[go: up one dir, main page]

WO2008040243A1 - Procédé, dispositif et système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s'interrompant au niveau d'un terminal - Google Patents

Procédé, dispositif et système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s'interrompant au niveau d'un terminal Download PDF

Info

Publication number
WO2008040243A1
WO2008040243A1 PCT/CN2007/070740 CN2007070740W WO2008040243A1 WO 2008040243 A1 WO2008040243 A1 WO 2008040243A1 CN 2007070740 W CN2007070740 W CN 2007070740W WO 2008040243 A1 WO2008040243 A1 WO 2008040243A1
Authority
WO
WIPO (PCT)
Prior art keywords
mbs
terminal
service
exit
gateway
Prior art date
Application number
PCT/CN2007/070740
Other languages
English (en)
Chinese (zh)
Inventor
Wei Zhang
Wenliang Liang
Chengyan Feng
Yuankui Zhao
Chaolin Ren
Musen Li
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CNA2006101270821A external-priority patent/CN101155328A/zh
Priority claimed from CN2007100048477A external-priority patent/CN101150852B/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008040243A1 publication Critical patent/WO2008040243A1/fr

Links

Classifications

    • 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
    • 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

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method, a multicast broadcast device, and a system for a terminal to exit a multicast broadcast service in a global access network.
  • IEEE 802.16 mainly includes three standards of 802.16a, 802.16 RevD and 802.16e.
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiMAX is the industry's wireless metropolitan area network access technology based on the IEEE 802.16 series of standards. Its basic goal is to provide a point-to-multipoint network in the metropolitan area network. In a multi-vendor environment, broadband wireless access means can be effectively interoperable.
  • the 802.16 series of standards specifies the protocol layer of the air interface part of the WiMAX system, including the physical layer (PHY) and the Medium Access Control (MAC) layer.
  • the PHY layer physically performs modulation, demodulation, and codec operations on the signal
  • the MAC layer mainly implements the media access control function of the WiMAX system.
  • FIG. 1 shows the WiMAX end-to-end reference model.
  • the R1 interface is a wireless air interface and is mainly defined by IEEE802.16d/e.
  • the remaining interfaces are all wired interfaces.
  • WiMAX mainly includes a mobile station (Mobile Station, referred to as "MS”) / Subscriber Station ("Snack Station”), an Access Service Network ("ASN”) and a connection service network ( Connectivity Service Network, referred to as "CSN”).
  • MS Mobile Station
  • ASN Access Service Network
  • CSN Connectivity Service Network
  • the ASN is defined as a set of network functions for providing WiMAX user terminals with radio access services.
  • the ASN includes a base station BS and an ASN gateway (ASN GateWay abbreviation "ASN-GW”) network element, and an ASN may be shared by multiple CSNs.
  • ASN-GW ASN GateWay abbreviation "ASN-GW”
  • the main functions of the ASN include the functions of the BS and the functions of the ASN-GW.
  • the functions of the BS are: providing L2 connection of BS and user station SS/MS, radio resource management, measurement and power control, and compression and encryption of air interface data.
  • the functions of ASN-GW include: providing proxy function for SS/MS authentication, authorization and accounting functions; supporting network discovery and selection of Network Service Provider (NSP); providing L3 for SS Relay function of information, such as IP address allocation.
  • the CSN is defined to provide IP connection services for WiMAX user terminals.
  • the CSN mainly provides the following functions: IP address allocation of SS/MS, Internet access, authentication, authorization, and accounting (Authorization Authorization, Account, AAA) proxy or server, user-based authorization. Control, ASN to CSN tunneling, WiMAX subscriber billing and inter-operator billing, tunneling between CSNs, ASN switching, and various WiMAX services (eg location-based services, multimedia) Broadcast and broadcast services, IP multimedia subsystem services).
  • the MS/SS is a (mobile) terminal, and the user uses the terminal to access the WiMAX network.
  • MMS Broadcast & Broadcast Service
  • IP Internet Protocol
  • WiMAX defines the MBS service, which is a point-to-multipoint service that provides a data source to send data to multiple users in a mobile network, realizes network resource sharing, and improves utilization of network resources. Especially the air interface resources.
  • the MBS defined by WiMAX can not only realize plain-text low-rate message-like multicast and broadcast, but also realize multicast and broadcast of high-speed multimedia services, which undoubtedly conforms to the trend of future mobile data development.
  • a service flow identifier (“SFID") is used to identify different one-way service flows, and CIDs are used to identify different connections. All service flows are controlled by media access in the air interface (Medium Access).
  • the connection of the Control abbreviated as "MAC” layer, is transmitted, and the traffic is transmitted on the corresponding connection by mapping between the SFID of the service flow and the CID connected to the MAC layer.
  • the MBS service based on the WiMAX network also identifies the multicast connection through the multicast connection identifier (Multicast CID), and identifies a multicast service through the MBS Contents ID, which is transmitted on a Mulicast CID.
  • a Protocol Data Unit (“PDU”) may contain one or more MBS services.
  • some globally defined service flows may carry broadcast or multicast information to multiple terminals. These service flows include Quality of Service (QoS) parameters. To improve service security, It can be encrypted with a globally defined data encryption key.
  • QoS Quality of Service
  • the MBS service based on WiMAX network supports two access modes: single base station access and multiple base station access.
  • MBS Zone identified by MBS_zone ID
  • MBS GSA Multicast Group Security Association
  • the content of the same MBS service stream is sent, and the terminal that registers the MBS service can receive the MBS service data through multiple base stations in the MBS domain, and the terminal in the idle state does not need to re-establish the connection when moving across the base station in the MBS zone, or Affected receiving MBS services, seamlessly switching MBS services.
  • an MBS connection link can be established by "DSA-REQ” / "DS A-RSP", and the MBS content identifier broadcast by the terminal MBS domain is notified to instruct the terminal to receive MBS service data.
  • the terminal can receive the MBS service data through multiple base stations in the MBS domain, The terminal in the state, when performing cross-base station mobility in the MBS domain, does not need to re-enter the network and re-establish the MBS service connection, and can receive the MBS service without being affected, and realize the MBS. Seamless switching of business.
  • the prior art does not involve related processing that needs to be performed when leaving the MBS service. That is to say, when the terminal does not want to receive the MBS service (for example, when the user does not want to receive the MBS service again, or when the terminal switches to the cell that does not support the MBS service that is subscribed to it) or the MBS service ends, the terminal cannot exit the related MBS service.
  • the present invention provides a method, device, and system for a terminal to exit a multicast broadcast service, so that a terminal in a WiMAX network can normally exit the MBS service.
  • the present invention provides a method for a terminal to exit a multicast broadcast service in a microwave access global interworking network, including the steps of:
  • the MBS server After receiving the request for the terminal to withdraw from the MBS or the condition for terminating the service provided to the terminal, the MBS server instructs the network side key management entity to stop performing the MBS key update for the terminal.
  • the present invention also provides a multicast broadcast system, including at least one MBS server for providing an MBS service, and a bearer network connecting the MBS server and the terminal, the MBS server is further configured to exit the MBS at the receiving terminal. After the condition for requesting or terminating the service for the terminal is satisfied, the network side key management entity is instructed to stop performing the key update of the MBS for the terminal.
  • the present invention further provides a multicast broadcast device, comprising: a receiving determining unit and an indication processing unit, wherein the receiving determining unit comprises: a receiving subunit and/or a determining subunit, wherein
  • the receiving subunit is configured to receive a request for the terminal to withdraw from the MBS;
  • the determining subunit is configured to determine whether the condition for terminating the service provided by the terminal is satisfied; the indication processing unit is configured to satisfy, according to the received request that the terminal exits the MBS, or terminate the service for providing the terminal When the network side key management entity is instructed to stop performing key update of the MBS for the terminal.
  • the present invention will modify the context of the terminal and/or the context of the related MBS service after the MBS server receives the request for the terminal to withdraw from the MBS or terminate the service for providing the terminal, and stops the MBS service charging. And the network side key management entity stops the key update for the terminal, so that the terminal can normally exit the MBS service when actively initiating the request or passively stopping receiving the MBS service.
  • Figure 1 shows an end-to-end reference model in a prior art WiMAX network
  • FIG. 2 is a flow chart of a method for a terminal to exit an MBS in a WiMAX network according to a first embodiment of the present invention
  • FIG. 3 is a flow chart of a method for a terminal to exit an MBS in a WiMAX network according to a second embodiment of the present invention
  • FIG. 4 is a flowchart of an embodiment of a method for a terminal to exit a multicast broadcast service according to a third embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for a terminal to exit an MBS in a WiMAX network according to a fourth embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for a terminal to exit an MBS in a WiMAX network according to a fifth embodiment of the present invention.
  • FIG. 7 is a flowchart of deleting a terminal side MBS service on the network side according to a sixth embodiment of the present invention
  • FIG. 8 is a flowchart of a method for a terminal to exit an MBS in a WiMAX network according to a seventh embodiment of the present invention
  • FIG. 9 is a flowchart of a method for a terminal to exit an MBS in a WiMAX network according to an eighth embodiment of the present invention.
  • Figure 10 is a flow chart showing a method of a terminal exiting an MBS in a WiMAX network according to a ninth embodiment of the present invention.
  • the MBS server After receiving the request for the terminal to exit the MBS or the condition for terminating the service provided by the terminal, the MBS server will modify the context of the terminal, stop the MBS service charging, and stop the key update for the terminal, so that the terminal actively initiates the request or passively stops.
  • the MBS service can be normally quit, and the charging of the MBS service is stopped.
  • the terminal exits the MBS service and has the following possibilities:
  • the terminal actively quits the MBS The user may no longer wish to receive the MBS due to the activation state, which may trigger the exit process.
  • the exit process may be initiated by the terminal in the active state.
  • the terminal moves out of the MBS domain that originally received the service, thereby causing the terminal to exit the MBS.
  • the exit process may be initiated by the network side proxy terminal; or the terminal may initiate the exit MBS process before the shutdown in the active state;
  • the MBS server requires the user to quit MBS: possibly due to insufficient prepaid user balance; and so on.
  • the network device such as the Paging Controller ("PC"); the proxy terminal initiates the exit of the MBS service: the anchor PC may initiate the service deactivation to the MBS server due to the shutdown of the idle state terminal; Or because the terminal moves across the MBS domain, as an optimization scheme, the base station/gateway/anchor PC can initiate a service deactivation to the MBS server by the proxy terminal; or because the terminal abnormally exits the network, the anchor gateway/anchor PC proxy the terminal to the MBS server. Initiate business deactivation; and so on.
  • PC Paging Controller
  • the first embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network, as shown in FIG. 2 .
  • the terminal in this embodiment is an active terminal, and the serving gateway of the terminal provides the terminal with the corresponding MBS.
  • the anchor gateway forwards the IGMP data of the request to the control plane, and the control plane maps the multicast group address contained therein to the specific The MBS, and notify the service gateway where the terminal is located, the terminal wants to exit a certain MBS service, and the notified message content includes: terminal ID, terminal NAI, service ID, content identifier, IP multicast address, and the like.
  • the complete IGMP message can also be encapsulated in the above message and sent to the service gateway.
  • step 203 after the serving gateway receives the message sent in step 202, or if the message in step 201 is processed by the serving gateway, the message is identified on the service gateway data plane and processed by the control plane, the serving gateway is corresponding to
  • the MBS server initiates an MBS service exit request, which indicates that the request to exit the MBS service, and the message content further includes: a terminal ID (MSID), a terminal NAI (MS NAI), a service ID (Service ID), a content identifier (Content ID), and an IP multicast. Address, Leave Indicator, etc.
  • the complete IGMP message can also be encapsulated in the above message and sent to the MBS server.
  • the MBS server is enabled to uniquely determine the terminal and the corresponding MBS that need to exit the MBS according to the message. Then, proceeding to step 204, after receiving the request, the MBS server confirms the validity of the content of the message, and after confirming the validity, returns a successful response message to the monthly service gateway, and can simultaneously modify the context and service context of the terminal, and The MBS charging of the terminal is stopped, and the network side key management entity is notified to stop the key update of the MBS for the terminal.
  • the modifying the terminal context refers to deleting the MBS service related information from the terminal context; modifying the service context refers to deleting the terminal related information from the service context; and modifying the terminal context and modifying the service context as described below. The meanings are the same here, and will not be mentioned later.
  • the serving gateway borrows an R6 interface message, such as an RR REQ (Resource Reservation Request) message, to send a corresponding MBS exit message to the base station of the terminal, where the message content includes the MSID, the MBS.
  • R6 interface message such as an RR REQ (Resource Reservation Request) message
