WO2010130215A1 - 组播单频网中的信道同步方法、系统及设备 - Google Patents

组播单频网中的信道同步方法、系统及设备 Download PDF

Info

Publication number
WO2010130215A1
WO2010130215A1 PCT/CN2010/072717 CN2010072717W WO2010130215A1 WO 2010130215 A1 WO2010130215 A1 WO 2010130215A1 CN 2010072717 W CN2010072717 W CN 2010072717W WO 2010130215 A1 WO2010130215 A1 WO 2010130215A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
mbms service
service information
base station
mcch
Prior art date
Application number
PCT/CN2010/072717
Other languages
English (en)
French (fr)
Inventor
张大钧
杨晓东
梁靖
Original Assignee
大唐移动通信设备有限公司
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
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP10774556.4A priority Critical patent/EP2432256B1/en
Priority to US13/320,442 priority patent/US8824350B2/en
Publication of WO2010130215A1 publication Critical patent/WO2010130215A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • 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

  • the present invention relates to the field of wireless communication technologies, and in particular, to a channel synchronization method, system and device in a multicast single frequency network. Background technique
  • MBMS Multimedia Broadcast Multicast Service
  • LTE Long Term Evolution
  • MBMS can be provided on both the MBMS-dedicated frequency layer and the frequency layer shared with non-MBMS services.
  • the LTE cell supporting MBMS may be an MBMS dedicated cell or an MBMS/unicast mixed cell.
  • the MBMS service can perform single cell transmission or multi-cell transmission.
  • the MBMS dedicated frequency layer refers to the frequency layer dedicated to MBMS transmission.
  • the cell is referred to as an MBMS dedicated cell;
  • a cell is configured as a frequency layer not specifically used for MBMS transmission, the cell is referred to as an MBMS/unicast mixed cell.
  • the unicast and MBMS services in the MBMS/unicast hybrid cell are cooperatively transmitted, and some moments are used for MBMS service transmission, and other moments are used for unicast service transmission.
  • MBMS single cell transmission means that MBMS is transmitted only within the coverage of a designated cell, and does not support the combination of MBMS transmissions from multiple cells;
  • MBMS multi-cell transmission needs to support the multicast single frequency network (MBSFN) transmission mode.
  • MBSFN multicast single frequency network
  • the so-called MBSFN refers to synchronous transmission in multiple cells at the same frequency at the same time. Using this transmission method can save frequency resources and improve frequency utilization. It ⁇ "seeking multiple cells to send the same content at the same time. In this way, the UE receiver can treat multiple MBSFN cells as one. A large community. Therefore, the UE will not only be subject to inter-cell interference transmitted by neighboring cells, but will also benefit from the superposition of signals from multiple MBSFN cells. Both the MBMS dedicated cell and the MBMS/unicast hybrid cell can adopt the MBSFN transmission mode. In addition, the use of advanced UE receiver technology can also solve the problem of time difference of multipath propagation, thereby eliminating intra-cell interference. The diversity effect brought by the multi-cell co-frequency transmission can also solve problems such as blind zone coverage, enhance the reliability of reception, and improve coverage.
  • MBMS multi-cell transmission The technical features of MBMS multi-cell transmission are as follows:
  • MBSFN area can Semi-static configuration, such as: Configuration through the operation management device (0&M).
  • one carrier frequency can support multiple MCHs.
  • the allocation of MCH physical resources is done by assigning a mode of one subframe to the MCH, and the associated subframes are not necessarily adjacent in time. This mode is called MCH Subframe Allocation Mode (MSAP).
  • MSAP MCH Subframe Allocation Mode
  • the MCH of each MCH carrying the MTCH is notified by the MCCH, and the MCH of the MTCH is mapped, and the transmission order of each MTCH is also notified by the MCCH.
  • An MCH only contains data belonging to one MBSFN area, but each MCH can map multiple MBMS services.
  • Embodiments of the present invention provide a channel synchronization method, system, and device in a multicast single frequency network.
  • the problem that the base station synchronously transmits MCCH information in the MBSFN area cannot be ensured.
  • An embodiment of the present invention provides a channel synchronization method in a multicast single frequency network, where the method includes: acquiring, by a network device in the multicast single frequency network, multimedia broadcast multicast service (MBMS) service information, and determining the bearer Time resources and frequency resources of MBMS service information;
  • MBMS multimedia broadcast multicast service
  • the base station in the multicast single frequency network uses the time resource and the frequency resource to send the MBMS service information to the terminal through an MBMS point-to-multipoint control channel (MCCH).
  • MCCH MBMS point-to-multipoint control channel
  • An embodiment of the present invention provides a channel synchronization system, where the system includes:
  • a network device configured to acquire MBMS service information, and determine a time resource and a frequency resource that bears the MBMS service information; and send the MBMS service information, the time resource, and the frequency resource information to a multicast single frequency Base station in the network;
  • the base station is configured to send, by using the time resource and the frequency resource, the MBMS service information to the terminal by using the MCCH.
  • An embodiment of the present invention provides a network device, where the device includes:
  • a message obtaining unit configured to acquire MBMS service information
  • a resource determining unit configured to determine a time resource and a frequency resource that carry the MBMS service information
  • an information sending unit configured to send the MBMS service information, the time resource, and the frequency resource information to a base station in the multicast single frequency network.
  • An embodiment of the present invention provides a base station, where the base station includes:
  • An information receiving unit configured to receive MBMS service information sent by a network device in a multicast single frequency network, and information about time resources and frequency resources that carry the MBMS service information;
  • a message sending unit configured to send the MBMS service information to the terminal by using the time resource and the frequency resource by using the MCCH.
  • the MBMS service information and the time and frequency resource information carrying the MBMS service information are sent by a network device in the multicast single frequency network to the base station in the multicast single frequency network, and each base station The time and frequency resources are used to send the MBMS service information to the terminal.
  • the base station in the multicast single frequency network uses the same time and frequency resources notified by the network device to send the MBMS service information. Therefore, the base station can synchronously send the MCCH information. purpose.
  • FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention
  • FIG. 2A is a schematic structural diagram of a networking in the first embodiment of the present invention.
  • FIG. 2B is a schematic structural diagram of a networking in Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a device according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a channel synchronization method in a multicast single frequency network.
  • a network device in the multicast single frequency network uses the MBMS service information and the bearing.
  • the resource information of the information is sent to the base station in the multicast single frequency network, and the base station uses the resource to send the MBMS service information, so as to achieve the purpose of synchronously transmitting the MCCH information by each base station.
  • a method for channel synchronization in a multicast single frequency network specifically includes the following steps:
  • Step 10 The network device in the multicast single frequency network obtains MBMS service information, and determines an inter-bump resource and a frequency resource that bears the MBMS service information.
  • Step 11 The network device sends the obtained MBMS service information and the determined time resource and frequency resource information to the base station in the multicast single frequency network.
  • Step 12 The base station in the multicast single frequency network sends the MBMS service information to the terminal through the MCCH by using the time resource and the frequency resource.
  • Embodiment 1 The method of the present invention will be described below by way of specific examples: Embodiment 1:
  • the present embodiment can be applied to a scenario in which an MCE is merged into a base station, and 00&0 determines a base station as a primary base station in each base station of the multicast single frequency network, and the primary base station transmits to the multicast single frequency network.
  • Other base stations send MBMS service information and resource information, as follows:
  • Step S01 After receiving the MBMS session start message sent by the core network device (such as the mobility management entity (MME), the primary base station starts to organize the MBSFN MCCH INFORMATION message: extracting the MBMS service information carried in the MBMS session start message, according to the The MBMS service information organizes the MCCH message and is added in the MBSFN MCCH INFORMATION message, and the MCCH message carries the MBMS service information.
  • the MBSFN area identifier, time information, and MCCH configuration information are also added to the MBSFN MCCH INFORMATION message.
  • Other base stations will be in the ready state after receiving the MBMS Session Start message.
  • the specific format of the MBSFN MCCH INFORMATION message is as follows:
  • the MBSFN Identity can be used to distinguish different MBSFN areas;
  • the MCCH message in the MCCH message list is encoded by the primary base station as a message format that can be directly transmitted by the air interface, so other base stations can only transparently transmit the MCCH message;
  • the frame number of the radio frame used for scheduling the MCCH message, and the like the MCCH configuration information may include: a subframe number of a subframe used for scheduling the MCCH message, or a subframe number of the start subframe of the scheduled MCCH message, and The number of frames, the frequency resource information used for scheduling, the scheduling mode information, the MCCH scheduling repetition period, and the like; wherein, the scheduling mode information includes an encoding mode, an encoding rate, and the like; and the MCCH scheduling repetition period refers to a base station to the terminal in the multicast single frequency network. The time period during which the MCCH message is sent.
  • the manner in which the primary base station determines the above frame number and subframe number may be as follows:
  • the manner in which the primary base station determines the frame number, the starting subframe number, and the number of subframes may be as follows: determining, according to the data volume of the extracted MBMS service information, the number of subframes required to send the MBMS service information; from the current available for MCCH control One subframe is selected as the starting subframe in the subframe for information transmission, and the subframe number of the selected starting subframe and the frame number of the radio frame in which the subframe is located, and the number of subframes are determined as carrying MBMS service information. Time resources.
  • the primary base station may be added in the MBSFN MCCH INFORMATION message according to the pre-configured frequency resource information, scheduling mode information, and MCCH scheduling repetition period.
  • Step S02 The primary base station sends the MBSFN MCCH INFORMATION message to other base stations in the multicast single frequency network through the X2 interface.
  • Step S03 The primary base station and the other base stations that receive the MBSFN MCCH INFORMATION message send the MCCH message carried in the MBSFN MCCH INFORMATION message to the terminal through the MCCH according to the time information and the MCCH configuration information carried in the MBSFN MCCH INFORMATION message.
