CN109274512B - Management method and device for proxy call service control function - Google Patents

Management method and device for proxy call service control function Download PDF

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CN109274512B
CN109274512B CN201710580337.8A CN201710580337A CN109274512B CN 109274512 B CN109274512 B CN 109274512B CN 201710580337 A CN201710580337 A CN 201710580337A CN 109274512 B CN109274512 B CN 109274512B
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service control
control function
call service
function entity
proxy call
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CN109274512A (en
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翟义强
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration

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  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
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  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention provides a method and a device for managing a proxy call service control function, wherein the method for managing the proxy call service control function comprises the following steps: receiving a discovery selection request for an agent call service control function entity sent by a packet data gateway; if the packet data gateway is authorized by the proxy call service control function entity, the parameter information of the proxy call service control function entity is returned to the packet data gateway according to the discovery selection request, and the NRF can adopt a centralized and uniform selection strategy without configuring the selection configuration of the P-CSCF on all PGWs. The authorization of the PGW to discover the capability of selecting the P-CSCF can be realized by registering and authorizing the P-CSCF to the NRF, and the function selection authorization similar to a blacklist or a whitelist can be realized.

Description

Management method and device for proxy call service control function
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for managing a proxy call service control function.
Background
A P-CSCF (Proxy-call service control function) is the first point of interaction between the IMS (IP Multimedia Subsystem) signaling plane and the User, and is an outbound/inbound SIP Proxy server from the SIP (Session Initiation Protocol) perspective, and all SIP signaling, whether from or to the UE (User Equipment), must pass through the P-CSCF.
When a Voice over LTE (Voice over LTE) user initiates an IMS PDN, the user needs to request a P-CSCF address. Under the LTE architecture, the configuration is completed in a PGW (Packet Data Network Gateway) local configuration manner.
With the evolution of the 5G protocol, the discovery option of a network function is defined as that the network function discovers a certain target network function. This discovery can be implemented by a simple target network in a local configuration, such as selection of P-CSCF by PGW under LTE. As shown in fig. 1, all PGWs need to maintain the node status of each P-CSCF, which forms a status link maintenance network and brings a certain load to network elements. In order to find out that the P-CSCF is selected, a local policy selected by the P-CSCF needs to be configured in each PGW, which brings certain difficulty in network element maintenance. The P-CSCF can only be in passive selection during this discovery selection process, and is not easy to actively issue black-list and white-list authorization for discovery selection to the PGW.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention provide a method and an apparatus for managing a proxy call service control function, so as to solve the technical problems that, in a process of discovering and selecting a P-CSCF by a PGW, all PGWs need to configure a local policy selected by the P-CSCF, so that network element maintenance is difficult and network element high load is caused.
According to an aspect of an embodiment of the present invention, there is provided a method for managing a proxy call service control function, including:
receiving a discovery selection request for an agent call service control function entity sent by a packet data gateway;
if the packet data gateway is authorized by the agent call service control function entity, returning the parameter information of the agent call service control function entity to the packet data gateway according to the discovery selection request.
Optionally, the management method further includes:
receiving a registration request initiated by a proxy call service control function entity, and registering the proxy call service control function entity according to the registration request;
receiving authorization information sent by the agent call service control function entity to the packet data gateway, and authorizing part or all of the packet data gateway to find and select the agent call service control function entity according to the authorization information.
Optionally, the registering the proxy call service control function entity according to the registration request includes:
generating registration data of the agent call service control function entity according to the registration request;
the returning the parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request comprises:
and returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
Optionally, the returning, according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request, the relevant information of the proxy call service control function entity to the packet data gateway includes:
and returning a proxy call service control function list in which the related information of the proxy call service control function entity is stored to the packet data gateway according to the full-name domain name and the registration data of the proxy call service control function entity in the discovery selection request.
Optionally, the management method further includes:
and if the packet data gateway is not authorized by the proxy call service control function entity, rejecting the discovery selection request.
