WO2010081383A1 - Procédé et appareil pour générer une signalisation d'indication de mise à jour d'une signalisation de commande de service de diffusion/multidiffusion multimédia - Google Patents

Procédé et appareil pour générer une signalisation d'indication de mise à jour d'une signalisation de commande de service de diffusion/multidiffusion multimédia Download PDF

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Publication number
WO2010081383A1
WO2010081383A1 PCT/CN2009/076291 CN2009076291W WO2010081383A1 WO 2010081383 A1 WO2010081383 A1 WO 2010081383A1 CN 2009076291 W CN2009076291 W CN 2009076291W WO 2010081383 A1 WO2010081383 A1 WO 2010081383A1
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Prior art keywords
signaling
control signaling
mbms
mbms control
updated
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PCT/CN2009/076291
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English (en)
Chinese (zh)
Inventor
苟伟
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中共通珮股份有限公司
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Publication of WO2010081383A1 publication Critical patent/WO2010081383A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast

Definitions

  • the present invention relates to a method and apparatus for generating update indication signaling of Multimedia Broadcast Multicast Service (MBMS) control signaling.
  • MBMS Multimedia Broadcast Multicast Service
  • MBMS 3rd Generation Partnership Project
  • 3GPP proposes MBMS, which is a technology for transmitting data from one data source to multiple targets, and realizes the network.
  • the sharing of resources including the core network and the access network
  • improves the utilization of network resources especially air interface resources.
  • MBMS defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile
  • the trend of data development provides a better business prospect for the development of 3G.
  • MBMS is determined to be semi-static according to the characteristics of MBMS, mainly because the MBMS service volume is basically fixed, and the resource location and size allocated to the MBMS are basically the same.
  • the MBMS area remains basically unchanged, and the number of MBMS services in the area is basically unchanged.
  • the scheduling information of the MBMS on the Broadcast Control Channel (BCCH) is changed slowly, and the MBMS control signaling is The update is slower.
  • the design of the Multicast Control Channel is divided into a Primary Multicast Control Channel (Primary MCCH, P-MCCH for short) and a Secondary Multicast Control Channel (Secondary MCCH, S-referred to as S-. MCCH), the signaling on these control channels includes scheduling configuration signaling and P-MCCH signaling of P-MCCH transmitted in multi-cell mode, scheduling configuration signaling of P-MCCH transmitted in multi-cell mode, and S-MCCH Signaling, S-MCCH signaling includes MBMS control signaling of MBMS service data packets.
  • the terminal has to receive the MBMS data of its own interest, and must receive a series of MBMS control signaling to know the resource location of the MBMS data.
  • the change of these MBMS control signaling is slow, that is, the data packet sent this time and the last transmitted data packet use the same MBMS control signaling, so that the MBMS control signaling may not undergo any update for a long time. If the terminal receives the MBMS control signaling every time, frequent reception wastes the power of the terminal.
  • the technical problem to be solved by the present invention is to provide a method and a device for generating update indication signaling of MBMS control signaling, which can reduce unnecessary transmission times of MBMS control signaling, and can further generate MBMS control signaling by combining current LTE standards. Reasonable.
  • the update indication signaling of the MBMS control signaling can be introduced to indicate to the terminal whether the MBMS control signaling is updated.
  • the present invention uses the Multi-cell/Multicast Coordination Entity (MCE) in LTE or an equivalent entity in other systems to generate the update indication signaling to reduce MBMS control signaling. The number of transmissions necessary.
  • MCE Multi-cell/Multicast Coordination Entity
  • the present invention provides a method for generating an update indication signaling of multimedia broadcast and multicast service control signaling, including:
  • an update indication signaling for indicating whether MBMS control signaling is updated is generated by a control plane logical entity of the MBMS.
  • the foregoing update indication signaling generating method may further include the following steps: Determining, by the logic entity, whether the MBMS control signaling needs to be updated, if an update is required, generating update indication signaling indicating that the MBMS control signaling is updated, and new MBMS control signaling; if not, generating only the indication The update indication signaling of the MBMS control signaling does not occur.
  • step of the control plane logic entity determining whether the MBMS control signaling needs to be updated includes:
  • the logic entity determines that the parameter on which the MBMS control signaling is generated has changed and the change will cause the MBMS control signaling content to change, and determines that the MBMS control signaling needs to be updated, otherwise the MBMS control signaling does not need to be updated.
  • the parameters according to the MBMS control signaling are generated by one or more of a service quality QoS of the service, a current data packet size to be transmitted, and a scheduling period.
  • step of the control plane logic entity determining whether the MBMS control signaling needs to be updated includes:
  • the control plane logic entity determines the MBMS control only according to the MBMS session start request. Whether signaling needs to be updated.
  • the foregoing update indication signaling generating method may further have the following features.
  • the multicast broadcast and multicast service area is a multicast broadcast single frequency network area in a long term evolution system, and the control plane logical entity is a multi-cell broadcast multicast coordination entity; or
  • the multicast broadcast and multicast service area is a multicast broadcast single-slot network area in a time division synchronous code division multiple access system