  • the time information carried in the MBSFN MCCH INFORMATION message includes a frame number and a subframe number elbow, and the base station is in the radio frame corresponding to the frame number, the subframe corresponding to the subframe number is inbound, and is carried in the MBSFN MCCH INFORMATION message.
  • the frequency resource sends an MCCH message to the terminal.
  • the MCCH message may be modulated by using scheduling mode information carried in the MBSFN MCCH INFORMATION message before the MCCH message is sent.
  • the base station selects the subframe corresponding to the starting subframe number in the radio frame corresponding to the frame number. A subframe of the number of subframes, and transmitting the MCCH message to the terminal by using the frequency resource carried in the MBSFN MCCH INFORMATION message in the selected subframe.
  • the MCCH message may be modulated by using scheduling mode information carried in the MBSFN MCCH INFORMATION message before the MCCH message is sent.
  • Step S05 When the other base stations other than the primary base station receive the MBSFN MCCH INFORMATION message sent by the primary base station again, the MBSFN selects the MCCH that is closest to the current time and is received before according to the time resource information carried in the MBSFN MCCH INFORMATION message. scheduling resources in time repetition period, and using the time resource for transmitting the MBSFN MCCH iNFORMATION message carries a MCCH message to the terminal
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the present embodiment can be applied to the deployment scenario where the MCE is used as the centralized control node.
  • the MCE sends the MBMS service information and resource information to the base station in the multicast single-frequency network, as follows: Step S11: The MCE receives the core.
  • the network device such as the mobility management entity (MME)
  • MME mobility management entity
  • the organization starts to organize the MBSFN MCH INFORMATION message: extracts the MBMS service information carried in the MBMS session start message, organizes the MCCH message according to the MBMS service information, and adds In the MBSFN MCH INFORMATION message, the MCCH message carries the MBMS service information.
  • the MBSFN area identifier, time information, and MCCH configuration information are also added to the MBSFN MCH INFORMATION message.
  • the specific format of the MBSFN MCH INFORMATION message is as follows:
  • the MCCH message in the MCCH message list is encoded by the MCE as the M2 port.
  • Step S13 The base station that receives the MBSFN MCH INFORMATION message sends the MCCH message carried in the message to the terminal according to the time information and the MCCH configuration information carried in the MBSFN MCH INFORMATION message.
  • the sending manner refer to the method in the first embodiment. description.
  • Step S14 The MCCH configuration information or the MBMS service is changed, so that the content carried by the MBSFNMCH INFORMATION message needs to be changed, the MCE sends the MBSFN MCH INFORMATION message carrying the changed content to each base station in the MBSFN through the M2 interface, and repeats the above step S13;
  • Step S15 When the base station in the MBSFN receives the MBSFN MCH INFORMATION message sent by the MCE again, according to the time resource information carried in the MBSFN MCH INFORMATION message, the base station selects the time that is closest to the current time and is in the previously received MCCH scheduling repetition period. The resource is used to send the MCCH message carried by the MBSFN MCH INFORMATION message to the terminal through the MCCH.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the MBMS service information and resource information are sent to the base station in the multicast single frequency network by using the O&M, as follows:
  • Step S21 The operator configures the MCCH information in the O&M according to the network plan, and includes the MBMS service information to be sent and the resource information that carries the service information.
  • Step S22 The O&M sends a message carrying the configured MBMS service information and the resource information such as the time and frequency of the MBMS service information to the base station in the multicast single frequency network.
  • the specific message may be the MBSFN in the first embodiment and the second embodiment.
  • Step S23 The base station sends the MCCH message carrying the MBMS service information to the terminal according to the resource information carried in the received message.
  • the sending manner refer to the description in the first embodiment.
  • Step S24 When the MCCH configuration information or the MBMS service changes, the O&M passes the M2. The interface sends a message carrying the changed content to each base station in the MBSFN, and repeats the above step S23.
  • an embodiment of the present invention further provides a channel synchronization system, where the system includes:
  • the network device 31 is configured to acquire MBMS service information, and determine a time resource and a frequency resource that carry the MBMS service information, and send the MBMS service information, the time resource, and the frequency resource information to the multicast through the MCCH.
  • the base station 32 is configured to send the MBMS service information to the terminal by using the time resource and the frequency resource.
  • the primary base station is configured to: receive an MBMS session start message sent by the core network device, and extract the MBMS service information carried in the MBMS session start message. Transmitting the MBMS service information and the information of the physical resource to other base stations in the multicast single frequency network except the primary base station.
  • the MCE is configured to: receive an MBMS session start message sent by the core network device, and extract MBMS service information carried in the MBMS session start message; The information of the physical resource is sent to all base stations in the multicast single frequency network.
  • the O&M is used to:
  • the network device 31 is configured to: determine, according to the amount of data carried by the MBMS service information, a number of subframes required to send the MBMS service information; and select the subframe from a subframe currently available for MCCH control information transmission. The number of the subframes is determined by the selected subframe as the time resource that carries the MBMS service information.
  • the base station 32 is configured to: send the MBMS service information to the terminal in the selected subframe.
  • the network device 31 is configured to: determine, according to the amount of data carried by the MBMS service information, a number of subframes required to send the MBMS service information; and select one subframe from a subframe currently available for MCCH control information transmission.
  • a start subframe determining the subframe number of the selected start subframe and the frame number of the radio frame in which the subframe is located, and the number of the subframes as the time for carrying the MBMS service information
  • the base station 32 is configured to: select, in a radio frame corresponding to the frame number, a subframe of the number of subframes starting from a subframe corresponding to the start subframe number, and select The intra-subframe transmits MBMS service information to the terminal.
  • the network device 31 is further configured to: send information about a MCCH scheduling repetition period to the base station;
  • the base station 32 is further configured to: after receiving the MBMS service information sent by the network device to the terminal by using the time resource and the frequency resource, when receiving the MBMS service information and time resource information sent by the network device again, And selecting, according to the information of the time resource, a subframe that is closest to the current time and within the MCCH scheduling repetition period, and uses the subframe to send the received MBMS service information again.
  • the network device 31 is further configured to: determine an MCCH message modulation mode, and send information about the MCCH message modulation mode to the base station; the base station 32 is configured to: send, by using the MBMS service information modulation mode, the terminal to send the MBMS business information.
  • an embodiment of the present invention further provides a network device, which can be applied to a channel synchronization system, where the device includes:
  • the message obtaining unit 40 is configured to obtain MBMS service information.
  • a resource determining unit 41 configured to determine a time resource and frequency information transmitting unit 42 that carries the MBMS service information, configured to send, by using an MCCH, the information of the MBMS service information, the time resource, and the frequency resource to A base station in a multicast single frequency network.
  • the message obtaining unit 40 includes:
  • a receiving unit configured to receive an MBMS session start message sent by the core network device, and an extracting unit, configured to extract an MBMS service message carried in the MBMS session start message, where the message obtaining unit 40 includes:
  • a storage unit configured to save the configured MCCH configuration information
  • the resource determining unit 41 includes:
  • a determining unit configured to determine, according to the amount of data carried by the MBMS service information, a number of subframes required to send the MBMS service information
  • a selecting unit configured to select the number of subframes from the subframe currently available for MCCH control information transmission, and determine the selected subframe as a time resource for carrying the MBMS service information; or, from the current available Selecting one subframe as the starting subframe in the subframe in which the MCCH control information is transmitted, determining the subframe number of the selected starting subframe and the frame number of the radio frame in which the subframe is located, and the number of the subframes as Time resources for undertaking MBMS business information.
  • the information transmitting unit 42 is also used to:
  • the information of the MCCH scheduling repetition period and/or the information of the MCCH message modulation mode are transmitted to the base station.
  • an embodiment of the present invention further provides a base station, which can be applied to a channel synchronization system, where the base station includes:
  • the information receiving unit 50 is configured to receive MBMS service information sent by the network device in the multicast single frequency network and information about time resources and frequency resources that carry the MBMS service information.
  • the message sending unit 51 is configured to send the MBMS message to the terminal by using the time resource and the frequency resource.
  • the information receiving unit 50 is further configured to: receive information about an MCCH scheduling repetition period sent by the network device; receive MBMS service information and time resource information that are sent by the network device again; and the message sending unit 51 further uses And: selecting a subframe that is closest to the current time and is within the MCCH scheduling repetition period according to the information of the time resource, and uses the subframe to send the received MBMS service information again.
  • the information receiving unit 50 is further configured to: receive MCCH message modulation mode information sent by the network device; the message sending unit 51 is configured to: send the MBMS service information to the terminal by using the MCCH message modulation mode.
  • the present invention can be applied to both a time division duplex (TDD) system and a frequency division duplex (FDD) system.
  • the network device in the present invention may be the main In addition to the base station, the MCE, the O&M, and any other network device that has a communication interface with the base station in the MBSFN.
  • the beneficial effects of the present invention include:
  • a network device in the multicast single frequency network sends the MBMS service information and the resource information that carries the MBMS service information to the base station in the multicast single frequency network, and each base station uses the resource to The terminal sends the MBMS service information.
  • the base station in the multicast single-frequency network uses the same resource notified by the network device to send the same MBMS service information. Therefore, the base station can synchronously transmit the MCCH information.

