CN100411459C - Method and system for realizing press-and-talk business - Google Patents
Method and system for realizing press-and-talk business Download PDFInfo
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- CN100411459C CN100411459C CNB2005100851029A CN200510085102A CN100411459C CN 100411459 C CN100411459 C CN 100411459C CN B2005100851029 A CNB2005100851029 A CN B2005100851029A CN 200510085102 A CN200510085102 A CN 200510085102A CN 100411459 C CN100411459 C CN 100411459C
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Abstract
The present invention discloses a method and a system for realizing PTT service. Firstly, interfaces used for communicating with a group switch and a POC server are arranged on a PTT terminal. When a current network of the PTT terminal comprises a group network, the group switch is used for realizing the PTT service. When the current network of the PTT terminal does not comprise the group network but comprises a POC network, the POC server is used for realizing the PTT service. The present invention has the advantages that when the PTT terminal is in the group network, the PTT terminal is served by a high quality PTT service provided by the group network; when the PTT terminal leaves the group network but is in the POC network, the PTT terminal can also be served by the PTT service provided by the POC network. At the same time, the present invention further adds an interface for communicating with the POC server on the group switch and adds an interface for communicating with the group switch on the POC server, and thus, the success ratio that the PTT terminal is served by the PTT service of the group network and the POC is further raised.
Description
Technical field
The present invention relates to the press-and-talk business field, be specifically related to a kind of method and system that realize press-and-talk business.
Background technology
Press-and-talk (PTT, Push to Talk) business refers to the voice communication of real-time, direct-connected " point-to-point " or " putting multiple spot ".This professional very simple half-duplex operation mode of using promptly can only have people speech at synchronization, so that colony exchanges.The calling party only needs by next button, need not dialing and wait for the other side's off-hook, just can initiate conversation to one or lineup, but phone group is set up in the demand working of conversing rapidly.This business is specially adapted to the collaborative interchange between member in team, working group, the colony.
At present, the implementation of PTT business according to the difference of the network architecture, is divided into two kinds:
The special-purpose cluster network of a kind of employing is realized, as integrated digital enhanced networks (iDEN, IntergratedDigital Enhanced Network), Terrestrial trunked radio (Tetra, Terrestrial TrunkRadio System) etc., its network architecture comprises: it is professional or receive the PTT terminal of the PTT business that clustering switch sends and be used to receive PTT that the PTT terminal sends professional or the PTT business is sent to the clustering switch of PTT terminal to be used to initiate PTT.This network architecture all supports group service to handle from the Access Network to the core net, and generally shared descending group-calling service channel is arranged all.The advantage of this mode is: call setup speed is fast, and quality of service can guarantee.Shortcoming is: owing to need to build the network of special support PTT business, invest greatlyyer, be difficult to accomplish wide covering.
The another kind of employing based on PTT business (POC, the PTT Over Cellular) network of Cellular Networks realized.This network architecture is in public's Cellular Networks, for example: at Global Systems for Mobile communications (GSM, GlobalSystem for Mobile Communications), code division multiple access (CDMA, Code DivisionMultiple Address), Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code DivisionMultiple Address) etc. packet domain increases PTT equipment, general by ip voice (VOIP, Voice Over IP) mode provides PTT business, also can provide PTT business by circuit domain.Its network architecture comprises: it is professional or receive the PTT terminal of the PTT business that POC server sends and be used to receive PTT that the PTT terminal sends professional or the PTT business is sent to the POC server of PTT terminal to be used to initiate PTT.The advantage of this mode is: do not need Access Network and core net to make an amendment, invest lessly, coverage is wider.Shortcoming is: calling establishment time delay is bigger, does not support shared channel, and quality of service is unsecured.
