WO2018059562A1 - 多播业务的业务信息、业务信息变更通知方法及装置 - Google Patents

多播业务的业务信息、业务信息变更通知方法及装置 Download PDF

Info

Publication number
WO2018059562A1
WO2018059562A1 PCT/CN2017/104572 CN2017104572W WO2018059562A1 WO 2018059562 A1 WO2018059562 A1 WO 2018059562A1 CN 2017104572 W CN2017104572 W CN 2017104572W WO 2018059562 A1 WO2018059562 A1 WO 2018059562A1
Authority
WO
WIPO (PCT)
Prior art keywords
mtch
mcch
service
message
information
Prior art date
Application number
PCT/CN2017/104572
Other languages
English (en)
French (fr)
Inventor
艾建勋
戴博
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US16/336,776 priority Critical patent/US10952034B2/en
Publication of WO2018059562A1 publication Critical patent/WO2018059562A1/zh

Links

Images

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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a service information, a service information change notification method, and a device for a multicast service.
  • SC-PTM single cell point to multipoint
  • MBMS Multimedia Broadcast Multicast Service
  • SC-MCCH Single Cell-Multicast Control Channel
  • SC-MCCH Single Cell-Multicast Traffic Channel
  • the main purpose of introducing SC-PTM in the Narrow Band-internet of things is to provide an efficient software update transmission mechanism for a large number of IoT terminals.
  • Periodic software updates can be used for non-emergency update requirements, and sudden software updates are more suitable for situations where software needs to be updated as soon as possible, for example, to correct Security vulnerabilities in software, etc., obviously, the time of sudden software updates is uncertain.
  • SC-MCCH and SC-MTCH can be carried and scheduled to be transmitted in different carriers.
  • the capability of the UE is limited by the cost, and the channel signals on different carriers cannot be received at the same time, thus limiting the scheduling of the base station: that is, when scheduling the change notification of the SC-MCCH or the SC-MCCH message, the other carriers are The SC-MTCH cannot be scheduled at the same time. Otherwise, the UE cannot receive the SC-MCCH change notification or the SC-MTCH data, thereby causing the problem that some data may be missed or the SC-MCCH change cannot be received.
  • Embodiments of the present disclosure provide a service information and a service information change notification method and apparatus for a multicast service, which are applicable to Notification of single cell multicast service information and SC-MCCH message change of NB-IoT and eMTC.
  • the present disclosure provides the following technical solutions.
  • a service information notification method for a multicast service including:
  • the access network element sends a multicast service information update indication to the user equipment UE;
  • the access network element indicates the service information of the multicast service to the UE.
  • the access network element indicating the service information of the multicast service to the UE includes at least one of the following manners:
  • the access network element indicates the service information of the multicast service in the system information block
  • the access network element indicates the service information of the multicast service in the single cell multicast control channel SC-MCCH message
  • the access network element indicates the service information of the multicast service in the paging message.
  • the sending network element sends the multicast service information update indication to the UE, including one or more of the following situations:
  • the service identification information is a temporary multicast group identifier TMGI, or is calculated or transformed by the TMGI according to a first predetermined rule.
  • Information including: low N bits in TMGI, high N bits of TMGI, or a result of dividing all bits of TMGI into N bits and performing logical exclusive OR operation between groups;
  • the service area identification information is a service area identifier SAI, or is calculated or transformed according to a second predetermined rule by the SAI.
  • the information includes: low N bits in the SAI, high N bits of the SAI, or a result of dividing the SAI all bits into N bits and performing a logical XOR operation between the groups.
  • the service information of the multicast service indicated by the network element of the access network includes: at least one of TMGI and SAI of the multicast service.
  • the service information further includes at least one of a start and an end time of the multicast service, and if the service information includes an SAI, the service information further includes a sending station.
  • the frequency information of the multicast service if the service information includes a TMGI, the service information further includes at least one of a start and an end time of the multicast service, and if the service information includes an SAI, the service information further includes a sending station. The frequency information of the multicast service.
  • the method for notifying the service information further includes:
  • the access network element indicates the scheduling information of the multicast service in the SC-MCCH message.
  • the method for notifying the service information further includes:
  • the access network element updates the system information block including the service information of the multicast service before or after transmitting the multicast service information update indication to the UE.
  • the access network element before the sending network element sends the multicast service information update indication to the UE, the access network element further includes:
  • the access network element receives the control plane message multimedia broadcast multicast MBMS session start request sent by the core network element; the control plane message is used to indicate the access network element, and the control plane is completed by using a paging mechanism.
  • the service information update notification of the MBMS service indicated in the message is used to indicate the access network element, and the control plane is completed by using a paging mechanism.
  • the access network element when the access network element indicates the service information of the multicast service in the system information block, the access network The element sends a multicast service information update indication to the UE according to one of the following manners, and indicates the service information of the multicast service to the UE:
  • the access network element sends the multicast service information update indication in a paging occasion in a previous maximum enhanced discontinuous reception eDRX cycle, and starts updating the system information block in the next largest eDRX cycle thereafter.
  • the access network element sends the multicast service information update indication in a paging occasion within a maximum eDRX cycle, and updates the system information block sent by the system message before sending the multicast service information update indication
  • the updated system information block includes the service information S2 of the multicast service.
  • the access network element when the access network element indicates the service information of the multicast service in the single cell multicast control channel SC-MCCH message, the access network element sends the multicast service information to the UE according to one of the following manners: Updating the indication, and indicating to the UE the service information of the multicast service:
  • the access network element sends the multicast service information update indication in a paging occasion in the previous largest eDRX cycle, and starts to update the SC-MCCH message in the next largest eDRX cycle, the updated SC-MCCH
  • the access network element transmits the multicast service information update indication in a paging occasion within a maximum eDRX cycle, and prior thereto, updates the SC-MCCH message SM-1 transmitted through the SC-MCCH channel, the SC The MCCH message SM-1 contains the service information S2 of the multicast service.
  • a service information notification method for a multicast service including:
  • the user equipment UE receives the multicast service information update indication and the service information of the multicast service from the access network element;
  • the UE receives the multicast service from the access network element according to the service information of the multicast service.
  • the receiving, by the UE, the service information of the multicast service from the access network element includes at least one of the following manners:
  • the UE receives the service information of the multicast service in the paging message.
  • the receiving, by the UE, the multicast service information update indication from the access network network element includes one or more of the following situations:
  • the UE receives one bit of information in the downlink control information DCI or the paging message of the physical downlink common control channel PDCCH for paging; if the UE holds the service information of any multicast service, the UE has more Broadcasting the target UE of the service information update indication;
  • the service identification information is a temporary multicast group identifier TMGI, or calculating the TMGI according to a first predetermined rule
  • the obtained information includes: a low N bits in the TMGI, a high N bits of the TMGI, or a result of dividing the TMGI bits into N bits and performing a logical XOR operation between the groups; if the UE saves The TMGI in the service information matches the TMGI in the service identification information, or if the result of calculating or transforming the TMGI held by the UE by using the first predetermined rule is the same as that in the service identification information, the UE multicasts the service information for this purpose. Update the indicated target UE;
  • the service area identifier information is a service area identifier SAI, or calculating the SAI according to a second predetermined rule
  • the obtained information includes: a low N bits in the SAI, a high N bits of the SAI, or a result of dividing the SAI all bits into a group of N bits and performing a logical XOR operation between the groups; if the UE saves The SAI in the service information matches the SAI in the service identification information, or if the result of the calculation or transformation of the SAI saved by the UE is the same as that in the service identification information by using the second predetermined rule, the UE multicasts the service information for this purpose. Update the indicated target UE.
  • the receiving, by the UE, the multicast service from the access network element according to the service information of the multicast service includes:
  • the service information S1 saved by the UE and the acquired service information S2 are compared. If the service information S1 matches S2, the UE receives the multicast service according to the service information S2.
  • the matching of the service information S1 and S2 refers to:
  • the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI without carrying the TMGI, the SAIs of the service information S1 and S2 are the same.
  • the UE when the UE receives the service information of the multicast service in the system information block, the UE receives the service information of the multicast service from the access network element according to one of the following manners:
  • the UE immediately receives the system information block after receiving the multicast service information update indication.
  • the UE when the UE receives the service information of the multicast service in the SC-MCCH message, the UE receives the service information of the multicast service from the access network element according to one of the following manners:
  • the UE immediately receives the SC-MCCH message SM-1 after receiving the multicast service information update indication.
  • the UE when the UE receives the service information of the multicast service in the system information block, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one or Variety of ways:
  • the UE receives a change notification of the SC-MCCH message or an SC-MCCH message according to the start time to obtain scheduling information of the multicast service.
  • the UE starts to receive the change notification of the SC-MCCH message from the next SC-MCCH repetition period after receiving the updated system information block or An SC-MCCH message to obtain scheduling information of the multicast service;
  • the UE starts receiving the SC-MCCH update notification or the SC-MCCH message at a specific time to obtain scheduling information of the multicast service, where the specific time is the next H-SFN mod after the UE receives the updated system information block.
  • the m is the maximum eDRX cycle length of the cell.
  • the UE when the UE receives the service information of the multicast service in the SC-MCCH message, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one. Or a combination of multiple ways:
  • the UE receives at least one of a change notification of the SC-MCCH message and the SC-MCCH message SM-2 according to the start time to obtain the multiple Scheduling information of the broadcast service;
  • the cycle starts to receive the SC-MCCH message change notification or the SC-MCCH message SM-2;
  • the UE If frequency information is indicated in the SC-MCCH message SM-1, the UE first performs cell reselection and performs reselection with the indicated frequency as the highest priority frequency.
  • the UE when the UE receives the service information of the multicast service in the paging message, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one or Variety of ways:
  • the UE receives at least one of an SC-MCCH message change notification and an SC-MCCH message SM-2 according to the start time to obtain the multicast. Scheduling information of the business;
  • the method for notifying the service information further includes:
  • the UE performs cell reselection according to the frequency information.
  • a method for notifying a service information change of a multicast service including:
  • the access network element transmits a single cell in the downlink control information DCI of the physical downlink control channel PDCCH scheduling the single cell multicast service channel SC-MTCH, or the medium access control MAC protocol data unit PDU carrying the SC-MTCH data. Notification of change of broadcast control channel SC-MCCH message.
  • the content indicated by the access network element in the DCI of the PDCCH of the scheduling SC-MTCH or the MAC PDU carrying the SC-MTCH data includes a combination of one or more of the following contents:
  • the access network element sends a change notification of the SC-MCCH message in one or more of the following situations:
  • the access network element schedules the DCI of the PDCCH of the SC-MTCH, or the MAC PDU carrying the SC-MTCH data indicates whether the SC-MCCH message is changed;
  • the configuration information related to the SC-MTCH is changed in the SC-MCCH message, including: scheduling information of the SC-MTCH, configuration information of an MBMS service corresponding to the SC-MTCH, and the SC-MTCH correlation Neighbor configuration information of the MBMS service;
  • the DCI of the PDCCH scheduling the SC-MTCH of the access network element or the MAC PDU carrying the SC-MTCH data indicates whether the content of the SC-MCCH message is related to the SC-MTCH Content change;
  • the access network element notifies the DCI of the PDCCH of the SC-MTCH when the SC-MTCH-independent SC-MCCH message content is changed, or the MAC PDU carrying the SC-MTCH data indicates that the SC-MCCH message has the SC - Update of MTCH-independent content.
  • the time when the access network element sends the change notification of the SC-MCCH message includes one or more of the following:
  • the change notification of the SC-MCCH message sent by the access network element in the DCI of the PDCCH scheduling the SC-MTCH includes:
  • the access network element sends one or more DCIs of the PDCCH that do not indicate scheduling information of the PDSCH channel carrying the SC-MTCH, but indicates a change notification of the SC-MCCH message in the DCI; the DCI usage scheduling of the PDCCH is
  • the RNTI of the SC-MTCH is scrambled and scheduled for transmission using the configuration of the scheduling period of the SC-MTCH.
  • the change notification of the SC-MCCH message sent by the access network element in the MAC PDU carrying the SC-MTCH data includes:
  • the access network element sends one or more MAC PDUs that do not carry SC-MTCH data, but indicates a change notification of the SC-MCCH message in the MAC PDU.
  • a method for notifying a service information change of a multicast service including:
  • the user equipment UE receives the change notification of the single cell multicast control channel SC-MCCH message
  • the UE receives the SC-MCCH message according to the change notification of the SC-MCCH message.
  • the receiving, by the UE, the SC-MCCH message according to the change notification of the received SC-MCCH message includes:
  • the UE in the carrier that carries the SC-MCCH, after receiving the SC-MCCH modification period corresponding to the change notification time of the SC-MCCH message, or after receiving the change notification of the SC-MCCH message
  • the SC-MCCH message is received within the SC-MCCH modification period.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE When the SC-MCCH and the SC-MTCH are on different carriers, the UE receives the SC-MCCH update message within the agreed SC-MCCH modification period after receiving the change notification of the SC-MCCH message.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE preferentially receives the SC-MCCH message at least in the following cases:
  • the change notification of the SC-MCCH message indicates that the change of the SC-MCCH message content is related to the SC-MTCH, when the MBMS service corresponding to the SC-MTCH is stopped, or the MBMS service corresponding to the SC-MTCH When the neighbor information changes.
  • a method for notifying a service information change of a multicast service including:
  • the access network element transmits the content of the single cell multicast control channel SC-MCCH message in the carrier scheduling the single cell multicast service channel SC-MTCH, and the SC-MCCH and the SC-MTCH are respectively carried on different carriers. And scheduling to send.
  • the content of the SC-MCCH message sent by the access network element in the carrier that schedules the SC-MTCH includes one or more of the following situations:
  • the content of the SC-MCCH message is the same as the content of the SC-MCCH message carried by the SC-MCCH in the cell, and includes at least scheduling information of all services that are being sent in the cell;
  • the content of the SC-MCCH message related to the SC-MTCH includes one or more of the following: scheduling information related to the SC-MTCH, identification information of an MBMS service corresponding to the SC-MTCH, and the MBMS Service related neighbor configuration information.
  • the content that the access network element sends the SC-MCCH message includes at least one of the following methods:
  • the access network element sends a physical downlink control channel PDCCH in the scheduling period of the SC-MTCH.
  • DCI the DCI of the PDCCH is scrambled using a dedicated RNTI, and the DCI scrambled by the dedicated RNTI indicates scheduling information of a physical downlink shared channel PDSCH carrying the message M;
  • the access network element transmits the DCI of the PDCCH in the scheduling period of the scheduling SC-MTCH, and the DCI of the PDCCH is scrambled by scheduling the RNTI of the SC-MTCH; the access network element is in the DCI
  • the content carried by the PDSCH indicating the scheduling is the message M;
  • the access network element transmits the content of the SC-MCCH message through the medium access control MAC layer control unit CE; the content of the SC-MCCH message is encapsulated in a MAC CE, and the MAC CE is carrying the SC - the MAC protocol data unit PDU of the MTCH data;
  • the access network element includes a message M containing the SC-MCCH message content, which is carried in the logical channel SC-MCCH, and the SC-MCCH carrying the message M and the SC-MTCH carrying the service data are multiplexed by the MAC layer. Multiplexing MAC PDUs;
  • the message M includes the content of the SC-MCCH message; and the message M is carried by the logical channel SC-MCCH.
  • the number of repeated transmissions of the DCI of the PDCCH is indicated by the system information block and the SC-MCCH message; the number of repetitions of the PDSCH carrying the message M is passed through the system information block, the SC-MCCH message, or The DCI indication of the PDCCH.
  • a method for notifying a service information change of a multicast service including:
  • the user equipment UE receives the content of the single cell multicast control channel SC-MCCH message in the carrier scheduling the single cell multicast traffic channel SC-MTCH.
  • the receiving, by the UE, the content of the SC-MCCH message in the carrier that schedules the SC-MTCH includes at least one of the following manners:
  • the UE When the UE detects the DCI of the PDCCH scrambled by the dedicated RNTI in the scheduling period of the SC-MTCH, it determines that the content of the PDSCH carried by the DCI is the message M, and regards the scheduling of the message M as one time.
  • the scheduling of the SC-MTCH data is performed as well as the processing of its inactivity timer; the message M contains part or all of the contents of the SC-MCCH message;
  • the UE detects that the content of the PDCCH by scheduling the SC-MTCH indicates that the content of the scheduling is the message M, and determines that the content of the scheduling is the message M, and the scheduling of the message M is performed. Treating the inactivity timer as if it were a schedule of SC-MTCH data;
  • the UE After receiving the updated SC-MCCH message content, the UE applies the content of the received updated SC-MCCH message after the time boundary of the next SC-MCCH modification period.
  • a service information notification method for a multicast service including:
  • the MBMS service is a push type
  • the update notification of the MBMS service information needs to be completed by a paging mechanism
  • the MBMS service is of a burst type
  • the core network element sends the MBMS session start request to the access network element.
  • the method for notifying the service information further includes:
  • the core network element indicates the parameter of the MBMS service in the MBMS session start request; the parameters include but are not limited to one or more of the following: start time, SAI, frequency information.
  • the MBMS session start request is used to indicate that the access network element is processed according to the following method:
  • a service information notification device for a multicast service which is disposed on an access network element, and includes:
  • a first sending module configured to send a multicast service information update indication to the user equipment UE
  • the first indication module is configured to indicate to the UE the service information of the multicast service.
  • a service information notification device for a multicast service which is disposed on a user equipment, and includes:
  • the first receiving module is configured to receive the multicast service information update indication and the service information of the multicast service from the access network element;
  • the second receiving module is configured to receive the multicast service from the access network element according to the service information of the multicast service.
  • a service information change notification device for a multicast service which is disposed on an access network element, and includes:
  • a second sending module configured to: in a downlink control information DCI of a physical downlink control channel PDCCH that schedules a single cell multicast service channel SC-MTCH, or a medium access control MAC protocol data unit PDU that carries SC-MTCH data, send a single Notification of change of the cell multicast control channel SC-MCCH message.
  • a service information change notification device for a multicast service which is installed on a user equipment, and includes:
  • a third receiving module configured to receive a change notification of a single cell multicast control channel SC-MCCH message
  • the fourth receiving module is configured to receive the SC-MCCH message according to the change notification of the SC-MCCH message.
  • a service information change notification device for a multicast service which is disposed on an access network element, and includes:
  • a third sending module configured to send a single cell in a carrier that schedules a single cell multicast traffic channel SC-MTCH
  • the content of the multicast control channel SC-MCCH message, the SC-MCCH and the SC-MTCH are respectively carried and scheduled to be transmitted on different carriers.
  • a service information change notification device for a multicast service which is installed on a user equipment, and includes:
  • the fifth receiving module is configured to receive the content of the single cell multicast control channel SC-MCCH message in the carrier scheduling the single cell multicast traffic channel SC-MTCH.
  • a service information notification device for a multicast service which is disposed on a core network element, and includes:
  • the second indication module is configured to: in the control plane message multimedia broadcast multicast MBMS session start request, indicate that the MBMS service indicated in the control plane message has at least one of the following characteristics:
  • the MBMS service is a push type
  • the update notification of the MBMS service information needs to be completed by a paging mechanism
  • the MBMS service is of a burst type
  • the fourth sending module is configured to send the MBMS session start request to the access network element.
  • the embodiments of the present disclosure can enable the UE to know the change of the multicast service in time.
  • a storage medium configured to store program code for performing the method of any of the preceding claims.
