CN116801333A

CN116801333A - Voice service processing method and device and communication equipment

Info

Publication number: CN116801333A
Application number: CN202210260739.0A
Authority: CN
Inventors: 崇卫微; 吴晓波
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2023-09-22

Abstract

The application discloses a processing method and a device for voice service and communication equipment, belonging to the technical field of communication, wherein the processing method for voice service in the embodiment of the application comprises the following steps: the method comprises the steps that an idle terminal obtains a paging message in a first network, wherein the paging message comprises first voice service fallback indication information, the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate voice service or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service, and the first voice service fallback indication information is determined by an access and mobility management function (AMF) device of the first network; and triggering a voice service fallback flow by the terminal according to the paging message.

Description

Voice service processing method and device and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and a device for processing voice service and communication equipment.

Background

For a User Equipment (UE, also referred to as a terminal) in an idle state, if a caller initiates a 5G voice service, based on an existing mechanism, the UE needs to initiate a 5G service request (5G service request) procedure to enter a 5G connection state first, and then trigger a procedure of dropping from the 5G network back to the 4G network; for another example, for a UE that is originally in an idle state, for example, as a called party of a voice service, based on an existing mechanism, the 5G network needs to page the UE in the 5G cell first, so that it enters a connected state, and then triggers a flow step of dropping from the 5G network back to the 4G network. It can be seen that, for the UE in the idle state, in the existing flow, no matter the UE is used as the calling party or the called party of the voice service, the UE needs to enter the 5G network connection state first, and then enter the 4G network through network switching or other modes. This makes the idle state UE to initiate the connection delay of the 5G voice service long, and the user experience is poor.

Disclosure of Invention

The embodiment of the application provides a processing method, a processing device and communication equipment for voice service, which can solve the problem of long continuous time delay of idle-state UE (user equipment) for initiating 5G voice service.

In a first aspect, a method for processing a voice service is provided, including:

the method comprises the steps that an idle terminal obtains a paging message in a first network, wherein the paging message comprises first voice service fallback indication information, the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate voice service or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service, and the first voice service fallback indication information is determined by an access and mobility management function (AMF) device of the first network;

and triggering a voice service fallback flow by the terminal according to the paging message.

In a second aspect, a method for processing a voice service is provided, including:

and under the condition that the terminal in the idle state needs to initiate the called voice service, the access and mobile management function AMF equipment of the first network sends a paging message to the terminal, wherein the paging message comprises first voice service fallback indication information, and the first voice service fallback indication information is used for indicating the terminal to initiate the voice service from the first network to the second network or is used for indicating the network to support the terminal to reselect to the second network so as to initiate the voice service.

In a third aspect, a method for processing a voice service is provided, including:

the method comprises the steps that session control gateway equipment obtains first indication information, wherein the first indication information is used for indicating the terminal to carry out a voice service fallback flow;

the session control gateway device executes a second operation according to the first indication information, wherein the second operation comprises at least one of the following:

suspending or ending the paging process for the terminal;

triggering the transmission of cached downlink data corresponding to the terminal in the second network.

In a fourth aspect, a processing apparatus for a voice service is provided, which is applied to an idle terminal, and includes:

the first acquisition module is used for acquiring a paging message in a first network, wherein the paging message comprises first voice service fallback indication information, the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate voice service, or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service, and the first voice service fallback indication information is determined by an access and mobile management function (AMF) device of the first network;

and the first processing module is used for triggering a voice service fallback flow according to the paging message.

In a fifth aspect, there is provided a processing apparatus for a voice service, applied to an AMF device of a first network, including:

the first sending module is used for sending a paging message to the terminal under the condition that the terminal in an idle state needs to initiate a called voice service, wherein the paging message comprises first voice service fallback indication information, and the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate the voice service or is used for indicating a network to support the terminal to reselect to the second network to initiate the voice service.

In a sixth aspect, a processing apparatus for a voice service is provided, which is applied to a session control gateway device, and includes:

the third acquisition module is used for acquiring first indication information, wherein the first indication information is used for indicating the terminal to perform a voice service fallback flow;

the execution module is used for executing a second operation according to the first indication information, and the second operation comprises at least one of the following steps:

suspending or ending the paging process for the terminal;

In a seventh aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

An eighth aspect provides a terminal, including a processor and a communication interface, where the communication interface is configured to obtain a paging message in a first network, where the paging message includes first voice service fallback indication information, where the first voice service fallback indication information is used to instruct the terminal to initiate a voice service from a first network fallback to a second network, or is used to instruct the network to support the terminal to reselect to the second network and initiate a voice service, where the first voice service fallback indication information is determined by an AMF device of the first network; the processor is used for triggering the voice service fallback flow according to the paging message.

In a ninth aspect, there is provided an access and mobility management function, AMF, device comprising a processor and a memory storing a program or instructions executable on said processor, said program or instructions implementing the steps of the method according to the second aspect when executed by said processor.

In a tenth aspect, there is provided a session control gateway apparatus comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the third aspect.

An eleventh aspect provides an AMF device, including a processor and a communication interface, where the communication interface is configured to send a paging message to a terminal in an idle state when it is determined that the terminal needs to initiate a called voice service, where the paging message includes first voice service fallback indication information, where the first voice service fallback indication information is used to instruct the terminal to fall back from the first network to a second network to initiate a voice service, or is used to instruct the network to support the terminal to reselect to the second network to initiate a voice service.

A twelfth aspect provides a session control gateway device, including a processor and a communication interface, where the communication interface is configured to obtain first indication information, where the first indication information is used to instruct the terminal to perform a voice service fallback procedure; the processor is configured to perform a second operation according to the first indication information, where the second operation includes at least one of:

suspending or ending the paging process for the terminal;

In a thirteenth aspect, a processing system for a voice service is provided, including: a terminal operable to perform the steps of the method of processing a voice service as described in the first aspect, an AMF device operable to perform the steps of the method of processing a voice service as described in the second aspect, and a session control gateway device operable to perform the steps of the method of processing a voice service as described in the third aspect.

