Information determination method, device, related equipment and storage medium

Abstract

The present application discloses an information determination method, apparatus, first network device, second network device and storage medium. The method includes: the first network device determines fourth information using first information, second information and third information; the first information indicates the switch state of the long-term evolution (LTE) wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates the voice support capability of the network; the fourth information indicates whether the network supports the voice of the terminal using the IP multimedia subsystem (IMS) on the packet switching (PS) session.

Description

Technical Field

[0001] The present application relates to the field of voice technology of mobile communications, and in particular to an information determination method, apparatus, related equipment and storage medium. Background Art

[0002] The voice solutions supported by the fifth generation mobile communication technology (5G) system include: Voice over NR (VoNR) and evolved packet system fallback (EPS fallback); both voice solutions are based on the IP Multimedia Subsystem (IMS).

[0003] Considering the different processes for selecting a network that supports voice services based on VoNR and EPS fallback, how to ensure that terminals can use voice services normally is an urgent problem to be solved. Summary of the invention

[0004] To solve the related technical problems, the embodiments of the present application provide an information determination method, apparatus, related equipment and storage medium.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] The embodiment of the present application provides an information determination method, which is applied to a first network device, including:

[0007] The fourth information is determined using the first information, the second information and the third information; the first information indicates the switch state of the Long Term Evolution (LTE) wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on a packet switched (PS) session.

[0008] In the above scheme, the method further includes:

[0009] The first information is determined.

[0010] In the above solution, the determining the first information includes:

[0011] The first information is determined using a first information element (IE) and a second IE of a registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal.

[0012] In the above scheme, when the value of the bit of the LTE wireless working mode in the first IE is set to the first value and the second IE is not carried in the registration request, the first information indicates that the LTE wireless working mode of the terminal is in the closed state.

[0013] In the above scheme, when 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 the terminal to use IMS voice on the PS session.

[0014] In the above scheme, when 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 matches 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 terminal's voice using IMS on the PS session.

[0015] In the above scheme, when the first information indicates that the LTE wireless working mode of the terminal is in the on 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 supports the terminal to use IMS voice on the PS session.

[0016] In the above solution, the method of determining the fourth information by using the first information, the second information and the third information includes:

[0017] The first information is determined using a first IE and a second IE of a registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal;

[0018] Sending the first information to a second network device;

[0019] receiving second information determined by the second network device based on the first information; the second information indicating whether the current voice support capability of the terminal matches the voice support capability of the network;

[0020] The fourth information is determined using the second information and the third information.

[0021] The embodiment of the present application provides an information determination method, which is applied to a second network device, including:

[0022] Receiving first information sent by a first network device; the first information indicates a switch state of an LTE wireless working mode of the terminal;

[0023] Determining second information using the first information; the second information indicating whether the voice support capability of the terminal matches the voice support capability of the network;

[0024] The second information is sent to the first network device; the second information is used by the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session.

[0025] In the above scheme, when the voice support capability of the terminal includes at least VoNR, the second information indicates whether the current voice support capability of the terminal matches the voice support capability of the network.

[0026] In the above scheme, when the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in the 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.

[0027] In the above scheme, when the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is on, the second information indicates that the current voice support capability of the terminal matches the voice support capability of the network.

[0028] The present application provides an information determination device, including:

[0029] The first processing unit is used to determine the 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0030] The present application provides an information determination device, including:

[0031] A second receiving unit is used to receive first information sent by the first network device; the first information indicates the switch state of the LTE wireless working mode of the terminal;

[0032] a second processing unit, configured to determine second information using the first information; the second information indicating whether the voice support capability of the terminal matches the voice support capability of the network;

[0033] The second sending unit is used to send the second information to the first network device; the second information is used for the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0034] The embodiment of the present application provides a first network device, comprising: a first communication interface and a first processor; wherein:

[0035] The first processor is used 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0036] The embodiment of the present application provides a second network device, including: a second communication interface and a second processor; wherein,

[0037] The second processor is configured to:

[0038] Receiving first information sent by the first network device through the second communication interface; the first information indicates the switch state of the LTE wireless working mode of the terminal;

[0039] Determining second information using the first information; the second information indicating whether the voice support capability of the terminal matches the voice support capability of the network;

[0040] The second information is sent to the first network device through the second communication interface; the second information is used by the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session.

