WO2016112496A1 - Procédé et appareil de traitement de service de groupe - Google Patents

Procédé et appareil de traitement de service de groupe Download PDF

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Publication number
WO2016112496A1
WO2016112496A1 PCT/CN2015/070610 CN2015070610W WO2016112496A1 WO 2016112496 A1 WO2016112496 A1 WO 2016112496A1 CN 2015070610 W CN2015070610 W CN 2015070610W WO 2016112496 A1 WO2016112496 A1 WO 2016112496A1
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WIPO (PCT)
Prior art keywords
mbms
gcs
request message
area
location information
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PCT/CN2015/070610
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English (en)
Chinese (zh)
Inventor
李志明
曹龙雨
朱奋勤
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华为技术有限公司
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Priority to CN201580067432.7A priority Critical patent/CN107005816A/zh
Priority to PCT/CN2015/070610 priority patent/WO2016112496A1/fr
Publication of WO2016112496A1 publication Critical patent/WO2016112496A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a cluster service.
  • the trunking communication system is a special communication system with scheduling capability, which provides one-way communication capability, and allows the user equipment UE (User Equipment) to communicate with one or more other users.
  • UE User Equipment
  • the trunk communication in LTE can be transmitted by means of unicast and multicast.
  • the multicast transmission mode of the trunk communication uses the existing Multimedia Broadcast/Multicast Service (MBMS) technology for information transmission.
  • MBMS Multimedia Broadcast/Multicast Service
  • the MBMS coverage area is planned to be a plurality of MBMS service areas.
  • Each MBMS service area is deployed with an MBMS network element, and an MBMS bearer is established between the MBMS network elements.
  • the cluster communication application service server GCS AS (Group The Communication Service Application Server) can transmit data to the UE through the MBMS bearer, where the E-UTRAN Cell Global Identifier (EGI) is an E-UTRAN Cell Global Identifier (ECG), which is an EMU (Evolved UMTS Terrestrial Radio Access Network)
  • E-UTRAN Cell Global Identifier E-UTRAN Cell Global Identifier
  • EMU Evolved UMTS Terrestrial Radio Access Network
  • the MBMS service area is statically configured, that is, in which MBMS service areas different MBMS services are played, they are pre-configured.
  • the service areas of different MBMS services may be different or the same. Therefore, if the UE wants to receive a specific MBMS service, the area where the UE is located is planned in advance in the MBMS service area of the MBMS service.
  • the UE since the UE has mobility, there is a UE moving to an unplanned specific MBMS industry. In the area of the service, the UE is unable to receive a specific MBMS service. Because the area where the UE is located is not planned to play a specific MBMS service, there is no MBMS bearer in the area where the UE is located, and the GCS AS cannot initiate the corresponding MBMS bearer activation.
  • the existing MBMS technology has the disadvantage that the GCS AS cannot dynamically establish an MBMS bearer according to the actual situation of the UE.
  • the embodiment of the invention provides a method and a device for processing a cluster service, which are used to dynamically establish an MBMS bearer according to the actual situation of the UE.
  • a first aspect of the embodiments of the present invention provides a method for processing a cluster service, including:
  • the cluster communication service application server GCS AS receives the capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes an evolution of the area where the UE is located.
  • the GCS AS Determining, by the GCS AS, the MBMS bearer service for activating the multimedia broadcast/multicast service according to the capability indication and the location information;
  • the GCS AS sends a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the GCS AS determines, according to the capability indication and the location information, that the MBMS bearer service is activated, including:
  • the GCS AS Determining, by the GCS AS, that the UE supports the multicast transmission according to the capability indication and the location information, and that the number of UEs having the same ECGI as the area where the UE is located reaches a preset threshold, determining to activate the MBMS bearer service. .
  • the method further includes:
  • the GCS AS determines that the security key is generated by using the GCS AS to generate a security key
  • the method further includes:
  • the request message sent by the GCS AS to the BM-SC includes a security key generated by the GCS AS.
  • the GCS AS determines that the security key is generated by generating the security key by the BM-SC
  • the method further includes:
  • the GCS AS receives a response message sent by the BM-SC, where the response message includes a security key generated by the BM-SC.
  • the request message includes an ECGI of a region where the UE is located, so that the BM-SC And determining, according to the ECGI of the area where the UE is located, an MBMS service area identifier MBMS SAI corresponding to the area where the UE is located, and selecting an MBMS network element according to the MBMS SAI, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the GCS AS sends a request message to the BM-SC, including:
  • the GCS AS sends a request message to the BM-SC that includes the MBMS SAI corresponding to the area where the UE is located.
  • the GCS AS sends a request message to the BM-SC, specifically:
  • the GCS AS The capability indication and location information of the UE, specifically:
  • the GCS AS interacts with the policy and charging function entity PCRF through the Rx interface to obtain location information of the UE.
  • a second aspect of the embodiments of the present invention provides a method for processing a cluster service, including:
  • the broadcast-multicast service center BM-SC receives the request message sent by the trunking service application server GCS AS, and the request message is determined to be activated by the GCS AS according to the capability indication and location information of the UE sent by the user equipment UE. a message sent by the MBMS bearer service to the BM-SC, the request message is used to request the BM-SC to establish an MBMS bearer for the UE;
  • the BM-SC allocates an MBMS system resource for MBMS service transmission according to the request message
  • the BM-SC establishes an MBMS bearer for the UE by using the allocated MBMS system resource.
  • the request message includes an evolved radio access network global cell identifier (ECGI) of a region where the user equipment UE is located; and the BM-SC uses the The allocated MBMS system resources establish an MBMS bearer for the UE, including:
  • ECGI evolved radio access network global cell identifier
  • the BM-SC Determining, by the BM-SC, the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located, according to the ECGI included in the request message;
  • the BM-SC selects an MBMS network element according to the MBMS SAI, and establishes an MBMS bearer for the UE between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message The MBMS SAI corresponding to the area where the UE is located is included; the BM-SC establishes an MBMS bearer for the UE by using the allocated MBMS system resource, including:
  • the BM-SC selects an MBMS network element according to the MBMS SAI, and establishes an MBMS bearer for the UE between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message includes a tracking area identifier TAI of an area where the UE is located, and an evolved radio access network global cell identifier (ECGI) of the area where the UE is located;
  • TAI tracking area identifier
  • ECGI evolved radio access network global cell identifier
  • the BM-SC establishes an MBMS bearer for the UE by using the allocated MBMS system resource, including:
  • the BM-SC obtains configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and the MBMS network element;
  • the BM-SC selects an MBMS network element according to the TAI and the configuration information, and establishes an MBMS bearer for the UE between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message includes security a key
  • the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the BM-SC receiving After the request message sent by the GCS AS, the method further includes:
  • the BM-SC sends a response message to the GCS AS, where the response message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • a third aspect of the embodiments of the present invention provides a method for processing a cluster service, including:
  • the user equipment UE reports the capability indication and the location information of the UE to the trunking service application server GCS AS, so that the GCS AS determines to activate the MBMS bearer service of the multimedia broadcast/multicast service according to the capability indication and the location information;
  • the capability indication characterizes the The UE supports multicast transmission
  • the location information includes an evolved radio access network global cell identifier ECGI of the area where the UE is located.
