CN116847298A

CN116847298A - Multicast service processing method, device and readable storage medium

Info

Publication number: CN116847298A
Application number: CN202210303762.3A
Authority: CN
Inventors: 谢振华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2023-10-03

Abstract

The application discloses a multicast service processing method, equipment and a readable storage medium, belonging to the technical field of communication, wherein the method comprises the following steps: the first network function receives first indication information and multicast-related information from the second network function; the first network function sends the first indication information and the multicast-related information to a third network function; the first indication information is used for indicating a target AF, and the target AF is an AF for providing multicast service.

Description

Multicast service processing method, device and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a multicast service processing method, a device and a readable storage medium.

Background

In the prior art, multicast service data transmission between a network side and an application function (Application Function, AF) is triggered by a terminal side multicast service, that is, data transmission between the corresponding network side and AF is triggered only when the terminal side multicast service occurs.

Disclosure of Invention

The embodiment of the application provides a multicast service processing method, a device and a readable storage medium, which can solve the problem of how to realize the transmission of multicast service data between network side triggering and AF.

In a first aspect, a method for processing multicast service is provided, including:

the first network function receives first indication information and multicast-related information from the second network function;

the first network function sends the first indication information and the multicast-related information to a third network function;

the first indication information is used for indicating a target AF, and the target AF is an AF for providing multicast service.

In a second aspect, a multicast service processing method is provided, including at least one of the following:

the SMF receives multicast related information from a second network function, and the SMF sends downlink data flow rule information to a terminal according to the multicast related information; or alternatively, the process may be performed,

the SMF receives first indication information from a second network function;

In a third aspect, a method for processing multicast service is provided, where the method includes:

the SMF performs a PDU session establishment procedure for the terminal user and transmits address information of the terminal to the second network function.

In a fourth aspect, a multicast service processing method is provided, the method including at least one of:

The SMF receives multicast related information from the second network function, and the SMF sends downlink data flow rule information to the terminal according to the multicast related information;

the SMF receives first indication information from the second network function;

In a fifth aspect, there is provided a multicast service processing method, the method including:

the terminal receives downlink data flow rule information from a first network function, wherein the downlink data flow rule information comprises multicast related information;

the terminal performs address and/or port conversion operations for the data stream matched with the data stream rule information.

In a sixth aspect, there is provided a multicast service processing apparatus, including:

a first receiving module, configured to receive first indication information of an application function and multicast-related information from a second network function;

a first sending module, configured to send the first indication information and the multicast-related information to a third network function;

In a seventh aspect, there is provided a multicast service processing apparatus, including:

and the second receiving module is used for executing a PDU session establishment process for the terminal user and sending the address information of the terminal to the second network function.

An eighth aspect provides a multicast service processing apparatus, including:

a third receiving module for one or more of:

receiving multicast related information from a second network function, and sending downlink data flow rule information to the terminal according to the multicast related information;

receiving first indication information from a second network function;

A ninth aspect provides a multicast service processing apparatus, the apparatus:

a fourth receiving module for one or more of:

receiving first indication information from a first network function, and sending second indication information to the first network function according to the first indication information, wherein the second indication information is used for indicating MB-SMF;

receiving first indication information from MB-SMF, and sending the second indication information to a first network function based on the first indication information;

In a tenth aspect, there is provided a multicast service processing apparatus, the apparatus comprising:

a fifth receiving module, configured to receive downstream rule information from a first network function, where the downstream rule information includes multicast-related information;

and the execution module is used for executing address and/or port conversion operation on the data stream matched with the data stream rule information.

In an eleventh aspect, there is provided a network side device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the method according to the first aspect, or implementing the steps of the method according to the second aspect, or implementing the steps of the method according to the third aspect, or implementing the steps of the method according to the fourth aspect.

In a twelfth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to:

Or the communication interface is used for: at least one of the following:

Or the communication interface is used for:

the SMF receives first indication information from the second network function;

Or the communication interface is used for at least one of the following:

the NRF receives first indication information from a first network function, and sends second indication information to the first network function according to the first indication information, wherein the second indication information is used for indicating MB-SMF;

the NRF receives first indication information from MB-SMF and is used for sending the second indication information to a first network function based on the first indication information;

In an eleventh aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the fourth aspect.

