WO2024262995A1 - 방송 네트워크 기반 이동 통신 멀티캐스트 브로드캐스트 서비스 송수신 방법 및 장치 - Google Patents
방송 네트워크 기반 이동 통신 멀티캐스트 브로드캐스트 서비스 송수신 방법 및 장치 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Definitions
- the multicast transmission method that transmits the same content to multiple users is effective because it can utilize the advantages of both unicast and broadcast.
- the existing multicast transmission method was only possible within a single network and had the disadvantage of not being able to provide multicast services between heterogeneous networks.
- the protocol that configures the payload on IP/UDP or IP/TCP is not registered with IANA, it is impossible to identify it using the port number.
- IP multicast since the destination address and port number use the values assigned to the multicast, all receivers receive the packet, but if an unknown protocol is used, there is a problem that the multicast for the packet cannot be processed.
- the purpose of the present invention is to provide an efficient broadcast network-based mobile communication multicast broadcast service transmission and reception method and device.
- a method and device for transmitting and receiving a network-based mobile communication multicast broadcast service provide multicast and broadcast services provided in a mobile communication network through a broadcast network, so that a broadcast network receiving device can receive multicast and broadcast services of mobile communication.
- a broadcast service transmitting method for providing a multicast and broadcast service of mobile communication may include a step of provisioning an MBS (Multicast/Broadcast Service) user service; a step of provisioning an MBS session; and a step of announcing a service for the MBS user service.
- a broadcast service receiving method for providing a multicast and broadcast service of mobile communication may include a step of receiving service announcement information for an MBS (Multicast/Broadcast Service) user service; a step of announcing a broadcast service based on the service announcement information; and a step of receiving a broadcast service based on a broadcast network.
- a network-based mobile communication multicast broadcast service transmission and reception method and device can receive a multicast/broadcast service provided in a mobile communication system such as a 5G system through a broadcasting network.
- the multicast/broadcast service By transmitting the multicast/broadcast service of the mobile communication network to the broadcasting network, the multicast/broadcast service can be received even outside the coverage of the mobile communication network.
- the same level of broadcasting service can be provided even when various devices are connected to separate networks.
- Figure 1 illustrates a mobile communication system service infrastructure according to embodiments.
- Figure 2 shows the reference relationship of the mobile communication system structure according to embodiments.
- FIG. 3 illustrates a mobile communication system architecture for multiple PDU sessions according to embodiments.
- Figure 4 illustrates a mobile communication system structure for simultaneous access to two networks according to embodiments.
- Figure 5 illustrates a user plane protocol stack according to embodiments.
- FIG. 6 illustrates UDM (Unified Data Management) according to embodiments.
- Figure 7 shows an interconnection structure of a mobile communication system according to embodiments.
- FIG. 8 illustrates a mobile communication MBS (Multicast/Broadcast Service) network structure according to embodiments.
- MBS Multicast/Broadcast Service
- FIG. 9 illustrates a UDP tunnel (User Plane Protocol Stack for MBS session) for an MBS session according to embodiments.
- UDP tunnel User Plane Protocol Stack for MBS session
- Figure 10 illustrates a plain IP multicast (User Plane Protocol Stack for MBS session) according to embodiments.
- Figure 11 shows a protocol stack of a user plane for an MBS session according to embodiments.
- Figure 12 shows a user service network structure according to embodiments.
- Figure 13 illustrates functions for MBS user services according to embodiments.
- FIG. 14 shows the MBSTF (Multicast/Broadcast Service Function) according to embodiments.
- FIG. 15 shows the MBSTF (Multicast/Broadcast Service Function) according to embodiments.
- Figure 16 illustrates MBS user services according to embodiments.
- Figure 17 illustrates a mobile communication multicast broadcast service based on a broadcasting system according to embodiments.
- Figure 18 shows a network structure for applying mobile communication MBS according to embodiments to a broadcasting system.
- Figure 19 illustrates a function for providing MBS services to a broadcasting network according to embodiments.
- Figure 20 shows a protocol stack for converting MBS data according to embodiments into a service of a broadcasting system.
- Figure 21 shows a structure for providing MBS service of mobile communication through a broadcast system according to embodiments.
- Figure 22 shows a flowchart showing how MBS of mobile communication according to embodiments is serviced through a broadcast system.
- FIG. 23 illustrates a broadcast service transmission method for providing multicast and broadcast services of mobile communication according to embodiments.
- FIG. 24 illustrates a broadcast service receiving method for providing multicast and broadcast services of mobile communication according to embodiments.
- Figure 1 illustrates a mobile communication system service infrastructure according to embodiments.
- Embodiments include a method of mobile communicaiton Multicast and Broadcast service through a broadcast network.
- the broadcast network according to the embodiments may include, for example, ATSC 3.0, etc.
- the broadcast network is not limited to ATSC 3.0, but is interpreted as a term including other broadcast network standards, and embodiments are described herein using ATSC 3.0 as an example.
- Mobile communications according to the embodiments may include 5G, etc.
- the mobile communications network is not limited to 5G, but is interpreted as a term including other mobile communications network standards, and embodiments are described herein using 5G as an example.
- Embodiments relate to devices and methods for processing signals for multicast and broadcast services.
- 3GPP is defining a 5G-based multicast/broadcast service architecture and protocol.
- the network entities required for multicast and broadcast services provided in 5G networks and the related reference points have been configured, and the high-level syntax and call flow for related protocols have been defined.
- DVB defined the DVB-I standard for IP-based broadcasting services, and defined a method for providing service lists and service announcements through IP-based networks.
- a technical document was written that considers how to extend DVB-I to 5G networks.
- ATSC is also considering extending the multicast and broadcast services provided over 5G networks to broadcast networks, and has reviewed various scenarios and established plans to define specific technologies for these scenarios.
- the multicast/broadcast network structure currently being discussed in 5G is the basic network structure for services provided in 5G networks, and devices such as TV receivers that do not connect to the 5G access network cannot receive the services.
- Providing the same media content as separate services through 5G networks and broadcasting networks can be a major cause of increased network traffic or fragmentation of service providers, and by transmitting it as the same service as possible, the efficiency of network traffic or service management can be increased.
- the embodiments include a structure for providing multicast/broadcast services provided in a 5G system to a broadcast network.
- Embodiments include a path through which multicast/broadcast services are provided over an ATSC 3.0 network.
- Embodiments include methods for efficiently providing multicast/broadcast services between multiple networks.
- Embodiments include a network architecture for providing multicast/broadcast services transmitted over a 5G system to a broadcast network.
- Embodiments include methods of interfacing a network structure defined in an existing broadcast system with a 5G system.
- Embodiments include functions and associated operations for providing an interface between 5G and broadcast networks.
- Embodiments can transmit/receive multicast/broadcast services provided in a 5G system through a broadcast network.
- the embodiments enable smooth multicast/broadcast services in various network environments through linkage with functions used in existing broadcasting networks.
- Embodiments enable transmitting/receiving multicast/broadcast services even outside the coverage of the 5G network by transmitting the 5G multicast/broadcast services to the broadcast network.