  • the UE that reports the capability indication and location information of the UE to the GCS AS includes:
  • the UE reports the capability indication and location information of the UE to the GCS AS by using a session initiation protocol SIP process.
  • the location information further includes a tracking area identifier TAI of an area where the UE is located.
  • a fourth aspect of the embodiments of the present invention provides a cluster communication service application server GCS AS, including:
  • a first receiving unit configured to receive a capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes an evolution of an area where the UE is located Radio access network global cell identity ECGI;
  • a processing unit configured to determine, according to the capability indication and the location information, an MBMS bearer service for activating a multimedia broadcast/multicast service
  • a sending unit configured to send a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the processing unit is specifically configured to:
  • the processing unit is further configured to:
  • Determining a method for generating a security key, where the security key is used to encrypt data transmitted between the GCS AS and the UE, and the method for generating the security key includes generating a security key by the GCS AS Or generate a security key from the BM-SC.
  • the GCS AS further includes:
  • a generating unit configured to generate a security key when the GCS AS determines that the security key is generated by generating a security key by the GCS AS;
  • the sending unit is specifically configured to: send, to the BM-SC, the request message that includes a security key generated by the GCS AS.
  • the GCS AS further includes:
  • a second receiving unit configured to receive a response message sent by the BM-SC, where the response message includes a security key generated by the BM-SC.
  • the request message includes an ECGI of a region where the UE is located, so that the BM-SC And determining, according to the ECGI of the area where the UE is located, an MBMS service area identifier MBMS SAI corresponding to the area where the UE is located, and selecting an MBMS network element according to the MBMS SAI, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the sending unit is specifically configured to:
  • the sending unit is specifically configured to:
  • a request message including a tracking area identifier TAI of an area where the UE is located and an ECGI of an area where the UE is located, so that the BM-SC selects an MBMS according to the TAI.
  • a network element where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the location information of the UE is obtained by interacting with the policy and charging function entity PCRF through the Rx interface.
  • a fifth aspect of the embodiments of the present invention provides a broadcast-multicast service center BM-SC, including:
  • a receiving unit configured to receive a request message sent by the trunking service application server GCS AS, where the request message is determined by the GCS AS according to the capability indication and location information of the UE sent by the user equipment UE, to determine to activate the multimedia broadcast/multiple a message sent by the MBMS bearer service to the BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE;
  • An allocating unit configured to allocate an MBMS system resource for MBMS service transmission according to the request message
  • an establishing unit configured to establish an MBMS bearer for the UE by using the allocated MBMS system resource.
  • the request message includes an evolved radio access network global cell identifier (ECGI) of a region where the user equipment UE is located; and the BM-SC further includes:
  • ECGI evolved radio access network global cell identifier
  • mapping unit configured to determine, according to the ECGI included in the request message, an MBMS service area identifier MBMS SAI corresponding to an area where the UE is located;
  • the establishing unit is configured to: select an MBMS network element according to the MBMS SAI, and use the allocated MBMS system The system resources establish an MBMS bearer for the UE between the selected MBMS network elements.
  • the request message includes an MBMS SAI corresponding to the area where the UE is located; the establishing unit is specifically configured to:
  • the request message includes a tracking area identifier TAI of an area where the UE is located, and an evolved radio access network global cell identifier (ECGI) of the area where the UE is located;
  • TAI tracking area identifier
  • ECGI evolved radio access network global cell identifier
  • an obtaining unit configured to obtain configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and the MBMS network element;
  • the establishing unit is configured to: select an MBMS network element according to the TAI and the configuration information, and establish the MBMS bearer between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message includes security secret a key
  • the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the BM-SC further includes :
  • a sending unit configured to send, after the BM-SC receives the request message sent by the GCS AS, a response message to the GCS AS, where the response message includes a security key, where the security key is used for the GCS
  • the data transmitted between the AS and the UE is encrypted.
  • a sixth aspect of the embodiments of the present invention provides a user equipment UE, including:
  • a processing unit configured to report the capability indication and location information of the UE to the trunking service application server GCS AS, so that the GCS AS determines to activate the MBMS bearer of the multimedia broadcast/multicast service according to the capability indication and the location information a service; wherein the capability indication characterizes the The UE supports multicast transmission, and the location information includes an evolved radio access network global cell identifier ECGI of the area where the UE is located.
  • the processing unit is specifically configured to:
  • the capability indication and location information of the UE are reported to the GCS AS by using a session initiation protocol SIP process.
  • the location information further includes a tracking area identifier TAI of the area where the UE is located.
  • the cluster communication service application server GCS AS receives the capability indication and location information of the UE itself sent by the user equipment UE, and then determines to activate the MBMS bearer of the multimedia broadcast/multicast service according to the capability indication and the location information.
  • the service finally sends a request message to the broadcast-multicast service center BM-SC, which is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the GCS AS can dynamically activate the MBMS bearer according to the capability indication and the location information of the user equipment UE, and then activate the MBMS bearer service in the specific location area where the UE is located, and ensure that the MBMS service is provided for the UE.
  • 1 is a possible communication system architecture applicable to a method for processing a cluster service in an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for processing a cluster service on a GCS AS side according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for processing a cluster service on a BM-SC side according to an embodiment of the present invention
  • FIG. 4 is a cross-connection between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • FIG. 5 is another interaction diagram between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • FIG. 6 is still another interaction diagram between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • FIG. 7 is an interaction diagram between network elements in a process of generating a security key according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for processing a cluster service on a UE side according to an embodiment of the present disclosure
  • FIG. 9 is a functional block diagram of a GCS AS according to an embodiment of the present invention.
  • FIG. 10 is a hardware block diagram of a GCS AS according to an embodiment of the present invention.
  • FIG. 11 is a functional block diagram of a BM-SC according to an embodiment of the present invention.
  • FIG. 12 is a hardware block diagram of a BM-SC according to an embodiment of the present invention.
  • FIG. 13 is a functional block diagram of a UE according to an embodiment of the present invention.