  • FIG. 1 is a schematic diagram of a SC-MCCH scheduling and modification cycle in the related art
  • FIG. 3 is a flowchart of a service information notification method of a first type of multicast service applied to an access network element side in an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a service information notification method of a first type of multicast service applied to a UE side in an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a service information change notification method of a first type of multicast service applied to an access network element side in an embodiment of the present disclosure
  • FIG. 6 is a flowchart of a service information change notification method of a first type of multicast service applied to a UE side in an embodiment of the present disclosure
  • Figure 7 is a schematic illustration of the method of Example 4.
  • FIG. 8 is a method for applying a service information change notification of a second multicast service in an embodiment of the present disclosure to an access network element. Flow chart on the side;
  • FIG. 9 is a flowchart of a service information change notification method of a second multicast service applied to a UE side in an embodiment of the present disclosure
  • FIG. 10 is a flowchart of a service information notification method of a second multicast service applied to a core network side of a core network according to an embodiment of the present disclosure
  • FIG. 11 is a schematic diagram of a service information notification apparatus of a first type of multicast service set in an access network element according to an embodiment of the present disclosure
  • FIG. 12 is a schematic diagram of a service information notification apparatus of a first type of multicast service set in a UE in an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram of a service information change notification apparatus of a first type of multicast service set in an access network element according to an embodiment of the present disclosure
  • FIG. 14 is a schematic diagram of a service information change notification device of a first type of multicast service set in a UE according to an embodiment of the present disclosure
  • FIG. 15 is a schematic diagram of a service information change notification apparatus of a second multicast service set in an access network element according to an embodiment of the present disclosure
  • 16 is a schematic diagram of a service information change notification apparatus of a second multicast service set in a UE according to an embodiment of the present disclosure
  • FIG. 17 is a schematic diagram of a service information notification apparatus of a second multicast service set in a core network element in the embodiment of the present disclosure.
  • the network side indicates the information about the MBMS service of the user equipment (User Equipment, UE) through the User Service Description (USD).
  • the information includes: Temporary Multicast Group Identity (TMGI), the start time and end time of the service, the Service Area Identity (SAI) that sends the service, and the wireless information (Frequency) for sending the service. ).
  • the network side sends the USD information of the MBMS service to the UE through the application layer communication manner, and the application layer communication manner is relative to the access layer (AS) of the radio access network.
  • a common application layer communication method includes transmitting a USD to a UE through a mechanism such as a HyperText Transfer Protocol (HTTP) or a Short Message Service (SMS).
  • HTTP HyperText Transfer Protocol
  • SMS Short Message Service
  • the SC-MCCH is a logical channel for carrying SC-MCCH messages and accessing the network.
  • the UE indicates the scheduling information of the MBMS service transmitted by the UE on the radio interface in the SC-PTM mode by using the SC-MCCH message, and is used by the UE to receive the MBMS service data that needs to be received on the radio interface.
  • the scheduling information of the SC-MTCH indicated in the SC-MCCH message includes the length of the scheduling period, the starting position and length of the scheduling window, and the length of an inactivity timer.
  • the access network element is scheduled in a scheduling window within the scheduling period of the SC-MTCH. The UE receives this SC-MTCH according to this scheduling information.
  • the access network element indicates the change of the UE SC-MCCH message when the SC-MCCH message is updated through an SC-MCCH change notification mechanism.
  • the UE can learn that the SC-MCCH message is changed by using the change notification mechanism, so that the SC-MCCH message can be received to detect whether the SC-MCCH message carries the scheduling information of the MBMS service of interest, and if so, The UE starts receiving MBMS service data according to the scheduling information.
  • the SC-MCCH modification period is defined, and the SC-MCCH message is updated only at the boundary of the SC-MCCH modification period.
  • the access network element passes the downlink control information (Downlink Control Information of the Physical Downlink Control Channel, PDCCH) before the updated SC-MCCH message is sent.
  • the DCI indicates the SC-MCCH message change, and the DCI for the change notification of the SC-MCCH message is scrambled using a dedicated scrambling code (SC-N-RNTI).
  • the SC-MCCH modification period may include multiple SC-MCCH repetition periods, such as two in FIG. 1 and one SC-MCCH repetition period.
  • FIG. 2 it is a schematic diagram of an SC-MTCH scheduling period (Period); in an SC-MTCH scheduling period, there is an offset between the starting point of the scheduling window (Onduration) and the starting point of the scheduling period, in FIG.
  • the slash fill portion is the dispatch window, and the grid fill portion is the inactivity timer.
  • the service information notification method of the first multicast service provided by the embodiment of the present disclosure is applied to the network element side of the access network, as shown in FIG. 3, and includes 110 to 120:
  • the access network element sends an update indication of the multicast service information to the UE.
  • the access network element indicates the service information of the multicast service to the UE.
  • the access network element indicating the service information of the multicast service to the UE may include, but is not limited to, at least one of the following manners:
  • the access network element indicates the service information of the multicast service in the system information block
  • the access network element indicates the service information of the multicast service in the SC-MCCH message
  • the access network element indicates the service information of the multicast service in the paging message.
  • the sending the network service element update indication to the UE by the access network element may be, but is not limited to, one or more of the following:
  • the service identification information is TMGI, or information obtained by calculating or transforming the TMGI according to the first predetermined rule, including but not limited to: low N bits in the TMGI, high N bits of the TMGI, or dividing all bits of the TMGI into a result of a logical XOR operation between groups of N bits;
  • the service area identification information is SAI, or information obtained by calculating or transforming the SAI according to a second predetermined rule, This includes, but is not limited to, the low N bits in the SAI, the high N bits of the SAI, or the result of dividing the SAI bits into N bits and performing a logical XOR operation between the groups.
  • the service information of the multicast service indicated by the network element of the access network includes, but is not limited to, at least one of TMGI and SAI of the multicast service.
  • the service information may further include at least one of a start and an end time of the multicast service, and if the service information includes an SAI, the service information is further The frequency information of the multicast service may be included.
  • the method for notifying the service information further includes:
  • the access network element indicates the scheduling information of the multicast service in the SC-MCCH message.
  • the method for notifying the service information further includes:
  • the access network element updates the system information block including the service information of the multicast service before or after transmitting the multicast service information update indication to the UE.
  • the access network element before the sending network element sends the multicast service information update indication to the UE, the access network element further includes:
  • the access network element receives the control plane message MBMS Session Start Request sent by the core network element, where the control plane message is used to indicate the access network element, and the paging mechanism is used to complete the indication in the control plane message.
  • the business information update notice of the MBMS service is used to complete the indication in the control plane message.
  • the access network element when the access network element indicates the service information of the multicast service in the system information block, the access network element sends the multicast service information update indication to the UE according to one of the following manners, and The UE indicates the service information of the multicast service:
  • the access network element sends the multicast service information update indication in a paging occasion in a previous maximum enhanced discontinuous reception eDRX cycle, and starts updating the system information block in the next largest eDRX cycle thereafter.
  • the access network element sends the multicast service information update indication in a paging occasion within a maximum eDRX cycle, and updates the system information block sent by the system message before sending the multicast service information update indication
  • the updated system information block includes the service information S2 of the multicast service.
  • the access network element when the access network element indicates the service information of the multicast service in the single cell multicast control channel SC-MCCH message, the access network element sends the multicast service information to the UE according to one of the following manners: Updating the indication, and indicating the service information of the multicast service to the UE:
  • the access network element sends the multicast service information update indication in a paging occasion in the previous largest eDRX cycle, and starts to update the SC-MCCH message in the next largest eDRX cycle, the updated SC-
  • the access network element transmits the multicast service information update indication in a paging occasion within a maximum eDRX cycle, and prior thereto, updates the SC-MCCH message SM-1 transmitted through the SC-MCCH channel, the SC The MCCH message SM-1 contains the service information S2 of the multicast service.
  • the service information notification method of the first type of multicast service provided by the embodiment of the present disclosure is applied to the UE side, as shown in FIG. 4, and includes 210 to 220:
  • the UE receives the multicast service information update indication and the service information of the multicast service from an access network element.
  • the UE receives the multicast service from the access network element according to the service information of the multicast service.
  • the receiving, by the UE, the service information of the multicast service from the access network element may include, but is not limited to, at least one of the following manners:
  • the UE receives the service information of the multicast service in the paging message.
  • the receiving, by the UE, the multicast service information update indication from the access network network element may be, but is not limited to, one or more of the following:
  • the UE receives one bit of information in a DCI or paging message of a PDCCH for paging; if the UE stores service information of any multicast service, the UE is the target UE of the multicast service information update indication. ;
  • the service identification information is a TMGI, or information obtained by calculating or transforming the TMGI according to a first predetermined rule.
  • TMGI low N bits in TMGI
  • high N bits of TMGI or splitting all bits of TMGI into N bits and performing logical exclusive OR operation between groups; if the UE saves the service
  • the TMGI in the information matches the TMGI in the service identification information, or if the result of calculating or transforming the TMGI saved by the UE by using the first predetermined rule is the same as that in the service identification information, the UE updates the indication for the multicast service information.
  • the service area identifier information is SAI, or calculating or transforming the SAI according to a second predetermined rule.
  • Information including but not limited to: low N bits in SAI, high N bits of SAI, or splitting all bits of SAI into N groups of bits and performing logical XOR operation between groups; if the UE saves The SAI in the service information matches the SAI in the service identification information, or if the result of the calculation or transformation of the SAI saved by the UE is the same as that in the service identification information by using the second predetermined rule, the UE multicasts the service information for this purpose. Update the indicated target UE.
  • the receiving, by the UE, the multicast service from the access network element according to the service information of the multicast service includes:
  • the service information S1 saved by the UE and the acquired service information S2 are compared. If the service information S1 matches S2, the UE receives the multicast service according to the service information S2.
  • the matching of the service information S1 and S2 may be:
  • the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI without carrying the TMGI, the SAIs of the service information S1 and S2 are the same.
  • the UE when the UE receives the service information of the multicast service in the system information block, the UE receives the service information of the multicast service from the access network element according to one of the following manners:
  • the UE immediately receives the system information block after receiving the multicast service information update indication.
  • the UE when the UE receives the service information of the multicast service in the SC-MCCH message, the UE receives the service information of the multicast service from the access network element according to one of the following manners:
  • the UE immediately receives the SC-MCCH message SM-1 after receiving the multicast service information update indication.
  • the UE when the UE receives the service information of the multicast service in the system information block, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one or Variety of ways:
  • the UE receives a change notification of the SC-MCCH message or an SC-MCCH message according to the start time to obtain scheduling information of the multicast service.
  • the UE receives the change notification of the SC-MCCH message or the SC-MCCH from the next SC-MCCH repetition period after receiving the updated system information block. a message to obtain scheduling information of the multicast service;
  • the UE starts receiving the SC-MCCH update notification or the SC-MCCH message at a specific time to obtain scheduling information of the multicast service, where the specific time is the next H-SFN mod after the UE receives the updated system information block.
  • the specific time is the next H-SFN mod after the UE receives the updated system information block.
  • the m is the maximum eDRX cycle length of the cell; mod represents the remainder operation.
  • the method may further include:
  • the UE performs cell reselection according to the frequency information.
  • the UE when the UE receives the service information of the multicast service in the SC-MCCH message, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one. Or a combination of multiple ways:
  • the UE receives at least one of a change notification of the SC-MCCH message and the SC-MCCH message SM-2 according to the start time to obtain the multiple Scheduling information of the broadcast service;
  • the cycle starts to receive the SC-MCCH message change notification or the SC-MCCH message SM-2;
  • the UE If frequency information is indicated in the SC-MCCH message SM-1, the UE first performs cell reselection and performs reselection with the indicated frequency as the highest priority frequency.
  • the UE when the UE receives the service information of the multicast service in the paging message, the UE receives the multicast service from the access network element according to the service information S2, and includes the following one or Variety of ways:
  • the UE receives at least one of an SC-MCCH message change notification and an SC-MCCH message SM-2 according to the start time to obtain the multicast. Scheduling information of the business;
  • the method may further include:
  • the UE performs cell reselection according to the frequency information.
  • the access network element sends a multicast service information update indication, and indicates the service information of the multicast service in a System Information Block (SIB).
  • SIB System Information Block
  • the UE receives the multicast service information update indication and the service information of the multicast service, and receives the multicast service according to the service information of the multicast service.
  • the sending network element sends the multicast service information update indication to include one or more of the following situations:
  • a bit of indication information is transmitted in a DCI or a paging message of a PDCCH for paging, and the indication information of the one bit indicates whether there is an update of the multicast service information.
  • the indication information of the one bit (ie, the multicast service information update indication) is received, and the UE that stores the service information of any multicast service updates the target UE of the multicast service information indication.
  • the service identification information indicating the service information.
  • the service identification information is TMGI, or information obtained by calculating or transforming the TMGI according to the first predetermined rule, including but not limited to: low N bits in the TMGI, high N bits of the TMGI, or all bits of the TMGI The result of a logical XOR operation between groups of N bits.
  • the UE receives the service identification information in the service information in the DCI or paging message of the PDCCH for paging; it is considered that the multicast service information update indication is received; and the multicast service information is received.
  • the UE indicating the update compares the TMGI in the saved service information with the TMGI in the multicast service information update indication, if it matches (same), or if the first predetermined rule is used to calculate or transform the TMGI and the service identification information The same, the UE updates the indicated target UE for this multicast service information.
  • the service area identification information is a service area identifier SAI, or information obtained by calculating or transforming the SAI according to the second predetermined rule, including but not limited to: low N bits in the SAI, high N bits of the SAI, or The SAI all bits are divided into N bits and a result of logical exclusive OR operation between groups.
  • the UE receives the service area identification information of the service information in the DCI or paging message of the PDCCH for paging; it is considered that the multicast service information update indication is received; and the multicast service information is received.
  • the UE indicating the update compares the SAI in the saved service information with the SAI in the service information update indication, if it matches (same), or if the SAI is calculated or transformed using the second predetermined rule, the result is the same as the service area identification information. Then, the UE updates the indicated target UE for this service information.
  • the service information S2 of the multicast service indicated by the access network element in the system information block includes: at least one of the TMGI and the SAI of the multicast service.
  • the service information S2 further includes at least one of a start and an end time of the multicast service. If the service information S2 includes the SAI, the service information S2 further includes sending the multicast service. Frequency information.
  • the UE receives the service information of the multicast service according to one of the following manners, and the access network element sends the multicast service information update indication and the service information of the multicast service according to one of the following manners:
  • the access network element sends the multicast service information update indication in a paging occasion in the previous largest eDRX cycle, and starts updating the system information block and updates in the next largest eDRX cycle thereafter.
  • the system information block contains the service information S2 of the multicast service.
  • the UE immediately receives the system information block after receiving the multicast service information update indication.
  • the access network element sends the multicast service information update indication in a paging occasion (Paging Occasion, PO) within a maximum eDRX cycle, and before transmitting the multicast service information update indication Updating the system information block sent by the system message, where the updated system information block includes the service letter of the multicast service Interest S2.
  • a paging occasion Paging Occasion, PO
  • the multicast service information update indication Updating the system information block sent by the system message, where the updated system information block includes the service letter of the multicast service Interest S2.
  • the receiving, by the UE, the multicast service information update indication and the service information of the multicast service, and receiving the multicast service according to the service information of the multicast service includes:
  • the target UE After receiving the multicast service information update indication, the target UE receives the system information block, obtains the service information S2, and compares the service information S1 saved by the UE with the acquired service information S2, if the service information S1 and S2 are If the match is performed, the UE receives the multicast service according to the service information S2.
  • the matching of the service information S1 and S2 may be: if the service information S2 carries the TMGI, the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI, but does not carry the TMGI, Then, the SAIs of the service information S1 and S2 are the same.
  • the receiving, by the UE, the multicast service according to the service information S2 includes one or more of the following manners:
  • the service information S2 carries the start time of the multicast service, and the UE receives the change notification of the SC-MCCH message or the SC-MCCH message according to the start time to obtain the scheduling of the multicast service. information.
  • the access network element indicates the scheduling information of the multicast service in the SC-MCCH message.
  • the service information S2 does not carry the start time of the multicast service, and the UE receives the change notification of the SC-MCCH message from the next SC-MCCH repetition period after receiving the updated system information block or
  • the SC-MCCH message is used to obtain scheduling information of the multicast service.
  • the access network element indicates the scheduling information of the multicast service in the SC-MCCH message.
  • m is the maximum length of the enhanced discontinued reception (eDRX) period of the cell, that is, the SC-MCCH modification period from the moment, or the first SC-MCCH modification period after this time starts to receive the SC-MCCH message.
  • the change notification or the SC-MCCH message is used to obtain scheduling information of the multicast service.
  • the access network element indicates the scheduling information of the multicast service in the SC-MCCH message.
  • the method further includes: if the service information S2 carries the frequency information of the multicast service, the UE performs cell reselection according to the frequency information.
  • the method further includes: the access network element indicates the scheduling information of the multicast service in the foregoing SC-MCCH message, and the UE receives the scheduling information according to the multicast service. SC-MTCH for this multicast service.
  • the method further includes: the access network element updates the system information block including the service information S2 before or after transmitting the multicast service information update indication. If the access network element updates the system information block before transmitting the multicast service information update indication, updating the system information block does not affect the value tag of the system message.
  • the DCI of the PDCCH for paging, and/or the paging message is sent by a PO within a time range of a maximum eDRX cycle length within the cell.
  • the access network element sends a multicast service information update indication, and indicates the service information of the multicast service in the SC-MCCH message.
  • the UE receives the multicast service information update indication and the service information, and receives the multicast service according to the service information.
  • the sending network element sending the multicast service information update indication may be, but is not limited to, including one or more of the following situations:
  • One bit of indication information is transmitted in a DCI or paging message of a PDCCH for paging, and the indication information of this one bit indicates that there is an update of multicast service information.
  • the one-bit indication information (ie, the multicast service information update indication) is received, and the UE that has the service information locally stored therein is the target UE of the multicast service information update indication.
  • the service identification information is TMGI, or information obtained by calculating or transforming the TMGI according to the first predetermined rule, including but not limited to: low N bits in the TMGI, high N bits of the TMGI, or all bits of the TMGI The result of a logical XOR operation between groups of N bits.
  • the UE receives the service identification information in the service information in the DCI or paging message of the PDCCH for paging; it is considered that the multicast service information update indication is received; and the multicast service information is received.
  • the UE indicating the update compares the TMGI in the saved service information with the TMGI in the multicast service information update indication, if it matches (same), or if the first predetermined rule is used to calculate or transform the TMGI and the service identification information The same, the UE updates the indicated target UE for this multicast service information.
  • the service area identifier information is SAI, or information that is calculated or transformed by the SAI according to the second predetermined rule, including but not limited to: low N bits in the SAI, high N bits of the SAI, or all bits of the SAI. The result of a logical XOR operation between groups of N bits.
  • the UE receives the service area identification information in the service information in the DCI or paging message of the PDCCH for paging, it is considered that the multicast service information update indication is received; and the multicast service is received.
  • the UE that instructs the information update compares the SAI in the saved service information with the SAI in the multicast service information update indication, if it matches (same), or if the SAI is calculated or transformed using the second predetermined rule, the result is compared with the service area. If the identification information is the same, the UE updates the indicated target UE for the multicast service information.
  • the service information S2 of the multicast service indicated by the access network element in the SC-MCCH message SM-1 includes: at least one of TMGI and SAI of the multicast service.
  • the service information S2 further includes at least one of a start end time of the multicast service. If the service information S2 includes the SAI, the service information S2 further includes sending the multicast service. Frequency information.
