WO2021136467A1 - 多播业务实现方法及装置、通信设备 - Google Patents

多播业务实现方法及装置、通信设备 Download PDF

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Publication number
WO2021136467A1
WO2021136467A1 PCT/CN2020/141890 CN2020141890W WO2021136467A1 WO 2021136467 A1 WO2021136467 A1 WO 2021136467A1 CN 2020141890 W CN2020141890 W CN 2020141890W WO 2021136467 A1 WO2021136467 A1 WO 2021136467A1
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Prior art keywords
network function
multicast
multicast service
request
implementing
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PCT/CN2020/141890
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English (en)
French (fr)
Inventor
谢振华
王文
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维沃移动通信有限公司
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Priority to EP20909638.7A priority Critical patent/EP4087188A4/en
Priority to BR112022013229A priority patent/BR112022013229A2/pt
Priority to JP2022540997A priority patent/JP7357797B2/ja
Priority to AU2020416492A priority patent/AU2020416492B2/en
Priority to KR1020227021991A priority patent/KR102628461B1/ko
Priority to CA3166529A priority patent/CA3166529A1/en
Publication of WO2021136467A1 publication Critical patent/WO2021136467A1/zh
Priority to US17/852,710 priority patent/US20220329986A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • 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
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast

Definitions

  • the present invention relates to the field of communication technology, in particular to a method and device for realizing a multicast service, and communication equipment.
  • the embodiments of the present invention provide a method and device for realizing a multicast service, and communication equipment, which can enable the multicast service to provide services under a 5G network architecture.
  • an embodiment of the present invention provides a method for implementing a multicast service, which is applied to the first network function of a communication device, including:
  • an embodiment of the present invention provides a method for implementing a multicast service, which is applied to a second network function of a communication device, including:
  • embodiments of the present invention also provide a method for implementing multicast services, which is applied to the third network function of a communication device, including:
  • a second invocation result is returned to the second network function, and the second invocation result indicates that an error has occurred.
  • an embodiment of the present invention provides a method for implementing a multicast service, which is applied to a terminal, and includes:
  • an embodiment of the present invention provides a multicast service realization device, which is applied to the first network function of a communication device, including:
  • the first receiving module is configured to receive a request from a terminal to carry multicast service information
  • the first execution module is used to execute a unicast session establishment process and establish a unicast session connection with the terminal.
  • an embodiment of the present invention provides a multicast service realization device, which is applied to the second network function of a communication device, including:
  • the second receiving module is configured to receive the first call parameter of the first network function, where the first call parameter is used to call the multicast session context service operation of the second network function;
  • the first sending module is configured to send a first invocation result to the first network function, where the first invocation result indicates that the establishment of a multicast session connection fails.
  • an embodiment of the present invention provides a multicast service realization device, which is applied to a third network function of a communication device, including:
  • the third receiving module is configured to receive a second call parameter of a second network function, where the second call parameter is used to call an authorization service operation of the third network function;
  • the second sending module is configured to return a second invocation result to the second network function, and the second invocation result indicates that an error has occurred.
  • an embodiment of the present invention provides an apparatus for implementing a multicast service, which is applied to a terminal, and includes:
  • the third sending module is configured to send a request carrying multicast service information to the first network function
  • the second execution module is used to execute the unicast session establishment process.
  • an embodiment of the present invention also provides a communication device.
  • the communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor, and the processor executes all
  • the computer program implements the steps of the method for implementing the multicast service as described above.
  • an embodiment of the present invention provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for realizing a multicast service as described above is implemented A step of.
  • the first network function when a terminal requests a multicast service, the first network function performs a unicast session establishment process with the terminal after interacting with the second network function, and establishes a unicast session connection with the terminal, which can be based on the service configuration of the 5G network architecture Provide services for multicast services.
  • FIG. 1 is one of the flowcharts of a method for implementing a multicast service according to an embodiment of the present invention
  • Fig. 2 is the second flowchart of the method for realizing a multicast service according to an embodiment of the present invention
  • FIG. 3 is the third flowchart of the method for implementing a multicast service according to an embodiment of the present invention.
  • FIG. 4 is the fourth flow chart of the method for implementing a multicast service according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the architecture of a multicast service according to an embodiment of the present invention.
  • Fig. 6 is the fifth flowchart of the method for realizing a multicast service according to an embodiment of the present invention.
  • FIG. 7 is a sixth flowchart of a method for implementing a multicast service according to an embodiment of the present invention.
  • Fig. 8 is a seventh flowchart of a method for implementing a multicast service according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a first network function according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a second network function according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a third network function according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • the communication device in the embodiment of the present invention may be a terminal or a network device.
  • the terminal can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal can be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA). ), Mobile Internet Device (MID), Wearable Device (Wearable Device), or in-vehicle device and other terminal-side devices.
  • UE User Equipment
  • PDA Personal Digital Assistant
  • MID Mobile Internet Device
  • Wearable Device Wearable Device
  • in-vehicle device and other terminal-side devices.
  • the specific types of terminals are not limited in the embodiments of the present invention.
  • the network device may be a base station or a core network element.
  • the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point, or other access point, etc.), and the base station may Known as Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service) Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node or some other appropriate term in the field, as long as the same technology is achieved
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESD Extended Service Set
  • WiFi Node Wireless Fidelity
  • the above-mentioned core network elements can be selected as access and mobility management functions (Access and Mobility Management Function, AMF), which can also be called access management functions; they can also be selected as session management functions (Session Management Function, SMF) .
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • the 3rd Generation Partnership Project (3GPP) defines the user joining process of the multicast service of the mobile network, but this process is only applicable to 2G, 3G and 4G networks.
  • the core network of the 5G network adopts a service-based architecture ( Service Based Architecture), the core network is no longer based on network elements with complete software and hardware to provide services, but based on network functions in the form of software.
  • the existing multicast service network elements cannot adapt to the new architecture through simple changes, resulting in Existing multicast services cannot be applied in 5G networks.
  • the embodiments of the present invention provide a method and device for realizing a multicast service, and communication equipment, which can enable the multicast service to provide services under a 5G network architecture.