  • FIG. 14 is a hardware module diagram of a UE according to an embodiment of the present invention.
  • the embodiment of the invention provides a method and a device for processing a cluster service, which are used to dynamically establish an MBMS bearer according to the actual situation of the UE.
  • the cluster communication service application server GCS AS receives the capability indication and location information of the UE itself sent by the user equipment UE, and then determines to activate the MBMS bearer of the multimedia broadcast/multicast service according to the capability indication and the location information.
  • the service finally sends a request message to the broadcast-multicast service center BM-SC, which is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the GCS AS can dynamically activate the MBMS bearer according to the capability indication and the location information of the user equipment UE, and then activate the MBMS bearer service in the specific location area where the UE is located, and ensure that the MBMS service is provided for the UE.
  • FIG. 1 is a possible communication system architecture applicable to a method for processing a cluster service in an embodiment of the present invention.
  • the communication system architecture includes: User equipment (UE) for receiving an MBMS (Multimedia Broadcast/Multicast Service) service for activating a multimedia broadcast/multicast service, the UE having a capability indication, the capability indication characterizing whether the UE supports multicast transmission, and the UE further having location information,
  • the location information includes an evolved radio access network global cell identifier (ECGI) in the area where the UE is located, and the location information may also include a tracking area identifier (TAI) of the area where the UE is located; the eNB is mainly used for establishing, releasing, and releasing user data of the radio bearer.
  • ECGI evolved radio access network global cell identifier
  • TAI tracking area identifier
  • Multi-cell/multicast Coordination Entity is mainly used for scheduling management of radio resources in the industry, that is, selecting appropriate resources (including parameters such as frequency and time) for multimedia broadcasts.
  • Broadcast single frequency network MBSFN Multimedia Broadcast multicast service Single Frequency Network
  • MME Mobility Management Entity is mainly involved in MBMS session management
  • BM-SC Broadcast-Multicast Service Centre
  • BM-SC belongs to the service layer network.
  • the element is the entry of the content provider, providing aggregation and transmission of services, authorization of users (key generation and transmission of keys), establishment and initiation of MBMS service bearers, initiation of session control, etc., and also enabling BM-SC and The synchronization between the eNBs; the MBMS GW (MBMS Getway), which is a node between the BM-SC and the eNB, is the access gateway of the network, and is responsible for processing user data related messages and session related signaling.
  • GCS AS Group Communication Service Application Server
  • the function of the activation of the MBMS is activated.
  • the policy and charge rule function (PCRF) is mainly responsible for the generation of the charging policy.
  • the UE is connected to the eNB through the Uu interface, the UE is connected to the GCS AS through the CG1 interface, the eNB is connected to the MCE through the M2 interface, the eNB is connected to the MBMS GW through the M1 interface, and the eNB and the MME are connected through the S1-MME interface.
  • the MCE and the MME are connected through the M3 interface; the MME and the MBMS GW are connected through the Sm interface; the MBMS GW is connected through the SGmb interface and the SGimb interface; the BM-SC is connected to the GCS AS through the MB2-C and the MB2-U; and the GCS AS is connected to the PCRF through the Rx interface. connection.
  • FIG. 2 is a flowchart of a method for processing a cluster service on the GCS AS side according to an embodiment of the present invention, where the method includes:
  • Step 101 The trunking service application server GCS AS receives the capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes where the UE is located.
  • Step 102 The GCS AS determines to activate the MBMS bearer service of the multimedia broadcast/multicast service according to the capability indication and the location information.
  • Step 103 The GCS AS sends a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the capability indication of the UE indicates that the UE supports the multicast transmission
  • the location information of the UE includes the evolved radio access network global cell identifier ECGI in the area where the UE is located, and the location information of the UE may also include the tracking area identifier of the area where the UE is located.
  • TAI The ECGI identifies the location area where the UE is located, that is, the broadcast area of the MBMS service after the MBMS session is established in the BM-SC.
  • the ECGI is also used to guide the MCE to select an eNB according to the ECGI included in the session start request, and then send a session start request to the selected eNB. For details, refer to the related description in FIG. 6 below.
  • the GCS AS in step 101 receives the capability indication and location information of the user equipment UE, including:
  • the GCS AS interacts with the policy and charging function entity PCRF through the Rx interface to obtain location information of the UE.
  • the GCS AS receives the capability indication and location information of the UE in the following four implementation manners:
  • the first implementation manner is as follows: the UE reports the capability indication and the location information of the UE to the GCS AS through the GC1 interface signaling of the application layer, and the GCS receives the capability indication and the location information reported by the UE.
  • the second implementation manner is: when the UE registers the group, the session initiation protocol (Session Initiation Protocol) process reports the capability indication and the location information of the GCS AS, and the GCS receives the capability indication and the location information reported by the UE.
  • Session Initiation Protocol Session Initiation Protocol
  • the UE may report the capability indication of the UE to the GCS AS only, and report the UE's own capability to the GCS AS. location information.
  • the GCS AS can receive the capability indication and location information of the UE by using the third implementation manner and the fourth implementation manner as follows:
  • the third implementation manner is: the UE reports the capability indication of the UE to the GCS AS through the GC1 interface of the application layer, and the GCS receives the capability indication reported by the UE, and the GCS AS interacts with the PCRF through the Rx interface to obtain the location information of the UE.
  • the fourth implementation manner is: when the UE registers the group, the session initiation protocol (Session Initiation Protocol) process reports the capability indication to the GCS AS, and the GCS receives the capability indication reported by the UE, and the GCS AS interacts with the PCRF through the Rx interface. Location information of the UE.
  • Session Initiation Protocol Session Initiation Protocol
  • the GCS AS may perform step 102 and step 103 after receiving the capability indication and location information of the UE.
  • the step 102 is specifically implemented in the specific implementation process:
  • the GCS AS Determining, by the GCS AS, that the UE supports multicast transmission according to the capability indication and the location information, and that the number of UEs having the same ECGI as the area where the UE is located reaches a preset threshold. Then it is determined that the MBMS bearer service is activated.
  • the GCS AS receives the capability indication and location information of multiple UEs, and then supports the ECGI of the area where the UE transmits the multicast transmission according to any one of the multiple UEs.
  • the UE that supports the multicast transmission is located.
  • the ECGI of the area is referred to as the first ECGI.
  • the preset threshold may be set according to the actual utilization efficiency of the network, for example, the preset threshold may be 8.
  • the GCS AS receives the capability indication and location information of the UEs of UE1, UE2, UE3, and UE4, where the capability indications of UE1, UE2, UE3, and UE4 indicate that UE1, UE2, UE3, and UE4 support multicast transmission.
