CN110691387A

CN110691387A - Voice service processing method and device, related equipment and storage medium

Info

Publication number: CN110691387A
Application number: CN201810739399.3A
Authority: CN
Inventors: 谢芳; 陈卓; 阮航
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2020-01-14
Anticipated expiration: 2038-07-06
Also published as: CN110691387B

Abstract

The invention discloses a method and a device for processing voice service, network equipment, a terminal and a storage medium. The method comprises the following steps: the first network equipment informs the terminal of first information; the first information represents a voice call scheme used when the terminal performs a voice service.

Description

Voice service processing method and device, related equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, a terminal, a network device, and a storage medium for processing a voice service.

Background

As the fourth generation mobile communication technology (4G) (i.e., Long Term Evolution (LTE)) enters the commercial scale phase, the fifth generation mobile communication technology (5G) oriented in 2020 and the future has become a global research and development hotspot. There are many different voice schemes for 5G, which are associated with different networking modes. Currently, 3GPP defines two schemes for 5G new air interface (NR, new radio) networking, which are independent networking (SA) and dependent-dependent Networking (NSA); correspondingly, for different networking modes, the third generation partnership project (3GPP) organization proposes different voice service usage modes.

Under the condition, the problem that whether the terminal voice scheme capability is matched with the network capability or not is involved when the voice service is carried out, when the terminal voice scheme capability is not matched with the network capability, call failure is caused, the call failure delay is long, and the user experience is influenced.

Disclosure of Invention

In order to solve the existing technical problem, embodiments of the present invention provide a method, an apparatus, a terminal, a network device, and a storage medium for processing a voice service.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a method for processing a voice service, which is applied to first network equipment and comprises the following steps:

informing the terminal of first information; the first information represents a voice call scheme used when the terminal performs a voice service.

In the above scheme, the method further comprises:

determining first information by using first capability information of the terminal and second capability information of second network equipment; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

In the above scheme, the method further comprises:

receiving the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

In the above scheme, the receiving the first capability information reported by the terminal includes one of the following modes:

receiving the reported first capability information in a startup registration process or a Tracking Area Update (TAU) process;

receiving the reported first capability information through second network equipment; the second network equipment obtains the first capability information through an air interface;

and the first network equipment or the second network equipment actively requests and then receives the reported first capability information.

In the foregoing scheme, the receiving the second capability information reported by the second network device includes one of the following manners:

receiving reported second capability information in the process of establishing and/or updating an interface between the second network equipment and the first network equipment;

and receiving the reported second capability information after the first network equipment actively requests.

In the foregoing solution, determining the first information by using the first capability information of the terminal and the second capability information of the second network device includes:

matching the first capability information with the second capability information to obtain a matching result;

and determining the first information by using the matching result.

In the foregoing solution, the determining the first information by using the matching result includes:

when the matching result represents that the first capability information and the second capability information are matched, selecting a voice scheme from a voice scheme set commonly supported by the terminal and the second network equipment;

determining the first information based on the selected speech scheme.

In the above scheme, the capability of the Voice scheme supported by the terminal is to simultaneously support a New Voice Over air (VoNR) scheme and an Evolved Packet System (EPS) Fallback (Fallback) scheme; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPSFallback scheme are simultaneously supported;

the selecting a voice scheme from a voice scheme set commonly supported by the terminal and the second network device includes:

and selecting a voice scheme according to the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal, or according to the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network device.

In the above scheme, the method further comprises:

receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

and receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network equipment.

In the foregoing solution, the notifying the terminal of the first information includes:

when the terminal is a calling party, carrying the first information in a Register Accept (Register Accept) signaling or other signaling and sending the first information to the terminal;

alternatively, the first and second electrodes may be,

when the terminal is called, the terminal is notified of first information after a Data Resource Bearer (DRB) carrying a voice service is established.

In the foregoing solution, when the first information is carried in Register Accept signaling or other signaling and sent to the terminal, the method further includes:

carrying the used voice call scheme directly in the Register Accept signaling or other signaling; or using bits in the Register Accept signaling or other signaling to indicate the voice call scheme in use.

In the above scheme, the capability of the voice scheme supported by the terminal is one of the following:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme, and preferentially selecting the VoNR scheme or the EPSFallback scheme.

In the foregoing solution, the capability of the voice scheme supported by the second network device is one of the following:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

In the above scheme, the method further comprises:

and when the matching result represents that the first capability information and the second capability information are not matched, informing that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network equipment.

In the foregoing solution, the notifying that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network device includes:

notifying the terminal and/or an IP Multimedia Subsystem (IMS) that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

In the foregoing solution, notifying the terminal that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network device includes:

and when the terminal is a calling party, carrying the information representing that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network equipment in registration rejection Register (REGISTER) Reject signaling or other signaling and sending the information to the terminal.

In the above scheme, a bit is used in Register Reject signaling or other signaling to indicate that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

In the above solution, the terminal is called, and only notifies the IMS that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network device.

In the foregoing solution, when notifying the first information, the method further includes:

notifying the terminal of second information; the second information characterizes a valid range in which the voice call scheme can be used.

The embodiment of the invention also provides a processing method of voice service, which is applied to a terminal and comprises the following steps:

receiving the first information of the notification; the first information represents a voice call scheme used when the terminal performs a voice service.

In the above scheme, the method further comprises:

reporting first capability information; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

In the foregoing solution, the reporting the first capability information includes one of the following manners:

reporting first capability information in a starting-up registration process or a TAU process;

reporting the first capability information through the second network equipment; the second network equipment interacts with the terminal through an air interface;

the first network equipment or the second network equipment reports the first capacity information after actively requesting.

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

In the above scheme, the voice scheme supported by the terminal is capable of simultaneously supporting a VoNR scheme and an epshellback scheme; when reporting the first capability information, the method further comprises:

reporting the selection priority of the VoNR scheme and the EPS Fallback scheme; the selection priority is used for a scheme for the first network device to select a voice call.

