CN110087229B - Wireless information subscription method, related device and system - Google Patents
Wireless information subscription method, related device and system Download PDFInfo
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- CN110087229B CN110087229B CN201810079488.XA CN201810079488A CN110087229B CN 110087229 B CN110087229 B CN 110087229B CN 201810079488 A CN201810079488 A CN 201810079488A CN 110087229 B CN110087229 B CN 110087229B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
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- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
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Abstract
The embodiment of the application provides a wireless information subscription method, related equipment and a system. The method mainly comprises the following steps: the method comprises the steps that a Call Session Control Function (CSCF) device obtains an identifier of a management function device where a user device is located, and then a wireless information subscription message is sent to the management function device through a service interface and used for subscribing wireless information of the user device, wherein the wireless information subscription message carries the identifier of the user device. The CSCF receives the wireless information of the user equipment sent by the management function device through the serving interface, so that the CSCF can provide related IMS services (e.g., IP voice services) or charging for the user equipment accessing the 5G core network according to the received wireless information.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a wireless information subscription method, a related apparatus, and a system.
Background
In a service provided by an IP Multimedia Subsystem (IMS), a Call Session Control Function (CSCF) generally needs to acquire wireless information of a User Equipment (UE), such as location information or an access network type, and provide a specific IMS service or charging for the UE according to the wireless information of the UE.
In the prior art, a method is provided in which a CSCF acquires radio information of a UE from a Packet Gateway (PGW) through a Policy and Charging Rule Function (PCRF) in a fourth generation (4rd generation, 4G) core network.
However, after the existing 4G core network evolves to a fifth generation (5G) network, the network structure and functions of the existing 4G core network are changed, and meanwhile, the UE accesses to the 5G core network (5G core,5GC) through the 5G access network, but the prior art does not provide a method for how the CSCF obtains the wireless information of the UE from the 5G core network, so that related IMS services or charging cannot be developed.
Disclosure of Invention
The embodiment of the application provides a method, a related device and a related system for acquiring wireless information of UE from a 5G core network.
In a first aspect, an embodiment of the present application provides a wireless information subscription method, which is mainly used for a call session control function device CSCF in an IP multimedia subsystem IMS, and mainly includes the following steps:
firstly, acquiring an identifier of a management function device at the location of a user device, and then sending a wireless information subscription message to the management function device through a service interface, wherein the wireless information subscription message is used for subscribing wireless information of the user device and carries the identifier of the user device. The CSCF receives the wireless information of the user equipment sent by the management function device through the serving interface, so that the CSCF can provide related IMS services (e.g., IP voice services) or charging for the user equipment accessing the 5G core network according to the received wireless information.
In a possible scheme, the CSCF may obtain the identifier of the management function device where the user equipment is located by the following method:
when the user equipment performs IMS registration, the CSCF sends an identification request message to a user data server corresponding to the user equipment through the service interface, the identification request message is used for requesting an identification of a management function device where the user equipment is located, and then the CSCF receives an identification response message returned by the user data server, wherein the identification response message carries the identification of the management function device where the user equipment is located.
In one possible solution, the identification request message sent by the CSCF may be a server allocation request message, and the identification response message may be a server allocation response message. The CCSF may add a field for identification of the management function device in the server allocation request message. The user data server carries the identification of the management function device where the user device is located in the field in the server allocation response message, thereby better utilizing the existing message flow.
In a possible scheme, after acquiring the identifier of the management function device at the location of the user equipment, the CSCF may further send an identifier subscription message to the user data server through the service interface, where the identifier subscription message is used to subscribe to an identifier update of the management function device at the location of the user equipment, and then receive a notification message returned by the user data server after the management function device at the location of the user equipment is updated, where the notification message carries the identifier of the updated management function device, so that the CSCF may obtain the identifier of the latest management function device. The scheme avoids that the CSCF frequently sends the identification request to the user data server, and reduces the signaling interaction between the CSCF and the user data server.
In one possible scenario, the CSCF is a serving call session control function device, S-CSCF.
In one possible scenario, the CSCF is a proxy call session control function device, P-CSCF. At this time, the P-CSCF may obtain the identifier of the management function device where the user equipment is located by receiving a registration success message sent by the S-CSCF, that is, the P-CSCF receives a registration success message sent by the S-CSCF in the IMS network, where the registration success message carries the identifier of the management function device where the user equipment is located.
In a possible scheme, when receiving a notification message sent by a user data server and carrying an updated identifier of a management function device, an S-CSCF sends the notification message to a P-CSCF, and the P-CSCF receives the notification message sent by the S-CSCF, wherein the notification message carries the updated identifier of the management function device. Then, the P-CSCF uses the updated identifier of the management function device to replace the identifier of the management function device carried in the registration success message, so as to facilitate the subsequent sending of the wireless information subscription message to the updated management function device.
