WO2010127564A1 - 多媒体广播组播业务中获取接入信息、计费的方法和*** - Google Patents

多媒体广播组播业务中获取接入信息、计费的方法和*** Download PDF

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Publication number
WO2010127564A1
WO2010127564A1 PCT/CN2010/070157 CN2010070157W WO2010127564A1 WO 2010127564 A1 WO2010127564 A1 WO 2010127564A1 CN 2010070157 W CN2010070157 W CN 2010070157W WO 2010127564 A1 WO2010127564 A1 WO 2010127564A1
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WIPO (PCT)
Prior art keywords
mbms
information
session
request message
access information
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PCT/CN2010/070157
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English (en)
French (fr)
Inventor
郭文洁
王志海
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/258,237 priority Critical patent/US9112716B2/en
Priority to EP10771967.6A priority patent/EP2416525B1/en
Publication of WO2010127564A1 publication Critical patent/WO2010127564A1/zh

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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
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1485—Tariff-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/43—Billing software details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/57—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for integrated multimedia messaging subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8022—Determining tariff or charge band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast

Definitions

  • the present invention relates to a communication network, and in particular, to a method and system for obtaining access information and charging in a multimedia broadcast multicast service. Background technique
  • the multimedia broadcast multicast service operating in the mobile communication network refers to the channel for establishing service data by using multicast or broadcast technology in the existing wireless communication network, thereby distributing the service completion from one point to multiple points.
  • Multimedia Broadcast/Multicast Service (MBMS) defined in the current 3rd Generation Partnership Project (3GPP) wireless communication standards organization and evolved multimedia broadcast multicast Business (evolved MBMS, called eMBMS) is such a business.
  • 3GPP 3rd Generation Partnership Project
  • eMBMS evolved multimedia broadcast multicast Business
  • the defined radio access technologies related to MBMS and eMBMS so far, include the Universal Terrestrial Radio Access Network (UTRAN) and the evolved universal terrestrial land.
  • the Broadcast Multicast Service Center (Broadcast Multicast Service Center) is the source of service data, and all data is sent from the BM-SC to other network nodes.
  • the MBMS gateway (MBMS GW) is the gateway of the service data of the mobile communication core network, and is responsible for receiving all the MBMS data sent from the service network element, and then forwarding to the subsequent network node, which is called according to the upper and lower positions of the network map. Forward to the downstream node.
  • the information in these signaling is configured in the BM-SC (or its network management system).
  • the BM-SC sends signaling, it acquires this information and forms the parameters of the session signaling.
  • the existing eMBMS session start message process includes the following steps: Step 201: The BM-SC sends an MBMS session start request message to each MBMS GW.
  • the MBMS session start request message may carry a session type parameter and Address class parameters.
  • the session class parameters include: QoS, MBMS service area list, MBMS session identifier, estimated session duration, and destination network identifier (MBMS xG indicator).
  • the address parameters include: a list of node addresses (including the address of the MBMS GW, and a list of downlink nodes of the MBMS GW), etc.;
  • Step 202 the MBMS GW saves the parameter information in the message, and returns a session start response message to the BM-SC;
  • Step 203 The MBMS GW sends an MBMS session start request message to the MME.
  • Step 204 the MME saves the information in the message, and sends a session start request message to the E-UTRAN;
  • Step 205 The E-UTRAN determines whether it has a cell belonging to the service area, and returns a session start response message.
  • Step 206 after receiving all session start response messages from the E-UTRAN side, the MME sends a session start response message to the MBMS GW;
  • the MBMS GW activates the charging data record (CDR) data collection function, after receiving the session start response message, the MBMS GW sends a start charging request message (ACR[Start]) to the charging related network element;
  • CDR charging data record
  • Step 207 Reserve radio resources and establish a service tunnel, and send data.
  • the existing eMBMS session end process includes the following steps: Step 301: The BM-SC sends an MBMS session end request message to the MBMS GW.
  • the message carries information such as a session identifier, a service identifier, and a downlink node list.
  • the MBMS GW replies to the session end response message to the BM-SC, and releases the information about the service that is saved by itself;
  • Step 302 The MBMS GW forwards the MBMS session end request message to the MME that received the session start message, and the MME returns a session end response message, and releases the information about the service that is saved by itself;
  • the MBMS GW activates the CDR data collection function, after receiving the session end response message, the MBMS GW sends an end charging request message (ACR[Stop]) to the Charging Data Function (called a CDF);
  • Step 303 The MME forwards the MBMS session end request message to the E-UTRAN, and the E-UTRAN returns a session end response message.
  • Step 304 the radio resource is released.
  • SA service area
  • SA IDs service area identifiers
  • cell IDs series of radio cells
  • a multimedia broadcast multicast service can have one or more SAs to define the scope.
  • the multimedia broadcast multicast service is from the service source to the wireless access device (such as The downlink channel of the base station is also basically determined. Therefore, for an SA, the address of each downstream node is also determined. It should be noted that considering the huge number of wireless access devices, sending so many downlink node addresses as signaling is overwhelming for signaling. Therefore, the downlink node address of the last stage is not the wireless access device, but is retained to the upper level of the wireless access device. The upper layer sends the session signaling to all connected wireless access devices. If the access device does not belong to the SA, it returns an error message. If it belongs to the SA, it returns a message for successfully establishing the channel.
  • the area of the SA is generally configured in the wireless access device, that is, which cells of the wireless device belong to which SA, and the wireless access device is configured through.
  • the BM-SC does not need to know which cell a service is to be played in. It only needs to know the corresponding SA or SA list. Therefore, the BM-SC needs to configure its corresponding SA for each service. Also, configure all downstream node address lists.
  • E-UTRAN After the introduction of E-UTRAN, there is one more type of wireless access technology. Different types of wireless access technologies mean different wireless transmission qualities, which in turn leads to different service transmission capabilities and user experience. Compared with UTRAN and earlier wireless access technology network GERAN (GRPS ⁇ EDGE Radio Access Network), E-UTRAN has higher bandwidth and data transmission stability, adapting to higher moving speed; In hotspots to ease network congestion. In this way, different radio access technologies may correspond to different multimedia broadcast multicast services, or the same service, to achieve different service effects. The question that arises is whether wireless access technology can be used as an option for billing differentiation.
  • GERAN GRPS ⁇ EDGE Radio Access Network
  • MBMS charging of GPRS was divided into content charging and bearer charging.
  • the current charging vector is mainly the time and traffic of each service, and the charging unit is mainly in the BM-SC, that is, the service source.
  • the Serving GPRS Support Node (called SGSN) and the Gateway GPRS Support Node (GCO) are also used to collect a part of the charging vector.
  • SGSN Serving GPRS Support Node
  • GCO Gateway GPRS Support Node
  • eMBMS based on the network protocol (IP) multicast protocol is divided into two modes: broadcast and enhanced broadcast, and there is no multicast mode for users.
  • the establishment of the data channel ie, the establishment of the bearer uses the IP multicast protocol.
  • the eMBMS introduces the logical entity MBMS GW, and it can be deployed independently or deployed in the MB-SC or in conjunction with a Serving Gateway (SGW)/Packet Data Network Gateway (PGW).
  • SGW Serving Gateway
  • PGW Packet Data Network Gateway
  • the bearer charging is mainly performed on the mobile core network element, such as the MBMS GW.
  • the MBMS GW receives the relevant charging triggering event (such as an MBMS session start response message or an interval interval message), it sends the charging to the charging gateway related entity.
  • the CDF sends an accounting request message containing information such as service type, service identifier, service area, time, and traffic.
  • the current MBMS service can be sent to different radio access technology types (RAT Types) such as UTR AN and E-UTR AN, and different radio access technology types can be used for MBMS services.
  • RAT Types radio access technology types
  • Different access capabilities are provided, so that MBMS services can have different effects depending on the type of wireless access technology, and even some MBMS services can only be accessed under the type of wireless access technology with higher access capability, thus
  • the application of services and billing creates a need for differentiation of the type of radio access technology.
  • the current MBMS charging and application scheme does not propose a method for distinguishing the types of wireless access technologies.
  • the wireless access technology and its relationship with related service areas and downstream nodes are not described in the relevant technical specifications.
  • E-UTRAN has also changed the community.
  • the cell of the E-UTRAN differs from the cell of the UTRAN in numbering.
  • SA the service area SA the attributes of UTRAN and E-UTRAN. That is, the cell list included in the SA belongs to UTRAN or E-UTRAN or both, and the attributes of the radio access technology of the SA can be determined.
  • the wireless access attribute in the configuration of the SA. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a method and system for obtaining access information and charging in a multimedia broadcast multicast service, which can acquire access information as a basis for charging.
  • the present invention provides a method for obtaining access information in a multimedia broadcast multicast service MBMS, including:
  • the broadcast multicast service center BM-SC sets one or more MBMS session signalings to carry the access information, and sends the MBMS session signaling to the MBMS GW of its service area;
  • the access information includes at least radio access technology type information.
  • the above method may also have the following features:
  • the access information further includes MBMS service area information corresponding to the radio access technology type information.
  • the above method may also have the following features:
  • the access information further includes downlink node information corresponding to the service area.
  • the above method may also have the following features:
  • the BM-SC sets the MBMS session start request message to carry the access information, and sends the MBMS session start request message to the MBMS GW of the service area thereof;
  • the MBMS GW activates the charging data record CDR data collection function, the MBMS GW sets the start charging request message to carry the access information, and sends the start charging request message to the charging data function CDF.
