WO2011047532A1 - Procédé amélioré de mise en œuvre et dispositif associé pour services évolués de diffusion multimédia/multidiffusion - Google Patents

Procédé amélioré de mise en œuvre et dispositif associé pour services évolués de diffusion multimédia/multidiffusion Download PDF

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Publication number
WO2011047532A1
WO2011047532A1 PCT/CN2010/001529 CN2010001529W WO2011047532A1 WO 2011047532 A1 WO2011047532 A1 WO 2011047532A1 CN 2010001529 W CN2010001529 W CN 2010001529W WO 2011047532 A1 WO2011047532 A1 WO 2011047532A1
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WO
WIPO (PCT)
Prior art keywords
epc
service
radio resource
mce
status information
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Application number
PCT/CN2010/001529
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English (en)
Chinese (zh)
Inventor
张鹏
赵训威
姜怡华
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新邮通信设备有限公司
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Publication of WO2011047532A1 publication Critical patent/WO2011047532A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the present invention relates to network communication technologies, and in particular, to an improved evolved multimedia broadcast multicast service implementation method and apparatus.
  • Evolved Multimedia Broadcast Multicast Services refers to point-to-multipoint services in which data sources in a wireless network send data to multiple users.
  • FIG. 1 is a schematic diagram of an eMBMS service initiation process in the prior art.
  • the evolved packet core network EPC, Evolved Packet Core
  • EPC Evolved Packet Core
  • MCE Multi-Cell/Multicast Coordination Entity
  • the MCE allocates radio resources for the service, determines the air interface transmission format, and then sends the new MCE session control request message to the base station (eNB) in combination with the received EPC session control request message.
  • the eNB sends an MCE session control response message to the MCE, and the MCE sends an EPC session control response message to the EPC.
  • the eNB performs data transmission according to the radio resource usage mode indicated by the MCE.
  • the EPC here includes an evolved Broadcast Multicast Service Center (eBM-SC).
  • eBM-SC evolved Broadcast Multicast Service Center
  • the EPC determines the multiplexed service: The EPC determines which services are multiplexed according to the service characteristics, and can give the total aggregate maximum bit rate (AMBR), and sends the AMBR to the EPC session control request message. MCE and MCE allocate resources according to AMBR for multiplexed services. The subsequent process is the same as Figure 1.
  • the MCE determines the multiplexed service: When the EPC initiates an EPC session control request, the MCE determines which services are multiplexed together and determines their total AMBR to allocate air interface resources for the multiplexed services. The subsequent process is the same as Figure 1.
  • the above two methods have the following disadvantages: [8] For mode 1), on the one hand, the service multiplexed AMBR determined by the EPC may not be supported by radio resources in the air interface, which may cause service establishment failure; on the other hand, the air resources of the air interface are sufficient to provide a large At the rate ⁇ , the service multiplexing AMBR determined by the EPC may be small, so that the wireless resources cannot be effectively utilized.
  • EPC does not know the AMBR determined by MCE, and the data rate is higher in EPC.
  • the eNB may experience packet loss.
  • the EPC does not know the allocation of the radio resources, and the eMBMS service process is not optimized.
  • the present invention provides an improved eMBMS implementation method for an evolved multimedia broadcast multicast service, which optimizes the eMBMS service process.
  • the present invention also provides an evolved packet core network EPC capable of optimizing the operational process of the eMBMS.
  • the present invention also provides a multi-cell I multicast coordination entity MCE, which can optimize the eMBMS service process.
  • the present invention discloses an improved evolved multimedia broadcast multicast service eMBMS implementation method, the method comprising:
  • Evolved Packet Core Network EPC receives radio resource status from multi-cell I Multicast Coordination Entity MCE
  • the EPC performs corresponding control on the eMBMS according to the received radio resource status information.
  • the present invention also discloses an evolved packet core network EPC, where the EPC includes: an obtaining unit and a control unit, where
  • an acquiring unit configured to receive radio resource status information from the multi-cell I multicast coordination entity MCE, and send the information to the control unit;
  • a control unit configured to perform corresponding control on the eMBMS according to the received radio resource status information.
  • the present invention also discloses an MCE, where the MCE includes: a notification module, configured to evolve the packet core
  • the heart network EPC sends radio resource status information, so that the EPC performs corresponding control on the eMBMS according to the radio resource status information.
  • the EPC of the present invention acquires radio resource status information from the MCE, and performs corresponding control on the eMBMS according to the acquired radio resource status information, so that the EPC can know the current wireless in the eMBMS service process.
  • FIG. 1 is a schematic diagram of an eMBMS service initiation process in the prior art
  • FIG. 2 is a flowchart of an improved eMBMS implementation method according to an embodiment of the present invention
  • FIG. 3 is a flow chart of the EPC determining the multiplexing service and implementing the eMBMS according to an embodiment of the present invention
