WO2024012238A1

WO2024012238A1 - Communication processing method and apparatus, and communication device and readable storage medium

Info

Publication number: WO2024012238A1
Application number: PCT/CN2023/104338
Authority: WO
Inventors: 程思涵; 吴晓波; 崇卫微
Original assignee: 维沃移动通信有限公司
Priority date: 2022-07-14
Filing date: 2023-06-30
Publication date: 2024-01-18
Also published as: CN117440358A

Abstract

Disclosed in the present application are a communication processing method and apparatus, and a communication device and a readable storage medium. The method comprises: a first core network device determining that a terminal is in a roaming state; the first core network device acquiring a first parameter, wherein the first parameter comprises at least one of the following: a parameter supported by a first service of a roaming place network that provides services for the terminal, and a parameter supported by a first bearer corresponding to the first service of the terminal in the roaming place network; the first core network device receiving a first message which is used for requesting the establishment of the first bearer, and according to the first parameter, the first core network device determining whether to accept the first message; and/or the first core network device sending the first parameter to a second core network device, wherein the first parameter is used by the second core network device to determine whether to accept a second message which is used for requesting the establishment of the first service.

Description

Communication processing method, device, communication equipment and readable storage medium

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210833464.5 filed in China on July 14, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to a communication processing method, device, communication equipment and readable storage medium.

Background technique

Different operators have different support for voice. For example, the guaranteed bit rate (Guaranteed Bit Rate, GBR) or maximum bit rate (Maximum Bit Rate, MBR) supported by operators A, B, and C is 64,000 bits respectively. Bits per second (kbps), 156kbps, 512kbps:

·The GBR value used by mobile network operator (MNO) A is equal to 64kbps;

·The GBR value used by MNO B is equal to 156kbps;

·The value of GBR used by MNO C is equal to 512kbps.

For example, when MNO C's terminal (for example, User Equipment (UE)) roams to MNO A, the terminal will initiate an IP Multimedia System (IP Multimedia Subsystem, IMS) session request based on the stored MNO C configuration, and establish GBR is a 512kbps voice bearer. Specifically, the Session Initiation Protocol (Session Initiation Protocol, SIP) invitation (invite) message carries session description information (Session Description Protocol, SDP) information, and the SDP information includes information about using 512kbps GBR parameters.

When MNO A establishes a voice bearer based on the negotiation results at the IMS layer, since MNO A only supports 64kbps voice bearer establishment, the network side will reject the voice bearer establishment request, causing the voice bearer establishment to fail and causing users to be unable to use voice in roaming locations. business.

Contents of the invention

Embodiments of the present application provide a communication processing method, device, communication equipment and readable storage medium to solve the problem of users being able to use voice services normally in roaming areas.

The first aspect provides a communication processing method, including:

The first core network device determines that the terminal is in roaming state;

The first core network device obtains a first parameter, and the first parameter includes at least one of the following: a parameter supported by a first service of a roaming network that provides services to the terminal. The terminal is in the roaming network. Parameters supported by the first bearer corresponding to the first service;

The first core network device receives a first message for requesting the establishment of the first bearer, and the first core network device determines whether to accept the first message according to the first parameter;

And/or, the first core network device sends the first parameter to the second core network device, and the first parameter is used by the second core network device to determine whether to accept the request to establish the first service. second news.

The second aspect provides a communication processing method, including:

The second core network device receives a first parameter, and the first parameter includes at least one of the following: a parameter supported by the first service of the roaming network that provides services to the terminal, and the terminal is in the first roaming network of the roaming network. Parameters supported by the first bearer corresponding to a service;

The second core network device receives a second message for requesting the establishment of the first service;

The second core network device determines whether to accept the second message according to the first parameter.

In a third aspect, a communication processing device is provided, applied to first core network equipment, including:

The first determination module is used to determine that the terminal is in a roaming state;

A first acquisition module, configured to acquire a first parameter, where the first parameter includes at least one of the following: a parameter supported by a first service of a roaming network that provides services to the terminal. The terminal is in the roaming network. Parameters supported by the first bearer corresponding to the first service;

A first receiving module configured to receive a first message requesting the establishment of the first bearer;

a second determination module, configured for the first core network device to determine whether to accept the first message according to the first parameter;

A first sending module, configured for the first core network device to send the first parameter to the second core network device, where the first parameter is used for the second core network device to determine whether to accept the request to establish the First business second news.

