CN109600391B - Group user number portability communication method and media gateway control function entity - Google Patents
Group user number portability communication method and media gateway control function entity Download PDFInfo
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Abstract
The embodiment of the invention relates to a group user number portability communication method, a media gateway control function entity, a gateway mobile switching center and a service control server, wherein the method comprises the following steps: the technical scheme includes that a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party are responded, an inquiry request carrying a name authority pointer record for inquiring the called number is sent to a telephone number mapping server, a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the inquiry request is received, a call session control function entity of the called party is determined according to the uniform resource identifier, a target call request is generated according to the call invitation message and the identity identification information, and the target call request is sent to the call session control function entity of the called party.
Description
Technical Field
The invention belongs to the technical field of number portability communication, and particularly relates to a group user number portability communication method, a media gateway control function entity, a gateway mobile switching center and a service control server.
Background
With the development of science and technology, terminals (such as mobile phones and the like) become essential articles in life of people. And along with the continuous improvement of the living quality of people, higher requirements are made on the consumption experience.
Mobile virtual private network services provide a logical private network to certain enterprises, groups, etc. Only one user is allowed to join a short number group network. In the prior art, network operators (Unicom, Mobile, Telecommunications) implement a number portability policy to enhance the consumer experience of people. However, this makes operators not only need to perform technical preparation, database construction, and network modification, add corresponding devices, expand and modify existing devices, but also need to solve the problems of charging, number inquiry, and some management, and these technical implementation all require huge investment and also require a certain amount of time. Although the original trust department requires mobile operators to implement the policy of 'take a number and transfer a package of food', operators in various regions have certain difficulty due to large difference of capability of a support system, and fusion of different charging and operation analysis systems, so that a schedule for comprehensively implementing the policy by many operators is greatly delayed. And because of the huge number of mobile phone users in China, the implementation of number portability will put higher requirements on the performance of the user information database.
Therefore, how to ensure the normal communication of the user becomes a technical problem to be solved urgently at present.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a group user number portability communication method, a media gateway control function entity, a gateway mobile switching center, and a service control server, aiming at the above disadvantages in the prior art.
According to an aspect of the embodiments of the present invention, an embodiment of the present invention provides a group user number portability communication method, when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method includes the steps of:
responding to a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party, and sending an inquiry request carrying a name authority pointer record for inquiring the called number to a telephone number mapping server;
receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a called call session control function entity according to the uniform resource identifier;
generating a target call request according to the call invitation message and the identity identification information;
and sending the target call request to the called call session control function entity.
Further, the method also comprises the following steps:
receiving a modified target call request fed back by the called call session control function entity based on the target call request, wherein the modified target call request is obtained by a service control server according to the target call request sent by the called call session control function entity and according to the configuration information displayed by the current incoming call, modifying the target call request;
and sending the modified target call request to a called user terminal corresponding to the called user.
Further, generating a target call request according to the call invitation message and the identification information specifically includes:
acquiring a calling number and an additional calling number in the identity identification information;
and modifying a FROM domain in the call invitation message based on the calling number, and modifying a PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
According to another aspect of the embodiments of the present invention, there is provided a media gateway control function entity, when a group user carrying number and changing network is called in an IMS domain, and a calling party is a group user in a CS domain, the media gateway control function entity includes: a first sending module, a first receiving module and a generating module, wherein,
the first sending module is configured to: responding to a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party, and sending an inquiry request carrying a name authority pointer record for inquiring the called number to a telephone number mapping server;
the first receiving module is configured to: receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a called call session control function entity according to the uniform resource identifier;
the generation module is configured to: generating a target call request according to the call invitation message and the identity identification information;
the first sending module is further configured to: and sending the target call request to the called call session control function entity.
Further, the first receiving module is further configured to: receiving a modified target call request fed back by the called call session control function entity based on the target call request, wherein the modified target call request is obtained by a service control server according to the target call request sent by the called call session control function entity and according to the configuration information displayed by the current incoming call, modifying the target call request;
the first sending module is further configured to: and sending the modified target call request to a called user terminal corresponding to the called user.
