CN114979082A - Information determination method and device, related equipment and storage medium - Google Patents

Information determination method and device, related equipment and storage medium Download PDF

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Publication number
CN114979082A
CN114979082A CN202110189936.3A CN202110189936A CN114979082A CN 114979082 A CN114979082 A CN 114979082A CN 202110189936 A CN202110189936 A CN 202110189936A CN 114979082 A CN114979082 A CN 114979082A
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China
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information
terminal
network
information indicates
voice
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Chinese (zh)
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姜怡
陈旭
王磊
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN202110189936.3A priority Critical patent/CN114979082A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses an information determination method, an information determination device, first network equipment, second network equipment and a storage medium. The method comprises the following steps: the first network equipment determines fourth information by using the first information, the second information and the third information; the first information indicates a switch state of a Long Term Evolution (LTE) wireless operating mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over Packet Switched (PS) sessions for the terminal using an IP Multimedia Subsystem (IMS).

Description

Information determination method and device, related equipment and storage medium
Technical Field
The present application relates to the field of voice technology of mobile communications, and in particular, to an information determining method, apparatus, related device, and storage medium.
Background
The voice scheme supported by the fifth generation mobile communication technology (5G) system comprises the following steps: voice over new air (VoNR) and evolved packet system fallback (EPS fallback); both voice schemes are based on the IP Multimedia Subsystem (IMS).
Considering that the flows of selecting a network supporting a voice service based on the VoNR and the EPS fallback are different, how to ensure that a terminal can normally use the voice service is a problem to be solved urgently at present.
Disclosure of Invention
In order to solve the related technical problem, embodiments of the present application provide an information determining method, an information determining apparatus, related devices, and a storage medium.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides an information determination method, which is applied to a first network device and comprises the following steps:
determining fourth information by using the first information, the second information and the third information; the first information indicates the switch state of a Long Term Evolution (LTE) wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over Packet Switched (PS) sessions for the terminal using IMS.
In the above scheme, the method further comprises:
the first information is determined.
In the foregoing solution, the determining the first information includes:
determining the first Information by using a first Information Element (IE) and a second IE of a registration request of the terminal; the first IE characterizes mobility management capability of the terminal; the second IE characterizes a network capability of an LTE wireless mode of operation of the terminal.
In the foregoing solution, under the condition that the value of the bit of the LTE wireless operating mode in the first IE is a first value and the registration request does not carry the second IE, the first information indicates that the LTE wireless operating mode of the terminal is in an off state.
In the above solution, in a case that the second information indicates that the voice support capability of the terminal matches the voice support capability of the network, and the third information indicates that the voice support capability of the network at least includes VoNR, the fourth information indicates that the network supports voice over PS session by using IMS.
In the foregoing solution, when the first information indicates that the LTE wireless operating mode of the terminal is in the off state, the second information indicates that the voice support capability of the terminal is matched with the voice support capability of the network, and the third information indicates that the network only supports the evolved EPS fallback, the fourth information indicates that the network does not support the voice of the terminal using the IMS in the PS session.
In the above scheme, when the first information indicates that the LTE wireless operating mode of the terminal is in an open state, the second information indicates that the voice support capability of the terminal is matched with the voice support capability of the network, and the third information indicates that the network only supports EPS fallback, the fourth information indicates that the network supports the voice of the terminal using IMS in a PS session.
In the foregoing solution, the determining fourth information by using the first information, the second information, and the third information includes:
determining the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes mobility management capability of the terminal; the second IE characterizes a network capability of an LTE wireless operating mode of the terminal;
sending the first information to a second network device;
receiving second information determined by the second network device based on the first information; the second information indicates whether the current voice support capability of the terminal is matched with the voice support capability of the network;
and determining the fourth information by using the second information and the third information.
The embodiment of the application provides an information determination method, which is applied to a second network device and comprises the following steps:
receiving first information sent by first network equipment; the first information indicates the switch state of an LTE wireless working mode of the terminal;
determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
sending the second information to the first network device; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
In the foregoing solution, in case that the voice support capability of the terminal at least includes VoNR, the second information indicates whether the current voice support capability of the terminal matches the voice support capability of the network.
In the above solution, when the terminal only supports EPS fallback and the first information indicates that the LTE wireless operating mode of the terminal is in an off state, the second information indicates that the current voice support capability of the terminal is not matched with the voice support capability of the network.
