WO2022032646A1 - 信息传输方法、装置及通信设备 - Google Patents

信息传输方法、装置及通信设备 Download PDF

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Publication number
WO2022032646A1
WO2022032646A1 PCT/CN2020/109219 CN2020109219W WO2022032646A1 WO 2022032646 A1 WO2022032646 A1 WO 2022032646A1 CN 2020109219 W CN2020109219 W CN 2020109219W WO 2022032646 A1 WO2022032646 A1 WO 2022032646A1
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WIPO (PCT)
Prior art keywords
pdu session
multimodal
identification information
multimodal service
information
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PCT/CN2020/109219
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English (en)
French (fr)
Inventor
洪伟
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2020/109219 priority Critical patent/WO2022032646A1/zh
Priority to EP20949144.8A priority patent/EP4199416A4/en
Priority to US18/016,861 priority patent/US20230363019A1/en
Priority to CN202080001932.1A priority patent/CN114430930A/zh
Publication of WO2022032646A1 publication Critical patent/WO2022032646A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices

Definitions

  • the present application relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular, relates to information transmission methods, apparatuses, and communication equipment.
  • Smart interaction is an important application scenario for next-generation mobile communications, such as 6G (6th Generation ).
  • Smart interaction is the intelligent interaction between agents (including humans and smart devices). Most of the existing agent interactions are passive and depend on the input of needs, such as the voice and visual interaction between people and smart homes, and the input is unimodal.
  • Multi-modal interaction will become the norm. Multi-modal interaction can be to send input from multiple devices or multiple inputs from one device to a centralized processing device or function, and comprehensively process these multi-modal inputs. , and finally obtain one or more outputs that meet the user's needs. Among them, multiple outputs can also be performed by multiple devices or by one device.
  • the cellular mobile communication network includes an access network and a core network, and does not yet support a multimodal interaction function.
  • embodiments of the present disclosure provide an information transmission method, apparatus, and communication device.
  • an information transmission method wherein, applied to an Access and Mobility Management Function (AMF, Access and Mobility Management Function) of a core network, the method includes:
  • the receiving user equipment (UE, User Equipment) sends a protocol data unit (PDU, Protocol Data Unit) session establishment request for the multimodal service, wherein the PDU session establishment request carries the multimodal service identification information.
  • PDU Protocol Data Unit
  • an information transmission method wherein a session management function (SMF, Session Management Function) applied to a core network, the method includes:
  • a context service request carrying multimodal service identification information sent by the access and mobility management function AMF is received, wherein the context service request is used to request the establishment of a protocol data unit PDU session establishment for the multimodal service.
  • an information transmission method wherein, applied to a user equipment UE of a core network, the method includes:
  • a protocol data unit PDU session establishment request for the multimodal service is sent to the access and mobility management function AMF, wherein the PDU session establishment request carries the multimodal service identification information.
  • an information transmission apparatus wherein an access and mobility management function AMF applied to a core network, the apparatus includes: a first receiving module, wherein,
  • the first receiving module is configured to receive a protocol data unit PDU session establishment request for a multimodal service sent by a user equipment UE, wherein the PDU session establishment request carries multimodal service identification information.
  • an information transmission apparatus wherein a session management function SMF applied to a core network, the apparatus includes: a third receiving module, wherein,
  • the third receiving module is configured to receive a context service request carrying multi-modal service identification information sent by the access and mobility management function AMF, wherein the context service request is used to request the establishment of a multi-modal service request.
  • the protocol data unit PDU session is established.
  • an information transmission apparatus wherein, applied to a user equipment UE of a core network, the apparatus includes: a sixth sending module, wherein:
  • the sixth sending module is configured to send a protocol data unit PDU session establishment request for the multimodal service to the access and mobility management function AMF, wherein the PDU session establishment request carries the multimodal service identification information.
  • a communication device including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor, the processor executing the executable program When the program is executed, the steps of the information transmission method described in the first aspect are executed.
  • a communication device including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor, the processor executing the executable program
  • the steps of the information transmission method described in the second aspect are executed when the program is executed.
  • a communication device including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor, the processor executing the executable program When the program is executed, the steps of the information transmission method described in the third aspect are executed.
  • the access and mobility management function AMF of the core network receives the protocol data unit PDU session establishment request sent by the user equipment UE for multimodal services, wherein the PDU session The establishment request carries the multimodal service identification information.
  • the PDU session establishment request carries the identification information of the multimodal service.
  • the multimodal service identification information can be used to indicate the type of the multimodal service, etc., to provide necessary information for the establishment of a PDU session and to improve the efficiency of information indication.
  • FIG. 1 is a schematic flowchart of an information transmission method according to an exemplary embodiment
  • FIG. 2 is a schematic flowchart of another information transmission method according to an exemplary embodiment
  • FIG. 3 is a schematic flowchart of yet another information transmission method according to an exemplary embodiment
  • FIG. 4 is a schematic flowchart of still another information transmission method according to an exemplary embodiment
  • FIG. 5 is a block diagram of an information transmission apparatus according to an exemplary embodiment
  • FIG. 6 is a block diagram of another information transmission apparatus shown according to an exemplary embodiment
  • FIG. 7 is a block diagram of yet another information transmission apparatus according to an exemplary embodiment
  • Fig. 8 is a block diagram of an apparatus for information transmission according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information without departing from the scope of the embodiments of the present disclosure.
  • the word "if” as used herein can be interpreted as "at the time of" or "when” or "in response to determining.”
  • the executive bodies involved in the embodiments of the present disclosure include, but are not limited to, access network devices that support cellular mobile communications, such as base stations, etc., and core network devices.
  • the application scenario of the embodiment of the present disclosure is that, in the related art, the cellular mobile communication network does not yet support establishing a PDU session suitable for multimodal communication or service.
  • This embodiment provides an information transmission method that can be applied to the access and mobility management function AMF of the core network.
  • the information transmission method may include:
  • Step 101 Receive a protocol data unit PDU session establishment request for a multimodal service sent by a user equipment UE, wherein the PDU session establishment request carries multimodal service identification information.
  • the PDU session of the multi-modal service may use multiple transmission connections to transmit data of one modality respectively.
  • the source or form of different data can be called a modality.
  • Input modalities can be distinguished based on the medium of data, for example: voice, video, text, etc. can be called a modality respectively; modalities can also be distinguished based on different acquisition methods of input data, such as: sensors, radar, infrared and acceleration respectively The data obtained by counting and so on can be respectively called a modal data.
  • Multimodal business users can include: multimodal communication and services, etc.
  • Multimodal data acquired by image sensors, audio sensors, etc. can be sent by user equipment (UE, User Equipment) such as mobile phone terminals and IoT terminals in the cellular mobile communication network.
  • UE User Equipment
  • the UE may send a PDU session establishment request for the multimodal service to the core network, request to establish a PDU session for the multimodal service, and use different transmission connections to transmit data of different modalities.
  • the UE may forward the PDU session establishment request to the core network through the access network (RAN).
  • the PDU session establishment request may be received by the AMF in the core network.
  • AMF is used to manage access rights and handovers of UEs.
  • the multimodal service identification information may be used to identify the service of the requested PDU session, and may also identify the type and name of the multimodal service corresponding to the requested PDU session.
  • the core network may determine the configuration and resources required for the PDU session based on the multimodal service identification information, and then establish a PDU session suitable for the multimodal service.
  • the PDU session establishment request may carry the PDU session identification number, the data network name (DNN, Data Network Name) request type, and the like.
  • the request type may indicate whether the PDU session establishment request is an initial request or an existing session, and the like.
  • the PDU session establishment request carries the identification information of the multimodal service.
  • it implicitly indicates the type of the PDU session requested to be established: the PDU session of the multimodal service.
  • the multimodal service identification information can be used to indicate the type of the multimodal service, etc., to provide necessary information for the establishment of a PDU session and to improve the efficiency of information indication.
  • the receiving UE sends a PDU session establishment request for multimodal service transmission, including:
  • the multimodal service identification information of the PDU session establishment request can be added in the PDU Session Establishment Request signaling and sent by the UE to the AMF.
  • the reserved bits in the PDU Session Establishment Request signaling can be used to carry the multimodal service identification information, so that the use efficiency of the PDU Session Establishment Request signaling can be improved.
  • the method further comprises: in response to receiving the PDU session establishment request, selecting a session management function SMF associated with the multimodal service;
  • the method further includes:
  • Step 102 Send a context service request carrying the multimodal service identification information to the selected SMF.
  • SMF is a functional unit of a service-based architecture.
  • the SMF is mainly responsible for interacting with the separated data plane, creating, updating and deleting PDU sessions, and managing the session environment with the UPF.
  • the AMF may first select the SMF that serves the UE requesting to establish a PDU session, and request the SMF for the service of creating a PDU session context.
  • the AMF may carry the multi-modal service identification information in the context service request, which is used to indicate to the SMF the PDU that is requested to be established. The service corresponding to the session.
  • the request may include: Subscription Permanent Identifier (SUPI, SUbscription Permanent Identifier), PDU Session ID (PDU Session ID), and PDU Session Request, etc., that is, the subscription data learned by the AMF and the session establishment message from the UE to the SMF.
  • SUPI Subscription Permanent Identifier
  • PDU Session ID PDU Session ID
  • PDU Session Request PDU Session Request
  • the SMF can determine whether to establish a PDU session of the multimodal service for the multimodal service identification information.
  • the AMF may further check whether a PDU session supporting the multimodal service can be established for the multimodal UE.
  • a context service request carrying the multimodal service identification information is sent to the SMF.
  • the sending a context service request carrying the multimodal service identification information to the selected SMF includes one of the following:
  • the Nsmf_PDUSession_UpdateSMContext Request signaling carrying the multimodal service identification information is sent to the selected SMF.