In a fourth aspect, a communication processing device is provided, applied to second core network equipment, including:

The second receiving module is configured to receive first parameters, where the first parameters include at least one of the following: parameters supported by the first service of the roaming network that provides services to the terminal, and the terminal is in all locations of the roaming network. Parameters supported by the first bearer corresponding to the first service;

A third receiving module configured to receive a second message requesting the establishment of the first service;

A third determination module, configured to determine whether to accept the second message according to the first parameter.

In a fifth aspect, a communication device is provided, including: a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor Implement the steps of the method described in the first aspect or the second aspect.

In a sixth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first or second aspect are implemented. .

In a seventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the first aspect or the second aspect. the steps of the method described.

In an eighth aspect, a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first aspect or the steps of the method described in the second aspect.

In a ninth aspect, a communication system is provided. The communication system includes at least two of a terminal, a first core network device, and a second core network device. The first core network device is configured to perform as described in the first aspect. The second core network device is configured to perform the steps of the method described in the second aspect.

In this embodiment of the present application, when the terminal is in the roaming state, the first core network device may determine whether to accept the first message for requesting the establishment of the first bearer based on the first parameter related to the roaming network of the terminal, and/ Or, the first core network device sends the first parameter related to the roaming network of the terminal to the second core network device, so that the second core network device can determine whether to accept the second message of the first service based on the first parameter, Ensure that the first service can be established normally, improve user experience, and avoid the failure to establish the first service requested by the terminal due to inconsistency between the parameters supported by the first service in the home network and the parameters supported by the first service in the roaming network. The user is roaming in no The problem of using the first business method.

Description of drawings

Figure 1 is a flow chart for establishing a voice bearer between UE-1 and UE-2;

Figure 2 is a schematic architectural diagram of a wireless communication system according to an embodiment of the present application;

Figure 3 is one of the flow charts of a communication processing method provided by an embodiment of the present application;

Figure 4 is the second flow chart of a communication processing method provided by an embodiment of the present application;

Figure 5 is the third flowchart of a communication processing method provided by an embodiment of the present application;

Figure 6 is the fourth flowchart of a communication processing method provided by an embodiment of the present application;

Figure 7 is one of the schematic diagrams of a communication processing device provided by an embodiment of the present application;

Figure 8 is a second schematic diagram of a communication processing device provided by an embodiment of the present application;

Figure 9 is a schematic diagram of a core network device provided by an embodiment of the present application;

Figure 10 is a schematic diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (Single- carrier Frequency Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th ^generation Generation, 6G) communication system.

Referring to Figure 1, the figure illustrates the process of establishing a voice bearer between UE-1 and UE-2. The specific steps are as follows:

Step 1: UE-1 establishes a Protocol Data Unit (PDU) session in the roaming network (for example, MNO A) and uses the roaming session management function (Visiting Session Management Function, V-SMF).

Step 2: UE-1 initiates an IMS establishment request through an invitation (Invite) message, carries the information of the voice media to be established in the requested SDP, and requests to establish a voice bearer with a GBR of 512kbps through b=AS:512.

Step 3: The proxy call session control function (Proxy-Call Session Control Function, P-CSCF) sends the invite message to UE-2 through (Serving Call Session Control Function, S-CSCF).

It should be noted that the P-CSCF and S-CSCF in the figure are both IMS network elements that provide services for UE-1, but the IMS network element that provides services for UE-2 is not reflected.

Step 4: UE-2 replies to the SIP 183 message through S-CSCF, which contains the SDP answer (answer).

Step 5: P-CSCF sends a Hyper Text Transfer Protocol (Hyper Text Transfer Protocol, HTTP) notification (POST) request message to the Policy Control Function (PCF) that provides services for UE-1. The message carries The media description information (media info) negotiated through SDP is obtained based on the SDP response message and contains information that requires the use of 512kbps.

Step 6: PCF sends SMF (Home-Session Management Function, H-SMF) sends a request to establish a voice bearer. The request carries the Quality of Service (QoS) parameters of the voice bearer to be established, which includes information that the GBR is 512kbps.

Step 7: H-SMF sends a PDU session update request message (for example, Nsmf_PDUSession_Update Request message) to V-SMF, which may contain QoS parameters.

Step 8: Based on the requested QoS parameters and the QoS parameters it can support, V-SMF determines that it cannot support the 512kbps GBR bearer, and V-SMF sends a PDU session update rejection message (for example, Nsmf_PDUSession_Reject message) to H-SMF.