  • the embodiment of the present invention provides a method for implementing a multicast service, which is applied to the first network function of a communication device, as shown in FIG. 1, including:
  • Step 11 Receive a request for carrying multicast service information from the terminal
  • Step 12 Perform a unicast session establishment process to establish a unicast session connection with the terminal.
  • the first network function executes a unicast session establishment process after receiving a request to carry multicast service information from a terminal, and establishes a unicast session connection with the terminal, enabling the multicast service to be provided under the 5G network architecture service.
  • the method further includes:
  • the request includes any of the following:
  • the first data message used to request to join the multicast group
  • the first invocation parameter includes the user identification of the terminal and the multicast service information.
  • the multicast service information includes at least one of the following: a multicast address, a multicast group identifier, and first indication information used to indicate a multicast session.
  • the request may be sent to the first network function through a signaling path;
  • the request may be delivered to the first network function through the user plane path.
  • the first call result may further include at least one of the following:
  • Second indication information indicating whether the user is in the multicast service group
  • the method further includes:
  • the first network function may be AMF or SMF.
  • terminal and terminal user are different concepts.
  • the end user can be understood as the owner of the terminal and the user of the terminal.
  • the embodiment of the present invention provides a method for realizing a multicast service, which is applied to the second network function of a communication device, as shown in FIG. 2, including:
  • Step 21 Receive a first call parameter of a first network function, where the first call parameter is used to call a multicast session context service operation of the second network function;
  • Step 22 Send a first invocation result to the first network function, where the first invocation result indicates that the establishment of a multicast session connection fails.
  • the method may further include:
  • the second parameter may further include a user identification of the terminal and multicast service information.
  • the multicast service information includes at least one of the following: a multicast address, a multicast group identifier, and first indication information used to indicate a multicast session.
  • the second call result may include at least one of the following:
  • Third indication information indicating that the user is in the multicast service group or not in the multicast service group
  • the second network function may send the reason for the failure to the first network function so that the first network function can learn the reason for the failure.
  • the second network function may be a broadcast multicast session function (Multicast Broadcast Session Management, MBSF); or AMF and MBSF; or SMF and MBSF.
  • MBSF Multicast Broadcast Session Management
  • AMF and MBSF AMF and MBSF
  • SMF and MBSF SMF and MBSF
  • the embodiment of the present invention provides a method for implementing a multicast service, which is applied to the third network function of a communication device, as shown in FIG. 3, including:
  • Step 31 Receive a second call parameter of a second network function, where the second call parameter is used to call an authorization service operation of the third network function;
  • Step 32 Return a second invocation result to the second network function, where the second invocation result indicates that an error has occurred.
  • returning the second invocation result to the second network function includes any of the following:
  • Receive event operation information of the fourth network function send a decision request to the fourth network function, and receive a third result of the fourth network function, where the third result indicates that an error has occurred.
  • the third network function may be a broadcast multicast policy control function (Multicast Broadcast Policy Control Function, MBPCF).
  • MBPCF Multicast Broadcast Policy Control Function
  • the embodiment of the present invention provides a method for realizing a multicast service, which is applied to a terminal, as shown in FIG. 4, including:
  • Step 41 Send a request carrying multicast service information to the first network function
  • Step 42 Perform a unicast session establishment process.
  • the request includes any of the following:
  • the first data message used to request to join the multicast group
  • the unicast session establishment process includes any one of the following:
  • the request may be sent to the first network function through a signaling path;
  • the request may be delivered to the first network function through the user plane path.
  • the method further includes receiving at least one of the following information of the first network function;
  • Second indication information indicating whether the user is in the multicast service group
  • the terminal After the terminal receives the reason for the failure, it can learn the reason for the failure.
  • terminal and terminal user are different concepts.
  • the end user can be understood as the owner of the terminal and the user of the terminal.
  • FIG. 5 is a schematic diagram of a multicast service architecture according to an embodiment of the present invention.
  • the interface R101 is used for signaling interaction between a terminal (User Equipment, UE) and an Access Management Function (Access Management Function, AMF) .
  • the interface R102 is used for the terminal and the radio access system (Radio Access Network, RAN), that is, the signaling and data exchange between the base station systems.
  • the interface R103 is used for signaling interaction between the wireless access system and the AMF.
  • the interface R104 is used for control signaling interaction between a user plane function (User Plan Function, UPF) and a session management function (Session Management Function, SMF).
  • the interface R105 is used for the control signaling interaction between the Multicast Broadcast User Plan Function (MBUF).
  • MBUF Multicast Broadcast User Plan Function
  • the service-based invocation S106 is a variety of access management-related services opened by the AMF for other network functions (Network Function, NF) to invoke.
  • Service-based invocation S107 is a variety of session management-related services opened by SMF for other NFs to invoke.
  • the servicing call S108 is the Broadcast Multicast Policy Control Function (MBPCF) which is opened for various broadcast and multicast policy control related services invoked by other NFs.
  • the service-based invocation S109 is a broadcast multicast session function (Multicast Broadcast Session Management, MBSF) that is opened for other NFs to invoke various broadcast-multicast session management related services.
  • MPCF Broadcast Multicast Policy Control Function
  • the first network function can convert the multicast service into a unicast transmission mode according to the user request of the terminal. As shown in FIG. 6, this embodiment includes the following steps:
  • Step 201 The terminal finds that the broadcast signal is degraded, and hopes to still receive relevant data content
  • Step 202 The terminal sends a unicast session establishment request to the SMF, such as sending a PDU Session Establishment Request message, which carries multicast service information, such as a multicast address (Multicast IP), or a multicast group identifier (Temporary Mobile Group Identifier, TMGI) ), or instruction information used to instruct the establishment of a multicast session;
  • multicast service information such as a multicast address (Multicast IP), or a multicast group identifier (Temporary Mobile Group Identifier, TMGI)
  • TMGI Temporal Mobile Group Identifier
  • Step 203 The SMF calls the multicast context user leave service operation to the MBSF serving the multicast service indicated by the multicast service information, such as calling the Nmbsf_MBContext_UserDelete operation, and the parameters include the user identity (such as International Mobile Subscriber Identity, IMSI) )) and multicast service information;
  • IMSI International Mobile Subscriber Identity
  • Step 204 MBSF invokes the user leaving authorization service operation of MBPCF, such as the Nmbpcf_PolicyAuthorization_UserDelete operation, and the parameters include user identification and multicast service information;
  • Step 205 MBPCF notifies the application corresponding to the multicast service, notifying that some users have left the multicast group, and the notification message contains the second user identifier (such as the IMSI or the general public user identifier queried by the IMSI—General). Public Subscriber Identifier, GPSI for short);
  • the second user identifier such as the IMSI or the general public user identifier queried by the IMSI—General.