  • RR REQ Resource Reservation Request
  • Information such as the service flow identifier corresponding to the service and the exit service indication.
  • the base station borrows an R1 interface message, such as a DSD REQ (Dynamic Service Delete Request) message, to notify the corresponding terminal to complete the exit MBS process, and the message content includes the MSID, the service flow identifier corresponding to the MBS service, and Exit the business instructions and other information.
  • an R1 interface message such as a DSD REQ (Dynamic Service Delete Request) message
  • the terminal returns a corresponding message, such as DSD, to the base station.
  • the base station carries the MBS service in a point-to-point (PTP) mode
  • PTP point-to-point
  • the air interface resource corresponding to the terminal MBS is released in the DSD process to prevent the air interface resource from being vacant, causing waste of resources
  • the point-to-multipoint (“ ⁇ ") mode carries the MBS service, and the DSD process only acts as a notification, and the terminal releases its resources by itself.
  • the base station then returns a corresponding exit response to the serving gateway to notify the service gateway terminal side that the MBS exit has been successfully completed.
  • the service gateway then sends an MBS exit confirmation to the MBS server.
  • the process proceeds to step 210.
  • the MBS server After receiving the confirmation message, the MBS server returns a success response ACK to the service gateway, indicating that the terminal has successfully exited the MBS, and then modifying the context and service context of the terminal, stopping the MBS charging of the terminal, and notifying the network.
  • the side key management entity stops the key update of the MBS for the terminal. By stopping the update of the key of the MBS service for the terminal, when the MBS service key is changed, the terminal cannot continue to use the MBS service, and the method ensures that the terminal is in the The MBS is terminated after the billing is stopped.
  • the MBS server stops the MBS of the terminal, multiple signaling interactions are performed, thereby ensuring the security of the terminal exiting the MBS.
  • the serving gateway returns a corresponding exit ACK to the base station, notifying the base station that the MBS server has officially terminated the terminal using the MBS and has stopped the corresponding charging.
  • Steps 209 through 211 are optional steps. If context modification, charging, and key related operations have been performed in step 204, steps 209 through 211 may not be performed.
  • the service gateway notifies the anchor gateway to modify the context of the user, and deletes the MBS service related information that has been exited.
  • the base station proceeds to step 213, where the base station modifies the terminal context and the
  • the MBS business context and simultaneously modify the user count of the MBS service, reduces the user count by one. If the MBS is carried in the PTM mode and the modified user count is less than the first threshold, the accurate statistics of the number of the MBS users are triggered. If the number of users accurately counted satisfies the condition for carrying the MBS in the PTP mode, the MBS is The bearer mode is switched from the PTM mode to the PTP mode. If the modified user count is 0, the exact statistics of the number of MBS users are also triggered. If the number of users counted is still 0, then the process proceeds to step 214 where the base station initiates to the serving gateway.
  • the registration process is performed, and the service gateway is notified to not distribute the MBS service data to the base station, and the bearer corresponding to the MBS between the base station and the serving gateway may be removed at the same time, and the air interface resources corresponding to the MBS are released (including the air interface resources in the PTP mode). Or air interface resources in PTM mode).
  • the user count of the MBS identifies the number of terminals in the active state using the MBS, and the number may be changed according to the process in which the terminal participates in and exits the MBS, because in addition to the active state terminal, there may be an idle state.
  • the terminal uses the MBS, and the number of terminals using the MBS in the idle state cannot be clearly identified by the user count.
  • the base station may temporarily modify only the number of users of the MBS, and then select a process of triggering the number of users according to the current number of users to reduce the number of users. The possibility of the base station being useless.
  • the base station notifies the service gateway that it no longer needs to distribute data, there is no service gateway. If any of the base stations continues to receive the MBS service, the service gateway does not need to receive the MBS service again, and then proceeds to step 215, the service gateway initiates a deregistration process to the MBS server, notifying the MBS server not to distribute the service to the service gateway.
  • the MBS service data may also release the bearer at the same time. The manner of releasing the bearer may be to remove the tunnel corresponding to the MBS or the multicast group leaving the MBS, so as to use the available resources for other required services.
  • the anchor gateway replaces the serving gateway to perform related signaling transmission and operation.
  • the MBS proxy function entity includes a signaling plane function and a data plane function; wherein the signaling plane function is mainly responsible for signaling forwarding between the ASN entity and the MBS server and controlling resources of the MBS in the ASN;
  • the face function is mainly responsible for receiving MBS service data from the MBS server and distributing it to each gateway that carries the MBS.
  • the IGMP message in this embodiment is only a manifestation of application layer signaling, and the terminal can directly interact with the MBS server through any form of application layer signaling (the WiMAX bearer network only serves as a bearer, and the signaling content). If the MBS server does not perceive the signaling of the MBS service, the MBS server may only instruct the key management entity to stop updating the key for the terminal and stop charging the user. If the network is aware of the bearer, the MBS server may notify the bearer network after the signaling of the MBS service is removed from the terminal.
  • the specific steps and implementations are similar to the steps 205 to 215, and are not mentioned here.
  • the second embodiment of the present invention is substantially the same as the first embodiment, and also relates to a method for a terminal to exit the MBS in a WiMAX network, as shown in FIG.
  • the terminal in this embodiment is also an active terminal, and the service gateway of the terminal provides the terminal with the corresponding MBS.
  • step 301 the terminal borrows the R1 interface message, such as
  • the DSD REQ message informs the base station that the terminal wants to quit the MBS service, and the message carries the Multicast CID, Traffic CID or / and service of the MBS that wishes to exit.
  • the base station borrows the R6 interface message, for example, the RR REQ message notifies the service gateway that the terminal requests to exit the MBS, and the message also carries the MBS that wishes to exit. Multicast CID, Traffic CID or / and service ID.
  • the serving gateway initiates an MBS service exit request to the MBS server, where the request indicates that the MBS service is requested to be withdrawn, and the message content further includes: a terminal ID (MSID), a terminal NAI (MS NAI), and a service ID (Service). ID), Content ID, IP Multicast Address, Leave Indicator, etc.
  • MSID terminal ID
  • MS NAI terminal NAI
  • Service service ID
  • Content ID Content ID
