WO2009039772A1 - Procédé pour créer un canal de transmission de plan utilisateur du service de diffusion/multidiffusion multimédia - Google Patents

Procédé pour créer un canal de transmission de plan utilisateur du service de diffusion/multidiffusion multimédia Download PDF

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Publication number
WO2009039772A1
WO2009039772A1 PCT/CN2008/072404 CN2008072404W WO2009039772A1 WO 2009039772 A1 WO2009039772 A1 WO 2009039772A1 CN 2008072404 W CN2008072404 W CN 2008072404W WO 2009039772 A1 WO2009039772 A1 WO 2009039772A1
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WIPO (PCT)
Prior art keywords
multicast
teid
multimedia service
broadcast multimedia
multicast broadcast
Prior art date
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PCT/CN2008/072404
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English (en)
Chinese (zh)
Inventor
Ying Zhu
Yong Qiu
Min Huang
Hongzhuo Zhang
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009039772A1 publication Critical patent/WO2009039772A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the communication technology field of the present invention specifically relates to a SAE/LTE evolution network, and in particular, to a method for creating a user plane transmission channel of a multicast broadcast multimedia service. Background technique
  • MBMS Multimedia Broadcast Multicast Service
  • the MBMS service is technically the same as the network side.
  • the multimedia service data is simultaneously sent to multiple receivers in the network. Accordingly, a UE receiving the MBMS service can simultaneously receive one or more broadcast/multicast services.
  • MBMS services mainly include streaming media (such as video, videophone, etc.) and background services (such as text downloading).
  • streaming media such as video, videophone, etc.
  • background services such as text downloading
  • SAE/LTE System Architecture Evolution/Long Term Evolution
  • E-UTRAN Evolved Universal Territorial Radio Access Network
  • the universal terrestrial radio access network is composed only of eNBs (Evolved NodeBs), and the eNB provides an implementation of the E-UTRAN user plane and control plane protocol functions.
  • SFN Single Frequency Network
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG 1 is a schematic diagram of the MBMS logical architecture in the prior art SAE/LTE.
  • SAE/LTE introduces an MCE (Multi-Cell/Multicast Coordination Entity) logical entity.
  • the function is to complete the coordination and configuration of the air interface resources of all the eNBs in the SFN area, so that the air interface resource configurations of all the eNBs are completely the same.
  • an MBMS GW logical entity is introduced, which is located between the BM-SC (Broadcast-Multicast Service Centre) and the eNB. It has two logical functions, namely MBMS GW-CP (multicast).
  • MBMS GW-UP multicast broadcast multimedia service gateway user plane protocol entity
  • the MBMS GW-CP is responsible for MBMS control plane related functions, such as session initiation and session termination control
  • the MBMS GW-UP is responsible for the transmission of MBMS user plane data.
  • the MBMS bearer (ie MBMS RAB) consists of two parts: MBMS Iu data bearer and MBMS radio bearer.
  • the MBMS Iu data bearer refers to the MBMS user plane bearer between the SGSN (Serving GPRS Supporting Node) and the RNC (Base Station Controller), and the MBMS air interface bearer refers to the MBMS user plane between the RNC and the UE. Hosted.
  • the MBMS bearer is established during the session initiation process. After receiving the Session Start message sent by the GGSN (Gate GPRS Supporting Node), the SGSN will connect to the SGSN.
  • GGSN Global GPRS Supporting Node
  • All RNC nodes send a Session Start message, which carries some attribute information related to the MBMS service, such as Temporary Mobile Group Identity (TMGI), Session Identity (Session Identity), MBMS RAB (Radio Access Bearer, RAB) parameters, and services. Service area, etc.
  • TMGI Temporary Mobile Group Identity
  • Session Identity Session Identity
  • MBMS RAB Radio Access Bearer, RAB
  • Service area etc.