In the above scheme, when the terminal only supports EPS fallback and the first information indicates that the LTE wireless operating mode of the terminal is in an open state, the second information indicates that the current voice support capability of the terminal is matched with the voice support capability of the network.
An embodiment of the present application provides an information determining apparatus, including:
a first processing unit for determining fourth information using the first information, the second information, and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
An embodiment of the present application provides an information determining apparatus, including:
the second receiving unit is used for receiving the first information sent by the first network equipment; the first information indicates the switch state of the LTE wireless working mode of the terminal;
a second processing unit for determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
a second sending unit, configured to send the second information to the first network device; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
An embodiment of the present application provides a first network device, including: a first communication interface and a first processor; wherein the content of the first and second substances,
the first processor is used for determining fourth information by utilizing the first information, the second information and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates a voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
An embodiment of the present application provides a second network device, including: a second communication interface and a second processor; wherein the content of the first and second substances,
the second processor to:
receiving first information sent by first network equipment through the second communication interface; the first information indicates the switch state of the LTE wireless working mode of the terminal;
determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
sending the second information to the first network device through the second communication interface; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
An embodiment of the present application 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 application provides a second network device, 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 methods of the second network device side when running the computer program.
An embodiment of the present application 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 one of the methods of the first network device side or implements the steps of any one of the methods of the second network device side.
According to the information determining method, the information determining device, the related equipment and the storage medium, the first network equipment determines fourth information by using the first information, the second information and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over PS sessions for the terminal using IMS. According to the scheme of the embodiment of the application, when the fourth information is determined, the switching state of the LTE wireless working mode of the terminal is considered, so that the situation that a voice service selection error occurs after the LTE wireless working mode is closed by the terminal only supporting EPS fallback can be avoided, the terminal can normally use the voice service, and the user experience is improved.
Drawings
FIG. 1 is a flow chart illustrating a speech scheme selection mechanism in the related art;
fig. 2 is a schematic flowchart of an information determining method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of another information determination method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an information determining apparatus according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of another information determination apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a first network device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a second network device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an information determination system according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples.
The voice scheme supported by the 5G system comprises the following steps: VoNR and EPS fallback. The basic idea of the VoNR speech scheme is: user Equipment (UE) resides in a 5G network after being started, establishes a session of a Protocol Data Unit (PDU) through a 5G core network (5GC), registers in an IMS network and initiates a voice call; when the coverage condition of the 5G network cannot meet the voice service requirement, the call is Switched to LTE through a Packet-Switched HandOver (PSHO) procedure from the 5G network to a fourth generation mobile communication technology (4G) network to maintain call continuity.
The basic idea of the EPS fallback speech scheme is: the UE resides in a 5G network after being started, establishes a voice PDU session through a 5GC, registers in an IMS network and initiates a voice call; the 5G network rejects the Voice bearer establishment request, and simultaneously initiates a PSHO process from the 5G network to the 4G network to switch the call to the LTE network, and establishes the Voice bearer on an Evolved Packet Core (EPC) to complete subsequent Voice call connection, so that the call is dropped from the 5G network to the Voice over LTE (VoLTE).
In practical application, because the two voice schemes exist, the voice scheme needs to be selected, namely, a voice selection mechanism exists.
Specifically, as shown in fig. 1, the flow of the voice scheme selection may include the following steps:
step 101: an Access and Mobility Management Function (AMF) transmits a UE Capability matching Request (UE Capability Match Request) to a next generation radio Access network (NG-RAN);
in the process of 5G network registration by the UE, when the UE initiates the 5G registration and the AMF receives the registration Request, the voice Capability supported by the UE may be queried from the NG-RAN (specifically, the gNB) through the UE Capability Match Request procedure.
Step 102: after receiving the request, the NG-RAN sends a UE Capability query (UE Capability inquiry) request to the UE;
specifically, the NG-RAN may send a UE Capability inquiry request to the UE through Radio Resource Control (RRC) signaling.
Step 103: after receiving the request, the UE returns UE Capability Information (UE Capability Information) to the NG-RAN;
the UE Capability Information returned by the UE is a Radio Capability (Radio Capability) list returned by the UE, and IMS Parameters (IMS-Parameters) in the Radio Capability list carry the Capability of the UE to support IMS voice service, including whether to support EPS Fallback, whether to support VoNR, and the like.