  • the control plane logic entity is a radio network controller
  • the present invention further provides a multi-cell broadcast multicast coordination apparatus in a long-term evolution system, the apparatus comprising a determination module, a generation module, a storage module, and a transmission module, wherein
  • the storage module is configured to store parameters for generating one or more multimedia broadcast and multicast service MBMS control signaling
  • the determining module is configured to determine whether the MBMS control signaling needs to be updated, and transmit the determination result to the generating module;
  • the generating module is configured to: when receiving the determination result that the MBMS control signaling is not required to be updated, generate only update indication signaling indicating that the MBMS control signaling does not occur and transmit the update indication signaling to the sending module; And when the indication of the MBMS control signaling is updated, generating the new MBMS control signaling and update indication signaling indicating that the MBMS control signaling is updated, and transmitting the update indication signaling to the sending module;
  • the sending module is configured to send, by the generating module, update indication signaling that indicates that the MBMS control signaling is not updated, or update indication signaling that is generated by the generating module and that is updated by the MBMS control signaling, and New MBMS control signaling is sent to the base station.
  • the multi-cell broadcast multicast coordination device may further have the following features.
  • the determining module is configured to determine whether the MBMS control signaling needs to be updated by:
  • the multi-cell broadcast multicast coordination device may further have the following features.
  • the parameters on which the MBMS control signaling is generated include one or more of a service quality QoS of the service, a current data packet size to be transmitted, and a scheduling period.
  • the determining module is further configured to determine whether the MBMS control signaling needs to be updated by:
  • the control plane logical entity determines whether the MBMS control signaling needs to be updated only according to the MBMS session start request.
  • the invention generates update indication signaling of the MBMS control signaling according to whether the MBMS control signaling changes, and through detailed comparative analysis, gives a node that generates the update indication signaling to the system with the greatest benefit, thereby reducing the MBMS. Controlling the unnecessary number of transmissions of signaling, combined with the current LTE standard, can make the generation of MBMS control signaling more reasonable.
  • 1 is a schematic diagram of a location of an MCE node in a prior art LTE
  • 2 is a flowchart of a complete application of an update indication signaling of MBMS control signaling in a system according to an embodiment of the present invention
  • FIG. 3 is a flowchart of generating update indication signaling of MBMS control signaling according to an embodiment of the present invention.
  • This embodiment provides a method for generating update indication signaling of MBMS control signaling in a multicast broadcast and multicast service area.
  • a further problem to be solved is that the update of the MBMS control signaling indicates at which node the signaling is generated? There are multiple related nodes in the system. Which node generates this MBMS control channel signaling update indication signaling will bring greater benefits to the system?
  • Multicast multicast broadcast single frequency network
  • the node that is considered to generate the update indication signaling of the MBMS control signaling may be a multi-cell/multicast coordination entity (MCE), a base station, After the MBMS gateway and other newly added nodes, the MBMS gateway and other new nodes can be excluded after preliminary comparison.
  • MCE multi-cell/multicast coordination entity
  • the MBMS gateway can generate the update indication signaling of the MBMS control signaling, but it belongs to the core network side.
  • the core network side preferably does not participate in the generation of the resource scheduling configuration signaling on the wireless side, so Will not participate in generating its update indication signaling, so the MBMS gateway is not suitable for generating update indication signaling for MBMS control signaling;
  • the system can also add a new node to generate update indication signaling for MBMS control signaling, but this method will encounter great resistance in the standard advancement process, because when the system has equivalent functions, When an existing node can perform this function well, other similar new nodes are generally not introduced.
  • the update indication signaling for MBMS control signaling is generated by each base station and analyzed by the MCE as follows:
  • the MCE belongs to the logical entity of the MBMS control plane and takes up the MBMS control signaling of the core network sent by the MBMS gateway. , down and participate in MBMS within the MBSFN area All base stations sent are connected.
  • the actual function is to coordinate the cooperation of multiple base stations in a certain area in the MBSFN mode, and to uniformly generate the scheduling configuration information of the MBMS for the relevant base stations in the MBSFN area.
  • the signaling flow of the current MBMS control plane in LTE is shown by the thick line in FIG.
  • the MCE is only responsible for generating the MBMS control signaling, regardless of whether the control signaling generated this time and the control signaling generated last time are consistent, thus, For MBMS control signaling, the MCE generates a large amount of repeated MBMS control signaling and sends it to the relevant base station. After receiving and parsing the MBMS control signaling, each base station passes the last MBMS control stored locally with the base station. After the signaling is compared, the update indication signaling of the MBMS control signaling is generated and sent to the terminal.
  • the MCE manages a large number of base stations in a large range, the original load is relatively large, and the MBMS control signaling is generated by the relevant base station.