  • the RNC node saves the attribute information of the MBMS service, and determines whether the corresponding MBMS bearer can be established according to the attribute information and its own state. If the RNC allows the establishment of the MBMS bearer, the session start success response message is returned, and The message contains the Transport Layer Information IE, otherwise it returns a Session Start failure response message.
  • the MBMS user plane transmission channel is established, the MBMS data sent by the SGSN to the RNC will be transmitted on the channel.
  • the above MBMS user plane transmission channel refers to a GTP-U tunnel (GPRS tunneling protocol user plane transmission channel).
  • GTP-U tunnel GPRS tunneling protocol user plane transmission channel.
  • Each GTP tunnel of the GTP-U is uniquely identified by the IP address of the entity where the endpoint is located and the tunnel endpoint identifier (TEID).
  • TEID tunnel endpoint identifier
  • Each IP address corresponds to a GTP-U protocol entity.
  • the TEID and the MBMS RAB have a one-to-one association.
  • the MBMS bearer is common to all UEs. It is not necessary to identify the bearers of different UEs by using the RAB ID. Differentiate between different MBMS RABs.
  • the MBMS service is only a downlink transmission service.
  • the SGSN will put the GTP protocol in front of the data packet before the data is sent. Header, the TETP is included in the GTP protocol header.
  • the transmission between the SGSN and the RNC is IP point-to-point (PTP). Therefore, for the same MBMS service, each RNC that meets the bearer establishment condition needs to assign its own IP address and TEID to the SGSN.
  • the transmission between the SGSN and the RNC uses point-to-point IP unicast.
  • Each RNC needs to provide its own IP address and TEID tunnel identifier to the SGSN for a certain service, if there are N RNCs.
  • the SGSN wants to provide the same data for the N RNCs, the SGSN needs to create N GTP-U entities (GPRS tunneling protocol entities) for the service, that is, the SGSN needs to be restored.
  • N data is sent to the corresponding RNC through each tunnel, which not only increases the processing load and buffer load of the SGSN, but also wastes the transmission resources.
  • the MBMS multicast broadcast multimedia service transport layer in the SAE/LTE system adopts IP multicast mode, that is, for a certain MBMS service
  • the MBMS GW uses a specific IP multicast address to send the same data to all.
  • the eNB belongs to the IP multicast group member. Therefore, the GPRS tunneling protocol data constructed by the MBMS GW for each eNB is the same data. Therefore, the implementation solution in the existing UMTS system cannot be applied to the MBMS in the SAE/LTE system.
  • the main purpose of the embodiments of the present invention is to provide a method for creating a user plane transmission channel of a multicast broadcast multimedia service, which is used to establish a multicast broadcast multimedia service user plane transmission channel in a SAE/LTE evolved network.
  • a method for creating a user plane transmission channel of a multicast broadcast multimedia service includes: a multicast broadcast multimedia service gateway MBMS GW acquiring an IP multicast address and a tunnel endpoint identifier TEID;
  • the evolved base station acquires the TEID and the IP multicast address, and creates a GPRS tunneling protocol user plane transmission channel according to the TEID.
  • a receiving unit configured to receive a multicast broadcast service session request
  • a TEID tunnel endpoint identifier allocation unit configured to allocate a TEID tunnel endpoint identifier for the multicast broadcast service session corresponding to the multicast broadcast service session request;
  • the transmission channel creates an execution unit, and creates a GPRS tunneling protocol based on the TEID tunnel endpoint identifier User plane transmission channel.
  • a receiving unit configured to receive a multicast broadcast multimedia service session request carrying an IP multicast address from the multicast broadcast multimedia service gateway;
  • a TEID tunnel endpoint identifier allocation unit configured to allocate a TEID tunnel endpoint identifier for the multicast broadcast multimedia service request corresponding to the multicast broadcast multimedia service session;
  • a first sending unit configured to send, to the multicast broadcast multimedia service gateway, a multicast broadcast multimedia service session request response message carrying the TEID tunnel endpoint identifier
  • a second sending unit configured to send, to each evolved base station, a multicast broadcast multimedia service session request that carries the IP multicast address and the TEID tunnel endpoint identifier.