In the above scheme, the terminal is a calling party; the method further comprises the following steps:

and receiving a message that the voice scheme capability supported by the terminal and the voice scheme capability supported by the second network equipment are not matched, and prohibiting voice service or selecting a cell capable of supporting the self voice scheme capability to initiate an access process.

In the foregoing solution, when receiving the first notified information, the method further includes:

receiving the notified second information; the second information characterizes a valid range in which the voice call scheme can be used.

The embodiment of the invention also provides a method for processing the voice service, which is applied to the second network equipment, and the method comprises the following steps:

reporting second capability information; wherein the second capability information characterizes a capability of a voice scheme supported by the second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

In the foregoing scheme, the reporting the second capability information includes one of the following manners:

reporting second capability information in the process of establishing and/or updating an interface between the first network equipment and the second network equipment;

and reporting second capability information after the first network equipment actively requests.

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme, and preferentially selecting the VoNR scheme or the EPS Fallback scheme.

In the above solution, the voice scheme supported by the second network device is capable of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; when reporting the second capability information, the method further comprises:

An embodiment of the present invention further provides a device for processing a voice service, including:

a notification unit for notifying the terminal of the first information; the first information represents a voice call scheme used when the terminal performs a voice service.

In the above scheme, the apparatus further comprises:

a first processing unit, configured to determine first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

In the above scheme, the first processing unit is further configured to receive the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

In the foregoing solution, the first processing unit is specifically configured to:

and determining the first information by using the matching result.

In the foregoing solution, the first processing unit is configured to:

determining the first information based on the selected speech scheme.

In the above scheme, the voice scheme supported by the terminal is capable of simultaneously supporting a VoNR scheme and an epshellback scheme; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPSFallback scheme are simultaneously supported;

the first processing unit is specifically configured to:

In the foregoing solution, the first processing unit is further configured to: receiving the selection priority of the VoNR scheme and the EPSFallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

In the foregoing solution, the first notifying unit is further configured to:

In the foregoing solution, the notifying unit is further configured to:

The embodiment of the invention also provides a processing device of voice service, which comprises:

a receiving unit configured to receive the notified first information; the first information represents a voice call scheme used when the terminal performs a voice service.

In the above scheme, the apparatus further comprises:

a first reporting unit, configured to report the first capability information; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

In the above scheme, the voice scheme supported by the terminal is capable of simultaneously supporting a VoNR scheme and an epshellback scheme; the first reporting unit is further configured to:

when the first capability information is reported, reporting the selection priority of the VoNR scheme and the EPS Fallback scheme; the selection priority is used for a scheme for the first network device to select a voice call.

In the above scheme, the terminal is a calling party; the device further comprises: the second processing unit is further configured to receive a message that the voice scheme capability supported by the terminal and the voice scheme capability supported by the second network device are not matched, and prohibit a voice service or select a cell capable of supporting the self voice scheme capability to initiate an access procedure.

In the above solution, the receiving unit is further configured to receive second information of the notification when receiving the first information of the notification; the second information characterizes a valid range in which the voice call scheme can be used.

a second reporting unit, configured to report second capability information; wherein the second capability information characterizes a capability of a voice scheme supported by a second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

In the above solution, the voice scheme supported by the second network device is capable of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the second reporting unit is further configured to report the selection priority of the VoNR scheme and the epshellback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

An embodiment of the present invention further provides a first network device, including:

a first processor;

a first communication interface for notifying a terminal of first information under control of the first processor; the first information represents a voice call scheme used when the terminal performs a voice service.

In the foregoing solution, the first processor is configured to determine first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

In the above scheme, the first communication interface is further configured to receive the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

In the foregoing solution, the first processor is specifically configured to:

and determining the first information by using the matching result.

In the foregoing solution, the first processor is configured to:

determining the first information based on the selected speech scheme.

the first processor is specifically configured to:

In the foregoing solution, the first communication interface is further configured to: receiving the selection priority of the VoNR scheme and the EPSFallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

In the foregoing solution, the first communication interface is further configured to:

In the above scheme, the first communication interface is further configured to notify the terminal of second information; the second information characterizes a valid range in which the voice call scheme can be used.

An embodiment of the present invention further provides a terminal, including:

a second processor;

a second communication interface for receiving the notified first information under the control of the second processor; the first information represents a voice call scheme used when the terminal performs a voice service.

In the above scheme, the second communication interface is further configured to report the first capability information under the control of the second processor; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

In the above scheme, the voice scheme supported by the terminal is capable of simultaneously supporting a VoNR scheme and an epshellback scheme; the second communication interface is further configured to:

In the above scheme, the terminal is a calling party;

the second communication interface is further configured to receive a message that the notified voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device;

and the second processor is used for forbidding voice service or selecting a cell capable of supporting the self voice scheme capability to initiate an access process.

In the above solution, the second communication interface is further configured to receive the second information of the notification when receiving the first information of the notification; the second information characterizes a valid range in which the voice call scheme can be used.

An embodiment of the present invention further provides a second network device, including:

a third processor;

a third communication interface, configured to report second capability information under the control of the third processor; wherein the second capability information characterizes a capability of a voice scheme supported by the second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

In the above solution, the voice scheme supported by the second network device is capable of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the third communication interface is further configured to report the selection priority of the VoNR scheme and the epshellback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

An embodiment of the present invention further provides a first network device, including: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any of the above-mentioned methods at the first network device side when running the computer program.

An embodiment of the present invention further provides a terminal, which is characterized by including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any of the above-mentioned methods of the terminal side when running the computer program.

An embodiment of the present invention further provides a second network device, including: a third processor and a third memory for storing a computer program capable of running on the processor,

wherein the third processor is configured to execute the steps of any of the methods of the second network device side when running the computer program.

An embodiment of the present invention further provides a storage medium, where a computer program is stored, and when executed by a processor, the computer program implements the steps of any method on the first network device side, or implements the steps of any method on the terminal side, or implements the steps of any method on the second network device side.