[0041] An embodiment of the present application provides a first network device, including: a first processor and a first memory for storing a computer program that can be run on the processor,

[0042] Wherein, when the first processor is used to run the computer program, it executes the steps of any one of the above-mentioned methods on the first network device side.

[0043] An embodiment of the present application provides a second network device, including: a second processor and a second memory for storing a computer program that can be run on the processor.

[0044] Wherein, when the second processor is used to run the computer program, it executes the steps of any method on the second network device side.

[0045] An embodiment of the present application provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the computer program implements the steps of any method on the first network device side or the steps of any method on the second network device side.

[0046] The information determination method, apparatus, related equipment and storage medium provided in the embodiments of the present application, the first network device determines the 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session. In the scheme of the embodiments of the present application, when determining the fourth information, the first network device takes into account the switch state of the LTE wireless working mode of the terminal, so that the terminal that only supports EPS fallback can avoid voice service selection errors after turning off the LTE wireless working mode, thereby ensuring that the terminal can use voice services normally and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A flow chart of a voice scheme selection mechanism in the related art;

[0048] Figure 2 This is a flow chart of a method for determining information according to an embodiment of the present application;

[0049] Figure 3 This is a flow chart of another information determination method according to an embodiment of the present application;

[0050] Figure 4 This is a schematic diagram of the structure of an information determination device according to an embodiment of the present application;

[0051] Figure 5 This is a schematic diagram of the structure of another information determination device according to an embodiment of the present application;

[0052] Figure 6 This is a schematic diagram of the structure of the first network device in the embodiment of the present application;

[0053] Figure 7 This is a schematic diagram of the structure of the second network device in the embodiment of the present application;

[0054] Figure 8 This is a schematic diagram of the information determination system structure of an embodiment of the present application. DETAILED DESCRIPTION

[0055] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0056] The voice solutions supported by the 5G system include VoNR and EPS fallback. The basic idea of ​​the VoNR voice solution is that after the user equipment (UE) is turned on, it resides in the 5G network, establishes a voice protocol data unit (PDU) session through the 5G core network (5GC), registers in the IMS network and initiates a voice call; when the coverage conditions of the 5G network cannot meet the requirements of the voice service, the call is switched to LTE through the packet-switched handover (PSHO) process from the 5G network to the fourth-generation mobile communication technology (4G) network to maintain call continuity.

[0057] The basic idea of ​​the EPS fallback voice solution is: after the UE is turned on, it resides in the 5G network, establishes a voice PDU session through 5GC, registers in the IMS network and initiates a voice call; the 5G network rejects the voice bearer establishment request, and at the same time initiates the PSHO process from the 5G network to the 4G network to switch the call to the LTE network, and establishes a voice bearer on the Evolved Packet Core (EPC) network to complete the subsequent voice call connection, thereby falling back from the 5G network to the voice carried by LTE (VoLTE, Voice over LTE).

[0058] In actual application, since there are the above two voice schemes, it is necessary to select a voice scheme, that is, there is a voice selection mechanism.

[0059] Specifically, Figure 1 As shown, the process of voice scheme selection may include the following steps:

[0060] Step 101: Access and Mobility Management Function (AMF) sends a UE Capability Match Request to the Next Generation Radio Access Network (NG-RAN);

[0061] Among them, during the process of UE registering with the 5G network, when the UE initiates 5G registration and the AMF receives the registration request, it can query the voice capabilities supported by the UE to the NG-RAN (specifically, it can be gNB) through the UE Capability Match Request process.

[0062] Step 102: After receiving the request, the NG-RAN sends a UE Capability Enquiry request to the UE;

[0063] Specifically, NG-RAN may send a UE Capability Enquiry request to the UE via Radio Resource Control (RRC) signaling.