In a twelfth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to receive, by the terminal, downstream rule information from a first network function, where the downstream rule information includes multicast-related information, and the processor is configured to perform an address and/or port conversion operation for a data stream matched with the downstream rule information by the terminal.

In a thirteenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method as described in the first aspect, or performs the steps of the method as described in the second aspect, or performs the steps of the method as described in the third aspect, or performs the steps of the method as described in the fourth aspect.

In a fourteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being adapted to run a program or instructions, to carry out the steps of the method according to the first aspect, or to carry out the steps of the method according to the second aspect, or to carry out the steps of the method according to the third aspect, or to carry out the steps of the method according to the fourth aspect.

In a fifteenth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to perform the steps of the method as described in the first aspect, or to perform the steps of the method as described in the second aspect, or to perform the steps of the method as described in the third aspect, or to perform the steps of the method as described in the fourth aspect.

In the embodiment of the application, the first network function receives the AF information and the multicast related information from the second network function and sends the AF information and the multicast related information to the MB-SMF, thereby realizing the multicast service data transmission between the AF and the network side, namely realizing the independence of the multicast service data transmission between the network side and the AF and the multicast service of the terminal.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a multicast service processing method according to an embodiment of the present application;

fig. 3 is a second flowchart of a multicast service processing method according to an embodiment of the present application;

fig. 4 is a third flow chart of a multicast service processing method according to an embodiment of the present application;

fig. 5 is a flow chart of a multicast service processing method according to an embodiment of the present application;

FIG. 6a is a schematic diagram of an application flow provided in an embodiment of the present application;

FIG. 6b is a second embodiment of an application flow chart according to the present application;

FIG. 6c is a third embodiment of an application flow chart according to the present application;

FIG. 6d is a schematic diagram of an application flow provided by an embodiment of the present application;

FIG. 6e is a fifth embodiment of an application flow diagram;

fig. 7 is a schematic structural diagram of a multicast service processing device according to an embodiment of the present application;

fig. 8 is a second schematic structural diagram of a multicast service processing apparatus according to an embodiment of the present application;

fig. 9 is a third schematic structural diagram of a multicast service processing apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a multicast service processing device according to an embodiment of the present application;

Fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a network side device according to an embodiment of the present application;

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

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and" indicates at least one of the connected objects, and the character "/" generally indicates that the associated object is an "or" relationship.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The multicast service processing method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present application provides a multicast service processing method, including:

step 201: the first network function receives first indication information and multicast-related information from the second network function;

step 202: the first network function sends first indication information and multicast related information to a third network function;

the first indication information is used for indicating a target AF, wherein the target AF is an AF providing multicast service, and for example, AF information is used for multicast session management functions (Multicast and Broadcast-Session Management Function, MB-SMF) to indicate to NRF that the MB-SMF serves the AF corresponding to the AF information.

Optionally, the first indication information is AF information, and the third network function is MB-SMF.

In some embodiments, the first network function and the second network satisfy any one of:

(1) In the case where the first network function is SMF, the second network function is PCF, or NEF;

(2) In the case that the first network function is PCF, the second network function is NEF, or AF;

(3) In case the first network function is NEF, the second network function is AF.

In the embodiment of the application, the first network function receives the AF information and the multicast related information from the second network function and sends the AF information and the multicast related information to the MB-SMF, thereby realizing that the multicast service data transmission between the network side and the AF is irrelevant to the multicast service.

It should be noted that, before executing the multicast service data transmission according to the embodiment of the present application, the multicast service data transmission channel triggered by the network side may be executed first, and the multicast service data transmission is performed through the multicast service data transmission channel.

The AF information may specifically be an AF ID;

in one possible implementation, before the first network function sends the AF information and the multicast-related information to the MB-SMF, the method further includes:

(1) The first network function sends AF information and multicast related information to the NRF;

(2) The first network function receives second indication information from the NRF, the second indication information being used to indicate the MB-SMF. Optionally, the second indication information is information of MB-SMF,

in the embodiment of the application, the first network function acquires the MB-SMF information from the NRF through the AF information and the multicast related information, and the first network is based on the MB-SMF information to execute the subsequent operation of sending the AF information and the multicast related information to the MB-SMF.

