WO2018059410A1 - 业务回话发送、接收方法、装置、系统及存储介质 - Google Patents

业务回话发送、接收方法、装置、系统及存储介质 Download PDF

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Publication number
WO2018059410A1
WO2018059410A1 PCT/CN2017/103535 CN2017103535W WO2018059410A1 WO 2018059410 A1 WO2018059410 A1 WO 2018059410A1 CN 2017103535 W CN2017103535 W CN 2017103535W WO 2018059410 A1 WO2018059410 A1 WO 2018059410A1
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Prior art keywords
scheduling
time
mcch
mbms service
session
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PCT/CN2017/103535
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English (en)
French (fr)
Inventor
艾建勋
陈宪明
戴博
马子江
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中兴通讯股份有限公司
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Publication of WO2018059410A1 publication Critical patent/WO2018059410A1/zh

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    • 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
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present invention relates to the field of communications, and in particular, to a service session sending and receiving method, apparatus, system, and computer readable storage medium.
  • Single Cell Point to Multipoint (Single Cell Point to Multipoint) is introduced in the 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE).
  • SC-PTM 3rd Generation Partnership Project
  • the SC-PTM technology is used to implement a point-to-multipoint downlink broadcast and multicast service (MBMS) in a single cell.
  • MBMS broadcast and multicast service
  • the SC-PTM introduces two types of logical channels, namely, Single Cell Multicast Control Channel (SC-MCCH) and Single Cell Multicast Transmission Channel (SC-MTCH).
  • SC-MCCH Single Cell Multicast Control Channel
  • SC-MTCH Single Cell Multicast Transmission Channel
  • both the SC-MCCH and the SC-MTCH are carried by a Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • the SC-MCCH channel carries control information related to the transmission of the MBMS service, including service identification and scheduling information.
  • the PDSCH carrying the SC-MCCH is dynamically scheduled.
  • the scheduling information of the SC-MCCH channel is indicated in the System Information Block 20 (SIB20 for short), including a modification period, a repetition period, an offset offset, a first subframe first subframe, and possibly
  • SIB20 System Information Block 20
  • the interval length of the schedule is duration.
  • the interval of the duration in which the SC-MCCH may be scheduled is defined, that is, the evolved Node B (abbreviated as eNB) schedules the SC-MCCH in one of the subframes in the duration interval in which the SC-MCCH may be scheduled.
  • eNB evolved Node B
  • a modification period of an SC-MCCH indicates a boundary at which an SC-MCCH message may be modified, and an SC-MCCH repetition period is a scheduling.
  • the period in which the SC-MCCH message is sent, the offset refers to the number of offset radio frames of the duration start radio frame relative to the SC-MCCH repetition period start radio frame, and the first subframe is the duration from the start of the radio frame.
  • the wireless sub-frame begins.
  • the length of the Duration is the number of wireless subframes that duration continues.
  • the eNB scrambles the DCI in the physical downlink control channel PDCCH using the SC-RNTI.
  • An SC-MTCH carries an MBMS service data.
  • the scheduling information of the SC-MTCH includes: a scheduling period and a starting offset, a duration time interval of the scheduling time interval OnDurationTimer, and a user equipment (User Equipment, UE for short) after successfully receiving a downlink data.
  • the length of time to wait (drxInactivityTimerSCPTM).
  • 2 is a schematic diagram of a scheduling manner of an SC-MTCH channel in LTE in the related art. As shown in FIG. 2, an eNB may schedule and bear an MBMS service in any one of the radio subframes specified by the SC-MTCH scheduling information.
  • the PDSCH channel of the SC-MTCH after successfully receiving a downlink data of the service, the UE continues to wait for the length of the drxInactivityTimerSCPTM until the time expires or receives a new data of the service.
  • the eNB scrambles the DCI of the PDCCH scheduling the SC-MTCH by using a Group Radio Network Temporary Identifier (G-RNTI), and each MBMS service is assigned a separate G-RNTI.
  • G-RNTI Group Radio Network Temporary Identifier
  • FIG. 3 is a schematic diagram of a process of starting an SC-TPM session in LTE in the related art.
  • the eNB updates an SC-MCCH message on the radio interface to indicate scheduling information of the MBMS session.
  • the UE receives the SC-MTCH channel carrying the MBMS session data on the radio interface according to the scheduling information of the MBMS session.
  • the SC-PTM service is implemented in the Narrow Band Internet of Things (NB-IoT) and the Enhanced Machine Type Communication (eMTC) system, mainly for updating the device software.
  • NB-IoT Narrow Band Internet of Things
  • eMTC Enhanced Machine Type Communication
  • Demand requires users
  • a device User Equipment, UE for short
  • UE User Equipment
  • the power saving of the UE is also a crucial issue.
  • the UE When the MBMS service session in the related art starts, the UE does not know the time when an MBMS service starts, even if the UE obtains the start time of the service from the User Service Description (USD), because Due to the delay of the wireless interface scheduling and MCCH message update, etc., this start time cannot be used for the basis for the UE to start receiving the MBMS service data accurately. Therefore, it is possible that the UE starts to try to receive the MBMS service data prematurely, without wasting the battery energy of the UE.
  • USD User Service Description
  • the above problem also exists when the MBMS service is transmitted in a multicast broadcast single frequency network (MBSFN).
  • MBSFN and SC-PTM technologies have similar channel structures.
  • the multicast control channel is MCCH
  • the multicast transmission channel is MTCH, which corresponds to the SC-MCCH and SC-MTCH channels in the SC-PTM technology, respectively.
  • the MCCH channel in the MBSFN technology also has a modification period attribute, and the scheduling of the MTCH channel is also scheduled to be transmitted in units of its scheduling period.
  • Embodiments of the present invention provide a method, an apparatus, a system, and a computer readable storage medium for transmitting and receiving a service session.
  • a method for receiving a service session includes: determining a start scheduling time for an access network element to start scheduling to send an MBMS service session; and receiving the MBMS service session according to the determined start scheduling time. Corresponding business data.
  • a method for transmitting a service session including: determining a start scheduling time for starting to schedule an MBMS service session; and starting to schedule and transmitting the MBMS service session according to the determined start scheduling time.
  • Business data including: determining a start scheduling time for starting to schedule an MBMS service session; and starting to schedule and transmitting the MBMS service session according to the determined start scheduling time.
  • a method for sending a service session includes: receiving an MBMS session start request message, where the MBMS session start request message carries a service corresponding to a core network element to start sending an MBMS service session. Time letter corresponding to the data And determining, according to the time information carried in the MBMS session start request message, a start scheduling time for starting to schedule sending an MBMS service session.
  • a method for transmitting a service session including: updating an MCCH message, where the updated MCCH message carries scheduling information of a MBMS service of a multimedia broadcast multicast service; After the MCCH message is started, before the service data of the MBMS service is started, the downlink control information (Downlink Control Information, DCI for short) or the medium access control (Media Access) of the physical downlink control channel (PDCCH) is used.
  • DCI Downlink Control Information
  • Media Access Media Access
  • Control abbreviated as MAC
  • CE Control Element
  • CE indicates the start scheduling time of the service data of the MBMS service, and starts to schedule and transmit the service data of the MBMS service according to the start scheduling time.
  • a service session receiving method including: receiving an updated MCCH message, wherein the updated MCCH message adds scheduling information of an MBMS service with respect to the MCCH message before updating.
  • a method for transmitting a service session including: receiving an indication message sent by an access network element, where the indication message carries a subordinate cell of the access network element Configuring a multicast control channel MCCH to modify a period length, and timing information of the subordinate cell, where the timing information is used to indicate a time of starting point of at least one of a system frame number and a system superframe number of the subordinate cell, or And indicating at least one of a current system frame number and a system superframe number of the subordinate cell when the timing information is sent; according to the MCCH modification period length, the timing information, and the received MBMS service session start The MBMS service indicated in the request message starts transmitting time, and sends the received MBMS session start request message to the access network element.
  • a service session receiving apparatus including: a determining module, configured to determine that an access network element starts scheduling to send a multimedia broadcast multicast service. The start scheduling time of the MBMS service session; the receiving module is configured to receive the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • a service session sending apparatus including: a determining module, configured to determine a start scheduling time for starting to schedule an MBMS service session for transmitting a multimedia broadcast multicast service; and a sending module configured to determine according to the determined The starting scheduling time starts to schedule and send the service data corresponding to the MBMS service session.
  • a service session sending apparatus including: a receiving module, configured to receive a multimedia broadcast multicast service MBMS session start request message, where the MBMS session start request message carries a core network The network element starts to send time information corresponding to the service data corresponding to the MBMS service session, and the determining module is configured to determine, according to the time information carried in the MBMS session start request message, a start scheduling time for starting to schedule and send the MBMS service session.
  • a service session sending apparatus including: an update module, configured to update an MCCH message, where the updated MCCH message carries scheduling information of an MBMS service; and an indication module, After the MCCH message is updated, before the service data of the MBMS service is started, the downlink control information DCI of the physical downlink control channel PDCCH or the media access control MAC control unit CE indicates the service data of the MBMS service. And the sending module is configured to start scheduling the service data of the MBMS service according to the starting scheduling time.
  • a service session receiving apparatus including: a first receiving module, configured to receive an updated MCCH message, wherein the updated MCCH message is relative to the MCCH before updating The message is added to the scheduling information of the MBMS service, and the second receiving module is configured to: after receiving the updated MCCH message, receive the indication information of the MBMS service sent by the DCI of the PDCCH or the MAC CE, where the indication information
  • the first receiving module is configured to receive the service data of the MBMS service according to the indicated starting scheduling time.
  • a service session sending apparatus including: a receiving module, configured to receive an indication message sent by an access network network element, where the indication message An MCCH modification period length configured in a subordinate cell carrying the access network element, and timing information of the subordinate cell, where the timing information is used to indicate a system frame number and a system superframe number of the subordinate cell At least one of a starting point of the at least one, or indicating at least one of a current system frame number and a system superframe number of the subordinate cell when the timing information is sent; and a sending module configured to modify a period length according to the MCCH And the timing information, and the MBMS service start transmission time indicated in the received MBMS service session start request message, and the received MBMS session start request message is sent to the access network element.
  • a service session system including an access network element and a terminal, where the access network element includes: a first processor and a first transmission device, where the terminal includes: a second processor and a second transmission device, wherein the first processor is configured to determine a start scheduling time for starting to schedule a MBMS service session for transmitting a multimedia broadcast multicast service; the first transmission device configured to determine according to the determined The start scheduling time starts to schedule and send the service data corresponding to the MBMS service session; the second processor is configured to determine that the access network element starts scheduling to send the start scheduling time of the MBMS service session; The second transmission device is configured to receive the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • a computer readable storage medium having stored thereon a computer program, the computer program being the processor of any one of the above-described service session receiving methods, or implementing any of the above services The steps of the session sending method.
  • the service data is received according to the start scheduling time of the access network element to start scheduling and sending the MBMS service session, thereby avoiding that the terminal starts to try to receive the MBMS service data too early, or starts to receive the MBMS service too late.
  • the data causes the problem that the service data cannot be completely received. Therefore, the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art can be solved, and the effect of improving the MBMS service data reception efficiency is achieved.
  • FIG. 1 is a schematic diagram of a scheduling manner of an SC-MCCH channel in LTE in the related art
  • FIG. 2 is a schematic diagram of a scheduling manner of an SC-MTCH channel in LTE in the related art
  • FIG. 3 is a schematic diagram of a process of starting an SC-TPM session in LTE in the related art
  • FIG. 4 is a block diagram showing the hardware structure of a mobile terminal in a method for receiving a service session according to an embodiment of the present invention
  • FIG. 5 is a flowchart 1 of a method for receiving a service session according to an embodiment of the present invention
  • FIG. 6 is a flowchart 1 of a method for sending a service session according to an embodiment of the present invention.
  • FIG. 7 is a second flowchart of a method for sending a service session according to an embodiment of the present invention.
  • FIG. 8 is a third flowchart of a method for sending a service session according to an embodiment of the present invention.
  • FIG. 9 is a second flowchart of a method for receiving a service session according to an embodiment of the present invention.
  • FIG. 10 is a flowchart 4 of a method for sending a service session according to an embodiment of the present invention.
  • FIG. 11 is a first schematic diagram 1 of a session start mode of an access network element according to an embodiment of the present invention.
  • FIG. 12 is a second schematic diagram of a session start mode of an access network element according to an application embodiment of the present invention.
  • FIG. 13 is a third schematic diagram of a session start mode of an access network element according to an application embodiment of the present invention.
  • FIG. 14 is a fourth schematic diagram of a session start mode of an access network element according to an application embodiment of the present invention.
  • 15 is a schematic diagram of starting a scheduling time in an application embodiment according to the present invention.
  • 16 is a schematic diagram of a time for transmitting an MBMS session start request message according to an embodiment of the present invention
  • FIG. 17 is a structural block diagram 1 of a service session receiving apparatus according to an embodiment of the present invention.
  • FIG. 18 is a structural block diagram 1 of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention.
  • FIG. 19 is a second structural block diagram of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention.
  • FIG. 20 is a structural block diagram 3 of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention.
  • 21 is a structural block diagram 1 of a service session sending apparatus according to an embodiment of the present invention.
  • FIG. 22 is a second structural diagram of a service session sending apparatus according to an embodiment of the present invention.
  • FIG. 23 is a structural block diagram 3 of a service session sending apparatus according to an embodiment of the present invention.
  • FIG. 24 is a structural block diagram 4 of a service session sending apparatus according to an embodiment of the present invention.
  • 25 is a structural block diagram 5 of a service session sending apparatus according to an embodiment of the present invention.
  • FIG. 26 is a second structural diagram of a service session receiving apparatus according to an embodiment of the present invention.
  • FIG. 27 is a structural block diagram 6 of a service session sending apparatus according to an embodiment of the present invention.
  • FIG. 28 is a structural block diagram 7 of a service session sending apparatus according to an embodiment of the present invention.
  • 29 is a structural block diagram of a service session system according to an embodiment of the present invention.
  • FIG. 4 is a hardware structural block diagram of a mobile terminal receiving a service session receiving method according to an embodiment of the present invention.
  • mobile terminal 40 may include one or more (only one shown) processor 42 (processor 42 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA)
  • a memory 44 configured to store data and a transmission device 46 configured as a communication function.
  • FIG. 4 is merely illustrative and does not limit the structure of the above electronic device.
  • the mobile terminal 40 may also include more or fewer components than those shown in FIG. 4, or have a different configuration than that shown in FIG.
  • the memory 44 can be configured as a software program and a module for storing application software, such as a program instruction/module corresponding to the service session receiving method in the embodiment of the present invention, and the processor 42 executes by executing a software program and a module stored in the memory 44.
  • application software such as a program instruction/module corresponding to the service session receiving method in the embodiment of the present invention
  • the processor 42 executes by executing a software program and a module stored in the memory 44.
  • Memory 44 may include high speed random access memory and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 44 may further include memory remotely located relative to processor 42 that may be connected to mobile terminal 40 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 46 is configured to receive or transmit data via a network.
  • the above-described network specific examples may include a wireless network provided by a communication provider of the mobile terminal 40.
  • the transmission device 46 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 46 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • FIG. 5 is a flowchart 1 of a method for receiving a service session according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps:
  • Step S502 Determine a start scheduling time for the access network element to start scheduling and sending an MBMS service session.
  • Step S504 Receive service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the service data is received according to the start scheduling time of the access network element to start and send the MBMS service session, and the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art is solved. , improve the MBMS service data receiving efficiency.
  • the start scheduling time of the access network element to start scheduling and sending the MBMS service session may be determined by using a protocol, or a signaling designation.
  • the start scheduling time of the access network element to start scheduling and sending the MBMS service session may be determined by: determining a preset MCCH modification period, where the preset MCCH The modification period is used by the access network element to update the MCCH message from the preset MCCH modification period, where the updated MCCH message carries the scheduling information of the MBMS service; according to the determined preset MCCH modification period, and the preset MCCH The correspondence between the modification period and the start scheduling time of starting to schedule the sending of the MBMS service session, and determining the start scheduling time of the access network element to start scheduling and transmitting the MBMS service session.
  • the start scheduling time of the access network element to start scheduling and sending the MBMS service session may be determined by using a protocol agreement or a signaling specification: the preset MCCH modification period and the start may be determined by using a protocol agreement or a signaling specified manner. Scheduling the correspondence between the start scheduling times of sending MBMS service sessions.
  • the preset MCCH modification period may be determined in multiple manners. For example, after the received MCCH message carries the scheduling information corresponding to the MBMS service session, it may be determined whether an update for indicating the MCCH update is received. If the result of the determination is that the update notification is received, the preset MCCH modification period is determined to be the MCCH modification period of receiving the preset MCCH message, and, for example, it may be determined whether it is received in at least two consecutive MCCH modification periods.
  • the MCCH message, and the MCCH message received in the last MCCH modification period of the at least two consecutive MCCH modification periods carries the scheduling information corresponding to the MBMS service session; if the determination result is yes, the preset is determined.
  • the MCCH modification period is the last MCCH modification period of at least two consecutive MCCH modification periods.
  • the first MCCH message carrying the update time is received, where the update time corresponds to the start position of the preset MCCH modification period; and it is determined whether the start position of the MCCH modification period of the second MCCH message is the update time.
  • the second MCCH message carries the scheduling information corresponding to the MBMS service session. If the determination result is that the start position of the MCCH modification period of the second MCCH message is the update time, the preset MCCH modification period is determined.
  • the MCCH modification period for receiving the second MCCH message is the last MCCH modification period of at least two consecutive MCCH modification periods.
  • determining, according to the determined preset MCCH modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session determining the start of the access network element to start scheduling and transmitting the MBMS service session.
  • the scheduling time may be as follows: determining, according to the determined preset MCCH modification period, that the starting scheduling time is at least one of the following: after the preset MCCH modification period, after the starting position of the Nth MCCH modification period N2 multicast transmission channel MTCH scheduling periods, where N1, N2 are positive integers; MCCH modifies the multicast transmission channel MTCH scheduling period starting from the N3th radio frame after the start position or the end position, or the N3th radio frame The first MTCH scheduling period thereafter, where N3 is a positive integer; the Nthth Mth Mth scheduling of the Nth multicast transmission channel starting from the time when the system superframe number is modulo 0 to M after the preset MCCH modification period Period, where N4, N5, and M are positive integers.
  • the foregoing determination result is no (ie, no update notification is received, no MCCH message is received in at least two consecutive MCCH modification periods, and only at least two consecutive MCCH modification periods are received
  • the MCCH message received in the last MCCH modification period carries the scheduling information or the starting position of the MCCH modification period in which the preset MCCH message is received is greater than the update time.
  • the service data is received in the following manner: from receiving to carrying The current scheduling period of the MCCH message with the scheduling information of the MBMS service session or the service data corresponding to the MBMS service session is started from the next MTCH scheduling period of the current scheduling period, that is, the next MCCH can be started immediately or from the current moment.
  • the scheduling period begins to receive service data corresponding to the MBMS session.
  • the foregoing MCCH may be one of the following: SC-MCCH in SC-PTM technology, MCCH in multicast broadcast single frequency network MBSFN technology.
  • the foregoing MTCH may be one of the following: SC-MTCH in SC-PTM technology, MTCH in MBSFN technology.
  • FIG. 6 is a flowchart 1 of a method for sending a service session according to an embodiment of the present invention. As shown in FIG. 6, the process includes The following steps:
  • Step S602 determining a start scheduling time for starting to schedule sending an MBMS service session
  • Step S604 starting to schedule and send the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the access network element determines the start scheduling time for starting to schedule the sending of the MBMS service session, and performs the service data transmission according to the determined start scheduling time, which solves the problem that the UE cannot be complete when receiving the MBMS service data in the related art.
