WO2013020503A1 - 多媒体广播组播业务数据的传输控制方法、装置和系统 - Google Patents

多媒体广播组播业务数据的传输控制方法、装置和系统 Download PDF

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Publication number
WO2013020503A1
WO2013020503A1 PCT/CN2012/079808 CN2012079808W WO2013020503A1 WO 2013020503 A1 WO2013020503 A1 WO 2013020503A1 CN 2012079808 W CN2012079808 W CN 2012079808W WO 2013020503 A1 WO2013020503 A1 WO 2013020503A1
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Prior art keywords
service data
period
control channel
scheduling period
multimedia broadcast
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PCT/CN2012/079808
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English (en)
French (fr)
Inventor
黄曲芳
戴明增
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华为技术有限公司
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47647427&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2013020503(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2014524257A priority Critical patent/JP5977824B2/ja
Priority to EP16188750.0A priority patent/EP3177048B1/en
Priority to EP12821815.3A priority patent/EP2728912B1/en
Publication of WO2013020503A1 publication Critical patent/WO2013020503A1/zh
Priority to US14/175,303 priority patent/US9398605B2/en
Priority to US15/200,352 priority patent/US10117226B2/en
Priority to US16/148,664 priority patent/US10674477B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a multimedia broadcast multicast service.
  • MBMS Multimedia Broadcast Multicast Service
  • MBMS mainly refers to the network side can simultaneously to multiple terminals (also known as user equipment, User
  • the control plane process needs to be performed to establish bearer and allocate air interface resources.
  • the data source is along the gateway, the Mobility Management Entity (MME), the Multi-cell/Multicast Coordination Entity (MCE), and the base station (E-UTRAN).
  • MME Mobility Management Entity
  • MCE Multi-cell/Multicast Coordination Entity
  • E-UTRAN the base station
  • the NodeB the eNB
  • the data source sequentially informs the gateway of the characteristics of the service, the required resources, and the area to be sent.
  • the gateway allocates the corresponding IP multicast address and transmits it to the MME and the MCE.
  • the MCE allocates air interface transmission resources and notifies each eNB; the eNB joins the corresponding IP multicast group according to the IP multicast address allocated by the gateway, and updates the reserved subframe for MBMS transmission according to the air interface resource information allocated by the MCE.
  • the MBMS service data of the user plane sent by the data source flows through the gateway, and then reaches the eNBs in the IP multicast group through IP multicast, and then the eNB transmits to the terminal in the air interface.
  • the MBMS service data transmission follows the Multimedia Broadcast multicast service Single Frequency Network. MBSFN) transmission mode, that is, multiple eNBs in a certain area need to transmit identical MBMS service data in the same subframe, so that after the MBMS service data sent by each eNB arrives at the terminal, the terminal cannot distinguish which eNB is the eNB.
  • the signal sent, the signals sent by multiple eNBs can be superimposed and enhanced in the UE, thereby reducing the packet error rate.
  • the MCE will suspend certain services according to the actual communication control needs, that is, interrupt the MBMS service data of these services, so as to save air interface resources and reduce the power consumption of the eNB.
  • the service suspension is temporary; when the conditions for communication control are not met, the MBMS service data of the suspended service needs to be restored. Since the service suspension and service recovery are performed in a single-frequency broadcast area (MBSFN Area, MBSFA), and usually one service is transmitted in multiple MBSFAs, the data source usually continues. The MBMS service data of this service is sent for use by the MBSFA without suspending the service.
  • MBSFA single-frequency broadcast area
  • the control signaling of the MBMS service data that is, the multicast control channel (MCCH) message is cyclically transmitted.
  • the MCE can only modify the MCCH message at some predefined time points, and two possible modified MCCH messages.
  • the interval between the time points is called the MCCH modification period, and each eNB in the same MBSFA range uses the same MCCH modification period number.
  • the MCE determines that a certain service needs to be suspended or resumed in a certain MBSFA range, the MCE first notifies all eNBs in the MBSFA range, and updates the MCCH message from a certain MCCH modification period to ensure that all eNBs in the same MBSFA range are updated synchronously.
  • MCCH message how the eNB in the same MBSFA range implements the suspension or recovery control of the MBMS service data has no corresponding solution in the prior art. Summary of the invention
  • the embodiment of the invention provides a method, a device and a system for controlling transmission of multimedia broadcast multicast service data, so as to implement transmission control of multimedia broadcast multicast service data.
  • An embodiment of the present invention provides a method for controlling transmission of multimedia broadcast multicast service data, including:
  • the multimedia broadcast multicast service data is suspended or resumed during the determined scheduling period.
  • Another embodiment of the present invention further provides another method for controlling transmission of multimedia broadcast multicast service data, including:
  • the indication information is sent to each base station in the range of the single-frequency network area of the same multimedia broadcast multicast service, and is used to instruct the base station to determine, according to the reference time, a scheduling period for suspending or restoring the transmission of the multimedia broadcast multicast service data.
  • Another aspect of the embodiment of the present invention further provides a base station, including:
  • a scheduling period determining module configured to determine, according to a reference moment, a scheduling period for suspending or restoring the sending of the multimedia broadcast multicast service data
  • a transmission control module configured to pause or resume sending the said scheduling period
  • a further aspect of the embodiments of the present invention provides a network device, including:
  • a generating module configured to generate indication information including a reference time
  • a sending module configured to separately send the indication information to each base station in a range of a single-frequency network area of the same multimedia broadcast multicast service, to indicate that the base station determines to pause or resume sending the multimedia broadcast multicast service data according to the reference moment Scheduling cycle.
  • Another aspect of the embodiments of the present invention further provides a communication system, including the foregoing base station and the foregoing network device.
  • the base station determines, according to the reference time acquired in advance, a scheduling period for starting to suspend or resume transmitting MBMS service data, and suspending in the determined scheduling period. Or recovering and transmitting the MBMS service data, thereby implementing transmission control of the MBMS service data by the base station.
  • Embodiments of the present invention are also advantageous for each base station in the same MBSFA range to synchronously suspend or resume MBMS of the same service.
  • the transmission of business data helps to reduce business interference.
  • FIG. 1 is a flow chart of a method for controlling transmission of MBMS service data according to Embodiment 1 of the present invention
  • FIG. 2 is a flow chart of a method for controlling transmission of MBMS service data according to Embodiment 2 of the present invention
  • 3a is a schematic diagram of mapping MBMS service data to an MCH scheduling period according to an embodiment of the present invention
  • FIG. 3b is a schematic diagram of a MBSFN subframe in which a MBMS service data is mapped to an MCH scheduling period according to an embodiment of the present invention
  • FIG. 3c is a schematic diagram of an MCCH modification period for updating an MCCH message according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a scenario for suspending transmission of MBMS service data according to an embodiment of the present invention
  • FIG. 3 is an example of a situation in which interference is generated by restoring and transmitting MBMS service data according to an embodiment of the present invention
  • FIG. 4 is a signaling interaction diagram of a MBMS service data transmission control method according to Embodiment 3 of the present invention.
  • FIG. 5 is a first example of an alternative manner for determining an MBMS service data transmission control timing according to Embodiment 3 of the present invention.
  • FIG. 6 is a second exemplary embodiment of determining an MBMS service data transmission control timing according to Embodiment 3 of the present invention
  • FIG. 7 is a third exemplary third embodiment of determining an MBMS service data transmission control timing according to Embodiment 3 of the present invention
  • FIG. 8 is a signaling interaction diagram of a MBMS service data transmission control method according to Embodiment 4 of the present invention.
  • Embodiment 9 is an example of an alternative manner for determining an MBMS service data transmission control timing according to Embodiment 4 of the present invention.
  • FIG. 10 is a signal interaction diagram of a MBMS service data transmission control method according to Embodiment 5 of the present invention.
  • FIG. 11 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • FIG. 12 is a schematic structural diagram of a network device according to Embodiment 7 of the present invention. detailed description
  • FIG. 1 is a flow chart of a method for controlling transmission of MBMS service data according to Embodiment 1 of the present invention.
  • the executive body of this embodiment may be a base station, such as an eNB or the like.
  • the MBMS service data transmission control method shown in this embodiment includes:
  • Step 11 Determine a scheduling period for suspending or resuming transmission of MBMS service data according to a reference time.
  • the base station acquires the reference time before determining whether to suspend or resume the scheduling period of transmitting the MBMS service data.
  • the reference moment may be directly indicated by a network side device such as an MCE.
  • the reference time may be indirectly indicated by the network side device, such as an MCE, for example: the MCE instructs the base station to update the MCCH modification period of the MCCH message, and the base station determines the parameter by the MCCH modification period. Test time.
  • the base station determines a scheduling period along the time axis from the reference time, and uses the scheduling period as a scheduling period for suspending or restoring transmission of MBMS service data.
  • the base station may search for the Mth scheduling period of the multicast channel (Multicast Channel, MCH) carrying the MBMS service data starting from the reference time; M is an integer greater than or equal to 1; The scheduling period that is reached is a scheduling period for suspending or restoring the MBMS service data.
  • MBSFA Multimedia Broadcast multicast service Single Frequency Network Area
  • Step 12 Suspend or resume sending the MBMS service data during the determined scheduling period.
  • the base station determines, according to the pre-acquired reference time, a scheduling period for suspending or resuming transmission of the MBMS service data, and suspending or resumes transmitting the MBMS service data in the determined scheduling period, Thereby, the transmission control of the MBMS service data by the base station is realized.
  • the base station in the same MBSFA can use the same method provided by the embodiment of the present invention to determine the same scheduling period for suspending or restoring the MBMS service data of a certain service, so that the base stations can synchronously suspend or resume the MBMS service data of the same service.
  • the transmission is beneficial to reduce business interference.
  • the executor of this embodiment may be a network side device such as an MCE or the like with respect to a base station.
  • the MBMS service data transmission control method provided in this embodiment includes:
  • Step 21 Generate indication information including the reference time.
  • the reference time is used by the base station to determine a scheduling period for suspending or restoring the MBMS service data, which may include, but is not limited to, a starting moment specified by the network side device; or, the MCCH modification period is biased.
  • the value N, N is an integer greater than or equal to 1.
  • Step 22 The indication information is separately sent to each base station in the same MBSFA range, and is used to instruct the base station to determine, according to the reference time, a scheduling period for suspending or resuming transmission of MBMS service data.
  • Each base station in the same MBSFA range receives the network side device, for example, the MCE sends the indication information, obtains the reference time included in the indication information, and determines, according to the reference time, a scheduling period for suspending or restoring the transmission of the MBMS service data.
  • the reference time may be a start time specified by the network side device, such as a start time specified by MCE or OAM (Operation, Administration and Maintenance), and a base station in the same MBSFA range may be according to the network.