  • the advantage of the update indication signaling is that the MCE function is simple, and the load of the MCE is reduced. If the update indication signaling of the MBMS control signaling is generated by the MCE in the MBSFN area, it is determined whether new MBMS control signaling needs to be generated.
  • M The CE only generates the update indication signaling of the MBMS control signaling (the update indication signaling of the MBMS control signaling is relatively small), and sends the information to the relevant base station, and the base station determines, according to the update indication signaling, whether it needs to receive the new sent by the MCE.
  • the MBMS control signaling if the update indication signaling indicates that no update has occurred, the base station invokes the last stored MBMS control signaling locally, otherwise, receives the new MBMS control signaling sent by the MCE.
  • the MCE can be prevented from generating the MBMS control signaling that is not updated again, thereby reducing the transmission of the MBMS control signaling, and since the MCE is uniformly processed in each area than the respective base stations The reliability of the separate processing is high, and the reliability of the signaling processing can also be improved. Therefore, in this embodiment, the MCE is used to generate the update indication signaling.
  • the MCE determines the scheduling period of each MBMS according to the media type of all MBMSs in the MBSFN area, the average data rate, and the physical resources of the multimedia broadcast multicast allocated by the system.
  • the media types include text, audio, video, graphics, and binary data, etc., because the same media type also has a large difference in average data rates (such as normal audio, high quality sound) Frequency, stereo), so the configuration period and the number and location of transmissions on physical resources within an MBMS modification period are further determined based on the average data rate of the service.
  • the MCE further combines the quality of service (QoS) of the service with the size of the data packet to be transmitted to uniformly configure MBMS control signaling for each data packet of each MBMS, and the MBMS control signaling includes at least each base station sending Time-frequency resource information (transmission time and transmission frequency) used by each MBMS data packet, modulation information of each data packet, and coding rate information of each data packet.
  • the MCE uniformly configures the MBMS control signaling to ensure that in the MBMS area, the physical signals transmitted by each MBMS packet on the antenna of each base station are exactly the same every moment, so that each base station is always present.
  • the transmitted electromagnetic wave signals used to carry the same MBMS data can be naturally superimposed in the air to increase the signal power.
  • Step 110 The MCE determines whether it is the first time to configure the MBMS control signaling for the MBMS data packet, if yes, go to step 120, if no, go to step 130;
  • Step 120 The MCE configures MBMS control signaling for the current to-be-transmitted data packet of the MBMS in the area;
  • Step 130 The MCE determines whether the MBMS control signaling needs to be updated, if yes, go to step 140, if no, go to step 150;
  • the MCE determines whether the parameter according to the MBMS control signaling configured by the data packet changes and the change will cause the MBMS control signaling content to change. If yes, it is determined that the MBMS control signaling needs to be updated, otherwise There is no need to update the MBMS control signaling.
  • These parameters include one or more of the QoS of the service, the size of the data packet to be transmitted, and the scheduling period. Further, there are: MBMS SESSION START REQUEST (MBMS Session Start Request), MBMS SESSION STOP REQUEST (MBMS Session Stop Request) , MBMS SCHEDULING INFORMATION, M2 SETUP RESPONSE.
  • the update indication signaling of the MBMS control signaling indicates the update of the MBMS control signaling caused by any factor, if any of the above factors is updated, it is determined as The MBMS control signaling needs to be updated; if the update indication signaling of the MBMS control signaling only indicates the update caused by the start of the MBMS service session, then the update indication signaling determines the MBMS control signal only according to whether the MBMS SESSION START REQUEST needs to be updated. Whether the update is needed and the corresponding update indication signaling is generated.
  • the MCE determines that the MBMS control signaling needs to be updated by whether the above factors occur, the new MBMS control signaling is generated, and the update indication signaling indicating that the MBMS control signaling is updated, otherwise the generated MBMS control signaling is not updated.
  • the update indicates signaling and uses the last MBMS control signaling.
  • the MCE After determining the scheduling period in the same manner, the MCE combines the QoS of the MBMS with the size of the data packet to be transmitted in the MCE to become the MBMS control signaling of the MBMS packet configuration, and then the MBMS control signaling generated this time is The MBMS control signaling configured for the MBMS data packet is compared to determine whether the MBMS control signaling is updated. If an update occurs, an update indication signal is generated for the control signaling update of the MBMS data packet to be sent. Otherwise, an update indication signaling indicating that the MBMS control signaling has not been updated is generated.
  • Step 140 The MCE generates a new MBMS control signaling for the current to-be-transmitted data packet of the MBMS, and generates update indication signaling indicating that the MBMS control signaling is updated, and sends the two to the related base station.
  • Step 150 After receiving the new MBMS control signaling and the update indication signaling, the base station parses, and reassembles the signaling according to the format agreed by the terminal, and performs step 170;
  • Step 160 For the current to-be-transmitted data packet of the MBMS, the MCE does not generate new MBMS control signaling, only generates update indication signaling indicating that the MBMS control signaling does not occur, and sends the update indication signaling to the relevant base station. ;