  • the AMF If the AMF is not associated with the SMF corresponding to the PDU session ID provided by the UE, for example, when the request type indicates "initial request", the AMF sends the Nsmf_PDUSession_CreateSMContext Request signaling.
  • the AMF If the AMF has been associated with the SMF corresponding to the PDU session ID provided by the UE, for example, when the request type indicates "existing PDU session", the AMF sends the Nsmf_PDUSession_UpdateSMContext Request signaling.
  • the Nsmf_PDUSession_CreateSMContext Request signaling or the reserved bits in the Nsmf_PDUSession_UpdateSMContext Request signaling can be used to carry the multi-modal service identification information. In this way, the use efficiency of the Nsmf_PDUSession_CreateSMContext Request signaling or the Nsmf_PDUSession_UpdateSMContext Request signaling can be improved.
  • the method further includes one of the following:
  • the SMF receives the Nsmf_PDUSession_CreateSMContext Request signaling or the Nsmf_PDUSession_UpdateSMContext Request signaling, and the SMF can process the PDU session establishment request, the SMF creates the PDU session context and responds to the AMF by sending a context service response, indicating that the SMF agrees to establish the corresponding multimodal service identification information. PDU session, otherwise, the SMF indicates through a reject instruction that the SMF does not agree to establish the PDU session corresponding to the multimodal service identification information.
  • determining that the selected SMF agrees to establish the PDU session in response to receiving the context service response that carries the multimodal service identification information sent by the selected SMF includes one of the following: one:
  • the SMF may respond with the Nsmf_PDUSession_CreateSMContext Response signaling carrying the multimodal service identification information.
  • the SMF may respond with an Nsmf_PDUSession_UpdateSMContext Response that carries the multimodal service identification information.
  • determining that the selected SMF does not agree to establish the PDU session in response to receiving the PDU session rejection instruction sent by the selected SMF and carrying the multimodal service identification information including:
  • the SMF can use the PDU Session Reject signaling carrying the multi-modal service identification information. response.
  • the method further includes:
  • the session management information of the PDU session sent by the selected SMF in response to the successful establishment of the PDU session is received.
  • SMF will select an appropriate user plane function (UPF, User Plane Function) to establish a PDU session corresponding to the multimodal service identification information.
  • UPF User Plane Function
  • the UPF is a user plane network element. Based on the forwarding rules issued by the SMF, the UPF responds to forwarding processing and acts as a gateway between the user plane and the data network (DN, Data Network).
  • DN Data Network
  • the SMF After the SMF completes the establishment of the PDU session, it can forward the session management (SM, Eession Management) related information of the PDU session to the UE and the base station through the AMF.
  • the session management information may include but is not limited to: PDU session identification number, N2 session management information (N2 SM information), and N1 session management container (N1 SM container), etc.
  • the SMF selected for receiving sends the session management information of the PDU session, including:
  • the reserved bits and the like in the Namf_Communication_N1N2MessageTransfer signaling can be used to carry the session management information of the PDU session corresponding to the multimodal service identification information. In this way, the usage efficiency of the Namf_Communication_N1N2MessageTransfer signaling can be improved.
  • the method further includes:
  • the AMF After receiving the session management information of the PDU session corresponding to the multimodal service identification information, the AMF can send the session management information to the access network.
  • the access network can obtain N2 session management information for the PDU session.
  • the access network may send session management information to the UE.
  • the sending the session management information of the PDU session to the access network in response to receiving the session management information of the PDU session includes:
  • the AMF can use the reserved bits in the N2 PDU Session Request signaling to carry the session management information of the PDU session corresponding to the multi-modal service identification information. In this way, the use efficiency of the N2 PDU Session Request signaling can be improved.
  • the session management information of the PDU session is used to be carried by the access network in RRC Connection Reconfiguration signaling and sent to the UE.
  • the access network After receiving the session management information of the PDU session corresponding to the multimodal service identification information, the access network can carry the session management information in the RRC Connection Reconfiguration signaling and send it to the UE.
  • the UE parses the session management information from the RRC Connection Reconfiguration signaling, and then transmits multimodal services.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • Different types of multimodal services have different requirements for the number of required transmission connections and PDU sessions. Therefore, different types of multimodal services can be identified by using different multimodal service identification information.
  • the PDU sessions established based on the identification information of different multimodal services can meet the requirements of different multimodal services.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • the name corresponding to the type of the multimodal service may be used to identify the type of the multimodal service.
  • Different pre-defined identifiers can also be used to indicate different types of multimodal services.
  • a set of different multimodal service types can also be defined by listing different enumeration values in a predefined manner, and different multimodal service types are indicated by enumeration value classes corresponding to the types of multimodal services.
  • the types of different multimodal services may be indicated by different characters and/or character strings.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service is configured or pre-agreed by the core network.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service may be negotiated in advance through a communication protocol or the like, or may also be configured by the core network.
  • the correspondence relationship may be broadcast by the base station through system messages or the like.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service may be determined by receiving a system message or the like.
  • the identification information of the multimodal service may be determined based on the corresponding relationship.
  • This embodiment provides an information transmission method that can be applied to the session management function SMF of the core network.
  • the information transmission method may include:
  • Step 301 Receive a context service request carrying multimodal service identification information sent by the access and mobility management function AMF, wherein the context service request is used to request the establishment of a protocol data unit PDU session establishment for the multimodal service .
  • the PDU session of the multi-modal service may use multiple transmission connections to transmit data of one modality respectively.
  • the source or form of different data can be called a modality.
  • Input modalities can be distinguished based on the medium of data, for example: voice, video, text, etc. can be called a modality respectively; modalities can also be distinguished based on different acquisition methods of input data, such as: sensors, radar, infrared and acceleration respectively The data obtained by counting and so on can be respectively called a modal data.
  • Multimodal business users can include: multimodal communication and services, etc.
  • Multimodal data acquired by image sensors, audio sensors, etc. can be sent by user equipment (UE, User Equipment) such as mobile phone terminals and IoT terminals in the cellular mobile communication network.
  • UE User Equipment
  • the UE may send a PDU session establishment request for the multimodal service to the core network, request to establish a PDU session for the multimodal service, and use different transmission connections to transmit data of different modalities.
  • the UE may forward the PDU session establishment request to the core network through the access network (RAN).
  • the PDU session establishment request may be received by the AMF in the core network.
  • AMF is used to manage access rights and handovers of UEs.
  • the multimodal service identification information may be used to identify the service of the requested PDU session, and may also identify the type and name of the multimodal service corresponding to the requested PDU session.
  • the core network may determine the configuration and resources required for the PDU session based on the multimodal service identification information, and then establish a PDU session suitable for the multimodal service.
  • the PDU session establishment request may carry the PDU session identification number, the data network name (DNN, Data Network Name) request type, and the like.
  • the request type may indicate whether the PDU session establishment request is an initial request or an existing session, and the like.
  • the PDU session establishment request carries the identification information of the multimodal service.
  • it implicitly indicates the type of the PDU session requested to be established: the PDU session of the multimodal service.
  • the multimodal service identification information can be used to indicate the type of the multimodal service, etc., to provide necessary information for the establishment of a PDU session and to improve the efficiency of information indication.
  • SMF is a functional unit of a service-based architecture.
  • the SMF is mainly responsible for interacting with the separated data plane, creating, updating and deleting PDU sessions, and managing the session environment with the UPF.
  • the AMF may first select the SMF that serves the UE requesting to establish a PDU session, and request the SMF for the service of creating a PDU session context.
  • the AMF may carry the multi-modal service identification information in the context service request, which is used to indicate to the SMF the PDU that is requested to be established. The service corresponding to the session.
  • the request may include: Subscription Permanent Identifier (SUPI, SUbscription Permanent Identifier), PDU Session ID (PDU Session ID), and PDU Session Request, etc., that is, the subscription data learned by the AMF and the session establishment message from the UE to the SMF.
  • SUPI Subscription Permanent Identifier
  • PDU Session ID PDU Session ID
  • PDU Session Request PDU Session Request
  • the SMF can determine whether to establish a PDU session of the multimodal service for the multimodal service identification information.
  • the AMF may further check whether a PDU session supporting the multimodal service can be established for the multimodal UE.
  • a context service request carrying the multimodal service identification information is sent to the SMF.
  • the receiving the context service request carrying the multimodal service identification information sent by the AMF includes one of the following:
  • the AMF If the AMF is not associated with the SMF corresponding to the PDU session ID provided by the UE, for example, when the request type indicates "initial request", the AMF sends the Nsmf_PDUSession_CreateSMContext Request signaling.
  • the AMF If the AMF has been associated with the SMF corresponding to the PDU session ID provided by the UE, for example, when the request type indicates "existing PDU session", the AMF sends the Nsmf_PDUSession_UpdateSMContext Request signaling.
  • the Nsmf_PDUSession_CreateSMContext Request signaling or the reserved bits in the Nsmf_PDUSession_UpdateSMContext Request signaling can be used to carry the multi-modal service identification information. In this way, the use efficiency of the Nsmf_PDUSession_CreateSMContext Request signaling or the Nsmf_PDUSession_UpdateSMContext Request signaling can be improved.
  • the method further comprises;
  • a PDU session rejection instruction carrying the multimodal service identification information is sent to the AMF.
  • the SMF receives the Nsmf_PDUSession_CreateSMContext Request signaling or the Nsmf_PDUSession_UpdateSMContext Request signaling, and the SMF can process the PDU session establishment request, the SMF creates the PDU session context and responds to the AMF by sending a context service response, indicating that the SMF agrees to establish the corresponding multimodal service identification information. PDU session, otherwise, the SMF indicates through a reject instruction that the SMF does not agree to establish the PDU session corresponding to the multimodal service identification information.