  • the above method may also have the following features:
  • the BM-SC sets the MBMS session end request message to carry the access information, and sends the MBMS session end request message to the MBMS GW of the service area thereof;
  • the present invention provides a method for charging in a multimedia broadcast multicast service, including:
  • the BM-SC sets the charging request message to carry the access information, and sends the charging request message to the CDF;
  • the CDF generates charging record information of the current MBMS session for the BM-SC, where the charging record information includes the access information;
  • the access information includes at least radio access technology type information.
  • the above method may also have the following features:
  • the access information further includes an MBMS service area i or information corresponding to the radio access technology type information.
  • the above method may also have the following features:
  • the access information further includes downlink node information corresponding to the service area.
  • the above method may also have the following features:
  • the MBMS GW activates the CDR data collection function, after the eMBMS session starts, the MBMS GW sets the start charging request message to carry the access information, and sends the start charging request message to the CDF; information.
  • the above method may also have the following features:
  • the BM-SC sets the end charging request message to carry the access information, and sends the ending charging request message to the CDF;
  • the CDF ends recording the billing record information for the current MBMS session of the BM-SC, and generates a bill for the current MBMS session of the BM-SC, which includes the access information.
  • the above method may also have the following features:
  • the MBMS GW setting end charging request message carries the access information, and sends the ending charging request message to the CDF;
  • the CDF ends recording the billing record information for the current MBMS session of the MBMS GW, and generates a bill for the current MBMS session of the MBMS GW, including the access information.
  • the present invention provides a system for acquiring access information in a multimedia broadcast multicast service MBMS, including a BM-SC and an MBMS GW of the BM-SC service area, where the BM-SC is used for an eMBMS session.
  • a multimedia broadcast multicast service MBMS including a BM-SC and an MBMS GW of the BM-SC service area, where the BM-SC is used for an eMBMS session.
  • one or more MBMS session signalings are set to carry the access information, and the MBMS session signaling is sent to the MBMS GW.
  • the access information includes at least radio access technology type information.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information;
  • the access information further includes MBMS service area information corresponding to the radio access technology type information and downlink node information corresponding to the service area.
  • the present invention provides a system for charging in a multimedia broadcast multicast service, including a BM-SC and a CDF.
  • the BM-SC is configured to carry the access information in the setting of the charging request message after the eMBMS session starts, and send the charging request message to the CDF;
  • the CDF generates charging record information of the current MBMS session for the BM-SC, where the charging record information includes the access information;
  • the access information includes at least radio access technology type information.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information; Or the access information further includes MBMS service area information corresponding to the radio access technology type information and downlink node information corresponding to the service area.
  • the system also includes an MBMS GW of the BM-SC service area,
  • the MBMS GW is configured to, when the CDR data collection function is activated, carry the access information in the MBMS GW setting start charging request message after the eMBMS session starts, and send the start charging request message to the CDF; Record information, including the access information.
  • the BM-SC is further configured to: when the end of the eMBMS session is set, the end charging request message carries the access information, and the end charging request message is sent to the CDF;
  • the CDF is further configured to: according to the ending charging request message, end the recording of the charging record information of the current MBMS session for the BM-SC, and generate a bill for the current MBMS session of the BM-SC, where The access information is included.
  • the MBMS GW is further configured to: when the CDR data collection function is activated, the end charging request message is carried in the end of the eMBMS session, and the end charging request message is sent to the CDF;
  • the CDF is further configured to generate, according to the ending charging request message, the MBMS
  • the CDR of the MBMS session of the GW which includes the access information.
  • access information can be obtained, and the access information includes at least a radio access technology type (for example, UTRAN and E-UTRAN, etc.) as a basis for charging.
  • a radio access technology type for example, UTRAN and E-UTRAN, etc.
  • the communication operator can be provided with a charging mode that distinguishes the type of the wireless access technology, and the MBMS service area (MBMS Service Area) under different types of wireless access technologies adopt different rates. And further fine billing.
  • FIG. 1 is a schematic diagram of a network architecture of a multimedia broadcast multicast service mode
  • FIG. 2 is a flow chart of a prior art eMBMS session start process
  • FIG. 3 is a flow chart of a prior art eMBMS session end process
  • FIG. 4 is a flowchart of adding radio access technology type information in an eMBMS session starting process according to an embodiment of the present invention
  • FIG. 5 is a flowchart of adding radio access technology type information in an eMBMS session end process according to an embodiment of the present invention
  • FIG. 6 is a flowchart of adding a radio access technology type and a corresponding service area in an eMBMS session starting process according to an embodiment of the present invention. detailed description
  • the access information is added to the multimedia broadcast multicast service session signaling and the charging message sent by the BM-SC to the CDF, and the access information includes at least the type of the wireless access technology, which is used as the basis for charging.
  • the communication carrier can be provided with a charging mode that distinguishes the type of the wireless access technology, and different rates are used for the MBMS service areas under different types of the wireless access technologies, so that the charging can be further refined.
  • the present invention provides a method for obtaining access information in a multimedia broadcast multicast service MBMS, including: during an eMBMS session, a broadcast multicast service center BM-SC sets one or more MBMS session signalings to carry access information, and Transmitting the MBMS session signaling to an MBMS GW of its service area; the access information includes at least radio access technology type information.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information.
  • the access information further includes downlink node information corresponding to the service area.
  • the BM-SC sets the MBMS session start request message to carry the access information, and sends the MBMS session start request message to the MBMS GW of the service area; if the MBMS GW activates the charging data record CDR data collection function, the MBMS The GW setting start charging request message carries the access information, and sends the start charging request message to the charging data function CDF.
  • the BM-SC sets the MBMS session end request message to carry the access information, and sends the MBMS session end request message to the MBMS GW of the service area thereof;
  • the MBMS GW activates the CDR data collection function, the MBMS GW sets the end charging request message to carry the access information, and sends the end charging request message to the CDF.
  • a multimedia broadcast multicast service covers multiple devices of the wireless access technology, all the wireless access technology types need to be carried in the multimedia broadcast multicast service session signaling.
  • the type of the radio access technology carried in the session signaling may follow a plurality of corresponding service areas; each service area may also have multiple downlink nodes.
  • the SA is selected in the session signaling, and the type of the radio access technology of the service is also selected.
  • the present invention also provides a method for charging in a multimedia broadcast multicast service, including: after the eMBMS session starts, the BM-SC sets the charging request message to carry the access information, and sends the charging request message to the CDF. ;
  • the CDF generates charging record information of the current MBMS session for the BM-SC, where the charging record information includes the access information;
  • the access information includes at least radio access technology type information.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information; the access information may further include downlink node information corresponding to the service area.
  • the MBMS GW activates the CDR data collection function, after the eMBMS session starts,
  • the MBMS GW sets the start charging request message to carry the access information, and sends the start charging request message to the CDF;
  • the CDF generates charging record information of the current MBMS session for the MBMS GW, where The access information.
  • the BM-SC sets the end charging request message to carry the access information, and sends the ending charging request message to the CDF; the CDF ends recording the charging for the current MBMS session of the BM-SC. Recording information, generating a bill for the current MBMS session of the BM-SC, including the access information.
  • the MBMS GW activates the CDR data collection function, when the eMBMS session ends, the MBMS GW sets the end charging request message to carry the access information, and sends the end charging request message to the CDF; the CDF end record is for the The billing record information of the current MBMS session of the MBMS GW generates a bill for the current MBMS session of the MBMS GW, where the access information is included.
  • the present invention proposes that the BM-SC sends a charging message to the CDF, where the access information is carried, and the charging record information generated by the CDF for the BM-SC (ie, the CDR of the BM-SC) The access information is also included.
  • the charging message is sent to the CDF, which also carries the access information, and the charging information generated by the CDF for the MBMS GW also includes the access information.
  • the access information includes at least radio access technology type information, which may be: only radio access technology type information, or radio access technology type information and its corresponding MBMS service area information, or radio access technology type information.
  • the radio access technology type information proposed in the present invention follows the type and specific value defined by the 3GPP standard organization. However, it is not limited thereto, and other types and corresponding values are used in other wireless mobile network applications.
  • the process of establishing and ending the session flow and the charging process of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
  • Embodiment 1 Increasing the type of wireless access technology in the beginning of an eMBMS session
  • this embodiment adds only the wireless technology type attribute to a certain service in the configuration of the BM-SC, so that the type of the wireless access technology designed by the service is simply added in the related signaling, and the other types are not changed.
  • the attribute of the radio access technology type of the service area is added to the configuration attribute in the service area, so that the type of the radio access technology is automatically added when a service area is selected for a certain service.
  • the downlink node address list attribute of the service area may be added, that is, the service area automatically adds the attribute of the corresponding downlink node list in the signaling by configuring the corresponding downlink node list.
  • This embodiment does not limit that one service area can belong to only one wireless technology type, that is, multiple radio access technology type attributes can be simultaneously existed.
  • the session signaling flow chart after selection is shown in Figure 4.
  • the embodiments of the present invention relate to two types of radio access technologies: UTRAN and E-UTRAN, and the network elements of the corresponding core network include an SGSN and an MME, and an MBMS data gateway MBMS GW.
  • Step 401 The BM-SC sends an MBMS session start request message to each MBMS GW.
  • the MBMS session start request message carries QoS, a radio access technology type UTRAN and an E-UTRAN, an MBMS service area list, and an MBMS session.