  • a start time indicated by the side device determining an Mth scheduling period of the MCH carrying the MBMS service data after the start time indicated by the network side device, and scheduling period for sending or stopping the MBMS service data; Is an integer greater than or equal to 1.
  • the reference time may be an MCCH modification period offset value N, where N is an integer greater than or equal to 1, then: each base station in the same MBSFA range may determine to modify the multicast control channel of the multicast control channel message.
  • the Mth scheduling period of the multicast channel carrying the multimedia broadcast multicast service data after the start time of the modification period of the Nth multicast control channel after the period, for the pause or resume transmission of the multimedia broadcast multicast The scheduling period of the service data; M is an integer greater than or equal to 1.
  • the network device indicates, for each base station in the same MBSFA, a reference time for determining whether to suspend or resume the MBMS service data scheduling period for transmitting a certain service, and therefore, each base station in the same MBSFA may be configured according to The reference time is determined to suspend or resume the same scheduling period of the MBMS service data for sending the service, and the base station synchronously suspends or resumes the transmission of the MBMS service data of the same service, thereby facilitating the reduction of service interference.
  • the following describes the MBMS service data transmission mechanism and analyzes LTE in conjunction with FIG. 3a to FIG. 3e.
  • the system generates a possible cause of the service interference, and illustrates the technical essence of reducing the service interference by using the technical solution provided by the embodiment of the present invention.
  • FIG. 3a is a schematic diagram of a scheduling period in which MBMS service data is mapped to an MCH according to an embodiment of the present invention.
  • the MCH of each service bearer may be determined in advance, and each scheduling period of each MCH includes one or more subframes that can be used for MBMS service data transmission, and such subframes are referred to as MBSFN subframes.
  • MBSFN subframes there are three subframes in each radio frame used for MBSFN transmission, which are subframes 3, 6, and 8, respectively, that is, subframes 3, 6, and 8 are MBSFN frames.
  • the MCH shown in the figure carries the MBMS service data of services A, B and C.
  • the scheduling period of the MCH is numbered in chronological order from a predetermined time.
  • the eNB maps each MBMS service data packet to a scheduling period of the corresponding MCH according to the timestamp carried by each MBMS service data packet. For example: in Figure 3a, the MBMS service data packet of service A and the MBMS service data packet of service B are mapped to the Mth scheduling period of the MCH; the MBMS service data packet of service B of the second and third numbers The MBMS service data packet of the service C is mapped to the M+1th scheduling period of the MCH, where M represents the number of the scheduling period of the MCH, and is an integer greater than or equal to 1.
  • FIG. 3b is a schematic diagram of a scheduling period MBSFN subframe in which MBMS service data is mapped to an MCH according to an embodiment of the present invention.
  • the MBMS service data of each service is sequentially arranged into each MBSFN subframe, and is first arranged according to services.
  • This service sequence can be determined by the MCE and indicated to the eNB; the MBMS service data of the same service is sequentially Arrange in order. If the business order is B, C, then the specific transmission in the above example is shown in Figure 3b.
  • the service MB data packet of service A is mapped to the subframe 3; if the subframe 3 has remaining resources, the MAP MBMS service data packet is further mapped to the subframe 3; The remaining content of the MBMS service data packet mapped to subframe 3 is mapped to subframe number 6; and so on. If the MBSFN subframe resource included in the current scheduling period of the MCH has been exhausted, but the transmission of the MBMS service data packet is not completed, the eNB discards the service data that is not transmitted in the current scheduling period of the MCH in the MBMS service data packet. In the MBMS system, the MCE will suspend certain services according to the actual communication needs, so as to save air interface resources and reduce the power consumption of the eNB.
  • the MCE instructs each eNB to count the number of recipients of MBMS service data for a certain service; if the number of recipients is too small, the MCE can suspend the service. For example, when the MBMS service data of the higher-priority service starts to be transmitted, if the MCE finds that the current air interface resource is insufficient, the MCE will suspend some low-priority services.
  • the MCE may instruct the eNB to re-count the number of receivers of the MBMS service data of the service. If the number of receivers rises, the MCE may determine that the eNB resumes transmitting the MBMS of the service in the air interface. Business data. For another example, after the MBMS service data transmission of one or more services other than the suspended service is completed, part of the air interface resource is vacated, and the MCE may instruct the eNB to resume the MBMS service data for sending the service.
  • the terminal determines to receive the MBMS service data according to the control signaling of the MBMS service, that is, the MCCH message
  • the service information indicated by the MCCH message is to correspond to the MBMS that is actually transmitted.
  • each eNB determines to suspend or resume transmitting MBMS service data of a certain service, based on the existing update mechanism of the MCCH message, each eNB is guaranteed to update the MCCH message synchronously.
  • the MCCH message is sent cyclically.
  • the MCE can only update the MCCH message at some predefined time points.
  • the interval between the two possible time points for updating the MCCH message is called the MCCH modification period.
  • Each MCCH modification period may include multiple MCCH repetition periods, as shown in FIG.
  • each MCCH modification period may include 4 MCCH repetition periods.
  • the eNB sends an MCCH message once in each of the four MCCH repetition periods, and the content of the MCCH message sent in the four MCCH repetition periods is the same; the eNB may modify the content of the MCCH message only at the beginning of the next MCCH modification period. That is, the MCCH message is updated.
  • each MCCH modification period is numbered.
  • Each eNB in the MBSFN numbers the MCCH modification period at the same starting point. Therefore, at the same time, each eNB in the same MBSFA range uses the same MCCH modification period number.
  • the MCE When the MCE determines that it is necessary to suspend or resume a certain service within a certain MBSFA, the MCE first notifies all the eNBs in the MBSFA, from a certain one.
  • the MCCH modification period begins to update the MCCH message. All the eNBs in the same MBSFA range update the MCCH message in the same MCCH modification period to ensure that the service information indicated in the MCCH message is consistent with the MBMS data actually transmitted by the air interface.
  • each eNB in the same MBSFA updates the MCCH message synchronously in the same MCCH modification period
  • the eNB since the prior art does not have a unified method for determining the transmission control timing of the corresponding MBMS service data, the eNB usually randomly determines the transmission control of the corresponding MBMS service data.
  • the timing may cause traffic interference.
  • FIG. 3 is an example of a scenario for suspending transmission of MBMS service data provided by an application scenario according to an embodiment of the present invention.
  • the MCE determines to suspend service A in the range of MBSFA 2
  • the MCE indicates all eNBs in the range of MBSFA 2, such as eNB 21 and eNB 22.
  • the MCE indicates that all eNBs in the range of the MBSFA 2, such as the eNB 21 and the eNB 22, start to update the MCCH message at the start time of the MCCH modification period of No. 81: the control information corresponding to the service A is deleted from the original MCCH message.
  • the eNB 21 and the eNB 22 update the MCCH message synchronously, but may start to suspend the transmission of the data packet of the service A at different scheduling periods.
  • FIG. 3e is a schematic diagram of a scenario for recovering and transmitting MBMS service data to introduce interference provided by an application scenario according to an embodiment of the present invention.
  • the MCE determines to recover Service A within the MBSFA 2 range
  • the MCE indicates that all eNBs within the MBSFA 2 range, such as eNB 21 and eNB 22, begin to update the MCCH message at the beginning of the same numbered MCCH modification period.
  • the eNB 21 and the eNB 22 update the MCCH message synchronously, but may resume the MBMS service data for transmitting the service at different scheduling periods.
  • the eNB 21 randomly determines to recover the data packet of the service A in the Mth scheduling period of the MCH, and the MBMS service data sent by the eNB 21 in the Mth scheduling period of the MCH is: the data packet 360, 361 of the service A, and the service Packets 0 and 1 of B; eNB 22 randomly determines to recover the MBMS data of the service in the M+1th scheduling period of the MCH, and the MBMS data sent by the eNB 22 in the M+1 scheduling period of the MCH is: 0, 1 packet. It can be seen that, in the Mth scheduling period of the MCH, the data packets transmitted by the eNB 21 and the eNB 22 on the air interface are different.
  • the eNB determines the timing of the MBMS service data transmission control based on the pre-acquisition reference time. Since the eNBs in the same MBSFA range adopt the same method, the timing of the determined MBMS service data transmission control is the same, so that each eNB in the same MBSFA range can be suspended or resumed to transmit the same MBMS service data, thereby reducing service interference. .
  • FIG. 4 is a signaling interaction diagram of a method for controlling transmission of MBMS service data according to Embodiment 3 of the present invention.
  • the reference moment in this embodiment is: Update a certain moment of the MCCH modification period of the MCCH message.
  • the method provided in this embodiment includes:
  • Step 41 The MCE determines to suspend or resume service A, and generates MBMS scheduling information.
  • the MCE determines to suspend the service A, the MCE deletes the control signaling of the service A in the MCCH message to update the MCCH message; if the MCE determines to resume the suspended service A, the control signaling of the service A is added to the MCCH message to Update the MCCH message.
  • the MBMS scheduling information includes: a parameter "MCCH update modification period", configured to indicate an MCCH modification period for updating an MCCH message, where the MCCH message includes control signaling corresponding to MBMS service data, such as: suspended or restored MBMS service information .
  • Step 42 The MCE sends MBMS scheduling information to the eNB, where the MBMS scheduling information includes a parameter "Modification Period of MCCH Update".
  • Step 43 The eNB receives the MBMS scheduling information, and updates the MCCH modification period of the MCCH modification period corresponding to the parameter "Modification Period of MCCH Update" in the MCCH modification period corresponding to the parameter "Modification Period of MCCH Update” included in the MBMS scheduling information.
  • the MCCH message compares the newly received MCCH message with the already stored MCCH message (referred to as the original MCCH message). If the newly received MCCH message lacks the control signaling of the service A with respect to the original MCCH message, The eNB learns that the MCE has suspended the service A. If the newly received MCCH message adds the control signaling of the service A to the original MCCH message, the eNB learns that the MCE resumes the service A.
  • Step 44 The eNB starts from a moment when the MCCH modification period of the MCCH message is updated, and determines that the first scheduling period of the MCH that carries the MBMS service data is a scheduling period for suspending or restoring the MBMS service data.
  • the service and the MCH are pre-determined.
  • the MBMS data of a service such as service A, can only be transmitted on the MCH corresponding to service A.
  • the following describes an optional implementation manner for determining, by the eNB, a scheduling period for starting or suspending the MBMS service data from the time when the MCCH modification period of the MCCH message is updated, according to FIG. 5 to FIG.
  • MCH1, MCH2, and MCH3 are taken as an example in FIG. 5 to FIG. 7; this example should not be construed as limiting the essence of the technical solution of the present invention.