Further, the generating module is specifically configured to:
acquiring a calling number and an additional calling number in the identity identification information;
and modifying a FROM domain in the call invitation message based on the calling number, and modifying a PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a group user number portability communication method, where when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method includes the steps of:
sending the received call invitation message sent by the base station to a multimedia application server;
receiving identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message;
and sending the call invitation message and the identification information to a media gateway control function entity.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a gateway mobile switching center, where when a group user carrying a number and changing a network is called in an IMS domain, and a calling party is a group user in a CS domain, the gateway mobile switching center includes: a second transmitting module and a second receiving module, wherein,
the second sending module is configured to: sending the received call invitation message sent by the base station to a multimedia application server;
the second receiving module is configured to: receiving identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message;
the second sending module is further configured to: and sending the call invitation message and the identification information to a media gateway control function entity.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a group user number portability communication method, where when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method includes the steps of:
receiving a target call request sent by a called call session control function entity;
modifying the target call request according to the configuration information of the current incoming call display;
and sending the modified target call request to the called call session control function entity.
Further, the modifying the target call request according to the configuration information displayed by the current incoming call specifically includes:
when the configuration information is the short number displayed and the FROM field in the target call request is the long number, the FROM field in the target call request is modified into the short number of the calling number; or;
and when the configuration information is that the long number is displayed and the FROM domain and the PAI domain in the target call request are both short numbers, modifying both the FROM domain and the PAI domain in the target call request into the long number of the calling number.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a service control server, where when a group user carrying a number portability is called in an IMS domain, and a calling party is a group user in a CS domain, the service control server includes: a third receiving module, a modifying module, and a third sending module, wherein,
the third receiving module is configured to: receiving a target call request sent by a called call session control function entity;
the modification module is to: modifying the target call request according to the configuration information of the current incoming call display;
the third sending module is configured to: and sending the modified target call request to the called call session control function entity.
Further, the modification module is specifically configured to: when the configuration information is the short number displayed and the FROM field in the target call request is the long number, the FROM field in the target call request is modified into the short number of the calling number; or;
and in response to the configuration information being that a long number is displayed and the FROM domain and the PAI domain in the target call request are short numbers, modifying both the FROM domain and the PAI domain in the target call request into the long number of the calling number.
The invention has the beneficial effects that:
when the group user who carries number and changes network is called in IMS domain and the calling is the group user in CS domain, the communication method of carrying number and changing network for group user is realized by: the technical scheme includes that a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party are responded, an inquiry request carrying a name authority pointer record for inquiring the called number is sent to a telephone number mapping server, a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the inquiry request is received, a call session control function entity of the called party is determined according to the uniform resource identifier, a target call request is generated according to the call invitation message and the identity identification information, and the target call request is sent to the call session control function entity of the called party.
Drawings
Fig. 1 is a schematic flowchart of a communication method for number portability of group users according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a media gateway control function entity according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention;
fig. 4 is a schematic block diagram of a gateway mobile switching center according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention;
fig. 6 is a schematic block diagram of a service control server according to an embodiment of the present invention;
fig. 7 is a signaling flowchart of a communication method for group subscriber number portability provided in an embodiment of the present invention;
the attached drawings are as follows:
1. a first sending module; 2. a first receiving module; 3. a generation module; 4. a second sending module; 5. a second receiving module; 6. a third receiving module; 7. a modification module; 8. And a third sending module.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the communication method, the media gateway control function entity, the gateway mobile switching center, and the service control server for the group user number portability will be described in further detail below with reference to the accompanying drawings and the detailed description.
According to an aspect of the embodiment of the present invention, an embodiment of the present invention provides a group user number portability communication method.
Referring to fig. 1, fig. 1 is a flowchart illustrating a group user number portability communication method according to an embodiment of the present invention.
As shown in fig. 1, when the group user of number portability is called in the IMS domain and the calling party is a group user of the CS domain, the method includes:
s1: the media gateway control function entity responds to the call invitation message sent by the gateway mobile switching center and the identity identification information corresponding to the called party, and sends an inquiry request carrying a name authority pointer record for inquiring the called number to the telephone number mapping server.
When the media gateway control function entity receives a call invitation message and identity identification information corresponding to a called party sent by a gateway mobile switching center, a query request is sent to a telephone number mapping server, and the query request is a query request carrying name authority pointer records for querying the called number.
