WO2011003287A1 - 多媒体广播组播业务的调度处理方法及下层网元 - Google Patents

多媒体广播组播业务的调度处理方法及下层网元 Download PDF

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Publication number
WO2011003287A1
WO2011003287A1 PCT/CN2010/070012 CN2010070012W WO2011003287A1 WO 2011003287 A1 WO2011003287 A1 WO 2011003287A1 CN 2010070012 W CN2010070012 W CN 2010070012W WO 2011003287 A1 WO2011003287 A1 WO 2011003287A1
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Prior art keywords
scheduling
network element
scheduling period
layer network
mbms service
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PCT/CN2010/070012
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English (en)
French (fr)
Inventor
翟恒星
艾建勋
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to JP2012518732A priority Critical patent/JP5726867B2/ja
Priority to KR1020127003220A priority patent/KR101386155B1/ko
Priority to US13/257,897 priority patent/US8855037B2/en
Priority to EP10796664.0A priority patent/EP2442523B1/en
Publication of WO2011003287A1 publication Critical patent/WO2011003287A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1881—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with schedule organisation, e.g. priority, sequence management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to a scheduling processing method for a multimedia broadcast multicast service and a lower layer network element.
  • 3GPP 3rd Generation Partnership Project
  • MBMS Multimedia Broadcast and Multicast Service
  • MBSFN Single Frequency Network
  • the characteristics of MBMS multi-cell transmission include: 1) synchronous transmission in MBSFN area; 2) support multi-cell MBMS transmission and combining; 3) multicast traffic channel (Mocked Traffic Channel, MTCH for short) and multicast control channel (Multicast Control Channel) , referred to as MCCH) mapped to the MCH transport channel in pTm (point-to-multipoint) mode; 4) MBSFN sync zone i or MBSNF zone, MBSFN transmission, advertisement and reserved cell are semi-statically configured by operation and maintenance.
  • User equipment UE for a plurality of cells
  • Multiple cells that transmit the same MBMS service using the same physical resource and MBSFN transmission mode constitute an MBSFN area i or.
  • MBSFN area i or a plurality of MBSFN services is included, and all MBSFN services belonging to the same MBSFN area i or are referred to as one MBSFN service group.
  • Each cell in an MBSFN area is configured with exactly one MBSFN service group.
  • the MTCH with the same MBSFN area i or multiple MBSFN services and the MCCH of the MBSFN service can be multiplexed into one multicast channel (Multicast Channel, MCH for short) oblige MCCH and multiple MTCHs of the same MBSFN area (ie multiple logics)
  • the channel can be mapped to the same transport channel MCH.
  • multiple MTCHs uploaded by each MCH can use the dynamic scheduling method to complex two or more MTCHs. Used in the same MBSFN A sub-frame occupies part of the resources of the sub-frame.
  • the MSAP occasion is used to indicate that all the multicast resources included in the MCH corresponding to an MSAP in a dynamic scheduling period.
  • MTCH and dynamic scheduling information can be sent in one MSAP occasion, and can also include MCCH.
  • the dynamic scheduling information can be used in the Media Access Control (MAC) control part or on a separate logical channel, that is, the Multicast Scheduling Channel (MSCH) concert MSAP occasion
  • MAC Media Access Control
  • MSCH Multicast Scheduling Channel
  • the length of an MSAP occasion is one scheduling period, also called a dynamic scheduling period.
  • One MCH is allocated by MSAP.
  • One or more MBSFN subframes in one or more MBSFN frames, where the subframes transmitted in the multicast mode are referred to as MBSFN subframes, and the frames containing the MBSFN subframes are referred to as MBSFN frames.
  • the MSAP occasions carry the dynamic scheduling information (also referred to as scheduling information), and carry the mapping information of the MTCH to the auxiliary MSAP subframe, and the mapping information may pass the MBSFN subframe in one scheduling period.
  • the index relationship determines that the UE can obtain the MBSFN subframe in which each MTCH is located according to the scheduling information, so that the MTCH required by the UE can be obtained, and the unnecessary MBSFN subframe is ignored, so as to improve the MBMS service receiving efficiency of the UE, and save Specifically, the MBSFN subframe number can be determined by: all the MBSFN subframes allocated by one MCH in one scheduling period are sequentially arranged and numbered sequentially. For example, the MBSFN subframe allocated by the MCH channel in one cycle. The total number is 100, and the subframe number is from 0 JiJ 99, or 1 JiJ 100.
  • multiple logical channels are multiplexed by the MCH channel in the following manner: one subframe corresponds to one transmission time interval (TTI)
  • TTI transmission time interval
  • One or more transport data blocks may be transmitted in one TTI
  • PDU MAC protocol data unit
  • PDU MAC protocol data unit
  • multiple MAC months may be included.
  • SDU Service Data Unit
  • each MAC SDU can come from different logical channels (including: MTCH, MCCH, MSCH, etc.).
  • Step S102 The upper layer network element sends an MBMS service data packet to each lower layer network element, where the service data packet carries service data.
  • the upper layer network element identifies the same timestamp information for one or more consecutive service data packets, and the data packets marked with the same timestamp form a packet A data burst or synchronization sequence 'J ( synchronization Sequence )).
  • the timestamp information of each data packet can be set in the following two ways: (1) including, in each of the foregoing data packets, reference time information that the synchronization sequence starts to be sent on the wireless interface; Each packet in the above synchronization sequence contains reference time information that a synchronization sequence starts transmitting at the radio interface.
  • Step S104 The lower layer network element sends the service data packet to the radio interface in sequence according to the transmission timing of the service data packet in the same synchronization sequence, and the upper layer network element sends the service data packet to each lower layer network element.
  • the above information is completely consistent, and the lower layer network elements can perform completely consistent processing, so that the MBMS service is synchronously transmitted between cells of each lower layer network element.
  • Step 106 The lower layer network element allocates a radio interface resource for one or more MBMS services on the radio interface, and the resource may be exclusive to one MBMS, or may be a resource shared by multiple services through time division multiplexing.
  • the MBMS service shares the resources of one MCH channel through dynamic multiplexing, or in the UMTS system, multiple MBMS services share the same SCCPCH channel resource through the MBSFN mode.
  • the channel resources of the foregoing MBMS service are generally configured in a static or semi-static manner, that is, the resources are not adjusted according to the amount of service data to be sent in each scheduling period in a certain period of time, thereby During a certain period of time or scheduling period, the data volume of one MBMS or multiple multiplexed MBMS services exceeds the transmission capability of the transmission channel within a certain period of time. In this case, the lower layer network element will be redundant. The data is discarded.
  • the priority of the service of the lower layer network element determines the service that needs to discard the data.
  • This situation is called data overflow.
  • the services S 1 and S2 are shared.
  • the same channel, time period 1 and time period 2 in Figure 1 can be two scheduling periods, service
  • the data SI has service data to be sent in both the time period 1 and the time period 2.
  • the service data quantity of S1 and S2 exceeds the maximum capability that the corresponding channel resource can be transmitted in the time period, part of the service data of S2 cannot be transmitted.
  • the traffic of the service data varies greatly in different time periods, that is, the service data that needs to be sent in different scheduling periods may be different, especially in one.
  • a service shares one channel or multiple service multiplex channels and the number of services is relatively small.
  • the resource configuration cannot be increased infinitely to meet the change of service traffic. Therefore, according to the existing service data scheduling method, service data may be lost, which directly leads to a decline in service quality.
  • a scheduling processing method for a multimedia broadcast multicast service is provided.
  • the method is used by each lower layer network element to perform scheduling processing on received data of an MBMS service from an upper layer network element.
  • the method for scheduling a multimedia broadcast multicast service according to the present invention includes: the lower layer network element receives information indicating a scheduling period of the MBMS service sent by the specified network element; and the lower layer network element follows the MBMS indicated in the information.
  • the scheduling period of the service performs scheduling processing on the received data of the MBMS service.
  • an under layer network element is provided.
  • the lower layer network element according to the present invention includes: a first receiving unit, a second receiving unit, and a scheduling processing unit.
