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WO2008113262A1 - Scheduling method directed to mbms, scheduling device and base station including scheduling device - Google Patents

Scheduling method directed to mbms, scheduling device and base station including scheduling device Download PDF

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Publication number
WO2008113262A1
WO2008113262A1 PCT/CN2008/000554 CN2008000554W WO2008113262A1 WO 2008113262 A1 WO2008113262 A1 WO 2008113262A1 CN 2008000554 W CN2008000554 W CN 2008000554W WO 2008113262 A1 WO2008113262 A1 WO 2008113262A1
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WIPO (PCT)
Prior art keywords
information
sfn
service
scheduling
level
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2008/000554
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English (en)
French (fr)
Inventor
Yu Chen
He Wang
Pingping Xing
Yonggang Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Alcatel Lucent SAS
Original Assignee
Alcatel Lucent Shanghai Bell Co Ltd
Alcatel Lucent SAS
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Publication date
Application filed by Alcatel Lucent Shanghai Bell Co Ltd, Alcatel Lucent SAS filed Critical Alcatel Lucent Shanghai Bell Co Ltd
Priority to JP2009553891A priority Critical patent/JP5596352B2/ja
Priority to EP08715007.4A priority patent/EP2134103B1/en
Priority to KR1020097021895A priority patent/KR101404432B1/ko
Priority to US12/532,287 priority patent/US8467328B2/en
Publication of WO2008113262A1 publication Critical patent/WO2008113262A1/zh
Anticipated expiration legal-status Critical
Priority to US13/896,771 priority patent/US9451588B2/en
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • Scheduling method for MBMS, scheduling device, and base station including the scheduling device
  • the present invention relates to the field of mobile communications, and in particular to a multimedia broadcast multicast service.
  • MBMS MBMS scheduling method, scheduling device, and base station including the scheduling device, wherein a single frequency network (SFN) combining policy is applied to the service specific information and service scheduling information, and an MBMS Control Channel (MCCH) is formed, and the data is Channels are multiplexed together, thereby increasing system robustness.
  • SFN single frequency network
  • MCCH MBMS Control Channel
  • the 3GPP (3rd Generation Partnership Project) launched the Long Term Evolution Research Project (LTE) in 2005, hoping to support the growing needs of operators and users with higher data throughput and better network performance.
  • LTE Long Term Evolution Research Project
  • Multimedia Broadcast/Multicast Service is a service introduced by 3GPP Rel6, which refers to a point-to-multipoint service in which a data source sends data to multiple users, thereby realizing resource sharing of the network (including core network and access network).
  • the MBMS service can realize low-rate message-like multicast and broadcast, and can also realize multicast and broadcast of higher-rate multimedia services by using a common transport channel and a public radio bearer, for example, Mobile TV.
  • control information that is, MBMS-like information
  • SFN Single Frequency Network
  • multiplexing of control channels and data channels is not provided in the prior art. It should be noted that multiplexing the control channel with the data channel can simplify the management complexity of the SFN domain, so that the data channel and the control channel can share the same set of resource allocation schemes and multi-cell coordination schemes.
  • an object of the present invention is to provide a scheduling method for a Multimedia Broadcast Multicast Service (MBMS), a scheduling device, and a base station including the scheduling device,
  • MBMS Multimedia Broadcast Multicast Service
  • the single-frequency network SF merge policy is applied to the service-specific information and the service scheduling information.
  • the MBMS Control Channel (MCCH) is multiplexed with the data channel, thereby improving system robustness.
  • a scheduling method for a multimedia broadcast multicast service MBMS including: setting service specific information and service scheduling information separately from MBMS service data to form an MBMS control channel MCCH control message; And transmitting, to the receiving end, the MCCH control message and the MBMS service data, where the service specific information and the service scheduling information are applied by a single frequency network SFN merging policy.
  • the SFN merge policy includes SFN level merge, SFN domain level merge, and SFN domain cross-level merge.
  • the MCCH control message further includes general information, where the general information is SFN level merging.
  • the general information includes radio bearer RB configuration information, frequency information, timer information, and trigger information.
  • the MCCH control message further includes an SFN domain ID, and the SFN domain ID is SFN domain cross-level merging.