According to the processing method, the processing device, the terminal, the network equipment and the storage medium of the voice service provided by the embodiment of the invention, the first network equipment informs the terminal of the first information; the first information represents a voice call scheme used when the terminal performs a voice service. The core network side informs the terminal of the voice calling scheme used during voice service, so that the terminal can determine to select the voice scheme, thereby avoiding call failure caused by mismatching of the voice scheme capabilities of the terminal and the network side, further greatly reducing time delay caused by call failure and improving user experience.

Drawings

Fig. 1 is a schematic flow chart of a processing method of a voice service at a first network device side according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a voice service establishment flow corresponding to an EPS Fallback scheme according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a processing method of a voice service at a second network device side according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a processing method of a voice service according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a processing apparatus for voice service according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another voice service processing apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a processing apparatus for voice service according to another embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first network device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second network device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a processing system of voice service according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

For the 5G non-independent networking mode, the control plane is anchored on the 4G network, and the VoLTE scheme used by the voice service is a natural choice; for the 5G independent networking mode, 3GPP proposes two schemes, a VoNR scheme and an EPS Fallback scheme. The VoNR scheme refers to that a 5G access network and a core network provide an IMS-based voice service, while the EPS Fallback scheme refers to that a terminal drops back 4G when initiating an IMS call on the 5G, and establishes a VoLTE voice service through the 4G access network and the core network, where the drop-back mode may be handover or the like.

In the 5G system, the terminal call establishment procedure mainly includes the following steps:

step 1: the terminal starts up, after a 5G cell is selected to reside, a start-up registration process (Register) is firstly carried out, then a Protocol data unit Session (PDU Session) establishment process is carried out, namely, a QoS flow with a first level (for example, the level is 5) is established to bear Session Initiation Protocol (SIP) signaling, and then an IMS registration process is initiated. And when the terminal finishes IMS registration, entering an idle state.

Step 2: the terminal initiatively initiates a call in an idle state, or after receiving a paging message as a called party, first performs a Service Request (Service Request) process, reestablishes a Quality of Service (QoS) flow with a first level (for example, level 5) for carrying SIP signaling, and then sends an SIP Invite (Invite) signaling to the IMS.

And step 3: after receiving the request, the IMS notifies the core network to prepare for bearer establishment, and then the core network requests the base station to establish a QoS stream of a second level (for example, level 1) to carry the voice service, and at this time, the VoNR scheme and the EPS Fallback scheme are distinguished: if the base station selects the EPS Fallback scheme, the base station refuses to establish the QoS flow of the voice service, executes the EPS Fallback process, namely, the terminal is switched or redirected to 4G, and then the terminal completes the VoLTE call establishment on the 4G; if the base station selects the VoNR scheme, the Qos flow of the voice service is established, and the establishment of the terminal is required by issuing a Radio Resource Control (RRC) connection reconfiguration message until the VoNR voice establishment process is completed.

In the case of having the VoNR scheme and the EPS Fallback scheme, the terminal voice scheme capability may not match with the voice scheme capability of the network side, for example, the terminal supports only the EPS Fallback voice scheme, and the network side supports only the VoNR voice scheme. For this scenario, a call failure is caused at this time, and the call failure delay is long.

The reason why there is a delay in this scenario is analyzed in detail below.

The call process in this scenario includes:

firstly, a terminal only supporting an EPS Fallback voice scheme actively initiates a call in an idle state, or after receiving a paging message as a called party, first performs a Service Request process, reestablishes a QoS flow of a first level (for example, a level of 5, 5QI ═ 5) to carry an SIP signaling, and then sends the SIP Invite signaling to the IMS.

Here, for the idle terminal, a Service Request procedure needs to be initiated first, and after a data bearer (i.e., DRB) used between the terminal and the base station is established to be capable of carrying the SIP signaling, the SIP Invite signaling can be sent.

Then, after receiving the request, the IMS notifies the core network to prepare for bearer establishment, and then the core network requests the base station to establish a QoS stream of a second level (for example, level 1) for carrying the voice service, at this time, since the base station only supports the VoNR voice scheme, the base station selects the VoNR voice scheme, the base station establishes a QoS stream of the voice service, and requests the terminal to establish by issuing an RRC connection reconfiguration message, and the terminal will refuse to establish because the terminal does not support the VoNR voice scheme, resulting in call failure.

As can be seen from the above process, the entire call failure process includes the complete Service Request process and the first part of the Invite process, and the corresponding delay includes the delay generated by the complete Service Request process and the part of the Invite process; the first part of the Invite procedure is from the time when the terminal sends the Invite message to the time when the base station fails to trigger the RRC connection reconfiguration procedure, and the call failure delay is expected to be several seconds, which may seriously affect the user experience.

Based on this, in various embodiments of the present invention, the core network device notifies the terminal of the voice call scheme used when performing the voice service.

Specifically, the first network device notifies the terminal of first information; the first information represents a voice call scheme used when the terminal performs a voice service. The core network side informs the terminal of the voice calling scheme used during voice service, so that the terminal can determine to select the voice scheme, thereby avoiding call failure caused by mismatching of the voice scheme capabilities of the terminal and the network side, further greatly reducing time delay caused by call failure and improving user experience.

An embodiment of the present invention provides a method for processing a voice service, which is applied to a first network device, and as shown in fig. 1, the method includes:

step 100: determining first information;

here, the first information represents a voice call scheme used when the terminal performs a voice service.

In practical application, the first network device is a core network element, such as an Access and Mobility Management Function (AMF), and the like.

Specifically, the first information is determined by using first capability information of the terminal and second capability information of a second network device.

Wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

Here, in an embodiment, before the network element of the core network, that is, the first network device receives the IMS notification and prepares to establish the voice bearer, the first information is determined.

Since the first information is determined using the first capability information and the second capability information, the first network device needs to obtain these information.

Based on this, in an embodiment, the method may further include:

and receiving the first capability information reported by the terminal.

The receiving of the first capability information reported by the terminal may include one of the following manners:

receiving the reported first capability information in the process of starting up and registering or in the process of TAU;

Here, in actual application, during a power-on registration process or during a TAU process, the terminal may add a terminal voice scheme Capability to the UE Capability (for example, UE 5GC Capability) to report the first Capability information.

