CN107888547B - Method and device for realizing international roaming incoming call blocking service and application server - Google Patents
Method and device for realizing international roaming incoming call blocking service and application server Download PDFInfo
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- CN107888547B CN107888547B CN201610873058.6A CN201610873058A CN107888547B CN 107888547 B CN107888547 B CN 107888547B CN 201610873058 A CN201610873058 A CN 201610873058A CN 107888547 B CN107888547 B CN 107888547B
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Abstract
The invention provides a method, a device and an application server for realizing international roaming incoming call blocking service, wherein the method comprises the following steps: when receiving an invitation message based on a call sent by a serving CSCF, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network for the called VoLTE user signing an international roaming incoming call blocking service in the call; and rejecting the call under the condition that the called VoLTE user has international roaming. The invention realizes that the IMS network can still realize the blocking incoming call for the VoLTE user when the VoLTE user is accessed to the 2/3G network of the roaming country as a called party after the VoLTE user roams out of the home PLMN country.
Description
Technical Field
The invention relates to the technical field of Voice over LTE (long term evolution), in particular to a method and a device for realizing an international roaming incoming call blocking service and an application server.
Background
In the IMS Network, the blocking of Incoming call Barring (Barring of Incoming Calls When Roaming) for a VoLTE user refers to that When the VoLTE user roams out of a home PLMN (Public Land Mobile Network) country, an operator blocks the Incoming call Barring of the user.
As shown in fig. 1, when handling a VoLTE user as a called incoming call service, the main network elements involved in the IMS/CS core network in the home VoLTE network include: S-CSCF (Serving-Call Session Control Function), I-CSCF (Interrogating-Call Session Control Function), VoLTE AS (Application Server), HSS (Home Subscriber Server), and HLR (Home location Register). The CS network of the Visited place contains a VMSC (Visited Mobile-services Switching Center).
When a VoLTE subscriber roams internationally and accesses through 2/3G (Second/Third Generation) network in the roaming country, the VoLTE subscriber initiates a location update in the access network. The VMSC of the roaming place analyzes IMSI (International Mobile Subscriber Identity) of the VoLTE user, translates the VMSC code of the roaming place into a character string which can be identified by the HSS/HLR of the user attribution through GT (Global Title), and sends the translated VMSC code and the position information of the VoLTE user to the HSS/HLR of the VoLTE user attribution through a route. After the home HSS/HLR checks that the user has the international roaming authority, the VMSC of the roaming place where the VoLTE user is located currently is recorded, and then the subscription data of the VoLTE user is inserted into the VMSC of the currently accessed roaming place.
When a VoLTE user roams out of a home PLMN country, if the VoLTE user is registered to an IMS (IP Multimedia System) network of the home country and is called, the IMS core network of the home country can judge that the country of a visited domain is different from that of the home domain according to the visited domain information and the like carried by the user when the user registers a third party to the VoLTE AS through an S-CSCF (serving-call control function) and the user signs an incoming call blocking service during roaming, and the call is rejected.
When the VoLTE user roams out of the home PLMN country but is not registered with the home IMS core network, for example, the VoLTE user accesses a visited CS (Circuit Switching) network, and the home IMS core network cannot determine that the VoLTE user has international roaming and restricts the service when the VoLTE user is called. When the user accesses the CS network of the visited country, the IMS network of the home country does not have the registration information of the user, so that it is impossible to determine whether the user roams, and it is impossible to implement the roaming call restriction service.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method, a device and an application server for realizing the international roaming incoming call blocking service, and overcoming the defect that the prior art can not realize the incoming call blocking service during roaming for a VoLTE user which is not registered with an IMS core network of a home country.
The technical scheme adopted by the invention is that the method for realizing the international roaming incoming call blocking service comprises the following steps:
when receiving an invitation message based on a call sent by a serving CSCF, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network for the called VoLTE user signing an international roaming incoming call blocking service in the call;
and rejecting the call under the condition that the called VoLTE user has international roaming.
Further, the method further comprises: and inquiring the position of the called VoLTE user in a visited domain CS network before judging whether the called VoLTE user has international roaming.