  • Embodiment 1 starting from the start time of updating the MCCH modification period of the MCCH message, searching backward for the first scheduling period of the MCH carrying the MBMS service data; determining the found scheduling period, for suspending or restoring The scheduling period of the MBMS service data is as shown in FIG. 5 .
  • the eNB searches for the first scheduling period of the MCH1 from the start time of the MCCH modification period of the updated MCCH message, that is, corresponding to the first scheduling period shown in FIG. Timing 1; and determining the first scheduling period of the found MCH1, is a scheduling period for suspending or resuming the MBMS service data of the service A.
  • the eNB searches for the first scheduling period of the MCH2 from the start time of the MCCH modification period of the update MCCH message, that is, corresponding to the Timing 2; and determine the MCH2 found
  • the first scheduling period is a scheduling period for suspending or resuming the MBMS service data of the service A.
  • the eNB searches for the first scheduling period of the MCH3 from the start time of the MCCH modification period of the update MCCH message, that is, corresponding to FIG. Timing 3; and determining the first scheduling period of the found MCH3, to suspend or resume the scheduling period of the MBMS data of the service A.
  • Embodiment 2 starting from the first transmission start time of the MCCH message in the MCCH tampering period of the MCCH message, searching for the first scheduling period of the MCH carrying the MBMS service data backward; Determining the discovered scheduling period is a scheduling period for suspending or restoring the MBMS service data.
  • Each MCCH modification period may include four MCCH repetition periods, and the contents of MCCH messages transmitted in different MCCH repetition periods are the same.
  • the MCCH message may be sent in the first or non-first MBSFN subframe of each MCCH repetition period.
  • Each MCCH repetition period may include four common periods, and each common period includes: one resource block of MCH1, MCH2, and MCH3.
  • the eNB If it is determined in advance that the MCH of the MBMS service data carrying the service A is MCH1, the eNB starts from the time of transmitting the MCCH message in the first repetition period of the MCCH modification period of the update MCCH message, and searches for the first scheduling period of the MCH1 backward. That is, corresponding to the timing 1 shown in FIG. 6; and determining the first scheduling period of the found MCH1, to suspend or resume the scheduling period of the MBMS service data for transmitting the service A.
  • the eNB starts from the time when the MCCH message is transmitted in the first repetition period of the MCCH modification period of the update MCCH message, and searches for the first scheduling period of the MCH2 backward. That is, corresponding to the timing 2 shown in FIG. 6; and determining the first scheduling period of the found MCH2, to suspend or resume the scheduling period of the MBMS service data for transmitting the service A.
  • the MCH of the MBMS data carrying the service A is MCH3
  • the first scheduling period of the MCH3 is searched backward, that is, the timing 3 shown in FIG. 6; and the found MCH3 is determined.
  • the first scheduling period is a scheduling period for suspending or resuming the MBMS service data of the service A.
  • Embodiment 3 starting from the start time of updating the second MCCH repetition period in the MCCH modification period of the MCCH message, searching backward for the first scheduling period of the MCH carrying the MBMS service data; determining the found The scheduling period is a scheduling period for suspending or restoring the MBMS service data.
  • Each MCCH modification period may include four MCCH repetition periods, and the contents of MCCH messages transmitted in different MCCH repetition periods are the same.
  • the eNB searches for the first scheduling period of the MCH1 from the start time of the second repetition period in the MCCH modification period of the update MCCH message, That is, corresponding to the timing 1 shown in FIG. 7; and determining the first scheduling period of the found MCH1, the scheduling period of the MBMS service data for transmitting the service A is suspended or resumed.
  • the eNB searches for the first scheduling period of the MCH2 from the start time of the second repetition period in the MCCH modification period of the update MCCH message, That is, corresponding to the timing 2 shown in FIG. 7; and determining the first scheduling period of the found MCH2, the scheduling period of the MBMS service data for transmitting the service A is suspended or resumed.
  • the eNB searches for the first scheduling period of the MCH3 from the start time of the second repetition period in the MCCH modification period of the update MCCH message. That is, corresponding to the timing 3 shown in FIG. 7; and determining the first scheduling period of the found MCH3, the scheduling period of the MBMS service data for transmitting the service A is suspended or resumed.
  • Step 45 The eNB pauses or resumes sending the service A in the scheduling period determined in step 44.
  • MBMS business data The eNB pauses or resumes sending the service A in the scheduling period determined in step 44.
  • the data source continuously delivers the MBMS service data of the service A via the gateway (GateWay, GW).
  • the eNB may quit the IP multicast group, and the MCE indicates to re-join the corresponding IP multicast group when the service A is restored, so that the eNB does not be in the MBMS service.
  • the data packet of the MBMS service is received during the suspension; or the eNB may not exit the IP multicast group, so that the eNB does not need to join the IP multicast group again when the MCE indicates to restore the service A. If this method is used, the eNB is in the service.
  • the MBMS data of the service A will continue to be received during the suspension of A, and the eNB may discard the MBMS data of the received service A.
  • each eNB in the same MBSFA determines to start the same scheduling period of the MBMS service data transmission control according to the same time of the MCCH modification period of the updated MCCH message, and pauses or resumes transmitting the MBMS of the same service in the determined scheduling period.
  • the service data can therefore enable the eNB to synchronously suspend or resume the transmission of MBMS service data of the same service, thereby reducing service interference.
  • FIG. 8 is a signaling interaction diagram of a MBMS service data transmission control method according to Embodiment 4 of the present invention.
  • the reference time in this embodiment is: the start time of the Nth MCCH modification period after the MCCH modification period of the MCCH message is updated, and N represents the MCCH modification period offset value, which is an integer greater than or equal to 1.
  • the method provided in this embodiment includes:
  • Step 81 The MCE determines to suspend or resume service A, and generates MBMS scheduling information.
  • Step 82 The MCE sends MBMS scheduling information to the eNB, where the MBMS scheduling information includes a parameter "Modification Period of MCCH Update".
  • Step 83 The eNB receives the MBMS scheduling information, and updates the MCCH cancellation step in the MCCH modification period corresponding to the parameter “Modification Period of the MCCH Update” included in the MBMS scheduling information.
  • Step 84 The Nth after the eNB changes the MCCH modification period of the MCCH message.
  • N represents an MCCH modification period offset value, Is an integer greater than or equal to 1.
  • the eNB When determining the scheduling period in which the MBMS service data is suspended or resumed, the eNB acquires the MCCH modification period offset value in the same manner.
  • the scheduling period offset value N configured by each eNB in the MBSFA range is the same.
  • the MCCH modification period offset value N may be pre-configured on the eNB.
  • the MCCH tampering period offset value N may be indicated to the eNB by the network side device, such as the MCE, and the network side device, such as the MCE, indicates to the eNB that the MCCH modification period offset value N is not limited, for example: MCCH modification period offset
  • the value N may be carried in the MBMS scheduling information described in the foregoing step 82 to the eNB; or the MCCH modification period offset value N may be carried in other M2 interface messages between the MCE and the eNB except the MBMS scheduling information. , such as initial configuration messages, MBMS service start/end/update messages, and so on.
  • the eNB searches for the first scheduling period of the MCH1 from the start time of the first MCCH modification period after the MCCH modification period of the MCCH message is updated. That is, corresponding to the timing 1 shown in FIG. 9; determining the first scheduling period of the found MCH1, which is to suspend or resume the scheduling period of the MBMS service data of the service A.
  • the eNB searches for the first scheduling period of the MCH2 from the start time of the first MCCH modification period after the MCCH modification period of the MCCH message is updated. That is, corresponding to the timing 2 shown in FIG. 9; determining the first scheduling period of the found MCH2, which is to suspend or resume the scheduling period of the MBMS service data of the service A.
  • the eNB changes the period of the first MCCH after the MCCH modification period of the MCCH message is updated. Starting from the start time, searching for the first scheduling period of the MCH3, that is, corresponding to the timing 3 shown in FIG. 9; determining the first scheduling period of the found MCH3, for suspending or restoring the scheduling of the MBMS service data of the service A cycle.
  • Step 85 The eNB suspends or resumes transmitting the MBMS service data of the service A in the scheduling period determined in step 84.
  • the eNBs in the same MBSFA use the same reference time to determine the same scheduling period for starting the MBMS service data transmission control, and pause or resume the transmission of the MBMS service data of the same service in the determined scheduling period, so that eNB synchronization can be implemented. Suspend or resume the transmission of MBMS service data of the same service, thereby reducing service interference.
  • FIG. 10 is a signal interaction diagram of a MBMS service data transmission control method according to Embodiment 5 of the present invention.
  • the reference moment in this embodiment is: the starting moment indicated by the network side device.
  • the method provided in this embodiment includes:
  • Step 101 The MCE determines to suspend or resume service A, and generates MBMS scheduling information.
  • Step 103 The eNB receives the MBMS scheduling information, and updates the MCCH cancellation step 104 in the MCCH modification period corresponding to the parameter “Modification Period of the MCCH Update” included in the MBMS scheduling information.
  • the eNB determines from the start time indicated by the network side device.
  • the first scheduling period of the MCH carrying the MBMS service data is a scheduling period for suspending or restoring the MBMS service data.
  • the eNB may receive the indication information including the reference time, before the scheduling period of the MBMS service data is started to be suspended or resumed, where the reference time may include a start time indicated by the network side device, such as an MCE indication. The starting moment.
  • the eNB according to the network side device indication The starting time, such as the starting time indicated by the MCE, determines the scheduling period for suspending or restoring the MBMS service data.
  • the network side device acquired by each eNB in the same MBSFA range has the same starting time as indicated by the MCE.
  • the network side device such as the start time indicated by the MCE, may be carried in the MBMS scheduling information described in the foregoing step 102 to the eNB; or the network side device, such as the start time indicated by the MCE, may be carried in the MBMS scheduling information.
  • Other M2 interface messages between the MCE and the eNB such as initial configuration messages, MBMS service start/end/update messages, and so on.
  • Step 105 The eNB suspends or resumes transmitting the MBMS service data of the service A in the scheduling period determined in step 104.
  • the eNBs in the same MBSFA determine the start of the same scheduling period for starting the MBMS service data transmission control according to the start time indicated by the network side device, and suspend or resume the transmission of the MBMS service data of the same service in the determined scheduling period.
  • the eNB can synchronously suspend or resume the transmission of MBMS service data of the same service, thereby reducing service interference.
  • FIG. 11 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • the base station shown in Fig. 11 includes: a scheduling period determining module 111 and a transmission control module 112.
  • the scheduling period determining module 111 is configured to determine, according to a reference moment, a scheduling period for suspending or resuming sending the MBMS service data.
  • the transmission control module 112 can be configured to suspend or resume transmitting the MBMS service data during the determined scheduling period.
