WO2012068954A1 - Mbms业务的传输方法和系统 - Google Patents

Mbms业务的传输方法和系统 Download PDF

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Publication number
WO2012068954A1
WO2012068954A1 PCT/CN2011/081951 CN2011081951W WO2012068954A1 WO 2012068954 A1 WO2012068954 A1 WO 2012068954A1 CN 2011081951 W CN2011081951 W CN 2011081951W WO 2012068954 A1 WO2012068954 A1 WO 2012068954A1
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Prior art keywords
mbms
mbms service
effective area
information
service
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PCT/CN2011/081951
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English (en)
French (fr)
Inventor
王斌
朱常青
毛磊
许辉
卢忱
马子江
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中兴通讯股份有限公司
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Publication of WO2012068954A1 publication Critical patent/WO2012068954A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of Long Term Evolution (LTE), and in particular to a method for transmitting MBMS (Multimedia Broadcast Multicast Service) services. And system.
  • LTE Long Term Evolution
  • MBMS Multimedia Broadcast Multicast Service
  • BACKGROUND With the rapid development of the Internet and the popularization of large-screen multi-function mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged, for example, video conferencing, television broadcasting, video on demand, advertising, online education, interactive games. Etc., this aspect meets the rising business needs of mobile users, and on the other hand brings new business growth points for mobile operators.
  • These mobile data multimedia services require multiple users to receive the same data at the same time. Compared with general data services, they have the characteristics of large data volume, long duration, and delay sensitivity.
  • the 3rd Generation Partner Project (3GPP) proposed the MBMS service, which is a technology for transmitting data from one data source to multiple targets.
  • the sharing of resources increases the utilization of network resources (especially air interface resources).
  • MBMS defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile
  • the trend of data development provides a better business prospect for the development of 3G.
  • MBMS services are introduced in the Long Term Evolution Release 9 (LTE R9) system.
  • LTE R9 Long Term Evolution Release 9
  • the MBMS service carries the common transmission of control signaling and user data in the system to implement.
  • the control signaling will inform the receiving end (or terminal, user equipment) (User Equipment, UE for short) corresponding control parameters, and direct the UE to receive the MBMS service (ie, corresponding user data) of interest at the corresponding location.
  • the MBMS control signaling (control information, including: MBMS service configuration information, etc.) is transmitted in the LTE R9 system through a Multicast Control Channel (MCCH), which is called MBMS service. For MBMS service data), it is transmitted through a Multicast Traffic Channel (MTCH).
  • MCCH Multicast Control Channel
  • MTCH Multicast Traffic Channel
  • the MBMS control signaling (ie, MCCH information) transmitted on the logical channel MCCH mainly includes: a multicast resource of an MBMS over a Single Frequency Network (MBSFN) area corresponding to the MCCH information.
  • MSSFN Single Frequency Network
  • All the MBMS services in the MBSFN area (or the MBMS service that has already started, or the MBMS service that has been called session start), and the configuration and attribute information of the ingoing MBMS service; MTCH
  • the bearer is the MBMS service data, and the MBMS service is generally associated with the MTCH (for example, MBMS service 1 corresponds to MTCH1, MBMS service 2 corresponds to MTCH2), that is, the UE reads the MBMS service and the UE reads the MTCH expression.
  • MBMS service 1 corresponds to MTCH1
  • MBMS service 2 corresponds to MTCH2
  • the MBMS control signaling (MCCH information) and the MBMS service data are transmitted in the range of the MBSFN area; the MCCH and the MBSFN area are corresponding to each other, that is, the MCCH information content corresponding to the different MBSFN areas is different; Among them, the MBSFN area is composed of a series of cells. Specifically, one MBSFN area includes one or more cells controlled by an evolved base station (e B). 1 is a schematic diagram of an existing MBSFN area. As shown, the MBSFN area includes 19 cells, where cells 1 to 6 are e Bl controlled cells; cells 7 to 13 are e B2 controlled cells; and cells 14 to 19 is a cell controlled by e B3.
  • e B evolved base station
  • the cell is the basic concept in the field of wireless communication, which logically indicates the coverage of the wireless signal.
  • the cell is planned by the operator when the network is deployed. Each cell has its unique identifier Cell ID, and its Cell ID will pass.
  • the Broadcast Control Channel (BCCH) information is transmitted in the cell.
  • the important network elements involved in the transmission of the MBMS service include: BM-SC (Broadcast Multicast Service Centre), MME (Mobility Management Entity), MCE (Multi-cell/) Multicast/multicast cooperative entity), e B, MBMS GW;
  • the BM-SC acts as the core network element and triggers the transmission of the MBMS service.
  • the MBMS Service Area range of the service will be given, and the range indicates the transmission range of the MBMS service on the air interface (Uu port, or wireless side).
  • the BM-SC indicates the MBMS Service Area of the MCE service (which is forwarded by the MME) by using the MBMS Session Start Request message.
  • the MCE After receiving the MBMS Session Start Request message containing the MBMS Service Area, the MCE will correspond the content of the MBMS Service Area to the corresponding MBSFN area, and send the corresponding MCCH information and MBMS service data on the corresponding MBSFN area.
  • the effective area of the MBMS service (also referred to as local information, local information) refers to the effective or useful area of the MBMS service; considering that the existing MBMS service will be in the entire MBSFN The area is transmitted, and the effective area of the MBMS service is generally smaller than the MBSFN area.
  • the MBMS service effective area is characterized by flexible change (MBSFN area is static configuration), indicating that the MBMS service is valid for the UE in those areas; that is, although the MBMS service is transmitted in the entire MBSFN area, for the UE,
  • MBSFN area is static configuration
  • the specific service effective area can be known, and the power consumption caused by the UE blindly receiving the MBMS service can be reduced. That is to say, the MBMS service takes effect in the active area and can be received by the UE; outside the active area and in the MBSFN In the area, although the UE can also receive the MBMS service, the received MBMS service is useless data or interference for the UE, which increases the power consumption of the UE.
  • FIG. 2 A schematic diagram of a specific MBMS Service Area, an MBSFN Area, and an effective area of an MBMS service is shown in FIG. 2.
  • the BM-SC indicates the area size of the MBMS Service 1 Area of the MBMS Service 1 (the MBMS service 1 area) (as shown by the dotted line in FIG. 2); the MCE associates the MBMS Service 1 Area to the corresponding MBSFN Area. (As shown in MBSFN Area 1 2, 3 in Figure 2); In addition, Figure 2 also shows the effective area of MBMS Service 1.
  • the existing problems are: How to effectively introduce the relevant content of the effective area of the MBMS service under the existing MBMS service transmission mechanism or architecture, and provide a reasonable and efficient representation method of the effective area of the MBMS service, and realize the introduction of the effective area of the MBMS service the goal of.
  • the present invention provides a method and system for transmitting an MBMS service to at least solve the problem of how to effectively introduce related content of an effective area of an MBMS service under an existing MBMS service transmission mechanism or architecture.
  • a method for transmitting an MBMS service including: transmitting, by a first network element on a network side, MBMS service effective area information to a second network element on a network side; The indication information is sent to the terminal, where the indication information is used to indicate an MBMS service effective area corresponding to the MBMS service effective area information.
  • the method further includes: receiving, by the terminal, the indication information sent by the second network element on the network side; the terminal is in the MBMS indicated by the indication information The MBMS service is received in the effective area of the service.
  • the MBMS service effective area includes: a cell used to provide a valid MBMS service for the terminal.