Before this step, a step of establishing a connection between the calling subscriber terminal, the base station and the gateway mobile switching center is included. Specifically, the method comprises the following steps:
when a calling user dials a called user terminal corresponding to a called user through a calling user terminal, the calling user terminal initiates a service request message to a base station, and the base station forwards the service request message to a gateway mobile switching center. The gateway mobile switching center establishes communication connection between the three based on the strategy of the operator.
After establishing communication connection, a calling user sends a call invitation message to a base station through a calling user terminal, and the base station forwards the call invitation message to a gateway mobile switching center of the calling user.
Before S1, a step of determining whether the calling number and the called number belong to the same group is further included, and the step of determining is specifically completed by the service control center of the calling. Specifically, the method comprises the following steps:
after determining the service control center of the calling party according to the call request message, the gateway mobile switching center of the calling party sends the call request message to the service control center of the calling party. And the calling service control center acquires the calling number and the called number based on the call request message and judges whether the calling number and the called number belong to the same group. When the calling number and the called number belong to the same group, the service control center of the calling sends the connection message to the gateway mobile switching center of the calling. So that the calling gateway mobile switching center performs the operation of sending the call invitation message, etc. And the calling service control center marks the call ticket corresponding to the call request message. Meanwhile, the calling service control center also sends an EEBE message (i.e. an identification event) to the calling gateway mobile switching center, sends an AC message (i.e. a call charging message) to the calling gateway mobile switching center, and sends an FCI message (a message for indicating the MSC/SSP to insert a sorting mark into a charging record) to the calling gateway mobile switching center, so that the calling gateway mobile switching center triggers the SSP (i.e. a signaling switching point) according to the AC message and the FCI message, so that the signaling switching point adds related content to the call ticket. Specifically, when belonging to the same group, the SSP performs charging processing on the call according to the corresponding call ticket record.
S2: and the media gateway control function entity receives a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determines the called call session control function entity according to the uniform resource identifier.
It can be understood that, after the telephone number mapping server receives the query request, the uniform resource identifier corresponding to the called number is fed back to the media gateway control function entity.
The uniform resource identifier carries an operator identifier and a province label, and the carried called number starts with a routing code.
S3: and the media gateway control function entity generates a target call request according to the call invitation message and the identification information.
In a possible implementation technical solution, S3 specifically includes:
s3-1: and the media gateway control function entity acquires the calling number and the additional calling number in the identity identification information.
Namely, the calling number CallingPartyNumber and the additional calling number addtionalpartynumber in the identification information are obtained.
S3-2: and the media gateway control function entity modifies the FROM domain in the call invitation message based on the calling number and modifies the PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
S4: and the media gateway control function entity sends the target call request to a called call session control function entity.
In a possible implementation solution, after S4, the method further includes the steps of:
s5: and the media gateway control function entity receives the modified target call request fed back by the called call session control function entity based on the target call request. The modified target call request is obtained by the service control server according to the target call request sent by the called call session control function entity and the configuration information displayed by the current incoming call.
S6: and the media gateway control function entity sends the modified target call request to a called user terminal corresponding to the called user.
According to another aspect of the embodiment of the present invention, an embodiment of the present invention further provides a media gateway control function entity.
Referring to fig. 2, fig. 2 is a block diagram of a media gateway control function entity according to an embodiment of the present invention.
As shown in fig. 2, when the group user of number portability is called in the IMS domain and the calling party is a group user of the CS domain, the media gateway control function entity includes: a first sending module, a first receiving module and a generating module, wherein,
the first sending module is used for: responding to a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party, and sending an inquiry request carrying a name authority pointer record for inquiring the called number to a telephone number mapping server;
the first receiving module is used for: receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a called call session control function entity according to the uniform resource identifier;
the generation module is to: generating a target call request according to the call invitation message and the identity identification information;
the first sending module is further configured to: and sending the target call request to a called call session control function entity.
In a technical solution of a possible implementation, the first receiving module is further configured to: receiving a modified target call request fed back by a called call session control function entity based on the target call request, wherein the modified target call request is obtained by a service control server according to the target call request sent by the called call session control function entity and modifying the target call request according to the configuration information displayed by the current incoming call;
the first sending module is further configured to: and sending the modified target call request to a called user terminal corresponding to the called party.
In a possible implementation technical solution, the generating module is specifically configured to:
acquiring a calling number and an additional calling number in the identity identification information;
and modifying the FROM domain in the call invitation message based on the calling number, and modifying the PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a group user number portability communication method.