In a possible scheme, the P-CSCF sends a registration success message to the user equipment, where the identifier of the management function device is deleted, so as to notify the user equipment that the IMS registration is successful.
In a second aspect, this embodiment provides a method for subscribing to wireless information, which is applied to a management function device in a 5G core network, and mainly includes the following steps:
the management function device receives a wireless information subscription message sent by the CSCF through a service interface, and is used for subscribing the wireless information of the user equipment, wherein the wireless information subscription message carries the identifier of the user equipment; the management function device then obtains the wireless information of the user equipment and sends the wireless information of the user equipment to the CSCF through the service interface, so that the CSCF can provide IMS service or charge for the user equipment according to the wireless information.
In one possible solution, the acquiring, by the management function device, the wireless information of the user equipment by the following method includes:
and if the management function device determines that the management function device does not manage the user device, acquiring the identifier of the management function device where the user device is currently located, and then sending the wireless information subscription message to the management function device where the user device is currently located. And finally, the management function equipment receives the wireless information of the user equipment, which is sent by the management function equipment where the user equipment is currently located. In addition, the management function device may also locally acquire wireless information of the user device.
In the scheme, the management function device acquires the wireless information of the user equipment from the management function device at the current location of the user, so that the method and the device are suitable for the situation that the management function device for managing the user equipment is updated due to the fact that the user equipment moves.
In a possible scheme, the following scheme may be adopted for the management function device to obtain the identifier of the management function device where the user equipment is currently located:
the management function device sends an identification request message to a user data server corresponding to the user device, where the identification request message is used to request an identification of the management function device where the user device is located, and then the management function device receives an identification response message sent by the user data server, where the identification carries the identification of the management function device where the user device is located. Since the user data server usually stores the identifier of the management function device where the user device is currently located, the management function device may obtain the identifier of the latest management function device of the user device from the user data server.
In a third aspect, this embodiment provides a call session control function device CSCF corresponding to the wireless information subscription method provided in the first aspect, which mainly includes:
the identification acquisition module is used for acquiring an identification of management function equipment where the user equipment is located; a wireless information subscription module, configured to send a wireless information subscription message to the management function device through a service interface, where the wireless information subscription message is used to subscribe to wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment; and the wireless information receiving module is used for receiving the wireless information of the user equipment, which is sent by the management function equipment, through the service interface.
In one possible solution, the identity obtaining module in the CSCF includes:
a sending submodule, configured to send, when the user equipment performs IMS registration, an identifier request message to a user data server corresponding to the user equipment through the service interface, where the identifier request message is used to request an identifier of a management function device where the user equipment is located; and the receiving submodule is used for receiving an identification response message returned by the user data server, wherein the identification response message carries an identification of the management function equipment where the user equipment is located.
In a possible scheme, the sending submodule in the CSCF identifier obtaining module is further configured to send an identifier subscription message to the user data server through the service interface, where the identifier subscription message is used to subscribe to identifier update of a management function device where the user equipment is located; correspondingly, the receiving submodule in the CSCF identifier obtaining module is further configured to receive a notification message returned by the user data server, where the notification message carries an identifier of the updated management function device.
In a possible scheme, the following scheme may be adopted for the identifier obtaining module in the management function device to obtain the identifier of the management function device where the user device is currently located:
an identification acquisition module in the management function device sends an identification request message to a user data server corresponding to the user device, where the identification request message is used to request an identification of the management function device where the user device is located, and then the identification acquisition module receives an identification response message sent by the user data server, where the identification is carried with the identification of the management function device where the user device is located.
In a fourth aspect, the present embodiment provides a management function device corresponding to the wireless information subscription method provided in the second aspect, which mainly includes:
a subscription receiving module, configured to receive, through a service interface, a wireless information subscription message sent by the CSCF, where the wireless information subscription message is used to subscribe to wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment; the wireless information acquisition module is used for acquiring the wireless information of the user equipment; and a wireless information sending module, configured to send the wireless information of the user equipment to the CSCF through the serving interface.
In one possible solution, the wireless information obtaining module in the management function device may include:
a determining submodule, configured to determine that the user equipment is not managed by the management function device, and obtain an identifier of the management function device where the user equipment is currently located;
the sending submodule is used for sending the wireless information subscription message to the management function equipment where the user equipment is currently located;
and the receiving submodule is used for receiving the wireless information of the user equipment, which is sent by the management function equipment where the user equipment is currently located.