Optionally, the management method further includes:
receiving node state reported by a proxy call service control function entity, and updating state information of the proxy call service control function entity according to the node state;
and if the node state reported by the proxy call service control function entity changes, sending the state information of the proxy call service control function entity to a packet data gateway.
Optionally, the management method further includes:
if the node state is not reported after the agent call service control function entity is overtime, sending a request message for requesting the node state to the agent call service control function entity;
if the agent call service control function entity does not send the node state after receiving the request message, determining the fault information of the agent call service control function entity;
and updating the fault information of the proxy call service control function entity into the state information.
According to another aspect of the embodiments of the present invention, there is also provided a network function warehousing function entity, including:
a receiving module, configured to receive a discovery selection request for a proxy call service control function entity sent by a packet data gateway;
and the discovery module is used for returning the parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request if the packet data gateway is authorized by the proxy call service control function entity.
Optionally, the network function warehousing function entity further includes:
the registration module is used for receiving a registration request initiated by the proxy call service control function entity and registering the proxy call service control function entity according to the registration request;
and the authorization module is used for receiving authorization information sent by the proxy call service control function entity to the packet data gateway and authorizing part or all of the packet data gateway to discover and select the proxy call service control function entity according to the authorization information.
Optionally, the registration module includes:
a registration unit, configured to generate registration data of the proxy call service control function entity according to the registration request;
the discovery module includes:
and the discovery unit is used for returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
Optionally, the discovery unit includes:
and the discovery subunit is configured to return, to the packet data gateway, the proxy call service control function list in which the information related to the proxy call service control function entity is stored, according to the fully-named domain name and the registration data of the proxy call service control function entity in the discovery selection request.
Optionally, the network function warehousing function entity further includes:
a rejecting module, configured to reject the discovery selection request if the packet data gateway is not authorized by the proxy call service control function entity.
Optionally, the network function warehousing function entity further includes:
the first updating module is used for receiving the node state reported by the agent call service control function entity and updating the state information of the agent call service control function entity according to the node state;
and the sending module is used for sending the state information of the proxy call service control function entity to the packet data gateway if the node state reported by the proxy call service control function entity changes.
Optionally, the network function warehousing function entity further includes:
the control module is used for sending request information for requesting the node state to the proxy call service control function entity if the node state is not reported after the proxy call service control function entity is overtime;
a determining module, configured to determine fault information of the proxy call service control function entity if the proxy call service control function entity does not send a node state after receiving the request message;
and the second updating module is used for updating the fault information of the proxy call service control function entity into the state information.
According to another aspect of the embodiments of the present invention, there is also provided a network function warehousing function entity, including: the proxy call service control function management method comprises the following steps of a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the program to realize the steps of the proxy call service control function management method.
According to still another aspect of an embodiment of the present invention, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps in the management method of the proxy call service control function as described above.
The embodiment of the invention has the following beneficial effects:
firstly, after a network function warehousing function entity receives a discovery selection request sent by a packet data gateway for a proxy call service control function entity, if the packet data gateway is authorized by the proxy call service control function entity, the management method of the embodiment of the invention can realize the discovery selection of the PGW for the P-CSCF by the network function warehousing function entity returning the parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request, NRF can uniformly complete the collection of network function services, the PGW does not need to locally configure the selection strategies of all the P-CSCF, the NRF can adopt a centralized and uniform selection strategy, and does not need to configure the selection configuration of the P-CSCF on all the PGW.
Secondly, after the network function storage function entity receives the node state reported by the agent call service control function entity, the network function storage function entity updates the state information of the agent call service control function entity according to the node state. If the node state reported by the agent call service Control function entity changes, the network function warehousing function entity sends the state information of the agent call service Control function entity to the packet data gateway, so that the interaction of a reticular ICMP (Internet Control Message Protocol) Message generated by maintaining the node state between the packet data gateway and the service Control function entity can be reduced, and the system load can be reduced.
And thirdly, before the process of discovering and selecting the proxy call service control function entity, the gateway of partial or all packet data can be authorized according to the authorization information, and the function selection authorization similar to a blacklist or a whitelist can be realized.