In a fourteenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, perform the steps of the method according to the first aspect, or perform the steps of the method according to the second aspect, or perform the steps of the method according to the third aspect.

In a fifteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect, or to implement the method as described in the third aspect.

In a sixteenth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to perform the steps of the method according to the first aspect, or to perform the method according to the second aspect, or to perform the method according to the third aspect.

In the embodiment of the application, an idle terminal acquires a paging message including first voice service fallback indication information in a first network, wherein the first voice service fallback indication information is used for indicating that the terminal is fallback from the first network to a second network to initiate voice service, or is used for indicating that the network supports the terminal to reselect to the second network to initiate voice service; according to the paging message, triggering the voice service fallback flow, namely, reselecting the terminal to the second network to initiate the voice service, avoiding the terminal from entering a connection state in the first network and then falling back to the second network, thereby saving the call delay.

Drawings

Fig. 1 is a block diagram showing a communication system to which an embodiment of the present application is applicable;

fig. 2 is a flow chart of a processing method of a voice service according to an embodiment of the present application;

FIG. 3 is a second flow chart illustrating a method for processing voice services according to an embodiment of the present application;

FIG. 4 is a third flow chart illustrating a method for processing voice services according to an embodiment of the present application;

FIG. 5 is an interactive schematic diagram of a method for processing a voice service according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a voice service processing device according to an embodiment of the present application;

fig. 7 is a block diagram showing the configuration of a communication device according to an embodiment of the present application;

fig. 8 is a block diagram showing the structure of a terminal according to an embodiment of the present application;

FIG. 9 is a second block diagram of a voice service processing apparatus according to an embodiment of the present application;

FIG. 10 is a third block diagram illustrating a processing apparatus for voice services according to an embodiment of the present application;

fig. 11 is a block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, 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 terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Fre) quency Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a 5G system for purposes of example and uses 5G terminology in much of the description that follows, but the techniques are also applicable to applications other than 5G system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in a 5G system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: 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 functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the 5G system is described as an example, and the specific type of the core network device is not limited.

The following describes in detail the processing method of the voice service provided by the embodiment of the present application through some embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present application provides a method for processing a voice service, including:

step 201: the terminal in the idle state obtains a paging message in a first network, wherein the paging message comprises first voice service fallback indication information, and the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate voice service or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service, wherein the first voice service fallback indication information is determined by an access and mobility management function (AMF) device of the first network.

Optionally, in the embodiment of the present application, the first network and the second network are networks under different systems, or the first network and the second network are networks under the same system but different systems. For example: and if the system or the system of the first network evolves after the system or the system of the second network, reselecting the terminal from the first network to the second network to realize that the terminal falls back to the pre-evolution system from the post-evolution system or falls back to a low system from a high system for voice service. The first network may be embodied as a new air interface NR 5G network and the second network may be embodied as an LTE 4G network; alternatively, the first network may be embodied as an NR 5G network and the second network may be embodied as an evolved access network e-UTRAN 5G network; alternatively, the first network may be embodied as an e-UTRAN 5G network and the second network may be embodied as an e-UTRAN 4G network.

The Network support may refer to a first Network or a second Network support, or may refer to a first Network and a second Network support, and the Network support may be a radio access Network (Radio Access Network, RAN), a Core Network (CN) support, and/or a cell support.

The terminal is in an idle state, and in this step, the AMF in the first network sends a paging message including a voice service fallback instruction to the terminal, so that the terminal fallback to the second network initiates the voice service based on the paging message.

Step 202: and triggering a voice service fallback flow by the terminal according to the paging message.

Specifically, the terminal reselects to the second network according to the paging message, such as reselecting from the 5G network to the 4G network, to initiate voice service.

In addition, it should be noted that, the voice service initiation in the embodiment of the present application may specifically refer to a called voice service initiation, that is, the terminal is a called terminal of the voice service.

The Voice service initiated by the terminal in the second network in the embodiment of the present application may be specifically a Voice over Long-Term Evolution (VoLTE) Voice service.

In the embodiment of the application, a terminal acquires a paging message comprising first voice service fallback indication information, wherein the first voice service fallback indication information is used for indicating the terminal to fall back from a first network to a second network to initiate voice service, or is used for indicating a network to support the terminal to reselect to the second network to initiate voice service; according to the paging message, triggering the voice service fallback flow, namely, reselecting the terminal to the second network to initiate the voice service, avoiding the terminal from entering a connection state in the first network and then falling back to the second network, thereby saving the call delay.

Optionally, the method (before the terminal acquires the paging message) further comprises:

the terminal reports capability information to an AMF device of the access and mobile management function of the first network;

the capability information is used for indicating whether the terminal has a first capability, and the first capability comprises at least one of the following:

the terminal in the idle state supports the capability of reselecting from the first network to the second network to initiate voice service;

after acquiring the paging message including the first voice service fallback indication information, the idle terminal supports the capability of reselecting the first network to the second network to initiate voice service (UE capability of paging indication for EPS fallback).

Specifically, after the terminal initiates a registration procedure to the first network or in the process that the terminal initiates the registration procedure to the first network, the terminal reports capability information to an AMF device of the first network.

The registration procedure may be an initial registration procedure (initial registration) or a mobility registration procedure (mobility registration) or a periodic registration procedure (periodic registration). Of course, the UE may report the capability information of the UE through Non-Access Stratum (NAS) signaling (such as a service request message) at other moments after registering to the first network.

Optionally, the paging message is sent by the AMF device if the terminal is provided with the first capability.

Optionally, the terminal triggers a voice service fallback procedure according to the paging message, including:

the terminal executes a cell reselection flow to access the second network according to the first voice service fallback indication information in the paging message;

the terminal receives a called voice service signaling message transmitted through the second network;

and the terminal executes the called voice service flow in the second network according to the called voice service signaling message.

Optionally, before the terminal receives the called voice service signaling message transmitted through the second network, the method further includes:

and the terminal sends a registration request message or a Tracking Area Update (TAU) request message to mobile management function (MME) equipment of the second network.