Further, querying the location of the called VoLTE user in the visited domain CS network includes:
sending a User-Data-Request (UDR) message to an HSS (home subscriber server), so as to acquire the location information of the called VoLTE User in a CS (circuit switched) network, and receiving a User-Data-Answer (UDA) message returned by the HSS, wherein the UDA message carries the location information of the called VoLTE User in a visited domain CS network; or sending a UDR message to the HSS, so as to acquire the position information of the called VoLTE user in the CS network from the HLR through the HSS, and receiving a UDA message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the visited domain CS network; or, acquiring the position information of the called VoLTE user in the CS network from an HLR;
the position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber (Visitor Location Register Number), mscnum (Mobile-services Switching Center Number), or Cell Number Cell ID.
Further, the method further comprises: before inquiring the position of the called VoLTE user in a visited domain CS network, judging whether the called VoLTE user is registered to an IMS network of a home country;
and under the condition that the called VoLTE user is not registered to the IMS network of the home country, inquiring the position of the called VoLTE user in the CS network of the visited domain.
Further, the method further comprises:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
Further, the method further comprises:
and when receiving an invitation message based on the call sent by the serving CSCF, if the position of the called VoLTE user in the visited domain CS network is not inquired, controlling the normal connection of the call.
The invention also provides a device for realizing the international roaming incoming call blocking service, which comprises the following components:
the first judging module is used for judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network when receiving a call-based invitation message sent by a serving CSCF (call control function), and for the called VoLTE user signing an international roaming incoming call blocking service in the call;
and the execution module is used for rejecting the call under the condition that the called VoLTE user has international roaming.
Further, the apparatus further includes:
and the query module is used for querying the position of the called VoLTE user in the visited domain CS network before the first judgment module judges whether the called VoLTE user has international roaming.
Further, the query module is configured to send a user data acquisition request UDR message to the HSS, to acquire location information of the called VoLTE user in the CS network, and receive a user data acquisition response UDA message returned by the HSS, where the UDA message carries the location information of the called VoLTE user in the visited domain CS network; or sending a UDR message to the HSS, so as to acquire the position information of the called VoLTE user in the CS network from the HLR through the HSS, and receiving a UDA message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the visited domain CS network; or, acquiring the position information of the called VoLTE user in the CS network from an HLR;
the position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber, MSCNumber, or Cell number Cell ID.
Further, the apparatus further comprises:
the second judging module is used for judging whether the called VoLTE user is registered to the IMS network of the home country or not before the inquiring module inquires the position of the called VoLTE user in the visiting domain CS network from the HSS;
and under the condition that the called VoLTE user is not registered to the IMS network of the home country, calling the query module to query the HSS for the position of the called VoLTE user in the visited domain CS network.
Further, the execution module is further configured to:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
Further, the execution module is further configured to:
when receiving an invite message based on a call sent by a serving CSCF, if the location of the called VoLTE user in a visited domain CS network is not queried by the query module, controlling the call to be normally connected.
The present invention also provides an application server, comprising: a processor and a memory storing processor-executable instructions that, when executed by the processor, perform the following:
when receiving an invitation message based on a call sent by a serving CSCF, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network for the called VoLTE user signing an international roaming incoming call blocking service in the call;
and rejecting the call under the condition that the called VoLTE user has international roaming.
Further, the processor performs operations further comprising: and inquiring the position of the called VoLTE user in a visited domain CS network before judging whether the called VoLTE user has international roaming.
Further, when receiving an invite message based on a call sent by the serving CSCF, if the location of the called VoLTE user in the visited domain CS network is not queried, controlling the call to be normally connected.
By adopting the technical scheme, the invention at least has the following advantages:
according to the method, the device and the application server for realizing the international roaming incoming call blocking service, when a VoLTE user roams out of a home PLMN country and is accessed to a roaming country 2/3G network to be called, the IMS network can still realize blocking incoming calls for the user.