  • the problem of receiving MBMS service data packets improves the efficiency of MBMS service data reception.
  • the start scheduling time of starting to schedule the sending of the MBMS service session may be determined by: determining to start updating a preset MCCH modification period of the preset multicast control channel MCCH message corresponding to the MBMS service session; according to the determined preset MCCH The modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting to schedule the transmission of the MBMS service session, and determining the start scheduling time for starting to schedule the transmission of the MBMS service session.
  • the start scheduling time for starting to schedule the sending of the MBMS service session may be determined by using a protocol, or a signaling: the preset MCCH modification period may be determined by the protocol agreement or the signaling, and the MBMS service session is started. The correspondence between the start scheduling times.
  • the following manner may be adopted: determining, according to the determined preset MCCH modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session, determining the start scheduling of starting the scheduled transmission of the MBMS service session.
  • Time determining, according to the determined preset MCCH modification period, that the starting scheduling time is at least one of the following: a preset N2 multicast transmission channel MTCH scheduling period after the Nth MCCH modification period starting position after the preset MCCH modification period, Wherein, N1, N2 are positive integers; the MCH scheduling period of the multicast transmission channel starting from the N3th radio frame after the start or end position of the MCCH modification period, or the first MTCH scheduling period after the N3th radio frame, wherein N3 is a positive integer; the Nthth Mth scheduling channel after the preset MCCH modification period satisfies the M5 scheduling period of the N5th multicast transmission channel starting from the time when the system superframe number is modulo 0 to the M, where N4, N5, and M are A positive integer.
  • the multicast control channel MCCH message may be updated before the service data corresponding to the MBMS service session is sent according to the determined start scheduling time, where the MCCH message carries scheduling information corresponding to the MBMS service session, and the scheduling information Includes time information indicating the start of the scheduled time.
  • the time information may include one of the following: a system superframe number and a system frame number, a system frame number, and an absolute time value expressed in units of time.
  • the service data corresponding to the MBMS service session may be scheduled to be sent according to the determined start scheduling time in the following manner: the MCCH message is updated.
  • the next multimedia frame after the radio frame is the multimedia frame indicated by the system superframe number and the system frame number, or the system frame number.
  • the service data corresponding to the sending of the MBMS service session may be scheduled to be started according to the determined start scheduling time as follows: at the time represented by the absolute time value.
  • the service data corresponding to the MBMS service session is scheduled to be scheduled to be transmitted within the MTCH scheduling period of the initial multimedia transmission channel or during the first MTCH scheduling period after the time represented by the absolute time.
  • the foregoing MCCH may be one of the following: SC-MCCH in SC-PTM technology, MCCH in MBSFN technology.
  • the MTCH may be one of the following: SC-MTCH in SC-PTM technology, MTCH in MBSFN technology.
  • the scheduling type used for scheduling to send the MBMS service session may also be determined, where the scheduling type is a preset type used by the scheduling to send the MBMS service session;
  • the start scheduling time of the MBMS service session to start the transmission of the multimedia broadcast multicast service may include: determining the start scheduling time according to the determined scheduling type; after determining the scheduling type used by the scheduled MBMS service session, the method may further include: sending the message to the UE A signaling message, where the signaling message carries a scheduling type.
  • FIG. 7 is a flowchart 2 of a method for sending a service session according to an embodiment of the present invention. As shown in FIG. 7, the process includes The following steps:
  • Step S702 receiving an MBMS session start request message, where the MBMS session start request message carries time information corresponding to the service data corresponding to the core network element starting to send the MBMS service session;
  • Step S704 determining, according to the time information carried in the MBMS session start request message, the start scheduling time for starting to schedule the sending of the MBMS service session.
  • the access network element determines the start scheduling time for starting to schedule and send the MBMS service data according to the time when the core network element starts to send the service data, and ensures the start scheduling time.
  • the accuracy of the determination solves the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art, and improves the MBMS service data receiving efficiency.
  • the foregoing time information includes at least one of an absolute time and a relative time, where the absolute time is a time when the core network element starts to send the service data corresponding to the MBMS service session, and the relative time is that the core network element starts to send the MBMS service.
  • the relative time between the time of the service data corresponding to the session and the time when the core network element sends the MBMS session start request message.
  • the MBMS session start request message may be directly sent by the core network element or may be forwarded by other access network elements.
  • FIG. 8 is a flowchart 3 of a method for sending a service session according to an embodiment of the present invention. As shown in FIG. The following steps:
  • Step S802 the MCCH message is updated, where the updated MCCH message carries scheduling information of the MBMS service.
  • Step S804 after the MCCH message is updated, before starting to schedule the service data of the MBMS service, the DCI or the MAC CE of the PDCCH indicates the start scheduling time of the service data of the MBMS service;
  • Step S806 starting to schedule the transmission of the service data of the MBMS service according to the start scheduling time.
  • the access network element updates the MCCH message, and the scheduling information of the MBMS service session is added to the updated MCCH message, and the start scheduling time of the MBMS service data is indicated by the DCI or MAC CE of the PDCCH, thereby ensuring the start scheduling time.
  • the accuracy solves the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art, and improves the MBMS service data receiving efficiency.
  • the DCI of the PDCCH may be scrambled by using a G-RNTI, where the G-RNTI is an RNTI for scheduling service data carrying the MBMS service.
  • the MAC CE may be carried by a MAC PDU (Protocol Data Unit, referred to as a protocol data unit), wherein the scheduling information indicating the PDSCH carrying the MAC PDU is indicated in the DCI scrambled using the RNTI of the MBMS service.
  • MAC PDU Protocol Data Unit
  • the scheduling information indicating the PDSCH carrying the MAC PDU is indicated in the DCI scrambled using the RNTI of the MBMS service.
  • the start scheduling time of the service data of the MBMS service is indicated.
  • the start scheduling time may be a relative time relationship between the first scheduling period and the second scheduling period or a size of the time interval, where the first scheduling period is where the first service data packet of the MBMS service is scheduled to be sent.
  • the scheduling period of the MBMS service, and the second scheduling period is a scheduling period of the MBMS service in which the DCI of the PDCCH or the MAC CE is scheduled to be scheduled.
  • the MTCH may be one of the following: SC-MTCH in SC-PTM technology, MTCH in MBSFN technology.
  • the foregoing MCCH may be one of the following: SC-MCCH in SC-PTM technology, MCCH in MBSFN technology.
  • FIG. 9 is a flowchart 2 of a service session receiving method according to an embodiment of the present invention. As shown in FIG. 9, the process includes the following steps:
  • Step S902 Receive an updated MCCH message, where the updated MCCH message adds scheduling information of the MBMS service with respect to the MCCH message before the update;
  • Step S904 after receiving the updated MCCH message, receiving indication information of the MBMS service sent by the DCI of the PDCCH or the MAC CE, where the indication information is used to indicate the start scheduling time of the service data of the MBMS service;
  • Step S906 receiving service data of the MBMS service according to the indicated start scheduling time.
  • the MCCH message that receives the scheduling information of the MBMS service is used to indicate the start scheduling time of the service data of the core network element to start scheduling the MBMS service, and the MBMS service data is accepted according to the indicated start scheduling time.
  • the accuracy of the start scheduling time is ensured, and the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art is solved, and the MBMS service data receiving efficiency is improved.
  • the start scheduling time may be a relative time relationship between the first scheduling period and the second scheduling period or a size of the time interval, where the first scheduling period is the first to send the MBMS service to the access network element scheduling
  • the scheduling period of the MBMS service in which the service data packets are located, and the second scheduling period is the scheduling of the DCI in which the PDCCH is transmitted or the MBMS service in which the MAC CE is located. Scheduling cycle.
  • the received indication information may be one or more, where the indication information is in a multicast transmission channel of one or more MBMS services. Sent during the MTCH scheduling period.
  • the MTCH may be one of the following: SC-MTCH in SC-PTM technology, MTCH in MBSFN technology.
  • the foregoing MCCH may be one of the following: SC-MCCH in SC-PTM technology, MCCH in MBSFN technology.
  • FIG. 10 is a flowchart 4 of a service session sending method according to an embodiment of the present invention. As shown in FIG. 10, the process includes the following steps:
  • Step S1002 Receive an indication message sent by the network element of the access network, where the indication message carries the length of the MCCH modification period configured in the subordinate cell of the access network element, and the timing information of the subordinate cell, where the timing information is used to indicate the subordinate cell. And a time of starting point of at least one of a system frame number and a system superframe number, or at least one of a current system frame number and a system superframe number of the subordinate cell when the timing information is transmitted;
  • Step S1004 Send the received MBMS session start request message to the access network element according to the MCCH modification period length, the timing information, and the MBMS service start transmission time indicated in the received MBMS service session start request message.
  • the received MBMS session start request message is sent to the access network network element according to the MCCH modification period length, the timing information, and the MBMS service start transmission time of the access cell of the access network element, thereby ensuring the accuracy of starting the scheduling time.
  • the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art is solved, and the MBMS service data receiving efficiency is improved.
  • step S904 determining, according to the MCCH modification period length, and the MBMS service start sending time, determining a time for sending the received MBMS service session start request message to the access network network element, where the determined time is
  • the access network element updates the MCCH message before the service data of the MBMS service starts to be sent, and the updated MCCH message carries the scheduling information of the MBMS service.
  • the access network element may be an eNB
  • the current network element that receives the indication message sent by the access network element may be the core network element
  • the core network element may be one of the following: the broadcast multicast service center BMSC , Mobility Management Entity MME, Multicast Broadcast Coordination Entity MCE.
  • the foregoing MCCH may be one of the following: SC-MCCH in SC-PTM technology, MCCH in MBSFN technology.
  • a method for sending and receiving a service session ie, a service session processing method
  • the service session is processed below. The method is explained.
  • a service session processing method is provided, which is applicable to the transmission of the MBMS service session by the SC-PTM or the MBSFN technology in the NB-IoT and the eMTC.
  • the time indicates the start of the session, especially the time when the MBMS service data starts to be scheduled at the radio interface.
  • the service session processing method provided in the preferred embodiment is applicable to an MBMS service session transmitted by the MBSFN transmission technology and an MBMS service session transmitted by the SC-PTM technology.
  • the difference between the MBSFN and the SC-PTM is that the manner in which the service data channels are scheduled is different, which does not affect the specific technical solutions and implementation effects of the method of the preferred embodiment under the two transmission technologies.
  • the SC-MCCH channel under SC-PTM technology and the MCCH channel in MBSFN technology may be collectively referred to as a multicast control channel.
  • the SC-MTCH channel in SC-PTM technology and the MTCH channel in MBSFN technology may be collectively referred to as a multicast transmission channel. It should be noted that, for convenience of description, SC-MCCH and SC-MTCH are taken as an example for description in the preferred embodiment.
  • the access network element After receiving the MBMS session start request message (MBMS Session Start Request message) indicating the start of the MBMS service session S, the access network element updates the SC-MCCH message on the radio interface and indicates the MBMS service in the SC-MCCH message.
  • MBMS Session Start Request message indicating the start of the MBMS service session S
  • the access network element After receiving the MBMS session start request message (MBMS Session Start Request message) indicating the start of the MBMS service session S, the access network element updates the SC-MCCH message on the radio interface and indicates the MBMS service in the SC-MCCH message.
  • the access network element starts to update the SC-MCCH message from the SC-MCCH modification period MP0 (acting the same as the preset MCCH modification period).
  • the access network element dispatches and sends the MBMS service session S from a specific time.
  • the access network element receives or attempts to receive the MBMS service session S at a specific time (acting the same as the foregoing start scheduling time) through a signaling indication or a protocol.
  • the UE that needs to receive the MBMS service session S starts receiving or attempts to receive the SC-MTCH channel carrying the MBMS service session S from a specific time.
  • the access network element schedules the MBMS service session S from a specific time, including the following methods:
  • Session start method 1 The access network element schedules the transmission of the data of the MBMS service session S from the N2th SC-MTCH scheduling period after the N1th SC-MCCH modification period start position after the MP0.
  • FIG. 11 is a first schematic diagram of a session start mode of an access network element according to an embodiment of the present invention.
  • the access network element updates the SC-MCCH message in the SC-MCCH modification period MP0, and adds an indication to the MBMS. Identification and scheduling information of the business session S.
  • the access network starts scheduling the service data of the MBMS service session S in the N2th SC-MTCH scheduling period after the start position of the N1th SC-MCCH modification period after the MP0.
  • At least one of the above N1 and N2 is indicated in an SC-MCCH message or a system message.
  • N1 preferably takes a value of 1
  • the preferred value of N2 is 1, that is, the first SC-MTCH after the first SC-MCCH modification period starting position after the MP0 starts to schedule the transmission of the MBMS service.
  • Business data for session S is agreed by a protocol.
  • the configuration information of the SC-MCCH modification period is indicated in the system message.
  • Session start method 2 The SC-MTCH scheduling period of the access network element starting from the N3th radio frame after the MP0 end position or the start position, or the first SC-MTCH scheduling period after the N3th radio frame
  • the service data of the MBMS service session S is scheduled to be sent.
  • FIG. 12 is a second schematic diagram of a session start mode of an access network element according to an embodiment of the present invention.
  • the access network element updates the SC-MCCH message in the SC-MCCH modification period MP0, and adds an indication to the MBMS. Identification and scheduling information of the business session S.
  • the access network starts at the N3th radio frame after the MP0 end position or the start position
  • the SC-MTCH scheduling period, or the first SC-MTCH scheduling period after the N3th radio frame starts scheduling the transmission of the service data of the MBMS service session S.
  • the above N3 radio frames may also be represented as a time value, for example, N3 seconds.
  • the access network starts the SC-MTCH scheduling period starting at the N3th second after the MP0 end position or the start position, or after the N3th second.
  • An SC-MTCH scheduling period begins to transmit the service data of the MBMS service session S.
  • the above N3 is indicated in an SC-MCCH message or a system message.
  • the above N3 is agreed by a protocol.
  • Session start method 3 The access network element starts scheduling and transmitting the MBMS service from the Nth SC-MTCH scheduling period starting from the time when the system superframe number (H-SFN) of M_0 is modulo 0 to M. Business data for session S.
  • H-SFN system superframe number
  • FIG. 13 is a third schematic diagram of a session start mode of an access network element according to a preferred embodiment of the present invention.
  • the access network element updates the SC-MCCH message in the SC-MCCH modification period MP0, and adds an indication to the MBMS.
  • the service data of the MBMS service session S is scheduled to be sent.
  • N4, N5 and M are respectively indicated by a protocol, or an SC-MCCH message or a system message.
  • Session Start Method 4 The access network element in the SC-MCCH message containing the scheduling information of the MBMS service session S indicates the time value at which to start transmitting the MBMS service session data.
  • the form of the above time value includes: H-SFN and system frame number SFN, or SFN, or absolute time expressed in units of time.
  • FIG. 14 is a fourth schematic diagram of a session start mode of an access network element according to an embodiment of the present invention. As shown in FIG. 14, when the time value is H-SFN and SFN, the access network element is in the next H-SFN. SC-MTCH scheduling week with the SFN, or the radio frame represented by the SFN as the starting position The service data of the MBMS service session S is scheduled to be scheduled, or within the first SC-MTCH scheduling period after the radio frame.
  • the access network starts scheduling and sending in the SC-MTCH scheduling period starting from the time represented by the absolute time value, or in the first SC-MTCH scheduling period after the time represented by the absolute time value.
  • MBMS business session S business data When the time value is an absolute time, the access network starts scheduling and sending in the SC-MTCH scheduling period starting from the time represented by the absolute time value, or in the first SC-MTCH scheduling period after the time represented by the absolute time value.
  • the access network element may indicate, by signaling, a method type used by the UE to start the MBMS service session (acting the same as the foregoing scheduling type), and the access network element performs the MBMS service session by using the indicated method type of the service session.
  • the UE obtains a specific time to start receiving or attempting to receive an MBMS service session with the method type of the indicated service session.
  • the access network element identifies MP0 according to a combination of one or more of the manners provided in the above examples, and the UE knows the location of the MP0 according to one or more combinations of the following methods.
  • Method 1 for determining MP0 The access network element performs a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) signaling data communication interface (Data Communication Interface) in the MP0 before scheduling and transmitting the SC-MCCH message in the MP0. , referred to as DCI), or in the PDCCH signaling DCI that schedules SC-MCCH messages in MP0, indicates a change notification of the SC-MCCH.
  • PDCCH Physical Downlink Control Channel
  • DCI Physical Downlink Control Channel
  • the UE When the UE receives the change notification and receives the scheduling information of the MBMS service session that needs to be received in the SC-MCCH message received by the MP0 (acting the same as the preset MCCH message), the UE considers the SC-MCCH modification period.
  • the MP0 corresponding to the MBMS service session that it needs to receive.
  • the UE If the UE receives the SC-MCCH message containing the MBMS service session scheduling information that is required to be received, and does not detect the SC-MCCH message change notification, the UE starts immediately or starts from the next SC-MTCH scheduling period at the current time. Receiving service data of the MBMS service session S.
  • Method 2 of determining MP0 The UE receives the SC-MCCH message in a plurality of consecutive SC-MCCH periods, and starts to indicate the scheduling of the required MBMS service session in the SC-MCCH message within a certain SC-MCCH modification period.
  • the SC-MCCH modification period is considered as The corresponding MP0 of the MBMS service session.
  • the UE receives the SC-MCCH message in two consecutive SC-MCCH modification periods MP1, MP2, and if the UE does not find the scheduling information of the MBMS service session to be received in the MP1, the UE needs to find the required reception in the MP2. For the scheduling information of the MBMS service session, the UE considers that the MP2 is the MP0 corresponding to the MBMS service session that is required to be received.
  • the UE If the UE receives the SC-MCCH message containing the MBMS service session scheduling information that is required to be received, and in the previous SC-MCCH modification period, the UE does not receive the MBMS service session scheduling information that does not include the required reception.
  • the access network element indicates the update time of the scheduling information of the MBMS service session in the SC-MCCH message.
  • the form of the update time includes: an absolute time value, or at least one of H-SFN and SFN of the SC-MCCH modification period start position.
  • the update time is the time corresponding to the start position of the SC-MCCH modification period.
  • the UE When the UE receives the scheduling information of the MBMS service session that is to be received, if the starting position of the SC-MCCH modification period of the scheduling information is the update time, the UE considers that the SC-MCCH modification period is MP0 of the MBMS service session to be received.
  • the UE If the start time of the SC-MCCH modification period of the SC-MCCH message including the MBMS service session scheduling information that is required to be received by the UE is greater than the scheduling information update time of the MBMS service session indicated in the SC-MCCH message, the UE immediately The data of the MBMS service session S is started or started from the next SC-MTCH scheduling period at the current time.
  • the UE starts to receive the service data of the MBMS service session according to the time when the access network element starts to schedule the sending of the MBMS service session.
  • the data of the MBMS service session is scheduled to be sent in a certain SC-MTCH scheduling period, that is, a certain wireless subframe that can be used to schedule the SC-MTCH in the SC-MTCH scheduling period starts to send the scheduled MBMS service session.
  • Downlink control scheduling information of the data is scheduled to be sent in a certain SC-MTCH scheduling period, that is, a certain wireless subframe that can be used to schedule the SC-MTCH in the SC-MTCH scheduling period starts to send the scheduled MBMS service session.
  • the SC-MCCH message refers to an SC-MCCH configuration message, the function of the message including a flag indicating an MBMS service session transmitted by a single cell point-to-multipoint (SC-PTM) mode. Knowledge and scheduling information.
  • SC-PTM single cell point-to-multipoint
  • the system message includes SIB20, or SIB15 in the existing protocol, or a newly defined system information block.
  • the SC-MTCH channel is an SC-MTCH channel that specifically refers to the traffic data of the MBMS service session S in the instance.