  • the MCCH control message further includes cell-specific information, and the cell-specific information includes a service list.
  • the service list is SFN domain cross-level mergeable.
  • the MCCH control message further includes counting information, and for the counting of the enable/disable type, the counting information is mergeable at the cell level.
  • the service specific information and the service scheduling information of the SFN domain cross-level combination are additionally applied before all the MBMS service data in the scheduling period.
  • the service specific information and the service scheduling information to which the SFN domain level combination is applied are respectively added.
  • the MCCH control message is not based on reservation.
  • a scheduling apparatus for a multimedia broadcast multicast service MBMS comprising: an MBMS control channel MCCH control message forming apparatus, and separately setting service specific information and service scheduling information separately from MBMS service data to form MCCH control And a sending device, configured to send the MCCH control message and the MBMS service data to a receiving end, where the service specific information and The service scheduling information is applied to the single frequency network SFN merge policy.
  • a base station including the above-described scheduling device is also proposed.
  • control channel can be made to make maximum use of the SFN operation, thereby increasing the capacity and reliability of the control channel.
  • the mobile station (UE) can shorten the time to read the control channel, thereby extending battery life.
  • Figure 1 is a schematic diagram showing the need for cross-level merging of SFN domains in the case where intersections occur in the SFN domain;
  • FIG. 2 is a schematic diagram showing application of SFN domain cross-level merging to service specific information and service scheduling information in an MCCH control message according to the present invention
  • FIG. 3 is a diagram showing application of SFN domain level merging to service specific information and service scheduling information in an MCCH Control message in accordance with the present invention
  • FIG. 4 is a flow chart showing a scheduling method for MBMS traffic according to the present invention.
  • FIG. 5 is a block diagram showing a scheduling device for MBMS traffic according to the present invention. detailed description
  • MCCH MBMS Control Channel
  • SFN operation or repetition (as used in Release 6 of the 3GPP specification) is an efficient way to ensure cell edge performance of signaling messages.
  • this repetition i.e., low bit rate
  • the bit rate required for transmission signaling can exceed 100 kbps. Therefore, with the method of the present invention, higher transmission efficiency, that is, greater channel capacity, can be brought about.
  • the system capacity will become much larger than without SFN operation, so this Will further reduce bandwidth requirements.
  • the UE simultaneously receives the same radio channel transmitted by all base stations and performs radio frequency combining, that is, so-called SFN operation.
  • SFN operation brings the gain of multi-cell merging, which greatly increases the system capacity. Higher system capacity means that the same amount of data can be transferred with less bandwidth resources.
  • the UE In order to save battery life, the UE should be able to easily know if there is a service of interest to it. This is done periodically. Preferably, the signaling should be transmitted only in very short time slots, and the UE disconnects the receiver most of the time. From this point of view, the repeated method causes a longer repetition time. Since the SFN operation is used to transmit MBMS signaling, the system capacity is greatly increased, so that the time required to transmit the same amount of data is greatly reduced, which reduces the time required for the UE to read the information, thereby increasing battery life.
  • the composition of the MBMS Control Channel (MCCH) control message will be discussed.
  • the MCCH control message includes the following six kinds of information, respectively:
  • RB radio bearer
  • the notification information is mainly to inform the user that the service to which it is concerned has started, or the configuration has changed (including the end of the service, the release of the bearer, etc.).
  • the SFN domain is organized in units. Each SFN domain adopts the same configuration, and the ID can be simply indexed to this SFN domain.
  • Cell-specific information including some information sent only in the cell, such as single-cell service information, including service list, etc.
  • the general information includes basic radio parameters such as default RB configuration information, timer information, and trigger information. This general information is common to all cells in the SFN. Therefore, the general letter Interest can be combined at the SFN level. It should be noted that this general information will occupy a considerable part of the MCCH control message.
  • cell-specific information is not merging. It should be noted, however, that for counts of the enable/disable type, the count information is common to the cell and is therefore cell level merging.
  • the SFN merge policy includes SFN level merge, SFN domain level merge, and SFN domain cross level merge.
  • SFN level consolidation all SFN operations are included in the scope of consolidation.
  • SFN domain level merging means that only signals transmitted by cells within the SFN domain can be combined.