  • the service information S2 further includes scheduling information of the multicast service in the local cell, where the scheduling information includes one or more of the following: a scheduling period, an inactivity timer, an onduration timer, and a carrier frequency. Point information.
  • the UE receives the service information of the multicast service according to one of the following manners, and the access network element sends the multicast service information update indication and the service information of the multicast service according to one of the following manners:
  • the access network element sends the multicast service information update indication in a paging occasion in the previous maximum eDRX cycle, and starts to update the SC-MCCH message in the next largest eDRX cycle thereafter.
  • the updated SC-MCCH message SM-2 contains the service information S2 of the multicast service.
  • the UE immediately receives the SC-MCCH message SM-1 after receiving the information update indication of the multicast service.
  • the access network element transmits the multicast service information update indication in a paging occasion PO within a maximum eDRX cycle, and prior thereto, updates the SC-MCCH message transmitted through the SC-MCCH channel.
  • the SC-MCCH message SM-1 includes service information S2 of the multicast service.
  • the receiving, by the UE, the multicast service information update indication and the service information of the multicast service, and receiving the multicast service according to the service information of the multicast service includes:
  • the target UE After receiving the multicast service information update indication, the target UE receives the SC-MCCH message SM-1, obtains the service information S2, and compares the service information S1 saved by the UE with the acquired service information S2, if the service information S1 and S2 If the matches, the UE receives the multicast service according to the service information S2.
  • m is the length of the maximum eDRX period of the cell or equal to 1024
  • mod is a modulo operation.
  • the service information S1 and S2 match, which means:
  • the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI without carrying the TMGI, the SAIs of the service information S1 and S2 are the same.
  • the receiving, by the UE, the multicast service according to the service information S2 includes one or more of the following situations:
  • the service information S2 carries the start time of the multicast service, and the UE receives at least one of a change notification of the SC-MCCH message SM-2 and the SC-MCCH message SM-2 according to the start time. Obtaining scheduling information of the multicast service.
  • the access network element indicates the scheduling information of the multicast service through the SC-MCCH message SM-2.
  • the access network element updates the SC-MCCH message before the start time and sends the SC-MCCH message SM-2.
  • the UE starts receiving at least one of the SC-MCCH update notification and the SC-MCCH message SM-2 at a specific time, and the specific time is the next H-SFN mod m after receiving the SC-MCCH message SM-1.
  • the m is the maximum eDRX period length of the cell or equal to 1024, or the next SC-MCCH modification period after receiving the SC-MCCH message SM-1 begins.
  • the SC-MCCH message change notification or the SC-MCCH message SM-2 is received.
  • the access network element updates the SC-MCCH message at the foregoing time, and sends an SC-MCCH message SM-2, where the SC-MCCH message SM-2 carries the scheduling information of the multicast service.
  • the SC-MTCH scheduling period of the broadcast service starts to receive the SC-MTCH of the multicast service, where m is the length of the maximum eDRX period of the cell or equal to 1024; or, after receiving the SC-MCCH message SM-1, the UE
  • the SC-MTCH of the multicast service begins to receive the start of the next SC-MCCH cycle.
  • the UE If the access network element indicates the frequency information in the SC-MCCH message SM-1, the UE first performs cell reselection, and performs reselection with the indicated frequency as the highest priority frequency.
  • the DCI of the PDCCH for paging, and/or the paging message is sent by a PO within a time range of a maximum eDRX cycle length within the cell.
  • the eDRX cycle may be a complete maximum eDRX cycle or may span two consecutive maximum eDRX cycles.
  • the access network element sends a multicast service information update indication, and indicates the service information of the multicast service in the paging message.
  • the UE receives the service information update indication and the service information, and receives the multicast service according to the service information.
  • the sending network element sends the multicast service information update indication to include one or more of the following situations:
  • One bit of information is transmitted in the DCI of the PDCCH for paging.
  • the UE that receives the multicast service information update indication and stores the service information of any multicast service locally is the target UE of the multicast service information update indication.
  • the service identification information is TMGI, or information obtained by calculating or transforming the TMGI according to the first predetermined rule, including but not limited to: low N bits in the TMGI, high N bits of the TMGI, or all bits of the TMGI The result of a logical XOR operation between groups of N bits.
  • the UE receives the service identification information in the service information in the DCI or paging message of the PDCCH for paging; it is considered that the multicast service information update indication is received; and the multicast service is received.
  • information update The instructed UE compares the TMGI in the saved service information with the TMGI in the multicast service information update indication, if it matches (same), or if the TMGI is calculated or transformed using the first predetermined rule, the result is the same as the service identification information. Then, the UE updates the indicated target UE for the multicast service information.
  • the service area identifier information is SAI, or information obtained by calculating or transforming the SAI according to the second predetermined rule, including but not limited to: low N bits in the SAI, high N bits of the SAI, or all bits of the SAI It is divided into N groups of bits and performs the result of logical exclusive OR operation between groups.
  • the UE receives the service area identification information in the service information in the DCI or paging message of the PDCCH for paging; it is considered that the multicast service information update indication is received; the multicast is received.
  • the UE indicating the service information update compares the SAI in the saved service information with the SAI in the multicast service information update indication, if it matches (same), or if the SAI is calculated or transformed using the second predetermined rule, the result and service are The area identification information is the same, and the UE updates the indicated target UE for this service information.
  • the service information S2 indicated by the access network in the paging message includes: at least one of TMGI and SAI of the multicast service.
  • the service information S2 further includes at least one of a start and an end time of the multicast service. If the service information S2 includes the SAI, the service information S2 further includes sending the multicast service. Frequency information.
  • the receiving, by the UE, the multicast service information update indication and the service information of the multicast service, and receiving the multicast service according to the service information of the multicast service includes:
  • the target UE After receiving the multicast service information update indication, the target UE receives the paging message, obtains the service information S2, and compares the service information S1 saved by the UE with the acquired service information S2. If the service information S1 matches S2, Then, the UE receives the multicast service according to the service information S2.
  • the matching of the service information S1 and S2 may be:
  • the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI without carrying the TMGI, the SAIs of the service information S1 and S2 are the same.
  • the receiving, by the UE, the multicast service according to the service information S2 includes one or more of the following manners:
  • the service information S2 carries the start time of the multicast service, and the UE receives the SC-MCCH message change notification according to the start time, that is, from the start time or the time before the start time. At least one of the SC-MCCH message SM-2 obtains scheduling information of the multicast service.
  • the access network element indicates the scheduling information of the multicast service through the SC-MCCH message SM-2.
  • the period length is equal to or equal to 1024, that is, the SC-MCCH modification period or the SC-MCCH modification period after this time starts to receive the SC-MCCH message change notification or the SC-MCCH message SM-2.
  • the access network element updates the SC-MCCH message at the foregoing time, and sends an SC-MCCH message SM-2,
  • the SC-MCCH message SM-2 carries scheduling information of the multicast service.
  • the method further includes: if the service information S2 carries the frequency information of the service, the UE performs cell reselection according to the frequency information.
  • the DCI of the PDCCH for paging, and/or the paging message is sent by a PO within a time range of a maximum eDRX cycle length within the cell.
  • the eDRX cycle may be a complete maximum eDRX cycle or may span two consecutive maximum eDRX cycles.
  • the method further includes:
  • the core network element indicates the service information of the access network element MBMS service by signaling, and indicates the access network element explicitly or implicitly.
  • the MBMS service indicates the UE on the wireless interface by using one of the methods provided in this embodiment.
  • the business information of the MBMS service is not limited to the above embodiment.
  • the service information change notification method of the first type of multicast service provided by the embodiment of the present disclosure is applied to the network element side of the access network, as shown in FIG. 5, and includes 310:
  • the access network element sends a change notification of the SC-MCCH message in the DCI of the PDCCH scheduling the SC-MTCH or the MAC PDU carrying the SC-MTCH data.
  • the method further includes:
  • the access network element generates a change notification of the SC-MCCH message.
  • the content indicated by the access network element in the DCI of the PDCCH of the scheduling SC-MTCH or the MAC PDU carrying the SC-MTCH data includes a combination of one or more of the following contents:
  • the access network element sends a change notification of the SC-MCCH message in one or more of the following situations:
  • the access network element schedules the DCI of the PDCCH of the SC-MTCH, or the MAC PDU carrying the SC-MTCH data indicates whether the SC-MCCH message is changed;
  • the configuration information related to the SC-MTCH is changed in the SC-MCCH message, including: scheduling information of the SC-MTCH, configuration information of an MBMS service corresponding to the SC-MTCH, and the SC-MTCH correlation Neighbor configuration information of the MBMS service;
  • the DCI of the PDCCH scheduling the SC-MTCH of the access network element or the MAC PDU carrying the SC-MTCH data indicates whether the content of the SC-MCCH message is related to the SC-MTCH related content changes;
  • the access network element notifies the DCI of the PDCCH of the SC-MTCH when the SC-MTCH-independent SC-MCCH message content is changed, or the MAC PDU carrying the SC-MTCH data indicates that the SC-MCCH message has the SC - Update of MTCH-independent content.
  • the time when the access network element sends the change notification of the SC-MCCH message includes one or more of the following:
  • the change notification of the SC-MCCH message sent by the access network element in the DCI of the PDCCH scheduling the SC-MTCH includes:
  • the access network element sends one or more DCIs of the PDCCH that do not indicate scheduling information of the PDSCH channel carrying the SC-MTCH, but indicates a change notification of the SC-MCCH message in the DCI; the DCI usage scheduling of the PDCCH is
  • the RNTI of the SC-MTCH is scrambled and scheduled for transmission using the configuration of the scheduling period of the SC-MTCH.
  • the change notification of the SC-MCCH message sent by the access network element in the MAC PDU carrying the SC-MTCH data includes:
  • the access network element sends one or more MAC PDUs that do not carry SC-MTCH data, but indicates a change notification of the SC-MCCH message in the MAC PDU.
  • the service information change notification method of the first type of multicast service provided by the embodiment of the present disclosure includes 410 to 420:
  • the UE receives a change notification of the SC-MCCH message.
  • the UE receives an SC-MCCH message according to the change notification of the SC-MCCH message.
  • the receiving, by the UE, the SC-MCCH message according to the change notification of the received SC-MCCH message includes:
  • the UE in the carrier that carries the SC-MCCH, after receiving the SC-MCCH modification period corresponding to the change notification time of the SC-MCCH message, or after receiving the change notification of the SC-MCCH message
  • the SC-MCCH message is received within the SC-MCCH modification period.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE When the SC-MCCH and the SC-MTCH are on different carriers, the UE receives the SC-MCCH update message within the agreed SC-MCCH modification period after receiving the change notification of the SC-MCCH message.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE preferentially receives the SC-MCCH message:
  • the change notification of the SC-MCCH message indicates that the change of the SC-MCCH message content is related to the SC-MTCH, when the MBMS service corresponding to the SC-MTCH is stopped, or the MBMS service corresponding to the SC-MTCH When the neighbor information changes.
  • the service information change notification method of the first multicast service described above will be described below using an exemplary embodiment.
  • the access network element transmits a change notification of the SC-MCCH message in the DCI of the PDCCH scheduling the SC-MTCH or the MAC PDU carrying the SC-MTCH data.
  • the SC-MTCH and the SC-MCCH are respectively scheduled to be transmitted on the same carrier of the same frequency or different carriers of different frequencies.
  • the UE receives the SC-MCCH message according to the received change notification of the SC-MCCH message.
  • the content indicated by the access network element in the DCI of the scheduling PDCCH of the SC-MTCH or the MAC PDU carrying the SC-MTCH data includes a combination of one or more of the following:
  • the access network element sends a change notification of the SC-MCCH message in one or more of the following situations:
  • the DCI of the PDCCH of the SC-MTCH or the MAC PDU carrying the SC-MTCH data of the SC-MTCH of the access network element indicates whether the SC-MCCH message is changed.
  • the access network element scheduling the SC-MTCH PDCCH DCI or the MAC-PDU carrying the SC-MTCH data indicates the SC-MCCH message content Is there a content change related to the SC-MTCH?
  • the access network element is in the case that the SC-MTCH-independent SC-MCCH message content is changed, the access network element scheduling the SC-MTCH PDCCH DCI or the MAC carrying the SC-MTCH data
  • the PDU indicates that the SC-MCCH message has an update of the content unrelated to the SC-MTCH.
  • the timing for the access network element to send the change notification of the SC-MCCH message includes one or more of the following:
  • the access network element sends a change notification of the SC-MCCH message by using the method in this embodiment in the previous SC-MCCH modification period, and sends the updated SC-MCCH message in the next SC-MCCH modification period.
  • the network element of the access network sends the change notification of the SC-MCCH message
  • the DCI or bearer SC of all PDCCHs of the SC-MTCH scheduled in the time interval of the SC-MCCH modification period -MTCH The SC-MCCH message change notification is indicated in the MAC PDU of the data.
  • the receiving, by the UE, the receiving the SC-MCCH message according to the change notification of the received SC-MCCH message includes: when the UE receives the SC-MCCH message change notification time, in the carrier that carries the SC-MCCH The corresponding SC-MCCH modification period, or the SC-MCCH message is received within the SC-MCCH modification period after the time when the SC-MCCH message change notification is received.
  • the change notification of the SC-MCCH message sent by the access network element in the DCI of the PDCCH scheduling the SC-MTCH includes:
  • the access network element transmits the DCI of the PDCCH that does not indicate the scheduling information of the PDSCH channel carrying the SC-MTCH one or more times, but indicates the change notification of the SC-MCCH message in this DCI.
  • the DCI of the PDCCH is scrambled using an RNTI that schedules the SC-MTCH, and is scheduled to be transmitted using a configuration of a scheduling period of the SC-MTCH. This method can be applied to the case where there is no service data to be scheduled in one or more SC-MTCH schedules in the SC-MCCH modification period, but it is necessary to indicate the SC-MCCH message change.
  • the change notification of the SC-MCCH message sent by the access network element in the MAC PDU carrying the SC-MTCH further includes:
  • the access network element sends one or more MAC PDUs that do not carry SC-MTCH data, but indicates a change notification of the SC-MCCH message in the MAC PDU.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE When the SC-MCCH and the SC-MTCH are on different carriers, the UE receives the SC-MCCH update message within the agreed SC-MCCH modification period after receiving the change notification of the SC-MCCH message.
  • the receiving, by the UE, the SC-MCCH message according to the received change notification of the SC-MCCH message includes:
  • the UE preferentially receives the SC-MCCH message at least in the following cases:
  • the change notification of the SC-MCCH message indicates that the change of the SC-MCCH message content is related to the SC-MTCH, that is, when the scheduling information of the SC-MTCH is included, the MBMS service corresponding to the SC-MTCH is stopped.
  • the neighboring area information of the corresponding MBMS service of the SC-MTCH is changed.
  • the UE does not receive or attempt to receive the SC-MTCH channel data within the time interval of the SC-MCCH modification period of the received SC-MCCH update, and the access network element receives the SC-MCCH update in the foregoing agreement.
  • the SC-MTCH channel data is not scheduled to be transmitted during the time interval of the SC-MCCH modification period.
  • the indicating that the SC-MCCH update notification is performed by the MAC PDU carrying the SC-MTCH data means that a MAC Control Unit (MAC CE) is carried in the MAC PDU, and the MAC CE is used to indicate SC-MCCH update notification.
  • MAC CE MAC Control Unit
  • the dedicated logical channel identifier (LCID) of the MAC PDU is defined.
  • FIG. 7 is an exemplary implementation method of the embodiment.
  • SC-MTCH and SC-MCCH are respectively The transmission is scheduled in different first carriers and second carriers.
  • the access network element indicates the change notification of the SC-MCCH message in the DCI of the PDCCH scheduling the SC-MTCH.
  • the access network element starts to update the SC-MCCH message in the second SC-MCCH modification period of the first carrier.
  • the UE receives the updated SC-MCCH message in the second SC-MCCH modification period, and accesses the network element.
  • the data of the SC-MTCH channel is not scheduled to be transmitted during the time interval of the second SC-MCCH modification period.
  • the access network element schedules the change notification of the SC-MCCH message, it is not necessary to stagger the scheduling of all SC-MTCHs on different carriers in the time domain.
  • a UE that does not have the function of simultaneously receiving a plurality of carriers can also receive a change notification of the SC-MCCH message on the carrier on which the SC-MTCH is received, so that the change of the SC-MCCH message is not missed.
  • the service information change notification method of the second multicast service provided by the embodiment of the present disclosure is applied to the network element side of the access network, as shown in FIG.
  • the access network element transmits the content of the SC-MCCH message in the carrier that schedules the SC-MTCH, and the SC-MCCH and the SC-MTCH are respectively carried and scheduled to be transmitted on different carriers.
  • the method further includes:
  • the access network element generates an SC-MCCH message.
  • the content of the SC-MCCH message sent by the access network in the carrier that schedules the SC-MTCH includes one or more of the following situations:
  • the content of the SC-MCCH message is the same as the content of the SC-MCCH message carried by the SC-MCCH in the cell, and includes at least scheduling information of all services that are being sent in the cell;
  • the content of the SC-MCCH message related to the SC-MTCH includes one or more of the following: scheduling information related to the SC-MTCH, identification information of an MBMS service corresponding to the SC-MTCH, and the MBMS service Related neighbor configuration information.
  • the content that the access network element sends the SC-MCCH message includes at least one of the following methods:
  • the access network element transmits the DCI of the physical downlink control channel PDCCH in the scheduling period of the SC-MTCH, the DCI of the PDCCH is scrambled by using a dedicated RNTI, and the DCI indication of the dedicated RNTI scrambling Scheduling information of the physical downlink shared channel PDSCH carrying the message M;
  • the access network element transmits the DCI of the PDCCH in the scheduling period of the scheduling SC-MTCH, and the DCI of the PDCCH is scrambled by scheduling the RNTI of the SC-MTCH; the access network element is in the DCI
  • the content carried by the PDSCH indicating the scheduling is the message M;
  • the access network element transmits the content of the SC-MCCH message through the medium access control MAC layer control unit CE; the content of the SC-MCCH message is encapsulated in a MAC CE, and the MAC CE is carrying the SC - the MAC protocol data unit PDU of the MTCH data;
  • the access network element carries a message M containing the content of the SC-MCCH message, and is carried on the logical channel SC-MCCH.
  • the SC-MCCH carrying the message M and the SC-MTCH carrying the service data are multiplexed with the MAC PDU by means of MAC layer multiplexing;
  • the message M includes the content of the SC-MCCH message; and the message M is carried by the logical channel SC-MCCH.
  • the number of repeated transmissions of the DCI of the PDCCH is indicated by the system information block and the SC-MCCH message; the number of repetitions of the PDSCH carrying the message M is passed through the system information block, the SC-MCCH message, or The DCI indication of the PDCCH.
  • the service information change notification method of the second multicast service provided by the embodiment of the present disclosure includes: 610:
  • the UE receives the content of the single cell multicast control channel SC-MCCH message in the carrier that schedules the single cell multicast service channel SC-MTCH.
  • the method further includes:
  • the UE receives an SC-MTCH according to an SC-MCCH message.
  • the receiving, by the UE, the content of the SC-MCCH message in the carrier that schedules the SC-MTCH includes at least one of the following manners:
  • the UE When the UE detects the DCI of the PDCCH scrambled by the dedicated RNTI in the scheduling period of the SC-MTCH, it determines that the content of the PDSCH carried by the DCI is the message M, and regards the scheduling of the message M as one time.