[0064] Step 103: After receiving the request, the UE returns UE capability information (UE Capability Information) to the NG-RAN;

[0065] Among them, the UE Capability Information returned by the UE, that is, the radio capability (RadioCapability) list of the UE is returned. The IMS parameters (IMS-Parameters) in the Radio Capability list carry the UE's ability to support IMS voice services, including whether it supports EPS Fallback, whether it supports VoNR, etc.

[0066] Step 104: After receiving the information, NG-RAN sends a UE Capability Match Response message to AMF;

[0067] The UE Capability Match Response message carries a voice support match indicator (Voice Support Match Indicator) to indicate whether the voice support capability of the UE matches 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.

[0068] Specifically, NG-RAN compares the UE's voice service support capability (i.e., the ability to support IMS voice services), supported frequency bands, service continuity capabilities and other capability information with the voice service capabilities supported by the network (such as the voice service capabilities supported by the locally configured network), and determines whether the network can provide IMS voice services to the UE, and then returns a VoiceSupport Match Indicator to the AMF to indicate whether the network and UE support IMS voice services at the same time.

[0069] Step 105: NG-RAN sends a UE Capability Info Indication to the AMF.

[0070] Here, the UE Capability Info Indication sent by N-RAN to AMF may include the specific capabilities of the UE. After receiving the specific capabilities of the UE, AMF stores them for subsequent use.

[0071] After receiving the Voice Support Match Indicator returned by NG-RAN, AMF decides whether to set the IMS voice over PS Session Supported Indication field in the registration response message to supported according to the Voice Support Match Indicator.

[0072] After the UE receives the registration response message, if it is determined that IMS voice over PS Session Supported Indication is supported, it can be determined that the 5G network can support IMS voice. Therefore, the UE will choose to reside in the 5G network; if it is determined that IMS voice over PS Session Supported Indication is not supported (not supported), if the UE is a voice terminal (i.e., a voice-centric terminal), the UE will leave the 5G network and reselect other networks that can support voice services, such as 4G networks or second-generation mobile communication technology (2G) networks.

[0073] From the above process, it can be seen that the voice solution selection mechanism in the related art does not distinguish between the two different voice solutions, VoNR and EPSfallback, and does not consider the current wireless capabilities of the UE. Therefore, if the UE turns off the LTE wireless working mode due to 4G network coverage issues, the above voice solution selection mechanism will have problems.

[0074] Specifically, according to the voice scheme selection mechanism of the relevant technology, if the UE only supports EPS fallback, and the UE does not consider whether the UE currently turns off the LTE wireless working mode when reporting the service capability, the UE will still report the support of EPS fallback capability; when the network side also supports EPS fallback, the network side will set the sent IMS voice over PSSession Supported Indication to "supported". However, the basic idea of ​​the EPS fallback voice scheme is to provide it through VoLTE after the call initiated by the 5G network is switched to the 4G network. Therefore, the 5G network cannot directly switch the call or fall back to the 2G circuit domain. The call must be switched to the 4G network first, and then switched or fell back to the 2G circuit domain. Therefore, if the UE turns off the LTE wireless working mode, EPS fallback will fail, and the UE will be completely unable to use voice services.

[0075] Based on this, in various embodiments of the present application, the AMF obtains the current opening status of the UE for the LTE wireless working mode, and then decides whether to set it to "supported" when sending the IMS voice over PS Session Supported Indication based on the UE voice support capability, whether the UE currently supports the LTE wireless working mode, and the network's voice service support capability.

[0076] The solution provided in the embodiment of the present application takes into account the switch state of the UE's LTE wireless working mode when setting the IMS voice over PS SessionSupported Indication by the AMF. In this way, it is possible to avoid voice service selection errors in the UE that only supports EPS fallback after turning off the LTE wireless working mode, thereby ensuring that the UE can use the voice service normally and improving the user experience.

[0077] The embodiment of the present application provides an information determination method, which is applied to a first network device (specifically, AMF), such as Figure 2 As shown, the method includes:

[0078] Step 201: 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0079] In actual application, the terminal may also be referred to as user equipment (UE) or a user.

[0080] In actual application, the LTE wireless working mode may also be referred to as LTE mode, or S1 mode (S1 mode).