Present PTT terminal can only adopt a kind of PTT of the carrying out business in cluster access way or the POC access way.For the user who only supports the cluster access way, can only carry out the PTT business by trunking signal in the cluster network overlay area, therefore,, gone out cluster network and just can't carry out the PTT business though can enjoy high quality services at cluster network; For the user who only supports the POC access way, though can in the scope of bigger public's Cellular Networks, carry out the PTT business by the POC signaling, but service quality can not get guaranteeing, especially, even the PTT terminal has been in the coincidence zone of cluster network and POC network, but owing to do not support the cluster access way, the result still is without access to the high-quality service that cluster network provides.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of the PTT of realization business, make the PTT terminal when the cluster network overlay area, can enjoy the high-quality PTT service that cluster network provides, when leaving the cluster network overlay area but being in the POC network's coverage area, can enjoy the PTT service that the POC network provides.Simultaneously, the invention provides a kind of system of the PTT of realization business, both can carry out the PTT business, also can carry out the purpose of PTT business at the POC network at cluster network to realize the PTT terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that realizes press-and-talk PTT business is provided with the interface of communicating by letter with clustering switch on the PTT terminal, be provided with simultaneously and the interface of communicating by letter based on the professional POC server of the PTT of Cellular Networks, and this method comprises:
The PTT terminal detects current self residing network type, judge then whether current self network of living in comprises cluster network, if, interface then by communicating by letter with clustering switch, initiate the PTT business to clustering switch, clustering switch is received this business of back realization; Otherwise, judge further whether current self network of living in comprises the POC network, if then the interface by communicating by letter with POC server is initiated the PTT business to POC server, POC server receives that the back realizes this business, otherwise, this service request failure.
The residing network type of described PTT terminal detection self is realized by following steps:
The PTT terminal receives the broadcast that carries network identity that network issues, and in the network identity of self preserving, searches the sign identical with this network identity then, if find, then judges from being in the corresponding network of this sign.
Described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in cluster network, if insert called; Otherwise, send the service request refuse information for the PTT terminal.
Set in advance the interface that clustering switch is communicated by letter with POC server, and the POC server interface of communicating by letter with clustering switch, and,
Described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in cluster network, if insert called; Otherwise, by the interface of communicating by letter with POC server, this service request is transmitted to POC server, after POC server receives service request, the called number that carries according to request message, judge called whether in the POC network, if, insert called, otherwise, by the interface of communicating by letter with clustering switch, the notice clustering switch sends the service request refuse information for the PTT terminal.
Set in advance the interface that clustering switch is communicated by letter with POC server, and the POC server interface of communicating by letter with clustering switch, and,
Described method further comprises: the interface of POC server by communicating by letter with clustering switch, will be at the number notifying clustering switch of the PTT terminal of self registering, and clustering switch is received this number of back preservation, and,
Described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that this request message carries, judge called in cluster network, if insert called; Otherwise, according to called number and self preserve at the PTT termination number of POC server registration, judge called whether in the POC network, if by the interface of communicating by letter with POC server, the notice POC server inserts called, otherwise, send the service request refuse information for the PTT terminal.
Described POC server realizes that the concrete steps of PTT business are:
Whether POC server receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in the POC network, if insert called; Otherwise, send the service request refuse information for the PTT terminal.
Set in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server, and,
Described POC server is preserved the number of the PTT terminal that belongs to different clustering switch in advance,
And,
Described POC server realizes that the concrete steps of PTT business are:
Whether POC server receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in the POC network, if insert called; Otherwise, by the interface of communicating by letter with clustering switch, service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, judge called whether in cluster network, if, insert called, otherwise by the interface of communicating by letter with POC server, the notice POC server sends the service request refuse information for the PTT terminal.
Set in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server, and,
Described POC server is preserved the corresponding relation of the clustering switch of PTT terminal and its ownership in advance, and, described method further comprises: POC server will be at the interface of number by communicating by letter of the PTT terminal of self registration with clustering switch, the notice clustering switch, clustering switch is received this number of back preservation, and
Described POC server realizes that the concrete steps of PTT business are:
After POC server receives the PTT service request of PTT terminal initiation, by the interface of communicating by letter with clustering switch, directly service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, according to the called number in the request message, judge called whether in cluster network, if insert called; Otherwise, according to called number and the PTT termination number of self having preserved in the POC server registration, judge called whether in the POC network, if, by the interface of communicating by letter with POC server, the notice POC server inserts called, otherwise, by the interface of communicating by letter with POC server, the notice POC server sends the service request refuse information for the PTT terminal.