  • the location information of UE1, UE2, UE3, and UE4 indicates that the ECGIs of UE1, UE2, UE3, and UE4 are 1, 1, 1, and 2, respectively, and the GCS AS supports UEs that support multicast transmission in any of the four UEs, such as UE1.
  • the ECGI of the area is compared with the ECGI of other UEs supporting multicast transmission, that is, the ECGI of UE1 is compared with the ECGIs of UE2, UE3, and UE4, and it is determined whether the number of UEs having the same ECGI as UE1 in UE2, UE3, and UE4 is The preset threshold is reached.
  • the GCS AS determines to activate the MBMS bearer service, and sends a request message to the BM-SC, and the BM-SC establishes an MBMS bearer for the UE1, the UE2, and the UE3 according to the received request message.
  • the GCS AS compares the ECGI of the UE supporting the multicast transmission in any of the four UEs with the ECGI of the UE supporting the multicast transmission, and also the ECGI of the UE4 and the UE2, UE3, and UE1.
  • the ECGI compares and determines whether the number of UEs having the same ECGI as the UE4 in the UE2, the UE3, and the UE1 reaches a preset threshold. Since the ECGI of the UE4 is 2, the ECGIs of the UE2, the UE3, and the UE1 are 1, 1, 1, respectively. There is no UE with the same ECGI of UE4, the number is 0.
  • the GCS AS does not activate MBMS.
  • the bearer service does not send a request message to the BM-SC, and the BM-SC does not establish an MBMS bearer for the UE4 according to the received request message.
  • the content of the request message sent by the GCS AS to the BM-SC may be different.
  • the request message may include the ECGI of the area where the UE is located, or the MBMS SAI generated by mapping the ECGI of the area where the UE is located by the GCS AS, or the ECGI of the area where the UE is located and the tracking of the area where the UE is located.
  • Area identification TAI Area identification
  • the GCS AS sends a request message to the BM-SC according to the content included in the request message sent by the GCS AS to the BM-SC, and specifically has the following three implementation manners:
  • the first implementation manner is that the GCS AS sends a request message to the BM-SC that includes an ECGI of a region where the UE is located, where the request message includes an ECGI of a region where the UE is located, so that the BM-SC is configured according to the BM-SC.
  • the ECGI of the area where the UE is located determines the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located, and selects the MBMS network element according to the MBMS SAI, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the second implementation manner is: the GCS AS determines, according to the ECGI of the area where the UE is located, the MBMS SAI corresponding to the area where the UE is located;
  • the GCS AS sends a request message to the BM-SC that includes the MBMS SAI corresponding to the area where the UE is located.
  • the third implementation manner is that the GCS AS sends a request message to the BM-SC that includes the tracking area identifier TAI of the area where the UE is located and the ECGI of the area where the UE is located, so that the BM-SC according to the The TAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the location information includes the ECGI of the area where the UE is located, so the GCS AS can directly send a request message to the BM-SC without requesting any processing.
  • the ECGI of the UE is included.
  • the BM-SC maps the ECGI to the SAI.
  • the BM-SC selects the MBMS network element according to the SAI in the request message, and establishes the MBMS bearer for the UE by using the MBMS network element. How does the specific BM-SC select the MBMS network element according to the SAI, and use the MBMS network element to establish the MBMS bearer for the UE. The prior art will not be described here.
  • the location information includes the ECGI of the area where the UE is located, so the GCS AS may map the ECGI to the SAI, and then send a request message to the BM-SC, where the request message includes
  • the MBMS SAI generated by the GCS AS mapping the ECGI of the UE after receiving the request message, the BM-SC selects the MBMS network element according to the SAI in the request message, and establishes the MBMS bearer for the UE by using the MBMS network element.
  • the specific BM-SC selects the MBMS network element according to the SAI, and the MBMS network element is used to establish the MBMS bearer for the UE.
  • the prior art is not described here.
  • the location information includes the tracking area identifier TAI of the area where the UE is located, and the GCS AS can directly process the BM without any processing.
  • the SC sends a request message, and the request message includes the ECGI and the TAI of the UE.
  • the BM-SC selects the MBMS network element according to the TAI, selects the eNB according to the ECGI, and establishes the MBMS bearer for the UE by using the MBMS network element.
  • the specific BM-SC selects the MBMS network element according to the TAI, selects the eNB according to the ECGI, and establishes the MBMS bearer for the UE by using the MBMS network element.
  • TAI time metric index
  • eNB e.g., a cell center
  • ECGI e.g., a cell center
  • MBMS bearer for the UE by using the MBMS network element.
  • the processing method of the cluster service provided by the embodiment of the present invention from the BM-SC side. It will not be described in detail here.
  • the GCS AS can also perform the following steps:
  • the method further includes:
  • the request message sent by the GCS AS to the BM-SC includes a security key generated by the GCS AS.
  • the method further includes:
  • the GCS AS receives a response message sent by the BM-SC, where the response message includes a security key generated by the BM-SC.
  • the time at which the GCS AS determines the manner in which the security key is generated is not limited.
  • the GCS AS may also send the request message to the BM-SC after the GCS AS sends the request message to the BM-SC.
  • the GCS AS and the UE can perform data transmission through the established MBMS bearer.
  • the security key pair needs to be used in the GCS AS and the UE.
  • the data transmitted is encrypted.
  • the specific content of the security key may be: a service key identifier (MSK ID), an MBMS service key (MSK), and a key validation. The way the specific security key is generated is determined by the GCS AS.
  • the GCS AS determines whether a security key is generated by the GCS AS or a security key by the BM-SC based on the security requirements for the data transmitted between the GCS AS and the UE. For example, when the security requirement is not high, the security key can be generated by the GCS AS; when the security requirement is high, the security key can be generated by the BM-SC, because the GCS AS is a third-party application server for the user, the GCS AS is Untrustworthy, and BM-SC is a functional network element of the carrier network that provides trusted security protection.
  • the GCS AS may generate a security key before transmitting the request message to the BM-SC, and then send a request message containing the security key generated by the GCS AS to the BM-SC. After receiving the request message, the BM-SC can obtain the security key by parsing the request message.
  • the GCS AS When the GCS AS determines to generate a security key by the BM-SC, the GCS AS directly sends a request message to the BM-SC. After receiving the request message, the BM-SC allocates the MBMS system resource according to the received request message, and selects the MBMS network element. The MBMS bearer is established between the MBMS network elements. Since there is no security key in the request message, the BM-SC generates a security key, and then the BM-SC sends a response message to the GCS AS after the MBMS bearer is successfully established. Contains the security key generated by the BM-SC. After receiving the response message, the GCS AS can obtain the security key by parsing the response message.