Landscapes

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

Description

组播单频网中的信道同歩方法、 系统及设备 本申请要求在 2009年 05月 15日提交中国专利局、 申请号为 200910084299.2、 发明名称为"组播单频网中的信道同步方法、 系统及设备" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及无线通信技术领域, 尤其涉及一种组播单频网中的信道同步 方法、 系统及设备。 背景技术
多媒体广播组播业务(MBMS )用于为无线小区中的用户提供多媒体广 播和组播服务。长期演进( LTE )系统中,在 MBMS专用的频率层和与非 MBMS 业务共享的频率层上都能够提供 MBMS。 支持 MBMS 的 LTE 小区可以是 MBMS专用小区也可以是 MBMS/单播混合小区。 MBMS业务可以进行单小 区传输, 也可以进行多小区传输。
MBMS专用频率层是指专门用于 MBMS传输的频率层。当一个小区被配 置为 MBMS专用频率层时, 称该小区为 MBMS专用小区; 当一个小区被配 置为并不是专门用于 MBMS传输的频率层时, 称该小区为 MBMS/单播混合 小区。 MBMS/单播混合小区中的单播和 MBMS业务进行协同传输,某些时刻 用于 MBMS业务传输,其他的时刻用于单播业务传输。 MBMS的单小区传输 是指 MBMS 只在一个指定小区的覆盖范围内传输, 不支持来自多小区的 MBMS传输的组合; MBMS的多小区传输需要支持组播单频网( MBSFN )传 输方式。
所谓 MBSFN是指在同一时间以相同频率在多个小区进行同步传输。使用 这种传输方式可以节约频率资源, 提高频谙利用率。 它^ "求多个小区将完全 相同的内容同时发送。 这样一来, UE接收机就能将多个 MBSFN小区视为一 个大的小区。 因此, UE不仅不会受到相邻小区传输的小区间干扰, 而且将受 益于来自多个 MBSFN小区的信号的叠加。 MBMS专用小区和 MBMS/单播混 合小区都可以采用 MBSFN传输方式。 另外,如果利用先进的 UE接收机技术 还能解决多径传播的时间差问题, 从而消除小区内干扰。 这种多小区同频传 输所带来的分集效杲还可以解决盲区覆盖等问题, 增强接收的可靠性, 提高 覆盖率。
MBMS多小区传输的技术特点如下:
第一, MBSFN区域内 MBMS的同步传输;
第二, 支持多小区 MBMS传输的合并;
第三, MBMS点到多点业务信道( MTCH )和 MBMS点到多点控制信道 ( MCCH )映射在用于分组暂时移动(PTM )传输的多播信道(MCH )上; 第四, MBSFN 区域可以半静态配置, 如: 通过操作管理设备(0&M ) 进行配置。
对亍 MBMS的多小区传输, 一个载波频率可以支持多个 MCH。 对 MCH 物理资源的分配通过为 MCH指定一个子帧的模式来完成,并且相关子帧在时 间上没必要相邻。 这种模式被叫做 MCH子帧分配模式(MSAP )。 由 MCCH 来通知每一个携带 MTCH的 MCH的 MSAP,映射有多个 MTCH的 MCH上, 各 MTCH的传输次序也通过 MCCH来通知。 一个 MCH只包含属于一个 MBSFN区域的数据, 但每个 MCH可以映射多个 MBMS业务。
在实现本发明的过程中, 发明人发现现有技术中存在如下技术问题: 由上述内容可知,在 LTE系统中除了需要保证 MBMS业务数据在 MBSFN 区域内进行同步发送, MCCH也映射到 MCH, 因此也需要保证 MCCH的信 息在 MBSFN 区域内进行同步发送。 但现有的系统设计中未给出如何确保 MBSFN区域下所有基站同步发送 MCCH的信息。 发明内容
本发明实施例提供一种组播单频网中的信道同步方法、 系统及设备, 用 于解决现有技术中无法确保 MBSFN区域下基站同步发送 MCCH信息的问题。 本发明实施例提供一种組播单频网中的信道同步方法, 该方法包括: 所述组播单频网中的网络设备获取多媒体广播组播业务(MBMS )业务 信息, 并确定承载所述 MBMS业务信息的时间资源和频率资源;
所述网络设备将所述 MBMS业务信息、 所述时间资源和所述频率资源的 信息发送给所述组播单频网中的基站;
所述组播单频网中的基站利用所述时间资源和所述频率资源通过 MBMS 点到多点控制信道 ( MCCH )向终端发送所述 MBMS业务信息。
本发明实施例提供一种信道同步系统, 该系统包括:
网络设备, 用于获取 MBMS业务信息, 并确定承栽所述 MBMS业务信 息的时间资源和频率资源; 将所述 MBMS业务信息、 所述时间资源和所述频 率资源的信息发送给组播单频网中的基站;
基站, 用于利用所述时间资源和所述频率资源通过 MCCH向终端发送所 述 MBMS业务信息。
本发明实施例提供一种网络设备, 该设备包括:
消息获取单元, 用于获取 MBMS业务信息;
资源确定单元, 用于确定承载所述 MBMS业务信息的时间资源和频率资 源;
信息发送单元, 用于将所述 MBMS业务信息、 所述时间资源和所述频率 资源的信息发送给所述组播单频网中的基站。
本发明实施例提供一种基站, 该基站包括:
信息接收单元, 用于接收组播单频网中的网络设备发来的 MBMS业务信 息和承载所述 MBMS业务信息的时间资源和频率资源的信息;
消息发送单元, 用于利用所述时间资源和所述频率资源通过 MCCH向终 端发送所述 MBMS业务信息。
本发明中, 由组播单频网中的一网络设备将 MBMS 业务信息和承载该 MBMS业务信息的时间和频率资源信息发送给组播单频网中的基站, 各基站 利用该时间和频率资源向终端发送 MBMS业务信息, 由于组播单频网中的基 站均利用网络设备通知的相同的时间和频率资源发送 MBMS业务信息,因此, 可以实现各基站同步发送 MCCH信息的目的。 附图说明
图 1为本发明实施例提供方法的流程示意图;
图 2A为本发明实施例一中组网结构示意图;
图 2B为本发明实施例二中组网结构示意图;
图 3为本发明实施例提供系统的结构示意图;
图 4为本发明实施例提供设备的结构示意图;
图 5为本发明实施例提供设备的结构示意图。 具体实施方式
为了确保 MBSFN区域下各基站同步发送 MCCH信息, 本发明实施例提 供一种组播单频网中的信道同步方法, 本方法中, 组播单频网中的一网络设 备将 MBMS业务信息和承栽该信息的资源信息发送给组播单频网中的基站, 基站利用该资源发送 MBMS业务信息, 从而达到各基站同步发送 MCCH信 息的目的。
参见图 1, 本发明实施例提供的组播单频网中的信道同步方法, 具体包括 以下步骤:
步骤 10: 组播单频网中的网络设备获取 MBMS业务信息,并确定承栽所 述 MBMS业务信息的肘间资源和频率资源;
步骤 11: 网络设备将获取到的 MBMS业务信息以及确定的时间资源和频 率资源的信息发送给组播单频网中的基站;
步骤 12: 组播单频网中的基站利用所述时间资源和频率资源通过 MCCH 向终端发送所述 MBMS业务信息。
下面以具体实施例对本发明方法进行说明: 实施例一:
如图 2A所示,本实施例可以应用在 MCE合并入基站的部署场景, 0&M 在组播单频网的各基站中确定一个基站作为主基站, 由该主基站向组播单频 网中的其他基站发送 MBMS业务信息及资源信息, 具体如下:
步骤 S01: 主基站接收到核心网设备(如移动性管理实体(MME ) )发来 的 MBMS会话开始消息后, 开始组织 MBSFN MCCH INFORMATION消息: 提取 MBMS会话开始消息中携带的 MBMS业务信息, 根据该 MBMS业务信 息组织 MCCH消息并添加在 MBSFN MCCH INFORMATION消息中, MCCH 消息中携带 MBMS业务信息。 还将 MBSFN区域标识、 时间信息、 MCCH配 置信息添加在 MBSFN MCCH INFORMATION消息。 其他基站接收到 MBMS 会话开始消息后将处于准备状态。 MBSFN MCCH INFORMATION消息的具 体格式如下表:
Figure imgf000007_0001
上表中, MBSFN Identity可以用于区分不同的 MBSFN区域; MCCH 消 息列表中的 MCCH消息由主基站编码为空口可以直接传输的消息格式, 因此 其他基站可以只需将 MCCH消息进行透传; 时间信息具体可以包括用于调度 MCCH 消息的无线帧的帧号等, MCCH配置信息具体可以包括: 用于调度 MCCH消息的子帧的子帧号,或调度 MCCH消息的起始子帧的子帧号和予帧 数目、 以及调度使用的频率资源信息、 调度模式信息、 MCCH调度重复周期 等; 其中, 调度模式信息包括编码模式、 编码速率等; MCCH调度重复周期 是指组播单频网中基站向终端发送 MCCH消息的时间周期。
主基站确定上述帧号、 子帧号的方式可以如下:
根据 MBMS业务信息的数据量确定发送该 MBMS业务信息所需的子帧 数目; 从当前可用于 MCCH控制信息传输的子帧中选取该子帧数目个子帧, 将所选取的子帧确定为承载 MBMS业务信息的时间资源, 将所选取子帧的子 帧号和该子帧所在无线帧的帧号确定为承栽 MBMS业务信息的时间资源的信 自 . ■ ■ ■
主基站确定上述帧号、 起始子帧号、 子帧数目的方式可以如下: 根据提取出的 MBMS业务信息的数据量确定发送该 MBMS业务信息所 需的子帧数目; 从当前可用于 MCCH控制信息传输的子帧中选取一个子帧作 为起始子帧, 将所选取的起始子帧的子帧号和该子帧所在无线帧的帧号、 以 及子帧数目确定为承载 MBMS业务信息的时间资源。
主基站可以根据预先配置的频率资源信息、 调度模式信息和 MCCH调度 重复周期添加在 MBSFN MCCH INFORMATION消息中。
步骤 S02:主基站通过 X2接口将 MBSFN MCCH INFORMATION消息发 送给组播单频网中的其他基站;
步骤 S03: 主基站和接收到 MBSFN MCCH INFORMATION消息的其他 基站, 按照 MBSFN MCCH INFORMATION消息中携带的时间信息、 MCCH 配置信息通过 MCCH向终端发送 MBSFN MCCH INFORMATION消息中携带 的 MCCH消息;
例如, 在 MBSFN MCCH INFORMATION消息中携带的时间信息包括帧 号和子帧号肘, 基站在该帧号对应的无线帧中、 该子帧号对应的子帧向内、 并利用 MBSFN MCCH INFORMATION消息中携带的频率资源向终端发送 MCCH 消息。 在发送 MCCH 消息前还可以采用 MBSFN MCCH INFORMATION消息中携带的调度模式信息将该 MCCH消息进行调制。
在 MBSFN MCCH INFORMATION消息中携带的时间信息包括帧号和起 始子帧号、 子帧数目时, 基站在该帧号对应的无线帧中、 从该起始子帧号对 应的子帧开始选取该子帧数目的子帧, 并在选取的子帧内、 利用 MBSFN MCCH INFORMATION消息中携带的频率资源向终端发送 MCCH消息。在发 送 MCCH消息前还可以采用 MBSFN MCCH INFORMATION消息中携带的调 度模式信息将该 MCCH消息进行调制。 步骤 S04: MCCH配置信息或 MBMS业务等发生变化使得 MBSFN MCCH INFORMATION消息携带的内容需要变更时, 主 ENB通过 X2接口发送携带
Figure imgf000009_0001
并重复上述步骤 S03;
步骤 S05: MBSFN 中除主基站外的其他基站再次接收到主基站发来的 MBSFN MCCH INFORMATION 消 息时, 根据该 MBSFN MCCH INFORMATION消息携带的时间资源信息选取距离当前时间最近、 并且在之 前接收到的 MCCH调度重复周期内的时间资源, 并利用该时间资源向终端发 送该 MBSFN MCCH INFORMATION消息携带的 MCCH消息 a
实施例二:
如图 2B所示,本实施例可以应用在 MCE作为集中控制节点的部署场景, 由 MCE向组播单频网中的基站发送 MBMS业务信息及资源信息,具体如下: 步驟 Sll: MCE接收到核心网设备(如移动性管理实体 ( MME ) )发来 的 MBMS会话开始消息后, 开始组织 MBSFN MCH INFORMATION消息: 提取 MBMS会话开始消息中携带的 MBMS业务信息, 根据该 MBMS业务信 息组织 MCCH消息并添加在 MBSFN MCH INFORMATION消息中, MCCH 消息中携带 MBMS业务信息。 还将 MBSFN区域标识、 时间信息、 MCCH配 置信息添加在 MBSFN MCH INFORMATION 消息中。 MBSFN MCH INFORMATION消息的具体格式如下表:
Figure imgf000009_0002
上表中, MBSFN Identity, 时间信息、 MCCH配置信息的具体内容和确 定方式可以参见实施例一中的描述, 这里不再赘述, MCCH消息列表中的 MCCH消息由 MCE编码为 M2 口可以传输的消息格式, 因此基站需要将该 MCCH消息编码为空口可以传输的消息格式后再进行发送。 步骤 S12: MCE通过 M2接口将 MBSFN MCH INFORMATION消息发送 给组播单频网中的所有基站;
步骤 S13: 接收到 MBSFN MCH INFORMATION消息的基站, 将该消息 中携带的 MCCH消息, 按照 MBSFN MCH INFORMATION消息中携带的时 间信息、 MCCH配置信息通过 MCCH发送给终端;发送方式可以参见实施例 一中的描述。
步骤 S14: MCCH配置信息或 MBMS业务等发生变化使得 MBSFNMCH INFORMATION消息携带的内容需要变更时, MCE通过 M2接口发送携带变 化后内容的 MBSFN MCH INFORMATION消息给 MBSFN中各基站, 并重复 上述步骤 S13;
步骤 S15: MBSFN 中的基站再次接收到 MCE发来的 MBSFN MCH INFORMATION消息时,根据该 MBSFN MCH INFORMATION消息携带的时 间资源信息选取距离当前时间最近、 并且在之前接收到的 MCCH调度重复周 期内的时间资源,并利用该时间资源通过 MCCH向终端发送该 MBSFN MCH INFORMATION消息携带的 MCCH消息。
实施例三:
本实施例通过 0&M向组播单频网中的基站发送 MBMS业务信息及资源 信息, 具体如下:
步骤 S21: 运营商根据网络规划, 在 0&M配置 MCCH信息, 包括待发 送的 MBMS业务信息和承载该]\ 1^5业务信息的资源信息;
步骤 S22: O&M将携带配置的 MBMS业务信息和承载该 MBMS业务信 息的时间和频率等资源信息的消息发送给組播单频网中的基站; 具体消息可 以采用实施例一和实施例二中 MBSFN MCCH INFORMATION 消息或 MBSFN MCH INFORMATION消息;