Here, if the first network is specifically an NR 5G network and the second network is specifically an e-UTRAN 5G network, the mobility management function MME device of the second network at this time is an AMF device of the first network, and the terminal sends a registration request message to the AMF (registration request).

Optionally, the method of the embodiment of the present application further includes:

and the terminal sends a first message to the AMF equipment, wherein the first message is used for rejecting the paging message.

Optionally, the first message is a service request (service request) message. Optionally, the service type carried by the service request message is a terminal terminating service (mobile terminated services), and the carried request type is a refusal page (Rejection of paging).

Optionally, the first message includes second voice service fallback indication information, where the reason why the terminal rejects the paging message is that the terminal triggers a voice service fallback procedure. Optionally, the second language service fallback indication information is further used for indicating that the reason that the terminal refuses the paging message is that the terminal reselects to the second network triggers a language service fallback procedure.

As shown in fig. 3, the embodiment of the present application further provides a method for processing a voice service, including:

step 301: and under the condition that the terminal in the idle state needs to initiate the called voice service, the access and mobile management function AMF equipment of the first network sends a paging message to the terminal, wherein the paging message comprises first voice service fallback indication information, and the first voice service fallback indication information is used for indicating the terminal to initiate the voice service from the first network to the second network or is used for indicating the network to support the terminal to reselect to the second network so as to initiate the voice service.

In the embodiment of the present application, under the condition that it is determined that an idle terminal needs to initiate a called voice service, an AMF device of a first network initiates a paging message to a UE by using a radio access network (Radio Access Network, RAN) device of the first network, where the paging message includes the above-mentioned first voice service fallback indication information (e.g., evolved packet system (Evolved Packet System, EPS) fallback indication information (fallback indication), that is, EPS fallback indication.

In the embodiment of the application, the AMF of the first network sends the paging message comprising the first voice service fallback indication information to the terminal, so that the terminal triggers the voice service fallback flow according to the paging message, namely, the terminal reselects to the second network to initiate the voice service, thereby avoiding the terminal from entering a connection state in the first network and falling back to the second network, and further saving the call delay.

the AMF equipment acquires capability information reported by the terminal, wherein the capability information is used for indicating whether the terminal has first capability or not, and the first capability comprises at least one of the following:

the terminal in the idle state supports the capability of reselecting from a first network to a second network to initiate voice service;

After the terminal in the idle state acquires the paging message including the first voice service fallback indication information, the terminal supports the capability of reselecting the voice service initiated by the first network to the second network (UE capability of paging indication for EPS fallback).

Optionally, the AMF device sends a paging message to the terminal, including:

and the AMF equipment sends the paging message to the terminal under the condition that the terminal is determined to have the first capability according to the capability information.

In an embodiment of the present application, before sending the paging message to the terminal, the AMF device determines whether the terminal has the first capability according to capability information of the terminal, and after determining that the terminal specifically has the first capability, the terminal carries the first voice service fallback indication information in the paging message.

the AMF device performs a first operation, wherein the first operation comprises at least one of:

ending the paging process of the terminal;

reducing paging frequency to the terminal;

and starting a second timer, wherein the second timer is used for monitoring whether the terminal is accessed from a second network.

Here, the AMF device performs the first operation after triggering a paging procedure of the terminal.

Specifically, for ending the paging procedure for the terminal, at least one of the following manners may be implemented, optionally, the AMF device sends a signaling transmission response message to the SMF device at the same time, where the signaling transmission response message indicates that the paging fails or ends:

and invalidating a first timer, wherein the first timer is a timer for paging monitoring of the terminal.

Reducing the paging frequency to the terminal may be accomplished by at least one of:

the AMF equipment resets the duration of the first timer so as to reduce the paging frequency of the terminal;

the AMF device instructs RAN device or session gateway control device of the first network to reset the paging timer duration of the terminal in the RAN according to the duration of the first timer so as to reduce the paging frequency of the terminal;

the AMF device sends the first timer duration to the session gateway control device, and the first timer duration is used for resetting the corresponding timer duration by the session gateway control device.

In a specific embodiment of the present application, after triggering the paging procedure of the UE, the AMF device invalidates the original paging monitoring timer (i.e. the first timer) of the UE, and starts a new timer (the second timer) to monitor whether the UE is accessed from the second network; or, the AMF device resets the duration of the original paging monitoring timer, and reduces the paging frequency to the UE. For example, the AMF device may set the paging monitor timer value longer than the original value, or the AMF may set the paging monitor timer value to a value greater than the second timer.

In the embodiment of the present application, after the second timer expires, the AMF may perform the following operations:

reinitiating paging in the first network;

the terminal is unregistered in a first network.

Optionally, after the AMF device sends the paging message to the terminal, the method further comprises:

the AMF equipment acquires a first message sent by the terminal, wherein the first message is used for rejecting the paging message;

the AMF device ends the paging process for the terminal, including:

and the AMF equipment ends the paging process of the terminal according to the first message.

Optionally, the first message includes second voice service fallback indication information, where the reason why the terminal rejects the paging message is that the terminal triggers a voice service fallback procedure.

Optionally, the second language service fallback indication information is further used for indicating that the reason that the terminal refuses the paging message is that the terminal reselects to the second network triggers a language service fallback procedure.

Optionally, determining that the terminal in the idle state needs to initiate the called voice service includes:

the AMF equipment receives a signaling transmission request message sent by session control gateway (PGW-C/SMF) equipment of the first network, wherein the signaling transmission request message comprises voice service indication information, and the voice service indication information is used for indicating that the signaling transmission request message is initiated by voice service;

And determining that the terminal in an idle state needs to initiate the called voice service according to the signaling transmission request message.

Here, the signaling transmission request message includes voice service indication information for indicating that the request message is initiated by voice service, in other words, the paging procedure is initiated by voice service. Triggering AMF to initiate paging procedure to the UE in idle state through the signaling transmission request message. The signaling transmission request message may specifically be a service call request of namf_communication_n1n2message transfer.