  • the scheduling of the SC-MTCH data is performed as well as the processing of its inactivity timer; the message M contains part or all of the contents of the SC-MCCH message;
  • the UE detects that the content of the PDCCH by scheduling the SC-MTCH indicates that the content of the scheduling is the message M, and determines that the content of the scheduling is the message M, and the scheduling of the message M is performed. Treating the inactivity timer as if it were a schedule of SC-MTCH data;
  • the UE After receiving the updated SC-MCCH message content, the UE applies the content of the received updated SC-MCCH message after the time boundary of the next SC-MCCH modification period.
  • the access network element transmits the content of the SC-MCCH message in the carrier that schedules the SC-MTCH, and the SC-MCCH and the SC-MTCH are respectively carried and scheduled to be transmitted on different carriers.
  • the content of the SC-MCCH message sent by the access network in the carrier scheduling the SC-MTCH includes one or more of the following situations:
  • the content of the complete SC-MCCH message that is, the content of the SC-MCCH message is the same as the content of the SC-MCCH message carried by the SC-MCCH in the cell, and includes at least all the transmissions in the cell. Scheduling information for the business.
  • the content of the partial SC-MCCH message the content of the SC-MCCH message related to the SC-MTCH, including one or more of the following: scheduling information related to the SC-MTCH, corresponding to the SC-MTCH The identification information of the MBMS service and the neighboring area configuration information related to the MBMS service.
  • the access network element sends the content of the SC-MCCH message, including at least one of the following methods:
  • the access network element transmits the DCI of the PDCCH in the scheduling period of the SC-MTCH, and the DCI of the PDCCH is scrambled by using a dedicated RNTI, that is, the dedicated RNTI is different from the RNTI used for scheduling the SC-MTCH.
  • the DCI scrambled by the dedicated RNTI indicates scheduling information of a Physical Downlink Shared Channel (PDSCH) carrying the message M.
  • PDSCH Physical Downlink Shared Channel
  • the message M contains the content of the SC-MCCH message.
  • the message M is carried over the logical channel SC-MCCH.
  • the UE When the UE performs the DCI of the PDCCH scrambled by the dedicated RNTI in the scheduling period of the SC-MTCH, it is known that the content of the PDSCH scheduled by the DCI is the message M.
  • the UE After receiving the message M of the dedicated RNTI scheduling, the UE performs the processing of the inactivity timer according to the downlink scheduling of the SC-MTCH, that is, the UE regards the scheduling of the message M as one SC-MTCH data.
  • the scheduling is performed as well as the processing of its inactivity timer; the message M contains part or all of the contents of the SC-MCCH message.
  • the number of repeated transmissions of PDCCH signaling (including but not limited to DCI) in the method is indicated by a system information block and an SC-MCCH message.
  • the number of repetitions of the PDSCH carrying the message M in the method is indicated by a system information block, an SC-MCCH message, or a DCI of the PDCCH in the method.
  • the access network element transmits the DCI of the PDCCH in the scheduling period of the scheduling SC-MTCH, and the DCI of the PDCCH is scrambled by using the RNTI that schedules the SC-MTCH.
  • the access network element indicates, in the DCI, that the content carried by the scheduled PDSCH is the message M.
  • the message M contains the content of the SC-MCCH message, and the message M is carried over the logical channel SC-MCCH.
  • the content of the PDSCH indicating the current scheduling is the message M, which is indicated by the information of one bit in the DCI, if the information of the one bit does not indicate that the content carried by the PDSCH scheduled by the scheduling is the message M. , indicating that the content of the scheduled PDSCH bearer is SC-MTCH data.
  • the UE detects that the DCI of the PDCCH that schedules the SC-MTCH by the foregoing indicates that the content of the scheduling is the message M, and the content of the scheduling is the message M. .
  • the UE After receiving the above message M, the UE performs inactivity according to the downlink scheduling of receiving the SC-MTCH.
  • the processing of the timer that is, the UE performs the processing of its inactivity timer as if the scheduling of the message M is regarded as the scheduling of the SC-MTCH data.
  • the number of repeated transmissions of PDCCH signaling in the method is indicated by a system information block and an SC-MCCH message.
  • the number of repetitions of the PDSCH in the method is indicated by a system information block, an SC-MCCH message, or a DCI of the PDCCH in the method.
  • the access network element sends the content of the SC-MCCH message through a Media Access Control (MAC) layer control unit (Control Element, CE).
  • MAC Media Access Control
  • the content of the SC-MCCH message is encapsulated in a MAC CE, and the MAC CE is in a MAC Protocol Data Unit (PDU) that carries the SC-MTCH data.
  • PDU MAC Protocol Data Unit
  • the access network element carries the MAC CE including the content of the SC-MCCH message in the MAC PDU that carries the SC-MTCH data.
  • the UE receives the content of the SC-MCCH message by receiving the MAC PDU of the SC-MTCH data.
  • the method defined by the format of the MAC CE uses a method defined by the format of the MAC CE of the relevant protocol.
  • a dedicated logical channel identifier (LCID) is defined for this MAC CE, and the UE identifies the MAC CE as the MAC CE containing the content of the SC-MCCH message by using the dedicated LCID.
  • the length of the MAC CE is variable length to accommodate different SC-MCCH message content sizes.
  • the content of the SC-MCCH message is included in the MAC CE in the form of an ASN.1 code, or a defined cell definition. If the SC-MCCH message content is included in the MAC CE in the form of ASN.1 encoding, the ASN.1 encoded code stream is sequentially arranged in the MAC CE in units of bytes.
  • the access network element carries the message M of the SC-MCCH message content, which is carried in the logical channel SC-MCCH, and is multiplexed with the SC-MTCH to be carried in the downlink shared channel (DL-SCH). Finally carried on the PDSCH.
  • DL-SCH downlink shared channel
  • the SC-MCCH carrying the message M and the SC-MTCH carrying the service data multiplex the MAC PDU in a MAC layer multiplexing manner.
  • SC-MCCH and SC-MTCH respectively define their LCID.
  • the network element of the access network may send the content of the SC-MCCH message multiple times in the time period of the same SC-MCCH modification period by using the method provided in this embodiment.
  • the content of multiple SC-MCCH messages sent by the access network element remains unchanged.
  • the UE after receiving the updated SC-MCCH message content, applies the content of the received updated SC-MCCH message after the time boundary of the next SC-MCCH modification period. For example, the SC-MTCH data is received in accordance with the updated SC-MCCH message content received.
  • the access network simultaneously sends the SC-MCCH message in the carrier that schedules the SC-MTCH.
  • Content thereby avoiding the problem that the UE needs to return to the bearer SC-MCCH carrier when receiving the changed SC-MCCH message, and also avoids the capability requirement for the UE to simultaneously receive the SC-MCCH and the SC-MTCH, thereby making the access network
  • the network element separately schedules SC-MTCH and SC-MCCH on different carriers, it may not need to consider the staggered (non-conflict) of SC-MCCH and SC-MTCH scheduling on time domain resources, and improve the flexibility of access network scheduling. Sex.
  • the service information notification method of the second multicast service provided by the embodiment of the present disclosure is applied to the network element side of the core network, as shown in FIG. 10, and includes 710-720:
  • the core network element indicates, in the control plane message MBMS session start request, that the MBMS service indicated in the control plane message has at least one of the following characteristics:
  • the MBMS service is a push type
  • the MBMS service is of a burst type
  • the core network element sends the MBMS session start request to the access network element.
  • the core network element further indicates, in the MBMS session start request, a parameter of the MBMS service, where the parameter includes, but is not limited to, one or more of the following: start time, SAI, and frequency information.
  • the MBMS session start request is used to indicate that the access network element is processed according to the following method:
  • the access network element performs the foregoing processing after receiving the MBMS session start request.
  • the service information notification method of the second multicast service described above is described below by using an exemplary embodiment.
  • the core network element indicates that the MBMS service indicated by the message has one of the following characteristics in the sent message start message (MBMS session start request):
  • the MBMS service is a push type
  • the MBMS service is of a burst type
  • the core network element indicates the access network element, and the MBMS service needs to complete the service information update notification of the MBMS service through the paging mechanism.
  • the core network element in the MBMS session startrequest further indicates one or more of the start time, the SAI, and the frequency information of the MBMS service.
  • the access network element After receiving the MBMS Session Start Request message, the access network element performs the update notification of the multicast service information according to the foregoing method 1, 2, or 3, that is, sends the multicast service information update indication, and indicates the multicast service. Business information.
  • the access network element is processed as follows:
  • the network access network element indicates scheduling information of the multicast service in the SC-MCCH message.
  • the m is the maximum value of the eDRX cycle in the cell, or equal to 1024.
  • the UE After receiving the scheduling information of the multicast service, the UE determines whether the multicast service is a multicast service that is of interest to the multicast service, for example, by comparing the locally saved multicast service identifier TMGI with the received multiple If the multicast service identifier TMGI indicated by the broadcast service scheduling information is the same, the UE considers the multicast service to be the multicast service of interest, and receives the multicast service according to the scheduling information of the MBMS service.
  • the service information notification device of the first type of multicast service which is provided in the embodiment of the present disclosure, is as shown in FIG.
  • the first sending module 111 is configured to send a multicast service information update indication to the UE.
  • the first indication module 112 is configured to indicate to the UE the service information of the multicast service.
  • the indicating, by the first indication module, the service information of the multicast service to the UE includes at least one of the following manners:
  • the first indication module indicates service information of a multicast service in a system information block
  • the first indication module indicates service information of a multicast service in a single cell multicast control channel SC-MCCH message
  • the first indication module indicates service information of the multicast service in the paging message.
  • the sending, by the first sending module, the multicast service information update indication to the UE includes one or more of the following situations:
  • the service identification information is a temporary multicast group identifier TMGI, or is calculated or transformed by the TMGI according to a first predetermined rule.
  • Information including: low N bits in TMGI, high N bits of TMGI, or a result of dividing all bits of TMGI into N bits and performing logical exclusive OR operation between groups;
  • the service area identification information is a service area identifier SAI, or is calculated or transformed according to a second predetermined rule by the SAI.
  • the information includes: low N bits in the SAI, high N bits of the SAI, or a result of dividing the SAI all bits into N bits and performing a logical XOR operation between the groups.
  • the service information of the multicast service indicated by the first indication module includes: one of TMGI and SAI of the multicast service.
  • the service information further includes one of a start and an end time of the multicast service, and if the service information includes an SAI, the service information further includes a sending station.
  • the frequency information of the multicast service if the service information includes a TMGI, the service information further includes one of a start and an end time of the multicast service, and if the service information includes an SAI, the service information further includes a sending station. The frequency information of the multicast service.
  • the first indication module is further configured to indicate scheduling information of the multicast service to the UE in an SC-MCCH message.
  • the device further includes:
  • an update module configured to update a system information block including service information of the multicast service before or after transmitting the multicast service information update indication to the UE.
  • the device further includes:
  • the request receiving module is configured to receive a control plane message MBMS Session Start Request sent by the core network element before the first sending module sends the multicast service information update indication; the control plane message is used to indicate the access network.
  • the network element, the multimedia broadcast multicast MBMS service indicated by the message needs to complete the service information update notification by using the paging mechanism.
  • the first sending module and the first indication module send the multicast service information update indication to the UE according to one of the following manners, and Indicating the UE with the service information of the multicast service:
  • the first sending module sends the multicast service information update indication in a paging occasion in a previous maximum enhanced discontinuous reception eDRX cycle, and the first indication module starts to update the system information in the next largest eDRX cycle thereafter Block, the updated system information block includes the service information S2 of the multicast service;
  • the first sending module sends the multicast service information update indication in a paging occasion within a maximum eDRX cycle, and the first indication module updates the system sent by the system message before sending the multicast service information update indication
  • the information block, the updated system information block contains the service information S2 of the multicast service.
  • the first sending module and the first indication module send the UE to the UE according to one of the following manners. Broadcasting the service information update indication, and indicating the service information of the multicast service to the UE:
  • the first sending module sends the multicast service information update indication in a paging occasion in a previous maximum eDRX cycle, and the first indication module starts to update the SC-MCCH message in the next largest eDRX cycle thereafter, the updated SC
  • the first sending module sends the multicast service information update indication in a paging occasion in a maximum eDRX cycle, and the first indication module updates the SC-MCCH message SM-1 sent through the SC-MCCH channel beforehand.
  • the SC-MCCH message SM-1 includes the service information S2 of the multicast service.
  • the service information notification device of the first type of multicast service which is provided in the embodiment of the present disclosure, as shown in FIG. 12, includes:
  • the first receiving module 121 is configured to receive, by the access network element, the multicast service information update indication and the service information of the multicast service;
  • the second receiving module 122 is configured to receive the multicast service from the access network element according to the service information of the multicast service.
  • the receiving, by the first receiving module, the service information of the multicast service from the access network element includes at least one of the following manners:
  • the first receiving module receives the service information of the multicast service in the single cell multicast control channel SC-MCCH message
  • the first receiving module receives the service information of the multicast service in the paging message.
  • the receiving, by the first receiving module, the multicast service information update indication from the access network element includes one or more of the following situations:
  • the first receiving module receives one bit of information in a downlink control information DCI or a paging message of a physical downlink common control channel PDCCH for paging; if the UE where the first receiving module is located holds service information of any multicast service And the UE where the first receiving module is located is the target UE of the multicast service information update indication;
  • the first receiving module receives the service identification information of the service information in a DCI or a paging message of a PDCCH for paging; the service identification information is a temporary multicast group identifier TMGI, or the first subscription to the TMGI
  • the information obtained by the rule calculation or transformation includes: a low N bits in the TMGI, a high N bits of the TMGI, or a result of dividing the TMGI bits into N bits and performing a logical exclusive OR operation between the groups;
  • the TMGI in the service information saved by the UE where the first receiving module is located matches the TMGI in the service identification information, or if the result of calculating or transforming the TMGI saved by the UE by using the first predetermined rule is the same as that in the service identification information,
  • the UE where the first receiving module is located is the target UE of the multicast service information update indication;
  • the first receiving module receives the service area identifier information of the service information in a DCI or a paging message of a PDCCH for paging; the service area identifier information is a service area identifier SAI, or the second subscription to the SAI
  • the information obtained by the rule calculation or transformation includes: a low N bits in the SAI, a high N bits of the SAI, or a result of dividing the SAI all bits into N bits and performing a logical exclusive OR operation between the groups;
  • the SAI in the service information saved by the UE matches the SAI in the service identifier information, or the result of calculating or transforming the SAI saved by the UE where the first receiving module is located is the same as the service identifier information if the second predetermined rule is used. Then, the UE where the first receiving module is located updates the target UE indicated by the multicast service information.
  • the receiving, by the second receiving module, the multicast service from the access network element according to the service information of the multicast service includes:
  • the second receiving module receives the multicast service according to the service information S2.
  • the matching of the service information S1 and S2 refers to:
  • the TMGI of the service information S1 and S2 is the same; or, if the service information S2 carries the SAI without carrying the TMGI, the SAIs of the service information S1 and S2 are the same.
  • the second receiving module when the second receiving module receives the service information of the multicast service in the system information block, the second receiving module receives the service of the multicast service from the access network element according to one of the following manners: information:
  • the second receiving module receives the system information block immediately after the first receiving module receives the multicast service information update indication.
  • the second receiving module when the second receiving module receives the service information of the multicast service in the SC-MCCH message, the second receiving module receives the multicast service from the access network element according to one of the following manners.
  • Business information :
  • the second receiving module immediately receives the SC-MCCH message SM-1 after receiving the multicast service information update indication by the first receiving module.
  • the second receiving module receives the multicast from the access network element according to the service information S2.
  • Business includes one or more of the following:
  • the second receiving module receives a change notification of the SC-MCCH message or an SC-MCCH message according to the start time, to obtain the multicast service.
  • Scheduling information
  • the second receiving module starts to receive the change notification of the SC-MCCH message from the next SC-MCCH repetition period after receiving the updated system information block or An SC-MCCH message to obtain scheduling information of the multicast service;
  • the second receiving module starts receiving the SC-MCCH update notification or the SC-MCCH message at a specific time to obtain scheduling information of the multicast service, where the specific time is the next system after the UE receives the updated system information block.
  • the m is the cell maximum enhanced discontinuous reception eDRX cycle length.
  • Broadcasting services include a combination of one or more of the following:
  • the second receiving module receives one of the SC-MCCH message change notification and the SC-MCCH message SM-2 according to the start time. Scheduling information of the multicast service;
  • the second receiving module starts receiving one of the SC-MCCH update notification and the SC-MCCH message SM-2 at a specific time, where the specific time is the next H-SFN mod m after receiving the SC-MCCH message SM-1.
  • the next SC-MCCH modification period starting at or after 0, the m being the maximum eDRX period length of the cell or equal to 1024; or the next SC after the UE receives the SC-MCCH message SM-1 - MCCH modification period begins to receive SC-MCCH message change notification or SC-MCCH message SM-2;
  • the MTCH scheduling period starts to receive the SC-MTCH of the multicast service, where m is the length of the maximum eDRX period of the cell or equal to 1024; or, the second receiving module receives the SC-MCCH message SM-1 Receiving an SC-MTCH of the multicast service at a start time of an SC-MCCH cycle;
  • the second receiving module first performs cell reselection and performs reselection with the indicated frequency as the highest priority frequency.
  • the second receiving module receives the multicast from the access network element according to the service information S2.
  • Business includes one or more of the following:
  • the second receiving module receives one of the SC-MCCH message change notification and the SC-MCCH message SM-2 according to the start time. Decoding information of the multicast service;
  • the period length is equal to or equal to 1024, that is, the SC-MCCH modification period or the SC-MCCH modification period after this time starts to receive the SC-MCCH message change notification or the SC-MCCH message SM-2.
  • the service information notification method further includes:
  • the second receiving module performs cell reselection according to the frequency information.
  • the service information change notification device of the first type of multicast service provided in the network element of the access network provided by the embodiment of the present disclosure, as shown in FIG. 13, includes:
  • the second sending module 131 is configured to send in the downlink control information DCI of the physical downlink control channel PDCCH that schedules the single cell multicast service channel SC-MTCH, or the medium access control MAC protocol data unit PDU that carries the SC-MTCH data. Notification of change of single cell multicast control channel SC-MCCH message.
  • the device further includes:
  • the first generation module 132 is configured to generate a change notification of the SC-MCCH message.
  • the content that is indicated by the second sending module in the DCI of the PDCCH of the scheduling SC-MTCH, or the MAC PDU carrying the SC-MTCH data includes a combination of one or more of the following:
  • the second sending module sends the change notification of the SC-MCCH message in one or more of the following situations:
  • the second sending module schedules the DCI of the PDCCH of the SC-MTCH, or the MAC PDU carrying the SC-MTCH data indicates whether the SC-MCCH message is changed;
  • the configuration information related to the SC-MTCH is changed in the SC-MCCH message, including: scheduling information of the SC-MTCH, configuration information of an MBMS service corresponding to the SC-MTCH, and the SC-MTCH correlation Neighbor configuration information of the MBMS service;
  • the DCI of the PDCCH scheduling the SC-MTCH of the SC-MTCH or the MAC PDU carrying the SC-MTCH data indicates whether the content of the SC-MCCH message is related to the SC-MTCH Content change;
  • the second sending module schedules the DCI of the PDCCH of the SC-MTCH when the SC-MTCH-independent SC-MCCH message content is changed, or the MAC PDU carrying the SC-MTCH data indicates that the SC-MCCH message has the SC-MCCH message Update of MTCH-independent content.