  • Step 206 MBPCF judges that the user is in the corresponding multicast group and deletes it from the corresponding group, or MBPCF receives the application return result, and indicates that the user is in the multicast service group.
  • MBPCF returns the result to MBSF. It can carry a group identity, such as a Temporary Mobile Group Identity (TMGI), and can also carry indication information indicating that the user is in a group or not in a group;
  • TMGI Temporary Mobile Group Identity
  • Step 207 MBSF returns the calling result to SMF, which may include indication information indicating that the user is in the group or not in the group;
  • Step 208 After step 202, the SMF performs the unicast session establishment process, that is, the PDU Session Establishment process, or after step 207, the SMF performs the unicast session establishment process, that is, the PDU Session Establishment process, and establishes the unicast session sent to the terminal
  • the completion message (such as PDU Session Establishment Accept) carries the instruction information in step 207.
  • the first network function is SMF
  • the second network function is MBSF
  • the second network function may also be a combination of SMF and MBSF.
  • step 203 and step 207 are internal operations.
  • the first network function converts the multicast service into a unicast transmission mode according to a user request of the terminal. As shown in FIG. 7, this embodiment includes the following steps:
  • Step 301 The terminal is interested in a certain multicast service, such as interacting with the application server of the content provider through an APP, or obtaining it through wireless broadcast information;
  • Step 302 The terminal sends a multicast session establishment request to the SMF, such as sending an MB Session Establishment Request message, which carries multicast service information, such as a multicast address (Multicast IP), or a multicast group identifier (Temporary Mobile Group Identifier, TMGI) ), or indication information used to instruct the establishment of a multicast session, and also carry the information required to establish a unicast session;
  • multicast service information such as a multicast address (Multicast IP), or a multicast group identifier (Temporary Mobile Group Identifier, TMGI)
  • TMGI Temporary Mobile Group Identifier
  • a unicast session establishment request such as a PDU Session Establishment Request message
  • Step 303 SMF calls MBSF's multicast context user to join the service operation, for example, calls the Nmbsf_MBContext_UserAdd operation, and the parameters include user identification (such as IMSI) and multicast service information;
  • Step 304 MBSF calls MBPCF users to join authorization service operations, such as the Nmbpcf_PolicyAuthorization_UserAdd operation, and the parameters include user identification and multicast service information;
  • Step 305 MBPCF notifies the application corresponding to the multicast service, notifying that there are users joining the multicast group, and the notification message contains the second user identifier (such as the IMSI or the GPSI queried by the IMSI);
  • Step 306 MBPCF judges that the user is allowed to receive the corresponding multicast group data, but the number of users in the group is too small, so only unicast is allowed, or MBPCF receives the return result from the application, indicating that only unicast is allowed, and MBPCF sends MBSF to MBSF.
  • the returned result indicates that unicast is allowed to be established, and it can carry a group identifier, such as TMGI, and it can also carry reason information, such as too few users;
  • Step 307 MBSF returns the call result to SMF to indicate that unicast is allowed to be established, which may include reason information;
  • Step 308 The SMF executes the unicast session establishment process, that is, the PDU Session Establishment process, and may carry the reason information in step 307 in the unicast session establishment completion message (such as PDU Session Establishment Accept) sent to the terminal.
  • the unicast session establishment completion message such as PDU Session Establishment Accept
  • the first network function is SMF
  • the second network function is MBSF
  • the second network function may also be a combination of SMF and MBSF.
  • step 303 and step 307 are internal operations.
  • the first network function converts the multicast service into a unicast transmission mode according to a user request of the terminal. As shown in FIG. 8, this embodiment includes the following steps:
  • Step 401 The terminal is interested in a certain multicast service, such as interacting with the application server of the content provider through an APP, or obtaining it through wireless broadcast information;
  • Step 402 The terminal sends an IP message through the user plane, using the join multicast message in the multicast protocol, such as Internet Group Management Protocol (IGMP) Joint message or Multicast Listener Discover (MLD) ) Message, where the source address of the IP message is the IP address of the terminal, and the destination address is the multicast group address, that is, the Multicast IP address;
  • IGMP Internet Group Management Protocol
  • MLD Multicast Listener Discover
  • Step 403 UPF notifies SMF of data arrival, and forwards the intercepted IP message
  • Step 404 SMF calls MBSF's multicast context user to join the service operation, such as calling the Nmbsf_MBContext_UserAdd operation, and the parameters include user identification (such as IMSI) and multicast service information;
  • Step 405 MBSF calls MBPCF users to join authorization service operations, such as the Nmbpcf_PolicyAuthorization_UserAdd operation, and the parameters include user identification and multicast service information;
  • Step 406 MBPCF notifies the application corresponding to the multicast service, notifying that there are users joining the multicast group, and the notification message contains the second user identifier (such as the IMSI or the GPSI queried by the IMSI);
  • Step 407 MBPCF judges that the user is allowed to receive the corresponding multicast group data, but the number of users in the group is too small, so only unicast is allowed, or MBPCF receives the return result from the application, indicating that only unicast is allowed, and MBPCF sends MBSF to MBSF.