  • the MBMS service effective area information includes: a MBMS SAI (Service Area Identity) list, where each MBMS SAI in the MBMS SAI list represents one or more for providing a valid MBMS service.
  • the MBMS service effective area information includes: an MBMS SAI index, where each MBMS SAI corresponding to the MBMS SAI index represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: an MBMS SAI bitmap, each bit in the MBMS SAI bitmap corresponds to one MBMS SAL, wherein each MBMS SAI corresponding to each bit of value 1 Representing one or more cells for providing valid MBMS services; or, the MBMS SAI corresponding to each bit having a value of 0 represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: Cell lD, where each Cell ID corresponds to one cell for providing valid MBMS service.
  • the MBMS service effective area information includes: e B ID, where each e B ID corresponds to one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: TAC information, where the TA corresponding to each TAC information represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: center point coordinate information and radius information of the MBMS service effective area.
  • the cell that provides the MBMS service for the terminal refers to a cell in which the MBMS service is valid and can be received by the terminal.
  • the first network element on the network side is a broadcast multicast service center BM-SC, and the second network element on the network side is a multi-cell/multicast coordinated entity MCE.
  • the step of the network side second network element transmitting the indication information to the terminal includes: the MCE converting the MBMS service effective area information into indication information that can be identified by the evolved base station eNB;
  • the indication information that can be identified by the evolved base station eNB is sent to the terminal.
  • a transmission system of an MBMS service including: the first network element on the network side, configured to send MBMS service effective area information to a network side second network element;
  • the second second network element is configured to send the indication information to the terminal, where the indication information is used to indicate the MBMS service effective area corresponding to the MBMS service effective area information.
  • the foregoing MBMS service transmission system further includes: the terminal, configured to receive the indication information sent by the network element second network element, and receive the MBMS service in the MBMS service effective area indicated by the indication information .
  • the first network element on the network side is a broadcast multicast service center BM-SC
  • the second network element on the network side is a multi-cell/multicast coordinated entity MCE.
  • the UE by notifying the UE of the corresponding MBMS service effective area, the UE can receive the MBMS service in the effective area, but not in other non-active areas, thereby reducing the power consumption of the UE and improving Receive efficiency.
  • FIG. 1 is a schematic diagram of an MBSFN area according to the related art
  • FIG. 2 is a schematic diagram of an MBMS Service Area, an MBSFN area, and an MBMS service effective area according to the related art
  • FIG. 3 is an MBMS according to an embodiment of the present invention. A preferred flow chart of a transmission method of a service
  • FIG. 4 is a preferred structural diagram of a transmission system of an MBMS service according to an embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • the communication may be implemented by a wireless connection or a wired connection or a combination of both, which is not limited by the present invention.
  • FIG. 3 is a preferred flowchart of a method for transmitting an MBMS service according to an embodiment of the present invention, which includes the following steps: S302: A first network element on a network side sends an effective area information of an MBMS service to a second network element on a network side;
  • the second network element on the network side sends the indication information to the terminal, where the indication information is used to indicate an effective area of the MBMS service corresponding to the valid area information of the MBMS service.
  • the UE can receive the MBMS service in the valid area, but not in other non-active areas, thereby reducing the UE's work. Consumption, improve reception efficiency.
  • the method further includes: the terminal receiving the indication information sent by the second network element on the network side; the terminal is in the effective area of the MBMS service indicated by the indication information Receive MBMS service within.
  • the MBMS service effective area includes: a cell used to provide a valid MBMS service for the terminal.
  • the MBMS service effective area information includes: an MBMS SAI list, where each MBMS SAI in the MBMS SAI list represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: an MBMS SAI index, where each MBMS SAI corresponding to the MBMS SAI index represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area is represented by an index, which saves the amount of data transmitted and improves the transmission efficiency.
  • the MBMS service effective area information includes: an MBMS SAI bitmap, where each bit in the MBMS SAI bitmap corresponds to one MBMS SAI, and each MBMS corresponding to a bit of 1
  • the SAI represents one or more cells used to provide efficient MBMS services.
  • the correspondence between the value of the bit in the bitmap and the MBMS SAI is only an example, and the present invention is not limited thereto.
  • the SAI represents one or more cells used to provide efficient MBMS services.
  • the effective area of the MBMS service is represented by a bitmap, which saves the amount of data transmitted and improves the transmission efficiency.
  • the MBMS service effective area information includes: Cell lD, where each Cell ID corresponds to one cell for providing valid MBMS service.
  • the MBMS service effective area information includes: e B ID, where each e B ID corresponds to one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: TAC information, where the TA corresponding to each TAC information represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: center point coordinate information and radius information of the MBMS service effective area.
  • the cell that provides the MBMS service for the terminal refers to a cell in which the MBMS service is valid and can be received by the terminal.
  • the first network element on the network side is a broadcast multicast service center (BM-SC), and the second network element on the network side is a multi-cell/multicast coordinated entity (MCE).
  • the step of the network side second network element transmitting the indication information to the terminal includes: the MCE converting the MBMS service effective area information into the indication information that can be identified by the evolved base station e B;
  • the indication information that can be identified by the evolved base station eNB is sent to the terminal.
  • the specific form of the effective area information of the MBMS service may be one of the following: MBMS SAI (Service Area Identity) list, MBMS SAI index, SAI bitmap eNB information, Cell information, TA information, Coordinate and radius information.
  • MBMS SAI list Service Area Identity
  • MBMS SAI represents the range of a group of cells (possibly including one or more cells); that is, a group of cells using the same MBMS SAI value indicates that the group of cells constitutes a logical area;
  • the value of the SAI corresponding to the cell is configured by the operator.
  • the operator has divided multiple areas by different values of the MBMS SAI, and each area contains one or more cells using the same MBMS SAI;
  • the MBMS Service Area configured by the BM-SC is implemented by including one or more MBMS SAI values, and the area formed by the cells corresponding to the MBMS SAI values is the MBMS Service Area; Multiple MBMS SAI values are sent via the MBMS SESSION START REQUEST message.
  • the effective area of the MBMS service is represented by the MBMS SAI list, that is, the MBMS service effective area contains one or more MBMS SAI values; according to the prior art, each MBMS SAI represents a range of a group of cells; then, through the MBMS SAI list
  • the composed area corresponds to the effective area of the MBMS service.
  • the effective area of the MBMS service is smaller than the MBSFN area, and is also smaller than the MBMS Service Area; therefore, the MBMS SAI list corresponding to the MBMS service effective area should be a subset of the MBMS SAI list corresponding to the MBMS Service Area. But the two are independent of each other. 2 MBMS SAI cable bow I
  • the MBMS SAI corresponding to the MBMS Service Area will be sent by the BM-SC through the MBMS SESSION START REQUEST message.
  • the MBMS SAI index is based on the MBMS SAI corresponding to the MBMS Service Area, and only uses the relative MBMS SAI identifier to identify the MBMS SAI of the MBMS service effective area. For the sake of clear expression, the following table exemplifies. Table 1
  • the MBMS Service Area contains five MBMS SAIs, which are ⁇ 1000, 1001, 5001, 6008, 9008 ⁇ ; in the order of 1000, the corresponding number 1, 1001 corresponds to the serial number 2, and so on, 9008 corresponds to the serial number 5. Also consider that the effective area of the MBMS service is smaller than the MBSFN area, which is also smaller than the MBMS Service.