  • the timing for the second sending module to send the change notification of the SC-MCCH message includes one or more of the following:
  • the second sending module sends a change notification of the SC-MCCH message in the DCI of the PDCCH that schedules the SC-MTCH, including:
  • the second sending module sends the DCI of the PDCCH that does not indicate the scheduling information of the PDSCH channel carrying the SC-MTCH one or more times, but indicates the change notification of the SC-MCCH message in the DCI; the DCI of the PDCCH uses the scheduling SC
  • the RNTI of the MTCH is scrambled and scheduled for transmission using the configuration of the scheduling period of the SC-MTCH.
  • the second sending module sends, in the MAC PDU that carries the SC-MTCH data, a change notification of the SC-MCCH message, where:
  • the second sending module sends one or more MAC PDUs that do not carry SC-MTCH data, but indicates a change notification of the SC-MCCH message in the MAC PDU.
  • the service information change notification device of the first type of multicast service provided in the user equipment provided by the embodiment of the present disclosure, as shown in FIG. 14, includes:
  • the third receiving module 141 is configured to receive a change notification of the single cell multicast control channel SC-MCCH message
  • the fourth receiving module 142 is configured to receive the SC-MCCH message according to the change notification of the SC-MCCH message.
  • the receiving, by the fourth receiving module, that the SC-MCCH message is received according to the change notification of the received SC-MCCH message includes:
  • the UE in the carrier that carries the SC-MCCH, after receiving the SC-MCCH modification period corresponding to the change notification time of the SC-MCCH message, or after receiving the change notification of the SC-MCCH message
  • the SC-MCCH message is received within the SC-MCCH modification period.
  • the fourth receiving module according to the received change notification of the SC-MCCH message, receiving the SC-MCCH message includes:
  • the fourth receiving module receives the SC-MCCH update message within the agreed SC-MCCH modification period after receiving the change notification of the SC-MCCH message.
  • the fourth receiving module according to the received change notification of the SC-MCCH message, receiving the SC-MCCH message includes:
  • the fourth receiving module preferentially receives the SC-MCCH message at least in the following cases:
  • the change notification of the SC-MCCH message indicates that the change of the SC-MCCH message content is related to the SC-MTCH, when the MBMS service corresponding to the SC-MTCH is stopped, or the MBMS service corresponding to the SC-MTCH When the neighbor information changes.
  • the third sending module 151 is configured to send, in the carrier that schedules the single cell multicast service channel SC-MTCH, the content of the single cell multicast control channel SC-MCCH message, where the SC-MCCH and the SC-MTCH are different respectively. Bearer and scheduled transmission on the carrier.
  • the device further includes:
  • the second generation module 152 is configured to generate the SC-MCCH message.
  • the content of the SC-MCCH message sent by the third sending module in the carrier that schedules the SC-MTCH includes one or more of the following situations:
  • the content of the SC-MCCH message is the same as the content of the SC-MCCH message carried by the SC-MCCH in the cell, and includes at least scheduling information of all services that are being sent in the cell;
  • the content of the SC-MCCH message related to the SC-MTCH includes one or more of the following: scheduling information related to the SC-MTCH, identification information of an MBMS service corresponding to the SC-MTCH, and the MBMS service Related neighbor configuration information.
  • the content that the third sending module sends the SC-MCCH message includes at least one of the following manners:
  • the third sending module sends the DCI of the physical downlink control channel PDCCH in the scheduling period of the SC-MTCH, the DCI of the PDCCH is scrambled by using a dedicated RNTI, and the dedicated RNTI scrambled DCI indication bearer Scheduling information of the physical downlink shared channel PDSCH of the message M;
  • the third sending module sends the DCI of the PDCCH in the scheduling period of the scheduling SC-MTCH, where the DCI of the PDCCH is scrambled by using the RNTI that schedules the SC-MTCH; the access network element is in the DCI. Indicates that the content carried by the PDSCH of the scheduling is the message M;
  • the third sending module sends the content of the SC-MCCH message through the medium access control MAC layer control unit CE; the content of the SC-MCCH message is encapsulated in a MAC CE, and the MAC CE is carrying the SC- The MAC protocol data unit PDU of the MTCH data;
  • the third sending module carries the message M containing the content of the SC-MCCH message in the logical channel SC-MCCH, and the SC-MCCH carrying the message M and the SC-MTCH carrying the service data are duplicated by the MAC layer.
  • a MAC PDU Using a MAC PDU;
  • the message M includes the content of the SC-MCCH message; and the message M is carried by the logical channel SC-MCCH.
  • the number of repeated transmissions of the DCI of the PDCCH is indicated by the system information block and the SC-MCCH message; the number of repetitions of the PDSCH carrying the message M is passed through the system information block, the SC-MCCH message, or The DCI indication of the PDCCH.
  • the service information change notification device of the second multicast service provided in the user equipment provided by the embodiment of the present disclosure, as shown in FIG. 16, includes:
  • the fifth receiving module 161 is configured to receive the content of the single cell multicast control channel SC-MCCH message in the carrier scheduling the single cell multicast traffic channel SC-MTCH.
  • the device further includes:
  • the sixth receiving module 162 is configured to receive the SC-MTCH according to the SC-MCCH message.
  • the fifth receiving module in the carrier that schedules the SC-MTCH, receives the content of the SC-MCCH message, and includes at least one of the following manners:
  • the fifth receiving module when detecting the DCI of the PDCCH scrambled by the dedicated RNTI, in the scheduling period of the SC-MTCH, determines that the content of the PDSCH carried by the DCI is the message M, and schedules the message M this time. Processing the inactivity timer as if it were a schedule of SC-MTCH data; the message M contains part or all of the contents of the SC-MCCH message;
  • the fifth receiving module detects that the content of the scheduled PDCCH is the message M by scheduling the DCI of the PDCCH of the SC-MTCH in the SC-MTCH scheduling period, and determines that the content of the scheduling is the message M, and the message is The scheduling of M is treated as the scheduling of SC-MTCH data, and the processing of its inactivity timer is performed;
  • the fifth receiving module receives the content of the SC-MCCH message by receiving a medium access control MAC protocol data unit PDU of the SC-MTCH data;
  • the fifth receiving module After receiving the updated SC-MCCH message content, the fifth receiving module applies the content of the received updated SC-MCCH message after the time boundary of the next SC-MCCH modification period.
  • the service information notification device of the second multicast service provided by the embodiment of the present disclosure is configured on the core network element, as shown in FIG. 17, and includes:
  • the second indication module 171 is configured to, in the control plane message MBMS session start request, indicate that the MBMS service indicated in the control plane message has at least one of the following characteristics:
  • the MBMS service is a push type
  • the update notification of the MBMS service information needs to be completed by a paging mechanism
  • the MBMS service is of a burst type
  • the fourth sending module 172 is configured to send the MBMS session start request to the access network element.
  • the second indication module is further configured to indicate a parameter of the MBMS service in the MBMS session start request; the parameters include but are not limited to one or more of the following: start time, SAI, frequency information .
  • the MBMS session start request is used to indicate that the access network element is processed according to the following method:
  • the service information notification method of the multicast service causes the access network element to send the multicast service information update indication and the service information indicating the multicast service to the user equipment UE, so that the access network element is scheduled.
  • the SC-MCCH message is notified of the change, it is not necessary to shift the scheduling of all SC-MTCHs on different carriers in the time domain.
  • a UE that does not have the function of simultaneously receiving a plurality of carriers can also receive a change notification of the SC-MCCH message on the carrier on which the SC-MTCH is received, so that the change of the SC-MCCH message is not missed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种多播业务的业务信息、业务信息变更通知方法及装置；所述多播业务的业务信息通知方法包括：接入网网元向用户设备UE发送多播业务信息更新指示；所述接入网网元向所述UE指示多播业务的业务信息。

Description

多播业务的业务信息、业务信息变更通知方法及装置 技术领域
本公开涉及通信领域，尤其涉及一种多播业务的业务信息、业务信息变更通知方法及装置。
背景技术
在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)长期演进(Long Term Evolution，LTE)中，引入了单小区点到多点传输(Single cell point to multipoint，SC-PTM)，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(Multimedia Broadcast Multicast Service，MBMS)业务。
在SC-PTM技术中，定义了单小区多播控制信道(Single Cell-Multicast Control Channel，SC-MCCH)。
在SC-MCCH消息中，指示多播业务的标识和其单小区多播业务信道(Single Cell-Multicast Traffic Channel，SC-MTCH)的调度信息。
在窄带物联网(Narrow Band-internet of things，NB-IoT)中引入SC-PTM主要的目的是为海量的物联网终端提供一种高效的软件更新的传输机制。而软件更新的时间上有周期性和突发性两种可能性，周期性的软件更新可用于非紧急的更新需求，而突发性的软件更新更适合需要尽快更新软件的情况，例如为了修正软件中的安全漏洞等，显然，突发性的软件更新的时间是不确定的。
在网络侧需要推送紧急软件更新时，需要通知UE有关业务的USD信息，而在相关技术的协议中，没有一种能及时推送USD信息的有效机制。另一方面，如果要求UE保持检测SC-MCCH消息的变更通知，则对UE的省电非常不利，因为UE可能在绝大部分情况下接收SC-MCCH消息的变更通知是没有意义的。而对于NB-IoT和增强型机器类通信(enhanced Machine-Type Communications，eMTC)的UE来说，省电是一个关键的性能要求。
另一方面，在NB-IoT或eMTC中，存在多载波的部署场景，即SC-MCCH和SC-MTCH可以在不同的载波中承载以及调度发送。而UE的能力受到成本的限制，不能同时接收不同载波上的信道信号，这样就对基站的调度提出了限制：即在调度SC-MCCH的变更通知，或者SC-MCCH消息时，在其他的载波上不能同时调度SC-MTCH，否则UE无法接收SC-MCCH变更通知或SC-MTCH数据，从而造成了可能漏掉部分数据，或者不能接收SC-MCCH变更的问题。
发明内容
本公开实施例提供一种多播业务的业务信息、业务信息变更通知方法及装置，适用于 NB-IoT和eMTC的单小区多播业务信息的通知和SC-MCCH消息变更。
本公开提供如下技术方案。
一种多播业务的业务信息通知方法，包括：
接入网网元向用户设备UE发送多播业务信息更新指示；
所述接入网网元向所述UE指示多播业务的业务信息。
可选地，所述接入网网元向所述UE指示多播业务的业务信息包括以下至少一种方式：
所述接入网网元在系统信息块中指示多播业务的业务信息；
所述接入网网元在单小区多播控制信道SC-MCCH消息中指示多播业务的业务信息；
所述接入网网元在寻呼消息中指示多播业务的业务信息。
可选地，所述接入网网元向UE发送多播业务信息更新指示包括以下情况的一或多种：
在用于寻呼的物理下行公共控制信道PDCCH的下行控制信息DCI中或寻呼消息中发送一个比特的信息；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务标识信息；所述业务标识信息为临时多播组标识TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务区域标识信息；所述业务区域标识信息为业务区域标识SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
可选地，所述接入网网元所指示的多播业务的业务信息包括：所述多播业务的TMGI、SAI至少之一。
可选地，如果所述业务信息包含TMGI，则所述业务信息还包括所述多播业务的开始、结束时间至少之一，如果所述业务信息包含SAI，则所述业务信息还包含发送所述多播业务的频率信息。
可选地，所述的业务信息通知方法还包括：
所述接入网网元在SC-MCCH消息中指示所述多播业务的调度信息。
