CN100508632C - Method and system for realizing instant-press instant-speak speech service - Google Patents

Abstract

This invention discloses a method for realizing PoC service, which contains establishing a corresponded relation list between user label and PoC, when user starts calling executing following steps, 1, sending calling request message to user, 2, the calling PoC server searching said corresponded relation list according to user label information to obtain PoC server information, 3, calling PoC server sending calling request to called PoC server which establishes connection with called user to realize calling going-on. Said system includes user terminal with PoC service ability, PoC server and address server stored with corresponded relation list between PoC user label and PoC server.

Description

A kind of implementation method of instant-press instant-speak speech service and system

Technical field

The present invention relates to wireless communication field, refer to a kind of method and system of on cellular system, realizing instant-press instant-speak speech service (PoC service) especially.

Background technology

PTT (Push to Talk, PoC) is a kind of semiduplex communication technology, by communicating by function key.Comprise a lot of implementations at present, as iDEN (Integrated Digital Enhanced Network, integrated digital strengthens network) and Tetra (Terrestrial Trunked RAdio, Digital Clustering mobile communication).PoC (PTT over Cellular) is OMA (Open Mobile Alliance, the Open Mobile Alliance tissue) Ding Yi a kind of PTT business that on packet network, realizes, adopt packet voice (VoIP) and semiduplex mode, PoC service has following characteristics:

Do not need dialing when 1) conversing, pin special keys, can realize voice communication;

2) can realize multicast, a people speaks, and a plurality of people listen to simultaneously;

3) this group can define, and also can be interim definition;

4) in communication process, adopt semiduplex mode, calledly when answering, can not make a speech;

5) user is online always, and the time of setting up conversation is short, faster than dialing.

PoC service has been introduced a kind of new communication pattern, be existing mobile system and traditional voice calling system can't provide, PoC satisfy call out in real time in, accomplished the expense minimum.

The mode-definition that OMA carries out PoC service comprises as shown in Figure 1:

User with PoC capable terminal at first needs to contract with the supplier of PoC service, obtains the PoC service permission;

PoC user finds that by terminal network possesses the PoC service ability;

The PoC service that PoC user provides by supplier is set up the contact with other PoC users;

PoC user requests to make a speech by button, realizes PoC service.

According to the standard of existing OMA, when realizing PoC service, need support the network of SIP (Session Initial Protocol, initial session protocol) to realize by lower floor.Utilize to support the ability of SIP network, can realize the ability of PoC service, as: route, search, resolve, charge, compress, registration, authentication etc.

To realize PoC service in the prior art, need to adopt support the IMS system (IP MultimediaSubsystem, IP Multimedia System) of SIP,, not occur supporting the IMS system of PoC service at present because IMS system construction cost height, difficulty are big.

Summary of the invention

The invention provides a kind of implementation method and system of easy, PoC service that cost is low.

PoC service implementation method provided by the invention comprises:

Set up the mapping table of a PoC user ID and affiliated PoC server; Also comprise the following steps:

A: the calling subscriber is request of making a call of PoC server under it, calls out the called subscriber;

B: the PoC server obtains the affiliated PoC server info of called subscriber according to the described mapping table of CSI called subscriber identification information inquiry under the calling subscriber;

C: the PoC server sends to PoC server under the called subscriber with call request under the calling subscriber, sets up being connected of calling subscriber and called subscriber.

According to said method of the present invention, described mapping table is stored in the address server, and described step B comprises:

B1: the PoC server is initiated inquiry request message to described address server under the calling subscriber;

B2: address server is searched described mapping table according to CSI called subscriber identification, obtains the address information of PoC server under the called subscriber, and Query Result is returned PoC server under the calling subscriber.

Described PoC user totem information is PoC user's a international mobile subscriber identification code.

The unified resource sign that described PoC user totem information is PoC user.

The address information of described PoC server is the domain name or the IP address of PoC server.

According to said method of the present invention, if the address information returned of described address server is a domain name, the IP address that the PoC server obtains PoC server under the called subscriber under the calling subscriber by domain name analysis system then.

PoC service realization provided by the invention system comprises: have the user terminal and the PoC server of PoC service ability, also include an address server, the mapping table of storage PoC user ID and affiliated PoC server;

Described address server is according to the CSI called subscriber identification of carrying in the inquiry request message that the PoC server sends under the calling subscriber, search described mapping table, obtain the address information of PoC server under the called subscriber, and Query Result is returned PoC server under the calling subscriber;

The call request that the PoC server is initiated the calling subscriber under the calling subscriber sends to PoC server under the called subscriber, sets up being connected of calling subscriber and called subscriber.

Described address server is integrated on the PoC server, realizes Signalling exchange by internal interface and PoC server.

Described address server is independent of the PoC server.

Use said method of the present invention, can avoid building brand-new IMS system, reduced difficulty and the cost of realizing PoC service.

Description of drawings

Fig. 1 is PoC service unfolding model figure;

Fig. 2 is the schematic network structure of realization PoC service of the present invention;

Fig. 3 is the flow chart of the inventive method.

Embodiment

Below in conjunction with Figure of description method and system of the present invention is further elaborated.

PoC service implementation method provided by the invention is: at first will set up the mapping table of a PoC user ID and affiliated PoC server, storage PoC user's identification information and affiliated PoC server address information in mapping table.Mapping table can be stored in the address server, and address server provides inquiry of PoC server address and analytical capabilities.