Drawings
Fig. 1 is a schematic diagram illustrating connection of main network elements involved in an IMS/CS core network in a VoLTE network when handling an incoming call service of a VoLTE subscriber as a called party in the prior art;
fig. 2 is a flowchart of a method for implementing an international roaming incoming call barring service according to a first embodiment of the present invention;
fig. 3 is a flowchart of a method for implementing an international roaming incoming call barring service according to a second embodiment of the present invention;
fig. 4 is a flowchart of a method for implementing an international roaming incoming call barring service according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for implementing an international roaming incoming call barring service according to a sixth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for implementing an international roaming incoming call barring service according to a seventh embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for implementing an international roaming incoming call barring service according to an eighth embodiment of the present invention;
fig. 8 is a flowchart of a scenario inter-national roaming incoming call blocking service when a location query is successful according to an eleventh embodiment of the present invention;
fig. 9 is a flowchart of a scenario of inter-national roaming incoming call blocking service when a location query is successful according to a twelfth embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
With the large-scale commercial use of VoLTE networks of operators and the continuous growth of VoLTE users, the need of VoLTE international roaming is more and more urgent, and the current mainstream VoLTE national schemes are based on IMS, involve coordination of multiple parties including visited operators, home operators and international adapters, and put forward new needs for network functions and service capabilities of operators, and are still under discussion. Before the implementation of the VoLTE international roaming, a VoLTE user can only access the CS network in a visited country, and the VoLTE AS in a home country has no user location information, so that the international roaming state of the user cannot be judged, and further, the roaming call restriction service cannot be implemented.
The embodiment of the invention provides a method for realizing the international roaming judgment and the international roaming incoming call locking service of a VoLTE user for an operator. When the VoLTE user roams out of the home PLMN country and is called after accessing the roaming country 2/3G network, the IMS network realizes the blocking of incoming calls for the user.
A first embodiment of the present invention provides a method for implementing an international roaming incoming call blocking service, AS shown in fig. 2, a process executed on a VoLTE AS side in a home country includes the following specific steps:
step S101, when receiving an invitation message based on a call sent by a serving CSCF, judging whether a called VoLTE user in the call signs an international roaming incoming call blocking service according to the position of the VoLTE user in a visited domain CS network;
step S102, rejecting the call when the called VoLTE user has international roaming.
A second embodiment of the present invention provides a method for implementing an international roaming incoming call blocking service, as shown in fig. 3, including the following specific steps:
step S201, when receiving an invite message based on a call sent by a serving CSCF, querying a location of a called VoLTE subscriber in a visited domain CS network for the called VoLTE subscriber in the call, which has signed an international roaming incoming call blocking service.
Specifically, in step S201, the location of the called VoLTE user in the visited domain CS network is queried, which includes the following two specific query modes:
in case of HSS and HLR co-located: sending a user data acquisition request (UDR) message to a combined HSS device to acquire the position information of the called VoLTE user in a CS network, and receiving a user data acquisition response (UDA) message returned by the combined HSS device and carrying the position information of the called VoLTE user in a visited domain CS network;
in case the HSS and HLR are located separately: sending a user data acquisition request (UDR) message to an HSS (home subscriber server), so as to trigger the HSS to acquire the position information of the called VoLTE user in a CS (circuit switched) network from an HLR (home location register) through an ATI (Any Time inquiry) message, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in a visited domain CS network; or, the location information of the called VoLTE user in the CS network is acquired from the HLR through the ATI message.
The position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber, MSCNumber, or Cell number Cell ID.
Step S202, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network;
step S203, rejecting the call when the called VoLTE user has international roaming.
A third embodiment of the present invention provides a method for implementing an international roaming incoming call blocking service, as shown in fig. 4, including the following specific steps:
step S301, when receiving an invite message based on a call sent by a serving CSCF, for a called VoLTE user in the call, which has signed an international roaming incoming call blocking service, judging whether the called VoLTE user is registered to an IMS network of a home country;
step S302, under the condition that the called VoLTE user is not registered to the IMS network of the home country, the position of the called VoLTE user in the visited domain CS network is inquired.