Step 104: after receiving the information, the NG-RAN sends a UE Capability matching Response (UE Capability Match Response) message to the AMF;
wherein, in the UE Capability Match Response message, a Voice Support Match Indicator (Voice Support Match Indicator) is carried to indicate whether the Voice Support Capability of the UE is matched with the Voice Support Capability of the network, that is, to indicate whether the network and the UE Support the IMS Voice service at the same time.
Specifically, the NG-RAN compares the capability information of the UE, such as the Voice service Support capability (i.e., the capability of supporting the IMS Voice service), the Support frequency band, and the service continuity capability, with the Voice service capability supported by the network (e.g., the Voice service capability supported by the locally configured network), determines whether the network can provide the IMS Voice service to the UE, and then returns a Voice Support matrix Indicator to the AMF to indicate whether the network and the UE Support the IMS Voice service at the same time.
Step 105: the NG-RAN sends a UE Capability information Indication (UE Capability Info Indication) to the AMF.
Here, the UE Capability Info Indication sent by the N-RAN to the AMF may include the specific Capability of the UE, and the AMF receives the specific Capability of the UE and stores the Capability for subsequent use.
After receiving the Voice Support Match Indicator returned by the NG-RAN, the AMF determines whether to set a Voice Support Indication (IMS Voice over PS Session Supported Indication) field of the IMS on the PS Session to Support (Supported) in the registration response message according to the Voice Support Match Indicator.
After receiving the registration response message, if the IMS voice over PS Session Supported Indication is determined to be Supported, the UE can judge that the 5G network can support IMS voice, and therefore the UE can be selected to reside in the 5G network; if it is determined that the IMS voice over PS Session Supported Indication is not Supported (not Supported), if the UE is a voice terminal (i.e., a terminal with a voice center), the UE leaves the 5G network and reselects another network capable of supporting voice service, such as a 4G network or a second generation mobile communication technology (2G) network.
It can be seen from the above procedure that the voice scheme selection mechanism in the related art does not distinguish between two different voice schemes, namely, VoNR and EPS fallback, and does not consider the current wireless capability of the UE. Therefore, if the UE turns off the LTE wireless operation mode due to coverage problems of the 4G network, the above voice scheme selection mechanism may cause problems.
Specifically, according to a voice scheme selection mechanism of the related art, if the UE only supports EPS fallback and the UE reports the service capability, whether the UE currently closes the LTE wireless working mode is not considered, so that the UE still reports the EPS fallback support capability; when the network side also supports the EPS fallback, the network side sets the delivered IMS voice over PS Session Supported Indication to "Supported". However, the basic idea of the EPS fallback voice scheme is to provide the call through VoLTE after the call initiated by the 5G network is switched to the 4G network, so the 5G network cannot directly switch or drop the call to the 2G circuit domain, and the call needs to be switched or dropped to the 2G circuit domain after the call is switched to the 4G network. Therefore, if the UE turns off the LTE wireless operating mode, the EPS fallback will fail, and the UE will not be able to use the voice service at all.
Based on this, in various embodiments of the present application, the AMF obtains the current opening condition of the UE to the LTE wireless working mode, and then determines whether to set "Supported" when issuing the IMS voice over PS Session Supported Indication according to the UE voice support capability, whether the UE currently supports the LTE wireless working mode, and the voice service support capability of the network.
According to the scheme provided by the embodiment of the application, the AMF considers the switching state of the LTE wireless working mode of the UE when setting the IMS voice over PS Session Supported Indication, so that the situation that the voice service selection error occurs after the LTE wireless working mode is closed by the UE only supporting EPS fallback can be avoided, the UE can be ensured to normally use the voice service, and the user experience is improved.
An embodiment of the present application provides an information determining method, which is applied to a first network device (specifically, may be an AMF), and as shown in fig. 2, the method includes:
step 201: determining fourth information by using the first information, the second information and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over PS sessions for the terminal using IMS.
In practical application, the terminal may also be referred to as User Equipment (UE), or may also be referred to as a User.
In practical applications, the LTE wireless operating mode may also be referred to as an LTE mode, or an S1 mode (S1 mode).
The second information may indicate the Voice Support capability of the terminal, and in an embodiment, the second information may be the Voice Support Match Indicator, where the second information does not directly indicate the Voice Support capability of the terminal, but indirectly indicates the Voice Support capability of the terminal through whether the Voice Support capability of the terminal is matched with the Voice Support capability of the network. Of course, in another embodiment, the second information may also specifically indicate voice support capability of the terminal, such as capability of an IMS voice service, including whether to support EPS Fallback, whether to support VoNR, and the like.