  • FIG. 3 is a flowchart of a method for processing a cluster service on a BM-SC side according to an embodiment of the present invention, where the method includes: :
  • Step 201 The broadcast-multicast service center BM-SC receives the request message sent by the cluster communication service application server GCS AS, where the request message is the capability indication and location information of the UE sent by the GCS AS according to the user equipment UE. Determining, after the activation of the MBMS bearer service of the multimedia broadcast/multicast service, a message sent to the BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE;
  • Step 202 The BM-SC allocates an MBMS system resource for MBMS service transmission according to the request message.
  • Step 203 The BM-SC establishes an MBMS bearer for the UE by using the allocated MBMS system resource.
  • the GCS AS receives the capability indication and location information of the UE, and then determines to activate the MBMS bearer service according to the capability indication and location information of the UE, and sends a request message to the BM-SC.
  • the request message is used to request the BM-SC to establish an MBMS bearer for the UE according to the request message. Therefore, the BM-SC can receive the request message sent by the GCS AS.
  • the BM-SC may perform step 202 to allocate MBMS system resources for the MBMS service transmission, where the MBMS system resources mainly include: a frequency band, a time slot, a channel, and the like for the MBMS service transmission.
  • step 203 may be performed.
  • the BM-SC according to the content included in the request message sent by the GCS AS to the BM-SC, the BM-SC receives a request message containing different content, and the BM-SC utilizes the request message according to the request message.
  • the allocated MBMS system resource establishes an MBMS bearer for the UE, and specifically has the following three implementation manners:
  • the first implementation manner is: the request message includes an evolved radio access network global cell identifier ECGI of a region where the user equipment UE is located; and the BM-SC establishes an MBMS bearer for the UE by using the allocated MBMS system resource. , including:
  • the BM-SC Determining, by the BM-SC, the MBMS service area identifier MBMS SAI corresponding to the area where the UE is located, according to the ECGI included in the request message;
  • the BM-SC selects an MBMS network element according to the MBMS SAI, and establishes an MBMS bearer for the UE between the selected MBMS network elements by using the allocated MBMS system resource.
  • FIG. 4 is an interaction diagram between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • the UE reports the capability indication and location information of the UE to the GCS AS (step 1a), or the UE reports its capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the location information of the UE.
  • the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information of the UE (step 2); the GCS AS maps the ECGI to the SAI (step 3); the GCS AS determines The number of UEs having the same ECGI as the area where the UE is located reaches a preset threshold, and sends an MBMS bearer request message to the BM-SC, where the request message includes the SAI generated by the GCS AS (step 4); BM-SC Receiving the MBMS system resource according to the SAI when the request message including the SAI generated by the GCS AS is received, and selecting the MBMS network element according to the SAI (step 5); the BM-SC starts the MBMS bearer establishment according to the existing MBMS process (step 6); The BM-SC sends a response message to the GCS AS (step 7); the GCS AS notifies the UE that the MBMS bearer service is activated, and send
  • the UE obtains User Service Description (USD) information, and the UE can obtain USD from the GCS AS through the SIP process of the prior art, or can be obtained by unicast or multicast.
  • the BM-SC acquires the USD (step 9); the GCS AS transmits the user data to the UE by the MBMS multicast mode (step 10).
  • the second implementation manner is: the request message includes an MBMS SAI corresponding to the area where the UE is located; and the BM-SC uses the allocated MBMS system resource to establish an MBMS bearer for the UE, including:
  • the BM-SC selects an MBMS network element according to the MBMS SAI, and utilizes the allocated
  • the MBMS system resource establishes the MBMS bearer between the selected MBMS network elements.
  • FIG. 5 is another interaction diagram between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • the UE reports the capability indication and location information of the UE to the GCS AS (step 1a), or the UE reports its capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the location information of the UE. 1c); after receiving the capability indication and the location information of the UE, the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information of the UE (step 2); the GCS AS determines that the UE has the same ECGI as the area where the UE is located.
  • a request message for activating an MBMS bearer is sent to the BM-SC, where the request message includes an ECGI of the UE (step 3); the BM-SC receives a request message including an ECGI of the UE.
  • the MBMS system resources are allocated, and the MBMS network element is selected according to the SAI (step 4); the BM-SC starts the MBMS bearer establishment according to the existing MBMS procedure (step 5); the BM-SC to the GCS AS Sending a response message (step 6); the GCS AS notifies the UE that the MBMS bearer service is activated, and sends relevant application layer parameter information to the UE, such as a security key, a USD URL, etc.
  • the UE acquires the USD information, the UE Can be used from GCS AS through the existing SIP process Take USD, can also obtain unicast or multicast mode USD (step 8) from the BM-SC; GCS AS through MBMS multicast mode to transmit user data to the UE (step 9).
  • the foregoing BM-SC allocates the MBMS system resource according to the request message, and initiates the first implementation manner and the second implementation manner of the MBMS session establishment, and is applicable to the scenario in which the UE reports the ECGI to the GCS AS.
  • the embodiment of the present invention further provides a third implementation manner, where the UE reports the ECGI and the TAI to the GCS AS.
  • the request message includes a tracking area identifier TAI of an area where the UE is located and an evolved radio access network global cell identifier (ECGI) of the area where the UE is located; and the BM-SC uses the allocated MBMS system resource.
  • Establishing an MBMS bearer for the UE including:
  • the BM-SC obtains configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and the MBMS network element;
  • the BM-SC selects an MBMS network element according to the TAI and the configuration information, and establishes the MBMS between the selected MBMS network elements by using the allocated MBMS system resource. Hosted.
  • the BM-SC needs to use the configuration information to select an MBMS network element, and initiates an MBMS session establishment, where the configuration information represents a correspondence between the TAI and the MBMS network element, and the configuration information can be configured.
  • the DNS server it can also be configured on the BM-SC. Since the request message received by the BM-SC includes the TAI of the area where the UE is located, after receiving the request message, the BM-SC can obtain the TAI by parsing the request message, and then from the BM-SC itself or from the DNS server. Extract configuration information related to TAI.
  • the correspondence between the TAI and the MBMS network element configured on the DNS server or the BM-SC is: TAI 1 corresponds to MBMS GW 1, MME 1, MCE 1; TAI 2 corresponds to MBMS GW 2, MME 2, MCE 2; TAI 3 corresponds to MBMS GW 3, MME 3, MCE 3.
  • the request message received by the BM-SC includes the TAI of the area where the UE is located is TAI 1, and the BM-SC extracts the MBMS network element corresponding to the TAI 1 from the BM-SC itself or from the DNS server: MBMS GW 1, MME1, MCE 1 .