Drawings
Fig. 1 illustrates a node state of a PGW maintaining P-CSCF in an EPS (Evolved Packet System) in the prior art;
fig. 2 is a flowchart of a method for managing a proxy call service control function according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a procedure for selecting a P-CSCF through NRF discovery according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a node state flow of node management and maintenance P-CSCF through NRF according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network function warehousing function entity according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network function warehousing function entity according to another embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
In order to realize the authorization of the PGW discovery and selection P-CSCF capability, or the Function selection authorization similar to the black list or the white list, an NRF (network Function warehousing Function) network element or a network Function warehousing Function entity may be introduced, the network Function warehousing Function entity may be used for the state maintenance, registration authorization, and discovery selection of the network Function node, and the network Function warehousing Function entity may realize the selection discovery of the target network Function.
To this end, an embodiment of the present invention provides a management method for a proxy call service control function, where the management method is applicable to a network function repository function entity, and referring to fig. 2, the management method includes the following steps:
s201, receiving a discovery selection request for a proxy call service control function entity sent by a packet data gateway.
The selection request includes Identification information of a proxy call service control function entity to be discovered by the packet data gateway, and it should be noted that the selection request may carry, in addition to Identification information for querying the proxy call service control function entity, related configuration information, for example, the selection request may carry information such as an FQDN (Fully Qualified Domain Name) for querying a P-CSCF (i.e., a proxy call service control function entity), or may also carry an APN (Access Point Name), a TA (tracking area), an IMSI (International Mobile Subscriber identity), an MSISDN (Mobile station Integrated Services Digital Network Number), and the like. It is to be understood that, in this embodiment, the content and the type of the information carried in the selection request are not specifically limited.
S202, if the packet data gateway is authorized by the agent call service control function entity, returning the parameter information of the agent call service control function entity to the packet data gateway according to the discovery selection request.
It should be noted that, if the packet data gateway is not authorized by the proxy call service control function entity, the discovery selection request is rejected.
Optionally, the network function repository function entity may return the related information of the proxy call service control function entity to the packet data gateway according to the identification information (e.g. FQDN) of the proxy call service control function entity in the discovery selection request and the registration data of the proxy call service control function entity generated by the registration request.
Specifically, the network function repository function entity may return a proxy call service control function list (or referred to as a P-CSCF list) storing information related to the proxy call service control function entity to the packet data gateway according to the fully-named domain name and the registration data of the proxy call service control function entity in the discovery selection request.
Optionally, before performing discovery selection of the proxy call service control function entity by the packet data gateway, the management method further includes the following steps:
11) and receiving a registration request initiated by the proxy call service control function entity, and registering the proxy call service control function entity according to the registration request.
Optionally, registration data of the proxy call service control function entity may be generated according to the registration request.
12) Receiving authorization information sent by the agent call service control function entity to the packet data gateway, and authorizing part or all of the packet data gateway to find and select the agent call service control function entity according to the authorization information.
It should be noted that, in the process of authorizing part or all of the packet data gateways according to the authorization information, the network function warehousing function entity may set a black list or a white list, so that the function selection authorization of the black list or the white list may be realized. For example, a gateway of packet data that is blacklisted cannot send a discovery request to a network functional warehousing function entity after blacklisting is enabled. If the white list is set up, the gateway of the grouped data in the white list can preferably initiate a discovery request to the network function warehousing function entity, so that the safety and the rapidity can be greatly improved.
In order to facilitate understanding of how the discovery selection of the proxy call service control function entity by the packet data gateway is implemented by the management method according to the embodiment of the present invention, referring to fig. 3, the following describes an example of a flow of the management method.