  • the MBMS SAI list corresponding to the effective area of the MBMS service should be a subset of the MBMS SAI list corresponding to the MBMS Service Area. Therefore, the valid area of the MBMS service is identified by a sequence number; for example, the effective area of the MBMS service is the sequence number ⁇ 1, 3, 5 ⁇ , that is, the effective area of the MBMS service corresponds to the MBMS SAI ⁇ 1000, 5001, 9008 ⁇ ; The overhead of the effective area of the MBMS service in the sending process can be reduced; the MBMS Service Area is associated with the effective area of the MBMS service.
  • MBMS Service Area contains 5 MBMS SALs are ⁇ 1000, 1001, 5001, 6008, 9008 ⁇ respectively; in sequence 1000 corresponds to sequence number 1, 1001 corresponds to sequence number 2, and so on. 9008 corresponds to the sequence number 5; the method of using the Bitmap in the process of indicating the effective area of the MBMS service, specifically for the above scenario, using the 5-bit bitmap method to represent the effective area of the MBMS service; wherein the highest bit of the 5-bit bitmap corresponds to the MBMS with the sequence number of 1.
  • the SAI value, the 5th bit of the next bit corresponds to the value of the MBMS SAI with the sequence number 2, and so on.
  • the lowest bit corresponds to the value of the MBMS SAI with the sequence number of 5. If the value of a bit is "1", the bit is represented.
  • the corresponding MBMS SAI belongs to the effective area of the MBMS service; otherwise, it indicates that it is not in the effective area of the MBMS service; for example: if the 5-bit bitmap value is ⁇ 10101 ⁇ , it indicates the MBMS SAI with the sequence number ⁇ 1, 3, 5 ⁇
  • the effective area for the MBMS service that is, the effective area of the MBMS service contains the MBMS SAI of ⁇ 1000, 5001, 9008 ⁇ .
  • each cell has a unique identifier Cell ID, and the Cell ID will be transmitted in the cell through the Broadcast Control Channel (BCCH) information; the UE can obtain the BCCH information by reading the BCCH information.
  • the effective area of the MBMS service is composed of Cell information, and includes a plurality of Cell ID information.
  • the Cell information defines an effective area of the MBMS service.
  • an eNB has its own identity eNB ID, and different eNB devices can be identified by different eNB IDs; wherein each eNB may correspond to one or more cells.
  • the MBMS service effective area is composed of eNB information, and includes one or more eNB ID information; and the MBMS service effective area is defined by the eNB ID information.
  • TA information According to the prior art tracking area (TA, Track area) is composed of a group of cells, mainly used for paging on the network side; this group of cells will have the same TA value and track
  • the format of the area code (TAC, Track Area Code) is transmitted on the BCCH of each cell; the UE can know the location of the TA where it is located by reading the tracking area code in the BCCH information.
  • the effective area of the MBMS service is composed of TA information, which includes one or more TAC information; and the effective area of the MBMS service is defined by the TAC information.
  • the MBMS service effective area is composed of coordinate and radius information, and the coordinate information can be obtained by GPS (latitude, longitude) and corresponding effective radius; The range, which corresponds to the effective area information of the MBMS service.
  • Embodiment 1 The present invention provides a method for representing an effective area of an MBMS service. To demonstrate integrity, the entire process of applying an effective area of an MBMS service is expressed as follows: In the first step, the BM-SC sends the effective area information of the MBMS service.
  • the BM-SC may send the MBMS service effective area information in the original message MBMS SESSION START REQUEST or the MBMS SESSION UPDATED REQUEST message, or send the MBMS service effective area information through the newly defined message.
  • the specific form of the effective area information of the MBMS service in the first embodiment is the MBMS SAI (Service Area Identity) list; for convenience of description, the embodiment specifically includes three MBMS SAI values, ⁇ 1001, 2002, 3003 ⁇ ; each MBMS The value of the SAI corresponds to the corresponding one or more cells (configured in advance by the operator).
  • the MBMS service effective area information is sent by the BM-SC, and the corresponding MBMS service effective area is configured.
  • the MCE receives the effective area information of the MBMS service.
  • the MCE After the MCE receives the MBMS service effective area information, which is composed of the MBMS SAI list, the MCE will send the MBMS on the MCCH of the corresponding MBSFN Area according to the MBMS SAI list (the list constitutes the MBMS service effective area information) corresponding to the corresponding MBSFN Area.
  • the valid area indication information of the business Embodiment 2
  • the specific steps are the same as those in the first embodiment, and only the expression of the effective area of the MBMS service is performed.
  • the BM-SC sends the MBMS service effective area information.
  • the BM-SC may send the MBMS service effective area information through the original message MBMS SESSION START REQUEST or the MBMS SESSION UPDATED REQUEST message, or send the MBMS service effective area information through the newly defined message.
  • the specific form of the effective area information of the MBMS service in the second embodiment is one of the following: 1 MBMS SAI index
  • the MBMS SAI corresponding to the MBMS Service Area will be sent by the BM-SC via the MBMS SESSION START REQUEST message.
  • the MBMS SAI index is based on the MBMS SAI corresponding to the MBMS Service Area. Only the MBMS SAI identifier is used to identify the MBMS SAI of the MBMS service effective area. For the sake of clear expression, the following table is used for illustration. Table 2
  • the MBMS Service Area contains five MBMS SAIs, which are ⁇ 1000, 1001, 5001, 6008, 9008 ⁇ ; the sequence number 1000 corresponds to the sequence number 1, 1001 corresponds to the sequence number 2, and so on, and 9008 corresponds to the sequence number 5. It is also considered that the MBMS service effective area is smaller than the MBSFN area, and is also smaller than the MBMS Service Area; therefore, the MBMS SAI list corresponding to the MBMS service effective area should be a subset of the MBMS SAI list corresponding to the MBMS Service Area.
  • the valid area of the MBMS service is identified by a sequence number; for example, the effective area of the MBMS service is the sequence number ⁇ 1, 3, 5 ⁇ , that is, the effective area of the MBMS service corresponds to the MBMS SAI ⁇ 1000, 5001, 9008 ⁇ ;
  • the overhead of the effective area of the MBMS service in the sending process can be reduced;
  • the MBMS Service Area is associated with the effective area of the MBMS service.
  • 2 MBMS SAI bitmap Same scene as MBMS SAI index, MBMS Service Area contains 5 MBMS SAL are ⁇ 1000, 1001, 5001, 6008, 9008 ⁇ respectively; in sequence 1000 corresponds to sequence number 1, 1001 corresponds to sequence number 2, and so on.
  • the method of using the Bitmap in the process of indicating the effective area of the MBMS service specifically for the above scenario, using the 5-bit bitmap method to represent the effective area of the MBMS service; wherein the highest bit of the 5-bit bitmap corresponds to the MBMS with the sequence number of 1.
  • the SAI value, the 5th bit of the next bit corresponds to the value of the MBMS SAI with the sequence number 2, and so on.
  • the lowest bit corresponds to the value of the MBMS SAI with the sequence number of 5. If the value of a bit is "1", the bit is represented.
  • the corresponding MBMS SAI belongs to the effective area of the MBMS service; otherwise, it indicates that it is not in the effective area of the MBMS service; for example: if the 5-bit bitmap value is ⁇ 10101 ⁇ , it indicates the MBMS SAI with the sequence number ⁇ 1, 3, 5 ⁇
  • the effective area for the MBMS service that is, the effective area of the MBMS service contains the MBMS SAI of ⁇ 1000, 5001, 9008 ⁇ .