  • the returned result indicates that unicast is allowed to be established, and it can carry a group identifier, such as TMGI, and it can also carry reason information, such as too few users;
  • Step 408 The MBSF returns the call result to the SMF indicating that unicast establishment is allowed, which may include reason information, or may directly include a message sent to the terminal to notify the establishment of a unicast connection, such as Initiate PDU Session Establishment Notification, and the message may include reason information;
  • Step 409 The SMF sends a message to notify the terminal to establish a unicast connection, such as Sending Initiate PDU Session Establishment Notification, and it can also forward the received message from the MBSF to notify the terminal to establish a unicast connection;
  • a message such as Sending Initiate PDU Session Establishment Notification
  • Step 410 The terminal performs a unicast session establishment process, that is, a PDU Session Establishment process, and may carry the reason information in step 408 in a unicast session establishment completion message (such as PDU Session Establishment Accept) sent to the terminal.
  • a unicast session establishment process that is, a PDU Session Establishment process
  • a unicast session establishment completion message such as PDU Session Establishment Accept
  • the first network function is SMF
  • the second network function is MBSF
  • the second network function may also be a combination of SMF and MBSF.
  • step 404 and step 408 are internal operations.
  • FIG. 9 is a schematic structural diagram of an apparatus for implementing a multicast service according to an embodiment of the present invention.
  • the apparatus for implementing a multicast service is applied to the first network function of a communication device.
  • the multicast service realization device 50 includes:
  • the first receiving module 51 is configured to receive a request for carrying multicast service information from the terminal;
  • the first execution module 52 is configured to execute a unicast session establishment process and establish a unicast session connection with the terminal.
  • the first network function 50 can implement the various processes implemented in the method embodiment shown in FIG. 1 of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 10 is a schematic structural diagram of an apparatus for implementing a multicast service according to an embodiment of the present invention.
  • the apparatus for implementing a multicast service is applied to the second network function of a communication device.
  • the multicast service realization device 60 includes:
  • the second receiving module 61 is configured to receive a first call parameter of a first network function, where the first call parameter is used to call a multicast session context service operation of the second network function;
  • the first sending module 62 is configured to send a first invocation result to the first network function, where the first invocation result indicates that the establishment of a multicast session connection fails.
  • the second network function 60 can implement each process implemented in the method embodiment shown in FIG. 2 of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a multicast service realization device provided by an embodiment of the present invention, and the multicast service realization device is applied to the third network function of a communication device.
  • the multicast service realization device 70 includes:
  • the third receiving module 71 is configured to receive a second call parameter of a second network function, where the second call parameter is used to call an authorization service operation of the third network function;
  • the second sending module 72 is configured to return a second invocation result to the second network function, and the second invocation result indicates that an error has occurred.
  • the second network function 70 can implement the various processes implemented in the method embodiment shown in FIG. 3 of the present invention and achieve the same beneficial effects. In order to avoid repetition, details are not described herein again.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present invention, and the communication device is a terminal.
  • the terminal 80 includes:
  • the third sending module 81 is configured to send a request carrying multicast service information to the first network function
  • the second execution module 82 is used to execute the unicast session establishment process.
  • the terminal 80 can implement the various processes implemented in the method embodiment shown in FIG. 4 of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of the present invention.
  • the communication device 90 includes: a processor 91, a memory 92, and the The computer program running on the processor, the various components in the communication device 90 are coupled together through the bus interface 93, when the computer program is executed by the processor 91, the implementation in the method embodiment shown in FIG. 1 can be realized
  • the various processes implemented can achieve the same technical effect. In order to avoid repetition, we will not repeat them here.
  • the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, each process implemented in the method embodiment shown in FIG. 1 is implemented, Or, implement each process implemented in the method embodiment shown in FIG. 2, or implement each process implemented in the method embodiment shown in FIG. 3, or implement each process implemented in the method embodiment shown in FIG. 4 , Or, implement each process implemented in the method embodiment shown in FIG. 6, or implement each process implemented in the method embodiment shown in FIG. 7, or implement each process implemented in the method embodiment shown in FIG. 8
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network-side device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present invention.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present invention.
  • the steps of performing the above series of processing can naturally be performed in a chronological order in the order of description, but do not necessarily need to be performed in a chronological order, and some steps can be performed in parallel or independently of each other.
  • Those of ordinary skill in the art can understand that all or any of the steps or components of the method and device of the present invention can be used in any computing device (including a processor, storage medium, etc.) or a network of computing devices with hardware and firmware , Software, or a combination of them. This can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.
  • the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the purpose of the present invention can also be achieved only by providing a program product containing program code for realizing the method or device.
  • a program product also constitutes the present invention
  • a storage medium storing such a program product also constitutes the present invention.
  • the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, obviously, each component or each step can be decomposed and/or recombined.