  • the scheduling period determining module 111 may be specifically configured to determine, according to the reference moment, the Mth of the multicast channel that carries the multimedia broadcast multicast service data after the reference time. a scheduling period, a scheduling period for transmitting the multimedia broadcast multicast service data for the suspension or recovery; M is an integer greater than or equal to 1.
  • the foregoing reference moment may include: updating a start time of an MCCH modification period of the MCCH message.
  • the scheduling period determining module 111 may be specifically configured to determine, according to the start time of the MCCH ⁇ ⁇ ⁇ period of updating the MCCH message, to determine the MBMS service data.
  • the Mth scheduling period of the MCH is a scheduling period for suspending or restoring the MBMS service data.
  • the MCCH message includes control signaling corresponding to the MBMS service data.
  • the foregoing reference moment may include: updating a starting moment of transmitting the MCCH message for the first time in an MCCH modification period of the MCCH message.
  • the scheduling period determining module 111 may be specifically configured to determine, from the start time of the first transmission of the MCCH message in the MCCH modification period of the update MCCH message, to determine the Mth of the MCH carrying the MBMS service data.
  • the scheduling period is a scheduling period in which the MBMS service data is suspended or resumed.
  • the foregoing reference moment may include: updating a start time of the second MCCH repetition period in the MCCH modification period of the MCCH message.
  • the scheduling period determining module 111 may be specifically configured to determine, according to the start time of the second MCCH repetition period in the MCCH modification period of the updated MCCH message, the Mth scheduling period of the MCH carrying the MBMS service data. A scheduling period for suspending or restoring the MBMS service data.
  • the foregoing reference time may include: updating a start time of the Nth MCCH modification period after the MCCH modification period of the MCCH message, where N is an MCCH modification period offset value, being an integer greater than or equal to 1.
  • the scheduling period determining module 111 may be specifically configured to determine, according to the start time of the Nth MCCH modification period after the MCCH modification period of the MCCH message, the Mth scheduling period of the MCH carrying the MBMS service data. A scheduling period for suspending or restoring the MBMS service data.
  • the base station may further include: an obtaining module 113.
  • the obtaining module 113 may be configured to pre-configure the MCCH modification period offset value; or obtain the MCCH modification period offset value according to the received indication information including the MCCH modification period offset value.
  • the foregoing reference moment may include: a starting moment indicated by the network side device, such as a starting moment indicated by the MCE.
  • the base station may further include: an obtaining module 113.
  • the acquiring module is configured to receive indication information that includes the reference time; the reference time includes: a starting moment indicated by the network side device.
  • the scheduling period determining module 111 may be specifically configured to determine, according to a starting moment indicated by the network side device, such as the MCE, the Mth tone of the MCH that carries the MBMS service data.
  • the degree period is a scheduling period for suspending or restoring the MBMS service data; M is an integer greater than or equal to 1.
  • the base station provided in this embodiment may determine, according to the pre-acquired reference time, a scheduling period for suspending or resuming transmission of the MBMS service data, and suspending or resume transmitting the MBMS service data in the determined scheduling period, thereby implementing the base station to the MBMS service data.
  • the base station in the same MBSFA can use the same method provided by the embodiment of the present invention to determine the same scheduling period of starting to suspend or resume the MBMS service data of a certain service, so that the base station can synchronously suspend or resume the MBMS service of the same service.
  • the transmission of data helps to reduce business interference.
  • FIG. 12 is a schematic structural diagram of a network device according to Embodiment 7 of the present invention.
  • the network shown in FIG. 12 includes: a generating module 121 and a transmitting module 122.
  • the generation module 121 can be used to generate indication information including a reference time.
  • the reference time is used by the base station to determine a scheduling period for suspending or restoring MBMS service data, which may include, but is not limited to, a starting moment specified by the network side device, for the base station to indicate according to the starting time indicated by the network side device.
  • the sending module 122 may be configured to separately send the indication information to each base station in the range of the single-frequency network area of the same multimedia broadcast multicast service, to indicate that the base station determines to pause or resume sending the multimedia broadcast multicast service data according to the reference time. Scheduling cycle.