Set in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server,
Described POC server is preserved the corresponding relation of the clustering switch of PTT terminal and its ownership in advance, and described method further comprises: the PTT terminal is registered self number on POC server, and clustering switch is not received the number of the registered PTT terminal that POC server sends, and
Described POC server realizes that the concrete steps of PTT business are:
After POC server receives the PTT service request of PTT terminal initiation, by the interface of communicating by letter with clustering switch, directly service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, the called number that carries according to request message, judge called whether in cluster network, if insert called; Otherwise, with the interface of service request, return to POC server by communicating by letter with POC server, after POC server receives service request, judge called whether in the POC network, if, insert called, otherwise, send the service request refuse information for the PTT terminal.
A kind of system that realizes press-and-talk PTT business comprises: have simultaneously with the clustering switch communication interface and with the PTT terminal of POC server communication interface, clustering switch and POC server, wherein,
PTT terminal: when detecting current self network of living in and comprising cluster network,, send the PTT service request to clustering switch by the interface of communicating by letter with clustering switch; Detect that current self network of living in does not comprise cluster network but when comprising the POC network,, send the PTT service request to POC server by the interface of communicating by letter with POC server; Be used for the interface of communicating by letter simultaneously, receive the PTT service request that clustering switch sends by with clustering switch, or the interface by communicating by letter with POC server, the PTT service request that POC server sends received;
Clustering switch: be used to receive the PTT service request that the PTT terminal is sent, or send the PTT service request to the PTT terminal;
POC server: be used to receive the PTT service request that the PTT terminal is sent, or send the PTT service request to the PTT terminal.
The interface that described PTT terminal is communicated by letter with clustering switch is supported trunking signal, and the interface that described PTT terminal is communicated by letter with POC server is supported the POC signaling.
Described clustering switch also includes the interface of communicating by letter with POC server, and described POC server also includes the interface of communicating by letter with clustering switch, and,
The interface of described clustering switch by communicating by letter with POC server receives the PTT service request that POC server sends, or the interface by communicating by letter with POC server, sends the PTT service request to POC server;
The interface of described POC server by communicating by letter with clustering switch receives the PTT service request that clustering switch sends, or the interface by communicating by letter with clustering switch, sends the PTT service request to clustering switch.
Compared with prior art, method and system provided by the present invention, interface of communicating by letter with clustering switch and the interface of communicating by letter with POC server at first are set on the PTT terminal, when the current network of living in of PTT terminal comprises cluster network, realize the PTT business by clustering switch; When the current network of living in of PTT terminal does not comprise cluster network but comprises the POC network, realize the PTT business by POC server, the invention enables the PTT terminal when cluster network, can enjoy the high-quality PTT service that cluster network provides, left cluster network but also can enjoy the PTT service that the POC network provides when being in the POC network.Simultaneously, the present invention further increases the interface of communicating by letter with POC server on clustering switch, increase the interface of communicating by letter with clustering switch on POC server, has further improved the PTT terminal and has enjoyed the success rate that PTT serves at cluster network and POC network.
Description of drawings
Fig. 1 is the system block diagram of realization PTT business provided by the invention;
Fig. 2 is the flow chart of realization PTT business provided by the invention;
Fig. 3 carries out the flow chart of the specific embodiment one of PTT calling at cluster network for PTT terminal provided by the invention;
Fig. 4 carries out the flow chart of the specific embodiment two of PTT calling at cluster network for PTT terminal provided by the invention;
Fig. 5 carries out the flow chart of the specific embodiment three of PTT calling at cluster network for PTT terminal provided by the invention;
Fig. 6 carries out the flow chart of the specific embodiment one of PTT calling at the POC network for PTT terminal provided by the invention;
Fig. 7 carries out the flow chart of the specific embodiment two of PTT calling at the POC network for PTT terminal provided by the invention;
Fig. 8 carries out the flow chart of the specific embodiment three of PTT calling at the POC network for PTT terminal provided by the invention;
Fig. 9 carries out the flow chart of the specific embodiment four of PTT calling at the POC network for PTT terminal provided by the invention.
Embodiment
The present invention at first will be provided with the interface of communicating by letter with clustering switch on the PTT terminal, this interface can be supported trunking signal, and the interface of communicating by letter with POC server is set simultaneously, and this interface can be supported the POC signaling;
Further, the present invention increases the interface of communicating by letter with POC server on clustering switch, and the signaling format that this interface is supported can be by cluster network and POC network negotiate regulation;
Further, the present invention increases the interface of communicating by letter with clustering switch on POC server, and the signaling format that this interface is supported equally can be by cluster network and POC network negotiate regulation.