  • the first receiving unit is configured to receive data of the MBMS service from the upper layer network element
  • the second receiving unit is configured to receive information indicating a scheduling period of the MBMS service from the specified network element
  • the scheduling processing unit is configured to The scheduling period of the MBMS service indicated by the information received by the second receiving unit performs scheduling processing on data of the MBMS service received by the first receiving unit.
  • the lower layer network element performs scheduling processing on the received data of each MBMS service according to the scheduling period of each MBMS service, thereby avoiding the problem of loss of service data due to insufficient resource allocation, thereby improving MBMS. Service quality of business the amount.
  • FIG. 1 is a schematic diagram of a scheduling block and a plurality of MTCH multicast resources thereof in the related art
  • FIG. 2 is a logical structure frame diagram of an upper layer network element and a lower layer network element
  • FIG. 3 is a schematic diagram of the implementation according to the present invention.
  • FIG. 4 is a schematic diagram of data scheduled in the MCH in the first embodiment
  • FIG. 5 is a schematic diagram of data scheduled in the MCH in the second embodiment
  • the MBMS service channel resource is configured in a static or semi-static manner in the prior art, so that the data amount of the MBMS service exceeds the channel during the certain period of time or a certain scheduling period.
  • the present invention provides an improved scheduling scheme for MBMS services, which causes a problem of partial MBMS service data loss.
  • the designated network element sends the information indicating the scheduling period of the MBMS service to the lower layer network element, and the lower layer network element performs the data of the MBMS service sent by the upper layer network element according to the scheduling period of each MBMS service. Scheduling processing.
  • the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • the preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. Before describing the embodiments of the present invention, the upper layer network element and the lower layer network element according to the embodiment of the present invention are first described.
  • the upper layer network element is configured to complete the scheduling of the received MBMS service data packet.
  • the upper layer network element marks the timestamp information of each service data packet, and refers to the service data packet marked with the same timestamp information as a synchronization sequence. , or a synchronization sequence, after which the timestamp information packet is sent to one or more lower layer network elements belonging to the upper layer network element.
  • the lower layer network element is configured to receive each service data packet sent by the upper layer network element, and calculate a start time for starting to send a synchronization sequence according to the timestamp information of each service data packet, in a radio link control (Radio Link Control, referred to as In the RLC) protocol layer processing, the data packet of the same synchronization sequence is subjected to RLC concatenation processing, and the service data packet processed by the radio network layer user plane protocol is transmitted on the radio interface.
  • the lower layer network element performs an RLC reset at the beginning of each synchronization sequence, and the sequence of the RLC protocol layer is restarted.
  • FIG. 2 is a schematic structural diagram of the upper layer network element and the lower layer network element.
  • an upper layer network element is connected to multiple lower layer network elements for signaling interaction.
  • an upper layer network element and one or more lower layer network elements belonging to the upper layer network element may be the same network element in physical function, or may be different network elements, and are divided into upper layer network elements.
  • the lower-layer network element is only a logical division, in order to cooperate to complete the service synchronization function, that is, if thousands of the same or different physical network elements are logically divided into an upper layer network element and a thousand lower layer network elements according to logical functions.
  • the network elements cooperate to implement the MBMS service sent by the multi-cell combination mode between the cells of the lower layer network element.
  • the upper network element and the lower layer network element may be a combination of the following network elements, but are not limited to the following combinations: Combination one, MBMS service in a UMTS Terrestrial Radio Access Network (UTRAN) system
  • the upper layer network element is the upper layer radio network controller (Radio Network Controller, RNC for short)
  • the lower layer network element is the lower layer RNC.
  • the interface between the upper layer network element and the lower layer network element is the Iur interface.
  • the upper network element and the lower layer network element are network elements with the same physical function.
  • the upper-layer network element is the monthly general-purpose packet radio industry.
  • the Gateway General Packet Radio Service Supporting Node GGSN
  • the Serving General Packet Radio Service Support Node SGSN
  • the Broadcast and Multicast Service Center Broadcast and Multicast Service Center
  • the lower layer network element is the RNC or the node plus (NB+)• 3.
  • the upper layer network element is a multimedia gateway (Media GateWay, referred to as MGW) or multimedia broadcast multicast coordination.
  • MGW Media GateWay
  • eNB E-UTRAN NodeB
  • the present invention provides a scheduling processing method for the MBMS service, which is used by each lower layer network element to receive the received The data of one or more MBMS services of the upper layer network element is scheduled.
  • a scheduling processing method for an MBMS service is first provided.
  • FIG. 3 is a flowchart of a method for scheduling an MBMS service according to an embodiment of the present invention. As shown in FIG. 3, for each lower layer network element belonging to an upper layer network element, the upper layer network element is received.
  • the scheduling processing method of the MBMS service mainly includes the following steps (step S301 - step S303):
  • Step S301 The lower layer network element receives the information sent by the specified network element.
  • Step S303 The lower layer network element performs scheduling processing on the received data of the one or more MBMS services according to the scheduling period of the one or more MBMS services.
  • data of one or more MBMS services (corresponding to one or more MTCHs) is mapped to one MCH, and the lower layer network element schedules the one or more MBMS services in a predetermined scheduling period of the MCH.
  • the data Specifically, the lower layer network element may schedule the data of the one or more MBMS services in the transmission scheduling period of the MCH according to a preset sequence and/or a preset scheduling amount; and, in order to facilitate the UE to acquire the required Data, all the transmissions that need to be sent during the transmission scheduling period can be set in each transmission scheduling period of the MCH.
  • the scheduling information includes: indicating that each of the transmission scheduling periods is sent The subframe position of the MBMS service (specifically, it can be determined by the subframe number).
  • any two different scheduling periods in the scheduling period of the one or more MBMS services, and the long scheduling period is an integer multiple of a short scheduling period, for example, assuming a total of three MBMS services, where The scheduling period of the MBMS service with the shortest scheduling period is 100 ms. If the scheduling period of the other two MBMS services is different from the scheduling period of the MBMS service, the scheduling period of the other two MBMS services is an integer of the scheduling period of the MBMS service.
  • the transmission scheduling period of the MCH may be determined according to any of the following methods:
  • the upper layer network element indicates the transmission scheduling period of the lower layer network element MCH by signaling
  • the designated network element determines the transmission scheduling period of the MCH according to the scheduling period of the one or more MBMS services, and sends the transmission scheduling period to the lower layer network element.
  • the network element includes: a multimedia broadcast multicast coordination entity;
  • the lower layer network element determines the transmission scheduling period of the MCH according to the received scheduling period of the one or more MBMS services.
  • the order in which the lower layer network element determines the data for scheduling the one or more MBMS services includes, but is not limited to, one of the following: (1) scheduling according to the priority order of the one or more MBMS services, specifically, the lower layer network The element may first schedule the MBMS service with higher priority in the transmission scheduling period of the MCH, and then schedule the MBMS service of the first level of the preference level, and then dance to all the MBMS services that need to be scheduled in the transmission scheduling period. ;
  • the lower layer network element may first schedule the MBMS service with the best quality of service in the MCH transmission scheduling period, and then schedule the service quality to be slightly lower. MBMS service, until all MBMS services required for the transmission scheduling period are scheduled;
  • the lower layer network element may first schedule the MBMS service with the shortest scheduling period in the MCH transmission scheduling period, and then schedule the MBMS service with the scheduling period slightly longer.
  • the sequence of scheduling the respective MBMS services is exemplified in the embodiment of the present invention, it is not limited thereto. In the specific implementation process, the MBMS services may be scheduled in other sequences.
  • the manner of determining includes, but is not limited to, one of the following:
  • the multimedia broadcast multicast service to be scheduled in the period includes: S1, S2 Sn, and the amount of data that each multimedia broadcast multicast service needs to schedule during the transmission scheduling period is:
  • T1 is the transmission scheduling period of the MCH
  • Tm is the multimedia broadcast Tm
  • the scheduling period of the multicast service Sm, Total m is the total amount of data of the multimedia multicast service Sm in the Tm period.
  • the transmission scheduling period of the MCH may be an integer multiple of a minimum or maximum value of a scheduling period of one or more MBMS services.
  • the scheduling processing method of the MBMS service by using the transmission scheduling period of the MCH as an example of the minimum and maximum values of the scheduling period of one or more MBMS services, in the following embodiments.