In a fifth aspect, an embodiment of the present application provides a call session control function device CSCF, which may be implemented by using a general-purpose computer. The CSCF may include memory, processors, input output devices, etc. The memory stores program codes, and the processor may acquire and execute the program codes stored in the memory, so that the CSCF may execute the wireless information subscription method provided in the first aspect, where the specific execution process refers to the first aspect.
In a sixth aspect, an embodiment of the present application provides a management function device, where the management function device may be implemented by using a general-purpose computer. The management function device may include a memory, a processor, an input-output device, and the like. The processor may obtain and execute the program code stored in the memory, so that the management function device may execute the wireless information subscription method provided in the second aspect, where the specific execution process refers to the second aspect.
In a seventh aspect, an embodiment of the present application provides a communication system, which includes the CSCF described in the third aspect or the fifth aspect and the management function device described in the fourth aspect and the sixth aspect.
In an eighth aspect, an embodiment of the present application provides a storage medium, where executable code that can implement the subscription method provided in the first aspect or the second aspect is stored in the storage medium.
In an embodiment provided in any of the above aspects, the wireless information of the user equipment includes at least one of location information, access network information, and wireless connection status information of the user equipment. The management function device may include at least one of an access and mobility management function device, a session management function device, a policy control function device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are 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 without creative efforts. Wherein:
fig. 1 is a schematic networking diagram of a communication system according to an embodiment of the present application;
fig. 2 is a flowchart of a wireless information subscription method according to a second embodiment of the present application;
fig. 3 is a flowchart of a wireless information subscription method according to a third embodiment of the present application;
fig. 4 is a flowchart of a wireless information subscription method according to a fourth embodiment of the present application.
Fig. 5 is a hardware structure diagram of a CSCF provided in the fifth embodiment of the present application;
fig. 6 is a hardware configuration diagram of a management function device according to a sixth embodiment of the present application;
fig. 7 is a functional module schematic diagram of a CSCF provided in a seventh embodiment of the present application;
fig. 8 is a functional module schematic diagram of a management function device according to an eighth embodiment of the present application.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a networking of a communication system according to an embodiment of the present invention.
As shown in fig. 1, the communication system provided in this embodiment includes a user equipment UE (not shown) and a network side device. The network side equipment comprises a 5G core network 5GC and an IMS network for providing IMS service for the user equipment.
The 5GC includes a management function device for managing the user device and a unified data management device (UDM). The management function device includes an access and mobility management function device (AMF) for performing mobility management on the UE, a session management function device (SMF) for performing session (e.g., packet data unit session) management on the UE, a user plane function device (UPF) for controlling a user plane of the UE, and a policy control function device (PCF) for performing policy control on the user, and the like. In addition, the 5GC includes other devices, which is not limited in this embodiment.
The IMS network includes a CSCF and a Home Subscriber Server (HSS). The CSCF specifically includes a proxy call session control function device (P-CSCF), an inquiry session control function device (I-CSCF), and a service call session control function device (S-CSCF). The P-CSCF is the access point for the UE to connect to the IMS network and is used to forward messages between the UE and the IMS network. The S-CSCF is mainly responsible for the IMS registration process of the UE and the processing of the calling or called session related to the UE. The CSCF may also be an application function device (AF) or an Application Server (AS).
The HSS and the UDM may be collectively referred to as a user data server, and are mainly used to store user data, such as service subscription information of a user, an identifier of a management function device where the user is currently located, or authentication information of the user.
The devices P-CSCF and S-CSCF in IMS network can communicate with the devices such as AMF, SMF, UPF, PCF and UDM in 5GC through the service interface provided by 5GC, and the devices in 5GC can also communicate through the service interface. In addition, the devices P-CSCF, I-CSCF, S-CSCF in the IMS network can also communicate with HSS, UDM separately through Cx interface.
The following provides an implementation flow of the wireless information subscription method provided in this embodiment. Referring to fig. 2, fig. 2 is a flowchart of an implementation of a wireless information subscription method according to a second embodiment of the present application.
The wireless information subscription method provided in this embodiment mainly includes the following steps:
step 201, CSCF acquires the identifier of the management function device where the user equipment is located.
The CSCF may obtain an identifier of a management function device where the user equipment is located during IMS registration of the UE. The identification of the management function device may comprise an address or name of the management function device.
The management function device at the location of the user equipment may also be referred to as a management function device for managing the user equipment. These management function devices are all located in the 5 GC.
Step 202, the CSCF sends a wireless information subscription message to the management function device through the service interface, where the wireless information subscription message is used to subscribe to the wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment.