Specifically, in step S302, the location of the called VoLTE user in the visited domain CS network is queried, which includes the following two specific query modes:
in case of HSS and HLR co-located: sending a user data acquisition request (UDR) message to a combined HSS device to acquire the position information of the called VoLTE user in a CS network, and receiving a user data acquisition response (UDA) message returned by the combined HSS device and carrying the position information of the called VoLTE user in a visited domain CS network;
in case the HSS and HLR are located separately: sending a user data acquisition request (UDR) message to an HSS (home subscriber server), so as to trigger the HSS to acquire the position information of the called VoLTE user in a CS (circuit switched) network from the HLR through an ATI (information about arrival) message, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in a visited domain CS network; or, the location information of the called VoLTE user in the CS network is acquired from the HLR through the ATI message.
The position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber, MSCNumber, or Cell number Cell ID.
Step S303, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in the visited domain CS network;
step S304, rejecting the call when the called VoLTE user has international roaming.
The fourth embodiment of the present invention is a method for implementing an international roaming incoming call blocking service, and the embodiments of the present invention may add the following specific steps on the basis of the first, second, or third embodiments:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
The fifth embodiment of the present invention is a method for implementing an international roaming incoming call blocking service, and the embodiments of the present invention may add the following specific steps on the basis of the first, second, third, or fourth embodiments:
and when receiving an invitation message based on the call sent by the serving CSCF, if the position of the called VoLTE user in the visited domain CS network is not inquired, controlling the normal connection of the call.
A sixth embodiment of the present invention, which is corresponding to the first embodiment, introduces an apparatus for implementing an international roaming incoming call blocking service, as shown in fig. 5, including the following components:
a first determining module 501, configured to, when receiving a call-based invitation message sent by a serving CSCF, determine, according to a location of a VoLTE subscriber in a visited domain CS network, whether the called VoLTE subscriber has international roaming, for a called VoLTE subscriber in the call, which has signed an international roaming incoming call barring service;
an executing module 502, configured to reject the call when the called VoLTE subscriber roams internationally.
A seventh embodiment of the present invention is an apparatus for implementing an international roaming incoming call barring service, and the apparatus of this embodiment is substantially the same as the sixth embodiment, as shown in fig. 6, except that the apparatus of this embodiment further includes the following components:
an inquiring module 503, configured to inquire a location of the called VoLTE user in the visited domain CS network before the first determining module 501 determines whether the called VoLTE user roams internationally.
Specifically, the query module 503 is configured to, in a case where the HSS and the HLR are jointly configured: sending a user data acquisition request (UDR) message to a combined HSS device to acquire the position information of the called VoLTE user in a CS network, and receiving a user data acquisition response (UDA) message returned by the combined HSS device and carrying the position information of the called VoLTE user in a visited domain CS network;
in case the HSS and HLR are located separately: sending a user data acquisition request (UDR) message to an HSS (home subscriber server), so as to trigger the HSS to acquire the position information of the called VoLTE user in a CS (circuit switched) network from the HLR through an ATI (information about arrival) message, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in a visited domain CS network; or, the location information of the called VoLTE user in the CS network is acquired from the HLR through the ATI message.
The position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber, MSCNumber, or Cell number Cell ID.
An eighth embodiment of the present invention is an apparatus for implementing an international roaming incoming call barring service, and the apparatus of this embodiment is substantially the same as the seventh embodiment, as shown in fig. 7, except that the apparatus of this embodiment further includes the following components:
a second determining module 504, configured to determine whether the called VoLTE user is registered in the IMS network of the home country before the querying module 503 queries the location of the called VoLTE user in the visited domain CS network;
in case that the called VoLTE user is not registered to the IMS network of the home country, the query module 503 is invoked to query the location of the called VoLTE user in the visited domain CS network.
A ninth embodiment of the present invention is an apparatus for implementing an international roaming incoming call blocking service, and the apparatus of this embodiment is substantially the same as the sixth, seventh or eighth embodiment, except that in the apparatus of this embodiment, the execution module 502 is further configured to:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
A tenth embodiment of the present invention is an apparatus for implementing an international roaming incoming call barring service, where the apparatus of this embodiment is substantially the same as the sixth, seventh, eighth, or ninth embodiment, except that in the apparatus of this embodiment, the execution module 502 is further configured to:
when receiving the invite message based on the call sent by the serving CSCF, if the location of the called VoLTE user in the visited domain CS network is not queried by the querying module 503, the call is controlled to be normally connected.