In practical application, the second network device may be a base station, and when the reported first capability information is received by the second network device, the terminal may report the first capability information to the base station through an air interface, for example, through messages such as an RRC connection establishment request, an RRC connection establishment completion, and an RRC reconfiguration completion, and the base station may report the first capability information to the first network device again.

For the way that the first network device or the second network device actively requests to report the first capability information, in actual application, an access network element (e.g., a base station gNB, etc.) or a core network element (e.g., an AMF, etc.) may actively initiate a voice scheme capability query for the terminal, and the terminal reports to the access network element and then reports to the first network device through the access network.

In an embodiment, the capability of the voice scheme supported by the terminal may be one of the following:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

the VoNR scheme and the EPS Fallback scheme are simultaneously supported, and the VoNR scheme (the second time of the EPS Fallback scheme) or the EPS Fallback scheme (the second time of the VoNR scheme) is prioritized.

As shown in fig. 2, the voice service establishment procedure corresponding to the EPS Fallback scheme may include:

step 201: a terminal initiates an IMS voice session (a calling party or a called party), and triggers a voice QoS flow establishing process, namely MOor MT IMS voice session in 5GS, Qos flow for voice interest initialization;

step 202: the 5G core network establishes the QoS flow of the IMS voice by initiating PDU session modification, namely NW (NetWork) initiated PDU session modification to setup QoS flow for IMS voice;

step 203: the 5G base station executes an EPS Fallback process to the terminal, namely Trigger for Fallback, and optional Measurement Report Solicitation;

here, in this procedure, the 5G base station performs an EPS Fallback procedure according to the measurement report.

Step 204: the 5G base station refuses the PDU session modification of the core network, because the drop of IMS Voice is required, namely, the Reject PDU session modification indication IMS Voice Fallback in progress;

step 205: the terminal is switched or redirected to the EPS, namely the Redirection or Handover to EPS;

step 206 a: the terminal initiates a Tracking Area Update (TAU) process, namely a TAU Procedure, on the 4G network;

step 206 b: a terminal initiates an attachment process on a 4G network, and a Packet Data Network (PDN) connection establishment request is accompanied, wherein the request reason is handover (Attach), namely Attach with PDN connectivity request with request type 'handover';

step 207: the 4G network initiates PDN connection modification to establish a special voice bearer, namely NW initiated PDN connection modification to setup specified bearer for voice;

step 208: and continuing the IMS Voice session establishment process, namely IMS Voice session establishment.

In an embodiment, the method may further comprise:

and receiving the second capability information reported by the second network equipment.

Wherein, the receiving the second capability information reported by the second network device includes one of the following modes:

Here, for the manner in which the first network device actively requests to report the second capability information, when actually applying, the core network element (such as the AMF, etc.) may actively initiate a voice scheme capability query for the second network device, and the second network device reports the second capability information to the first network device.

In an embodiment, the capability of the voice scheme supported by the second network device may be one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

It should be noted that: in practical application, the reporting sequence of the voice scheme capabilities of the terminal and the second network device may be that the terminal reports first and the second network device reports second, or that the second network device reports first and the terminal reports second.

In an embodiment, the determining the first information by using the first capability information of the terminal and the second capability information of the second network device includes:

and determining the first information by using the matching result.

More specifically, when the matching result represents that the first capability information and the second capability information are matched, selecting a voice scheme from a voice scheme set commonly supported by the terminal and the second network equipment;

determining the first information based on the selected speech scheme.

Here, the matching of the first capability information and the second capability information means: the voice scheme capability supported by the terminal is partially or completely the same as the voice scheme capability supported by the second network equipment.

Accordingly, the voice scheme in the voice scheme set is a voice scheme supported by the terminal with the same voice scheme capability as that supported by the network side.

In an embodiment, the selecting a voice scheme from a set of voice schemes commonly supported by the terminal and the second network device includes:

That is, in this case, the terminal supports the voice scheme with the capability of simultaneously supporting the VoNR scheme and the EPS Fallback scheme; the voice scheme capability supported by the second network device also supports the VoNR scheme and the EPS Fallback scheme at the same time.

In practical application, the first network device may select the voice service by using the selection priority reported by the second network device according to needs, or select the voice service by using the selection priority reported by the terminal.

Here, the first network device needs the terminal and the second network device to report the selection priority of the vorr scheme and the epshellback scheme so as to determine the selected voice scheme.

Based on this, in an embodiment, the method may further include:

and receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal.

In practical application, similar to the way of reporting the first capability information, for example, when the first capability information reported by the terminal is received in the process of startup registration or in the process of TAU, the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal may also be received in the process of startup registration or in the process of TAU; for another example, when the reported first capability information is received by the second network device, the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal may also be received by the second network device.

That is, in actual use, the reception selection priority is received in the same manner as the reception capability information. That is, the capability information and the selection priority are reported simultaneously in a message or in a triggering mode; accordingly, the reported capability information and the selection priority are received simultaneously in one message or in a triggered manner.

In an embodiment, the method may further comprise:

Here, in actual application, similar to the way of reporting the second capability information, for example, when the reported second capability information is received in the process of establishing and/or updating the interface between the second network device and the first network device, the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network device may also be received in the process of establishing and/or updating the interface between the second network device and the first network device; for another example, when the reported second capability information is received after the active request of the first network device, the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network device may also be received after the active request of the first network device.

That is, in actual use, the reception selection priority is received in the same manner as the reception capability information. That is, the capability information and the selection priority are reported simultaneously in a message or in a triggering mode; correspondingly, the reported capability information and the selection priority of the second network device are received simultaneously in a message or in a triggering mode.

In practical application, when the matching result indicates that the first capability information and the second capability information are not matched, other network elements, such as the second network device, the IMS, the terminal, and the like, need to be notified in time.

Based on this, in an embodiment, when the matching result indicates that the first capability information and the second capability information are not matched, the terminal is notified that the supported voice scheme capability is not matched with the supported voice scheme capability of the second network device.

Specifically, the terminal and/or the IMS are notified that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

And when the terminal is a calling party, carrying information representing that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network equipment in Register project signaling or other signaling and sending the information to the terminal.