Optionally, the method further comprises:

the AMF equipment sends a signaling transmission response message to the session control gateway equipment, wherein the signaling transmission response message comprises first indication information, and the first indication information is used for indicating the terminal to carry out a voice service fallback procedure.

Here, the AMF device responds to the signaling transmission request message transmitted by the session control gateway device by transmitting the above-described signaling transmission response message. The signaling response message may be used to indicate that the signaling request message is rejected or that the signaling request message is accepted.

Further, the first indication information is used for indicating that the terminal is proceeding or is about to perform a voice service fallback procedure (e.g. after the target duration). The first indication information may be fall-back indication information (EPS fallback indication), reselection indication information, handover indication information, or the like. Accordingly, after the PGW-C/SMF receives the first indication information, the PGW-C/SMF may stop the current paging waiting for the UE or avoid paging again, and wait for the UE to access from the second network.

Optionally, the sending, by the AMF device, a signaling transmission response message to the session control gateway device includes:

and the AMF equipment sends the signaling transmission response message to the session control gateway equipment according to the second voice service fallback indication information included in the first message.

Optionally, the method further comprises:

the AMF device sends a signaling transmission response message to the session control gateway device, wherein the signaling transmission response message comprises waiting time information, and the waiting time information is used for indicating time information required by the terminal to fall back from the first network to the second network.

The signaling response message is specifically namf_communication_n1n MessageTransfer response or namf_communication_n1n Transfer Failure Notification.

Here, the AMF transmits a signaling transmission response message including latency information to the session control gateway apparatus to cause the session control gateway apparatus to evaluate a time required to wait for the UE to access from the second network, in other words, a buffering maximum time required for the session control gateway apparatus to evaluate the UE's downlink data, based on the latency information. Correspondingly, after receiving the waiting time information, the session control gateway device itself or the control user plane gateway (PGW-U/UPF) caches the downlink data for a period of time, and after exceeding the period of time, the session control gateway device itself or the control PGW-U/UPF discards the downlink data of the UE.

the AMF device obtains a context obtaining request message sent by the MME device of the second network, wherein the context obtaining request message is used for obtaining user context information corresponding to the terminal.

The context acquisition request message is sent by the MME device according to a TAU request message or a registration request Attach message sent by the terminal, wherein the TAU request message or the registration request message is sent to the MME device after the terminal reselects to the second network.

In the embodiment of the application, the UE decides to trigger reselection to the second network to initiate voice service according to the first voice service fallback indication information (EPS fallback indication) in the paging message. Specifically, the UE performs a cell reselection procedure to access the second network. The UE sends a TAU request message to the MME device to trigger a registration procedure in the second network. The MME sends a context acquisition request message to the AMF according to the TAU request message for acquiring the context of the UE.

Optionally, the method further comprises:

and the AMF equipment acquires the request message according to the context and ends the paging process of the terminal.

Here, the AMF device determines that the terminal accesses the second network by triggering the voice service fallback procedure according to the context acquisition request message.

Specifically, the AMF device determines that the UE has triggered a voice service fallback procedure according to the following factors:

the AMF equipment sends a paging message to the UE;

the AMF equipment receives a context acquisition request message for the UE, which is sent by the MME equipment.

In addition, the AMF device stops the original paging mechanism for the UE according to the context acquisition request message, including resetting the paging timer of the UE or stopping paging the UE again.

Optionally, the method further comprises:

the AMF device sends a session context request message to the session control gateway device, wherein the session context request message comprises first indication information, and the first indication information is used for indicating the terminal to perform a voice service fallback procedure.

Specifically, the first indication information may be fallback indication information (EPS fallback indication), reselection indication information, handover indication information, or the like. Accordingly, after receiving the first indication information, the session control gateway device may stop the current paging waiting for the UE or avoid paging again, and wait for the UE to access from the second network.

Here, the AMF device determines, according to the context acquisition request message, that the terminal has accessed the second network by triggering the voice service fallback procedure, and then sends a session context request message to the session control gateway device, so as to acquire the session context of the UE in the network.

Optionally, the method further comprises:

and the AMF equipment determines that the terminal equipment accesses the second network by triggering a voice service fallback flow according to the context acquisition request message.

It should be noted that this step may occur after the AMF device acquires the context acquisition request message sent by the MME device of the second network, or before the AMF device ends the paging procedure for the terminal according to the context acquisition request message, or before the AMF device sends the session context request message to the first network device.

As shown in fig. 4, the embodiment of the present application further provides a method for processing a voice service, including:

step 401: the session control gateway equipment acquires first indication information, wherein the first indication information is used for indicating the terminal to carry out a voice service fallback flow.

Specifically, the first indication information is used for indicating that the terminal is performing or is about to perform a voice service fallback procedure (e.g. after a target duration). The voice service fallback flow is triggered by the terminal according to a paging message carrying first voice service fallback indication information, wherein the first voice service fallback indication information is used for enabling the terminal to fall from a first network to a second network to initiate voice service or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service, and the first voice service fallback indication information is determined by an access and mobility management function (AMF) device of the first network.

Step 402: the session control gateway device executes a second operation according to the first indication information, wherein the second operation comprises at least one of the following:

suspending or ending the paging process for the terminal;

Specifically, after the UE accesses the second network, the UE starts to trigger transmission of the downlink data. How to determine to access the second network, and after acquiring downlink RAN (eNB) address information or tunnel endpoint information according to a received bearer modification request (modify bearer request) message sent by the SGW of the second network, the determined UE accesses the second network.

In the embodiment of the application, a session control gateway (PGW-C/SMF) device obtains first indication information, where the first indication information is used to instruct the terminal to perform a voice service fallback procedure, suspend or end a paging procedure for the terminal according to the first indication information, and/or trigger transmission of cached downlink data corresponding to the terminal in the second network, so that special processing is performed on the UE through the first network, and abnormal processing caused by the UE leaving the first network is avoided.