  • the network device provided in this embodiment indicates, for each base station in the same MBSFA, a reference time for determining whether to suspend or resume the MBMS service data scheduling period for transmitting a certain service, so each base station in the same MBSFA may determine to suspend or resume sending according to the reference time.
  • Number of MBMS services in the service According to the same scheduling period, the base station synchronously suspends or resumes the transmission of the MBMS service data of the same service, thereby facilitating the reduction of service interference.
  • the network device provided in this embodiment may be, but not limited to, an MCE.
  • For the working mechanism refer to the corresponding descriptions of the corresponding embodiments in FIG. 2 and FIG. 4 to FIG. 10, and details are not described herein again.
  • the embodiment of the present invention further provides a communication system, where the communication system includes at least the base station as shown in FIG. 11 and the network device as shown in FIG. 12, and the base station and the network device are communicatively connected.
  • the working mechanism of the base station refer to the corresponding description of the corresponding embodiment in FIG. 1 and FIG. 4 to FIG. 10, and the working mechanism of the network device can be referred to the corresponding description of the corresponding embodiment in FIG. 2 and FIG. Let me repeat.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment as described in the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Abstract

本发明实施例公开了一种多媒体广播组播数据（MBMS）的传输控制方法、装置和系统。该方法包括：根据一参考时刻确定暂停或恢复发送MBMS业务数据的调度周期（11）；在所述确定的调度周期，暂停或恢复发送所述MBMS业务数据（12）。本发明实施例可实现基站对MBMS业务数据的传输控制，有利于相同多媒体广播多播业务单频网区域（MBSFA）范围内的各基站同步暂停或恢复相同业务的MBMS业务数据的发送，从而有利于降低业务干扰。

Description

多媒体广播组播业务数据的传输控制方法、 装置和系统
本申请要求 2011年 8月 8 日提交的， 申请号为 201110226133. 7 ,发明 名称为 《多媒体广播组播业务数据的传输控制方法、 装置和系统》 的中国 申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信技术， 尤其涉及一种多媒体广播组播业务
( Multimedia Broadcast Multicast Service , 筒称 MBMS )数据的传输控制方 法、 装置和系统。
背景技术
MBMS 主要指网络侧可以同时向多个终端 （也称为用户设备， User
Equipment, 筒称 UE )发送相同内容的多媒体业务数据， 因此可有效节约 空口资源， 提高资源的利用率。 在长期演进（Long Term Evolution, 筒称 LTE )通信系统中开始发送 MBMS业务数据之前， 需要先进行控制面的流 程， 以建立承载和分配空口资源。 在该控制面的流程中， 数据源沿网关、 移动性管理实体（ Mobility Management Entity, 筒称 MME )、 多播协调实体 ( Multi-cell/multicast Coordination Entity, 筒称 MCE )和基站 （ E-UTRAN NodeB , 筒称 eNB )触发控制信令， 具体的： 数据源依次将业务的特性、 要求的资源、 希望发送的地区等信息通知网关； 由网关分配对应的 IP多播 地址并传至 MME和 MCE; 由 MCE分配空口传输资源并通知各个 eNB; eNB根据网关分配的 IP多播地址加入对应的 IP多播组， 并根据 MCE分配 的空口资源信息更新预留的、 用于 MBMS传输的子帧。 当控制面流程结束 后，数据源发出的用户面的 MBMS业务数据流经网关后，通过 IP多播的方 式到达 IP多播组内的各个 eNB , 再由 eNB在空口传输至终端。
在 LTE 中， MBMS 业务数据发送遵循多媒体广播多播业务单频网 ( Multimedia Broadcast multicast service Single Frequency Network, 筒称 MBSFN )传输模式， 也就是说， 一定区域内的多个 eNB需要在相同的子帧 发送完全相同的 MBMS业务数据， 这样， 各个 eNB发送的 MBMS业务数 据到达终端后， 终端无法区分到底是哪个 eNB发出的信号， 多个 eNB发出 的信号可在 UE进行叠加增强， 从而降低了误包率。 MCE会根据实际通信 的控制需要， 暂停某些业务， 即中断发送这些业务的 MBMS业务数据， 以 达到节省空口资源， 减少 eNB耗电的目的。 业务暂停是临时性的； 当需要 进行通信控制的条件不满足时， 需要恢复发送已暂停业务的 MBMS业务数 据。 由于业务暂停和业务恢复是在一个多媒体广播多播业务单频网区域 ( MBSFN Area, 筒称 MBSFA ) 范围内进行的， 而通常一个业务会在多个 MBSFA范围内传输， 因此， 数据源通常继续发送这个业务的 MBMS业务 数据， 以供没有暂停该业务的 MBSFA使用。
MBMS业务数据的控制信令即组播控制信道 （ Multicast Control Channel, 筒称 MCCH ) 消息是循环发送的， MCE只能在某些预先定义好的 时间点修改 MCCH消息，两个可能的修改 MCCH消息的时间点之间的间隔称 为 MCCH修改周期， 相同 MBSFA范围内的各个 eNB , 使用相同的 MCCH修 改周期编号。 当 MCE确定需要在某一个 MBSFA范围暂停或恢复某个业务 时， MCE先通知该 MBSFA范围内的所有 eNB, 从某一个 MCCH修改周期开 始更新 MCCH消息， 保证了相同 MBSFA范围内的所有 eNB同步更新 MCCH 消息。但是， 相同 MBSFA范围内的 eNB如何实现对 MBMS业务数据的暂停 或恢复控制， 现有技术没有相应的解决方案。 发明内容
本发明实施例提供了一种多媒体广播组播业务数据的传输控制方法、 装置和系统， 以实现对多媒体广播组播业务数据的传输控制。
本发明实施例一方面提供了一种多媒体广播组播业务数据的传输控制 方法， 包括：
根据一参考时刻确定暂停或恢复发送多媒体广播组播业务数据的调度 周期；
在所述确定的调度周期， 暂停或恢复发送所述多媒体广播组播业务数 据。
本发明实施例另一方面还提供了另一种多媒体广播组播业务数据的 传输控制方法， 包括：
生成包括参考时刻的指示信息；
向相同多媒体广播多播业务单频网区域范围内的各基站分别发送所述 指示信息， 用于指示所述基站根据所述参考时刻确定暂停或恢复发送多媒 体广播组播业务数据的调度周期。
本发明实施例另一方面还提供了一种基站， 包括：
调度周期确定模块， 用于根据一参考时刻确定暂停或恢复发送多媒体 广播组播业务数据的调度周期；
传输控制模块， 用于在所述确定的调度周期， 暂停或恢复发送所述
MBMS业务数据。
本发明实施例又一方面还提供了一种网络设备， 包括：
生成模块， 用于生成包括参考时刻的指示信息；
发送模块， 用于向相同多媒体广播多播业务单频网区域范围内的各基 站分别发送所述指示信息， 用于指示所述基站根据所述参考时刻确定暂停 或恢复发送多媒体广播组播业务数据的调度周期。
本发明实施例另一方面还提供了一种通信系统， 包括上述基站和上述 网络设备。
本发明实施例提供的多媒体广播组播业务数据的传输控制方法、 装置 和系统中，基站根据预先获取的参考时刻，确定开始暂停或恢复发送 MBMS 业务数据的调度周期， 并在确定的调度周期暂停或恢复发送所述 MBMS业 务数据， 从而实现了基站对 MBMS业务数据的传输控制。 本发明实施例还 有利于相同 MBSFA范围内的各基站， 同步暂停或恢复相同业务的 MBMS 业务数据的发送， 从而有利于降低业务干扰。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对 实施例或现有技术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员 来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的 附图。
图 1为本发明实施例一提供的 MBMS业务数据的传输控制方法的流程 图；
图 2为本发明实施例二提供的 MBMS业务数据的传输控制方法的流程 图；
图 3a为本发明实施例提供的 MBMS业务数据映射到 MCH调度周期的 示意图；
图 3b为本发明实施例提供的 MBMS业务数据映射到 MCH的调度周期 MBSFN子帧的示意图；
图 3c为本发明实施例提供的更新 MCCH消息的 MCCH修改周期的示 意图；
图 3d为本发明实施例提供的暂停发送 MBMS业务数据的情景示例； 图 3e为本发明实施例提供的恢复发送 MBMS业务数据引入干扰的情 景示例；
图 4为本发明实施例三提供的 MBMS业务数据的传输控制方法的信令 交互图；
图 5为本发明实施例三提供的确定 MBMS业务数据传输控制时机的可 选实方式示例一；
图 6为本发明实施例三提供的确定 MBMS业务数据传输控制时机的可 选实方式示例二； 图 7为本发明实施例三提供的确定 MBMS业务数据传输控制时机的可 选实方式示例三；
图 8为本发明实施例四提供的 MBMS业务数据的传输控制方法的信令 交互图；
图 9为本发明实施例四提供的确定 MBMS业务数据传输控制时机的可 选实方式示例；
图 10为本发明实施例五提供的 MBMS业务数据的传输控制方法的信 令交互图；
图 11为本发明实施例六提供的基站的结构示意图；
图 12为本发明实施例七提供的网络设备的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本 发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描 述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有付出创造性劳动前提 下所获得的所有其他实施例， 都属于本发明保护的范围。
本发明以下实施例的序号仅仅为了描述， 不代表实施例的优劣。
图 1为本发明实施例一提供的 MBMS业务数据的传输控制方法的流程 图。 本实施例的执行主体可为基站， 如 eNB等。 如图 1所示， 本实施例所 示的 MBMS业务数据的传输控制方法包括：
步骤 11:根据一参考时刻确定暂停或恢复发送 MBMS业务数据的调度 周期。
基站在确定暂停或恢复发送所述 MBMS业务数据的调度周期之前， 获 取所述参考时刻。 所述参考时刻可由网络侧设备如 MCE直接指示。 或者， 所述参考时刻可由网络侧设备如 MCE间接指示， 例如： MCE指示基站更 新 MCCH消息的 MCCH修改周期， 基站由该 MCCH修改周期确定所述参 考时刻。 在基站获取所述参考时刻之后， 基站从所述参考时刻开始， 沿时 间轴向后确定某个调度周期， 将该调度周期作为暂停或恢复发送 MBMS业 务数据的调度周期。