  • IP Multicast Address IP Multicast Address
  • Leave Indicator etc.
  • the MBS server confirms the validity of the message content, returns a successful response message to the service gateway after confirming the validity, and can simultaneously modify the context and the MBS service of the terminal.
  • Context Stop the MBS charging of the terminal; notify the network side key management entity to stop the key update of the MBS for the terminal, or perform any one or a combination thereof.
  • the serving gateway borrows the corresponding R6 interface message, such as an RR RSP message, to send an MBS exit response message to the base station of the terminal, where the content of the response message includes the MSID and the corresponding MBS service.
  • Information such as the service flow identifier and the exit service indication.
  • the base station borrows the corresponding R1 interface message, for example, the DSD RSP message notifies the corresponding terminal to complete the exit MBS process, and the message content includes the MSID, the service flow identifier corresponding to the MBS service, and the exit service indication. information.
  • the terminal may selectively return an exit response to the base station, and notify the base station that the terminal has confirmed to exit the MBS. If the base station carries the MBS service through the PTP mode, the base station can release the air interface resource corresponding to the MBS of the terminal to prevent the air interface resource from being vacant, resulting in waste of resources. Then proceed to step 308.
  • Steps 308 to 315 are similar to steps 208 to 215, and are specifically referred to above, and are not described herein again.
  • the third embodiment of the present invention is substantially the same as the implementation process of the second real-time mode, and is also related to
  • the method for the terminal to exit the MBS in the WiMAX network is shown in Figure 4.
  • the terminal in this embodiment is also an active terminal, and the serving gateway of the terminal provides the terminal with the corresponding MBS.
  • Step 401 The terminal actively sends an exit MBS service (such as a DSD-REQ message) to the ASN, requesting to quit an MBS service.
  • the parameters carried by the message include: MBS service identifier (which can be SFID, Or MBS Contents ID, or multicast IP address/port number, or proof authority Authentication Token, Multicast CID, etc., and/or MBS Service, but not limited to this.
  • Step 402 The ASN sends a terminal to the PF to quit the MBS service request message (for the roaming scenario, to be transferred between the V-PF and the H-PF), and the parameters carried by the message include: an MBS service identifier and/or a deletion indication, but Not limited to this.
  • Step 403 The PF sends a terminal to the MBS server to quit the MBS service request message, and the parameters carried by the message include: an MBS service identifier and a deletion indication.
  • Step 404 After the MBS server performs the policy, the MBS service response message is sent to the PF, and the parameters carried by the message include: an MBS service identifier and a processing result.
  • the MBS server modifies the MBS service context and the terminal context, stops charging the terminal user, and stops distributing the key to the terminal user.
  • Step 405 The PF sends a terminal to the ASN to exit the MBS service response message.
  • the parameters carried in the message include: MBS service identifier and processing result.
  • Step 406 The ASN and the terminal continue the DSD process, and complete the MBS resource deletion process on the terminal side. After this step, the transmission mode transition and the adjustment of the bearer may be initiated, and the specific implementation process is similar to the above embodiment, and will not be described here.
  • a fourth embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network, as shown in FIG. 5.
  • the terminal in this embodiment is a terminal in an idle state.
  • the terminal in the idle state can implement the exit of the MBS service through the existing Location Update procedure.
  • the process proceeds to step 501, and the terminal notifies the base station that the terminal wants to exit the MBS, and may specifically notify by using the extended "Rng_Req" message.
  • the action code is Location Update.
  • the terminal adds the MBS service identifier and the Multicast CID, SFID, Content ID, etc. in the "Rng_Req” message, and can also add the MBS exit message to the message. logo.
  • the base station may directly notify the anchor PC or notify the anchor point through the relay PC through the request message, such as the "Location Update Req" message, to notify the anchor PC according to the normal Location Update process.
  • the "Location Update Req" message includes one of the identifier of the exit MBS and one of the MBS service identifier, the multicast CID, the SFID, the Content ID, or any combination thereof.
  • the anchor PC processes the message according to the existing Location Update process. If the discovery message includes the identifier of the exit MBS, the anchor PC sends the message to the MBS.
  • the corresponding server initiates the exit MBS service authorization request, and the message includes the MSID, the NAI, and the corresponding MBS identifier.
  • the MBS server performs corresponding authorization, and after the MBS server confirms the authorization, returns a successful response message to the anchor PC. It is also possible to modify the context of the terminal and the MBS service context at the same time, and stop the MBS charging of the terminal and notify the network-side key management entity to stop the MBS key update for the terminal.
  • the anchor PC returns a response message to the base station side according to the existing Location Update process, such as "Location Update Response", and the message may also return directly to the base station or indirectly to the base station through the relay PC.
  • the message contains the MBS identifier and a confirmation ID that the terminal exits the service.
  • the base station after verifying the validity of the "Rng_Req” message sent by the terminal, notifies the terminal that the Location Update is successful through the corresponding "Rng_Rsp” message. Indicates that the corresponding MBS has exited.
  • the MBS ID and the result ID are included in the "Rng_Rsp" message.
  • the terminal may selectively return a corresponding response message to the base station.
  • the base station returns a "Location Update Confirm" message to the anchor PC according to the Location Update process, where the message includes the identifier of the terminal exiting the MBS and the corresponding MBS identifier, and the anchor PC terminal is notified that the packet has succeeded. Exiting MBS was confirmed.
  • the anchor PC successfully receives the "Location Update Confirm" message, it interacts with the MBS server, sends an exit confirmation to the MBS server, and notifies the MBS server that the terminal has completely exited the specified MBS service.
  • the MBS server modifies the terminal context and/or modifies the MBS service context, and stops the MBS charging of the terminal, instructing the network side key management entity to stop the MBS secret to the terminal. Key update.
  • the exit ACK is then returned to the anchor PC.
  • the anchor PC returns a corresponding exit ACK to the base station, notifying the base station that the MBS server has officially terminated the terminal using the MBS and has stopped the corresponding charging.
  • Steps 509 through 511 are optional steps. If context modification, charging, and key related operations have been performed in step 504, steps 509 through 511 may not be performed.
  • the anchor gateway should also be notified to modify the saved terminal context information.