Optionally, the session control gateway device obtains first indication information, including:

the session control gateway device receives a signaling transmission response message sent by the AMF device, wherein the signaling transmission response message comprises the first indication information;

the first indication information is determined by the AMF equipment according to the second voice service fallback indication information included in a first message, and the first message is used for rejecting the paging message sent by the AMF equipment by the terminal.

Optionally, before the session control gateway device receives the signaling transmission response message sent by the AMF device, the method further includes:

and the session control gateway equipment initiates a signaling transmission request message to the AMF equipment according to the downlink voice service signaling, wherein the signaling transmission request message comprises voice service indication information.

Optionally, the session control gateway device obtaining the first indication information includes:

the session control gateway device receives a session context request message sent by the AMF device, wherein the session context request message comprises the first indication information;

the session context request message is sent by the AMF device after determining that the terminal accesses the second network by triggering a voice service fallback procedure.

Optionally, the signaling response message includes latency information, the latency information being used to indicate time information required for the terminal to fall back from the first network to the second network.

Optionally, the method further comprises:

and under the condition that the buffer time of the downlink data of the terminal is determined to be overtime according to the waiting time information, the session control gateway equipment triggers a flow of discarding the downlink data of the terminal.

Specifically, the session control gateway device may discard the downlink processing of the terminal itself, or may instruct the UPF/PGW-U to discard the downlink data of the terminal.

In a specific embodiment of the present application, the first network is a 5G network, the second network is a 4G network, and as shown in fig. 5, the method for processing a voice service includes:

step 500: and after the UE initiates a registration process to the 5G network, the UE reports the capability information of the UE to the 5GC network.

Wherein, the capability information reported by the UE here includes at least one of the following:

the idle state UE supports the capability of reselecting to the 4G network to initiate (calling and/or called) VoLTE voice services;

after acquiring a paging signaling carrying EPS FB (EPS fallback) voice service indication information, the idle-state UE supports the capability of reselecting to a 4G network to initiate a called VoLTE voice service.

The registration procedure may be an initial registration procedure (initial registration) or a mobility registration procedure (mobility registration) or a periodic registration procedure (periodic registration). Of course, the UE may report the capability information of the UE through NAS signaling (such as a service request message) at other moments after registering to the 5GC network.

Step 501: a user plane gateway (PGW-U/UPF) obtains a called service request message (session initiation protocol request (Session initialization Protocol invite, SIP invite) from an IP multimedia subsystem (IP Multimedia Subsystem, IMS) network for a UE, and if a user plane tunnel (e.g., an N3 tunnel) for the UE does not exist, the PGW-U/UPF sends a downlink data notification message (downlink data notification) to a control plane gateway (PGW-C/SMF).

Wherein the PGW-U/UPF carries voice service indication information in the downlink data notification message, and is used for informing the PGW-C/SMF that the downlink data notification message (downlink data notification) is initiated by voice service. Specifically, the PGW-U/UPF may identify, based on the DSCP/TOS/TOC field in the downstream packet header, that the packet is a packet of a voice service, and further carry voice service indication information in the downstream data notification message.

Step 502: the PGW-C/SMF initiates a signaling transmission request message to the AMF, and the signaling transmission request message is used for triggering the AMF to initiate a paging procedure for the idle-state UE.

The signaling message includes voice service indication information, which is used to indicate that the request message is initiated by voice service, in other words, the paging procedure is initiated by voice service.

The signaling transmission request message may specifically be a service call request of namf_communication_n1n2message transfer.

Step 503: according to the step 502 message, the AMF triggers a paging procedure for the idle UE if it determines that the idle UE needs to initiate a called voice service.

Specifically, the AMF initiates a paging message to the UE by using the NG RAN, where the paging message carries first voice service fallback indication information (EPS fallback indication) that is used to indicate that the UE needs to fall back to the 4G network to initiate a voice service, or indicates that the UE may initiate a voice service by using a fallback to the 4G network mechanism.

Optionally, before initiating a paging message to the UE, the AMF determines, according to the UE capability information, whether the foregoing indication information needs to be carried in the paging message. In one implementation, if the AMF determines that the UE reports at least one of the capability information described in step 500, the AMF carries the foregoing voice service indication information or the first voice service fallback indication information in the paging message.

Meanwhile, after triggering the paging procedure of the UE, the AMF optionally performs at least one of the following operations related to timer setting:

operation 1: the AMF invalidates the original paging monitoring timer for the UE, and starts a new timer for monitoring whether the UE is accessed from the 4G network;

operation 2: AMF resets the original paging monitoring timer time length, and reduces the paging frequency to the UE. For example, the AMF may set the paging monitor timer value longer than the original value, or the AMF may set the paging monitor timer value to a value greater than the new timer in operation 1.

Step 504: the AMF sends a signaling transmission response message to the PGW-C/SMF for responding to the signaling transmission request message received in step 502.

Wherein the signaling response message may be used to indicate that the signaling request is denied or to indicate that the signaling request is accepted.

Optionally, the signaling transmission response message may carry first indication information, which is used to indicate that the UE is/is about to perform voice service fallback to the 4G network flow. Specifically, the first indication information may be a representation form such as fallback indication information (evolved packet system (Evolved Packet System, EPS) fallback indication information (fallback indication)) or reselection indication information or handover indication information. Accordingly, after the PGW-C/SMF receives the first indication information, the PGW-C/SMF may stop the current paging waiting for the UE or avoid paging again, and wait for the UE to access from the 4G network.

Optionally, the signaling response message may carry latency information, which is used to indicate the estimated time required for the UE to fall back to the 4G network. The waiting time information is used for PGW-C/SMF evaluation for a time required to wait for UE to access from 4G, in other words, for PGW-C/SMF evaluation for a maximum buffering time of UE downlink data. Accordingly, after receiving the waiting time information, the PGW-C/SMF itself or the PGW-U/UPF is controlled to buffer downlink data for a period of time, and after exceeding the period of time, the PGW-C/SMF itself or the PGW-U/UPF is controlled to discard the downlink data of the UE.