The fourth information is the IMS voice over PS Session Supported Indication.
In practical applications, before determining the fourth information, the first network device needs to determine the first information.
Based on this, in an embodiment, the method may further include:
step 200: the first information is determined.
In practical application, in order to save signaling overhead, the first network device may determine the first information by obtaining an IE included in a registration request of the terminal in a process of initiating network registration by the terminal.
Based on this, in an embodiment, the determining the first information may include:
determining the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes mobility management capability of the terminal; the second IE characterizes S1 mode network capabilities of the LTE wireless mode of operation of the terminal.
In actual application, the REGISTRATION REQUEST of the terminal may be represented as REGISTRATION REQUEST; the first IE may specifically include a 5G mobility management capability (5GMM capability) IE, where the 5GMM capability IE is specifically configured to provide the network with information related to interworking (i.e., interaction) of the terminal with the 5G core network and/or the 4G core network; the second IE may specifically include an S1 UE network capability (S1 UE network capability) IE.
Wherein, in the first IE, a bit (english may be represented as bit) of the LTE wireless operating mode is set to a first value, and the first information indicates that the LTE wireless operating mode of the terminal is in an off state when the registration request does not carry the second IE;
and under the condition that the value of the bit of the LTE wireless working mode in the first IE is a second value and the registration request carries the second IE, the first information indicates that the LTE wireless working mode of the terminal is in an open (namely, on) state.
Here, the first value and the second value may be set according to a requirement. Illustratively, the first value may be 0 and the second value may be 1.
In step 201, in actual application, after determining the first information, the first network device may specifically determine the fourth information in the following two ways:
the first method is as follows: determining, by the first network device, fourth information; specifically, in a case that the second information only indicates whether the voice support capability of the terminal matches the voice support capability of the network, and does not indicate whether the current voice support capability of the terminal matches the voice support capability of the network, after the first network device determines the first information, the first network device determines the fourth information by using the first information, the second information, and the third information.
More specifically, when the second information indicates that the Voice Support capability of the terminal matches the Voice Support capability of the network (i.e., Voice Support matrix Indicator is Supported), and the third information indicates that the Voice Support capability of the network at least includes VoNR (i.e., the network supports VoNR and EPS fallback or supports only VoNR), regardless of whether the first information indicates that the LTE wireless operating mode of the terminal is in the closed state or the open state, the fourth information indicates that the network supports the terminal to use Voice over IMS on PS Session, i.e., the first network device is set to "Supported" when issuing a Voice over PS Session Indication, so as to inform the terminal to use IMS Voice service under a new air interface (NR) network (i.e., a 5G network), and avoid the terminal leaving the NR network.
And when the first information indicates that the LTE wireless working mode of the terminal is in a closed state, the second information indicates that the voice support capability of the terminal is matched with the voice support capability of the network, and the third information indicates that the network only supports EPS fallback, the fourth information indicates that the network does not support the voice of the terminal using IMS in a PS Session, that is, the first network device is set to "Supported" when issuing an IMS voice over PS Session Supported Indication.
When the first information indicates that the LTE wireless working mode of the terminal is in an open state, the second information indicates that the voice support capability of the terminal is matched with the voice support capability of the network, and the third information indicates that the network only supports EPS fallback, the fourth information indicates that the network supports the terminal to use voice over PS Session by IMS, that is, the first network device is set to "not Supported" when issuing an IMS voice over PS Session Supported Indication, so as to notify that the terminal cannot use IMS voice service in an NR network.
In a case that the second information specifically indicates the Voice Support capability of the terminal, the second network device may determine, by using the Voice Support capability of the terminal (for example) and the third information, whether the Voice Support capabilities of the network and the terminal are matched, to obtain a matching result, where the matching result may be understood as a Voice Support Match Indicator, and the fourth information is determined according to the matching result, the Voice Support capability of the network, and the first information. The specific processing procedure for determining the fourth information according to the matching result, the voice support capability of the network and the first information can be understood by referring to the above procedures, and will not be described herein.
The second method comprises the following steps: the second network equipment is used for conducting judgment on the fourth information; specifically, when the second information indicates whether the current voice support capability of the terminal matches the voice support capability of the network, the first network device determines the first information, and after determining the first information, the first network device sends the first information to the second network device for the second network device to determine the second information, and then determines the fourth information by using the second information and the third information returned by the second network device.