步骤 S23: 基站按照接收消息中携带的资源信息向终端发送携带 MBMS 业务信息的 MCCH消息; 发送方式可以参见实施例一中的描述。
步骤 S24: MCCH配置信息或 MBMS业务等发生变化时, 0&M通过 M2 接口发送携带变化后内容的消息给 MBSFN中各基站, 并重复上述步骤 S23。 参见图 3, 本发明实施例还提供一种信道同步系统, 该系统包括:
网络设备 31, 用于获取 MBMS业务信息, 并确定承载所述 MBMS业务 信息的时间资源和频率资源; 将所述 MBMS业务信息、 所述时间资源和所述 频率资源的信息通过 MCCH发送给组播单频网中的基站;
基站 32, 用于利用所述时间资源和所述频率资源向终端发送所述 MBMS 业务信息。
若所述网络设备 31为所述组播单频网中的主基站, 所述主基站用于: 接收核心网设备发来的 MBMS会话开始消息, 提取该 MBMS会话开始 消息中携带的 MBMS业务信息; 将所迷 MBMS业务信息和所述物理资源的 信息发送给所述组播单频网中除所述主基站之外的其他基站。
若所述网络设备 31为 MBMS协调实体 MCE, 所述 MCE用于: 接收核心网设备发来的 MBMS会话开始消息, 提取该 MBMS会话开始 消息中携带的 MBMS业务信息; 将所述 MBMS业务信息和所述物理资源的 信息发送给所迷组播单频网中的所有基站。
若所述网络设备 31为操作管理实体 0&M, 所述 0&M用于:
从保存的 MCCH配置信息中查找到 MBMS业务信息; 将所述 MBMS业 务信息和所述物理资源的信息发送给所述组播单频网中的所有基站。
所述网络设备 31用于: 根据所述 MBMS业务信息所携带的数据量确定 发送所述 MBMS业务信息所需的子帧数目; 从当前可用于 MCCH控制信息 传输的子帧中选取所述子帧数目个子帧, 将所选取的子帧确定为承载所述 MBMS业务信息的时间资源; 相应的, 所述基站 32用于: 在所选取的子帧向 终端发送所述 MBMS业务信息。
所述网络设备 31用于: 根据所述 MBMS业务信息所携带的数据量确定 发送该 MBMS业务信息所需的子帧数目; 从当前可用于 MCCH控制信息传 输的子帧中选取一个子帧作为起始子帧, 将所选取的起始子帧的子帧号和该 子帧所在无线帧的帧号、 以及所述子帧数目确定为承载 MBMS业务信息的时 间资源; 相应的, 所述基站 32用于: 在所述帧号对应的无线帧中、 从所述起 始子帧号对应的子帧开始选取所述子帧数目的子帧, 并在选取的子帧内向终 端发送 MBMS业务信息。
所述网络设备 31还用于: 将 MCCH调度重复周期的信息发送给所述基 站;
所述基站 32还用于: 在利用所述时间资源和所述频率资源向终端发送所 述 MBMS业务信息之后, 接收到所述网络设备再次发来的 MBMS业务信息 和时间资源信息时, 才艮据所述时间资源的信息选取距离当前时间最近、 并且 在所述 MCCH调度重复周期内的子帧, 并利用该子帧发送再次接收到的 MBMS业务信息。
所述网络设备 31还用于: 确定 MCCH消息调制模式, 并将该 MCCH消 息调制模式的信息发送给所述基站; 所述基站 32用于: 采用所述 MBMS业 务信息调制模式向终端发送所述 MBMS业务信息。
参见图 4,本发明实施例还提供一种网络设备,可以应用于信道同步系统 中, 该设备包括:
消息获取单元 40, 用于获取 MBMS业务信息;
资源确定单元 41 ,用于确定承载所述 MBMS业务信息的时间资源和频率 信息发送单元 42, 用于将所迷 MBMS业务信息、所述时间资源和所述频 率资源的信息通过 MCCH发送给所述组播单频网中的基站。
所述消息获取单元 40包括:
接收单元, 用于接收核心网设备发来的 MBMS会话开始消息; 提取单元, 用于提取所述 MBMS会话开始消息中携带的 MBMS业务信 所述消息获取单元 40包括:
存储单元, 用于保存配置的 MCCH配置信息;
查找单元, 用于从所述存储单元中查找到 MBMS业 ^(言息。 所迷资源确定单元 41包括:
确定单元, 用于根据所述 MBMS业务信息所携带的数据量确定发送所述 MBMS业务信息所需的子帧数目;
选取单元, 用于从当前可用于 MCCH控制信息传输的子帧中选取所述子 帧数目个子帧,将所选取的子帧确定为承栽所述 MBMS业务信息的时间资源; 或者, 从当前可用于 MCCH控制信息传输的子帧中选取一个子帧作为起始子 帧, 将所选取的起始子帧的子帧号和该子帧所在无线帧的帧号、 以及所述子 帧数目确定为承栽 MBMS业务信息的时间资源。
所迷信息发送单元 42还用于:
将 MCCH调度重复周期的信息和 /或 MCCH消息调制模式的信息发送给 所述基站。
参见图 5, 本发明实施例还提供一种基站, 可以应用于信道同步系统中, 该基站包括:
信息接收单元 50,用于接收组播单频网中的网络设备发来的 MBMS业务 信息和承载所迷 MBMS业务信息的时间资源和频率资源的信息;
消息发送单元 51, 用于利用所述时间资源和所述频率资源向终端发送所 述 MBMS业^ ί言息。
所述信息接收单元 50还用于: 接收所述网络设备发来的 MCCH调度重 复周期的信息; 接收所述网络设备再次发来的 MBMS业务信息和时间资源信 息; 所述消息发送单元 51还用于: 根据所述时间资源的信息选取距离当前时 间最近、 并且在所述 MCCH调度重复周期内的子帧, 并利用该子帧发送再次 接收到的 MBMS业务信息。
所述信息接收单元 50还用于: 接收所述网络设备发来的 MCCH消息调 制模式信息; 所述消息发送单元 51用于: 采用所述 MCCH消息调制模式向 终端发送所迷 MBMS业务信息。
需要说明的是, 本发明既可以应用于时分双工 (TDD ) 系统中, 也可以 应用于频分双工(FDD ) 系统中。 并且, 本发明中的网络设备除了可以是主 基站、 MCE、 O&M外, 还可以是其他与 MBSFN中基站存在通信接口的其他 任何网络设备。
综上, 本发明的有益效果包括:
本发明实施例提供的方案中, 由组播单频网中的一网络设备将 MBMS业 务信息和承载该 MBMS业务信息的资源信息发送给组播单频网中的基站, 各 基站利用该资源向终端发送 MBMS业务信息, 由于组播单频网中的基站均利 用网络设备通知的相同的资源发送相同的 MBMS业务信息, 因此, 可以实现 各基站同步发送 MCCH信息的目的。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种组播单频网中的信道同步方法, 其特征在于, 该方法包括: 所述组播单频网中的网络设备获取多媒体广播组播业务 MBMS 业务信 息, 并确定承栽所述 MBMS业务信息的时间资源和频率资源;
所述网络设备将所述 MBMS业务信息、 所述时间资源和所述频率资源的 信息发送给所述组播单频网中的基站;
所述组播单频网中的基站利用所述时间资源和所述频率资源通过 MBMS 点到多点控制信道 MCCH向终端发送所述 MBMS业务信息。
2、 如权利要求 1 所迷的方法, 其特征在于, 若所述网络设备为 MBMS 协调实体 MCE, 所述网络设备获取 MBMS业务信息包括:
所述 MCE接收核心网设备发来的 MBMS会话开始消息 , 提取该 MBMS 会话开始消息中携带的 MBMS业务信息;
所述网络设备将所述 MBMS业务信息、 所述时间资源和所述频率资源的 信息发送给所述组播单频网中的基站包括:
所述 MCE将所述 MBMS业务信息、 所述时间资源和所述频率资源的信 息发送给所述組播单频网中的所有基站。