Fig. 1 is the system block diagram of realization PTT business provided by the invention, and as shown in Figure 1, it mainly comprises:
The PTT terminal: when determine to need initiating the PTT service request, comprise cluster network if detect current self network of living in, then the interface by communicating by letter with clustering switch sends the PTT service request to clustering switch; Do not comprise cluster network but comprise the POC network if detect current self network of living in, then the interface by communicating by letter with POC server sends the PTT service request to POC server; Receive the PTT service request that clustering switch sends by the interface of communicating by letter simultaneously, or receive the PTT service request that POC server sends by the interface of communicating by letter with POC server with clustering switch.
Clustering switch: be used to receive the PTT service request that the PTT terminal is sent, or be used for sending the PTT service request to the PTT terminal,
Further, be used for the interface of communicating by letter, receive the PTT service request that POC server sends by with POC server, or the interface by communicating by letter with POC server, the PTT service request sent to POC server.
POC server: be used to receive the PTT service request that the PTT terminal is sent, or be used for sending the PTT service request to the PTT terminal,
Further, be used for the interface of communicating by letter, receive the PTT service request that clustering switch sends by with clustering switch, or the interface by communicating by letter with clustering switch, the PTT service request sent to clustering switch.
Fig. 2 is the flow chart of realization PTT business provided by the invention, and as shown in Figure 2, its concrete steps are as follows:
Step 201:PTT terminal determine to need is initiated the PTT service request, detects current self residing network type.
The PTT terminal has been preserved the network identity of heterogeneous networks in advance, when receiving network broadcast message, in the network identity of self preserving, search the identical sign of network identity of carrying, after finding, just think from being in the corresponding network of this sign with network broadcast message.
Whether current self network of living in of step 202:PTT terminal judges comprises cluster network, if, by the interface of communicating by letter, sending the PTT service request to clustering switch with clustering switch, clustering switch receives that the back realizes the PTT business, this flow process finishes; Otherwise, execution in step 203.
As long as comprise cluster network in the residing network of current PTT terminal, the PTT terminal just realizes the PTT business by cluster network.
Whether current self network of living in of step 203:PTT terminal judges comprises the POC network, if, by the interface of communicating by letter, sending the PTT service request to POC server with POC server, POC server receives that the back realizes the PTT business; Otherwise, the service request failure.
Have only PTT terminal present located network not comprise cluster network, but when comprising the POC network, the PTT terminal just realize the PTT business by the POC network.
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
In the present invention, when the PTT terminal enters cluster network for the first time, on clustering switch, finish registration; When the PTT terminal enters the POC network for the first time, on POC server, finish registration.
The flow chart that PTT calls out is carried out for PTT terminal provided by the invention in Fig. 3～5 in cluster network, wherein, what Fig. 3 provided is the example that clustering switch does not have to increase the interface of communicating by letter with POC server, and what Figure 4 and 5 provided is the example that clustering switch has increased the interface of communicating by letter with POC server;
The PTT terminal that Fig. 6～9 provide for invention is carried out the flow chart that PTT calls out in the POC network, wherein, what Fig. 6 provided is the example that POC server does not have to increase the interface of communicating by letter with clustering switch, and what Fig. 7～9 provided is the example that POC server has increased the interface of communicating by letter with clustering switch;
And what Fig. 4 and 8 provided is that POC server will be in the situation of the PTT termination number notice clustering switch of self registering, and what Fig. 5 and Fig. 9 provided is that POC server will be in the situation of the PTT termination number notice clustering switch of self registering.
Below each embodiment is further specifically described.
Fig. 3 carries out the flow chart of the specific embodiment one that PTT calls out for PTT terminal provided by the invention at cluster network, and as shown in Figure 3, concrete steps are as follows:
Step 301:PTT terminal is determined currently self to be in cluster network, as caller, by the interface of communicating by letter with clustering switch, with the request of setting up that makes a call of trunking signal form.Carry the calling and called number in the request message.