  • Step 170 After receiving the update indication signaling, the base station performs parsing, and reassembles the last received MBMS control signaling and the current update indication signaling according to a format agreed by the terminal;
  • Step 180 The base station sends the reassembly signaling to the terminal to complete the application.
  • the base station receives the MCE configured for each MBMS data packet to be sent this time.
  • the MBMS data packet to be transmitted is reorganized into MBMS control signaling and/or the MBMS according to a format recognizable by the terminal.
  • the update signaling of the control signaling indicates signaling.
  • the method includes: parsing the updated MBMS control signaling sent by the MCE, and reassembling the data format that can be recognized by the terminal; when the update indication signaling of the MBMS control signaling sent by the MCE indicates that no update occurs, the application can be directly used.
  • the MBMS control signaling of the last transmitted data packet; and the update indication signaling of the MBMS control signaling that the corresponding terminal can listen to, according to the format and requirements of the update indication signaling of the MBMS control signaling monitored by the terminal .
  • the base station may parse the control signaling format terminal formed by the MCE ( That is to say, the MCE and the terminal have the same protocol stack, and then the base station directly forwards and receives the signaling to the terminal, which can save the process of parsing and reorganizing the base station.
  • the update indication signaling of the MBMS control signaling monitored by the terminal refers to, firstly, a data format that the terminal can recognize, and secondly, a signaling that is sent on the resource that the system monitors the update indication signaling of the MBMS control signaling.
  • the base station transmits the MBMS control signaling of the MBMS data packet to be transmitted, which is finally formed, on the specified resource, and transmits the update indication signaling of the MBMS control signaling of the MBMS data packet to be transmitted on the specified resource.
  • the above operation processing is performed on each data packet of the MBMS to be transmitted this time.
  • the embodiment further provides an entity for generating update indication signaling of the MBMS control signaling, where the entity is a logical entity of the MBMS control plane, and upwardly supports the MBMS gateway, and connects all the base stations participating in the MBMS transmission downward.
  • the entity is an MCE, and the entity includes a determining module, a generating module, a sending module, and a storage module.
  • the judging module is configured to determine whether it is necessary to update the MBMS control signaling configured for the MBMS data packet, and determine the result to the generating module. Specifically, it may be determined whether the parameter according to the MBMS control signaling is changed, and the change will cause the MBMS control signaling content to change. If yes, it is determined that the MBMS control signaling needs to be updated, otherwise the MBMS does not need to be updated. Control signaling.
  • the generating module is configured to, when receiving an indication that the MBMS control signaling is not required to be updated, generate update indication signaling indicating that the MBMS control signaling has not been updated and transmit the same to the transmitting module; when receiving an indication that the MBMS control signaling needs to be updated And generating new MBMS control signaling configured for the data packet and update indication signaling indicating that the MBMS control signaling is updated and transmitting to the sending module.
  • the sending module is configured to send the generated update indication signaling, or the update indication signaling, and the MBMS control signaling configured for the MBMS data packet to the relevant base station;
  • the storage module is configured to store the parameters according to the MBMS control signaling configured for the data packet, including the QoS of the service, the data packet size to be transmitted, and the scheduling period.
  • the invention has the advantages of realizing unified processing of the MCE, reducing the amount of data transmitted by the MCE to the terminal, avoiding the respective processing of the relevant base stations, and reducing the possibility of error in signaling transmission and processing.
  • the MCE may perform one or more of other control signaling, such as scheduling configuration signaling of the P-MCCH sent in the multi-cell mode and P-MCCH signaling sent by the multi-cell mode.
  • the scheduling configuration signaling of the S-MCCH transmitted in the multi-cell mode may also be processed in the same manner as the control signaling configured for the data packet, that is, it is first determined whether the control signaling needs to be updated, and if necessary, the MCE Corresponding control signaling and update indication signaling indicating that the control signaling is updated are generated. If not, the MCE only generates update indication signaling indicating that the control signaling has not been updated.
  • the MCE then sends the generated update indication signaling, or the generated update indication signaling and control signaling, to the relevant base station.
  • the update indication signaling of the control signaling is generated on the MCE, and the effect is the same as the MBMS control signaling configured to be configured as MBMS data on the MCE, and details are not described herein again.
  • the present invention Compared with the prior art, the present invention generates update indication signaling of MBMS control signaling according to whether the MBMS control signaling changes, and gives a detailed indication and analysis to generate the update indication signal that can maximize the benefit to the system.
  • the nodes of the order reduce the unnecessary number of transmissions of the MBMS control signaling, and the generation of the MBMS control signaling can be made more reasonable in combination with the current LTE standard.