3、 如权利要求 1所述的方法, 其特征在于, 若所述网络设备为所述组播 单频网中的主基站, 所述网络设备获取 MBMS业务信息包括:
所述主基站接收核心网设备发来的 MBMS会话开始消息,提取该 MBMS 会话开始消息中携带的 MBMS业务信息;
所述网络设备将所述 MBMS业务信息、 所述时间资源和所述频率资源的 信息发送给所述组播車频网中的基站包括:
所述主基站将所述 MBMS业务信息、 所述时间资源和所述频率资源的信 息发送给所述组播单频网中除所述主基站之外的其他基站。
4、 如权利要求 1所述的方法, 其特征在于, 若所述网络设备为操作管理 实体 0&M, 所述网络设备荻取 MBMS业务信息包括: 所述 O&M从保存的 MBMS配置信息中查找到 MBMS业务信息; 所述网络设备将所述 MBMS业务信息、 所述时间资源和所述频率资源的 信息发送给所述组播单频网中的基站包括:
所述 0&M将所述 MBMS业务信息、 所述时间资源和所述频率资源的信 息发送给所述组播单频网中的所有基站。
5、 如权利要求 1-4中任一所述的方法, 其特征在于, 所述确定承载所述 MBMS业务信息的时间资源包括:
所述网络设备根据所述 MBMS业务信息的数据量确定发送所述 MBMS 业务信息所需的子帧数目;
从当前可用于 MCCH控制信息传输的子帧中选取所述子帧数目个子帧 , 将所选取的子帧确定为承栽所述 MBMS业务信息的时间资源。
6、如权利要求 1-4中任一所述的方法,其特征在于, 该方法进一步包括: 所述网络设备将 MCCH调度重复周期的信息发送给所述基站;
所述基站在向终端发送所迷 MBMS业务信息之后 , 接收到所述网络设备 再次发来的 MBMS业务信息和时间资源的信息时, »据该时间资源的信息选 取距离当前时间最近、 并且在所述 MCCH调度重复周期内的时间资源, 并利 用该时间资源向终端发送再次接收到的 MBMS业务信息。
7、 如权利要求 1-4中任一所述的方法, 其特征在于, 在所迷基站利用所 述时间资源和所述频率资源通过 MCCH向终端发送所述 MBMS业务信息之 前, 该方法进一步包括:
所述网络设备确定 MCCH消息调制模式,并将该 MCCH消息调制模式的 信息发送给所述基站;
MBMS业务信息包括:
所迷基站采用所述 MCCH消息调制模式, 利用所述时间资源和所述频率 资源通过 MCCH向终端发送所述 MBMS业务信息。
8、 一种信道同步系统, 其特征在于, 该系统包括: 网络设备, 用于获取多媒体广播组播业务 MBMS业务信息, 并确定承载 所述 MBMS业务信息的时间资源和频率资源; 将所述 MBMS业务信息、 所 述时间资源和所述频率资源的信 发送给组播单频网中的基站;
基站, 用于利用所述时间资源和所述频率资源通过 MBMS点到多点控制 信道 MCCH向终端发送所述 MBMS业务信息。
9、 如权利要求 8所述的系统, 其特征在于, 所述网络设备还用于: 将 MCCH调度重复周期的信息发送给所述基站;
所述基站还用于:
在向终端发送所述 MBMS业务信息之后, 接收到所述网络设备再次发来 的 MBMS业务信息和时间资源的信息时, 根据所述时间资源的信息选取距离 当前时间最近、 并且在所述 MCCH调度重复周期内的子帧, 并利用该子帧向 终端发送再次接收到的 MBMS业务信息。
10、 如权利要求 8或 9所述的系统, 其特征在于, 所述网络设备还用于: 确定 MCCH消息调制模式,并将该 MCCH消息调制模式的信息发送给所 述基站
所述基站用于:
采用所述 MCCH消息调制模式向终端发送所述 MBMS业务信息。
11、 一种网络设备, 其特征在于, 该设备包括:
消息获取单元, 用于获取多媒体广播组播业务 MBMS业务信息; 资源确定单元, 用于确定承栽所述 MBMS业务信息的时间资源和频率资 源;
信息发送单元, 用于将所述 MBMS业务信息、 所述时间资源和所述频率 资源的信息通过 MBMS点到多点控制信道 MCCH发送给所述组播单频网中 的基站。
12、 如权利要求 11所述的网络设备, 其特征在于, 所述消息获取单元包 括:
接收单元, 用于接收核心网设备发来的 MBMS会话开始消息; 提取单元, 用于提取所述 MBMS会话开始消息中携带的 MBMS业务信
13、 如权利要求 11所述的网络设备, 其特征在于, 所述消息获取单元包 括: ·
存储单元, 用于保存配置的 MBMS配置信息;
查找单元, 用于从所述存储单元中查找到 MBMS业务信息。
14、如权利要求 11-13中任一所述的网络设备, 其特征在于, 所述资源确 定单元包括:
确定单元,用于根据所述 MBMS业务信息的数据量确定发送所述 MBMS 业务信息所需的子帧数目;
选取单元, 用于从当前可用于 MCCH控制信息传输的子帧中选取所述子 帧数目个子帧,将所选取的子帧确定为承载所述 MBMS业务信息的时间资源。
15、如权利要求 11-13中任一所述的网络设备, 其特征在于, 所述信息发 送单元还用于:
将 MCCH调度重复周期的信息和 /或 MCCH消息调制模式的信息发送给 所述基站。
16、 一种基站, 其特征在于, 该基站包括:
信息接收单元, 用于接收该基站所在组播单频网中的网络设备发来的多 媒体广播组播业务 MBMS业务信息和承栽所述 MBMS业务信息的时间资源 和频率资源的信息;
消息发送单元, 用于利用所述时间资源和所述频率资源通过 MBMS点到 多点控制信道 MCCH向终端发送所述 MBMS业务信息。
17、如权利要求 16所述的基站,其特征在于,所述信息接收单元还用于: 接收所述网络设备发来的 MCCH调度重复周期的信息; 接收所述网络设 备再次发来的 MBMS业务信息和时间资源的信息;
所述消息发送单元还用于:
根据所述时间资源的信息选取距离当前时间最近、 并且在所述 MCCH调 度重复周期内的子帧, 并利用该子帧发送再次接收到的 MBMS业务信息。
18、 如权利要求 16或 17所述的基站, 其特征在于, 所述信息接收单元 还用于:
接收所述网络设备发来的 MCCH消息调制模式信息;
所述消息发送单元用于:
采用所述 MCCH消息调制模式向终端发送所述 MBMS业务信息
PCT/CN2010/072717 2009-05-15 2010-05-13 组播单频网中的信道同步方法、系统及设备 WO2010130215A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10774556.4A EP2432256B1 (en) 2009-05-15 2010-05-13 Channel synchronization method, system and device in multicast broadcast single frequency network
US13/320,442 US8824350B2 (en) 2009-05-15 2010-05-13 Channel synchronization method, system and device in multicast broadcast single frequency network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009100842992A CN101888696B (zh) 2009-05-15 2009-05-15 组播单频网中的信道同步方法、系统及设备
CN200910084299.2 2009-05-15