- Embodiments can provide the same level of broadcast service even when different devices are each connected to separate networks.
- the 5G system architecture is as shown in FIG. 1, and the network function (NF) of the 5G system includes the following: AUSF (Authentication Server Function), AMF (Core Access and Mobility Management Function), DN (Data network), where DN may include operator services, Internet access, or 3rd party services.
- SDSF Structured Data Storage network function
- UDSF Unstructured Data Storage network function
- NEF Network Exposure Function
- NRF NF Repository Function
- PCF Policy Control function
- SMF Session Management Function
- UDM Unified Data Management
- UPF User plane Function
- AF Application Function
- UE User Equipment
- (R)AN ((Radio) Access Network).
- Fig. 1 illustrates the structure of a non-roaming case of a 5G system in terms of service-based interfaces.
- User plane data is transmitted through DN, UPF, (R)AN, and UE, and other functions can process control plane data.
- each service-based interface is as follows: Namf: service-based interface by AMF, Nsmf: service-based interface by SMF, Nnef: service-based interface by NEF, Npcf: service-based interface by PCF, Nudm: service-based interface by UDM, Naf: service-based interface by AF, Nnrf: service-based interface by NRF, Nausf: service-based interface by AUSF.
- Figure 2 shows the reference relationship of the mobile communication system structure according to embodiments.
- Figure 2 is a 5G system architecture for a non-roaming case, showing how various network functions interact using reference points.
- N6 and N3 are reference points between the functions, and (R)AN and UE can be connected wirelessly.
- the reference point can be defined as follows.
- N1 Reference point between UE and AMF
- N2 Reference point between (R)AN and AMF
- N3 Reference point between (R)AN and UPF
- N4 Reference point between SMF and UPF
- N5 Reference point between PCF and AF
- N6 Reference point between UPF and data network
- N7 Reference point between SMF and PCF
- N7r Reference point between PCF of visited network and PCF of home network
- N8 Reference point between UDM and AMF
- N9 Reference point between two Core UPFs
- N10 Reference point between UDM and SMF
- N11 Reference point between AMF and SMF
- N12 Reference point between AMF and AUSF
- N13 Reference point between UDM and authentication server AUSF
- N14 Reference point between two AMFs
- N15 Reference point between PCF and AMF in non-roaming scenario.
- N16 Reference point between two SMFs (in case of roaming, between SMF of visited network and SMF of home network).
- N17 Reference point between AMF and EIR.
- N18 Reference point between NF and UDSF.
- N19 Reference point between NEF and SDSF.
- the reference points listed above can be defined as separate protocols, or as messages with separate identifiers on a common protocol.
- the interface of the control plane can be physically shared with other reference points, and each can identify the reference points using its own protocol or message set.
- FIG. 3 illustrates a mobile communication system architecture for multiple PDU sessions according to embodiments.
- Figure 3 shows a network structure for supporting two DNs based on the 5G system structure described above.
- a UPF and SMF for the DN can be configured separately, and this function can also be connected through the control plane function and the corresponding reference point, respectively. Accordingly, each DN provides a separate PDU session, and the SMF can control the session.
- Figure 4 illustrates a mobile communication system structure for simultaneous access to two networks according to embodiments.
- Figure 4 is a 5G system architecture for simultaneous access to two data networks with a single PDU session.
- Figure 4 is a network structure configured so that a PDU session provided by each DN can operate as a single session by using a single SMF in a structure connected to two DNs.
- the user plane protocol stack for one PDU session can be defined as in Fig. 5.
- Figure 5 illustrates a user plane protocol stack according to embodiments.
- PDU Layer This layer corresponds to the PDU transmitted between the UE and the DN through the PDU session. If the PDU session type is IPV6, it corresponds to an IPv6 packet. If the PDU session type is Ethernet, it corresponds to an Ethernet frame.
- 5G Encapsulation This layer supports multiplexing traffic of different PDU sessions (which may correspond to different PDU session types) over N3 (i.e. between AN and 5GC) or N9 (i.e. between different UPFs of 5GC). It provides encapsulation at PDU session level. This layer also carries indications related to QoS flows.
- AN Protocol Stack This set of protocols/layers is AN dependent. If the AN is a 3GPP RAN, these protocols/layers are *?* defined by the 3GPP RAN.
- the number of UPFs in a data path is not limited by the 3GPP specifications.
- a PDU session's data path can have zero, one, or multiple UPFs that do not support the PDU session anchoring functionality for this PDU session.
- the UPF that acts as a PDU session anchor in a PDU session type is the IP anchor point of the IP address/prefix assigned to the UE.
- each network function is as follows:
- AMF Access and Mobility Management function
- AMF can include the following features: A single AMF instance can support all or some of the following features:
- RAN CP interface (N2) termination N2
- NAS N1
- NAS encryption and integrity protection termination registration management, connection management, accessibility management, mobility management, lawful interception (for AMF events and LI system interface)
- SEA Security Anchor Function
- AMF retrieves security material from AUSF
- SCM Security Context Management
- SCM receives keys from SEA that it uses to derive access network specific keys.
- AMF may include the following features to support non-3GPP access networks:
- N2 interface support using N3IWF Some information (e.g. 3GPP cell identification) and procedures (e.g. Hand-Over related) defined for 3GPP Access may not apply to this interface, and non-3GPP access specific information that does not apply to 3GPP Access may apply.
- 3GPP cell identification e.g. 3GPP cell identification
- procedures e.g. Hand-Over related
- the capabilities of a single AMF instance include supporting authentication of UEs connected via N3IWF, managing mobility, authentication and separate security context states for UEs connected via non-3GPP access or connected simultaneously via 3GPP and non-3GPP access, supporting coordinated RM management contexts that are valid for 3GPP and non-3GPP access, and supporting dedicated CM management contexts for UEs connected via non-3GPP access.
- a Session Management function can include the following features.
- a single SMF instance can support all or some of the following features:
- Session Management (e.g. session setup, modification and teardown including tunnel maintenance between UPF and AN nodes, UE IP address allocation and management (including optional authorization), selection and control of UP capabilities, configuring traffic steering in the UPF to route traffic to the appropriate destination, interface termination for policy control capabilities, policy enforcement and control of parts of QoS, lawful interception (for SM events and LI system interface), termination of SM portion of NAS messages, downlink data notification, initiation of AN specific SM information to be sent to AN via AMF over N2, determination of SSC mode of session, roaming capabilities (handling local enforcement to enforce QoS SLA (VPLMN), charging data collection and interaction with external DN for charging interface (VPLMN), lawful interception (VPLMN and LI system interface for SM events), signaling for PDU session authorization/authentication by external DN).
