CN111327579B

CN111327579B - Method and equipment for judging user call state

Info

Publication number: CN111327579B
Application number: CN201811543949.0A
Authority: CN
Inventors: 李本亮
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Beijing Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Beijing Co Ltd
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2022-05-13
Anticipated expiration: 2038-12-17
Also published as: CN111327579A

Abstract

The invention discloses a method and equipment for judging a user call state, which relate to the technical field of wireless communication and are used for solving the problems that an HSS (home subscriber server) needs to be queried or an IFC needs to be newly added in real time when the VOLTE user call state is judged, and the system load is higher, wherein the method comprises the following steps: the signaling monitoring server acquires a ringing message and an internet protocol IP address of at least one IMS network element for signaling interaction from a called signaling transmitted between IMS network elements of a network protocol multimedia subsystem technology; and after the signaling monitoring server determines that the called user is in a ringing state according to the ringing message, the signaling monitoring server sends the IP address to the incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address. The invention can monitor the IMS signaling in real time and send the information for judging the call state in the signaling to the call reminding server, so that the call reminding server can directly judge, and the load of an IMS system is reduced.

Description

Method and equipment for judging user call state

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for determining a user call state.

Background

An IMS (Internet Protocol Multimedia Subsystem) network is an open system based on IP bearers and providing various Multimedia services to users. VOLTE (Voice over Long Term Evolution ) is an IMS-based Voice service. It is an IP data transmission technology, and does not need the 2G (the second Generation mobile communication technology) or 3G network, and all services are carried on the 4G network, so that the unification of data and voice services under the same network can be realized. In other words, the 4G network not only provides high-rate data services, but also provides high-quality audio/video calls, and the latter requires VOLTE technology to implement.

The flash is a special short message service, the flash is sent, the opposite side does not need to open after receiving the flash, the information content is directly displayed on the screen of the mobile phone of the receiving side, the information is generally not automatically stored after being read, and only part of the information supports manual storage. USSD (Unstructured Supplementary Service Data) is a novel real-time online interactive session Data Service based on a GSM (Global System for Mobile Communication) network. At present, the method is mainly applied to personal color printing, harassing call prompting and enterprise color printing services, and can realize functions of rapidly issuing business card information, harassing call prompting information and the like. In a call state, a VOLTE user may cause call interruption if receiving USSD information and the user may not see USSD information, so the system generally needs to determine whether the user is in the VOLTE call state before issuing USSD information, if yes, a flash message is issued, and if not, USSD is issued.

In the prior art, there are two ways to determine whether a VOLTE user is in a VOLTE state for a call before sending an incoming call reminding message to the VOLTE user, one way is to use an AS (Application Server) to query a user call state to a HSS (Home Subscriber Server) in real time during each call, and this way consumes a lot of system resources and takes a long time for the query.

The other is a special IFC mode or a mode for monitoring the signaling of the color ring back tone platform, wherein the special IFC mode needs to add a new AS network element in an IMS core network, and the new IFC needs to be opened in advance for a user registering the reminding service, so that the load of the system is increased; the mode of monitoring the signaling of the color ring platform needs to provide a new IFC for the reminding user to sign the VOLTE color ring, needs to provide a new IFC for the non-color ring user registering the reminding service in advance, and also increases the load of the VOLTE color ring platform.

In summary, in the prior art, when determining whether the VOLTE user is in the VOLTE state, the user call state needs to be queried in the HSS in real time or a dedicated IFC needs to be newly added during each call, which increases the load of the system.

Disclosure of Invention

The invention provides a method and equipment for judging a user call state, which are used for solving the problem that the load of a system is increased because the user call state needs to be inquired in a HSS (home subscriber server) or a special IFC (enhanced subscriber identity module) is newly added when the user is judged to be in a VOLTE (voice over long term evolution) state in each call in the prior art.

In a first aspect, a method for determining a user call state provided in an embodiment of the present invention includes:

the signaling monitoring server acquires a ringing message and an internet protocol IP address of at least one IMS network element for signaling interaction from a called signaling transmitted between IMS network elements of a network protocol multimedia subsystem technology;

and after determining that the called user is in a ringing state according to the ringing message, the signaling monitoring server sends the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

The method comprises the steps of monitoring the signaling of the IMS system through the signaling monitoring server, monitoring the called signaling in real time when a VOLTE user is called, further acquiring the IP address of an IMS network element which is used for judging the call state of the user and carries out signaling interaction from the called signaling, sending the IP address to the incoming call information reminding server after the called user is determined to be in the ringing state according to the ringing message so that the incoming call information reminding server determines the call state of the called user according to the IP address, directly monitoring the information used for judging the call state of the user in the process of calling the user through the signaling monitoring mode, directly sending the required judgment information to the incoming call reminding server in the data transmission process of the signaling monitoring server and the incoming call reminding server, and not needing to inquire the call state of the user by the HSS during each call, and a special IFC and AS network element is not required to be newly added, so that the load of the system is reduced.