Specifically, bits may be utilized in Register Reject signaling or other signaling to indicate that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device, for example, the voice scheme capability reported by the terminal is not supported by 1-bit indication information.

Here, the other signaling may be TAU reject signaling.

When the terminal is a terminal with priority for Voice service (i.e., a Voice-centric User Equipment (UE)), after receiving the notification, the terminal needs to leave the current network to enable the network supporting the Voice scheme of the terminal.

If the current terminal is called, no matter the terminal is in a connected state, an idle state or an inactive state, the first network device may only notify the IMS that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network device, so that the base station does not need to page the terminal any more, thereby saving subsequent signaling overhead.

In practical application, the first network device may further notify a second network device that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

Step 101: informing the terminal of first information;

specifically, when the terminal is a calling party, the first information is carried in Register Accept signaling or other signaling and is sent to the terminal;

and when the terminal is called, notifying the terminal of the first information after the DRB for bearing the voice service is established.

Here, the used voice call scheme may be directly carried in the Register Accept signaling or other signaling, such as the VoNR scheme, or the EPS Fallback scheme, or both.

It is also possible to use bits in the Register Accept signaling or other signaling to indicate the used voice call scheme, such as the voice scheme supporting the terminal to report through the 1-bit indication information.

Wherein, in actual application, the other signaling may be TAU accept (accept) signaling or the like.

In an embodiment, when notifying the first information, the method may further include:

notifying the terminal of second information; the second information characterizes the valid range in which the voice call scheme can be used, i.e. the capability of the first network device to be implicitly informed of the valid range of the terminal is such that it can be used later when the terminal performs voice services within this range.

Here, in practical applications, the valid range may be represented by a Tracking Area (TA), such as 1 TA, or 1 TA list (list).

Correspondingly, the embodiment of the invention also provides a processing method of the voice service, which is applied to the terminal and comprises the following steps:

receiving first information notified by a first network device; the first information represents a voice call scheme used when the terminal performs a voice service.

Here, when the voice service is subsequently initiated after the first information is received, the voice service is performed by using the voice call scheme represented by the first information.

In an embodiment, the method further comprises:

In practical application, the terminal may report the capability information by means of some messages or existing flows, so as to reduce signaling overhead.

Based on this, in an embodiment, the reporting the first capability information may include one of the following manners:

Here, when the terminal supports the voice scheme with the capability of simultaneously supporting the VoNR scheme and the EPS Fallback scheme, the voice service preference of the terminal may also be set, that is, the selection priority may be set, for example, the VoNR scheme may be set to be prior to the EPS Fallback scheme, or the EPS Fallback scheme may be set to be prior to the VoNR scheme.

At this time, the terminal side voice service preference setting may be reported.

Based on this, in an embodiment, the capability of the voice scheme supported by the terminal is to support the VoNR scheme and the EPS Fallback scheme simultaneously; when reporting the first capability information, the method may further include:

In one embodiment, the terminal is a caller; the method may further comprise:

That is, the terminal does not initiate voice service or leave the current network to another network supporting its own voice service.

In an embodiment, when receiving the first information of the notification, the method may further include:

Correspondingly, an embodiment of the present invention further provides a method for processing a voice service, which is applied to a second network device, and as shown in fig. 3, the method includes:

step 300: determining second capability information;

step 301: and reporting the second capability information to the first network equipment.

Wherein the second capability information characterizes a capability of a voice scheme supported by the second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

Here, in practical applications, the second network device may be an access network element, such as a base station (evolved node b (enb) or 5G node b (gnb)).

In practical application, the second network device may report the capability information by using some messages or existing procedures, so as to reduce signaling overhead.

Based on this, in an embodiment, the reporting the second capability information includes one of the following manners:

Here, when the capability of the voice scheme supported by the second network device is to support both the VoNR scheme and the epshellback scheme, the voice service preference of the terminal may also be set, that is, the selection priority may be set, for example, the VoNR scheme may be set first to the EPS Fallback scheme, or the EPS Fallback scheme may be set first to the VoNR scheme.

At this time, the voice service preference setting of the second network device side may be reported.

Based on this, in an embodiment, the capability of the voice scheme supported by the second network device is to support the VoNR scheme and the EPS Fallback scheme simultaneously; when reporting the second capability information, the method may further include:

An embodiment of the present invention further provides a method for processing a voice service, and as shown in fig. 4, the method includes:

step 400: the terminal reports the first capacity information to the first network equipment, and the second network equipment reports the second capacity information to the first network equipment;

here, the first capability information characterizes a capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

Step 401: and the first network equipment determines first information according to the first capability information and the second capability information and informs the terminal.

In the method for processing a voice service provided by the embodiment of the invention, first network equipment informs a terminal of first information; the first information represents a voice call scheme used when the terminal performs a voice service. The core network side informs the terminal of the voice calling scheme used during voice service, so that the terminal can determine to select the voice scheme, thereby avoiding call failure caused by mismatching of the voice scheme capabilities of the terminal and the network side, further greatly reducing time delay caused by call failure and improving user experience.

In order to implement the method on the first network device side in the embodiment of the present invention, an embodiment of the present invention further provides a processing apparatus for a voice service, which is arranged on the first network device, and as shown in fig. 5, includes:

a notification unit 51 for notifying the terminal of the first information; the first information represents a voice call scheme used when the terminal performs a voice service.

As shown in fig. 5, the apparatus may further include: a first processing unit 52 for determining the first information;

specifically, the first processing unit 52 determines the first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

In an embodiment, the first processing unit 52 is further configured to receive the first capability information reported by the terminal.

In an embodiment, the first processing unit 52 is further configured to receive the second capability information reported by the second network device.

The first processing unit 52 is specifically configured to:

and determining the first information by using the matching result.

More specifically, when the matching result indicates that the first capability information and the second capability information match, the first processing unit 52 selects a voice scheme from a set of voice schemes supported by the terminal and the second network device;

based on the selected speech scheme, the first processing unit 52 determines the first information.

the first processing unit 52 selects the voice scheme according to the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal, or according to the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network device.