- VPN local enforcement to enforce QoS SLA
- VPN charging data collection and interaction with external DN for charging interface
- VPLMN and LI system interface for SM events signaling for P
- UPF may include the following features: A single UPF interface may support all or some of the following features:
- Anchor points for intra-/inter-RAT mobility (where applicable), external PDU session points for interconnection to the data network, packet routing and forwarding, packet inspection and user plane portion of policy rule enforcement, lawful interception (UP collection), traffic usage reporting, uplink classifier to support routing traffic flows to the data network, branch points to support multi-homed PDU sessions, QoS handling for the user plane (e.g., packet filtering, gating, UL/DL rate enforcement, uplink traffic validation (SDF to QoS flow mapping), transport-level packet marking on uplink and downlink, downlink packet buffering, and downlink data notification triggering.
- packet filtering gating, UL/DL rate enforcement
- SDF to QoS flow mapping uplink traffic validation
- transport-level packet marking on uplink and downlink downlink packet buffering
- downlink data notification triggering e.g., packet filtering, gating, UL/DL rate enforcement, transport-level packet marking on uplink and downlink, downlink packet buffering, and downlink data notification triggering.
- a policy function may include the following features:
- UDR User Data Repository
- NEF Network Exposure Function
- Network Exposure Function may include the following features:
- the network exposing function receives information from other network functions (based on the exposed functions of other network functions), it stores the received information as structured data using a standardized interface to the data storage network function (an interface to be defined by 3GPP), the stored information may be "re-exposed" by the NEF to other network functions and application functions and may be used for other purposes such as analytics.
- NF Repository Function can include the following features:
- NF Discovery Requests from NF instances, provides information about discovered NF instances to NF instances, and maintains information about available NF instances and supported services.
- FIG. 6 illustrates UDM (Unified Data Management) according to embodiments.
- Fig. 6 is a UDM of NF according to embodiments.
- UDM can be classified into FE (application front end) and UDR (User Data Repository).
- Figure 6 illustrates a reference structure for UDM, which may include the following front ends.
- UDM FE Responsible for credential processing, location management, subscription management, etc.
- PCF responsible for policy control.
- PCF is a standalone network function of the overall 5GC architecture and is therefore not part of UDM. However, PCF can request and provide policy subscription information to UDR and for this reason is shown in the UDM architecture.
- UDR stores data required for the functions provided by UDM-FE and policy profiles required by PCF.
- Data stored in UDR includes: User subscription data including subscription identifiers, security credentials, access and mobility-related subscription data, and session-related subscription data.
- UDM-FE accesses subscription information stored in the UDR (User Data Store) and supports the following functions: authentication credential processing, user identification processing, access rights, registration/mobility management, subscription management, SMS management.
- the front end implements application logic and does not require an internal user data store. Multiple different front ends can serve the same user in different transactions.
- N25/Nudr reference point/interface is defined for front end for reading, updating (including adding and modifying), deleting, subscribing to data change notifications and data change notifications of UDR.
- N25 is the name of P2P reference point and Nudr is the name of service-based interface.
- AUSF Authentication Server Function
- AUSF supports the following features: Supports AUSF (Authentication Server Function).
- AF Application Functions
- 3GPP core network interacts with the 3GPP core network to provide services that support, for example: application influence on traffic routing, access to network function exposure, and interaction with the policy framework for policy control.
- Figure 7 shows an interconnection structure of a mobile communication system according to embodiments.
- Figure 7 shows the architecture for internetworking between a 5G system and EPC/E-UTRAN (4G system) for non-roaming.
- PCF + PCRF, PGW-C + SMF, UPF + PGW-U can be optionally applied for interworking with 5G system and EPC.
- PGW / PCRF or SMF / UPF / PCF can be serviced from non-interworking entities, i.e. PGW / PCRF or SMF / UPF / PCF.
- FIG. 8 illustrates a mobile communication MBS (Multicast/Broadcast Service) network structure according to embodiments.
- MBS Multicast/Broadcast Service
- MBS Multicast/Broadcast Service
- Figure 8 illustrates the 5G MBS (Multicast/Broadcast Service) network structure.
- FIG. 8 can be viewed as an example of a network architecture for multicast/broadcast services based on a 5G core network for MBS.
- reference points can be configured as follows.
- Nmb13, N29mb, and Nmb1 can be configured with the same interface.
- Nmb5 and Nmb10 can be configured with the same interface.
- Nmb9 and N6mb can be configured with the same interface.
- Functions AF/AS, MBSF, MBSTF, etc. can be functions that operate to provide UE MBS user services. Also, reference points Nmb10, Nmb2, Nmb8, Nmb5 can be used to provide MBS user services.
- Reference point Nmb10 can be used by AF/AS to provide MBS user services to MBSF by calling Nmbsf service.
- Reference point Nmb2 can be used by MBSF to call the Nmbstf service to configure and control how MBS user services are distributed to MBSTF. If the MBS user service announcement channel is in use, MBSF can additionally push an object manifest to MBSTF, which describes a set of user service announcement objects.
- Reference point Nmb8 can be used by MBSTF to ingest contents from AF/AS.
- PCF can perform the following functions to support multicast/broadcast services:
- PCF performs the following functions to support MBS when dynamic PCC for MBS is required:
- PCF can receive MBS information from AF, NEF or MBSF based on various configuration options.
- MB-SMF Multicast/Broadcast Session Management Function
- MB-SMF can perform the following functions to support multicast/broadcast services:
- MBS session management (including QoS control), configures MB-UPF for multicast and broadcast data transmission, and allocates and deallocates TMGI based on policy rules for multicast and broadcast services in PCF or local policy.
- broadcast MBS sessions Interacts with RAN via AMF to control data transmission using 5GC shared MBS traffic forwarding method.
- SMF Session Management Function
- SMF can perform the following functions to support multicast/broadcast services:
- MB-SMF can be discovered for multicast MBS sessions.
- Interacts with MB-SMF Interacts with MB-SMF to obtain multicast session context information, which is used as input to modify the PDU session associated with the MBS session.
- Interacts with the RAN Interacts with the RAN to provide information about the multicast MBS sessions in which the UE is participating.
- SMF and MB-SMF can be deployed together or separately.
- MB-UPF Multicast/Broadcast User Plane Function
- MB-UPF can perform the following functions to support multicast/broadcast services:
- multicast MBS sessions For 5GC individual MBS traffic forwarding method, multicast data is forwarded to UPF.
- UPF User Plane Function
- UPF can perform the following functions to support multicast/broadcast services:
- 5GC interacts with SMF to receive multicast data from MB-UPF for individual MBS traffic forwarding method.
- multicast data is delivered to the UE through PDU Session.
- UPF and MB-UPF can be deployed together or separately.
- AMF can perform the following functions to support multicast/broadcast services:
- Signaling is transmitted using NG-RAN and MB-SMF for MBS session management.
- AMF is also aware of NG-RAN 5G MBS capabilities.
- NG-RAN can perform the following functions to support multicast/broadcast services:
- the UE can perform the following functions:
- CM-CONNECTED state in CM-IDLE state and RRC _INACTIVE state for multicast data transmission.
- AF can perform the following functions to support multicast/broadcast services:
- NEF can perform the following functions to support multicast/broadcast services:
- Interacts with AF and NF in 5GC Determines MB-SMF, transmission parameters for MBS session operation. Selects MB-SMF to provide MBS session.