  • the transmission scheduling period of the MCH is the minimum of the scheduling period of multiple MBMS services, that is, the transmission scheduling period of the MCH is the minimum service scheduling period of multiple MBMSs.
  • the scheduling processing method of the MBMS service mainly includes the following steps:
  • the specified network element notifies the lower layer network element of the scheduling period length of the multiple multimedia broadcast multicast services
  • Each lower layer network element performs scheduling processing on the received multimedia broadcast multicast service synchronization sequence according to the received scheduling period length of the plurality of multimedia broadcast multicast services.
  • each multimedia broadcast multicast service synchronization sequence corresponds to a scheduling period length
  • multiple MTCHs are mapped to one MCH
  • the MCH corresponds to a scheduling period of multiple MBMS services.
  • the transmission scheduling period of the MCH can be determined as follows:
  • the upper layer network element indicates that the transmission scheduling period of the lower layer network element MCH is the minimum scheduling period by signaling;
  • the multimedia broadcast multicast coordination entity selects the minimum service scheduling period according to the scheduling period of each MBMS service.
  • the length, and the length of the minimum service scheduling period is notified to the lower layer network element (ie, the eNB), and the lower layer network element uses the period length as the transmission scheduling period of the MCH;
  • the lower layer network element for example, the eNB
  • the scheduling periods of the multiple MBMSs are arranged in the order of length to length.
  • the long service scheduling period is a short service scheduling period. Integer multiple.
  • the transmission scheduling period of the MCH transport channel is the smallest service scheduling period.
  • corresponding scheduling information is placed in each minimum scheduling period.
  • the scheduling information includes scheduling information of all multimedia broadcast multicast services that need to be sent in the minimum scheduling period, for example, indicating a subframe position where multiple MBMS services are located in the minimum scheduling period, and the like.
  • the lower layer network element may perform multiple multiple MBMS services in the following sequence. Data for scheduling:
  • the multimedia broadcast multicast service with the highest priority is scheduled in the minimum scheduling period, and the multimedia broadcast multicast service with the lower priority is scheduled.
  • the lower layer network element first places the service data with the highest priority into the channel resource starting from the MBSFN subframe corresponding to the timestamp, and then places the service data with the lower priority to the MBSFN subframe corresponding to the timestamp. And there is no occupied channel resource location, and so on, the service data of the multi-scheduling period is placed.
  • the multimedia broadcast multicast service with the best quality of service is scheduled in the minimum scheduling period, and the multimedia broadcast multicast service with a slightly lower quality of service is scheduled.
  • the lower layer network element first places the service data with the best quality of service into the channel resource starting from the MBSFN subframe corresponding to the timestamp, and then places the service data with poor service quality into the MBSFN subframe corresponding to the timestamp. Start, and there is no occupied channel resource location, and so on, to place business data for multiple scheduling periods.
  • the multimedia broadcast multicast service with the shortest scheduling period is scheduled in the minimum scheduling period, and then the multimedia broadcast multicast service with a slightly longer period is scheduled.
  • the lower layer network element firstly puts the service data of the minimum scheduling period into the channel resource starting from the MBSFN subframe corresponding to the timestamp, and then places the data of the service with a slightly longer scheduling period to the MBSFN subframe corresponding to the timestamp. And there is no channel resource location occupied by the minimum period of service data, and so on, the data of the MBMS service corresponding to each scheduling period is placed.
  • the lower-layer network elements can sequentially schedule the data of multiple services according to the order in which the services are sent or the priorities of the corresponding resources.
  • the lower layer network element may schedule data of each multimedia broadcast multicast service in the following manner:
  • T1 is the minimum scheduling period and Tm is the multimedia broadcast multicast service Tm
  • the scheduling period of Sm, Total m is the total amount of data of the multimedia multicast service Sm in the Tm period.
  • (2) Time scheduling In the minimum scheduling period, according to the time requirement, multiple multimedia broadcast multicast services are arranged according to the length of the scheduling period. During each minimum scheduling period, the multimedia broadcast multicast service data with a short scheduling period is preferentially scheduled, and the multimedia broadcast multicast service data with a long scheduling period is scheduled. For example, as shown in FIG. 4, two multimedia broadcast multicast services, real-time service S1 and non-real-time service S2, have scheduling periods T1 and T2, respectively, and T2 is twice T1. When two multimedia broadcast multicast services are mapped to the same MCH channel, the MCH has two service scheduling periods, namely T1 and T2.
  • the multimedia broadcast multicast service S2 with the scheduling period of ⁇ 2 is allocated to the corresponding two scheduling periods of T1 for scheduling.
  • the scheduling information in each scheduling period T1 includes: scheduling information of the multimedia broadcast multicast service S1, or scheduling information of the multimedia broadcast multicast service S1 and the multimedia broadcast multicast service S2. All data in the scheduling period T1 of the scheduled multimedia broadcast multicast service S1 and half of the data in the scheduling period ⁇ 2 of the multimedia broadcast multicast service S2 in each scheduling period T1.
  • the transmission scheduling period of the MCH is an integer multiple of the maximum value of the scheduling period of multiple MBMS services (specifically, the maximum value is 1, 2, 3 times, and ⁇ is greater than or equal to 1), that is,
  • the transmission scheduling period of the MCH is an integer multiple of the maximum service scheduling period of multiple MBMSs.
  • the method for determining the transmission scheduling period of the MCH is similar to that of the first embodiment. The difference is that the determined transmission scheduling period is the maximum value of the scheduling period of each MBMS, which is not specifically mentioned.
  • the segmentation is performed according to the maximum scheduling period in each MBMS service, it is only necessary to place corresponding scheduling information in the transmission scheduling period of the MCH, and the other locations do not need to place scheduling information. That is, compared with the embodiment, in the maximum scheduling period of each MBMS service, the number of scheduling information is less than that in the first embodiment, and may be scheduled and sent multiple times in one transmission scheduling period of the MCH.
  • the scheduling information set in one transmission scheduling period includes scheduling information of all multimedia broadcast multicast services that need to be sent during the transmission scheduling period, for example, indicating that multiple multimedia broadcast multicast service data are located in multiple different scheduling periods. Frame position, etc.
  • the order in which the lower layer network element schedules the data of each MBMS service is similar to that in the first embodiment, and is not mentioned here.
  • the determination of the scheduling amount is similar to that of the first embodiment.
  • the transmission scheduling period of the MCH is an integer multiple of the maximum scheduling period of each MBMS service, because jtb, if the average scheduling is used
  • the method determines the amount of data scheduled by an MBMS service in one transmission scheduling period in the MCH, and the value of T1 is the transmission scheduling period (ie, an integer multiple of the maximum scheduling period).
  • T1 is the transmission scheduling period (ie, an integer multiple of the maximum scheduling period).
  • FIG. 5 is a schematic diagram of data scheduled in a transmission scheduling period of the MCH in the embodiment.
  • two multimedia broadcast multicast services real-time service S1 and non-real-time service S2, respectively, have scheduling Cycles T1 and T2, and T2 is twice T1.
  • the MCH selection can select a scheduling period, that is, T2, which is twice the maximum service scheduling period.
  • the multimedia broadcast multicast service S1 with the scheduling period of T1 is allocated to the corresponding scheduling period of T2 for scheduling.
  • the scheduling information in each scheduling period T2 includes scheduling information of the multimedia broadcast multicast service S1 and the multimedia broadcast multicast service S2 in the scheduling period T2.
  • FIG. 6 is a schematic structural diagram of a lower layer network element according to an embodiment of the present invention. As shown in FIG.
  • the lower layer network element mainly includes: a first receiving unit 61, a second receiving unit 63, and Scheduling processing unit 65.
  • the first receiving unit 61 is configured to receive data of one or more MBMS services from the upper layer network element
  • the second receiving unit 63 is configured to receive a scheduling period of the one or more MBMS services from the specified network element.
  • the information processing unit 65 is connected to the first receiving unit 61 and the second receiving unit 63 for receiving the one or more MBMSs received by the first receiving unit 61 according to the scheduling period of the one or more MBMS services. The data of the business is scheduled.