  • a first receiving unit configured to receive a multicast broadcast multimedia service session request from a multicast broadcast multimedia service center
  • a second receiving unit configured to receive a multicast broadcast multimedia service session request response message that carries the TEID tunnel endpoint identifier from the multicast coordination entity
  • a transmission channel creating unit configured to create a GPRS tunneling protocol user plane transmission channel according to the TEID tunnel endpoint identifier
  • An IP multicast address allocation unit is configured to allocate an IP multicast address for the multicast broadcast service session request.
  • An evolved base station according to an embodiment of the present invention, where the evolved base station includes:
  • a receiving unit configured to receive a multicast broadcast multimedia service session request that carries an IP multicast address and a TEID tunnel endpoint identifier
  • An SAE/LTE evolution network includes a multicast broadcast multimedia service gateway and an evolved base station:
  • the multicast broadcast multimedia service gateway is configured to obtain an IP multicast address and a tunnel end identifier TEID;
  • the evolved base station is configured to acquire the tunnel endpoint identifier TEID and the IP multicast address, and create a GPRS tunneling protocol user plane transmission channel according to the tunnel endpoint identifier TEID.
  • the multicast broadcast multimedia service gateway allocates a TEID tunnel endpoint identifier for the multicast broadcast multimedia service session corresponding to the multicast broadcast multimedia service session request, or requests the multicast broadcast multimedia service session through the multicast coordination entity.
  • the corresponding multicast broadcast multimedia service session allocates the TEID tunnel endpoint identifier, and the multicast broadcast multimedia service gateway creates the same GPRS tunnel protocol user plane transmission channel corresponding to each evolved base station based on the allocated TEID tunnel endpoint identifier, and bins the user plane data.
  • the processing of the package reduces the processing load of the system.
  • FIG. 2 is a schematic structural diagram of a first embodiment of a SAE/LTE evolution network according to the present invention
  • FIG. 3 is a schematic diagram of a first embodiment of a multicast broadcast multimedia service gateway according to the present invention
  • FIG. 4 is a schematic diagram of an embodiment of an evolved base station according to the present invention
  • FIG. 5 is a schematic structural diagram of a second embodiment of a SAE/LTE evolution network according to the present invention.
  • FIG. 6 is a schematic diagram of a second embodiment of a multicast broadcast multimedia service gateway according to the present invention
  • FIG. 7 is a schematic diagram of an embodiment of a multicast coordination entity according to the present invention
  • FIG. 8 is a schematic diagram of a first embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention
  • 9 is a schematic diagram of a second embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention
  • FIG. 10 is a schematic diagram showing the composition of a third embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention. detailed description
  • the SAE/LTE evolution network mainly includes a multicast broadcast multimedia service center 11, a multicast broadcast multimedia service gateway 12, and an evolved base station 13, which are respectively described in detail below:
  • the multicast broadcast multimedia service center 11 is configured to provide multicast broadcast multimedia services.
  • the function definition of the multicast broadcast multimedia service center 11 is the same as that of the prior art, and details are not described herein.
  • the multicast broadcast multimedia service gateway 12 is configured to receive a multicast broadcast multimedia service session request from the multicast broadcast multimedia service center 11, and request a multi-corresponding multicast broadcast multimedia service session allocation for the multicast broadcast multimedia service session request
  • the IP multicast address and the tunnel endpoint identifier TEID, and the GPRS tunneling protocol user plane transmission channel is created based on the TEID, and the multicast broadcast multimedia service session request carrying the IP multicast address and the TEID is sent to each evolved base station.
  • FIG. 3 it is a schematic diagram of a first embodiment of a multicast broadcast multimedia service gateway according to the present invention.