- MBSF Multicast/Broadcast Service Function
- MBSF can perform the following functions to support multicast/broadcast services:
- MBSTF Multicast/Broadcast Service Transport Function
- MBSTF can perform the following functions to support multicast/broadcast services:
- UDM can perform the following functions to support multicast/broadcast services:
- FIG. 9 illustrates a UDP tunnel (User Plane Protocol Stack for MBS session) for an MBS session according to embodiments.
- UDP tunnel User Plane Protocol Stack for MBS session
- Figure 9 shows a core network protocol for transmission of user plane data from AF/MBSTF to UE.
- UDP Tunnel User Plane Protocol Stack for MBS session
- Figure 9 is a protocol stack of the user plane for an MBS session in the case of shared delivery, and reference points N6mb and Nmb9 represent the case where a UDP tunnel is applied.
- Figure 10 illustrates a plain IP multicast (User Plane Protocol Stack for MBS session) according to embodiments.
- Plain IP Multicast (User Plane Protocol Stack for MBS session)
- Figure 10 is a protocol stack of the user plane for an MBS session in the case of shared delivery, and shows the case where plane IP multicast is applied to the reference point N6mb.
- Figure 11 shows a protocol stack of a user plane for an MBS session according to embodiments.
- the user plane protocol stack for the MBS session is configured as shown in Fig. 11.
- the 5G-AN protocol layers represent protocols/layers applied to the access network, and 3GPP NR can be applied for 5G MBS.
- Figure 12 shows a user service network structure according to embodiments.
- Fig. 12 illustrates an MBS user service architecture composed of entities related to providing delivery and control for MBS user services.
- an MBS application provider can perform the role of AF/AS.
- Figure 13 illustrates functions for MBS user services according to embodiments.
- Fig. 13 shows the configuration for all functional entities including UE that operate to support MBS user services when the application provider is configured within the Trusted DN.
- MBS-specific functions such as MBS AS and MBSF are shown as being configured independently and standalone, but in actual implementation, they may be configured within the same device as other functions.
- the MBS AS may be hosted within the MBS application provider domain, or may be hosted within the 5GMS AS.
- MBSF receives provisioning and control commands directly from reference point Nmb10 or from reference point Nmb5 (via NEF). MBSF invokes MBS session operations for MB SMF at reference point Nmb1. MBSF configures MBSTF at reference point Nmb2.
- Additional control plane features of MBSF that support MBS user services include:
- the following mechanisms are: unicast User Service Announcements delivered by MBS AF via reference point MBS-5, including the possibility of using push or notification-based update mechanisms; User Service Announcements via MBS Distribution Sessions delivered by MBSTF in reference point MBS-4-MC (optionally in the same MBS Distribution Session as the advertised content, or via a dedicated MBS Distribution Session managed by MBSF, referred to as MBS); User Service Announcements via User Service Announcement Channels, application-to-person means in reference point MBS-8.
- MBSTF receives user plane data traffic from reference point Nmb8 and sends MBS data packets to MB UPF through reference point Nmb9.
- Additional user plane features of MBSTF to support MBS user services include:
- Send notification events to MBSF (e.g. data collection failure, session termination, forwarding via reference point Nmb2). Based on MBS deployment session configuration.
- MBS delivers collected objects or object sequences to MBS clients using the object distribution method. This can be used to support real-time distribution of media segments (special objects), including CMAF segments.
- MBS forwards the collected packet stream to the MBS client using the packet distribution method.
- FIG. 14 shows the MBSTF (Multicast/Broadcast Service Function) according to embodiments.
- Fig. 14 illustrates the MBSTF sub-functions that support the object distribution method.
- the object collection sub-function fetches one or more objects from MBS AF using HTTPS for inclusion in the MBS User Service Notification Channel. (The set of objects to be included is listed in the object manifest previously fetched from MBS AF of the same reference point.)
- Push-based collection from reference point Nmb2 The object collection sub-function receives an object manifest from MBSF describing the set of objects to be included in the MBS User Service Notification Channel. MBSTF continues to retrieve the objects listed in the object manifest from MBS AF through reference point MBS-11. Pull-based collection from reference point Nmb8: In this case, the object collection sub-function retrieves one or more objects from the MBS Application Provider (AF/AS).
- AF/AS MBS Application Provider
- Push-based collection in Reference Point Nmb8 The Object Collection sub-function receives one or more objects from the AF/AS (MBS Application Provider).
- AF/AS MMS Application Provider
- reference points Nmb2 and MBS-11 are a subset of those of reference point Nmb8.
- the object splitting sub-function supports splitting objects into payload units suitable for MBS transmission.
- An optional application layer FEC sub-feature supports object recovery when an MBMS client fails to receive some packets.
- the packetization subfunction places payload units (and optionally FEC data) into Nmb9 transport packets.
- the packet reservation subfunction reserves an outgoing packet stream based on the target bit rate configuration.
- the control subfunction provides support for MBSTF service configuration, status query, and notification at reference point Nmb2.
- FIG. 15 shows the MBSTF (Multicast/Broadcast Service Function) according to embodiments.
- FIG. 15 illustrates the MBSTF sub-functions supporting the packet distribution method.
- the packet collection sub-function supports receiving packet sequences from an authenticated source to the reference point Nmb2.
- the packetization subfunction places the collected packets (and optionally FEC data) into Nmb9 transport packets. Depending on the transport mode, the collected packets may be reformatted for MBS transmission.
- the packet reservation subfunction reserves outgoing data streams based on the target bit rate configuration.
- the control subfunction provides support for MBSTF service configuration and service notification at reference point Nmb2.
- the MBS client function is part of the UE.
- the MBS client is further subdivided into the following subfunctions:
- MBSF Client Communicates with MBS AF at reference point MBS 5 in terms of MBS user service control. Communicates with MBSSF at reference point MBS 10 to authenticate access to secure MBS data received from reference point MBS 4 MC.
- MBSTF Client Communicates with MBSTF at reference point MBS 4 MC and/or MBS AS at reference point MBS 4 UC to provide MBS application data sessions to MBS aware applications.
- the MBS client performs the following functions to support MBS user services:
- AL-FEC is used to repair packets or objects.
- unicast recovery is performed via MBS-4-UC, a reference point for application payload data carried in multicast/broadcast packets that were not successfully received via MBS-4-MC.
- MBS clients are typically controlled by external applications that trigger MBS user service session setup.
- MBS-aware applications are not defined in this document, but this functionality relies on network capabilities that support MBS clients and (indirectly) MBS user services (MBSF, MBSTF and MBS AS) via reference points MBS 6 and MBS 7.
- MBSF MBS user services
- MBSTF MBSTF and MBS AS
- Figure 16 illustrates MBS user services according to embodiments.
- Fig. 16 is a flowchart of the operation for the MBS user service as follows.
- the MBS application provider calls the Nmbsf service in MBSF to provision the application service as an MBS user service.
- MBSF calls Nmbstf in MBSTF to provision one or more MBS distribution sessions.