[0081] The second information can indicate the voice support capability of the terminal. In one embodiment, the second information may refer to the above-mentioned Voice Support Match Indicator. At this time, the second information does not directly indicate the voice support capability of the terminal, but indirectly indicates the voice support capability of the terminal by whether the voice support capability of the terminal matches the voice support capability of the network. Of course, in another embodiment, the second information may also specifically indicate the voice support capability of the terminal, such as the capability of IMS voice service, including whether EPS Fallback is supported, whether VoNR is supported, etc.

[0082] The fourth information refers to the aforementioned IMS voice over PS Session Supported Indication.

[0083] In actual application, before determining the fourth information, the first network device needs to determine the first information first.

[0084] Based on this, in one embodiment, the method may further include:

[0085] Step 200: Determine the first information.

[0086] In actual application, in order to save signaling overhead, the first network device may determine the first information by acquiring the IE included in the registration request of the terminal during the process of the terminal initiating network registration.

[0087] Based on this, in one embodiment, determining the first information may include:

[0088] The first information is determined using the first IE and the second IE of the registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the S1 mode network capability of the LTE wireless working mode of the terminal.

[0089] In actual application, the registration request of the terminal can be expressed as REGISTRATION REQUEST; the first IE can specifically include a 5G mobile management capability (5GMM capability) IE, and the 5GMM capability IE is specifically used to provide the network with information related to the intercommunication (i.e., interaction) between the terminal and the 5G core network and / or the 4G core network; the second IE can specifically include an S1 UE network capability (S1 UE network capability) IE.

[0090] Among them, when the value of the bit (which can be expressed as bit in English) of the LTE wireless working mode in the first IE is set to a first value, and the registration request does not carry the second IE, the first information indicates that the LTE wireless working mode of the terminal is in an off state;

[0091] When the value of the bit of the LTE wireless working mode in the first IE is set to 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 (ie, turned on) state.

[0092] Here, the first value and the second value can be set as required. For example, the first value can be 0, and the second value can be 1.

[0093] 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:

[0094] Method 1: The first network device takes the lead in determining the fourth information; specifically, when 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 uses the first information, the second information and the third information to determine the fourth information.

[0095] 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 Match Indicator is supported), and the third information indicates that the voice support capability of the network includes at least VoNR (i.e., the network supports VoNR and EPS fallback or only supports VoNR), regardless of whether the first information indicates that the LTE wireless working mode of the terminal is in the off state or the on state, the fourth information indicates that the network supports the terminal to use IMS voice over PS session, that is, the first network device sends IMS voiceover PS Session Supported Indication and is set to "supported", in order to inform the terminal to use IMS voice services in the new air interface (NR) network (i.e., in the 5G network) to avoid the terminal leaving the NR network.

[0096] When 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 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 the terminal using IMS voice over PS session, that is, the first network device is set to "supported" when sending IMS voice over PS Session Supported Indication.

[0097] When the first information indicates that the LTE wireless working 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 the terminal to use IMS voice over PS session, that is, the first network device sends IMS voice over PS Session Supported Indication and sets it to "not supported", in order to inform the terminal that the IMS voice service cannot be used under the NR network.

[0098] In the case where the second information specifically indicates the voice support capability of the terminal, the second network device can use the voice support capability of the terminal (for example) and the third information to determine whether the voice support capability of the network and the terminal matches, and obtain a matching result, which can be understood as Voice Support Match Indicator, and the fourth information is determined based on the matching result, the voice support capability of the network, and the first information. The specific processing process of determining the fourth information based on the matching result, the voice support capability of the network, and the first information can be understood by referring to the above process, and will not be repeated here.

[0099] Method 2: The second network device takes the lead in determining 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 the first network device determines the first information, the first information is sent to the second network device for the second network device to determine the second information, and then the second information returned by the second network device and the third information are used to determine the fourth information.

[0100] Based on this, in one embodiment, determining the fourth information by using the first information, the second information and the third information may include:

[0101] Sending the first information to a second network device;

[0102] receiving second information determined by the second network device based on the first information; the second information indicating whether the current voice support capability of the terminal matches the voice support capability of the network;

[0103] The fourth information is determined using the second information and the third information.