Step 302: clustering switch receives this request, according to the called number in the request message, judge called whether in cluster network, if, execution in step 303; Otherwise, sending call rejection message to caller, this flow process finishes.
Because clustering switch not have to increase the interface communicate by letter with POC server, thus as if called not at cluster network but at the POC network, this business just can't realize.
Step 303: clustering switch is to called transmission setup requests.
Step 304: after called the receiving, return the call setup response to caller by clustering switch.
Fig. 4 carries out the flow chart of the specific embodiment two that PTT calls out for PTT terminal provided by the invention at cluster network, and as shown in Figure 4, concrete steps are as follows:
Step 401:PTT terminal is determined currently self to be in cluster network, as caller, by the interface of communicating by letter with clustering switch, with the request of setting up that makes a call of trunking signal form.Carry the calling and called number in the request message.
Step 402: clustering switch receives this request, according to the called number in the request message, judge called whether in cluster network, if, execution in step 403; Otherwise, execution in step 405.
Step 403: clustering switch is to called transmission setup requests.
Step 404: after called the receiving, return the call setup response by clustering switch to caller, this flow process finishes.
Step 405: clustering switch is according to the called number in the request message, judge called whether in the POC network, if, execution in step 406; Otherwise, sending call rejection message to caller, this flow process finishes.
The PTT terminal enters in the POC network, and after registration on the POC server, POC server will be at the interface of with clustering switch communicating by letter of self registered PTT termination number by increasing newly, and notice clustering switch, clustering switch are received this number of back preservation.
Step 406: clustering switch by the newly-increased interface of communicating by letter with POC server, is transmitted to POC server with setup requests.
The concrete form of this setup requests is by cluster network and POC network provisions for negotiations in advance.
After step 407:POC server is received, to called transmission setup requests.
Step 408: after called the receiving, return the call setup response to caller by POC server and clustering switch.
Here, POC server returns the call setup response by newly-increased and communication interface clustering switch to clustering switch.The concrete form of this response is equally by cluster network and POC network provisions for negotiations in advance.
Fig. 5 carries out the flow chart of the specific embodiment three that PTT calls out for PTT terminal provided by the invention at cluster network, and as shown in Figure 5, concrete steps are as follows:
Step 501:PTT terminal is determined currently self to be in cluster network, as the interface of caller by communicating by letter with clustering switch, with the request of setting up that makes a call of trunking signal form.Carry the calling and called number in the request message.
Step 502: clustering switch receives this request, according to the called number in the request message, judge called whether in cluster network, if, execution in step 503; Otherwise, execution in step 505.
Step 503: clustering switch is to called transmission setup requests.
Step 504: after called the receiving, return the call setup response by clustering switch to caller, this flow process finishes.
Step 505: clustering switch is transmitted to POC server by newly-increased and communication interface POC server with setup requests.
The PTT terminal enters into the POC network, and after registration on the POC server, POC server does not have will be at self registered PTT termination number notice clustering switch.
After step 506:POC server is received, judge called whether in the POC network, if, execution in step 507; Otherwise by the newly-increased interface of communicating by letter with clustering switch, the notice clustering switch sends call rejection message to caller, and this flow process finishes.
Step 507:POC server is to called transmission setup requests.
Step 508: after called the receiving, return the call setup response to caller by POC server and clustering switch.
Fig. 6 carries out the flow chart of the specific embodiment one that PTT calls out for PTT terminal provided by the invention at the POC network, and as shown in Figure 6, concrete steps are as follows:
Step 601:PTT terminal is determined currently self not to be in cluster network but to be in the POC network, as the interface of caller by communicating by letter with POC server, with the request of setting up that makes a call of POC signaling format.Carry the calling and called number in the request message.
Step 602:POC server receives this request, according to the called number in the request message, judge called whether in the POC network, if, execution in step 603; Otherwise, sending call rejection message to caller, this flow process finishes.
Because POC server not have to increase the interface communicate by letter with clustering switch, thus as if called not at the POC network but at cluster network, this business also can't realize.
Step 603:POC server is to called transmission setup requests.
Step 604: after called the receiving, return the call setup response to caller by POC server.