  • the SFN domain intersection set means that different SFN domains cover different areas, but those cells in the overlapping part have the same service data and the same control signaling, so the signals transmitted by these cells can be combined.
  • Figure 1 is a diagram for explaining the need for cross-level merging of SFN domains in the case where intersections occur in the SFN domain.
  • two or more SFN domains may overlap each other.
  • Each cell may belong to a different SFN domain, but there may be some intersections.
  • those cells of the SFN domain crossing portion as shown in Fig. 1 have the same information to be broadcast. Therefore, at this time, the service-specific information and the service scheduling information can be cross-level merged in the SFN domain. It should be noted that the SFN domain cross-level merging is transparent to the UE.
  • FIG. 2 is a diagram showing the application of SFN domain cross-level merging to service specific information and service scheduling information in an MCCH Control message in accordance with the present invention.
  • the service specific information and the service scheduling information in the MCCH control message are separately configured from the MBMS service data, wherein the service specific information and the service scheduling information are applied to the SFN domain cross-level merge.
  • the structure shown in Figure 2 makes signaling announcements easy.
  • the UE may have sufficient time to establish a Radio Bearer (RB) because the service specific information and the service scheduling information can be transmitted in sufficient time before the data transmission.
  • RB Radio Bearer
  • the MTCH (MBMS Transport Channel) channel in Figure 2 is used to transmit MBMS service data.
  • MBMS data is transmitted on the basis of SFN domain cross-level merging of service specific information and service scheduling information in an MCCH control message. Therefore, during the scheduling period, the service-specific information and service scheduling information are added to all MBMS service data (at the time) Domains) to form MCCH control messages in accordance with the present invention.
  • the specific control channel structure is shown in the figure. For the case shown in FIG. 1, if most of the SFN domains are the same, the merge gain obtained by the SFN domain cross-level combining as shown in FIG. 2 is similar to the merge gain that can be obtained by the SFN domain-level merge. In the case shown in Fig.
  • the service list (cell-specific information) is also possible to perform SFN domain cross-level merging. Because the services of different SFN intersections are the same, the service list must be the same, so they can be merged.
  • 3 is a diagram showing the application of SFN domain level merging to service specific information and service scheduling information in an MCCH Control message in accordance with the present invention.
  • the service specific information and the service scheduling information in the MCCH control message are the same.
  • the service-specific information and the service scheduling information may be merged at the SFN domain level.
  • corresponding service-specific information and service scheduling information may be respectively added before each MBMS service data, and the service-specific information and the service scheduling information are applied to the SFN domain-level merge.
  • service-specific information and service scheduling information can be transmitted on separate transport blocks (TBs), so that they can have different quality of service (QoS).
  • QoS quality of service
  • MCCH control message structure may be flawed in terms of signaling announcements.
  • the service specific information and the service scheduling information occupy only a small amount of radio resources, so that the MCCH channel and the MTCH channel (MBMS transmission channel) can be frequency division multiplexed (FDM).
  • FDM frequency division multiplexed
  • cell-specific information for single-cell services is usually not merging, but cell-specific information (for example, service list) for multi-cell services may be SFN-domain cross-level merging
  • - Counting information is usually cell-specific, for enabling/disabling (on/off) type counting, cell Public counting is also possible, at which point cell level consolidation can be performed.
  • FIG. 4 is a flow chart showing a scheduling method for MBMS services in accordance with the present invention.
  • step 401 service specific information and service scheduling information are set separately from the MBMS service data to form an MBMS Control Channel MCCH Control message. Then, in step 402, the MCCH control message and the MBMS service data are sent to the receiving end.
  • the service specific information and the service scheduling information are applied to a single frequency network (SFN) merge policy.
  • the SFN merge strategy includes SFN level merge, SFN domain level merge, and SFN domain cross-level merge. The application of the specific merge strategy is as described above.
  • FIG. 5 is a block diagram showing a scheduling device for MBMS traffic in accordance with the present invention.
  • the scheduling apparatus includes: MCCH (MBMS Control Channel) control message forming apparatus 501 and transmitting apparatus 502.
  • the MCCH control message forming means 501 sets service specific information and service scheduling information separately from the MBMS service data to form an MCCH control message.