  • FIG. 4 is a flowchart of the MCE determining the multiplexing service and implementing the eMBMS according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of an EPC according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of an improved eMBMS implementation method according to an embodiment of the present invention. As shown in Figure 2, the method includes:
  • Step 201 The EPC receives radio resource status information from the MCE.
  • the MCE can transmit radio resource status information to the EPC on the M3 interface.
  • Step 202 The EPC performs corresponding control on the eMBMS according to the received radio resource status information.
  • the radio resource status information may include: occupation of radio resources by the current service (for example, which subframe is occupied), remaining available radio resources (ie, unoccupied radio resources), and the like.
  • the EPC obtains initial radio resource status information from the MCE by configuring or utilizing the MCE initialization message, and determines, according to the initial radio resource status information, in the first initiated eMBMS session control process.
  • the total bit rate AMBR of the multiplexed service in each EMBMS session control process, the MCE feeds back the radio resource status information of the current service setup to the EPC in the EPC session control response message; initiated after the first eMBMS session control process
  • the EPC determines the AMBR of the multiplexed service according to the radio resource status information that the MCE feeds back during the last eMBMS session control process.
  • FIG. 3 is a detailed description of FIG. 3 as an example.
  • FIG. 3 is a flow chart of the EPC determining the multiplexing service and implementing the eMBMS according to an embodiment of the present invention. As shown in Figure 3, the following steps are included:
  • Step 301 Initially, the EPC obtains initial radio resource status information.
  • the EPC can obtain initial radio resource status information from the MCE by configuring or using the MCE initialization message.
  • the manner of using the MCE initialization message is as follows: The MCE actively initiates an initialization message, and indicates the initial radio resource status information to the EPC through an initialization message (the dotted arrow indicates the cancellation in FIG. 3)
  • Step 302 The EPC determines which services are multiplexed according to the service characteristics, and determines the AMBR of the multiplexed service according to the initial radio resource status information.
  • Step 303 The EPC sends an EPC session control request message to the MCE, where the message carries the AMBR determined in step 302.
  • Step 304 After receiving the EPC session control request message, the MCE allocates radio resources for the service, determines the air interface transmission format, and combines the information with the received EPC session control request message to form a new MCE session control request message to the eNB. .
  • the eNB sends an MCE Session Control Response message to the MCE.
  • Step 305 The MCE sends an EPC control response message to the EPC, where the message carries the radio resource status information after the service is established.
  • the second eMBMS session control process is as follows.
  • Step 306 the EPC feeds back the wireless resources according to the MCE during the last eMBMS session control process.
  • the source status information determines whether the service in the current eMBMS session control process can be initiated; if yes, steps 307-310 are performed, and if no, step 307' is performed.
  • Step 307 The EPC determines the AMBR of the multiplexed service according to the wireless resource status information that the MCE feeds back during the last eMBMS session control process.
  • Step 308 The EPC sends an EPC session control request message to the MCE, where the message carries the AMBR determined in step 307.
  • Step 309 After receiving the EPC session control request message, the MCE allocates radio resources for the service, determines the air interface transmission format, and then sends the MCE session control request message to the eNB in combination with the received EPC session control request message. . The eNB sends an MCE Session Control Response message to the MCE.
  • Step 310 The MCE sends an EPC control response message to the EPC, where the message carries the radio resource status information after the service is established.
  • Step 307 ' EPC attempts to release the low priority service or reject the establishment of this service.
  • the EPC first determines whether the remaining services can be established after releasing the low-priority service in the current eMBMS session control process. If yes, the EPC releases the low-priority service, and according to the MCE in the last eMBMS The radio resource status information fed back during the session control process determines the AMBR of the remaining service. Otherwise, the EPC directly rejects the establishment of the new service and ends the process.
  • the radio resource status information transmitted by the MCE to the EPC is the remaining available radio resource information.
  • the radio resource information may specifically be a wireless subframe or the like.
  • the MCE determines the AMBR of the multiplexed service according to the state of the radio resource, and feeds back the determined AMBR and the radio resource state information after the establishment of the service to the EPC in the EPC session control response message; Control the rate of the corresponding multiplexing service.
  • 4 is a flow chart of the MCE determining the multiplexing service and implementing the eMBMS according to an embodiment of the present invention. As shown in Figure 4, the following steps are included:
  • Step 401 The EPC sends an EPC Session Control Request message to the MCE to initiate an eMBMS service.
  • Step 402 The MCE determines the multiplexing mode according to the service characteristics.
  • Step 403 The MCE determines whether the service in the eMBMS session control process can be initiated according to the radio resource status, if yes, steps 404 to 407 are performed, otherwise step 404 ' is performed.