Fig. 7 carries out the flow chart of the specific embodiment two that PTT calls out for PTT terminal provided by the invention at the POC network, and as shown in Figure 7, concrete steps are as follows:
Step 701:PTT terminal is determined currently self not to be in cluster network but to be in the POC network, as the interface of caller by communicating by letter with POC server, with the request of setting up that makes a call of POC signaling format.Carry the calling and called number in the request message.
Step 702:POC server receives this request, according to the called number in the request message, judge called whether in the POC network, if, execution in step 703; Otherwise, execution in step 705.
Step 703:POC server is to called transmission setup requests.
Step 704: after called the receiving, return the call setup response by POC server to caller, this flow process finishes.
Step 705:POC server by the newly-increased interface of communicating by letter with clustering switch, is transmitted to setup requests the clustering switch of caller ownership according to the calling number in the request message.
Preserved the number of the PTT terminal that belongs to different clustering switch on the POC server in advance.
Step 706: the clustering switch of caller ownership receives this request, according to the called number in the request message, judge called whether in cluster network, if, execution in step 707; Otherwise notice POCServer sends call rejection message to caller, and this flow process finishes.
Step 707: the clustering switch of caller ownership is to called transmission setup requests.
Step 708: after called the receiving, the clustering switch and the POC server that belong to by caller return the call setup response to caller.
Here, the clustering switch of caller ownership returns the call setup response by the newly-increased interface of communicating by letter with POC server to POC server.The concrete form of this response is equally by cluster network and POC network provisions for negotiations in advance.
Fig. 8 carries out the flow chart of the specific embodiment three that PTT calls out for PTT terminal provided by the invention at the POC network, and as shown in Figure 8, concrete steps are as follows:
Step 801:PTT terminal is determined currently self not to be in cluster network but to be in the POC network, as the interface of caller by communicating by letter with POC server, with the request of setting up that makes a call of POC signaling format.Carry the calling and called number in the request message.
Step 802:POC server receives this request, according to the calling number in the request message, by the newly-increased interface of communicating by letter with clustering switch, will call out the clustering switch that directly is transmitted to the caller ownership.
Step 803: after the clustering switch of caller ownership is received, according to the called number in the request message, judge called whether in cluster network, if, execution in step 804; Otherwise, execution in step 806.
Step 804: the clustering switch of caller ownership is to called transmission setup requests.
Step 805: after called the receiving, the clustering switch and the POC server that belong to by caller return the call setup response to caller, and this flow process finishes.
Step 806: whether the clustering switch of caller ownership is judged called in the POC network, if, execution in step 807; Otherwise by the newly-increased interface of communicating by letter with POC server, the notice POC server sends call rejection message to caller, and this flow process finishes.
The PTT endpoint registration is on POC server the time, and POC server is by the newly-increased interface of communicating by letter with clustering switch, and the notice clustering switch is at the PTT termination number of self registration, and clustering switch receives that the back preserves this number.
Step 807: the clustering switch of caller ownership returns to POC server by the newly-increased interface of communicating by letter with POC server with setup requests.
After step 808:POC server is received, to called transmission setup requests.
Step 809: after called the receiving, return the call setup response to caller by POC server.
Fig. 9 carries out the flow chart of the specific embodiment four that PTT calls out for PTT terminal provided by the invention at the POC network, and as shown in Figure 9, concrete steps are as follows:
Step 901:PTT terminal is determined currently self not to be in cluster network but to be in the POC network, as the interface of caller by communicating by letter with POC server, with the request of setting up that makes a call of POC signaling format.Carry the calling and called number in the request message.
Step 902:POC server receives this request, according to the calling number in the request message, by the newly-increased interface of communicating by letter with clustering switch, will call out the clustering switch that directly is transmitted to the caller ownership.
Step 903: after the clustering switch of caller ownership is received, according to the called number in the request message, judge called whether in cluster network, if, execution in step 904; Otherwise, execution in step 906.
Step 904: the clustering switch of caller ownership is to called transmission setup requests.
Step 905: after called the receiving, the clustering switch and the POC server that belong to by caller return the call setup response to caller, and this flow process finishes.
Step 906: the clustering switch of caller ownership returns to POC server by the newly-increased interface of communicating by letter with POC server with setup requests.
The PTT endpoint registration is on POC server the time, and POC server does not notify clustering switch at the PTT termination number of self registration.