  • FIG. 6 is still another interaction diagram between network elements in the process of establishing an MBMS bearer according to an embodiment of the present invention.
  • the UE reports the capability indication and location information of the UE to the GCS AS (step 1a), or the UE reports its capability indication to the GCS AS (step 1b), and the GCS AS interacts with the PCRF through the Rx interface to obtain the location information of the UE. 1c); after receiving the capability indication and the location information of the UE, the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information of the UE (step 2); the GCS AS determines that the UE has the same ECGI as the area where the UE is located.
  • a request message for activating an MBMS bearer is sent to the BM-SC, where the request message includes the ECGI and the TAI of the UE (step 3); the BM-SC receives the ECGI including the UE.
  • the MBMS system resource is allocated, and the MBMS network element is selected according to the TAI, and the eNB is selected according to the ECGI (step 4); the BM-SC selects the MBMS network element (eg, MBMS GW, MME, according to the TAI and configuration information included in the request message).
  • the MCE saves the information of these MBMS network elements (for example, IP address, etc.) in the parameter table, and the BM-SC selects the MBMS GW according to the parameter table, and then sends a session start request to the selected MBMS GW, in the session start request.
  • these MBMS network elements for example, IP address, etc.
  • MBMS GW Returning the session start response message to the BM-SC (step 6); the MBMS GW selects the MME according to the parameter table, and then sends a session start request to the selected MME, where the session start request includes the parameter table and the ECGI included in the request message (step 7)
  • the MME selects the MCE according to the parameter table, and then sends a session start request to the selected MCE, where the session start request includes the parameter table and the ECGI included in the request message (step 8); the MCE according to the ECGI included in the session start request Selecting an eNB, and then transmitting a session start request to the selected eNB (step 9); the RAN side allocates radio resources (step 10); the eNB returns a session start response message to the MBMS GW through the MCE and the MME (step 11); BM-SC direction
  • the GCS AS sends a response message (step 12); the GCS AS not
  • the UE obtains the USD information.
  • the UE can obtain the USD from the GCS AS through the SIP process of the prior art, or obtain the USD from the BM-SC by using the unicast or multicast mode (step 14); the GCS AS transmits the user data to the UE by using the MBMS multicast mode (step 15) .
  • the GCS AS can also determine the manner in which the security key is generated, that is, whether the security key is generated by the GCS AS or the security key is generated by the BM-SC.
  • the key is used to encrypt the data transmitted between the GCS AS and the UE.
  • the specific content of the security key may be: MBMS Service Key Identifier (MBMS Service Key Identifier), MBMS Service Key (MSMS) And key validation, etc.
  • the request message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the security key is generated by the GCS AS, and the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the method further includes:
  • the BM-SC sends a response message to the GCS AS, where the response message includes a security key, and the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the GCS AS when the GCS AS decides to generate a security key by the GCS AS, the GCS AS can Before transmitting the request message to the BM-SC, a security key is generated, and then a request message containing the security key generated by the GCS AS is transmitted to the BM-SC. After receiving the request message, the BM-SC can obtain the security key by parsing the request message.
  • the GCS AS When the GCS AS determines to generate a security key by the BM-SC, the GCS AS directly sends a request message to the BM-SC, and the request message does not include the security key. After receiving the request message, the BM-SC parses the request message. If the security key is not obtained, the security key is actively generated, and then when the response message for activating the MBMS bearer is sent to the GCS AS, a response message including the security key generated by the BM-SC is sent.
  • FIG. 7 is an interaction diagram between network elements in a process of generating a security key according to an embodiment of the present invention.
  • the GCS AS first determines how the security key is generated (step 1); when the generation mode is that the security key is generated by the GCS AS, the GCS AS generates a security key (step 2a); the GCS AS to the BM- The SC sends a request message containing the security key generated by the GCS AS (step 3a); when the generation mode is to generate the security key by the BM-SC, the GCS AS sends a request message to the BM-SC (step 2b); BM-SC After receiving the request message, the request message is parsed, and the security key is not obtained, the BM-SC actively generates a security key, and then sends a response message to the GCS AS to activate the MBMS bearer, where the response message includes the BM-SC generated by the BM-SC.
  • Security key step 3b).
  • FIG. 8 is a flowchart of a method for processing a cluster service on the UE side according to an embodiment of the present invention, where the method includes:
  • Step 301 The user equipment UE reports the capability indication and location information of the UE to the trunking service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information.
  • a bearer service wherein the capability indication characterizes that the UE supports multicast transmission, and the location information includes an evolved radio access network global cell identity ECGI of a region in which the UE is located.
  • the GCS AS receives the capability indication and location information of the UE, and the capability indication characterizes that the UE supports multicast transmission, and the location information includes the evolved radio of the area where the UE is located.
  • the access network global cell identifier ECGI wherein the capability indication information and the location information received by the GCS AS are reported by the UE, and the specific reporting method has the following Two methods:
  • the first method the UE reports the capability indication and the location information of the UE to the GCS AS by using the GC1 interface signaling of the application layer.
  • the second method the UE reports the capability indication and location information of the UE to the GCS AS by using a session initiation protocol SIP process.
  • the UE is connected to the GCS AS through the GC1 interface of the application layer, so the UE can report the capability indication of the UE and the location information to the GCS AS through the GC1 interface signaling.
  • the UE registers the group, the capability indication and location information of the UE itself are reported to the GCS AS through the session initiation cooperative SIP process.
  • the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information of the UE. As described above, after receiving the capability indication and the location information of the UE, the GCS AS determines whether the UE supports the multicast transmission, and has the same number of UEs as the ECGI of the area where the UE is located, if the judgment result is If yes, it is determined to activate the MBMS bearer service of the multimedia broadcast/multicast service, and send a request message to the BM-SC, and the BM-SC allocates the MBMS system resource according to the received request message, and establishes an MBMS bearer.
  • the GCS AS determines to activate the MBMS bearer service according to the capability indication and the location information of the UE.
  • the GCS AS determines whether the UE supports the multicast transmission, and has the same number of UEs as the ECGI of the area where the UE is located, if the judgment result is If yes, it is determined to activate the MBMS bear
  • the location information may include only the evolved radio access network global cell identifier ECGI of the area where the UE is located, and the location information may include the area where the UE is located, in addition to the evolved radio access network global cell identifier ECGI of the area where the UE is located.
  • the tracking area identifies the TAI.
  • the UE may report the ECGI to the GCS AS, and the BM-SC may select the MBMS network element according to the ECGI to establish an MBMS bearer.