The wireless information subscription message is used for subscribing the wireless information of the user equipment to the management function equipment, so that the management function equipment returns the updated wireless information of the user equipment to the CSCF when the wireless information of the user equipment is changed. The wireless information of the user equipment comprises one or a combination of position information, access network information and wireless connection state information of the user equipment. The wireless information may also be referred to as a wireless event.
The Identity of the UE may be an address of the UE, such as an IP address of the UE, a session initiation protocol address, an International Mobile Equipment Identity (IMEI), or an Identity of the user, such as an IP Multimedia Private Identity (IMPI) or an IP multimedia public Identity (IMPU), a Mobile station Integrated Services Digital Network number (MSISDN). Thus, the identity of the UE may be in different manifestations in all embodiments provided herein, but may identify the UE. These possible alternatives are all included in the embodiments of the present application. In addition, the UE identifiers in all embodiments of the present application may carry multiple specific identifiers, for example, the called service request may carry the SIP address and MSISDN number of the UE.
Step 203, the management function device receives a wireless information subscription message sent by the CSCF through a service interface, where the wireless information subscription message is used to subscribe to the wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment.
Step 204, the management function device obtains the current wireless information of the user equipment, and sends the wireless information of the user equipment to the CSCF through the service interface.
The management function device may locally acquire current wireless information of the UE, for example, the AMF is responsible for mobility management of the UE, and may locally acquire location information, access network information, a wireless connection status, and the like of the UE. The SMF may locally obtain Packet Data Unit (PDU) session state information of the user equipment. The PCF may locally obtain control policy information or charging information, etc. of the user equipment. And after acquiring the current wireless information of the user equipment, the management function equipment sends the wireless information of the user equipment to the CSCF through the service interface.
Step 205, the CSCF receives the wireless information of the user equipment sent by the management function device through the service interface.
In this embodiment, the CSCF may provide IMS services or charge for the user equipment according to the received wireless information of the user equipment, for example, provide IP voice services for the user equipment or charge for the IP voice services according to the location information or the access network type of the user equipment.
Referring to fig. 3, fig. 3 is a flowchart of an implementation of a method for subscribing to wireless information according to a third embodiment of the present application.
The wireless information subscription method provided by the embodiment of the application mainly comprises the following steps:
step 301, the S-CSCF receives a registration request message sent by the user equipment.
The user equipment may authenticate the IMS network during IMS registration, and send a registration request message, such as a register message, to the P-CSCF after the authentication is passed. The P-CSCF forwards the registration request message to the S-CSCF.
Step 302, the S-CSCF sends an identifier request message to the user data server through the service interface, for requesting an identifier of the management function device where the UE is located.
In this embodiment, the S-CSCF obtains the identifier of the management function device where the user equipment is located by sending an identifier request message to the user data server. Specifically, the S-CSCF may authenticate the registration request message of the UE, and after the authentication is passed, send an identifier request message to the user data server, where the identifier request message is used to request an identifier of the management function device at the location (or position) of the UE.
Specifically, the S-CSCF may send a Server Assignment Request (SAR) message to the user data server to request an identifier of a management function device where the UE is located. The SAR message carries the identifier of the user equipment and a newly added AMF identifier cell, for example, an AMF address cell.
Step 303, the S-CSCF receives an identifier response message returned by the user data server, where the identifier response message carries an identifier of a management function device where the user equipment is located.
Specifically, after receiving the identifier request message sent by the S-CSCF, the user data server queries, according to the identifier of the user equipment, an identifier of a management function device in the location of the user equipment, for example, an identifier of an AMF in the location of the user equipment. After querying to obtain the identifier of the AMF, the user data server may send an identifier response message to the S-CSCF, where the identifier of the AMF is carried.
The identification response message received by the S-CSCF may specifically be a Server Assignment Answer (SAA) message, which carries an identification of a management function device where the user equipment is located.
And step 304, the S-CSCF sends a registration success message to the P-CSCF, and the registration success message carries the identification of the management function equipment.
In this embodiment, the P-CSCF obtains the identifier of the management function device where the user equipment is located by a method obtained by receiving a registration success message sent by the S-CSCF. The successful registration message received by the P-CSCF is mainly used to notify the P-CSCF that the IMS registration of the UE is successful, and the message also carries an identifier of a management function device where the UE is located. The registration success message may specifically be a 200OK message, and an AMF address cell in the 200OK message carries an identifier of the management function device.
Step 305, the P-CSCF sends a registration success message to the user equipment, where the identity of the management function device is deleted.