In an embodiment, the first processing unit 52 is further configured to: and receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal.

In an embodiment, the first processing unit 52 is further configured to: and receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the second network equipment.

Based on this, in an embodiment, the notifying unit 51 is further configured to:

Specifically, the notifying unit 51 notifies the terminal and/or the IMS that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

In an embodiment, the notifying unit 51 is further configured to:

In practical application, the notification unit 51 may be implemented by a communication interface in a processing device of a voice service; the first processing unit 52 may be implemented by a processor in a processing device for voice services in combination with a communication interface.

In order to implement the method at the terminal side of the present invention, an embodiment of the present invention further provides a processing apparatus for a voice service, which is disposed on a terminal, as shown in fig. 6, and includes:

a receiving unit 61 for receiving the notified first information; the first information represents a voice call scheme used when the terminal performs a voice service.

In one embodiment, as shown in fig. 6, the apparatus may further include:

a first reporting unit 62, configured to report the first capability information; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

In an embodiment, the terminal supports a voice scheme with the capability of simultaneously supporting a VoNR scheme and an epscallback scheme; the first reporting unit 62 is further configured to:

In one embodiment, the terminal is a calling party; the apparatus may further include: the second processing unit is further configured to receive a message that the voice scheme capability supported by the terminal and the voice scheme capability supported by the second network device are not matched, and prohibit a voice service or select a cell capable of supporting the self voice scheme capability to initiate an access procedure.

In an embodiment, the receiving unit 61 is further configured to receive the second information of the notification when receiving the first information of the notification; the second information characterizes a valid range in which the voice call scheme can be used.

In practical application, the receiving unit 61 and the first reporting unit 62 may be implemented by a communication interface in a processing device of a voice service; the second processing unit may be implemented by a processor in a processing device for voice services in combination with a communication interface.

The method at the second network device side of the present invention further provides a processing apparatus for a voice service, which is arranged on a network device, as shown in fig. 7, and includes:

a second reporting unit 71, configured to report the second capability information; wherein the second capability information characterizes a capability of a voice scheme supported by the second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

In an embodiment, the apparatus may further include: a determining unit 72, configured to determine the second capability information.

In an embodiment, the voice scheme supported by the second network device is capable of supporting both a VoNR scheme and an EPS Fallback scheme; the second reporting unit is further configured to report the selection priority of the VoNR scheme and the epshellback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

In practical application, the second reporting unit 71 may be implemented by a communication interface in a processing device of a voice service; the determination unit 72 may be implemented by a processor in a processing means of the voice service.

It should be noted that: in the processing apparatus for voice service provided in the foregoing embodiment, when performing processing of voice service, only the division of each program module is illustrated, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the processing described above. In addition, the processing apparatus of the voice service provided in the foregoing embodiment and the processing method embodiment of the voice service belong to the same concept, and details of a specific implementation process thereof are referred to in the method embodiment and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a first network device, as shown in fig. 8, where the first network device 80 includes:

a first communication interface 81 capable of information interaction with other devices;

the first processor 82 is connected to the first communication interface 81 to implement information interaction with other devices, and is configured to execute a method provided by one or more technical solutions of the first network device side when running a computer program. And the computer program is stored on the first memory 83.

Specifically, a first communication interface 81 for notifying the terminal of first information under the control of the first processor 82; the first information represents a voice call scheme used when the terminal performs a voice service.

In an embodiment, the first processor 82 is configured to determine the first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

In an embodiment, the first communication interface 81 is further configured to receive the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

In an embodiment, the first processor 82 is specifically configured to:

and determining the first information by using the matching result.

In one embodiment, the first processor 82 is configured to:

determining the first information based on the selected speech scheme.

In an embodiment, the terminal supports a voice scheme with the capability of simultaneously supporting a VoNR scheme and an epscallback scheme; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPSFallback scheme are simultaneously supported;

the first processor 82 is specifically configured to:

In an embodiment, the first communication interface 81 is further configured to: receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

In an embodiment, the first communication interface 81 is further configured to:

In an embodiment, the first communication interface is further configured to notify the terminal of second information; the second information characterizes a valid range in which the voice call scheme can be used.

It should be noted that: the specific processing procedures of the first processor 82 and the first communication interface 81 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components in the first network device 80 are coupled together by a bus system 84. It will be appreciated that the bus system 84 is used to enable communications among the components. The bus system 84 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 84 in fig. 8.

The first memory 83 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal 130. Examples of such data include: any computer program for operating on the first network device 80.

The method disclosed in the above embodiments of the present invention may be applied to the first processor 82, or implemented by the first processor 82. The first processor 82 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 122. The first Processor 82 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 82 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 83, and the first processor 82 reads the information in the first memory 83 to complete the steps of the foregoing method in conjunction with its hardware.

In an exemplary embodiment, the first network Device 80 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method on the terminal side in the embodiment of the present invention, an embodiment of the present invention provides a terminal, as shown in fig. 9, where the terminal 90 includes:

the second communication interface 91 can perform information interaction with the network equipment;

the second processor 92 is connected to the second communication interface 91 to implement information interaction with a network device, and is configured to execute a method provided by one or more technical solutions of the network device side when running a computer program. And the computer program is stored on the second memory 93.

Specifically, a second communication interface 91 for receiving the notified first information under the control of the second processor; the first information represents a voice call scheme used when the terminal performs a voice service.

In an embodiment, the second communication interface 91 is further configured to report the first capability information under the control of the second processor; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

In an embodiment, the terminal supports a voice scheme with the capability of simultaneously supporting a VoNR scheme and an epscallback scheme; the second communication interface 91 is further configured to:

In one embodiment, the terminal is a caller; the second communication interface 91 is further configured to receive a message that the notified voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device;

a second processor 92 for disabling voice service or selecting a cell capable of supporting the own voice scheme capability to initiate an access procedure.

In an embodiment, the second communication interface 91 is further configured to receive the second information of the notification when receiving the first information of the notification; the second information characterizes a valid range in which the voice call scheme can be used.