Specifically, the signaling response message is namf_communication_n1n MessageTransfer response or namf_communication_n1n Transfer Failure Notification.

In step 505, the UE determines that the called voice service needs to be initiated according to the paging signaling, and decides and performs reselection to the 4G procedure, so that VoLTE service can be performed in the 4G network.

The UE decides to trigger reselection to the 4G network to initiate voice service according to the first voice service fallback indication information (EPS fallback indication) in the paging message. Specifically, the UE performs a cell reselection procedure to access the 4G cell.

In step 506, the ue sends a TAU request message to the MME to trigger the registration procedure in the 4G network.

Step 507: the MME sends a context acquisition request message to the AMF according to the TAU request message for acquiring the context of the UE.

Step 508: the AMF determines that the UE accesses the 4G network by triggering a voice service fallback flow according to the context acquisition request message.

Specifically, the AMF determines that the UE has triggered a voice service fallback procedure according to the following factors:

AMF sends paging message to UE;

the AMF receives a context acquisition request message for the UE, which is sent by the MME.

In addition, the AMF stops the original paging mechanism for the UE according to the context acquisition request message, including resetting the paging timer of the UE or stopping paging the UE again.

Step 509: the AMF sends a session context request message to the SMF/PGW-C for acquiring the session context of the UE in the network.

Optionally, the AMF carries first indication information in the session context request message, which is used to indicate that the UE is/is about to perform voice service fallback to the 4G network flow. Specifically, the first indication information may be fallback indication information (EPS fallback indication), reselection indication information, handover indication information, or the like. Accordingly, after the PGW-C/SMF receives the first indication information, the PGW-C/SMF may stop the current paging waiting for the UE or avoid paging again, and wait for the UE to access from the 4G network.

Step 510: the SMF transmits session context information of the UE in the network to the AMF.

Step 511: the TAU procedure continues to end.

The remaining steps of the TAU procedure are the same as those of the existing UE, specifically referring to 3gpp TS 23.401.

In the above process, after the SMF/PGW-C obtains the tunnel identifier and the port number corresponding to the voice service signaling tunnel, the UPF/PGW-U can be instructed to downlink and send the cached voice signaling data packet. The voice service signaling tunnel is an N3 tunnel with 5 qi=5 in the 5G network, and corresponds to an EPS bearer with qci=5 in the 4G network. In addition, the SMF/PGW-C identifies that the tunnel identifier and the port number corresponding to the voice service signaling tunnel have been acquired according to the RAN tunnel identifier and the port number corresponding to the EPS bearer with qci=5 contained in the modify bearer request message sent by the received SGW.

Correspondingly, the buffered downlink voice signaling data packet (SIP invite message) is sent to the ENB via the UPF/PGW-U for transmission to the UE.

Step 512: after the 4G network receives the cached downlink voice signaling data packet (SIP invite message), the UE triggers other steps of the called voice service until the voice service is continued and ended.

In the embodiment of the application, under the condition that the idle state UE is used as a voice service called party, the network notifies the UE of voice service occurrence in a paging process, the UE can directly reselect to a 4G cell to directly execute VoLTE service, the situation that the UE enters a connection state in a 5G network and then falls back to 4G is avoided, and a certain call delay can be saved. Meanwhile, the 5GC network can perform special treatment on the UE, so that abnormal treatment caused by the fact that the UE leaves 5G is avoided.

According to the voice service processing method provided by the embodiment of the application, the execution main body can be a voice service processing device. In the embodiment of the application, a processing method for executing a voice service by a processing device for a voice service is taken as an example, and the processing device for a voice service provided by the embodiment of the application is described.

As shown in fig. 6, the embodiment of the present application further provides a processing apparatus 600 for voice service, which is applied to an idle state terminal, and includes:

A first obtaining module 601, configured to obtain a paging message in a first network, where the paging message includes first voice service fallback indication information, where the first voice service fallback indication information is used to instruct the terminal to fallback from the first network to a second network to initiate a voice service, or is used to instruct the network to support reselection of the terminal to the second network to initiate a voice service, where the voice service fallback indication information is determined by an AMF device of an access and mobility management function of the first network;

the first processing module 602 is configured to trigger a voice service fallback procedure according to the paging message.

Optionally, the device of the embodiment of the present application further includes:

the first reporting module is used for reporting capability information to the AMF equipment with the access and mobile management functions of the first network;

after acquiring paging information comprising first voice service fallback indication information, the idle-state terminal supports the capability of reselecting from the first network to the second network to initiate voice service;

Optionally, in the apparatus of the embodiment of the present application, the first processing module includes:

the first processing sub-module is used for executing a cell reselection flow to access the second network according to the first voice service fallback indication information in the paging message;

a first receiving sub-module, configured to receive a called voice service signaling message transmitted through the second network;

and the second processing sub-module is used for executing the called voice service flow in the second network according to the called voice service signaling message.

Optionally, in the apparatus of the embodiment of the present application, the first processing module further includes:

and the first sending submodule is used for sending a registration request Attach message or a tracking area update TAU request message to the mobility management function (MME) equipment of the second network before the first receiving submodule receives the called voice service signaling message transmitted by the second network.

and the second sending module is used for sending a first message to the AMF equipment, wherein the first message is used for rejecting the paging message.

In the embodiment of the application, a paging message comprising first voice service fallback indication information is obtained, wherein the first voice service fallback indication information is used for indicating the terminal to fall back from a first network to a second network to initiate voice service, or is used for indicating the network to support the terminal to reselect to the second network to initiate voice service; according to the paging message, triggering the voice service fallback flow, namely, reselecting the terminal to the second network to initiate the voice service, avoiding the terminal from entering a connection state in the first network and then falling back to the second network, thereby saving the call delay.