  • the service session processing mode provided in this example is used by the access network element to determine a specific time to start scheduling an MBMS service session:
  • the access network element 2 receives the MBMS session start request message, and carries the time information of the core network element starting to send the service data, where the time information includes the absolute time T1 at which the core network element starts to send the service data, or the relative MBMS session start After the request message, the core network element starts to send the relative information of the service data (acting the same relative time as before).
  • the access network element 1 determines the specific time for starting the scheduling of the MBMS service session according to the received time information of the core network element starting to send the service data.
  • the access network element indicates the start scheduling time of one MBMS service data by using PDCCH signaling DCI or MAC CE.
  • the access network element performs scrambling on the PDCCH signaling DCI by using a G-RNTI, where the G-RNTI is used to schedule the RNTI that carries the MBMS service data.
  • the access network element schedules and transmits the PDCCH signaling DCI in a scheduling period of the MBMS service.
  • the MAC CE is carried by the MAC PDU, and the access network element is scheduled to be sent in the scheduling period of the MBMS service.
  • the access network indicates the scheduling information using the RNTI scrambled DCI for scheduling the MBMS service data, that is, the G-RNTI scrambled DCI of the MBMS service indicates the PDSCH channel carrying the MAC PDU. Scheduling information.
  • the SC-MCCH scheduling period in which the access network element updates the SC-MCCH message to indicate the scheduling information of the MBMS service, or the SC-MCCH repair after the SC-MCCH modification period The change cycle begins, and the above indication mode is executed until the data of the MBMS service is actually scheduled to be scheduled.
  • the access network element performs scheduling to use at least one PDCCH signaling DCI or MAC CE in all SC-MTCH scheduling periods of the MBMS service that meet the foregoing conditions, to indicate a start scheduling time of the MBMS service.
  • the foregoing start scheduling time indicated by the access network is a relative time relationship between SP0 and SP1, or a size of a time interval, where SP0 is an MBMS service in which the access network starts scheduling and transmitting the first service data packet of the MBMS service.
  • the scheduling period of the MBMS service in which the PDCCH signaling DCI or the MAC CE is located is scheduled by the SP1.
  • the size of the time interval is the size of the time interval between the start positions of the SP1 and the SP0, and the unit may include at least one of the following: the number of SFNs, the number of H-SFNs, and the number of H-SFNs and SFNs.
  • the access network element eNB updates the SC-MCCH message in the SC-MCCH modification period MP0, and adds the scheduling information of the MBMS service S in the SC-MCCH message.
  • the access network element eNB indicates the MBMS service in each SC-MTCH scheduling period of the MBMS service S from the start position of the SC-MCCH modification period MP0 to the start of scheduling the service data of the MBMS service S.
  • the start time of S is scheduled.
  • the start scheduling time is in the form of: scheduling the start position of the SC-MTCH scheduling period of the DCI or MAC CE indicating the start scheduling time of the MBMS service, and starting position of the SC-MTCH scheduling period of the service data for starting the scheduling of the MBMS service.
  • the MBMS service start scheduling times scheduled to be sent in different SC-MTCH scheduling periods are different from each other.
  • the SC-MTCH scheduling period SP1 the time distance between the start position of the start scheduling time of SP1 and the SC-MTCH scheduling period of starting to schedule the transmission of the MBMS service is indicated, and the SC-MTCH scheduling period is performed.
  • the start scheduling time indicated in SP2 is the time distance between the start position of SP2 and the SC-MTCH scheduling period at which scheduling of the MBMS service is started.
  • the first access network element Receiving, by the second network element, the first access network element to indicate the SC-MCCH configured in the subordinate cell The length of the modification period and the timing information of the subordinate cells.
  • the timing information of the subordinate cell refers to at least one of the current SFN and the H-SFN number of the subordinate cell when the timing information is sent.
  • the second network element sends and receives to the first access network network element according to the SC-MCCH modification period length of the subordinate cell, the timing information of the subordinate cell, and the MBMS service start transmission time indicated in the received MBMS Session start request message.
  • the MBMS session start request message The MBMS session start request message.
  • the time that the second network element sends the received MBMS session start request message, so that the first access network element updates the SC-MCCH message on the radio interface before the data of the MBMS service starts to be sent For example, as shown in FIG. 16, the second network element sends the MBMS session start requet message at time T0 to ensure that the first access network element is received at time T1, and can perform the next SC-MCCH modification period at this moment.
  • the SC-MCCH message is updated to indicate scheduling information of the MBMS service.
  • the time at which the MBMS service starts to be transmitted is T2, and T2 is located after the SC-MCCH modification period.
  • the first access network element may be an eNB, and the second network element may be a core network element BMSC, MME or MCE.
  • the access network element indicates that the UE that needs to receive a certain MBMS service session starts receiving data of the MBMS service session at a specific time, thereby preventing the UE from starting to try to receive the MBMS service data prematurely. , or the UE starts receiving the MBMS service data too late, resulting in incomplete reception.
  • the possibility of saving UE power consumption and avoiding the UE not being able to receive completely is achieved.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention may be soft in nature or in part contributing to the prior art.
  • the form of the product is stored in a storage medium (such as ROM / RAM, disk, CD), including a number of instructions to make a terminal device (can be a mobile phone, computer, server, or network) A device or the like) performs the methods of various embodiments of the present invention.
  • a service session receiving apparatus is provided, and the apparatus is configured to implement the foregoing embodiments and application implementation manners, and details have been omitted for description.
  • the term "module" may implement a combination of at least one of software and hardware for a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 17 is a structural block diagram 1 of a service session receiving apparatus according to an embodiment of the present invention. As shown in FIG. 17, the apparatus includes:
  • the determining module 172 is configured to determine a start scheduling time for the access network element to start scheduling to send an MBMS service session;
  • the receiving module 174 is connected to the determining module 172, and configured to receive the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the determining module 172 is further configured to determine a preset multicast control channel MCCH modification period, where the access network element updates the MCCH message from the preset MCCH modification period, and the updated MCCH message carries the MBMS service.
  • the scheduling information is determined according to the determined preset MCCH modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session, and determining the start of the access network element to start scheduling and transmitting the MBMS service session. Schedule time.
  • FIG. 18 is a structural block diagram of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention. As shown in FIG. 18, the determining module 172 includes:
  • the first determining unit 182 is configured to determine whether the received MCCH message carries scheduling information corresponding to the MBMS service session;
  • the second determining unit 184 is connected to the first determining unit 182, and configured to determine that the first determining unit determines that the scheduling result is that the scheduling information corresponding to the MBMS service session is carried. Whether to receive an update notification configured to indicate MCCH update;
  • the first determining unit 186 is connected to the second determining unit 184, and configured to determine that the preset MCCH modification period is: receiving the MCCH carrying the scheduling information, if the determining result of the second determining unit is that the update notification is received.
  • the MCCH modification period of the message is connected to the second determining unit 184, and configured to determine that the preset MCCH modification period is: receiving the MCCH carrying the scheduling information, if the determining result of the second determining unit is that the update notification is received.
  • the MCCH modification period of the message is connected to the second determining unit 184, and configured to determine that the preset MCCH modification period is: receiving the MCCH carrying the scheduling information, if the determining result of the second determining unit is that the update notification is received.
  • the receiving module 174 may be further configured to: when the determination result of the second determining unit 184 is that the update notification is not received, from receiving the current scheduling period of the preset MCCH message or from the next scheduling period of the current scheduling period.
  • the MTCH scheduling period begins to receive service data corresponding to the MBMS service session.
  • FIG. 19 is a structural block diagram 2 of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention. As shown in FIG. 19, the determining module 172 includes:
  • the third determining unit 192 is configured to determine whether the MCCH message is received in the at least two consecutive MCCH modification periods, and is only carried in the MCCH message received in the last MCCH modification period of the at least two consecutive MCCH modification periods. There is scheduling information corresponding to the MBMS service session;
  • the second determining unit 194 is connected to the third determining unit 192, and configured to determine that the preset MCCH modification period is the last MCCH of at least two consecutive MCCH modification periods, if the determination result of the third determining unit is yes. Modify the period.
  • the receiving module 174 is further configured to: when the determination result of the third determining unit 192 is NO, start from receiving the current scheduling period of the preset MCCH message or starting from the next MTCH scheduling period of the current scheduling period. Receiving service data corresponding to the MBMS service session.
  • FIG. 20 is a structural block diagram 3 of a determining module 172 of a service session receiving apparatus according to an embodiment of the present invention. As shown in FIG. 20, the determining module 172 includes: a fourth determining unit 202 and a third determining unit 204. Module 172 is described.
  • the receiving module 174 is further configured to receive a first MCCH message carrying an update time, where the update time corresponds to a start position of the preset MCCH modification period;
  • the fourth determining unit 202 is configured to determine whether the starting position of the MCCH modification period of the second MCCH message is the update time, where the second MCCH message carries scheduling information corresponding to the MBMS service session; and the third determining unit 204, connected to the fourth determining unit 202, configured to determine, in a case where the determining result of the fourth determining unit 202 is that the starting position of the MCCH modification period of the second MCCH message is the update time, determining that the preset MCCH modification period is the MCCH that receives the second MCCH message. Modify the period.
  • the receiving module 174 is further configured to receive the second MCCH message if the determining result of the fourth determining unit 202 is that the starting position of the MCCH modification period of the second MCCH message is greater than the update time.
  • the current scheduling period or the service data corresponding to the MBMS service session is received from the next MTCH scheduling period of the current scheduling period.
  • the determining module 172 is further configured to determine, according to the determined preset MCCH modification period, that the start scheduling time is at least one of the following: after the preset MCCH modification period, after the Nth MCCH modification period start position N2 multicast transmission channel MTCH scheduling periods, where N1, N2 are positive integers; MCCH modifies the multicast transmission channel MTCH scheduling period starting from the N3th radio frame after the start position or the end position, or the N3th radio frame After the first MTCH scheduling period, where N3 is a positive integer; the Nthth Mth scheduling period after the preset MCCH modification period satisfies the Nth MTCH scheduling period at which the system superframe number is modulo 0 to M, where N4, N5, and M are positive integers.
  • FIG. 21 is a structural block diagram of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG. 21, the apparatus includes:
  • the determining module 212 is configured to determine a start scheduling time for starting to schedule sending an MBMS service session
  • the sending module 214 is connected to the determining module 212, and is configured to start scheduling and sending the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the determining module 212 is further configured to: determine to start to update a preset MCCH modification period of the preset multicast control channel MCCH message corresponding to the MBMS service session; according to the determined preset MCCH modification period, and preset MCCH modification The correspondence between the period and the start scheduling time of starting the scheduling of the MBMS service session is started, and the start scheduling time for starting to schedule the sending of the MBMS service session is determined.
  • the determining module 212 is further configured to determine, according to the determined preset MCCH modification period, that the start scheduling time is at least one of the following: after the preset MCCH modification period, after the Nth MCCH modification period start position N2 multicast transmission channel MTCH scheduling a period in which N1, N2 are positive integers; a multicast transmission channel MTCH scheduling period starting from the N3th radio frame after the start or end position of the MCCH modification period, or a first MTCH scheduling period after the N3th radio frame Wherein, N3 is a positive integer; the Nthth Mth scheduling channel after the preset MCCH modification period satisfies the M5 scheduling period of the N5th multicast transmission channel starting from the time when the system superframe number is modulo 0, wherein N4, N5 and M is a positive integer.
  • FIG. 22 is a block diagram showing the structure of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG. 22, the device includes:
  • the update module 222 is configured to update the multicast control channel MCCH message, where the MCCH message carries scheduling information corresponding to the MBMS service session, and the scheduling information includes time information used to indicate the start scheduling time.
  • the time information may include one of: a system superframe number and a system frame number, a system frame number, and an absolute time value expressed in units of time.
  • the sending module 214 is further configured to: after the time frame includes the system superframe number and the system frame number or the system frame number, the system superframe number and the system after updating the radio frame of the MCCH message
  • the frame number, or the radio frame represented by the system frame number is the MTCH scheduling period of the multimedia transmission channel of the apocalyptic location, or starts to schedule the transmission of the service corresponding to the MBMS service session in the first MTCH scheduling period after the radio frame of the MCCH message is updated. data.
  • the sending module 212 may be further configured to: in a case where the time information includes an absolute time value expressed in units of time, within a multimedia transmission channel MTCH scheduling period starting at a time represented by an absolute time value, or in an absolute time During the first MTCH scheduling period after the time of the representative, the scheduling of the service data corresponding to the MBMS service session is started.
  • the determining module 212 is further configured to determine, before determining a start scheduling time for starting to schedule the sending of the MBMS service session of the MBMS service session, the scheduling type used by the scheduled sending MBMS service session, where the scheduling type is scheduled to be sent.
  • the preset type used by the MBMS service session; determining the start scheduling time according to the determined scheduling type; the sending module 174 may be further configured to send signaling to the user equipment UE after determining the scheduling type used by the scheduled MBMS service session.
  • the message, where the signaling message carries a scheduling type.
  • FIG. 23 is a structural block diagram 3 of a service session sending device according to an embodiment of the present invention. As shown in FIG. 23, the device includes:
  • the receiving module 232 is configured to receive a multimedia broadcast multicast service MBMS session start request message, where the MBMS session start request message carries time information corresponding to the service data corresponding to the core network element starting to send the MBMS service session;
  • the determining module 234 is connected to the receiving module 232, and configured to determine, according to the time information carried in the MBMS session start request message, the start scheduling time for starting to schedule the sending of the MBMS service session.
  • the foregoing time information may include at least one of an absolute time and a relative time, where the absolute time is a time when the core network element starts to send the service data corresponding to the MBMS service session, and the relative time is that the core network element starts to send the MBMS.
  • the relative time between the time of the service data corresponding to the service session and the time when the core network element sends the MBMS session start request message.
  • the foregoing MBMS session start request message is sent by a core network element or an access network element.
  • FIG. 24 is a structural block diagram 4 of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG. 24, the apparatus includes:
  • the update module 242 is configured to update the multicast control channel MCCH message, where the updated MCCH message carries scheduling information of the MBMS service of the multimedia broadcast multicast service;
  • the indication module 244 is connected to the update module 242, configured to indicate the MBMS through the downlink control information DCI of the physical downlink control channel PDCCH or the media access control MAC control unit CE before starting to schedule the service data of the MBMS service after updating the MCCH message.
  • the sending module 246 is connected to the foregoing indicating module 244, and is configured to start scheduling the service data for sending the MBMS service according to the start scheduling time.
  • FIG. 25 is a block diagram 5 of a structure of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG. 24, the device includes:
  • the scrambling module 252 is configured to scramble the DCI of the PDCCH by using a group radio network temporary identifier G-RNTI, where the G-RNTI is a radio network temporary identifier RNTI for scheduling service data carrying the MBMS service.
  • the indication module 234 is further configured to start after updating the MCCH message. Before scheduling the service data of the MBMS service, in the MTCH scheduling period of the multicast transmission channel of one or more MBMS services, the start scheduling time of the service data of the MBMS service is indicated.
  • FIG. 26 is a structural block diagram 2 of a service session receiving apparatus according to an embodiment of the present invention. As shown in FIG. 26, the apparatus includes:
  • the first receiving module 262 is configured to receive the updated MCCH message, where the updated MCCH message adds scheduling information of the MBMS service with respect to the MCCH message before the update;
  • the second receiving module 264 is connected to the first receiving module 262, and configured to receive, after receiving the updated MCCH message, indication information of the MBMS service sent by the DCI of the PDCCH or the MAC CE, where the indication information is used to indicate the MBMS service.
  • the third receiving module 266 is connected to the second receiving module 264 and configured to receive the service data of the MBMS service according to the indicated starting scheduling time.
  • the start scheduling time may be a relative time relationship between the first scheduling period and the second scheduling period or a size of the time interval, where the first scheduling period is the first to send the MBMS service to the access network element scheduling
  • the scheduling period of the MBMS service where the service data packets are located, and the second scheduling period is the scheduling period of the MBMS service in which the DCI of the PDCCH or the MAC CE is scheduled to be scheduled.
  • the second receiving module 264 is further configured to: after receiving the updated MCCH message, receive one or more indication information, where the indication information is in one or more MBMSs, before receiving the service data of the MBMS service.
  • the service is sent within the MTCH scheduling period.
  • FIG. 27 is a structural block diagram 6 of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG.
  • the receiving module 272 is configured to receive an indication message sent by the network element of the access network, where the indication message carries the length of the MCCH modification period of the multicast control channel configured in the subordinate cell of the access network element, and the timing information of the subordinate cell.
  • the timing information is used to indicate a time of starting point of at least one of a system frame number and a system superframe number of the subordinate cell, or is used to indicate at least one of a current system frame number and a system superframe number of the subordinate cell when the timing information is sent. ;
  • the sending module 274 is connected to the receiving module 272 and configured to modify the week according to the MCCH.
  • the length of the period, the timing information, and the MBMS service start transmission time indicated in the received MBMS service session start request message of the multimedia broadcast multicast service, and the received MBMS session start request message is sent to the access network element.
  • FIG. 28 is a structural block diagram of a service session sending apparatus according to an embodiment of the present invention. As shown in FIG. 28, the device includes:
  • the determining module 282 is configured to determine, according to the MCCH modification period length, and the MBMS service start sending time, a time for sending the received MBMS service session start request message to the access network network element, where the determined time makes the access network element Before the service data of the MBMS service starts to be sent, the MCCH message is updated, and the updated MCCH message carries the scheduling information of the MBMS service.
  • the MCCH in each device in the foregoing implementation may be one of the following: SC-MCCH in SC-PTM technology, MCCH in MBSFN technology.
  • the MTCH can be one of the following: SC-MTCH in SC-PTM technology, MTCH in MBSFN technology.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • FIG. 29 is a structural block diagram of a service session system according to an embodiment of the present invention.
  • the service session system includes: an access network element 292 and a terminal 294.
  • the access network element 292 includes: a first processor 2922 and a first transmission device 2924.
  • the terminal 294 includes: a second processor 2942 and a second transmission device 2944, where
  • the first processor 2922 is configured to determine a start scheduling time for starting to schedule sending an MBMS service session
  • the first transmission device 2924 is connected to the first processor 2922, and configured to start scheduling and transmitting service data corresponding to the MBMS service session according to the determined start scheduling time;
  • the second processor 2942 is configured to determine a start scheduling time for the access network element to start scheduling to send an MBMS service session;
  • a second transmission device 2944 coupled to the second processor 2942, configured to be determined according to The scheduling time is started, and the service data corresponding to the MBMS service session is received.
  • the first processor 2922 may be further configured to determine a start scheduling time according to a protocol convention or a signaling specification.
  • the second processor 2942 may be further configured to determine a start scheduling time according to a protocol agreement or a signaling specification.
  • the first processor 2922 is further configured to receive an MBMS session start request message, where the MBMS session start request message carries time information corresponding to the service data corresponding to the core network element starting to send the MBMS service session; The time information carried in the session start request message determines the start scheduling time.
  • Embodiments of the present invention provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining the start scheduling time of the access network element to start scheduling and sending the MBMS service session includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining the preset MCCH modification period includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method further includes:
  • the service data corresponding to the MBMS service session is received from the current scheduling period of receiving the preset MCCH message or from the next MTCH scheduling period of the current scheduling period.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining the preset MCCH modification period includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the service data corresponding to the MBMS service session is received from the current scheduling period of receiving the preset MCCH message or from the next MTCH scheduling period of the current scheduling period.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining the preset MCCH modification period includes:
  • the first MCCH message carrying the update time is received, where the update time corresponds to a start position of the preset MCCH modification period.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method further includes:
  • the MBMS is received from the current scheduling period of receiving the second MCCH message or from the next MTCH scheduling period of the current scheduling period.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining, according to the determined preset MCCH modification period, the correspondence between the preset MCCH modification period and the start scheduling time of the start scheduling and sending the MBMS service session, determining the start scheduling time of the access network element to start scheduling and sending the MBMS service session includes:
  • N1, N2 are positive integers; the MCH scheduling period of the multicast transmission channel starting from the N3th radio frame after the start or end position of the MCCH modification period, or the first MTCH scheduling period after the N3th radio frame, wherein N3 is a positive integer; the Nthth Mth scheduling channel after the preset MCCH modification period satisfies the M5 scheduling period of the N5th multicast transmission channel starting from the time when the system superframe number is modulo 0 to the M, where N4, N5, and M are A positive integer.