In one possible embodiment, the method further comprises:

and the first network function sends the downlink data flow rule information to the terminal according to the multicast related information.

Optionally, the above-described operation steps are performed in a case where the first network function is SMF.

Further, the downstream rule information includes multicast-related information, and the downstream rule information is used for the terminal to perform address and/or port conversion operations for the data stream matched with the downstream rule information.

In one possible embodiment, the method further comprises:

the first network function performs a PDU session establishment procedure for the terminal user and transmits address information of the terminal to the second network function.

In one possible embodiment, the method further comprises:

the first network function performs the sending of address information of the terminal to the second network function based on one or more of:

network dynamic charging deployment condition, subscription information of terminal users.

In one possible implementation, the multicast-related information includes one or more of the following:

(1) A multicast identification;

(2) Multicast address information;

(3) The multicast application identifier has a mapping relationship with one or more of the multicast identifier and the multicast address information.

In one possible embodiment, the method further comprises:

the first network function receives unicast message filtering information or unicast stream description information from the second network function, and the unicast message filtering information or the unicast stream description information is associated with multicast related information;

the unicast message filtering information or the unicast stream description information is used for transmitting content data related to the multicast data when a shared transmission channel for transmitting the multicast data to the terminal cannot be established.

Referring to fig. 3, an embodiment of the present application provides a multicast service processing method, including:

step 301: the SMF performs a PDU session establishment procedure for the terminal user and transmits address information of the terminal to the second network function.

In one possible embodiment, the method further comprises:

the SMF performs sending address information of the terminal to the second network function based on one or more of:

network dynamic charging deployment condition, subscription information of the terminal user.

In one possible embodiment, the method further comprises one or more of the following:

(1) The SMF receives the multicast related information from the second network function, and the SMF sends downlink data flow rule information to the terminal according to the multicast related information;

(2) The SMF receives AF information from the second network function;

wherein the AF information is used for the SMF to request the NRF for the MB-SMF serving the AF corresponding to the AF information.

In one possible embodiment, the method further comprises:

the SMF transmits AF information and multicast related information to the NRF;

the SMF receives the information of the MB-SMF from the NRF;

the SMF transmits AF information and multicast-related information to the MB-SMF.

a multicast identification;

multicast address information;

and the multicast application identifier has a mapping relation with one or more of the multicast identifier and the multicast address information.

In one possible embodiment, the method further comprises:

the SMF receives unicast message filtering information or unicast stream description information from the second network function, and the unicast message filtering information or the unicast stream description information is associated with multicast related information;

The embodiment of the application provides a multicast service processing method, which comprises at least one of the following steps:

the SMF receives first indication information from the second network function;

In a possible implementation manner, the first indication information is AF information, the third network function is MB-SMF, and the method further includes:

the SMF transmitting the AF information and the multicast-related information to the NRF;

the SMF receives information of MB-SMF from the NRF;

the SMF transmits the AF information and the multicast-related information to the MB-SMF.

In one possible implementation, before the SMF receives the multicast-related information from the second network function, the method further includes:

the SMF performs a PDU session establishment procedure for a terminal user and transmits address information of the terminal to the second network function.

In one possible embodiment, the method further comprises:

the SMF performs the address information of the transmitting terminal to the second network function based on one or more of:

a multicast identification;

multicast address information;

In one possible embodiment, the method further comprises:

the SMF receives unicast message filtering information or unicast stream description information from a second network function, wherein the unicast message filtering information or the unicast stream description information is associated with the multicast related information;

Referring to fig. 4, an embodiment of the present application provides a multicast service processing method, including:

step 401: the NRF receives first indication information from the first network function, and sends MB-SMF information to the first network function according to the first indication information;

and/or the NRF receives AF information from the MB-SMF and is used for sending second indicating information to the first network function based on the AF information, wherein the second indicating information is used for indicating the MB-SMF;

The AF information is used for indicating to the NRF that the MB-SMF serves AF corresponding to the AF information.