Based on this, in an embodiment, the determining the fourth information by using the first information, the second information, and the third information may include:
sending the first information to a second network device;
receiving second information determined by the second network device based on the first information; the second information indicates whether the current voice support capability of the terminal is matched with the voice support capability of the network;
and determining the fourth information by using the second information and the third information.
In practical applications, the second network device may be an NR-RAN device, such as a gNB.
In practical application, the first network device may send the first information to the second network device when the voice Capability supported by the terminal is queried by the second network device through the UE Capability Match Request flow shown in fig. 1, in other words, the first information is carried in the UE Capability Match Request. After receiving the first information, the second network device may determine the second information according to the voice support capability reported by the terminal and the first information. Of course, the voice support capability of the network also needs to be considered when determining the second information.
Specifically, under the condition that it is determined that the Voice Support capability of the terminal at least includes VoNR (that is, the terminal supports VoNR and EPS fallback or only supports VoNR) according to the Voice service Support capability reported by the terminal (at this time, the Voice Support capability of the terminal is matched with the Voice Support capability of the network), no matter whether the first information indicates that the LTE wireless operating mode of the terminal is in the closed state or the open state, the second information indicates that the Voice Support capability of the terminal is matched with the Voice Support capability of the network, in other words, the second network device sets the Voice Support Indicator to "supported", that is, the Voice Support Indicator is "supported", so as to notify the AMF that both the terminal and the network Support the IMS Voice service.
When it is determined that the terminal only supports the EPS fallback according to the Voice service Support capability reported by the terminal (at this time, the Voice Support capability of the terminal is matched with the Voice Support capability of the network), and the first information indicates that the LTE wireless working mode of the terminal is in the closed state, the second information indicates that the Voice Support capability of the terminal is not matched with the Voice Support capability of the network, in other words, the second network device sets the Voice Support material Indicator to be "not supported", that is, the Voice Support material Indicator is "not supported", and aims to notify the AMF that the terminal and the network do not both Support the IMS Voice service, that is, notify the AMF that the Voice Support capability of the terminal is not matched with the Voice Support capability of the network.
When it is determined that the terminal only supports the EPS fallback according to the Voice service Support capability reported by the terminal (at this time, the Voice Support capability of the terminal is matched with the Voice Support capability of the network), and the first information indicates that the LTE wireless operating mode of the terminal is in the open state, the second information indicates that the Voice Support capability of the terminal is matched with the Voice Support capability of the network, in other words, the second network device may set the Voice Support material Indicator to "supported", that is, the Voice Support material Indicator is "supported".
Of course, when the Voice Support capability of the terminal and the Voice Support capability of the network are not matched, the second information indicates that the Voice Support capability of the terminal is not matched with the Voice Support capability of the network, in other words, the second network device sets the Voice Support Match Indicator to "not supported", that is, the Voice Support Match Indicator is "not supported".
And after the second network equipment determines the second information, returning the second information to the first network equipment, and determining the fourth information by the first network equipment by using the second information and the third information.
Specifically, when the second information indicates that the Voice Support capability of the terminal is matched with the Voice Support capability of the network (that is, Voice Support Match Indicator is Supported), and the third information indicates that the Voice Support capability of the network includes VoNR, EPS fallback, or both VoNR and EPS fallback, the fourth information indicates that the network supports the terminal to use the Voice of IMS over PS Session, that is, the fourth information is set to "Supported" when the first network device issues an IMS voover PS Session Indication, so as to inform the terminal to use IMS Voice service under an NR network, and avoid the terminal leaving the NR network.
When the second information indicates that the Voice Support capability of the terminal is not matched with the Voice Support capability of the network (i.e., Voice Support matrix Indicator is not Supported), the fourth information indicates that the network does not Support the Voice of the terminal using the IMS in the PS Session, i.e., the first network device is set to "not Supported" when issuing an IMS Voice over PS Session Supported Indication, so as to notify that the terminal cannot use the IMS Voice service in the NR network.