Step 9: H-SMF sends a rejection message to PCF, that is, H-SMF initiated SM policy association reject (H-SMF initiated SM policy association reject).

Step 10: PCF sends a reject message to P-CSCF.

Step 11: P-CSCF sends a Bye message to UE-1 to indicate rejection of this call.

Step 12: P-CSCF sends a Bye message to UE-2 to terminate this call.

That is, when UE-1 is in the roaming state, because the parameters of the home network and the parameters of the roaming network are inconsistent, UE-1 cannot make or receive voice calls, which affects the user experience.

FIG. 2 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 21 and a network side device 22.

The terminal 21 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. In addition to the above terminal equipment, the terminal involved in this application may also be a chip within the terminal, such as a modem Modem chip, System on Chip (SoC). It should be noted that the embodiment of the present application does not limit the specific type of the terminal 21.

The network side equipment 22 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit. Access network equipment can include base stations, Wireless Local Area Networks (WLAN) access points or WiFi nodes, etc. The base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, sending and receiving point ( Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the NR system is used The base station is introduced as an example, and the specific type of base station is not limited.

Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Services Discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data warehousing (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration ( Centralized network configuration, CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

The communication processing method, device, communication equipment and readable storage medium provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

Referring to Figure 3, an embodiment of the present application provides a communication processing method that is applied to a first core network device. The first core network device may include but is not limited to the PCF of the terminal's home network and the PCRF of the terminal's home network. At least one of the specific steps includes: step 301 to step 305.

Step 301: The first core network device determines that the terminal is in roaming state;

For example, the first core network device can determine whether the terminal is in a roaming state based on the Public Land Mobile Network (PLMN) identifier currently registered by the terminal. When the PLMN identifier currently registered by the terminal is the Visited Public Land Mobile Network, VPLMN) logo, it can be determined that the terminal is in roaming state.

Optionally, the first core network device may obtain the PLMN identity currently registered by the terminal during the registration process of the terminal.

Step 302: The first core network device obtains a first parameter, which includes at least one of the following: (1) parameters supported by the first service of the roaming network that provides services to the terminal, (2) the The terminal determines the parameters supported by the first bearer corresponding to the first service in the roaming network, and then performs step 303 and/or step 305.

Wherein, the parameters supported by the first service of the roaming network that provides services for the terminal can be understood as: parameters supported by the first service corresponding to the VPLMN.

The parameters supported by the first bearer corresponding to the first service of the terminal in the roaming network can be understood as: the parameters supported by the first bearer corresponding to the first service currently usable by the terminal (in the VPLMN network).

In one implementation, when the terminal is in the roaming network, the first core network device may obtain the first parameter from the third core network device. Optionally, the third core network device may include: the home network of the terminal. At least one of the UDM, the HSS of the terminal's home network, the PCF of the roaming network, and the PCRF of the roaming network.

Optionally, the first service may include, but is not limited to, at least one of audio service, video service, etc.; the first bearer may include, but is not limited to, at least one of voice bearer, video bearer, etc.

It can be understood that the order of step 301 and step 302 is not limited in this application, that is, step 301 can be performed first and then step 302, or step 302 can be performed first and then step 301, or step 301 can be performed simultaneously. and step 302

Step 303: The first core network device receives the first message requesting to establish the first bearer, Then execute step 304;

For example, the first core network device may receive a first message from the second core network device. The first message may also be called a Hyper Text Transfer Protocol (Hyper Text Transfer Protocol, HTTP) notification request (POST request) message, or may be called a POST request message. A request message for establishing a first bearer for the terminal.

Optionally, the second core network equipment includes but is not limited to P-CSCF.

Step 304: The first core network device determines whether to accept the first message according to the first parameter;

Step 305: The first core network device sends a first parameter to the second core network device. The first parameter is used by the second core network device to determine whether to accept the second message requesting the establishment of the first service.

For example, the first core network device may send the first parameter to the second core network device through a notification (Notify) message.

Optionally, the second message in step 305 may include a first service establishment request message sent by the terminal, or a first service establishment request message sent by the communication counterpart to the terminal, that is, the second core network device Whether to process the terminal's calling or called call request can be determined based on the first parameter.

