WO2010118577A1 - 一种实现多媒体广播组播业务的移动性管理方法、设备和系统 - Google Patents

一种实现多媒体广播组播业务的移动性管理方法、设备和系统 Download PDF

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Publication number
WO2010118577A1
WO2010118577A1 PCT/CN2009/071306 CN2009071306W WO2010118577A1 WO 2010118577 A1 WO2010118577 A1 WO 2010118577A1 CN 2009071306 W CN2009071306 W CN 2009071306W WO 2010118577 A1 WO2010118577 A1 WO 2010118577A1
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WIPO (PCT)
Prior art keywords
mbsfn
mbms
mobility management
stc
information
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PCT/CN2009/071306
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English (en)
French (fr)
Inventor
朱莉
王燚
黄飞
高秀娟
李铕
Original Assignee
深圳华为通信技术有限公司
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.)
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Application filed by 深圳华为通信技术有限公司 filed Critical 深圳华为通信技术有限公司
Priority to CN200980119882.0A priority Critical patent/CN102396290B/zh
Priority to PCT/CN2009/071306 priority patent/WO2010118577A1/zh
Publication of WO2010118577A1 publication Critical patent/WO2010118577A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services

Definitions

  • Mobility management method device and system for realizing multimedia broadcast multicast service
  • Embodiments of the present invention relate to communication technologies, and in particular, to a mobility management method, device, and system for implementing a multimedia broadcast multicast service, and belong to the field of communication technologies.
  • MBMS Multimedia Broadcast Multicast Service
  • MBMS is a technology for transmitting data from a data source to multiple user equipments by sharing network resources. It can effectively utilize network resources while providing multimedia services, and achieve higher-speed multimedia service broadcast and multicast.
  • SFN Single Frequency Network
  • the embodiment of the invention provides a mobility management method, device and system for implementing MBMS of a multimedia broadcast multicast service, which is used to improve the usability of MBMS in user movement.
  • An embodiment of the present invention provides a mobility management method for implementing MBMS, including: Obtaining the division information of the physical area covered by the MBMS content in the MBMS intra-frequency zone MBSFN;
  • the MBSFN resource is allocated according to the division information of the physical area covered by the MBMS content in the MBSFN, and the MBSFN resource includes: a synchronous transmission cluster STC and a synchronous transmission cluster identifier information STC ID;
  • the mobility management method for implementing the MBMS obtains the division information of the physical area covered by the MBMS content in the MBSFN, and allocates the MBSFN resource according to the division information of the physical area, where the MBSFN resource includes: STC, STC ID Or, may further include any one of the following or a combination thereof: the service transmission area STA, the service transmission area identification information STA ID, the STA time slot resource, the STC isolation band; the MBSFN resource allocation information is sent; thereby determining the MBSFN service according to the MBMS content.
  • the area and the corresponding access method solve the problem that the allocation of multiple service areas in one MBMS content is complicated, and the access mode is complicated, which significantly improves the usability of MBMS in user mobility.
  • the embodiment of the invention provides a mobility management network element, including:
  • a first obtaining module configured to obtain, by using MBMS content in the MBMS in the same frequency region, partition information of the physical area covered by the MBMS content
  • a first allocation module configured to allocate MBSFN resources according to the division information of the physical area covered by the MBMS content in the MBSFN;
  • the first sending module is configured to send MBSFN resource allocation information.
  • the mobility management network element acquires the division information of the physical area covered by the MBMS content in the MBMS in the same frequency region MBSFN by using the first acquisition module, and is covered by the MBMS content in the MBSFN through the first allocation module.
  • the division information of the physical area, the MBSFN resource is allocated; the resource allocation information is sent by the first sending module; thereby determining the service area of the MBSFN and the corresponding access method according to the MBMS content, and solving the problem in one MBMS
  • the content contains multiple service area allocations and complex access methods, which significantly improves the usability of MBMS in user mobility.
  • An embodiment of the present invention provides a mobility management sending method for implementing MBMS, including: receiving MBSFN resource allocation information;
  • the MBMS signal is transmitted in accordance with the MBSFN resource allocation information.
  • the method for transmitting the mobility management of the MBMS receives the foregoing resource allocation information, and sends the MBMS signal according to the MBSFN resource allocation, where the resource includes: an STC, an STC ID, or may further include the following one or any combination thereof: STA, STAID, STA slot resource, STC isolation band; thus providing a basis for mobility management within MBSFN, significantly improving the usability of MBMS in user mobility.
  • An embodiment of the present invention provides a base station, including:
  • a second receiving module configured to receive resource allocation information
  • the first scrambling module is configured to scramble the MBMS signal in the STC by using the STC ID
  • the second sending module is configured to send the MBMS signal according to the MBSFN resource allocation information.
  • the base station provided by the embodiment of the present invention receives the resource allocation information by using the second receiving module; the first scrambling module performs STC ID scrambling on the MBMS signal; and the second sending module sends the MBMS signal according to the MBSFN resource allocation, where the foregoing resources include : STC, STC ID, or may further include one or any combination of the following: STA, STAID, STA slot resource, STC isolation band; thus providing a basis for mobility management within MBSFN, significantly improving MBMS in the user Availability in the move.
  • An embodiment of the present invention provides a user equipment UE, including:
  • a third receiving module configured to receive the foregoing MBMS signal
  • a first decapsulation module configured to parse the information about the resource allocation, and read the scrambled MBMS signal according to the parsing result
  • the UE provided by the embodiment of the present invention receives the foregoing MBMS signal by using a third receiving module;
  • the first decapsulation module parses the information about the resource allocation, and reads the scrambled MBMS signal according to the parsing result; thereby solving the problem that the user needs to perform a large number of operations during the movement, and significantly improving the MBMS in the user movement.
  • Availability
  • the embodiment of the invention provides a mobility management system, including a mobility management network element and a base station:
  • the mobility management network element is configured to obtain the division information of the physical area covered by the MBMS content in the MBMS intra-frequency zone MBSFN, and allocate the MBSFN resource according to the division information of the physical area covered by the MBMS content in the MBSFN, where the MBSFN resource includes The STC, the STC ID, or may further include one or any combination of the following: STA, STAID, STA slot resource, or STC isolation band; sending MBSFN resource allocation information;
  • the base station is configured to receive resource allocation information; and send the MBMS signal according to the MBSFN resource allocation.
  • the mobility management system allocates resources in the MBSFN through the mobility management network element, and sends the MBSFN resource allocation information; the base station receives the resource allocation information, and sends the MBMS signal according to the MBSFN resource allocation; thereby determining according to the MBMS content.