In address server, corresponding each PoC user has a user ID, and this user ID can be PoC user's a international mobile subscriber identification code, also can be PoC user's unified resource sign (URI).

The address information of PoC server can be the IP address or the domain name of server.

Referring to Fig. 2, shown in Figure 3, call flow of the present invention is as follows:

Caller PoC user is to the affiliated PoC server request of making a call; Carry called PoC user's identification information;

The called subscriber's that caller PoC server use caller PoC user provides sign is sent inquiry request message to address server;

Address server inquires called server info under the called PoC user according to called PoC user's sign, and this information is returned caller PoC server;

If what return is the domain name of called PoC server, caller PoC server also will pass through DNS (Domain Name Server, name server) and inquire the IP address that obtains called PoC server;

Caller PoC server sends call request to called PoC server;

Called PoC server sends to called PoC user with call request, sets up session.

If the user ID of using is PoC user's unified resource sign (URI), domain name or IP address that should the pairing PoC service server of configure user URI in the address server so, address server returns service server domain name or IP address under the user by inquiring user URI; If domain name, caller PoC server is initiated query requests according to the domain name of called server to name server, and name server returns the IP address of called server, according to the address call request is transmitted then.

If the user ID of using is PoC user's international mobile subscriber identification code, so should pairing PoC server domain name of configure user identification code or IP address in the address server; Address server returns the domain name or the IP address of corresponding PoC server according to this international mobile subscriber identification code; If domain name, caller PoC server also needs to obtain by DNS the IP address of called PoC server, according to the address call request is transmitted then.

According to said method of the present invention, the invention provides a kind of PoC service and realize system, comprising: have the user terminal and the PoC server of PoC service ability, also include an address server, the mapping table of storage PoC user ID and affiliated PoC server; When calling subscriber's PoC server under it made a call request, the PoC server was initiated inquiry request message to described address server under the calling subscriber, carries CSI called subscriber identification in this inquiry request message; Address server is searched described mapping table according to CSI called subscriber identification, obtains the address information of PoC server under the called subscriber, and Query Result is returned PoC server under the calling subscriber; The PoC server sends to PoC server under the called subscriber with call request under the calling subscriber, sets up being connected of calling subscriber and called subscriber.

Wherein the PoC server is identical with PoC server architecture of the prior art, comprises following functional module: the call session processing module, with interactive module, session flow control module, routing module, user data module and the encoding and decoding speech processing module of management and group server.Because the corresponding function that each module is finished is a prior art, so do not repeat them here.

Address server can be integrated with the PoC server, and the Signalling exchange between itself and the PoC server can be realized by internal interface.Internal interface can have multiple realization, as the information by preserving in the audit memory, or obtains Query Result or the like by query messages and response message between two modules.

Address server also can be provided with separately, realizations such as the DNS of the employing proprietary protocol or the standard of use or ENUM (Telephone Number URI mapping, the mapping of telephone number and unified resource sign) agreement.

The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.

Claims (9)

1, the implementation method of a kind of instant-press instant-speak speech service PoC is characterized in that: the mapping table of setting up a PoC user ID and affiliated PoC server; Also comprise the following steps:

A: the calling subscriber is request of making a call of PoC server under it, calls out the called subscriber;

B: the PoC server obtains the affiliated PoC server info of called subscriber according to the described mapping table of CSI called subscriber identification information inquiry under the calling subscriber;

C: the PoC server sends to PoC server under the called subscriber with call request under the calling subscriber, sets up being connected of calling subscriber and called subscriber.

2, the method for claim 1 is characterized in that: described mapping table is stored in the address server, and described step B comprises:

B1: the PoC server is initiated inquiry request message to described address server under the calling subscriber;

B2: address server is searched described mapping table according to CSI called subscriber identification, obtains the address information of PoC server under the called subscriber, and Query Result is returned PoC server under the calling subscriber.

3, method as claimed in claim 2 is characterized in that: described PoC user ID is PoC user's a international mobile subscriber identification code.

4, method as claimed in claim 2 is characterized in that: the unified resource sign that described PoC user ID is PoC user.

5, as claim 3 or 4 described methods, it is characterized in that: the address information of described PoC server is the domain name or the IP address of PoC server.

6, method as claimed in claim 5 is characterized in that: if the address information returned of described address server is a domain name, and the IP address that the PoC server obtains PoC server under the called subscriber under the calling subscriber by domain name analysis system then.

7, a kind of instant-press instant-speak speech service PoC realizes system, comprises user terminal and PoC server with PoC service ability, it is characterized in that also including an address server, the mapping table of storage PoC user ID and affiliated PoC server;

Described address server is according to the CSI called subscriber identification of carrying in the inquiry request message that the PoC server sends under the calling subscriber, search described mapping table, obtain the address information of PoC server under the called subscriber, and Query Result is returned PoC server under the calling subscriber;

The call request that the PoC server is initiated the calling subscriber under the calling subscriber sends to PoC server under the called subscriber, sets up being connected of calling subscriber and called subscriber.

8, system as claimed in claim 7 is characterized in that: described address server is integrated on the PoC server, realizes Signalling exchange by internal interface and PoC server.

9, system as claimed in claim 7 is characterized in that: described address server is independent of the PoC server.

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