It should be noted that: the specific processing procedures of the second processor 92 and the second communication interface 91 are detailed in the method embodiment, and are not described herein again.

Of course, in practical applications, the terminal 90 may further include: a user interface 94. The various components in the terminal 90 are coupled together by a bus system 95. It will be appreciated that the bus system 95 is used to enable communications among the components. The bus system 95 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 95 in fig. 9.

The user interface 94 may include, among other things, a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad, a touch screen, or the like.

The second memory 93 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal 90. Examples of such data include: any computer program for operation on the terminal 90.

The method disclosed in the above embodiments of the present invention may be applied to the second processor 92, or implemented by the second processor 92. The second processor 92 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the second processor 92. The second processor 92 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 92 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 93, and the second processor 92 reads the information in the second memory 93 and, in conjunction with its hardware, performs the steps of the foregoing method.

In an exemplary embodiment, the terminal 90 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method on the network device side in the embodiment of the present invention, an embodiment of the present invention provides a network device, as shown in fig. 10, where the second network device 100 includes:

the third communication interface 101 can perform information interaction with other equipment;

and the third processor 102 is connected to the first communication interface 101 to implement information interaction with other devices, and is configured to execute the method provided by one or more technical solutions of the second network device side when running a computer program. And the computer program is stored on the third memory 103.

Specifically, the third communication interface 101 is configured to report second capability information under the control of the third processor 102; wherein the second capability information characterizes a capability of a voice scheme supported by the second network device; the second capability information is used for the scheme of the voice call of the first network equipment to carry out voice service.

In an embodiment, the voice scheme supported by the second network device is capable of supporting both a VoNR scheme and an EPS Fallback scheme; the third communication interface 101 is further configured to report the selection priority of the VoNR scheme and the EPS Fallback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

It should be noted that: the specific processing procedures of the third processor 102 and the third communication interface 101 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components in the second network device 100 are coupled together by the bus system 104. It is understood that the bus system 104 is used to enable communications among the components. The bus system 104 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 104 in fig. 10.

The third memory 103 in the embodiment of the present invention is used to store various types of data to support the operation of the second network device 100. Examples of such data include: any computer program for operating on the second network device 100.

The method disclosed in the above embodiments of the present invention may be applied to the third processor 102, or implemented by the third processor 102. The third processor 102 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the third processor 102. The third processor 102 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The third processor 102 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the third memory 103, and the third processor 102 reads the information in the third memory 103 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the second network device 100 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It is understood that the memories (the first memory 83, the second memory 93, and the third memory 103) of the embodiments of the present invention may be either volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an erasable Programmable Read-Only Memory (EPROM), an electrically erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a ferromagnetic access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data rate Synchronous Dynamic Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous link Dynamic Random Access Memory (SLDRAM, Synchronous Dynamic Random Access Memory (DRAM), Direct Memory (DRM, Random Access Memory). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a system for processing a voice service, and as shown in fig. 11, the system includes:

a first network device 111 for notifying the terminal 112 of the first information; the first information represents a voice calling scheme used when the terminal carries out voice service;

and the terminal 112 is configured to receive the first information notified by the first network device 111.

It should be noted that, in an embodiment, as shown in fig. 11, the system may further include:

the second network device 113 is configured to report second capability information to the first network device 111; wherein the second capability information characterizes a capability of a voice scheme supported by the second network device

The terminal 112 is further configured to report first capability information to the first network device 111; wherein the first capability information characterizes a capability of a voice scheme supported by the terminal 112.

The first network device 111 is further configured to determine the first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

It should be noted that: the specific processing procedures of the first network device 111, the terminal 112 and the second network device 113 are described in detail above, and are not described herein again.

In an exemplary embodiment, the present invention further provides a storage medium, specifically a computer storage medium, which includes, for example, a first memory 83 storing a computer program, where the computer program is executable by the first processor 82 of the first network device 80 to perform the steps of the first network device side method. For example, the second memory 93 may be adapted to store a computer program which is executable by the second processor 92 of the terminal 90 to perform the steps of the terminal side method as described above. For example, the third memory 103 stores a computer program, which can be executed by the third processor 102 of the second network device 100 to perform the steps of the terminal-side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: the technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for processing voice service is applied to a first network device, and the method comprises:

2. The method of claim 1, further comprising:

3. The method of claim 2, further comprising:

4. The method of claim 3, wherein the receiving the first capability information reported by the terminal comprises one of:

receiving the reported first capability information in a starting-up registration process or a tracking area update TAU process;

5. The method of claim 3, wherein the receiving the second capability information reported by the second network device comprises one of:

6. The method of claim 2, wherein determining the first information using first capability information of the terminal and second capability information of a second network device comprises:

and determining the first information by using the matching result.

7. The method of claim 6, wherein determining the first information using the matching result comprises:

determining the first information based on the selected speech scheme.

8. The method according to claim 7, wherein the capability of the voice scheme supported by the terminal is to support a new voice over air (VoNR) scheme and an evolved packet system Fallback (EPS Fallback) scheme at the same time; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPS Fallback scheme are simultaneously supported;

9. The method of claim 8, further comprising:

and/or the presence of a gas in the gas,

10. The method of claim 7, wherein notifying the terminal of the first information comprises:

when the terminal is a calling party, the first information is carried in a Register Accept signal or other signals and is sent to the terminal;

alternatively, the first and second electrodes may be,

and when the terminal is called, notifying the terminal of the first information after the data bearing DRB bearing the voice service is established.

11. The method according to claim 10, wherein when the first information is carried in register accept signaling or other signaling and sent to the terminal, the method further comprises:

12. The method of claim 2, wherein the capability of the voice scheme supported by the terminal is one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

13. The method of claim 2, wherein the capability of the voice scheme supported by the second network device is one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

14. The method of claim 7, further comprising:

15. The method of claim 14, wherein the notifying that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device comprises:

and informing the terminal and/or the IP multimedia subsystem that the voice scheme capability supported by the terminal is not matched with the voice scheme capability supported by the second network equipment.