  • Step 404 The MCE determines the AMBR of the multiplexing service according to the state of the radio resource.
  • Step 405 The MCE allocates a radio resource for the multiplex service, and sends an MCE session control request message to the eNB, and then receives an MCE session control response message sent by the eNB.
  • Step 406 The MCE feeds back the determined AMBR and the radio resource status information after the establishment of the service to the EPC through the EPC session control response message.
  • Step 407 The EPC controls the rate of the multiplexing service according to the received AMBR.
  • Step 404 ' the MCE releases the low priority service or rejects the establishment of the service.
  • the MCE first determines whether the remaining service can be established after releasing the low-priority service in the current eMBMS session control process. If yes, the MCE releases the low-priority service, and determines according to the radio resource status information. The AMBR of the remaining services, and the subsequent session process is performed. Otherwise, the MCE directly rejects the establishment of the new service and ends the process.
  • the session flow of each eMBMS service is as shown in FIG. 4.
  • composition of the EPC and MCE in the present invention is given next.
  • FIG. 5 is a structural diagram of an EPC according to an embodiment of the present invention. As shown in FIG. 5, the EPC includes: an obtaining unit 501 and a control unit 502, wherein:
  • the obtaining unit 501 is configured to receive radio resource status information from the multi-cell I multicast coordination entity MCE, and send the information to the control unit 502.
  • the control unit 502 is configured to perform corresponding on the eMBMS according to the received radio resource status information. Control.
  • the obtaining unit 501 is used for the first time.
  • the initial radio resource status information is obtained from the MCE by configuring or utilizing the initialization message of the MCE, and the initial radio resource status information is sent to the control unit 502; for each eMBMS session control process, Obtaining the radio resource status information after the establishment of the current service in the EPC session control response message fed back by the MCE, and forwarding the information to the control unit 502;
  • the control unit 502 is configured to determine, according to the initial radio resource status information sent by the obtaining unit 501, the total maximum bit rate AMBR of the multiplexing service during the first eMBMS session control process, for the first eMBMS session control process. During each current eMBMS session control process initiated, the AMBR of the multiplexed service is determined according to the radio resource status information sent by the obtaining unit 501 in the last eMBMS session control process.
  • the control unit 502 determines whether the service in the current eMBMS session control process can be initiated according to the radio resource status information fed back by the acquiring unit in the last eMBMS session control process; if yes, according to the obtaining unit, the last time
  • the radio resource status information that is fed back during the eMBMS session control process determines the AMBR of the multiplexed service; if not, it determines whether the remaining service can be established after releasing the low priority service in the current eMBMS session control process, and the release is low.
  • the obtaining unit 501 is configured to obtain the AMBR and the current time from the EPC session control response message fed back by the MCE in each eMBMS session control process.
  • the radio resource status information after the service is established and forwarded to the control unit.
  • the control unit 502 is configured to control a rate of the corresponding multiplexing service according to the AMBR sent by the obtaining unit.
  • the MCE in the embodiment of the present invention includes: a notification module, configured to send radio resource status information to the evolved packet core network EPC, so that the EPC performs corresponding control on the eMBMS according to the radio resource status information.
  • the notification module is used for the first eMBMS session During the control, the initial radio resource status information is sent to the EPC through the initialization message, so that the EPC determines the total maximum bit rate AMBR of the multiplexing service in the first eMBMS session control process according to the initial radio resource status information; used in each eMBMS During the session control process, the radio resource status information after the current service is established in the EPC session control response message is sent to the EPC, so that the EPC is in the process of controlling each current eMBMS session initiated after the first eMBMS session control process, according to the last time. The radio resource status information received during the eMBMS session control process determines the AMBR of the multiplexed service.
  • the notification module is configured to send the AMBR of the current service and the current service establishment to the EPC through the EPC session control response message in each eMBMS session control process.
  • the subsequent radio resource status information causes the EPC to control the rate of the corresponding multiplexing service according to the AMBR.
  • the EPC of the present invention acquires radio resource status information from the MCE, and performs corresponding control on the eMBMS according to the acquired radio resource status information, so that the EPC is in the eMBMS service process.
  • the current radio resource status can be known, and the eMBMS can be correspondingly controlled according to the known radio resource status, thereby optimizing the utilization of radio resources, reducing the unnecessary signaling process failure and avoiding unnecessary packet loss.