  • the transmitting device 502 transmits the MCCH control message and the MBMS service data to the receiving end. As described above, the service specific information and the service scheduling information are applied to the single frequency network SFN combining policy.
  • the scheduling device may be included in a transmitting end of the mobile communication system, which is usually a base station.
  • the receiving end as described above generally refers to a mobile station.
  • control channel can be made to make maximum use of the SFN operation, thereby increasing the capacity and reliability of the control channel.
  • the mobile station (UE) can shorten the time to read the control channel, thereby extending battery life.

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

Description

针对 MBMS的调度方法、 调度设备和包括该调度设备的基站
技术领域
本发明涉及移动通信领域, 具体地, 涉及一种针对多媒体广播组播业务
( MBMS ) 的调度方法、 调度设备和包括该调度设备的基站, 其中对所述服务专 用信息和服务调度信息应用了单频网络 (SFN) 合并策略并形成 MBMS控制信道 (MCCH), 并且与数据信道复用在一起, 从而提高了系统鲁棒性。 背景技术
3GPP (第三代合作伙伴计划) 在 2005年启动了长期演进研究项目 (LTE), 希望以更高的数据吞吐量和更好的网络性能, 为运营商和用户不断增长的需求提 供支持。
多媒体广播 /组播业务(MBMS )是 3GPP Rel6引入的一项业务, 是指一个数 据源向多个用户发送数据的点到多点业务,从而实现网络(包括核心网和接入网) 资源共享, 以尽可能少的资源实现对尽可能多的、 具有相同需求的多媒体用户的 服务。 在无线接入网, MBMS业务通过使用公共传输信道和公共无线承载, 既能 实现纯文本低速率的消息类组播和广播, 也能实现较高速率的多媒体业务的组播 和广播, 例如, 手机电视。
目前, 关于 EMBMS (演进的 MBMS ) 的各项研究正在进行中。
在现有技术中, 最重要的控制信息, 即, MBMS—般信息是不可合并的, 导致了极差的鲁棒性。 实际上, 一些信息, 例如服务专用信息和服务调度信息等 是可应用 SFN (单频网络) 合并策略的, 但是这在现有技术中并未得到反映, 造 成了较低的效率。 此外, 在现有技术中未提供控制信道与数据信道的复用。 需要 指出的是, 控制信道与数据信道进行复用可以简化 SFN域在管理上的复杂度, 使 得数据信道和控制信道可以共用同一套资源分配方案和多小区协调方案。 发明内容
为了克服以上缺陷提出了本发明。 因此, 本发明的目的是提出一种针对多 媒体广播组播业务 (MBMS ) 的调度方法、 调度设备和包括该调度设备的基站, 其中对所述服务专用信息和服务调度信息应用了单频网络 SF 合并.策
MBMS控制信道 (MCCH ) , 并且与数据信道复用在一起,. 从而提高了系统鲁棒 性。
为了实现上述目的, 根据本发明, 提出了一种针对多媒体广播组播业务 MBMS的调度方法, 包括: 与 MBMS业务数据分离地设置服务专用信息和服务调 度信息, 以形成 MBMS控制信道 MCCH控制消息; 以及向接收端发送所述 MCCH 控制消息和所述 MBMS业务数据, 其中, 所述服务专用信息和服务调度信息被应 用了单频网络 SFN合并策略。