16. The method of claim 15, wherein notifying the terminal that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device comprises:

17. The method according to claim 16, characterized in that bits are utilized in Register project signalling or other signalling to indicate that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

18. The method of claim 15, wherein the terminal is called, and wherein the IMS is only informed that the voice scheme capability supported by the terminal does not match the voice scheme capability supported by the second network device.

19. The method of claim 1, wherein when notifying the first information, the method further comprises:

20. A method for processing voice service is applied to a terminal, and the method comprises the following steps:

21. The method of claim 20, further comprising:

22. The method of claim 21, wherein reporting the first capability information comprises one of:

23. The method of claim 21, wherein the capability of the voice scheme supported by the terminal is one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

24. The method according to claim 21, wherein the terminal supports a voice scheme with a capability of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; when reporting the first capability information, the method further comprises:

25. The method of claim 20, wherein the terminal is a caller; the method further comprises the following steps:

26. The method of claim 20, wherein receiving the first information of the notification, the method further comprises:

27. A method for processing voice service is applied to a second network device, and the method comprises:

28. The method of claim 27, wherein reporting the second capability information comprises one of:

29. The method of claim 27, wherein the capability of the voice scheme supported by the second network device is one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

simultaneously supporting a VoNR scheme and an EPS Fallback scheme;

30. The method of claim 27, wherein the voice scheme supported by the second network device is capable of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; when reporting the second capability information, the method further comprises:

31. An apparatus for processing voice traffic, comprising:

32. The apparatus of claim 31, further comprising:

33. The apparatus of claim 32, wherein the first processing unit is further configured to receive the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

34. The apparatus according to claim 32, wherein the first processing unit is specifically configured to:

and determining the first information by using the matching result.

35. The apparatus as claimed in claim 34, wherein said first processing unit is configured to:

determining the first information based on the selected speech scheme.

36. The apparatus of claim 35, wherein the terminal supports a voice scheme with a capability of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPS Fallback scheme are simultaneously supported;

the first processing unit is specifically configured to:

37. The apparatus of claim 36, wherein the first processing unit is further configured to: receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

38. The apparatus of claim 35, wherein the first notification unit is further configured to:

39. The apparatus of claim 31, wherein the notification unit is further configured to:

40. An apparatus for processing voice traffic, comprising:

41. The apparatus of claim 40, further comprising:

42. The apparatus of claim 40, wherein the terminal supports a voice scheme with a capability of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the first reporting unit is further configured to:

43. The apparatus of claim 40, wherein the terminal is a caller; the device further comprises: the second processing unit is further configured to receive a message that the voice scheme capability supported by the terminal and the voice scheme capability supported by the second network device are not matched, and prohibit a voice service or select a cell capable of supporting the self voice scheme capability to initiate an access procedure.

44. The apparatus of claim 40, wherein the receiving unit is further configured to receive the second information of the notification when receiving the first information of the notification; the second information characterizes a valid range in which the voice call scheme can be used.

45. An apparatus for processing voice traffic, comprising:

46. The apparatus of claim 45, wherein the voice scheme supported by the second network device is capable of supporting both a VoNR scheme and an EPS Fallback scheme; the second reporting unit is further configured to report the selection priorities of the VoNR scheme and the EPS Fallback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

47. A first network device, comprising:

a first processor;

48. The network device of claim 47, wherein the first processor is configured to determine the first information by using first capability information of the terminal and second capability information of a second network device; the first capability information represents the capability of a voice scheme supported by the terminal; the second capability information characterizes a capability of a voice scheme supported by the second network device.

49. The network device of claim 48, wherein the first communication interface is further configured to receive the first capability information reported by the terminal; and/or receiving the second capability information reported by the second network device.

50. The network device of claim 48, wherein the first processor is specifically configured to:

and determining the first information by using the matching result.

51. The network device of claim 50, wherein the first processor is configured to:

determining the first information based on the selected speech scheme.

52. The network device of claim 51, wherein the terminal supports a voice scheme with a capability of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the voice scheme capability supported by the second network equipment is that a VoNR scheme and an EPS Fallback scheme are simultaneously supported;

the first processor is specifically configured to:

53. The network device of claim 52, wherein the first communication interface is further configured to: receiving the selection priority of the VoNR scheme and the EPS Fallback scheme reported by the terminal;

and/or the presence of a gas in the gas,

54. The network device of claim 51, wherein the first communication interface is further configured to:

55. The network device of claim 47, wherein the first communication interface is further configured to notify the terminal of a second message; the second information characterizes a valid range in which the voice call scheme can be used.

56. A terminal, comprising:

a second processor;

57. The terminal of claim 56, wherein the second communication interface is further configured to report the first capability information under the control of the second processor; wherein the first capability information characterizes the capability of the voice scheme supported by the terminal; the capability information is used for the first network device to select a scheme of the voice call for voice service.

58. The terminal of claim 56, wherein the terminal supports a voice scheme having a capability of simultaneously supporting a VoNR scheme and an EPS Fallback scheme; the second communication interface is further configured to:

59. The terminal of claim 56, wherein the terminal is a caller;

60. The terminal of claim 56, wherein the second communication interface is further configured to receive the second information when receiving the first information for notification; the second information characterizes a valid range in which the voice call scheme can be used.

61. A second network device, comprising:

a third processor;

62. The network device of claim 61, wherein the voice scheme supported by the second network device is capable of supporting both a VoNR scheme and an EPS Fallback scheme; the third communication interface is further configured to report the selection priority of the VoNR scheme and the EPS Fallback scheme when reporting the second capability information; the selection priority is used for a scheme for the first network device to select a voice call.

63. A first network device, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 19 when running the computer program.

64. A terminal, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 20 to 26 when running the computer program.

65. A second network device, comprising: a third processor and a third memory for storing a computer program capable of running on the processor,

wherein the third processor is adapted to perform the steps of the method of any of claims 27 to 30 when running the computer program.

66. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 19, or for performing the steps of the method of any one of claims 20 to 26, or for performing the steps of the method of any one of claims 27 to 30, when the computer program is executed by a processor.