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

Abstract

L'invention concerne un procédé amélioré de mise en œuvre de services évolués de diffusion multimédia/multidiffusion (evolved Multimedia Broadcast Multicast Services, eMBMS) comportant les étapes suivantes : un cœur de réseau évolué par paquets (Evolved Packet Core, EPC) reçoit des informations d'état de ressources radioélectriques provenant d'une Entité de coordination multi-cellules / de multidiffusion (Multi-cell/multicast Coordination Entity, MCE) ; l'EPC effectue une commande correspondante de l'eMBMS en fonction des informations reçues sur l'état des ressources radioélectriques. L'invention concerne également un dispositif amélioré de mise en œuvre de l'eMBMS, comprenant un EPC et une MCE. La solution technique est capable d'optimiser l'usage des ressources radioélectriques de l'eMBMS, de réduire les échecs injustifiés des processus de signalisation et d'éviter les pertes de paquets injustifiées.
PCT/CN2010/001529 2009-10-19 2010-09-29 Procédé amélioré de mise en œuvre et dispositif associé pour services évolués de diffusion multimédia/multidiffusion WO2011047532A1 (fr)

Applications Claiming Priority (2)

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CN200910177925.2 2009-10-19
CN2009101779252A CN101692718B (zh) 2009-10-19 2009-10-19 改进的演进的多媒体广播组播业务实现方法和设备

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CN101692718B (zh) * 2009-10-19 2012-11-14 新邮通信设备有限公司 改进的演进的多媒体广播组播业务实现方法和设备
CN102291679B (zh) * 2010-06-18 2013-09-25 电信科学技术研究院 一种mbms承载释放通知的方法和设备
CN102740234B (zh) * 2011-04-12 2017-11-07 中兴通讯股份有限公司 一种mbms挂起方法、系统及mce

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WO2004073256A1 (fr) * 2003-02-12 2004-08-26 Samsung Electronics Co., Ltd. Procede pour gerer un service d'appel de personnes servant a appeler des equipements utilisateur dans un service de diffusion / de diffusion selective de multimedia
CN101370157B (zh) * 2007-08-15 2012-09-19 上海贝尔股份有限公司 利用AMBR进行统计复用的e-MBMS系统及其方法

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CN1984454A (zh) * 2006-06-16 2007-06-20 华为技术有限公司 一种寻呼控制的方法、系统及设备
CN101400017A (zh) * 2007-09-29 2009-04-01 北京三星通信技术研究有限公司 支持进化的广播组播业务数据连续接收的方法
CN101692718A (zh) * 2009-10-19 2010-04-07 新邮通信设备有限公司 改进的演进的多媒体广播组播业务实现方法和设备

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