  • the sending the context service response carrying the multimodal service identification information to the AMF includes one of the following:
  • the SMF may respond with the Nsmf_PDUSession_CreateSMContext Response signaling carrying the multimodal service identification information.
  • the SMF may respond with an Nsmf_PDUSession_UpdateSMContext Response that carries the multimodal service identification information.
  • the sending a PDU session rejection instruction carrying the multimodal service identification information to the AMF includes:
  • the SMF can use the PDU Session Reject signaling carrying the multi-modal service identification information. response.
  • the method further includes:
  • the user plane function UPF associated with the multimodal service is selected.
  • SMF will select an appropriate user plane function (UPF, User Plane Function) to establish a PDU session corresponding to the multimodal service identification information.
  • UPF User Plane Function
  • the UPF is a user plane network element. Based on the forwarding rules issued by the SMF, the UPF responds to forwarding processing and acts as a gateway between the user plane and the data network (DN, Data Network).
  • DN Data Network
  • the method further includes:
  • session management information for the PDU session is sent to the AMF.
  • the SMF After the SMF completes the establishment of the PDU session, it can forward the session management (SM, Eession Management) related information of the PDU session to the UE and the base station through the AMF.
  • the session management information may include but is not limited to: PDU session identification number, N2 session management information (N2 SM information), and N1 session management container (N1 SM container), etc.
  • the sending the session management information of the PDU session to the AMF includes:
  • the reserved bits and the like in the Namf_Communication_N1N2MessageTransfer signaling can be used to carry the session management information of the PDU session corresponding to the multimodal service identification information. In this way, the usage efficiency of the Namf_Communication_N1N2MessageTransfer signaling can be improved.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • Different types of multimodal services have different requirements for the number of required transport connections and PDU sessions. Therefore, different types of multimodal services can be identified by using different multimodal service identification information.
  • the PDU sessions established based on the identification information of different multimodal services can meet the requirements of different multimodal services.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • the name corresponding to the type of the multimodal service may be used to identify the type of the multimodal service.
  • Different pre-defined identifiers can also be used to indicate different types of multimodal services.
  • a set of different multimodal service types can also be defined by listing different enumeration values in a predefined manner, and different multimodal service types are indicated by enumeration value classes corresponding to the types of multimodal services.
  • the types of different multimodal services may be indicated by different characters and/or character strings.
  • This embodiment provides an information transmission method that can be applied to a user equipment UE of a core network. As shown in FIG. 4 , the information transmission method may include:
  • Step 401 Send a protocol data unit PDU session establishment request for the multimodal service to the access and mobility management function AMF, wherein the PDU session establishment request carries the multimodal service identification information.
  • the PDU session of the multi-modal service may use multiple transmission connections to transmit data of one modality respectively.
  • the source or form of different data can be called a modality.
  • Input modalities can be distinguished based on the medium of data, for example: voice, video, text, etc. can be called a modality respectively; modalities can also be distinguished based on different acquisition methods of input data, such as: sensors, radar, infrared and acceleration respectively The data obtained by counting and so on can be respectively called a modal data.
  • Multimodal business users can include: multimodal communication and services, etc.
  • Multimodal data acquired by image sensors, audio sensors, etc. can be sent by user equipment (UE, User Equipment) such as mobile phone terminals and IoT terminals in the cellular mobile communication network.
  • UE User Equipment
  • the UE may send a PDU session establishment request for the multimodal service to the core network, request to establish a PDU session for the multimodal service, and use different transmission connections to transmit data of different modalities.
  • the UE may forward the PDU session establishment request to the core network through the access network (RAN).
  • the PDU session establishment request may be received by the AMF in the core network.
  • AMF is used to manage access rights and handovers of UEs.
  • the multimodal service identification information may be used to identify the service of the requested PDU session, and may also identify the type and name of the multimodal service corresponding to the requested PDU session.
  • the core network may determine the configuration and resources required for the PDU session based on the multimodal service identification information, and then establish a PDU session suitable for the multimodal service.
  • the PDU session establishment request may carry the PDU session identification number, the data network name (DNN, Data Network Name) request type, and the like.
  • the request type may indicate whether the PDU session establishment request is an initial request or an existing session, and the like.
  • the PDU session establishment request carries the identification information of the multimodal service.
  • it implicitly indicates the type of the PDU session requested to be established: the PDU session of the multimodal service.
  • the multimodal service identification information can be used to indicate the type of the multimodal service, etc., to provide necessary information for the establishment of a PDU session and to improve the efficiency of information indication.
  • the sending a PDU session establishment request for the multimodal service to the AMF includes:
  • the multimodal service identification information of the PDU session establishment request can be added in the PDU Session Establishment Request signaling and sent by the UE to the AMF.
  • the reserved bits in the PDU Session Establishment Request signaling can be used to carry the multi-modal service identification information, so that the use efficiency of the PDU Session Establishment Request signaling can be improved.
  • the method further includes:
  • the session management information of the PDU session sent by the access network is received, and the PDU session is performed based on the session management information.
  • the AMF After receiving the session management information of the PDU session corresponding to the multimodal service identification information, the AMF can send the session management information to the access network.
  • the access network can obtain N2 session management information for the PDU session.
  • the access network may send session management information to the UE.
  • the receiving session management information of the PDU session sent by the access network includes:
  • the access network After receiving the session management information of the PDU session corresponding to the multimodal service identification information, the access network can carry the session management information in the RRC Connection Reconfiguration signaling and send it to the UE.
  • the UE parses the session management information from the RRC Connection Reconfiguration signaling, and then transmits multimodal services.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • Different types of multimodal services have different requirements for the number of required transmission connections and PDU sessions. Therefore, different types of multimodal services can be identified by using different multimodal service identification information.
  • the PDU sessions established based on the identification information of different multimodal services can meet the requirements of different multimodal services.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • the name corresponding to the type of the multimodal service may be used to identify the type of the multimodal service.
  • Different pre-defined identifiers can also be used to indicate different types of multimodal services.
  • a set of different multimodal service types can also be defined by listing different enumeration values in a predefined manner, and different multimodal service types are indicated by enumeration value classes corresponding to the types of multimodal services.
  • the types of different multimodal services may be indicated by different characters and/or character strings.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service is configured or pre-agreed by the core network.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service may be negotiated in advance through a communication protocol or the like, or may also be configured by the core network.
  • the method further includes:
  • the indication information of the correspondence between the type of the multimodal service broadcasted by the base station and the identification information of the multimodal service is received.
  • the correspondence relationship may be broadcast by the base station through system messages or the like.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service may be determined by receiving a system message or the like.
  • the identification information of the multimodal service may be determined based on the corresponding relationship.
  • This example presents a method for multimodal communication establishment.
  • the multi-modal UE When establishing a PDU session, the multi-modal UE sends the multi-modal communication or service information corresponding to the current PDU session establishment request to the core network.
  • the multimodal communication or service information corresponding to the current PDU session establishment request can be added in the PDU Session Establishment Request signaling and sent by the UE to the AMF.
  • the information may be identified by a specific multimodal communication or service name.
  • the information can be represented by different integer ID values or different enumeration values or characters/strings to represent different multimodal communication/service types.
  • the correspondence can be broadcast by the base station.
  • b) can also be configured by the core network.
  • the AMF After receiving the PDU establishment request with the corresponding multi-modal communication or service information, the AMF will select an appropriate SMF for the multi-modal terminal according to the information.
  • the AMF can also check whether a PDU session supporting the multimodal communication or service can be established for the multimodal terminal.
  • the AMF After selecting the SMF, the AMF sends the Nsmf_PDUSession_CreateSMContext Request signaling or the Nsmf_PDUSession_UpdateSMContext Request signaling carrying the corresponding multimodal communication or service information to the SMF.
  • the SMF After receiving the Nsmf_PDUSession_CreateSMContext Request signaling or Nsmf_PDUSession_UpdateSMContext Request signaling that carries the corresponding multi-modal communication or service information sent by the AMF, the SMF decides whether to establish a PDU session for the multi-modal communication or service.
  • the SMF will select the appropriate UPF to establish the PDU session.
  • the SMF sends to the AMF the Namf_Communication_N1N2MessageTransfer signaling carrying the PDU session information established for the multimodal communication or service.
  • the AMF After receiving the signaling, the AMF sends the N2 PDU Session Request signaling carrying the PDU session information established for the multimodal communication or service to the RAN.
  • FIG. 5 is a schematic structural diagram of the composition of the information transmission apparatus 100 provided by the embodiment of the present invention; as shown in FIG. 5 , The apparatus 100 includes: a first receiving module 110, wherein:
  • the first receiving module 110 is configured to receive a protocol data unit PDU session establishment request sent by a user equipment UE for a multimodal service, wherein the PDU session establishment request carries multimodal service identification information.
  • the first receiving module 110 includes:
  • the first receiving sub-module 111 is configured to receive the PDU Session Establishment Request signaling that is sent by the UE and carries the multimodal service identification information.
  • the apparatus 100 further includes:
  • a first selection module 120 configured to select a session management function SMF associated with the multimodal service in response to receiving the PDU session establishment request;
  • the apparatus 100 also includes:
  • the first sending module 130 is configured to send a context service request carrying the multimodal service identification information to the selected SMF.
  • the first sending module 130 includes one of the following:
  • the first sending submodule 131 is configured to send the Nsmf_PDUSession_CreateSMContext Request signaling carrying the multimodal service identification information to the selected SMF;
  • the second sending submodule 132 is configured to send the Nsmf_PDUSession_UpdateSMContext Request signaling carrying the multimodal service identification information to the selected SMF.
  • the apparatus 100 further includes one of the following:
  • the first determining module 140 is configured to, in response to receiving the context service response carrying the multimodal service identifier information sent by the selected SMF, determine that the selected SMF agrees to establish the PDU session;
  • the second determining module 150 is configured to, in response to receiving the PDU session rejection instruction carrying the multimodal service identifier information sent by the selected SMF, determine that the selected SMF does not agree to establish the PDU session.