例如： 基站可从所述参考时刻开始， 向后查找承载所述 MBMS业务数 据的组播信道（Multicast Channel, 筒称 MCH ) 的第 M个调度周期； M为 大于或等于 1 的整数； 确定查找到的所述调度周期， 为暂停或恢复所述 MBMS业务数据的调度周期。 其中， M可为预先确定的某个值， 如通信协 议预先确定 M=l等； 或者， M可为预先配置的某个值， 如通过网管系统， 预先为相同多媒体广播多播业务单频网区域（ Multimedia Broadcast multicast service Single Frequency network Area, 筒称 MBSFA ) 内的各基站配置相同 的 M值， 如将 M配置为 1等。
步骤 12: 在所述确定的调度周期， 暂停或恢复发送所述 MBMS业务数 据。
本实施例提供的 MBMS业务数据的传输控制方法中， 基站根据预先获 取的参考时刻， 确定暂停或恢复发送 MBMS业务数据的调度周期， 并在确 定的调度周期暂停或恢复发送所述 MBMS 业务数据， 从而实现了基站对 MBMS业务数据的传输控制。 由于相同 MBSFA内的各基站可分别采用本 发明实施例提供的相同方法， 确定暂停或恢复发送某业务的 MBMS业务数 据的相同调度周期， 因此可实现这些基站同步暂停或恢复相同业务的 MBMS业务数据的发送， 从而有利于降低业务干扰。
图 2为本发明实施例二提供的 MBMS 业务数据的传输控制方法流程 图。 本实施例的执行主体可为相对于基站而言的网络侧设备， 如 MCE等。 如图 2所示， 本实施例提供的 MBMS业务数据的传输控制方法包括：
步骤 21: 生成包括参考时刻的指示信息。
所述参考时刻用于基站确定暂停或恢复 MBMS业务数据的调度周期， 可包括但不限于： 网络侧设备指定的起始时刻； 或者， MCCH修改周期偏 移值 N, N为大于或等于 1的整数。
步骤 22: 向相同 MBSFA范围内的各基站分别发送所述指示信息， 用 于指示所述基站根据所述参考时刻确定暂停或恢复发送 MBMS业务数据的 调度周期。
相同 MBSFA范围内的各基站接收网络侧设备，如 MCE发送指示信息， 获取该指示信息包括的参考时刻， 并根据该参考时刻确定暂停或恢复发送 MBMS业务数据的调度周期。
例如：所述参考时刻可为网络侧设备指定的起始时刻，如 MCE或 OAM ( Operations , Administration and Maintenance )指定的起始时刻， 贝' J： 相同 MBSFA范围内的各基站可根据所述网络侧设备指示的起始时刻， 确定所述 网络侧设备指示的起始时刻之后承载所述 MBMS业务数据的 MCH的第 M 个调度周期， 为所述暂停或恢复发送 MBMS业务数据的调度周期； M为大 于或等于 1的整数。
又例如： 所述参考时刻可为 MCCH修改周期偏移值 N, N为大于或等 于 1的整数， 则： 相同 MBSFA范围内的各基站， 可确定更新组播控制信道 消息的组播控制信道修改周期后的第 N个组播控制信道修改周期的起始时 刻之后的、 承载所述多媒体广播组播业务数据的组播信道的第 M个调度周 期， 为所述暂停或恢复发送多媒体广播组播业务数据的调度周期； M 为大 于或等于 1的整数。
本实施例提供的 MBMS业务数据的传输控制方法中， 网络设备为相同 MBSFA内的各基站指示确定暂停或恢复发送某业务的 MBMS业务数据调 度周期的参考时刻，因此相同 MBSFA内的各基站可根据该参考时刻确定暂 停或恢复发送该业务的 MBMS业务数据相同的调度周期， 实现了这些基站 同步暂停或恢复相同业务的 MBMS业务数据的发送， 从而有利于降低业务 干扰。
下面结合附图 3a-图 3e,详细说明 MBMS业务数据传输机理，分析 LTE 系统产生业务干扰的可能原因， 并说明采用本发明实施例提供的技术方案 降低业务干扰的技术实质。
图 3a为本发明实施例提供的 MBMS业务数据映射到 MCH的调度周期 的示意图。为了达到 MBSFN发送的目的，可预先确定各业务承载的 MCH, 每个 MCH的每个调度周期包含一个或多个可以用于 MBMS业务数据传输 的子帧， 这类子帧称为 MBSFN子帧。 图 3a中每个无线帧内有三个子帧用 作 MBSFN传输， 分别是 3、 6、 8号子帧， 即 3、 6、 8号子帧为 MBSFN帧。 假设： 图中所示的 MCH承载业务 A、 B和 C的 MBMS业务数据。 MCH的 调度周期从预定的某个时刻开始按时间先后顺序进行编号。 eNB 根据每个 MBMS业务数据包携带的时间戳，将各个 MBMS业务数据包映射到相应的 MCH的调度周期。 例如： 图 3a中业务 A的 360、 361号 MBMS业务数据 包和业务 B的 0、 1号 MBMS业务数据包映射到 MCH的第 M个调度周期； 业务 B的 2、 3号 MBMS业务数据包和业务 C的 0、 1号 MBMS业务数据 包映射到 MCH的第 M+1个调度周期， 其中， M表示 MCH的调度周期的 编号， 为大于或等于 1的整数。
图 3b为本发明实施例提供的 MBMS业务数据映射到 MCH的调度周期 MBSFN子帧的示意图。 在 MCH的一个调度周期内， 各个业务的 MBMS 业务数据按顺序排列到各个 MBSFN子帧内，先按业务排列，这个业务顺序 可由 MCE确定并指示给 eNB; 同一个业务的 MBMS业务数据， 按先后顺 序排列。如果业务顺序是 、 B、 C,则上述例子中的具体传输如图 3b所示。 具体的， 将业务 A的 360号 MBMS业务数据包映射到 3号子帧上； 如果 3 号子帧还有剩余资源， 则继续将 361号 MBMS业务数据包映射到 3号子帧 上； 将 361号 MBMS业务数据包映射到 3号子帧后的剩余内容映射到 6号 子帧； 以此类推。 如果 MCH的当前调度周期包括的 MBSFN子帧资源已用 尽， 但仍未完成某号 MBMS业务数据包的传输， 则 eNB丢弃该 MBMS业 务数据包中 MCH的当前调度周期未传输的业务数据。 MBMS系统中， MCE会根据实际通信需要暂停某些业务， 以达到节省 空口资源， 减少 eNB耗电的目的。 例如： MCE指示各 eNB统计某个业务 的 MBMS业务数据的接收者数量； 如果接收者数量太少， MCE可以暂停 该业务。 又例如： 当优先级较高的业务的 MBMS业务数据开始传输时， 如 果 MCE发现当前空口资源不足， 这时 MCE会暂停某些低优先级的业务。
通常业务暂停是临时性的， 过一段时间之后需要恢复已暂停的业务。 例如： 在暂停某个业务之后的一段时间后， MCE可指示 eNB再次统计这个 业务的 MBMS业务数据的接收者数量， 如果接收者数量回升， MCE可确 定让 eNB重新在空口恢复发送这个业务的 MBMS业务数据。又例如： 当除 已暂停业务之外的其它一个或多个业务的 MBMS业务数据传输结束后， 腾 出了部分空口资源， MCE可指示 eNB恢复发送该业务的 MBMS业务数据。
由于终端是根据 MBMS 业务的控制信令即 MCCH 消息来确定接收 MBMS业务数据，因此 MCCH消息指示的业务信息要与实际发送的 MBMS 约为数据对应。 当 MCE确定暂停或恢复发送某个业务的 MBMS业务数据 时， 基于 MCCH消息的现有更新机制， 保证了各 eNB同步更新 MCCH消 息。 具体的， MCCH消息是循环发送的， MCE只能在某些预先定义好的 时间点更新 MCCH消息，两个可能的更新 MCCH消息的时间点之间的间隔 称为 MCCH修改周期。每个 MCCH修改周期可包括多个 MCCH重复周期， 如图 3c所示， 每个 MCCH修改周期可包括 4个 MCCH重复周期。 eNB在 这 4个 MCCH重复周期内各发送一次 MCCH消息， 且这 4个 MCCH重复 周期内发送的 MCCH消息的内容相同； eNB只有在下一 MCCH修改周期 的起始时刻才可能修改 MCCH消息的内容， 即更新 MCCH消息。 LTE中对 每个 MCCH修改周期进行编号， MBSFN内各个 eNB都在相同的起始点对 MCCH修改周期进行编号，所以同一时刻，相同 MBSFA范围内的各个 eNB , 使用相同的 MCCH修改周期编号。 当 MCE确定需要在某一个 MBSFA内 暂停或恢复某个业务时， MCE先通知该 MBSFA内的所有 eNB, 从某一个 MCCH修改周期开始更新 MCCH消息。相同 MBSFA范围内的所有 eNB在 同一个 MCCH修改周期更新 MCCH消息， 以保证 MCCH消息中指示的业 务信息， 与空口实际传输的 MBMS数据一致。
虽然相同 MBSFA内的各 eNB在相同 MCCH修改周期同步更新 MCCH 消息， 但由于现有技术没有用于确定相应 MBMS业务数据的传输控制时机 的统一方法，因此 eNB通常随机确定相应 MBMS业务数据的传输控制时机， 从而可能造成业务干扰， 具体举例说明如下：
图 3d为本发明实施例应用场景提供的暂停发送 MBMS业务数据的情 景示例。 假设： MCE确定在 MBSFA 2范围内暂停业务 A, 则 MCE指示 MBSFA 2范围内的所有 eNB,如 eNB21和 eNB22。具体如图 3d所示， MCE 指示 MBSFA 2范围内的所有 eNB, 如 eNB21和 eNB22, 在 81号 MCCH 修改周期的起始时刻开始更新 MCCH消息：将业务 A对应的控制信息从原 MCCH消息中删除。 eNB21和 eNB22同步更新 MCCH消息， 但可能在不 同的调度周期开始暂停发送该业务 A的数据包。
图 3e为本发明实施例应用场景提供的恢复发送 MBMS业务数据引入 干扰的情景示例。 如果 MCE确定在 MBSFA 2范围内恢复业务 A, 则 MCE 指示 MBSFA 2范围内的所有 eNB ,如 eNB21和 eNB22在相同编号的 MCCH 修改周期的起始时刻开始更新 MCCH 消息。 eNB21 和 eNB22 同步更新 MCCH消息，但可能在不同的调度周期开始恢复发送该业务的 MBMS业务 数据。 例如： eNB21随机确定在 MCH的第 M个调度周期恢复发送业务 A 的数据包， 则 eNB21在 MCH的第 M个调度周期发送的 MBMS业务数据 为： 业务 A的 360、 361号数据包， 以及业务 B的 0、 1号数据包； eNB22 随机确定在 MCH的第 M+1个调度周期恢复发送该业务的 MBMS数据， eNB22在 MCH的第 M+1个调度周期发送的 MBMS数据为： 业务 B的 0、 1号数据包。 可见， 在 MCH的第 M个调度周期， eNB21和 eNB22在空口 上发送的数据包不同。由于 MBSFN传输模式必须保证相同 MBSFA范围内 所有的 eNB传输内容相同，而 eNB21和 eNB22在空口上发送不同的 MBMS 业务数据，因此会造成业务干扰。同理， MBMS业务暂停时，当相同 MBSFA 范围内的不同 eNB,从不同的调度周期开始暂停发送该业务的 MBMS业务 数据， 会导致各个 eNB在相同调度周期在空口上发送不同内容， 也会导致 业务干扰。
本实施例提供的 MBMS数据的传输控制方法中， eNB以预先获取的参 考时刻为依据， 确定 MBMS业务数据传输控制的时机。 由于相同 MBSFA 范围内的各 eNB采用相同方法，确定的 MBMS业务数据传输控制的时机相 同， 因此， 可实现相同 MBSFA范围内的各 eNB同步暂停或恢复发送相同 的 MBMS业务数据， 从而降低了业务干扰。
图 4为本发明实施例三提供的 MBMS业务数据的传输控制方法的信令 交互图。本实施例中的参考时刻为： 更新 MCCH消息的 MCCH修改周期的 某个时刻。 如图 4所示， 本实施例提供的方法包括：
步骤 41: MCE确定暂停或恢复业务 A, 生成 MBMS调度信息。
如果 MCE确定暂停业务 A, 则 MCE在 MCCH消息中删除业务 A的 控制信令， 以更新 MCCH消息； 如果 MCE确定恢复已暂停的业务 A, 则 在 MCCH消息中增加业务 A的控制信令， 以更新 MCCH消息。
MBMS调度信息包括： 参数 "MCCH更新的修改周期"， 用于指示更 新 MCCH消息的 MCCH修改周期，所述 MCCH消息包括与 MBMS业务数 据相应的控制信令， 如： 暂停或恢复的 MBMS业务的信息。
步骤 42: MCE向 eNB发送 MBMS调度信息， 该 MBMS调度信息包 括参数 "MCCH更新的修改周期"。
步骤 43: eNB接收 MBMS调度信息， 并在该 MBMS调度信息包括的 参数 "MCCH更新的修改周期" 对应的 MCCH修改周期， 更新 MCCH消 eNB在参数 "MCCH更新的修改周期"对应的 MCCH修改周期接收到 MCCH消息， 将新接收到的 MCCH消息与自身已存储的 MCCH消息（称 为：原 MCCH消息）进行比较，如果新接收到的 MCCH消息相对于原 MCCH 消息缺少了业务 A的控制信令， 则 eNB获知 MCE暂停了业务 A; 如果新 接收到的 MCCH消息相对于原 MCCH消息增加了业务 A的控制信令， 则 eNB获知 MCE恢复了业务 A。