In one possible embodiment, the method further comprises at least one of:

(1) The NRF receives multicast related information from the first network function, and the NRF also sends MB-SMF information to the first network function according to the multicast related information;

(2) The NRF receives multicast-related information from the MB-SMF, and performs transmission of the information of the MB-SMF to the first network function based on the multicast-related information.

(1) A multicast identification;

(2) Multicast address information;

(3) And the multicast application identifier has a mapping relation with one or more items of the multicast identifier and the multicast address information.

Referring to fig. 5, an embodiment of the present application provides a multicast service processing method, including:

step 501: the terminal receives downlink data flow rule information from a first network function, wherein the downlink data flow rule information comprises multicast related information;

step 502: and the terminal performs address and/or port conversion operation on the data stream matched with the data stream rule information.

(1) A multicast identification;

(2) Multicast address information;

The technical scheme of the application is described below with reference to specific implementation examples:

example one: referring to FIG. 6a, the overall procedure for AF-triggered MBS session management is shown, comprising the following flow:

the ue has established an associated PDU session for the MBS. During the PDU session establishment procedure, the UE indicates MBS capabilities to the SMF.

1. When the AF needs to send MBS data using a tunnel, the AF manages a tunnel between the AF and the 5GC, which is not for each MBS session. This step may be performed before step 2 or after step 2.

2. The content provider may use portal publishing services that may be dynamically published, e.g., real-time streaming scheduled by real-time streaming media, real-time interviews of breaking news, etc. The user may access the portal through an application in the UE and request the contents of the MBS service, which may be an interactive MBS service, i.e., including multicast service data and unicast service data.

AF interacts with 5GC to manage MBS AF sessions for UE.

4.5GC manages MBS UE sessions towards the UE.

Example two: referring to fig. 6b, the AF trigger MBS session management procedure in the presence of PCC in the network is shown, comprising the following flow:

1. the content provider may use portal publishing services that may be dynamically published, e.g., real-time streaming scheduled by real-time streaming media, real-time interviews of breaking news, etc. The user may access the portal through an application in the UE, request the content of the MBS service or stop the content of the MBS service, and may be an interactive MBS service, i.e., contain multicast service data and unicast service data. The application sends the UE address and UDP port for receiving multicast data to the AF.

The AF may execute MBS 5GC-AF connection manager to create or delete connection resources between the AF and some MB UPFs.

Note that: if the UE has multiple PDU sessions, the urs in the UE need to ensure that the application uses the associated PDU session for unicast traffic delivery.

2-5. The steps are the same as the existing flow, but differ from the following:

the names of the service operations disclosed by the NEF are different and the flow description (if included) includes some packet filters, including IP multicast addresses, to indicate that the data of the unicast flow can be sent alternately by multicast (in case of using unicast transmission, the network can know that it is used for multicast services).

The flow description sent to the PCF includes some packet filters, including IP multicast addresses.

If the AF is in the trust domain, the AF may directly perform steps 3, 5 and 16.

The pcf invokes policy update notifications to the SMF, including AF ID, SSM, and multicast flow information, and may include unicast QoS information.

7. If the pure unicast QoS information of the MBS session (without an alternative multicast stream) is modified (i.e., added, updated or removed), the SMF may initiate a PDU session modification procedure to update the unicast QoS stream.

8. For multicast stream creation, the SMF obtains MBS subscription data from the UDM to verify if the UE is allowed to join any MBS session (if the UE does not support MBS, defaults to no, the user explicitly indicates that the way to change subscription is out of range). If the authorization fails, please go to step 16, the smf indicates the cause value to the PCF. The AF may use unicast transmission for multicast data transmission. The use of unicast transmissions is why the network may use a charging policy for unicast transmissions of traffic other than multicast transmissions, and the user may be informed of charging differences (out of range) so the user may decide whether to continue.