  • the multicast broadcast multimedia service gateway 12 mainly includes:
  • the receiving unit 121 is configured to receive a multicast broadcast service session request.
  • the session request further includes attribute information related to the MBMS service, where the attribute information includes a temporary mobile group identifier (TMGI), a session identifier (Stage Identity), an MBMS RAB parameter, a service service area, and the like.
  • TMGI temporary mobile group identifier
  • Stage Identity session identifier
  • MBMS RAB session identifier
  • the transmission channel creating unit 122 is configured to allocate a TEID for the multicast broadcast service session corresponding to the multicast broadcast service session request, and create a GPRS tunneling protocol user plane transmission channel based on the TEID.
  • the transmission channel creating unit 122 mainly includes:
  • the tunnel endpoint identifier TEID allocating unit 1221 is configured to allocate a TEID for the multicast broadcast service session corresponding to the multicast broadcast service session request.
  • the transmission channel creation execution unit 1222 is configured to create a GPRS tunneling protocol user plane transmission channel according to the TEID assigned by the tunnel endpoint identifier TEID allocation unit 1221.
  • the created GPRS tunneling protocol user plane transmission channel identifies the unique identifier through the corresponding TEID tunnel endpoint.
  • the voice and video service includes both a voice session and a video session.
  • the multicast broadcast multimedia service gateway needs to separately allocate corresponding TEID tunnel endpoint identifiers to uniquely identify each session.
  • the IP multicast address allocation unit 123 is configured to allocate an IP multicast address for the multicast broadcast service session request.
  • the sending unit 124 is configured to send, to the evolved base station eNB, a multicast broadcast multimedia service session request that carries the IP multicast address and the TEID.
  • the evolved base station 13 is configured to receive a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID, save the IP multicast address, acquire the TEID, and obtain the TEID based on the TEID Create a GPRS tunneling protocol user plane transmission channel.
  • FIG. 4 it is a schematic diagram of an embodiment of an evolved base station according to the present invention.
  • the evolved base station 13 mainly includes:
  • the receiving unit 131 is configured to receive a multicast broadcast multimedia service session request carrying an IP multicast address and a TEID.
  • the session request further includes attribute information related to the MBMS service.
  • the eNB After receiving the multicast broadcast service session request, the eNB saves the attribute information related to the MBMS service and creates a service session context.
  • the transmission channel creating unit 132 is configured to save the IP multicast address, obtain the TEID, and create a GPRS tunneling protocol user plane transmission channel based on the TEID.
  • the eNB allows to create a corresponding bearer for the MBMS service session corresponding to the multicast broadcast multimedia service session request, allocate the resources necessary for the MBMS service bearer, and save the IP multicast address, and the TEID Establish an association relationship with the corresponding GPRS tunneling protocol user plane transmission channel.
  • the TEID described in the embodiment of the invention must satisfy the following conditions:
  • the multicast broadcast multimedia service gateway MBMS GW must construct different TEIDs for different MBMS services or sessions. From the perspective of the MBMS GW, a GTP-U instance needs to be generated for each service or session.
  • the eNB can receive data of different services delivered by different MBMS GWs at the same time.
  • the TEIDs of different MBMS GWs for different service configurations are not allowed to be the same.
  • the TEID of the unicast service on the eNB is allocated by the eNB itself.
  • the solution described in the embodiment of the present invention is that the MBMS GW allocates the TEID on the receiving end node of the MBMS service, that is, the eNB, so the eNB is required to be a single
  • the TEID assigned by the broadcast service and the TEID allocated by the MBMS GW for the MBMS service cannot collide on the eNB node.
  • the TEID is specified by four bytes.