  • Identification MBMS Session identifier
  • estimated session duration estimated session duration
  • destination network 2G/3G identifier MBMS xG indicator
  • Step 402 the MBMS GW saves the information in the message, and returns a session start response message to the BM-SC;
  • Step 402a after receiving the MBMS session start response message replied by the MBMS GW, the BM-SC sends a charging request message to the CDF; After receiving the session start response message from any one of the MBMS GWs, the BM-SC sends a start charging request message (ACR[Start]) to the CDF;
  • ACR[Start] start charging request message
  • the charging request message carries wireless access technology type information
  • the CDF generates a charging record information CDR for the MBMS session for the BM-SC, and the charging record information includes radio access technology type information.
  • the ACR [Start] message triggers the CDF to open the CDR (C-BMSC-CDR) for the BM-SC corresponding to the current MBMS session, and starts to record the charging information of the current MBMS session for the BM-SC;
  • CDF returns the charging response message to the BM-SC;
  • Step 403 The MBMS GW sends an MBMS session start request message to the MME and the SGSN, respectively.
  • the session start request message in this step may be forwarded to the MME and the SGSN according to the received message; or the type of the radio access technology may be removed and forwarded to the MME and the SGSN according to the prior art; or The type carrying the E-UTRAN is sent to the MME, and the type carrying the UTR AN is sent to the SGSN, and other parameters are unchanged.
  • These three scenarios can be implemented separately as three embodiments, and are not described separately for the purpose of the problem to be solved in the present invention.
  • Step 404 The MME saves the information in the message, and sends a session start request message to the E-UTRAN. If the step 403 carries the radio access technology type parameter, the message may be removed or may be reserved.
  • the SGSN saves the information in the message, and sends a session start request message to the UTRAN, and processes the type of the radio access technology with the MME;
  • Step 405 The E-UTRAN/UTRAN determines whether there is a cell belonging to the service area, and returns a response message of the session start request.
  • Step 406 After receiving the response message to the session start request from the E-UTRAN/UTRAN side, the MME/SGSN sends a session start response message to the MBMS GW.
  • Step 406a If the MBMS GW activates the CDR data collection function, after receiving the session start response message, the MBMS GW sends a start charging request message (ACR[Start]) to the corresponding logical function entity of the charging gateway, such as a CDF, to carry the message.
  • ACR[Start] start charging request message
  • the CDF generates, for the MBMS GW, the charging record information CDR of the current MBMS session, where the charging record information includes radio access technology type information. Specifically, the CDF opens the bill (MBMS-GW-CDR) of the session of the MBMS GW, and returns a charging response message to the MBMS GW;
  • the MBMS-GW-CDR includes radio access technology type (RAT Type) information and the like; Step 407, reserving radio resources and establishing a service tunnel, and transmitting data.
  • RAT Type radio access technology type
  • the 402a and the step 403 can be executed in parallel.
  • the CDF updates the recorded information in the C-BMSC-CDR and the MBMS-GW-CDR according to the session condition.
  • the radio access technology type information (RAT Type) proposed in the present invention follows the type and specific value defined by the 3GPP standard organization. However, it is not limited thereto, and other types and corresponding values are used in other wireless mobile network applications. This description of the following examples is valid.
  • Embodiment 2 Adding a wireless access technology type during the end of an eMBMS session
  • the BM-SC initiates a session end signaling procedure.
  • Step 501 The BM-SC sends an MBMS session end request message to the MBMS GW.
  • the message carries information such as a session identifier and a service identifier, a radio access technology type, a service area, and a downlink node list.
  • the MBMS GW replies to the session end response message to the BM- SC, and release your own saved information about this session;
  • Step 501a after receiving the MBMS session end request response message replied by the MBMS GW, the BM-SC sends an end charging request message to the CDF;
  • the BM-SC sends an end-of-accounting request message carrying radio access technology type information; After receiving the session end request response message from any one of the MBMS GWs, the BM-SC sends an end charging request message (ACR[Stop]) to the CDF;
  • the CDF ends recording the billing record information for the current MBMS session of the BM-SC, and generates a final bill for the current MBMS session for the BM-SC. Specifically: the CDF closes the CDR (C-BMSC-CDR) of the session that has been opened for the BM-SC (ie, generates the final CDR C-BMSC for the current MBMS session of the BM-SC). CDR), returning a charging response message to the BM-SC; wherein the CDR includes wireless access technology type information;
  • Step 502 The MBMS GW forwards the MBMS session end request message to the MME/SGSN that has previously received the session start message, and the MME/SGSN respectively returns a response message, and the MBMS GW receives the information about the service saved by itself after receiving the MBMS GW;
  • Step 502a if the MBMS GW activates the CDR data collection function, after receiving the session end response message, the MBMS GW sends an end charging request message (ACR[Stop]) to the CDF; the ending charging request message includes the type of the wireless access technology. ( RAT Type );
  • the CDF closes the bill (MBMS-GW-CDR) of the session that has been opened for the MBMS GW, which includes the radio access technology type (RAT Type) and returns a billing response message to the MBMS GW.
  • RAT Type radio access technology type
  • Step 503 The MME/SGSN respectively forwards the information to the E-UTRAN/UTRAN, and the E-UTRAN/UTRAN returns a session end response message, and the MME/SGSN releases the local session information saved by itself after receiving the message;
  • Step 504 the radio resource is released.
  • Step 501a may be performed in parallel with step 502, and step 502a may be performed in parallel with step 503.
  • the processing of the radio access technology type may not be carried in the session end information, that is, the original technology is retained.
  • the MBMS GW sends an end charging request to the CDF, The type value can be obtained from the saved information.
  • Embodiment 3 Add a radio access technology type and a corresponding service area and a corresponding downlink node list in the beginning of the eMBMS session.
  • the attribute of the radio access technology type of the service area is added in the service area, and the attribute of the downlink node list corresponding to the service area is added. In this way, when selecting a service area for a multimedia multicast broadcast service, the selection of its radio access technology and downlink node list is automatically completed.
  • This embodiment does not allow the case where one service area has multiple radio access technology types, that is, it can only belong to one type.
  • the embodiment of the present invention is directed to a certain MBMS service, and its application scope involves two radio access technologies: UTRAN and E-UTRAN.
  • UTRAN E-UTRAN
  • SA1, SA101, and SA102 SA101 and SA102 belong to the E-UTRAN wireless technology coverage area, SA101.
  • SA101 There are downlink nodes such as MBMS GW1 and MME1, and SA102 has downlink nodes such as MBMS GW1 and MME2; SA1 belongs to UTRAN wireless technology coverage, and has downlink nodes such as MBMS GW1, SGSN1, and SGSN2.
  • the session start request sent by the BM-SC includes the service area including SA1 and SA101, which means that the UTRAN and the E-UTRAN are included, and the downlink node list including the downlink node list MBMS GW1 and the MBMS GW1: SGSN1 , SGSN2, MM1, MM2.
  • the schematic diagram of the session flow is shown in Figure 6.
  • Step 601 The BM-SC sends an MBMS session start request message to each MBMS GW.
  • the session type parameters carried in the MBMS session start request message include: QoS, MBMS Session identifier, estimated session duration (estimated session duration) ), destination network 2G/3G logo (MBMS xG indicator), etc.
  • Radio access technology type UTRAN service area S Al under UTRAN, downlink node address MBMS GW1, MBMS GW1 downlink node address list (SGSN1, SGSN2), radio access technology type E-UTRAN, E-UTRAN service area SA101, SA102, Downlink node address MBMS GW1, MBMS GW1 downlink node address list (MME1, MME2) and other information;
  • the parameters in the MBMS session start request message are grouped according to the type of the wireless technology, and may be used to reduce the transmission of the parameter information when the subsequent signaling is sent.
  • Step 602 the MBMS GW saves the parameter information in the message, and returns a session start response message to the BM-SC;
  • Step 602a after receiving the MBMS session start response message replied by the MBMS GW, the BM-SC sends a charging request message to the CDF;
  • the BM-SC After receiving the session start response message from any MBMS GW, the BM-SC sends a start charge request message (ACR[Start]) to the CDF;
  • the charging request message carries the wireless access technology type information, the corresponding service area information, and the downlink node address list information, that is,
  • Radio access technology type UTRAN Radio access technology type UTRAN, service area S A1 under UTRAN, downlink node address MBMS GW1, downlink node address list of MBMS GW1 (SGSN1, SGSN2), radio access technology type E-UTR AN, E-UTRAN Information such as the downlink node address list (MME1, MME2) of the area SA101, SA102, the downlink node address MBMS GW1, and the MBMS GW1;
  • the CDF generates a charging record information CDR for the MBMS session for the BM-SC, and the charging record information includes the above information.
  • the ACR [Start] message triggers the CDF to open the CDR (C-BMSC-CDR) for the BM-SC corresponding to the current MBMS session, and starts to record the charging information of the current MBMS session for the BM-SC;
  • the above information is included; the CDF returns a charging response message to the BM-SC;
  • Step 603 the MBMS GW sends an MBMS session start request message (including the session attribute parameter) to the MME and the SGSN in the downlink address list respectively;
  • the session start request message in this step may be in accordance with the wireless access technology.
  • the classification of the operation such as the downlink node of the UTRAN class, only needs to include the SA list under the UTRAN class.
  • signaling to the E-UTRAN may not be carried.
  • Step 604 The MME saves the session parameter information in the message, and sends the session start request message to the E-UTRAN. If the step 603 carries the radio access technology type parameter, the message may be removed or may be reserved.