9. If a multicast stream for an MBS session is created and the SMF does not know the MB-SMF serving the MBS session, the SMF will find the MB-SMF with SSM from the NRF, which will return the information of the MB-SMF serving the SSM. If the MB-SMF information is not returned, the SMF finds the MB-SMF with the AF ID from the NRF, which returns the MB-SMF information of the server AF. The SMF selects MB-SMF based on the UE location information.

10. In case the multicast stream is removed and the UE served by the SMF does not receive data of the MBS session, the SMF invokes an MBS session context state unsubscribe (TMGI) to the MB-SMF serving the TMGI, otherwise, if the SMF does not have a context of the MBS session, the SMF invokes an MBS session context state subscription (AF ID, SSM, multicast stream information) to the selected MB-SMF.

11. If the MBS session context state is invoked and no SMF maintains subscription to the MBS session context state, the MB-SMF will de-allocate the associated TMGI and de-register the AF ID, SSM and associated TMGI from the NRF, otherwise if the MBS session context state is invoked and the MB-SMF has not created context for the MBS session, the MB-SMF will allocate one TMGI and register the AF ID, SSM and TMGI to the NRF.

12. For subscription, if the MB-SMF does not have multicast QoS information for the MBS session, the MB-SMF interacts with the MB-PCF to create an association with the MB-PCF and uses the multicast flow information to query the multicast QoS information for the MBS session. For unsubscribe, if the MB-SMF is no longer serving the MBs session (i.e., all SMFs unsubscribe to the MBs session context state), the MB-SMF will interact with the MB-PCF to delete the association with the MB-PCF.

13. For subscription, the MB-SMF interacts with the MB-UPF to reserve resources for multicast service data when needed. For unsubscribing, if no longer needed, the MB-SMF will interact with the MB-UPF to release the resources of the multicast service data.

The MB-SMF responds to the SMF, which returns multicast QoS information and TMGI for subscription.

15. For multicast QoS information creation, the existing flow is performed, but with the following differences:

step 5 is Namf communication n1n2messagetransfer. If the UE supports MBS, the SMF includes only QoS rules of DL in the N1 message container in step 5. The DL-only QoS rules may be used by the UE to transmit the IP multicast address in the received data packet to the UE address and to transmit the target UDP port in the received data packet to the UE UDP port.

If the UE does not support MBS, the SMF does not include MBS session related information in the N2 SM info sent to the NG-RAN (i.e. separate delivery is selected) and instructs the UPF to perform NATP on the incoming multicast data of the MBS session towards the UE as described above.

-if unicast QoS parameters are received in step 6, the SMF also updates the unicast QoS flow during PDU session modification.

For multicast QoS information deletion, the existing procedure is performed, but the following differences are found:

Step 7 is Namf communication N1N2message transfer, and if a unicast QoS flow needs to be updated, the SMF also updates the unicast QoS flow during PDU session modification.

16.The SMF notifies the PCF.

17.The PCF Notifies the NEF with cause value related to MBS.

18.The NEF notifies the AF with the cause value.If the PCF does not support MBS(i.e.no corresponding cause value indicated),the corresponding unicast QoS flow will be established,the AF can use unicast transport for the multicast data delivery.

Smf informs PCF.

Pcf informs NEF of the cause value associated with MBS.

The nef informs the AF with a cause value. If the PCF does not support MBS (i.e., does not indicate the corresponding cause value), then the corresponding unicast QoS flow will be established and the AF may use unicast transmission for multicast data transfer. This is why the network uses unicast transmissions, the network can use a charging policy for unicast transmissions of the same traffic as multicast transmissions, the user does not need to be notified, as there is no charging difference.

Example three: referring to fig. 6c, which shows an AF-triggered MBS session management procedure without PCC in the network, similar to example two, except that the PCF performs an interaction with NRF and MB-SMF, so the PCF sends the SMF the QoS parameters related to the multicast flow and optionally the QoS parameters related to the unicast flow, comprising the following procedures:

0. after the PDU session establishment procedure, the SMF creates an SMF-NEF connection with the NEF during which the SMF sends the NEF the UE address.

1-2. The same as step 1-2 in example two.

Nef invokes MBS AF session creation/update to SMF using AF ID and SSM.