[0104] In actual application, the second network device may be an NR-RAN device, such as a gNB.

[0105] In actual application, the first network device can be Figure 1 When the UE Capability Match Request process shown in the figure queries the voice capability supported by the terminal to the second network device, the first information is sent to the second network device. In other words, the first information is carried in the UE Capability Match Request. After receiving the first information, the second network device can determine the second information based on the voice support capability reported by the terminal and the first information. Of course, when determining the second information, the voice support capability of the network also needs to be considered.

[0106] Specifically, when it is determined based on the voice service support capability reported by the terminal that the voice support capability of the terminal includes at least VoNR (that is, the terminal supports VoNR and EPS fallback or only supports VoNR) (at this time, the voice support capability of the terminal matches the voice support capability of the network), regardless of whether the first information indicates that the LTE wireless working mode of the terminal is in the off state or the on state, the second information indicates that the voice support capability of the terminal matches the voice support capability of the network. In other words, the second network device sets the Voice Support Match Indicator to "supported", that is, the Voice Support Match Indicator is "supported", the purpose of which is to notify the AMF that both the terminal and the network support IMS voice services.

[0107] When it is determined based on the voice service support capability reported by the terminal that the terminal only supports EPS fallback (at this time, the voice support capability of the terminal matches the voice support capability of the network), and the first information indicates that the LTE wireless working mode of the terminal is in the off state, the second information indicates that the voice support capability of the terminal does not match 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", the purpose of which is to notify the AMF that the terminal and the network do not both support IMS voice services, that is, to notify the AMF that the voice support capability of the terminal does not match the voice support capability of the network.

[0108] When it is determined based on the voice service support capability reported by the terminal that the terminal only supports EPS fallback (at this time, the voice support capability of the terminal matches the voice support capability of the network), and the first information indicates that the LTE wireless working 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. In other words, the second network device can set the Voice Support Match Indicator to "supported", that is, the Voice Support Match Indicator is "supported".

[0109] Of course, when the voice support capability of the terminal does not match the voice support capability of the network, the second information indicates that the voice support capability of the terminal does not match 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".

[0110] After determining the second information, the second network device returns the second information to the first network device, and the first network device determines the fourth information using the second information and the third information.

[0111] Specifically, when the second information indicates that the voice support capability of the terminal matches the voice support capability of the network (that is, the Voice Support Match Indicator is supported), and the third information indicates that the voice support capability of the network includes VoNR, or EPS fallback, or VoNR and EPS fallback, the fourth information indicates that the network supports the terminal to use IMS voice over PS session, that is, the first network device sends IMS voice overPS Session Supported Indication and is set to "supported", in order to inform the terminal to use IMS voice services under the NR network to avoid the terminal leaving the NR network.

[0112] When the second information indicates that the voice support capability of the terminal does not match the voice support capability of the network (that is, the Voice Support Match Indicator is not supported), the fourth information indicates that the network does not support the terminal using IMS voice over PS session, that is, the first network device sends IMS voice over PS SessionSupported Indication and is set to "not supported". The purpose is to inform the terminal that the IMS voice service cannot be used in the NR network.

[0113] In actual application, since the switch state of the LTE wireless working mode of the terminal is considered when determining the fourth information, that is, the state of the current LTE wireless working mode of the terminal is considered, so when the fourth information indicates that the network supports the terminal to use IMS voice over PS session, that is, when the first network device sets IMS voice over PSSession Supported Indication to "supported", after the first network device sends the fourth information to the terminal, the terminal can determine that it can use the IMS voice service under NR according to the fourth information, that is, it determines that it can at least successfully select a network that supports voice services based on VoNR, and there is no risk of EPS fallback failure (that is, it is guaranteed that the terminal can use the voice service normally), so the terminal can choose to stay in the 5G network (that is, there is no need to leave NR); when the fourth information indicates that the network does not support the terminal to use IMS voice over PS session, that is, when the first network device sets IMS voice over PS Session Supported Indication to "not supported", after the first network device sends the fourth information to the terminal, the terminal can determine that it cannot use the IMS voice service under NR according to the fourth information, that is, it determines that it cannot use the IMS voice service based on VoNR or EPS Fallback selects a network that supports voice services. There is a risk of EPS fallback failure in the 5G network. It is necessary to leave the 5G network (that is, leave NR) and select other networks (such as 4G network or 2G network) to ensure that it can use voice services normally.