  • one bit or a few bits may be selected to indicate that the GPRS protocol tunnel is Is used to transmit unicast service or MBMS service, for example, with the highest bit, 0 is the GPRS protocol tunnel allocated for unicast service, 1 is the GPRS protocol tunnel allocated for multicast service; or 2 bits are used to identify , 00 represents a tunnel allocated for unicast traffic, and 01 represents a tunnel allocated for MBMS services. This does not cause the TEID allocated by the eNB node for the unicast service and the TEID allocated by the MBMS GW for the MBMS service to collide on the eNB node.
  • some of the bits may be reserved to indicate the identity of the MBMS GW node, thus requiring identification of each MBMS GW node within the network range. only one.
  • TEID construction As shown in Table 1, an example of TEID construction is described in the embodiment of the present invention, wherein a maximum of 1 or 0 indicates that the tunnel identifier is allocated for the MBMS service, and the 16th to 30th bits indicate that different MBMS GW nodes are distinguished.
  • the identifier, the remaining 0 - 15 bits represent the unique sequence number generated for a particular service or session.
  • the method of generating a unique sequence number is by using the singly linked list described above.
  • bits of different positions of bits may be used to indicate the identity of the MBMS GW node, or bits of different locations of other lengths may be used to indicate the sequence numbers of different services.
  • one bit or some bits are reserved to represent The GPRS protocol tunnel is used to transmit unicast services or MBMS services, and will not be described here.
  • TMGI PLMN identity (3 bytes) + Service ID (3 bytes), wherein the PLMN is public land.
  • Pubic Land Mobile Network even if the MBMS service is from a different PLMN, or different MBMS services are transmitted through different MBMS GWs, can use the TMGI directly to distinguish the TEID allocated for the MBMS service without causing a collision. Since TMGI occupies 6 bytes, it is necessary to extend the length of the TEID.
  • the BM-SC when a service contains multiple sessions (such as voice and video services including voice sessions and video sessions), the BM-SC also assigns a session identifier Session Identity (1 byte) to identify a certain service. For a particular session, and different sessions establish their own tunnels, so different TEIDs need to be assigned to different sessions. Since Session Identity is unique in a service, it can also be borrowed to construct a unique TEID without causing a conflict. Directly using this identifier to construct a TEID also requires extending the length of the TEID.
  • the TEID is expanded to 8 bytes, the highest bit is 1 or 0, indicating that the tunnel identifier is allocated for the MBMS service, the other bits of the highest byte are reserved bits, and the 8th - 55th bits are used for services.
  • the temporary mobile group identifier is filled with TMGI, and the 0th-7th digit is filled with the identifier of the session of the service, that is, the Session ID.
  • the byte position filled by the temporary mobility group identifier TMGI and the Session ID and the length and location of the bits of the unicast service or the MBMS service can be combined with the table.
  • the difference described in the second is different. For example, reserve a minimum of one byte and use the least significant bit to indicate whether the tunnel identifier is allocated for unicast or MBMS services, TMGI is padded at 16 - 63 bits, Session ID is padded at 8 - 15 bits, or TMGI is padded at 8 - 55 Bit, Session ID is padded in bits 56 - 63, or use other padding formats. 63 55 47 39 31 23 15 7 0
  • the SAE/LTE evolution network mainly includes a multicast broadcast multimedia service center 21, a multicast broadcast multimedia service gateway 22, a multicast coordination entity 24, and an evolved base station 23, which are respectively described in detail below:
  • the multicast broadcast multimedia service center 21 is configured to provide a multicast broadcast multimedia service.
  • the function definition of the multicast broadcast multimedia service center 21 is the same as that of the prior art, and details are not described herein.
  • the multicast broadcast multimedia service gateway 22 is configured to receive a multicast broadcast multimedia service session request from the multicast broadcast multimedia service center 21, and request a corresponding multicast broadcast multimedia service session for the multicast broadcast multimedia service session request An IP multicast address is assigned, and a multicast broadcast multimedia service session request carrying the IP multicast address is sent to the multicast coordination entity 24.
  • FIG. 7 is a schematic diagram of a second embodiment of a multicast broadcast multimedia service gateway according to the present invention.