  • each cell has a unique identifier Cell ID, and the Cell ID will be transmitted in the cell through the Broadcast Control Channel (BCCH) information; the UE can obtain the BCCH information by reading the BCCH information.
  • the Cell ID of the cell is composed of Cell information, which includes more than one
  • the Cell information is used to define the effective area of the MBMS service.
  • the eNB has its own identified eNB ID, and different eNB devices may be identified by different eNB IDs; wherein each eNB may correspond to one or more cells.
  • the MBMS service effective area is composed of eNB information, which includes one or more e B ID information; and the MBMS service effective area is defined by the eNB ID information.
  • TA Track area
  • the format of the area code (TAC, Track Area Code) is transmitted on the BCCH of each cell; the UE can know the location of the TA where it is located by reading the tracking area code in the BCCH information.
  • the effective area of the MBMS service is composed of TA information, which includes one or more TAC information; and the effective area of the MBMS service is defined by the TAC information.
  • the MBMS service effective area is composed of coordinate and radius information, and the coordinate information can be obtained by GPS (latitude, longitude) and corresponding effective radius; The range, which corresponds to the effective area information of the MBMS service.
  • the MCE receives the effective area information of the MBMS service. After receiving the MBMS service effective area information composed of MBMS SAI, MBMS SAI bitmap, Cell information, eNB information, TA information, coordinates and radius information, the MCE will correspond to the corresponding MBSFN Area according to the above information.
  • the effective area indication information of the MBMS service is sent on the MCCH of the MBSFN Area.
  • the present invention further provides a transmission system for an MBMS service, as shown in FIG. 4, including: a network side first network element 402 and a network side second network element 404, wherein the network side first network element 402 is set.
  • the information about the MBMS service effective area is sent to the network side second network element 404; the network side second network element 404 is in communication with the network side first network element 402, and is configured to send the indication information to the terminal, where The indication information is used to indicate an MBMS service effective area corresponding to the MBMS service effective area information.
  • the UE by notifying the UE of the corresponding MBMS service effective area, the UE can receive the MBMS service in the effective area, but not in other non-active areas, thereby reducing the power consumption of the UE and improving Receive efficiency.
  • the transmission system of the MBMS service according to the embodiment of the present invention further includes: the terminal 406, configured to receive the indication information sent by the network side second network element 404, and in the MBMS indicated by the indication information The MBMS service is received in the effective area of the service.
  • the network side first network element 402 is a broadcast multicast service center (BM-SC)
  • the network side second network element 404 is a multi-cell/multicast coordinated entity (MCE).
  • BM-SC broadcast multicast service center
  • MCE multi-cell/multicast coordinated entity
  • the MBMS service effective area includes: a cell used to provide a valid MBMS service for the terminal.
  • the MBMS service effective area information includes: an MBMS SAI list, where each MBMS SAI in the MBMS SAI list represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: an MBMS SAI index, where each MBMS SAI corresponding to the MBMS SAI index represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area is represented by an index, which saves the amount of data transmitted and improves the transmission efficiency.
  • the MBMS service effective area information includes: an MBMS SAI bitmap, where each bit in the MBMS SAI bitmap corresponds to one MBMS SAI, and each MBMS corresponding to a bit of 1