可选地，所述的业务信息通知方法还包括：
所述接入网网元在向UE发送所述多播业务信息更新指示之前或之后，更新包含所述多播业务的业务信息的系统信息块。
可选地，所述接入网网元向UE发送多播业务信息更新指示前还包括：
所述接入网网元接收到核心网网元发送的控制面消息多媒体广播多播MBMS会话开始请求；所述控制面消息用于指示所述接入网网元，通过寻呼机制完成该控制面消息中所指示的MBMS业务的业务信息更新通知。
可选地，所述接入网网元在系统信息块中指示多播业务的业务信息时，所述接入网网 元根据如下方式之一向UE发送多播业务信息更新指示、及向UE指示所述多播业务的业务信息：
接入网网元在前一个最大增强型非连续接收eDRX周期内的寻呼时机中发送所述的多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2；所述的最大eDRX周期的范围为从系统超帧号H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
接入网网元在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在发送所述多播业务信息更新指示之前，更新通过系统消息发送的所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2。
可选地，所述接入网网元在单小区多播控制信道SC-MCCH消息中指示多播业务的业务信息时，所述接入网网元根据如下方式之一向UE发送多播业务信息更新指示、及向UE指示所述多播业务的业务信息：
接入网网元在前一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述SC-MCCH消息，更新的SC-MCCH消息SM-2包含有所述多播业务的业务信息S2；所述最大eDRX周期的范围为从H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
接入网网元在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此之前，更新通过SC-MCCH信道发送的SC-MCCH消息SM-1，所述SC-MCCH消息SM-1包含有所述多播业务的业务信息S2。
一种多播业务的业务信息通知方法，包括：
用户设备UE从接入网网元接收多播业务信息更新指示以及多播业务的业务信息；
所述UE根据所述多播业务的业务信息从所述接入网网元接收多播业务。
可选地，所述UE从接入网网元接收多播业务的业务信息包括以下至少一种方式：
所述UE在系统信息块中接收多播业务的业务信息；
所述UE在单小区多播控制信道SC-MCCH消息中接收多播业务的业务信息；
所述UE在寻呼消息中接收多播业务的业务信息。
可选地，所述UE从接入网网元接收所述多播业务信息更新指示包括以下情况的一或多种：
所述UE在用于寻呼的物理下行公共控制信道PDCCH的下行控制信息DCI或寻呼消息中接收一个比特的信息；如果本UE保存有任何多播业务的业务信息，则本UE为此多播业务信息更新指示的目标UE；
所述UE在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务标识信息；所述业务标识信息为临时多播组标识TMGI，或对TMGI按照第一预定规则进行计算 或变换得到的信息，包括：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果本UE保存的业务信息中的TMGI与业务标识信息中的TMGI匹配，或如果采用第一预定规则对本UE保存的TMGI进行计算或变换后的结果与业务标识信息中的相同，则UE为此多播业务信息更新指示的目标UE；
所述UE在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务区域标识信息；所述业务区域标识信息为业务区域标识SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果本UE保存的业务信息中的SAI与业务标识信息中的SAI匹配，或如果采用第二预定规则对本UE保存的SAI进行计算或变换后的结果与业务标识信息中的相同，则UE为此多播业务信息更新指示的目标UE。
可选地，所述UE根据所述多播业务的业务信息从所述接入网网元接收多播业务包括：
当本UE为目标UE时，比较本UE保存的业务信息S1与获取的业务信息S2，如果业务信息S1与S2相匹配，则UE根据所述业务信息S2接收所述多播业务。
可选地，所述业务信息S1与S2相匹配是指：
如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，当所述UE在系统信息块中接收多播业务的业务信息时，UE根据如下方式之一从接入网网元接收所述多播业务的业务信息：
UE在接收到所述多播业务信息更新指示后的第一个系统超帧号H-SFN mod m＝0的时刻开始接收更新的系统信息块；m为最大增强型非连续接收eDRX周期的长度或等于1024；
UE在接收到所述多播业务信息更新指示后，立刻接收所述系统信息块。
可选地，当所述UE在SC-MCCH消息中接收多播业务的业务信息时，UE根据如下方式之一从接入网网元接收所述多播业务的业务信息：
UE在接收到所述多播业务信息更新指示后的第一个H-SFN mod m＝0的时刻开始接收SC-MCCH消息SM-1；m为最大eDRX周期的长度或等于1024；
UE在接收到所述多播业务信息更新指示后，立刻接收所述SC-MCCH消息SM-1。
可选地，当所述UE在系统信息块中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息；
如果所述业务信息S2中没有携带所述多播业务的开始时间，则UE从接收到更新的系统信息块后的下一个SC-MCCH重复周期开始接收SC-MCCH消息的变更通知或 SC-MCCH消息，以获取所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知或SC-MCCH消息，以获取所述多播业务的调度信息，所述特定时间为UE接收到更新的系统信息块后的下一个H-SFN mod m＝0的时刻，所述m为小区最大eDRX周期长度。
可选地，当所述UE在SC-MCCH消息中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式的组合：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息的变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为接收到SC-MCCH消息SM-1之后的下一个H-SFN mod m＝0时刻开始或在此之后的下一个SC-MCCH修改周期，所述m为小区最大eDRX周期长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2；
如果SC-MCCH消息SM1中携带有多播业务的调度信息，则UE从下一个H-SFN mod m＝0时刻开始，或从该时刻之后的第一个该多播业务的SC-MTCH调度周期开始接收所述多播业务的SC-MTCH，所述m为小区最大eDRX周期的长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH周期的起始时刻开始接收所述多播业务的SC-MTCH；
如果SC-MCCH消息SM-1中指示了频率信息，则UE首先进行小区重选，并以此指示的频率为最高优先级频率进行重选。
可选地，当所述UE在寻呼消息中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为下一个H-SFN mod m＝0时刻，所述m为小区最大eDRX周期长度或等于1024，即从此时刻开始的SC-MCCH修改周期或此时刻之后的SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2。
可选地，所述的业务信息通知方法还包括：
如果所述多播业务的业务信息中携带了所述多播业务的频率信息，则UE根据此频率信息进行小区重选。
一种多播业务的业务信息变更通知方法，包括：
接入网网元在调度单小区多播业务信道SC-MTCH的物理下行控制信道PDCCH的下行控制信息DCI中，或承载SC-MTCH数据的介质访问控制MAC协议数据单元PDU中，发送单小区多播控制信道SC-MCCH消息的变更通知。
可选地，所述接入网网元在所述调度SC-MTCH的PDCCH的DCI中，或承载SC-MTCH数据的MAC PDU中指示的内容包括以下内容的一种或多种的组合：
一个比特的指示，以指示是否有SC-MCCH消息的更新；
一个比特的指示，以指示SC-MCCH消息的更新是否与所述SC-MTCH相关，或指示SC-MCCH消息是否有与所述SC-MTCH相关的内容更新。
一个比特的指示，以指示SC-MCCH消息内容中是否有与所述SC-MTCH无关的内容的更新。
可选地，所述接入网网元在如下情况下的一种或多种发送所述SC-MCCH消息的变更通知：
在SC-MCCH消息有变更时，所述接入网网元调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息是否有变更；
在SC-MCCH消息中与所述SC-MTCH相关的配置信息有变更时；包括：所述SC-MTCH的调度信息，所述SC-MTCH对应的MBMS业务的配置信息，所述SC-MTCH相关的MBMS业务的邻区配置信息；所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU指示所述SC-MCCH消息内容是否有与所述SC-MTCH相关的内容变更；
接入网网元在所述SC-MTCH无关的SC-MCCH消息内容发生变更时，调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息有与所述SC-MTCH无关的内容的更新。
可选地，所述接入网网元发送所述SC-MCCH消息的变更通知的时机包括如下一或多种：
所述SC_MCCH消息发生变更的SC-MCCH修改周期内；
在所述SC-MCCH消息发生变更的SC-MCCH修改周期的前一个SC-MCCH修改周期内。
可选地，所述接入网网元在调度SC-MTCH的PDCCH的DCI中，发送SC-MCCH消息的变更通知包括：
接入网网元发送一次或多次不指示承载SC-MTCH的PDSCH信道的调度信息的PDCCH的DCI，但在此DCI中指示SC-MCCH消息的变更通知；所述PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰，并使用所述SC-MTCH的调度周期的配置进行调度发送。
可选地，所述接入网网元在承载SC-MTCH数据的MAC PDU中，发送SC-MCCH消息的变更通知包括：
接入网网元发送一次或多次不承载SC-MTCH数据的MAC PDU，但在此MAC PDU中指示SC-MCCH消息的变更通知。
一种多播业务的业务信息变更通知方法，包括：
用户设备UE接收单小区多播控制信道SC-MCCH消息的变更通知；
所述UE根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
可选地，所述UE根据接收到的SC-MCCH消息的变更通知接收SC-MCCH消息包括：
所述UE在承载SC-MCCH的载波中，在接收到所述SC-MCCH消息的变更通知时刻所对应的SC-MCCH修改周期，或在接收到所述SC-MCCH消息的变更通知的时刻之后的SC-MCCH修改周期内接收SC-MCCH消息。
可选地，所述UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
当SC-MCCH和SC-MTCH在不同的载波，UE接收到SC-MCCH消息的变更通知后，在约定的SC-MCCH修改周期内接收SC-MCCH更新消息。
可选地，UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
在SC-MCCH消息调度与UE正在接收的SC-MTCH调度资源在时域上冲突时，至少在下面情况下，UE优先接收SC-MCCH消息：
所述SC-MCCH消息的变更通知指示所述SC-MCCH消息内容的变更与所述SC-MTCH相关时、所述SC-MTCH相应的MBMS业务停止时、或所述SC-MTCH相应的MBMS业务的邻区信息发生变更时。
一种多播业务的业务信息变更通知方法，包括：
接入网网元在调度单小区多播业务信道SC-MTCH的载波中，发送单小区多播控制信道SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
可选地，所述接入网网元在调度SC-MTCH的载波中发送的SC-MCCH消息的内容包括下述情况的一或多种：
所述SC-MCCH消息的内容与该小区内发送的SC-MCCH承载的SC-MCCH消息的内容相同，至少包括该小区内正在进行发送的所有业务的调度信息；
与所述SC-MTCH相关的SC-MCCH消息的内容，包括以下一种或多种：与所述SC-MTCH相关的调度信息、与此SC-MTCH相应的MBMS业务的标识信息、与该MBMS业务相关的邻区配置信息。
可选地，所述接入网网元发送SC-MCCH消息的内容包括以下至少一种方式：
方式一：接入网网元在所述SC-MTCH的调度周期中，发送物理下行控制信道PDCCH 的DCI，所述PDCCH的DCI使用专用的RNTI进行加扰，所述专用RNTI加扰的DCI指示承载消息M的物理下行分享信道PDSCH的调度信息；
方式二：接入网网元在所述调度SC-MTCH的调度周期中，发送PDCCH的DCI，该PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰；接入网网元在该DCI中指示此次调度的PDSCH所承载的内容为消息M；
方式三：接入网网元通过介质访问控制MAC层控制单元CE发送所述SC-MCCH消息的内容；所述SC-MCCH消息的内容包装在MAC CE中，所述MAC CE在承载所述SC-MTCH数据的MAC协议数据单元PDU中；
方式四：接入网网元将包含SC-MCCH消息内容的消息M，承载在逻辑信道SC-MCCH中，承载消息M的SC-MCCH与承载业务数据的SC-MTCH以MAC层复用的方法复用MAC PDU；
方式一和方式二中，所述消息M包含所述SC-MCCH消息的内容；所述消息M通过逻辑信道SC-MCCH承载。
可选地，方式一和方式二中，PDCCH的DCI的重复发送次数通过系统信息块、SC-MCCH消息指示；承载所述消息M的PDSCH的重复次数通过系统信息块、SC-MCCH消息、或所述PDCCH的DCI指示。
一种多播业务的业务信息变更通知方法，包括：
用户设备UE在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
可选地，所述UE在调度SC-MTCH的载波中，接收SC-MCCH消息的内容包括以下至少一种方式：
UE在所述SC-MTCH的调度周期内，检测到通过专用RNTI加扰的PDCCH的DCI时，确定该DCI所调度的PDSCH承载的内容为消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；所述消息M包含所述SC-MCCH消息的部分或全部内容；
UE在SC-MTCH调度周期内，检测到通过调度所述SC-MTCH的PDCCH的DCI指示此次调度的内容为消息M时，确定此次调度内容是消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；
UE通过接收所述SC-MTCH数据的介质访问控制MAC协议数据单元PDU，接收到所述SC-MCCH消息的内容；
UE接收到所述更新的SC-MCCH消息内容后，从下一个SC-MCCH修改周期的时间边界之后应用所接收到的更新的SC-MCCH消息的内容。
一种多播业务的业务信息通知方法，包括：
核心网网元在控制面消息多媒体广播多播MBMS会话开始请求中，指示所述控制面消息中所指示的MBMS业务至少具有如下特性之一：
该MBMS业务为推送类型；
该MBMS业务信息的更新通知需要通过寻呼机制完成；
该MBMS业务为突发类型；
所述核心网网元发送所述MBMS会话开始请求给接入网网元。
可选地，所述的业务信息通知方法还包括：
所述核心网网元在所述MBMS会话开始请求中指示所述MBMS业务的参数；所述参数包括但不限于以下一种或多种：开始时间、SAI、频率信息。
可选地，所述MBMS会话开始请求用于指示所述接入网网元按照下列的方法处理：
通过调度寻呼消息的下行控制信息DCI或者寻呼消息，在系统超帧号H-SFN＝0到H-SFN＝m-1的范围内的寻呼时机中，指示用户设备UE在接收此DCI或寻呼消息之后的下一个H-SFN mod m＝0时刻开始，接收SC-MCCH消息；在所述SC-MCCH消息中指示所述多播业务的调度信息；所述m为小区中eDRX周期的最大值，或等于1024。
一种多播业务的业务信息通知装置，设置于接入网网元，包括：
第一发送模块，设置为向用户设备UE发送多播业务信息更新指示；
第一指示模块，设置为向所述UE指示多播业务的业务信息。
一种多播业务的业务信息通知装置，设置于用户设备，包括：
第一接收模块，设置为从接入网网元接收多播业务信息更新指示以及多播业务的业务信息；
第二接收模块，设置为根据所述多播业务的业务信息从所述接入网网元接收多播业务。
一种多播业务的业务信息变更通知装置，设置于接入网网元，包括：
第二发送模块，设置为在调度单小区多播业务信道SC-MTCH的物理下行控制信道PDCCH的下行控制信息DCI中，或承载SC-MTCH数据的介质访问控制MAC协议数据单元PDU中，发送单小区多播控制信道SC-MCCH消息的变更通知。
一种多播业务的业务信息变更通知装置，设置于用户设备，包括：
第三接收模块，设置为接收单小区多播控制信道SC-MCCH消息的变更通知；
第四接收模块，设置为根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
一种多播业务的业务信息变更通知装置，设置于接入网网元，包括：
第三发送模块，设置为在调度单小区多播业务信道SC-MTCH的载波中，发送单小区 多播控制信道SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
一种多播业务的业务信息变更通知装置，设置于用户设备，包括：
第五接收模块，设置为在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
一种多播业务的业务信息通知装置，设置于核心网网元，包括：
第二指示模块，设置为在控制面消息多媒体广播多播MBMS会话开始请求中，指示所述控制面消息中所指示的MBMS业务至少具有如下特性之一：
该MBMS业务为推送类型；
该MBMS业务信息的更新通知需要通过寻呼机制完成；
该MBMS业务为突发类型；
第四发送模块，设置为发送所述MBMS会话开始请求给接入网网元。
本公开实施例可以使UE及时获知多播业务的变更。
一种存储介质，设置存储程序代码，所述程序代码用于执行如上任一项所述的方法。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。本公开的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本公开技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。
图1是相关技术中SC-MCCH调度与修改周期示意图；
图2是相关技术中SC-MTCH调度示意图；
图3是本公开实施例中第一种多播业务的业务信息通知方法应用在接入网网元侧时的流程图；
图4是本公开实施例中第一种多播业务的业务信息通知方法应用在UE侧时的流程图；
图5是本公开实施例中第一种多播业务的业务信息变更通知方法应用在接入网网元侧时的流程图；
图6是本公开实施例中第一种多播业务的业务信息变更通知方法应用在UE侧时的流程图；
图7是实施例4所述方法的示意图；
图8是本公开实施例中第二种多播业务的业务信息变更通知方法应用在接入网网元 侧时的流程图；
图9是本公开实施例中第二种多播业务的业务信息变更通知方法应用在UE侧时的流程图；
图10是本公开实施例中第二种多播业务的业务信息通知方法应用在核心网网元侧时的流程图；
图11是本公开实施例中设置于接入网网元的第一种多播业务的业务信息通知装置的示意图；
图12是本公开实施例中设置于UE的第一种多播业务的业务信息通知装置的示意图；
图13是本公开实施例中设置于接入网网元的第一种多播业务的业务信息变更通知装置的示意图；
图14是本公开实施例中设置于UE的第一种多播业务的业务信息变更通知装置的示意图；
图15是本公开实施例中设置于接入网网元的第二种多播业务的业务信息变更通知装置的示意图；
图16是本公开实施例中设置于UE的第二种多播业务的业务信息变更通知装置的示意图；
图17是本公开实施例中设置于核心网网元的第二种多播业务的业务信息通知装置的示意图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚明白，下文中将结合附图对本公开的实施例进行详细说明。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任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
在3GPP的MBMS业务中，网络侧通过用户业务描述(User Service Description，USD)指示用户设备(User Equipment，UE)有关MBMS业务的信息。这些信息包括：临时多播组标识(temporary Multicast Group Identity，TMGI)，业务的开始时间和结束时间，发送该业务的业务区域标识(Service Area Identity，SAI)，以及发送该业务的无线信息(Frequency)。网络侧通过应用层通信方式将MBMS业务的USD信息发送给UE，所述的应用层通信方式是相对于无线接入网的接入层(Access Stratum，AS)而言的。通常的应用层通信方式包括通过超文本传输协议(HyperText Transfer Protocol，HTTP)、或短消息(Short Message Service，SMS)等机制将USD发送给UE。
在SC-PTM技术中，SC-MCCH为逻辑性信道，用于承载SC-MCCH消息，接入网网 元通过SC-MCCH消息指示UE通过SC-PTM方式在无线接口传输的MBMS业务的调度信息，用于UE在无线接口接收需要接收的MBMS业务数据。在SC-MCCH消息中所指示的SC-MTCH的调度信息包括调度周期的长度、调度窗口的起始位置和长度、以及一个非活动定时器的长度。接入网网元在SC-MTCH的调度周期内的调度窗口进行调度。UE根据此调度信息接收此SC-MTCH。
接入网网元通过一种SC-MCCH变更通知机制，在SC-MCCH消息发生更新时指示UE SC-MCCH消息的变更。UE通过此变更通知机制，可获知SC-MCCH消息发生了变更，从而可以开始接收SC-MCCH消息，以检测SC-MCCH消息中是否携带了其感兴趣的MBMS业务的调度信息，如果有，则UE根据此调度信息开始接收MBMS业务数据。
在相关技术中，定义了SC-MCCH修改周期，SC-MCCH消息只在SC-MCCH修改周期的边界开始发生更新。所述的SC-MCCH变更通知机制中，接入网网元在发生更新的SC-MCCH消息发送之前，通过物理下行公共控制信道(Physical Downlink Control Channel，PDCCH)的下行控制信息(Downlink Control Information，DCI)指示SC-MCCH消息变更，用于SC-MCCH消息的变更通知的DCI使用专用的扰码(SC-N-RNTI)加扰。
如图1所示，为SC-MCCH修改周期与调度的示意图，一个SC-MCCH修改周期中可以包含多个SC-MCCH重复周期，比如图1中为两个；一个SC-MCCH重复周期中，起始无线子帧的起点与该重复周期的起点之间存在一个偏移量(Offset)，图1中斜线填充部分是持续期间(Duration)，是SC-MCCH可能被调度的区间。
如图2所示，为SC-MTCH调度周期(Period)的示意图；一个SC-MTCH调度周期中，调度窗口(Onduration)的起点和该调度周期的起点之间存在一个偏移量，图1中斜线填充部分是调度窗口，网格线填充部分是非活动定时器(Inactivity timer)。
本公开实施例提供的第一种多播业务的业务信息通知方法，应用在接入网网元侧时如图3所示，包括110～120：
110、接入网网元向UE发送多播业务信息更新指示；
120、所述接入网网元向所述UE指示多播业务的业务信息。
可选地，所述接入网网元向所述UE指示多播业务的业务信息可以但不限于包括以下至少一种方式：
所述接入网网元在系统信息块中指示多播业务的业务信息；
所述接入网网元在SC-MCCH消息中指示多播业务的业务信息；
所述接入网网元在寻呼消息中指示多播业务的业务信息。
可选地，所述接入网网元向UE发送多播业务信息更新指示可以但不限于包括以下情况的一种或多种：
在用于寻呼的PDCCH的DCI中或寻呼消息中发送一个比特的信息；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务标识信息；所 述业务标识信息为TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括但不限于：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务区域标识信息；所述业务区域标识信息为SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括但不限于：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
可选地，所述接入网网元所指示的多播业务的业务信息包括但不限于：所述多播业务的TMGI、SAI至少之一。
本可选方案中，如果所述业务信息包含TMGI，则所述业务信息还可以包括所述多播业务的开始、结束时间至少之一，如果所述业务信息包含SAI，则所述业务信息还可以包含发送所述多播业务的频率信息。
可选地，所述的业务信息通知方法还包括：
所述接入网网元在SC-MCCH消息中指示所述多播业务的调度信息。
可选地，所述的业务信息通知方法还包括：