[0114] Accordingly, the embodiment of the present application also provides an information determination method, which is applied to a second network device, such as Figure 3 As shown, the method includes:

[0115] Step 301: receiving first information sent by a first network device;

[0116] Here, the first information indicates the switch state of the LTE wireless working mode of the terminal;

[0117] Step 302: Determine second information using first information;

[0118] Here, the second information indicates whether the voice support capability of the terminal matches the voice support capability of the network;

[0119] Step 303: Sending the second information to the first network device;

[0120] Here, the second information is used by the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice over PS session.

[0121] In the information determination method provided in the embodiment of the present application, the first network device determines the 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session. The scheme of the embodiment of the present application improves the selection mechanism of 5G voice services in the related technology. When selecting the voice service provision scheme, the switch state of the current LTE wireless working mode of the terminal is taken into consideration. In this way, the problem of the inability to use voice services due to voice service selection errors after the LTE wireless working mode is turned off for terminals that only support EPS fallback can be avoided, thereby ensuring that the terminal can use voice services normally and improving user experience.

[0122] In order to implement the method on the first network device side of the embodiment of the present application, the embodiment of the present application also provides an information determination device, which is set on the first network device, such as Figure 4 As shown, the device comprises:

[0123] The first processing unit 402 is used to determine the 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0124] In one embodiment, the first processing unit 402 is further configured to determine the first information.

[0125] In one embodiment, the first processing unit 402 is specifically used to determine the first information using the first IE and the second IE of the registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal.

[0126] In one embodiment, the device further includes a first sending unit 403 and a first receiving unit 401; wherein the first processing unit 402 is further configured to:

[0127] The first information is determined using a first IE and a second IE of a registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal;

[0128] Sending the first information to the second network device through the first sending unit 403;

[0129] 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 matches the voice support capability of the network;

[0130] The fourth information is determined using the second information and the third information.

[0131] In actual application, the first sending unit 403 and the first receiving unit 401 can be implemented by a communication interface in the information determination device; the first processing unit 402 can be implemented by a processor in the information determination device.

[0132] In order to implement the method on the second network device side of the embodiment of the present application, the embodiment of the present application also provides an information determination device, which is set on the second network device, such as Figure 5 As shown, the device comprises:

[0133] The second receiving unit 501 is used to receive first information sent by the first network device; the first information indicates the switch state of the LTE wireless working mode of the terminal;

[0134] The second processing unit 502 is configured to determine second information using the first information; the second information indicates whether the voice support capability of the terminal matches the voice support capability of the network;

[0135] The second sending unit 503 is used to send the second information to the first network device; the second information is used by the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0136] In actual application, the second receiving unit 501 and the second sending unit 503 can be implemented by a communication interface in the information determination device; the second processing unit 502 can be implemented by a processor in the information determination device.

[0137] It should be noted that: the information determination device provided in the above embodiment only uses the division of the above program modules as an example to illustrate when determining information. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the information determination device provided in the above embodiment and the information determination method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0138] Based on the hardware implementation of the above program module, and in order to implement the method of the first network device side of the embodiment of the present application, the embodiment of the present application also provides a first network device, such as Figure 6 As shown, the first network device 600 includes:

[0139] The first communication interface 601 is capable of exchanging information with the second network device;

[0140] The first processor 602 is connected to the first communication interface 601 to implement information exchange with the second network device, and is used to execute the method provided by one or more technical solutions of the first network device side when running a computer program. The computer program is stored in the first memory 603.

[0141] Specifically, the first processor 602 is used 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session.

[0142] In one embodiment, the first processor 602 is further configured to determine the first information.

[0143] In one embodiment, the first processor 602 is specifically configured to determine the first information using a first IE and a second IE of a registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal.