  • the SGSN saves the information in the message, and sends a session start request message to the UTRAN, and processes the type of the radio access technology with the MME;
  • Step 605 The E-UTRAN/UTRAN determines whether it has a cell belonging to the service area, and returns a session start response message.
  • Step 606 after the MME/SGSN receives all the session start response message from the E-UTRAN/UTRAN side, sends a session start response message to the MBMS GW;
  • Step 606a if the MBMS GW activates the CDR data collection function, after receiving the session start response message, the MBMS GW sends a start charging request message (ACR[Start]) to the corresponding logical entity of the charging gateway, such as: CDF, which is carried in the message.
  • ACR[Start] a start charging request message
  • CDF Radio access technology type and corresponding service area and downlink node address list information
  • the CDF generates, for the MBMS GW, the charging record information CDR of the current MBMS session, where the charging record information includes a radio access technology type, a corresponding service area, and a downlink node address list information. Specifically, the CDF opens the CDR (MBMS-GW-CDR) of the session for the MBMS GW, and returns a charging response message to the MBMS GW;
  • the MBMS-GW-CDR includes a radio access technology type and a corresponding service area, and a downlink node address list information, and the like;
  • Step 607 Reserve radio resources and establish a downlink channel to transmit data.
  • the 602a and the step 603 can be executed in parallel.
  • the CDF updates the recorded information in the C-BMSC-CDR and the MBMS-GW-CDR according to the session condition.
  • a system for obtaining access information in a multimedia broadcast multicast service includes a BM-SC and an MBMS GW of the BM-SC service area, where the BM-SC is configured to set one or more MBMS session signalings to carry access information during an eMBMS session, and send the MBMS session signaling Giving the MBMS GW;
  • the access information includes at least radio access technology type information.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information; the access information may further include downlink node information corresponding to the service area.
  • the system for charging in the multimedia broadcast multicast service includes a BM-SC, a CDF, and an MBMS GW of the BM-SC service area, where the BM-SC is configured to set an accounting request message after the eMBMS session starts.
  • the access information further includes MBMS service area information corresponding to the radio access technology type information; the access information may further include downlink node information corresponding to the service area.
  • the MBMS GW is configured to, when the CDR data collection function is activated, carry the access information in the MBMS GW setting start charging request message after the eMBMS session starts, and send the start charging request message to the CDF; Record information, including the access information.
  • the BM-SC is further configured to: when the end of the eMBMS session is set, the end charging request message carries the access information, and the end charging request message is sent to the CDF;
  • the CDF is further configured to: according to the ending charging request message, end the recording of the charging record information of the current MBMS session for the BM-SC, and generate a bill for the current MBMS session of the BM-SC, where The access information is included.
  • the MBMS GW is also used when eMBMS is used when its CDR data collection function is activated.
  • the end of the session, the end of the charging request message carries the access information, and the end of the charging request message is sent to the CDF; the CDF is further configured to generate, according to the ending charging request message, the MBMS The CDR of the MBMS session of the GW, which includes the access information.
  • the communication provider can help the content provider to perform finer and more flexible bearer-side charging for the content provider.
  • RAT Type radio access technology type information
  • MBMS service area the communication provider can help the content provider to perform finer and more flexible bearer-side charging for the content provider.
  • the eMBMS bearer offline charging method for the content provider in the broadcast mode of the eMBMS is provided by the foregoing embodiment of the present invention, so that the communication carrier can perform charging on the bearer side of the content provider in the eMBMS service. And refining to allow the communication carrier to set different rates according to different radio access technologies to correspond to different MBMS service area lists for charging, thereby helping the communication carrier and the content provider to perform fee clearing for eMBMS service development. .