Publications (1)

Publication Number Publication Date
WO2010130215A1 true WO2010130215A1 (zh) 2010-11-18

Family

ID=43074359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/072717 WO2010130215A1 (zh) 2009-05-15 2010-05-13 组播单频网中的信道同步方法、系统及设备

Country Status (4)

Country Link
US (1) US8824350B2 (zh)
EP (1) EP2432256B1 (zh)
CN (1) CN101888696B (zh)
WO (1) WO2010130215A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150146630A1 (en) * 2011-11-03 2015-05-28 Nokia Solutions and Netwoarks Oy Multi-Cell Transmissions

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2013074457A1 (en) * 2011-11-15 2013-05-23 Kyocera Corporation Handover management using a broadcast channel in a network having synchronized base stations
CN102638767B (zh) * 2012-03-14 2016-06-01 电信科学技术研究院 一种集群业务传输方法及装置
CN103402223A (zh) * 2013-06-28 2013-11-20 华为技术有限公司 业务处理方法和系统、基站
EP3113559B1 (en) * 2014-03-21 2023-07-26 Huawei Technologies Co., Ltd. Device and method for data transmission in direct communication
CN104980248A (zh) * 2014-04-08 2015-10-14 华为技术有限公司 信息传输方法、基站、用户设备及通信系统
US9717087B2 (en) * 2014-04-17 2017-07-25 Qualcomm Incorporated Techniques for transmitting data over an unlicensed radio frequency spectrum band in accordance with an agreement between operators
WO2016065631A1 (zh) * 2014-10-31 2016-05-06 华为技术有限公司 组通信方法和装置
CN110278607A (zh) * 2018-03-13 2019-09-24 中兴通讯股份有限公司 一种资源确定方法、装置和计算机可读存储介质
CN113015102A (zh) * 2019-12-18 2021-06-22 北京新岸线移动多媒体技术有限公司 一种实现区域性数据广播的方法及系统
CN113099533B (zh) * 2020-01-08 2023-08-18 中移雄安信息通信科技有限公司 Mbsfn子帧配置方法、网络侧设备、终端及存储介质
WO2021253255A1 (zh) * 2020-06-17 2021-12-23 海能达通信股份有限公司 用于广播多播的通信方法、系统及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1382329A (zh) * 1999-08-24 2002-11-27 罗克马诺尔研究有限公司 移动通信系统中使基站同步的方法
CN101043265A (zh) * 2007-04-27 2007-09-26 华为技术有限公司 一种实现多媒体广播和组播业务数据同步发送的方法