In one possible implementation, the method further includes:

the signaling monitoring server acquires the called information of the called user from the called signaling transmitted between the IMS network elements and sends the called information to the signaling monitoring server, so that the signaling monitoring server judges whether the calling user or the called user is an incoming call reminding registered user or not according to the called information.

According to the method, the signaling monitoring server is adopted to monitor the signaling of the IMS system, the called information of the called user is directly obtained in real time in the monitored signaling, the IFC is not required to be preset for the called user, a special AS is not required, the IFC and the AS are in one-to-one correspondence, the effect is good, and the load of the system is reduced.

In a possible implementation manner, the signaling monitoring server obtains the called signaling transmitted between the IMS network elements by the following method:

and the signaling monitoring server monitors the signaling link between the IMS network elements through a splitter or a splitter TAP, and determines the called signaling in the signaling transmitted by the signaling link between the IMS network elements.

In the method, the optical splitter is used for splitting a signaling link (network cable) between the IMS network elements for monitoring, so that the signaling transmitted between the IMS network elements is transmitted to the signaling monitoring server, and the signaling monitoring server analyzes the signaling of all the signaling links between the IMS network elements to determine the called signaling.

In a second aspect, a method for determining a call state of a user provided in an embodiment of the present invention includes:

the incoming call information reminding server receives at least one IP address sent by the signaling monitoring server;

the incoming call information reminding server determines an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element;

and the call information reminding server determines the call state of the called user according to the IMS network element group.

According to the method, the call information reminding server stores the information of the IMS network element related to the call state of the user in advance, after the call information reminding server receives at least one IP address sent by the signaling monitoring server, the IMS network element group for managing the call can be determined according to IP geology, the call state of the called user is further determined according to the pre-stored information of the IMS network element related to the call state of the user, the call information reminding server does not need to inquire to the HSS in real time during each call but directly judges, and the load of the system is reduced.

In a possible implementation manner, the determining, by the incoming call information alert server, the call state of the called user according to the IMS network element group includes:

the incoming call information reminding server judges whether the IMS network element group is an IMS network element group for calling in a VOLTE call state;

if so, the call information reminding server determines that the call state of the called user is a VOLTE state;

otherwise, the call information reminding server determines that the call state of the called user is a non-VOLTE state.

According to the method, the call information reminding server stores the information of the IMS network element related to the call state of the user in advance, after the IMS network element group related to the call is determined to be managed, the call state of the called user can be determined according to the information of the IMS network element related to the call state of the user stored in advance and the determined IMS network element group for managing the call, and the network element group for managing the call in the VOLTE call state in the IMS system is different from the network element group for managing the call in the non-VOLTE call state.

In one possible implementation, the method further includes:

the call information reminding server receives the called information of the called user sent by the signaling monitoring server and judges whether the calling user or the called user is a call reminding registered user or not according to the called information;

if yes, the incoming call information reminding server determines reminding information sent to the called user according to the called information;

and the incoming call information reminding server determines a transmission path of the reminding information according to the call state of the called user and sends the reminding information to the called user through the determined transmission path.

According to the method, the incoming call information reminding server stores data of incoming call reminding registered users in advance, the signaling monitoring server sends the called information of the called users obtained through monitoring to the incoming call information reminding server, the incoming call information reminding server can compare the received data with the pre-stored data to determine whether the called users register the incoming call information reminding service or not, the reminding information can be determined according to the received called information, after the called users are determined to be the incoming call reminding registered users, the transmission path of the reminding information can be determined according to the call states of the called users, the reminding information is sent to the called users through the determined transmission path, and therefore the incoming call reminding of the called users is achieved.

In a third aspect, an apparatus for determining a call state of a user according to an embodiment of the present invention includes: a processor and a transceiver:

the processor: the system comprises a transceiver, a network protocol multimedia subsystem (IMS) network element and a network interface module, wherein the transceiver is used for acquiring a ringing message from a called signaling transmitted between IMS network elements in the network protocol multimedia subsystem technology and acquiring an Internet Protocol (IP) address of at least one IMS network element for signaling interaction; and after determining that the called user is in a ringing state according to the ringing message, sending the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

In one possible implementation, the processor is further configured to:

and acquiring the called information of the called user from the called signaling transmitted between the IMS network elements and sending the called information to the signaling monitoring server, so that the signaling monitoring server judges whether the calling user or the called user is a call reminding registered user or not according to the called information.

In a possible implementation manner, the processor is further configured to acquire called signaling transferred between the IMS network elements by:

monitoring the signaling link between the IMS network elements through an optical splitter or a splitter TAP, and determining the called signaling in the signaling transmitted by the signaling link between the IMS network elements.