In order to realize the discovery selection of the packet data gateway to the proxy call service control function entity, the analysis flow of the management method is as follows:
21) after the service is available, the P-CSCF initiates registration to a corresponding NRF (NRF may be in the range of PLMN (Public Land Mobile Network)), and centrally registers its own Network function and service information on the NRF;
22) the NRF generates an FQDN record according to the registration information (or directly takes the FQDN information during registration), and locally stores the generated registration data;
23) the P-CSCF simultaneously sends authorization information of the PGW to the NRF, and authorizes part or all of the PGW to find and select the P-CSCF;
24) the PGW initiates discovery selection of P-CSCF to NRF, which may carry information such as APN, TA, IMSI, MSISDN, and may also carry FQDN inquiring about P-CSCF, for example: PCSCF.APN-XXX.MNC-XXX.MCC-XXX.5g.org. The FQDN format needs to be consistent with the FQDN format in the NRF registration data.
25) The NRF first performs an authorization check on the requested PGW. If each P-CSCF does not authorize the discovery selection of the PGW, rejecting the discovery selection request; step 26) is performed if there is a P-CSCF authorizing discovery selection of the PGW.
26) And the NRF inquires the registration data according to the FQDN in the request information, returns a P-CSCF list to the PGW, and if the request information has a non-FQDN record, the request information needs to be converted into the FQDN information and then inquires.
If the returned P-CSCF list carries information such as priority, weight and/or load. The PGW may further filter, such as screening out high priority P-CSCFs, in the returned P-CSCF list.
In this embodiment, after the network function warehousing function entity receives a discovery selection request for the proxy call service control function entity sent by the packet data gateway, if the packet data gateway is already authorized by the proxy call service control function entity, the management method in the embodiment of the present invention can implement discovery selection of the PGW for the P-CSCF by the network function warehousing function entity returning parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request. The P-CSCF initiates registration and authorization of network functions and services to the NRF, and the NRF finishes collection of the network function services in a unified way. The PGW does not need to configure the selection strategies of all P-CSCF locally, but the NRF is redirected to request to find and select the P-CSCF, and the NRF can adopt a centralized and uniform selection strategy without configuring the selection configuration of the P-CSCF on all PGWs.
In this embodiment, before the process of discovering and selecting the proxy call service control function entity, a gateway of partial or all packet data may be authorized according to the authorization information, and function selection authorization similar to a blacklist or a whitelist may be implemented.
Referring to fig. 4, in order to implement that the NRF maintains the node states of each P-CSCF, the P-CSCF may actively report state information to complete state collection of all nodes, where in the state collection process of the nodes, the following two situations exist:
the first situation is as follows: the NRF receives the node state reported by the agent call service control function entity.
Case two: the NRF does not receive the node status reported by the proxy call service control function entity, i.e. the proxy call service control function entity does not report the node status when time out.
For case one, on the basis of the flowchart of the management method shown in fig. 2, the management method further includes:
31) and receiving the node state reported by the proxy call service control function entity, and updating the state information of the proxy call service control function entity according to the node state.
32) And if the node state reported by the proxy call service control function entity changes, sending the state information of the proxy call service control function entity to a packet data gateway.
For case two, on the basis of the flowchart of the management method shown in fig. 2, the management method further includes:
41) if the node state is not reported after the agent call service control function entity is overtime, sending request information for requesting the node state to the agent call service control function entity;
42) if the agent call service control function entity does not send the node state after receiving the request message, determining the fault information of the agent call service control function entity;
43) and updating the fault information of the proxy call service control function entity into the state information.
In order to facilitate understanding of the procedure in which the NRF maintains the state of each P-CSCF node, an analysis flow of the management method is exemplified below.
In order to maintain the node state of each P-CSCF, the analysis flow of the management method is as follows:
51) each P-CSCF (possibly PLMN wide) reports its node status to the NRF.
52) The NRF updates the corresponding P-CSCF node status information.
53) For the registered P-CSCF node, the node information is not reported after time out, the NRF can try to request the node information from the P-CSCF according to a local strategy, and if the node is not reachable, the node can be considered to be in failure.
54) And the NRF pushes the state information of the P-CSCF node to the PGW when the state of the P-CSCF node changes.
In this embodiment, the node status reported by the proxy call service control function entity is received, and the status information of the proxy call service control function entity is updated according to the node status. If the node state reported by the agent call service control function entity changes, the state information of the agent call service control function entity is sent to the packet data gateway, thus reducing the interaction of the mesh ICMP information generated by maintaining the node state between the packet data gateway and the service control function entity and lightening the system load.