  • the MBSFN service area and the corresponding access method solve the problem that the allocation of multiple service areas in a MBMS content is complicated, and the access mode is complicated.
  • the UE needs to frequently change the area in the MBMS system, which significantly improves the MBMS. Availability in user movement.
  • FIG. 1 is a flowchart of a resource allocation embodiment of a mobility management method according to the present invention
  • FIG. 3 is a flowchart of an embodiment of an uplink management service of a mobility management method according to the present invention
  • Embodiment flow chart is a schematic structural diagram of a mobility management network element according to an embodiment of the present invention
  • FIG. 6 is a diagram of a mobility management network element when an MBSFN supports an uplink according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of an embodiment of a mobility management sending method according to the present invention.
  • FIG. 8a is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 8b is a schematic structural diagram of a second sending module of a base station including a first encapsulating module according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an embodiment of a mobility management system according to the present invention.
  • the inventor finds that the resource allocation of the MBSFN is not performed according to the broadcast multicast content area division in the prior art, and the same broadcast multicast content area may be divided into multiple service areas. And when broadcast multicast content increases, the maximum number of possible service areas increases exponentially. For example, when there are 2 broadcast multicast content, there will be at most 3 service areas; when there are 3 broadcast multicast contents, there will be at most 7 service areas; when there are n broadcast multicast contents The service area will have a maximum of 2 n -1. The average number of broadcast multicast content including the service area is . Then mobility management will face n
  • FIG. 1 is a flowchart of a resource allocation embodiment of a mobility management method according to the present invention. As shown in FIG. 1, the embodiment includes:
  • Step 11 Obtain the division information of the physical area covered by the MBMS content in the MBSFN.
  • Step 12 Allocate the MBSFN resource according to the division information of the physical area covered by the MBMS content, where the MBSFN resource includes: the service transmission area STC and the STC ID;
  • Step 13 Send MBSFN resource allocation information.
  • the MBMS can be based on an LTE network, a WCDMA network, a CDMA-2000 network, or a TD-SCDMA network.
  • the execution entity is a mobility management network element, and the mobility management network element may be a mobility management entity (MME) or a multimedia broadcast multicast service coordination entity (MCE), and the MME is generally used in cell-based mobility management.
  • MME mobility management entity
  • MCE multimedia broadcast multicast service coordination entity
  • the mobility management network element obtains the division information of the physical area covered by the MBMS content in the MBMS intra-frequency zone MBSFN; and allocates the MBSFN resource according to the division information of the physical area covered by the MBMS content in the MBSFN, where the MBSFN resource includes: Service transmission area STC, STC ID; Send multimedia broadcast multicast service resource allocation information.
  • the mobility management network element mainly plays the role of management area division.
  • the mobility management network element obtains the MBMS session control signaling from the MBMS gateway through the M3 interface, such as: MBMS content, and division information of the physical area covered by the MBMS content. After the MBMS session starts, the mobility management network element determines whether the MBMS needs to perform multi-cell transmission in the access network.
  • the mobility management network element After determining to perform multi-cell transmission, the mobility management network element associates the MBMS service content with the STC area, for example, corresponding one MBMS content with one STC, so that each MBMS content has only one corresponding STC area, or Multiple MBMS contents correspond to one STC, so that each MBMS content is included only in one corresponding STC area; each STC is associated with one STC ID, so that each STC has one and only one corresponding thereto
  • the STC ID is divided into different STCs, and the other radio resources of all base stations in the MBSFN area are managed by the M2 interface, including time, frequency, or modulation and coding management.
  • Coordination of synchronous transmission between multiple cells so that UEs in the same MBMS content can listen at the same time, in the same frequency, in the same STC, without performing cell reselection; and send control signaling through the M2 interface to instruct the base station to use STC ID to STC
  • the internal MBMS signal is scrambled to ensure stable transmission of MBMS content in the MBSFN, so that crosstalk between the STC external signal and the STC internal signal does not occur.
  • Mobility tube when no multi-cell transmission is required
  • the control network element divides the cell into an independent STC, and forwards the MBMS session control signaling to the base station through the M2 interface, and the base station determines the radio resource configuration by itself.
  • the service area of the MBSFN and the corresponding access method are determined according to the content of the MBMS, and the problem that the allocation of multiple service areas is complicated and the access mode is complicated in one MBMS content is solved, and the availability of the MBMS in the UE mobile is significantly improved. .
  • the foregoing MBSFN resource further includes one or any combination of the following: STA, STA ID, STA slot resource, and STC isolation band.
  • the mobility management network element associates one MBMS content with one STA, such that each MBMS content has one and only one STA area corresponding thereto, and each STA and one STAID Corresponding.
  • the UE searches for the target MBMS content by using the STA ID in the MBSFN, and obtains the MBMS content by descrambling the MBMS signal.
  • the UE can listen to the target MBMS content at the same time, the same frequency, the same STA, and the same STC. There is no need to perform cell reselection.
  • the mobility management network element associates different STA signals with different STA slot resources, so that each STA signal has one STA slot resource corresponding to each other, which ensures multiple Coordinated transmission of MBMS content so that there is no interference between different MBMS content.
  • the UE searches for the target MBMS content by using the STA ID in the MBSFN.
  • the UE can listen to the target MBMS content at the same time, the same frequency, and the same STA, without performing cell reselection, and avoiding from other STAs. interference.
  • the mobility management network element may also associate each STC with an STC isolation band, so that each STC has one and only one STC isolation band is wrapped, and is sent through the M2 interface.
  • the control signaling indicates that the base station in the STC isolation band transmits the MBMS content in a power-limited manner, or stops the MBMS, ensuring stable transmission of the MBMS content in the MBSFN, so that crosstalk does not occur between the STCs.
  • FIG. 3 is a flowchart of an embodiment of an uplink service of a mobility management method according to the present invention. As shown in FIG. 3, this embodiment includes:
  • Step 31 Receive report information of the UE in the MBSFN.
  • Step 32 If the number of registered users is less than a specific threshold, the base station in the MBSFN is instructed to change the sending mode.
  • This embodiment is applicable to uplink reception of MBMS, and is particularly suitable for receiving signals from a mobile UE.
  • the MBMS can be based on an LTE network, a WCDMA network, a CDMA-2000 network, or a TD-SCDMA network.
  • the execution entity is a mobility management network element, and the mobility management network element may be a mobility management entity MME or a multimedia broadcast multicast service coordination entity MCE.
  • the mobility management network element receives the reporting information of the UE in the MBSFN. If the number of registered users is less than a specific threshold, the base station in the MBSFN is instructed to change the sending mode.
  • the mobility management network element mainly plays a role in determining the transmission mode.