  • the first determining module 140 includes one of the following:
  • the first determination sub-module 141 is configured to, in response to receiving the Nsmf_PDUSession_CreateSMContext Response signaling sent by the selected SMF and carrying the multimodal service identification information, determine that the selected SMF agrees to establish the PDU session;
  • the second determining submodule 142 is configured to, in response to receiving the Nsmf_PDUSession_UpdateSMContext Response signaling that is sent by the selected SMF and carries the multimodal service identification information, to determine that the selected SMF agrees to establish the PDU session.
  • the second determining module 150 includes:
  • the third determining sub-module 151 is configured to, in response to receiving the PDU Session Reject signaling carrying the multimodal service identification information sent by the selected SMF, determine that the selected SMF does not agree to establish the PDU session .
  • the apparatus 100 further includes:
  • the second receiving module 160 is configured to receive the session management information of the PDU session sent by the selected SMF in response to the successful establishment of the PDU session.
  • the second receiving module 160 includes:
  • the second receiving sub-module 161 is configured to receive the selected Namf_Communication_N1N2MessageTransfer signaling that is sent by the SMF and carries the session management information of the PDU session.
  • the apparatus 100 further includes:
  • the second sending module 170 is configured to, in response to receiving the session management information of the PDU session, send the session management information of the PDU session to the access network; wherein the session management information of the PDU session is used for all sent by the access network to the UE.
  • the second sending module 170 includes:
  • the third sending sub-module 171 is configured to send the N2 PDU Session Request signaling carrying the session management information of the PDU session to the access network.
  • the session management information of the PDU session is used to be carried by the access network in RRC Connection Reconfiguration signaling and sent to the UE.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service is configured or pre-agreed by the core network.
  • FIG. 6 is a schematic structural diagram of the composition of the information transmission apparatus 200 provided by the embodiment of the present invention; as shown in FIG. 6 , the apparatus 200 includes : the third receiving module 210, wherein,
  • the third receiving module 210 is configured to receive a context service request carrying multi-modal service identification information sent by the access and mobility management function AMF, wherein the context service request is used to request the establishment of a multi-modal service.
  • the protocol data unit PDU session is established.
  • the third receiving module 210 includes one of the following:
  • the third receiving sub-module 211 is configured to receive the Nsmf_PDUSession_CreateSMContext Request signaling carrying the multimodal service identification information;
  • the fourth receiving sub-module 212 is configured to receive the Nsmf_PDUSession_UpdateSMContext Request signaling carrying the multimodal service identification information.
  • the apparatus 200 further includes;
  • the third sending module 220 is configured to, in response to agreeing to establish the PDU session, send a context service response carrying the multimodal service identification information to the AMF;
  • the fourth sending module 230 is configured to send a PDU session rejection instruction carrying the multimodal service identification information to the AMF in response to not agreeing to establish the PDU session.
  • the third sending module 220 includes one of the following:
  • the fourth sending submodule 221 is configured to send the Nsmf_PDUSession_CreateSMContext Response signaling carrying the multimodal service identification information to the AMF;
  • the fifth sending sub-module 222 is configured to send the Nsmf_PDUSession_UpdateSMContext Response signaling carrying the multimodal service identification information to the AMF.
  • the fourth sending module 230 includes:
  • the sixth sending sub-module 231 is configured to send the PDU Session Reject signaling carrying the identification information of the multimodal service to the AMF.
  • the apparatus 200 further includes:
  • the second selection module 240 is configured to select the user plane function UPF associated with the multimodal service in response to agreeing to establish the PDU session.
  • the apparatus 200 further includes:
  • the fifth sending module 250 is configured to send session management information of the PDU session to the AMF in response to the successful establishment of the PDU session.
  • the fifth sending module 250 includes:
  • the seventh sending sub-module 251 is configured to send the Namf_Communication_N1N2MessageTransfer signaling carrying the session management information of the PDU session to the AMF.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • FIG. 7 is a schematic structural diagram of the composition of an information transmission apparatus 300 provided by an embodiment of the present invention; as shown in FIG. 7 , the apparatus 300 includes: a sixth sending Module 310, wherein,
  • the sixth sending module 310 is configured to send a protocol data unit PDU session establishment request for the multimodal service to the access and mobility management function AMF, wherein the PDU session establishment request carries the multimodal service identification information.
  • the sixth sending module 310 includes:
  • the eighth sending sub-module 311 is configured to send the PDU Session Establishment Request signaling carrying the multimodal service identification information.
  • the apparatus 300 further includes:
  • a fourth receiving module 320 configured to receive the session management information of the PDU session sent by the access network
  • the session module 330 is configured to conduct the PDU session based on the session management information.
  • the fourth receiving module 320 includes:
  • the fifth receiving sub-module 321 is configured to receive the RRC Connection Reconfiguration signaling that is sent by the access network and carries the session management information of the PDU session.
  • the identification information of the multimodal services corresponding to different types of the multimodal services is different.
  • the multimodal service identification information includes at least one of the following:
  • Character information or character string information corresponding to the type of the multimodal service are characteristics or character string information corresponding to the type of the multimodal service.
  • the corresponding relationship between the type of the multimodal service and the identification information of the multimodal service is configured or pre-agreed by the core network.
  • the apparatus 300 further includes:
  • the fifth receiving module 340 is configured to receive the indication information of the correspondence between the type of the multimodal service and the identification information of the multimodal service broadcast by the base station.
  • CPU Central Processing Unit
  • GPU graphics processing unit
  • BP baseband processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • controller a controller, a microcontroller (MCU, Micro Controller Unit), a microprocessor (Microprocessor), or other electronic components, and can also be implemented in combination with one or more radio frequency (RF, radio frequency) antennas, for performing the aforementioned method.
  • MCU Microcontroller
  • Microprocessor Microprocessor
  • RF radio frequency
  • FIG. 8 is a block diagram of an apparatus 3000 for information transmission according to an exemplary embodiment.
  • apparatus 3000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.
  • a processing component 3002 a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.
  • the processing component 3002 generally controls the overall operation of the apparatus 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 can include one or more processors 3020 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components.
  • processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.
  • Memory 3004 is configured to store various types of data to support operation at device 3000 . Examples of such data include instructions for any application or method operating on the device 3000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Communication component 3016 is configured to facilitate wired or wireless communication between apparatus 3000 and other devices.
  • the apparatus 3000 may access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which are executable by the processor 3020 of the apparatus 3000 to perform the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

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Abstract

本公开实施例是关于信息传输方法、装置及通信设备。该方法包括：核心网的接入和移动管理功能(AMF)接收用户设备(UE)发送针对多模态业务的协议数据单元(PDU)会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。

Description

信息传输方法、装置及通信设备 技术领域
本申请涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及信息传输方法、装置及通信设备。
背景技术
智慧交互是下一代移动通信，如第六代(6G，6 th Generation)的一个重要的应用场景。智慧交互是智能体(包括人与智能设备)之间产生的智能交互。现有的智能体交互大多是被动的，依赖于需求的输入，比如人与智慧家居的语音和视觉交互，并且输入都是单模态的。在6G时代，多模态交互将会成为一种常态，多模态交互可以是将多个设备的输入或一个设备的多种输入，发送到集中处理设备或者功能，综合处理这些多模态输入，最终来获得满足用户需求的一种或者多种输出。其中，多种输出也可以通过多个设备进行多输出或者一个设备进行多输出。
目前，蜂窝移动通信网络包括接入网和核心网，还不支持多模态交互功能。
发明内容
有鉴于此，本公开实施例提供了一种信息传输方法、装置及通信设备。
根据本公开实施例的第一方面，提供一种信息传输方法，其中，应用于核心网的接入和移动管理功能(AMF，Access and Mobility Management Function)，所述方法包括：
接收用户设备(UE，User Equipment)发送针对多模态业务的协议数据单元(PDU，Protocol Data Unit)会话建立请求，其中，所述PDU会话建 立请求携带有多模态业务标识信息。
根据本公开实施例的第二方面，提供一种信息传输方法，其中，应用于核心网的会话管理功能(SMF，Session Management Function)，所述方法包括：
接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
根据本公开实施例的第三方面，提供一种信息传输方法，其中，应用于核心网的用户设备UE，所述方法包括：
向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
根据本公开实施例的第四方面，提供一种信息传输装置，其中，应用于核心网的接入和移动管理功能AMF，所述装置包括：第一接收模块，其中，
所述第一接收模块，配置为接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
根据本公开实施例的第五方面，提供一种信息传输装置，其中，应用于核心网的会话管理功能SMF，所述装置包括：第三接收模块，其中，
所述第三接收模块，配置为接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
根据本公开实施例的第六方面，提供一种信息传输装置，其中，应用于核心网的用户设备UE，所述装置包括：第六发送模块，其中，
所述第六发送模块，配置为向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
根据本公开实施例的第七方面，提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如第一方面所述信息传输方法的步骤。
根据本公开实施例的第八方面，提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如第二方面所述信息传输方法的步骤。
根据本公开实施例的第九方面，提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如第三方面所述信息传输方法的步骤。
本公开实施例提供的信息传输方法、装置及通信设备，核心网的接入和移动管理功能AMF接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。如此，PDU会话建立请求中携带多模态业务标识信息，一方面，隐含指示请求建立的PDU会话的类型：多模态业务的PDU会话。另一方面，多模态业务标识信息可以用于指示多模态业务的类型等，为PDU会话的建立提供必要的信息，提高信息指示效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的一种信息传输方法的流程示意图；
图2是根据一示例性实施例示出的另一种信息传输方法的流程示意图；
图3是根据一示例性实施例示出的又一种信息传输方法的流程示意图；
图4是根据一示例性实施例示出的再一种信息传输方法的流程示意图；
图5是根据一示例性实施例示出的一种信息传输装置的框图；
图6是根据一示例性实施例示出的另一种信息传输装置的框图；
图7是根据一示例性实施例示出的又一种信息传输装置的框图；
图8是根据一示例性实施例示出的一种用于信息传输的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一 信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
本公开实施例涉及的执行主体包括但不限于：支持蜂窝移动通信的接入网设备如基站等，以及核心网设备等。
本公开实施例的应用场景为，相关技术中，蜂窝移动通信网络还不支持建立适用于多模态通信或服务的PDU会话。
本实施例提供一种信息传输方法可以应用于核心网的接入和移动管理功能AMF，如图1所示，信息传输方法可以包括：
步骤101：接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
这里，多模态业务的PDU会话可以采用多个传输连接分别传输一个模态的数据。不同数据的来源或者形式，可以称为一种模态。可以基于数据的媒介区分输入模态，例如：语音、视频、文字等分别可以称为一种模态；也可以基于输入数据不同获取方式区分模态，例如：分别通过传感器，雷达、红外和加速度计等得到的数据可以分别称为一种模态的数据。多模态业户可以包括：多模态通信和服务等
可以由蜂窝移动通信网络中的手机终端、物联网终端等用户设备(UE，User Equipment)发送通过图像传感器、音频传感器等获取的多模态数据。
UE可以向核心网发送针对多模态业务的PDU会话建立请求，请求建立多模态业务的PDU会话，采用不同的传输连接传输不同模态的数据。
UE可以通过接入网(RAN)向核心网转发PDU会话建立请求。这里，可以由核心网中的AMF接收PDU会话建立请求。AMF用于管理UE的接入权限和切换等。
多模态业务标识信息可以用于标识请求的PDU会话的业务，也可以标 识请求的PDU会话对应的多模态业务的类型、名称等。核心网可以基于多模态业务标识信息确定PDU会话所需的配置和资源等，进而建立适用于多模态业务的PDU会话。PDU会话建立请求中可以携带有PDU会话识别号、数据网络名(DNN，Data Network Name)请求类型等。其中，请求类型可以指示PDU会话建立请求为初次请求还是已有会话等。
如此，PDU会话建立请求中携带多模态业务标识信息，一方面，隐含指示请求建立的PDU会话的类型：多模态业务的PDU会话。另一方面，多模态业务标识信息可以用于指示多模态业务的类型等，为PDU会话的建立提供必要的信息，提高信息指示效率。
在一个实施例中，所述接收UE发送针对多模态业务传输的PDU会话建立请求，包括：
接收UE发送的携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
PDU会话建立请求的多模态业务标识信息可以添加在PDU Session Establishment Request信令中由UE发给AMF。
可以采用PDU Session Establishment Request信令中的预留比特位等携带多模态业务标识信息，如此，可以提高PDU Session Establishment Request信令的使用效率。
在一个实施例中，所述方法还包括：响应于接收到所述PDU会话建立请求，选择与所述多模态业务关联的会话管理功能SMF；
如图2所示，所述方法还包括：
步骤102：向选择的所述SMF发送携带有所述多模态业务标识信息的上下文服务请求。
SMF是基于服务架构的一个功能单元。SMF主要负责与分离的数据面交互，创建、更新和删除PDU会话，并管理与UPF的会话环境。
AMF可以首选选择为请求建立PDU会话的UE服务的SMF，并向SMF请求创建PDU会话上下文的服务，AMF可以在上下文服务请求中携带多模态业务标识信息，用于向SMF指示请求建立的PDU会话所对应的业务。
发送上下文服务请求的主要目的有三个：建立AMF与SMF关于UE会话的联系；传输有UE的签约数据、触发整个会话建立流程。请求中可以包含：签约永久标识(SUPI，SUbscription Permanent Identifier)、PDU会话识别号(PDU Session ID)、以及PDU会话请求等，即：AMF获知的签约数据以及UE给SMF的会话建立消息。
SMF接收到上下文服务请求后，可以确定是否针对该多模态业务标识信息建立多模态业务的PDU会话。
在一个实施例中，AMF在收到携带有多模态业务标识信息的PDU会话建立请求后，还可以检查是否可以为该多模态UE建立支持该多模态业务的PDU会话。响应于可以为该多模态UE建立支持该多模态业务的PDU会话，向SMF发送携带有所述多模态业务标识信息的上下文服务请求。
在一个实施例中，所述向选择的所述SMF发送携带有所述多模态业务标识信息的上下文服务请求，包括以下之一：
所述向选择的所述SMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
所述向选择的所述SMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