After step 907:POC server is received, according to the called number in the message related to calls, judge called whether in the POC network, if, execution in step 908; Otherwise, sending call rejection message to caller, this flow process finishes.
Step 908:POC server is to called transmission setup requests.
Step 909: after called the receiving, return the call setup response to caller by POC server.
By Fig. 4～5 and Fig. 7～9 as can be seen owing to can communicate between clustering switch and the POC server, so, no matter called whether with caller at consolidated network, as long as called being in cluster network or the POC network, this business all can be successful.
It is worthy of note that what more than provide is to carry out the embodiment that PTT calls out, when carrying out other PTT business, the specific implementation step is identical with the step that realizes the PTT calling, only needs that the PTT calling is replaced with corresponding PTT Business Name and gets final product.
The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a method that realizes press-and-talk PTT business is characterized in that, the interface of communicating by letter with clustering switch is set on the PTT terminal, is provided with simultaneously and the interface of communicating by letter based on the professional POC server of the PTT of Cellular Networks, and this method comprises:
The PTT terminal detects current self residing network type, judge then whether current self network of living in comprises cluster network, if, interface then by communicating by letter with clustering switch, initiate the PTT business to clustering switch, clustering switch is received this business of back realization; Otherwise, judge further whether current self network of living in comprises the POC network, if then the interface by communicating by letter with POC server is initiated the PTT business to POC server, POC server receives that the back realizes this business, otherwise, this service request failure.
2. the method for claim 1 is characterized in that, the residing network type of described PTT terminal detection self is realized by following steps:
The PTT terminal receives the broadcast that carries network identity that network issues, and in the network identity of self preserving, searches the sign identical with this network identity then, if find, then judges from being in the corresponding network of this sign.
3. the method for claim 1 is characterized in that, described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in cluster network, if insert called; Otherwise, send the service request refuse information for the PTT terminal.
4. the method for claim 1 is characterized in that, sets in advance the interface that clustering switch is communicated by letter with POC server, and the POC server interface of communicating by letter with clustering switch, and,
Described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in cluster network, if insert called; Otherwise, by the interface of communicating by letter with POC server, this service request is transmitted to POC server, after POC server receives service request, the called number that carries according to request message, judge called whether in the POC network, if, insert called, otherwise, by the interface of communicating by letter with clustering switch, the notice clustering switch sends the service request refuse information for the PTT terminal.
5. the method for claim 1 is characterized in that, sets in advance the interface that clustering switch is communicated by letter with POC server, and the POC server interface of communicating by letter with clustering switch, and,
Described method further comprises: the interface of POC server by communicating by letter with clustering switch, will be at the number notifying clustering switch of the PTT terminal of self registering, and clustering switch is received this number of back preservation, and,
Described clustering switch realizes that the concrete steps of PTT business are:
Whether clustering switch receives the PTT service request that the PTT terminal is initiated, according to the called number that this request message carries, judge called in cluster network, if insert called; Otherwise, according to called number and self preserve at the PTT termination number of POC server registration, judge called whether in the POC network, if by the interface of communicating by letter with POC server, the notice POC server inserts called, otherwise, send the service request refuse information for the PTT terminal.
6. as claim 1 or 3 described methods, it is characterized in that described POC server realizes that the concrete steps of PTT business are:
Whether POC server receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in the POC network, if insert called; Otherwise, send the service request refuse information for the PTT terminal.
7. the method for claim 1 is characterized in that, sets in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server, and,
Described POC server is preserved the number of the PTT terminal that belongs to different clustering switch in advance, and,
Described POC server realizes that the concrete steps of PTT business are:
Whether POC server receives the PTT service request that the PTT terminal is initiated, according to the called number that request message carries, judge called in the POC network, if insert called; Otherwise, by the interface of communicating by letter with clustering switch, service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, judge called whether in cluster network, if, insert called, otherwise by the interface of communicating by letter with POC server, the notice POC server sends the service request refuse information for the PTT terminal.