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Abstract

本发明实施例公开了一种多播业务实现方法及装置、通信设备，属于通信技术领域。多播业务实现方法，应用于通信设备的第一网络功能，包括：接收终端的携带多播业务信息的请求；执行单播会话建立过程，与所述终端建立单播会话连接。

Description

多播业务实现方法及装置、通信设备
相关申请的交叉引用
本申请主张在2020年1月2日在中国提交的中国专利申请号No.202010002085.2的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域，尤其涉及一种多播业务实现方法及装置、通信设备。
背景技术
相关技术基于网元形式提供多播服务，而5G网络的核心网为基于网络功能的服务化架构，多播业务无法在5G网络架构下提供服务。
发明内容
本发明实施例提供了一种多播业务实现方法及装置、通信设备，能够使得多播业务在5G网络架构下提供服务。
第一方面，本发明实施例提供了一种多播业务实现方法，应用于通信设备的第一网络功能，包括：
接收终端的携带多播业务信息的请求；
执行单播会话建立过程，与所述终端建立单播会话连接。
第二方面，本发明实施例提供了一种多播业务实现方法，应用于通信设备的第二网络功能，包括：
接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
第三方面，本发明实施例还提供了一种多播业务实现方法，应用于通信设备的第三网络功能，包括：
接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
向所述第二网络功能返回第二调用结果，所述第二调用结果指示发生错误。
第四方面，本发明实施例提供了一种多播业务实现方法，应用于终端，包括：
向第一网络功能发送携带多播业务信息的请求；
执行单播会话建立过程。
第五方面，本发明实施例提供了一种多播业务实现装置，应用于通信设备的第一网络功能，包括：
第一接收模块，用于接收终端的携带多播业务信息的请求；
第一执行模块，用于执行单播会话建立过程，与所述终端建立单播会话连接。
第六方面，本发明实施例提供了一种多播业务实现装置，应用于通信设备的第二网络功能，包括：
第二接收模块，用于接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
第一发送模块，用于向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
第七方面，本发明实施例提供了一种多播业务实现装置，应用于通信设备的第三网络功能，包括：
第三接收模块，用于接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
第二发送模块，用于向所述第二网络功能返回第二调用结果，所述第二调用结果指示发生错误。
第八方面，本发明实施例提供了一种多播业务实现装置，应用于终端，包括：
第三发送模块，用于向第一网络功能发送携带多播业务信息的请求；
第二执行模块，用于执行单播会话建立过程。
第九方面，本发明实施例还提供了一种通信设备，所述通信设备包括处理器、存储器以及存储于所述存储器上并在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如上所述的多播业务实现方法的步骤。
第十方面，本发明实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的多播业务实现方法的步骤。
上述方案中，在终端请求多播业务时，第一网络功能在与第二网络功能交互后，与终端执行单播会话建立过程，与终端建立单播会话连接，能够基于5G网络架构的业务配置为多播业务提供服务。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例的多播业务实现方法的流程图之一；
图2为本发明实施例的多播业务实现方法的流程图之二；
图3为本发明实施例的多播业务实现方法的流程图之三；
图4为本发明实施例的多播业务实现方法的流程图之四；
图5为本发明实施例的多播业务的架构示意图；
图6为本发明实施例的多播业务实现方法的流程图之五；
图7为本发明实施例的多播业务实现方法的流程图之六；
图8为本发明实施例的多播业务实现方法的流程图之七；
图9为本发明实施例的第一网络功能的结构示意图；
图10为本发明实施例的第二网络功能的结构示意图；
图11为本发明实施例的第三网络功能的结构示意图；
图12为本发明实施例的终端的结构示意图；
图13为本发明实施例的通信设备的结构示意图。
具体实施方式
下面将参照附图更详细地描述本发明的示例性实施例。虽然附图中显示了本发明的示例性实施例，然而应当理解，可以以各种形式实现本发明而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本发明，并且能够将本发明的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
可选的，本发明实施例中的通信设备可为终端或者网络设备。其中，终端也可以称作终端设备或者用户终端(User Equipment，UE)，终端可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本发明实施例中并不限定终端的具体类型。
网络设备可以是基站或者核心网网元。其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其他接入点等)，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、 无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，不限于特定技术词汇。
上述核心网网元可选为接入和移动性管理功能(Access and Mobility Management Function，AMF)，该AMF也可称为接入管理功能；也可选为会话管理功能(Session Management Function，SMF)。
第三代伙伴项目(3rd Generation Partnership Project，3GPP)定义了移动网络的多播业务用户加入过程，但该过程仅适用于2G、3G和4G网络，5G网络的核心网采用了基于服务的架构(Service Based Architecture)，核心网不再基于具有完整软件和硬件的网元来提供服务，而是基于软件形式的网络功能，现有的多播业务网元无法通过简单改变来适应新的架构，导致现有的多播业务无法在5G网络中应用。
本发明实施例提供了一种多播业务实现方法及装置、通信设备，能够使得多播业务在5G网络架构下提供服务。
本发明实施例提供了一种多播业务实现方法，应用于通信设备的第一网络功能，如图1所示，包括：
步骤11：接收终端的携带多播业务信息的请求；
步骤12：执行单播会话建立过程，与所述终端建立单播会话连接。
本实施例中，第一网络功能在接收终端的携带多播业务信息的请求后，执行单播会话建立过程，与所述终端建立单播会话连接，能够使得多播业务在5G网络架构下提供服务。
本发明的示例性实施例中，所述方法还包括：
向第二网络功能发送第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
接收所述第二网络功能的第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
本发明的示例性实施例中，所述请求包括以下任一种：
多播会话建立请求；
用于请求加入多播组的第一数据报文；
单播会话建立请求。
本发明的示例性实施例中，所述第一调用参数包括所述终端的用户标识和所述多播业务信息。
本发明的示例性实施例中，所述多播业务信息包括以下至少一种：多播地址、多播组标识、用于指示多播会话的第一指示信息。
本发明的示例性实施例中，所述请求可以通过信令路径送达所述第一网络功能；或
所述请求可以通过用户面路径送达所述第一网络功能。
本发明的示例性实施例中，所述第一调用结果还可以包括以下至少一种：
指示用户是否在多播业务组中的第二指示信息；