  • a fifth embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network.
  • the terminal does not actively exit the MBS, but when the condition for terminating the service to the terminal is satisfied (such as insufficient balance), the MBS server terminates the MBS service of the terminal, as shown in FIG. 6.
  • the process proceeds to step 601, and the MBS server sends an MBS service exit indication to the gateway (service gateway or anchor gateway) that carries the MBS for the terminal.
  • the indication message includes: MSID, NAI, MBS service identifier, MBS content identifier, etc., and uniquely determines the terminal that needs to exit the MBS and the corresponding MBS.
  • the MBS server can modify the context of the terminal and the MBS service context at the same time, and stop the MBS charging of the terminal and stop the MBS key update of the terminal through the network side key management entity.
  • the serving gateway or the anchor gateway confirms the message according to the previously saved user information. And return a response message.
  • the MBS server may perform corresponding operations at this time if the MBS server does not perform related context modification and key and charging related operations in step 601. Since the network side key management entity stops updating the key for the terminal, and the MBS key update is still performed normally, the terminal cannot continue to use the MBS. In order to force the terminal to immediately stop using the MBS, the MBS server can initiate an MBS service key update process after confirming that the MBS is no longer provided for the terminal, so that the terminal cannot continue to use the MBS through the original key.
  • Steps 602, 603 are optional here, and if they do not occur at this time, they may wait until steps 608, 609.
  • the serving gateway or the anchor gateway borrows the R6 interface message, and the RR REQ message informs the base station of the terminal that the terminal can no longer use the MBS service.
  • Message content contains MSID, service flow identifier corresponding to the MBS service, and information such as the exit service indication.
  • the base station borrows the R1 interface message, for example, the DSD REQ message notifies the corresponding terminal to exit the MBS, and the message content includes the MSID, the service flow identifier corresponding to the MBS service, and the information of the exit service indication.
  • the terminal returns a corresponding response message to the base station, such as
  • the base station carries the MBS service through the PTP mode, the air interface resource of the terminal MBS is released in the DSD process to prevent the air interface resource from being vacant, resulting in waste of resources. If the base station carries the MBS service through the PTM mode, the DSD process only starts. The role of the announcement, the terminal itself releases its resources. Then proceed to step 507.
  • Steps 608 and 609 are optional steps. If steps 602 and 603 have been executed, the two steps do not have to be performed. If the steps 602 and 603 are not performed, the execution is performed here, and the execution content is consistent with 602 and 603.
  • Steps 610 to 613 are similar to steps 208 to 214, wherein steps 610 to 611 are optional, that is, the serving gateway or the anchor gateway may send an MBS exit confirmation to the MBS server, and receive an ACK response from the MBS server. Afterwards, the anchoring gateway is notified to modify the terminal context, and then the corresponding exit ACK is returned to the base station; or after receiving the exit response from the base station, the serving gateway or the anchor gateway notifies the anchoring gateway to modify the terminal context, and deletes the MBS information.
  • steps 610 to 611 are optional, that is, the serving gateway or the anchor gateway may send an MBS exit confirmation to the MBS server, and receive an ACK response from the MBS server. Afterwards, the anchoring gateway is notified to modify the terminal context, and then the corresponding exit ACK is returned to the base station; or after receiving the exit response from the base station, the serving gateway or the anchor gateway notifies the anchoring gateway to modify the terminal context, and deletes the MBS information.
  • the sixth embodiment of the present invention is similar to the fifth embodiment.
  • the MBS server actively terminates the MBS service of the terminal, as shown in FIG. 7.
  • Step 701 The MBS server sends a terminal exit request to the PF, where the parameters carried by the request may include an MBS service identifier and a terminal identifier (such as a network access identifier NAI) for identifying the terminal.
  • the network side key management entity is instructed to stop updating the key for the terminal.
  • Step 702 The PF (Policy Function) sends a terminal exit request to the ASN, where the parameters carried by the request may include an MBS service identifier and a terminal identifier (such as a network access identifier NAI) for identifying the terminal.
  • the PF sends an MBS delete request to the ASN, the ASN modifies the MBS service context and the terminal context.
  • MBS Server - PF Anchor SFA - Serving SFA (Service Business Authorizer).
  • Step 703 The ASN sends a terminal to the terminal to quit the MBS service request, for example, the ASN passes the dynamic The service deletion request message DSD-REQ sends an MBS service deletion request to the terminal, and sends an MBS service modification request to the terminal through the dynamic service modification request message DSC-REQ.
  • the parameter carried in the message may be an MBS service identifier and/or a multicast indication (MBS Service).
  • MBS service identifier can be an SFID, an MBS Contents ID or a multicast IP address/port number, a Multicast CID, an MBS GSA ID, or an authorization token.
  • Step 704 The terminal processes the request and returns the processing result to the ASN. If the MBS service is deleted, the terminal deletes the resources related to the MBS service.
  • Step 705 The ASN returns to the PF to delete the MBS service response.
  • Step 706 The PF returns a MBS service response to the MBS server.
  • the transmission mode transition and the adjustment of the bearer may be caused, which are similar to the above embodiment, and are not described herein again.
  • a seventh embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network.
  • the terminal in this embodiment is an idle state terminal.
  • the anchor PC acts as a proxy instead of the idle state.
  • the terminal initiates the exit of the MBS service, as shown in Figure 8.
  • the anchor PC finds that the idle state terminal exits the network.
  • the idle state terminal exits the network, and the terminal can be shut down in the idle mode, after a successful location update process with the network identifier (Power Down Location Update); or one of the network side AAA server, the external proxy, the anchor PC or Any combination of the idle state terminal is triggered to exit the network; or the anchor PC finds that the idle state terminal is abnormally dropped.
  • the MBS service information of the terminal saved by the anchor PC finds that the base station after the location update process belongs to a different MBS domain than the previous base station for the MBS service that the terminal is receiving.
  • the anchor PC sends an MBS service exit request to the associated MBS server according to the saved MBS service information of the terminal, requesting to quit the MBS service.
  • the MBS server modifies the context of the terminal and/or the context of the MBS service, and stops the MBS charging of the terminal, and notifies the network-side key management entity to stop performing MBS on the terminal. Key update. Therefore, when the terminal is shut down unexpectedly, the terminal can normally exit the MBS service and stop charging for the service.