所述接入网网元在向UE发送所述多播业务信息更新指示之前或之后，更新包含所述多播业务的业务信息的系统信息块。
可选地，所述接入网网元向UE发送多播业务信息更新指示前还包括：
所述接入网网元接收到核心网网元发送的控制面消息MBMS Session Start Request；所述控制面消息用于指示所述接入网网元，通过寻呼机制完成该控制面消息中所指示的MBMS业务的业务信息更新通知。
可选地，所述接入网网元在系统信息块中指示多播业务的业务信息时，所述接入网网元根据如下方式之一向UE发送多播业务信息更新指示、及向所述UE指示所述多播业务的业务信息：
接入网网元在前一个最大增强型非连续接收eDRX周期内的寻呼时机中发送所述的多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2；所述的最大eDRX周期的范围为从系统超帧号H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
接入网网元在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在发送所述多播业务信息更新指示之前，更新通过系统消息发送的所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2。
可选地，所述接入网网元在单小区多播控制信道SC-MCCH消息中指示多播业务的业务信息时，所述接入网网元根据如下方式之一向UE发送多播业务信息更新指示、及向所述UE指示所述多播业务的业务信息：
接入网网元在前一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述的SC-MCCH消息，更新的SC-MCCH消息SM-2包含有所述多播业务的业务信息S2；所述最大eDRX周期的范围为从H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
接入网网元在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此之前，更新通过SC-MCCH信道发送的SC-MCCH消息SM-1，所述SC-MCCH消息SM-1包含有所述多播业务的业务信息S2。
本公开实施例提供的第一种多播业务的业务信息通知方法，应用在UE侧时如图4所示，包括210～220：
210、UE从接入网网元接收所述多播业务信息更新指示以及所述多播业务的业务信息；
220、所述UE根据所述多播业务的业务信息从所述接入网网元接收多播业务。
可选地，所述UE从接入网网元接收多播业务的业务信息可以但不限于包括以下至少一种方式：
所述UE在系统信息块中接收多播业务的业务信息；
所述UE在SC-MCCH消息中接收多播业务的业务信息；
所述UE在寻呼消息中接收多播业务的业务信息。
可选地，所述UE从接入网网元接收所述多播业务信息更新指示可以但不限于包括以下情况的一或多种：
所述UE在用于寻呼的PDCCH的DCI或寻呼消息中接收一个比特的信息；如果本UE保存有任何多播业务的业务信息，则本UE为此多播业务信息更新指示的目标UE；
所述UE在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务标识信息；所述业务标识信息为TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括但不限于：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果本UE保存的业务信息中的TMGI与业务标识信息中的TMGI匹配，或如果采用第一预定规则对本UE保存的TMGI进行计算或变换后的结果与业务标识信息中的相同，则UE为此多播业务信息更新指示的目标UE；
所述UE在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务区域标识信息；所述业务区域标识信息为SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括但不限于：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果本UE保存的业务信息中的SAI与业务标识信息中的SAI匹配，或如果采用第二预定规则对本UE保存的SAI进行计算或变换后的结果与业务标识信息中的相同，则UE为此多播业务信息更新指示的目标UE。
可选地，所述UE根据所述多播业务的业务信息从所述接入网网元接收多播业务包括：
当本UE为目标UE时，比较本UE保存的业务信息S1与获取的业务信息S2，如果业务信息S1与S2相匹配，则UE根据所述业务信息S2接收所述多播业务。
其中，所述业务信息S1与S2相匹配可以是指：
如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，当所述UE在系统信息块中接收多播业务的业务信息时，UE根据如下方式之一从接入网网元接收所述多播业务的业务信息：
UE在接收到所述多播业务信息更新指示后的第一个系统超帧号H-SFN mod m＝0的时刻开始接收更新的系统信息块；m为最大增强型非连续接收eDRX周期的长度或等于1024；
UE在接收到所述多播业务信息更新指示后，立刻接收所述系统信息块。
可选地，当所述UE在SC-MCCH消息中接收多播业务的业务信息时，UE根据如下方式之一从接入网网元接收所述多播业务的业务信息：
UE在接收到所述多播业务信息更新指示后的第一个H-SFN mod m＝0的时刻开始接收SC-MCCH消息SM-1；m为最大eDRX周期的长度或等于1024；
UE在接收到所述多播业务信息更新指示后，立刻接收所述SC-MCCH消息SM-1。
可选地，当所述UE在系统信息块中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息；
如果所述业务信息S2中没有携带所述多播业务的开始时间，则UE从接收到更新的系统信息块后的下一个SC-MCCH重复周期开始接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知或SC-MCCH消息，以获取所述多播业务的调度信息，所述特定时间为UE接收到更新的系统信息块后的下一个H-SFN mod m＝0的时刻，所述m为小区最大eDRX周期长度；mod表示求余运算。
本可选方案中，所述方法还可以包括：
如果所述多播业务的业务信息中携带了所述多播业务的频率信息，则UE根据此频率信息进行小区重选。
可选地，当所述UE在SC-MCCH消息中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式的组合：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息的变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为接收到SC-MCCH消息SM-1之后的下一个H-SFN mod m＝0时刻开始或在此之后的下一个SC-MCCH修改周期，所述m为小区最大eDRX周期长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2；
如果SC-MCCH消息SM1中携带有多播业务的调度信息，则UE从下一个H-SFN mod m＝0时刻开始，或从该时刻之后的第一个该多播业务的SC-MTCH调度周期开始接收所述多播业务的SC-MTCH，所述m为小区最大eDRX周期的长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH周期的起始时刻开始接收所述多播业务的SC-MTCH。
如果SC-MCCH消息SM-1中指示了频率信息，则UE首先进行小区重选，并以此指示的频率为最高优先级频率进行重选。
可选地，当所述UE在寻呼消息中接收多播业务的业务信息时，所述UE根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则UE根据所述开始时间，接收SC-MCCH消息变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息；
UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为下一个H-SFN mod m＝0时刻，所述m为小区最大eDRX周期长度或等于1024，即从此时刻开始的SC-MCCH修改周期或此时刻之后的SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2。
本可选方案中，所述方法还可以包括：
如果所述多播业务的业务信息中携带了所述多播业务的频率信息，则UE根据此频率信息进行小区重选。
下面用3个示例性的实施例说明上述第一种多播业务的业务信息通知方法。
实施例1：
接入网网元发送多播业务信息更新指示，并在系统信息块(System Information Block，SIB)中指示多播业务的业务信息。
UE接收所述多播业务信息更新指示以及所述多播业务的业务信息，并根据所述多播业务的业务信息接收多播业务。
可选地，所述接入网网元发送多播业务信息更新指示包括以下情况的一或多种：
(1)在用于寻呼的PDCCH的DCI或寻呼消息中发送一个比特的指示信息，此一个比特的指示信息表示是否有多播业务信息的更新。
该情况中，接收到上述一个比特的指示信息(即多播业务信息更新指示)，且保存有任何多播业务的业务信息的UE为此多播业务信息更新指示的目标UE。
(2)在用于寻呼的PDCCH的DCI或寻呼消息中，指示所述业务信息的业务标识信息。所述业务标识信息为TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括但不限于：TMGI中的低N个比特、TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
该情况中，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息中的业务标识信息，则认为接收到多播业务信息更新指示；接收到多播业务信息更新指示的UE比较其保存的业务信息中的TMGI与多播业务信息更新指示中的TMGI，如果匹配(相同)，或如果采用第一预定规则对TMGI进行计算或变换后的结果与业务标识信息相同，则UE为此多播业务信息更新指示的目标UE。
(3)在用于寻呼的PDCCH的DCI或寻呼消息中，指示所述业务信息的业务区域标识信息。所述业务区域标识信息为业务区域标识SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括但不限于：SAI中的低N个比特、SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
该情况中，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息的业务区域标识信息，则认为接收到多播业务信息更新指示；接收到多播业务信息更新指示的UE比较其保存的业务信息中的SAI与业务信息更新指示中的SAI，如果匹配(相同)，或如果采用第二预定规则对SAI进行计算或变换后的结果与业务区域标识信息相同，则UE为此业务信息更新指示的目标UE。
可选地，接入网网元在系统信息块中所指示的多播业务的业务信息S2包括：所述多播业务的TMGI、SAI至少之一。
可选地，如果业务信息S2包含TMGI，则业务信息S2还包括所述多播业务的开始、结束时间至少之一，如果业务信息S2包含SAI，则业务信息S2还包含发送所述多播业务的频率信息。
可选地，UE根据如下方式之一接收所述多播业务的业务信息，以及接入网网元根据如下方式之一发送所述多播业务信息更新指示，及多播业务的业务信息：
(1)UE在接收到所述多播业务信息更新指示后的第一个H-SFN mod m＝0的时刻开始接收更新的系统信息块。
这种方法中，接入网网元在前一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2。所述最大eDRX周期的范围为从H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，所述m为最大eDRX周期的长度或等于1024。
(2)UE在接收到所述多播业务信息更新指示后，立刻接收所述系统信息块。
在这种方法中，接入网网元在一个最大eDRX周期内的寻呼时机(Paging Occasion，PO)中发送所述多播业务信息更新指示，并在发送所述多播业务信息更新指示之前，更新通过系统消息发送的所述系统信息块，更新的系统信息块包含有所述多播业务的业务信 息S2。
可选地，所述UE接收所述多播业务信息更新指示以及所述多播业务的业务信息，并根据所述多播业务的业务信息接收多播业务包括：
所述目标UE接收到上述的多播业务信息更新指示后，接收所述系统信息块，获取业务信息S2，并比较UE保存的业务信息S1与获取的业务信息S2，如果业务信息S1与S2相匹配，则UE根据所述业务信息S2接收所述多播业务。
本可选方案中，所述业务信息S1和S2相匹配可以是指：如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，所述UE根据所述业务信息S2接收所述多播业务包括以下一或多种方式：
(1)所述业务信息S2中携带了所述多播业务的开始时间，UE根据所述开始时间，接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息。接入网网元在所述SC-MCCH消息中指示所述多播业务的调度信息。
(2)所述业务信息S2中没有携带所述多播业务的开始时间，UE从接收到所述更新的系统信息块之后的下一个SC-MCCH重复周期开始接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息。接入网网元在所述SC-MCCH消息中指示所述多播业务的调度信息。
(3)UE在特定的时间开始接收SC-MCCH更新通知或SC-MCCH消息，所述特定时间为UE接收到所述更新的系统信息块之后下一个H-SFN mod m＝0的时刻，所述m为小区最大增强型非连续接收(enhanced Discontinuous Reception，eDRX)周期长度，即从此时刻开始的SC-MCCH修改周期，或此时刻之后第一个的SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息，以获取所述多播业务的调度信息。接入网网元在所述SC-MCCH消息中指示所述多播业务的调度信息。
可选地，所述方法还包括：如果所述业务信息S2中携带了所述多播业务的频率信息，则UE根据此频率信息进行小区重选。
可选地，在本实施例中，所述方法还包括：接入网网元在上述的SC-MCCH消息中指示所述多播业务的调度信息，UE根据所述多播业务的调度信息接收该多播业务的SC-MTCH。
可选地，所述方法还包括：接入网网元在发送所述多播业务信息更新指示之前或之后，更新所述包含业务信息S2的系统信息块。如果接入网网元在发送所述多播业务信息更新指示之前更新所述系统信息块，则更新所述系统信息块不影响系统消息的值标签(value tag)。
可选地，所述用于寻呼的PDCCH的DCI，和/或寻呼消息在小区内最大eDRX周期长度的时间范围内的PO发送。所述最大eDRX周期可以包含一个完整的最大eDRX周期，即从HSFN＝0到HSFN＝m-1，也可以跨越两个连续的最大eDRX周期。
即，假设小区最大eDRX周期长度为m，则接入网网元在H-SFN mod m 0开始的长度为m的时间范围内的PO发送，或在H-SFN mod m＝x的时间开始的长度为m的时间范围内的PO上发送。
实施例2：
接入网网元发送多播业务信息更新指示，并在SC-MCCH消息中指示多播业务的业务信息。
UE接收所述多播业务信息更新指示以及所述业务信息，并根据所述业务信息接收多播业务。
可选地，所述接入网网元发送多播业务信息更新指示可以但不限于包括以下情况的一或多种：
(1)在用于寻呼的PDCCH的DCI或寻呼消息中发送一个比特的指示信息，此一个比特的指示信息表示有多播业务信息的更新。
该情况下，接收到上述一个比特的指示信息(即多播业务信息更新指示)，且在其本地保存有业务信息的UE为此多播业务信息更新指示的目标UE。
(2)在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务标识信息。所述业务标识信息为TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括但不限于：TMGI中的低N个比特、TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
该情况下，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息中的业务标识信息，则认为接收到多播业务信息更新指示；接收到多播业务信息更新指示的UE比较其保存的业务信息中的TMGI与多播业务信息更新指示中的TMGI，如果匹配(相同)，或如果采用第一预定规则对TMGI进行计算或变换后的结果与业务标识信息相同，则UE为此多播业务信息更新指示的目标UE。
(3)在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务区域标识信息。所述业务区域标识信息为SAI，或对SAI按照第二预定规则进行计算或变换的信息，包括但不限于：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
该情况下，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息中的业务区域标识信息，则认为接收到多播业务信息更新指示；接收到多播业务信息更新指示的UE比较其保存的业务信息中的SAI与多播业务信息更新指示中的SAI，如果匹配(相同)，或如果采用第二预定规则对SAI进行计算或变换后的结果与业务区域标识信息相同，则UE为此多播业务信息更新指示的目标UE。
可选地，接入网网元在SC-MCCH消息SM-1中所指示的所述多播业务的业务信息S2包括：所述多播业务的TMGI、SAI至少之一。
可选地，如果业务信息S2包含TMGI，则业务信息S2还包括所述多播业务的开始结束时间至少之一，如果业务信息S2包含SAI，则业务信息S2还包含发送所述多播业务的频率信息。
可选的，所述业务信息S2还包括所述多播业务在本小区的调度信息，所述调度信息包括以下一种或多种：调度周期、非活动定时器、onduration定时器以及载波的频点信息。
可选地，UE根据如下方式之一接收所述多播业务的业务信息，以及接入网网元根据如下方式之一发送所述多播业务信息更新指示、及多播业务的业务信息：
(1)UE在接收到所述多播业务信息更新指示后的第一个H-SFN mod m＝0的时刻开始接收SC-MCCH消息SM-1。
这种方法中，接入网网元在前一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，并在此后的下一个最大eDRX周期开始更新所述SC-MCCH消息，更新的SC-MCCH消息SM-2包含有所述多播业务的业务信息S2。所述最大eDRX周期的范围为从H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，所述m为最大eDRX周期的长度或等于1024。
(2)UE在接收到所述多播业务的信息更新指示后，立刻接收所述SC-MCCH消息SM-1。在这种方法中，接入网网元在一个最大eDRX周期内的寻呼时机PO中发送所述多播业务信息更新指示，并在此之前，更新通过SC-MCCH信道发送的SC-MCCH消息SM-1，所述SC-MCCH消息SM-1包含有所述多播业务的业务信息S2。
可选地，所述UE接收所述多播业务信息更新指示以及所述多播业务的业务信息，并根据所述多播业务的业务信息接收多播业务包括：
目标UE接收到所述多播业务信息更新指示后，接收SC-MCCH消息SM-1，获取业务信息S2，并比较本UE保存的业务信息S1与获取的业务信息S2，如果业务信息S1与S2相匹配，则UE根据所述业务信息S2接收所述多播业务。
所述目标UE接收SC-MCCH消息SM-1，是指从UE从下一个H-SFN mod m＝0开始的SC-MCCH修改周期开始接收SC-MCCH消息SM-1。这里的m为小区最大eDRX周期的长度或等于1024，mod为取模运算。
其中，所述业务信息S1和S2相匹配，是指：
如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，所述UE根据所述业务信息S2接收所述多播业务包括以下情况中的一或多种：
(1)所述业务信息S2中携带所述多播业务的开始时间，UE根据所述开始时间，接收SC-MCCH消息SM-2的变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息。接入网网元通过SC-MCCH消息SM-2指示该多播业务的调度信息。
接入网网元在所述开始时间之前更新SC-MCCH消息，发送SC-MCCH消息SM-2。
(2)UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为接收到SC-MCCH消息SM-1之后的下一个H-SFN mod m＝0时刻开始，或之后的下一个SC-MCCH修改周期，所述m为小区最大eDRX周期长度或等于1024，或接收到SC-MCCH消息SM-1之后的下一个SC-MCCH修改周期开始，接收SC-MCCH消息变更通知或SC-MCCH消息SM-2。
接入网网元在上述的时刻更新SC-MCCH消息，发送SC-MCCH消息SM-2，所述SC-MCCH消息SM-2中携带所述多播业务的调度信息。
(3)接入网网元在SC-MCCH消息SM1中携带有该多播业务的调度信息，则UE从下一个H-SFN mod m＝0时刻开始，或从此时刻之后的第一个该多播业务的SC-MTCH调度周期开始接收所述多播业务的SC-MTCH，所述m为小区最大eDRX周期的长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH周期的起始时刻开始接收所述多播业务的SC-MTCH。
(4)如果接入网网元在SC-MCCH消息SM-1中指示了频率信息，则UE首先进行小区重选，并以此指示的频率为最高优先级频率进行重选。
可选地，所述用于寻呼的PDCCH的DCI，和/或寻呼消息在小区内最大eDRX周期长度的时间范围内的PO发送。所述eDRX周期可以是一个完整的最大eDRX周期，也可以跨越两个连续的最大eDRX周期。
即，假设小区最大eDRX周期长度为m，则接入网网元在H-SFN mod m 0开始的长度为m的时间范围内的PO发送，或在H-SFN mod m＝x的时间开始的长度为m的时间范围内的PO上发送。
实施例3：
接入网网元发送多播业务信息更新指示，并在寻呼消息中指示多播业务的业务信息。
UE接收所述业务信息更新指示以及所述业务信息，并根据所述业务信息接收多播业务。
可选地，所述接入网网元发送多播业务信息更新指示包括以下情况的一或多种：
(1)在用于寻呼的PDCCH的DCI中发送一个比特的信息。
此情况下，接收到此多播业务信息更新指示，且在其本地保存有任何多播业务的业务信息的UE为此多播业务信息更新指示的目标UE。
(2)在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务标识信息。所述业务标识信息为TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括但不限于：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
此情况下，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息中的业务标识信息，则认为接收到多播业务信息更新指示；接收到此多播业务信息更新 指示的UE比较其保存的业务信息中的TMGI与多播业务信息更新指示中的TMGI，如果匹配(相同)，或如果采用第一预定规则对TMGI进行计算或变换后的结果与业务标识信息相同，则UE为此多播业务信息更新指示的目标UE。
(3)在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务区域标识信息。所述业务区域标识信息为SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括但不限于：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
此情况下，如果UE在用于寻呼的PDCCH的DCI或寻呼消息中，接收到所述业务信息中的业务区域标识信息，则认为接收到多播业务信息更新指示；接收到此多播业务信息更新指示的UE比较其保存的业务信息中的SAI与多播业务信息更新指示中的SAI，如果匹配(相同)，或如果采用第二预定规则对SAI进行计算或变换后的结果与业务区域标识信息相同，则UE为此业务信息更新指示的目标UE。
可选地，接入网在寻呼消息(paging message)中所指示的所述业务信息S2包括：所述多播业务的TMGI、SAI至少之一。
可选地，如果业务信息S2包含TMGI，则业务信息S2还包括所述多播业务的开始、结束时间至少之一，如果业务信息S2包含SAI，则业务信息S2还包含发送所述多播业务的频率信息。
可选地，所述UE接收所述多播业务信息更新指示以及所述多播业务的业务信息，并根据所述多播业务的业务信息接收多播业务包括：
目标UE接收到所述多播业务信息更新指示后，接收所述寻呼消息，获取业务信息S2，并比较UE保存的业务信息S1与获取的业务信息S2，如果业务信息S1与S2相匹配，则UE根据所述业务信息S2接收所述多播业务。
其中，所述业务信息S1和S2相匹配可以是指：
如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，所述UE根据所述业务信息S2接收所述多播业务包括以下一或多种方式：
(1)所述业务信息S2中携带所述多播业务的开始时间，UE根据所述开始时间，即从所述开始时间或所述开始时间之前的时刻开始，接收SC-MCCH消息变更通知、SC-MCCH消息SM-2至少之一，以获得所述多播业务的调度信息。接入网网元通过SC-MCCH消息SM-2指示所述多播业务的调度信息。