如果AMF没有与UE提供的PDU会话识别号对应的SMF关联，例如，当请求类型指示“初始请求”时，则AMF发Nsmf_PDUSession_CreateSMContext Request信令。
如果AMF已经与UE提供的PDU会话识别号对应的SMF关联，例如，当请求类型指示“现有PDU会话”时，AMF发 Nsmf_PDUSession_UpdateSMContext Request信令。
可以采用Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令中的预留比特位等携带多模态业务标识信息，如此，可以提高Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令的使用效率。
在一个实施例中，所述方法还包括以下之一：
响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的上下文服务响应，确定选择的所述SMF同意建立所述PDU会话；
响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU会话拒绝指令，确定选择的所述SMF不同意建立所述PDU会话。
如果SMF接收到Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令，并且SMF能够处理PDU会话建立请求，则SMF创建PDU会话上下文并通过发送上下文服务响应响应AMF，指示SMF同意建立多模态业务标识信息对应的PDU会话，否则，SMF通过拒绝指令指示SMF不同意建立多模态业务标识信息对应的PDU会话。
在一个实施例中，所述响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的上下文服务响应，确定选择的所述SMF同意建立所述PDU会话，包括以下之一：
响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令，确定选择的所述SMF同意建立所述PDU会话；
响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令，确定选择的所述 SMF同意建立所述PDU会话。
针对AMF发送的Nsmf_PDUSession_CreateSMContext Request信令，如果SMF同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模态业务标识信息Nsmf_PDUSession_CreateSMContext Response信令进行响应。
针对AMF发送的Nsmf_PDUSession_UpdateSMContext Request信令，如果SMF同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模态业务标识信息Nsmf_PDUSession_UpdateSMContext Response进行响应。
在一个实施例中，所述响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU会话拒绝指令，确定选择的所述SMF不同意建立所述PDU会话，包括：
响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU Session Reject信令，确定选择的所述SMF不同意建立所述PDU会话。
针对AMF发送的Nsmf_PDUSession_CreateSMContext Request信令、或Nsmf_PDUSession_UpdateSMContext Request信令，如果SMF不同同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模态业务标识信息的PDU Session Reject信令进行响应。
在一个实施例中，所述方法还包括：
接收选择的所述SMF响应于成功建立所述PDU会话，发送的所述PDU会话的会话管理信息。
如果同意建立多模态业务标识信息对应的PDU会话，SMF会选择合适的用户面功能(UPF，User Plane Function)来建立PDU会话
UPF为用户面网元，基于SMF下发的转发规则，UPF作出响应的转发 处理，同时作为用户平面与数据网络(DN，Data Network)之间的网关。
SMF完成PDU会话建立后，可以通过AMF向UE和基站转发PDU会话的会话管理(SM，Eession Management)相关信息。这里，会话管理信息可以包括但不限于：PDU会话标识号、N2会话管理信息(N2 SM information)以及N1会话管理容器(N1 SM container)等。
在一个实施例中，所述接收选择的所述SMF响应于所述PDU会话建立，发送的所述PDU会话的会话管理信息，包括：
所述接收选择的所述SMF发送的携带有所述PDU会话的会话管理信息的Namf_Communication_N1N2MessageTransfer信令。
可以采用Namf_Communication_N1N2MessageTransfer信令中的预留比特位等携带多模态业务标识信息对应PDU会话的会话管理信息，如此，可以提高Namf_Communication_N1N2MessageTransfer信令的使用效率。
在一个实施例中，所述方法还包括：
响应于接收到所述PDU会话的会话管理信息，向接入网发送所述PDU会话的会话管理信息；其中，所述PDU会话的会话管理信息，用于供所述接入网发送给所述UE。
AMF接收到多模态业务标识信息对应PDU会话的会话管理信息后，可以将该会话管理信息发送给接入网。接入网可以获取N2会话管理信息，用于该PDU会话。接入网可以将会话管理信息发送给UE。
在一个实施例中，所述响应于接收到所述PDU会话的会话管理信息，向接入网发送所述PDU会话的会话管理信息，包括：
向所述接入网发送携带有所述PDU会话的会话管理信息的N2 PDU Session Request信令。
AMF可以采用N2 PDU Session Request信令中的预留比特位等携带多模态业务标识信息对应PDU会话的会话管理信息，如此，可以提高N2 PDU  Session Request信令的使用效率。
在一个实施例中，所述PDU会话的会话管理信息，用于供所述接入网携带于RRC Connection Reconfiguration信令中发送给所述UE。
接入网接收到多模态业务标识信息对应PDU会话的会话管理信息后，可以将该会话管理信息携带于RRC Connection Reconfiguration信令中，并发送给UE。UE从RRC Connection Reconfiguration信令中解析出会话管理信息，进而进行多模态业务的传输。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
不同类型的多模态业务对于需求的传输连接的数量以及PDU会话的要求不同。因此，可以采用不同的多模态业务标识信息标识不同的多模态业务的类型。
如此，基于不同多模态业务标识信息建立的PDU会话可以满足不同的多模态业务的需求。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
这里，可以采用多模态业务的类型对应的名称来标识多模态业务的类型。也可以采用预先定义的不同的标识符来指示不同的多模态业务的类型。还可以通过预定义列出不同枚举值来定义不同多模态业务的类型的集合，通过多模态业务的类型对应的枚举值类指示不同的多模态业务的类型。不同多模态业务的类型可以采用不同的字符和/或字符串进行指示。
在一个实施例中，所述多模态业务的类型与所述多模态业务标识信息 的对应关系是由核心网配置的或预先商定的。
这里，多模态业务的类型与所述多模态业务标识信息的对应关系可以是预先通过通信协议等商定的，或者，也可以由核心网配置的。
对应关系可以由基站通过系统消息等进行广播。UE在接入基站时可以通过接收系统消息等确定多模态业务的类型与所述多模态业务标识信息的对应关系。当UE需要建立多模态业务的PDU会话时，可以基于对应关系确定多模态业务标识信息。
本实施例提供一种信息传输方法可以应用于核心网的会话管理功能SMF，如图3所示，信息传输方法可以包括：
步骤301：接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
这里，多模态业务的PDU会话可以采用多个传输连接分别传输一个模态的数据。不同数据的来源或者形式，可以称为一种模态。可以基于数据的媒介区分输入模态，例如：语音、视频、文字等分别可以称为一种模态；也可以基于输入数据不同获取方式区分模态，例如：分别通过传感器，雷达、红外和加速度计等得到的数据可以分别称为一种模态的数据。多模态业户可以包括：多模态通信和服务等
可以由蜂窝移动通信网络中的手机终端、物联网终端等用户设备(UE，User Equipment)发送通过图像传感器、音频传感器等获取的多模态数据。
UE可以向核心网发送针对多模态业务的PDU会话建立请求，请求建立多模态业务的PDU会话，采用不同的传输连接传输不同模态的数据。
UE可以通过接入网(RAN)向核心网转发PDU会话建立请求。这里，可以由核心网中的AMF接收PDU会话建立请求。AMF用于管理UE的接入权限和切换等。
多模态业务标识信息可以用于标识请求的PDU会话的业务，也可以标识请求的PDU会话对应的多模态业务的类型、名称等。核心网可以基于多模态业务标识信息确定PDU会话所需的配置和资源等，进而建立适用于多模态业务的PDU会话。PDU会话建立请求中可以携带有PDU会话识别号、数据网络名(DNN，Data Network Name)请求类型等。其中，请求类型可以指示PDU会话建立请求为初次请求还是已有会话等。
如此，PDU会话建立请求中携带多模态业务标识信息，一方面，隐含指示请求建立的PDU会话的类型：多模态业务的PDU会话。另一方面，多模态业务标识信息可以用于指示多模态业务的类型等，为PDU会话的建立提供必要的信息，提高信息指示效率。
SMF是基于服务架构的一个功能单元。SMF主要负责与分离的数据面交互，创建、更新和删除PDU会话，并管理与UPF的会话环境。
AMF可以首选选择为请求建立PDU会话的UE服务的SMF，并向SMF请求创建PDU会话上下文的服务，AMF可以在上下文服务请求中携带多模态业务标识信息，用于向SMF指示请求建立的PDU会话所对应的业务。
发送上下文服务请求的主要目的有三个：建立AMF与SMF关于UE会话的联系；传输有UE的签约数据、触发整个会话建立流程。请求中可以包含：签约永久标识(SUPI，SUbscription Permanent Identifier)、PDU会话识别号(PDU Session ID)、以及PDU会话请求等，即：AMF获知的签约数据以及UE给SMF的会话建立消息。
SMF接收到上下文服务请求后，可以确定是否针对该多模态业务标识信息建立多模态业务的PDU会话。
在一个实施例中，AMF在收到携带有多模态业务标识信息的PDU会话建立请求后，还可以检查是否可以为该多模态UE建立支持该多模态业务的PDU会话。响应于可以为该多模态UE建立支持该多模态业务的PDU会 话，向SMF发送携带有所述多模态业务标识信息的上下文服务请求。
在一个实施例中，所述接收AMF发送的携带有多模态业务标识信息的上下文服务请求，包括以下之一：
接收携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
接收携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
如果AMF没有与UE提供的PDU会话识别号对应的SMF关联，例如，当请求类型指示“初始请求”时，则AMF发Nsmf_PDUSession_CreateSMContext Request信令。
如果AMF已经与UE提供的PDU会话识别号对应的SMF关联，例如，当请求类型指示“现有PDU会话”时，AMF发Nsmf_PDUSession_UpdateSMContext Request信令。
可以采用Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令中的预留比特位等携带多模态业务标识信息，如此，可以提高Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令的使用效率。
在一个实施例中，所述方法还包括；
响应于同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的上下文服务响应；
响应于不同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的PDU会话拒绝指令。
如果SMF接收到Nsmf_PDUSession_CreateSMContext Request信令或Nsmf_PDUSession_UpdateSMContext Request信令，并且SMF能够处理PDU 会话建立请求，则SMF创建PDU会话上下文并通过发送上下文服务响应响应AMF，指示SMF同意建立多模态业务标识信息对应的PDU会话，否则，SMF通过拒绝指令指示SMF不同意建立多模态业务标识信息对应的PDU会话。
在一个实施例中，所述向所述AMF发送携带有所述多模态业务标识信息的上下文服务响应，包括以下之一：
向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令；
向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令。
针对AMF发送的Nsmf_PDUSession_CreateSMContext Request信令，如果SMF同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模态业务标识信息Nsmf_PDUSession_CreateSMContext Response信令进行响应。
针对AMF发送的Nsmf_PDUSession_UpdateSMContext Request信令，如果SMF同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模态业务标识信息Nsmf_PDUSession_UpdateSMContext Response进行响应。
在一个实施例中，所述向所述AMF发送携带有所述多模态业务标识信息的PDU会话拒绝指令，包括：
向所述AMF发送携带有所述多模态业务标识信息的PDU Session Reject信令。
针对AMF发送的Nsmf_PDUSession_CreateSMContext Request信令、或Nsmf_PDUSession_UpdateSMContext Request信令，如果SMF不同同意建立多模态业务标识信息对应的PDU会话，则SMF可以采用携带有多模 态业务标识信息的PDU Session Reject信令进行响应。
在一个实施例中，所述方法还包括：
响应于同意建立所述PDU会话，选择所述多模态业务关联的用户面功能UPF。
如果同意建立多模态业务标识信息对应的PDU会话，SMF会选择合适的用户面功能(UPF，User Plane Function)来建立PDU会话
UPF为用户面网元，基于SMF下发的转发规则，UPF作出响应的转发处理，同时作为用户平面与数据网络(DN，Data Network)之间的网关。
在一个实施例中，所述方法还包括：
响应于成功建立所述PDU会话，向所述AMF发送所述PDU会话的会话管理信息。