In this embodiment, the P-CSCF may directly forward the received registration success message to the UE, and may also delete the identifier of the management function device in the registration success message, for example, delete the AMF address cell in the 200OK message, and then send the registration success message with the identifier of the management function device deleted to the user equipment, thereby reducing the space occupied by the message and the transmission bandwidth.
In this embodiment, since the UE can move in the network, the management function device at the current location of the UE can be changed, and at this time, this embodiment of the present application may further include step 306 and step 307.
Step 306, the S-CSCF sends an identifier subscription message to the user data server through the service interface, for subscribing to identifier update of the management function device where the user equipment is located.
Specifically, the S-CSCF may send a subscribe message to the user data server to subscribe to the identifier update of the management function device in the location of the UE. The subscribe message may include an identifier of the UE and an identifier subscription cell of the new management function device, such as a new AMF address change cell and an AMF address update cell, or a new SMF address change cell and an SMF address update cell.
Step 307, the S-CSCF receives a notification message returned by the user data server, where the notification message carries the identifier of the updated management function device.
In this embodiment, after the UE moves and updates the management function device, the user data server stores the update of the management function device, and after receiving the identifier subscription message generated by the S-CSCF, the user data server returns a notification message to the S-CSCF after detecting that the identifier of the management function device where the UE is located is updated, where the notification message carries the identifier of the updated management function device.
The S-CSCF may replace (or update) the identifier of the management function device where the user equipment is located, which is carried in the identifier response message in step 303, according to the identifier of the updated management function device carried in the notification message, so that the S-CSCF may locally store the identifier of the management function device corresponding to the latest location of the UE.
In addition, the S-CSCF may also send a received notification message to the P-CSCF, where the notification message carries an identifier of the updated management function device, so that the P-CSCF receives the notification message sent by the S-CSCF, and then replaces the identifier of the management function device carried in the registration success message with the identifier of the updated management function device, so that the P-CSCF may locally store the identifier of the management function device corresponding to the latest location of the UE.
Step 308, the P-CSCF sends a wireless information subscription message to the management function device through the service interface, where the wireless information subscription message is used to subscribe to the wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment.
In this embodiment, the P-CSCF may send different types of subscription messages to the management function device according to its own needs. For example, the P-CSCF may send, to the AMF, a location subscription message for subscribing to location information of the UE when receiving a call request (invite) sent by the UE, where the location subscription message carries an identifier of the UE. In addition, the P-CSCF may also send an access network subscription message to the AMF, where the access network subscription message is used to subscribe to access network information of the UE, and the access network subscription message carries an identifier of the UE. In addition, the P-CSCF may also send a session subscription message to the SMF, where the session subscription message is used to subscribe to Packet Data Unit (PDU) session information of the UE, and the session subscription message carries an identifier of the UE.
And the management function equipment acquires the current wireless information of the UE and sends the wireless information of the user equipment to the P-CSCF through the service interface. In addition, the management function device further sends the wireless information updated by the user equipment to the P-CSCF through a service interface when the wireless information of the UE is updated.
For example, the AMF obtains the cell location where the UE is currently located, and sends the cell location information to the P-CSCF through the serving interface. When the user equipment moves, the AMF acquires the cell position information of the UE after the movement, and sends the updated cell position information to the P-CSCF again.
Step 309, the P-CSCF receives the wireless information of the user equipment sent by the management function device through a service interface.
In this embodiment, both the P-CSCF and the S-CSCF may obtain an identifier of the management function device from the user data server, and then send a wireless information subscription message to the management function device corresponding to the identifier through the serving interface, and after acquiring the wireless information of the UE, the management function device sends the acquired wireless information to the P-CSCF and the S-CSCF through the serving interface. In addition, the P-CSCF can also receive wireless information forwarded by the S-CSCF. After the P-CSCF and the S-CSCF acquire the wireless information of the UE, the P-CSCF and the S-CSCF may provide the IMS service or charge for the UE according to the wireless information. For example, charging for data traffic of the UE is performed according to the access network type of the UE, and the like.
Referring to fig. 4, fig. 4 is a flowchart of a wireless information subscription method according to a fourth embodiment of the present application. The wireless information subscription method provided by the embodiment of the application specifically comprises the following steps:
step 401, the CSCF acquires the identifier of the management function device where the user equipment is located.
In this embodiment, the CSCF may specifically refer to the embodiment corresponding to fig. 3 for acquiring the identifier of the management function device where the user equipment is located, and this is not repeated here.
Step 402, the CSCF sends a wireless information subscription message to the management function device through the service interface, for subscribing the wireless information of the user equipment, where the wireless information subscription message carries an identifier of the user equipment.