  • the scheduling period of each MBMS service is sent to each lower-layer network element by the specified network element, so that each lower-layer network element can learn from each
  • the scheduling period of the MBMS service determines the transmission scheduling period of the MCH, and performs scheduling processing on the received data of each MBMS service according to the scheduling period of each MBMS service, thereby avoiding the problem of loss of service data due to resource allocation failure. , improve the quality of service of the MBMS business.

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  • Mobile Radio Communication Systems (AREA)

Description

多媒体广播组播业务的调度处理方法及下层网元 技术领域 本发明涉及移动通信技术领域，尤其涉及一种多媒体广播组播业务的调 度处理方法及下层网元。 背景技术 目前， 第三代合作伙伴计划 （ 3rd Generation Partnership Project, 简称为 3GPP ) 提出了多媒体广播多播业务 （Multimedia Broadcast and Multicast Service, 简称为 MBMS ), 利用该业务可以实现从一个数据源到多个目标的 数据传送。 在 LTE中， MBMS业务可以釆用多播模式方式发送， 该发送模式称为 单频网多播广播 ( Multicast/Broadcast over Single Frequency Network, 简称为 MBSFN )发送模式， 釆用多播模式发送的 MBMS业务称为 MBSFN业务。 MBMS多小区传输的特征包括： 1 )在 MBSFN区域内同步传输； 2 ) 支持多 小区 MBMS传输合并； 3 ) 多播业务信道 （ Multicast traffic Channel, 简称为 MTCH )和多播控制信道（ Multicast Control Channel，简称为 MCCH )在 p-T-m (点到多点）模式下映射到 MCH 传输信道上； 4 ) MBSFN同步区 i或、 MBSNF 区域、 MBSFN 传输、 广告及保留小区均由操作维护半静态配置。 多个小区 的用户设备（ User equipment,简称为 UE )可以接收到多个内容相同的 MBMS 数据并进行 SFN合并，从而可以提高接收信号的增益。釆用相同的物理资源、 MBSFN发送模式发送相同 MBMS业务的多个小区构成了一个 MBSFN区 i或。 在 LTE组网中， 一个 MBSFN 区 i或上包括多个 MBSFN业务， 属于同一个 MBSFN区 i或的所有 MBSFN业务称为一个 MBSFN业务组。一个 MBSFN区 域中的每个小区均配置了完全相同的一个 MBSFN 业务组。 具备相同的 MBSFN区 i或的多个 MBSFN业务的 MTCH以及 MBSFN业务的 MCCH可以 复用到一条多播信道（ Multicast Channel, 简称为 MCH )„ 相同 MBSFN区域 的 MCCH和多个 MTCH (即多条逻辑信道）可以映射到同一传输信道 MCH 上。 如图 1所示，为提高 MTCH的发送效率，每个 MCH上 载的多个 MTCH 可以釆用动态调度的方法，将 2个或 2个以上的 MTCH复用在同一个 MBSFN 子帧上并占用该子帧的部分资源。 在现有技术中， 利用 MSAP时机 （MSAP occasion ) 来指示一个动态调度周期内某个 MSAP所对应的 MCH所包括全 部多播资源。在一个 MSAP occasion中可以发送多个 MTCH和动态调度信息， 还可以包括 MCCH。 动态调度信息可以承载用在媒体接入控制层 （ Media Access Control, 简称为 MAC )控制部分或者 载在单独的逻辑信道， 即多 播调度信道 （ Multicast Scheduling channel, 简称为 MSCH )„ MSAP occasion 长度一般为 320ms, 同样， 一个动态调度周期 （可以简称为调度周期） 一般 为 320ms, 也可以是 2n X 320ms ( n=-3 , -2, -1 , 0, 1 , 2, 3 , 4... .. N ), 相 应地， MSAP occasion长度为 40ms, 80ms, 160ms, 320ms, 640ms, 1280ms 等。 一个 MSAP occasion时间长度为一个调度周期， 也称为一个动态调度周 期。 一条 MCH通过 MSAP分配的一个或多个 MBSFN 帧中的一个或多个 MBSFN子帧，其中釆用多播模式发送的子帧称为 MBSFN子帧，含有 MBSFN 子帧的帧称为 MBSFN帧。 在一条 MCH所配置的每个 MSAP occasion上承载了动态调度信息（也 可以简称为调度信息）， 携带 MTCH到辅助 MSAP子帧的映射信息， 该映射 信息可以通过在一个调度周期内的 MBSFN子帧编号索引关系确定， 才艮据调 度信息， UE可获知每个 MTCH所在的 MBSFN子帧， 从而可以获取其需要 的 MTCH, 而忽略不需要的 MBSFN子帧， 以提高 UE的 MBMS业务接收效 率， 节省电能消耗。 具体地， MBSFN子帧编号可以通过以下方式确定： 将一个 MCH在一 个调度周期内所分配的所有 MBSFN 子帧按照顺序排列， 依次编号。 例如 MCH信道在一个周期内分配的 MBSFN子帧数目总量为 100, 则子帧编号从 0 JiJ 99， 或者 1 JiJ 100。 在现有 LTE技术中， 多个逻辑信道通过如下的方式复用 MCH信道：一 个子帧对应一个传输时间间隔（ TTI ), 在一个 TTI内可以发送一个或多个传 输数据块，每个传输数据块对应一个 MAC协议数据单元（ Protocol Data Unit, 简称为 PDU )。 在一个 MAC PDU 中， 可以包含多个 MAC 月艮务数据单元 ( Service Data Unit, 简称为 SDU ), 各个 MAC SDU可以来自不同的逻辑信 道 （包括： MTCH, MCCH, MSCH等；)。 对 MBMS业务的动态复用， 在一个调度周期内， 一个 MTCH或者说一 个 MBMS业务的数据是连续的发送， 即一个业务的数据连续的占用 MCH信 道的 MBSFN子帧资源， 直到该业务在该调度周期内需要发送的业务数据全 部发送完毕。 不同业务的数据可以在同一个 MBSFN子帧内发送， 即同一个 MAC PDU中可以由来自不同的 MBMS业务的业务数据串接在一起发送。 在相关技术中公开一种同步十办议处理 ( SYNC )方法， 该 SYNC方法包 括以下处理： 步骤 S 102, 上层网元发送 MBMS业务数据包到各下层网元， 该业务数 据包承载了业务数据， 并携带时间戳信息、 数据包序列号信息、 累计的业务 数据长度信息等， 上层网元对一个或多个连续业务数据包标识相同的时间戳 信息， 标记有相同时间戳的数据包组成一个数据突发 （data burst ) 或称为同 步序歹 'J ( synchronization Sequence )。 目前， 可以通过下述两种方式设置每个数据包的时间戳信息： （ 1 )在上 述的同步序列包含的每个数据包中包含该同步序列在无线接口开始发送的参 考时间信息； （2 ) 在上述的同步序列中的每个数据包中包含一个同步序列在 无线接口开始发送的参考时间信息。 步骤 S 104, 下层网元对同一个同步序列中的业务数据包所携带的业务 数据在其时间戳对应的发送时机开始在无线接口依次发送业务数据包， 由于 上层网元发送到各下层网元的上述信息完全一致， 各下层网元可以进行完全 一致的处理， 从而实现了 MBMS业务在各下层网元的小区间同步发送。 步骤 106, 下层网元在无线接口为一个或者多个 MBMS业务分配无线 接口资源， 该资源可以是为一个 MBMS 独享的， 也可以是多个业务通过时 分复用共享的资源。 如 LTE 系统中， MBMS 业务通过动态复用方式共享一 个 MCH信道的资源， 或如 UMTS 系统中， 多个 MBMS业务通过 MBSFN 方式共享同一个 SCCPCH信道资源。 