CN110691386A

CN110691386A - Voice service processing method and device, related equipment and storage medium

Info

Publication number: CN110691386A
Application number: CN201810738546.5A
Authority: CN
Inventors: 阮航; 陈卓; 马帅
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: CN110691386B

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 network equipment sends down capability indication information; wherein the capability indication information characterizes a capability of a voice scheme supported by the network side; the capability indication information is used for the terminal to select the scheme of the voice call for 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 network device, a terminal, 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 network device, a terminal, 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 voice service, which is applied to network equipment and comprises the following steps:

issuing capability indication information; wherein the content of the first and second substances,

the capability indication information characterizes the capability of the voice scheme supported by the network side; the capability indication information is used for the terminal to select the scheme of the voice call for voice service.

In the foregoing solution, the sending the capability indication information includes one of the following manners:

sending capability indication information through a cell system broadcast message;

register acceptance information or other non-access stratum (NAS) signaling sending capacity indication information sent by a core network.

In the above solution, the capability of the voice solution supported by the network side is one of the following:

only supporting a New Voice Over New Radio (VoNR) scheme;

support only the Evolved Packet System (EPS) Fallback (Fallback) scheme;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

In the above scheme, the voice scheme supported by the network side has the capability of simultaneously supporting the VoNR scheme and the epscallback scheme; when the capability indication information is issued, the method further comprises the following steps:

issuing the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side; the selection priority is used for the terminal to select a scheme of the voice call.

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 issued capability indication information; the capability indication information characterizes the capability of the voice scheme supported by the network side;

and selecting a voice calling scheme to carry out voice service by utilizing the capability indication information and the capability of the voice scheme of the user.

In the foregoing solution, the receiving the delivered capability indication information includes one of the following manners:

receiving the issued capability indication information through a cell system broadcast message;

and issuing a registration acceptance message or receiving issued capability indication information by other NAS signaling through a core network.

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

In the above solution, the selecting a voice call scheme to perform a voice service by using the capability indication information and the capability of the voice scheme of the mobile terminal includes:

matching the capability corresponding to the capability indication information with the determined self-supported voice scheme capability to obtain a matching result;

and selecting a voice calling scheme to carry out voice service by using the matching result.

In the above scheme, the selecting a voice call scheme for voice service using the matching result includes:

and when the matching result represents that the capability corresponding to the capability indication information is matched with the determined self voice scheme capability, selecting one voice scheme from a voice scheme set commonly supported by the network side and the terminal for voice service.

In the above scheme, the method further comprises:

the selected voice scheme is indicated in a Radio Resource Control (RRC) connection establishment cause.

In the foregoing solution, the selecting a voice scheme from a voice scheme set commonly supported by the network side and the terminal for performing a voice service includes:

and selecting voice service to carry out voice service according to the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side or the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side.

In the above scheme, the voice scheme supported by the network side has the capability of simultaneously supporting the VoNR scheme and the epscallback scheme; when receiving the capability indication information issued by the network device, the method further includes:

and receiving the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side.

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined self voice scheme capability and the priority of the self voice service is higher than that of the data service, selecting a different system cell to initiate an access process;

alternatively, the first and second electrodes may be,

and when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined self voice scheme capability and the priority of the self data service is higher than that of the voice service, the voice service is forbidden.

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

the sending unit is used for sending the capability indication information; wherein the content of the first and second substances,

In the above scheme, the voice scheme supported by the network side has the capability of simultaneously supporting the VoNR scheme and the epscallback scheme;

the sending unit is further configured to send the selection priority of the VoNR scheme and the epshellback scheme set on the network side when the capability indication information is sent; the selection priority is used for the terminal to select a scheme of the voice call.

a receiving unit, configured to receive the issued capability indication information; the capability indication information characterizes the capability of the voice scheme supported by the network side;

and the processing unit is used for selecting a voice calling scheme to carry out voice service by utilizing the capability indication information and the capability of the voice scheme of the terminal.