  • MCCH is one of the following: Single-cell multicast control channel SC-MCCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MCCH in broadcast single frequency network MBSFN technology.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the MTCH is one of the following: single cell point-to-multipoint transmission SC-PTCH in single-cell multicast transmission channel SC-PTM technology, MTCH in multicast broadcast single-frequency network MBSFN technology.
  • a storage medium is also provided in an embodiment of the present invention.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the start scheduling time for determining to start scheduling to send an MBMS service session includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • Determining, according to the determined preset MCCH modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session, determining the start scheduling time for starting to schedule the sending of the MBMS service session includes:
  • N1, N2 are positive integers; the MCH scheduling period of the multicast transmission channel starting from the N3th radio frame after the start or end position of the MCCH modification period, or the first MTCH scheduling period after the N3th radio frame, wherein N3 is a positive integer; the Nthth Mth scheduling channel after the preset MCCH modification period satisfies the M5 scheduling period of the N5th multicast transmission channel starting from the time when the system superframe number is modulo 0 to the M, where N4, N5, and M are A positive integer.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method Before sending the service data corresponding to the MBMS service session according to the determined start scheduling time, the method further includes:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the time information comprises one of: a system superframe number and a system frame number, a system frame number, an absolute time value expressed in units of time.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the service data corresponding to the start of the scheduled transmission of the MBMS service session according to the determined start scheduling time includes:
  • the next multimedia transmission channel MTCH scheduling period with the system superframe number and the system frame number, or the system frame number indicated by the system frame number after updating the radio frame of the MCCH message, or the wireless channel for updating the MCCH message During the first MTCH scheduling period after the frame, the service data corresponding to the MBMS service session is scheduled to be sent.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the time information includes the absolute time value in units of time
  • starting to schedule the service data corresponding to the sending the MBMS service session includes:
  • S1 Start to schedule the transmission of the service data corresponding to the MBMS service session in the MTCH scheduling period of the multimedia transmission channel starting at the time represented by the absolute time value, or in the first MTCH scheduling period after the time represented by the absolute time.
  • MCCH is one of the following: Single-cell multicast control channel SC-MCCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MCCH in broadcast single frequency network MBSFN technology.
  • the storage medium is further configured to store program code for performing the following steps:
  • MTCH is one of the following: Single-cell multicast transmission channel SC-MTCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MTCH in broadcast single frequency network MBSFN technology.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method Before determining a start scheduling time for starting to schedule an MBMS service session for transmitting a multimedia broadcast multicast service, the method further includes: determining a scheduling type used by the scheduling to send an MBMS service session, where the scheduling type is a pre-schedule used for scheduling to send an MBMS service session.
  • Type 1 a scheduling type used by the scheduling to send an MBMS service session, where the scheduling type is a pre-schedule used for scheduling to send an MBMS service session.
  • S2 Determine a start scheduling time for starting to schedule and send a multimedia broadcast multicast service MBMS service session, including: determining a start scheduling time according to the determined scheduling type;
  • the method further includes: sending a signaling message to the user equipment UE, where the signaling message carries a scheduling type.
  • Embodiments of the present invention provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the storage medium is further configured to store program code for performing the following steps: the time information includes at least one of an absolute time and a relative time, wherein the absolute time is that the core network element starts to send the service corresponding to the MBMS service session.
  • the time of the data, the relative time is the relative time between the time when the core network element starts to send the service data corresponding to the MBMS service session and the time when the core network element sends the MBMS session start request message.
  • the storage medium is further arranged to store program code for performing the step of: the MBMS Session Start Request message is sent by the core network element or the access network element.
  • a storage medium is also provided in an embodiment of the present invention.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the multicast control channel MCCH message is updated, where the updated MCCH message carries scheduling information of the MBMS service of the multimedia broadcast multicast service;
  • the downlink control information DCI or media access control of the physical downlink control channel PDCCH is started before the service data of the MBMS service is started.
  • the MAC control unit CE indicates the start scheduling time of the service data of the MBMS service;
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method further includes:
  • the DCI of the PDCCH is scrambled by using a group radio network temporary identifier G-RNTI, where the G-RNTI is a radio network temporary identifier RNTI for scheduling service data carrying the MBMS service.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the MAC CE In the case of indicating the start scheduling time of the service data of the MBMS service by the MAC CE, the MAC CE is carried by the MAC protocol data unit PDU, wherein the scheduling information indicating the physical downlink shared channel PDSCH carrying the MAC protocol data unit PDU is in the MBMS service.
  • the wireless network temporarily indicates the indication in the DCI scrambled DCI.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the start scheduling time of the service data of the MBMS service indicated by the DCI or MAC CE of the PDCCH includes:
  • the start scheduling time of the service data of the MBMS service is indicated in the MTCH scheduling period of the one or more MBMS services.
  • the storage medium is further configured to store program code for performing the following steps: the start scheduling time is a relative time relationship between the first scheduling period and the second scheduling period or a size of the time interval, wherein the first scheduling The period is a scheduling period of the MBMS service in which the first service data packet of the MBMS service is scheduled to be scheduled, and the second scheduling period is a scheduling period of the MBMS service in which the DCI of the PDCCH or the MAC CE is scheduled to be scheduled.
  • the storage medium is further configured to store program code for performing the following steps:
  • MTCH is one of the following: Single-cell multicast transmission channel SC-MTCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MTCH in broadcast single frequency network MBSFN technology.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the MCCH is one of the following: single cell point-to-multipoint transmission SC-MCCH in the SC-PTM technology, MCCH in the multicast broadcast single frequency network MBSFN technology.
  • a storage medium is also provided in an embodiment of the present invention.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the start scheduling time is a relative time relationship or a time interval between the first scheduling period and the second scheduling period, where the first scheduling period is the first service data packet that is scheduled to send the MBMS service with the access network element.
  • the scheduling period of the MBMS service, and the second scheduling period is a scheduling period of the MBMS service in which the DCI of the PDCCH or the MAC CE is scheduled to be scheduled.
  • the storage medium is further configured to store program code for performing the following steps: after receiving the updated MCCH message, before receiving the service data of the MBMS service, the received indication information is one or more, wherein The indication information is sent during a multicast transmission channel MTCH scheduling period of one or more MBMS services.
  • the storage medium is further configured to store program code for performing the following steps:
  • MTCH is one of the following: Single-cell multicast transmission channel SC-MTCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MTCH in broadcast single frequency network MBSFN technology.
  • MCCH is one of the following: Single-cell multicast control channel SC-MCCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MCCH in broadcast single frequency network MBSFN technology.
  • a storage medium is also provided in an embodiment of the present invention.
  • the above storage medium may be arranged to store program code for performing the following steps:
  • S1 Receive an indication message sent by the network element of the access network, where the indication message carries the length of the MCCH modification period of the multicast control channel configured in the subordinate cell of the access network element, and the timing information of the subordinate cell, where the timing information is used. And a time indicating a start point of at least one of a system frame number and a system superframe number of the subordinate cell, or at least one of a current system frame number and a system superframe number of the subordinate cell when the timing information is sent;
  • the storage medium is further arranged to store program code for performing the following steps:
  • the method Before sending the received MBMS session start request message to the access network element, the method further includes:
  • the MCCH message is updated, and the updated MCCH message carries the scheduling information of the MBMS service.
  • the storage medium is further configured to store program code for performing the following steps: the access network element is an eNB, and the current network element that receives the indication message sent by the access network element is a core network element, and the core network
  • the network element is one of the following: a broadcast multicast service center BMSC, a mobility management entity MME, and a multicast broadcast coordination entity MCE.
  • MCCH is one of the following: Single-cell multicast control channel SC-MCCH in single-cell point-to-multipoint transmission SC-PTM technology, Broadcast MCCH in broadcast single frequency network MBSFN technology.
  • the foregoing storage medium is a computer readable storage medium, which may include, but is not limited to, a USB flash drive, a read-only memory (ROM), and a random access memory (Random Access).
  • Memory referred to as RAM
  • mobile hard disk disk or optical disk, and other media that can store program code.
  • the processor performs, according to the stored program code in the storage medium, determining that the access network element starts scheduling to send the MBMS service session of the multimedia broadcast multicast service. Start scheduling time; receive service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the processor performs, according to the stored program code in the storage medium, determining that the access network element starts scheduling to send the MBMS service session start scheduling time, including: determining the preset multicast control channel MCCH modification.
  • the cycle wherein the access network element updates the MCCH message from the preset MCCH modification period, and the updated MCCH message carries the scheduling information of the MBMS service; according to the determined preset MCCH modification period, and the preset MCCH modification period and The correspondence between the start scheduling times of the MBMS service sessions is scheduled to be scheduled, and the start scheduling time of the access network element to start scheduling the sending of the MBMS service session is determined.
  • the processor performs, according to the stored program code in the storage medium, determining that the preset MCCH modification period includes: determining whether the received MCCH message carries scheduling information corresponding to the MBMS service session; If the result of the determination is that the scheduling information corresponding to the MBMS service session is carried, it is determined whether an update notification for indicating the MCCH update is received. If the determination result is that the update notification is received, determining that the preset MCCH modification period is : Receive the MCCH modification period of the MCCH message carrying the scheduling information.
  • the processor performs, according to the stored program code in the storage medium, after determining whether the update notification for indicating the MCCH update is received, the method further includes: determining that the update notification is not received
  • the service data corresponding to the MBMS service session is received from the current scheduling period of receiving the preset MCCH message or from the next MTCH scheduling period of the current scheduling period.
  • the processor performs, according to the stored program code in the storage medium: determining the preset MCCH modification period includes: determining whether the MCCH message is received in at least two consecutive MCCH modification periods, and only The MCCH message received in the last MCCH modification period of the at least two consecutive MCCH modification periods carries scheduling information corresponding to the MBMS service session; if the determination result is yes, the preset MCCH modification period is determined to be at least The last MCCH modification period of two consecutive MCCH modification cycles.
  • the processor performs, according to the stored program code in the storage medium: determining whether the MCCH message is received in at least two consecutive MCCH modification periods, and only in at least two consecutive MCCHs Received during the last MCCH modification period of the modification cycle After the MCCH message carries the scheduling information, the method further includes: receiving the MBMS service session from the current scheduling period of receiving the preset MCCH message or starting from the next MTCH scheduling period of the current scheduling period, if the determination result is negative. Corresponding business data.
  • the processor performs, according to the stored program code in the storage medium, determining that the preset MCCH modification period comprises: receiving the first MCCH message carrying the update time, where the update time is preset with the MCCH. And determining, according to the start position of the modification period, whether the start position of the MCCH modification period of the second MCCH message is the update time, where the second MCCH message carries the scheduling information corresponding to the MBMS service session; In the case that the start position of the MCCH modification period of the second MCCH message is the update time, it is determined that the preset MCCH modification period is the MCCH modification period in which the second MCCH message is received.
  • the processor performs, according to the stored program code in the storage medium, after determining whether the start position of the MCCH modification period of the second MCCH message is the update time, the method further includes: determining The result is that if the starting position of the MCCH modification period of the second MCCH message is greater than the update time, the MBMS service session is received from the current scheduling period of receiving the second MCCH message or from the next MTCH scheduling period of the current scheduling period. Corresponding business data.
  • the processor performs, according to the stored program code in the storage medium, according to the determined preset MCCH modification period, and the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session. And determining, according to the determined preset MCCH modification period, determining that the start scheduling time is at least one of the following: a preset after the MCCH modification period.
  • MCCH modifies the multicast transmission starting from the N3th radio frame after the start position or the end position of the period Channel MTCH scheduling period, or the first MTCH scheduling period after the N3th radio frame, where N3 is a positive integer;
  • the Nthth after the preset MCCH modification period satisfies the time when the system superframe number is modulo 0 to M
  • the processor executes according to the stored program code in the storage medium: the MCCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single cell multicast control channel SC- MCCH, MCCH in multicast broadcast single frequency network MBSFN technology.
  • the processor executes according to the stored program code in the storage medium: the MTCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single-cell multicast transmission channel SC- MTCH, MTCH in Multicast Broadcast Single Frequency Network MBSFN Technology.
  • the processor performs, according to the stored program code in the storage medium, determining a start scheduling time for starting to schedule the MBMS service session for transmitting the multimedia broadcast multicast service; and starting the scheduling and sending according to the determined start scheduling time.
  • the processor performs, according to the stored program code in the storage medium, determining to start scheduling to send the MBMS service session start scheduling time, including: determining to start updating the preset multicast control corresponding to the MBMS service session.
  • the preset MCCH modification period of the channel MCCH message is determined according to the determined preset MCCH modification period, and the correspondence between the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session, and determining to start scheduling and transmitting the MBMS service session. Start scheduling time.
  • the processor performs, according to the stored program code in the storage medium, according to the determined preset MCCH modification period, and the preset MCCH modification period and the start scheduling time of starting the scheduled transmission of the MBMS service session. And determining, according to the determined preset MCCH modification period, determining that the start scheduling time is at least one of the following: the Nth MCCH modification period after the preset MCCH modification period.
  • the processor performs, according to the stored program code in the storage medium, to send the service data corresponding to the MBMS service session according to the determined start scheduling time.
  • the method further includes: updating the multicast control channel MCCH message, where the MCCH message carries scheduling information corresponding to the MBMS service session, and the scheduling information includes time information used to indicate the start scheduling time.
  • the processor executes according to the stored program code in the storage medium: the time information includes one of: a system super frame number and a system frame number, a system frame number, and an absolute time expressed in units of time. value.
  • the processor performs, according to the stored program code in the storage medium, in a case where the time information includes a system superframe number and a system frame number or a system frame number, according to the determined start scheduling time,
  • Starting to schedule the transmission of the service data corresponding to the MBMS service session includes: following the radio frame of the MCCH message, the next multimedia transmission channel MTCH with the system superframe number and the system frame number, or the system frame number represented by the system frame number as the apocalyptic location
  • the processor performs, according to the stored program code in the storage medium, in the case that the time information includes an absolute time value expressed in units of time, starting to schedule the sending of the MBMS according to the determined start scheduling time.
  • the service data corresponding to the service session includes: starting to schedule the transmission of the MBMS service session in the MTCH scheduling period starting at the time represented by the absolute time value, or in the first MTCH scheduling period after the time represented by the absolute time. Business data.
  • the processor executes according to the stored program code in the storage medium: the MCCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single cell multicast control channel SC- MCCH, MCCH in multicast broadcast single frequency network MBSFN technology.
  • the processor executes according to the stored program code in the storage medium: the MTCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single-cell multicast transmission channel SC- MTCH, MTCH in Multicast Broadcast Single Frequency Network MBSFN Technology.
  • the processor performs, according to the stored program code in the storage medium, before determining to start scheduling the start of the scheduling time of sending the MBMS service session of the multimedia broadcast multicast service, the method further includes: determining to schedule sending the MBMS service.
  • the scheduling type used by the session where the scheduling type is a preset type used to schedule the sending of the MBMS service session;
  • the sending start time of the MBMS service session of the multimedia broadcast multicast service includes: determining the start scheduling time according to the determined scheduling type; after determining the scheduling type used for scheduling the sending of the MBMS service session, the method further includes: sending a message to the user equipment UE The message is sent, wherein the signaling message carries a scheduling type.
  • the processor performs: receiving a multimedia broadcast multicast service MBMS session start request message according to the stored program code in the storage medium, where the MBMS session start request message carries the core network element to start sending The time information corresponding to the service data corresponding to the MBMS service session; determining the start scheduling time for starting to schedule the transmission of the MBMS service session according to the time information carried in the MBMS session start request message.
  • the processor executes according to the stored program code in the storage medium: the time information includes at least one of an absolute time and a relative time, wherein the absolute time is
  • the time when the core network element starts to send the service data corresponding to the MBMS service session, and the relative time is between the time when the core network element starts to send the service data corresponding to the MBMS service session and the time when the core network element sends the MBMS session start request message. Relative Time.
  • the processor executes according to the stored program code in the storage medium: the MBMS session start request message is sent by the core network element or the access network element.
  • the processor performs: updating the multicast control channel MCCH message according to the stored program code in the storage medium, where the updated MCCH message carries the scheduling of the MBMS service of the multimedia broadcast multicast service.
  • the downlink control information DCI of the physical downlink control channel PDCCH or the media access control MAC control unit CE indicates the start scheduling time of the service data of the MBMS service; The scheduling time starts to schedule the service data of the MBMS service.
  • the processor performs, according to the stored program code in the storage medium, before the start scheduling time of the service data of the MBMS service by using the DCI of the PDCCH, further comprising: using the group wireless network temporary identifier G
  • the RNTI scrambles the DCI of the PDCCH, where the G-RNTI is a radio network temporary identifier RNTI for scheduling service data carrying the MBMS service.
  • the processor executes according to the stored program code in the storage medium.
  • the radio network of the MBMS service temporarily indicates the indication in the DCI scrambled DCI.
  • the processor performs, according to the stored program code in the storage medium, that the start scheduling time of the service data of the MBMS service by using the DCI or the MAC CE of the PDCCH includes: starting the scheduling after updating the MCCH message.
  • the start scheduling time of the service data of the MBMS service is indicated.
  • the processor performs, according to the stored program code in the storage medium, the start scheduling time is a relative time relationship between the first scheduling period and the second scheduling period, or a size of the time interval, where
  • the first scheduling period is a scheduling period of the MBMS service in which the first service data packet of the MBMS service is scheduled to be scheduled
  • the second scheduling period is a scheduling period of the MBMS service in which the DCI of the PDCCH or the MAC CE is scheduled to be scheduled.
  • the processor executes according to the stored program code in the storage medium: the MTCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single-cell multicast transmission channel SC- MTCH, MTCH in Multicast Broadcast Single Frequency Network MBSFN Technology.
  • the processor executes according to the stored program code in the storage medium: the MCCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single cell multicast control channel SC- MCCH, MCCH in multicast broadcast single frequency network MBSFN technology.
  • the processor performs: receiving an updated multicast control channel MCCH message according to the stored program code in the storage medium, wherein the updated MCCH message adds a multimedia broadcast with respect to the MCCH message before the update.
  • the scheduling information of the MBMS service of the multicast service after receiving the updated MCCH message, receiving the downlink control information DCI of the physical downlink control channel PDCCH or the indication information of the MBMS service sent by the media access control MAC control unit CE, where the indication
  • the information is used to indicate the start scheduling time of the service data of the MBMS service; and receive the service data of the MBMS service according to the indicated start scheduling time.
  • the processor executes according to the stored program code in the storage medium: the start scheduling time is a relative time relationship between the first scheduling period and the second scheduling period or The size of the time interval, where the first scheduling period is the scheduling period of the MBMS service in which the first service data packet of the MBMS service is transmitted and the network element of the access network is scheduled, and the second scheduling period is the DCI or MAC of the scheduled PDCCH.
  • the processor performs, according to the stored program code in the storage medium, after receiving the updated MCCH message, before receiving the service data of the MBMS service, the received indication information is one or more And wherein the indication information is sent in a multicast transmission channel MTCH scheduling period of one or more MBMS services.
  • the processor executes according to the stored program code in the storage medium: the MTCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single-cell multicast transmission channel SC- MTCH, MTCH in Multicast Broadcast Single Frequency Network MBSFN Technology.