In an eleventh embodiment of the present invention, an application server includes a processor and a memory storing instructions executable by the processor, and when the instructions are executed by the processor, the application server performs the following operations:
when receiving an invitation message based on a call sent by a serving CSCF, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network for the called VoLTE user signing an international roaming incoming call blocking service in the call;
and rejecting the call under the condition that the called VoLTE user has international roaming.
Preferably, the processor performs operations further comprising: and inquiring the position of the called VoLTE user in a visited domain CS network before judging whether the called VoLTE user has international roaming.
Further, the processor performs operations further comprising: and when receiving an invitation message based on the call sent by the serving CSCF, if the position of the called VoLTE user in the visited domain CS network is not inquired, controlling the normal connection of the call.
A twelfth embodiment of the present invention is based on the above embodiments, and an application example of the present invention is described with reference to fig. 8 to 9 by taking a case where an HSS and an HLR are combined as an example.
Firstly, introducing a scene that the query is successful when the position of a called VoLTE user in a visiting domain CS network is queried:
the precondition for the called VoLTE user to implement the incoming call blocking service in international roaming in this embodiment is as follows:
1) the VoLTE user signs a roaming incoming call blocking service;
2) the VoLTE user roams out of the home PLMN country and accesses the CS network of the visited country;
3) the VoLTE user is called;
the implementation process is as follows:
step 1, a calling user initiates a call to the VoLTE user, and an INVITE message is called and sent to an IMS network to which the VoLTE user belongs;
step 2, the called side CSCF receives the INVITE message and then forwards the INVITE message to the called side VoLTE AS;
step 3, after receiving the INVITE message, the VoLTE AS judges that the user is not registered, sends an UDR message to the HSS and acquires the position information of the user in the CS network;
step 4, the HSS returns a UDA message which carries the location information CSLocationInformation of the user in the CS network;
step 5, the VoLTE AS judges whether the user has international roaming currently according to the information in the CSLocationInformation, such AS VLRNumber or MSCNumber, and rejects the call if the user has international roaming and the user has signed the international roaming incoming call blocking service;
and 6, the VoLTE AS puts a call rejection failure tone for the calling user.
And the implementation flow is as follows:
step 1, a calling user initiates a call to the VoLTE user, and an INVITE message is called and sent to an IMS network to which the VoLTE user belongs;
step 2, the called side CSCF receives the INVITE message and then forwards the INVITE message to the called side VoLTE AS;
step 3, after receiving the INVITE message, the VoLTE AS judges that the user is unregistered and subscribes a call roaming blocking service, and then sends a UDR message to the HSS to acquire the position information of the user in the CS network;
step 4, the HSS returns a UDA message which carries the location information CSLocationInformation of the user in the CS network;
step 5, the VoLTE AS judges whether the user has international roaming currently according to the information in the CSLocationInformation, such AS VLRNumber or MSCNumber, and rejects the call if the user has international roaming;
and 6, the VoLTE AS puts a call rejection failure tone for the calling user.
In this scenario, the first implementation flow and the second implementation flow are substantially the same, and only the timing of determining whether the user has subscribed to the international roaming incoming call barring service is different, so both the first implementation flow and the second implementation flow can be referred to as the general flow in fig. 8.
Introducing a scene of query failure when a called VoLTE user queries the position in a visited domain CS network:
the precondition for the called VoLTE user to realize the incoming call blocking service in international roaming is as follows:
the VoLTE user signs a roaming incoming call blocking service;
the VoLTE user roams out of the home PLMN country and accesses the CS network of the visited country;
the VoLTE user is called;
as shown in fig. 9, the implementation flow is as follows:
step 1: a calling user initiates a call to the VoLTE user, and an INVITE message is called and sent to an IMS network to which the VoLTE user belongs;
step 2: the called side CSCF receives the INVITE message and then forwards the INVITE message to the called side VoLTE AS;
and step 3: after receiving the INVITE message, the VoLTE AS judges that the user is unregistered and/or signs a call roaming blocking service, and then sends an UDR message to the HSS to acquire the position information of the user in the CS network;
and 4, step 4: the UDA message sent by the HSS does not return user location information;
and 5: and the VoLTE AS continues the subsequent flow processing, namely controlling the normal connection of the call.