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Abstract

本发明公开一种多媒体广播组播业务（MBMS）中获取接入信息的方法和***， 该方法包括：eMBMS会话过程中，广播组播业务中心（BM-SC）设置一个或多个MBMS会话信令中携带接入信息，并将所述MBMS会话信令发送给其业务区域的MBMS网关；所述接入信息至少包括无线接入技术类型信息。本发明还公开了一种多媒体广播组播业务中计费的方法和***。本发明方法和***能够以包括无线接入技术类型的接入信息为计费的依据，为通信运营商提供区分无线接入技术类型的计费方式，对应不同无线接入技术类型下的MBMS业务区域采用不同的费率，从而进一步精细化计费。

Description

多媒体广播组播业务中获取接入信息、 计费的方法和*** 技术领域
本发明涉及通信网络， 尤其涉及一种多媒体广播组播业务中获取接入 信息、 计费的方法和***。 背景技术
移动通信网络里运作的多媒体广播组播业务是指在现有的无线通信网 络中， 利用组播 ( Multicast )或者广播（Broadcast )技术建立业务数据的通 道， 从而将业务完成从一点到多点分发的业务模式。 在当前的 第三代合 作伙伴计划 ( 3rd Generation Partnership Project, 筒称 3GPP )无线通信标准 组织中定义的多媒体广播组播业务（ Multimedia Broadcast/Multicast Service , 筒称为 MBMS ) 以及演进的多媒体广播组播业务（evolved MBMS , 筒称 eMBMS ), 都是这样的业务。 针对 3GPP定义的无线通信网络， 其定义的和 MBMS及 eMBMS相关的无线接入技术， 到目前为止， 包括通用陆地无线 接入网 （ Universal Terrestrial Radio Access Network, 筒称为 UTRAN ) 以及 演进的通用陆地无线接入网 ( evolved Universal Terrestrial Radio Access Network, 筒称为 E-UTRAN )。
以 eMBMS为例， 3GPP定义的多媒体广播组播业务模式的网络架构如 图 1所示。 其中广播组播业务中心（ Broadcast Multicast - Service Centre, 筒 称为 BM-SC )是业务数据的发源地， 所有数据从 BM-SC向其他网络节点 发送。 MBMS网关 （ MBMS GW )是移动通信核心网的业务数据的网关， 负责所有从业务网元发送来的 MBMS数据的接收， 并进而转发到后续的网 络节点， 我们按照网络图的上下位置， 称为转发到下行节点。
为了建立整个业务的通道， 在数据发送前夕， 需要从业务源发送相关 的信令， 到下行通道的各个节点， 以告知各个节点该业务的会话标识， 标 识该业务的组播地址信息， 各个下行节点的地址， 服务质量 （Quality of Service, 筒称为 QoS ), 发起时间， 业务区域等等信息。 这个信令目前定义 为 MBMS会话开始信令。 业务结束时的信令为 MBMS会话结束信令， 以 释放通道。
这些信令中的信息是在 BM-SC (或其网管***）中配置的。 BM-SC在 发送信令时， 获取这些信息， 组成会话信令的参数。
关于会话开始和会话结束信令的定义， 参见图 2和图 3。
图 2和图 3中均以 eMBMS为例， 描述会话开始和会话结束消息的发 送方法。
如图 2所示， 为现有的 eMBMS会话开始消息流程， 包括如下步骤： 步骤 201 , BM-SC发送 MBMS会话开始请求消息给各个 MBMS GW; 所述 MBMS会话开始请求消息可以携带会话类参数以及地址类参数。 其中， 会话类参数包括： QoS、 MBMS 业务区域列表、 MBMS 会话标识 ( MBMS Session identifier )、预计会话持续时间 ( estimated session duration ) 以及目的网络标识（MBMS xG indicator )等信息； 地址类参数包括： 下行 节点地址列表（包括 MBMS GW的地址，以及 MBMS GW的下行节点列表 ) 等；
步骤 202 , MBMS GW保存消息中的参数信息， 并回复会话开始响应 消息给 BM-SC;
步骤 203 , MBMS GW发送 MBMS会话开始请求消息给 MME;
步骤 204, MME保存消息中的信息， 并将会话开始请求消息发送给 E-UTRAN;
步骤 205 , E-UTRAN判断自己是否有属于该业务区域的小区， 返回会 话开始响应消息； 步骤 206, 当 MME从 E-UTRAN侧收到所有会话开始响应消息后， 将 会话开始响应消息发送给 MBMS GW;
如果 MBMS GW激活计费数据记录（ CDR )数据采集功能， MBMS GW 收到会话开始响应消息后， 发送开始计费请求消息（ACR[Start] )给计费相 关的网元；
步骤 207, 预留无线资源和建立业务隧道， 发送数据。
如图 3所示， 为现有的 eMBMS会话结束流程， 包括如下步骤： 步骤 301 , BM-SC发送 MBMS会话结束请求消息给 MBMS GW; 消息 中携带会话标识和业务标识， 下行节点列表等信息； MBMS GW回复会话 结束响应消息给 BM-SC, 并释放自己保存的关于本业务的信息；
步骤 302, MBMS GW转发 MBMS会话结束请求消息给此前收到会话 开始消息的 MME, MME返回会话结束响应消息， 并释放自己保存的关于 本业务的信息；
如果 MBMS GW激活 CDR数据采集功能， MBMS GW收到会话结束 响应消息后，发送结束计费请求消息（ ACR[Stop] )给计费数据功能（ Charging Data Function , 筒称为 CDF );
步骤 303 , MME将该 MBMS会话结束请求消息转发给 E-UTRAN, E-UTRAN返回会话结束响应消息；
步骤 304, 无线资源释放。
多媒体广播组播业务的发放是有一定的区域的范围限制的， 通过业务 区域（ Service Area, 筒称 SA ) 的概念来表示。 每个 SA由一系列的业务区 域标识 ( SA ID )来表示，每个 SA ID则定义了一系列的无线小区 ( cell ID ), 因此具体的一个 S A的位置范围实质上对应到无线小区。一个多媒体广播组 播业务可以有一个或多个 SA来定义范围。
因为 SA的限定， 多媒体广播组播业务的从业务源到无线接入设备 (如 基站）的下行通道也是基本确定的。 因此， 对于一个 SA而言， 各个下行节 点的地址也是确定的。 需要说明的是， 考虑到无线接入设备数量巨大， 作 为信令把如此多的下行节点地址都发送下来， 对于信令来说， 是不堪重负 的。 因此， 最后一级的下行节点地址， 不是无线接入设备， 而是保留到了 无线接入设备的上一级。 上一级采用群发的方式， 将会话信令发送到相连 的所有无线接入设备， 如果该接入设备不属于此 SA, 则返回出错消息， 如 果属于此 SA, 则返回成功建立通道的消息。
SA的区域范围一般是在无线接入设备中配置的， 即该无线设备的哪些 小区属于哪个 SA,无线接入设备通过配置来完成。 BM-SC不需要知道一个 业务具体要播放在哪个小区， 只需要知道对应的 SA或 SA列表（SA list ) 即可， 因此 BM-SC需要针对每个业务， 配置其对应的 SA。 同样， 也要配 置所有的下行节点地址列表。
在 E-UTRAN引入以后，无线接入技术多了一种类型。不同的无线接入 技术类型， 意味着不同的无线传输质量， 从而也带来不同业务传输能力和 用户感受。 相对于 UTRAN 及更早的无线接入技术网络 GERAN ( GRPS\EDGE Radio Access Network )而言， E-UTRAN有更高的带宽和数 据传输稳定性， 适应更高的移动速度； 在建设初期， 可用于热点地区以緩 解网络拥塞之用。 这样， 不同的无线接入技术可能对应不同的多媒体广播 组播业务， 或者同一种业务， 实现不同的业务效果。 由此带来的问题是， 无线接入技术能否作为一种计费区分的选项？
以往 GPRS的 MBMS计费分为内容计费和承载计费。在承载计费一侧， 目前的计费向量主要是各业务的时间和流量， 计费单元主要在 BM-SC, 即 业务源。 服务通用分组无线业务支持结点（ Serving GPRS Support Node, 筒 称为 SGSN )和网关 GPRS支持结点 （Gateway GPRS Support Node, 筒称 为 GGSN )也完成一部分计费向量的收集。 基于网络协议（IP )组播协议的 eMBMS , 分为广播和增强型广播两种 模式， 没有针对用户的组播模式。 数据通道的建立 （即承载的建立）采用 IP组播协议。 eMBMS引入逻辑实体 MBMS GW, 且它可以独立存在或者 部署在 MB-SC或和服务网关 （ Serving Gateway, 筒称为 SGW ) /分组数据 网关（ Packet Data Network Gateway, 筒称为 PGW )联合部署。 承载计费主 要在移动核心网网元如 MBMS GW上完成， MBMS GW在收到相关的计费 触发事件（如 MBMS会话开始响应消息， 或时间隔段消息）时， 向计费网 关相关实体， 如： CDF发送包含业务类型、 业务标识、 业务区域、 时间、 流量等信息的计费请求消息。
相应于 eMBMS 网络架构的变化， 计费方面在内容一侧的变化基本不 大， 可是对应承载一侧的计费伴随着网络架构的变化有较大变动。 现有技 术存在的问题是： 当前的 MBMS业务可以发送给 UTR AN和 E-UTR AN等 不同的无线接入技术类型 （Radio access Technique Type, RAT Type ), 不同 无线接入技术类型可以对 MBMS业务提供不同的接入能力，因此使 MBMS 业务可以因无线接入技术类型的不同而有不同的效果， 甚至有些 MBMS业 务只能在更高接入能力的无线接入技术类型下接入， 这样就对业务的应用 以及计费 （包括对用户， 以及对业务提供商计费）产生了针对无线接入技 术类型的区分的需求。 但是目前的 MBMS计费和应用方案中并没有提出针 对无线接入技术类型进行区分的方法。 此外， 无线接入技术及其与相关业 务区域和下行节点相对应的关系， 也没有在相关技术规范中描述。
E-UTRAN的引入也让小区有了变化。 E-UTRAN的小区与 UTRAN的 小区在编号上有所不同。这让业务区域 SA有了 UTRAN和 E-UTRAN的属 性。 即 SA所包含的小区列表属于 UTRAN还是 E-UTRAN还是两者都有， 可以确定 SA的无线接入技术的属性。 目前在 SA的配置方面， 并没有关于 其无线接入属性的配置。 发明内容
本发明要解决的技术问题就是提出一种多媒体广播组播业务中获取接 入信息、 计费的方法和***， 能够获取接入信息， 作为计费的依据。
为了解决上述技术问题， 本发明提供一种多媒体广播组播业务 MBMS 中获取接入信息的方法， 包括：
eMBMS 会话过程中， 广播组播业务中心 BM-SC 设置一个或多个 MBMS会话信令中携带接入信息，并将所述 MBMS会话信令发送给其业务 区域的 MBMS GW;