In an implementation manner of the present application, step 304 may include:

Step 3041: The first core network device determines second parameters according to the first message, where the second parameters include parameters of the first bearer requested to be established;

Parameters involved in this application include but are not limited to: at least one of GBR and MBR.

Step 3042: The first core network device determines whether the second parameter matches the first parameter, and then executes step 3043 or step 3044;

For example, the first core network device determines whether the absolute value of the difference between the second parameter and the first parameter is greater than the preset value; when the absolute value of the difference between the second parameter and the first parameter is greater than or equal to the preset value , determine a mismatch; when the absolute value of the difference between the second parameter and the first parameter is less than the preset value, determine a match.

Step 3043: When the second parameter matches the first parameter, the first core device sends a third message, where the third message is used to indicate acceptance of the first message;

The third message may also be called an acceptance message.

Step 3044: When the second parameter does not match the first parameter, the first core device sends a fourth message, where the fourth message is used to indicate rejection of the first message.

The fourth message may also be called a rejection message, and the fourth message carries the first parameter, so that the terminal causes the terminal to initiate the establishment of the first service corresponding to the first service again according to the first parameter carried in the fourth message. One bearer, so that the first bearer can be established normally, providing the first service for users in roaming areas, and improving user experience.

For example, if the terminal requests to establish a voice bearer corresponding to the 512kbps voice service, and the voice bearer corresponding to the voice service in the roaming network supports 64kbps, the rejection message carries 64kbps information.

In an embodiment of the present application, the value of a parameter supported by the first bearer corresponding to the first service of the terminal in the roaming network is the minimum of the value of the first parameter and the value of the third parameter. value, the third parameter includes a parameter supported by the first bearer corresponding to the first service of the terminal's home network.

For example, the value of the GBR or MBR parameter of the voice bearer that the terminal can currently use (in the VPLMN network) saved by the first core network device is the value of the GBR or MBR parameter supported by the corresponding voice service of the VPLMN and the value of the local public land mobile network ( The minimum value among the GBR or MBR parameter values supported by the voice service corresponding to Home Public Land Mobile Network (HPLMN).

In this embodiment of the present application, when the terminal is in the roaming state, the first core network device may determine whether to accept the first message for requesting the establishment of the first bearer based on the first parameter related to the roaming network of the terminal, and/ Or, the first core network device sends the first parameter related to the roaming network of the terminal to the second core network device, so that the second core network device can determine whether to accept the second message of the first service based on the first parameter, Ensure that the first service can be established normally, improve user experience, and avoid the failure to establish the first service requested by the terminal due to inconsistency between the parameters supported by the first service in the home network and the parameters supported by the first service in the roaming network. The problem is that users cannot use the first service in roaming areas.

Referring to Figure 4, an embodiment of the present application provides a communication processing method, which is applied to a second core network device. The second core network device includes but is not limited to P-CSCF. The specific steps include: step 401 to step 403.

Step 401: The second core network device receives the first parameter, which includes at least the following: One item: parameters supported by the first service of the roaming network that provides services to the terminal, and parameters supported by the first bearer corresponding to the first service of the roaming network of the terminal;

In one implementation, the second core network device receives the first parameter from the first core network device, and the first core network device includes: the PCF of the terminal's home network, and the PCRF of the terminal's home network. at least one of.

Step 402: The second core network device receives a second message requesting to establish the first service;

In an implementation manner, the second core network device receives a second message sent by the terminal for requesting establishment of the first service.

It can be understood that in this embodiment, the order of step 401 and step 402 is not limited, that is, step 401 can be performed first and then step 402, or step 402 can be performed first and then step 401, or step 401 can be performed simultaneously. and step 402.

Step 403: The second core network device determines whether to accept the second message according to the first parameter.

The second message may include a first service establishment request message sent by the terminal, or a first service establishment request message sent by the communication peer to the terminal. That is, the second core network device may determine based on the first parameter Whether to process the calling or called call request of the terminal.

In an implementation manner of the present application, step 403 may include:

Step 4031: The second core network device determines fourth parameters according to the second message, where the fourth parameters include parameters of the first service requested to be established;

Step 4032: The second core network device determines whether the first parameter matches the fourth parameter, and then executes step 4033 or step 4044;

For example, the second core network device determines whether the absolute value of the difference between the first parameter and the fourth parameter is greater than the preset value; when the absolute value of the difference between the first parameter and the fourth parameter is greater than or equal to the preset value , determine a mismatch; when the absolute value of the difference between the first parameter and the fourth parameter is less than the preset value, determine a match.