In the foregoing scheme, the processing unit is specifically configured to:

matching the capability corresponding to the capability indication information with the determined voice scheme capability supported by the terminal to obtain a matching result;

In the foregoing scheme, the processing unit is specifically configured to:

and when the matching result represents that the capability corresponding to the capability indication information is matched with the determined voice scheme capability of the terminal, selecting a voice scheme from a voice scheme set commonly supported by the network side and the terminal to carry out voice service.

In the foregoing scheme, the processing unit is specifically configured to:

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal, and the priority of the voice service of the terminal is higher than that of the data service, selecting a different system cell to initiate an access process;

alternatively, the first and second electrodes may be,

and when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal, and the priority of the data service of the terminal is higher than that of the voice service, the voice service is forbidden.

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

a first processor;

the first communication interface is used for sending capability indication information under the control of the first processor; wherein the content of the first and second substances,

the first communication interface is further configured to issue a selection priority of a VoNR scheme and an EPS Fallback scheme set on a network side when the capability indication information is issued under the control of the first processor; the selection priority is used for the terminal to select a scheme of the voice call.

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

the second communication interface is used for receiving the issued capability indication information; the capability indication information characterizes the capability of the voice scheme supported by the network side;

and the second processor is used for selecting a voice calling scheme to carry out voice service by utilizing the capability indication information and the capability of the voice scheme of the terminal.

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

alternatively, the first and second electrodes may be,

An embodiment of the present invention further provides a 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 one of the methods of the network device side when running the computer program.

An embodiment of the present invention further provides a terminal, 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.

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

In the method, the device, the network device, the terminal and the storage medium for processing the voice service provided by the embodiment of the invention, the network device issues the capability indication information, and the capability indication information represents the capability of the voice scheme supported by the network side; after the terminal receives the capability indication information, the terminal selects a voice calling scheme to carry out voice service by using the capability indication information and the capability of the voice scheme of the terminal, and the terminal acquires the capability of the voice scheme supported by the network side, so that the voice scheme can be quickly selected, thereby avoiding call failure caused by the mismatching of the capabilities of the voice schemes of the terminal and the network side, further greatly reducing the time delay caused by the call failure and improving the user experience.

Drawings

Fig. 1 is a schematic flow chart of a processing method for a voice service at a 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 schematic flow chart of a processing method of a terminal-side voice service 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 diagram of a structure of a broadcast message of a 5G cell system carrying capability indication information according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a broadcast message structure of a 5G cell system carrying capability indication information according to a second embodiment of the present invention;

fig. 7 is a schematic diagram of an RRC connection establishment cause structure of a voice scheme selected by a five-portable terminal according to an embodiment of the present invention;

fig. 8 is a schematic process diagram of a scheme for selecting a voice call by a six-terminal according to an embodiment of the present invention;

fig. 9 is a process diagram of a scheme in which a seventh terminal selects a voice call according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a processing apparatus for voice service according to an embodiment of the present invention;

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

FIG. 12 is a diagram illustrating a network device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 14 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 (such as a level of 5) is established to bear Session Initiation Protocol (SIP) signaling, and then an IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) 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 terminal is required to be established by transmitting the 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 (DRB, Data RB) used between the terminal and the base station is established to be able to carry 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 network side issues the capability indication information of the network side voice scheme, and the terminal performs the scheme selection of the voice call according to the indication information and the self capability.

Specifically, the network device issues capability indication information to the terminal, wherein the capability indication information represents the capability of the voice scheme supported by the network side; after the terminal receives the capability indication information, the terminal selects a voice calling scheme to carry out voice service by using the capability indication information and the capability of the voice scheme of the terminal, and the terminal acquires the capability of the voice scheme supported by the network side, so that the voice scheme can be quickly selected, thereby avoiding call failure caused by the mismatching of the capabilities of the voice schemes of the terminal and the network side, further greatly reducing the time delay caused by the call failure and improving the user experience.

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

step 100: determining the self capacity;

here, in practical applications, the network device may be a base station, such as an evolved node b (enb), a 5G base station (gNB), or the like.