In a fourth aspect, an apparatus for determining a call state of a user according to an embodiment of the present invention includes: a processor and a transceiver:

the processor: at least one IP address used for receiving the signaling and monitoring the server and sending by the transceiver; determining an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element; and determining the call state of the called user according to the IMS network element group.

In one possible implementation, the processor is specifically configured to:

judging whether the IMS network element group is an IMS network element group for calling in a VOLTE call state;

if so, determining that the call state of the called user is a VOLTE state;

otherwise, determining the call state of the called user as a non-VOLTE state.

In one possible implementation, the processor is further configured to:

receiving called information of the called user sent by the signaling monitoring server and judging whether the calling user or the called user is an incoming call reminding registered user or not according to the called information;

if yes, determining reminding information sent to the called user according to the called information;

and determining a transmission path of the reminding information according to the call state of the called user, and sending the reminding information to the called user through the determined transmission path.

In a fifth aspect, an apparatus for determining a call state of a user according to an embodiment of the present invention includes: at least one processing unit and at least one storage unit, wherein the storage unit stores program code, and when the program code is executed by the processing unit, the processing unit executes the content of any one of the third and fourth aspects.

In a sixth aspect, the present application also provides a computer storage medium having a computer program stored thereon, which when executed by a processing unit, performs the steps of the method of the above aspects.

In addition, for technical effects brought by any one implementation manner of the third and fourth aspects, reference may be made to technical effects brought by different implementation manners of the first and second aspects, and details are not described here.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a system for determining a user call state according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a called user incoming call short message prompt according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a called user incoming call short message prompt according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another called user incoming call short message reminding provided in the embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a method for determining a call state of a user according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating another method for determining a call state of a user according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a system for monitoring an IMS network signaling link according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a first apparatus for determining a user call state according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a second apparatus for determining a user call state according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a third apparatus for determining a user call state according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a fourth apparatus for determining a user call state according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a complete method for determining a user call state according to an embodiment of the present invention;

fig. 13 is a schematic diagram of a complete method for sending a reminding message to a user after determining a user call state according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Some of the words that appear in the text are explained below:

1. the term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

2. The network element referred to in the embodiment of the present invention is the smallest unit that can be monitored and managed in network management, and is composed of one or more machine disks or machine frames, and can independently complete a certain transmission function.

3. The color printing referred by the embodiment of the invention is an information service product which can be customized by both a calling party and a called party and is transmitted by additional image-text contents in the conversation process. Before the voice call is connected, in the call and after the voice call is hung up, the system automatically pushes the color printing contents (text, pictures, videos and the like) preset by the user to the screen of the mobile phone of the opposite side, so that the opposite side user can see the related contents, and the purposes of showing individuality, sharing mood, transmitting business conditions and the like are achieved.

4. The optical splitter referred to in the embodiment of the present invention is an optical splitter in which data is transmitted through an optical fiber, and the optical splitter copies optical data to one for monitoring after the data is transmitted through the optical fiber, that is, the original traffic is normal, and the optical data is split into one stream for analysis and use by monitoring equipment.

5. The splitter in the embodiment of the invention is used for splitting data through network cable transmission, and the splitter separates multiple frequency band signals input on a line in a wireless communication system into a single frequency band and outputs the single frequency band to different communication lines.

6. The IFC referred by the embodiment of the invention is subscription information similar to an intelligent network service key of an IMS core network. The VOLTE mobile phone user number writes a certain IFC in the attribute of the HSS (usually, a Business Operation Support System (BOSS) of an operator initiates an IFC to the HSS), so that when the user initiates a call or receives an incoming call ringing, the IMS System will automatically go to the HSS to query the IFC of the user, and direct the call to a certain AS in the IMS System according to the IFC, and the AS performs call processing. Each IFC corresponds to an AS.

7. The SIP (Session Initiation Protocol) referred in the embodiments of the present invention is a multimedia communication Protocol established by IETF (Internet Engineering Task Force). It is a text-based application-layer control protocol for creating, modifying and releasing sessions of one or more participants. The present invention is widely applied to CS (Circuit Switched), NGN (Next Generation Network) and IMS (IP Multimedia Subsystem) networks, and can support and be applied to Multimedia services such as voice, video, data, etc., and also can be applied to special services such as Presence, Instant Message, etc. It can be said that there is an existence of the SIP protocol where there is an IP network. The signaling in the SIP protocol is SIP signaling.

The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems. In the description of the present invention, the term "plurality" means two or more unless otherwise specified.

An IP multimedia subsystem architecture comprising the following functional units: CSCF (Call Session Control Function), MGCF (media Gateway Control Function), MRFC (Multimedia Resource Function Controller), MRFP (Multimedia Resource Function Processor), SLF (Subscription Locator Function), BGCF (Breakout Gateway Control Function), AS (Application Server), SGW (signaling Gateway Function), and the like.