  • the multicast broadcast multimedia service gateway 22 mainly includes:
  • the first receiving unit 221 is configured to receive a multicast broadcast multimedia service session request from the multicast broadcast multimedia service center 21.
  • the session request further includes attribute information related to the MBMS service, where the attribute information includes a temporary mobile group identifier (TMGI), a session identifier (Stage Identity), an MBMS RAB parameter, a service service area, and the like.
  • TMGI temporary mobile group identifier
  • Stage Identity session identifier
  • MBMS RAB MBMS RAB parameter
  • service service area a service service area
  • the second receiving unit 223 is configured to receive a multicast broadcast multimedia service session request response message that carries the tunnel endpoint identifier TEID from the multicast coordination entity.
  • the transmission channel creating unit 222 is configured to create a GPRS tunneling protocol user plane transmission channel according to the tunnel endpoint identifier TEID.
  • the IP multicast address allocation unit 224 is configured to allocate an IP multicast address for the multicast broadcast service session request.
  • the sending unit 225 is configured to send, to the multicast coordination entity 24, a multicast broadcast multimedia session request that carries the IP multicast address.
  • the multicast coordination entity 24 is configured to receive a multicast broadcast multimedia service session request from the multicast broadcast multimedia service gateway 22 that carries the IP multicast address, save the IP address, and broadcast the multimedia for the multicast
  • the multicast broadcast multimedia service session corresponding to the service session request is assigned a TEID
  • the multicast broadcast multimedia service session request response message carrying the TEID is sent to the multicast broadcast multimedia service gateway 22, and the bearer is sent to each evolved base station 23.
  • FIG. 7 is a schematic diagram of an embodiment of a multicast coordination entity of the present invention.
  • the multicast coordination entity 24 mainly includes:
  • the receiving unit 241 is configured to receive a multicast broadcast multimedia service session request that carries an IP multicast address from the multicast broadcast multimedia service gateway.
  • the multicast coordination entity MCE when the multicast coordination entity MCE receives the multicast broadcast service session request, it will IP the multicast address and create a service session context.
  • the tunnel endpoint identifier TEID allocation unit 242 is configured to allocate a TEID to the multicast broadcast multimedia service session requesting multiple corresponding multicast broadcast multimedia services.
  • the construction method of the TEID is similar to the previous description, and is not mentioned here.
  • the first sending unit 243 is configured to send, to the multicast broadcast multimedia service gateway, a multicast broadcast multimedia service session request response message carrying the TEID.
  • the second sending unit 244 is configured to send, to each evolved base station, a multicast broadcast multimedia service session request that carries the IP multicast address and the TEID.
  • the evolved base station 23 is configured to receive a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID, save the IP multicast address, obtain the TEID, and create a GPRS tunneling protocol based on the TEID. User plane transmission channel.
  • the evolved base station 23 is the same as the foregoing evolved base station 13, and is not further described herein.
  • FIG. 8 is a schematic diagram showing the composition of a first embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention.
  • the method for creating a multicast broadcast multimedia service user plane transmission channel to be described in this embodiment corresponds to the SAE/LTE evolved network described in the first embodiment of the SAE/LTE evolved network of the present invention, where the SAE/LTE evolved network includes Multicast broadcast multimedia service center EBM-SC, MBMS GW, and eNB, wherein the MBMS GW is composed of a multicast broadcast multimedia gateway user plane protocol entity MBMS GW-UP and a multicast broadcast multimedia gateway control plane protocol entity MBMS GW-CP,
  • the embodiment mainly includes the following steps:
  • Step sllOl the EBM-SC sends a multicast broadcast multimedia service session request to the MBMS GW-CP.
  • Step sll02 the MBMS GW-CP creates a session context and saves the attribute information related to the MBMS service.
  • the attribute information includes a Temporary Mobile Group Identifier (TMGI), a Session Identity (Stage Identity), an MBMS RAB Parameter, a Service Service Area, and the like.
