATI and group number.
Step 610:AN sends this and seizes request failure message to AT, finishes then.
Step 611:AT sets up reverse traffic channel or talks by existing reverse traffic channel, AN directly is forwarded to ptt server with the reverse data bag that AT sends, ptt server is forwarded to the ptt server that other has set up this PTT group with this reverse data bag, is sent to all AT in the group by the corresponding distribution forward channel of this PTT group.
Step 612:PTT server judges that whether the air time is above the air time threshold value of setting, if then forward step 615 to; Otherwise, return step 612, continue to judge whether the air time surpasses the air time threshold value of setting.
Step 613:AT sends PTT and seizes release message to AN, and this call release message comprises parameters such as user's UATI and group number.
Step 614:AN returns PTT and seizes to discharge and acknowledge message to AT, and this is seized release message is forwarded to ptt server.
Step 615:PTT server is no longer transmitted this PTT user's backward channel content on forward shared channel, and resets the group state and seize for allowing.
Step 616:PTT server sends PTT and seizes the release success message to AN, and this is seized and discharges UATI and the group number that success message comprises the user.
Step 617:AN sends this and seizes the release success message to AT.
Step 618:PTT server is broadcasted PTT group state information on forward channel, this group state information comprises available PTT group number, group state information such as (whether allowing call seizing).
If the user wishes to cancel PTT group, should discharge this PTT group to the ptt server application, Fig. 7 realizes that according to the present invention the PTT group of the method for group service discharges the flow chart of flow process, as can be seen from Figure 7, this flow process comprises the steps:
Step 701:AT sends the PTT group and discharges request message to AN, and this group release request message comprises parameters such as user's UATI and group number.
Step 702:AN sends the PTT group and discharges and acknowledge message to AT, and should organize the release request message and be forwarded to ptt server.
Step 703:PTT server judges whether the user has authority to discharge this PTT group, if then forward step 704 to; Otherwise, forward step 707 to.
Step 704:PTT server is provided with this PTT group and is invalid PTT group in database, upgrade the group state of this PTT group on other ptt server simultaneously.
Step 705:PTT server sends the PTT group and discharges success message to AN, and this group discharges UATI and the group number that success message comprises the user.
Step 706:AN sends this group and discharges success message to AT, forwards step 609 then to.
Step 707:PTT server sends PTT group release failure message to AN, and this group release failure message comprises user's UATI and group number.
Step 708:AN sends this group release failure message to AT.
Step 709:PTT server is broadcasted PTT group state information on forward channel, this group state information comprises the information such as forward direction speed of available PTT group number, group state (whether allowing call seizing) and each available PTT group.
In concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition to the method according to this invention.For example, ptt server also can be connected on the PDSN of HRPD system, as shown in Figure 8, the various PTT dependent instructions that AT sends directly are uploaded to PDSN by the A interface, be forwarded to ptt server by PDSN again, the various relevant PTT instruction message that ptt server sends is sent to PDSN earlier, be issued to AT by PDSN again, in this case, ptt server is mainly finished user's authentication and management, and the maintenance of the various status messages of PTT, and data switch section is finished by the PDSN in the former network, can be connected by the Internet router between ptt server and other ptt server, also can connect by dedicated link.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.
Claims (24)
1, a kind of system that realizes group service, this system comprises HRPD (high rate packet data) HRPD system, it is characterized in that, this system further comprises: the press-and-talk ptt server, described ptt server is connected with the HRPD system, is used for realizing the group service of HRPD system.
2, the system of realization group service according to claim 1, it is characterized in that described HRPD system comprises that by eating dishes without rice or wine and have the Access Network that accessing terminal of PTT function is connected, described ptt server is connected with the interface of Access Network by the group service special use, wherein
Ptt server carries out authentication by Access Network to having accessing terminal of PTT function, finishes the calling and the release of the registration, group application and the group service that access terminal.
3, the system of realization group service according to claim 1, it is characterized in that, described HRPD system comprises and has Access Network, grouping Packet Control Function PCF and the group data service node PDSN that accessing terminal of PTT function is connected, described accessing terminal is connected by eating dishes without rice or wine with Access Network, described Access Network is connected by the standard A interface with described PDSN with described PCF, described PCF, and described ptt server is connected by the interface of group service special use with PDSN.
According to the system of claim 2 or 3 described realization group services, it is characterized in that 4, described ptt server is connected with other ptt server by internet router.
According to the system of claim 2 or 3 described realization group services, it is characterized in that 5, described ptt server is connected with other ptt server by dedicated link.
6, a kind of method that realizes group service is characterized in that, this method may further comprise the steps:
A, set up the cluster group by ptt server, be reverse traffic channel before this newly-built cluster set of dispense, and cluster group information is set in ptt server, described cluster group information comprises the channel parameter of the forward traffic channel that group number, each cluster group of cluster group is shared;
B, receive when ptt server the cluster group that contains self identify label and applied for that has that accessing terminal of PTT function send group number seize request message after, ptt server allows this to access terminal and sends voice messaging to ptt server by reverse traffic channel, and ptt server issues this voice messaging on the PTT forward shared channel;
C, ptt server are broadcasted described voice messaging by the shared forward traffic channel of this cluster group correspondence, and accessing terminal according to the channel parameter of described forward traffic channel in the described cluster group monitored the voice messaging on the corresponding forward traffic channel.
7, method according to claim 6 is characterized in that, steps A comprises:
After A0, ptt server are received the group application request message that sends that accesses terminal, whether the group of judging the application that accesses terminal exists, if exist, with this this cluster group of adding that accesses terminal, and the channel parameter of the forward business signal of this cluster group is sent to this accesses terminal, if there is no, then set up a cluster group, and be that this cluster set of dispense is shared forward traffic channel, and this channel parameter is sent to this accesses terminal.