  • the anchor PC needs to further notify the anchor gateway to modify the terminal. Side context.
  • An eighth embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network.
  • the anchor gateway acts as a proxy, instead of the terminal, initiates the exit of the MBS service, specifically, for example, Figure 9 shows.
  • the anchor gateway discovers that the terminal exits the network.
  • the anchor gateway receives a message from the serving gateway or the serving base station for instructing the user to quit the network, and the message may register the message for the data channel;
  • the anchor PC processes the network retreat process, the anchor PC notifies the corresponding anchor gateway that the terminal exits the network.
  • the anchor gateway sends an MBS service exit request to the relevant MBS server according to the saved MBS service information of the terminal, and requests to exit the MBS. business.
  • the MBS server modifies the context of the terminal and/or the context of the MBS service, and stops the MBS charging of the terminal, and notifies the network-side key management entity to stop performing MBS on the terminal. Key update. Therefore, when the terminal is shut down unexpectedly, the terminal can normally exit the MBS service and stop charging for the service.
  • a ninth embodiment of the present invention relates to a method for a terminal to exit an MBS in a WiMAX network.
  • the terminal in this embodiment is an active state terminal.
  • the target or source ASN acts as a proxy, instead of the terminal, initiates the exit of the MBS service, as shown in FIG.
  • step 1001 the terminal switches from the source ASN to the target ASN through the handover procedure, and removes the MBS domain that is receiving the MBS service.
  • step 1002 after the source ASN finds that the terminal handover is completed, according to the saved MBS service information of the terminal and the information of the target ASN obtained in the handover process, if the MBS service that is being received by the terminal is found, the target ASN is found. If the source ASN does not belong to the same MBS domain, that is, when the terminal moves out of the original MBS domain, it sends an MBS service exit request to the relevant MBS server to request to exit the MBS service.
  • step 1002' after the target ASN finds that the terminal handover is completed, according to the obtained If the MBS service information of the terminal and the source ASN information obtained during the handover process are found, the target ASN and the source ASN do not belong to the same MBS domain, and the terminal is found to have moved out of the original MBS. In the case of a domain, an MBS service exit request is sent to the relevant MBS server to request to exit the MBS service.
  • the MBS server modifies the context of the terminal and/or the context of the MBS service, and stops the MBS charging of the terminal, and notifies the network-side key management entity to stop performing MBS on the terminal. Key update. Therefore, when the terminal is shut down unexpectedly, the terminal can normally exit the MBS service and stop charging for the service.
  • the anchor ASN can also initiate the exit MBS service by the proxy terminal, and the process is consistent with the foregoing.
  • the communication between the ASN and the MBS server may be through a policy control entity, which is similar to the third embodiment, and is not mentioned here.
  • the ASN includes a gateway and a base station.
  • the ASN below has the same meaning as here and will not be mentioned.
  • the related network elements involved in the foregoing embodiments are a base station, a gateway, a paging controller, a policy control entity, and an MBS server, but in actual applications, there may also be an MBS proxy (MBS Proxy) or The specific operations of the other gateways are similar to those of the base station or the gateway, and are not described here.
  • MBS Proxy MBS proxy
  • a tenth embodiment of the present invention relates to a multicast broadcast system including at least one MBS server for providing an MBS service, and a bearer network connecting the MBS server and the terminal, the MBS server also being used to exit at the receiving terminal
  • the network side key management entity is instructed to stop performing the MBS key update for the terminal.
  • the bearer network includes a service gateway, an anchor gateway, an anchor PC, and a base station.
  • the anchor gateway further includes one of the following or any combination thereof: after discovering that the terminal needs to exit the MBS, for example, when determining that the terminal exits the network, notifying the MBS server or the serving gateway of the terminal that the terminal exits the MBS unit; and/or After receiving the notification that the terminal exits the MBS, the unit of the terminal context is modified.
  • the service gateway further includes one of the following units or any combination thereof: after receiving the notification that the active terminal terminates the MBS, notifying the MBS server that the terminal exits the MBS unit; after the terminal exits the MBS, modifying the context of the terminal and/or The unit of the context corresponding to the MBS service; after the terminal exits the MBS, the anchor gateway is notified to modify the unit of the context of the terminal; after the terminal exits the MBS, the base station where the terminal is located is notified that the terminal exits the unit of the MBS.
  • the policy function entity further includes one of the following units or any combination thereof: after receiving the notification that the active terminal terminates the MBS, notifying the MBS server that the terminal exits the MBS unit; after the terminal exits the MBS, notifying the anchor gateway to modify The unit of context of the terminal.
  • the base station further includes one of the following units or any combination thereof: after the terminal exits the notification of the MBS, the unit of the user context and/or the unit of the MBS service context are modified; after receiving the notification that the terminal exits the MBS, the corresponding MBS is modified. a unit for counting the user; a determining unit that determines whether the modified user count satisfies a predetermined condition, triggering a first unit of the adjustment process of the MBS bearer; and when the determining unit determines that the modified user count satisfies a predetermined condition, the first unit triggers the The adjustment process of the MBS bearer.
  • the anchor PC further includes one of the following units or any combination thereof: when the idle state terminal needs to exit the MBS, if it is determined that the idle state terminal exits the network, the MBS server corresponding to the MBS service initiates a request for the terminal to exit the MBS.
  • the unit after receiving the notification that the terminal exits the MBS, modifying the unit of the terminal context; after receiving the notification that the terminal exits the MBS, notifying the anchor gateway of the terminal to modify the unit of the terminal context.
  • the terminal can exit the MBS service normally, whether it is in the active state or in the idle state, whether the terminal actively wants to stop the MBS service or is unexpectedly shut down due to external reasons. Billing for this service.
  • each unit mentioned above is a logical unit, and may be implemented in the same physical unit in actual application, or may be implemented in multiple physical units.
  • the MBS server when the MBS server receives the exit MBS service request from the terminal, or the network side actively requests the terminal to exit the MBS service condition, the MBS server may have the following actions to ensure that the subsequent terminal cannot receive the MBS service:
  • the MBS Authorization Key (MAK) key management entity can be notified, and the terminal is deleted from the list maintained by the terminal to ensure that the subsequent MAK key is not updated.
  • the terminal is to be updated; at the same time, the key management entity may be triggered to initiate a key update process;
  • the group key encryption key (GKEK) key management entity can be notified, and the terminal is deleted from the list maintained by the terminal to ensure that the subsequent MAK key is not updated when the terminal is updated. Updating; at the same time, the key management entity may be triggered to initiate a key update process; 3) the MBS Group Traffic Encryption Key (MGTEK) key management entity may be notified, and the terminal is The maintenance list is deleted to ensure that the terminal is not updated when the subsequent MAK key is updated. At the same time, the key management entity may be triggered to initiate the key update process.
  • GKEK group key encryption key
  • the MBS server after receiving the request for the terminal to withdraw from the MBS or the condition for terminating the service provided by the terminal, modifies the context of the terminal and/or the context of the related MBS service, and stops the MBS service.
  • the billing is performed, and the network side key management entity stops the key update for the terminal, so that the terminal can normally exit the MBS service and stop charging the MBS service when actively initiating the request or passively stopping receiving the MBS service.
  • the MBS server directly notifies the service gateway, or indirectly informs the service gateway of the exit information through the anchor gateway, prompting the service gateway to receive the terminal to exit the MBS.
  • the base station modifies the user context and/or modifies the MBS service context, and modifies the user count of the corresponding MBS. And triggering the adjustment process of the MBS bearer according to the user count.
  • the adjustment process includes one or any combination of the following:
  • the base station carries the MBS. Adjusted to PTP by PTM, thereby reducing the consumption of service resources and improving the utilization of resources;
  • the modified user count is 0, it indicates that the active terminal does not use the MBS, and the exact statistics of the number of MBS users are triggered. It is detected whether there is still an idle state terminal using the MBS, and if the number of users accurately counted is also 0.
  • the base station notifies its serving gateway to stop distributing data to the base station, and can simultaneously remove the MBS bearer between the base station and its serving gateway and release the air interface resource corresponding to the MBS, so as to avoid resources being vacant and forming a waste of resources; If the MBS is carried in the PTP mode, the base station does not need to wait for all the users to exit the MBS, and the air interface resources corresponding to the terminal can be released first, so that the resources can be recycled in time to improve the utilization of resources;
  • the service gateway needs to initiate a deregistration process to the MBS server, informing it to stop distributing the service data to the gateway, and also releasing the idle resources, thereby avoiding the waste of resource vacancy.
  • the request to exit the MBS service may be sent to the MBS server indirectly through the anchor gateway according to the characteristics of the WiMAX network, or indirectly sent to the MBS server through the base station and the service gateway, and the flexibility is high.
  • the MBS server triggers the terminal to exit the corresponding MBS service according to the condition for terminating the service for the terminal, the terminal information and the corresponding MBS information are first notified to the serving gateway, and the MBS server updates after receiving the notification or receiving the response message from the gateway.
  • the context information of the terminal and the service context terminate the service for the terminal.
  • the terminal paging controller (Paging Controller, referred to as "PC") initiates a request for the terminal to exit the MBS to the MBS server corresponding to the MBS service, and the terminal can update the location through the shutdown.
  • the triggering PC sends a request to log out of the MBS service, and the terminal may request the MBS service to exit from the anchor PC through the base station.
  • the anchor PC initiates an MBS service exit request to the corresponding MBS server according to the request.
  • the terminal can normally exit the MBS service and stop charging the service regardless of whether the terminal wants to stop the MBS service or the unexpected shutdown due to external reasons.
  • the anchor gateway of the terminal may initiate a request for the terminal to exit the MBS to the MBS server corresponding to the MBS service.
  • the anchoring gateway receives a message from the serving gateway or the serving base station to instruct the user to quit the network.
  • the idle state terminal whether the active network is disconnected, the passive network is disconnected, or the network is unexpectedly retired, after the anchor PC processes the network retreating process, , will notify the anchor gateway user to quit the network.
  • the anchor gateway initiates an MBS service exit request to the corresponding MBS server according to the MBS service information in the terminal context maintained by it.
  • the terminal can normally exit the MBS service and stop charging for the service in any network exit scenario.
  • the base station releases the bearer of the MBS, and notifies the serving gateway to which the base station belongs to modify the saved MBS user list. If all the base stations under the serving gateway release the bearer of the MBS, the serving gateway requests the MBS server to register the MBS. Release the appropriate resources. By timely detecting the business requirements, the relevant resources are released in time when there is no service demand, so that the MBS service resources can be fully utilized and the resource utilization rate is improved.
  • an embodiment of the present invention further provides a multicast broadcast device, a receiving determining unit, and an indication processing unit, where the receiving determining unit includes: a receiving subunit and/or a determining subunit.
  • the receiving subunit configured to receive a request for the terminal to exit the MBS; the determining subunit, configured to determine whether the condition for terminating the service provided by the terminal is satisfied; the indication processing unit, configured to: according to the received When the terminal exits the MBS request or terminates the condition for providing the service to the terminal, the network side key management entity is instructed to stop performing the MBS key update for the terminal.
  • the multicast broadcast device further includes:
  • Modifying the charging unit configured to modify the context of the terminal and/or the context corresponding to the MBS service after the MBS server receives the request for the terminal to withdraw the MBS or terminate the service for the terminal, and stops The MBS billing of the terminal.
  • the multicast broadcast device further includes:
  • a notification unit configured to notify the functional entity that provides the MBS service for the terminal after the terminal exits the MBS, and the terminal has exited the MBS.
  • the multicast broadcast device further includes:
  • the initiating unit is configured to, when determining that the terminal needs to exit the MBS, initiate a request for the terminal to exit the MBS to a function entity that provides an MBS service for the terminal.
  • the functional entity providing the MBS service for the terminal may include: a base station, a serving gateway, an anchor gateway, an anchor paging controller, and/or a policy function entity.