  • Step sll03 the MBMS GW-CP sends the multicast broadcast multimedia service session request to the MBMS GW-UP. If the network is deployed on the same NE node, the interface between them is the internal interface.
  • the MBMS GW-CP logical entity and the MBMS GW-UP logical entity have different network element nodes in the network, and the interface between them is an external interface.
  • Step si 104 The MBMS GW-UP creates a session context, allocates an IP multicast address and a TEID, and creates a GPRS tunneling protocol user plane transmission channel based on the TEID.
  • Step sll05 the MBMS GW-UP sends a multicast broadcast multimedia service session request response carrying the IP multicast address and the TEID to the MBMS GW-CP.
  • Step si 106 The MBMS GW-CP sends a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID to the eNB.
  • Step si 107 The eNB creates a session context, saves an IP multicast address, obtains a TEID, and creates a GPRS tunnel user plane transmission channel based on the TEID.
  • Step s110 The eNB sends a multicast broadcast multimedia service session request response to the MBMS GW-CP.
  • the eNB sends a multicast broadcast multimedia service session request success response message to the MBMS GW-CP, otherwise, a failure response message is sent.
  • the failure response message is optional.
  • the step s1108 is also optional, that is, the step s1108 may not be needed in a specific implementation.
  • Step si 109 The eNB that successfully creates the GPRS tunneling protocol user plane transmission channel sends an IGMP Join message (Internet Group Message Protocol join, Internet Group Management Protocol Join Request message) to the MBMS GW-UP.
  • IGMP Join message Internet Group Message Protocol join, Internet Group Management Protocol Join Request message
  • FIG. 9 is a schematic diagram of a second embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention. Includes the following steps:
  • Step sl201 the EBM-SC sends a multicast broadcast multimedia service session request to the MBMS GW-CP.
  • Step sl202 the MBMS GW-CP creates a session context, and saves the attribute information related to the MBMS service.
  • step sll02 it is similar to the step sll02, and details are not described herein again.
  • Step sl203 the MBMS GW-CP multicasts the multimedia service session request to the MBMS GW-UP.
  • step sll03 it is similar to the step sll03, and details are not described herein again.
  • Step s 1204 the MBMS GW-UP creates a session context, assigns an IP multicast address and a TEID, and creates a GPRS tunneling protocol user plane transmission channel based on the TEID.
  • Step sl205 MBMS GW-UP sends an IP multicast address to the MBMS GW-CP and
  • Step sl206 The MBMS GW-CP sends a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID to the multicast coordination entity MCE.
  • the multicast broadcast multimedia service session request further carries attribute information related to the multicast broadcast multimedia service session.
  • Step sl207 The multicast coordination entity MCE sends a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID to the eNB.
  • the multicast broadcast multimedia service session request may carry other additional parameter information, such as SFN (Single Frequency Network) resource configuration information.
  • SFN Single Frequency Network
  • the eNB creates a session context, saves an IP multicast address, acquires a TEID, and creates a GPRS tunnel user plane transmission channel based on the TEID.
  • Step sl209 The eNB sends a multicast broadcast multimedia service session request response to the MBMS GW-CP.
  • the eNB sends a multicast broadcast multimedia service session request success response message to the MBMS GW-CP, otherwise, a failure response message is sent.
  • the failure response message is optional.
  • the step sl209 is also optional, that is, the step sl209 may not be needed in a specific implementation.
  • Step sl210 The eNB that successfully creates the GPRS tunneling protocol user plane transmission channel sends an IGMP join message to the MBMS GW-UP.
  • the message is optional, that is, the step sl210 may not be needed in a specific implementation.