The AS is an application layer device located at the uppermost layer in the IMS system, and the AS network element and the CSCF interact with each other through a standard SIP (Session Initiation Protocol), thereby triggering and executing various network services.

The HSS supports the primary user database for the IMS network entities handling calls or sessions. It contains a user profile, performs authentication and authorization of the user, and may provide information about the physical location of the user. The entities with which it communicates with the HSS, similar to GSM, are Application Servers (AS) hosting and executing services in the IMS environment, and call session control function servers (CSCF). The user profile contains information about the current user and typically the S-CSCF (service-call session control function) will download and use this file when the user registers with the network.

The information that the HSS can process includes: user identification, numbering and address information; user security information, i.e. network access control information for authentication and authorization; the user positioning information, namely HSS supports user registration, storage position information and user list information.

The existing short message reminding services such as color printing, harassing call and the like use a special IFC mode or a mode of monitoring a color ring platform signaling when acquiring VOLTE user call information. The adoption of the special IFC mode needs to add a new AS network element in an IMS core network, adopt a new IFC, and need to open a new IFC in advance for a user who registers the reminding service, so that the cost is high. The mode of monitoring the signaling of the color ring platform needs to provide a new IFC for the reminding user to sign the VOLTE color ring, needs to provide a new IFC for the non-color ring user registering the reminding service in advance, and also increases the load of the VOLTE color ring platform.

And when judging whether the user is in a VOLTE state, the prior art method is a method of inquiring the user call state from the HSS in real time when the application server calls each time, and this method consumes a lot of system resources and requires a long inquiry time.

Therefore, the method and the device for judging the call state of the user in the embodiment of the invention monitor the signaling transmitted between the IMS network elements in real time through the signaling monitoring server, acquire the ringing message, the IP address of at least one IMS network element for signaling interaction and the call information of the called user in the monitored called signaling, and send the acquired IP address of at least one IMS network element for signaling interaction to the incoming call information reminding server after determining that the called user is in the ringing state according to the ringing message, so that the incoming call information reminding server judges the call state of the called user according to the received IP address without special IFC and AS or inquiring in real time to HSS, thereby reducing the load of the system.

With respect to the above scenario, the following describes an embodiment of the present invention in further detail with reference to the drawings of the specification.

As shown in fig. 1, a system for determining a call state of a user according to an embodiment of the present invention includes: a signaling monitoring server 10 and an incoming call information reminding server 20.

A signaling monitoring server 10, configured to obtain a ringing message and an internet protocol IP address of at least one IMS network element performing signaling interaction from a called signaling transmitted between IMS network elements in an IMS technology; and after determining that the called user is in a ringing state according to the ringing message, sending the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

The incoming call information reminding server 20 is used for receiving at least one IP address sent by the signaling monitoring server; determining an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element; and determining the call state of the called user according to the IMS network element group.

In the embodiment of the invention, the signaling monitoring server is used for monitoring the signaling of the IMS system, when a VOLTE user is called, the called signaling can be monitored in real time, the IP address of an IMS network element which is used for judging the call state of the user and carries out signaling interaction is further obtained from the called signaling, after the called user is determined to be in the ringing state according to the ringing message, the IP address is sent to the incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address, the information used for judging the call state of the user can be directly monitored in the process of calling the user in a signaling monitoring mode, the required judging information is directly sent to the incoming call reminding server in the process of data transmission between the signaling monitoring server and the incoming call reminding server and is directly judged by the incoming call information reminding server, and a special IFC and an AS are not required to be added, and the HSS is not required to inquire the user conversation state during each calling, so that the load of the system is reduced.

Optionally, the terminal devices corresponding to the calling subscriber and the called subscriber in the embodiment of the present invention are mobile phones.

The ringing message is obtained from a called signaling that a called user replies to the calling user after the calling user calls the called user, and the ringing message can indicate that the called user is in a ringing state.

In the embodiment of the present invention, the ringing message may be a 180 message, and the 180 message is used to indicate that the user is in a ringing state.

The called signaling in the embodiment of the present invention refers to some signaling transferred between IMS network elements in the call duration process after the calling user a calls the called user B, including but not limited to part or all of the following:

call signaling, ring signaling, SIP signaling.

For example, after the calling user calls the called user, the called user replies the called signaling of the calling user to obtain the 180 messages, and then the called user B can be determined to be in the ringing state, and if the called user B is not in the service area or is turned off, the 180 messages cannot be detected in the called signaling.

The incoming call reminding information mentioned in the embodiment of the invention is issued to the called user after the called user rings, and the reminding information does not need to be sent in other states, so the embodiment of the invention directly determines the required ringing message in the signaling transmitted between the IMS network elements of the IMS network when the calling user calls the called user in a signaling monitoring mode.