所述接入信息至少包括无线接入技术类型信息。
进一步地， 上述方法还可具有以下特点：
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 域信息。
进一步地， 上述方法还可具有以下特点：
所述接入信息还包括所述业务区域对应的下行节点信息。
进一步地， 上述方法还可具有以下特点：
BM-SC设置 MBMS 会话开始请求消息中携带接入信息， 并将所述 MBMS会话开始请求消息发送给其业务区域的 MBMS GW;
若 MBMS GW激活计费数据记录 CDR数据采集功能， 则 MBMS GW 设置开始计费请求消息中携带所述接入信息， 并将所述开始计费请求消息 发送给计费数据功能 CDF。
进一步地， 上述方法还可具有以下特点：
BM-SC设置 MBMS 会话结束请求消息中携带接入信息， 并将所述 MBMS会话结束请求消息发送给其业务区域的 MBMS GW;
若 MBMS GW激活 CDR数据采集功能， 则 MBMS GW设置结束计费 请求消息中携带所述接入信息， 并将所述结束计费请求消息发送给 CDF。 为了解决上述技术问题， 本发明提供一种多媒体广播组播业务中计费 的方法， 包括：
eMBMS会话开始后， BM-SC设置计费请求消息中携带接入信息， 并 将所述计费请求消息发送给 CDF;
CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息， 所述计 费记录信息中包含所述接入信息；
所述接入信息至少包括无线接入技术类型信息。
进一步地， 上述方法还可具有以下特点：
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 i或信息。
进一步地， 上述方法还可具有以下特点：
所述接入信息还包括所述业务区域对应的下行节点信息。
进一步地， 上述方法还可具有以下特点：
若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话开始后， MBMS GW设置开始计费请求消息中携带所述接入信息， 并将所述开始计 费请求消息发送给 CDF; 其中包含所述接入信息。
进一步地， 上述方法还可具有以下特点：
eMBMS会话结束时， BM-SC设置结束计费请求消息中携带接入信息， 并将所述结束计费请求消息发送给 CDF;
CDF结束记录针对所述 BM-SC的本次 MBMS会话的计费记录信息， 生成针对所述 BM-SC的本次 MBMS会话的话单，其中包含所述接入信息。
进一步地， 上述方法还可具有以下特点：
若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话结束时， MBMS GW设置结束计费请求消息中携带所述接入信息， 并将所述结束计 费请求消息发送给 CDF;
CDF结束记录针对所述 MBMS GW的本次 MBMS会话的计费记录信 息， 生成针对所述 MBMS GW的本次 MBMS会话的话单， 其中包含所述 接入信息。
为了解决上述技术问题， 本发明提供一种多媒体广播组播业务 MBMS 中获取接入信息的***，包括 BM-SC和该 BM-SC业务区域的 MBMS GW, 所述 BM-SC用于在 eMBMS会话过程中设置一个或多个 MBMS会话 信令中携带接入信息， 并将所述 MBMS会话信令发送给所述 MBMS GW; 所述接入信息至少包括无线接入技术类型信息。
进一步地， 上述***还可具有以下特点：
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 域信息；
或者， 所述接入信息还包括所述无线接入技术类型信息对应的 MBMS 业务区域信息以及所述业务区域对应的下行节点信息。
为了解决上述技术问题， 本发明提供一种多媒体广播组播业务中计费 的***， 包括 BM-SC和 CDF,
所述 BM-SC用于在 eMBMS会话开始后设置计费请求消息中携带接入 信息， 并将所述计费请求消息发送给 CDF;
所述 CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息， 所 述计费记录信息中包含所述接入信息；
所述接入信息至少包括无线接入技术类型信息。
进一步地， 上述***还可具有以下特点：
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 域信息； 或者， 所述接入信息还包括所述无线接入技术类型信息对应的 MBMS 业务区域信息以及所述业务区域对应的下行节点信息。
进一步地， 上述***还可具有以下特点：
所述***还包括所述 BM-SC业务区域的 MBMS GW,
所述 MBMS GW用于当其 CDR数据采集功能被激活时， 在 eMBMS 会话开始后 MBMS GW设置开始计费请求消息中携带所述接入信息， 并将 所述开始计费请求消息发送给 CDF; 录信息， 其中包含所述接入信息。
进一步地， 上述***还可具有以下特点：
所述 BM-SC还用于在 eMBMS会话结束时设置结束计费请求消息中携 带接入信息， 并将所述结束计费请求消息发送给 CDF;
所述 CDF还用于根据所述结束计费请求消息， 结束记录针对所述 BM-SC的本次 MBMS会话的计费记录信息， 生成针对所述 BM-SC的本次 MBMS会话的话单， 其中包含所述接入信息。
进一步地， 上述***还可具有以下特点：
所述 MBMS GW还用于当其 CDR数据采集功能被激活时，在 eMBMS 会话结束时设置结束计费请求消息中携带所述接入信息， 并将所述结束计 费请求消息发送给 CDF;
所述 CDF还用于根据所述结束计费请求消息， 生成针对所述 MBMS
GW的本次 MBMS会话的话单， 其中包含所述接入信息。
通过本发明， 能够获取接入信息， 所述接入信息至少包括无线接入技 术类型 （如： UTRAN和 E-UTRAN等情况）， 作为计费的依据。 这样可以 为通信运营商提供区分无线接入技术类型的计费方式， 对应不同无线接入 技术类型下的 MBMS业务区域（ MBMS Service Area )采用不同的费率，从 而进一步精细化计费。 附图说明
图 1是多媒体广播组播业务模式的网络架构示意图；
图 2是现有技术的 eMBMS会话开始过程流程图；
图 3是现有技术的 eMBMS会话结束过程流程图；
图 4是本发明实施例的 eMBMS会话开始过程增加无线接入技术类型 信息的流程图；
图 5是本发明实施例的 eMBMS会话结束过程增加无线接入技术类型 信息的流程图；
图 6是本发明实施例的 eMBMS会话开始过程增加无线接入技术类型 和对应业务区域的流程图。 具体实施方式
本发明中， 在多媒体广播组播业务会话信令及 BM-SC向 CDF发送的 计费消息中增加接入信息， 所述接入信息至少包括无线接入技术类型， 以 此作为计费的依据， 可以为通信运营商提供区分无线接入技术类型的计费 方式， 对应不同无线接入技术类型下的 MBMS业务区域采用不同的费率， 可进一步精细化计费。
本发明提供一种多媒体广播组播业务 MBMS中获取接入信息的方法， 包括： eMBMS 会话过程中， 广播组播业务中心 BM-SC设置一个或多个 MBMS会话信令中携带接入信息，并将所述 MBMS会话信令发送给其业务 区域的 MBMS GW; 所述接入信息至少包括无线接入技术类型信息。
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 域信息。
所述接入信息还包括所述业务区域对应的下行节点信息。 其中， BM-SC设置 MBMS会话开始请求消息中携带接入信息，并将所 述 MBMS会话开始请求消息发送给其业务区域的 MBMS GW; 若 MBMS GW激活计费数据记录 CDR数据采集功能，则 MBMS GW设置开始计费请 求消息中携带所述接入信息， 并将所述开始计费请求消息发送给计费数据 功能 CDF。
BM-SC设置 MBMS 会话结束请求消息中携带接入信息， 并将所述 MBMS会话结束请求消息发送给其业务区域的 MBMS GW;
若 MBMS GW激活 CDR数据采集功能， 则 MBMS GW设置结束计费 请求消息中携带所述接入信息， 并将所述结束计费请求消息发送给 CDF。
具体来说， 如果一个多媒体广播组播业务覆盖了多种无线接入技术的 设备， 则需要在多媒体广播组播业务会话信令中携带所有无线接入技术类 型。
会话信令中携带的无线接入技术类型， 可以跟随多个与其相对应的业 务区域； 每个业务区域也可以有多个下行节点相对应。
通过给 SA配置无线接入技术类型属性， 从而使会话信令中选择 SA的 同时， 也就选择了该业务的无线接入技术类型。
本发明还提供了一种多媒体广播组播业务中计费的方法， 包括： eMBMS会话开始后， BM-SC设置计费请求消息中携带接入信息， 并 将所述计费请求消息发送给 CDF;
CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息， 所述计 费记录信息中包含所述接入信息；
所述接入信息至少包括无线接入技术类型信息。
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区 域信息； 所述接入信息还可进一步包括所述业务区域对应的下行节点信息。
若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话开始后， MBMS GW设置开始计费请求消息中携带所述接入信息， 并将所述开始计 费请求消息发送给 CDF; 所述 CDF针对所述 MBMS GW产生本次 MBMS 会话的计费记录信息， 其中包含所述接入信息。
eMBMS会话结束时， BM-SC设置结束计费请求消息中携带接入信息， 并将所述结束计费请求消息发送给 CDF; CDF结束记录针对所述 BM-SC 的本次 MBMS会话的计费记录信息， 生成针对所述 BM-SC的本次 MBMS 会话的话单， 其中包含所述接入信息。
若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话结束时， MBMS GW设置结束计费请求消息中携带所述接入信息， 并将所述结束计 费请求消息发送给 CDF; CDF结束记录针对所述 MBMS GW的本次 MBMS 会话的计费记录信息， 生成针对所述 MBMS GW的本次 MBMS会话的话 单， 其中包含所述接入信息。
对计费而言，本发明提出 BM-SC发送计费消息给 CDF,其中携带接入 信息， 以及， CDF针对所述 BM-SC产生的计费记录信息 （即： BM-SC的 CDR ) 中也包含所述接入信息。
如果 MBMS GW的 CDR数据采集功能被激活，发送计费消息给 CDF, 其中也携带接入信息， 以及， CDF针对所述 MBMS GW产生的计费记录信 息中也包含所述接入信息。
所述接入信息至少包括无线接入技术类型信息， 可以是： 仅无线接入 技术类型信息， 或者， 无线接入技术类型信息和其对应的 MBMS业务区域 信息， 或者， 无线接入技术类型信息和其对应的 MBMS业务区域信息以及 所述业务区域对应的下行节点信息。
本发明中提出的无线接入技术类型信息遵循 3GPP标准组织定义的类 型和具体值。 但也可以不局限于此， 在其他无线移动网络的应用中， 使用 其他的类型和对应值。 下面结合附图及具体实施例对本发明建立及结束会话流程、 计费流程 进行详细说明。