由于上述 MBMS业务的信道资源一般釆用静态或者半静态方式配置， 也就是说， 在一定的时间段内上述的资源不会根据每个调度周期内需要发送 的业务数据的多少进行调整， 从而使得在某一个特定的时间段或者调度周期 内， 一个 MBMS或多个复用的 MBMS业务的数据量超过了传输信道在特定 时间段的内的发送能力， 在这种情况下， 下层网元将多余的数据丢弃。 在多 个业务复用到同一信道的情况下， 下层网元 居业务的优先级决定需要丢弃 数据的业务， 这种情况称为数据溢出， 例如， 如图 1所示， 业务 S 1和 S2共 享同一个信道， 在图 1中的时间段一和时间段二可以是两个调度周期， 业务 数据 S I根据 SYNC协议， 在时间段一中和时间段二都有业务数据需要发送。 在时间段一中， 因为 S 1和 S2的业务数据量超过了时间段一所对应的信道资 源能发送的最大能力， 从而使得 S2的部分业务数据不能被发送。 如上所述， 由于 MBMS业务的动态特性， 业务数据在不同的时间段内 的流量变化很大， 也就是说， 在不同的调度周期内的需要发送的业务数据可 能相差较大， 尤其是在一个业务共享一个信道或者多个业务复用信道而业务 数量比较少的时候。 且资源配置也不可能无限增加以满足业务流量的变化， 因此， 按照现有的业务数据调度方法， 可能导致业务数据的丢失， 进而直接 导致业务服务质量的下降。 发明内容 有鉴于此，本发明提供了一种 MBMS业务的调度处理方法及下层网元， 用以解决现有技术中由于业务数据的丢失而导致月艮务质量下降的问题。 根据本发明的一个方面，提供了一种多媒体广播组播业务的调度处理方 法， 该方法用于各个下层网元对接收到的来自上层网元的 MBMS 业务的数 据进行调度处理。 才艮据本发明的多媒体广播组播业务的调度处理方法， 包括： 该下层网元 接收指定网元发送的用于指示 MBMS 业务的调度周期的信息； 上述下层网 元按照信息中指示的上述 MBMS业务的调度周期， 对接收到的上述 MBMS 业务的数据进行调度处理。 才艮据本发明的另一个方面， 提供了一种下层网元。 才艮据本发明的下层网元包括： 第一接收单元、 第二接收单元和调度处理 单元。 其中， 第一接收单元， 用于接收来自上层网元的 MBMS业务的数据； 第二接收单元， 用于接收来自指定网元的指示该 MBMS 业务的调度周期的 信息； 调度处理单元， 用于按照所述第二接收单元接收的所述信息中指示的 上述 MBMS业务的调度周期， 对第一接收单元接收到的 MBMS业务的数据 进行调度处理。 通过本发明的上述至少一个方案， 下层网元按照各个 MBMS业务的调 度周期对接收到的各个 MBMS 业务的数据进行调度处理， 可以避免由于资 源分配不足而导致业务数据丢失的问题， 从而， 提高 MBMS 业务的服务质 量。 本发明的其它特征和优点将在随后的说明书中阐述， 并且， 部分地从说 明书中变得显而易见， 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解， 并且构成说明书的一部分， 与本 发明的实施例一起用于解释本发明， 并不构成对本发明的限制。 在附图中： 图 1为相关技术中调度块及其指示多个 MTCH多播资源的示意图； 图 2为上层网元与下层网元的逻辑结构框架图； 图 3为才艮据本发明实施例的 MBMS业务的调度处理方法的流程图； 图 4为实施例一中 MCH中调度的数据的示意图； 图 5为实施例二中 MCH中调度的数据的示意图； 图 6为才艮据本发明实施例的下层网元的结构示意图。 具体实施方式 功能相克述 由于现有技术中 MBMS业务信道资源釆用静态或半静态方式配置， 从 而使得在某一时间段或某一调度周期， MBMS业务的数据量超过该信道在该 段时间内的发送能力， 从而导致部分 MBMS 业务数据丢失的问题， 本发明 实施例提供了一种改进的 MBMS业务的调度处理方案。 在本发明实施例中， 指定网元向各下层网元发送指示 MBMS 业务的调度周期的信息， 各下层网 元才艮据各个 MBMS业务的调度周期， 对上层网元发送的 MBMS业务的数据 进行调度处理。 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。 以下结合附图对本发明的优选实施例进行说明， 应当理解， 此处所描述 的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。 在说明本发明实施例之前，首先对本发明实施例涉及的上层网元和下层 网元进行描述。 上层网元用于完成对接收到的 MBMS业务数据包的调度， 具体地， 上 层网元对各业务数据包标记时间戳信息， 并将标记了相同时间戳信息的业务 数据包称为一个同步序列， 或称为一个同步序列， 此后， 将标记了时间戳信 息数据包发送给归属于该上层网元的一个或多个下层网元。 下层网元用于接收上层网元发送的各业务数据包，并根据各业务数据包 的时间戳信息， 计算开始发送一个同步序列的起始时间， 在无线链路控制 ( Radio Link Control, 简称为 RLC )协议层处理时， 对同一个同步序列的数 据包进行 RLC串接处理，并将经过了无线网络层用户面协议处理后的业务数 据包在无线接口发送。 为了提高在无线接口丢包情况下的同步恢复， 下层网 元在每个同步序列的开始进行 RLC复位，将 RLC协议层序列重新开始分配。 图 2示出了上层网元和下层网元的逻辑结构框架图， 如图 2所示， 一个 上层网元与多个下层网元相连接， 进行信令交互。 需要说明的是， 一个上层 网元和归属于该上层网元的一个或多个下层网元在物理功能上可以是相同的 网元， 也可以是不同的网元， 将其分为上层网元和下层网元只是逻辑上的划 分， 为了协作完成业务同步这样一个功能， 即若千个相同或不同的物理网元 才艮据逻辑上的功能划分为一个上层网元和若千个下层网元， 这些网元协同合 作， 在下层网元的小区间， 实现以多小区合并方式发送的 MBMS业务。 其中， 上层网元和下层网元可以是下列网元的组合方式， 但是不限于下 列的组合： 组合一， 在通用陆地无线接入网 （UMTS Terrestrial Radio Access Network, 简称为 UTRAN ) 系统的 MBMS业务同步组网中， 上层网元为上 层无线网络控制器（ Radio Network Controller , 简称为 RNC ), 下层网元为下 层 RNC, 其中， 上层网元和下层网元间的接口为 Iur接口， 在该组合中， 上 层网元和下层网元为物理功能相同的网元。 组合二， 在增强的高速分组接入系统 （ High Speed Packet Access + , 简 称为 HSPA + )的 MBMS业务同步组网中， 上层网元为月艮务通用分组无线业 务网关支持节点 ( Gateway General Packet Radio Service Supporting Node, 简 称为 GGSN )、 月艮务通用分组无线业务支撑节点（ Serving General packet radio service support node, 简称为 SGSN ) 或者广播组播业务中心 （ Broadcast and Multicast Service Center, 简称为 BMSC )。 下层网元为 RNC 或者节点加 ( NB+ )„ 组合三， 在长期演进系统 （LTE ) 的 MBMS 业务同步组网中， 上层网 元为多媒体网关（ Media GateWay , 简称为 MGW )或者多媒体广播组播协调 实体， 下层网元为演进节点 B ( E-UTRAN NodeB , 简称为 eNB )„ 在上述技术的基础上， 本发明提供一种 MBMS业务的调度处理方法， 用于各个下层网元对接收到的来自上层网元的一个或多个 MBMS 业务的数 据进行调度处理。 才艮据本发明实施例， 首先提供了一种 MBMS业务的调度处理方法。 图 3为才艮据本发明实施例的 MBMS业务的调度处理方法的流程图， 如 图 3所示， 对于归属于一个上层网元的每个下层网元， 在接收到该上层网元 发送的一个或多个 MBMS业务的数据之后， 才艮据本发明实施例的 MBMS业 务的调度处理方法主要包括以下步骤 （步骤 S301 -步骤 S303 ): 步骤 S301 : 下层网元接收指定网元发送的用于指示一个或多个 MBMS 业务的调度周期的信息； 在具体实施过程中，指定网元可以为上层网元或多媒体广播组播协调实 体。 步骤 S303: 下层网元按照上述一个或多个 MBMS业务的调度周期， 对 接收到的该一个或多个 MBMS业务的数据进行调度处理。 在具体实施过程中， 一个或多个 MBMS业务的数据 （对应于一个或多 个 MTCH ) 映射到一个 MCH上， 下层网元在预先确定的 MCH的传输调度 周期中调度该一个或多个 MBMS 业务的数据。 具体地， 下层网元可以按照 预设的顺序和 /或预设的调度量， 在该 MCH的传输调度周期中调度该一个或 多个 MBMS业务的数据； 并且，为了方便 UE获取其所需要的数据，在 MCH 的每个传输调度周期中可以设置在该传输调度周期内需要发送的所有