[0144] In one embodiment, the first processor 602 is further configured to:

[0145] The first information is determined using a first IE and a second IE of a registration request of the terminal; the first IE represents the mobility management capability of the terminal; and the second IE represents the network capability of the LTE wireless working mode of the terminal;

[0146] Sending the first information to the second network device through the first communication interface 601;

[0147] Receiving, through 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 matches the voice support capability of the network;

[0148] The fourth information is determined using the second information and the third information.

[0149] It should be noted that the specific processing process of the first processor 602 and the first communication interface 601 can be understood by referring to the above method.

[0150] Of course, in actual application, the various components in the first network device 600 are coupled together through the bus system 604. It can be understood that the bus system 604 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 6 Various buses are labeled as bus system 604 .

[0151] 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 used to operate on the first network device 600.

[0152] The method disclosed in the above embodiment of the present application can be applied to the first processor 602, or implemented by the first processor 602. The first processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the first processor 602. The first processor 602 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The first processor 602 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the first memory 603, and the first processor 602 reads the information in the first memory 603 and completes the steps of the above method in combination with its hardware.

[0153] 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, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.

[0154] Based on the hardware implementation of the above program module, and in order to implement the method of the second network device side of the embodiment of the present application, the embodiment of the present application also provides a second network device, such as Figure 7 As shown, the second network device 700 includes:

[0155] The second communication interface 701 is capable of exchanging information with the first network device;

[0156] The second processor 702 is connected to the second communication interface 701 to implement information exchange with the first network device, and is used to execute the method provided by one or more technical solutions of the second network device side when running a computer program. The computer program is stored in the second memory 703.

[0157] Specifically, the second processor 702 is configured to:

[0158] Receiving first information sent by a first network device through the second communication interface 701; the first information indicates a switch state of an LTE wireless working mode of the terminal;

[0159] Determining second information using the first information; the second information indicating whether the voice support capability of the terminal matches the voice support capability of the network;

[0160] The second information is sent to the first network device through the second communication interface 701; the second information is used for the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session.

[0161] It should be noted that the specific processing process of the second processor 702 and the second communication interface 701 can be understood by referring to the above method.

[0162] Of course, in actual application, the various components in the second network device 700 are coupled together through the bus system 704. It can be understood that the bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 704 .

[0163] 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 used to operate on the second network device 700.

[0164] The method disclosed in the above embodiment 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 with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of the hardware in the second processor 702 or an instruction in the form of software. The second processor 702 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The second processor 702 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is 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 above method in combination with its hardware.

[0165] In an exemplary embodiment, the second network device 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0166] It can be understood that the memory (first memory 603, second memory 703) of the embodiment of the present application can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a ferromagnetic random access memory, a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example 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), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0167] In order to implement the method provided in the embodiment of the present application, the embodiment of the present application also provides an information determination system, such as Figure 8 As shown, the system includes: a first network device 801 and a second network device 802.

[0168] Here, it should be noted that the specific processing process of the first network device 801 and the second network device 802 has been described in detail above and will not be repeated here.

[0169] In an exemplary embodiment, the embodiment of the present application further provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 603 storing a computer program, and the computer program can be executed by the first processor 602 of the first network device 600 to complete the steps of the aforementioned first network device side method. For another example, a second memory 703 storing a computer program can be executed by the second processor 702 of the second network device 700 to complete the steps of the aforementioned second network device side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0170] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0171] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0172] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A method for determining information, characterized in that: Applied to a first network device, comprising: The fourth information is determined by using the first information, the second information and the third information; the first information indicates the switch state of the long-term evolution LTE wireless working mode of the terminal; the second information indicates the voice support capability of the terminal; the third information indicates the voice support capability of the network; the fourth information indicates whether the network supports the voice of the terminal using the IP multimedia subsystem IMS on the packet switching PS session; wherein, When the first information indicates that the LTE wireless working mode of the terminal is in the 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 the evolved packet system fallback EPS fallback, the fourth information indicates that the network does not support the terminal to use the voice on the PS session using IMS; or, When the first information indicates that the LTE wireless working mode of the terminal is in the on 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 supports the terminal to use IMS voice on the PS session.