  • FIG. 10 it is a schematic diagram of a third embodiment of a method for creating a user plane transmission channel of a multicast broadcast multimedia service according to the present invention. Includes the following steps:
  • Step sl301 The EBM-SC sends a multicast broadcast multimedia service session request to the MBMS GW-CP. Step sl302, the MBMS GW-CP creates a session context and saves the attribute information related to the MBMS service.
  • step sll02 it is similar to the step sll02, and details are not described herein again.
  • Step sl303 the MBMS GW-CP multicasts the multimedia service session request to the MBMS GW-UP.
  • step sll03 it is similar to the step sll03, and details are not described herein again.
  • Step sl304 MBMS GW-UP creates a session context and assigns an IP multicast address.
  • Step si 305 the MBMS GW-UP sends a multicast broadcast multimedia service session request response carrying the IP multicast address to the MBMS GW-CP.
  • Step s1306 the MBMS GW-CP sends a multicast broadcast multimedia service session request carrying the IP multicast address to the multicast coordination entity MCE.
  • the multicast broadcast multimedia service session request further carries attribute information related to the multicast broadcast multimedia service session.
  • Step S1307 The multicast coordination entity MCE creates a session context, saves an IP multicast address, and allocates a TEID.
  • Step S1308 The multicast coordination entity MCE sends a session request response carrying the TEID to the MBMS GW-CP.
  • Step si 309 the MBMS GW-CP sends a message carrying the identifier of the TEID tunnel endpoint to the MBMS GW-UP.
  • Step sl310 the MBMS GW-UP saves the TEID, and creates a GPRS tunnel user plane transmission channel based on the TEID.
  • Step sl311 The multicast coordination entity MCE sends a multicast broadcast multimedia service session request carrying the IP multicast address and the TEID to the eNB.
  • Step sl312 The eNB creates a session context, saves an IP multicast address, acquires a TEID, and creates a GPRS tunnel user plane transmission channel based on the TEID.
  • Step s113 The eNB sends a multicast broadcast multimedia service session request response to the MBMS GW-CP.
  • the eNB sends a multicast broadcast multimedia service session request success response message to the MBMS GW-CP, otherwise, a failure response message is sent.
  • the failure response message is optional.
  • the step S1313 is also optional, that is, the step sl313 may not be needed in a specific implementation.
  • the eNB that successfully creates the GPRS tunneling protocol user plane transmission channel sends an IGMP join message to the MBMS GW-UP.
  • the message is optional, ie the step sl314 may not be needed in a specific implementation.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé pour créer un canal de transmission de plan utilisateur du Service de Diffusion/ Multidiffusion Multimédia (MBMS). Le procédé comprend les opérations suivantes : la passerelle de service de diffusion/ multidiffusion multimédia obtient l'identifiant de point d'extrémité de tunnel (TEID) et l'adresse de multidiffusion IP, et crée le canal de transmission de plan utilisateur de protocole de tunnellisation GPRS sur la base de TEID ; le nœud B évolué obtient le TEID et l'adresse de multidiffusion IP, et crée le canal de transmission de plan utilisateur de protocole de tunnellisation GPRS sur la base de TEID. L'invention porte également sur un réseau évolué SAE/LTE. Le réseau comprend la passerelle de Service de Diffusion/ Multidiffusion Multimédia, l'Entité de Coordination Multicellule/Multidiffusion, et le Nœud B évolué.
PCT/CN2008/072404 2007-09-21 2008-09-18 Procédé pour créer un canal de transmission de plan utilisateur du service de diffusion/multidiffusion multimédia WO2009039772A1 (fr)

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CN200710030366.3A CN101394577B (zh) 2007-09-21 2007-09-21 组播广播多媒体业务用户面传输通道创建方法

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CN111866758B (zh) * 2020-07-17 2023-03-28 腾讯科技（深圳）有限公司 多播广播业务的通信方法、装置、介质及电子设备
CN111866755B (zh) * 2020-07-17 2023-03-28 腾讯科技（深圳）有限公司 多播广播业务的通信方法、装置、介质及电子设备

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