实施例一： 在 eMBMS会话开始过程增加无线接入技术类型
按照背景技术所言， 会话开始信令发送之前， 对该业务的业务属性参 数、 地址参数等信息要完成相关的配置。 相对于现有技术， 本实施例在 BM-SC的配置中只为某业务增加无线技术类型属性， 从而在相关信令中单 纯的增加该业务所设计的无线接入技术类型， 对其他没有改动； 或者在业 务区域中的配置属性中增加该业务区域的无线接入技术类型的属性， 使针 对某个业务在选择其业务区域时， 自动完成对无线接入技术类型的增添。 同样， 可以增加业务区域的下行节点地址列表属性， 即业务区域通过配置 所对应的下行节点列表， 自动完成信令中对应的下行节点列表的属性添加。 本实施例不限制一个业务区域只能属于一个无线技术类型， 即可以同时有 多个无线接入技术类型属性。
选择之后的会话信令流程图如图 4所示。 本发明实施例涉及 2种无线 接入技术类型： UTRAN和 E-UTRAN , 对应的核心网络的网元包括 SGSN 和 MME, 以及 MBMS数据网关 MBMS GW。
步骤 401 , BM-SC发送 MBMS会话开始请求消息给各个 MBMS GW; 所述 MBMS会话开始请求消息携带 QoS, 无线接入技术类型 UTRAN 和 E-UTRAN, MBMS 业务区域（ MBMS service Area ) 列表， MBMS会话 标识 （MBMS Session identifier ) , 预计会话持续时间 （estimated session duration )、 目的网络 2G/3G标识（ MBMS xG indicator )等信息；
步骤 402, MBMS GW保存消息中的信息， 并回复会话开始响应消息 给 BM-SC;
步骤 402a, 当收到所述 MBMS GW回复的 MBMS会话开始响应消息 后， BM-SC发送计费请求消息给 CDF; BM-SC从任何一个 MBMS GW收到会话开始响应消息后，发送开始计 费请求消息 （ ACR[Start] )给 CDF;
所述计费请求消息中携带无线接入技术类型信息；
CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息 CDR,所 述计费记录信息中包含无线接入技术类型信息。 具体而言： ACR[Start]消息 触发 CDF 打开本次 MBMS 会话对应的针对 BM-SC 的话单 ( C-BMSC-CDR ),开始针对所述 BM-SC记录本次 MBMS会话的计费信息； CDR 中会包含很多参数信息， 其中包含无线接入技术类型信息； CDF 向 BM-SC返回计费响应消息；
步骤 403 , MBMS GW将 MBMS会话开始请求消息分别发送给 MME 和 SGSN;
需要说明的是， 本步骤中的会话开始请求消息， 可以按接收到的消息 原封不动的转发给 MME和 SGSN; 也可以去除无线接入技术类型， 按现有 技术转发给 MME和 SGSN; 或者携带 E-UTRAN的类型发送给 MME, 携 带 UTR AN的类型发送给 SGSN, 其他参数不变。 此三种场景可以作为三种 实施例来分别实现， 因为不作为本发明中要解决的问题的目的， 所以不再 分开描述。
步骤 404, MME保存消息中的信息， 并将会话开始请求消息发送给 E-UTRAN; 如果 403步骤携带无线接入技术类型参数， 此消息可以去除此 参数， 也可以保留。 SGSN保存消息中的信息， 并将会话开始请求消息发送 给 UTRAN, 对无线接入技术类型的处理同 MME;
步骤 405 , E-UTRAN/ UTRAN判断自己是否有属于该业务区域的小区， 返回会话开始请求的响应消息；
步骤 406 , 当 MME/SGSN从 E-UTRAN/ UTRAN侧收到所有到会话开 始请求的响应消息后， 将会话开始响应消息发送给 MBMS GW; 步骤 406a, 如果 MBMS GW激活 CDR数据采集功能， MBMS GW收 到会话开始响应消息后， 发送开始计费请求消息（ACR[Start] )给计费网关 的相应逻辑功能实体， 如 CDF, 消息中携带无线接入技术类型信息；
CDF针对所述 MBMS GW产生本次 MBMS会话的计费记录信息 CDR , 所述计费记录信息中包含无线接入技术类型信息。 具体来说： CDF打开针 对所述 MBMS GW的本次会话的话单 （MBMS-GW-CDR ), 返回计费响应 消息给 MBMS GW;
所述 MBMS-GW-CDR中包含无线接入技术类型 （ RAT Type )信息等； 步骤 407, 预留无线资源和建立业务隧道， 发送数据。
其中， 所述 402a与步骤 403可以并行执行。
在 eMBMS会话过程中， 所述 CDF根据会话情况更新 C-BMSC-CDR 和 MBMS-GW-CDR中的记录的信息。
本发明中提出的无线接入技术类型信息 （RAT Type )遵循 3GPP标准 组织定义的类型和具体值。 但也可以不局限于此， 在其他无线移动网络的 应用中， 使用其他的类型和对应值。 此描述下述实施例均有效。
实施例二： eMBMS会话结束过程增加无线接入技术类型
如图 5所示， 业务结束时， BM-SC发起会话结束信令流程。
步骤 501 , BM-SC发送 MBMS会话结束请求消息给 MBMS GW; 消息 中携带会话标识和业务标识， 无线接入技术类型， 业务区域， 下行节点列 表等信息； MBMS GW回复会话结束响应消息给 BM-SC, 并释放自己保存 的关于本会话的信息；
步骤 501a, 当收到所述 MBMS GW回复的 MBMS会话结束请求响应 消息后， BM-SC发送结束计费请求消息给 CDF;
其中，所述 BM-SC发送结束计费请求消息中携带无线接入技术类型信 息； BM-SC从任何一个 MBMS GW收到会话结束请求响应消息后，发送结 束计费请求消息 （ACR[Stop] )给 CDF;
CDF结束记录针对所述 BM-SC的本次 MBMS会话的计费记录信息， 生成最终的针对所述 BM-SC的本次 MBMS会话的话单。 具体来说： CDF 关闭已经打开的针对所述 BM-SC的本次会话的话单（C-BMSC-CDR ) (即 生成最终的针对所述 BM-SC的本次 MBMS会话的话单 C-BMSC-CDR ), 返回计费响应消息给 BM-SC; 其中， 所述话单中包含无线接入技术类型信 息；
步骤 502, MBMS GW转发 MBMS会话结束请求消息给此前收到会话 开始消息的 MME/SGSN , MME/SGSN分别返回响应消息， MBMS GW收 到后释放自己保存的关于本业务的信息；
步骤 502a, 如果 MBMS GW激活 CDR数据采集功能， MBMS GW收 到会话结束响应消息后， 发送结束计费请求消息 （ACR[Stop] )给 CDF; 所述结束计费请求消息包含无线接入技术类型 （ RAT Type );
CDF 关闭已经打开的针对所述 MBMS GW 的本次会话的话单 ( MBMS-GW-CDR ), 其中包含无线接入技术类型 （RAT Type ) 并返回计 费响应消息给 MBMS GW。
步骤 503 , MME/SGSN 分别将该信息转发给 E-UTRAN/UTRAN , E-UTRAN/UTRAN返回会话结束响应消息， MME/SGSN收到后释放自己保 存的本会话信息；
步骤 504, 无线资源释放。
其中， 步骤 501a可以与步骤 502并行执行， 步骤 502a可以与步骤 503 并行执行，
需要说明的是， 关于无线接入技术类型的处理， 在会话结束信息中可 以不携带， 即保留原有技术。 MBMS GW在向 CDF发送结束计费请求时， 可以从保存的信息中获取类型值。
实施例三： 在 eMBMS会话开始过程增加无线接入技术类型和对应业 务区域和对应的下行节点列表。
本实施例在业务区域中增加该业务区域的无线接入技术类型的属性， 以及增加该业务区域所对应的下行节点列表的属性。 这样在针对某个多媒 体多播广播业务选择业务区域时， 自动的完成了对其无线接入技术和下行 节点列表的选取。 本实施例不允许出现一个业务区域具有多个无线接入技 术类型的情况， 即只能属于一种类型。
本发明实施例针对某个 MBMS 业务， 其应用范围涉及 UTRAN 和 E-UTRAN两种无线接入技术，有 SA1和 SA101 , SA102三个业务区， SA101 和 SA102属于 E-UTRAN无线技术覆盖范围， SA101具有 MBMS GWl和 MMEl等下行节点， SA102具有 MBMS GWl和 MME2等下行节点； SA1 属于 UTRAN无线技术覆盖范围， 具有 MBMS GWl和 SGSN1 , SGSN2等 下行节点。 这样 BM-SC发出的会话开始请求中包含业务区域包含 SA1 , SA101 , 意味着包含 UTRAN和 E-UTRAN两种无线接入方式， 以及包括下 行节点列表 MBMS GWl ,和 MBMS GWl的下行节点列表： SGSN1 , SGSN2, MM1 , MM2。 会话流程示意图如图 6所示。
步骤 601 , BM-SC发送 MBMS会话开始请求消息给各个 MBMS GW; 所述 MBMS会话开始请求消息携带的会话类参数包括： QoS, MBMS 会话标识 ( MBMS Session identifier ) , 预计会话持续时间（ estimated session duration )、 目的网络 2G/3G标识（ MBMS xG indicator )等，
以及地址类参数：
无线接入技术类型 UTRAN , UTRAN下的业务区域 S Al , 下行节点地 址 MBMS GWl , MBMS GWl的下行节点地址列表（ SGSN1 , SGSN2 ), 无线接入技术类型 E-UTRAN , E-UTRAN下的业务区域 SA101 , SA102, 下行节点地址 MBMS GW1 , MBMS GW1的下行节点地址列表（MME1 , MME2 )等信息；
需要说明的是， 所述 MBMS会话开始请求消息中的参数按照无线技术 类型进行了分组， 用于在后续信令发送时， 可以减少参数信息的发送。
步骤 602 , MBMS GW保存消息中的参数信息， 并回复会话开始响应 消息给 BM-SC;
步骤 602a, 当收到所述 MBMS GW回复的 MBMS会话开始响应消息 后， BM-SC发送计费请求消息给 CDF;
BM-SC从任何一个 MBMS GW收到会话开始响应消息后，发送开始计 费请求消息 （ ACR[Start] )给 CDF;
所述计费请求消息中携带无线接入技术类型信息和对应的业务区域信 息以及下行结点地址列表信息等， 即：
无线接入技术类型 UTRAN , UTRAN下的业务区域 S A1 , 下行节点地 址 MBMS GW1 , MBMS GW1的下行节点地址列表（ SGSN1 , SGSN2 ), 无线接入技术类型 E-UTR AN , E-UTRAN下的业务区域 SA101 , SA102, 下行节点地址 MBMS GW1 , MBMS GW1的下行节点地址列表（MME1 , MME2 )等信息；
CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息 CDR,所 述计费记录信息中包含上述信息。 具体来说： ACR[Start]消息触发 CDF打 开本次 MBMS会话对应的针对 BM-SC的话单（ C-BMSC-CDR ), 开始针对 所述 BM-SC记录本次 MBMS会话的计费信息； CDR中包含上述信息； CDF 向 BM-SC返回计费响应消息；