In the above flow, triggering query condition matching means: after receiving the INVITE message, the VoLTE AS judges that the user is not registered, and initiates user position information query to the HSS; furthermore, after determining that the user is unregistered, the VoLTE AS may determine whether the user signs a subscription to the international roaming incoming call blocking service, if so, initiate an inquiry of user location information to the HSS, and if not, may not perform the inquiry.
The user position information acquisition mode comprises the following steps: VoLTE AS sends a User-Data-Request (UDR) message to HSS to acquire the position information of a User in a CS network, and the HSS returns a UDA (User-Data-Answer) message which carries the position information CSlocationinformation of the User in the CS network;
the matching of the call restriction conditions means that: the VoLTE AS judges whether the user has international roaming currently according to the information in the CSLocationInformation, such AS VLRNumber (Visitor Location Register Number) or mscumber (Mobile-services Switching Center Number), and if the user has international roaming, and the user has signed an international roaming incoming call blocking service, rejects the call; if the international roaming is adopted, but the user does not sign the international roaming incoming call blocking service, the call is not rejected, and the subsequent flow processing is continued.
In addition, when the triggering query condition matching is a further mode, namely after the VoLTE AS judges that the user is not registered, whether the user signs the international roaming incoming call blocking service is judged, when the call limiting condition is matched, whether the user signs the international roaming incoming call blocking service is not required to be judged, when the user is judged to have the international roaming, the call is rejected, otherwise, the call is not rejected, and the subsequent flow processing is continued.
A thirteenth embodiment of the present invention is that a service implementation process of an application server in this embodiment on a called subscriber who subscribes to an incoming call lockout service during roaming is the same as that in the first, second, third, fourth, or fifth embodiment, except that, in terms of engineering implementation, this embodiment may be implemented by software plus a necessary universal hardware platform, and certainly may also be implemented by hardware, but the former is a better implementation in many cases. With this understanding in mind, the method of the present invention may be embodied in the form of a computer software product stored on a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and including instructions for causing a device (e.g., an application server, etc.) to perform the method of the present invention.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention.
Claims (12)
1. A method for implementing international roaming incoming call blocking service is characterized in that the method is applied to an AS server, and comprises the following steps:
when receiving an invitation message based on a call sent by a serving call session control function module (CSCF), inquiring the position of a VoLTE user in a visited domain Circuit Switching (CS) network and judging whether the called VoLTE user has international roaming or not for the called VoLTE user which signs the international roaming call-in blocking service in the call;
inquiring the position of the called VoLTE user in the visited domain CS network, wherein the position comprises the following steps:
under the condition that the HSS and the HLR are combined, sending a user data acquisition request (UDR) message to the HSS to acquire the position information of the called VoLTE user in the CS network, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the visited domain CS network; or, under the condition that the HSS and the HLR are separately arranged, sending a UDR message to the HSS, so as to acquire the position information of the called VoLTE user in the CS network from the HLR through the HSS, and receiving a UDA message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the CS network of the visited domain;
and rejecting the call under the condition that the called VoLTE user has international roaming.
2. The method for implementing the international roaming incoming call blocking service of claim 1,
the position information of the called VoLTE user in the visited domain CS network comprises the following steps: the visitor location register number VLRNumber, the mobile switching center number MSCNumber, or the Cell number Cell ID.
3. The method for implementing the international roaming incoming call blocking service according to claim 1, wherein the method further comprises: before inquiring the position of the called VoLTE user in a visited domain CS network, judging whether the called VoLTE user is registered to an IMS network of a home country;
and under the condition that the called VoLTE user is not registered to the IMS network of the home country, inquiring the position of the called VoLTE user in the CS network of the visited domain.