失败原因。
本发明的示例性实施例中，所述方法还包括：
向所述终端发送所述失败原因和/或所述第二指示信息。在向终端发送失败原因后，可以使得终端获知失败原因。
在本发明实施例中，第一网络功能可以为AMF或者SMF。
在本发明实施例中，终端和终端用户为不同的概念。终端用户可以理解为终端的所有者、终端的用户。
本发明实施例提供了一种多播业务实现方法，应用于通信设备的第二网络功能，如图2所示，包括：
步骤21：接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
步骤22：向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
本发明的示例性实施例中，所述方法还可以包括：
向第三网络功能发送第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
接收第三网络功能的第二调用结果，所述第二调用结果指示发生错误。
本发明的示例性实施例中，所述第二参数还可以包括所述终端的用户标 识和多播业务信息。所述多播业务信息包括以下至少一种：多播地址、多播组标识、用于指示多播会话的第一指示信息。
本发明的示例性实施例中，所述第二调用结果可以包括以下至少一种：
指示用户在多播业务组中或不在多播业务组中的第三指示信息；
多播业务组的组标识；
失败原因。
第二网络功能可以将失败原因发给第一网络功能，以便第一网络功能获知失败原因。
在本发明实施例中，第二网络功能可以为广播多播会话功能(Multicast Broadcast Session Management，MBSF)；或者为AMF和MBSF；或者为SMF和MBSF。
本发明实施例提供了一种多播业务实现方法，应用于通信设备的第三网络功能，如图3所示，包括：
步骤31：接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
步骤32：向所述第二网络功能返回第二调用结果，所述第二调用结果指示发生错误。
本发明的示例性实施例中，向所述第二网络功能返回第二调用结果包括以下任一种：
基于第二参数中终端的用户标识和多播业务信息向所述第二网络功能返回第二调用结果；或
接收第四网络功能的事件操作信息，向所述第四网络功能发送决策请求，接收所述第四网络功能的第三结果，所述第三结果指示发生错误。
在本发明实施例中，所述第三网络功能可以为广播多播策略控制功能(Multicast Broadcast Policy Control Function，MBPCF)。
本发明实施例提供了一种多播业务实现方法，应用于终端，如图4所示，包括：
步骤41：向第一网络功能发送携带多播业务信息的请求；
步骤42：执行单播会话建立过程。
本发明的示例性实施例中，所述请求包括以下任一种：
多播会话建立请求；
用于请求加入多播组的第一数据报文；
单播会话建立请求。
本发明的示例性实施例中，所述执行单播会话建立过程包括以下任一种：
接收建立单播会话连接的通知；
发起建立单播会话连接；
完成单播会话建立过程。
本发明的示例性实施例中，所述请求可以通过信令路径送达所述第一网络功能；或
所述请求可以通过用户面路径送达所述第一网络功能。
本发明的示例性实施例中，所述方法还包括接收所述第一网络功能的以下至少一种信息；
指示用户是否在多播业务组中的第二指示信息；
失败原因。
在终端接收到失败原因后，可以获知失败原因。
在本发明实施例中，终端和终端用户为不同的概念。终端用户可以理解为终端的所有者、终端的用户。
图5所示为本发明实施例多播业务架构示意图，如图5所示，其中，接口R101用于终端(User Equipment，UE)和接入管理功能(Access Management Function，AMF)间信令交互。接口R102用于终端和无线接入系统(Radio Access Network，RAN)，也就是基站系统间信令和数据交互。接口R103用于无线接入系统与AMF间信令交互。接口R104用于用户面功能(User Plan Function，UPF)与会话管理功能(Session Management Function，SMF)间控制信令交互。接口R105用于多播广播用户面功能(Multicast Broadcast User plan Function，MBUF)间控制信令交互。服务化调用S106为AMF开放出来供其他网络功能(Network Function，NF)调用的各种接入管理相关的服务。服务化调用S107为SMF开放出来供其他NF调用的各种会话管理相关的服务。服务化调用S108为广播多播策略控制功能(Multicast Broadcast Policy  Control Function，MBPCF)开放出来供其他NF调用的各种广播多播策略控制相关的服务。服务化调用S109为广播多播会话功能(Multicast Broadcast Session Management，MBSF)开放出来供其他NF调用的各种广播多播会话管理相关的服务。
本发明一具体实施例中，第一网络功能可以根据终端的用户请求将多播业务转变为单播发送方式，如图6所示，本实施例包括以下步骤：
步骤201：终端发现广播信号变差，希望仍旧接收相关数据内容；
步骤202：终端向SMF发送单播会话建立请求，比如发送PDU Session Establishment Request消息，其中，携带多播业务信息，比如多播地址(Multicast IP)，或多播组标识(Temporary Mobile Group Identifier，TMGI)，或用于指示建立多播会话的指示信息；
步骤203：SMF向服务于多播业务信息指示的多播业务的MBSF调用多播上下文用户离开服务操作，比如调用Nmbsf_MBContext_UserDelete操作，参数包含用户标识(比如国际移动用户识别码(International Mobile Subscriber Identity，IMSI))和多播业务信息；
步骤204：MBSF调用MBPCF的用户离开授权服务操作，比如Nmbpcf_PolicyAuthorization_UserDelete操作，参数包含用户标识和多播业务信息；
步骤205：可选的，MBPCF通知多播业务相对应的应用，告知有用户离开多播组，通知消息中包含第二用户标识(比如IMSI或由IMSI查询到的通用公共用户标识符——General Public Subscriber Identifier，简称GPSI)；
步骤206：MBPCF判断用户在相应的多播组中，将其从相应的组中删除，或MBPCF接收到应用返回结果，指示用户在多播业务组中，可选的，MBPCF向MBSF返回结果，可以携带组标识，比如临时移动组标识(Temporary Mobile Group Identity，TMGI)，还可携带指示用户在组中或不在组中的指示信息；
步骤207：可选的，MBSF向SMF返回调用结果，可包含指示用户在组中或不在组中的指示信息；
步骤208：步骤202之后，SMF执行单播会话建立过程，即PDU Session Establishment过程，或者步骤207之后，SMF执行单播会话建立过程，即PDU  Session Establishment过程，并在发给终端的单播会话建立完成消息(比如PDU Session Establishment Accept)中携带步骤207中的指示信息。
本实施例中，第一网络功能为SMF，第二网络功能为MBSF，第二网络功能还可以为SMF和MBSF合设，此时步骤203和步骤207为内部操作。
本发明另一具体实施例中，第一网络功能根据终端的用户请求将多播业务转变为单播发送方式，如图7所示，本实施例包括以下步骤：
步骤301：终端对某个多播业务感兴趣，比如通过APP与内容提供方的应用服务器交互，或者通过无线广播信息获得；
步骤302：终端向SMF发送多播会话建立请求，比如发送MB Session Establishment Request消息，其中，携带多播业务信息，比如多播地址(Multicast IP)，或多播组标识(Temporary Mobile Group Identifier，TMGI)，或用于指示建立多播会话的指示信息，同时还携带建立单播会话所需信息；