  • the UE may report the ECGI to the GCS AS, and the BM-SC may select the MBMS network element according to the ECGI to establish an MBMS bearer.
  • the UE may also report the ECGI and the TAI to the GCS AS.
  • the BM-SC may select an MBMS network element according to the TAI of the area where the UE is located, and select an eNB according to the ECGI to establish an MBMS bearer.
  • the specific implementation process refer to the foregoing description of the processing method of the cluster service on the GCS AS side and the BM-SC side, and details are not described herein again.
  • FIG. 9 is a functional block diagram of a GCS AS according to an embodiment of the present invention.
  • GCS AS Group Communication Service Application Server
  • the GCS AS includes:
  • the first receiving unit 11 is configured to receive the capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes an area where the UE is located.
  • the processing unit 12 is configured to determine, according to the capability indication and the location information, that the MBMS bearer service is activated for the multimedia broadcast/multicast service;
  • the sending unit 13 is configured to send a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • processing unit 12 is specifically configured to:
  • processing unit 12 is further configured to:
  • Determining a method for generating a security key, where the security key is used to encrypt data transmitted between the GCS AS and the UE, and the method for generating the security key includes generating a security key by the GCS AS Or generate a security key from the BM-SC.
  • the GCS AS further includes:
  • a generating unit configured to generate a security key when the GCS AS determines that the security key is generated by generating a security key by the GCS AS;
  • the sending unit 13 is specifically configured to: send the request message that includes the security key generated by the GCS AS to the BM-SC.
  • the GCS AS further includes:
  • a second receiving unit configured to receive a response message sent by the BM-SC, where the response message includes a security key generated by the BM-SC.
  • the request message includes an ECGI of the area where the UE is located, so that the BM-SC determines an MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to an ECGI of the area where the UE is located, and according to the MBMS.
  • the SAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the sending unit 13 is specifically configured to:
  • the sending unit 13 is specifically configured to:
  • a request message including a tracking area identifier TAI of the area where the UE is located and an ECGI of the area where the UE is located, so that the BM-SC selects an MBMS network element according to the TAI, where the MBMS
  • the network element is used to establish an MBMS bearer for the UE.
  • the first receiving unit 11 is specifically configured to:
  • the location information of the UE is obtained by interacting with the policy and charging function entity PCRF through the Rx interface.
  • FIG. 10 is a hardware block diagram of a GCS AS according to an embodiment of the present invention.
  • GCS AS includes:
  • the receiver 111 is configured to receive capability indication and location information of the UE sent by the user equipment UE, where the capability indication indicates that the UE supports multicast transmission, and the location information includes the The evolved radio access network global cell identity ECGI of the area where the UE is located;
  • the processor 112 is configured to determine, according to the capability indication and the location information, that the MBMS bearer service is activated for the multimedia broadcast/multicast service;
  • the sender 114 is configured to send a request message to the broadcast-multicast service center BM-SC, where the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the processor 112 is specifically configured to:
  • processor 112 is further configured to:
  • Determining a method for generating a security key, where the security key is used to encrypt data transmitted between the GCS AS and the UE, and the method for generating the security key includes generating a security key by the GCS AS Or generate a security key from the BM-SC.
  • processor 112 is further configured to:
  • the transmitter 114 is specifically configured to: send, to the BM-SC, the request message that includes a security key generated by the GCS AS.
  • the receiver 111 is further configured to:
  • the request message includes an ECGI of the area where the UE is located, so that the BM-SC determines an MBMS service area identifier MBMS SAI corresponding to the area where the UE is located according to an ECGI of the area where the UE is located, and according to the MBMS.
  • the SAI selects an MBMS network element, where the MBMS network element is used to establish an MBMS bearer for the UE.
  • the transmitter 114 is specifically configured to:
  • the transmitter 114 is specifically configured to:
  • a request message including a tracking area identifier TAI of the area where the UE is located and an ECGI of the area where the UE is located, so that the BM-SC selects an MBMS network element according to the TAI, where the MBMS
  • the network element is used to establish an MBMS bearer for the UE.
  • the receiver 111 is specifically configured to:
  • the location information of the UE is obtained by interacting with the policy and charging function entity PCRF through the Rx interface.
  • bus 110 may include any number of interconnected buses and bridges, and bus 110 will include one or more processors and memory 113 represented by processor 112. The various circuits of the memory are linked together.
  • the bus 100 can also connect various other circuits, such as peripherals, voltage regulators, and power management circuits, as is well known in the art and, therefore, will not be further described herein.
  • Bus interface 115 provides an interface between bus 100 and receiver 111 and transmitter 114.
  • Receiver 111 and transmitter 114 may be the same component, i.e., a transceiver, providing means for communicating with various other devices on a transmission medium.
  • a user interface 116 may also be provided, such as a keypad, display, speaker, microphone, joystick, and the like.
  • the processor 112 is responsible for managing the bus 110 and the usual processing, and the memory 113 can be used to store data used by the processor 112 when performing operations.
  • FIG. 11 is a functional block diagram of a BM-SC according to an embodiment of the present invention. .
  • FIG. 11 For the meaning and specific implementation of the terms related to the BM-SC shown in FIG. 11, reference may be made to the foregoing descriptions of FIGS. 1 to 8 and the related embodiments.
  • the BM-SC includes:
  • the receiving unit 21 is configured to receive a request message sent by the trunking service application server GCS AS, where the request message is determined by the GCS AS to activate the multimedia broadcast according to the capability indication and location information of the UE sent by the user equipment UE.
  • a message sent by the multicast service MBMS to the BM-SC the request message is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the allocating unit 22 is configured to allocate an MBMS system resource for MBMS service transmission according to the request message;
  • the establishing unit 23 is configured to establish an MBMS bearer for the UE by using the allocated MBMS system resource.
  • the request message includes an evolved radio access network global cell identifier (ECGI) of the area where the user equipment UE is located; and the BM-SC further includes:
  • ECGI evolved radio access network global cell identifier
  • mapping unit configured to determine, according to the ECGI included in the request message, an MBMS service area identifier MBMS SAI corresponding to an area where the UE is located;
  • the establishing unit 23 is configured to: select an MBMS network element according to the MBMS SAI, and establish an MBMS bearer for the UE between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message includes an MBMS SAI corresponding to the area where the UE is located; the establishing unit 23 is specifically configured to:
  • the request message includes a tracking area identifier TAI and a UE where the UE is located.
  • an obtaining unit configured to obtain configuration information according to the TAI included in the request message, where the configuration information includes a correspondence between the TAI and the MBMS network element;
  • the establishing unit 23 is configured to: select an MBMS network element according to the TAI and the configuration information, and establish the MBMS bearer between the selected MBMS network elements by using the allocated MBMS system resource.