4-8. Steps 8-10 and 12-13 are the same as in example two.

SMF response NEF. The NEF responds to AF.

11. Step 14 as in example two.

SMF informs NEF. The NEF notifies the AF.

Example four: referring to fig. 6d, an AF trigger MBS session management procedure without PCC in the network is shown, similar to example two, except that the NEF interacts with the SMF not through PCC, but directly with the SMF.

Example five: referring to fig. 6e, an AF trigger MBS session management procedure without PCC in the network is shown, similar to example two, except that NEF interacts with NRF and MB-SMF first instead of SMF.

The execution main body of the multicast service processing method provided by the embodiment of the application can be a multicast service processing device. In the embodiment of the present application, a method for executing multicast service processing by a multicast service processing device is taken as an example, and the multicast service processing device provided by the embodiment of the present application is described.

Referring to fig. 7, an embodiment of the present application provides a multicast service processing apparatus 700, including:

a first receiving module 701, configured to receive first indication information of an application function and multicast-related information from a second network function;

a first sending module 702, configured to send the first indication information and the multicast-related information to a third network function;

Optionally, the apparatus further comprises:

a second transmitting module, configured to transmit the AF information and the multicast-related information to an NRF;

and a sixth receiving module, configured to receive information of the MB-SMF from the NRF.

Optionally, the apparatus further comprises:

and the third sending module is used for sending the downlink data flow rule information to the terminal according to the multicast related information.

Optionally, the downstream rule information includes the multicast-related information, and the downstream rule information is used for the terminal to perform address and/or port conversion operation for the data stream matched with the data stream rule information.

Optionally, the apparatus further comprises:

and the fourth sending module is used for executing a PDU session establishment process for the terminal user and sending the address information of the terminal to the second network function.

Optionally, the fourth sending module is specifically configured to:

performing said sending of address information of the terminal to said second network function based on one or more of:

Optionally, the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

Optionally, the apparatus further comprises:

a seventh receiving module, configured to receive unicast packet filtering information or unicast stream description information from a second network function, where the unicast packet filtering information or unicast stream description information is associated with the multicast related information;

Referring to fig. 8, an embodiment of the present application provides a multicast service processing apparatus 800, including:

a second receiving module 801, configured to perform a PDU session establishment procedure for the terminal user, and send address information of the terminal to the second network function.

Optionally, the second receiving module is specifically configured to:

Optionally, the apparatus further comprises:

an eighth receiving module for one or more of:

receiving multicast related information from a second network function, wherein the SMF sends downlink data flow rule information to a terminal according to the multicast related information;

receiving AF information from a second network function;

the AF information is used for requesting the NRF for serving the MB-SMF of the AF corresponding to the AF information.

Optionally, the apparatus further comprises:

a fifth transmitting module, configured to transmit the AF information and the multicast-related information to the NRF;

a ninth receiving module, configured to receive information of MB-SMF from the NRF;

and a sixth sending module, configured to send the AF information and the multicast-related information to the MB-SMF.

Optionally, the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

Optionally, the apparatus further comprises:

an eleventh receiving module, configured to receive unicast packet filtering information or unicast stream description information from a second network function, where the unicast packet filtering information or unicast stream description information is associated with the multicast-related information;

The embodiment of the application also provides a multicast service processing device, which comprises:

a third receiving module for one or more of:

receiving first indication information from a second network function;

Optionally, the method further comprises:

a seventh transmitting module, configured to transmit the AF information and the multicast-related information to the NRF;

a twelfth receiving module, configured to receive information of MB-SMF from the NRF;

And an eighth sending module, configured to send the AF information and the multicast-related information to the MB-SMF.

Optionally, the apparatus further comprises:

and the eighth sending module is used for executing a PDU session establishment process for the terminal user and sending the address information of the terminal to the second network function.