  • the reporting of information by the UE in the MBMS is an important feedback for the mobility management network element.
  • the reporting information includes: user identity, user capability information, and user requirement information.
  • the MBMS indicates that the base station in the MBSFN changes the transmission mode to adapt to the user's needs or achieve energy saving and emission reduction. Effect.
  • the mobility management network element automatically switches the broadcast MBMS content in the MBSFN to the multicast MBMS content; or sets the threshold m, when When the number of users in MBSFN is less than m
  • the mobility management network element automatically switches the multicast MBMS content in the MBSFN to the unicast MBMS content, or sets a specific threshold k.
  • the mobility management network element automatically The MBMS in the MBSFN is closed; or a specific threshold j is set.
  • the mobility management network element automatically re-executes the MBSFN resource allocation.
  • FIG. 4 is a flow chart of an embodiment of an uplink handover of a mobility management method according to the present invention. As shown in FIG. 4, this embodiment includes:
  • Step 41 Obtain an RRC connection status of the uplink, and its status feature is:
  • the base station can configure the UE discontinuous reception mode so that the UE enters the power saving mode
  • the base station does not have RRC context information
  • the UE has an RRC connection
  • step 42 If it is RRC - Connected, go to step 42. If it is RRC - Idle, the UE is not sending uplink service, so there is no need to perform cell handover.
  • Step 42 Receive the same frequency measurement result.
  • the mobility management function entity determines whether to switch according to the UE's intra-frequency measurement result. When the above measurement exceeds the threshold, go to step 43. When the difference between the new cell signal and the original cell signal is lower than the threshold, no cell handover is required;
  • Step 43 According to the above-mentioned intra-frequency measurement result, if a handover is required, a handover command is sent.
  • the base station is commanded to initiate a handover request.
  • the target side base station cell prepares radio resources, and sends a handover command to
  • the UE performs handover, synchronizes to the target side cell, and continues uplink transmission.
  • the MBMS can be based on an LTE network, a WCDMA network, a CDMA-2000 network, or a TD-SCDMA network.
  • the execution entity is a mobility management network element, and the mobility management network element may be a mobility management entity (MME) or a multimedia broadcast multicast service coordination entity (MCE).
  • MME mobility management entity
  • MCE multimedia broadcast multicast service coordination entity
  • the mobility management network element acquires an RRC connection status of the uplink; receives the same-frequency measurement result of the UE; and the mobility management function entity determines whether to perform handover according to the same-frequency measurement result of the UE, for example, by setting a threshold value, The measurement result is compared with a threshold value; if a handover is required, the base station is instructed to initiate a handover request.
  • the mobility management network element mainly plays a role of determining whether the cell is switched.
  • the MBMS system there are fewer types of downlink transmissions and more receivers. Therefore, a large range of STAs are used as granularity for mobility management, and time and frequency resources can be effectively utilized, but in the uplink scenario. Among them, there are many types of content, and the receiver only has a base station. Therefore, it is necessary to use a small-scale cell as a granularity for mobility management. Through cell-based uplink mobility management, the availability of uplink transmissions in UE mobility is guaranteed.
  • FIG. 5 is a schematic structural diagram of a mobility management network element according to an embodiment of the present invention.
  • the mobility management network element in this embodiment includes: a first obtaining module 51, a first allocation module 52, and a first sending module 53. .
  • the first obtaining module 51 is configured to obtain, according to the physical area, the division information of the physical area covered by the MBMS content in the MBSFN of the multimedia broadcast multicast service;
  • the first allocation module 52 is configured to allocate MBSFN resources according to the division information of the physical area covered by the MBMS content in the MBSFN;
  • the first sending module 53 is configured to send MBSFN resource allocation information.
  • the mobility management network element in the embodiment of the present invention is used for the resource allocation embodiment shown in FIG. 1, and its features and uses are not described herein again.
  • FIG. 6 is a schematic structural diagram of a mobility management network element when an MBSFN supports an uplink according to an embodiment of the present invention. As shown in FIG. 6, if the MBSFN supports an uplink, the mobility management network element in this embodiment further includes: The module 61, the first counting module 62, and the first control module 63.
  • the first receiving module 61 is configured to receive report information of the UE in the MBSFN;
  • the first control module 62 if the number of registered users is less than a specific threshold, instructs the base station in the MBSFN to change the transmission mode.
  • the mobility management network element in the embodiment of the present invention is an embodiment for the uplink service shown in FIG. 3, and its features and uses are not described herein.
  • FIG. 7 is a flowchart of an embodiment of a mobility management sending method according to the present invention. As shown in FIG. 7, the embodiment includes:
  • Step 71 Receive resource allocation information.
  • Step 72 Send the MBMS signal according to the MBSFN resource allocation.
  • This embodiment is applicable to the transmission of MBMS, and is particularly suitable for transmitting an MBMS signal to a UE in motion.
  • the MBMS can be based on an LTE network, a WCDMA network, a CDMA-2000 network, or a TD-SCDMA network.
  • the execution subject of this embodiment is a base station.
  • the base station in this embodiment receives the resource allocation information; and transmits the MBMS signal according to the MBSFN resource allocation.
  • MBSFN resources include: STC, STC ID. It may also include one or any combination of the following: STA, STAID, STA slot resource, STC isolation band.
  • the base station mainly plays the role of performing the resource allocation result of the mobility management network element MBSFN.
  • the base station receives the MBSFN resource allocation information from the mobility management network element.
  • the MBSFN resource allocation information includes the STC and the STC ID
  • the base station acquires its own STC or STC ID, scrambles the MBMS signal according to the STC ID;
  • the base station acquires its own STA or STA ID, and sends the corresponding MBMS according to the STA or STA ID.
  • the base station When the resource allocation information further includes the STA slot resource, the base station acquires its own STA slot resource, and sends the corresponding MBMS content according to the STA slot resource; when the resource allocation information further includes the STC isolation band, the base station acquires itself.
  • the STC isolation band if the base station belongs to the STC isolation band, transmits the MBMS content in a power limited manner, or stops transmitting the MBMS, and rejects the MBMS connection request of all UEs.
  • the base station places the MBSFN resource allocation information at the forefront of the MBMS signal when the MBMS signal is transmitted.
  • the UE After receiving the MBMS signal, the UE first parses the top-end MBSFN resource allocation information, and then correctly parses the MBMS content that it wants to receive in time. If the resource allocation changes, each base station sends new MBSFN resource allocation information, and the UE can immediately correctly parse the MBMS content that is to be received according to the new MBSFN resource allocation information, thereby facilitating service expansion.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 8a, the base station of this embodiment includes: a second receiving module 81, a first scrambling module 82, and a second sending module 83.