Referring to fig. 3, fig. 3 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention.
As shown in fig. 3, when the group user of number portability is called in the IMS domain and the calling party is a group user of the CS domain, the method includes:
s10: and the gateway mobile switching center sends the received call invitation message sent by the base station to the multimedia application server.
Specifically, after the gateway mobile switching center receives the call invitation message, the subscription information corresponding to the calling party may be determined based on the call invitation message. The gateway mobile switching center can determine the multimedia application server corresponding to the calling according to the subscription information. The gateway mobile switching center sends a call invite message to the multimedia application server.
The multimedia application server feeds back the IMRN to the gateway mobile switching center based on the call invite message in order to anchor the call to the IMS domain. The IMRN format is that a fixed prefix is added before a called number.
S20: and the gateway mobile switching center receives the identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message.
S30: and the gateway mobile switching center sends the call invitation message and the identification information to a media gateway control function entity.
According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a gateway mobile switching center.
Referring to fig. 4, fig. 4 is a block diagram of a gateway mobile switching center according to an embodiment of the present invention.
As shown in fig. 4, when the group user of number portability is called in the IMS domain and the calling party is the group user of the CS domain, the gateway mobile switching center includes: a second transmitting module and a second receiving module, wherein,
the second sending module is used for: sending the received call invitation message sent by the base station to a multimedia application server;
the second receiving module is used for: receiving identity identification information corresponding to a called party fed back by a multimedia application server based on a call invitation message;
the second sending module is further configured to: and sending the call invitation message and the identification information to a media gateway control function entity.
According to another aspect of the embodiment of the present invention, another embodiment of the present invention further provides a group user number portability communication method.
Referring to fig. 5, fig. 5 is a flowchart illustrating a group user number portability communication method according to another embodiment of the present invention.
As shown in fig. 5, when the group user of number portability is called in the IMS domain and the calling party is a group user of the CS domain, the method includes:
s100: and the service control server receives a target call request sent by the called call session control function entity.
S200: and the service control server modifies the target call request according to the configuration information displayed by the current incoming call.
S300: and the service control server sends the modified target call request to a called call session control function entity.
Wherein, S200 specifically includes:
s200-1: when the service control server responds to the configuration information that the short number is displayed and the FROM domain in the target call request is the long number, the FROM domain in the target call request is modified into the short number of the calling number; or;
s200-2: and the service control server responds to the configuration information that the long number is displayed and both the FROM domain and the PAI domain in the target call request are short numbers, and then both the FROM domain and the PAI domain in the target call request are modified into the long number of the calling number.
In this embodiment, when the service control server receives a target call request sent by a called call session control function entity, the service control server obtains subscription information corresponding to the called party according to the target call request, and determines the service control server according to the subscription information.
Wherein, the long number is the real number, and the short number is the number in the group.
According to another aspect of the embodiment of the present invention, an embodiment of the present invention further provides a service control server.
Referring to fig. 6, fig. 6 is a schematic block diagram of a service control server according to an embodiment of the present invention.
As shown in fig. 6, when the group user of number portability is called in the IMS domain and the calling party is the group user of the CS domain, the service control server includes: a third receiving module, a modifying module, and a third sending module, wherein,
the third receiving module is configured to: receiving a target call request sent by a called call session control function entity;
the modification module is to: modifying the target call request according to the configuration information of the current incoming call display;
the third sending module is configured to: and sending the modified target call request to the called call session control function entity.
In a possible implementation technical solution, the modification module is specifically configured to: when the configuration information is the short number and the FROM field in the target call request is the long number, the FROM field in the target call request is modified into the short number of the calling number; or;
and when the configuration information is that the long number is displayed and the FROM domain and the PAI domain in the target call request are both short numbers, modifying both the FROM domain and the PAI domain in the target call request into the long number of the calling number.
After the session is established through the subsequent message interaction of 180ringing, PRACK \200OK, 200OK and the like. The call session control function entity sends a called response message 200OK to the calling user terminal, and the calling user sends a BYE message through the calling user terminal. And after receiving the BYE message, the service control point application server writes a ticket and releases the session.