MBMS业务的调度信息， 该调度信息包括： 指示在该传输调度周期内发送各 个 MBMS业务的子帧位置 （具体可以通过子帧编号来确定）。 在本发明实施例中， 上述一个或多个 MBMS业务的调度周期中任意两 个不同的调度周期， 长的调度周期为短的调度周期的整数倍， 例如， 假设一 共有 3 个 MBMS 业务， 其中， 调度周期最短的 MBMS 业务的调度周期为 100ms, 如果其它两个 MBMS业务的调度周期与该 MBMS业务的调度周期 不相同， 则其它两个 MBMS业务的调度周期为该 MBMS业务的调度周期的 整数倍， 且其它两个 MBMS业务的调度周期之间其中一个 MBMS业务的调 度周期为另一个 MBMS业务的调度周期的 n倍， 其中， n=l,2,3 N, N为 大于等于 1的整数。 在具体实施过程中， 可以按照以下任意一种方式确定 MCH的传输调度 周期：
( 1 ) 上层网元通过信令指示下层网元 MCH的传输调度周期；
( 2 )指定网元才艮据上述一个或多个 MBMS业务的调度周期，确定 MCH 的传输调度周期， 并将该传输调度周期发送给下层网元； 优选地，在本发明实施例中，指定网元包括： 多媒体广播组播协调实体；
( 3 ) 下层网元根据接收到的上述一个或多个 MBMS业务的调度周期， 确定 MCH的传输调度周期。 优选地， 下层网元确定调度上述一个或多个 MBMS业务的数据的顺序 包括但不限于以下之一： ( 1 )按照上述一个或多个 MBMS业务的优先级顺序进行调度，具体地， 下层网元可以先在 MCH的传输调度周期内调度优选级高的 MBMS业务，然 后调度优选级稍氏一级的 MBMS 业务， 以此类 4舞， 直至调度完所有需要在 该传输调度周期的所有 MBMS业务；
( 2 )按照上述一个或多个 MBMS业务的服务质量顺序进行调度， 具体 地， 下层网元可以先在 MCH的传输调度周期内调度服务质量最好的 MBMS 业务， 然后调度服务质量稍低一级的 MBMS 业务， 直至调度完所有需要在 该传输调度周期的所有 MBMS业务；
( 3 ) 按照上述一个或多个 MBMS 业务的调度周期的长度顺序进行调 度， 具体地， 下层网元可以在 MCH的传输调度周期内首先调度调度周期最 短的 MBMS业务， 然后再调度调度周期稍长一级的 MBMS业务。 虽然在本发明实施例中例举了上述调度各个 MBMS业务的顺序， 但并 不限于此， 在具体实施过程中， 也可以 居实际需要， 釆用其它的顺序调度 各个 MBMS业务。 对于在 MCH中调度的各个 MBMS业务的调度量， 其确定方式包括但 不限于以下之一：
( 1 ) 按照上述一个或多个 MBMS业务中各个 MBMS业务在传输调度 周期内需要调度的平均数据量调度一个或多个 MBMS业务的数据； 具体地， 例如， 個—设在 MCH的一个传输调度周期内需要调度多媒体广 播组播业务包括： S l、 S2 Sn, 则各个多媒体广播组播业务需要在该 传输调度周期内调度的数据量为：
—X Total , 其中， T1为 MCH的传输调度周期， Tm为多媒体广播 Tm
组播业务 Sm的调度周期， Totalm为在 Tm时间段内多媒体组播业务 Sm的总 数据量。
( 2 ) 按照时间进行调度， 即按照上述一个或多个 MBMS 业务中各个 MBMS业务的调度周期， 调度各个 MBMS业务需要在该传输调度周期的数 据，具体地，可以将多个多媒体广播组播业务按照调度周期的长短进行排列， 在每个传输调度周期内，优先调度调度周期短的多媒体广播组播业务的数据， 再调度调度周期长的多媒体广播组播业务数据。 在本发明实施例中， 优选地， MCH的传输调度周期可以为一个或多个 MBMS业务的调度周期的最小值或最大值的整数倍。 以下分别以 MCH的传输调度周期为一个或多个 MBMS业务的调度周 期的最小值和最大值的整数倍为例， 对本发明实施例提供的 MBMS 业务的 调度处理方法进行说明， 在下面实施例中， MCH 的传输调度周期中需要调 度的 MBMS业务为多个。 实施例一 在本实施例中， MCH的传输调度周期为多个 MBMS业务的调度周期的 最小值， 即 MCH的传输调度周期为多个 MBMS的最小业务调度周期。 具体地， 在本实施例中， MBMS 业务的调度处理方法主要包括以下步 骤：
( 1 ) 指定网元将多个多媒体广播组播业务的调度周期长度通知下层网 元；
( 2 ) 各个下层网元按照接收到的多个多媒体广播组播业务的调度周期 长度对接收到的多媒体广播组播业务同步序列进行调度处理。 具体地， 每一个多媒体广播组播业务同步序列对应一个调度周期长度， 多个 MTCH映射到一个 MCH, MCH对应多种 MBMS业务的调度周期。 在 本实施例中 MCH的传输调度周期可以通过如下方式确定：
( 1 )上层网元（BMSC )通过信令指示下层网元 MCH的传输调度周期 为最小调度周期； ( 2 )多媒体广播组播协调实体根据各个 MBMS业务的调度周期， 选择 其中的最小业务调度周期长度， 并将该最小业务调度周期长度通知给其下层 网元（即 eNB ), 下层网元将该周期长度作为 MCH的传输调度周期； （ 3 )下 层网元（例如， eNB )根据接收到的各个 MBMS业务调度周期， 选择其中最 小业务调度周期作为 MCH的传输调度周期。 并且， 在本实施例中， 将多个 MBMS的调度周期按照长度由短到长的 顺序进行排列， 其中， 对于任意两个长度不同的 MBMS 业务调度周期中， 长业务调度周期是短业务调度周期的整数倍。 并且， MCH 传输信道的传输 调度周期为最小的业务调度周期。 在本实施例中， 按照最小 MBMS业务的调度周期分割， 每个最小的调 度周期内都放置相应的调度信息。 该调度信息包括在该最小的调度周期内需 要发送的所有多媒体广播组播业务的调度信息， 例如， 指示在该最小调度周 期内多个 MBMS业务所在的子帧位置等。 在具体实施过程中， 下层网元可以按照以下顺序对多个多 MBMS业务 的数据进行调度:
( 1 ) 按照优先级顺序进行调度。 在最小调度周期时间内先调度优先级 最高的多媒体广播组播业务，再调度优先级稍低一级的多媒体广播组播业务。 具体的， 下层网元首先将优先级最高的业务数据放置到其时间戳对应的 MBSFN 子帧开始的信道资源， 然后将优先级稍低的业务数据放置到其时间 戳对应的 MBSFN子帧开始， 且没有被占据的信道资源位置， 以此类推的放 置多调度周期的业务数据。
( 2 ) 按照服务质量顺序进行调度。 在最小调度周期时间内先调度服务 质量最好的多媒体广播组播业务， 再调度服务质量稍低一级的多媒体广播组 播业务。 具体的， 下层网元首先将服务质量最好的业务数据放置到其时间戳 对应的 MBSFN子帧开始的信道资源， 然后将艮务质量稍差的业务数据放置 到其时间戳对应的 MBSFN子帧开始， 且没有被占据的信道资源位置， 以此 类推的放置多调度周期的业务数据。
( 3 ) 按照调度时间按顺序进行调度。 在最小调度周期时间内先调度调 度周期最短的多媒体广播组播业务， 然后再调度周期稍长一级的多媒体广播 组播业务。 具体的， 下层网元首先将最小调度周期的业务数据放置到其时间 戳对应的 MBSFN子帧开始的信道资源， 然后将调度周期稍长的业务的数据 放置到其时间戳对应的 MBSFN子帧开始， 且没有被最小周期的业务数据占 据的信道资源位置， 以此类推的放置各个调度周期对应的 MBMS 业务的数 据。 对调度周期相同的多个业务， 下层网元可以根据业务的发送顺序或者优 先级对多个业务的数据依次在想相应的资源位置依次调度排列。 对于在传输调度周期内调度的调度量，下层网元可以按照以下方式对各 个多媒体广播组播业务的数据进行调度：
( 1 ) 平均调度 具体地， 假设在最小调度周期时间内需要调度多媒体广播组播业务 S 1,
S2, Sn, 则每个多媒体广播组播业务需要在所述最小调度周期时间段内调 度的数据量为：
—X Total , 其中， T1 为最小调度周期， Tm 为多媒体广播组播业务 Tm