  • a second receiving module 81 configured to receive MBSFN resource allocation information
  • a first scrambling module 82 configured to scramble the MBMS signal in the STC by using the STC ID
  • a second sending module 83 configured to send the MBMS signal
  • the second sending module 83 may further include: a first encapsulating module 84 to further improve the availability of the MBMS in the mobile, the flexibility of the system resource allocation, and the availability of the MBMS when the system resources are reallocated, as shown in FIG. 8b. .
  • the first encapsulating module 84 is configured to place the information about the resource allocation described above at the forefront of the MBMS signal.
  • the mobility management network element in this embodiment is used in the embodiment of the transmission method shown in FIG. 7, and its features and uses are not described again.
  • FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 9, the UE in this embodiment is shown in FIG. The method includes: a third receiving module 91, and a first decapsulation module 92.
  • a third receiving module 91 configured to receive the MBMS signal
  • the first decapsulation module 92 is configured to parse the MBSFN resource allocation information, and read the scrambled MBMS signal according to the parsing result.
  • the UE further includes:
  • the third sending module 93 is configured to send the reporting information of the UE.
  • the MBMS can be based on an LTE network, a WCDMA network, a CDMA-2000 network, or a TD-SCDMA network.
  • the UE mainly plays the role of receiving the MBMS content according to the resource allocation of the mobile management network element.
  • FIG. 10 is a schematic structural diagram of an embodiment of a mobility management system according to the present invention, including a mobility management network element 101 and a base station 102.
  • the mobility control network 101 is configured to obtain the division information of the physical area covered by the MBMS content in the MBSFN in the MBSFN of the multimedia broadcast multicast service; and allocate the MBSFN resource according to the division information of the physical area covered by the MBMS content in the MBSFN.
  • the foregoing MBSFN resources include: an STC and an STC ID, and the foregoing MBSFN resources may further include one or any combination of the following: an STC, an STC ID, a STA, a STAID, a STA slot resource, an STC isolation band, and an MBSFN resource allocation information;
  • the base station 102 is configured to receive MBSFN resource allocation information; and send the MBMS signal according to the MBSFN resource allocation.
  • the mobility management network element 101 is further configured to: receive the reporting information of the UE in the MBSFN; if the number of registered users is less than a specific threshold, instruct the base station in the MBSFN to change the sending manner.
  • the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described above in accordance with various embodiments of the present invention.
  • a non-volatile storage medium which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.