Optionally, the signaling monitoring server obtains the called signaling transmitted between the IMS network elements in the following manner:

in the first obtaining mode, the signaling monitoring server monitors the signaling link between the IMS network elements through an optical splitter, and determines the called signaling in the signaling transmitted by the signaling link between the IMS network elements.

If the signaling link between the IMS network elements adopts optical transmission, monitoring is carried out through an optical splitter, wherein the optical splitter is mainly used for splitting the signaling link (network cable) between the IMS networks to realize that the signaling transmitted between the IMS network elements is transmitted to a signaling monitoring server, so that the signaling monitoring server analyzes the monitored signaling to obtain information such as VOLTE user call information and IP addresses capable of judging the current call state of the VOLTE user.

And in the second acquisition mode, the signaling monitoring server monitors the signaling link between the IMS network elements through a TAP (Test Access Point, a splitter), and determines the called signaling in the signaling transmitted by the signaling link between the IMS network elements.

And if the signaling link between the IMS network elements adopts optical transmission, monitoring through TAP equipment.

It should be noted that, the manner in which the signaling monitoring server obtains the called signaling transmitted between the IMS network elements recited in the embodiment of the present invention is only an example, and any manner in which the signaling monitoring server obtains the called signaling transmitted between the IMS network elements is applicable to the embodiment of the present invention.

Optionally, the determining, by the incoming call information alert server, the call state of the called user according to the IMS network element group includes:

the incoming call information reminding server judges whether the IMS network element group is an IMS network element group called under the VOLTE call state;

otherwise, the incoming call information reminding server determines that the call state of the called user is a non-VOLTE state.

For example, the incoming call information reminding server stores a corresponding relationship between an IMS network element group 1 and an IMS network element group 2 and a user call state in advance, manages an IMS network element group called in a VOLTE state as the IMS network element group 1, including the IMS network element 1, the IMS network element 2, and the IMS network element group 3, and manages an IMS network element group called in a non-VOLTE state as the IMS network element group 2, including the IMS network element 4, the IMS network element 5, and the IMS network element 6.

If the incoming call information reminding server receives the IP addresses of the three IMS network elements, namely IP4, IP5 and IP6, wherein the IP4 is the IP address of the IMS network element 4, the IP5 is the IP address of the IMS network element 5, and the IP6 is the IP address of the IMS network element 6, and the corresponding IMS network element group is determined to be the IMS network element group 2 according to the IP addresses, the current call of the called user can be determined to be in a non-VOLTE state.

If the incoming call information reminding server receives the IP addresses of the three IMS network elements, namely IP1, IP2 and IP3, wherein the IP1 is the IP address of the IMS network element 1, the IP2 is the IP address of the IMS network element 2, and the IP3 is the IP address of the IMS network element 3, and the corresponding IMS network element group is determined to be the IMS network element group 1 according to the IP addresses, the current call of the called user can be determined to be in the VOLTE state.

Further, the signaling monitoring server obtains called information of the called user from the called signaling transmitted between the IMS network elements and sends the called information to the signaling monitoring server, and after receiving the called information sent by the signaling monitoring server, the incoming call information reminding server can determine whether the calling user or the called user is an incoming call reminding registered user according to the called information.

In the embodiment of the invention, the signaling monitoring server is adopted to monitor the signaling of the IMS system, the called information of the called user is directly obtained in real time in the monitored signaling, the IFC is not required to be preset for the called user, and a special AS is not required, wherein the IFC corresponds to the AS one by one, the effect is better, and the load of the system is reduced.

The called information of the called user includes, but is not limited to, part or all of the following:

called number, calling time.

If the calling user or the called user is a call reminding registered user, the call information reminding server determines reminding information sent to the called user according to the called information;

The incoming call reminding service includes, but is not limited to, part or all of the following:

harassing call prompts, enterprise color prints, enterprise business cards, personal color prints, and personal business cards.

For example, a user a calls a user B, the user B rings, wherein the user a is a calling user, the user B is a called user, in the process of the user a calling the user B, a calling-called signaling interaction is started between network elements of the IMS network, called information of the called user B is obtained by monitoring an invite (request) message in a called signaling transmitted between the network elements of the IMS network, the called information includes a called number, a calling time, and the like, and the calling number is: 01022276, called number 123456789, call time 2018, 11, 12: 00.

the incoming call information reminding server judges according to the called information, data information of a user registering the incoming call reminding service, such as the number of the registered user and the registered service thereof, is stored in the incoming call information reminding server in advance, for example, the prestored information is registered user 123456789 to register harassing call reminding service, the incoming call information reminding server determines that the called user registers harassing call reminding service by analyzing the called number in the called information, and simultaneously, a short message which is to be issued to the called user B is issued according to the matching of the calling number and the calling time, as shown in fig. 2, the number is analyzed according to the calling number and marked as express service, and a short message which is to be issued to the called user B is issued according to the matching.