  • the processor executes according to the stored program code in the storage medium: the MCCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single cell multicast control channel SC- MCCH, MCCH in multicast broadcast single frequency network MBSFN technology.
  • the processor performs: receiving, according to the stored program code in the storage medium, an indication message sent by the access network element, where the indication message carries the configuration in the subordinate cell of the access network element.
  • the multicast control channel MCCH modifies the period length and the timing information of the subordinate cell, and the timing information is used to indicate the time of the start point of at least one of the system frame number and the system superframe number of the subordinate cell, or is used to indicate the transmission timing information.
  • the processor performs, according to the stored program code in the storage medium, before sending the received MBMS session start request message to the access network element, further comprising: modifying the period length according to the MCCH, And determining, by the MBMS service start sending time, a time for sending the received MBMS service session start request message to the access network element, wherein the determined time causes the access network element to update the MCCH before the service data of the MBMS service starts to be sent.
  • the message that the updated MCCH message carries the scheduling information of the MBMS service.
  • the processor executes according to the stored program code in the storage medium.
  • the access network element is the eNB
  • the current network element that receives the indication message sent by the access network element is the core network element
  • the core network element is one of the following: the broadcast multicast service center BMSC, the mobility management entity. MME, Multicast Broadcast Coordination Entity MCE.
  • the processor executes according to the stored program code in the storage medium: the MCCH is one of the following: single cell point-to-multipoint transmission SC-PTM technology single cell multicast control channel SC- MCCH, MCCH in multicast broadcast single frequency network MBSFN technology.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they 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 thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the service data is received according to the start scheduling time of the access network element to start scheduling and sending the MBMS service session, thereby avoiding that the terminal starts to try to receive the MBMS service data too early, or starts to receive the MBMS service too late.
  • the data causes the problem that the service data cannot be completely received. Therefore, the problem that the UE cannot completely receive the MBMS service data packet when receiving the MBMS service data in the related art can be solved, and the effect of improving the MBMS service data reception efficiency is achieved.

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Abstract

本发明提供了一种业务会话发送、接收方法、装置、系统及存储介质，其中，该方法包括：确定接入网网元开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；根据确定的所述开始调度时间，接收所述MBMS业务会话对应的业务数据。通过本发明，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，进而达到了提高MBMS业务数据接收效率的效果。

Description

业务回话发送、接收方法、装置、系统及存储介质
相关申请的交叉引用
本申请基于申请号为201610865138.7、申请日为2016年09月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及通信领域，具体而言，涉及一种业务会话发送、接收方法、装置、系统及计算机可读存储介质。
背景技术
在第三代合作伙伴计划(3rd Generation partnership project，简称为3GPP)长期演进系统(Long-Term Evolution，简称为LTE)中，引入了单小区点到多点传输(Single Cell Point to Multipoint，简称为SC-PTM)技术。SC-PTM技术用于实现在单小区(a single cell)中传输点到多点的下行多媒体广播多播业务(Multimedia Broadcast and Multicast Service，简称为MBMS)。SC-PTM引入了两种逻辑信道，即单小区多播控制信道(Single Cell Multicast Control Channel，简称为SC-MCCH)和单小区多播传输信道(Single Cell Multicast Transmission Channel，简称为SC-MTCH)。在LTE中，SC-MCCH与SC-MTCH都通过物理下行共享信道(Physical Downlink Shared Channel，简称为PDSCH)承载。
SC-MCCH信道承载传输MBMS业务相关的控制信息，包括业务的标识、调度信息等。在LTE中，承载SC-MCCH的PDSCH为动态调度。具体的，在系统消息块20(System Information Block 20，简称为SIB20)中指示SC-MCCH信道的调度信息，包括修改周期、重复周期、偏移offset、第一个子帧first subframe、以及可能被调度的区间长度duration。这些参数 限定了SC-MCCH可能被调度的duration的区间，即演进型基站(evolved Node B，简称为eNB)在SC-MCCH可能被调度的duration区间中的某一个子帧中调度SC-MCCH。其中，图1是相关技术中LTE中SC-MCCH信道的调度方式示意图，如图1所示，SC-MCCH的修改周期指示了SC-MCCH消息可能被修改的边界，SC-MCCH重复周期为调度发送SC-MCCH消息的周期，offset是指所述duration起始无线帧相对SC-MCCH重复周期起始无线帧的偏移无线帧个数，first subframe为duration从其起始无线帧中第几个无线子帧开始。Duration的长度为duration持续的无线子帧的数量。eNB使用SC-RNTI对物理下行控制信道PDCCH中的DCI进行加扰。
一个SC-MTCH承载一个MBMS的业务数据。在LTE系统中，SC-MTCH的调度信息包括：调度周期以及起始偏移，可能被调度的duration时间区间长度OnDurationTimer，以及用户设备(User Equipment，简称为UE)在成功接收到一个下行数据后等待的时间长度(drxInactivityTimerSCPTM)。图2是相关技术中LTE中SC-MTCH信道的调度方式示意图，如图2所示，eNB在SC-MTCH调度信息指定的资源内的任意一个无线子帧内均可调度承载某个MBMS业务的SC-MTCH的PDSCH信道，UE在成功接收到的该业务的一个下行数据后，继续等待上述drxInactivityTimerSCPTM时间长度，直到该时间超时或接收到该业务的一个新的数据。eNB使用组无线网络临时标识(Group Radio Network Temporary Identifier，简称为G-RNTI)对调度SC-MTCH的PDCCH的DCI进行加扰，每个MBMS业务分配有单独的G-RNTI。
图3是相关技术中LTE中SC-TPM会话开始的过程示意图，如图3所示，在eNB接收到MBMS会话开始消息后，在无线接口更新SC-MCCH消息，指示MBMS会话的调度信息。UE接收到更新的SC-MCCH消息后，根据MBMS会话的调度信息在无线接口接收承载MBMS会话数据的SC-MTCH信道。
在窄带物联网(Narrow Band internet of things，简称为NB-IoT)和增强型机器类通信(enhanced Machine Type Communication，简称为eMTC)系统中实施SC-PTM业务，主要用于设备软件的更新，这种需求要求用户 设备(User Equipment，简称为UE)能完整的接收所有的业务数据包。另一方面，UE的省电也是至关重要的问题。
在相关技术中的MBMS业务会话开始时，UE并不知道一个MBMS业务开始的时间，即使UE从用户业务描述(User Service Description，简称为USD)中获得业务开始的时间(start time)，但因为无线接口调度和MCCH消息更新的延时等等原因，此开始时间并不能用于UE准确开始接收MBMS业务数据的依据。因此有可能出现UE过早的开始尝试接收MBMS业务数据，而没有必要的浪费了UE的电池能量的情况。
上述问题同样存在于以多播广播单频网络(Multicast Broadcast Single Frequency Network，简称为MBSFN)方式传输MBMS业务时。MBSFN和SC-PTM技术有类似的信道结构，在MBSFN技术中，多播控制信道为MCCH，多播传输信道为MTCH，分别对应SC-PTM技术中的SC-MCCH和SC-MTCH信道。MBSFN技术中的MCCH信道同样具有修改周期属性，而MTCH信道的调度也是以其调度周期为单位进行调度传输。
因此，相关技术中在接收MBMS业务数据时，存在UE不能完整接收MBMS业务数据包的问题。
发明内容
本发明实施例提供了一种业务会话发送、接收方法、装置、系统及计算机可读存储介质。
根据本发明的一个实施例，提供了一种业务会话接收方法包括：确定接入网网元开始调度发送MBMS业务会话的开始调度时间；根据确定的所述开始调度时间，接收所述MBMS业务会话对应的业务数据。
根据本发明的另一个实施例，提供了一种业务会话发送方法，包括：确定开始调度发送MBMS业务会话的开始调度时间；根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据。
根据本发明的又一个实施例，提供了一种业务会话发送方法，包括：接收MBMS会话开始请求消息，其中，所述MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信 息；根据所述MBMS会话开始请求消息中携带的所述时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
根据本发明的又一个实施例，提供了一种业务会话发送方法，包括：更新MCCH消息，其中，更新后的所述MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；在更新所述MCCH消息之后，开始调度所述MBMS业务的业务数据之前，通过物理下行控制信道(Pysical Downlink Control Channel，PDCCH)的下行控制信息(Downlink Control Information，简称为DCI)或者媒体接入控制(Media Access Control，简称为MAC)控制单元(Control Element，简称为CE)指示所述MBMS业务的业务数据的开始调度时间；根据所述开始调度时间，开始调度发送所述MBMS业务的所述业务数据。
根据本发明的又一个实施例，提供了一种业务会话接收方法，包括：接收更新的MCCH消息，其中，更新后的所述MCCH消息相对于更新前的所述MCCH消息增加MBMS业务的调度信息；在接收到更新的所述MCCH消息之后，接收通过PDCCH的DCI或者MAC CE发送的所述MBMS业务的指示信息，其中，所述指示信息用于指示所述MBMS业务的业务数据的开始调度时间；根据指示的所述开始调度时间，接收所述MBMS业务的所述业务数据。
根据本发明的又一个实施例，提供了一种业务会话发送方法，包括：接收接入网网元发送的指示消息，其中，所述指示消息携带有所述接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及所述下属小区的定时信息，所述定时信息用于指示所述下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送所述定时信息时所述下属小区的当前系统帧号和系统超帧号中至少之一；根据所述MCCH修改周期长度，所述定时信息，以及接收到的MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向所述接入网网元发送接收到的所述MBMS会话开始请求消息。
根据本发明的又一个实施例，提供了一种业务会话接收装置，包括：确定模块，配置为确定接入网网元开始调度发送多媒体广播多播业务 MBMS业务会话的开始调度时间；接收模块，配置为根据确定的所述开始调度时间，接收所述MBMS业务会话对应的业务数据。
根据本发明的又一个实施例，提供了一种业务会话发送装置，包括：确定模块，配置为确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；发送模块，配置为根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据。
根据本发明的又一个实施例，提供了一种业务会话发送装置，包括：接收模块，配置为接收多媒体广播多播业务MBMS会话开始请求消息，其中，所述MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；确定模块，配置为根据所述MBMS会话开始请求消息中携带的所述时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
根据本发明的又一个实施例，提供了一种业务会话发送装置，包括：更新模块，配置为更新MCCH消息，其中，更新后的所述MCCH消息中携带有MBMS业务的调度信息；指示模块，配置为在更新所述MCCH消息之后，开始调度所述MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE指示所述MBMS业务的业务数据的开始调度时间；发送模块，配置为根据所述开始调度时间，开始调度发送所述MBMS业务的所述业务数据。
根据本发明的又一个实施例，提供了一种业务会话接收装置，包括：第一接收模块，配置为接收更新的MCCH消息，其中，更新后的所述MCCH消息相对于更新前的所述MCCH消息增加MBMS业务的调度信息；第二接收模块，配置为在接收到更新的所述MCCH消息之后，接收通过PDCCH的DCI或者MAC CE发送的所述MBMS业务的指示信息，其中，所述指示信息配置为指示所述MBMS业务的业务数据的开始调度时间；第三接收模块，配置为根据指示的所述开始调度时间，接收所述MBMS业务的所述业务数据。
根据本发明的又一个实施例，提供了一种业务会话发送装置，包括：接收模块，配置为接收接入网网元发送的指示消息，其中，所述指示消息 携带有所述接入网网元的下属小区中配置的MCCH修改周期长度，以及所述下属小区的定时信息，所述定时信息用于指示所述下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送所述定时信息时所述下属小区的当前系统帧号和系统超帧号中至少之一；发送模块，配置为根据所述MCCH修改周期长度，所述定时信息，以及接收到的MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向所述接入网网元发送接收到的所述MBMS会话开始请求消息。
根据本发明的又一个实施例，提供了一种业务会话系统，包括接入网网元、终端，所述接入网网元包括：第一处理器和第一传输装置，所述终端包括：第二处理器和第二传输装置，其中，所述第一处理器，配置为确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；所述第一传输装置，配置为根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据；所述第二处理器，配置为确定所述接入网网元开始调度发送所述MBMS业务会话的开始调度时间；所述第二传输装置，配置为根据确定的所述开始调度时间，接收所述MBMS业务会话对应的所述业务数据。
根据本发明的又一个实施例，还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器上述任一业务会话接收方法的步骤，或者实现上述任一业务会话发送方法的步骤。
通过本发明实施例，由于根据接入网网元开始调度发送MBMS业务会话的开始调度时间来进行业务数据的接收，避免了由于终端过早开始尝试接收MBMS业务数据，或过晚开始接收MBMS业务数据导致不能完整的接收业务数据的问题，因此，可以解决相关技术中在接收MBMS业务数据时，存在UE不能完整接收MBMS业务数据包的问题，达到提高MBMS业务数据接收效率的效果。
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。在附图中：
图1是相关技术中LTE中SC-MCCH信道的调度方式示意图；
图2是相关技术中LTE中SC-MTCH信道的调度方式示意图；
图3是相关技术中LTE中SC-TPM会话开始的过程示意图；
图4是本发明实施例的一种业务会话接收方法的移动终端的硬件结构框图；
图5是根据本发明实施例的业务会话接收方法的流程图一；
图6是根据本发明实施例的业务会话发送方法的流程图一；
图7是根据本发明实施例的业务会话发送方法的流程图二；
图8是根据本发明实施例的业务会话发送方法的流程图三；
图9是根据本发明实施例的业务会话接收方法的流程图二；
图10是根据本发明实施例的业务会话发送方法的流程图四；
图11是根据本发明应用实施例的接入网网元的会话开始方式示意图一；
图12是根据本发明应用实施例的接入网网元的会话开始方式示意图二；
图13是根据本发明应用实施例的接入网网元的会话开始方式示意图三；
图14是根据本发明应用实施例的接入网网元的会话开始方式示意图四；
图15是根据本发明应用实施例中开始调度时间的示意图；
图16是根据本发明应用实施例中发送MBMS session start request消息时间的示意图；
图17是根据本发明实施例的业务会话接收装置的结构框图一；
图18是根据本发明实施例的业务会话接收装置的确定模块172的结构框图一；
图19是根据本发明实施例的业务会话接收装置的确定模块172的结构框图二；
图20是根据本发明实施例的业务会话接收装置的确定模块172的结构框图三；
图21是根据本发明实施例的业务会话发送装置的结构框图一；
图22是根据本发明实施例的业务会话发送装置的结构框图二；
图23是根据本发明实施例的业务会话发送装置的结构框图三；
图24是根据本发明实施例的业务会话发送装置的结构框图四；
图25是根据本发明实施例的业务会话发送装置的结构框图五；
图26是根据本发明实施例的业务会话接收装置的结构框图二；
图27是根据本发明实施例的业务会话发送装置的结构框图六；
图28是根据本发明实施例的业务会话发送装置的结构框图七；
图29是根据本发明实施例的业务会话系统的结构框图。
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。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
本申请实施例一所提供的方法实施例可以在移动终端、接入网网元、核心网网元、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图4是本发明实施例的一种业务会话接收方法的移动终端的硬件结构框图。如图4所示，移动终端40可以包括一个或多个(图中仅示出一个)处理器42(处理器42可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)、配置为存储数据的存储器44、以及配置为通信功能的传输装置46。本领域普通技术人员可以理解，图4所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，移动终端40还可包括比图4中所示更多或者更少的组件，或者具有与图4所示不同的配置。
存储器44可配置为存储应用软件的软件程序以及模块，如本发明实施例中的业务会话接收方法对应的程序指令/模块，处理器42通过运行存储在存储器44内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器44可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器44可进一步包括相对于处理器42远程设置的存储器，这些远程存储器可以通过网络连接至移动终端40。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置46配置为经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端40的通信供应商提供的无线网络。在一个实例中，传输装置46包括一个网络适配器(Network Interface Controller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置46可以为射频(Radio Frequency，简称为RF)模块，其配置为通过无线方式与互联网进行通讯。
在本实施例中提供了一种运行于上述移动终端的业务会话接收方法，图5是根据本发明实施例的业务会话接收方法的流程图一，如图5所示，该流程包括如下步骤：
步骤S502，确定接入网网元开始调度发送MBMS业务会话的开始调度时间；
步骤S504，根据确定的开始调度时间，接收MBMS业务会话对应的业务数据。
通过上述步骤，根据接入网网元开始调度发送MBMS业务会话的开始调度时间来进行业务数据的接收，解决了相关技术中在接收MBMS业务数据时，存在UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，可以通过协议约定，或者信令指定，确定接入网网元开始调度发送MBMS业务会话的开始调度时间。
可选地，可以采用如下方式确定接入网网元开始调度发送MBMS业务会话的开始调度时间：确定预设MCCH修改周期，其中，所述预设MCCH 修改周期用于所述接入网网元从该预设MCCH修改周期开始更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间。
可选地，可以通过协议约定，或者信令指定，确定接入网网元开始调度发送MBMS业务会话的开始调度时间：可以通过协议约定或者信令指定的方式，确定预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系。
可选地，可以采用多种方式确定该预设MCCH修改周期，例如，可以在接收到的MCCH消息中携带有与MBMS业务会话对应的调度信息后，判断是否接收到用于指示MCCH更新的更新通知；在判断结果为接收到更新通知的情况下，确定预设MCCH修改周期为接收到预设MCCH消息的MCCH修改周期，又例如，可以判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有与MBMS业务会话对应的调度信息；在判断结果为是的情况下，确定预设MCCH修改周期为至少两个连续的MCCH修改周期的最后一个MCCH修改周期。再例如，接收携带有更新时间的第一MCCH消息，其中，更新时间与预设MCCH修改周期的起始位置相对应；判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为更新时间，其中，第二MCCH消息中携带有与MBMS业务会话对应的调度信息；在判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置为更新时间的情况下，确定预设MCCH修改周期为接收到第二MCCH消息的MCCH修改周期。