  • the instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described above in accordance with various embodiments of the present invention.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Description

一种实现多媒体广播组播业务的移动性管理方法、 设备和系统 技术领域
本发明实施例涉及通信技术 , 特别是涉及一种实现多媒体广播组播业 务的移动性管理方法、 设备和系统, 属于通信技术领域。
发明背景
随着时代的发展, 用户对移动通信业务类型的需求越来越多样化。
MBMS ( Multimedia Broadcast Multicast Service, 多媒体广播组播业务)正 是其中一种很有市场前景的业务。 MBMS是一种通过共享网络资源从一个 数据源向多个用户设备传送数据的技术, 在提供多媒体业务的同时能有效 地利用网络资源, 实现较高速率的多媒体业务广播和组播。
随着频率资源的日趋紧张, SFN ( Single Frequency Network, 单频网) 无论是在数字电视地面广播领域中还是移动通信技术中都开始受到越来越 多的重视。 所谓 SFN, 即在一定的地理区域内若干部发射机同时在同一个 频段上发射同样的信号, 以实现对该区域的可靠覆盖。 在 MBMS中实现的 单频网即是在若干基站同时在同一频率上发射相同的信号。 SFN带来的最 大好处, 是频谱效率的提高。
将 SFN引入 MBMS中,使得 MBMS的性能在物理层得到了显著的提 高。但是现有技术中,用户在 MBSFN( Multimedia Broadcast multicast service Single Frequency Network, MBMS同频网) 中移动时, 需要频繁地选择服 务区域, 导致服务中断和信号不稳定。
发明内容
本发明实施例提供了一种实现多媒体广播组播业务 MBMS 的移动性 管理方法、 设备和系统, 用以提高 MBMS在用户移动中的可用性。
本发明实施例提供了一种实现 MBMS的移动性管理方法, 包括: 获取 MBMS同频区 MBSFN内 MBMS内容所覆盖的物理区域的划分 信息;
根据上述 MBSFN内 MBMS内容所覆盖的物理区域的划分信息,分配 MBSFN资源, 上述 MBSFN资源包括: 同步传输簇 STC、 同步传输簇标识 信息 STC ID;
发送 MBSFN资源分配信息。
本发明实施例提供的实现 MBMS 的移动性管理方法, 通过获取 MBSFN内 MBMS内容所覆盖的物理区域的划分信息; 按照这一物理区域 的划分信息分配 MBSFN资源, 上述 MBSFN资源包括: STC、 STC ID, 或 者可以进一步包括以下任意一种或其组合: 服务传输区 STA、 服务传输区 标识信息 STA ID、 STA时隙资源、 STC隔离带; 发送 MBSFN资源分配信 息; 从而按照 MBMS内容确定了 MBSFN的服务区域和相应的接入方法, 解决了在一项 MBMS内容包含多个服务区域分配, 接入方式复杂的问题, 显著提高了 MBMS在用户移动中的可用性。
本发明实施例提供了一种移动性管控网元, 包括:
第一获取模块, 用于获取 MBMS同频区 MBSFN内 MBMS内容所覆 盖的物理区域的划分信息;
第一分配模块,用于根据上述 MBSFN内 MBMS内容所覆盖的物理区 域的划分信息, 分配 MBSFN资源;
第一发送模块, 用于发送 MBSFN资源分配信息。
本发明实施例提供的移动性管控网元, 通过第一获取模块获取 MBMS 同频区 MBSFN内 MBMS内容所覆盖的物理区域的划分信息; 经过第一分 配模块, 根据上述 MBSFN内 MBMS内容所覆盖的物理区域的划分信息, 分配 MBSFN资源; 由第一发送模块发送资源分配信息; 从而按照 MBMS 内容确定了 MBSFN的服务区域和相应的接入方法, 解决了在一项 MBMS 内容包含多个服务区域分配、 接入方式复杂的问题, 显著提高了 MBMS在 用户移动中的可用性。
本发明实施例提供了一种实现 MBMS的移动性管理发送方法, 包括: 接收 MBSFN资源分配信息;
按照 MBSFN资源分配信息发送 MBMS信号。
本发明实施例提供的实现 MBMS 的移动性管理发送方法通过接收上 述资源分配信息;按照 MBSFN资源分配发送 MBMS信号,上述资源包括: STC、 STC ID,或者进一步可以包括以下一种或其任意组合: STA、 STAID, STA时隙资源、 STC隔离带; 从而为 MBSFN内的移动性管理提供了基础, 显著提高了 MBMS在用户移动中的可用性。
本发明实施例提供了一种基站, 包括:
第二接收模块, 用于接收资源分配信息;
第一加扰模块, 用于用 STC ID对 STC内的 MBMS信号加扰; 第二发送模块, 用于按照 MBSFN资源分配信息发送 MBMS信号。 本发明实施例提供的基站,通过第二接收模块接收上述资源分配信息; 第一加扰模块对 MBMS信号进行 STC ID加扰; 再由第二发送模块按照 MBSFN资源分配发送 MBMS信号, 上述资源包括: STC、 STC ID, 或者 可以进一步包括以下的一种或任意种组合: STA、 STAID, STA时隙资源、 STC 隔离带; 从而为 MBSFN 内的移动性管理提供了基础, 显著提高了 MBMS在用户移动中的可用性。
本发明实施例提供了一种用户设备 UE, 包括:
第三接收模块, 用于接收上述 MBMS信号;
第一解封装模块, 用于解析上述资源分配的信息, 和按照解析结果读 取上述加扰后的 MBMS信号;
本发明实施例提供的 UE通过第三接收模块接收上述 MBMS信号; 经 过第一解封装模块, 解析上述资源分配的信息, 和按照解析结果读取上述 加扰后的 MBMS信号;从而解决了用户在移动中需要执行大量操作的问题, 显著提高了 MBMS在用户移动中的可用性。
本发明实施例提供了一种移动性管理系统, 包括移动性管控网元、 基 站:
上述移动性管控网元用于获取 MBMS同频区 MBSFN内 MBMS内容 所覆盖的物理区域的划分信息; 根据上述 MBSFN内 MBMS内容所覆盖的 物理区域的划分信息, 分配 MBSFN资源, 所述 MBSFN资源包括 STC、 STC ID, 或者可以进一步包括以下一项或其任意组合: STA、 STAID, STA 时隙资源、 或 STC隔离带; 发送 MBSFN资源分配信息;
上述基站用于接收资源分配信息; 按照 MBSFN资源分配发送 MBMS 信号。
本发明实施例提供的移动性管理系统, 通过移动性管控网元, 分配 MBSFN内的资源,发送 MBSFN资源分配信息; 由基站接收资源分配信息, 按照 MBSFN 资源分配发送 MBMS信号; 从而按照 MBMS 内容确定了 MBSFN的服务区域和相应的接入方法, 解决了在一项 MBMS内容包含多 个服务区域分配、 接入方式复杂的问题, UE在 MBMS 系统中移动需要频 繁变换区域的问题, 显著提高了 MBMS在用户移动中的可用性。
附图说明
图 1为本发明移动性管理方法的资源分配实施例流程图; 图 3为本发明移动性管理方法上行链路业务的实施例流程图; 图 4为本发明移动性管理方法上行链路切换的实施例流程图; 图 5为本发明实施例移动性管控网元的结构示意图;
图 6为本发明实施例 MBSFN支持上行链路时, 移动性管控网元的结 构示意图;
图 7为本发明移动性管理发送方法实施例的流程图;
图 8a为本发明实施例基站的结构示意图;
图 8b 为本发明实施例基站第二发送模块包括第一封装模块时的结构 示意图;