The determined capabilities are capabilities of a voice scheme supported by the network device.

Step 101: and sending the capability indication information to the terminal.

Wherein the capability indication information characterizes a capability of a voice scheme supported by the network side; the capability indication information is used for the terminal to select a scheme of the voice call to carry out voice service.

In practical application, the network device may issue the capability indication information by means of a system broadcast message or signaling, so as to reduce signaling overhead.

Based on this, in an embodiment, the specific implementation of step 101 may include one of the following:

sending capability indication information to the terminal through a cell system broadcast message;

and sending the capability indication information to the terminal through a registration acceptance message or other NAS signaling sent by the core network.

In an actual application, the other NAS signaling may be an attach accept message or a tracking area update accept message.

In an embodiment, the capability of the network-side supported voice scheme may be one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

As shown in fig. 2, the voice service establishment process 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 TAUPROCEDURE, 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.

When the capability of the voice scheme supported by the network side is to support both the VoNR scheme and the EPS Fallback scheme, the voice service preference of the network side 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 network side voice service preference setting may be indicated.

Based on this, in an embodiment, when the capability indication information is issued to the terminal, the method may further include:

issuing the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side to the terminal; the selection priority is used for the terminal to select a scheme of the voice call.

Here, in practical application, similar to the way of issuing the capability indication information, for example, when the capability indication information is issued to the terminal through a cell system broadcast message, the selection priority of the VoNR scheme and the EPS Fallback scheme may also be issued to the terminal through the cell system broadcast message; for another example, when the registration acceptance message or other NAS signaling sent by the core network sends the capability indication information to the terminal, the selection priority of the VoNR scheme and the EPS Fallback scheme may be sent to the terminal through the registration acceptance message or other NAS signaling sent by the core network.

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

step 301: receiving capability indication information issued by network equipment;

here, the capability indication information characterizes a capability of a voice scheme supported by the network side.

Step 302: and selecting a voice calling scheme to carry out voice service by utilizing the capability indication information and the capability of the voice scheme of the user.

When the network equipment sends the capability indication information to the terminal through the cell system broadcast message, the terminal receives the capability indication information sent by the network equipment through the cell system broadcast message;

when the network equipment issues the capability indication information to the terminal through the registration acceptance message or other NAS signaling issued by the core network, the terminal receives the capability indication information issued by the network equipment through the registration acceptance message or other NAS signaling issued by the core network.

In an embodiment, the specific implementation of step 302 may include:

More specifically, when the matching result represents that the capability corresponding to the capability indication information matches the determined self voice scheme capability, selecting a voice scheme from a voice scheme set commonly supported by the network side and the terminal for voice service;

Wherein, the matching of the capability corresponding to the capability indication information and the determined own voice scheme capability means: the voice scheme capability supported by the network side is partially or completely the same as the voice scheme capability supported by the terminal.

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

In an embodiment, after the terminal selects the voice scheme, the selected voice scheme may be indicated in the RRC connection establishment cause, so that the network device can timely know the voice scheme selected by the terminal.

In an embodiment, the selecting a voice scheme from a voice scheme set commonly supported by the network side and the terminal for performing a voice service includes:

Here, in practical application, the voice service may be selected by using the selection priority set by the user or by using the selection priority set by the network side according to needs.

When the voice service is selected by adopting the selection priority set by the network side, the network device can issue the set selection priority to the terminal.

Based on this, in an embodiment, the capability of the voice scheme supported by the network side is to support both the VoNR scheme and the EPS Fallback scheme; when receiving the capability indication information issued by the network device, the method may further include:

When the terminal receives the capability indication information issued by the network device through the cell system broadcast message, the terminal can also receive the selection priority of the VoNR scheme and the EPSFallback scheme set by the network side through the cell system broadcast message.

When the terminal receives the capability indication information sent by the network equipment through the core network sending registration acceptance information or other NAS signaling, the terminal can also receive the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side through the core network sending registration acceptance information or other NAS signaling.