也可以是单播会话建立请求(比如PDU Session Establishment Request消息)中携带多播业务信息表示多播会话建立请求；
步骤303：SMF调用MBSF的多播上下文用户加入服务操作，比如调用Nmbsf_MBContext_UserAdd操作，参数包含用户标识(比如IMSI)和多播业务信息；
步骤304：MBSF调用MBPCF的用户加入授权服务操作，比如Nmbpcf_PolicyAuthorization_UserAdd操作，参数包含用户标识和多播业务信息；
步骤305：可选的，MBPCF通知多播业务相对应的应用，告知有用户加入多播组，通知消息中包含第二用户标识(比如IMSI或由IMSI查询到的GPSI)；
步骤306：MBPCF判断用户允许接收相应的多播组数据，但组内用户数太少，仅允许使用单播方式，或MBPCF接收到应用的返回结果，指示仅允许使用单播方式，MBPCF向MBSF返回结果指示允许建立单播，可以携带组标识，比如TMGI，还可携带原因信息，比如用户数太少；
步骤307：MBSF向SMF返回调用结果指示允许建立单播，可包含原因信息；
步骤308：SMF按照执行单播会话建立过程，即PDU Session Establishment过程，并可以在发给终端的单播会话建立完成消息(比如PDU Session Establishment Accept)中携带步骤307中的原因信息。
本实施例中，第一网络功能为SMF，第二网络功能为MBSF，第二网络功能还可以为SMF和MBSF合设，此时步骤303和步骤307为内部操作。
本发明另一具体实施例中，第一网络功能根据终端的用户请求将多播业务转变为单播发送方式，如图8所示，本实施例包括以下步骤：
步骤401：终端对某个多播业务感兴趣，比如通过APP与内容提供方的应用服务器交互，或者通过无线广播信息获得；
步骤402：终端通过用户面发送IP报文，使用组播协议中的加入组播消息，比如互联网组管理协议(Internet Group Management Protocol，IGMP)Joint消息或组播侦听发现(Multicast Listener Discover，MLD)消息，其中IP报文的源地址为终端的IP地址，目标地址为多播组地址，即Multicast IP地址；
步骤403：UPF向SMF通知数据到达，转发截获的IP报文；
步骤404：SMF调用MBSF的多播上下文用户加入服务操作，比如调用Nmbsf_MBContext_UserAdd操作，参数包含用户标识(比如IMSI)和多播业务信息；
步骤405：MBSF调用MBPCF的用户加入授权服务操作，比如Nmbpcf_PolicyAuthorization_UserAdd操作，参数包含用户标识和多播业务信息；
步骤406：可选的，MBPCF通知多播业务相对应的应用，告知有用户加入多播组，通知消息中包含第二用户标识(比如IMSI或由IMSI查询到的GPSI)；
步骤407：MBPCF判断用户允许接收相应的多播组数据，但组内用户数太少，仅允许使用单播方式，或MBPCF接收到应用的返回结果，指示仅允许使用单播方式，MBPCF向MBSF返回结果指示允许建立单播，可以携带组标识，比如TMGI，还可携带原因信息，比如用户数太少；
步骤408：MBSF向SMF返回调用结果指示允许建立单播，可包含原因 信息，也可直接包含发送给终端的通知建立单播连接的消息，比如Initiate PDU Session Establishment Notification，消息中可包含原因信息；
步骤409：SMF发送通知终端建立单播连接的消息，比如发送Initiate PDU Session Establishment Notification，也可以转发收到的来自MBSF的通知终端建立单播连接的消息；
步骤410：终端执行单播会话建立过程，即PDU Session Establishment过程，并可在发给终端的单播会话建立完成消息(比如PDU Session Establishment Accept)中携带步骤408中的原因信息。
本实施例中，第一网络功能为SMF，第二网络功能为MBSF，第二网络功能还可以为SMF和MBSF合设，此时步骤404和步骤408为内部操作。
上述实施例对本发明的多播业务实现方法进行了说明，下面将结合实施例和附图对与本发明的多播业务实现方法对应的通信设备进行说明。
请参见图9，图9是本发明实施例提供的一种多播业务实现装置的结构示意图，该多播业务实现装置应用于通信设备的第一网络功能。如图9所示，该多播业务实现装置50包括：
第一接收模块51，用于接收终端的携带多播业务信息的请求；
第一执行模块52，用于执行单播会话建立过程，与所述终端建立单播会话连接。
本实施例中，第一网络功能50能够实现本发明图1所示方法实施例中实现的各个过程，以及达到相同的有益效果，为避免重复，这里不再赘述。
请参见图10，图10是本发明实施例提供的一种多播业务实现装置的结构示意图，该多播业务实现装置应用于通信设备的第二网络功能。如图10所示，多播业务实现装置60包括：
第二接收模块61，用于接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
第一发送模块62，用于向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
本实施例中，第二网络功能60能够实现本发明图2所示方法实施例中实现的各个过程，以及达到相同的有益效果，为避免重复，这里不再赘述。
请参见图11，图11是本发明实施例提供的一种多播业务实现装置的结构示意图，该多播业务实现装置应用于通信设备的第三网络功能。如图11所示，多播业务实现装置70包括：
第三接收模块71，用于接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
第二发送模块72，用于向所述第二网络功能返回第二调用结果，所述第二调用结果指示发生错误。
本实施例中，第二网络功能70能够实现本发明图3所示方法实施例中实现的各个过程，以及达到相同的有益效果，为避免重复，这里不再赘述。
请参见图12，图12是本发明实施例提供的一种通信设备的结构示意图，该通信设备为终端。如图12所示，终端80包括：
第三发送模块81，用于向第一网络功能发送携带多播业务信息的请求；
第二执行模块82，用于执行单播会话建立过程。
本实施例中，终端80能够实现本发明图4所示方法实施例中实现的各个过程，以及达到相同的有益效果，为避免重复，这里不再赘述。
参见图13，图13是本发明实施例提供的另一种通信设备的结构示意图，如图13所示，通信设备90包括：处理器91、存储器92及存储在所述存储器92上并可在所述处理器上运行的计算机程序，通信设备90中的各个组件通过总线接口93耦合在一起，所述计算机程序被所述处理器91执行时可实现上述图1所示方法实施例中实现的各个过程，或者，实现上述图2所示方法实施例中实现的各个过程，或者，实现上述图3所示方法实施例中实现的各个过程，或者，实现上述图4所示方法实施例中实现的各个过程，或者，实现上述图6所示方法实施例中实现的各个过程，或者，实现上述图7所示方法实施例中实现的各个过程，或者，实现上述图8所示方法实施例中实现的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述图1所示方法实施例中实现的各个过程，或者，实现上述图2所示方法实施例中实现的各个过程，或者，实现上述图3所示方法实施例中实现的各个过程，或者， 实现上述图4所示方法实施例中实现的各个过程，或者，实现上述图6所示方法实施例中实现的各个过程，或者，实现上述图7所示方法实施例中实现的各个过程，或者，实现上述图8所示方法实施例中实现的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用 时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络侧设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外，需要指出的是，在本发明的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本发明的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行，某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言，能够理解本发明的方法和装置的全部或者任何步骤或者部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本发明的说明的情况下运用他们的基本编程技能就能实现的。