图 9为本发明实施例 UE的结构示意图;
图 10为本发明移动性管理系统的实施例的结构示意图。
具体实施方式
下面通过附图和实施例, 对本发明的技术方案做进一步的详细描述。 发明人在实现本发明实施例的过程中, 发现在现有技术中 MBSFN的 资源分配不是按照广播组播内容区域划分来进行的, 同一广播组播内容区 域有可能被划分成多个服务区域。 而且当广播组播内容增加的时候, 服务 区域有可能的最大数量呈指数增长。 比如, 当有 2个广播组播内容的时候, 服务区域最多会有 3个; 当有 3个广播组播内容的时候, 服务区域最多会 有 7个; 当有 n个广播组播内容的时候, 服务区域最多会有 2n-l个。 平均 一项广播组播内容包含服务区域的个数为 。 那么移动性管理就会面临 n
^ zi个小区之间的切换。导致 UE在 MBMS系统中移动需要频繁变换区域。 n
图 1为本发明移动性管理方法的资源分配实施例流程图,如图 1所示, 本实施例包括:
步骤 11: 获取 MBSFN内 MBMS内容所覆盖的物理区域的划分信息; 步骤 12: 根据上述 MBMS 内容所覆盖的物理区域的划分信息, 分配 MBSFN资源, 上述 MBSFN资源包括: 服务传输区 STC 、 STC ID;
步骤 13: 发送 MBSFN资源分配信息。
本实施例适用于 MBMS的发送,尤其适合向移动中的 UE发送 MBMS 信号。 该 MBMS可以基于 LTE网络, WCDMA网络, CDMA-2000网络, 或者 TD-SCDMA网络。 本实施例执行主体为移动性管控网元, 移动性管控 网元可以是移动性管理实体 (MME ) 或者多媒体广播组播业务协调实体 ( MCE ), MME 一般用于基于小区的移动性管理中, MCE —般应用在 MBMS移动性管理中。
本实施例中移动性管控网元获取 MBMS同频区 MBSFN内 MBMS内 容所覆盖的物理区域的划分信息; 根据上述 MBSFN内 MBMS内容所覆盖 的物理区域的划分信息, 分配 MBSFN资源, 上述 MBSFN资源包括: 服务 传输区 STC、 STC ID; 发送多媒体广播组播业务资源分配信息。
本实施例中移动性管控网元主要起到管理区域划分的作用。 移动性管 控网元通过 M3接口获取来自 MBMS网关的 MBMS会话控制信令, 如: MBMS内容, MBMS内容所覆盖的物理区域的划分信息。 MBMS会话开始 后, 移动性管控网元判断该 MBMS在接入网中是否需要进行多小区传输。 当决定进行多小区传输后,移动性管控网元将 MBMS服务内容与 STC区域 对应, 例如, 将一个 MBMS内容与一个 STC对应, 使得每个 MBMS内容 都只有一个与之对应的 STC区域, 或者将多个 MBMS内容与一个 STC对 应,使得每个 MBMS内容都只包含在一个与之对应的 STC区域内; 将每个 STC与一个 STC ID相对应,使得每个 STC都有且只有一个与之对应的 STC ID;再将 MBSFN内的基站划分到不同的 STC中,并通过 M2接口对 MBSFN 区域内所有基站的其他无线资源进行统一管理, 包括对时间、 频率、 或调 制和编码的管理, 来保证多个小区间同步传输的协调, 使得同一 MBMS内 容下的 UE可以在同一时间, 同一频率, 同一 STC内收听, 无须执行小区 重选;并通过 M2接口发送控制信令指示基站用 STC ID对 STC内的 MBMS 信号加扰,保证了 MBSFN中 MBMS内容的稳定传输,使得 STC外部信号 与 STC内部信号之间不会发生串扰。 当无须进行多小区传输时, 移动性管 控网元将该小区划分为一个独立的 STC, 并将 MBMS会话控制信令通过 M2接口转发至基站, 由基站自行决定无线资源配置。
本实施例按照 MBMS内容确定了 MBSFN的服务区域和相应的接入方 法, 解决了在一项 MBMS内容包含多个服务区域分配、 接入方式复杂的问 题, 显著提高了 MBMS在 UE移动中的可用性。
在本实施例中, 上述 MBSFN 资源还包括以下一项或其任意组合: STA、 STA ID、 STA时隙资源、 STC隔离带。
当 STC中包含多个 MBMS内容时,移动性管控网元将一个 MBMS内 容与一个 STA相对应, 使得每个 MBMS 内容都有且只有一个与之对应的 STA区域,并将每个 STA与一个 STAID相对应。 UE在 MBSFN中通过 STA ID寻找目标 MBMS内容,通过对 MBMS信号解扰获取 MBMS内容, 同时 UE在同一 MBMS内容下时, 可以在同一时间, 同一频率, 同一 STA, 同 一 STC内收听目标 MBMS内容, 无须执行小区重选。
当 MBSFN中不同的 MBMS内容有交叉时,移动性管控网元将不同的 STA信号与不同的 STA时隙资源相对应,使得每一个 STA信号有且只有一 个 STA 时隙资源对应, 保证了多个 MBMS 内容的协调传输, 使得不同 MBMS 内容之间不会发生干扰。 UE在 MBSFN中通过 STA ID寻找目标 MBMS内容, 同时 UE在同一 MBMS内容下时, 可以在同一时间, 同一频 率, 同一 STA内收听目标 MBMS内容, 无须执行小区重选, 并且避免了来 自其他 STA的干扰。
当 MBSFN中的 STC之间有可能发生信号干扰时, 移动性管控网元还 可以将每一个 STC与一个 STC隔离带相对应, 使得每一个 STC有且只有 一个 STC隔离带环绕, 通过 M2接口发送控制信令指示 STC隔离带内的基 站釆用功率受限的方式发送 MBMS内容,或者停止 MBMS,保证了 MBSFN 中 MBMS内容的稳定传输, 使得 STC之间不会发生串扰。 UE在 MBSFN 中通过 STAID寻找目标 MBMS内容, 同时 UE在同一 MBMS内容下时, 可以在同一时间,同一频率,同一 STA,同一 STC内收听目标 MBMS内容, 无须执行小区重选, 并且避免了来自其他 STA, 其他 STC, 以及外部信号 的干扰。 图 3为本发明移动性管理方法上行链路业务的实施例流程图, 如图 3 所示, 本实施例包括:
步骤 31 , 接收 MBSFN内 UE的上报信息;
步骤 32, 如果注册用户数目少于特定的门限值, 则指示 MBSFN内的 基站改变发送方式。
本实施例适用于 MBMS的上行链路接收, 尤其适合从移动中的 UE接 收信号。该 MBMS可以基于 LTE网络, WCDMA网络, CDMA-2000网络, 或者 TD-SCDMA网络。 本实施例执行主体为移动性管控网元, 移动性管控 网元可以是移动性管理实体 MME 或者多媒体广播组播业务协调实体 MCE。
本实施例中移动性管控网元接收 MBSFN内 UE的上报信息; 如果注 册用户数目少于特定的门限值, 则指示 MBSFN内的基站改变发送方式。
本实施例中移动性管控网元主要起到决定发送方式的作用。 在 MBMS 中 UE上报信息对于移动性管控网元, 是重要的反馈资料, 其中, 上报信息 包括: 用户的身份, 用户能力信息, 用户需求信息。 由于 MBMS越来越强 调上行链路的应用, 在这种场景下, 本实施例通过获取 MBSFN内 UE的上 报信息, 指示 MBSFN内的基站改变发送方式, 以适应用户的需求, 或达到 节能减排的效果。 例如: 设置特定的门限值为 n, 当 MBSFN内用户数量小 于 n的时候, 移动性管控网元自动将 MBSFN内的广播的 MBMS内容切换 为组播 MBMS内容; 或设置门限值 m, 当 MBSFN内用户数量小于 m的时 候, 移动性管控网元自动将 MBSFN 内的组播的 MBMS 内容切换为单播 MBMS内容;或设置特定的门限值 k,当 MBSFN内用户数量小于 k的时候, 移动性管控网元自动将 MBSFN内的 MBMS关闭; 或设置特定的门限值 j , 当 MBSFN内用户数量小于 j的时候,移动性管控网元自动重新执行 MBSFN 资源分配。