- MBSF generates a user service announcement that can be accessed by the MBS client of the UE.
- the MBS application provider uses the MBS-8 interface to inform MBS-aware applications that a specific application service is accessible through the MBS user service by way of application service announcement.
- the MBSF client synthesizes an application service announcement from the user service announcement received in step 3 and uses the MBS-6 interface to inform MBS-aware applications that the application service can be accessed via the MBS user service.
- MBS Application Provider creates MBS User Data Ingest Session with MBSTF via MBSF, and MBSTF ingests user data via Nmb8.
- the MBS-aware application calls a procedure in MBS-6 to request the MBS client to access a specific MBS user service.
- the MBSF client can query MBSF via the MBS-5 interface to discover additional access information for the corresponding MBS user service.
- the MBSF client provides the MBS distribution session information acquired as part of the user service announcement information to the MBSTF client through MBS-6'.
- the MBSTF client enables reception of MBS distribution sessions.
- the MBSF client continuously processes MBS distribution sessions based on updates received through the MBS-5 interface.
- the MBSTF client receives MBS distribution session data as part of the MBS distribution session through the MBS-4 MC interface.
- MBSTF provides MBS distribution session data to MBS-aware applications via the MBS-7 interface in the MBS application data session.
- MBS-aware applications control MBS user services by calling MBS application service control procedures from MBSF clients via MBS-6.
- Figure 17 illustrates a mobile communication multicast broadcast service based on a broadcasting system according to embodiments.
- MNO Mobile Network Operator
- 5GS 5G System
- MNO-based multicast/broadcast services e.g., linear video, non-real-time data
- 5GS Fifth Generation
- ATSC 3.0 the geographical coverage of ATSC 3.0 may be different from or overlap with that of 5GS.
- Figure 17 illustrates a structure in which an MNO transmission broadcast service is transmitted through an NG RAN and an ATSC 3.0 network.
- the broadcast service is initiated from MBS AF/AS and transmitted to an end user using NG-RAN through 5GC, and is also transmitted to the ATSC 3.0 network of the BNO.
- Figure 18 shows a network structure for applying mobile communication MBS according to embodiments to a broadcasting system.
- FIG. 18 shows a network structure for applying 5G MBS to ATSC 3.0 broadcast system based on the scenario described above.
- A3IWF (ATSC 3.0 Interworking Function) will be added to the 5G network to interface with ATSC 3.0 networks, which can provide 5G MBS to ATSC 3.0 networks.
- A3IWF can perform processing related to interworking between 3GPP 5G core networks and ATSC 3.0 networks.
- A3IWF can be connected to AMF through N2 interface for control plane data, and to MB-UPF through N3bm interface for user plane data.
- session creation includes parameters that identify the broadcast session and the area to which the broadcast session applies.
- a list of tracking areas or CellIDs can be information about the service area.
- location information for ATSC 3.0 transmitters can be defined later.
- Figure 19 illustrates a function for providing MBS services to a broadcasting network according to embodiments.
- Functional entities for ATSC3.0-based multicast and broadcast include:
- A3IWF (ATSC 3.0 Interworking Function):
- Figure 19 shows the overall functional entity for serving MBS user services to an ATSC3.0 network.
- the MBS application provider is configured in a Trusted DN and the MBS client function is configured within the A3IWF.
- A3IWF may include MBS client functionality and may be defined as the function to convert MBS services into ATSC 3.0 services and deliver them to ATSC 3.0 networks.
- A3WIF can be composed of an A3IWF application and an MBS client.
- the A3IWF application corresponds to the MBS awareness application in the 5G MBS system.
- the A3IWF application can be composed of the A3IWF control function and the A3IWF server in detail.
- the A3IWF control function can be connected to an MBSF client via the MBS-6 interface.
- the MBS-6 interface is an API exposed by the MBSF client and can be used by the A3IWF control function of the A3IWF application, and is the interface used to manage and control MBS user services.
- the A3IWF control function is a function of the ATSC system manager, and can also perform roles such as defining PLPs and assigning IP addresses/port numbers to transmit services provided by the A3IWF server.
- the A3IWF server can connect to the MBSTF client via the MBS-7 interface.
- the MBS-7 interface is an API exposed by the MBSTF client and can be used by the A3IWF server of the A3IWF application, and is the interface used to receive user data distributed using the MBS user service.
- the A3IWF server can configure the functionality of a media receiver to receive user data transmitted from a media server configured inside the MBSTF client.
- Multicast MBS session and broadcast MBS session data received through the media receiver configured inside the A3IWF server are converted into ATSC 3.0 services by the A3IWF server.
- Figure 20 shows a protocol stack for converting MBS data according to embodiments into a service of a broadcasting system.
- FIG. 20 illustrates the protocol stack for the process in which MBS distribution session data transmitted in MBSTF is converted into ATSC3.0 service by A3IWF.
- A3IWF One of the main functions of A3IWF is to receive MBS user service session data of MBS user service, convert it back into ATSC3.0-based ROUTE session, and transmit it to ATSC3.0 network.
- DASH segments can be composed in the form of CMAF segments, and CMAF segments can be composed of MBS distribution as an object distribution method via the FLUTE protocol.
- CMAF When CMAF is transmitted as FLUTE protocol through MBS distribution session, it is received by MBSTF client of A3IWF.
- MBSTF clients can receive CMAF segments over the FLUTE protocol and reassemble them into DASH segments.
- MBS user data (DASH segment) received through the MBS-7 interface is transmitted to the A3IWF server.
- the A3IWF server encapsulates DASH segments into the ROUTE protocol for ATSC3.0 services and transmits them to the ATSC3.0 network based on IP/UDP.
- Figure 21 shows a structure for providing MBS service of mobile communication through a broadcast system according to embodiments.
- FIG. 21 shows a domain model for serving 5G MBS through an ATSC 3.0 system.
- the MBS application provider initiates MBS user service provisioning together with MBSF to provision MBS user services.
- the MBS Application Provider provisions multiple time-bound MBS User Data Ingestion sessions within the newly provisioned MBS User Service scope.
- MBSF establishes an MBS session in the MBS system and establishes an MBS user service session of the upper MBS user service.
- the reception parameters of the MBS session are advertised through the MBS user service announcement, and the MBS user service announcement is delivered back to the MBS application provider through the MBS user service provisioning.
- MBSTF establishes an MBS user data ingest session between the MBS application provider and MBSTF to ingest objects or packets according to the distribution method defined in the provisioning phase.
- MBSTF establishes an MBS distribution session and starts transmitting objects or packets in the MBS user data ingest session if the objects or packets are transferable according to the configured distribution method.
- the MBS-aware application instructs the MBSF client to activate the MBS user service via the MBS user service control.
- MBS-aware application can be defined as A3IWF application, and A3IWF control function of A3IWF application can instruct MBSF client to activate MBS user service through MBS user service control.
- MBSF client can obtain MBS User Service Announcement from MBSF through MBS User Service (or MBS Distribution Session) and pass selected application related parameters (such as Service Class and Service Name) to MBS-aware application through MBS User Service Control.