可选地，根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间可以采用如下方式：根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第 N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，可以在前述判断结果为否的情况下(即，没有接收到更新通知、没有在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有调度信息或者接收到预设MCCH消息的MCCH修改周期的起始位置大于更新时间)，采用如下方式进行业务数据的接收：从接收到携带有MBMS业务会话的调度信息的MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据，也就是说，可以立即开始或者从当前时刻的下一个MCCH调度周期开始接收MBMS会话对应的业务数据。
可选地，前述MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，前述MTCH可以为以下之一：SC-PTM技术中的SC-MTCH，MBSFN技术中的MTCH。
在本实施例中还提供了一种运行于接入网网元的业务会话发送方法，图6是根据本发明实施例的业务会话发送方法的流程图一，如图6所示，该流程包括如下步骤：
步骤S602，确定开始调度发送MBMS业务会话的开始调度时间；
步骤S604，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据。
通过上述步骤，接入网网元确定开始调度发送MBMS业务会话的开始调度时间，并根据确定的开始调度时间进行业务数据的发送，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，可以通过如下方式确定开始调度发送MBMS业务会话的开始调度时间：确定开始更新与MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，可以通过协议约定，或者信令指定，确定开始调度发送MBMS业务会话的开始调度时间：可以通过协议约定或者信令指定的方式，确定预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系。
可选地，可以采用如下方式根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间：根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，在根据确定的开始调度时间，发送MBMS业务会话对应的业务数据之前，还可以更新多播控制信道MCCH消息，其中，MCCH消息中携带有与MBMS业务会话对应的调度信息，调度信息包括用于指示开始调度时间的时间信息。时间信息可以包括以下之一：系统超帧号和系统帧号，系统帧号，以时间单位表示的绝对时间值。
可选地，在时间信息包括系统超帧号和系统帧号或者系统帧号的情况下，可以采用如下方式根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据：在更新MCCH消息的无线帧之后的下一个以系统超帧号与系统帧号，或者系统帧号所表示的无线帧为启示位置的多媒体传 输信道MTCH调度周期，或者在更新MCCH消息的无线帧之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，在时间信息包括以时间单位表示的绝对时间值的情况下，可以采用如下方式根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据：在以绝对时间值代表的时刻开始的多媒体传输信道MTCH调度周期内，或者在绝对时间代表的时刻之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，上述MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，MBSFN技术中的MCCH。
可选地，上述MTCH可以为以下之一：SC-PTM技术中的SC-MTCH，MBSFN技术中的MTCH。
可选地，在确定开始调度发送MBMS业务会话的开始调度时间之前，还可以确定调度发送MBMS业务会话所使用的调度类型，其中，调度类型为调度发送MBMS业务会话所使用的预设类型；确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间可以包括：根据确定的调度类型，确定开始调度时间；在确定调度发送MBMS业务会话所使用的调度类型之后，还可以包括：向UE发送信令消息，其中，信令消息中携带有调度类型。
在本实施例中还提供了一种运行于接入网网元的业务会话发送方法，图7是根据本发明实施例的业务会话发送方法的流程图二，如图7所示，该流程包括如下步骤：
步骤S702，接收MBMS会话开始请求消息，其中，MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；
步骤S704，根据MBMS会话开始请求消息中携带的时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
通过上述步骤，接入网网元根据核心网网元开始发送业务数据的时间，确定开始调度发送MBMS业务数据的开始调度时间，保证了开始调度时间 确定的准确性，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，上述时间信息包括绝对时间和相对时间中至少之一，其中，绝对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间，相对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间与核心网网元发送MBMS会话开始请求消息的时间之间的相对时间。
可选地，MBMS会话开始请求消息可以是由核心网网元直接发送的，也可以是由其他接入网网元转发的。
在本实施例中还提供了一种运行于接入网网元的业务会话发送方法，图8是根据本发明实施例的业务会话发送方法的流程图三，如图8所示，该流程包括如下步骤：
步骤S802，更新MCCH消息，其中，更新后的MCCH消息中携带有MBMS业务的调度信息；
步骤S804，在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，通过PDCCH的DCI或者MAC CE指示MBMS业务的业务数据的开始调度时间；
步骤S806，根据开始调度时间，开始调度发送MBMS业务的业务数据。
通过上述步骤，接入网网元更新MCCH消息，更新的MCCH消息中增加该MBMS业务会话的调度信息，并通过PDCCH的DCI或者MAC CE指示MBMS业务数据的开始调度时间，保证了开始调度时间的准确性，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，可以使用G-RNTI对PDCCH的DCI进行加扰，其中，G-RNTI为用于调度承载MBMS业务的业务数据的RNTI。
可选地，MAC CE可以通过MAC PDU(Protocol Data Unit，简称为协议数据单元)承载，其中，指示承载MAC PDU的PDSCH的调度信息在使用MBMS业务的RNTI加扰的DCI中指示。
可选地，在更新MCCH消息之后(例如，更新MCCH消息的MCCH 修改周期的起始位置之后)，开始调度MBMS业务的业务数据之前，在一个或多个MBMS业务的MTCH调度周期中，指示MBMS业务的业务数据的开始调度时间。
可选地，开始调度时间可以为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，上述MTCH可以为以下之一：SC-PTM技术中的SC-MTCH，MBSFN技术中的MTCH。
可选地，上述MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，MBSFN技术中的MCCH。
在本实施例中还提供了一种业务会话发送方法，图9是根据本发明实施例的业务会话接收方法的流程图二，如图9所示，该流程包括如下步骤：
步骤S902，接收更新的MCCH消息，其中，更新后的MCCH消息相对于更新前的MCCH消息增加MBMS业务的调度信息；
步骤S904，在接收到更新的MCCH消息之后，接收通过PDCCH的DCI或者MAC CE发送的MBMS业务的指示信息，其中，指示信息用于指示MBMS业务的业务数据的开始调度时间；
步骤S906，根据指示的开始调度时间，接收MBMS业务的业务数据。
通过上述步骤，接收到携带有MBMS业务的调度信息的MCCH消息，已经用于指示核心网网元开始调度MBMS业务的业务数据的开始调度时间，根据指示的开始调度时间进行MBMS业务数据的接受，保证了开始调度时间的准确性，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，开始调度时间可以为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为和接入网网元调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的 调度周期。
可选地，在接收到更新的MCCH消息之后，接收到MBMS业务的业务数据之前，接收到的指示信息可以为一个或多个，其中，指示信息在一个或多个MBMS业务的多播传输信道MTCH调度周期内发送。
可选地，上述MTCH可以为以下之一：SC-PTM技术中的SC-MTCH，MBSFN技术中的MTCH。
可选地，上述MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，MBSFN技术中的MCCH。
在本实施例中还提供了一种业务会话发送方法，图10是根据本发明实施例的业务会话发送方法的流程图四，如图10所示，该流程包括如下步骤：
步骤S1002，接收接入网网元发送的指示消息，其中，指示消息携带有接入网网元的下属小区中配置的MCCH修改周期长度，以及下属小区的定时信息，定时信息用于指示下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送定时信息时下属小区的当前系统帧号和系统超帧号中至少之一；
步骤S1004，根据MCCH修改周期长度，定时信息，以及接收到的MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向接入网网元发送接收到的MBMS会话开始请求消息。
通过上述步骤，根据接入网元下属小区的MCCH修改周期长度、定时信息以及MBMS业务开始发送时间，向接入网网元发送接收到的MBMS会话开始请求消息，保证了开始调度时间的准确性，解决了相关技术中在接收MBMS业务数据时，存UE不能完整接收MBMS业务数据包的问题，提高了MBMS业务数据接收效率。
可选地，在步骤S904之前，还可以根据MCCH修改周期长度，以及MBMS业务开始发送时间，确定向接入网网元发送接收到的MBMS业务会话开始请求消息的时间，其中，确定的时间使得接入网网元在MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息。
可选地，接入网网元可以为eNB，接收接入网网元发送的指示消息的当前网元可以为核心网网元，核心网网元可以为以下之一：广播组播业务中心BMSC，移动性管理实体MME，多播广播协调实体MCE。
可选地，上述MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，MBSFN技术中的MCCH。
基于上述实施例及优选实施方式，为说明方案的整个流程交互，在本优选实施例中，提供了一种业务会话发送、接收方法(即，业务会话处理方法)，下面对该业务会话处理方法进行说明。
针对在NB-IoT和eMTC系统的特点，在本优选实施例中提供了一种业务会话处理方法，该业务会话处理方法适用于NB-IoT和eMTC中以SC-PTM或MBSFN技术传输MBMS业务会话时指示会话开始，尤其是准确地指示MBMS业务数据在无线接口开始调度的时间。
本优选实施例中提供的业务会话处理方法适用于MBSFN传输技术传输的MBMS业务会话，以及以SC-PTM技术传输的MBMS业务会话。MBSFN和SC-PTM的区别在于调度业务数据信道的方式不同，这并不影响本优选实施例的方法在两种传输技术下的具体技术方案和实施效果。
SC-PTM技术下的SC-MCCH信道和MBSFN技术中的MCCH信道可以统称为多播控制信道。SC-PTM技术中的SC-MTCH信道和MBSFN技术中的MTCH信道可以统称为多播传输信道。需要说明的是，为描述方便，本优选实施例中以SC-MCCH和SC-MTCH为例进行说明。
实例1：
接入网网元接收到指示MBMS业务会话(session)S开始的MBMS session start request消息(MBMS会话开始请求消息)后，在无线接口更新SC-MCCH消息，并在SC-MCCH消息中指示MBMS业务会话S的标识以及MBMS业务会话S的调度信息。
接入网网元从SC-MCCH修改周期MP0(作用同前述预设MCCH修改周期)开始更新SC-MCCH消息。接入网网元从特定时间开始调度发送该MBMS业务会话S。
接入网网元通过信令指示或协议约定接收或尝试接收MBMS业务会话S的特定时间(作用同前述开始调度时间)。需要接收MBMS业务会话S的UE从特定时间开始接收或尝试接收承载MBMS业务会话S的SC-MTCH信道。
接入网网元从特定时间开始调度MBMS业务会话S包括以下方法：
会话开始方法1：接入网网元从MP0之后的第N1个SC-MCCH修改周期起始位置之后的第N2个SC-MTCH调度周期开始调度发送MBMS业务会话S的数据。
图11是根据本发明应用实施例的接入网网元的会话开始方式示意图一，如图11所示，接入网网元在SC-MCCH修改周期MP0中更新SC-MCCH消息，增加指示MBMS业务会话S的标识和调度信息。
接入网在MP0之后的第N1个SC-MCCH修改周期的起始位置之后的第N2个SC-MTCH调度周期开始调度MBMS业务会话S的业务数据。
可选地，上述N1和N2中至少之一在SC-MCCH消息或系统消息中指示。
可选地，上述N1和N2中至少之一通过协议约定。此时，N1优选取值为1，N2的优选取值为1，即接入网在MP0之后的第一个SC-MCCH修改周期起始位置之后的第一个SC-MTCH开始调度发送MBMS业务会话S的业务数据。
上述SC-MCCH修改周期的配置信息，包括SC-MCCH修改周期的长度，在系统消息中指示。
会话开始方法2：接入网网元从MP0结束位置或开始位置之后的第N3个无线帧开始的SC-MTCH调度周期，或在第N3个无线帧之后的第一个SC-MTCH调度周期开始调度发送MBMS业务会话S的业务数据。
图12是根据本发明应用实施例的接入网网元的会话开始方式示意图二，如图12所示，接入网网元在SC-MCCH修改周期MP0中更新SC-MCCH消息，增加指示MBMS业务会话S的标识和调度信息。
接入网在MP0结束位置或开始位置之后的第N3个无线帧开始的 SC-MTCH调度周期，或在第N3个无线帧之后的第一个SC-MTCH调度周期开始调度发送MBMS业务会话S的业务数据。
上述N3个无线帧也可以表示为一个时间值，例如N3秒，此时接入网在MP0结束位置或开始位置之后的第N3秒开始的SC-MTCH调度周期，或在第N3秒之后的第一个SC-MTCH调度周期开始发送MBMS业务会话S的业务数据。
可选地，上述N3在SC-MCCH消息或系统消息中指示。
可选地，上述N3通过协议约定。
会话开始方法3：接入网网元从MP0之后的第N4个满足系统超帧号(H-SFN)对M取模为0的时刻开始的第N5个SC-MTCH调度周期开始调度发送MBMS业务会话S的业务数据。
图13是根据本发明优选实施例的接入网网元的会话开始方式示意图三，如图13所示，接入网网元在SC-MCCH修改周期MP0中更新SC-MCCH消息，增加指示MBMS业务会话S的标识以及调度信息。
接入网在MP0之后的第N4个满足H-SFN mod M＝0的时刻之后的第N5个SC-MTCH调度周期开始调度发送会话S的数据。
可选地，上述N4取值为1，N5取值为1，M取值为1024，即在MP0之后的第一个满足H-SFN mod 1024＝0时刻之后的第一个SC-MTCH调度开始调度发送MBMS业务会话S的业务数据。
上述N4、N5与M分别通过协议约定，或SC-MCCH消息或系统消息指示。
会话开始方法4：接入网网元在包含MBMS业务会话S的调度信息的SC-MCCH消息中，指示开始发送MBMS业务会话数据的时间值。
上述时间值的形式包括：H-SFN和系统帧号SFN，或SFN，或以时间单位表示的绝对时间。
图14是根据本发明应用实施例的接入网网元的会话开始方式示意图四，如图14所示，当上述时间值为H-SFN和SFN时，接入网网元在下一个H-SFN与SFN，或SFN所表示的无线帧为起始位置的SC-MTCH调度周 期，或在此无线帧之后的第一个SC-MTCH调度周期内，开始调度发送MBMS业务会话S的业务数据。
当上述时间值为绝对时间时，接入网在此绝对时间值代表的时刻开始的SC-MTCH调度周期，或此绝对时间值代表的时刻之后的第一个SC-MTCH调度周期内开始调度发送MBMS业务会话S的业务数据。
可选地，接入网网元可以通过信令指示UE MBMS业务会话开始所使用的方法类型(作用同前述调度类型)，接入网网元以指示的业务会话开始的方法类型进行MBMS业务会话的开始过程，UE以指示的业务会话开始的方法类型获得开始接收或尝试接收MBMS业务会话的特定时间。
实例2：
接入网网元根据上述实例中提供的方式的一种或多种的组合标识MP0，UE根据如下的方法的一种或多种的组合获知上述MP0的位置。
确定MP0的方法1：接入网网元在上述MP0中调度发送SC-MCCH消息前，在MP0中通过物理下行控制信道(physical Downlink Control Channel，简称为PDCCH)信令数据通信接口(Data Communication Interface，简称为DCI)，或在MP0中调度SC-MCCH消息的PDCCH信令DCI中，指示SC-MCCH的变更通知(change notification)。
UE在接收到上述change notification，且在MP0中接收到的SC-MCCH消息中(作用同前述预设MCCH消息)接收到其需要接收的MBMS业务会话的调度信息，则认为该SC-MCCH修改周期为其所需接收的MBMS业务会话相对应的MP0。
如果UE接收到包含有所需接收的MBMS业务会话调度信息的SC-MCCH消息，而没有检测到上述SC-MCCH消息变更通知，则UE立刻开始或从当前时刻的下一个SC-MTCH调度周期开始接收MBMS业务会话S的业务数据。
确定MP0的方法2：UE在多个连续的SC-MCCH周期内接收SC-MCCH消息，当检测到某个SC-MCCH修改周期内的SC-MCCH消息中开始指示所需的MBMS业务会话的调度信息时，则认为该SC-MCCH修改周期为 MBMS业务会话相应的MP0。
例如，UE在两个连续的SC-MCCH修改周期MP1，MP2中接收SC-MCCH消息，UE如果在MP1中没有发现所需接收的MBMS业务会话的调度信息，而在MP2中发现所需接收的MBMS业务会话的调度信息，则UE认为MP2为所需接收的MBMS业务会话对应的MP0。
如果UE接收到包含有所需接收的MBMS业务会话调度信息的SC-MCCH消息，且在此之前的一个SC-MCCH修改周期中，UE并没有接收到不包含所需接收的MBMS业务会话调度信息的SC-MCCH消息，或没有接收到任何SC-MCCH消息，则UE立刻开始或从当前时刻的下一个SC-MTCH调度周期开始接收该MBMS业务会话S的业务数据。
确定MP0的方法3：接入网网元在SC-MCCH消息中，指示MBMS业务会话的调度信息的更新时间。更新时间的形式包括：绝对的时间值，或SC-MCCH修改周期起始位置的H-SFN和SFN中至少之一。
该更新时间为SC-MCCH修改周期的起始位置对应的时间。
UE接收到包含所需接收的的MBMS业务会话的调度信息时，如果所接收到该调度信息的SC-MCCH修改周期的起始位置为上述更新时间，则UE认为该SC-MCCH修改周期为所需接收的MBMS业务会话的MP0。
如果UE接收到包含有所需接收的MBMS业务会话调度信息的SC-MCCH消息的SC-MCCH修改周期的起始时间大于SC-MCCH消息中指示的MBMS业务会话的调度信息更新时间，则UE立刻开始或从当前时刻的下一个SC-MTCH调度周期开始接收该MBMS业务会话S的数据。
在实例中，UE根据接入网网元开始调度发送MBMS业务会话的时间开始接收该MBMS业务会话的业务数据。
在实例中，在某个SC-MTCH调度周期开始调度发送MBMS业务会话的数据，是指在该SC-MTCH调度周期内可以用于调度SC-MTCH的某个无线子帧开始发送调度MBMS业务会话数据的下行控调度信息。
在实例中，SC-MCCH消息是指SC-MCCH配置消息，该消息的功能包括指示通过单小区点到多点(SC-PTM)方式发送的MBMS业务会话的标 识和调度信息。
在实例中，系统消息，包括现有协议中的SIB20，或SIB15，或新定义的系统信息块。
在实例中，SC-MTCH信道，是特指承载实例中的MBMS业务会话S的业务数据的SC-MTCH信道。
实例3：
本实例所提供的业务会话处理方式，用于接入网网元确定开始调度MBMS业务会话的特定时间：
接入网网元2接收到MBMS session start request消息中，携带核心网网元开始发送业务数据的时间信息，此时间信息包括核心网网元开始发送业务数据的绝对时间T1，或相对MBMS session start request消息后，核心网网元开始发送业务数据的相对信息(作用同前述相对时间)。
接入网网元2根据其接收到的核心网网元开始发送业务数据的时间信息，在发送给接入网网元1的MBMS session start request消息中，同样指示核心网开始发送业务数据的时间信息。
接入网网元1根据接收到的核心网网元开始发送业务数据的时间信息，确定前述开始调度MBMS业务会话的特定时间。
实例4：
接入网网元通过PDCCH信令DCI或MAC CE指示一个MBMS业务数据的开始调度时间。该接入网网元对PDCCH信令DCI使用G-RNTI进行加扰，该G-RNTI为用于调度承载该MBMS业务数据的RNTI。该接入网网元在MBMS业务的调度周期内调度发送该PDCCH信令DCI。
MAC CE通过MAC PDU承载，接入网网元在MBMS业务的调度周期内调度发送。在调度发送该MAC PDU时，接入网使用用于调度MBMS业务数据的RNTI加扰的DCI指示其调度信息，即该MBMS业务的G-RNTI加扰的DCI指示承载该MAC PDU的PDSCH信道的调度信息。
接入网网元在更新SC-MCCH消息以指示MBMS业务的调度信息的SC-MCCH调度周期开始，或在此SC-MCCH修改周期之后的SC-MCCH修 改周期开始，至实际开始调度发送该MBMS业务的数据之前，执行上述的指示方式。
可选地，接入网网元在MBMS业务的满足上述条件的所有SC-MTCH调度周期内至少调度发送一次使用PDCCH信令DCI或MAC CE，以指示MBMS业务的开始调度时间。
接入网指示的上述开始调度时间，为SP0与SP1之间的相对时间关系，或者时间间隔的大小，其中，SP0为接入网开始调度发送该MBMS业务的第一个业务数据包的MBMS业务的调度周期，SP1调度发送PDCCH信令DCI或MAC CE所在的MBMS业务的调度周期。上述时间间隔的大小为上述SP1与SP0的起始位置之间的时间间隔大小，其单位可以包括以下至少之一：SFN的个数、H-SFN的个数、H-SFN与SFN的个数、MBMS业务调度周期长度的个数。
下面举例进行说明，接入网网元eNB在SC-MCCH修改周期MP0中更新SC-MCCH消息，在SC-MCCH消息中增加MBMS业务S的调度信息。
接入网网元eNB从上述SC-MCCH修改周期MP0的起始位置开始，到开始调度该MBMS业务S的业务数据之前，在该MBMS业务S的每个SC-MTCH调度周期中，指示MBMS业务S的开始调度时间。
该开始调度时间形式为：调度上述指示MBMS业务开始调度时间的DCI或MAC CE的SC-MTCH调度周期的起始位置，与开始调度MBMS业务的业务数据的SC-MTCH调度周期的起始位置之间的时间间隔。
显然，在不同的SC-MTCH调度周期中调度发送的MBMS业务开始调度时间相互之间并不相同。例如，如图15所示，在SC-MTCH调度周期SP1中指示开始调度时间为SP1的起始位置与开始调度发送MBMS业务的SC-MTCH调度周期之间的时间距离，而SC-MTCH调度周期SP2中指示的开始调度时间为SP2的起始位置与开始调度发送MBMS业务的SC-MTCH调度周期之间的时间距离。
实例5：
第二网元接收第一接入网网元指示其下属小区中所配置的SC-MCCH 修改周期的长度，以及下属小区的定时信息。
该下属小区的定时信息用于指示下属小区的SFN和H-SFN号中至少之一的起点的时间，即下一个/上一个H-SFN＝0和SFN＝0中至少之一的绝对时间，或下一个/上一个H-SFN＝0和SFN＝0中至少之一相对发送上述定时信息时的时间间隔。
或者，上述下属小区的定时信息是指发送上述定时信息时，该下属小区的当前的SFN和H-SFN号中至少之一。
第二网元根据该下属小区的SC-MCCH修改周期长度、下属小区的定时信息、以及接收到的MBMS Session start request消息中指示的MBMS业务开始发送时间，向第一接入网网元发送接收到的MBMS session start request消息。
可选地，第二网元发送接收到的MBMS session start request消息的时间，使得第一接入网网元在该MBMS业务的数据开始发送之前，在无线接口更新完SC-MCCH消息。例如，如图16所示，第二网元在T0时刻发送该MBMS session start requet消息，确保第一接入网网元在T1时刻收到，并能在此时刻的下一个SC-MCCH修改周期中更新SC-MCCH消息，以指示该MBMS业务的调度信息。而MBMS业务开始发送的时刻为T2，T2位于上述SC-MCCH修改周期之后。
第一接入网网元可以为eNB，第二网元可以为核心网网元BMSC、MME或者MCE。
通过本发明优选实施例的上述技术方案，接入网网元得以指示需要接收某个MBMS业务会话的UE在特定的时间开始接收MBMS业务会话的数据，避免了UE过早开始尝试接收MBMS业务数据，或UE过晚的开始接收该MBMS业务数据而导致不能完整的接收。达到了节省UE耗电，并避免UE不能完整接收的可能性。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软 件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例的方法。
实施例2
在本实施例中提供了一种业务会话接收装置，该装置配置为实现上述实施例及应用实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和硬件中至少之一的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图17是根据本发明实施例的业务会话接收装置的结构框图一，如图17所示，该装置包括：
确定模块172，配置为确定接入网网元开始调度发送MBMS业务会话的开始调度时间；
接收模块174，连接至上述确定模块172，配置为根据确定的开始调度时间，接收MBMS业务会话对应的业务数据。
可选地，确定模块172，还配置为确定预设多播控制信道MCCH修改周期，其中，接入网网元从预设MCCH修改周期开始更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间。
图18是根据本发明实施例的业务会话接收装置的确定模块172的结构框图一，如图18所示，该确定模块172包括：
第一判断单元182，配置为判断接收到的MCCH消息中是否携带有与MBMS业务会话对应的调度信息；