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101084131B1 (ko) * 2005-03-28 2011-11-17 엘지전자 주식회사 멀티미디어 방송/멀티캐스트 서비스를 위한 제어채널재설정 방법
WO2006104343A2 (en) * 2005-03-29 2006-10-05 Lg Electronics Inc. A method of transmitting and receiving control information for point-to-multipoint multimedia multicast service
EP1850616A1 (en) * 2006-04-28 2007-10-31 Nec Technologies (UK) Limited Method for optimizing the reading by a user equipment of MCCH (MBMS point-to-multipoint control channel) information
WO2008041928A1 (en) * 2006-10-03 2008-04-10 Telefonaktiebolaget Lm Ericsson (Publ) Method for transmission of mbms control information in a radio access network
US20080101270A1 (en) * 2006-10-10 2008-05-01 Nokia Corporation Enhanced multicast broadcast multimedia service
KR101455991B1 (ko) * 2007-01-31 2014-11-03 엘지전자 주식회사 멀티미디어 브로드캐스트/멀티캐스트 서비스에서의 시스템정보 수신 방법
CN101262635B (zh) * 2007-03-09 2010-09-29 中兴通讯股份有限公司 一种在多载波小区实现增强mbms业务的方法
CA2685340A1 (en) * 2007-04-27 2008-11-06 Interdigital Technology Corporation Method and apparatus of resource management for multimedia broadcast multicast services
WO2008132692A2 (en) * 2007-04-27 2008-11-06 Nokia Corporation Providing efficient control transmission for single frequency network-based broadcasting or multicasting (mbmsfn)
US20080274759A1 (en) * 2007-05-04 2008-11-06 Hongyuan Chen System and Method for Controlling Base Stations for Multimedia Broadcast Communications
US8670363B2 (en) * 2007-05-30 2014-03-11 Qualcomm Incorporated Method and apparatus for sending scheduling information for broadcast and multicast services in a cellular communication system
GB0711833D0 (en) * 2007-06-18 2007-07-25 Nokia Siemens Networks Oy A method for providing a plurality of services
US9374695B2 (en) * 2007-07-05 2016-06-21 Tcl Communication Technology Holdings Limited Mobile communications system, base station, and mobile terminal for distributing emergency messages
CN101340619B (zh) * 2007-07-05 2014-04-09 中国移动通信集团公司 使终端获知多媒体广播组播业务载频时隙配置的方法
CN101370239B (zh) * 2007-08-15 2011-09-28 上海贝尔阿尔卡特股份有限公司 越区切换方法和用户设备
US8532683B2 (en) * 2007-10-01 2013-09-10 Nokia Corporation Simple distributed coordination among cells to achieve efficient dynamic single-frequency network (SFN) operation
EP2046090A1 (en) * 2007-10-02 2009-04-08 Panasonic Corporation Management of session control signaling for multicast/broadcast services
EP2530858A3 (en) * 2007-10-25 2013-05-15 Telefonaktiebolaget L M Ericsson AB (Publ) A method of transmitting MBMS data in an e-utran system
CN103401668B (zh) * 2007-12-17 2016-12-28 Tcl通讯科技控股有限公司 移动通信系统
CN101911642A (zh) * 2008-02-04 2010-12-08 上海贝尔股份有限公司 对信令消息进行同步的方法和基站
CN101572859A (zh) * 2008-04-30 2009-11-04 中兴通讯股份有限公司 网元间公共控制消息的同步方法
US8891426B2 (en) * 2008-06-06 2014-11-18 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatuses relating to multimedia broadcast multicast services
CN101605041B (zh) * 2008-09-18 2011-04-06 华为技术有限公司 多播组播单频网资源配置方法、装置和系统
US8761813B2 (en) * 2008-11-26 2014-06-24 Alcatel Lucent Fast signaling services for E-UTRAN based wireless systems
BRPI0924055A2 (pt) * 2009-01-20 2016-01-26 Fujitsu Ltd sistema de comunicação de rádio
US8553726B2 (en) * 2009-04-23 2013-10-08 Lg Electronics Inc. Scheduling transmission of messages relating to multimedia broadcast/multicast service (MBMS)
US8989204B2 (en) * 2009-04-28 2015-03-24 Alcatel Lucent Communication method and device of broadcast and/or multicast in radio network
WO2011020027A1 (en) * 2009-08-14 2011-02-17 Interdigital Patent Holdings, Inc. Mcch notification scheduling and contents

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1382329A (zh) * 1999-08-24 2002-11-27 罗克马诺尔研究有限公司 移动通信系统中使基站同步的方法
CN101043265A (zh) * 2007-04-27 2007-09-26 华为技术有限公司 一种实现多媒体广播和组播业务数据同步发送的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2432256A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150146630A1 (en) * 2011-11-03 2015-05-28 Nokia Solutions and Netwoarks Oy Multi-Cell Transmissions
US9609522B2 (en) * 2011-11-03 2017-03-28 Nokia Solutions And Networks Oy Multi-cell transmissions

Also Published As

Publication number Publication date
EP2432256A1 (en) 2012-03-21
US20120134314A1 (en) 2012-05-31
CN101888696A (zh) 2010-11-17
EP2432256A4 (en) 2012-04-04
CN101888696B (zh) 2012-08-15
US8824350B2 (en) 2014-09-02
EP2432256B1 (en) 2015-09-30

Similar Documents

Publication Publication Date Title
WO2010130215A1 (zh) 组播单频网中的信道同步方法、系统及设备
CN113271553B (zh) 用于处理组播/广播服务数据的方法及其设备
US9264249B2 (en) Extending cyclic prefix length in wireless communication network having mixed carrier
JP6675301B2 (ja) eMBMSを介したプッシュツートークまたはプッシュツーエブリシングのためのMBMSベアラエンハンスメント
WO2011082699A1 (zh) 确定组播单频网区域与业务区域映射关系的方法和系统
JP6049863B2 (ja) LTEにおける高速eMBMSチャネル切替えおよび追加の達成
WO2011018037A1 (zh) 一种配置mbms控制信息的方法、设备和系统
US20170325076A1 (en) Base station, user terminal and apparatus
WO2013135094A1 (zh) 一种集群业务传输方法及装置
US20140126454A1 (en) Embms support in heterogeneous network
US9479986B2 (en) Communication control method, base station, and user terminal
WO2011017949A1 (zh) 业务承载方法及装置、业务数据的接收方法及接收端
TWI419586B (zh) 管理多媒體廣播群播服務傳輸之方法及其相關通訊裝置
WO2015062501A1 (en) Adhoc group call communications over evolved multimedia broadcast multicast service
EP3289798B1 (en) Method and apparatus for group communication in wireless communication system
WO2012100727A1 (zh) 一种mbms业务数据的转发、发送方法、装置及系统
US9560677B2 (en) Communication control method, base station, and user terminal
WO2013131438A1 (zh) 一种集群传输通知、处理方法及装置
WO2010017660A1 (zh) 单小区传输模式中多基站协作广播多播业务的方法及装置
WO2014109857A1 (en) Systems and methods to optimize power consumption for lte embms
WO2011000265A1 (zh) 一种同步调度方法、装置和系统
WO2014153705A1 (zh) 新载波类型小区的业务处理方法、装置及通信系统
WO2012019542A1 (zh) Mbms业务接收状态的上报方法和设备
CN111447565B (zh) Mbms专用sib的发送方法、装置、系统及存储介质
WO2024048772A1 (ja) 通信方法及びユーザ装置

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: 10774556

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2568/MUMNP/2011

Country of ref document: IN

Ref document number: 2010774556

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 13320442

Country of ref document: US