- MBS User Service Announcement can be performed by MBS Application Provider, in which case MBS-aware application obtains it through application-private MBS Application Service and then provides it to MBSF client through MBS User Service Control.
- an MBS-aware application can be defined as an A3IWF application, and an MBSF client can transmit application-related parameters to the A3IWF application through the MBS user service control.
- the A3IWF application obtains it through the application-private MBS application service and then provides it to the MBSF client through the MBS user service control by the A3IWF control function.
- the MBS-aware application selects the announced MBS user service via the MBS user service control, and consequently the MBSF client activates the MBSTF client to receive the corresponding MBS distribution session.
- MBS-aware application can be defined as A3IWF application, and A3IWF application (A3IWF control function) can select MBS user service announced through MBS user service control, and as a result, MBSF client can activate MBSTF client to receive corresponding MBS distribution session.
- A3IWF application A3IWF control function
- An MBS application data session is established between the MBSTF client and the MBS-aware application, providing the MBS-aware application with received user data.
- MBS-aware application can be defined as A3IWF application, and MBS application data session is established between MBSTF client and A3IWF server of A3IWF application to provide user data received to A3IWF application.
- MBS application data session is established between MBSTF client and A3IWF server of A3IWF application to provide user data received to A3IWF application.
- User data received to A3IWF application is converted to ATSC 3.0 service by A3IWF server and transmitted to ATSC 3.0 network.
- Figure 22 shows a flowchart showing how MBS of mobile communication according to embodiments is serviced through a broadcast system.
- Figure 22 shows the process through which 5G MBS serves over an ATSC 3.0 network.
- the MBS application provider calls the Nmbsf service in MBSF to provision application services to MBS user services.
- MBSF provisions one or more MBS distribution sessions by calling Nmbstf in MBSTF.
- MBSF generates user service announcements that can be accessed by MBS clients in the UE.
- An MBS application provider uses the MBS-8 interface to inform an A3IWF application that a particular application service is accessible through the MBS user service by way of an application service announcement.
- the MBSF client synthesizes an application service announcement from the user service announcement received in step 3, and notifies the A3IWF application via the MBS-6 interface via the A3IWF control function that the application service can be accessed via the MBS user service.
- MBS application provider creates MBS user data ingestion session with MBSTF via MBSF, and MBSTF ingests user data via Nmb8.
- the A3IWF control function of the A3IWF application requests the MBSF client to access a specific MBS user service by calling a procedure over the MBS-6 interface.
- the MBSF client can query MBSF via the MBS-5 interface to discover additional access information for the corresponding MBS user service.
- Step 1 Provide distribution session information
- the MBSF client provides MBS distribution session information obtained as part of the user service announcement information to the MBSTF client via MBS-6'.
- the MBSTF client enables reception of MBS distribution sessions.
- the MBSF client continuously processes MBS distribution sessions based on updated information received through the MBS-5 interface.
- the MBSTF client receives MBS distribution session data as part of an MBS distribution session via the MBS-4 MC interface.
- the A3IWF control function of the A3IWF application requests the broadcast gateway to allocate resources (IP address, port number, PLP, etc.) for an ATSC3.0 service session.
- ATSC3.0 Service Announcement is performed based on the user service announcement and application service announcement information received in steps 3 and 4.
- MBSTF provides MBS distribution session data to the A3IWF server of the A3IWF application via the MBS-7 interface in the MBS application data session.
- the A3IWF server of the A3IWF application converts the protocol of the application data session into the ATSC 3.0 protocol and provides ATSC3.0 service data to the ATSC3.0 receiver through the broadcast network.
- the A3IWF control function of the A3IWF application controls MBS user services by calling MBS application service control procedures from the MBSF client via MBS-6.
- FIG. 23 illustrates a broadcast service transmission method for providing multicast and broadcast services of mobile communication according to embodiments.
- a broadcast service transmission method for providing multicast and broadcast services of mobile communication includes the operations described in FIGS. 1 to 22, etc., and can be performed by an MBS application provider and/or A3IWF of FIG. 21, etc.
- a broadcast service transmission method may include a step (S2300) of provisioning an MBS (Multicast/Broadcast Service) user service.
- S2300 a step of provisioning an MBS (Multicast/Broadcast Service) user service.
- MBS Multicast/Broadcast Service
- the broadcast service transmission method may further include a step (S2310) of provisioning an MBS session.
- the broadcast service transmission method may further include a step (S2320) of announcing a service for an MBS user service.
- the step (S2300) of provisioning an MBS (Multicast/Broadcast Service) user service includes the first step (application service provisioning) of FIG. 22.
- the step (S2310) of provisioning an MBS session includes the second step (distribution session provisioning) of FIG. 22.
- the step (S2320) of announcing a service for an MBS user service includes the third step (user service announcement) of FIG. 22.
- the method of FIG. 23 may further include a step of requesting an MBS user service; and a step of requesting allocation of resource information for a broadcast session.
- the step of requesting an MBS user service may include step 6 (Application Service Control) of FIG. 22.
- the step of requesting allocation of resource information for a broadcast session may include step 12 (Resource Assignment for ATSC3.0 Service Session) of FIG. 22.
- the method of FIG. 23 may further include a step of announcing a broadcast service based on a service announcement for an MBS user service; and a step of receiving MBS session information.
- the step of announcing the broadcast service may include step 13 (ATSC3.0 Service Announcement) of FIG. 22.
- the step of receiving MBS session information may include step 14 (Application Data Session) of FIG. 22.
- the method of FIG. 23 may further include: a step of converting a protocol regarding MBS into a protocol regarding broadcast; and a step of transmitting a broadcast service based on a broadcast network.
- the step of converting into a protocol and the step of transmitting a broadcast service may include step 15 (ATSC3.0 Service Session) of FIG. 22.
- the method of FIG. 23 may further include: a step of controlling MBS user service; and a step of checking for an update to the MBS user service.
- the step of controlling MBS user service may include step 16 (Application Service Control) of FIG. 22.
- the step of checking for an update may include step 17 (ATSC3.0 Service Configuration Update) of FIG. 22.
- session data of an MBS user service is converted into ROUTE data of a broadcast network
- a segment for a broadcast service is composed of a segment of an MBS service
- a segment for a broadcast service can be encapsulated based on a ROUTE protocol of a broadcast network.
- a broadcast service transmitting device for providing a multicast and broadcast service of mobile communication includes: a memory; and a processor for performing a broadcast service transmitting method stored in the memory; and the transmitting method may include: a step of provisioning an MBS (Multicast/Broadcast Service) user service; a step of provisioning an MBS session; and a step of service announcing for an MBS user service.
- the transmitting device may be a network server.
- FIG. 24 illustrates a broadcast service receiving method for providing multicast and broadcast services of mobile communication according to embodiments.
- a broadcast service receiving method for providing multicast and broadcast services of mobile communication includes the operations described in FIGS. 1 to 22, etc., and can be performed by an ATSC3.0 network-based receiver of FIGS. 21 to 22, etc.