第二判断单元184，连接至上述第一判断单元182，配置为在第一判断单元的判断结果为携带有与MBMS业务会话对应的调度信息的情况下，判 断是否接收到配置为指示MCCH更新的更新通知；
第一确定单元186，连接至上述第二判断单元184，配置为在第二判断单元的判断结果为接收到更新通知的情况下，确定预设MCCH修改周期为：接收到携带有调度信息的MCCH消息的MCCH修改周期。
可选地，接收模块174，还可以配置为在第二判断单元184的判断结果为没有接收到更新通知的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
图19是根据本发明实施例的业务会话接收装置的确定模块172的结构框图二，如图19所示，该确定模块172包括：
第三判断单元192，配置为判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有与MBMS业务会话对应的调度信息；
第二确定单元194，连接至上述第三判断单元192，配置为在第三判断单元的判断结果为是的情况下，确定预设MCCH修改周期为至少两个连续的MCCH修改周期的最后一个MCCH修改周期。
可选地，接收模块174，还可以配置为在第三判断单元192的判断结果为否的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
图20是根据本发明实施例的业务会话接收装置的确定模块172的结构框图三，如图20所示，该确定模块172包括：第四判断单元202和第三确定单元204，下面对确定模块172进行说明。
接收模块174，还配置为接收携带有更新时间的第一MCCH消息，其中，更新时间与预设MCCH修改周期的起始位置相对应；
第四判断单元202，配置为判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为更新时间，其中，第二MCCH消息中携带有与MBMS业务会话对应的调度信息；第三确定单元204，连接至上述第四判断单元 202，配置为在第四判断单元202的判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置为更新时间的情况下，确定预设MCCH修改周期为接收到第二MCCH消息的MCCH修改周期。
可选地，接收模块174，还可以配置为在第四判断单元202的判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置大于更新时间的情况下，从接收到第二MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，确定模块172，还可以配置为根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个MTCH调度周期，其中，N4，N5以及M为正整数。
在本实施例中还提供了一种业务会话发送装置，图21是根据本发明实施例的业务会话发送装置的结构框图一，如图21所示，该装置包括：
确定模块212，配置为确定开始调度发送MBMS业务会话的开始调度时间；
发送模块214，连接至上述确定模块212，配置为根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据。
可选地，确定模块212，还可以配置为确定开始更新与MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，确定模块212，还可以配置为根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度 周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
图22是根据本发明实施例的业务会话发送装置的结构框图二，如图22所示，该装置除包括图21所示的所有模块外，还包括：
更新模块222，配置为更新多播控制信道MCCH消息，其中，MCCH消息中携带有与MBMS业务会话对应的调度信息，调度信息包括用于指示开始调度时间的时间信息。
可选地，该时间信息可以包括以下之一：系统超帧号和系统帧号，系统帧号，以时间单位表示的绝对时间值。
可选地，发送模块214，还可以配置为在时间信息包括系统超帧号和系统帧号或者系统帧号的情况下，在更新MCCH消息的无线帧之后的下一个以系统超帧号与系统帧号，或者系统帧号所表示的无线帧为启示位置的多媒体传输信道MTCH调度周期，或者在更新MCCH消息的无线帧之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，发送模块212，还可以配置为在时间信息包括以时间单位表示的绝对时间值的情况下，在以绝对时间值代表的时刻开始的多媒体传输信道MTCH调度周期内，或者在绝对时间代表的时刻之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，确定模块212，还可以配置为在确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间之前，确定调度发送MBMS业务会话所使用的调度类型，其中，调度类型为调度发送MBMS业务会话所使用的预设类型；根据确定的调度类型，确定开始调度时间；发送模块174，还可以配置为在确定调度发送MBMS业务会话所使用的调度类型之后，向用户设备UE发送信令消息，其中，信令消息中携带有调度类型。
在本实施例中还提供了一种业务会话发送装置，图23是根据本发明实施例的业务会话发送装置的结构框图三，如图23所示，该装置包括：
接收模块232，配置为接收多媒体广播多播业务MBMS会话开始请求消息，其中，MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；
确定模块234，连接至上述接收模块232，配置为根据MBMS会话开始请求消息中携带的时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，上述时间信息可以包括绝对时间和相对时间中至少之一，其中，绝对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间，相对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间与核心网网元发送MBMS会话开始请求消息的时间之间的相对时间。
可选地，上述MBMS会话开始请求消息由核心网网元或接入网网元发送。
在本实施例中还提供了一种业务会话发送装置，图24是根据本发明实施例的业务会话发送装置的结构框图四，如图24所示，该装置包括：
更新模块242，配置为更新多播控制信道MCCH消息，其中，更新后的MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；
指示模块244，连接至上述更新模块242，配置为在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE指示MBMS业务的业务数据的开始调度时间；
发送模块246，连接至上述指示模块244，配置为根据开始调度时间，开始调度发送MBMS业务的业务数据。
图25是根据本发明实施例的业务会话发送装置的结构框图五，如图24所示，该装置除包括图24所示的所有模块外，还包括：
加扰模块252，配置为使用组无线网络临时标识G-RNTI对PDCCH的DCI进行加扰，其中，G-RNTI为用于调度承载MBMS业务的业务数据的无线网络临时标识RNTI。
可选地，指示模块234，还可以配置为在更新MCCH消息之后，开始 调度MBMS业务的业务数据之前，在一个或者多个MBMS业务的多播传输信道MTCH调度周期中，指示MBMS业务的业务数据的开始调度时间。
图26是根据本发明实施例的业务会话接收装置的结构框图二，如图26所示，该装置包括：
第一接收模块262，配置为接收更新的MCCH消息，其中，更新后的MCCH消息相对于更新前的MCCH消息增加MBMS业务的调度信息；
第二接收模块264，连接至第一接收模块262，配置为在接收到更新的MCCH消息之后，接收通过PDCCH的DCI或者MAC CE发送的MBMS业务的指示信息，其中，指示信息用于指示MBMS业务的业务数据的开始调度时间；
第三接收模块266，连接至第二接收模块264，配置为根据指示的开始调度时间，接收MBMS业务的业务数据。
可选地，开始调度时间可以为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为和接入网网元调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，第二接收模块264，还可以配置为在接收到更新的MCCH消息之后，接收到MBMS业务的业务数据之前，接收一个或多个指示信息，其中，指示信息在一个或多个MBMS业务的MTCH调度周期内发送。
在本实施例中还提供了一种业务会话发送装置，图27是根据本发明实施例的业务会话发送装置的结构框图六，如图27所示，该装置包括：
接收模块272，配置为接收接入网网元发送的指示消息，其中，指示消息携带有接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及下属小区的定时信息，定时信息用于指示下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送定时信息时下属小区的当前系统帧号和系统超帧号中至少之一；
发送模块274，连接至上述接收模块272，配置为根据MCCH修改周 期长度，定时信息，以及接收到的多媒体广播多播业务MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向接入网网元发送接收到的MBMS会话开始请求消息。
图28是根据本发明实施例的业务会话发送装置的结构框图七，如图28所示，该装置除包括图27所示的所有模块外，还包括：
确定模块282，配置为根据MCCH修改周期长度，以及MBMS业务开始发送时间，确定向接入网网元发送接收到的MBMS业务会话开始请求消息的时间，其中，确定的时间使得接入网网元在MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息。
可选地，本实施上述各装置中的MCCH可以为以下之一：SC-PTM技术中的SC-MCCH，MBSFN技术中的MCCH。MTCH可以为以下之一：SC-PTM技术中的SC-MTCH，MBSFN技术中的MTCH。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
在本实施例中提供了一种业务会话系统，图29是根据本发明实施例的业务会话系统的结构框图，如图29所示，该业务会话系统包括：接入网网元292和终端294，接入网网元292包括：第一处理器2922和第一传输装置2924，终端294包括：第二处理器2942和第二传输装置2944，其中，
第一处理器2922，配置为确定开始调度发送MBMS业务会话的开始调度时间；
第一传输装置2924，连接至上述第一处理器2922，配置为根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据；
第二处理器2942，配置为确定接入网网元开始调度发送MBMS业务会话的开始调度时间；
第二传输装置2944，连接至上述第二处理器2942，配置为根据确定的 开始调度时间，接收MBMS业务会话对应的业务数据。
可选地，第一处理器2922，还可以配置为根据协议约定或信令指定，确定开始调度时间；第二处理器2942，还可以配置为根据协议约定或信令指定，确定开始调度时间。
可选地，第一处理器2922，还配置为接收MBMS会话开始请求消息，其中，MBMS会话开始请求消息中携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；根据MBMS会话开始请求消息中携带的时间信息，确定开始调度时间。
实施例4
本发明的实施例提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，确定接入网网元开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
S2，根据确定的开始调度时间，接收MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
确定接入网网元开始调度发送MBMS业务会话的开始调度时间包括：
S1，确定预设MCCH修改周期，其中，所述预设MCCH修改周期用于接入网网元从预设MCCH修改周期开始更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息；
S2，根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
确定预设MCCH修改周期包括：
S1，判断接收到的MCCH消息中是否携带有与MBMS业务会话对应的调度信息；
S2，在判断结果为携带有与MBMS业务会话对应的调度信息的情况下， 判断是否接收到用于指示MCCH更新的更新通知；
S3，在判断结果为接收到更新通知的情况下，确定预设MCCH修改周期为：接收到携带有调度信息的MCCH消息的MCCH修改周期。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在判断是否接收到用于指示MCCH更新的更新通知之后，还包括：
在判断结果为没有接收到更新通知的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
确定预设MCCH修改周期包括：
S1，判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有与MBMS业务会话对应的调度信息；
S2，在判断结果为是的情况下，确定预设MCCH修改周期为至少两个连续的MCCH修改周期的最后一个MCCH修改周期。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有调度信息之后，还包括：
在判断结果为否的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
确定预设MCCH修改周期包括：
S1，接收携带有更新时间的第一MCCH消息，其中，更新时间与预设MCCH修改周期的起始位置相对应；
S2，判断接收到第二MCCH消息的MCCH修改周期的起始位置是否 为更新时间，其中，第二MCCH消息中携带有与MBMS业务会话对应的调度信息；
S3，在判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置为更新时间的情况下，确定预设MCCH修改周期为接收到第二MCCH消息的MCCH修改周期。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为更新时间之后，还包括：
在判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置大于更新时间的情况下，从接收到第二MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间包括：
S1，根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
本发明的实施例中还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
S2，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
确定开始调度发送MBMS业务会话的开始调度时间包括：
S1，确定开始更新与MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；
S2，根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间包括：
S1，根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在根据确定的开始调度时间，发送MBMS业务会话对应的业务数据之前，还包括：
S1，更新多播控制信道MCCH消息，其中，MCCH消息中携带有与MBMS业务会话对应的调度信息，调度信息包括用于指示开始调度时间的时间信息。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：时间信息包括以下之一：系统超帧号和系统帧号，系统帧号，以时间单位表示的绝对时间值。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在时间信息包括系统超帧号和系统帧号或者系统帧号的情况下，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据包括：
S1，在更新MCCH消息的无线帧之后的下一个以系统超帧号与系统帧号，或者系统帧号所表示的无线帧为启示位置的多媒体传输信道MTCH调度周期，或者在更新MCCH消息的无线帧之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在时间信息包括以时间单位表示的绝对时间值的情况下，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据包括：
S1，在以绝对时间值代表的时刻开始的多媒体传输信道MTCH调度周期内，或者在绝对时间代表的时刻之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
S1，在确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间之前，还包括：确定调度发送MBMS业务会话所使用的调度类型，其中，调度类型为调度发送MBMS业务会话所使用的预设类型；
S2，确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间包括：根据确定的调度类型，确定开始调度时间；
S3，在确定调度发送MBMS业务会话所使用的调度类型之后，还包括：向用户设备UE发送信令消息，其中，信令消息中携带有调度类型。
本发明的实施例提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，接收多媒体广播多播业务MBMS会话开始请求消息，其中，MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；
S2，根据MBMS会话开始请求消息中携带的时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：时间信息包括绝对时间和相对时间中至少之一，其中，绝对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间，相对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间与核心网网元发送MBMS会话开始请求消息的时间之间的相对时间。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MBMS会话开始请求消息由核心网网元或接入网网元发送。
本发明的实施例中还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，更新多播控制信道MCCH消息，其中，更新后的MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；
S2，在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制 MAC控制单元CE指示MBMS业务的业务数据的开始调度时间；
S3，根据开始调度时间，开始调度发送MBMS业务的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在通过PDCCH的DCI指示MBMS业务的业务数据的开始调度时间之前，还包括：
使用组无线网络临时标识G-RNTI对PDCCH的DCI进行加扰，其中，G-RNTI为用于调度承载MBMS业务的业务数据的无线网络临时标识RNTI。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在通过MAC CE指示MBMS业务的业务数据的开始调度时间的情况下，MAC CE通过MAC协议数据单元PDU承载，其中，指示承载MAC协议数据单元PDU的物理下行共享信道PDSCH的调度信息在使用MBMS业务的无线网络临时标示RNTI加扰的DCI中指示。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
通过PDCCH的DCI或者MAC CE指示MBMS业务的业务数据的开始调度时间包括：
在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，在一个或多个MBMS业务的多播传输信道MTCH调度周期中，指示MBMS业务的业务数据的开始调度时间。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码： MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
本发明的实施例中还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，接收更新的多播控制信道MCCH消息，其中，更新后的MCCH消息相对于更新前的MCCH消息增加多媒体广播多播业务MBMS业务的调度信息；
S2，在接收到更新的MCCH消息之后，接收通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE发送的MBMS业务的指示信息，其中，指示信息用于指示MBMS业务的业务数据的开始调度时间；
S3，根据指示的开始调度时间，接收MBMS业务的业务数据。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为和接入网网元调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：在接收到更新的MCCH消息之后，接收到MBMS业务的业务数据之前，接收到的指示信息为一个或多个，其中，指示信息在一个或多个MBMS业务的多播传输信道MTCH调度周期内发送。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
本发明的实施例中还提供了一种存储介质。可选地，在本实施例中， 上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，接收接入网网元发送的指示消息，其中，指示消息携带有接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及下属小区的定时信息，定时信息用于指示下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送定时信息时下属小区的当前系统帧号和系统超帧号中至少之一；
S2，根据MCCH修改周期长度，定时信息，以及接收到的多媒体广播多播业务MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向接入网网元发送接收到的MBMS会话开始请求消息。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
在向接入网网元发送接收到的MBMS会话开始请求消息之前，还包括：
根据MCCH修改周期长度，以及MBMS业务开始发送时间，确定向接入网网元发送接收到的MBMS业务会话开始请求消息的时间，其中，确定的时间使得接入网网元在MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：接入网网元为eNB，接收接入网网元发送的指示消息的当前网元为核心网网元，核心网网元为以下之一：广播组播业务中心BMSC，移动性管理实体MME，多播广播协调实体MCE。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，在本实施例中，上述存储介质是计算机可读存储介质，可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定接入网网元开始调度发送多媒体广播多播业务MBMS业务会话的 开始调度时间；根据确定的开始调度时间，接收MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定接入网网元开始调度发送MBMS业务会话的开始调度时间包括：确定预设多播控制信道MCCH修改周期，其中，接入网网元从预设MCCH修改周期开始更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定预设MCCH修改周期包括：判断接收到的MCCH消息中是否携带有与MBMS业务会话对应的调度信息；在判断结果为携带有与MBMS业务会话对应的调度信息的情况下，判断是否接收到用于指示MCCH更新的更新通知；在判断结果为接收到更新通知的情况下，确定预设MCCH修改周期为：接收到携带有调度信息的MCCH消息的MCCH修改周期。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在判断是否接收到用于指示MCCH更新的更新通知之后，还包括：在判断结果为没有接收到更新通知的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定预设MCCH修改周期包括：判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有与MBMS业务会话对应的调度信息；在判断结果为是的情况下，确定预设MCCH修改周期为至少两个连续的MCCH修改周期的最后一个MCCH修改周期。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收 到的MCCH消息中携带有调度信息之后，还包括：在判断结果为否的情况下，从接收到预设MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定预设MCCH修改周期包括：接收携带有更新时间的第一MCCH消息，其中，更新时间与预设MCCH修改周期的起始位置相对应；判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为更新时间，其中，第二MCCH消息中携带有与MBMS业务会话对应的调度信息；在判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置为更新时间的情况下，确定预设MCCH修改周期为接收到第二MCCH消息的MCCH修改周期。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为更新时间之后，还包括：在判断结果为接收到第二MCCH消息的MCCH修改周期的起始位置大于更新时间的情况下，从接收到第二MCCH消息的当前调度周期或者从当前调度周期的下一个MTCH调度周期开始接收MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定接入网网元开始调度发送MBMS业务会话的开始调度时间包括：根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：确定开始调度发送MBMS业务会话的开始调度时间包括：确定开始更新与MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：根据确定的预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送MBMS业务会话的开始调度时间包括：根据确定的预设MCCH修改周期，确定开始调度时间为以下至少之一：预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，N1，N2为正整数；MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，N3为正整数；预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，N4，N5以及M为正整数。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在根据确定的开始调度时间，发送MBMS业务会话对应的业务数据之 前，还包括：更新多播控制信道MCCH消息，其中，MCCH消息中携带有与MBMS业务会话对应的调度信息，调度信息包括用于指示开始调度时间的时间信息。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：时间信息包括以下之一：系统超帧号和系统帧号，系统帧号，以时间单位表示的绝对时间值。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在时间信息包括系统超帧号和系统帧号或者系统帧号的情况下，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据包括：在更新MCCH消息的无线帧之后的下一个以系统超帧号与系统帧号，或者系统帧号所表示的无线帧为启示位置的多媒体传输信道MTCH调度周期，或者在更新MCCH消息的无线帧之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在时间信息包括以时间单位表示的绝对时间值的情况下，根据确定的开始调度时间，开始调度发送MBMS业务会话对应的业务数据包括：在以绝对时间值代表的时刻开始的多媒体传输信道MTCH调度周期内，或者在绝对时间代表的时刻之后的第一个MTCH调度周期内，开始调度发送MBMS业务会话对应的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间之前，还包括：确定调度发送MBMS业务会话所使用的调度类型，其中，调度类型为调度发送MBMS业务会话所使用的预设类型；确定开始调 度发送多媒体广播多播业务MBMS业务会话的开始调度时间包括：根据确定的调度类型，确定开始调度时间；在确定调度发送MBMS业务会话所使用的调度类型之后，还包括：向用户设备UE发送信令消息，其中，信令消息中携带有调度类型。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：接收多媒体广播多播业务MBMS会话开始请求消息，其中，MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；根据MBMS会话开始请求消息中携带的时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：时间信息包括绝对时间和相对时间中至少之一，其中，绝对时间为