In practical application, when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined self voice scheme capability and the priority of the self voice service is higher than that of the data service, the terminal disables the capability of the system, needs to leave the cell of the system and selects a cell of a different system to initiate access.

When the matching result represents that the capability corresponding to the capability indication information is not matched with the determined self voice scheme capability and the priority of the self data service is higher than that of the voice service, the terminal can continuously stay in the cell of the system, only the data service is supported at the moment, but the voice service is not supported, namely the voice service is forbidden.

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 401: the network equipment transmits capability indication information to the terminal;

Step 402: the terminal receives the capability indication information issued by the network equipment;

step 403: and the terminal selects a voice calling scheme to carry out voice service by utilizing the capability indication information and the capability of the voice scheme of the terminal.

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

In the method for processing voice service provided by the embodiment of the invention, the network equipment sends the capability indication information to the terminal, and the capability indication information represents the capability of the voice scheme supported by the network side; after the terminal receives the capability indication information, the terminal selects a voice calling scheme to carry out voice service by using the capability indication information and the capability of the voice scheme of the terminal, and the terminal acquires the capability of the voice scheme supported by the network side, so that the voice scheme can be quickly selected, thereby avoiding call failure caused by the mismatching of the capabilities of the voice schemes of the terminal and the network side, further greatly reducing the time delay caused by the call failure and improving the user experience.

In addition, the ability indication information is sent to the terminal by the cell system broadcast message; or the registration acceptance message or other NAS signaling sent by the core network sends the capability indication information to the terminal, and the existing message or signaling is adopted to send the capability indication information to the terminal, so that the signaling overhead can be reduced.

The present invention will be described in further detail with reference to the following application examples.

Application embodiment 1

In this embodiment, the network device issues the capability indication information through a cell broadcast message.

As shown in fig. 5, the network device issues capability indication information in a broadcast message of the 5G cell system, indicating supported voice schemes — supporting only the VoNR scheme (i.e., VoNR only), supporting only the EPS Fallback scheme (i.e., EPS Fallback), or supporting both the VoNR and EPS Fallback schemes (i.e., VoNR and EPS Fallback).

It should be noted that: in fig. 5, all supported voice schemes are shown in the term of speech, but in this term, only set to VoNR only, or only set to EPS Fallback only, or only set to VoNR and EPS Fallback when actually applied.

Application example two

As shown in fig. 6, the network device issues capability indication information in a broadcast message of the 5G cell system, indicating supported voice schemes — supporting only the VoNR scheme (i.e., VoNR only), or supporting only the EPS Fallback scheme (i.e., EPS Fallback), or supporting only the VoNR-first EPS Fallback times (i.e., VoNR predicted and EPS Fallback), or supporting only the EPS Fallback times (i.e., EPS Fallback predicted and VoNR).

The network device supports two schemes (namely, VoNR and EPS Fallback) of VoNR and EPS Fallback at the same time, and sets a corresponding selection priority for each voice scheme.

It should be noted that: in fig. 6, all supported speech schemes are shown in the term of estimated, but in this term, it is set to VoNR only, EPS Fallback only, VoNR predicted and EPS Fallback second, or VoNR and epsfarlback only, when actually applied.

Application example three

In this embodiment, the network device sends the capability indication information through the registration acceptance message sent by the core network.

The network device issues a capability indication in a Register Accept (i.e. Register Accept) message of the core network, indicating supported voice schemes-supporting only the VoNR scheme (i.e. VoNR only), supporting only the EPS Fallback scheme (i.e. epsilonback only), or supporting both the VoNR and EPS Fallback schemes (i.e. VoNR and EPS Fallback).

Specifically, an indication as shown in table 1 is added in the 5GS network feature support field of the Register Accept signaling. Wherein, indicated by 2 bits (bit), 00 denotes VoNR only; 01 denotes EPS Fallbackonly, 10 denotes VoNR and EPS Fallback.