If the fact that the called party does not register the incoming call reminding service is determined through judgment, the fact that reminding short messages are not needed to be sent to the called party to remind harassing call information and the like is indicated. Optionally, whether the calling user registers an incoming call information reminding service is further judged, and part of color printing or business card related services in the service send some predefined information of the registered user to the called user when the registered user calls the called user.

Supposing that the incoming call information reminding server determines that the calling user registers the personal business card service by analyzing the calling number in the called information, the main purpose is to show the business card of the calling user to the called user, as shown in fig. 3, after the calling user a calls the called user B and the called user B rings, the personal business card of the calling user a is shown to the called user B in the form of short message. The prompt information displayed in the figure is the personal business card information preset by the calling user A, and the incoming call information reminding server stores the user data for registering the personal business card service in advance, wherein the user data comprises the preset personal business card information, and the prompt information can be determined directly according to the called information.

As shown in fig. 4, in order to send the enterprise business card information to the called user B, after the calling user a calls the called user B and the called user B rings, the enterprise business card of the calling user a is displayed to the called user B in the form of a short message. The prompt information displayed in the figure is the enterprise business card information preset by the calling user a.

Optionally, the method of the embodiment of the invention is also suitable for sending the reminding short message to the calling subscriber. For example, enterprise color printing, personal color printing, enterprise business card and personal business card services are divided into two types, namely a calling side color printing service and a called side color printing service, and preset catering enterprise information is pushed to a client when the client dials a telephone of a catering enterprise, namely color printing information is pushed to a calling user, and the called user is an incoming call short message reminding user for registering the called side color printing; for the calling color printing service, when an enterprise dials the telephone of a called party, preset information is pushed to a client, marketing information is transmitted for publicity, namely color printing information is pushed to a called party, and the calling party is a calling short message reminding user for registering the called color printing.

Optionally, the incoming call information reminding server determines a transmission path of the reminding information according to the call state of the called user, and sends the reminding information to the called user through the determined transmission path.

For example, the incoming call information reminding server determines that the called user is currently in the VOLTE call state by judging, and sends the reminding information to the short message center, and the short message center sends the reminding short message to the called user B in a flash form.

If the incoming call information reminding server determines that the called user is currently in a non-VOLTE call state through judgment, the reminding information is sent to a USSD center, and a reminding short message is sent to the called user B in a USSD form by the USSD center.

Optionally, the signaling monitoring server and the incoming call alert server in the embodiment of the present invention may be integrated into a server, for example, an application server, and in this case, the signaling transmitted between the IMS network elements monitored by the optical splitter is directly sent to the application server, so that the application server obtains the ringing message in the called signaling and the internet protocol IP address, the called information, and the like of at least one IMS network element performing signaling interaction, and performs determination according to the obtained information.

The application server stores data of short message reminding registered users, judges whether a calling user and a called user are registered users according to called information, determines the calling number and time corresponding to the registered users when the registered users are called or calling, matches reminding information to be issued, determines a transmission path for reminding a short message according to the call state after judging the call state of the called user according to an IP address, and issues the matched reminding information to the called user through the determined transmission path.

As shown in fig. 5, a method for determining a call state of a user according to an embodiment of the present invention includes:

step 500: the signaling monitoring server acquires a ringing message and at least one IP address of the IMS network element for signaling interaction from a called signaling transmitted between the IMS network elements;

step 501: and after determining that the called user is in a ringing state according to the ringing message, the signaling monitoring server sends the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

Optionally, the method further includes:

As shown in fig. 6, a method for determining a call state of a user according to an embodiment of the present invention includes:

step 600: the incoming call information reminding server receives at least one IP address sent by the signaling monitoring server;

step 601: the incoming call information reminding server determines an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element;

step 602: and the call information reminding server determines the call state of the called user according to the IMS network element group.

if yes, the incoming call information reminding server determines that the call state of the called user is a VOLTE state;

Optionally, the method further includes:

Fig. 7 is a schematic diagram of a system for determining a user call state according to an embodiment of the present invention, which mainly includes a USSD center, a short message center, an incoming call information reminding server, each IMS, a signaling link, and a signaling monitoring server.

The signaling monitoring server is used for branching a signaling link (network cable) between the IMS through the TAP to realize that the signaling is sent to the signaling analysis server, and analyzing the signaling of all the signaling links between the IMS network elements.

The server screens out the calling number and time of the registered user as the called or calling party (part) through the information sent by the signaling detection server, matches the reminding information to be sent, and sends the reminding information to the USSD center or the short message center in real time.

And the short message center is connected with the incoming call information reminding server and sends the information sent by the short message center to the registered user in a flash mode.

And the USSD center is connected with the incoming call information reminding server and sends the information sent by the incoming call information reminding server to the registered user in a USSD mode.

Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a user call state, and since the device is a device in the method in the embodiment of the present invention, and a principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are omitted.

As shown in fig. 8, an embodiment of the present invention further provides an apparatus for determining a call state of a user, where the apparatus includes: processor 800 and transceiver 801:

the processor 800 is configured to: acquiring a ringing message and an Internet Protocol (IP) address of at least one IMS network element for signaling interaction from a called signaling transmitted between IMS network elements by using a transceiver 801; and after determining that the called user is in a ringing state according to the ringing message, sending the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

Optionally, the processor 800 is further configured to:

and acquiring called information of the called user from a called signaling transmitted between the IMS network elements and sending the called information to the signaling monitoring server so that the signaling monitoring server judges whether the calling user or the called user is a call reminding registered user or not according to the called information.

Optionally, the processor 800 is further configured to acquire called signaling transferred between the IMS network elements by:

As shown in fig. 9, an embodiment of the present invention further provides an apparatus for determining a call state of a user, where the apparatus includes: processor 900 and transceiver 901:

the processor 900 is configured to: receiving, by using the transceiver 901, at least one IP address sent by the signaling monitoring server; determining an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element; and determining the call state of the called user according to the IMS network element group.

Optionally, the processor 900 is specifically configured to:

if so, determining that the call state of the called user is a VOLTE state;

otherwise, determining the call state of the called user as a non-VOLTE state.

Optionally, the processor 900 is further configured to:

As shown in fig. 10, an embodiment of the present invention further provides an apparatus for determining a call state of a user, where the apparatus includes: at least one processing unit 1000, and at least one memory unit 1001, wherein the memory unit 1001 stores program code, which when executed by the processing unit 1000, causes the processing unit 1000 to perform the following processes:

acquiring a ringing message and an Internet Protocol (IP) address of at least one IMS network element for signaling interaction from a called signaling transmitted between IMS network elements in a network protocol multimedia subsystem technology; and after determining that the called user is in a ringing state according to the ringing message, sending the IP address to an incoming call information reminding server so that the incoming call information reminding server determines the call state of the called user according to the IP address.

Optionally, the processing unit 1000 is further configured to:

Optionally, the processing unit 1000 is further configured to acquire the called signaling transmitted between the IMS network elements by:

As shown in fig. 11, an embodiment of the present invention further provides an apparatus for determining a call state of a user, where the apparatus includes: at least one processing unit 1100, and at least one storage unit 1101, wherein the storage unit 1101 stores program code that, when executed by the processing unit 1100, causes the processing unit 1100 to perform the following processes:

receiving at least one IP address sent by a signaling monitoring server; determining an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element; and determining the call state of the called user according to the IMS network element group.

Optionally, the processing unit 1100 is specifically configured to:

if so, determining that the call state of the called user is a VOLTE state;

otherwise, determining the call state of the called user as a non-VOLTE state.

Optionally, the processing unit 1100 is further configured to:

As shown in fig. 12, a complete method for determining a user call state according to an embodiment of the present invention includes:

step 1200, the signaling monitoring server monitors the signaling transmitted between the IMS network elements through the optical splitter;

step 1201, the signaling monitoring server obtains the detected called information, 180 messages in the called signaling and the internet protocol IP address of at least one IMS network element for signaling interaction;

step 1202, the signaling monitoring server sends the IP address and the called information to an incoming call information reminding server after determining that the called user is in a ringing state according to 180 message analysis;

step 1203, the incoming call information reminding server receives at least one IP address and called information sent by the signaling monitoring server;

step 1204, the incoming call information reminding server determines the call state of the called user according to the IP address;

step 1205, the incoming call information reminding server determines that the called user is an incoming call reminding registered user according to the called information and then determines reminding information sent to the called user;

step 1206, the incoming call information reminding server determines a transmission path of the reminding information according to the call state of the called user, and sends the reminding information to the called user through the determined transmission path.

As shown in fig. 13, a complete method for performing incoming call short message reminding by determining a call state of a user according to an embodiment of the present invention includes:

step 1300, user A initiates a call to user B, and the call signaling reaches IMS where user B is located;

step 1301, ringing of the user B;

step 1302, the signaling monitoring server monitors the message of the calling and called number 180 and the IP address where the signaling message is located in the ringing signaling of the user B (i.e. the IP address of the network element performing signaling transmission);

step 1303, the signaling monitoring server sends the monitored messages of the calling and called numbers, the IP addresses and the like to the incoming call reminding server;

step 1304, the signaling monitoring server sends the reminding information to the short message center to send the reminding information to the user B in a flash form when judging that the user B is VOLTE communication;

step 1305, the signaling monitoring server sends the reminding information to the USSD center to send to the user B in a USSD form if the user B is judged to be a non-VOLTE call.