4. The method for implementing the international roaming incoming call blocking service according to claim 1, further comprising:
and when receiving an invitation message based on the call sent by the serving CSCF, if the position of the called VoLTE user in the visited domain CS network is not inquired, controlling the normal connection of the call.
5. The method for implementing the international roaming incoming call blocking service according to any one of claims 1 to 4, wherein the method further comprises:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
6. An apparatus for implementing an international roaming incoming call blocking service, comprising:
the first judging module is used for judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network when receiving a call-based invitation message sent by a serving CSCF (call control function), and for the called VoLTE user signing an international roaming incoming call blocking service in the call;
the execution module is used for rejecting the call under the condition that the called VoLTE user has international roaming;
the device, still include:
the query module is used for querying the position of the called VoLTE user in the visited domain CS network before the first judgment module judges whether the called VoLTE user has international roaming;
the query module is specifically configured to: under the condition that the HSS and the HLR are combined, sending a user data acquisition request (UDR) message to the HSS to acquire the position information of the called VoLTE user in the CS network, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the visited domain CS network; or, under the condition that the HSS and the HLR are separately arranged, sending a UDR message to the HSS, so as to obtain the location information of the called VoLTE user in the CS network from the HLR through the HSS, and receiving a UDA message returned by the HSS, where the UDA message carries the location information of the called VoLTE user in the CS network in the visited domain.
7. The apparatus for implementing an international roaming incoming call blocking service as claimed in claim 6,
the position information of the called VoLTE user in the visited domain CS network comprises the following steps: VLRNumber, MSCNumber, or Cell ID.
8. The apparatus for implementing the international roaming incoming call blocking service of claim 6, wherein the apparatus further comprises:
the second judging module is used for judging whether the called VoLTE user is registered to the IMS network of the home country or not before the position of the called VoLTE user in the visited domain CS network is inquired by the inquiring module;
and under the condition that the called VoLTE user is not registered in the IMS network of the home country, calling the query module to query the position of the called VoLTE user in the CS network of the visited domain.
9. The apparatus for implementing an international roaming incoming call blocking service according to claim 6, wherein the executing module is further configured to:
when receiving an invite message based on a call sent by a serving CSCF, if the location of the called VoLTE user in a visited domain CS network is not queried by the query module, controlling the call to be normally connected.
10. The apparatus for implementing an international roaming incoming call blocking service according to any one of claims 6 to 9, wherein the executing module is further configured to:
when receiving an invitation message based on a call sent by a serving CSCF, controlling the call to be normally connected under the condition that the called VoLTE user not signing the international roaming incoming call blocking service in the call is subjected to international roaming for the called VoLTE user not signing the international roaming incoming call blocking service.
11. An application server, comprising: a processor and a memory storing processor-executable instructions that, when executed by the processor, perform the following:
when receiving an invitation message based on a call sent by a serving CSCF, judging whether the called VoLTE user has international roaming according to the position of the VoLTE user in a visited domain CS network for the called VoLTE user signing an international roaming incoming call blocking service in the call;
rejecting the call when the called VoLTE user is roaming internationally;
the processor performs operations further comprising: before judging whether the called VoLTE user has international roaming, inquiring the position of the called VoLTE user in a visited domain CS network;
inquiring the position of the called VoLTE user in the visited domain CS network, wherein the position comprises the following steps:
under the condition that the HSS and the HLR are combined, sending a user data acquisition request (UDR) message to the HSS to acquire the position information of the called VoLTE user in the CS network, and receiving a user data acquisition response (UDA) message returned by the HSS, wherein the UDA message carries the position information of the called VoLTE user in the visited domain CS network; or, under the condition that the HSS and the HLR are separately arranged, sending a UDR message to the HSS, so as to obtain the location information of the called VoLTE user in the CS network from the HLR through the HSS, and receiving a UDA message returned by the HSS, where the UDA message carries the location information of the called VoLTE user in the CS network in the visited domain.
12. The application server of claim 11, wherein when receiving the call-based invite message sent by the serving CSCF, if the location of the called VoLTE subscriber in the visited CS network is not queried, the call is controlled to continue normally.
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