核心网网元开始发送MBMS业务会话对应的业务数据的时间，相对时间为核心网网元开始发送MBMS业务会话对应的业务数据的时间与核心网网元发送MBMS会话开始请求消息的时间之间的相对时间。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MBMS会话开始请求消息由核心网网元或接入网网元发送。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：更新多播控制信道MCCH消息，其中，更新后的MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE指示MBMS业务的业务数据的开始调度时间；根据开始调度时间，开始调度发送MBMS业务的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在通过PDCCH的DCI指示MBMS业务的业务数据的开始调度时间之前，还包括：使用组无线网络临时标识G-RNTI对PDCCH的DCI进行加扰，其中，G-RNTI为用于调度承载MBMS业务的业务数据的无线网络临时标识RNTI。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执 行：在通过MAC CE指示MBMS业务的业务数据的开始调度时间的情况下，MAC CE通过MAC协议数据单元PDU承载，其中，指示承载MAC协议数据单元PDU的物理下行共享信道PDSCH的调度信息在使用MBMS业务的无线网络临时标示RNTI加扰的DCI中指示。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：通过PDCCH的DCI或者MAC CE指示MBMS业务的业务数据的开始调度时间包括：在更新MCCH消息之后，开始调度MBMS业务的业务数据之前，在一个或多个MBMS业务的多播传输信道MTCH调度周期中，指示MBMS业务的业务数据的开始调度时间。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，第一调度周期为调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：接收更新的多播控制信道MCCH消息，其中，更新后的MCCH消息相对于更新前的MCCH消息增加多媒体广播多播业务MBMS业务的调度信息；在接收到更新的MCCH消息之后，接收通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE发送的MBMS业务的指示信息，其中，指示信息用于指示MBMS业务的业务数据的开始调度时间；根据指示的开始调度时间，接收MBMS业务的业务数据。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或 者时间间隔的大小，其中，第一调度周期为和接入网网元调度发送MBMS业务的第一个业务数据包所在的MBMS业务的调度周期，第二调度周期为调度发送PDCCH的DCI或MAC CE所在的MBMS业务的调度周期。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在接收到更新的MCCH消息之后，接收到MBMS业务的业务数据之前，接收到的指示信息为一个或多个，其中，指示信息在一个或多个MBMS业务的多播传输信道MTCH调度周期内发送。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MTCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播传输信道SC-MTCH，多播广播单频网络MBSFN技术中的MTCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：接收接入网网元发送的指示消息，其中，指示消息携带有接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及下属小区的定时信息，定时信息用于指示下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送定时信息时下属小区的当前系统帧号和系统超帧号中至少之一；根据MCCH修改周期长度，定时信息，以及接收到的多媒体广播多播业务MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向接入网网元发送接收到的MBMS会话开始请求消息。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：在向接入网网元发送接收到的MBMS会话开始请求消息之前，还包括：根据MCCH修改周期长度，以及MBMS业务开始发送时间，确定向接入网网元发送接收到的MBMS业务会话开始请求消息的时间，其中，确定的时间使得接入网网元在MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的MCCH消息中携带有MBMS业务的调度信息。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执 行：接入网网元为eNB，接收接入网网元发送的指示消息的当前网元为核心网网元，核心网网元为以下之一：广播组播业务中心BMSC，移动性管理实体MME，多播广播协调实体MCE。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行：MCCH为以下之一：单小区点到多点传输SC-PTM技术中的单小区多播控制信道SC-MCCH，多播广播单频网络MBSFN技术中的MCCH。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
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。
工业实用性
通过本发明实施例，由于根据接入网网元开始调度发送MBMS业务会话的开始调度时间来进行业务数据的接收，避免了由于终端过早开始尝试接收MBMS业务数据，或过晚开始接收MBMS业务数据导致不能完整的接收业务数据的问题，因此，可以解决相关技术中在接收MBMS业务数据时，存在UE不能完整接收MBMS业务数据包的问题，达到提高MBMS业务数据接收效率的效果。

Claims (38)

  1. 一种业务会话接收方法，包括：
    确定接入网网元开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
    根据确定的所述开始调度时间，接收所述MBMS业务会话对应的业务数据。
  2. 根据权利要求1所述的方法，其中，确定所述接入网网元开始调度发送所述MBMS业务会话的所述开始调度时间包括：
    确定预设多播控制信道MCCH修改周期，其中，所述预设MCCH修改周期用于所述接入网网元从所述预设MCCH修改周期开始更新MCCH消息，更新后的所述MCCH消息中携带有所述MBMS业务的调度信息；
    根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定所述接入网网元开始调度发送所述MBMS业务会话的所述开始调度时间。
  3. 根据权利要求2所述的方法，其中，确定所述预设MCCH修改周期包括：
    判断接收到的MCCH消息中是否携带有与所述MBMS业务会话对应的调度信息；
    在判断结果为携带有与所述MBMS业务会话对应的所述调度信息的情况下，判断是否接收到用于指示MCCH更新的更新通知；
    在判断结果为接收到所述更新通知的情况下，确定所述预设MCCH修改周期为：接收到携带有所述调度信息的所述MCCH消息的MCCH修改周期。
  4. 根据权利要求3所述的方法，其中，在判断是否接收到用于指示MCCH更新的更新通知之后，还包括：
    在判断结果为没有接收到所述更新通知的情况下，从接收到所述预设 MCCH消息的当前调度周期或者从所述当前调度周期的下一个多播传输信道MTCH调度周期开始接收所述MBMS业务会话对应的业务数据。
  5. 根据权利要求2所述的方法，其中，确定所述预设MCCH修改周期包括：
    判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在所述至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有与所述MBMS业务会话对应的调度信息；
    在判断结果为是的情况下，确定所述预设MCCH修改周期为所述至少两个连续的MCCH修改周期的所述最后一个MCCH修改周期。
  6. 根据权利要求5所述的方法，其中，在判断是否在至少两个连续的MCCH修改周期内接收到MCCH消息，且仅在所述至少两个连续的MCCH修改周期的最后一个MCCH修改周期内接收到的MCCH消息中携带有所述调度信息之后，还包括：
    在判断结果为否的情况下，从接收到所述预设MCCH消息的当前调度周期或者从所述当前调度周期的下一个MTCH调度周期开始接收所述MBMS业务会话对应的业务数据。
  7. 根据权利要求2所述的方法，其中，确定所述预设MCCH修改周期包括：
    接收携带有更新时间的第一MCCH消息，其中，所述更新时间与所述预设MCCH修改周期的起始位置相对应；
    判断接收到第二MCCH消息的MCCH修改周期的起始位置是否为所述更新时间，其中，所述第二MCCH消息中携带有与所述MBMS业务会话对应的调度信息；
    在判断结果为接收到所述第二MCCH消息的MCCH修改周期的起始位置为所述更新时间的情况下，确定所述预设MCCH修改周期为接收到所述第二MCCH消息的MCCH修改周期。
  8. 根据权利要求7所述的方法，其中，在判断接收到所述第二MCCH 消息的所述MCCH修改周期的所述起始位置是否为所述更新时间之后，还包括：
    在判断结果为接收到所述第二MCCH消息的MCCH修改周期的起始位置大于所述更新时间的情况下，从接收到所述第二MCCH消息的当前调度周期或者从所述当前调度周期的下一个MTCH调度周期开始接收所述MBMS业务会话对应的业务数据。
  9. 根据权利要求3、5或7所述的方法，其中，根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的所述对应关系，确定所述接入网网元开始调度发送所述MBMS业务会话的所述开始调度时间包括：
    根据确定的所述预设MCCH修改周期，确定所述开始调度时间为以下至少之一：所述预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，所述N1，N2为正整数；所述MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，所述N3为正整数；所述预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，所述N4，N5以及M为正整数。
  10. 一种业务会话发送方法，包括：
    确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
    根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据。
  11. 根据权利要求10所述的方法，其中，确定开始调度发送所述MBMS业务会话的所述开始调度时间包括：
    确定开始更新与所述MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；
    根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送所述MBMS业务会话的所述开始调度时间。
  12. 根据权利要求11所述的方法，其中，根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的所述对应关系，确定开始调度发送所述MBMS业务会话的所述开始调度时间包括：
    根据确定的所述预设MCCH修改周期，确定所述开始调度时间为以下至少之一：所述预设MCCH修改周期之后的第N1个MCCH修改周期起始位置之后的第N2个多播传输信道MTCH调度周期，其中，所述N1，N2为正整数；所述MCCH修改周期开始位置或结束位置之后的第N3个无线帧开始的多播传输信道MTCH调度周期，或第N3个无线帧之后的第1个MTCH调度周期，其中，所述N3为正整数；所述预设MCCH修改周期之后的第N4个满足系统超帧号对M取模为0的时刻开始的第N5个多播传输信道MTCH调度周期，其中，所述N4，N5以及M为正整数。
  13. 根据权利要求10所述的方法，其中，在根据确定的所述开始调度时间，发送所述MBMS业务会话对应的所述业务数据之前，还包括：
    更新多播控制信道MCCH消息，其中，所述MCCH消息中携带有与所述MBMS业务会话对应的调度信息，所述调度信息包括用于指示所述开始调度时间的时间信息。
  14. 一种业务会话发送方法，包括：
    接收多媒体广播多播业务MBMS会话开始请求消息，其中，所述MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；
    根据所述MBMS会话开始请求消息中携带的所述时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
  15. 根据权利要求14所述的方法，其中，所述时间信息包括绝对时 间和相对时间中至少之一，其中，所述绝对时间为所述核心网网元开始发送MBMS业务会话对应的所述业务数据的时间，所述相对时间为所述核心网网元开始发送MBMS业务会话对应的所述业务数据的时间与所述核心网网元发送所述MBMS会话开始请求消息的时间之间的相对时间。
  16. 根据权利要求14或15所述的方法，其中，所述MBMS会话开始请求消息由所述核心网网元或接入网网元发送。
  17. 一种业务会话发送方法，包括：
    更新多播控制信道MCCH消息，其中，更新后的所述MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；
    在更新所述MCCH消息之后，开始调度所述MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE指示所述MBMS业务的业务数据的开始调度时间；
    根据所述开始调度时间，开始调度发送所述MBMS业务的所述业务数据。
  18. 根据权利要求17所述的方法，其中，所述开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，所述第一调度周期为调度发送所述MBMS业务的第一个业务数据包所在的所述MBMS业务的调度周期，所述第二调度周期为调度发送所述PDCCH的DCI或所述MAC CE所在的所述MBMS业务的调度周期。
  19. 一种业务会话接收方法，包括：
    接收更新的多播控制信道MCCH消息，其中，更新后的所述MCCH消息相对于更新前的所述MCCH消息增加多媒体广播多播业务MBMS业务的调度信息；
    在接收到更新的所述MCCH消息之后，接收通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE发送的所述MBMS业务的指示信息，其中，所述指示信息用于指示所述MBMS业务的业务数据的开始调度时间；
    根据指示的所述开始调度时间，接收所述MBMS业务的所述业务数据。
  20. 根据权利要求19所述的方法，其中，所述开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，所述第一调度周期为和接入网网元调度发送所述MBMS业务的第一个业务数据包所在的所述MBMS业务的调度周期，所述第二调度周期为调度发送所述PDCCH的DCI或所述MAC CE所在的所述MBMS业务的调度周期。
  21. 一种业务会话发送方法，包括：
    接收接入网网元发送的指示消息，其中，所述指示消息携带有所述接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及所述下属小区的定时信息，所述定时信息用于指示所述下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送所述定时信息时所述下属小区的当前系统帧号和系统超帧号中至少之一；
    根据所述MCCH修改周期长度，所述定时信息，以及接收到的多媒体广播多播业务MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向所述接入网网元发送接收到的所述MBMS会话开始请求消息。
  22. 根据权利要求21所述的方法，其中，在向所述接入网网元发送接收到的所述MBMS会话开始请求消息之前，还包括：
    根据所述MCCH修改周期长度，以及所述MBMS业务开始发送时间，确定向所述接入网网元发送接收到的所述MBMS业务会话开始请求消息的时间，其中，确定的所述时间使得所述接入网网元在所述MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的所述MCCH消息中携带有所述MBMS业务的调度信息。
  23. 一种业务会话接收装置，包括：
    确定模块，配置为确定接入网网元开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
    接收模块，配置为根据确定的所述开始调度时间，接收所述MBMS业务会话对应的业务数据。
  24. 根据权利要求23所述的装置，其中，所述确定模块，还配置为确定预设多播控制信道MCCH修改周期，其中，所述预设MCCH修改周期用于所述接入网网元从所述预设MCCH修改周期开始更新MCCH消息，更新后的所述MCCH消息中携带有所述MBMS业务的调度信息；根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定所述接入网网元开始调度发送所述MBMS业务会话的所述开始调度时间。
  25. 一种业务会话发送装置，包括：
    确定模块，配置为确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
    发送模块，配置为根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据。
  26. 根据权利要求25所述的装置，其中，所述确定模块，还配置为确定开始更新与所述MBMS业务会话对应的预设多播控制信道MCCH消息的预设MCCH修改周期；根据确定的所述预设MCCH修改周期，以及预设MCCH修改周期与开始调度发送MBMS业务会话的开始调度时间之间的对应关系，确定开始调度发送所述MBMS业务会话的所述开始调度时间。
  27. 一种业务会话发送装置，包括：
    接收模块，配置为接收多媒体广播多播业务MBMS会话开始请求消息，其中，所述MBMS会话开始请求消息携带有核心网网元开始发送MBMS业务会话对应的业务数据对应的时间信息；
    确定模块，配置为根据所述MBMS会话开始请求消息中携带的所述时间信息，确定开始调度发送MBMS业务会话的开始调度时间。
  28. 根据权利要求27所述的装置，其中，所述时间信息包括绝对时间和相对时间中至少之一，其中，所述绝对时间为所述核心网网元开始发送MBMS业务会话对应的所述业务数据的时间，所述相对时间为所述核心网网元开始发送MBMS业务会话对应的所述业务数据的时间与所述核心网 网元发送所述MBMS会话开始请求消息的时间之间的相对时间。
  29. 一种业务会话发送装置，包括：
    更新模块，配置为更新多播控制信道MCCH消息，其中，更新后的所述MCCH消息中携带有多媒体广播多播业务MBMS业务的调度信息；
    指示模块，配置为在更新所述MCCH消息之后，开始调度所述MBMS业务的业务数据之前，通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE指示所述MBMS业务的业务数据的开始调度时间；
    发送模块，配置为根据所述开始调度时间，开始调度发送所述MBMS业务的所述业务数据。
  30. 根据权利要求29所述的装置，其中，所述开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中，所述第一调度周期为调度发送所述MBMS业务的第一个业务数据包所在的所述MBMS业务的调度周期，所述第二调度周期为调度发送所述PDCCH的DCI或所述MAC CE所在的所述MBMS业务的调度周期。
  31. 一种业务会话接收装置，包括：
    第一接收模块，配置为接收更新的多播控制信道MCCH消息，其中，更新后的所述MCCH消息相对于更新前的所述MCCH消息增加多媒体广播多播业务MBMS业务的调度信息；
    第二接收模块，配置为在接收到更新的所述MCCH消息之后，接收通过物理下行控制信道PDCCH的下行控制信息DCI或者媒体接入控制MAC控制单元CE发送的所述MBMS业务的指示信息，其中，所述指示信息用于指示所述MBMS业务的业务数据的开始调度时间；
    第三接收模块，配置为根据指示的所述开始调度时间，接收所述MBMS业务的所述业务数据。
  32. 根据权利要求31所述的装置，其中，所述开始调度时间为第一调度周期与第二调度周期之间的相对时间关系或者时间间隔的大小，其中， 所述第一调度周期为和接入网网元调度发送所述MBMS业务的第一个业务数据包所在的所述MBMS业务的调度周期，所述第二调度周期为调度发送所述PDCCH的DCI或所述MAC CE所在的所述MBMS业务的调度周期。
  33. 一种业务会话发送装置，包括：
    接收模块，配置为接收接入网网元发送的指示消息，其中，所述指示消息携带有所述接入网网元的下属小区中配置的多播控制信道MCCH修改周期长度，以及所述下属小区的定时信息，所述定时信息用于指示所述下属小区的系统帧号和系统超帧号中至少之一的起点的时间，或者，用于指示发送所述定时信息时所述下属小区的当前系统帧号和系统超帧号中至少之一；
    发送模块，配置为根据所述MCCH修改周期长度，所述定时信息，以及接收到的多媒体广播多播业务MBMS业务会话开始请求消息中指示的MBMS业务开始发送时间，向所述接入网网元发送接收到的所述MBMS会话开始请求消息。
  34. 根据权利要求33所述的装置，其中，还包括：
    确定模块，配置为根据所述MCCH修改周期长度，以及所述MBMS业务开始发送时间，确定向所述接入网网元发送接收到的所述MBMS业务会话开始请求消息的时间，其中，确定的所述时间使得所述接入网网元在所述MBMS业务的业务数据开始发送之前，更新MCCH消息，更新后的所述MCCH消息中携带有所述MBMS业务的调度信息。
  35. 一种业务会话系统，包括接入网网元、终端，所述接入网网元包括：第一处理器和第一传输装置，所述终端包括：第二处理器和第二传输装置，其中，
    所述第一处理器，配置为确定开始调度发送多媒体广播多播业务MBMS业务会话的开始调度时间；
    所述第一传输装置，配置为根据确定的所述开始调度时间，开始调度发送所述MBMS业务会话对应的业务数据；
    所述第二处理器，配置为确定所述接入网网元开始调度发送所述MBMS业务会话的开始调度时间；
    所述第二传输装置，配置为根据确定的所述开始调度时间，接收所述MBMS业务会话对应的所述业务数据。
  36. 根据权利要求35所述的系统，其中，
    所述第一处理器，还配置为根据协议约定或信令指定，确定所述开始调度时间；
    所述第二处理器，还配置为根据所述协议约定或所述信令指定，确定所述开始调度时间。
  37. 根据权利要求35或36所述的系统，其中，
    所述第一处理器，还配置为接收MBMS会话开始请求消息，其中，所述MBMS会话开始请求消息中携带有核心网网元开始发送MBMS业务会话对应的所述业务数据对应的时间信息；根据所述MBMS会话开始请求消息中携带的所述时间信息，确定所述开始调度时间。
  38. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至10任一项所述方法的步骤，或者实现权利要求10至13任一项所述方法的步骤，或者实现权利要求14至16任一项所述方法的步骤，或者实现权利要求17至18任一项所述方法的步骤，或者实现权利要求19至20任一项所述方法的步骤，或者实现权利要求21至22任一项所述方法的步骤。
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