  • the request message includes a security key
  • the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the BM-SC further includes:
  • a sending unit configured to send, after the BM-SC receives the request message sent by the GCS AS, a response message to the GCS AS, where the response message includes a security key, where the security key is used for the GCS
  • the data transmitted between the AS and the UE is encrypted.
  • FIG. 12 is a hardware block diagram of a BM-SC according to an embodiment of the present invention.
  • the BM-SC includes:
  • the receiver 221 is configured to receive a request message sent by the trunking service application server GCS AS, where the request message is determined by the GCS AS to activate the multimedia broadcast according to the capability indication and location information of the UE sent by the user equipment UE. a message sent by the multicast service MBMS to the BM-SC, the request message is used to request the BM-SC to establish an MBMS bearer for the UE;
  • the processor 222 is configured to allocate an MBMS system resource for the MBMS service transmission according to the request message, and establish an MBMS bearer for the UE by using the allocated MBMS system resource.
  • the request message includes an evolved radio access network global cell identifier (ECGI) of the area where the user equipment UE is located; and the processor 222 is further configured to:
  • ECGI evolved radio access network global cell identifier
  • an MBMS service area identifier MBMS SAI corresponding to an area where the UE is located; selecting an MBMS network element according to the MBMS SAI, and using the allocated MBMS system resource in the selecting An MBMS bearer is established between the outgoing MBMS network elements for the UE.
  • the request message includes an MBMS SAI corresponding to the area where the UE is located; and the processor 222 is specifically configured to:
  • the request message includes a tracking area identifier TAI of the area where the UE is located, and an evolved radio access network global cell identifier (ECGI) of the area where the UE is located.
  • the processor 222 is further configured to:
  • the MBMS system resource establishes the MBMS bearer between the selected MBMS network elements.
  • the request message includes a security key
  • the security key is used to encrypt data transmitted between the GCS AS and the UE.
  • the BM-SC further includes:
  • a transmitter 223, configured to send, after the BM-SC receives the request message sent by the GCS AS, a response message to the GCS AS, where the response message includes a security key, where the security key is used to The data transmitted between the GCS AS and the UE is encrypted.
  • bus 220 can include any number of interconnected buses and bridges, and bus 220 will include one or more processors and memory 224 represented by processor 222. The various circuits of the memory are connected together.
  • the bus 220 can also connect various other circuits, such as peripherals, voltage regulators, and power management circuits, as is well known in the art, and therefore, will not be further described herein.
  • Bus interface 225 provides an interface between bus 220 and receiver 221 and transmitter 223.
  • the receiver 221 and the transmitter 223 may be the same component, ie, a transceiver, provided for use on a transmission medium and various A unit that communicates with other devices.
  • a user interface 226, such as a keypad, display, speaker, microphone, joystick, etc., may also be provided depending on the nature of the user device.
  • Processor 222 is responsible for managing bus 220 and normal processing, while memory 224 can be used to store data used by processor 222 in performing operations.
  • FIG. 13 is a functional block diagram of a UE according to an embodiment of the present invention.
  • FIG. 13 is a functional block diagram of a UE according to an embodiment of the present invention.
  • the UE includes:
  • the processing unit 31 is configured to report the capability indication and location information of the UE to the trunking service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information.
  • a bearer service wherein the capability indication characterizes that the UE supports multicast transmission, and the location information includes an evolved radio access network global cell identity ECGI of a region in which the UE is located.
  • processing unit 31 is specifically configured to:
  • the capability indication and location information of the UE are reported to the GCS AS by using a session initiation protocol SIP process.
  • the location information further includes a tracking area identifier TAI of the area where the UE is located.
  • FIG. 14 is a hardware block diagram of a UE according to an embodiment of the present invention.
  • the UE includes:
  • the processor 311 is configured to report the capability indication and location information of the UE to the trunking service application server GCS AS, so that the GCS AS determines to activate the multimedia broadcast/multicast service MBMS according to the capability indication and the location information.
  • a bearer service wherein the capability indication characterizes that the UE supports multicast transmission, and the location information includes an evolved radio access network global cell identity ECGI of a region in which the UE is located.
  • the processor 311 is specifically configured to:
  • the capability indication and location information of the UE are reported to the GCS AS by using a session initiation protocol SIP process.
  • the location information further includes a tracking area identifier TAI of the area where the UE is located.
  • bus 310 can include any number of interconnected buses and bridges, and bus 310 will include one or more processors and memory 312 represented by processor 311. The various circuits of the memory are connected together.
  • the bus 310 can also connect various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • the processor 311 is responsible for managing the bus 310 and the usual processing, and the memory 312 can be used to store data used by the processor 311 when performing operations.
  • the UE may specifically be a mobile phone, a tablet, and other user-side devices.
  • the cluster communication service application server GCS AS receives the capability indication and location information of the UE itself sent by the user equipment UE, and then determines to activate the MBMS bearer of the multimedia broadcast/multicast service according to the capability indication and the location information.
  • the service finally sends a request message to the broadcast-multicast service center BM-SC, which is used to request the BM-SC to establish an MBMS bearer for the UE.
  • the GCS AS can dynamically activate the MBMS bearer according to the capability indication and the location information of the user equipment UE, and then activate the MBMS bearer service in the specific location area where the UE is located, and ensure that the MBMS service is provided for the UE.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation in the flowchart The steps of a process or a plurality of processes and/or block diagrams of a function specified in a block or blocks.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de traitement de services de groupe. Le procédé comprend les étapes suivantes : un serveur d'application de service de communication de groupe (GCS AS) reçoit en provenance d'un équipement utilisateur (UE) un indicateur de capacité et des informations de localisation de l'UE, l'indicateur de capacité indiquant que l'UE prend en charge une transmission en multidiffusion et les informations de localisation comprenant l' identificateur global de cellule (ECGI) d'accès radio terrestre UMTS évolué (E-URTAN) de la zone où l'UE est situé ; le GCS AS détermine l'activation du service de porteuse de service de multidiffusion/diffusion Multimédia (MBMS) selon l'indicateur de capacité et les informations de localisation ; le GCS AS envoie à un centre de service de diffusion-multidiffusion (BM-SC) un message de requête qui sert à demander au BM-SC d'établir une porteuse MBMS pour l'UE.
PCT/CN2015/070610 2015-01-13 2015-01-13 Procédé et appareil de traitement de service de groupe WO2016112496A1 (fr)

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PCT/CN2015/070610 WO2016112496A1 (fr) 2015-01-13 2015-01-13 Procédé et appareil de traitement de service de groupe

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