  • the SAI represents one or more cells used to provide efficient MBMS services.
  • the effective area of the MBMS service is represented by a bitmap, which saves the amount of data transmitted and improves the transmission efficiency.
  • the MBMS service effective area information includes: Cell lD, where each Cell ID corresponds to one cell for providing valid MBMS service.
  • the MBMS service effective area information includes: e B ID, where each e B ID corresponds to one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: TAC information, where the TA corresponding to each TAC information represents one or more cells for providing valid MBMS services.
  • the MBMS service effective area information includes: center point coordinate information and radius information of the MBMS service effective area.
  • the cell that provides the MBMS service for the terminal refers to a cell in which the MBMS service is valid and can be received by the terminal.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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Abstract

本发明提供了一种MBMS业务的传输方法和系统,其中,该方法包括:网络侧第一网元将MBMS业务有效区域信息发送给网络侧第二网元;所述网络侧第二网元将指示信息发送给终端,其中,所述指示信息用于指示所述MBMS业务有效区域信息对应的MBMS业务有效区域。本发明解决了在现有MBMS业务发送机制或架构下,如何有效的引入MBMS业务有效区域的相关内容的问题,从而减少了UE的功耗,提高了接收效率。

Description

MBMS业务的传输方法和系统 技术领域 本发明涉及长期演进 (Long Term Evolution, 简称为 LTE) 领域, 具体而言, 涉 及一种 MBMS (Multimedia Broadcast Multicast Service, 多媒体广播和组播业务)业务 的传输方法和系统。 背景技术 随着 Internet 的迅猛发展和大屏幕多功能手机的普及, 出现了大量移动数据多媒 体业务和各种高带宽多媒体业务, 例如, 视频会议、 电视广播、 视频点播、 广告、 网 上教育、 互动游戏等, 这一方面满足了移动用户不断上升的业务需求, 另一方面也为 移动运营商带来新的业务增长点。 这些移动数据多媒体业务要求多个用户能够同时接 收相同数据, 与一般的数据业务相比, 具有数据量大、 持续时间长、 时延敏感等特点。 为了有效地利用移动网络资源, 第三代合作伙伴计划 (The 3rd Generation Partner Project, 简称为 3GPP) 提出了 MBMS业务, 该业务是一种从一个数据源向多个目标 传送数据的技术, 实现了网络 (包括核心网和接入网) 资源的共享, 提高了网络资源 (尤其是空中接口资源) 的利用率。 3GPP定义的 MBMS不仅能够实现纯文本低速率 的消息类组播和广播, 而且还能够实现高速多媒体业务的广播和组播, 提供多种丰富 的视频、 音频和多媒体业务, 这无疑顺应了未来移动数据发展的趋势, 为 3G的发展 提供了更好的业务前景。 目前, 在长期演进版本 9 (LTE R9) 系统中引入了 MBMS业务。 MBMS业务在 系统中承载需要控制信令和用户数据的共同传输来进行实现。 其中, 控制信令将会告 知接收端 (或终端、 用户设备) (User Equipment, 简称为 UE) 相应的控制参数, 指 引 UE在相应的位置接收其感兴趣的 MBMS业务 (即相应的用户数据)。 这种 MBMS 控制信令 (控制信息, 包括: MBMS业务的配置信息等) 在 LTE R9系统中是通过多 播控制信道 (Multicast Control Channel, 简称为 MCCH) 来进行传输的, MBMS业务 (或称之为 MBMS业务数据) 是通过多播业务信道 (Multicast Traffic Channel, 简称 为 MTCH) 来进行传输的。 具体说来, 在逻辑信道 MCCH上传输的 MBMS控制信令 (即 MCCH信息)主要包含: MCCH信息所对应的多播单频网络(MBMS over a Single Frequency Network, 简称为 MBSFN) 区域的多播资源, 该 MBSFN 区域中所有正在 发送的(ongoing )MBMS业务(或称之为已经开始的 MBMS业务,或称之为已经 session start的 MBMS业务),以及 ongoing MBMS业务的配置和属性信息;在逻辑信道 MTCH 承载的是 MBMS业务数据, 一般将 MBMS业务与 MTCH进行对应 (例如: MBMS 业务 1与 MTCH1对应, MBMS业务 2与 MTCH2对应), 也就是说, UE读取 MBMS 业务与 UE读取 MTCH表达的是相同的含义。
MBMS控制信令 (MCCH信息) 和 MBMS业务数据是以 MBSFN 区域为范围进 行发送的; MCCH与 MBSFN 区域是——对应的, 也就是说不同 MBSFN区域所对应 发送的 MCCH信息内容是不相同的; 其中, MBSFN 区域由一系列小区所组成。 具体 来说, 一个 MBSFN 区域包括 1个或多个由演进基站 (e B) 控制下的小区。 图 1为 现有 MBSFN区域逻辑示意图, 如图所示, 该 MBSFN区域包括 19个小区, 其中, 小 区 1至 6为 e Bl控制的小区;小区 7至 13为 e B2控制的小区;小区 14至 19为 e B3 控制的小区。 小区是无线通讯领域的基础概念, 逻辑上表明了无线信号的覆盖范围; 小区是运营商在进行网络部署时进行规划的, 每个小区都有其唯一的标识 Cell ID, 其 Cell ID将会通过广播控制信道 (Broadcast Control Channel, 简称为 BCCH) 信息在小 区内进行发送。 根据现有技术, MBMS 业务的发送所涉及的重要网元包括: BM-SC (Broadcast Multicast Service Centre, 广播组播业务中心)、 MME (Mobility Management Entity, 移 动管理实体)、 MCE (Multi-cell/multicast Coordination Entity, 多小区 /多播协同实体)、 e B、 MBMS GW; 其中, BM-SC作为核心网元, 将会触发 MBMS业务的发送。 另 夕卜, BM-SC发起一 MBMS业务发送时, 将会给出该业务的 MBMS Service Area范围, 该范围指明了在空口上(Uu口,或称之为无线侧)该 MBMS业务的发送范围, BM-SC 通过使用 MBMS Session Start Request消息指示 MCE业务的 MBMS Service Area (其 中通过 MME进行转发)。 MCE接收到包含 MBMS Service Area的 MBMS Session Start Request消息后, 会将 MBMS Service Area的内容对应到相应的 MBSFN area上去, 并 将相应的 MCCH信息以及 MBMS业务数据在相应的 MBSFN area上进行发送。 在当前技术讨论中, 引入了 MBMS业务有效区域的概念; MBMS业务有效区域 (又称为本地信息、 当地信息)是指 MBMS业务的生效或有用区域; 考虑到现有技术 MBMS业务会在整个 MBSFN area中进行发送,而 MBMS业务有效区域的范围一般较 MBSFN area小。 MBMS业务有效区域的特点是可灵活变动(MBSFN area为静态配置), 指示 MBMS业务在那些区域对于 UE有效;也就是说,虽然 MBMS业务在整个 MBSFN area中都进行了发送, 但对于 UE来说, 通过 MBMS业务有效区域的信息, 可以知道 具体的业务有效区域, 可以减少 UE盲目接收 MBMS业务所带来的功率消耗。 也就是 说在有效区域中该 MBMS业务才生效,可以被 UE进行接收;在有效区外且在 MBSFN area内, 虽然 UE同样也可以接收到该 MBMS业务, 但接收的 MBMS业务对于 UE 来说是一种无用数据或打扰, 增加了 UE的功耗。 具体的 MBMS Service Area (MBMS业务区域)、 MBSFN Area (MBSFN区域) 以 及 MBMS业务有效区域的逻辑示意图如图 2所示。