SMF完成PDU会话建立后，可以通过AMF向UE和基站转发PDU会话的会话管理(SM，Eession Management)相关信息。这里，会话管理信息可以包括但不限于：PDU会话标识号、N2会话管理信息(N2 SM information)以及N1会话管理容器(N1 SM container)等。
在一个实施例中，所述向所述AMF发送所述PDU会话的会话管理信息，包括：
向所述AMF发送携带有所述PDU会话的会话管理信息的Namf_Communication_N1N2MessageTransfer信令。
可以采用Namf_Communication_N1N2MessageTransfer信令中的预留比特位等携带多模态业务标识信息对应PDU会话的会话管理信息，如此，可以提高Namf_Communication_N1N2MessageTransfer信令的使用效率。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
不同类型的多模态业务对于需求的传输连接的数量以及PDU会话的要 求不同。因此，可以采用不同的多模态业务标识信息标识不同的多模态业务的类型。
如此，基于不同多模态业务标识信息建立的PDU会话可以满足不同的多模态业务的需求。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
这里，可以采用多模态业务的类型对应的名称来标识多模态业务的类型。也可以采用预先定义的不同的标识符来指示不同的多模态业务的类型。还可以通过预定义列出不同枚举值来定义不同多模态业务的类型的集合，通过多模态业务的类型对应的枚举值类指示不同的多模态业务的类型。不同多模态业务的类型可以采用不同的字符和/或字符串进行指示。
本实施例提供一种信息传输方法可以应用于核心网的用户设备UE，如图4所示，信息传输方法可以包括：
步骤401：向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
这里，多模态业务的PDU会话可以采用多个传输连接分别传输一个模态的数据。不同数据的来源或者形式，可以称为一种模态。可以基于数据的媒介区分输入模态，例如：语音、视频、文字等分别可以称为一种模态；也可以基于输入数据不同获取方式区分模态，例如：分别通过传感器，雷达、红外和加速度计等得到的数据可以分别称为一种模态的数据。多模态业户可以包括：多模态通信和服务等
可以由蜂窝移动通信网络中的手机终端、物联网终端等用户设备(UE，User Equipment)发送通过图像传感器、音频传感器等获取的多模态数据。
UE可以向核心网发送针对多模态业务的PDU会话建立请求，请求建立多模态业务的PDU会话，采用不同的传输连接传输不同模态的数据。
UE可以通过接入网(RAN)向核心网转发PDU会话建立请求。这里，可以由核心网中的AMF接收PDU会话建立请求。AMF用于管理UE的接入权限和切换等。
多模态业务标识信息可以用于标识请求的PDU会话的业务，也可以标识请求的PDU会话对应的多模态业务的类型、名称等。核心网可以基于多模态业务标识信息确定PDU会话所需的配置和资源等，进而建立适用于多模态业务的PDU会话。PDU会话建立请求中可以携带有PDU会话识别号、数据网络名(DNN，Data Network Name)请求类型等。其中，请求类型可以指示PDU会话建立请求为初次请求还是已有会话等。
如此，PDU会话建立请求中携带多模态业务标识信息，一方面，隐含指示请求建立的PDU会话的类型：多模态业务的PDU会话。另一方面，多模态业务标识信息可以用于指示多模态业务的类型等，为PDU会话的建立提供必要的信息，提高信息指示效率。
在一个实施例中，所述向AMF发送针对多模态业务的PDU会话建立请求，包括：
发送携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
PDU会话建立请求的多模态业务标识信息可以添加在PDU Session Establishment Request信令中由UE发给AMF。
可以采用PDU Session Establishment Request信令中的预留比特位等携带多模态业务标识信息，如此，可以提高PDU Session Establishment Request 信令的使用效率。
在一个实施例中，所述方法还包括：
接收接入网发送的所述PDU会话的会话管理信息，基于所述会话管理信息进行所述PDU会话。
AMF接收到多模态业务标识信息对应PDU会话的会话管理信息后，可以将该会话管理信息发送给接入网。接入网可以获取N2会话管理信息，用于该PDU会话。接入网可以将会话管理信息发送给UE。
在一个实施例中，所述接收接入网发送的所述PDU会话的会话管理信息，包括：
接收所述接入网发送的携带有所述PDU会话的会话管理信息的RRC Connection Reconfiguration信令。
接入网接收到多模态业务标识信息对应PDU会话的会话管理信息后，可以将该会话管理信息携带于RRC Connection Reconfiguration信令中，并发送给UE。UE从RRC Connection Reconfiguration信令中解析出会话管理信息，进而进行多模态业务的传输。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
不同类型的多模态业务对于需求的传输连接的数量以及PDU会话的要求不同。因此，可以采用不同的多模态业务标识信息标识不同的多模态业务的类型。
如此，基于不同多模态业务标识信息建立的PDU会话可以满足不同的多模态业务的需求。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
这里，可以采用多模态业务的类型对应的名称来标识多模态业务的类型。也可以采用预先定义的不同的标识符来指示不同的多模态业务的类型。还可以通过预定义列出不同枚举值来定义不同多模态业务的类型的集合，通过多模态业务的类型对应的枚举值类指示不同的多模态业务的类型。不同多模态业务的类型可以采用不同的字符和/或字符串进行指示。
在一个实施例中，所述多模态业务的类型与所述多模态业务标识信息的对应关系是由核心网配置的或预先商定的。
这里，多模态业务的类型与所述多模态业务标识信息的对应关系可以是预先通过通信协议等商定的，或者，也可以由核心网配置的。
在一个实施例中，所述方法还包括：
接收基站广播的所述多模态业务的类型与所述多模态业务标识信息的对应关系的指示信息。
对应关系可以由基站通过系统消息等进行广播。UE在接入基站时可以通过接收系统消息等确定多模态业务的类型与所述多模态业务标识信息的对应关系。当UE需要建立多模态业务的PDU会话时，可以基于对应关系确定多模态业务标识信息。
以下结合上述任意实施例提供一个具体示例：
本示例提出了一种多模态通信建立的方法。
1.多模态UE在进行PDU会话建立时，向核心网发送当前PDU会话建立请求对应的多模态通信或者服务信息。
1.当前PDU会话建立请求对应的多模态通信或者服务信息可以添加在PDU Session Establishment Request信令中由UE发给AMF。
2.该信息可以由具体的多模态通信或者服务名称来标识。
3.该信息可以由不同的整数ID值或者不同的枚举值或者字符/字符串来对应代表不同的多模态通信/业务类型。
a)该对应关系可以由基站进行广播。
b)也可以由核心网进行配置。
c)也可以定义默认对应关系。
2.AMF在收到带有对应的多模态通信或者服务信息的PDU建立请求后，将根据该信息为该多模态终端选择合适的SMF。
1.AMF在收到带有对应的多模态通信或者服务信息的PDU建立请求后，还可以检查是否可以为该多模态终端建立支持该多模态通信或者服务的PDU会话。
3.AMF在选择好SMF后，向SMF发送携带有对应的多模态通信或者服务信息的Nsmf_PDUSession_CreateSMContext Request信令或者Nsmf_PDUSession_UpdateSMContext Request信令。
4.SMF收到AMF发送的携带有对应的多模态通信或者服务信息的Nsmf_PDUSession_CreateSMContext Request信令或者Nsmf_PDUSession_UpdateSMContext Request信令后，决定是否可以为该多模态通信或者服务建立PDU会话。
1.如果同意建立，则回复携带有同意的的多模态通信或者服务信息的Nsmf_PDUSession_CreateSMContext Response信令或Nsmf_PDUSession_UpdateSMContext Response信令。
2.如果不同意建立，则回复携带有不同意的多模态通信或者服务信息的PDU Session Reject(Cause)信令。
5.如果同意建立，SMF会选择合适的UPF来建立PDU会话。
6.PDU会话建立成功后，SMF向AMF发送携带有为该多模态通信或者服务建立的PDU会话信息的 Namf_Communication_N1N2MessageTransfer信令。
7.AMF收到该信令后，向RAN发送携带有为该多模态通信或者服务建立的PDU会话信息的N2 PDU Session Request信令。
8.RAN收到AMF发送的该信令后，让UE发送携带有为该多模态通信或者服务建立的PDU会话信息的RRC Connection Reconfiguration信令。
本发明实施例还提供了一种信息传输装置，应用于核心网的接入和移动管理功能AMF，图5为本发明实施例提供的信息传输装置100的组成结构示意图；如图5所示，装置100包括：第一接收模块110，其中，
所述第一接收模块110，配置为接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
在一个实施例中，所述第一接收模块110，包括：
第一接收子模块111，配置为接收UE发送的携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
在一个实施例中，所述装置100还包括：
第一选择模块120，配置为响应于接收到所述PDU会话建立请求，选择与所述多模态业务关联的会话管理功能SMF；
所述装置100还包括：
第一发送模块130，配置为向选择的所述SMF发送携带有所述多模态业务标识信息的上下文服务请求。
在一个实施例中，所述第一发送模块130，包括以下之一：
第一发送子模块131，配置为所述向选择的所述SMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
第二发送子模块132，配置所述向选择的所述SMF发送携带有所述多 模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
在一个实施例中，所述装置100还包括以下之一：
第一确定模块140，配置为响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的上下文服务响应，确定选择的所述SMF同意建立所述PDU会话；
第二确定模块150，配置为响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU会话拒绝指令，确定选择的所述SMF不同意建立所述PDU会话。
在一个实施例中，所述第一确定模块140，包括以下之一：
第一确定子模块141，配置为响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令，确定选择的所述SMF同意建立所述PDU会话；
第二确定子模块142，配置为响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令，确定选择的所述SMF同意建立所述PDU会话。
在一个实施例中，所述第二确定模块150，包括：
第三确定子模块151，配置为响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU Session Reject信令，确定选择的所述SMF不同意建立所述PDU会话。
在一个实施例中，所述装置100还包括：
第二接收模块160，配置为接收选择的所述SMF响应于成功建立所述PDU会话，发送的所述PDU会话的会话管理信息。
在一个实施例中，所述第二接收模块160，包括：
第二接收子模块161，配置为所述接收选择的所述SMF发送的携带有所述PDU会话的会话管理信息的 Namf_Communication_N1N2MessageTransfer信令。
在一个实施例中，所述装置100还包括：
第二发送模块170，配置为响应于接收到所述PDU会话的会话管理信息，向接入网发送所述PDU会话的会话管理信息；其中，所述PDU会话的会话管理信息，用于供所述接入网发送给所述UE。
在一个实施例中，所述第二发送模块170，包括：
第三发送子模块171，配置为向所述接入网发送携带有所述PDU会话的会话管理信息的N2 PDU Session Request信令。
在一个实施例中，所述PDU会话的会话管理信息，用于供所述接入网携带于RRC Connection Reconfiguration信令中发送给所述UE。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
在一个实施例中，所述多模态业务的类型与所述多模态业务标识信息的对应关系是由核心网配置的或预先商定的。
本发明实施例还提供了一种信息传输装置，应用于核心网的会话管理功能SMF，图6为本发明实施例提供的信息传输装置200的组成结构示意图；如图6所示，装置200包括：第三接收模块210，其中，
所述第三接收模块210，配置为接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
在一个实施例中，所述第三接收模块210，包括以下之一：
第三接收子模块211，配置为接收携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
第四接收子模块212，配置为接收携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
在一个实施例中，所述装置200还包括；
第三发送模块220，配置为响应于同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的上下文服务响应；
第四发送模块230，配置为响应于不同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的PDU会话拒绝指令。
在一个实施例中，所述第三发送模块220，包括以下之一：
第四发送子模块221，配置为向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令；
第五发送子模块222，配置为向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令。
在一个实施例中，所述第四发送模块230，包括：
第六发送子模块231，配置为向所述AMF发送携带有所述多模态业务标识信息的PDU Session Reject信令。
在一个实施例中，所述装置200还包括：
第二选择模块240，配置为响应于同意建立所述PDU会话，选择所述多模态业务关联的用户面功能UPF。
在一个实施例中，所述装置200还包括：
第五发送模块250，配置为响应于成功建立所述PDU会话，向所述AMF发送所述PDU会话的会话管理信息。
在一个实施例中，所述第五发送模块250，包括：