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

Abstract

La présente invention porte sur un procédé et un appareil pour générer une signalisation d'indication de mise à jour d'une signalisation de commande de service de diffusion/multidiffusion multimédia (MBMS). Le procédé comprend le fait que, dans une zone de service de diffusion/multidiffusion multimédia (MBMS), une entité logique de plan de commande de MBMS génère une signalisation d'indication de mise à jour pour indiquer si la signalisation de commande MBMS a été mise à jour ou non. L'appareil comprend un module de détermination, un module de génération, un module de stockage et un module de transmission. La présente invention peut réduire des temps de transmission non nécessaires de la signalisation de commande MBMS. Une combinaison de l'invention et des normes d'évolution à long terme (LTE) courantes rend plus raisonnable la génération de la signalisation de commande MBMS.
PCT/CN2009/076291 2009-01-13 2009-12-30 Procédé et appareil pour générer une signalisation d'indication de mise à jour d'une signalisation de commande de service de diffusion/multidiffusion multimédia WO2010081383A1 (fr)

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CN200910000446.3A CN101778340A (zh) 2009-01-13 2009-01-13 一种mbms控制信令的更新指示信令的产生方法及装置

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CN101909242B (zh) * 2009-06-05 2012-11-28 电信科学技术研究院 一种通知信息变化和获取信息的方法、系统及装置
KR102148180B1 (ko) * 2014-02-28 2020-08-26 삼성전자주식회사 디지털 방송 시스템에서 시그널링 정보 송/수신 방법 및 장치
CN107370716B (zh) * 2016-05-12 2022-04-19 中兴通讯股份有限公司 组播信息的处理方法及装置
CN108282318B (zh) * 2017-01-06 2020-09-22 维沃移动通信有限公司 一种传输资源的配置方法、基站及终端

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