In this embodiment, the CSCF may send different types of subscription messages to the management function device according to its own needs. For example, the P-CSCF may send, to the AMF, a location subscription message for subscribing to location information of the UE when receiving a call request (invite) sent by the UE, where the location subscription message carries an identifier of the UE. The location subscription message may be a Namf-eventexposure (location changes) message. In addition, the P-CSCF or the S-CSCF can also send an access network subscription message to the AMF for subscribing the access network information of the UE, wherein the access network subscription message carries the identifier of the UE. In addition, the P-CSCF or the S-CSCF can also send a session subscription message to the SMF for subscribing PDU session information of the UE, wherein the session subscription message carries the identification of the UE.
After receiving the wireless information subscription message, the management function device in the 5GC acquires the wireless information of the UE according to the identifier of the UE carried in the wireless information subscription message, for example, acquires the location information of the UE, the type of the access network, and the like.
Further, since the UE may be in a mobile state, it is handed over from the above-described management function device (referred to as a source management function device or an anchor management function device) to another management function device (referred to as a target management device). Therefore, the management function device may determine that the UE belongs to the management function device after receiving the wireless information subscription message, then acquire the wireless information of the UE, and perform the subsequent step 406. If the UE is determined not to belong to the management of the management function device, step 403 is executed along with step 405, and the wireless information of the UE is obtained from the management function device where the user is currently located.
Step 403, the management function device determines that it does not manage the user device, and obtains an identifier of the management function device where the user device is currently located.
The management function device may query, in a locally managed UE list, whether the UE list includes the UE identifier carried in the wireless information subscription message, and if the UE list does not include the UE identifier, determine that the management function device does not manage the UE. If the UE is inquired, the UE is determined to be managed by the management function device, namely the UE belongs to management of the management function device.
Optionally, the management function device may locally obtain an identifier of the management function device where the UE is currently located, and may also send an identifier obtaining request (e.g., a get command) to a user data server corresponding to the UE, where the identifier is used to obtain the identifier of the management function device where the user device is located, and then receive an identifier obtaining response sent by the user data server, where the identifier of the management function device where the user device is located is carried. The specific step of the user data server obtaining the identifier of the management function device may refer to the related description of step 302 and step 303.
Step 404, the management function device sends the wireless information subscription message to the management function device where the user device is currently located.
The management function device may forward the received wireless information subscription message to the management function device at the current location of the user equipment.
Step 405, the management function device at the current location of the user equipment sends the wireless information of the user equipment to the source management function device.
After receiving the wireless information subscription message, the management function device at the current location of the user equipment may directly obtain the wireless information of the user equipment from the local, and then reply the wireless information of the user equipment to the management function device sending the wireless information subscription message, i.e., the source management function device.
Step 406, the source management function device sends the received wireless information of the user equipment to the CSCF through the service interface.
The source management function device can acquire the management function device at the current position of the UE from the user data server corresponding to the UE when the UE moves and the management function device is switched, so that the wireless information of the UE is acquired from the management function device at the current position of the UE and is forwarded to the CSCF, and the CSCF can conveniently perform related IMS services according to the wireless information of the UE.
Referring to fig. 5, fig. 5 is a hardware structure diagram of a call session control function device CSCF according to a fifth embodiment of the present application.
The CSCF may be implemented using general purpose computer hardware, including a processor 501, a memory 502, a bus 503, an input device 504, an output device 505, and a network interface 506, among other things.
In particular, the memory 502 may include computer storage media in the form of volatile and/or nonvolatile memory such as read only memory and/or random access memory. Memory 502 may store an operating system, application programs, other program modules, executable code, program data, user account data, user subscription data, and the like.
The CSCF can connect into a Network, such as a Local Area Network (LAN), through Network interface 506. In a networked environment, computer-executable instructions stored in the CSCF may be stored in a remote storage device, and are not limited to being stored locally.
When the processor 501 in the CSCF executes the executable code or the application program stored in the memory 502, the CSCF may execute the method steps on the CSCF side in the above embodiments, such as executing the steps 201 and 201, 301 and 302, 401 and 402, and the like. For a specific implementation process, reference is made to the above method embodiments, which are not described herein again.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a management function device according to a sixth embodiment of the present application.
The management function device mainly includes a processor 601, a memory 602, a bus 603, an input device 604, an output device 605, and a network interface 606.
In particular, the memory 602 may include computer storage media in the form of volatile and/or nonvolatile memory such as read only memory and/or random access memory. Memory 602 may store an operating system, application programs, other program modules, executable code, and program data.