其中 BM-SC指示出 MBMS Service 1 (MBMS业务 1 ) 的 MBMS Service 1 Area (MBMS业务 1区域) 的区域大小 (如图 2中虚线所示); MCE将 MBMS Service 1 Area对应到相应的 MBSFN Area (如图 2中 MBSFN Area 1 2、 3所示); 此外, 图 2还给出了 MBMS Service 1的有效区域。 目前存在的问题是: 在现有 MBMS 业务发送机制或架构下, 如何有效的引入 MBMS业务有效区域的相关内容, 给出一种合理高效的 MBMS业务有效区域的表示 方法, 实现引入 MBMS业务有效区域的目的。 发明内容 本发明提供了一种 MBMS业务的传输方法和系统, 以至少解决在现有 MBMS业 务发送机制或架构下, 如何有效的引入 MBMS业务有效区域的相关内容的问题。 根据本发明的一个方面, 提供了一种 MBMS业务的传输方法, 其包括: 网络侧第 一网元将 MBMS业务有效区域信息发送给网络侧第二网元;所述网络侧第二网元将指 示信息发送给终端,其中,所述指示信息用于指示所述 MBMS业务有效区域信息对应 的 MBMS业务有效区域。 优选的, 所述网络侧第二网元将指示信息发送给终端之后, 还包括: 终端接收所 述网络侧第二网元发送的所述指示信息;所述终端在所述指示信息指示的 MBMS业务 有效区域内接收 MBMS业务。 优选的, 所述 MBMS业务有效区域包括: 用于为所述终端提供有效的 MBMS业 务的小区。 优选的, 所述 MBMS业务有效区域信息包括: MBMS SAI ( Service Area Identity, 服务区域标识) 列表, 其中, 所述 MBMS SAI列表中的每个 MBMS SAI表示一个或 多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: MBMS SAI索引, 其中, 每个所 述 MBMS SAI索引对应的 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的 小区。 优选的,所述 MBMS业务有效区域信息包括: MBMS SAI位图,所述 MBMS SAI 位图中的每个比特对应于一个 MBMS SAL 其中, 每个取值为 1的比特所对应的所述 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区; 或者, 每个取值为 0 的比特所对应的所述 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: Cell lD, 其中, 每个 Cell ID对应 于一个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: e B ID, 其中, 每个 e B ID对应 于一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: TAC信息, 其中, 每个 TAC信息 对应的 TA表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: 所述 MBMS业务有效区域的中心 点坐标信息和半径信息。 优选的,所述为所述终端提供有效的 MBMS业务的小区指的是如下小区: 在所述 小区中所述 MBMS业务生效, 能够被所述终端接收。 优选的, 所述网络侧第一网元为广播组播业务中心 BM-SC, 所述网络侧第二网元 为多小区 /多播协同实体 MCE。 优选的, 所述网络侧第二网元将指示信息发送给终端的步骤包括: 所述 MCE将 所述 MBMS业务有效区域信息转换成能被演进基站 eNB识别的指示信息; 所述 eNB 将所述能被演进基站 eNB识别的指示信息发送给所述终端。 根据本发明的另一方面, 提供了一种 MBMS业务的传输系统, 其包括: 所述网络 侧第一网元, 设置为将 MBMS业务有效区域信息发送给网络侧第二网元; 所述网络侧 第二网元, 设置为将指示信息发送给终端, 其中, 所述指示信息用于指示所述 MBMS 业务有效区域信息对应的 MBMS业务有效区域。 优选的, 上述 MBMS业务的传输系统还包括: 所述终端, 设置为接收所述网络侧 第二网元发送的所述指示信息,并在所述指示信息指示的 MBMS业务有效区域内接收 MBMS业务。 优选的, 所述网络侧第一网元为广播组播业务中心 BM-SC, 所述网络侧第二网元 为多小区 /多播协同实体 MCE。 在本发明中, 通过通知 UE其所对应的 MBMS业务有效区域, 使得 UE能够在该 有效区域内进行 MBMS业务的接收, 而在其他非有效区域内不接收, 从而减少了 UE 的功耗, 提高了接收效率。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据相关技术的 MBSFN区域的逻辑示意图; 图 2是根据相关技术的 MBMS Service Area、 MBSFN area以及 MBMS业务有效 区域的逻辑示意图; 图 3是根据本发明实施例的 MBMS业务的传输方法的一种优选的流程图; 图 4是根据本发明实施例的 MBMS业务的传输系统的一种优选的结构图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 在以下各个实施例中, 通信可以由无线连接或有线连接或其两者的组合来实现, 本发明对此不做限定。 图 3是根据本发明实施例的 MBMS业务的传输方法的一种优选的流程图,其包括 如下步骤: S302, 网络侧第一网元将 MBMS业务有效区域信息发送给网络侧第二网元;
S304, 所述网络侧第二网元将指示信息发送给终端, 其中, 所述指示信息用于指 示所述 MBMS业务有效区域信息对应的 MBMS业务有效区域。 在本优选的实施例中, 通过通知 UE其所对应的 MBMS业务有效区域, 使得 UE 能够在该有效区域内进行 MBMS业务的接收, 而在其他非有效区域内不接收, 从而减 少了 UE的功耗, 提高了接收效率。 所述网络侧第二网元将指示信息发送给终端之后, 还包括: 终端接收所述网络侧 第二网元发送的所述指示信息;所述终端在所述指示信息指示的 MBMS业务有效区域 内接收 MBMS业务。 优选的, 所述 MBMS业务有效区域包括: 用于为所述终端提供有效的 MBMS业 务的小区。 优选的,所述 MBMS业务有效区域信息包括: MBMS SAI列表,其中,所述 MBMS SAI列表中的每个 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: MBMS SAI索引, 其中, 每个所 述 MBMS SAI索引对应的 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的 小区。在本优选的实施例中, 通过索引来表示 MBMS业务有效区域, 节省了传输的数 据量, 提高了传输效率。 优选的,所述 MBMS业务有效区域信息包括: MBMS SAI位图,其中,所述 MBMS SAI位图中的每个比特对应于一个 MBMS SAI, 每个取值为 1 的比特所对应的所述 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。 当然, 上述位图中 的比特的取值与 MBMS SAI的对应关系只是一种示例, 本发明不限于此, 例如, 还可 以进行如下约定:每个取值为 0的比特所对应的所述 MBMS SAI表示一个或多个用于 提供有效的 MBMS业务的小区。 在本优选的实施例中, 通过位图来表示 MBMS业务 有效区域, 节省了传输的数据量, 提高了传输效率。 优选的, 所述 MBMS业务有效区域信息包括: Cell lD, 其中, 每个 Cell ID对应 于一个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: e B ID, 其中, 每个 e B ID对应 于一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: TAC信息, 其中, 每个 TAC信息 对应的 TA表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: 所述 MBMS业务有效区域的中心 点坐标信息和半径信息。 优选的,所述为所述终端提供有效的 MBMS业务的小区指的是如下小区: 在所述 小区中所述 MBMS业务生效, 能够被所述终端接收。 优选的, 所述网络侧第一网元为广播组播业务中心 (BM-SC ) , 所述网络侧第二 网元为多小区 /多播协同实体 (MCE)。 优选的, 所述网络侧第二网元将指示信息发送给终端的步骤包括: 所述 MCE将 上述 MBMS业务有效区域信息转换成能被演进基站 e B识别的指示信息; 所述 eNB 将所述能被演进基站 eNB识别的指示信息发送给所述终端。 通过上面的描述可知, MBMS 业务有效区域信息的具体形式可以是下面中的一 种: MBMS SAI ( Service Area Identity, 服务区域标识) 列表、 MBMS SAI索引、 SAI bitmap eNB信息、 Cell信息、 TA信息, 坐标及半径信息。 下面具体描述 MBMS业务有效区域具体形式中的每一种情况。 1 MBMS SAI列表
MBMS SAI的概念是现有技术, 其代表了一组小区 (可能包括一个或多个小区) 的范围; 也就是说, 一组小区使用同一 MBMS SAI取值表明该组小区组成一个逻辑区 域;每个小区所对应的 SAI取值由运营商进行配置,也就是说,运营商已经通过 MBMS SAI的不同取值划分了多个区域, 每个区域包含一个或多个使用同一 MBMS SAI的小 区; 同样根据现有技术, 由 BM-SC配置的 MBMS Service Area就是通过包含一个或多 个 MBMS SAI取值来实现的, 这些 MBMS SAI取值所对应的小区所组成区域即为 MBMS Service Area; 该一个或多个 MBMS SAI取值通过 MBMS SESSION START REQUEST消息进行发送。