第七发送子模块251，配置为向所述AMF发送携带有所述PDU会话的会话管理信息的Namf_Communication_N1N2MessageTransfer信令。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
本发明实施例还提供了一种信息传输装置，应用于用户设备UE，图7为本发明实施例提供的信息传输装置300的组成结构示意图；如图7所示，装置300包括：第六发送模块310，其中，
所述第六发送模块310，配置为向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
在一个实施例中，所述第六发送模块310，包括：
第八发送子模块311，配置为发送携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
在一个实施例中，所述装置300还包括：
第四接收模块320，配置为接收接入网发送的所述PDU会话的会话管理信息；
会话模块330，配置为基于所述会话管理信息进行所述PDU会话。
在一个实施例中，所述第四接收模块320，包括：
第五接收子模块321，配置为接收所述接入网发送的携带有所述PDU会话的会话管理信息的RRC Connection Reconfiguration信令。
在一个实施例中，不同所述多模态业务的类型对应的所述多模态业务标识信息不同。
在一个实施例中，所述多模态业务标识信息包括以下至少之一：
所述多模态业务的类型对应的名称信息；
所述多模态业务的类型对应的标识符信息；
所述多模态业务的类型对应的枚举值信息；
所述多模态业务的类型对应的字符信息或字符串信息。
在一个实施例中，所述多模态业务的类型与所述多模态业务标识信息的对应关系是由核心网配置的或预先商定的。
在一个实施例中，所述装置300还包括：
第五接收模块340，配置为接收基站广播的所述多模态业务的类型与所述多模态业务标识信息的对应关系的指示信息。
在示例性实施例中，第一接收模块110、第一选择模块120、第一发送模块130、第一确定模块140、第二确定模块150、第二接收模块160、第二发送模块170、第三接收模块210、第三发送模块220、第四发送模块230、第二选择模块240、第五发送模块250、第六发送模块310、第四接收模块320、会话模块330和第五接收模块340等可以被一个或多个中央处理器(CPU，Central Processing Unit)、图形处理器(GPU，Graphics Processing Unit)、基带处理器(BP，baseband processor)、应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU，Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现，也可以结合一个或多个射频(RF，radio frequency)天线实现，用于执行前述方法。
图8是根据一示例性实施例示出的一种用于信息传输的装置3000的框图。例如，装置3000可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图8，装置3000可以包括以下一个或多个组件：处理组件3002，存储器3004，电源组件3006，多媒体组件3008，音频组件3010，输入/输出(I/O)的接口3012，传感器组件3014，以及通信组件3016。
处理组件3002通常控制装置3000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件3002可以包括一个或多个处理器3020来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件3002可以包括一个或多个模块，便于处理组件3002和其他组件之间的交互。例如，处理组件3002可以包括多媒体模块，以方便多媒体组件3008和处理组件3002之间的交互。
存储器3004被配置为存储各种类型的数据以支持在设备3000的操作。这些数据的示例包括用于在装置3000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器3004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
通信组件3016被配置为便于装置3000和其他设备之间有线或无线方式的通信。装置3000可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件3016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件3016还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA) 技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置3000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器3004，上述指令可由装置3000的处理器3020执行以完成上述方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明实施例的其它实施方案。本申请旨在涵盖本发明实施例的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明实施例的一般性原理并包括本公开实施例未公开的本技术领域中的公知常识或惯用技术手段。此外，对于本技术领域的普通技术人员来说，在不脱离本公开原理的前提下，还可以对本公开中各个实施方式的步骤或模块进行替换或组合，这些替换、组合也应视为本公开的保护范围。说明书和实施例仅被视为示例性的，本发明实施例的要求保护的范围和精神由下面的权利要求指出。
应当理解的是，本发明实施例并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明实施例的范围仅由所附的权利要求来限制。

Claims (32)

  1. 一种信息传输方法，其中，应用于核心网的接入和移动管理功能AMF，所述方法包括：
    接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
  2. 根据权利要求1所述的方法，其中，所述接收UE发送针对多模态业务传输的PDU会话建立请求，包括：
    接收UE发送的携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：响应于接收到所述PDU会话建立请求，选择与所述多模态业务关联的会话管理功能SMF；
    所述方法还包括：向选择的所述SMF发送携带有所述多模态业务标识信息的上下文服务请求。
  4. 根据权利要求3所述的方法，其中，所述向选择的所述SMF发送携带有所述多模态业务标识信息的上下文服务请求，包括以下之一：
    所述向选择的所述SMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
    所述向选择的所述SMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
  5. 根据权利要求3所述的方法，其中，所述方法还包括以下之一：
    响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的上下文服务响应，确定选择的所述SMF同意建立所述PDU会话；
    响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU会话拒绝指令，确定选择的所述SMF不同意建立所述PDU会话。
  6. 根据权利要求5所述的方法，其中，所述响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的上下文服务响应，确定选择的所述SMF同意建立所述PDU会话，包括以下之一：
    响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令，确定选择的所述SMF同意建立所述PDU会话；
    响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令，确定选择的所述SMF同意建立所述PDU会话。
  7. 根据权利要求5所述的方法，其中，所述响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU会话拒绝指令，确定选择的所述SMF不同意建立所述PDU会话，包括：
    响应于接收到选择的所述SMF发送的携带有所述多模态业务标识信息的PDU Session Reject信令，确定选择的所述SMF不同意建立所述PDU会话。
  8. 根据权利要求3所述的方法，其中，所述方法还包括：
    接收选择的所述SMF响应于成功建立所述PDU会话，发送的所述PDU会话的会话管理信息。
  9. 根据权利要求8所述的方法，其中，所述接收选择的所述SMF响应于所述PDU会话建立，发送的所述PDU会话的会话管理信息，包括：
    所述接收选择的所述SMF发送的携带有所述PDU会话的会话管理信息的Namf_Communication_N1N2MessageTransfer信令。
  10. 根据权利要求8所述的方法，其中，所述方法还包括：
    响应于接收到所述PDU会话的会话管理信息，向接入网发送所述PDU会话的会话管理信息；其中，所述PDU会话的会话管理信息，用于供所述 接入网发送给所述UE。
  11. 根据权利要求10所述的方法，其中，所述响应于接收到所述PDU会话的会话管理信息，向接入网发送所述PDU会话的会话管理信息，包括：
    向所述接入网发送携带有所述PDU会话的会话管理信息的N2 PDU Session Request信令。
  12. 根据权利要求10所述的方法，其中，所述PDU会话的会话管理信息，用于供所述接入网携带于RRC Connection Reconfiguration信令中发送给所述UE。
  13. 一种信息传输方法，其中，应用于核心网的会话管理功能SMF，所述方法包括：
    接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
  14. 根据权利要求13所述的方法，其中，所述接收AMF发送的携带有多模态业务标识信息的上下文服务请求，包括以下之一：
    接收携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Request信令；
    接收携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Request信令。
  15. 根据权利要求13所述的方法，其中，所述方法还包括；
    响应于同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的上下文服务响应；
    响应于不同意建立所述PDU会话，向所述AMF发送携带有所述多模态业务标识信息的PDU会话拒绝指令。
  16. 根据权利要求15所述的方法，其中，所述向所述AMF发送携带 有所述多模态业务标识信息的上下文服务响应，包括以下之一：
    向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_CreateSMContext Response信令；
    向所述AMF发送携带有所述多模态业务标识信息的Nsmf_PDUSession_UpdateSMContext Response信令。
  17. 根据权利要求15所述的方法，其中，所述向所述AMF发送携带有所述多模态业务标识信息的PDU会话拒绝指令，包括：
    向所述AMF发送携带有所述多模态业务标识信息的PDU Session Reject信令。
  18. 根据权利要求13所述的方法，其中，所述方法还包括：
    响应于同意建立所述PDU会话，选择所述多模态业务关联的用户面功能UPF。
  19. 根据权利要求13所述的方法，其中，所述方法还包括：
    响应于成功建立所述PDU会话，向所述AMF发送所述PDU会话的会话管理信息。
  20. 根据权利要求19所述的方法，其中，所述向所述AMF发送所述PDU会话的会话管理信息，包括：
    向所述AMF发送携带有所述PDU会话的会话管理信息的Namf_Communication_N1N2MessageTransfer信令。
  21. 一种信息传输方法，其中，应用于核心网的用户设备UE，所述方法包括：
    向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
  22. 根据权利要求21所述的方法，其中，所述向AMF发送针对多模 态业务的PDU会话建立请求，包括：
    发送携带有所述多模态业务标识信息的PDU Session Establishment Request信令。
  23. 根据权利要求21所述的方法，其中，所述方法还包括：
    接收接入网发送的所述PDU会话的会话管理信息，基于所述会话管理信息进行所述PDU会话。
  24. 根据权利要求23所述的方法，其中，所述接收接入网发送的所述PDU会话的会话管理信息，包括：
    接收所述接入网发送的携带有所述PDU会话的会话管理信息的RRC Connection Reconfiguration信令。
  25. 根据权利要求21至24任一项所述的方法，其中，所述方法还包括：
    接收基站广播的所述多模态业务的类型与所述多模态业务标识信息的对应关系的指示信息。
  26. 一种信息传输装置，其中，应用于核心网的接入和移动管理功能AMF，所述装置包括：第一接收模块，其中，
    所述第一接收模块，配置为接收用户设备UE发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
  27. 一种信息传输装置，其中，应用于核心网的会话管理功能SMF，所述装置包括：第三接收模块，其中，
    所述第三接收模块，配置为接收接入和移动管理功能AMF发送的携带有多模态业务标识信息的上下文服务请求，其中，所述上下文服务请求，用于请求建立针对多模态业务的协议数据单元PDU会话建立。
  28. 一种信息传输装置，其中，应用于核心网的用户设备UE，所述装 置包括：第六发送模块，其中，
    所述第六发送模块，配置为向接入和移动管理功能AMF发送针对多模态业务的协议数据单元PDU会话建立请求，其中，所述PDU会话建立请求携带有多模态业务标识信息。
  29. 根据权利要求28所述的装置，其中，所述装置还包括：
    第五接收模块，配置为接收基站广播的所述多模态业务的类型与所述多模态业务标识信息的对应关系的指示信息。
  30. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如权利要求1至12任一项所述信息传输方法的步骤。
  31. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如权利要求13至20任一项所述信息传输方法的步骤。
  32. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如权利要求21至25任一项所述信息传输方法的步骤。
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