Step 4033: When the first parameter matches the fourth parameter, the second core device sends a fifth message, where the fifth message is used to indicate acceptance of the second message;

Among them, the fifth message may also be called an acceptance message.

Step 4034: When the first parameter does not match the fourth parameter, the second core device A sixth message is sent, the sixth message being used to indicate rejection of the second message.

The sixth message may also be called a reject message, and the sixth message carries the first parameter, so that the terminal causes the terminal to initiate the establishment of the first service again according to the first parameter carried in the sixth message, so that The first service can be established normally, improving user experience.

In this embodiment of the present application, when the terminal is in the roaming state, the second core network device can obtain the first parameter related to the roaming network of the terminal from the first core network device, and the second core network device can obtain the first parameter based on the first core network device. The parameters determine whether to accept the second message requesting the establishment of the first service, which can avoid the failure of establishing the first service requested by the terminal due to inconsistency between the parameters supported by the first service of the home network and the parameters supported by the first service of the roaming network. This causes the problem that users cannot use the first service in roaming locations.

In order to better understand the implementation of the present application, Example 1 and Example 2 are introduced below.

Example 1:

See Figure 5, the specific steps are as follows:

Step 1: UE-1 initiates a registration (Registration) request message, which contains the identity and/or IP address of UE-1.

Step 2: P-CSCF sends a subscription request message to the H-PCF or H-PCRF that provides services for UE-1, which is used to subscribe to changes in the PLMN ID of UE-1 (Subscribe to changes in PLMN ID).

Step 3: H-PCF or H-PCRF sends a query message to the HSS or UDM, and obtains the currently registered PLMN ID of UE-1, that is, the VPLMN ID, by querying the HSS or UDM.

Among them, in the fourth generation mobile communication technology (fourth generation, 4G) system, H-PCF or H-PCRF obtains the PLMN ID currently registered by UE-1 through HSS. In the fifth generation mobile communication technology (fifth generation, 5G) system, H-PCF or H-PCRF obtains the currently registered PLMN ID of UE-1 through UDM.

Step 4: UDM or HSS sends the VPLMN information of UE-1 to H-PCF or H-PCRF. The VPLMN information may include: VPLMN ID. Optionally, the VPLMN information may also include the first parameter, such as the first The parameters include GBR or MBR parameters supported by the VPLMN's voice service, and at least one of the GBR or MBR parameters supported by the terminal's voice bearer corresponding to the VPLMN's voice service.

It can be understood that step 4 provides an H-PCF or H-PCRF to obtain the Another implementation method of the VPLMN information may be: H-PCF or H-PCRF sends a request message to the PCF or PCRF of the VPLMN of UE-1 to request VPLMN information.

In this embodiment, the H-PCF or H-PCRF stores the GBR or MBR parameters supported by the voice bearer corresponding to the voice service of the VPLMN for the UE-1, which may be the GBR or MBR parameters supported by the voice bearer corresponding to the VPLMN voice service. The minimum value among the GBR or MBR parameters supported by the voice bearer corresponding to the HPLMN voice service. For example, the minimum value is 64kbps.

Step 5: PCF/PCRF sends the VPLMN information of UE-1 to P-CSCF.

Step 6: P-CSCF sends a registration request message to S-CSCF.

Step 7: S-CSCF sends a response message (for example, 200OK message) to UE-1, indicating that the registration is successful.

Step 8: UE-1 initiates an IMS establishment request to UE-2 through an invite message, carries the information of the voice bearer to be established in the SDP of the invite message, and requests to establish GBR through b=Application Server (AS): 512 It is a 512kbps voice bearer.

Step 9: UE-2 sends a response message (for example, 183 message) to the P-CSCF, carrying an SDP answer (answer).

Step 10: Send an HTTP notification request (POST request) message carrying media information (media info).

Step 11: If the H-PCF or H-PCRF determines that the requirements cannot be met based on the first parameter obtained in step 4, it sends a rejection (Reject) message to the P-CSCF.

Optionally, the rejection message may carry the first parameter. For example, if UE-1 requests to establish a 512kbps voice bearer and the VPLMN can only support a 64kbps voice bearer, the rejection message carries 64kbps information.

Step 12: The P-CSCF sends a rejection message, which carries the first parameter, and UE-1 re-initiates the call request based on the first parameter.