Fig. 5 is a schematic structural diagram of a network function warehousing function entity according to an embodiment of the present invention, and referring to fig. 5, the network function warehousing function entity 500 includes: a receiving module 501 and a discovery module 502.
The receiving module 501 is configured to receive a discovery selection request sent by a packet data gateway for a proxy call service control function entity.
The discovery module 502 is configured to, if the packet data gateway is already authorized by the proxy call service control function entity, return parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request.
Optionally, to implement the analysis process of the discovery module 502, the network function warehousing function further includes: the system comprises a registration module, an authorization module and a rejection module.
The registration module is used for receiving a registration request initiated by the proxy call service control function entity and registering the proxy call service control function entity according to the registration request.
The authorization module is used for receiving authorization information sent by the proxy call service control function entity to the packet data gateway, and authorizing part or all of the packet data gateway to discover and select the proxy call service control function entity according to the authorization information.
The rejecting module is used for rejecting the discovery selection request if the packet data gateway is not authorized by the proxy call service control function entity.
Optionally, the registration module includes: and a registration unit.
And the registration unit is used for generating registration data of the proxy call service control function entity according to the registration request.
At this time, the discovery module 502 includes: the unit is discovered.
And the discovery unit is used for returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
Optionally, the discovery unit includes: a subunit is discovered.
And the discovery subunit is configured to return, to the packet data gateway, a proxy call service control function list in which the information related to the proxy call service control function entity is stored, according to the fully-named domain name and the registration data of the proxy call service control function entity in the discovery selection request.
In order to enable the network function storage function entity to maintain the node state of each P-CSCF, the network function storage function entity is further provided with: the device comprises a first updating module, a sending module, a control module, a judging module and a second updating module.
The first updating module is used for receiving the node state reported by the proxy call service control function entity and updating the state information of the proxy call service control function entity according to the node state;
and the sending module is used for sending the state information of the proxy call service control function entity to a packet data gateway if the node state reported by the proxy call service control function entity changes.
The control module is used for sending request information for requesting the node state to the proxy call service control function entity if the node state is not reported after the proxy call service control function entity is overtime;
the judging module is used for determining the fault information of the proxy call service control function entity if the proxy call service control function entity does not send the node state after receiving the request message;
and the second updating module is used for updating the fault information of the agent call service control function entity into the state information.
It should be noted that, the network function repository functional entity in the embodiment of the present invention may implement the steps of the management method for the proxy call service control function, which are not described herein again.
Firstly, after receiving a discovery selection request for a proxy call service control function entity sent by a packet data gateway through a receiving module 501, if the packet data gateway is authorized by the proxy call service control function entity, parameter information of the proxy call service control function entity is returned to the packet data gateway through a discovery module 502 according to the discovery selection request, so that discovery selection of a PGW for a P-CSCF can be realized. The P-CSCF initiates registration and authorization of network functions and services to the NRF, and the NRF finishes collection of the network function services in a unified way. The PGW does not need to configure the selection strategies of all P-CSCF locally, but the NRF is redirected to request to find and select the P-CSCF, and the NRF can adopt a centralized and uniform selection strategy without configuring the selection configuration of the P-CSCF on all PGWs.
And secondly, after receiving the node state reported by the agent call service control function entity, updating the state information of the agent call service control function entity through a first updating module according to the node state. If the node state reported by the agent call service control function entity changes, the state information of the agent call service control function entity is sent to the packet data gateway through the sending module, so that the interaction of the meshed ICMP information generated by maintaining the node state between the packet data gateway and the service control function entity can be reduced, and the system load can be reduced.
And thirdly, before the process of discovering and selecting the proxy call service control function entity, the authorization module authorizes part or all of the gateways of the packet data according to the authorization information, and the function selection authorization similar to a blacklist or a whitelist can be realized.