In practical application, since the switch state of the LTE wireless operation mode of the terminal is considered when determining the fourth information, that is, the state of the current LTE wireless operation mode of the terminal is considered, in case the fourth information indicates that the network supports voice over PS sessions for terminals using IMS, that is, in the case that the first network device sets IMS voice over PS Session Supported Indication to "Supported", after the first network device sends the fourth information to the terminal, the terminal may determine that the terminal can use the IMS voice service under NR according to the fourth information, namely, it is determined that the terminal can successfully select a network supporting voice service at least based on the VoNR without the risk of EPS fallback failure (i.e. it is ensured that the terminal can normally use voice service), so that the terminal can choose to reside in a 5G network (i.e. it does not need to leave the NR); in a case where the fourth information indicates that the network does not support the voice of the terminal using the IMS in the PS Session, that is, in a case where the first network device sets the IMS voice over PS Session Supported Indication to "not Supported", after the first network device sends the fourth information to the terminal, the terminal may determine, according to the fourth information, that the terminal cannot use the IMS voice service under NR, that is, determine that the terminal cannot select a network supporting the voice service based on the VoNR or the EPS fallback, where there is a risk of failure of the EPS fallback in the 5G network, and needs to leave the 5G network (i.e., leave the NR) to select another network (e.g., a 4G network or a 2G network) to ensure that the terminal can normally use the voice service.
Correspondingly, an embodiment of the present application further provides an information determining method, which is applied to a second network device, and as shown in fig. 3, the method includes:
step 301: receiving first information sent by first network equipment;
here, the first information indicates a switching state of an LTE wireless operation mode of the terminal;
step 302: determining second information using the first information;
here, the second information indicates whether or not the voice support capability of the terminal matches the voice support capability of the network;
step 303: sending the second information to the first network device;
here, the second information is used for the first network device to determine fourth information; the fourth information indicates whether the network supports voice over PS sessions for the terminal using IMS.
In the information determining method provided by the embodiment of the application, the first network device determines fourth information by using the first information, the second information and the third information; the first information indicates the switch state of an LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS. The scheme of the embodiment of the application perfects a selection mechanism of the 5G voice service in the related technology, and considers the on-off state of the current LTE wireless working mode of the terminal when the voice service providing scheme is selected, so that the problem that the voice service cannot be used due to the fact that the voice service selection error occurs after the LTE wireless working mode is closed in the terminal only supporting EPS fallback can be avoided, the terminal can be ensured to normally use the voice service, and user experience is improved.
In order to implement the method on the first network device side in the embodiment of the present application, an embodiment of the present application further provides an information determining apparatus, which is disposed on the first network device, and as shown in fig. 4, the apparatus includes:
a first processing unit 402 for determining fourth information using the first information, the second information, and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
Wherein, in an embodiment, the first processing unit 402 is further configured to determine the first information.
In an embodiment, the first processing unit 402 is specifically configured to determine the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes mobility management capability of the terminal; the second IE characterizes a network capability of an LTE wireless operating mode of the terminal.
In an embodiment, the apparatus further comprises a first sending unit 403 and a first receiving unit 401; wherein the first processing unit 402 is further configured to:
determining the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes a mobility management capability of the terminal; the second IE characterizes network capabilities of an LTE wireless operating mode of the terminal;
sending the first information to a second network device through the first sending unit 403;
receiving, by the first receiving unit 401, second information determined by the second network device based on the first information; the second information indicates whether the current voice support capability of the terminal is matched with the voice support capability of the network;
and determining the fourth information by using the second information and the third information.
In actual application, the first sending unit 403 and the first receiving unit 401 may be implemented by a communication interface in an information determining apparatus; the first processing unit 402 may be implemented by a processor in an information determination device.
In order to implement the method on the second network device side in the embodiment of the present application, an embodiment of the present application further provides an information determining apparatus, which is disposed on the second network device, and as shown in fig. 5, the apparatus includes:
a second receiving unit 501, configured to receive first information sent by a first network device; the first information indicates the switch state of the LTE wireless working mode of the terminal;
a second processing unit 502 for determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
a second sending unit 503, configured to send the second information to the first network device; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
In practical applications, the second receiving unit 501 and the second sending unit 503 may be implemented by a communication interface in an information determination device; the second processing unit 502 may be implemented by a processor in an information determination device.
It should be noted that: the information determination apparatus provided in the above embodiment is only illustrated by the division of the program modules when determining information, and in practical applications, the above 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 above-described processing. In addition, the information determining apparatus and the information determining method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Based on the hardware implementation of the program module, and in order to implement the method on the first network device side in the embodiment of the present application, an embodiment of the present application further provides a first network device, as shown in fig. 6, where the first network device 600 includes:
a first communication interface 601, which is capable of performing information interaction with a second network device;
the first processor 602 is connected to the first communication interface 601 to implement information interaction with the second network device, and is configured to execute the 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 603.