优选地, 所述 SFN合并策略包括 SFN级合并、 SFN域级合并、 以及 SFN域交 叉级合并。
优选地, 所述 MCCH控制消息还包括一般信息, 所述一般信息是可进行 SFN 级合并的。
优选地, 所述一般信息包括无线承载 RB配置信息、 频率信息、 计时器信息 和触发器信息。
优选地, 所述 MCCH控制消息还包括 SFN域 ID, 所述 SFN域 ID是可进行 SFN 域交叉级合并的。
优选地,所述 MCCH控制消息还包括小区专用信息,所述小区专用信息包括 服务列表。
优选地, 所述服务列表是可进行 SFN域交叉级合并的。
优选地, 所述 MCCH控制消息还包括计数信息, 对于启用 /禁用类型的计数, 所述计数信息是可迸行小区级合并的。
优选地, 在调度周期内的所有 MBMS业务数据之前, 附加应用了 SFN域交叉 级合并的服务专用信息和服务调度信息。
优选地, 在调度周期内的各个 MBMS业务数据之前, 分别附加相应的应用 了 SFN域级合并的服务专用信息和服务调度信息。
优选地, 所述 MCCH控制消息是不基于预留的。
根据本发明, 还提出了一种针对多媒体广播组播业务 MBMS的调度设备, 包括: MBMS控制信道 MCCH控制消息形成装置, 与 MBMS业务数据分离地设置 服务专用信息和服务调度信息, 以形成 MCCH控制消息; 以及发送装置, 向接收 端发送所述 MCCH控制消息和所述 MBMS业务数据, 其中, 所述服务专用信息和 服务调度信息被应用了单频网络 SFN合并策略。
此外, 根据本发明, 还提出了一种包括上述调度设备的基站。
根据本发明, 可以使得控制信道可以最大限度地利用 SFN操作, 从而增加了 控制信道的容量和可靠性。 而移动台 (UE)可以缩短读取控制信道的时间, 从而 延长电池寿命。 附图说明
通过参考以下结合附图对所采用的优选实施例的详细描述, 本发明的上述 目的、 优点和特征将变得显而易见, 其中:
图 1是说明在 SFN域发生交叉的情况下需要进行 SFN域交叉级合并的示意 图; .
图 2是示出了根据本发明, 对 MCCH控制消息中的服务专用信息和服务调度 信息应用 SFN域交叉级合并的示意图;
图 3是示出了根据本发明, 对 MCCH控制消息中的服务专用信息和服务调度 信息应用 SFN域级合并的示意图;
图 4是示出了根据本发明的针对 MBMS业务的调度方法的流程图; 以及 图 5是示出了根据本发明的针对 MBMS业务的调度设备的方框图。 具体实施方式
为了对根据本发明的 MBMS控制信道(MCCH)的结构进行设计, 需要考虑 以下原则:
1、 在小区边缘处的性能
2、 所需带宽
3、 UE的电池节省
SFN操作或重复(如在 3GPP规范的版本 6中所使用)是一种确保信令消息的 小区边缘性能的有效方法。 然而, 该重复 (即, 低码率) 需要更多的带宽。 根据 版本 6中的 MBMS的内容, 可能同时会存在 64个并行的 MBMS业务, 于是, 传输 信令所需的比特率可以超过 100 kbps。 因此, 采用本发明的方法, 可以带来更高 的传输效率, 也就是更大的信道容量。
另一方面, 通过 SFN操作, 系统容量将会变得比无 SFN操作大得多, 于是这 将进一步降低带宽需求。在单频网络中, UE同时接收所有基站发射的相同的无线 信道, 并进行射频合并, 也就是所谓的 SFN操作。 SFN操作带来了多小区合并的 增益, 使得系统容量大大增加。 更高的系统容量意味着: 只需要较少的带宽资源 就可以传输相同的数据量。
此外, 电池寿命是 MBMS服务中所遇到的一个重要问题。 为了节省电池寿 命, 该 UE应该能够容易地知道是否存在其所关心的业务。这是周期性实现的。优 选地, 该信令应该仅在非常短的时隙内传输, 并且在大多数时间内, 该 UE断开该 接收机。 从这一点来看, 重复的方法引起了更长的重复时间。 由于使用 SFN操作 传输 MBMS信令,系统容量大大增加,使得传输相同数据量所需的时间大大减少, 也就减少了 UE读取这些信息所需要的时间, 从而增加了电池寿命。
因此, 信令消息应该尽可能广地采用 SFN操作。 首先, 将讨论 MBMS控制信道 (MCCH ) 控制消息的构成。 根据本发明, MCCH控制消息包括以下六个种类的信息, 分别为:
· 一般信息, 例如, 无线承载 (RB ) 配置信息、 频率信息、 计时器信息和 触发器信息等
- 服务专用信息, 包括通告 RB释放信息等, 通告信息主要是告知用户其关 注的业务幵始了、 或者配置发生变化了 (包括业务结束、 承载释放等)。
•SFN域 ID (标识符), 在进行 SFN操作时, 信息的传输是以
SFN域为单位进行组织的, 每个 SFN域采用相同的配置, 通过 ID可以简单地索引 到这个 SFN域。
- 服务调度信息, 用于指示在一个调度周期内, 有哪些业务分配了资源以及 分配了哪些资源。
- 小区专用信息, 包括一些只在本小区发的信息, 比如单小区业务信息, 还 包括服务列表等
- 计数信息, 表示网络对目前接收该业务的 UE的数目的统计。 在以上各类信息中, 一般信息对于所有的 MBMS多小区传输而言是较为重 要的。 该一般信息包括基本无线电参数, 诸如缺省 RB配置信息、 计时器信息和触 发器信息等。 该一般信息对于 SFN中的所有小区而言是公用的。 因此, 该一般信 息是可以在 SFN级合并的。 需要注意的是, 该一般信息将在 MCCH控制消息中占 用相当大的一部分。
通常而言, 小区专用信息是不可合并的。 但是需要指出的是, 对于启用 /禁 用类型的计数, 所述计数信息是小区公用的, 因此是可进行小区级合并的。
下面将参考附图, 主要描述如何对服务专用信息和服务调度信息应用 SFN 合并策略。
这里, 该 SFN合并策略包括 SFN级合并、 SFN域级合并、 以及 SFN域交叉级 合并。 SFN级合并针对所有小区而言的, 只要支持 SFN操作就都在合并范围之内。 SFN域级合并, 是指只有在 SFN域之内小区发射的信号可以合并。 SFN域交集合 并是指不同的 SFN域覆盖的区域不同, 但是它们重叠部分的那些小区拥有相同的 业务数据、 相同的控制信令, 所以这些小区发射的信号可以进行合并。
图 1是说明在 SFN域发生交叉的情况下需要进行 SFN域交叉级合并的示意 图。
如图 1所示, 两个或多个 SFN域可以彼此重叠。 每一个小区可能属于不同的 SFN域, 但是可能会存在一些交叉部分。 针对服务专用信息和服务调度信息, 如 图 1所示的 SFN域交叉部分的那些小区具有相同的信息要广播。 因此, 此时, 对服 务专用信息和服务调度信息可进行 SFN域交叉级合并。 需要指出的是, 该 SFN域 交叉级合并对于 UE而言是透明的。
图 2是示出了根据本发明, 对 MCCH控制消息中的服务专用信息和服务调度 信息应用 SFN域交叉级合并的示意图。
如图 2所示, 将 MCCH控制消息中的服务专用信息和服务调度信息与 MBMS 业务数据分离地配置, 其中服务专用信息和服务调度信息被应用了 SFN域交叉级 合并。
如图 2所示的结构使得信令通告变得容易。 UE可以具有足够的时间来建立无 线承载 (RB ) , 因为在数据传输之前能够以足够的时间来发送服务专用信息和服 务调度信息。 图 2中的 MTCH (MBMS传输信道) 信道用于传输 MBMS业务数据。
需要指出的是, 如图 2所示的 MCCH控制消息基于非预留的结构。
如图 2所示, 根据本发明, 在对 MCCH控制消息中的服务专用信息和服务调 度信息进行 SFN域交叉级合并的基础上, 来传输 MBMS数据。 因此, 在调度周期 内, 该服务专用信息和服务调度信息被添加到所有 MBMS业务数据之前 (在时间 域上), 以形成根据本发明的 MCCH控制消息。 具体的控制信道结构如图所示。 针对图 1所示的情况, 如果大多数 SFN域是相同的, 则如图 2所示采用 SFN域 交叉级合并所获得的合并增益类似于 SFN域级合并所能够获得的合并增益。在图 2 所示的情况下, 服务列表 (小区专用信息) 也是可以进行 SFN域交叉级合并。 因 为不同 SFN交集的业务相同, 所以服务列表也必然相同,因此可以合并。 图 3是示出了根据本发明, 对 MCCH控制消息中的服务专用信息和服务调度 信息应用 SFN域级合并的示意图。
对于相同 SFN域内的所有小区而言, MCCH控制消息中的服务专用信息和服 务调度信息是相同的。 此时, 可以对该服务专用信息和服务调度信息进行 SFN域 级合并的。