The processing device for voice service in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The processing device for voice service provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or instructions that can be executed on the processor 701, for example, when the communication device 700 is a terminal, the program or instructions implement, when executed by the processor 701, the steps of the foregoing embodiment of the processing method applied to a voice service on the terminal side, and achieve the same technical effects. When the communication device 700 is a network side device (such as an AMF device or a session control gateway device), the program or the instruction implements the steps of the above-mentioned processing method embodiment of the voice service when being executed by the processor 701, and the same technical effects can be achieved, so that repetition is avoided, and no description is repeated here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for acquiring a paging message from a first network, the paging message comprises first voice service fallback indication information, the first voice service fallback indication information is used for indicating the terminal to initiate voice service from the first network to a second network or is used for indicating the network to support the terminal to reselect to the second network and initiate voice service, and the first voice service fallback indication information is determined by an access and mobile management function (AMF) device of the first network; and the processor is used for triggering the voice service fallback flow according to the paging message. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.

Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 809 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

The radio frequency unit 801 is configured to obtain a paging message from a first network, where the paging message includes first voice service fallback indication information, where the first voice service fallback indication information is used to instruct the terminal to fallback from the first network to a second network to initiate a voice service, or is used to instruct the network to support reselection of the terminal to the second network to initiate a voice service, where the first voice service fallback indication information is determined by an AMF device of an access and mobility management function of the first network; and the processor 810 is configured to trigger a voice service fallback procedure according to the paging message.

Optionally, the radio frequency unit 801 is further configured to:

reporting capability information to an access and mobility management function AMF device of the first network;

Optionally, the processor 810 is further configured to:

executing a cell reselection procedure to access the second network according to the first voice service fallback indication information in the paging message;

receiving, by the radio frequency unit 801, a called voice service signaling message transmitted through the second network;

and executing the called voice service flow in the second network according to the called voice service signaling message.

Optionally, the radio frequency unit 801 is further configured to:

Before receiving a called voice service signaling message transmitted through the second network, a registration request Attach message or a tracking area update TAU request message is sent to mobile management function (MME) equipment of the second network.

Optionally, the radio frequency unit 801 is further configured to:

and sending a first message to the AMF equipment, wherein the first message is used for rejecting the paging message.

As shown in fig. 9, the embodiment of the present application further provides a processing apparatus 900 for a voice service, which is applied to an AMF device of a first network, including:

a first sending module 901, configured to send a paging message to a terminal when it is determined that an idle terminal needs to initiate a called voice service, where the paging message includes first voice service fallback indication information, where the first voice service fallback indication information is used to instruct the terminal to fall back from the first network to the second network to initiate a voice service, or is used to instruct a network to support the terminal to reselect to the second network and initiate a voice service.

the second obtaining module is used for obtaining the capability information reported by the terminal, wherein the capability information is used for indicating whether the terminal has a first capability or not, and the first capability comprises at least one of the following:

and after the terminal in the idle state acquires the paging message comprising the first voice service fallback indication information, supporting the capability of reselecting the voice service initiated by the first network to the second network.

Optionally, the first sending module is configured to send the paging message to the terminal by using the AMF device if it is determined that the terminal has the first capability according to the capability information.

a second processing module for performing a first operation, wherein the first operation comprises at least one of:

ending the paging process of the terminal;

reducing paging frequency to the terminal;

a fourth obtaining module, configured to obtain, after the first sending module sends a paging message to the terminal, a first message sent by the terminal, where the first message is used to reject the paging message;

and the second processing module is used for ending the paging process of the terminal according to the first message.

a first receiving module, configured to receive a signaling transmission request message sent by a session control gateway device of the first network, where the signaling transmission request message includes voice service indication information;

and the first determining module is used for determining that the terminal in an idle state needs to initiate the called voice service according to the signaling transmission request message.

and the third sending module is used for sending a signaling transmission response message to the session control gateway equipment, wherein the signaling transmission response message comprises first indication information, and the first indication information is used for indicating the terminal to carry out a voice service fallback flow.

Optionally, the third sending module is configured to send the signaling transmission response message to the session control gateway device according to the second voice service fallback indication information included in the first message.

and a fourth sending module, configured to send a signaling transmission response message to the session control gateway device, where the signaling transmission response message includes latency information, and the latency information is used to indicate time information required for the terminal to fall back from the first network to the second network.

a fifth obtaining module, configured to obtain a context obtaining request message sent by an MME device of the second network, where the context obtaining request message is used to obtain user context information corresponding to the terminal.

and the third processing module is used for obtaining the request message according to the context and ending the paging process of the terminal.

and the fifth sending module is used for sending a session context request message to the session control gateway equipment, wherein the session context request message comprises first indication information, and the first indication information is used for indicating the terminal to carry out a voice service fallback procedure.

and the second determining module is used for determining that the terminal equipment accesses the second network by triggering a voice service fallback flow according to the context acquisition request message.

As shown in fig. 10, the embodiment of the present application further provides a processing apparatus 1000 for a voice service, which is applied to a session control gateway device, and includes:

a third obtaining module 1001, configured to obtain first indication information, where the first indication information is used to instruct the terminal to perform a voice service fallback procedure;

an execution module 1002, configured to execute a second operation according to the first indication information, where the second operation includes at least one of the following:

suspending or ending the paging process for the terminal;

Optionally, the third obtaining module is configured to receive a signaling transmission response message sent by the AMF device, where the signaling transmission response message includes the first indication information;

and the sixth sending module is used for initiating a signaling transmission request message to the AMF equipment according to the downlink voice service signaling before the third obtaining module receives the signaling transmission response message sent by the AMF equipment, wherein the signaling transmission request message comprises voice service indication information.

Optionally, the third obtaining module is configured to receive a session context request message sent by the AMF device, where the session context request message includes the first indication information;

and the discarding module is used for triggering a flow of discarding the downlink data of the terminal under the condition that the buffer time of the downlink data of the terminal is determined to be overtime according to the waiting time information.