Optionally, the eighth sending module is specifically configured to:

Optionally, the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

Optionally, the apparatus further comprises:

a thirteenth receiving module, configured to receive unicast packet filtering information or unicast stream description information from a second network function, where the unicast packet filtering information or unicast stream description information is associated with the multicast-related information;

Referring to fig. 9, an embodiment of the present application provides a multicast service processing apparatus 900, including:

a fourth receiving module 901, configured to one or more of:

Optionally, the apparatus further comprises:

a fourteenth receiving module for one or more of:

receiving multicast-related information from the first network function, and executing the information of sending MB-SMF to the first network function according to the multicast-related information;

multicast-related information is received from the MB-SMF for performing the sending of the MB-SMF information to the first network function also based on the multicast-related information.

Optionally, the multicast-related information includes one or more of:

A multicast identification;

multicast address information;

and the multicast application identifier has a mapping relation with one or more items of the multicast identifier and the multicast address information.

Referring to fig. 10, an embodiment of the present application provides a multicast service processing apparatus 1000, including:

a fifth receiving module 1001, configured to receive downstream rule information from a first network function, where the downstream rule information includes multicast-related information;

an execution module 1002, configured to perform address and/or port conversion operations for a data stream matching the data stream rule information.

Optionally, the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

The multicast service processing device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to fig. 6d, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted here.

Optionally, as shown in fig. 11, the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, where the memory 1102 stores a program or instructions that can be executed on the processor 1101, for example, when the communication device 1100 is a terminal, the program or instructions implement the steps of the multicast service processing method embodiment when executed by the processor 1101, and achieve the same technical effects. When the communication device 1100 is a network side device, the program or the instruction, when executed by the processor 1101, implements the steps of the foregoing embodiments of the multicast service processing method, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network side device 1200 includes: a processor 1201, a network interface 1202, and a memory 1203. The network interface 1202 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1200 of the embodiment of the present application further includes: instructions or programs stored in the memory 1203 and capable of being executed by the processor 1201, the processor 1201 calls the instructions or programs in the memory 1203 to execute the methods performed by the modules shown in fig. 7-10, and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving downlink data flow rule information from a first network function, and the downlink data flow rule information comprises multicast related information; the processor is used for the terminal to execute address and/or port conversion operation for the data stream matched with the data stream rule information. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 13 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1300 includes, but is not limited to: at least some of the components of the radio frequency unit 1301, the network module 1302, the audio output unit 1303, the input unit 1304, the sensor 1305, the display unit 1306, the user input unit 1307, the interface unit 1308, the memory 1309, the processor 1310, and the like.

Those skilled in the art will appreciate that the terminal 1300 may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 1310 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in fig. 13 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042, with the graphics processor 13041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also referred to as a touch screen. The touch panel 13071 can include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 1301 may transmit the downlink data to the processor 1310 for processing; in addition, the radio frequency unit 1301 may send uplink data to the network side device. Typically, the radio unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1309 may be used to store software programs or instructions and various data. The memory 1309 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1309 may include volatile memory or nonvolatile memory, or the memory 1309 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory x09 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 1310 may include one or more processing units; optionally, processor 1310 integrates an application processor that primarily handles operations related to the operating system, user interface, and applications, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1310.

The radio frequency unit 1301 is configured to receive, by a terminal, downlink data flow rule information from a first network function, where the downlink data flow rule information includes multicast related information;

a processor 1310, configured to perform an address and/or port conversion operation for a data stream matched with the data stream rule information by the terminal.

Optionally, the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned multicast service processing method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, the processes of the multicast service processing method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the embodiments of the multicast service processing method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for processing multicast service, comprising:

the first indication information is used for indicating a target Application Function (AF), and the target AF is an AF for providing multicast service.

2. The method of claim 1, wherein the first indication information is AF information, the third network function is a multicast session management function MB-SMF, and wherein before the first network function sends the first indication information and the multicast-related information to the MB-SMF, the method further comprises:

the first network function sends the AF information and the multicast-related information to a network storage function NRF;

the first network function receives second indication information from the NRF, the second indication information being used to indicate MB-SMF.

3. The method according to claim 1, wherein the method further comprises:

and the first network function sends downlink data flow rule information to the terminal according to the multicast related information.

4. The method of claim 3, wherein the step of,

the downstream rule information includes the multicast-related information, and the downstream rule information is used for indicating that address and/or port conversion operations are performed on the data stream matched with the data stream rule information.