8, the method for realization group service according to claim 6 is characterized in that, the information of described cluster group also includes the identify label that accesses terminal that authority adds the cluster group, and has authority to set up and discharge the identify label that accesses terminal of cluster group.
9, the method for realization group service according to claim 6 is characterized in that, the information of described cluster group also comprises cluster group state information.
10, the method for realization group service according to claim 6, it is characterized in that, the described voice messaging of monitoring on the corresponding forward traffic channel of step C is to generate the scrambler of this cluster group forward traffic channel according to the channel parameter of forward traffic channel by accessing terminal, and the speech data descrambling that utilizes this scrambler that Access Network is sent is realized.
11, the method for realization group service according to claim 10 is characterized in that, the channel parameter of described forward traffic channel comprises the medium access control MAC Index of forward traffic channel.
12, the method for realization group service according to claim 11 is characterized in that, the channel parameter of described forward traffic channel also comprises when forward direction data rate and forward data packet format.
13, the method for realization group service according to claim 7, it is characterized in that, in steps A 0, this is accessed terminal and add before this cluster group, further comprise: ptt server judges to access terminal whether have authority to add this cluster group according to cluster group information, if then this accesses terminal and adds this cluster group; Otherwise ptt server transmission group application failed message finishes then to accessing terminal.
14, the method for realization group service according to claim 7, it is characterized in that, in steps A 0, set up before the cluster group, further comprise: ptt server judges to access terminal whether have authority to set up this cluster group according to cluster group information, if then ptt server is set up a cluster group; Otherwise ptt server transmission group application failed message finishes then to accessing terminal.
15, the method for realization group service according to claim 7, it is characterized in that, in steps A 0 ptt server with the channel parameter of the forward traffic channel of newly-built cluster group be sent to access terminal after, further comprise: accessing terminal sends the group channel assignment that comprises himself identify label and cluster group number and acknowledges message to ptt server.
16, the method for realization group service according to claim 6 is characterized in that, further comprises between steps A and the step B:
Access terminal and send the user's register request message comprise himself identify label to ptt server;
Ptt server is stored this positional information that accesses terminal, transmission comprises the registration success message of channel parameter of forward direction shared service channel of all cluster groups that this authority that accesses terminal adds to accessing terminal, the channel parameter of the forward traffic channel of therefrom selecting a cluster group that accesses terminal, and monitor speech data on this cluster group forward traffic channel.
17, the method for realization group service according to claim 6, it is characterized in that, the described ptt server of step B is received after the call request message of group number of the cluster group that contains self identify label and applied for that sends of accessing terminal, further comprise: ptt server judges whether this cluster group allows call seizing, if then allow this to access terminal and use the conversation of forward direction shared service channel; Otherwise, send and forbid seizing message to accessing terminal, finish then.
18, the method for realization group service according to claim 6, it is characterized in that, ptt server allows this to access terminal by after the reverse traffic channel transmission voice messaging among the step B, further comprise: ptt server indication Access Network is set up preceding reverse traffic channel for this accesses terminal, and the channel timer is set, if the channel timer expiry, reverse traffic channel before then discharging, otherwise reverse traffic channel before still keeping being somebody's turn to do.
19, the method for realization group service according to claim 6, it is characterized in that, further comprise after the step C: when ptt server receive access terminal send comprise self identify label and cluster group number seize release message after, no longer on forward shared channel, transmit this PTT user's backward channel content, and reset the group state for allowing call seizing, will seize then and discharge success message and be sent to and access terminal.
20, the method for realization group service according to claim 19, it is characterized in that, described ptt server discharges after the reverse traffic channel that accesses terminal of speech, further comprises: ptt server comprises available cluster group number and the current call seizing that whether allows of cluster group by forward control channel broadcasting.
21, the method for realization group service according to claim 6, it is characterized in that, further comprise after the step C: when ptt server receives after the group that comprises himself identify label and cluster group number sent of accessing terminal discharges request message, it is invalid cluster group that this cluster group is set, and transmission comprises group release success message to the user.
22, the method for realization group service according to claim 21, it is characterized in that, after ptt server receives group release request message, the cluster group is set is before the invalid cluster group, further comprise: ptt server judges according to cluster group information whether the user is to have the right to discharge accessing terminal of this cluster group, if it is invalid cluster group that this cluster group then is set; Otherwise transmission group release failure message finishes then to accessing terminal.
23, the method for realization group service according to claim 21, it is characterized in that, it is after the invalid cluster group that ptt server is provided with this cluster group, further comprises: ptt server comprises available cluster group number and the current call seizing that whether allows of cluster group by forward control channel broadcasting.
24, the method for realization group service according to claim 6 is characterized in that, the described identify label that accesses terminal is unique access terminal identification UATI, international mobile subscriber identity IMSI or the hardware device sequence number ESN that accesses terminal.
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| CNB2004100594735A CN100420316C (en) | 2004-06-28 | 2004-06-28 | System and method for realizing colony service |
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| CNB2004100594735A CN100420316C (en) | 2004-06-28 | 2004-06-28 | System and method for realizing colony service |
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| CN1717076A true CN1717076A (en) | 2006-01-04 |
| CN100420316C CN100420316C (en) | 2008-09-17 |
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| CNB2004100594735A Expired - Fee Related CN100420316C (en) | 2004-06-28 | 2004-06-28 | System and method for realizing colony service |
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