Among them, an MSC (Mobile Switching Center) is one of core network elements of a communication system, and is a device for providing a call transfer service and call control between a telephone and a data system. The MSC converts all calls between the mobile phone and the PSTN (Public Switched Telephone Network) and other mobile phones. The MSC completes functions such as call connection, handoff control, and radio channel management, and is also an interface device between the mobile network and a fixed network such as PSTN and ISDN (Integrated Services Digital network).

The embodiment of the present invention further provides a computer-readable non-volatile storage medium, which includes a program code, and when the program code runs on a computing terminal, the program code is configured to enable the computing terminal to execute the steps of the method for determining the user call state according to the embodiment of the present invention.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for judging a call state of a user is characterized by comprising the following steps:

the signaling monitoring server acquires ringing messages from called signaling transmitted between IMS network elements in a network protocol multimedia subsystem technology and acquires at least one Internet Protocol (IP) address of the IMS network element for signaling interaction for judging the call state of a user;

after the signaling monitoring server determines that the called user is in a ringing state according to the ringing message, the IP address is sent to an incoming call information reminding server, so that the incoming call information reminding server determines an IMS network element group corresponding to the IP address and used for signaling interaction according to the IP address, and determines the IMS network element group according to the IMS network element group to determine the call state of the called user; wherein the set of IMS network elements includes at least one IMS network element.

2. The method of claim 1, wherein the method further comprises:

3. The method according to claim 1 or 2, wherein the signaling monitoring server obtains the called signaling transferred between the IMS network elements by:

4. A method for judging a call state of a user is characterized by comprising the following steps:

the method comprises the following steps that an incoming call information reminding server receives at least one IP address sent by a signaling monitoring server, wherein the IP address is an Internet protocol IP address of at least one called signaling interaction IMS network element acquired by the signaling monitoring server from called signaling transmitted between network protocol multimedia subsystem technology IMS network elements;

the incoming call information reminding server determines an IMS network element group which is corresponding to the IP address and carries out signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element;

5. The method of claim 4, wherein the determining, by the incoming call information alert class server, the call state of the called user according to the IMS network element group comprises:

the incoming call information reminding server judges whether the IMS network element group is an IMS network element group for calling in a VOLTE (voice over long term evolution) conversation state;

6. The method of claim 4, wherein the method further comprises:

7. An apparatus for determining a call state of a user, the apparatus comprising: a processor and a transceiver:

the processor: the system comprises a transceiver, a network protocol multimedia subsystem (IMS) network element and a network protocol IP address, wherein the transceiver is used for acquiring ringing messages from called signaling transmitted between IMS network elements in the network protocol multimedia subsystem technology and acquiring at least one Internet protocol IP address of the IMS network element for signaling interaction for judging the call state of a user;

after the called user is determined to be in the ringing state according to the ringing message, the IP address is sent to an incoming call information reminding server, so that the incoming call information reminding server determines an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, and determines the IMS network element group according to the IMS network element group to determine the call state of the called user; wherein the set of IMS network elements includes at least one IMS network element.

8. The device of claim 7, wherein the processor is further configured to:

and acquiring the called information of the called user from the called signaling transmitted between the IMS network elements and sending the called information to a signaling monitoring server, so that the signaling monitoring server judges whether the calling user or the called user is an incoming call reminding registered user or not according to the called information.

9. The apparatus of claim 7 or 8, wherein the processor is further configured to obtain the called signaling passed between the IMS network elements by:

10. An apparatus for determining a call state of a user, the apparatus comprising: a processor and a transceiver:

the processor: the system comprises a transceiver, an IMS network element and a signaling monitoring server, wherein the transceiver is used for receiving at least one IP address sent by the signaling monitoring server, and the IP address is the Internet protocol IP address of at least one IMS network element for carrying out called signaling interaction, which is acquired by the signaling monitoring server from called signaling transmitted between the IMS network elements of the network protocol multimedia subsystem technology;

determining an IMS network element group which is corresponding to the IP address and performs signaling interaction according to the IP address, wherein the IMS network element group comprises at least one IMS network element; and determining the call state of the called user according to the IMS network element group.

11. The device of claim 10, wherein the processor is specifically configured to:

if so, determining that the call state of the called user is a VOLTE state;

otherwise, determining the call state of the called user as a non-VOLTE state.

12. The device of claim 10, wherein the processor is further configured to:

receiving called information of the called user sent by the signaling monitoring server and judging whether a calling user or the called user is an incoming call reminding registered user or not according to the called information;

13. An apparatus for determining a call state of a user, the apparatus comprising: at least one processing unit and at least one memory unit, wherein the memory unit stores program code which, when executed by the processing unit, causes the processing unit to perform the steps of the apparatus of any of claims 7 to 9, the steps of the apparatus of any of claims 10 to 12.

14. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3 and the steps of the method according to any one of claims 4 to 6.