如图 3所示, 在调度周期内, 可以在各个 MBMS业务数据之前分别附加相应 的服务专用信息和服务调度信息, 该服务专用信息和服务调度信息被应用了 SFN 域级合并。
需要指出的是, 此时, 可以在分离的传输块 (TB ) 上传输服务专用信息和 服务调度信息, 从而可使其具有不同的服务质量 (QoS )。 对于传输同一 MBMS 业务数据的多个相邻传输块而言, 仅需要在第一传输块内附加服务专用信息和服 务调度信息。
尽管这样的 MCCH控制消息结构可能在信令通告方面上存在缺陷。但是服务 专用信息和服务调度信息仅占用了少量的无线电资源, 从而可以对 MCCH信道和 MTCH信道 (MBMS传输信道) 进行频分复用 (FDM )。
以上仅作为示例示出了根据本发明应用了 SFN合并策略的 MCCH控制消息 的状态。 需要指出的是, 本发明并不局限于此。
作为总结,针对 MCCH控制消息中的除了服务专用信息和服务调度信息之外 的各个信息,
-一般信息可进行 SFN域级合并;
- 对于 SFN域 ID列表, 可以使用 SFN域交叉级合并
- 对于单小区服务的小区专用信息通常是不可合并的,但是对于多小区服务 的小区专用信息 (例如, 服务列表) 可以采用 SFN域交叉级合并
- 计数信息通常是小区专用的, 对于启用 /禁用 (on/off) 类型的计数, 小区 公共计数也是可能的, 此时可进行小区级合并。
如上所述,根据本发明,针对 MCCH控制消息中的不同种类的信息可以采用 不同 (最佳) 合并级。
图 4是示出了根据本发明的针对 MBMS业务的调度方法的流程图。
如图 4所示, 在步骤 401, 与 MBMS业务数据分离地设置服务专用信息和服 务调度信息, 以形成 MBMS控制信道 MCCH控制消息。 然后, 在步骤 402, 向接 收端发送所述 MCCH控制消息和所述 MBMS业务数据。 这里, 所述服务专用信息 和服务调度信息被应用了单频网络 (SFN ) 合并策略。 该 SFN合并策略包括 SFN 级合并、 SFN域级合并、 以及 SFN域交叉级合并。 具体合并策略的应用如上所述。
图 5是示出了根据本发明的针对 MBMS业务的调度设备的方框图。
如图 5所示, 根据本发明的调度设备包括: MCCH (MBMS控制信道) 控制 消息形成装置 501和发送装置 502。 该 MCCH控制消息形成装置 501与 MBMS业务 数据分离地设置服务专用信息和服务调度信息, 以形成 MCCH控制消息。 该发送 装置 502向接收端发送所述 MCCH控制消息和所述 MBMS业务数据。 如上所述, 所述服务专用信息和服务调度信息被应用了单频网络 SFN合并策略。
这里, 该调度设备可以包括在移动通信系统的发送端内, 该发送端通常为 基站。 而如上所述的接收端通常是指移动台。
根据本发明, 可以使得控制信道可以最大限度地利用 SFN操作, 从而增加了 控制信道的容量和可靠性。 而移动台 (UE)可以缩短读取控制信道的时间, 从而 延长电池寿命。
尽管以上己经结合本发明的优选实施例示出了本发明, 但是本领域的技术 人员将会理解, 在不脱离本发明的精神和范围的情况下, 可以对本发明进行各种 修改、 替换和改变。 因此, 本发明不应由上述实施例来限定, 而应由所附权利要 求及其等价物来限定。

Claims

权 利 要 求
1、 一种针对多媒体广播组播业务 MBMS的调度方法, 包括:
与 MBMS业务数据分离地设置服务专用信息和服务调度信息, 以形成
MBMS控制信道 MCCH控制消息; 以及
向接收端发送所述 MCCH控制消息和所述 MBMS业务数据,
其中, 所述服务专用信息和服务调度信息被应用了单频网络 SFN合并策略。
2、根据权利要求 1所述的方法,其中所述 SFN合并策略包括 SFN级合并、 SFN 域级合并、 以及 SFN域交叉级合并。
3、 根据权利要求 1所述的方法, 其中所述 MCCH控制消息还包括一般信息, 所述一般信息是可进行 SFN级合并的。
4、 根据权利要求 3所述的方法, 其中所述一般信息包括无线承载 RB配置信 息、 频率信息、 计时器信息和触发器信息。
5、 根据权利要求 1所述的方法, 其中所述 MCCH控制消息还包括 SFN域 ID, 所述 SFN域 ID是可进行 SFN域交叉级合并的。