MBMS业务有效区域通过 MBMS SAI列表进行表示, 也就是说 MBMS业务有效 区域包含一个或多个 MBMS SAI取值; 按照现有技术, 每个 MBMS SAI代表一组小 区的范围; 那么, 通过 MBMS SAI列表组成的区域就对应 MBMS业务有效区域。 进一步, 考虑到 MBMS业务有效区域小于 MBSFN area区域, 同样小于 MBMS Service Area;因此 MBMS业务有效区域所对应的 MBMS SAI列表应为 MBMS Service Area所对应的 MBMS SAI列表的子集。 但两者相互独立。 2 MBMS SAI索弓 I
MBMS Service Area所对应的 MBMS SAI将会由 BM-SC通过 MBMS SESSION START REQUEST消息进行发送。 MBMS SAI索引的方式是在 MBMS Service Area所 对应的 MBMS SAI的前提下, 仅使用相对的 MBMS SAI标识来标识 MBMS业务有效 区域的 MBMS SAI; 为了清晰的表达, 通过下表进行举例说明。 表 1
Figure imgf000009_0001
根据上表可知, MBMS Service Area包含了 5个 MBMS SAI,分别是 { 1000, 1001, 5001, 6008, 9008}; 按照顺序 1000对应序号 1, 1001对应序号 2, 依此类推, 9008 对应序号 5。 同样考虑到 MBMS业务有效区域小于 MBSFN area区域,同样小于 MBMS Service
Area的因素;因此 MBMS业务有效区域所对应的 MBMS SAI列表应为 MBMS Service Area所对应的 MBMS SAI列表的子集。 因此, MBMS业务有效区域使用序号进行标 识; 例如, MBMS业务有效区域为序号 { 1, 3, 5}, 即表示 MBMS业务有效区域对应 MBMS SAI{ 1000, 5001, 9008}; 使用序号的好处是, 可以降低 MBMS业务有效区域 在发送过程中的开销; MBMS Service Area与 MBMS业务有效区域相互关联。
3 MBMS SAI bitmap 同 MBMS SAI索引的场景, MBMS Service Area包含了 5个 MBMS SAL 分别是 { 1000, 1001, 5001, 6008, 9008}; 按照顺序 1000对应序号 1, 1001对应序号 2, 依 此类推, 9008对应序号 5; 在表示 MBMS业务有效区域过程中使用 Bitmap的方法, 具体针对上述场景,使用 5bit的 bitmap的方法来表示 MBMS业务有效区域;其中 5bit 的 bitmap的最高比特位对应序号为 1的 MBMS SAI取值, 5bit的次高位对应序号为 2 的 MBMS SAI取值, 依此类推, 最低位对应序号为 5的 MBMS SAI取值; 若某 bit位 取值为 "1", 则表示该 bit位所对应的 MBMS SAI属于 MBMS业务有效区域; 反之, 则表示不属于 MBMS业务有效区域; 例如: 若 5比特的 bitmap取值为 { 10101 }, 则表 示序号为 { 1, 3, 5}的 MBMS SAI为 MBMS业务有效区域, 也就是说, MBMS业务有 效区域包含 MBMS SAI为 { 1000, 5001, 9008}。
4 Cell信息 根据现有技术每个小区都有唯一的标识 Cell ID, 且 Cell ID将会通过广播控制信 道 (BCCH, Broadcast Control Channel) 信息在小区内进行发送; UE通过读取 BCCH 信息即可获取该小区的 Cell ID。 本优选的实施例中, MBMS 业务有效区域由 Cell信息组成, 其中包含一个多个 Cell ID信息; 通过 Cell信息, 定义了 MBMS业务有效区域。
5 e B信息 根据现有技术 eNB拥有其自身的标识 eNB ID,可以通过不同的 eNB ID标识不同 的 eNB设备; 其中, 每个 eNB可能对应一个或多个小区。 本优选的实施例中, MBMS业务有效区域由 eNB信息组成,其中包含一个或多个 eNB ID信息; 通过 eNB ID信息, 定义了 MBMS业务有效区域。
6 TA信息 根据现有技术跟踪区 (TA, Track 区域) 是由一组小区所组成的, 主要用于网络 侧寻呼的作用;这一组小区将会拥有相同的 TA取值,并且以跟踪区码(TAC, Track 区 域 Code) 的形式在各个小区的 BCCH上进行发送; UE通过读取 BCCH信息中的跟 踪区码, 即可获知自身所处的 TA位置。 本优选的实施例中, MBMS业务有效区域由 TA信息组成, 其中包含一个或多个 TAC信息; 通过 TAC信息, 定义了 MBMS业务有效区域。 7 坐标和半径 本优选的实施例中, MBMS业务有效区域由坐标和半径信息组成, 坐标信息的获 取可以是 GPS获得 (经、 纬度) 以及相应的有效半径; 通过坐标和半径信息, 可以获 得一定的范围, 该范围即对应 MBMS业务有效区域信息。 实施例一 本发明提供了一种 MBMS业务有效区域的表示方法,为了体现完整性,将 MBMS 业务有效区域应用的整个流程表示如下: 第一步, BM-SC发送 MBMS业务有效区域信息。 其中, BM-SC可以通过原有消息 MBMS SESSION START REQUEST或 MBMS SESSION UPDATED REQUEST消息中携带发送 MBMS业务有效区域信息,或者通过 新定义的消息发送 MBMS业务有效区域信息。 实施例一中采用 MBMS业务有效区域信息的具体形式为 MBMS SAI( Service Area Identity)列表;为了方便描述,本实施例具体包含 3个 MBMS SAI取值, { 1001 , 2002, 3003}; 每一个 MBMS SAI取值对应相应的一个或多个小区 (由运营商提前配置的)。 通过 BM-SC发送 MBMS业务有效区域信息, 配置了相应的 MBMS业务有效区 域。 第二步, MCE接收到 MBMS业务有效区域信息。
MCE收到由 MBMS SAI列表组成的 MBMS业务有效区域信息后, MCE将会根 据 MBMS SAI列表(该列表组成 MBMS业务有效区域信息)对应相应的 MBSFN Area, 在相应的 MBSFN Area的 MCCH上发送该 MBMS业务的有效区域指示信息。 实施例二 具体的步骤与实施例一相同, 仅在 MBMS 业务有效区域的表达方式上进行了区 另 |J。 第一步, BM-SC发送 MBMS业务有效区域信息。 其中, BM-SC可以通过原有消息 MBMS SESSION START REQUEST或 MBMS SESSION UPDATED REQUEST消息中携带发送 MBMS业务有效区域信息,或者通过 新定义的消息发送 MBMS业务有效区域信息。 实施例二中采用 MBMS业务有效区域信息的具体形式为下述中的一种: 1 MBMS SAI索引
MBMS Service Area所对应的 MBMS SAI将会由 BM-SC通过 MBMS SESSION START REQUEST消息进行发送。 MBMS SAI索引的方式是在 MBMS Service Area所 对应的 MBMS SAI的前提下, 仅使用相对的 MBMS SAI标识来标识 MBMS业务有效 区域的 MBMS SAI; 为了清晰的表达, 通过下表进行举例说明。 表 2
序号 MBMS Service Area所包含的 MBMS SAI取值
1 1000
2 1001
3 5001
4 6008
5 9008 根据上表可知, MBMS Service Area包含了 5个 MBMS SAI,分别是 { 1000, 1001, 5001, 6008, 9008}; 按照顺序 1000对应序号 1, 1001对应序号 2, 依此类推, 9008 对应序号 5。 同样考虑到 MBMS业务有效区域小于 MBSFN area区域,同样小于 MBMS Service Area的因素;因此 MBMS业务有效区域所对应的 MBMS SAI列表应为 MBMS Service Area所对应的 MBMS SAI列表的子集。 因此, MBMS业务有效区域使用序号进行标 识; 例如, MBMS业务有效区域为序号 { 1, 3, 5}, 即表示 MBMS业务有效区域对应 MBMS SAI{ 1000, 5001, 9008}; 使用序号的好处是, 可以降低 MBMS业务有效区域 在发送过程中的开销; MBMS Service Area与 MBMS业务有效区域相互关联。 2 MBMS SAI bitmap 同 MBMS SAI索引的场景, MBMS Service Area包含了 5个 MBMS SAL 分别是 { 1000, 1001, 5001, 6008, 9008}; 按照顺序 1000对应序号 1, 1001对应序号 2, 依 此类推, 9008对应序号 5; 在表示 MBMS业务有效区域过程中使用 Bitmap的方法, 具体针对上述场景,使用 5bit的 bitmap的方法来表示 MBMS业务有效区域;其中 5bit 的 bitmap的最高比特位对应序号为 1的 MBMS SAI取值, 5bit的次高位对应序号为 2 的 MBMS SAI取值, 依此类推, 最低位对应序号为 5的 MBMS SAI取值; 若某 bit位 取值为 "1", 则表示该 bit位所对应的 MBMS SAI属于 MBMS业务有效区域; 反之, 则表示不属于 MBMS业务有效区域; 例如: 若 5比特的 bitmap取值为 { 10101 }, 则表 示序号为 { 1, 3, 5}的 MBMS SAI为 MBMS业务有效区域, 也就是说, MBMS业务有 效区域包含 MBMS SAI为 { 1000, 5001, 9008}。