The embodiment of the application also provides network side equipment, which is particularly AMF equipment of a first network, and comprises a processor and a communication interface, wherein the communication interface is used for sending a paging message to the terminal under the condition that the terminal in an idle state needs to initiate a called voice service, the paging message comprises first voice service fallback indication information, and the first voice service fallback indication information is used for indicating the terminal to fall back from the first network to a second network to initiate the voice service, or is used for indicating the network to support the terminal to reselect to the second network to initiate the voice service. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

The embodiment of the application also provides a network side device, which is particularly session control gateway equipment, and comprises a processor and a communication interface, wherein the communication interface is used for acquiring first indication information, and the first indication information is used for indicating the terminal to carry out a voice service fallback flow; the processor is configured to perform a second operation according to the first indication information, where the second operation includes at least one of: suspending or ending the paging process for the terminal; triggering the transmission of cached downlink data corresponding to the terminal in the second network.

Specifically, the embodiment of the application also provides a network side device (an AMF device or a session control gateway device of the first network). As shown in fig. 11, the network side device 1100 includes: a processor 1101, a network interface 1102, and a memory 1103. The network interface 1102 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1100 of the embodiment of the present application further includes: instructions or programs stored in the memory 1103 and capable of being executed on the processor 1101, the processor 1101 calls the instructions or programs in the memory 1103 to execute the method executed by each module shown in fig. 9 or 10, and achieve the same technical effects, so that repetition is avoided, and therefore, the description is omitted herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned processing method embodiment of the voice service, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

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

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the processing method embodiment of the voice service, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiment of the present application further provides a computer program/program product, where 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 each process of the above-mentioned processing method embodiment of the voice service, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a processing system of the voice service, which comprises the following steps: the terminal can be used for executing the steps of the processing method of the voice service applied to the terminal, and the network side device can be used for executing the steps of the processing method of the voice service applied to the AMF device or the session control gateway device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, 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.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for processing a voice service, comprising:

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

and after the terminal in the idle state acquires the paging message comprising the first voice service fallback indication information, supporting the capability of reselecting the first network to the second network to initiate the voice service.

3. The method of claim 2, wherein the paging message is sent by the AMF device if the terminal is provided with the first capability.

4. The method according to claim 1 or 2, wherein the terminal triggers a voice service fallback procedure according to the paging message, comprising:

5. The method of claim 4, wherein prior to the terminal receiving the called voice service signaling message transmitted via the second network, the method further comprises:

6. The method according to claim 1, wherein the method further comprises:

7. The method of claim 6, wherein the first message includes second voice service fallback indication information, and wherein the second voice service fallback indication information is used to indicate that the reason why the terminal rejects the paging message is that the terminal triggers a voice service fallback procedure.

8. A method for processing a voice service, comprising:

9. The method of claim 8, wherein the method further comprises:

10. The method of claim 9, wherein the AMF device sending a paging message to the terminal comprises:

11. The method of claim 8, wherein the method further comprises:

ending the paging process of the terminal;

reducing paging frequency to the terminal;

12. The method of claim 11, wherein after the AMF device sends a paging message to the terminal, the method further comprises:

the AMF device ends the paging process for the terminal, including:

13. The method of claim 12, wherein the first message includes second voice service fallback indication information, and wherein the second voice service fallback indication information is used to indicate that the reason why the terminal rejects the paging message is that the terminal triggered a voice service fallback procedure.

14. The method of claim 13, wherein determining that the terminal in the idle state needs to initiate the called voice service comprises:

the AMF equipment receives a signaling transmission request message sent by session control gateway equipment of the first network, wherein the signaling transmission request message comprises voice service indication information;

15. The method of claim 14, wherein the method further comprises:

16. The method of claim 15, wherein the AMF device sending a signaling response message to the session control gateway device comprises:

17. The method of claim 14, wherein the method further comprises:

18. The method of claim 8, wherein the method further comprises:

19. The method of claim 18, wherein the method further comprises:

20. The method of claim 18, wherein the method further comprises:

21. The method of claim 18, wherein the method further comprises:

22. A method for processing a voice service, comprising:

The method comprises the steps that session control gateway equipment obtains first indication information, wherein the first indication information is used for indicating a terminal to carry out a voice service fallback flow;

suspending or ending the paging process for the terminal;

triggering the transmission of the cached downlink data corresponding to the terminal in the second network.

23. The method of claim 22, wherein the session control gateway device obtains the first indication information, comprising:

the session control gateway device receives a signaling transmission response message sent by an AMF device, wherein the signaling transmission response message comprises the first indication information;

the first indication information is determined by the AMF equipment according to second voice service fallback indication information included in a first message, and the first message is used for rejecting a paging message sent by the AMF equipment by the terminal.

24. The method of claim 23, wherein before the session control gateway device receives the signaling transfer response message sent by the AMF device, the method further comprises:

25. The method of claim 22, wherein the session control gateway apparatus obtaining the first indication information comprises:

the session control gateway device receives a session context request message sent by an AMF device, wherein the session context request message comprises the first indication information;

26. The method of claim 23, wherein the signaling response message includes latency information indicating time information required for the terminal to fall back from the first network to the second network.

27. The method of claim 26, wherein the method further comprises:

28. A processing apparatus for voice service, applied to an idle terminal, comprising:

29. The apparatus as recited in claim 28, further comprising:

30. The apparatus of claim 29, wherein the paging message is sent by the AMF device if the terminal is provided with the first capability.

31. A processing apparatus for voice service, applied to an AMF device of a first network, comprising:

32. The apparatus as recited in claim 31, further comprising:

33. A processing apparatus for a voice service, applied to a session control gateway device, comprising:

suspending or ending the paging process for the terminal;

34. The apparatus of claim 33, wherein the third obtaining module is configured to receive a signaling response message sent by an AMF device, the signaling response message including the first indication information;

35. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of processing a voice service according to any one of claims 1 to 7.

36. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of processing a voice service according to any one of claims 8 to 21, or performs the steps of the method of processing a voice service according to any one of claims 22 to 27.

37. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the method for processing a voice service according to any one of claims 1 to 7, or the steps of the method for processing a voice service according to any one of claims 8 to 21, or the steps of the method for processing a voice service according to any one of claims 22 to 27.