5. The method according to claim 1, wherein the method further comprises:

the first network function executes a protocol data unit PDU session establishment procedure for a terminal and sends address information of the terminal to the second network function.

6. The method of claim 5, wherein the method further comprises:

and the first network function executes the address information of the terminal sent to the second network function based on the network dynamic charging deployment condition and/or the subscription information of the terminal user.

7. The method of claim 1, wherein the multicast-related information includes at least one of:

a multicast identification;

multicast address information;

and the multicast application identifier has a mapping relation with at least one item of multicast identifier and multicast address information.

8. The method according to claim 1, wherein the method further comprises:

The first network function receives unicast message filtering information or unicast stream description information from a second network function, wherein the unicast message filtering information or the unicast stream description information is associated with the multicast related information;

and under the condition that a shared transmission channel for transmitting the multicast data to the terminal cannot be established, transmitting the content data related to the multicast data through the unicast message filtering information or the unicast stream description information.

9. A method for processing multicast service, comprising:

the session management function SMF performs a PDU session establishment procedure for the terminal user and transmits address information of the terminal to the second network function.

10. The method according to claim 9, wherein said sending address information of a terminal to said second network function comprises:

and the SMF sends the address information of the terminal to the second network function based on the network dynamic charging deployment condition or the subscription information of the terminal user.

11. The method of claim 9, further comprising at least one of:

The SMF receives AF information from the second network function;

the AF information is used for indicating a target AF, wherein the target AF is an AF for providing multicast service.

12. The method according to claim 9, wherein the method further comprises:

the SMF sends AF information and the multicast related information to NRF;

the SMF receiving second indication information from the NRF, the second indication information being for indicating MB-SMF;

13. The method of claim 9, wherein the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

and the multicast application identifier has a mapping relation with at least one item of the multicast identifier and the multicast address information.

14. The method of claim 11, wherein the method further comprises:

15. A method of multicast traffic processing, the method comprising at least one of:

the SMF receives multicast related information from a second network function, and the SMF sends downlink data flow rule information to a terminal according to the multicast related information;

the SMF receives first indication information from the second network function;

16. The method of claim 15, wherein the first indication information is AF information, the method further comprising:

the SMF transmitting the AF information and the multicast-related information to an NRF;

17. The method of claim 15, wherein prior to the SMF receiving multicast-related information from the second network function, the method further comprises:

18. The method of claim 17, wherein the method further comprises:

19. The method of claim 15, wherein the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

20. The method of claim 15, wherein the method further comprises:

21. A method of multicast traffic processing, the method comprising at least one of:

22. The method of claim 21, wherein the second indication information is MB-SMF information, the method further comprising at least one of:

the NRF receives multicast related information from the first network function, and the NRF also executes the information of sending MB-SMF to the first network function according to the multicast related information;

the NRF receives multicast-related information from the MB-SMF, for the NRF to perform the transmitting of the information of the MB-SMF to the first network function based also on the multicast-related information.

23. The method of claim 22, wherein the multicast-related information includes one or more of:

A multicast identification;

multicast address information;

24. A method for processing multicast service, the method comprising:

25. The method of claim 24, wherein the multicast-related information includes one or more of:

a multicast identification;

multicast address information;

26. A multicast service processing apparatus, comprising:

27. A multicast service processing apparatus, comprising:

28. A multicast service processing apparatus, comprising:

a third receiving module for one or more of:

receiving multicast related information from a second network function, and sending downlink data flow rule information to a terminal according to the multicast related information;

receiving first indication information from a second network function;

29. A multicast service processing apparatus, characterized in that the apparatus:

a fourth receiving module for one or more of:

30. A multicast service processing apparatus, the apparatus comprising:

31. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the multicast service processing method according to any one of claims 1 to 8, or the steps of the multicast service processing method according to any one of claims 9 to 14, or the steps of the multicast service processing method according to any one of claims 15 to 20, or the steps of the multicast service processing method according to any one of claims 21 to 23, when executed by the processor.

32. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the multicast service processing method according to any of claims 24 to 25.