In a possible technical solution, a service control server sends a UDR to a HSS to query location information of a called user:
SCP AS firstly carries out domain selection on users:
UDR AVP key parameters sent by as to HSS are as follows:
the key parameters of UDA AVP returned by HSS are as follows:
and b, inquiring user position information by the SCP AS according to the domain selection result:
the UDR AVP key parameters sent by the AS to the HSS are AS follows:
the key parameters of UDA AVP returned by HSS are as follows:
for a clearer understanding of the present embodiment, the present embodiment will now be described with reference to fig. 7. Specifically, the method comprises the following steps:
and when the gateway mobile switching center receives the call invitation message sent by the base station, executing step 1, and sending the call invitation message to the multimedia application server.
After receiving the call invitation message, the multimedia application server determines the identification information corresponding to the called number based on the call invitation message, and executes step 2, and sends the identification information corresponding to the called number to the gateway mobile switching center.
And after receiving the identity identification information, the gateway mobile switching center executes step 3 and sends the call invitation message and the identity identification information to the media gateway control function entity.
And after receiving the call invitation message and the identity identification information, the media gateway control function entity executes step 4 and sends a query request to the telephone number mapping server.
And after receiving the query request, the telephone number mapping server executes 5 and sends the uniform resource identifier corresponding to the called party to the media gateway control function entity.
And the media gateway control function entity determines the called call session control function entity according to the uniform resource identifier corresponding to the called party, executes 6 and sends the target call request to the called call session control function entity.
The called call session control function entity executes 7, sends the target call request to the called service control server.
And the called service control server modifies the target call request to obtain a modified target call request, and executes 8 and sends the modified target call request to the called call session control function entity.
The called call session control function entity executes 9 and sends the modified target call request to the media gateway control function entity.
The method for group user number portability provided by the application when the group user with number portability is called in an IMS domain and the calling party is the group user in a CS domain comprises the following steps: the technical scheme includes that a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party are responded, an inquiry request carrying a name authority pointer record for inquiring the called number is sent to a telephone number mapping server, a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the inquiry request is received, a call session control function entity of the called party is determined according to the uniform resource identifier, a target call request is generated according to the call invitation message and the identity identification information, and the target call request is sent to the call session control function entity of the called party.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (12)
1. A group user number portability communication method is characterized in that when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method comprises the following steps:
responding to a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party, and sending an inquiry request carrying a name authority pointer record for inquiring the called number to a telephone number mapping server;
receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a called call session control function entity according to the uniform resource identifier;
generating a target call request according to the call invitation message and the identity identification information;
and sending the target call request to the called call session control function entity.
2. The group subscriber number portability communication method of claim 1, further comprising the steps of:
receiving a modified target call request fed back by the called call session control function entity based on the target call request, wherein the modified target call request is obtained by a service control server according to the target call request sent by the called call session control function entity and according to the configuration information displayed by the current incoming call, modifying the target call request;
and sending the modified target call request to a called user terminal corresponding to the called user.
3. The group user number portability communication method according to claim 1 or 2, wherein generating a target call request according to the call invitation message and the identification information specifically comprises:
acquiring a calling number and an additional calling number in the identity identification information;
and modifying a FROM domain in the call invitation message based on the calling number, and modifying a PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
4. The media gateway control function entity is characterized in that when the group user of number portability is called in the IMS domain and the calling party is the group user of the CS domain, the media gateway control function entity comprises: a first sending module, a first receiving module and a generating module, wherein,
the first sending module is configured to: responding to a call invitation message sent by a gateway mobile switching center and identity identification information corresponding to a called party, and sending an inquiry request carrying a name authority pointer record for inquiring the called number to a telephone number mapping server;
the first receiving module is configured to: receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a called call session control function entity according to the uniform resource identifier;
the generation module is configured to: generating a target call request according to the call invitation message and the identity identification information;
the first sending module is further configured to: and sending the target call request to the called call session control function entity.
5. Media gateway control function according to claim 4,
the first receiving module is further configured to: receiving a modified target call request fed back by the called call session control function entity based on the target call request, wherein the modified target call request is obtained by a service control server according to the target call request sent by the called call session control function entity and according to the configuration information displayed by the current incoming call, modifying the target call request;
the first sending module is further configured to: and sending the modified target call request to a called user terminal corresponding to the called user.