TABLE 1

Application example four

The network device issues a capability indication in a Register Accept (i.e. Register Accept) message of the core network, indicating supported voice schemes-supporting only the VoNR scheme (i.e. VoNR only), or supporting only the EPS Fallback scheme (i.e. epssmallback only), or the VoNR first EPS Fallback times (i.e. VoNR predicted and EPS Fallback), or the EPS Fallback times first (i.e. EPS Fallback and vonrfallback).

Specifically, an indication as shown in table 2 is added in the 5GS network feature support field of the Register Accept signaling. Wherein, indicated by 2 bits (bit), 00 denotes VoNR only; 01 represents EPS Fallbackonly; 10 represents the VoNR predicted and EPS Fallback secondary; 11 represents EPS FallBackpressed and VoNR secondary.

TABLE 2

Application example five

In this embodiment, after selecting the voice call scheme, the terminal indicates the voice scheme selected by the terminal through the RRC connection establishment cause message by using the capability indication information sent by the network device and the capability of the voice scheme of the terminal.

As shown in fig. 7, the terminal indicates the selected voice scheme in the RRC connection setup reason. Specifically, the selected speech scheme is indicated in the speech item corresponding to the EstablishmentCause.

It should be noted that: in fig. 7, all indications are shown in the entries, but in actual application, only mo-epsFallback, only mt-epsFallback, only mo-VoNR, or only mt-VoNR will be set in the entries. Where mo represents a calling party, i.e. the terminal initiates a call actively, mt represents a called party, i.e. the terminal acts as a called party.

Application example six

In this embodiment, a process in which the terminal selects a voice scheme when the voice scheme supported by the terminal itself does not match the voice scheme capability supported by the network is described.

In this embodiment, it is assumed that the terminal is prioritized for voice service and supports only the EPS Fallback voice scheme, and the network device supports only the VoNR voice scheme.

The terminal may know that the voice service is preferred by its own setting, for example, the terminal is a mobile phone or the like, and the voice service is already set when the terminal leaves a factory, and then, for example, the terminal is a pad or a notebook or the like, the terminal may be set as the data service.

As shown in fig. 8, the procedure of the terminal selecting the scheme of the voice call includes:

step 801: the terminal matches the self voice scheme capability with the voice scheme capability of the network side, and the voice scheme capability supported by the terminal is completely different from the voice scheme capability supported by the network side, so that the terminal is judged to be not matched;

step 802: and the terminal disables the 5G capability due to the priority of the voice service, leaves the 5G cell and selects the 4G cell to initiate access.

From the above description, it can be seen that, when the voice scheme capability of the terminal itself is not matched with the voice scheme capability of the network side and the voice service of the terminal is prioritized, the terminal disables the capability of the present system, leaves the cell of the present system, and selects a cell of a different system to initiate access.

Application example seven

In this embodiment, a procedure in which the terminal selects a voice scheme when the voice scheme supported by the terminal itself matches the voice scheme capability supported by the network is described.

In this embodiment, it is assumed that the terminal is voice service first, the voice scheme capability supports both the VoNR scheme and the EPS Fallback scheme, and supports the EPS Fallback scheme with VoNR first times, and the network side supports both the VoNR scheme and the EPS Fallback scheme, and supports the VoNR with EPS Fallback times.

As shown in fig. 9, the procedure of the terminal selecting the scheme of the voice call includes:

step 901: the terminal matches the voice scheme capability of the terminal with the voice scheme capability of the network side, and the terminal judges the voice scheme capability as matching;

step 902: the terminal selects a voice scheme;

if the voice service preference setting is based on the terminal, the terminal selects an EPS Fallback scheme; and if the voice call is set according to the preference of the network voice service, the terminal selects the VoNR scheme.

Step 903: the terminal indicates the selected voice scheme in the RRC connection setup reason for the initiated voice service.

Here, if the EPS Fallback scheme is selected, the terminal indicates the mo-epsFallback or the mt-epsFallback in the RRC connection establishment cause for initiating the voice service.