6、根据权利要求 1所述的方法,其中所述 MCCH控制消息还包括小区专用信 息, 所述小区专用信息包括服务列表。
7、根据权利要求 6所述的方法, 其中所述服务列表是可进行 SFN域交叉级合 并的。
8、 根据权利要求 1所述的方法, 其中所述 MCCH控制消息还包括计数信息, 对于启用 /禁用类型的计数, 所述计数信息是可进行小区级合并的。
9、 根据权利要求 1所述的方法, 其中在调度周期内的所有 MBMS业务数据 之前, 附加应用了 SFN域交叉级合并的服务专用信息和服务调度信息。
10、 根据权利要求 1所述的方法, 其中在调度周期内的各个 MBMS业务数据 之前, 分别附加相应的应用了 SFN域级合并的服务专用信息和服务调度信息。
11、根据权利要求 1所述的方法,其中所述 MCCH控制消息是不基于预留的。
12、 一种针对多媒体广播组播业务 MBMS的调度设备, 包括:
MBMS控制信道 MCCH控制消息形成装置,与 MBMS业务数据分离地设置服 务专用信息和服务调度信息, 以形成 MCCH控制消息; 以及 发送装置, 向接收端发送所述 MCCH控制消息和所述 MBMS业.务^搏. : 其中, 所述服务专用信息和服务调度信息被应用了单频网络 SFN合并策略:
13、 根据权利要求 12所述的设备, 其中所述 SFN合并策略包括 SFN级'合并、
SFN域级合并、 以及 SFN域交叉级合并。
14、根据权利要求 12所述的设备,其中所述 MCCH控制消息还包括一般信息, 所述一般信息是可进行 SFN级合并的。
15、 根据权利要求 14所述的设备, 其中所述一般信息包括无线承载 RB配置 信息、 频率信息、 计时器信息和触发器信息。
16、根据权利要求 12所述的设备,其中所述 MCCH控制消息还包括 SFN域 ID, 所述 SFN域 ID是可进行 SFN域交叉级合并的。
17、根据权利要求 12所述的设备,其中所述 MCCH控制消息还包括小区专用 信息, 所述小区专用信息包括服务列表。
18、根据权利要求 17所述的设备, 其中所述服务列表是可进行 SFN域交叉级 合并的。
19、根据权利要求 12所述的设备,其中所述 MCCH控制消息还包括计数信息, 对于启用 /禁用类型的计数, 所述计数信息是可进行小区级合并的。
20、 根据权利要求 12所述的设备, 其中所述调度设备在调度周期内的所有 MBMS业务数据之前, 附加应用了 SFN域交叉级合并的服务专用信息和服务调度 in息。
21、 根据权利要求 12所述的设备, 其中所述调度设备在调度周期内的各个
MBMS业务数据之前, 分别附加相应的应用了 SFN域级合并的服务专用信息和服 务调度信息。
22、根据权利要求 12所述的设备,其中所述 MCCH控制消息是不基于预留的。
23、 一种包括根据权利要求 12所述的调度设备的基站。
PCT/CN2008/000554 2007-03-21 2008-03-20 Scheduling method directed to mbms, scheduling device and base station including scheduling device Ceased WO2008113262A1 (en)

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US20130250840A1 (en) 2013-09-26
JP5596352B2 (ja) 2014-09-24
KR101404432B1 (ko) 2014-06-10
US8467328B2 (en) 2013-06-18
EP2134103B1 (en) 2015-09-02
KR20100015731A (ko) 2010-02-12
US20100113056A1 (en) 2010-05-06
JP2010521901A (ja) 2010-06-24
CN101272518B (zh) 2012-07-25
US9451588B2 (en) 2016-09-20
EP2134103A4 (en) 2012-02-08
EP2134103A1 (en) 2009-12-16

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