Fig. 6 is a schematic structural diagram of a network function warehousing function entity according to another embodiment of the present invention. As shown in fig. 6, the network function repository function entity 600 shown in fig. 6 includes: a processor 601, a transceiver 602, a memory 603, and a bus interface, wherein:
in this embodiment of the present invention, the network function warehousing function entity 600 further includes: a computer program stored on the memory 603 and executable on the processor 601, the computer program when executed by the processor 601 performing the steps of:
receiving a discovery selection request for an agent call service control function entity sent by a packet data gateway; if the packet data gateway is authorized by the agent call service control function entity, returning the parameter information of the agent call service control function entity to the packet data gateway according to the discovery selection request. In fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 601 and various circuits of memory represented by memory 603 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.
Optionally, the computer program when executed by the processor 601 may further implement the following steps:
receiving a registration request initiated by a proxy call service control function entity, and registering the proxy call service control function entity according to the registration request; receiving authorization information sent by the agent call service control function entity to the packet data gateway, and authorizing part or all of the packet data gateway to find and select the agent call service control function entity according to the authorization information.
Optionally, the computer program when executed by the processor 601 may further implement the following steps:
generating registration data of the agent call service control function entity according to the registration request; and returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
Optionally, the computer program when executed by the processor 601 may further implement the following steps: and returning a proxy call service control function list in which the related information of the proxy call service control function entity is stored to the packet data gateway according to the full-name domain name and the registration data of the proxy call service control function entity in the discovery selection request.
Optionally, the computer program when executed by the processor 601 may further implement the following steps: and if the packet data gateway is not authorized by the proxy call service control function entity, rejecting the discovery selection request.
Optionally, the computer program when executed by the processor 601 may further implement the following steps: receiving node state reported by a proxy call service control function entity, and updating state information of the proxy call service control function entity according to the node state; and if the node state reported by the proxy call service control function entity changes, sending the state information of the proxy call service control function entity to a packet data gateway.
Optionally, the computer program when executed by the processor 601 may further implement the following steps:
if the node state is not reported after the agent call service control function entity is overtime, sending a request message for requesting the node state to the agent call service control function entity; if the agent call service control function entity does not send the node state after receiving the request message, determining the fault information of the agent call service control function entity; and updating the fault information of the proxy call service control function entity into the state information.
Firstly, after a discovery selection request for a proxy call service control function entity sent by a packet data gateway is received by a processor 601, if the packet data gateway is authorized by the proxy call service control function entity, parameter information of the proxy call service control function entity is returned to the packet data gateway by the processor 601 according to the discovery selection request, so that discovery selection of a PGW for a P-CSCF can be realized. The P-CSCF initiates registration and authorization of network functions and services to the NRF, and the NRF finishes collection of the network function services in a unified way. The PGW does not need to configure the selection strategies of all P-CSCF locally, but the NRF is redirected to request to find and select the P-CSCF, and the NRF can adopt a centralized and uniform selection strategy without configuring the selection configuration of the P-CSCF on all PGWs.
After receiving the node state reported by the proxy call service control function entity, the processor 601 updates the state information of the proxy call service control function entity according to the node state. If the node status reported by the proxy call service control function entity changes, the processor 601 sends the status information of the proxy call service control function entity to the packet data gateway, so that the interaction of the meshed ICMP information generated by maintaining the node status between the packet data gateway and the service control function entity can be reduced, and the system load can be reduced.
Again, before discovering the selected procedure for the proxy call service control function entity, the gateway that can authorize part or all of the packet data according to the authorization information through the processor 601 may implement black list or white list like function selection authorization.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the management method for the proxy call service control function as described above.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
In the embodiments provided herein, it should be understood that "B responsive to A" means that B is associated with A from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network-side device) to perform some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

1. A management method of proxy call service control function is suitable for a network function storage function entity, and is characterized by comprising the following steps:
receiving a registration request initiated by a proxy call service control function entity, and registering the proxy call service control function entity according to the registration request;
receiving authorization information sent by a proxy call service control function entity to a packet data gateway, and authorizing part or all of the packet data gateways to find and select the proxy call service control function entity according to the authorization information;
receiving a discovery selection request for an agent call service control function entity sent by a packet data gateway;
if the packet data gateway is authorized by the agent call service control function entity, returning the parameter information of the agent call service control function entity to the packet data gateway according to the discovery selection request.