步骤 603 , MBMS GW将 MBMS会话开始请求消息（包含了会话属性 参数 )分别发送给下行地址列表中的 MME和 SGSN;
需要说明的是， 本步骤中的会话开始请求消息， 可以按照无线接入技 术的类别进行分发，如 UTRAN类的下行节点，只需要包含 UTRAN类下的 SA列表。 对于目的网络 2G/3G标识， 发往 E-UTRAN的信令可以不携带。
步骤 604, MME保存消息中的会话参数信息， 并将会话开始请求消息 发送给 E-UTRAN; 如果 603步骤携带无线接入技术类型参数， 此消息可以 去除此参数， 也可以保留。 SGSN保存消息中的信息， 并将会话开始请求消 息发送给 UTRAN, 对无线接入技术类型的处理同 MME;
步骤 605 , E-UTRAN/UTRAN判断自己是否有属于该业务区域的小区， 返回会话开始响应消息；
步骤 606, 当 MME/SGSN从 E-UTRAN/UTRAN侧收到所有到会话开 始响应消息后， 将会话开始响应消息发送给 MBMS GW;
步骤 606a, 如果 MBMS GW激活 CDR数据采集功能， MBMS GW收 到会话开始响应消息后， 发送开始计费请求消息（ACR[Start] )给计费网关 的相应逻辑实体， 如： CDF, 消息中携带无线接入技术类型和对应的业务 区域以及下行结点地址列表信息；
CDF针对所述 MBMS GW产生本次 MBMS会话的计费记录信息 CDR , 所述计费记录信息中包含无线接入技术类型和对应的业务区域以及下行结 点地址列表信息。 具体来说： CDF打开针对所述 MBMS GW的本次会话的 话单（ MBMS-GW-CDR ), 返回计费响应消息给 MBMS GW;
所述 MBMS-GW-CDR 中包含无线接入技术类型和对应的业务区域以 及下行结点地址列表信息等；
步骤 607, 预留无线资源和建立下行通道， 传输数据。
其中， 所述 602a与步骤 603可以并行执行。
在 eMBMS会话过程中， 所述 CDF根据会话情况更新 C-BMSC-CDR 和 MBMS-GW-CDR中的记录的信息。
本发明实施例的多媒体广播组播业务中获取接入信息的***， 包括 BM-SC和该 BM-SC业务区域的 MBMS GW,所述 BM-SC用于在 eMBMS 会话过程中设置一个或多个 MBMS会话信令中携带接入信息， 并将所述 MBMS会话信令发送给所述 MBMS GW; 所述接入信息至少包括无线接 入技术类型信息。 所述接入信息还包括所述无线接入技术类型信息对应 的 MBMS业务区域信息； 所述接入信息还可进一步包括所述业务区域对 应的下行节点信息。
本发明实施例的多媒体广播组播业务中计费的***， 包括 BM-SC, CDF和该 BM-SC业务区域的 MBMS GW, 所述 BM-SC用于在 eMBMS 会话开始后设置计费请求消息中携带接入信息， 并将所述计费请求消息 发送给 CDF;所述 CDF针对所述 BM-SC产生本次 MBMS会话的计费记 录信息， 所述计费记录信息中包含所述接入信息； 所述接入信息至少包 括无线接入技术类型信息。 所述接入信息还包括所述无线接入技术类型 信息对应的 MBMS业务区域信息； 所述接入信息还可进一步包括所述业 务区域对应的下行节点信息。
所述 MBMS GW用于当其 CDR数据采集功能被激活时， 在 eMBMS 会话开始后 MBMS GW设置开始计费请求消息中携带所述接入信息， 并将 所述开始计费请求消息发送给 CDF; 录信息， 其中包含所述接入信息。
所述 BM-SC还用于在 eMBMS会话结束时设置结束计费请求消息中携 带接入信息， 并将所述结束计费请求消息发送给 CDF;
所述 CDF还用于根据所述结束计费请求消息， 结束记录针对所述 BM-SC的本次 MBMS会话的计费记录信息， 生成针对所述 BM-SC的本次 MBMS会话的话单， 其中包含所述接入信息。
所述 MBMS GW还用于当其 CDR数据采集功能被激活时，在 eMBMS 会话结束时设置结束计费请求消息中携带所述接入信息， 并将所述结束计 费请求消息发送给 CDF; 所述 CDF还用于根据所述结束计费请求消息， 生 成针对所述 MBMS GW的本次 MBMS会话的话单， 其中包含所述接入信 息。
当针对不同的无线接入技术类型信息（ RAT Type )和 MBMS业务区域 设定不同的费率时， 可以帮助通信运营商对内容提供商 （Content provider ) 进行更精细化更灵活的承载侧计费。
综上， 通过本发明的上述实施例， 提供了 eMBMS 的广播模式下对内 容提供商的 eMBMS承载离线计费方法， 使得通信运营商可以在 eMBMS 业务中， 对内容提供商进行承载侧的收费， 并且细化到可以允许通信运营 商根据不同的无线接入技术设定不同的费率对应不同的 MBMS业务区域列 表进行计费， 从而帮助通信运营商和内容提供商对开展 eMBMS 业务进行 费用清分。
当然， 本发明还可有其它多种实施例， 在不背离本发明精神及其实质 变形， 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范 围。

Claims

权利要求书
1、 一种多媒体广播组播业务 MBMS 中获取接入信息的方法， 其特 征在于， 包括：
eMBMS 会话过程中， 广播组播业务中心 BM-SC设置一个或多个 MBMS会话信令中携带接入信息，并将所述 MBMS会话信令发送给其业 务区域的 MBMS GW;
所述接入信息至少包括无线接入技术类型信息。
2、 如权利要求 1所述的方法， 其特征在于，
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务 区域信息。
3、 如权利要求 2所述的方法， 其特征在于，
所述接入信息还包括所述业务区域对应的下行节点信息。
4、 如权利要求 1至 3中任一项所述的方法， 其特征在于，
BM-SC设置 MBMS会话开始请求消息中携带接入信息， 并将所述 MBMS会话开始请求消息发送给其业务区域的 MBMS GW;
若 MBMS GW激活计费数据记录 CDR数据采集功能，则 MBMS GW 设置开始计费请求消息中携带所述接入信息， 并将所述开始计费请求消 息发送给计费数据功能 CDF。
5、 如权利要求 1至 3中任一项所述的方法， 其特征在于，
BM-SC设置 MBMS会话结束请求消息中携带接入信息， 并将所述 MBMS会话结束请求消息发送给其业务区域的 MBMS GW;
若 MBMS GW激活 CDR数据采集功能， 则 MBMS GW设置结束计 费请求消息中携带所述接入信息， 并将所述结束计费请求消息发送给 CDF。
6、 一种多媒体广播组播业务中计费的方法， 其特征在于， 包括： eMBMS会话开始后， BM-SC设置计费请求消息中携带接入信息， 并将所述计费请求消息发送给 CDF;
CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息， 所述 计费记录信息中包含所述接入信息；
所述接入信息至少包括无线接入技术类型信息。
7、 如权利要求 6所述的方法， 其特征在于，
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务 区域信息。
8、 如权利要求 7所述的方法， 其特征在于，
所述接入信息还包括所述业务区域对应的下行节点信息。
9、 如权利要求 6至 8中任一项所述的方法， 其特征在于， 若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话开始后， MBMS GW设置开始计费请求消息中携带所述接入信息， 并将所述开始 计费请求消息发送给 CDF; 息， 其中包含所述接入信息。
10、 如权利要求 6至 8中任一项所述的方法， 其特征在于， eMBMS会话结束时， BM-SC设置结束计费请求消息中携带接入信 息， 并将所述结束计费请求消息发送给 CDF; 生成针对所述 BM-SC的本次 MBMS会话的话单， 其中包含所述接入信 息。
11、 如权利要求 10所述的方法， 其特征在于，
若 MBMS GW激活 CDR数据采集功能， 在 eMBMS会话结束时， MBMS GW设置结束计费请求消息中携带所述接入信息， 并将所述结束 计费请求消息发送给 CDF;
CDF结束记录针对所述 MBMS GW的本次 MBMS会话的计费记录 信息， 生成针对所述 MBMS GW的本次 MBMS会话的话单， 其中包含 所述接入信息。
12、 一种多媒体广播组播业务 MBMS中获取接入信息的***， 包括 BM-SC和该 BM-SC业务区域的 MBMS GW, 其特征在于，
所述 BM-SC用于在 eMBMS会话过程中设置一个或多个 MBMS会 话信令中携带接入信息， 并将所述 MBMS会话信令发送给所述 MBMS GW;
所述接入信息至少包括无线接入技术类型信息。
13、 如权利要求 12所述的***， 其特征在于，
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务 区域信息；
或者， 所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务区域信息以及所述业务区域对应的下行节点信息。
14、 一种多媒体广播组播业务中计费的***， 包括 BM-SC和 CDF, 其特征在于，
所述 BM-SC用于在 eMBMS会话开始后设置计费请求消息中携带接 入信息， 并将所述计费请求消息发送给 CDF;
所述 CDF针对所述 BM-SC产生本次 MBMS会话的计费记录信息， 所述计费记录信息中包含所述接入信息；
所述接入信息至少包括无线接入技术类型信息。
15、 如权利要求 14所述的***， 其特征在于，
所述接入信息还包括所述无线接入技术类型信息对应的 MBMS业务 区域信息； 或者， 所述接入信息还包括所述无线接入技术类型信息对应的
MBMS业务区域信息以及所述业务区域对应的下行节点信息。
16、 如权利要求 14或 15所述的***， 其特征在于， 所述***还包 括所述 BM-SC业务区域的 MBMS GW,
所述 MBMS GW用于当其 CDR数据采集功能被激活时，在 eMBMS 会话开始后 MBMS GW设置开始计费请求消息中携带所述接入信息， 并 将所述开始计费请求消息发送给 CDF; 记录信息， 其中包含所述接入信息。
17、 如权利要求 14或 15所述的***， 其特征在于，
所述 BM-SC还用于在 eMBMS会话结束时设置结束计费请求消息中 携带接入信息， 并将所述结束计费请求消息发送给 CDF;
所述 CDF还用于根据所述结束计费请求消息， 结束记录针对所述 BM-SC的本次 MBMS会话的计费记录信息， 生成针对所述 BM-SC的本 次 MBMS会话的话单， 其中包含所述接入信息。
18、 如权利要求 17所述的***， 其特征在于，
所述 MBMS GW 还用于当其 CDR 数据采集功能被激活时， 在 eMBMS会话结束时设置结束计费请求消息中携带所述接入信息，并将所 述结束计费请求消息发送给 CDF;
所述 CDF还用于根据所述结束计费请求消息 ,生成针对所述 MBMS GW的本次 MBMS会话的话单， 其中包含所述接入信息。
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