Landscapes

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

Abstract

L'invention concerne un procédé, un dispositif et un système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s'interrompant au niveau d'un terminal. Le terminal de réseau WiMAX peut interrompre normalement un service MBS. Lorsque le serveur de MBS reçoit la demande d'interruption du terminal ou lorsqu'une condition d'interruption de service fournie pour le terminal est satisfaite, le serveur de MBS modifie un contexte du terminal, stoppe la comptabilité et notifie à une entité de gestion de clé côté réseau d'interrompre la mise à jour de clé pour le terminal. Si le terminal est actif, après confirmation par le serveur de MBS que le terminal interrompt le service MBS, le serveur de MBS ou une passerelle d'ancrage communique à une passerelle de services les informations d'interruption. La passerelle de services communique à une station de base desservant le terminal le fait qu'elle doit modifier le compte utilisateur correspondant au MBS et déclenche une procédure de régulation de porteuse lorsque le compte utilisateur satisfait une condition présélectionnée. Si la station de base supporte le service MBS par mode PTP, après interruption du service MBS par le terminal, la station de base libère des ressources correspondant au MBS du terminal.
PCT/CN2007/070740 2006-09-20 2007-09-20 Procédé, dispositif et système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s'interrompant au niveau d'un terminal WO2008040243A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN200610159446.4 2006-09-20
CN200610159446 2006-09-20
CNA2006101270821A CN101155328A (zh) 2006-09-26 2006-09-26 通信系统中删除/修改组播广播业务的方法
CN200610127082.1 2006-09-26
CN200710004847.7 2007-02-02
CN2007100048477A CN101150852B (zh) 2006-09-20 2007-02-02 终端退出多播广播业务的方法及多播广播系统

Publications (1)

Publication Number Publication Date
WO2008040243A1 true WO2008040243A1 (fr) 2008-04-10

Family

ID=39268108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/070740 WO2008040243A1 (fr) 2006-09-20 2007-09-20 Procédé, dispositif et système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s'interrompant au niveau d'un terminal

Country Status (1)

Country Link
WO (1) WO2008040243A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002217973A (ja) * 2001-01-15 2002-08-02 Nippon Telegr & Teleph Corp <Ntt> マルチキャスト通信システム
CN1437355A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 移动网络中多播用户的管理方法
CN1536795A (zh) * 2003-04-04 2004-10-13 北京三星通信技术研究有限公司 用户选择mbms业务的方法
CN1731756A (zh) * 2004-08-05 2006-02-08 上海贝尔阿尔卡特股份有限公司 用缓慢离开机制处理用户离开、切换组播业务频道请求的方法和装置
CN1794867A (zh) * 2005-06-30 2006-06-28 华为技术有限公司 多播业务中停止用户会话的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002217973A (ja) * 2001-01-15 2002-08-02 Nippon Telegr & Teleph Corp <Ntt> マルチキャスト通信システム
CN1437355A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 移动网络中多播用户的管理方法
CN1536795A (zh) * 2003-04-04 2004-10-13 北京三星通信技术研究有限公司 用户选择mbms业务的方法
CN1731756A (zh) * 2004-08-05 2006-02-08 上海贝尔阿尔卡特股份有限公司 用缓慢离开机制处理用户离开、切换组播业务频道请求的方法和装置
CN1794867A (zh) * 2005-06-30 2006-06-28 华为技术有限公司 多播业务中停止用户会话的方法

Similar Documents

Publication Publication Date Title
JP5259637B2 (ja) 無線通信システムにおけるブロードキャストアプリケーションのための方法および装置
US8184569B2 (en) Method for terminal to join multicast broadcast service in wireless network and system using thereof
US8270324B2 (en) Method for bearer control and deletion, data distribution, and modification
CN101155343B (zh) 无线网络中终端加入多播广播业务的方法及其系统
EP2106646B1 (fr) Client igmp mandataire et procédé pour fournir des services de diffusion à multidiffusion dans un réseau d&#39;accès sans fil à large bande
KR101201668B1 (ko) 광역 망에서의 방송 서비스 방법
WO2008046337A1 (fr) Système wimax et procédé de transfert de terminal et station de base appropriée
WO2008046347A1 (fr) Procédé de commutation en mode de radiodiffusion de service mbms, procédé de transfert de terminal, station de base et réseau
US20060140159A1 (en) Method for multimedia broadcast/multicast service signaling bearer connection on iu interface
WO2008110097A1 (fr) Procédé et station de base permettant d&#39;activer un service multimédia de diffusion multicast d&#39;une communauté cible
KR101014014B1 (ko) 멀티캐스트 서비스 및/또는 브로드캐스트 서비스를 제공하기 위한 이동 통신망 및 그 방법
WO2007051423A1 (fr) Systeme et procede de communication pour l’entree et la sortie du mode repos d’un terminal
WO2008043298A1 (fr) Procédé et station de base pour terminal mobile dans un système de diffusion multidestination
WO2008046350A1 (fr) Procédé et station de base permettant de compter le nombre d&#39;utilisateurs d&#39;un service mbms
WO2011026407A1 (fr) Procédé et système de prise en charge de mobilité de connexion d&#39;accès par protocole internet local
CN101166306A (zh) 承载控制、承载删除及数据分发的方法、系统及网络节点
WO2023029590A1 (fr) Procédé de gestion de session de diffusion/multidiffusion et appareil de communication
WO2022166559A1 (fr) Procédé et appareil de communication
WO2009103244A1 (fr) Procédé et système de configuration de service de diffusion/multidiffusion dans un réseau sans fil
WO2008040202A1 (fr) Procédé, appareil et système de transmission de services mbms dans un réseau de trafic ip
WO2010130227A1 (fr) Procédé destiné à libérer un chemin de données de diffusion générale et de diffusion groupée et système associé
WO2007109995A1 (fr) Procédé permettant à un terminal de quitter un réseau et système de communication mobile
WO2008040243A1 (fr) Procédé, dispositif et système de multidiffusion/diffusion pour un service de multidiffusion/diffusion s&#39;interrompant au niveau d&#39;un terminal
WO2014071798A1 (fr) Procédé de gestion de connexion de déchargement, élément de réseau côté radio et entité de gestion de mobilité
WO2011097988A1 (fr) Procédé et système de communication mobile permettant de gérer des données ip locales

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07816931

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07816931

Country of ref document: EP

Kind code of ref document: A1