2. The method for managing according to claim 1, wherein the registering a proxy call service control function entity according to the registration request comprises:
generating registration data of the agent call service control function entity according to the registration request;
the returning the parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request comprises:
and returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
3. The management method according to claim 2, wherein the returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity in the discovery selection request and the registration data comprises:
and returning a proxy call service control function list in which the related information of the proxy call service control function entity is stored to the packet data gateway according to the full-name domain name and the registration data of the proxy call service control function entity in the discovery selection request.
4. The management method according to claim 1, wherein the management method further comprises:
and if the packet data gateway is not authorized by the proxy call service control function entity, rejecting the discovery selection request.
5. The management method according to claim 1, wherein the management method further comprises:
receiving node state reported by a proxy call service control function entity, and updating state information of the proxy call service control function entity according to the node state;
and if the node state reported by the proxy call service control function entity changes, sending the state information of the proxy call service control function entity to a packet data gateway.
6. The management method according to claim 5, further comprising:
if the node state is not reported after the agent call service control function entity is overtime, sending a request message for requesting the node state to the agent call service control function entity;
if the agent call service control function entity does not send the node state after receiving the request message, determining the fault information of the agent call service control function entity;
and updating the fault information of the proxy call service control function entity into the state information.
7. A network function repository function entity, comprising:
the registration module is used for receiving a registration request initiated by the proxy call service control function entity and registering the proxy call service control function entity according to the registration request;
the authorization module is used for receiving authorization information sent by the proxy call service control function entity to the packet data gateway and authorizing part or all of the packet data gateway to find and select the proxy call service control function entity according to the authorization information;
a receiving module, configured to receive a discovery selection request for a proxy call service control function entity sent by a packet data gateway;
and the discovery module is used for returning the parameter information of the proxy call service control function entity to the packet data gateway according to the discovery selection request if the packet data gateway is authorized by the proxy call service control function entity.
8. The network functional repository function of claim 7, wherein the registration module comprises:
a registration unit, configured to generate registration data of the proxy call service control function entity according to the registration request;
the discovery module includes:
and the discovery unit is used for returning the related information of the proxy call service control function entity to the packet data gateway according to the identification information of the proxy call service control function entity and the registration data in the discovery selection request.
9. The network functional warehousing function entity of claim 8, wherein the discovery unit comprises:
and the discovery subunit is configured to return, to the packet data gateway, the proxy call service control function list in which the information related to the proxy call service control function entity is stored, according to the fully-named domain name and the registration data of the proxy call service control function entity in the discovery selection request.
10. The network functional warehousing function entity of claim 7, further comprising:
a rejecting module, configured to reject the discovery selection request if the packet data gateway is not authorized by the proxy call service control function entity.
11. The network functional warehousing function entity of claim 7, further comprising:
the first updating module is used for receiving the node state reported by the agent call service control function entity and updating the state information of the agent call service control function entity according to the node state;
and the sending module is used for sending the state information of the proxy call service control function entity to the packet data gateway if the node state reported by the proxy call service control function entity changes.
12. The network functional warehousing function entity of claim 11, further comprising:
the control module is used for sending a request message for requesting the node state to the proxy call service control function entity if the node state is not reported after the proxy call service control function entity is overtime;
a determining module, configured to determine fault information of the proxy call service control function entity if the proxy call service control function entity does not send a node state after receiving the request message;
and the second updating module is used for updating the fault information of the proxy call service control function entity into the state information.
13. A network function repository function entity, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps in the method for managing a proxy call service control function according to any one of claims 1 to 6 when executing the program.
14. A computer-readable storage medium having stored thereon a computer program, characterized in that the program, when being executed by a processor, implements the steps in the method for managing a proxy call service control function according to any one of claims 1 to 6.
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