Sm的调度周期， Totalm为在 Tm时间段内多媒体组播业务 Sm的总数据量。 ( 2 ) 时间调度 在最小调度周期内， 按照时间要求， 即将多个多媒体广播组播业务按照 调度周期的长短进行排列。 在每个最小调度周期内， 优先调度调度周期短的 多媒体广播组播业务数据， 再调度调度周期长的多媒体广播组播业务数据。 例如， 如图 4所示， 两个多媒体广播组播业务， 实时业务 S 1和非实时 业务 S2, 分别具有调度周期 T1和 T2, 且 T2是 T1的两倍。 将两种多媒体 广播组播业务映射到同一个 MCH信道， 则 MCH具有两种业务调度周期， 即 T1和 T2。 调度周期为 Τ2的多媒体广播组播业务 S2分别分配到对应的两 个调度周期为 T1的时间内进行调度。在每个调度周期 T1内的调度信息包括： 多媒体广播组播业务 S 1的调度信息， 或， 多媒体广播组播业务 S 1和多媒体 广播组播业务 S2的调度信息。 在每个调度周期 T1内的调度多媒体广播组播 业务 S 1的调度周期 T1 中的所有数据和多媒体广播组播业务 S2的调度周期 Τ2内的一半数据。 实施例二 在本实施例中， MCH的传输调度周期为多个 MBMS业务的调度周期的 最大值的整数倍 （具体可以为最大值的 1、 2、 3 Ν倍， Ν大于等于 1 ), 即 MCH的传输调度周期为多个 MBMS的最大业务调度周期的整数倍。 在本实施例中， MCH的传输调度周期的确定方式与实施例一相似， 不 同之处在于， 确定的传输调度周期为各个 MBMS 的调度周期的最大值， 具 体不在赞述。 并且， 在本实施例中， 由于按照各个 MBMS业务中最大的调度周期进 行分割， 因此， 只需在 MCH的传输调度周期内放置相应的调度信息， 其他 位置不需要放置调度信息。 也就是是， 与实施例相比， 在本实施例中， 在各 个 MBMS业务的最大调度周期内 ,调度信息的个数要比实施例一少，在 MCH 的一个传输调度周期可以多次调度发送一个业务的数据。 在一个传输调度周 期设置的调度信息包括在在该传输调度周期内需要发送的所有多媒体广播组 播业务的调度信息， 例如指示在多个不同调度周期的多个多媒体广播组播业 务数据所在的子帧位置等。 并且， 在本实施例中， 下层网元调度各个 MBMS业务的数据的顺序与 实施例一相似， 在此不在赞述。 同样， 对于调度量的确定也与实施例一相似， 不同之处在于， 在本实施 例中， MCH的传输调度周期为各个 MBMS业务的最大调度周期的整数倍， 因 jtb ,如果釆用平均调度的方法确定一个 MBMS业务在 MCH中的一个传输 调度周期内调度的数据量时， T1的取值为传输调度周期（即最大调度周期的 整数倍）。 在釆用时间调度时， 在一个传输调度周期内分别调度各个 MBMS 业务需要该传输调度周期内调度的顺序， 具体如图 5所示。 图 5 为本实施例中在 MCH 的一个传输调度周期中调度的数据的示意 图， 如图 5所示， 例如， 两个多媒体广播组播业务： 实时业务 S 1和非实时 业务 S2 , 分别具有调度周期 T1和 T2 , 且 T2是 T1的两倍。 将两种多媒体 广播组播业务映射到同一个 MCH, 则 MCH选择可以选择一种调度周期， 即 T2 , 该传输调度周期为最大业务调度周期的一倍。 调度周期为 T1 的多媒体 广播组播业务 S 1分配到对应的调度周期为 T2的时间内进行调度。 在每个调 度周期 T2内的调度信息包括在该调度周期 T2内多媒体广播组播业务 S 1和 多媒体广播组播业务 S2的调度信息。 在每个调度周期 T2内的调度多媒体广 播组播业务 S 1的调度周期 T1 中的所有数据和多媒体广播组播业务 S2的调 度周期 T2内的所有数据。 根据本发明实施例提供的上述 MBMS业务的调度处理方法， 可以根据 各个 MBMS业务的调度周期确定 MCH的传输调度周期，从而可以避免由于 资源分配不中而导致业务数据丢失的问题。 根据本发明实施例， 还提供了一种下层网元， 该下层网元可以用于实现 本发明实施例提供的上述方法。 图 6为才艮据本发明实施例的下层网元的结构示意图， 如图 6所示，才艮据 本发明实施例的下层网元主要包括： 第一接收单元 61、 第二接收单元 63和 调度处理单元 65。 其中， 第一接收单元 61 , 用于接收来自上层网元的一个 或多个 MBMS业务的数据； 第二接收单元 63 , 用于接收来自指定网元的指 示上述一个或多个 MBMS业务的调度周期的信息； 调度处理单元 65与第一 接收单元 61和第二接收单元 63连接， 用于按照上述一个或多个 MBMS业 务的调度周期， 对第一接收单元 61接收到的上述一个或多个 MBMS业务的 数据进行调度处理。 如上所述， 借助本发明实施例提供的技术方案， 通过指定网元向各个下 层网元发送各个 MBMS 业务的调度周期， 使得各个下层网元可以才艮据各个 MBMS业务的调度周期确定 MCH的传输调度周期， 并才艮据各个 MBMS业 务的调度周期对接收到的各个 MBMS 业务的数据进行调度处理， 从而可以 避免由于资源分配不中而导致业务数据丢失的问题， 提高了 MBMS 业务的 服务质量。 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 ^"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. 一种多媒体广播组播业务 MBMS的调度处理方法，用于各个下层网元对 接收到的来自上层网元的 MBMS 业务的数据进行调度处理， 其特征在 于， 包括：
所述下层网元接收指定网元发送的用于指示所述 MBMS业务的调 度周期的信息；
所述下层网元按照所述信息中指示的所述 MBMS 业务的调度周 期， 对接收到的所述 MBMS业务的数据进行调度处理。
2. 根据权利要求 1所述的方法， 其特征在于， 所述下层网元对接收到的所 述 MBMS业务的数据进行调度处理包括：
所述下层网元在预先确定的多播信道 MCH的传输调度周期中， 对 接收到的所述 MBMS业务的数据进行调度处理。
3. 根据权利要求 2所述的方法， 其特征在于， 确定所述 MCH的传输调度 周期包括以下之一：
上层网元通过信令指示所述下层网元所述 MCH的传输调度周期； 所述指定网元 居所述 MBMS 业务的调度周期， 确定所述 MCH 的传输调度周期， 并将所述 MCH的传输调度周期发送给所述下层网元， 其中， 所述指定网元包括： 多媒体广播组播协调实体；
所述下层网元根据接收到的所述 MBMS业务的调度周期， 确定所 述 MCH的传输调度周期。
4. 根据权利要求 2所述的方法， 其特征在于， 所述下层网元在预先确定的 所述 MCH的传输调度周期中， 对接收到的所述 MBMS业务的数据进行 调度处理包括：
所述下层网元按照预设的顺序和 /或预设的调度量， 在预先确定的 所述 MCH的传输调度周期中， 对接收到的所述 MBMS业务的数据进行 调度处理。
5. 根据权利要求 4所述的方法， 其特征在于， 所述下层网元按照所述预设 的顺序， 对接收到的所述 MBMS 业务的数据进行调度处理包括以下之 按照所述 MBMS业务的优先级顺序进行调度处理；
按照所述 MBMS业务的服务质量顺序进行调度处理； 按照所述 MBMS业务的调度周期的长度顺序进行调度处理。
6. 根据权利要求 4所述的方法， 其特征在于， 所述下层网元按照预设的调 度量， 对接收到的所述 MBMS业务的数据进行调度处理包括以下之一： 所述下层网元按照所述 MBMS业务中各个 MBMS业务在所述传输 调度周期内需要调度的平均数据量，对接收到的所述 MBMS业务的数据 进行调度处理；
所述下层网元按照所述 MBMS 业务中各个 MBMS 业务的调度周 期， 对接收到的所述 MBMS业务的数据进行调度处理。
7. 根据权利要求 2至 6 中任一项所述的方法， 其特征在于， 在所述 MCH 的传输调度周期中设置有在该传输调度周期内需要发送的所有 MBMS 业务的调度信息， 其中， 该调度信息包括： 指示在所述传输调度周期内 发送各个 MBMS业务的子帧位置。
8. 根据权利要求 2至 6中任一项所述的方法，其特征在于，对于所述 MBMS 业务的调度周期中任意两个不同的调度周期， 长的调度周期为短的调度 周期的整数倍。
9. 根据权利要求 2至 6中任一项所述的方法， 其特征在于， 所述 MCH的 传输调度周期为所述 MBMS 业务的调度周期的最小值或最大值的整数 倍。
10. —种下层网元， 其特征在于， 包括：
第一接收单元， 用于接收来自上层网元的 MBMS业务的数据； 第二接收单元， 用于接收来自指定网元的指示所述 MBMS业务的 调度周期的信息； 调度处理单元，用于按照所述第二接收单元接收的所述信息中指示 的所述 MBMS 业务的调度周期， 对所述第一接收单元接收到的所述 MBMS业务的数据进行调度处理。
PCT/CN2010/070012 2009-07-06 2010-01-04 多媒体广播组播业务的调度处理方法及下层网元 WO2011003287A1 (zh)

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938697A (zh) * 2009-06-29 2011-01-05 大唐移动通信设备有限公司 一种同步调度方法、装置和系统
DK2767123T3 (en) * 2011-10-11 2016-03-14 Ericsson Telefon Ab L M Technique for delivering schedule information for an MBMS user service
US10285159B2 (en) * 2013-11-05 2019-05-07 Qualcomm Incorporated Diversity enhancement in a multiple carrier system