- a method for receiving a broadcast service may include a step (S2400) of receiving service announcement information for an MBS (Multicast/Broadcast Service) user service.
- S2400 a step of receiving service announcement information for an MBS (Multicast/Broadcast Service) user service.
- MBS Multicast/Broadcast Service
- the broadcast service receiving method may further include a step (S2410) of announcing a broadcast service based on service announcement information.
- the method for receiving a broadcast service may further include a step (S2420) of receiving a broadcast service based on a broadcast network.
- the step of receiving service announcement information (S2400) may include step 13 (ATSC3.0 Service Announcement) of FIG. 22.
- the service announcing step (S2410) may include step 15 (ATSC3.0 Service Session) of FIG. 22.
- the step of receiving a broadcast service may include step 17 (ATSC3.0 Service Configuration Update) of FIG. 22.
- a broadcast service can be received based on the ROUTE data of a broadcast network generated by converting session data of an MBS user service.
- a segment for a broadcast service is composed of a segment of an MBS service, and a segment for a broadcast service is received in a form that is encapsulated and generated based on the ROUTE protocol of a broadcast network.
- broadcast services are received over the broadcast network.
- a broadcast service receiving device for providing multicast and broadcast services of mobile communication comprises a broadcast receiver, a memory; and a processor for performing a broadcast service receiving method stored in the memory; wherein the method may include: a step of receiving service announcement information for an MBS (Multicast/Broadcast Service) user service; a step of announcing a broadcast service based on the service announcement information; and a step of receiving a broadcast service based on a broadcast network.
- MBS Multicast/Broadcast Service
- multicast/broadcast services provided in mobile communication systems such as 5G systems can be received through broadcasting networks.
- smooth multicast/broadcast services can be provided even in various network environments.
- Multicast/broadcast services of mobile communication can be transmitted to broadcasting networks, so that multicast/broadcast services can be received even outside the coverage of the mobile communication network. Even when various devices are connected to separate networks, the same level of broadcasting services can be provided.
- each drawing has been described separately, but it is also possible to design a new embodiment by combining the embodiments described in each drawing.
- designing a computer-readable recording medium in which a program for executing the previously described embodiments is recorded according to the needs of a person skilled in the art also falls within the scope of the embodiments.
- the devices and methods according to the embodiments are not limited to the configurations and methods of the embodiments described above, but the embodiments may be configured by selectively combining all or part of the embodiments so that various modifications can be made.
- the various components of the device of the embodiments may be performed by hardware, software, firmware, or a combination thereof.
- the various components of the embodiments may be implemented as one chip, for example, one hardware circuit.
- the components according to the embodiments may be implemented as separate chips, respectively.
- at least one of the components of the device of the embodiments may be configured with one or more processors capable of executing one or more programs, and the one or more programs may perform, or include instructions for performing, one or more of the operations/methods according to the embodiments.
- the executable instructions for performing the methods/operations of the device of the embodiments may be stored in non-transitory CRMs or other computer program products configured to be executed by one or more processors, or may be stored in temporary CRMs or other computer program products configured to be executed by one or more processors.
- the memory according to the embodiments may be used as a concept including not only volatile memory (e.g., RAM, etc.), but also non-volatile memory, flash memory, PROM, etc. Additionally, it may include implementations in the form of carrier waves, such as transmission over the Internet. Additionally, the processor-readable recording medium may be distributed across network-connected computer systems, so that the processor-readable code may be stored and executed in a distributed manner.
- first, second, etc. may be used to describe various components of the embodiments. However, the various components according to the embodiments should not be limited in their interpretation by the above terms. These terms are merely used to distinguish one component from another. For example, a first user input signal may be referred to as a second user input signal. Similarly, a second user input signal may be referred to as a first user input signal. The use of these terms should be construed as not departing from the scope of the various embodiments. Although the first user input signal and the second user input signal are both user input signals, they do not mean the same user input signals unless the context clearly indicates otherwise.
- the operations according to the embodiments described in this document may be performed by a transceiver device including a memory and/or a processor according to the embodiments.
- the memory may store programs for processing/controlling the operations according to the embodiments, and the processor may control various operations described in this document.
- the processor may be referred to as a controller, etc.
- the operations according to the embodiments may be performed by firmware, software, and/or a combination thereof, and the firmware, software, and/or a combination thereof may be stored in the processor or in the memory.
- the transmitting/receiving device may include a transmitting/receiving unit for transmitting and receiving media data, a memory for storing instructions (program codes, algorithms, flowcharts, and/or data) for a process according to the embodiments, and a processor for controlling operations of the transmitting/receiving device.
- the processor may be referred to as a controller, etc., and may correspond to, for example, hardware, software, and/or a combination thereof.
- the operations according to the embodiments described above may be performed by the processor.
- the processor may be implemented as an encoder/decoder, etc. for the operations of the embodiments described above.
- the embodiments can be wholly or partially applied to a broadcast network-based mobile communication multicast broadcast service transmission and reception method and device.
- Embodiments may include modifications/changes, which do not depart from the scope of the claims and their equivalents.
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Abstract
Description
Claims (15)
- 이동 통신의 멀티캐스트 및 브로드캐스트 서비스를 제공하기 위한 브로드캐스트 서비스 송신 방법에 있어서,MBS(Multicast/Broadcast Service) 유저 서비스를 프로비저닝(provisioning)하는 단계;MBS 세션을 프로비저닝하는 단계; 및상기 MBS 유저 서비스에 대한 서비스 어나운스먼트하는 단계; 를 포함하는,브로드캐스트 서비스 송신 방법.
- 제1항에 있어서, 상기 방법은:상기 MBS 유저 서비스를 요청하는 단계; 및브로드캐스트 세션을 위한 리소스 정보의 할당을 요청하는 단계; 를 더 포함하는,브로드캐스트 서비스 송신 방법.
- 제1항에 있어서, 상기 방법은:상기 MBS 유저 서비스에 대한 서비스 어나운스먼트에 기초하여, 브로드캐스트 서비스 어나운스먼트하는 단계; 및MBS 세션 정보를 수신하는 단계; 를 더 포함하는,브로드캐스트 서비스 송신 방법.
- 제1항에 있어서, 상기 방법은:MBS에 관한 프로토콜을 브로드캐스트에 관한 프로토콜로 변환하는 단계; 및브로드캐스트 네트워크에 기초하여, 브로드캐스트 서비스를 송신하는 단계; 를 더 포함하는,브로드캐스트 서비스 송신 방법.
- 제1항에 있어서, 상기 방법은:상기 MBS 유저 서비스를 제어하는 단계; 및상기 MBS 유저 서비스에 대한 업데이트를 확인하는 단계; 를 더 포함하는,브로드캐스트 서비스 송신 방법.