本实施例在用户数量不同的情况下, 釆用不同的发送方式, 不仅节约 了无线通信资源, 緩解信道容量的压力, 减少基站的运行负荷, 同时更重 要的是可起到节约能源, 减少排放的作用。
图 4为本发明移动性管理方法上行链路切换的实施例流程图。 如图 4 所示, 本实施例包括:
步骤 41 : 获取上行链路的 RRC连接状态, 其状态特征为:
RRC ( Radio Resource Control, 无线资源控制) 空闲状态 RRC - Idle:
• 基站可以配置 UE不连续接收方式从而 UE进入省电模式;
• 基站没有 RRC的上下文信息;
• UE执行位置更新;
RRC连接状态 RRC - Connected:
• UE有一个 RRC连接;
• 基站内有 RRC上下文, 且知道 UE所在小区;
• 基站和 UE之间可以发送和接收数据;
若为 RRC - Connected则执行步骤 42, 若为 RRC - Idle则 UE没有在 发送上行服务, 因此无须进行小区切换;
步骤 42: 接收同频测量结果。 移动管理功能实体根据 UE同频测量结 果决定是否要进行切换。 当上述测量结果超过门限值时, 执行步骤 43。 当 新小区信号与原小区信号之差低于门限值时, 则无须进行小区切换;
步骤 43: 根据上述同频测量结果, 如果需要切换, 则发送切换命令。 命令基站发起切换请求。 目标侧基站小区准备无线资源, 发送切换命令到
UE。 UE执行切换, 同步到目标侧小区, 继续进行上行链路传输。
本实施例适用于 MBMS的上行链路接收, 尤其适合从移动中的 UE接 收信号。该 MBMS可以基于 LTE网络, WCDMA网络, CDMA-2000网络, 或者 TD-SCDMA网络。 本实施例执行主体为移动性管控网元, 移动性管控 网元可以是移动性管理实体 (MME ) 或者多媒体广播组播业务协调实体 ( MCE )。
本实施例中移动性管控网元获取上行链路的 RRC连接状态; 接收 UE 同频测量结果;移动管理功能实体根据 UE同频测量结果决定是否要进行切 换, 例如可通过设置门限值的方式, 将测量结果与门限值进行比较; 如果 需要进行切换, 命令基站发起切换请求。
本实施例中移动性管控网元主要起到决定小区是否切换的作用。 在 MBMS 系统中, 下行链路传输的内容种类较少, 而接收者多, 因此釆用大 范围的 STA作为粒度进行移动性管理, 时间、频率资源能够得到有效利用, 但在上行链路的场景中, 内容种类多, 接收者只有基站, 因此要釆用小范 围的小区作为粒度进行移动性管理。 通过基于小区的上行链路移动性管理, 保证了上行传输在 UE移动中的可用性。
图 5为本发明实施例移动性管控网元的结构示意图, 如图 5所示, 本 实施例移动性管控网元包括: 第一获取模块 51 , 第一分配模块 52、 和第一 发送模块 53。
第一获取模块 51 , 用于获取多媒体广播组播业务同频区 MBSFN 内 MBMS内容所覆盖的物理区域的划分信息;
第一分配模块 52,用于根据上述 MBSFN内 MBMS内容所覆盖的物理 区域的划分信息, 分配 MBSFN资源;
第一发送模块 53 , 用于发送 MBSFN资源分配信息。 本发明实施例中移动性管控网元为用于图 1所示的资源分配实施例, 其特征以及用途不再赘述。
图 6为本发明实施例 MBSFN支持上行链路时, 移动性管控网元的结 构示意图, 如图 6所示, 若 MBSFN支持上行链路, 本实施例移动性管控网 元还包括: 第一接收模块 61 , 第一记数模块 62、 和第一控制模块 63。
第一接收模块 61 , 用于接收 MBSFN内 UE的上报信息;
第一控制模块 62 , 如果注册用户数目少于特定的门限值, 则指示 MBSFN内的基站改变发送方式。
本发明实施例中移动性管控网元为用于图 3所示的上行链路业务的实 施例, 其特征以及用途不再赘述。
图 7为本发明移动性管理发送方法实施例的流程图, 如图 7所示, 本 实施例包括:
步骤 71 : 接收资源分配信息;
步骤 72: 按照 MBSFN资源分配发送 MBMS信号。
本实施例适用于 MBMS的发送,尤其适合向移动中的 UE发送 MBMS 信号。 该 MBMS可以基于 LTE网络, WCDMA网络, CDMA-2000网络, 或者 TD-SCDMA网络。 本实施例执行主体为基站。
本实施例中的基站接收资源分配信息; 按照 MBSFN 资源分配发送 MBMS信号。 MBSFN资源包括: STC, STC ID。 还可以包括以下一项或其 任意组合: STA、 STAID, STA时隙资源、 STC隔离带。
本实施例中基站主要起到执行移动性管控网元 MBSFN资源分配结果 的作用。基站接收来自移动性管控网元的 MBSFN资源分配信息,当 MBSFN 资源分配信息中包括 STC, STC ID时,基站获取自己的 STC或 STC ID, 按 照 STC ID加扰 MBMS信号; 当资源分配信息中还包括 STA或 STAID时, 基站获取自己的 STA或 STA ID, 按照 STA或 STA ID发送相应的 MBMS 内容; 当资源分配信息中还包括 STA时隙资源时, 基站获取自己的 STA时 隙资源,按照 STA时隙资源发送相应的 MBMS内容; 当资源分配信息中还 包括 STC隔离带时, 基站获取自己的 STC隔离带, 若基站属于 STC隔离 带, 则釆用功率受限的方式发送 MBMS内容, 或者停止发送 MBMS, 并拒 绝所有 UE的 MBMS连接请求。
为以进一步提高 MBMS在用户在移动中的可用性、增强系统资源分配 的灵活性、 以及系统资源重新分配时 MBMS的可用性, 发送 MBMS信号 时,基站将 MBSFN资源分配信息置于 MBMS信号的最前端。接收到 MBMS 信号后, UE首先解析最前端的 MBSFN资源分配信息, 然后及时正确地解 析出想要接收的 MBMS内容。 如果资源分配发生变化, 则各个基站发送新 的 MBSFN资源分配信息, UE也可以立刻根据新的 MBSFN资源分配信息 及时正确地解析出想要接收的 MBMS内容, 方便业务扩展。
图 8 a为本发明实施例基站的结构示意图, 如图 8 a所示, 本实施例基 站包括: 第二接收模块 81 , 第一加扰模块 82, 和第二发送模块 83。
第二接收模块 81 , 用于接收 MBSFN资源分配信息;
第一加扰模块 82, 用于用 STC ID对 STC内的 MBMS信号加扰; 第二发送模块 83 , 用于发送 MBMS信号;
第二发送模块 83还可以包括:第一封装模块 84,以进一步提高 MBMS 在用户在移动中的可用性、 增强系统资源分配的灵活性、 以及系统资源重 新分配时 MBMS的可用性如图 8 b所示。
第一封装模块 84, 用于将上述资源分配的信息置于上述 MBMS信号 的最前端。
本实施例中移动性管控网元为用于图 7所示的发送方法实施例, 其特 征以及用途不再赘述。
图 9为本发明实施例 UE的结构示意图, 如图 9所示, 本实施例 UE 包括: 第三接收模块 91 , 和第一解封装模块 92。
第三接收模块 91 , 用于接收上述 MBMS信号;
第一解封装模块 92, 用于解析上述 MBSFN资源分配信息, 按照解析 结果读取上述加扰后的 MBMS信号。