The management function device may be connected to a network through a network interface 606, for example, a WIFI network, a 5G, Long Term Evolution (LTE) network through a wireless interface. In a networked environment, computer-executable instructions stored in the management-function device may be stored in a remote memory storage device and are not limited to local storage.
When the processor 601 in the management function device executes the executable code or the application program stored in the memory 602, the management function device may execute the method steps on the side of the management function device in the above embodiments, such as executing steps 203 and 204, 309 and 403 and 404. For specific implementation processes and beneficial effects, reference is made to the above related embodiments, and details are not repeated herein.
Referring to fig. 7, fig. 7 is a functional schematic diagram of a CSCF according to a seventh embodiment of the present application.
As shown in the figure, the call session control function device CSCF provided in this embodiment of the present application mainly includes an identifier obtaining module 701, a wireless information subscription module 702, and a wireless information receiving module 703.
The identifier obtaining module 701 is mainly used for obtaining an identifier of a management function device where the user equipment is located; a wireless information subscription module 702, configured to send a wireless information subscription message to the management function device through a service interface, where the wireless information subscription message is used to subscribe to wireless information of the user equipment, and the wireless information subscription message carries an identifier of the user equipment; a wireless information receiving module 703, configured to receive, through the service interface, the wireless information of the user equipment sent by the management function device. The wireless information of the user equipment may include at least one of location information, access network information, and wireless connection status information of the user equipment.
The CSCF provided in this embodiment of the present application may be used in the foregoing method embodiment, and the CSCF completes the method steps on the CSCF side in the foregoing method embodiment through cooperation between the identifier obtaining module 701, the wireless subscription module 702, and the wireless information receiving module 703. Compared with the CSCF in the prior art, the CSCF provided in this embodiment has the same beneficial effects as the foregoing method embodiment when performing the communication procedure.
Optionally, the identifier obtaining module 701 in the CSCF of this embodiment may include a sending submodule and a receiving submodule. The sending submodule is mainly used for sending an identification request message to a user data server corresponding to the user equipment through the service interface when the user equipment performs IMS registration, and the identification request message is used for requesting the identification of management function equipment where the user equipment is located; and the receiving submodule is mainly used for receiving an identification response message returned by the user data server, wherein the identification response message carries an identification of the management function equipment where the user equipment is located.
Optionally, the sending sub-module in the identifier obtaining module 701 is further configured to send an identifier subscription message to the user data server through the service interface, so as to subscribe to identifier update of a management function device where the user equipment is located. Correspondingly, the receiving sub-module is further configured to receive a notification message returned by the user data server, where the notification message carries an identifier of the updated management function device, so that the CSCF can obtain the updated identifier of the management function device in time when the user device performs management function device switching.
In this embodiment, the management function device is presented in the form of a functional module, where "module" may refer to an application-specific integrated circuit (ASIC), a processor and memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices capable of providing the above-described functions. In a simple embodiment, those skilled in the art may realize that the management function device in the present embodiment may also be implemented in the form of hardware as shown in fig. 5.
Referring to fig. 8, fig. 8 is a functional schematic diagram of a management function device according to an eighth embodiment of the present application.
As shown in the figure, the management function device provided in this embodiment of the present application includes a subscription receiving module 801, a wireless information obtaining module 802, and a wireless information sending module 803.
The subscription receiving module 801 is mainly configured to receive, through a service interface, a wireless information subscription message sent by the CSCF, and is configured to subscribe to wireless information of the user equipment, where the wireless information subscription message carries an identifier of the user equipment; the wireless information obtaining module 802 is mainly used for obtaining wireless information of the user equipment; the wireless information sending module 803 is mainly configured to send the wireless information of the user equipment to the CSCF through the serving interface.
The management function device provided in this embodiment of the present application may be used in the foregoing method embodiments, and the method steps on the side of the management function device in the method embodiments are completed through cooperation between the subscription receiving module 801, the wireless information obtaining module 802, and the wireless information sending module 803. Compared with the prior art, the management function device provided by the embodiment has the same beneficial effects as the method embodiment when the management function device executes the functions.
Optionally, in the management function device provided in this embodiment, the wireless information obtaining module 802 may include a determining sub-module, a sending sub-module, and a receiving sub-module.
The determining submodule is mainly used for determining that the user equipment is not managed by the management function equipment and acquiring an identifier of the management function equipment where the user equipment is currently located; the sending submodule is mainly used for sending the wireless information subscription message to the management function equipment where the user equipment is currently located; the receiving submodule is mainly used for receiving the wireless information of the user equipment, which is sent by the management function equipment where the user equipment is currently located.