2. The method according to claim 1, characterized in that The method further comprises: The first information is determined.

3. The method according to claim 2, characterized in that The determining the first information includes: The first information is determined using a first information element and a second information element of a registration request of the terminal; the first information element represents the mobility management capability of the terminal; and the second information element represents the network capability of the LTE wireless working mode of the terminal.

4. The method according to claim 3, characterized in that When the value of the bit of the LTE wireless working mode in the first information element is set to a first value and the registration request does not carry the second information element, the first information indicates that the LTE wireless working mode of the terminal is in an off state.

5. The method according to claim 1, characterized in that The determining the fourth information by using the first information, the second information and the third information comprises: Determine the first information using a first information element and a second information element of a registration request of the terminal; the first information element represents the mobility management capability of the terminal; the second information element represents the network capability of the LTE wireless working 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 matches the voice support capability of the network, and the second information indirectly indicates the voice support capability of the terminal by indicating whether the current voice support capability of the terminal matches the voice support capability of the network; The fourth information is determined using the second information and the third information.

6. A method for determining information, characterized in that: Applied to the second network device, comprising: Receiving first information sent by a first network device; the first information indicates a switch state of an LTE wireless working mode of the terminal; Determining second information using the first information; the second information indicating whether the voice support capability of the terminal matches the voice support capability of the network; The second information is sent to the first network device; the second information is used for the first network device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session; wherein, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in a closed state, the second information indicates that the current voice support capability of the terminal does not match the voice support capability of the network; or, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in an open state, the second information indicates that the current voice support capability of the terminal matches the voice support capability of the network.

7. An information determination device, characterized in that: include: a first processing unit, configured to determine fourth information using the first information, the second information, and the third information; The first information indicates a switch state of an LTE wireless working mode of the terminal; The second information indicates the voice support capability of the terminal; the third information indicates the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session; wherein, When the first information indicates that the LTE wireless working mode of the terminal is in the 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 the terminal using IMS voice on the PS session; or, When the first information indicates that the LTE wireless working mode of the terminal is in the on 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 supports the terminal to use IMS voice on the PS session.

8. An information determination device, characterized in that: include: A second receiving unit, configured to receive first information sent by the first network device; The first information indicates a switch state of an LTE wireless working mode of the terminal; a second processing unit, configured to determine second information using the first information; The second information indicates whether the voice support capability of the terminal matches 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 device to determine fourth information; the fourth information indicates whether the network supports the terminal to use IMS voice on PS session; wherein, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in a closed state, the second information indicates that the current voice support capability of the terminal does not match the voice support capability of the network; or, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in an open state, the second information indicates that the current voice support capability of the terminal matches the voice support capability of the network.

9. A first network device, characterized in that: include: A first communication interface and a first processor; wherein, The first processor is used 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 the voice support capability of the network; the fourth information indicates whether the network supports the terminal to use IMS voice on the PS session; wherein, When the first information indicates that the LTE wireless working mode of the terminal is in the 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 the terminal using IMS voice on the PS session; or, When the first information indicates that the LTE wireless working mode of the terminal is in the on 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 supports the terminal to use IMS voice on the PS session.

10. A second network device, characterized in that: include: A second communication interface and a second processor; wherein, The second processor is configured to: Receiving first information sent by the first network device 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 indicating whether the voice support capability of the terminal matches the voice support capability of the network; The second information is sent to the first network device through the second communication interface; the second information is used for the first network device to determine the fourth information; the fourth information indicates whether the network supports the terminal to use the IMS voice on the PS session; wherein, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in a closed state, the second information indicates that the current voice support capability of the terminal does not match the voice support capability of the network; or, When the terminal only supports EPS fallback and the first information indicates that the LTE wireless working mode of the terminal is in an open state, the second information indicates that the current voice support capability of the terminal matches the voice support capability of the network.

11. A network device, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, the steps of the method described in any one of claims 1 to 5 are executed.

12. A network device, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, it executes the steps of the method according to claim 6.

13. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 5, or implements the steps of the method according to claim 6.

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