Specifically, the first processor 602 is configured to determine fourth information using the first information, the second information, and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates a voice support capability of the network; the fourth information indicates whether the network supports voice over PS sessions for the terminal using IMS.
Wherein, in an embodiment, the first processor 602 is further configured to determine the first information.
In an embodiment, the first processor 602 is specifically configured to determine the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes a mobility management capability of the terminal; the second IE characterizes a network capability of an LTE wireless operating mode of the terminal.
In an embodiment, the first processor 602 is further configured to:
determining the first information by using a first IE and a second IE of a registration request of the terminal; the first IE characterizes mobility management capability of the terminal; the second IE characterizes a network capability of an LTE wireless operating mode of the terminal;
sending the first information to a second network device through the first communication interface 601;
receiving, by the first communication interface 601, second information determined by the second network device based on the first information; the second information indicates whether the current voice support capability of the terminal is matched with the voice support capability of the network;
and determining the fourth information by using the second information and the third information.
It should be noted that: the specific processing procedures of the first processor 602 and the first communication interface 601 can be understood by referring to the above-mentioned methods.
Of course, in practice, the various components in the first network device 600 are coupled together by the bus system 604. It is understood that the bus system 604 is used to enable connected communication between these components. The bus system 604 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 identified in fig. 6 as the bus system 604.
The first memory 603 in the embodiment of the present application is used to store various types of data to support the operation of the first network device 600. Examples of such data include: any computer program for operating on the first network device 600.
The method disclosed in the embodiment of the present application may be applied to the first processor 602, or implemented by the first processor 602. The first processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the first processor 602. The first Processor 602 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, or the like. The first processor 602 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the first memory 603, and the first processor 602 reads the information in the first memory 603 and, in conjunction with its hardware, performs the steps of the foregoing method.
In an exemplary embodiment, the first network Device 600 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 second network device side in the embodiment of the present application, an embodiment of the present application further provides a second network device, as shown in fig. 7, where the second network device 700 includes:
a second communication interface 701 capable of performing information interaction with a first network device;
the second processor 702 is connected to the second communication interface 701, so as to implement information interaction with the first network device, 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 second memory 703.
Specifically, the second processor 702 is configured to:
receiving first information sent by a first network device through the second communication interface 701; the first information indicates the switch state of the LTE wireless working mode of the terminal;
determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
sending the second information to the first network device through the second communication interface 701; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
It should be noted that: the specific processing procedures of the second processor 702 and the second communication interface 701 can be understood by referring to the methods described above.
Of course, in practice, the various components in the second network device 700 are coupled together by the bus system 704. It is understood that the bus system 704 is used to enable communications among the components. The bus system 704 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 in fig. 7 as the bus system 704.
The second memory 703 in the embodiment of the present application is used to store various types of data to support the operation of the second network device 700. Examples of such data include: any computer program for operating on the second network device 700.
The method disclosed in the embodiments of the present application can be applied to the second processor 702, or implemented by the second processor 702. The second processor 702 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the second processor 702. The second processor 702 may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like. The second processor 702 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 703, and the second processor 702 reads the information in the second memory 703, and completes the steps of the foregoing method in combination with its hardware.
In an exemplary embodiment, the second network device 700 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 603 and the second memory 703) of the embodiments of the present application may be 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 Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, 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), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.
In order to implement the method provided by the embodiment of the present application, an embodiment of the present application further provides an information determining system, as shown in fig. 8, where the system includes: a first network device 801 and a second network device 802.
Here, it should be noted that: the specific processing procedures of the first network device 801 and the second network device 802 have been described in detail above, and are not described herein again.
In an exemplary embodiment, the present application further provides a storage medium, specifically a computer storage medium, which is a computer readable storage medium, for example, the storage medium includes a first memory 603 storing a computer program, where the computer program is executable by the first processor 602 of the first network device 600 to perform the steps of the first network device side method. For example, the second memory 703 may store a computer program, which may be executed by the second processor 702 of the second network device 700 to perform the steps of the method at the second network device side. 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: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims (19)

1. An information determination method applied to a first network device includes:
determining fourth information by using the first information, the second information and the third information; the first information indicates the switch state of a Long Term Evolution (LTE) wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a packet switched, PS, session for the terminal using an IP multimedia subsystem, IMS.
2. The method of claim 1, further comprising:
the first information is determined.