If the VoNR scheme is selected, the terminal indicates mo-VoNR or mt-VoNR in the RRC connection establishment reason for initiating the voice service.

As can be seen from the above description, for the matching case, the terminal selects one voice scheme from the voice scheme set supported by itself and the network together for voice service. The selection method can be set according to the preference of the terminal voice service or the preference of the network voice service.

After selection, the selected voice scheme may be indicated in the RRC connection establishment cause initiating the voice service.

In order to implement the method on the 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 a network device, as shown in fig. 10, and includes:

a sending unit 101, configured to send capability indication information to a terminal; wherein the content of the first and second substances,

the capability indication information characterizes the capability of the voice scheme supported by the network side; the capability indication information is used for the terminal to select a scheme of the voice call to carry out voice service.

As shown in fig. 10, the apparatus may further include a determining unit 102 configured to determine the capability of the terminal itself.

In practical application, the capability indication information may be issued by means of a system broadcast message or signaling, so as to reduce signaling overhead.

Based on this, in an embodiment, the sending unit 101 is specifically configured to issue the capability indication information through one of the following ways:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

Based on this, in an embodiment, the sending unit 101 is configured to send the selection priority of the VoNR scheme and the EPS Fallback scheme set on the network side when sending the capability indication information to the terminal; the selection priority is used for the terminal to select a scheme of the voice call.

In practical applications, the sending unit 101 may be implemented by a processor in a processing device of a voice service in combination with a communication interface, and the determining unit 102 may be implemented by a processor in a processing device of a voice service.

In order to implement the method at the terminal 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 a terminal, as shown in fig. 11, and includes:

a receiving unit 111, configured to receive capability indication information sent by a network device; the capability indication information characterizes the capability of the voice scheme supported by the network side;

and the processing unit 112 is configured to select a voice call scheme for performing a voice service by using the capability indication information and the capability of the voice scheme of the terminal itself.

The receiving unit 111 may receive the delivered capability indication information through one of the following manners:

receiving the capability indication information issued by the network equipment through a cell system broadcast message;

and sending a registration acceptance message or other NAS signaling by a core network to receive the capability indication information sent by the network equipment.

In an embodiment, the processing unit 112 is specifically configured to:

More specifically, when the matching result represents that the capability corresponding to the capability indication information matches the determined terminal's own voice scheme capability, the processing unit 112 selects a voice scheme from a voice scheme set supported by the network side and the terminal together for performing a voice service;

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal, and the priority of the voice service of the terminal is higher than that of the data service, the processing unit 112 selects a different system cell to initiate an access process;

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal itself, and the priority of the data service of the terminal itself is higher than the priority of the voice service, the processing unit 112 prohibits the voice service.

In an embodiment, after the processing unit 112 selects the voice scheme, the selected voice scheme may be indicated in the RRC connection establishment cause, so that the network device can timely know the voice scheme selected by the terminal.

In an embodiment, when selecting a voice scheme from a voice scheme set commonly supported by the network side and the terminal for performing a voice service, the processing unit 112 selects the voice service for performing the voice service according to the selection priority of the VoNR scheme and the EPS Fallback scheme set by the terminal itself, or the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side.

Based on this, in an embodiment, the capability of the voice scheme supported by the network side is to support both the VoNR scheme and the EPS Fallback scheme; the receiving unit 111 is configured to receive the selection priority of the VoNR scheme and the EPS Fallback scheme set on the network side when receiving the capability indication information sent by the network device.

In practical application, the receiving unit 111 may be implemented by a communication interface in a processing device of a voice service; the processing unit 112 may be implemented by a processor in a processing device for voice services in conjunction with a communication interface.

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 network device, as shown in fig. 12, where the network device 120 includes:

a first communication interface 121 capable of performing information interaction with a terminal;

the first processor 122 is connected to the first communication interface 121 to implement information interaction with a terminal, 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 first memory 123.