Example 2:

See Figure 6, the specific steps are as follows:

Step 1-4: You can refer to steps 1-4 shown in Figure 5.

Step 5: H-PCF or H-PCRF sends the parameters that UE-1 can use in VPLMN to P-CSCF, and P-CSCF saves them.

Step 6-8: You can refer to Step 6-8 shown in Figure 5.

Step 9: The P-CSCF sends a rejection message, which carries the first parameter, and UE-1 re-initiates the call request based on the first parameter.

It should be noted that Embodiment 1 and Embodiment 2 are introduced with UE-1 as the calling terminal. For the situation where UE-1 is the called terminal and UE-2 is the calling terminal, the P-CSCF can report to the UE -2 sends a 488 message, and UE-2 initiates a call request again.

Referring to Figure 7, an embodiment of the present application provides a communication processing device, which is applied to the first core network equipment. The device 700 includes:

The first determination module 701 is used to determine that the terminal is in a roaming state;

The first acquisition module 702 is used to acquire first parameters, where the first parameters include at least one of the following: parameters of the first service support of the roaming network that provides services for the terminal, and the terminal is in the roaming area. Parameters supported by the first bearer corresponding to the first service of the network;

The first receiving module 703 is configured to receive a first message requesting the establishment of the first bearer;

The second determination module 704 is used for the first core network device to determine whether to accept the first message according to the first parameter;

The first sending module 705 is used for the first core network device to send the first parameter to the second core network device. The first parameter is used for the second core network device to determine whether to accept the request for establishing the request. The second message of the first business.

In an embodiment of the present application, the second determination module 704 includes:

A first determining unit configured to determine second parameters according to the first message, where the second parameters include parameters of the first bearer requested to be established;

A first determination unit, used to determine whether the second parameter matches the first parameter;

A first sending unit configured to send a third message when the second parameter matches the first parameter, where the third message is used to indicate acceptance of the first message; or, when the second parameter matches When it does not match the first parameter, a fourth message is sent, and the fourth message is used to indicate rejection of the first message.

In an embodiment of the present application, the fourth message carries the first parameter.

In an embodiment of the present application, the first determination module 701 is further configured to: obtain the first parameter from a third core network device, where the third core network device includes: the home network of the terminal At least one of the unified data management UDM of the network, the home user server HSS of the terminal's home network, the policy control function PCF of the roaming network, and the policy and charging rule function PCRF of the roaming network.

In an embodiment of the present application, the value of the parameter supported by the first bearer corresponding to the first service of the roaming network of the terminal is the value of the first parameter and the value of the third parameter. The minimum value of , the third parameter includes a parameter supported by the first bearer corresponding to the first service of the terminal's home network.

In an embodiment of the present application, the first core network device includes: the PCF of the terminal's home network or the terminal's home network PCRF.

In an embodiment of the present application, the parameters include: at least one of a guaranteed bit rate and a maximum bit rate.

In an embodiment of the present application, the second message includes a first service establishment request message sent by the terminal, or a first service establishment request message sent to the terminal.

The device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 3 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Referring to Figure 8, an embodiment of the present application provides a communication processing device, which is applied to the second core network equipment. The device 800 includes:

The second receiving module 801 is configured to receive first parameters, where the first parameters include at least one of the following: parameters supported by the first service of the roaming network that provides services to the terminal. Parameters supported by the first bearer corresponding to the first service;

The third receiving module 802 is configured to receive a second message requesting the establishment of the first service;

The third determination module 803 is used to determine whether to accept the second message according to the first parameter.

In an embodiment of the present application, the second receiving module 801 is further configured to: receive the first parameter from a first core network device, where the first core network device includes: the PCF of the home network of the terminal, the at least one item in the home network PCRF of the terminal.

In an embodiment of the present application, the third determination module 803 includes:

a second determination unit, configured to determine fourth parameters according to the second message, where the fourth parameters include parameters of the first service requested to be established;

a second judgment unit, used to judge whether the first parameter matches the fourth parameter;

A second sending unit configured to send a fifth message when the first parameter matches the fourth parameter, where the fifth message is used to indicate acceptance of the second message; or, when the first parameter matches If the fourth parameter does not match, a sixth message is sent, and the sixth message is used to indicate rejection of the second message.

In an embodiment of the present application, the sixth message carries the first parameter.

In an embodiment of the present application, the second message includes a request message sent by the terminal to establish the first service, or a request message sent to the terminal to establish the first service.