3 Cell信息 根据现有技术每个小区都有唯一的标识 Cell ID, 且 Cell ID将会通过广播控制信 道 (BCCH, Broadcast Control Channel) 信息在小区内进行发送; UE通过读取 BCCH 信息即可获取该小区的 Cell ID。 本优选的实施例中, MBMS 业务有效区域由 Cell信息组成, 其中包含一个多个
Cell ID信息; 通过 Cell信息, 定义了 MBMS业务有效区域。
4 e B信息 根据现有技术 eNB拥有其自身的标识 eNB ID,可以通过不同的 eNB ID标识不同 的 eNB设备; 其中, 每个 eNB可能对应一个或多个小区。 本优选的实施例中, MBMS业务有效区域由 eNB信息组成,其中包含一个或多个 e B ID信息; 通过 eNB ID信息, 定义了 MBMS业务有效区域。
5 TA信息 根据现有技术跟踪区 (TA, Track 区域) 是由一组小区所组成的, 主要用于网络 侧寻呼的作用;这一组小区将会拥有相同的 TA取值,并且以跟踪区码(TAC, Track 区 域 Code) 的形式在各个小区的 BCCH上进行发送; UE通过读取 BCCH信息中的跟 踪区码, 即可获知自身所处的 TA位置。 本优选的实施例中, MBMS业务有效区域由 TA信息组成, 其中包含一个或多个 TAC信息; 通过 TAC信息, 定义了 MBMS业务有效区域。 6 坐标和半径 本优选的实施例中, MBMS业务有效区域由坐标和半径信息组成, 坐标信息的获 取可以是 GPS获得 (经、 纬度) 以及相应的有效半径; 通过坐标和半径信息, 可以获 得一定的范围, 该范围即对应 MBMS业务有效区域信息。 第二步, MCE接收到 MBMS业务有效区域信息。 MCE收到由 MBMS SAI索弓 |、 MBMS SAI bitmap、 Cell信息、 eNB信息、 TA信 息、 坐标和半径信息组成的 MBMS业务有效区域信息后, MCE将会根据上述信息对 应相应的 MBSFN Area, 在相应的 MBSFN Area的 MCCH上发送该 MBMS业务的有 效区域指示信息。 本发明还提供了一种 MBMS业务的传输系统, 如图 4所示, 包括: 网络侧第一网 元 402和网络侧第二网元 404, 其中, 所述网络侧第一网元 402, 设置为将 MBMS业 务有效区域信息发送给网络侧第二网元 404; 所述网络侧第二网元 404, 与所述网络侧 第一网元 402通信, 设置为将指示信息发送给终端, 其中, 所述指示信息用于指示所 述 MBMS业务有效区域信息对应的 MBMS业务有效区域。 在本发明中, 通过通知 UE其所对应的 MBMS业务有效区域, 使得 UE能够在该 有效区域内进行 MBMS业务的接收, 而在其他非有效区域内不接收, 从而减少了 UE 的功耗, 提高了接收效率。 优选的, 根据本发明实施例的 MBMS业务的传输系统还包括: 所述终端 406, 设 置为接收所述网络侧第二网元 404 发送的所述指示信息, 并在所述指示信息指示的 MBMS业务有效区域内接收 MBMS业务。 优选的, 所述网络侧第一网元 402 为广播组播业务中心 (BM-SC), 所述网络侧 第二网元 404为多小区 /多播协同实体 (MCE)。 优选的, 所述 MBMS业务有效区域包括: 用于为所述终端提供有效的 MBMS业 务的小区。 优选的,所述 MBMS业务有效区域信息包括: MBMS SAI列表,其中,所述 MBMS SAI列表中的每个 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: MBMS SAI索引, 其中, 每个所 述 MBMS SAI索引对应的 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的 小区。在本优选的实施例中, 通过索引来表示 MBMS业务有效区域, 节省了传输的数 据量, 提高了传输效率。 优选的,所述 MBMS业务有效区域信息包括: MBMS SAI位图,其中,所述 MBMS SAI位图中的每个比特对应于一个 MBMS SAI, 每个取值为 1 的比特所对应的所述 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。 在本优选的实施例 中, 通过位图来表示 MBMS业务有效区域, 节省了传输的数据量, 提高了传输效率。 优选的, 所述 MBMS业务有效区域信息包括: Cell lD, 其中, 每个 Cell ID对应 于一个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: e B ID, 其中, 每个 e B ID对应 于一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: TAC信息, 其中, 每个 TAC信息 对应的 TA表示一个或多个用于提供有效的 MBMS业务的小区。 优选的, 所述 MBMS业务有效区域信息包括: 所述 MBMS业务有效区域的中心 点坐标信息和半径信息。 优选的,所述为所述终端提供有效的 MBMS业务的小区指的是如下小区: 在所述 小区中所述 MBMS业务生效, 能够被所述终端接收。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种多媒体广播和组播业务 MBMS业务的传输方法, 包括:
网络侧第一网元将 MBMS业务有效区域信息发送给网络侧第二网元; 所述网络侧第二网元将指示信息发送给终端, 其中, 所述指示信息用于指 示所述 MBMS业务有效区域信息对应的 MBMS业务有效区域。
2. 根据权利要求 1所述的方法, 其中, 所述网络侧第二网元将指示信息发送给终 端之后, 还包括:
终端接收所述网络侧第二网元发送的所述指示信息;
所述终端在所述指示信息指示的 MBMS业务有效区域内接收 MBMS业务。
3. 根据权利要求 1所述的方法, 其中, 所述 MBMS业务有效区域包括: 用于为所 述终端提供有效的 MBMS业务的小区。
4. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: MBMS SAI列表, 其中, 所述 MBMS SAI列表中的每个 MBMS SAI 表示一个或多个用于提供有效的 MBMS业务的小区。
5. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: MBMS SAI索弓 |, 其中, 每个所述 MBMS SAI索引对应的 MBMS SAI 表示一个或多个用于提供有效的 MBMS业务的小区。
6. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: MBMS SAI 位图, 所述 MBMS SAI 位图中的每个比特对应于一个 MBMS SAI, 其中, 每个取值为 1的比特所对应的所述 MBMS SAI表示一个或 多个用于提供有效的 MBMS业务的小区; 或者,每个取值为 0的比特所对应的 所述 MBMS SAI表示一个或多个用于提供有效的 MBMS业务的小区。
7. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: Cell lD, 其中, 每个 Cell ID对应于一个用于提供有效的 MBMS业务 的小区。
8. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: e B ID,其中,每个 e B ID对应于一个或多个用于提供有效的 MBMS 业务的小区。
9. 根据权利要求 1至 3中任一项所述的方法,其中,所述 MBMS业务有效区域信 息包括: TAC信息, 其中, 每个 TAC信息对应的 TA表示一个或多个用于提供 有效的 MBMS业务的小区。
10. 根据权利要求 1所述的方法, 其中, 所述 MBMS业务有效区域信息包括: 所述 MBMS业务有效区域的中心点坐标信息和半径信息。
11 根据权利要求 3所述的方法,其中,所述为所述终端提供有效的 MBMS业务的 小区指的是如下小区:在所述小区中所述 MBMS业务生效, 能够被所述终端接 收。
12 根据权利要求 1所述的方法, 其中, 所述网络侧第一网元为广播组播业务中心 BM-SC, 所述网络侧第二网元为多小区 /多播协同实体 MCE。
13. 根据权利要求 12所述的方法,其中,所述网络侧第二网元将指示信息发送给终 端的步骤包括:
所述 MCE将所述 MBMS业务有效区域信息转换成能被演进基站 eNB识别 的指示信息;
所述 eNB将所述能被演进基站 eNB识别的指示信息发送给所述终端。
14. 一种多媒体广播和组播业务 MBMS业务的传输系统,包括: 网络侧第一网元和 网络侧第二网元, 其中,
所述网络侧第一网元,设置为将 MBMS业务有效区域信息发送给网络侧第 二网元;
所述网络侧第二网元, 设置为将指示信息发送给终端, 其中, 所述指示信 息用于指示所述 MBMS业务有效区域信息对应的 MBMS业务有效区域。
15. 根据权利要求 14所述的系统, 其中, 还包括: 所述终端, 设置为接收所述网络 侧第二网元发送的所述指示信息,并在所述指示信息指示的 MBMS业务有效区 域内接收 MBMS业务。
6. 根据权利要求 14或 15所述的系统, 其中, 所述网络侧第一网元为广播组播业 务中心 BM-SC, 所述网络侧第二网元为多小区 /多播协同实体 MCE。
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