8. the method for claim 1 is characterized in that, sets in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server, and,
Described POC server is preserved the corresponding relation of the clustering switch of PTT terminal and its ownership in advance, and, described method further comprises: POC server will be at the interface of number by communicating by letter of the PTT terminal of self registration with clustering switch, the notice clustering switch, clustering switch is received this number of back preservation, and
Described POC server realizes that the concrete steps of PTT business are:
After POC server receives the PTT service request of PTT terminal initiation, by the interface of communicating by letter with clustering switch, directly service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, according to the called number in the request message, judge called whether in cluster network, if insert called; Otherwise, according to called number and the PTT termination number of self having preserved in the POC server registration, judge called whether in the POC network, if, by the interface of communicating by letter with POC server, the notice POC server inserts called, otherwise, by the interface of communicating by letter with POC server, the notice POC server sends the service request refuse information for the PTT terminal.
9. the method for claim 1 is characterized in that, sets in advance the interface that POC server is communicated by letter with clustering switch, and the clustering switch interface of communicating by letter with POC server,
Described POC server is preserved the corresponding relation of the clustering switch of PTT terminal and its ownership in advance, and described method further comprises: the PTT terminal is registered self number on POC server, and clustering switch is not received the number of the registered PTT terminal that POC server sends, and
Described POC server realizes that the concrete steps of PTT business are:
After POC server receives the PTT service request of PTT terminal initiation, by the interface of communicating by letter with clustering switch, directly service request is transmitted to the clustering switch of caller ownership, after the clustering switch of caller ownership receives service request, the called number that carries according to request message, judge called whether in cluster network, if insert called; Otherwise, with the interface of service request, return to POC server by communicating by letter with POC server, after POC server receives service request, judge called whether in the POC network, if, insert called, otherwise, send the service request refuse information for the PTT terminal.
10. a system that realizes press-and-talk PTT business is characterized in that, comprising: have simultaneously with the clustering switch communication interface and with PTT terminal based on the professional POC server communication interface of the PTT of Cellular Networks, clustering switch and POC server, wherein,
PTT terminal: when detecting current self network of living in and comprising cluster network,, send the PTT service request to clustering switch by the interface of communicating by letter with clustering switch; Detect that current self network of living in does not comprise cluster network but when comprising the POC network,, send the PTT service request to POC server by the interface of communicating by letter with POC server; Be used for the interface of communicating by letter simultaneously, receive the PTT service request that clustering switch sends by with clustering switch, or the interface by communicating by letter with POC server, the PTT service request that POC server sends received;
Clustering switch: be used to receive the PTT service request that the PTT terminal is sent, or send the PTT service request to the PTT terminal;
POC server: be used to receive the PTT service request that the PTT terminal is sent, or send the PTT service request to the PTT terminal.
11. system as claimed in claim 10 is characterized in that, the interface that described PTT terminal is communicated by letter with clustering switch is supported trunking signal, and the interface that described PTT terminal is communicated by letter with POC server is supported the POC signaling.
12. system as claimed in claim 10 is characterized in that, described clustering switch also includes the interface of communicating by letter with POC server, and described POC server also includes the interface of communicating by letter with clustering switch, and,
The interface of described clustering switch by communicating by letter with POC server receives the PTT service request that POC server sends, or the interface by communicating by letter with POC server, sends the PTT service request to POC server;
The interface of described POC server by communicating by letter with clustering switch receives the PTT service request that clustering switch sends, or the interface by communicating by letter with clustering switch, sends the PTT service request to clustering switch.
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| US20040032843A1 (en) * | 2002-08-15 | 2004-02-19 | Schaefer Bradley R. | Push-to-talk/cellular networking system |
| WO2004098094A1 (en) * | 2003-04-30 | 2004-11-11 | Samsung Electronics Co. Ltd. | Call setup method and system for push-to-talk service in a cellular mobile communication system |
| CN1592429A (en) * | 2003-08-27 | 2005-03-09 | 华为技术有限公司 | Method for controlling reverse service channel in digital honeycomb cluster system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040032843A1 (en) * | 2002-08-15 | 2004-02-19 | Schaefer Bradley R. | Push-to-talk/cellular networking system |
| WO2004098094A1 (en) * | 2003-04-30 | 2004-11-11 | Samsung Electronics Co. Ltd. | Call setup method and system for push-to-talk service in a cellular mobile communication system |
| CN1592429A (en) * | 2003-08-27 | 2005-03-09 | 华为技术有限公司 | Method for controlling reverse service channel in digital honeycomb cluster system |
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