In an embodiment of the present application, the second core network device includes: a proxy call session control function.

The device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 4 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Please refer to Figure 9. Figure 9 is a structural diagram of the core network equipment applied in the embodiment of the present application. As shown in Figure 9, the core network equipment 900 includes: a processor 901, a transceiver 902, a memory 903 and a bus interface, where the processing The controller 901 may be responsible for managing the bus architecture and general processing. Memory 1203 may store data used by processor 901 in performing operations.

In one embodiment of the present application, the core network device 900 also includes: a program stored in the memory 903 and executable on the processor 901. When the program is executed by the processor 901, the above method shown in Figure 3 or Figure 4 is implemented. step.

In Figure 9, the bus architecture may include any number of interconnected buses and bridges, specifically linked together by various circuits of one or more processors represented by processor 901 and memory represented by memory 903. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 902 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

Optionally, as shown in Figure 10, this embodiment of the present application also provides a communication device 1000, which includes a processor 1001 and a memory 1002. The memory 1002 stores programs or instructions that can be run on the processor 1001, such as , when the communication device 1000 is a core network device, the program or instruction When executed by the processor 1001, each step of the above method embodiment in Figure 3 or Figure 4 is implemented and can achieve the same technical effect. To avoid duplication, the details will not be described here.

Embodiments of the present application also provide a readable storage medium, with programs or instructions stored on the readable storage medium. When the program or instructions are executed by a processor, the method in Figure 3 or Figure 4 and each process of the above embodiments are implemented. , and can achieve the same technical effect, so to avoid repetition, they will not be described again here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement what is shown in Figure 3 or Figure 4 and each process of the above method embodiments, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

The embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement what is shown in Figure 3 or Figure 4 Each process of each of the above method embodiments is shown and can achieve the same technical effect. To avoid repetition, it will not be described again here.

An embodiment of the present application further provides a communication system. The communication system includes a terminal and a network-side device. The network-side device is used to execute each process of Figure 3 or Figure 4 and the above method embodiments, and can achieve the same The technical effects will not be repeated here to avoid repetition.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. executive functions, e.g. The described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A communication processing method, including:

The first core network device determines that the terminal is in roaming state;

The first core network device obtains a first parameter, and the first parameter includes at least one of the following: a parameter supported by a first service of a roaming network that provides services to the terminal. The terminal is in the roaming network. Parameters supported by the first bearer corresponding to the first service;

The first core network device receives a first message for requesting the establishment of the first bearer, and the first core network device determines whether to accept the first message according to the first parameter;

And/or, the first core network device sends the first parameter to the second core network device, and the first parameter is used by the second core network device to determine whether to accept the request to establish the first service. second news.
The method according to claim 1, wherein the first core network device determines whether to accept the first message according to the first parameter, including:

The first core network device determines second parameters according to the first message, and the second parameters include parameters of the first bearer requested to be established;

The first core network device determines whether the second parameter matches the first parameter;

When the second parameter matches the first parameter, the first core device sends a third message, where the third message is used to indicate acceptance of the first message;

Alternatively, when the second parameter does not match the first parameter, the first core device sends a fourth message, where the fourth message is used to indicate rejecting the first message.
The method according to claim 2, wherein the fourth message carries the first parameter.
The method according to claim 1, wherein the first core network device obtains the first parameter, including:

The first core network device obtains the first parameter from a third core network device. The third core network device includes: a unified data management UDM of the terminal's home network, a UDM of the terminal's home network, At least one of the home subscriber server HSS, the policy control function PCF of the roaming network, and the policy and charging rule function PCRF of the roaming network.
The method according to claim 1, wherein the value of the parameter supported by the first bearer corresponding to the first service of the roaming network by the terminal is the value of the first parameter and the value of the third parameter. , the third parameter includes a parameter supported by the first bearer corresponding to the first service of the terminal's home network.
The method according to claim 1, wherein the first core network device includes: a PCF of the terminal's home network or a home network PCRF of the terminal.
The method according to any one of claims 1 to 6, wherein the parameters include: at least one of a guaranteed bit rate and a maximum bit rate.
The method according to claim 1, wherein the second message includes a first service establishment request message sent by the terminal, or a first service establishment request message sent to the terminal.
The method of claim 1, wherein the second core network device includes a proxy call session control function.
A communication processing method, including:

The second core network device receives a first parameter, and the first parameter includes at least one of the following: a parameter supported by the first service of the roaming network that provides services to the terminal, and the terminal is in the first roaming network of the roaming network. Parameters supported by the first bearer corresponding to a service;

The second core network device receives a second message for requesting the establishment of the first service;

The second core network device determines whether to accept the second message according to the first parameter.
The method according to claim 10, wherein the second core network device receives the first parameter, including:

The second core network device receives the first parameter from the first core network device, and the first core network device includes: at least one of the PCF of the terminal's home network and the PCRF of the terminal's home network. .
The method according to claim 10, wherein the second core network device determines whether to accept the second message according to the first parameter, including:

The second core network device determines fourth parameters according to the second message, where the fourth parameters include parameters of the first service requested to be established;

When the second core network device determines that the first parameter matches the fourth parameter, the second core device sends a fifth message, where the fifth message is used to indicate acceptance of the second message;

Alternatively, when the second core network device determines that the first parameter does not match the fourth parameter, the second core device sends a sixth message, where the sixth message is used to indicate rejection of the second message. .
The method according to claim 12, wherein the sixth message carries the first parameter.
The method according to claim 10, wherein the second message includes a request message sent by the terminal to establish the first service, or a request message sent to the terminal to establish the first service.
The method of claim 10, wherein the second core network device includes a proxy call session control function.
The method according to any one of claims 10 to 15, wherein the parameter includes: at least one of a guaranteed bit rate and a maximum bit rate.
A communication processing device applied to first core network equipment, wherein the device includes:

The first determination module is used to determine that the terminal is in a roaming state;

A first acquisition module, configured to acquire a first parameter, where the first parameter includes at least one of the following: a parameter supported by a first service of a roaming network that provides services to the terminal. The terminal is in the roaming network. Parameters supported by the first bearer corresponding to the first service;

A first receiving module configured to receive a first message requesting the establishment of the first bearer;

a second determination module, configured for the first core network device to determine whether to accept the first message according to the first parameter;

A first sending module, configured for the first core network device to send the first parameter to the second core network device, where the first parameter is used for the second core network device to determine whether to accept the request to establish the First business second news.
The device according to claim 17, wherein the second determining module includes:

A first determining unit configured to determine second parameters according to the first message, where the second parameters include parameters of the first bearer requested to be established;

A first determination unit, used to determine whether the second parameter matches the first parameter;

A first sending unit configured to send a third message when the second parameter matches the first parameter, where the third message is used to indicate acceptance of the first message; or, when the second parameter matches When it does not match the first parameter, a fourth message is sent, and the fourth message is used to indicate rejecting the first parameter. A message.
The apparatus according to claim 18, wherein the first determination module is further configured to: obtain the first parameter from a third core network device, the third core network device includes: the home network of the terminal At least one of the UDM, the HSS of the terminal's home network, the PCF of the roaming network, and the PCRF of the roaming network.
A communication processing device applied to second core network equipment, wherein the device includes:

The second receiving module is configured to receive first parameters, where the first parameters include at least one of the following: parameters supported by the first service of the roaming network that provides services to the terminal, and the terminal is in all locations of the roaming network. Parameters supported by the first bearer corresponding to the first service;

A third receiving module configured to receive a second message requesting the establishment of the first service;

A third determination module, configured to determine whether to accept the second message according to the first parameter.
The apparatus according to claim 20, wherein the second receiving module is further configured to: receive the first parameter from a first core network device, the first core network device includes: the PCF of the terminal's home network , at least one of the home network PCRF of the terminal.
The device according to claim 20, wherein the third determining module includes:

a second determination unit, configured to determine fourth parameters according to the second message, where the fourth parameters include parameters of the first service requested to be established;

a second judgment unit, used to judge whether the first parameter matches the fourth parameter;

A second sending unit configured to send a fifth message when the first parameter matches the fourth parameter, where the fifth message is used to indicate acceptance of the second message; or, when the first parameter matches If the fourth parameter does not match, a sixth message is sent, and the sixth message is used to indicate rejection of the second message.
A communication device, including a processor, a memory and a program or instructions stored on the memory and executable on the processor, wherein when the program or instructions are executed by the processor, the implementation as claimed in claim 1 to the steps of the method described in any one of 16.
A readable storage medium on which a program or instructions are stored, wherein the steps of the method according to any one of claims 1 to 16 are implemented when the program or instructions are executed by a processor.