Specifically, the first communication interface 121 is configured to issue capability indication information to a terminal under the control of the first processor 122; wherein the content of the first and second substances,

Based on this, in an embodiment, the first communication interface 121 is specifically configured to issue the capability indication information through one of the following ways:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

Based on this, in an embodiment, the first communication interface 121 is further configured to, when sending the capability indication information to the terminal under the control of the first processor 122, send the selection priority of the VoNR scheme and the EPS Fallback scheme set on the network side; the selection priority is used for the terminal to select a scheme of the voice call.

It should be noted that: the specific processing procedures of the first processor 122 and the first communication interface 121 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components of the network device 120 are coupled together by a bus system 124. It will be appreciated that the bus system 124 is used to enable communications among the components. The bus system 124 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 124 in fig. 12.

First memory 123 in embodiments of the present invention is used to store various types of data to support the operation of network device 120. Examples of such data include: any computer program for operating on network device 120.

The method disclosed in the above embodiments of the present invention may be applied to the first processor 122, or implemented by the first processor 122. The first processor 122 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 122 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 122 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 123, and the first processor 122 reads the information in the first memory 123, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the network Device 120 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. 13, where the terminal 130 includes:

a second communication interface 131, which can perform information interaction with a network device;

the second processor 132 is connected to the second communication interface 131 to implement information interaction with a network device, and is configured to execute a method provided by one or more technical solutions of the terminal side when running a computer program. And said computer program is stored on said second memory 133.

Specifically, the second communication interface 131 is configured to receive capability indication information sent by a network device; the capability indication information characterizes the capability of the voice scheme supported by the network side;

and a second processor 132, configured to select a voice call scheme for a voice service by using the capability indication information and the capability of the voice scheme of the terminal itself.

The second communication interface 131 may receive the delivered capability indication information through one of the following manners:

in an embodiment, the second processor 132 is specifically configured to:

More specifically, when the matching result represents that the capability corresponding to the capability indication information matches the determined terminal's own voice scheme capability, the second processor 132 selects a voice scheme from a voice scheme set supported by the network side and the terminal together for performing a voice service;

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal, and the priority of the voice service of the terminal is higher than that of the data service, the second processor 132 selects a different system cell to initiate an access process;

when the matching result represents that the capability corresponding to the capability indication information is not matched with the determined voice scheme capability of the terminal, and the priority of the data service of the terminal is higher than that of the voice service, the second processor 132 prohibits the voice service.

In an embodiment, after the second processor 132 selects the voice scheme, the selected voice scheme may be indicated in the RRC connection establishment cause, so that the network device can timely know the voice scheme selected by the terminal.

In an embodiment, when selecting a voice scheme from the voice scheme set commonly supported by the network side and the terminal for performing the voice service, the second processor 132 selects the voice service for performing the voice service according to the selection priority of the VoNR scheme and the EPS Fallback scheme set by the terminal itself, or the selection priority of the VoNR scheme and the EPS Fallback scheme set by the network side.

Based on this, in an embodiment, the capability of the voice scheme supported by the network side is to support both the VoNR scheme and the EPS Fallback scheme; the second communication interface 131 is configured to receive the selection priority of the VoNR scheme and the EPS Fallback scheme set on the network side when receiving the capability indication information sent by the network device.

It should be noted that: the specific processing procedures of the second processor 132 and the second communication interface 131 are detailed in the method embodiment, and are not described herein again.

Of course, in practical application, the terminal may further include: a user interface 134. The various components in the terminal 130 are coupled together by a bus system 135. It is understood that the bus system 135 is used to enable communications among the components. The bus system 135 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 the bus system 135 in FIG. 13.

User interface 134 may include, among other things, a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touch pad, or a touch screen.

The second memory 133 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 terminal 130.

The method disclosed in the above embodiments of the present invention may be applied to the second processor 132, or implemented by the second processor 132. The second processor 132 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 second processor 132. The second processor 132 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 132 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 133, and the second processor 132 reads the information in the second memory 133 and, in combination with its hardware, performs the steps of the foregoing method.