- 제4항에 있어서,상기 MBS 유저 서비스의 세션 데이터는 브로드캐스트 네트워크의 ROUTE 데이터로 변환되고,브로드캐스트 서비스에 대한 세그먼트는 MBS 서비스의 세그먼트로 구성되고,상기 브로드캐스트 서비스에 대한 세그먼트는 상기 브로드캐스트 네트워크의 ROUTE 프로토콜에 기초하여 인캡슐레이션되는,브로드캐스트 서비스 송신 방법.
- 이동 통신의 멀티캐스트 및 브로드캐스트 서비스를 제공하기 위한 브로드캐스트 서비스 송신 장치에 있어서,메모리; 및상기 메모리 내 저장된 브로드캐스트 서비스 송신 방법을 수행하는 프로세서; 를 포함하고, 상기 방법은:MBS(Multicast/Broadcast Service) 유저 서비스를 프로비저닝(provisioning)하는 단계;MBS 세션을 프로비저닝하는 단계; 및상기 MBS 유저 서비스에 대한 서비스 어나운스먼트하는 단계; 를 포함하는,브로드캐스트 서비스 송신 장치.
- 이동 통신의 멀티캐스트 및 브로드캐스트 서비스를 제공하기 위한 브로드캐스트 서비스 수신 방법에 있어서,MBS(Multicast/Broadcast Service) 유저 서비스에 대한 서비스 어나운스먼트 정보를 수신하는 단계;상기 서비스 어나운스먼트 정보에 기초하여 브로드캐스트 서비스 어나운스먼트하는 단계; 및브로드캐스트 네트워크에 기초하여, 브로드캐스트 서비스를 수신하는 단계; 를 포함하는,브로드캐스트 서비스 수신 방법.
- 제8항에 있어서,상기 MBS 유저 서비스의 세션 데이터를 변환하여 생성된 브로드캐스트 네트워크의 ROUTE 데이터에 기초하여, 상기 브로드캐스트 서비스가 수신되는,브로드캐스트 서비스 수신 방법.
- 제9항에 있어서,상기 브로드캐스트 서비스에 대한 세그먼트는 MBS 서비스의 세그먼트로 구성되고,상기 브로드캐스트 서비스에 대한 세그먼트는 상기 브로드캐스트 네트워크의 ROUTE 프로토콜에 기초하여 인캡슐레이션되어 생성되는,브로드캐스트 서비스 수신 방법.
- 제9항에 있어서,상기 MBS 유저 서비스에 대한 업데이트에 기초하여, 상기 브로드캐스트 네트워크를 통해 브로드캐스트 서비스가 수신되는,브로드캐스트 서비스 수신 방법.
- 이동 통신의 멀티캐스트 및 브로드캐스트 서비스를 제공하기 위한 브로드캐스트 서비스 수신 장치에 있어서,메모리; 및상기 메모리에 저장된 브로드캐스트 서비스 수신 방법을 수행하는 프로세서; 를 포함하고, 상기 방법은:MBS(Multicast/Broadcast Service) 유저 서비스에 대한 서비스 어나운스먼트 정보를 수신하는 단계;상기 서비스 어나운스먼트 정보에 기초하여 브로드캐스트 서비스 어나운스먼트하는 단계; 및브로드캐스트 네트워크에 기초하여, 브로드캐스트 서비스를 수신하는 단계; 를 포함하는,브로드캐스트 서비스 수신 장치.
- 제12항에 있어서,상기 MBS 유저 서비스의 세션 데이터를 변환하여 생성된 브로드캐스트 네트워크의 ROUTE 데이터에 기초하여, 상기 브로드캐스트 서비스가 수신되는,브로드캐스트 서비스 수신 장치.
- 제13항에 있어서,상기 브로드캐스트 서비스에 대한 세그먼트는 MBS 서비스의 세그먼트로 구성되고,상기 브로드캐스트 서비스에 대한 세그먼트는 상기 브로드캐스트 네트워크의 ROUTE 프로토콜에 기초하여 인캡슐레이션되어 생성되는,브로드캐스트 서비스 수신 장치.
- 제13항에 있어서,상기 MBS 유저 서비스에 대한 업데이트에 기초하여, 상기 브로드캐스트 네트워크를 통해 브로드캐스트 서비스가 수신되는,브로드캐스트 서비스 수신 장치.
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| KR1020257038783A KR20260003008A (ko) | 2023-06-22 | 2024-06-21 | 방송 네트워크 기반 이동 통신 멀티캐스트 브로드캐스트 서비스 송수신 방법 및 장치 |
| EP24826310.5A EP4734562A1 (en) | 2023-06-22 | 2024-06-21 | Method and apparatus for transmitting and receiving mobile communication multicast broadcast service based on broadcast network |
| CN202480041389.6A CN121359470A (zh) | 2023-06-22 | 2024-06-21 | 用于基于广播网络发送和接收移动通信多播广播服务的方法及设备 |
| MX2025013260A MX2025013260A (es) | 2023-06-22 | 2025-11-05 | Metodo y aparato para transmitir y recibir servicio de multidifusion/radiodifusion de comunicacion movil basado en red de radiodifusion |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130170425A1 (en) * | 2007-12-13 | 2013-07-04 | Posco ICT Co., Ltd. | System and method for multicast and broadcast service |
| US20210075631A1 (en) * | 2019-11-19 | 2021-03-11 | Intel Corporation | Provisioning of multicast and broadcast services with different quality of service levels |
| WO2023019061A1 (en) * | 2021-08-12 | 2023-02-16 | Qualcomm Incorporated | Multicast-broadcast user service architecture |
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2024
- 2024-06-21 CN CN202480041389.6A patent/CN121359470A/zh active Pending
- 2024-06-21 WO PCT/KR2024/008631 patent/WO2024262995A1/ko not_active Ceased
- 2024-06-21 EP EP24826310.5A patent/EP4734562A1/en active Pending
- 2024-06-21 KR KR1020257038783A patent/KR20260003008A/ko active Pending
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130170425A1 (en) * | 2007-12-13 | 2013-07-04 | Posco ICT Co., Ltd. | System and method for multicast and broadcast service |
| US20210075631A1 (en) * | 2019-11-19 | 2021-03-11 | Intel Corporation | Provisioning of multicast and broadcast services with different quality of service levels |
| WO2023019061A1 (en) * | 2021-08-12 | 2023-02-16 | Qualcomm Incorporated | Multicast-broadcast user service architecture |
Non-Patent Citations (2)
| Title |
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| "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; 5G multicast-broadcast services; User service architecture (Release 17)", 3GPP STANDARD; 3GPP TS 26.502, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. V17.4.0, 30 March 2023 (2023-03-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 70, XP052284241 * |
| QUALCOMM INCORPORATED, BBC, TENCENT, ERICSSON: "[5GMSA_Ph2] 5GMS over 5MBS", 3GPP DRAFT; S4-230986, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. 3GPP SA 4, no. Berlin, Germany; 20230522 - 20230526, 25 May 2023 (2023-05-25), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052493213 * |
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| EP4734562A1 (en) | 2026-04-29 |
| MX2025013260A (es) | 2025-12-01 |
| KR20260003008A (ko) | 2026-01-06 |
| CN121359470A (zh) | 2026-01-16 |
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