The seventh and eighth embodiments of the present invention are each presented in the form of a functional module, where a "module" may refer to an application specific integrated circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the above-described functionality. Those skilled in the art will appreciate that the CSCF and the management function device in the present embodiment may also be implemented in hardware as shown in fig. 5 and 6, respectively.
For example, the functions implemented by the identity obtaining module 701, the wireless information subscription module 702 and the wireless information receiving module 703 in the CSCF can be implemented by the processor 501 and the memory 502 in fig. 5. For example, the identification obtaining module 701 may obtain the identification of the management function device where the user equipment is located by executing the code stored in the memory 502 by the processor 501.
The functions implemented by the subscription receiving module 801, the wireless information acquisition module 802, and the wireless information transmission module 803 in the management function device may be implemented by the processor 601 and the memory 602 in fig. 6. For example, the step of the wireless information acquisition module 802 acquiring the wireless information of the user equipment can be realized by the processor 601 executing the codes stored in the memory 602.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. A method for subscribing wireless information is applied to a proxy call session control function (P-CSCF) in an IP Multimedia Subsystem (IMS), and is characterized by comprising the following steps:
receiving a registration success message sent by an S-CSCF in an IMS, wherein the registration success message carries an access of a user equipment location and an identification of a mobile management function (AMF);
sending a wireless information subscription message to the AMF through a service interface, wherein the wireless information subscription message is used for subscribing the wireless information of the user equipment and carries the identifier of the user equipment;
receiving wireless information of the user equipment sent by the AMF through the service interface;
wherein the wireless information of the user equipment comprises at least one of location information, access network information, wireless connection state information, and packet data session state of the user equipment.
2. The method of claim 1, further comprising:
the P-CSCF receives a notification message sent by an S-CSCF in the IMS network, wherein the notification message carries an updated AMF identifier;
and the P-CSCF uses the updated AMF identifier to replace the management function equipment identifier carried in the registration success message.
3. The method of claim 1, further comprising:
and the P-CSCF sends a registration success message of deleting the identification of the AMF to the user equipment.
4. A proxy call session control function, P-CSCF, comprising:
a memory having program code stored therein, and a processor that retrieves and executes the program code stored in the memory, thereby causing the P-CSCF to perform the wireless information subscription method of any of claims 1-3.
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| CN201810079488.XA CN110087229B (en) | 2018-01-26 | 2018-01-26 | Wireless information subscription method, related device and system |
| PCT/CN2019/070184 WO2019144786A1 (en) | 2018-01-26 | 2019-01-03 | Wireless information subscription method, related devices and system |
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| CN201810079488.XA CN110087229B (en) | 2018-01-26 | 2018-01-26 | Wireless information subscription method, related device and system |
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| CN114788365B (en) * | 2019-10-11 | 2024-08-13 | 三星电子株式会社 | Apparatus and method for service subscription via E2 interface in radio access network communication system |
| CN114448945B (en) * | 2020-10-19 | 2024-03-19 | 中国移动通信集团重庆有限公司 | Voice calling method, device, system and user terminal |
| CN112866979B (en) * | 2020-12-31 | 2022-09-09 | 恒安嘉新（北京）科技股份公司 | User information association method, device, equipment and medium based on 5G service interface |
| CN112968868B (en) * | 2021-01-29 | 2023-06-23 | 中国联合网络通信集团有限公司 | Service opening method and device |
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| CN101159570B (en) * | 2007-10-31 | 2011-04-20 | 中兴通讯股份有限公司 | IP multimedia subsystem based user subscription method of multi-terminal user |
| CN101931923B (en) * | 2009-06-26 | 2014-10-22 | 中兴通讯股份有限公司 | Method for user registration of IP multimedia subsystem network and service fulfillment system |
| CN101801086A (en) * | 2010-04-08 | 2010-08-11 | 新邮通信设备有限公司 | Method and system for locating user |
| JP2012044556A (en) * | 2010-08-20 | 2012-03-01 | Ntt Docomo Inc | Mobile communication method and policy control node |
| CN102387267B (en) * | 2011-09-29 | 2017-05-03 | 中兴通讯股份有限公司 | Convergence calling method and system |
| CN103095470B (en) * | 2011-10-27 | 2016-02-10 | 阿尔卡特朗讯 | A kind of method of the Guest User's online charging to application content provider |
| US8712409B2 (en) * | 2012-03-05 | 2014-04-29 | T-Mobile Usa, Inc. | System and method for terminating communication sessions with roaming mobile devices |
| CN107548077B (en) * | 2016-06-24 | 2020-07-07 | 华为技术有限公司 | Position information acquisition method, device and system |
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