因此，本发明的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本发明的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说，这样的程序产品也构成本发明，并且存储有这样的程序产品的存储介质也构成本发明。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是，在本发明的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本发明的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上所述的是本发明的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本发明所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本发明的保护范围内。

Claims (27)

  1. 一种多播业务实现方法，应用于通信设备的第一网络功能，包括：
    接收终端的携带多播业务信息的请求；
    执行单播会话建立过程，与所述终端建立单播会话连接。
  2. 根据权利要求1所述的多播业务实现方法，还包括：
    向第二网络功能发送第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
    接收所述第二网络功能的第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
  3. 根据权利要求2所述的多播业务实现方法，其中，所述第一调用参数包括所述终端的用户标识和所述多播业务信息。
  4. 根据权利要求1所述的方法，其中，所述请求包括以下任一种：
    多播会话建立请求；
    用于请求加入多播组的第一数据报文；
    单播会话建立请求。
  5. 根据权利要求1所述的多播业务实现方法，其中，所述多播业务信息包括以下至少一种：多播地址、多播组标识、用于指示多播会话的第一指示信息。
  6. 根据权利要求1所述的多播业务实现方法，其中，
    所述请求通过信令路径送达所述第一网络功能；或
    所述请求通过用户面路径送达所述第一网络功能。
  7. 根据权利要求2所述的多播业务实现方法，其中，所述第一调用结果还包括以下至少一种：
    指示用户是否在多播业务组中的第二指示信息；
    失败原因。
  8. 根据权利要求7所述的多播业务实现方法，还包括：
    向所述终端发送所述失败原因和/或所述第二指示信息。
  9. 一种多播业务实现方法，应用于通信设备的第二网络功能，包括：
    接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
    向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
  10. 根据权利要求9所述的多播业务实现方法，还包括：
    向第三网络功能发送第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
    接收第三网络功能的第二调用结果，所述第二调用结果指示发生错误。
  11. 根据权利要求10所述的多播业务实现方法，其中，所述第二调用参数包括终端的用户标识和多播业务信息。
  12. 根据权利要求10所述的多播业务实现方法，其中，所述第二调用结果包括以下至少一种：
    指示用户在多播业务组中或不在多播业务组中的第三指示信息；
    多播业务组的组标识；
    失败原因。
  13. 一种多播业务实现方法，应用于通信设备的第三网络功能，包括：
    接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
    向所述第二网络功能返回第二调用结果，所述第二调用结果指示发生错误。
  14. 根据权利要求13所述的多播业务实现方法，其中，向所述第二网络功能返回第二调用结果包括以下任一种：
    基于第二参数中终端的用户标识和多播业务信息向所述第二网络功能返回第二调用结果；或
    接收第四网络功能的事件操作信息，向所述第四网络功能发送决策请求，接收所述第四网络功能的第三结果，所述第三结果指示发生错误。
  15. 一种多播业务实现方法，应用于终端，包括：
    向第一网络功能发送携带多播业务信息的请求；
    执行单播会话建立过程。
  16. 根据权利要求15所述的方法，其中，所述请求包括以下任一种：
    多播会话建立请求；
    用于请求加入多播组的第一数据报文；
    单播会话建立请求。
  17. 根据权利要求15所述的多播业务实现方法，其中，所述执行单播会话建立过程包括以下任一种：
    接收建立单播会话连接的通知；
    发起建立单播会话连接；
    完成单播会话建立过程。
  18. 根据权利要求15所述的多播业务实现方法，其中，
    所述请求通过信令路径送达所述第一网络功能；或
    所述请求通过用户面路径送达所述第一网络功能。
  19. 根据权利要求15所述的多播业务实现方法，还包括接收所述第一网络功能的以下至少一种信息；
    指示用户是否在多播业务组中的第二指示信息；
    失败原因。
  20. 一种多播业务实现装置，应用于通信设备的第一网络功能，包括：
    第一接收模块，用于接收终端的携带多播业务信息的请求；
    第一执行模块，用于执行单播会话建立过程，与所述终端建立单播会话连接。
  21. 一种多播业务实现装置，应用于通信设备的第二网络功能，包括：
    第二接收模块，用于接收第一网络功能的第一调用参数，其中，所述第一调用参数用于调用所述第二网络功能的多播会话上下文服务操作；
    第一发送模块，用于向所述第一网络功能发送第一调用结果，所述第一调用结果指示建立多播会话连接发生失败。
  22. 一种多播业务实现装置，应用于通信设备的第三网络功能，包括：
    第三接收模块，用于接收第二网络功能的第二调用参数，其中，所述第二调用参数用于调用所述第三网络功能的授权服务操作；
    第二发送模块，用于向所述第二网络功能返回第二调用结果，所述第二 调用结果指示发生错误。
  23. 一种多播业务实现装置，应用于终端，包括：
    第三发送模块，用于向第一网络功能发送携带多播业务信息的请求；
    第二执行模块，用于执行单播会话建立过程。
  24. 一种通信设备，包括处理器、存储器以及存储于所述存储器上并在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1至19任一项所述的多播业务实现方法的步骤。
  25. 一种计算机可读存储介质，上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至19中任一项所述的多播业务实现方法的步骤。
  26. 一种计算机程序产品，其中，所述计算机程序产品被存储在非易失的存储介质中，所述程序产品被配置成被至少一个处理器执行以实现如权利要求1至19中任一项所述的多播业务实现方法的步骤。
  27. 一种多播用户操作的通知装置，其中，包括所述装置被配置成用于执行如权利要求1至19中任一项所述的多播业务实现方法的步骤。
PCT/CN2020/141890 2020-01-02 2020-12-31 多播业务实现方法及装置、通信设备 WO2021136467A1 (zh)

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