步骤 44: eNB从更新 MCCH消息的 MCCH修改周期的某个时刻开 始， 确定承载所述 MBMS业务数据的 MCH的第 1个调度周期为暂停或恢 复所述 MBMS业务数据的调度周期。
LTE系统中， 业务与 MCH之间预先确定有对应关系， 某个业务如业务 A的 MBMS数据， 只能在业务 A对应的 MCH上传输。 下面结合图 5-图 8, 对 eNB根据从更新 MCCH消息的 MCCH修改周期不同时刻开始， 确定开 始暂停或恢复相应 MBMS业务数据的调度周期的可选实施方式， 进行详细 说明。其中， 为便于描述，在图 5-图 7中仅以 3个 MCH, 即 MCH1、 MCH2 和 MCH3为例进行说明；该例子不应理解为对本发明技术方案实质的限制。
实施方式 1 : 从更新所述 MCCH消息的 MCCH修改周期的起始时刻 开始， 向后查找承载所述 MBMS业务数据的 MCH的第 1个调度周期； 确 定查找到的调度周期， 为暂停或恢复所述 MBMS业务数据的调度周期； 具 体如图 5所示。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH1 , 则： eNB 从更新 MCCH 消息的 MCCH修改周期的起始时刻开始， 向后查找 MCH1的第 1个调度周期，即对应图 5所示的时机 1；并确定查找到的 MCH1 的第 1个调度周期，为暂停或恢复发送业务 A的 MBMS业务数据的调度周 期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH2, 则： eNB 从更新 MCCH 消息的 MCCH修改周期的起始时刻开始， 向后查找 MCH2的第 1个调度周期，即对应图 5所示的时机 2;并确定查找到的 MCH2 的第 1个调度周期，为暂停或恢复发送业务 A的 MBMS业务数据的调度周 期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH3, 则： eNB 从更新 MCCH 消息的 MCCH修改周期的起始时刻开始， 向后查找 MCH3的第 1个调度周期，即对应图 5所示的时机 3;并确定查找到的 MCH3 的第 1个调度周期， 为暂停或恢复发送业务 A的 MBMS数据的调度周期。
实施方式 2: 从更新所述 MCCH消息的 MCCH 爹改周期内的、 所述 MCCH消息的第一次传输起始时刻开始，向后查找承载所述 MBMS业务数 据的 MCH的第 1个调度周期； 确定查找到的调度周期， 为暂停或恢复所述 MBMS业务数据的调度周期。
每个 MCCH修改周期可包括 4个 MCCH重复周期， 不同 MCCH重 复周期传输的 MCCH消息的内容相同。 MCCH消息可能在每个 MCCH 重复周期的首个或非首个 MBSFN子帧发送。每个 MCCH重复周期可包 括 4个公共周期， 每个公共周期包括： MCH1、 MCH2和 MCH3的一个 资源块。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH1 , 则： eNB从更新 MCCH消息的 MCCH修改周期的第 1个重复周期内传输 MCCH 消息的时刻开始， 向后查找 MCH1的第 1个调度周期， 即对应图 6所示的 时机 1; 并确定查找到的 MCH1的第 1个调度周期， 为暂停或恢复发送业 务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH2, 则： eNB从更新 MCCH消息的 MCCH修改周期的第 1个重复周期内传输 MCCH 消息的时刻开始， 向后查找 MCH2的第 1个调度周期， 即对应图 6所示的 时机 2; 并确定查找到的 MCH2的第 1个调度周期， 为暂停或恢复发送业 务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS数据的 MCH为 MCH3, 则： eNB 从更新 MCCH消息的 MCCH修改周期的第 1个重复周期内传输 MCCH消 息的时刻开始， 向后查找 MCH3的第 1个调度周期， 即对应图 6所示的时 机 3;并确定查找到的 MCH3的第 1个调度周期，为暂停或恢复发送业务 A 的 MBMS业务数据的调度周期。
实施方式 3: 从更新所述 MCCH消息的 MCCH修改周期内的第 2个 MCCH重复周期的起始时刻开始， 向后查找承载所述 MBMS 业务数据的 MCH的第 1个调度周期；确定查找到的调度周期，为暂停或恢复所述 MBMS 业务数据的调度周期。
每个 MCCH修改周期可包括 4个 MCCH重复周期， 不同 MCCH重 复周期传输的 MCCH消息的内容相同。
如果预先确定支持承载 A的 MBMS业务数据的 MCH为 MCH1 , 则： eNB从更新 MCCH消息的 MCCH修改周期内的第 2个重复周期的起始时 刻开始， 向后查找 MCH1的第 1个调度周期， 即对应图 7所示的时机 1; 并确定查找到的 MCH1 的第 1 个调度周期， 为暂停或恢复发送业务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH2, 则： eNB从更新 MCCH消息的 MCCH修改周期内的第 2个重复周期的起始时 刻开始， 向后查找 MCH2的第 1个调度周期， 即对应图 7所示的时机 2; 并确定查找到的 MCH2的第 1 个调度周期， 为暂停或恢复发送业务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH3, 则： eNB从更新 MCCH消息的 MCCH修改周期内的第 2个重复周期的起始时 刻开始， 向后查找 MCH3的第 1个调度周期， 即对应图 7所示的时机 3; 并确定查找到的 MCH3 的第 1 个调度周期， 为暂停或恢复发送业务 A的 MBMS业务数据的调度周期。
步骤 45: eNB在步骤 44确定的调度周期， 暂停或恢复发送业务 A的 MBMS业务数据。
无论 eNB在步骤 44确定的调度周期是否暂停或恢复向 UE发送业务 A 的 MBMS业务数据， 数据源都会经网关 （GateWay, 筒称 GW )持续下发 业务 A的 MBMS业务数据。 当 eNB暂停发送某个业务如业务 A的 MBMS 业务数据时， eNB可退出 IP多播组，等 MCE指示恢复业务 A时再次加入 相应 IP多播组， 这样， eNB就不会在该 MBMS业务的暂停期间收到这个 MBMS业务的数据包； 或者， eNB可不退出 IP多播组， 这样， eNB在 MCE 指示恢复业务 A时就不需要再次加入 IP多播组， 如果采用这种方法， eNB 在业务 A的暂停期间会继续收到业务 A的 MBMS数据， eNB将接收到的 业务 A的 MBMS数据丢弃即可。
本实施例由于相同 MBSFA内的各 eNB根据更新 MCCH消息的 MCCH 修改周期的某个相同时刻， 确定开始进行 MBMS业务数据传输控制的相同 调度周期，在确定的调度周期暂停或恢复发送相同业务的 MBMS业务数据， 因此可实现 eNB同步暂停或恢复相同业务的 MBMS业务数据的发送，从而 降低了业务干扰。
图 8为本发明实施例四提供的 MBMS业务数据的传输控制方法的信令 交互图。本实施例中的参考时刻为： 更新 MCCH消息的 MCCH修改周期后 的第 N个 MCCH修改周期的起始时刻， N表示 MCCH修改周期偏移值， 为大于或等于 1的整数。 如图 8所示， 本实施例提供的方法包括：
步骤 81: MCE确定暂停或恢复业务 A, 生成 MBMS调度信息。
步骤 82: MCE向 eNB发送 MBMS调度信息， 该 MBMS调度信息包 括参数 "MCCH更新的修改周期"。
步骤 83: eNB接收 MBMS调度信息， 并在该 MBMS调度信息包括的 参数 "MCCH更新的修改周期" 对应的 MCCH修改周期， 更新 MCCH消 步骤 84: eNB从更新 MCCH消息的 MCCH修改周期后的第 N个 MCCH 爹改周期的起始时刻开始， 确定 7 载所述 MBMS业务数据的 MCH 的第 1个调度周期为暂停或恢复所述 MBMS业务数据的调度周期； 其中， N表示 MCCH修改周期偏移值， 为大于或等于 1的整数。
eNB在确定开始暂停或恢复所述 MBMS业务数据的调度周期时，预先 获取 MCCH修改周期偏移值^相同 MBSFA范围内的各 eNB配置的调度 周期偏移值 N相同。
可选的， MCCH修改周期偏移值 N可预先配置在 eNB上。或者， MCCH 爹改周期偏移值 N可由网络侧设备， 如 MCE指示给 eNB , 网络侧设备如 MCE向 eNB指示 MCCH修改周期偏移值 N的具体方式不受限制， 例如： MCCH修改周期偏移值 N可携带在上述步骤 82所述的 MBMS调度信息中 指示给 eNB; 或者， MCCH修改周期偏移值 N, 可携带在除 MBMS调度信 息之外的、 MCE与 eNB之间的其他 M2接口消息，如初始配置消息、 MBMS 业务开始 /结束 /更新消息等。
不妨以 N= 1为例进行说明：
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH1 , 则 eNB: 从更新 MCCH消息的 MCCH修改周期后的第 1个 MCCH修改周期 的起始时刻开始， 向后查找 MCH1的第 1个调度周期， 即对应图 9所示的 时机 1; 确定查找到的 MCH1的第 1个调度周期， 为暂停或恢复业务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH2, 则： eNB从更新 MCCH消息的 MCCH修改周期后的第 1个 MCCH修改周期的 起始时刻开始， 向后查找 MCH2的第 1个调度周期， 即对应图 9所示的时 机 2; 确定查找到的 MCH2的第 1 个调度周期， 为暂停或恢复业务 A的 MBMS业务数据的调度周期。
如果预先确定承载业务 A的 MBMS业务数据的 MCH为 MCH3, 则： eNB从更新 MCCH消息的 MCCH修改周期后的第 1个 MCCH修改周期的 起始时刻开始， 向后查找 MCH3的第 1个调度周期， 即对应图 9所示的时 机 3; 确定查找到的 MCH3 的第 1 个调度周期， 为暂停或恢复业务 A的 MBMS业务数据的调度周期。
对于 MCCH修改周期偏移量 N为大于或等于 的整数的实现方式，与 上述 N=l时的技术方案相似， 在此不再赘述。
步骤 85: eNB在步骤 84确定的调度周期， 暂停或恢复发送业务 A的 MBMS业务数据。
本实施例由于相同 MBSFA内的各 eNB采用相同的参考时刻， 确定开 始进行 MBMS业务数据传输控制的相同调度周期， 在确定的调度周期暂停 或恢复发送相同业务的 MBMS业务数据，因此可实现 eNB同步暂停或恢复 相同业务的 MBMS业务数据的发送， 从而降低了业务干扰。
图 10为本发明实施例五提供的 MBMS业务数据的传输控制方法的信 令交互图。 本实施例中的参考时刻为： 网络侧设备指示的起始时刻。 如图 10所示， 本实施例提供的方法包括：
步骤 101: MCE确定暂停或恢复业务 A, 生成 MBMS调度信息。 步骤 102: MCE向 eNB发送 MBMS调度信息， 该 MBMS调度信息包 括参数 "MCCH更新的修改周期"。
步骤 103: eNB接收 MBMS调度信息， 并在该 MBMS调度信息包括的 参数 "MCCH更新的修改周期" 对应的 MCCH修改周期， 更新 MCCH消 步骤 104: eNB从网络侧设备指示的起始时刻开始， 确定承载所述 MBMS业务数据的 MCH的第 1个调度周期为暂停或恢复所述 MBMS业务 数据的调度周期。
可选的， eNB在确定开始暂停或恢复所述 MBMS业务数据的调度周期 之前， 可接收包括所述参考时刻的指示信息， 所述参考时刻可包括网络侧 设备指示的起始时刻， 如 MCE指示的起始时刻。 eNB根据网络侧设备指示 的起始时刻， 如 MCE指示的起始时刻确定暂停或恢复所述 MBMS业务数 据的调度周期。 相同 MBSFA范围内的各 eNB获取的所述网络侧设备， 如 MCE指示的起始时刻相同。
网络侧设备， 如 MCE指示的起始时刻可携带在上述步骤 102所述的 MBMS调度信息中指示给 eNB; 或者， 网络侧设备， 如 MCE指示的起始 时刻， 可携带在除 MBMS调度信息之外的、 MCE与 eNB之间的其他 M2 接口消息， 如初始配置消息、 MBMS业务开始 /结束 /更新消息等。
步骤 105: eNB在步骤 104确定的调度周期， 暂停或恢复发送业务 A 的 MBMS业务数据。
本实施例由于相同 MBSFA内的各 eNB根据网络侧设备指示的起始时 刻， 确定开始进行 MBMS业务数据传输控制的相同调度周期， 在确定的调 度周期暂停或恢复发送相同业务的 MBMS业务数据，因此可实现 eNB同步 暂停或恢复相同业务的 MBMS业务数据的发送， 从而降低了业务干扰。