3. The method of claim 2, wherein the determining the first information comprises:
determining the first information by using a first information element and a second information element of a registration request of the terminal; the first information element characterizes the mobility management capability of the terminal; the second information element characterizes a network capability of an LTE wireless operating mode of the terminal.
4. The method of claim 3, wherein the first information indicates that the LTE wireless operating mode of the terminal is in an off state when a bit value of the LTE wireless operating mode in the first information element is a first value and the second information element is not carried in the registration request.
5. The method according to any one of claims 1 to 4, wherein in a case that the second information indicates that the voice support capability of the terminal matches the voice support capability of the network, and the third information indicates that the voice support capability of the network at least includes VoNR carried over the new air interface, the fourth information indicates that the network supports voice over PS session by using IMS.
6. The method according to any of claims 1 to 4, wherein in a case that the first information indicates that the LTE wireless operation mode of the terminal is in an off state, the second information indicates that the voice support capability of the terminal matches the voice support capability of the network, and the third information indicates that the network only supports EPS fallback, the fourth information indicates that the network does not support voice over PS sessions using IMS by the terminal.
7. The method according to any of claims 1 to 4, wherein in a case where the first information indicates that the LTE wireless operation mode of the terminal is on, the second information indicates that the voice support capability of the terminal matches the voice support capability of the network, and the third information indicates that the network only supports EPS fallback, the fourth information indicates that the network supports voice over PS session using IMS.
8. The method of claim 1, wherein determining the fourth information using the first information, the second information, and the third information comprises:
determining the first information by using a first information element and a second information element of a registration request of the terminal; the first information element characterizes the mobility management capability of the terminal; the second information element characterizes a network capability of an LTE wireless operating mode of the terminal;
sending the first information to a second network device;
receiving second information determined by the second network device based on the first information; the second information indicates whether the current voice support capability of the terminal is matched with the voice support capability of the network;
and determining the fourth information by using the second information and the third information.
9. An information determination method applied to a second network device includes:
receiving first information sent by first network equipment; the first information indicates the switch state of the LTE wireless working mode of the terminal;
determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
sending the second information to the first network device; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
10. The method according to claim 9, wherein the second information indicates whether the current voice support capability of the terminal matches the voice support capability of the network in case that the voice support capability of the terminal contains at least VoNR.
11. The method according to claim 9, wherein in case that the terminal only supports EPS fallback and the first information indicates that the LTE wireless operating mode of the terminal is in an off state, the second information indicates that the current voice support capability of the terminal does not match the voice support capability of the network.
12. The method according to claim 9, wherein in case that the terminal only supports EPS fallback and the first information indicates that the LTE wireless operating mode of the terminal is in an on state, the second information indicates that the current voice support capability of the terminal matches the voice support capability of the network.
13. An information determining apparatus, comprising:
a first processing unit for determining fourth information using the first information, the second information, and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
14. An information determining apparatus, comprising:
a second receiving unit, configured to receive first information sent by a first network device; the first information indicates the switch state of the LTE wireless working mode of the terminal;
a second processing unit for determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
a second sending unit, configured to send the second information to the first network device; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
15. A first network device, comprising: a first communication interface and a first processor; wherein, the first and the second end of the pipe are connected with each other,
the first processor is used for determining fourth information by utilizing the first information, the second information and the third information; the first information indicates the switch state of the LTE wireless working mode of the terminal; the second information indicates voice support capability of the terminal; the third information indicates voice support capability of the network; the fourth information indicates whether the network supports voice over a PS session for the terminal using IMS.
16. A second network device, comprising: a second communication interface and a second processor; wherein the content of the first and second substances,
the second processor to:
receiving first information sent by first network equipment through the second communication interface; the first information indicates the switch state of the LTE wireless working mode of the terminal;
determining second information using the first information; the second information indicates whether the voice support capability of the terminal is matched with the voice support capability of the network;
sending the second information to the first network device through the second communication interface; the second information is used for the first network equipment to determine fourth information; the fourth information indicates whether the network supports voice over PS sessions for the terminal using IMS.
17. 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 8 when running the computer program.
18. A second network device, 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 9 to 12 when running the computer program.
19. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 8 or for performing the steps of the method of any one of claims 9 to 12 when executed by a processor.
CN202110189936.3A 2021-02-18 2021-02-18 Information determination method and device, related equipment and storage medium Pending CN114979082A (en)

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