若 MBSFN支持上行链路, 则 UE还包括:
第三发送模块 93 , 用于发送 UE的上报信息。
本实施例适用于 MBMS的接收, 尤其适合 UE移动时接收 MBMS信 号。 该 MBMS可以基于 LTE网络, WCDMA网络, CDMA-2000网络, 或 者 TD-SCDMA网络。
本实施例中 UE主要起到按照移动管控网元的资源分配接收 MBMS内 容的作用。
图 10为本发明移动性管理系统的实施例的结构示意图,包括移动性管 控网元 101、 基站 102。
上述移动性管控网 101 元用于获取多媒体广播组播业务同频区 MBSFN 内 MBMS 内容所覆盖的物理区域的划分信息; 根据上述 MBSFN 内 MBMS 内容所覆盖的物理区域的划分信息, 分配 MBSFN 资源, 上述 MBSFN资源包括: STC 、 STC ID, 上述 MBSFN资源还可以包括以下一 项或其任意组合: STC、 STC ID, STA、 STAID, STA时隙资源、 STC隔 离带; 发送 MBSFN资源分配信息;
上述基站 102用于接收 MBSFN资源分配信息; 按照 MBSFN资源分 配发送 MBMS信号。
若 MBSFN支持上行链路, 则:
上述移动性管控网元 101进一步用于: 接收 MBSFN内 UE的上报信 息;如果注册用户数目少于特定的门限值,则指示 MBSFN内的基站改变发 送方式。 通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本 发明可以通过硬件实现, 也可以借助软件加必要的通用硬件平台的方式来 实现。 基于这样的理解, 本发明的技术方案可以以软件产品的形式体现出 来, 该软件产品可以存储在一个非易失性存储介质 (可以是 CD-ROM, U 盘, 移动硬盘等) 中, 包括若干指令用以使得一台计算机设备(可以是个 人计算机, 服务器, 或者网络设备等)执行本发明各个实施例上述的方法。
本领域技术人员可以理解附图只是一个优选实施例的示意图, 附图中 的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描 述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实施例 的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也可以进 一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。
以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局限于 此, 任何本领域的技术人员能思之的变化都应落入本发明的保护范围。

Claims

权 利 要 求
1、 一种实现多媒体广播组播业务的移动性管理方法, 其特征在于: 获取多媒体广播组播业务同频区 MB SFN内 MBMS内容所覆盖的物理 区域的划分信息;
根据所述 MBSFN内 MBMS内容所覆盖的物理区域的划分信息,分配
MBSFN资源, 所述 MBSFN资源包括: 同步传输簇 STC、 和同步传输簇标 识信息 STC ID;
发送 MBSFN资源分配信息。
2、 根据权利要求 1所述移动性管理方法, 所述 MBSFN资源还包括 以下一项或其任意组合: 服务传输区 STA、 服务传输区标识信息 STA ID、
STA时隙资源、 STC隔离带。
3、 根据权利要求 1所述移动性管理方法, 若所述 MBSFN支持上行 链路, 则所述方法还包括:
接收用户设备 UE的上报信息;
如果注册用户数目少于特定的门限值, 则指示所述 MBSFN内的基站 改变发送方式;
4、 根据权利要求 1所述移动性管理方法, 若所述 MBSFN支持上行 链路, 则所述方法还包括:
获取上行链路的无线资源控制 RRC连接状态;
如果所述 RRC处于连接状态, 则接收同频测量结果;
根据所述同频测量结果, 如果需要切换, 则发送切换命令。
5、 一种移动性管控网元, 其特征在于, 包括:
第一获取模块,用于获取 MBSFN内 MBMS内容所覆盖的物理区域的 划分信息;
第一分配模块,用于根据所述 MBSFN内 MBMS内容所覆盖的物理区 域的划分信息, 分配 MBSFN资源;
第一发送模块, 用于发送资源分配信息。
6、 根据权利要求 5 所述的一种移动性管控网元, 其特征在于, 若 MBSFN支持上行链路, 则还包括:
第一接收模块, 用于接收 UE的上报信息;
第一控制模块,如果注册用户数目少于特定的门限值,则指示 MBSFN 内的基站改变发送方式。
7、 一种实现多媒体广播组播业务的移动性管理发送方法, 其特征在 于:
接收 MBSFN资源分配信息;
按照所述 MBSFN资源分配信息发送 MBMS信号, 所述 MBSFN资源 包括: 同步传输簇 STC、 同步传输簇标识信息 STC ID。
8、 根据权利要求 7所述的一种实现多媒体广播组播业务的移动性管 理发送方法, 其特征在于, 还包括:
用 STC ID对 STC内的 MBMS信号加扰。
9、 根据权利要求 7所述的一种实现多媒体广播组播业务的移动性管 理发送方法, 所述 MBSFN资源还包括以下一项或其任意组合: STA、 STA ID、 STA时隙资源、 STC隔离带。
10、 根据权利要求 7所述的一种实现多媒体广播组播业务的移动性管 理发送方法, 所述 MBMS信号包括: 位于 MBMS信号最前端的 MBSFN 资源分配信息。
11、 一种基站, 其特征在于, 包括:
第二接收模块, 用于接收 MBSFN资源分配信息, 所述 MBSFN资源 包括: 同步传输簇 STC、 同步传输簇标识信息 STC ID;
第二发送模块,用于按照所述 MBSFN资源分配信息发送 MBMS信号。
12、 根据权利要求 11所述的一种基站, 还包括:
第一加扰模块, 用于用 STC ID对 STC内的 MBMS信号加扰。
13、 根据权利要求 11所述的一种基站, 还包括:
第一封装模块,用于将所述 MBSFN资源分配信息置于所述 MBMS信 号的最前端。
14、 一种 UE, 其特征在于, 包括:
第三接收模块, 用于接收 MBMS信号;
第一解封装模块, 用于解析 MBSFN资源分配信息, 按照解析结果读 取加 4尤后的 MBMS信号。
15、 根据权利要求 14所述的 UE, 其特征在于, 若 MBSFN支持上行 链路, 则还包括:
第三发送模块, 用于发送 UE的上报信息。
16、 一种移动性管理系统,其特征在于, 包括移动性管控网元、基站, 所述移动性管控网元用于获取 MBSFN内 MBMS内容所覆盖的物理区 域的划分信息; 根据所述 MBSFN内 MBMS内容所覆盖的物理区域的划分 信息,分配 MBSFN资源,所述 MBSFN资源包括 STC、 STC ID;发送 MBSFN 资源分配信息;
所述基站用于接收所述 MBSFN资源分配信息; 按照所述 MBSFN资 源分配信息发送 MBMS信号。
17、 根据权利要求 16所述的一种移动性管理系统, 若 MBSFN支持 上行链路, 则:
所述移动性管控网元进一步用于: 接收 UE的上报信息; 如果注册用 户数目少于特定的门限值, 则指示 MBSFN内的基站改变发送方式。
PCT/CN2009/071306 2009-04-16 2009-04-16 一种实现多媒体广播组播业务的移动性管理方法、设备和系统 WO2010118577A1 (zh)

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