图 11为本发明实施例六提供的基站的结构示意图。 如图 11所示的基 站包括： 调度周期确定模块 111和传输控制模块 112。
调度周期确定模块 111 可用于根据一参考时刻， 确定暂停或恢复发送 MBMS业务数据的调度周期。
传输控制模块 112可用于在所述确定的调度周期， 暂停或恢复发送所 述 MBMS业务数据。
在上述技术方案的基础上， 可选的， 调度周期确定模块 111 可具体用 于根据所述参考时刻， 确定所述参考时刻之后承载所述多媒体广播组播业 务数据的组播信道的第 M个调度周期， 为所述暂停或恢复发送多媒体广播 组播业务数据的调度周期； M为大于或等于 1的整数。
可选的，上述参考时刻可包括： 更新 MCCH消息的 MCCH修改周期的 起始时刻。 该情形下， 调度周期确定模块 111可具体用于从更新 MCCH消 息的 MCCH ^ίι爹改周期的起始时刻开始， 确定^载所述 MBMS业务数据的 MCH的第 M个调度周期为暂停或恢复所述 MBMS业务数据的调度周期。 所述 MCCH消息包括与所述 MBMS业务数据相应的控制信令。
可选的，上述参考时刻可包括： 更新 MCCH消息的 MCCH修改周期内 的、 第 1次传输所述 MCCH消息的起始时刻。 该情形下， 调度周期确定模 块 111可具体用于从更新 MCCH消息的 MCCH修改周期内的第 1次传输所 述 MCCH消息的起始时刻开始，确定 7 载所述 MBMS业务数据的 MCH的 第 M个调度周期为暂停或恢复所述 MBMS业务数据的调度周期。
可选的，上述参考时刻可包括： 更新 MCCH消息的 MCCH修改周期内 的第 2个 MCCH重复周期的起始时刻。 该情形下， 调度周期确定模块 111 可具体用于从更新 MCCH消息的 MCCH修改周期内的第 2个 MCCH重复 周期的起始时刻开始，确定承载所述 MBMS业务数据的 MCH的第 M个调 度周期为暂停或恢复所述 MBMS业务数据的调度周期。
可选的，上述参考时刻可包括： 更新 MCCH消息的 MCCH修改周期后 的第 N个 MCCH修改周期的起始时刻， N表示 MCCH修改周期偏移值， 为大于或等于 1的整数。 该情形下， 调度周期确定模块 111可具体用于从 更新 MCCH消息的 MCCH修改周期后的第 N个 MCCH修改周期的起始时 刻开始，确定承载所述 MBMS业务数据的 MCH的第 M个调度周期为暂停 或恢复所述 MBMS业务数据的调度周期。 进一步的， 基站还可包括： 获取 模块 113。 获取模块 113可用于预先配置所述 MCCH修改周期偏移值； 或 者， 根据接收到的包括所述 MCCH修改周期偏移值的指示信息， 获取所述 MCCH修改周期偏移值。
可选的， 上述参考时刻可包括： 网络侧设备指示的起始时刻， 如 MCE 指示的起始时刻。 该情形下， 所述基站还可包括： 获取模块 113。 获取模块 用于接收包括所述参考时刻的指示信息； 所述参考时刻包括： 网络侧设备 指示的起始时刻。 调度周期确定模块 111可具体用于从网络侧设备如 MCE 指示的起始时刻开始，确定承载所述 MBMS业务数据的 MCH的第 M个调 度周期为暂停或恢复所述 MBMS业务数据的调度周期； M为大于或等于 1 的整数。
本实施例提供的基站可根据预先获取的参考时刻， 确定暂停或恢复发 送 MBMS业务数据的调度周期， 并在确定的调度周期暂停或恢复发送所述 MBMS业务数据，从而实现了基站对 MBMS业务数据的传输控制。 由于相 同 MBSFA内的各基站可分别采用本发明实施例提供的相同方法，确定开始 暂停或恢复发送某业务的 MBMS业务数据的相同调度周期， 因此可实现这 些基站同步暂停或恢复相同业务的 MBMS业务数据的发送， 从而有利于降 低业务干扰。 本实施例提供的基站的工作机理， 可参见图 1、 图 4-图 10对 应实施例的相应记载， 在此不再赘述。
图 12为本发明实施例七提供的网络设备的结构示意图。 如图 12所示 的网络包括： 生成模块 121和发送模块 122。
生成模块 121 可用于生成包括参考时刻的指示信息。 所述参考时刻用 于基站确定暂停或恢复 MBMS业务数据的调度周期， 可包括但不限于： 网 络侧设备指定的起始时刻， 以供所述基站根据所述网络侧设备指示的起始 时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周期； 或 者， MCCH修改周期偏移值 N, 以供所述基站根据更新组播控制信道消息 的组播控制信道修改周期后的第 N个组播控制信道修改周期的起始时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周期； 其中， N 为大于或等于 1的整数。 发送模块 122可用于向相同多媒体广播多播业务 单频网区域范围内的各基站分别发送所述指示信息， 用于指示所述基站根 据所述参考时刻确定暂停或恢复发送多媒体广播组播业务数据的调度周 期。
本实施例提供的网络设备为相同 MBSFA 内的各基站指示确定暂停或 恢复发送某业务的 MBMS业务数据调度周期的参考时刻，因此相同 MBSFA 内的各基站可根据该参考时刻确定暂停或恢复发送该业务的 MBMS业务数 据相同的调度周期， 实现了这些基站同步暂停或恢复相同业务的 MBMS业 务数据的发送， 从而有利于降低业务干扰。 本实施例提供的网络设备可为 但不限于 MCE, 其工作机理， 可参见图 2、 图 4-图 10对应实施例的相应记 载， 在此不再赘述。
进一步的， 本发明实施例还提供了一种通信系统， 该通信系统至少包 括如图 11所述的基站和如图 12所述的网络设备， 基站和网络设备通信连 接。 其中， 基站的工作机理， 可参见图 1、 图 4-图 10对应实施例的相应记 载， 网络设备的工作机理， 可参见图 2、 图 4-图 10对应实施例的相应记载， 在此不再赘述。
本领域普通技术人员可以理解： 附图只是一个实施例的示意图， 附图 中的模块或流程并不一定是实施本发明所必须的。
本领域普通技术人员可以理解： 实施例中的装置中的模块可以按照实 施例描述分布于实施例的装置中， 也可以进行相应变化位于不同于本实施 例的一个或多个装置中。 上述实施例的模块可以合并为一个模块， 也可以 进一步拆分成多个子模块。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修 改， 或者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、一种多媒体广播组播业务数据的传输控制方法， 其特征在于， 包括： 根据一参考时刻确定暂停或恢复发送多媒体广播组播业务数据的调度 周期；
在所述确定的调度周期， 暂停或恢复发送所述多媒体广播组播业务数 据。
2、 根据权利要求 1所述的方法， 其特征在于， 根据所述参考时刻， 确 定暂停或恢复发送多媒体广播组播业务数据的调度周期， 包括：
根据所述参考时刻， 确定所述参考时刻之后承载所述多媒体广播组播 业务数据的组播信道的第 M个调度周期， 为所述暂停或恢复发送多媒体广 播组播业务数据的调度周期； M为大于或等于 1的整数。
3、根据权利要求 1或 2所述的方法，其特征在于， 所述参考时刻包括： 更新组播控制信道消息的组播控制信道修改周期的起始时刻； 或者 更新组播控制信道消息的组播控制信道修改周期内的第 1 次传输所述 组播控制信道消息的起始时刻； 或者
更新组播控制信道消息的组播控制信道修改周期内的第 2个组播控制 信道重复周期的起始时刻。
4、根据权利要求 1或 2所述的方法，其特征在于， 所述参考时刻包括： 更新组播控制信道消息的组播控制信道修改周期后的第 N个组播控制 信道修改周期的起始时刻， N表示组播控制信道修改周期偏移值， 为大于 或等于 1的整数。
5、 根据权利要求 4所述的方法， 其特征在于， 在确定所述暂停或恢复 发送多媒体广播组播业务数据的调度周期之前， 所述方法还包括：
预先配置所述组播控制信道修改周期偏移值；
或者，
根据接收到的包括所述组播控制信道修改周期偏移值的指示信息， 获 取所述组播控制信道修改周期偏移值。
6、 根据权利要求 1所述的方法， 其特征在于：
在确定所述暂停或恢复发送多媒体广播组播业务数据的调度周期之 前， 所述方法还包括： 接收包括所述参考时刻的指示信息； 其中， 所述参 考时刻包括： 网络侧设备指示的起始时刻；
根据所述参考时刻， 确定暂停或恢复发送多媒体广播组播业务数据的 调度周期， 包括： 根据所述网络侧设备指示的起始时刻， 确定所述网络侧 设备指示的起始时刻之后承载所述多媒体广播组播业务数据的组播信道的 第 M个调度周期， 为所述暂停或恢复发送多媒体广播组播业务数据的调度 周期； M为大于或等于 1的整数。
7、一种多媒体广播组播业务数据的传输控制方法， 其特征在于， 包括： 生成包括参考时刻的指示信息；
向相同多媒体广播多播业务单频网区域范围内的各基站分别发送所述 指示信息， 用于指示所述基站根据所述参考时刻确定暂停或恢复发送多媒 体广播组播业务数据的调度周期。
8、 根据权利要求 7所述的方法， 其特征在于， 所述参考时刻包括： 网络侧设备指定的起始时刻， 以供所述基站根据所述网络侧设备指示 的起始时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周 期；
或者，
组播控制信道修改周期偏移值 N, 以供所述基站根据更新组播控制信 道消息的组播控制信道修改周期后的第 N个组播控制信道修改周期的起始 时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周期； 其 中， N为大于或等于 1的整数。
9、 一种基站， 其特征在于， 包括：
调度周期确定模块， 用于根据一参考时刻确定暂停或恢复发送多媒体 广播组播业务数据的调度周期；
传输控制模块， 用于在所述确定的调度周期， 暂停或恢复发送所述
MBMS业务数据。
10、 根据权利要求 9所述的基站， 其特征在于，
所述调度周期确定模块， 具体用于根据所述参考时刻， 确定所述参考 时刻之后承载所述多媒体广播组播业务数据的组播信道的第 M 个调度周 期， 为所述暂停或恢复发送多媒体广播组播业务数据的调度周期； M 为大 于或等于 1的整数。
11、 根据权利要求 9或 10所述的基站， 其特征在于， 所述参考时刻包 括：
更新组播控制信道消息的组播控制信道修改周期的起始时刻； 或者 更新组播控制信道消息的组播控制信道修改周期内的第 1 次传输所述 组播控制信道消息的起始时刻； 或者
更新组播控制信道消息的组播控制信道修改周期内的第 2个组播控制 信道重复周期的起始时刻。
12、 根据权利要求 9或 10所述的基站， 其特征在于， 所述参考时刻包 括：
更新组播控制信道消息的组播控制信道修改周期后的第 N个组播控制 信道修改周期的起始时刻， N表示组播控制信道修改周期偏移值， 为大于 或等于 1的整数。
13、 根据权利要求 12所述的基站， 其特征在于， 所述基站还包括： 获取模块， 用于预先配置所述组播控制信道修改周期偏移值； 或者， 根据接收到的包括所述组播控制信道修改周期偏移值的指示信息， 获取所 述组播控制信道修改周期偏移值。
14、 根据权利要求 9所述的基站， 其特征在于， 所述基站还包括： 获取模块， 用于接收包括所述参考时刻的指示信息； 所述参考时刻包 括： 网络侧设备指示的起始时刻；
所述调度周期确定模块， 具体用于根据所述网络侧设备指示的起始时 刻， 确定所述网络侧设备指示的起始时刻之后承载所述多媒体广播组播业 务数据的组播信道的第 M个调度周期， 为所述暂停或恢复发送多媒体广播 组播业务数据的调度周期； M为大于或等于 1的整数。
15、 一种网络设备， 其特征在于， 包括：
生成模块， 用于生成包括参考时刻的指示信息；
发送模块， 用于向相同多媒体广播多播业务单频网区域范围内的各基 站分别发送所述指示信息， 用于指示所述基站根据所述参考时刻确定暂停 或恢复发送多媒体广播组播业务数据的调度周期。
16、 根据权利要求 15所述的网络设备， 其特征在于， 所述参考时刻包 括：
网络侧设备指定的起始时刻， 以供所述基站根据所述网络侧设备指示 的起始时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周 期；
或者，
组播控制信道修改周期偏移值 N, 以供所述基站根据更新组播控制信 道消息的组播控制信道修改周期后的第 N个组播控制信道修改周期的起始 时刻， 确定所述暂停或恢复发送多媒体广播组播业务数据的调度周期； 其 中， N为大于或等于 1的整数。
17、 一种通信系统， 其特征在于， 包括： 如权利要求 9-14任一所述的 基站， 以及如权利要求 15或 16所述的网络设备。
PCT/CN2012/079808 2011-08-08 2012-08-08 多媒体广播组播业务数据的传输控制方法、装置和系统 WO2013020503A1 (zh)

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