US9954906B2 (en) 2015-03-27 2018-04-24 At&T Intellectual Property I, L.P. Method and system for providing media services in a communication system
US10405149B2 (en) 2015-06-09 2019-09-03 Samsung Electronics Co., Ltd. Enhanced MBMS-based signal transmission/reception method
US9979604B2 (en) 2015-08-12 2018-05-22 At&T Intellectual Property I, L.P. Network management for content broadcast
US10015640B2 (en) 2015-08-12 2018-07-03 At&T Intellectual Property I, L.P. Network device selection for broadcast content
CN105517046B (zh) * 2015-11-25 2018-10-16 北京北方烽火科技有限公司 Mbms业务调度方法及装置
CN109257202B (zh) * 2017-07-14 2022-03-29 中国移动通信有限公司研究院 引入动作周期进行网络配置的方法和对应网元

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1476198A (zh) * 2002-08-15 2004-02-18 ��������ͨ�ż����о����޹�˾ 利用小区广播的mbms的业务广告或业务指示的方法
CN1747399A (zh) * 2004-09-06 2006-03-15 华为技术有限公司 一种实现多媒体广播/组播业务调度的业务传输方法
CN1897745A (zh) * 2005-07-15 2007-01-17 北京三星通信技术研究有限公司 均衡发送mbms业务数据的方法
WO2007092691A2 (en) * 2006-02-03 2007-08-16 Motorola Inc. Distributed architecture and methods for broadcast/multicast service

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100470345B1 (ko) * 2000-12-27 2005-02-21 엘지전자 주식회사 이동통신 망에서의 ｉｐ멀티캐스트/브로드캐스트 패킷 전송을 위한 링크접속제어 프로토콜 구현장치 및 방법
KR100886537B1 (ko) * 2002-03-15 2009-03-02 삼성전자주식회사 부호분할다중접속 이동통신시스템에서 멀티캐스트멀티미디어 방송 서비스를 위한 데이터 패킷 제어장치 및방법
KR100891785B1 (ko) * 2002-04-27 2009-04-07 삼성전자주식회사 부호분할다중접속 이동통신시스템에서 멀티캐스트멀티미디어 방송 서비스를 위한 소프트 핸드오버 방법
KR20040098394A (ko) * 2003-05-14 2004-11-20 삼성전자주식회사 이동통신시스템에서 멀티미디어 브로드케스트/멀티케스드서비스에 따른 호출 정보 전송방법
KR100735349B1 (ko) * 2004-01-08 2007-07-04 삼성전자주식회사 이동통신 시스템에서 브로드캐스트 서비스와 멀티캐스트 서비스를 통합하는 방법 및 장치
GB0407929D0 (en) 2004-04-07 2004-05-12 Samsung Electronics Co Ltd Mobile communications
KR101084142B1 (ko) * 2005-08-25 2011-11-17 엘지전자 주식회사 하향공유채널의 데이터 송수신 방법
KR101333918B1 (ko) * 2006-01-05 2013-11-27 엘지전자 주식회사 이동 통신 시스템의 점-대-다 서비스 통신
JP4799202B2 (ja) * 2006-02-08 2011-10-26 株式会社エヌ・ティ・ティ・ドコモ 基地局
US8843118B2 (en) * 2006-08-21 2014-09-23 Interdigital Technology Corporation Multi-cell coordination for multimedia broadcast multicast services in a wireless communication system
JP5112671B2 (ja) * 2006-10-06 2013-01-09 富士通株式会社 無線基地局及び移動無線通信制御方法
CN101272518B (zh) * 2007-03-21 2012-07-25 上海贝尔股份有限公司 针对mbms的调度方法、调度设备和包括该调度设备的基站
US8670363B2 (en) 2007-05-30 2014-03-11 Qualcomm Incorporated Method and apparatus for sending scheduling information for broadcast and multicast services in a cellular communication system
WO2009044345A2 (en) * 2007-10-01 2009-04-09 Nokia Corporation System and method for controlling base stations for multimedia broadcast communications
US7860107B2 (en) 2007-11-30 2010-12-28 Ipwireless, Inc. Apparatus and method for determining timing for transmissions
US8774141B2 (en) * 2007-12-07 2014-07-08 Blackberry Limited Multicast broadcast single frequency network data scheduling and handling
EP2219321A1 (en) * 2009-02-04 2010-08-18 Nokia Corporation Scheduling of dynamically multiplexed services in a wireless network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1476198A (zh) * 2002-08-15 2004-02-18 ��������ͨ�ż����о����޹�˾ 利用小区广播的mbms的业务广告或业务指示的方法
CN1747399A (zh) * 2004-09-06 2006-03-15 华为技术有限公司 一种实现多媒体广播/组播业务调度的业务传输方法
CN1897745A (zh) * 2005-07-15 2007-01-17 北京三星通信技术研究有限公司 均衡发送mbms业务数据的方法
WO2007092691A2 (en) * 2006-02-03 2007-08-16 Motorola Inc. Distributed architecture and methods for broadcast/multicast service

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2442523A4 *

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EP2442523B1 (en) 2017-06-28
US8855037B2 (en) 2014-10-07
CN101945336A (zh) 2011-01-12
US20120093055A1 (en) 2012-04-19
EP2442523A4 (en) 2013-01-09
KR101386155B1 (ko) 2014-04-17
CN101945336B (zh) 2015-05-13
JP2012532536A (ja) 2012-12-13
JP5726867B2 (ja) 2015-06-03
KR20120049872A (ko) 2012-05-17

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