6. The media gateway control function entity of claim 4 or 5, wherein the generating module is specifically configured to:
acquiring a calling number and an additional calling number in the identity identification information;
and modifying a FROM domain in the call invitation message based on the calling number, and modifying a PAI domain in the call invitation message based on the additional calling number to obtain the target call request.
7. A group user number portability communication method is characterized in that when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method comprises the following steps:
sending the received call invitation message sent by the base station to a multimedia application server;
receiving identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message;
sending the call invitation message and the identity identification information to a media gateway control function entity, so that the media gateway control function entity sends a query request carrying a name authority pointer record for querying a called number to a telephone number mapping server, receives a uniform resource identifier corresponding to a called party fed back by the telephone number mapping server based on the query request, determines the called call session control function entity according to the uniform resource identifier, generates a target call request according to the call invitation message and the identity identification information, and sends the target call request to the called call session control function entity.
8. A gateway mobile switching center, when a group user carrying a number to change network is called in an IMS domain and a calling party is a group user in a CS domain, comprising: a second transmitting module and a second receiving module, wherein,
the second sending module is configured to: sending the received call invitation message sent by the base station to a multimedia application server;
the second receiving module is configured to: receiving identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message;
the second sending module is further configured to: sending the call invitation message and the identity identification information to a media gateway control function entity, so that the media gateway control function entity sends a query request carrying a name authority pointer record for querying a called number to a telephone number mapping server, receives a uniform resource identifier corresponding to a called party fed back by the telephone number mapping server based on the query request, determines the called call session control function entity according to the uniform resource identifier, generates a target call request according to the call invitation message and the identity identification information, and sends the target call request to the called call session control function entity.
9. A group user number portability communication method is characterized in that when a group user number portability is called in an IMS domain and a calling party is a group user in a CS domain, the method comprises the following steps:
receiving a target call request sent by a called call session control function entity, wherein the target call request is that a gateway mobile switching center forwards a call invitation message sent by a base station to a multimedia application server, receives identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message, and sends the call invitation message and the identity identification information to a media gateway control function entity, the media gateway control function entity generates and sends a message to the called call session control function entity according to the call invitation message and the identity identification information, and the called call session control function entity is that the media gateway control function entity sends a query request carrying a name authority pointer record for querying a called number to a telephone number mapping server, receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a call session control function entity according to the uniform resource identifier;
modifying the target call request according to the configuration information of the current incoming call display;
and sending the modified target call request to the called call session control function entity.
10. The group subscriber number portability communication method of claim 9, wherein the modifying the target call request according to the currently displayed configuration information comprises:
when the configuration information is a short number and the FROM field in the target call request is a long number, modifying the FROM field in the target call request into the short number of the calling number; or
And in response to the configuration information being that a long number is displayed and the FROM domain and the PAI domain in the target call request are short numbers, modifying both the FROM domain and the PAI domain in the target call request into the long number of the calling number.
11. A service control server, when a group user carrying a number and switching to a network is called in an IMS domain and a calling party is a group user in a CS domain, comprising: a third receiving module, a modifying module, and a third sending module, wherein,
the third receiving module is configured to: receiving a target call request sent by a called call session control function entity, wherein the target call request is that a gateway mobile switching center forwards a call invitation message sent by a base station to a multimedia application server, receives identity identification information corresponding to the called party fed back by the multimedia application server based on the call invitation message, and sends the call invitation message and the identity identification information to a media gateway control function entity, the media gateway control function entity generates and sends a message to the called call session control function entity according to the call invitation message and the identity identification information, and the called call session control function entity is that the media gateway control function entity sends a query request carrying a name authority pointer record for querying a called number to a telephone number mapping server, receiving a uniform resource identifier corresponding to the called party and fed back by the telephone number mapping server based on the query request, and determining a call session control function entity according to the uniform resource identifier;
the modification module is to: modifying the target call request according to the configuration information of the current incoming call display;
the third sending module is configured to: and sending the modified target call request to the called call session control function entity.
12. The traffic control server according to claim 11, wherein the modification module is specifically configured to:
when the configuration information is a short number and the FROM field in the target call request is a long number, modifying the FROM field in the target call request into the short number of the calling number; or
And in response to the configuration information being that a long number is displayed and the FROM domain and the PAI domain in the target call request are short numbers, modifying both the FROM domain and the PAI domain in the target call request into the long number of the calling number.
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