In an exemplary embodiment, the terminal 130 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 will be appreciated that the memories (first memory 123 and second memory 133) of embodiments of the present invention may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory. 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 Flash 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 Synchronous Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous joint Dynamic Random Access Memory (SLDRAM, SyncLinkDynamic Random Access Memory), Direct Memory (DRmb 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. 14, the system includes:

the network device 141, configured to issue capability indication information to the terminal; the capability indication information characterizes the capability of the voice scheme supported by the network side;

a terminal 142, configured to receive capability indication information sent by the network device 141; and selecting a voice calling scheme to carry out voice service by using the capability indication information and the capability of the voice scheme of the user.

It should be noted that: the specific processing procedures of the network device 141 and the terminal 142 have been 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 123 storing a computer program, where the computer program is executable by the first processor 122 of the network device 120 to perform the steps of the network device side method. For example, the second memory 133 may store a computer program, which may be executed by the second processor 132 of the terminal 130 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 network device, and the method comprises the following steps:

2. The method according to claim 1, wherein the sending down capability indication information comprises one of the following manners:

and sending the capability indication information through a registration acceptance message or other non-access stratum (NAS) signaling sent by a core network.

3. The method of claim 1, wherein the capability of the network-side supported voice scheme is one of:

only supporting a new air interface voice VoNR scheme;

only supporting the EPS Fallback scheme of the evolved packet system;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

4. The method according to claim 1, wherein the capability of the voice scheme supported by the network side is to support a VoNR scheme and an EPS Fallback scheme simultaneously; when the capability indication information is issued, the method further comprises the following steps:

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

6. The method of claim 5, wherein the receiving the delivered capability indication information comprises one of:

7. The method of claim 5, wherein the capability of the network-side supported voice scheme is one of:

support for the VoNR scheme only;

only the EPS Fallback scheme is supported;

and simultaneously supporting a VoNR scheme and an EPS Fallback scheme.

8. The method of claim 5, wherein the selecting a voice call scheme for voice service using the capability indication information and the capability of the voice scheme of the mobile terminal comprises:

9. The method of claim 8, wherein selecting a voice call scheme for voice service using the matching result comprises:

10. The method of claim 9, further comprising:

the selected speech scheme is indicated in the radio resource control, RRC, connection establishment cause.

11. The method according to claim 9, wherein the selecting a voice scheme from the set of voice schemes supported by the network side and the terminal together for voice service comprises:

12. The method according to claim 11, wherein the capability of the voice scheme supported by the network side is to support a VoNR scheme and an EPS Fallback scheme simultaneously; when receiving the capability indication information issued by the network device, the method further includes:

13. The method of claim 8, wherein selecting a voice call scheme for voice service using the matching result comprises:

alternatively, the first and second electrodes may be,

14. An apparatus for processing voice traffic, comprising:

15. The apparatus according to claim 14, wherein the capability of the voice scheme supported by the network side is to support a VoNR scheme and an EPS Fallback scheme simultaneously;

16. An apparatus for processing voice traffic, comprising:

17. The apparatus according to claim 16, wherein the processing unit is specifically configured to:

18. The apparatus according to claim 17, wherein the processing unit is specifically configured to:

19. The apparatus according to claim 17, wherein the processing unit is specifically configured to:

alternatively, the first and second electrodes may be,

20. A network device, comprising:

a first processor;

21. The apparatus of claim 20, wherein the capability of the voice scheme supported by the network side is to support a VoNR scheme and an EPS Fallback scheme simultaneously;

22. A terminal, comprising:

23. The terminal of claim 22, wherein the second processor is specifically configured to:

24. The terminal of claim 23, wherein the second processor is specifically configured to:

25. The terminal of claim 23, wherein the second processor is specifically configured to:

alternatively, the first and second electrodes may be,

26. A 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 4 when running the computer program.

27. 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 5 to 13 when running the computer program.

28. A storage medium having stored thereon a computer program for implementing the steps of the method of any one of claims 1 to 4 or the steps of the method of any one of claims 5 to 13 when executed by a processor.