(2)UE在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2至少之一，所述特定时间为下一个H-SFN mod m＝0时刻，所述m为小区最大eDRX周期长度或等于1024，即从此时刻开始的SC-MCCH修改周期或此时刻之后的SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2。
接入网网元在上述的时刻更新SC-MCCH消息，发送SC-MCCH消息SM-2，所述 SC-MCCH消息SM-2中携带所述多播业务的调度信息。
可选地，所述方法还包括：如果所述业务信息S2中携带了所述业务的频率信息，则UE根据此频率信息进行小区重选。
可选地，所述用于寻呼的PDCCH的DCI，和/或寻呼消息在小区内最大eDRX周期长度的时间范围内的PO发送。所述eDRX周期可以是一个完整的最大eDRX周期，也可以跨越两个连续的最大eDRX周期。
即，假设小区最大eDRX周期长度为m，则接入网网元在H-SFN mod m 0开始的长度为m的时间范围内的PO发送，或在H-SFN mod m＝x的时间开始的长度为m的时间范围内的PO上发送。
可选地，所述方法还包括：
核心网网元通过信令指示接入网网元MBMS业务的业务信息，并显式或隐式的指示接入网网元该MBMS业务通过本实施例提供的方法之一在无线接口指示UE所述MBMS业务的业务信息。
本公开实施例提供的第一种多播业务的业务信息变更通知方法，应用在接入网网元侧时如图5所示，包括310：
310、接入网网元在调度SC-MTCH的PDCCH的DCI中，或承载SC-MTCH数据的MAC PDU中发送SC-MCCH消息的变更通知。
可选地，所述步骤310前还包括：
300、所述接入网网元生成SC-MCCH消息的变更通知。
可选地，所述接入网网元在所述调度SC-MTCH的PDCCH的DCI中，或承载SC-MTCH数据的MAC PDU中指示的内容包括以下内容的一种或多种的组合：
一个比特的指示，以指示是否有SC-MCCH消息的更新；
一个比特的指示，以指示SC-MCCH消息的更新是否与所述SC-MTCH相关，或指示SC-MCCH消息是否有与所述SC-MTCH相关的内容更新。
一个比特的指示，以指示SC-MCCH消息内容中是否有与所述SC-MTCH无关的内容的更新。
可选地，所述接入网网元在如下情况下的一种或多种发送所述SC-MCCH消息的变更通知：
在SC-MCCH消息有变更时，所述接入网网元调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息是否有变更；
在SC-MCCH消息中与所述SC-MTCH相关的配置信息有变更时；包括：所述SC-MTCH的调度信息，所述SC-MTCH对应的MBMS业务的配置信息，所述SC-MTCH相关的MBMS业务的邻区配置信息；所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU指示所述SC-MCCH消息内容是否有与所述 SC-MTCH相关的内容变更；
接入网网元在所述SC-MTCH无关的SC-MCCH消息内容发生变更时，调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息有与所述SC-MTCH无关的内容的更新。
可选地，所述接入网网元发送所述SC-MCCH消息的变更通知的时机包括如下一或多种：
所述SC_MCCH消息发生变更的SC-MCCH修改周期内；
在所述SC-MCCH消息发生变更的SC-MCCH修改周期的前一个SC-MCCH修改周期内。
可选地，所述接入网网元在调度SC-MTCH的PDCCH的DCI中，发送SC-MCCH消息的变更通知包括：
接入网网元发送一次或多次不指示承载SC-MTCH的PDSCH信道的调度信息的PDCCH的DCI，但在此DCI中指示SC-MCCH消息的变更通知；所述PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰，并使用所述SC-MTCH的调度周期的配置进行调度发送。
可选地，所述接入网网元在承载SC-MTCH数据的MAC PDU中，发送SC-MCCH消息的变更通知包括：
接入网网元发送一次或多次不承载SC-MTCH数据的MAC PDU，但在此MAC PDU中指示SC-MCCH消息的变更通知。
本公开实施例提供的第一种多播业务的业务信息变更通知方法，应用在UE侧时如图6所示，包括410～420：
410、UE接收SC-MCCH消息的变更通知；
420、所述UE根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
可选地，所述UE根据接收到的SC-MCCH消息的变更通知接收SC-MCCH消息包括：
所述UE在承载SC-MCCH的载波中，在接收到所述SC-MCCH消息的变更通知时刻所对应的SC-MCCH修改周期，或在接收到所述SC-MCCH消息的变更通知的时刻之后的SC-MCCH修改周期内接收SC-MCCH消息。
可选地，所述UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
当SC-MCCH和SC-MTCH在不同的载波，UE接收到SC-MCCH消息的变更通知后，在约定的SC-MCCH修改周期内接收SC-MCCH更新消息。
可选地，UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
在SC-MCCH消息调度与UE正在接收的SC-MTCH调度资源在时域上冲突时，至少 在下面情况下，UE优先接收SC-MCCH消息：
所述SC-MCCH消息的变更通知指示所述SC-MCCH消息内容的变更与所述SC-MTCH相关时、所述SC-MTCH相应的MBMS业务停止时、或所述SC-MTCH相应的MBMS业务的邻区信息发生变更时。
下面用1个示例性的实施例说明上述第一种多播业务的业务信息变更通知方法。
实施例4
接入网网元在调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU中，发送SC-MCCH消息的变更通知。所述SC-MTCH与SC-MCCH分别在相同频率的同一个载波，或不同频率的不同载波中调度发送。
UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
可选地，接入网网元在所述调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU中指示的内容包括以下内容的一种或多种的组合：
(1)一个比特的指示，以指示是否有SC-MCCH消息的更新；
(3)一个比特的指示，以指示SC-MCCH消息的更新是否与所述SC-MTCH相关，或指示SC-MCCH消息是否有与所述SC-MTCH相关的内容更新。
(4)一个比特的指示，以指示SC-MCCH消息内容中是否有与所述SC-MTCH无关的内容的更新。
可选地，接入网网元在如下情况下的一种或多种发送所述SC-MCCH消息的变更通知：
(1)在SC-MCCH消息有变更时，此时所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU中指示SC-MCCH消息是否有变更。
(2)在SC-MCCH消息中与所述SC-MTCH相关的配置信息有变更时；包括但不限于：所述SC-MTCH的调度信息，所述SC-MTCH对应的MBMS业务的配置信息，所述SC-MTCH相关的MBMS业务的邻区配置信息；此时所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU中指示所述SC-MCCH消息内容是否有与所述SC-MTCH相关的内容变更。
(3)接入网网元在于所述SC-MTCH无关的SC-MCCH消息内容发生变更时，此时所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU中指示SC-MCCH消息有与所述SC-MTCH无关的内容的更新。
可选地，接入网网元发送所述SC-MCCH消息的变更通知的时机包括如下一或多种：
(1)在所述SC_MCCH消息发生变更的SC-MCCH修改周期内。
(2)在所述SC-MCCH消息发生变更的SC-MCCH修改周期的前一个SC-MCCH修改周期内。即，接入网网元在前一个SC-MCCH修改周期内通过本实施例的方法发送SC-MCCH消息的变更通知，在后一个SC-MCCH修改周期内发送更新的SC-MCCH消息。
可选地，接入网网元在发送所述SC-MCCH消息的变更通知时，在上述的SC-MCCH修改周期的时间间隔内所调度的所述SC-MTCH的所有PDCCH的DCI或承载SC-MTCH 数据的MAC PDU中指示所述SC-MCCH消息变更通知。
可选地，所述UE根据接收到的SC-MCCH消息的变更通知接收SC-MCCH消息包括：所述UE在承载SC-MCCH的载波中，在接收到所述SC-MCCH消息变更通知时刻所对应的的SC-MCCH修改周期，或在接收到所述SC-MCCH消息变更通知的时刻之后的SC-MCCH修改周期内接收SC-MCCH消息。
可选地，接入网网元在调度SC-MTCH的PDCCH的DCI中，发送SC-MCCH消息的变更通知包括：
接入网网元发送一次或多次不指示承载SC-MTCH的PDSCH信道的调度信息的PDCCH的DCI，但在此DCI中指示SC-MCCH消息的变更通知。所述PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰，并使用所述SC-MTCH的调度周期的配置进行调度发送。这种方法可以适用于所述SC-MCCH修改周期中的一个或多个SC-MTCH调度中没有业务数据需要调度，但需要指示SC-MCCH消息变更的情况。
可选地，接入网网元在承载SC-MTCH的MAC PDU中，发送SC-MCCH消息的变更通知还包括：
接入网网元发送一次或多次不承载SC-MTCH数据的MAC PDU，但在此MAC PDU中指示SC-MCCH消息的变更通知。
可选地，UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
当SC-MCCH和SC-MTCH在不同的载波，UE接收到SC-MCCH消息的变更通知后，在约定的SC-MCCH修改周期内接收SC-MCCH更新消息。
可选地，UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
在SC-MCCH消息调度与UE正在接收的SC-MTCH调度资源在时域上冲突时，至少在下面情况下，UE优先接收SC-MCCH消息：
所述SC-MCCH消息的变更通知指示所述SC-MCCH消息内容的变更与所述SC-MTCH相关时，即包括所述SC-MTCH的调度信息时、所述SC-MTCH相应的MBMS业务停止时、或所述SC-MTCH相应的MBMS业务的邻区信息发生变更时。
可选的，UE在上述约定的接收SC-MCCH更新的SC-MCCH修改周期的时间间隔内，不接收或尝试接收SC-MTCH信道数据，接入网网元在上述约定接收SC-MCCH更新的SC-MCCH修改周期的时间间隔内，不调度发送所述SC-MTCH信道数据。
在本实施例中，所述通过承载SC-MTCH数据的MAC PDU指示所述SC-MCCH更新通知，是指在所述MAC PDU中承载一个MAC控制单元(MAC CE)，此MAC CE用于指示SC-MCCH更新通知。并通过协议，对此MAC PDU定义其专用的逻辑信道标识(logical channel ID，LCID)。
图7为本实施例的一个示例性实施方法，在图7中，SC-MTCH和SC-MCCH分别在 不同的第一载波和第二载波中调度发送。在第一SC-MCCH修改周期的时间间隔内对应的两个SC-MTCH调度周期中，接入网网元在调度SC-MTCH的PDCCH的DCI中指示SC-MCCH消息的变更通知。接入网网元在第一载波的第二SC-MCCH修改周期中开始更新SC-MCCH消息，此时，UE在第二SC-MCCH修改周期接收更新的SC-MCCH消息，接入网网元在第二SC-MCCH修改周期的时间间隔内不调度发送所述SC-MTCH信道的数据。
通过本实施例的方法，接入网网元在调度SC-MCCH消息的变更通知时，不需要在时域上错开在所有在不同载波上的SC-MTCH的调度。不具有同时接收多个载波的功能的UE，也能在其接收SC-MTCH的载波上接收到SC-MCCH消息的变更通知，从而不会错过SC-MCCH消息的变更。
本公开实施例提供的第二种多播业务的业务信息变更通知方法，应用在接入网网元侧时如图8所示，包括510：
510、接入网网元在调度SC-MTCH的载波中，发送SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
可选地，所述步骤510前还包括：
500、所述接入网网元生成SC-MCCH消息。
可选地，所述接入网在调度SC-MTCH的载波中发送的SC-MCCH消息的内容包括下述情况的一或多种：
所述SC-MCCH消息的内容与该小区内发送的SC-MCCH承载的SC-MCCH消息的内容相同，至少包括该小区内正在进行发送的所有业务的调度信息；
与所述SC-MTCH相关的SC-MCCH消息的内容，包括以下一或多种：与所述SC-MTCH相关的调度信息、与此SC-MTCH相应的MBMS业务的标识信息、与该MBMS业务相关的邻区配置信息。
可选地，所述接入网网元发送SC-MCCH消息的内容包括以下至少一种方式：
方式一：接入网网元在所述SC-MTCH的调度周期中，发送物理下行控制信道PDCCH的DCI，所述PDCCH的DCI使用专用的RNTI进行加扰，所述专用RNTI加扰的DCI指示承载消息M的物理下行分享信道PDSCH的调度信息；
方式二：接入网网元在所述调度SC-MTCH的调度周期中，发送PDCCH的DCI，该PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰；接入网网元在该DCI中指示此次调度的PDSCH所承载的内容为消息M；
方式三：接入网网元通过介质访问控制MAC层控制单元CE发送所述SC-MCCH消息的内容；所述SC-MCCH消息的内容包装在MAC CE中，所述MAC CE在承载所述SC-MTCH数据的MAC协议数据单元PDU中；
方式四：接入网网元将包含SC-MCCH消息内容的消息M，承载在逻辑信道SC-MCCH 中，承载消息M的SC-MCCH与承载业务数据的SC-MTCH以MAC层复用的方法复用MAC PDU；
方式一和方式二中，所述消息M包含所述SC-MCCH消息的内容；所述消息M通过逻辑信道SC-MCCH承载。
可选地，方式一和方式二中，PDCCH的DCI的重复发送次数通过系统信息块、SC-MCCH消息指示；承载所述消息M的PDSCH的重复次数通过系统信息块、SC-MCCH消息、或所述PDCCH的DCI指示。
本公开实施例提供的第二种多播业务的业务信息变更通知方法，应用在UE侧时如图9所示，包括610：
610、UE在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
可选地，所述步骤610后还包括：
620、所述UE根据SC-MCCH消息接收SC-MTCH。
可选地，所述UE在调度SC-MTCH的载波中，接收SC-MCCH消息的内容包括以下至少一种方式：
UE在所述SC-MTCH的调度周期内，检测到通过专用RNTI加扰的PDCCH的DCI时，确定该DCI所调度的PDSCH承载的内容为消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；所述消息M包含所述SC-MCCH消息的部分或全部内容；
UE在SC-MTCH调度周期内，检测到通过调度所述SC-MTCH的PDCCH的DCI指示此次调度的内容为消息M时，确定此次调度内容是消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；
UE通过接收所述SC-MTCH数据的介质访问控制MAC协议数据单元PDU，接收到所述SC-MCCH消息的内容；
UE接收到所述更新的SC-MCCH消息内容后，从下一个SC-MCCH修改周期的时间边界之后应用所接收到的更新的SC-MCCH消息的内容。
下面用1个示例性的实施例说明上述第二种多播业务的业务信息变更通知方法。
实施例5：
接入网网元在调度SC-MTCH的载波中，发送SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
所述接入网在调度SC-MTCH的载波中发送的SC-MCCH消息的内容包括下述情况的一或多种：
(1)完整的SC-MCCH消息的内容，即所述SC-MCCH消息的内容与该小区内发送的SC-MCCH承载的SC-MCCH消息的内容相同，至少包括该小区内正在进行发送的所有 业务的调度信息。
(2)部分SC-MCCH消息的内容：与所述SC-MTCH相关的SC-MCCH消息的内容，包括以下一或多种：与所述SC-MTCH相关的调度信息、与此SC-MTCH相应的MBMS业务的标识信息、与该MBMS业务相关的邻区配置信息。
可选地，所述接入网网元发送SC-MCCH消息的内容，包括如下方法中的至少一种：
发送方法一：
接入网网元在所述SC-MTCH的调度周期中，发送PDCCH的DCI，所述PDCCH的DCI使用专用的RNTI进行加扰，即该专用的RNTI不同于用于调度SC-MTCH的RNTI。所述专用RNTI加扰的DCI指示了承载消息M的物理下行分享信道(Physical Downlink Shared Channel，PDSCH)的调度信息。
所述消息M包含所述SC-MCCH消息的内容。所述消息M通过逻辑信道SC-MCCH承载。
采用发送方法一时，UE在所述SC-MTCH的调度周期内，检测到通过上述专用RNTI加扰的PDCCH的DCI时，可知该DCI所调度的PDSCH承载的内容为消息M。
UE在接收到上述的专用RNTI调度的消息M后，按照接收到SC-MTCH的下行调度一样的进行非活动定时器的处理，即UE将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；所述消息M包含所述SC-MCCH消息的部分或全部内容。
本方法中的PDCCH信令(包括但不限于DCI)的重复发送次数通过系统信息块、SC-MCCH消息指示。
本方法中的承载所述消息M的PDSCH的重复次数通过系统信息块、SC-MCCH消息、或在本方法中所述PDCCH的DCI指示。
发送方法二：
接入网网元在所述调度SC-MTCH的调度周期中，发送PDCCH的DCI，该PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰。接入网网元在该DCI中指示此次调度的PDSCH所承载的内容为消息M。
所述消息M包含所述SC-MCCH消息的内容，所述消息M通过逻辑信道SC-MCCH承载。
所述指示此次调度的PDSCH所承载的内容为消息M，是通过在所述DCI中一个比特的信息进行指示，如果该一个比特的信息没有指示此次调度的PDSCH所承载的内容为消息M，则表示此次调度的PDSCH承载的内容为SC-MTCH数据。
采用发送方法二时，UE在所述SC-MTCH调度周期内，检测到通过上述调度所述SC-MTCH的PDCCH的DCI指示此次调度的内容为消息M时，可知此次调度内容是消息M。
UE在接收到上述的消息M后，按照接收到SC-MTCH的下行调度一样的进行非活动 定时器的处理，即UE将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理。
本方法中的PDCCH信令的重复发送次数通过系统信息块、SC-MCCH消息指示。
本方法中的承载所述PDSCH的重复次数通过系统信息块、SC-MCCH消息、或在本方法中所述PDCCH的DCI指示。
发送方法三：
接入网网元通过介质访问控制(Media Access Control，MAC)层控制单元(Control Element，CE)发送所述SC-MCCH消息的内容。
所述SC-MCCH消息的内容包装在MAC CE中，所述MAC CE在承载所述SC-MTCH数据的MAC协议数据单元(Protocol Data Unit，PDU)中。
即，接入网网元在发送承载SC-MTCH数据的MAC PDU中，还携带包含上述SC-MCCH消息内容的MAC CE。
采用发送方法三时，UE通过接收所述SC-MTCH数据的MAC PDU，接收到所述SC-MCCH消息的内容。所述MAC CE的格式定义的方法使用相关协议的MAC CE的格式定义的方法。
即，为此MAC CE定义专用的逻辑信道标识(Logical Channel Identify，LCID)，UE通过所述专用的LCID识别该MAC CE为包含所述SC-MCCH消息内容的MAC CE。所述MAC CE的长度为可变长度，以适应不同的SC-MCCH消息内容的大小。
SC-MCCH消息的内容以ASN.1编码形式，或显示的信元定义的形式被包含在所述MAC CE中。如果SC-MCCH消息内容以ASN.1编码的形式包含在所述MAC CE中，则其经过ASN.1编码后的码流以字节为单位顺序的在所述MAC CE中排列。
发送方法四：
接入网网元将包含SC-MCCH消息内容的消息M，承载在逻辑信道SC-MCCH中，并与SC-MTCH复用(multiplexing)承载在下行分享信道(Downlink share channel，DL-SCH)，最终承载在PDSCH。
即本方法中，承载消息M的SC-MCCH与承载业务数据的SC-MTCH以MAC层复用的方法复用MAC PDU。
并为此SC-MCCH和SC-MTCH分别定义其LCID。
在本实施例的方法中，接入网网元可以在同一个SC-MCCH修改周期的时间段内，通过本实施例提供的方法，发送多次所述SC-MCCH消息的内容。在所述同一个SC-MCCH修改周期内，接入网网元发送的多次SC-MCCH消息的内容保持不变。
在本实施例提供的上述方法中，UE接收到所述更新的SC-MCCH消息内容后，从下一个SC-MCCH修改周期的时间边界之后应用所述接收到的更新的SC-MCCH消息的内容，例如，按照所接收到更新的SC-MCCH消息内容接收所述SC-MTCH数据。
通过本实施例的方法，接入网在调度SC-MTCH的载波中同时发送SC-MCCH消息的 内容，从而避免了UE在接收变更的SC-MCCH消息时，需要回到承载SC-MCCH载波的问题，也避免了对UE同时接收SC-MCCH和SC-MTCH的能力要求，从而使接入网网元在不同的载波上分别调度SC-MTCH和SC-MCCH时，可以不需要考虑SC-MCCH和SC-MTCH调度在时域资源上的错开(不冲突)，提高了接入网调度的灵活性。
本公开实施例提供的第二种多播业务的业务信息通知方法，应用在核心网网元侧时如图10所示，包括710～720：
S710、核心网网元在控制面消息MBMS会话开始请求中，指示所述控制面消息中所指示的MBMS业务具有至少如下特性之一：
(1)该MBMS业务为推送类型；
(2)该MBMS业务信息的更新通知需要通过寻呼机制完成；
(3)该MBMS业务为突发类型；
S720、所述核心网网元发送所述MBMS会话开始请求给接入网网元。
可选地，核心网网元在所述MBMS会话开始请求中，还指示所述MBMS业务的参数；所述参数包括但不限于以下一种或多种：开始时间、SAI、频率信息。
可选地，所述MBMS会话开始请求用于指示所述接入网网元按照下列的方法处理：
通过调度寻呼消息的下行控制信息DCI或者寻呼消息，在系统超帧号H-SFN＝0到H-SFN＝m-1的范围内的寻呼时机中，指示用户设备UE在接收此DCI或寻呼消息之后的下一个H-SFN mod m＝0时刻开始，接收SC-MCCH消息；在所述SC-MCCH消息中指示所述多播业务的调度信息；所述m为小区中eDRX周期的最大值，或等于1024。
本可选方案中，所述接入网网元在收到所述MBMS会话开始请求后，进行上述处理。
下面用一个示例性的实施例说明上述第二种多播业务的业务信息通知方法。
实施例6
核心网网元在发送的控制面消息MBMS会话开始请求(session start request)中，指示该消息所指示的MBMS业务具有如下特性之一：
(1)该MBMS业务为推送类型；
(2)该MBMS业务信息的更新通知需要通过寻呼机制完成；
(3)该MBMS业务为突发类型；
即，核心网网元指示接入网网元，所述MBMS业务需要通过寻呼机制完成该MBMS业务的业务信息更新通知。
可选的，核心网网元在所述MBMS session startrequest中，还指示了该MBMS业务的开始时间、SAI、频率信息等一种或多种。
接入网网元接收到上述的MBMS Session Start Request消息后，按照上述实施1、2、或3的方法进行多播业务信息的更新通知，即发送多播业务信息更新指示，并指示多播业务的业务信息。
或者，接入网网元按照下列的方法处理：
接入网网元通过调度寻呼消息的DCI，即用于寻呼的RNTI进行加扰的DCI，或者寻呼消息(paging message)，在一个eDRX最大周期的范围内，即H-SFN＝0到H-SFN＝m-1的范围内的寻呼时机(PO)中指示UE在接收此DCI或寻呼消息之后的下一个H-SFN mod m＝0时刻开始，接收SC-MCCH消息，接入网网元在所述SC-MCCH消息中指示所述多播业务的调度信息。所述m为小区中eDRX周期的最大值，或等于1024。
UE在接收到所述多播业务的调度信息后，判断所述多播业务是否为其感兴趣的多播业务，例如，通过对比其本地保存的多播业务标识TMGI与接收到的所述多播业务调度信息所指示的多播业务标识TMGI，如果相同，则UE认为所述多播业务为其感兴趣的多播业务，并根据所述MBMS业务的调度信息接收所述多播业务。
本公开实施例提供的设置于接入网网元的第一种多播业务的业务信息通知装置，如图11所示，包括：
第一发送模块111，设置为向UE发送多播业务信息更新指示；
第一指示模块112，设置为向所述UE指示多播业务的业务信息。
可选地，所述第一指示模块向所述UE指示多播业务的业务信息包括以下至少一种方式：
所述第一指示模块在系统信息块中指示多播业务的业务信息；
所述第一指示模块在单小区多播控制信道SC-MCCH消息中指示多播业务的业务信息；
所述第一指示模块在寻呼消息中指示多播业务的业务信息。
可选地，所述第一发送模块向UE发送多播业务信息更新指示包括以下情况的一或多种：
在用于寻呼的物理下行公共控制信道PDCCH的下行控制信息DCI中或寻呼消息中发送一个比特的信息；；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务标识信息；所述业务标识信息为临时多播组标识TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；
在用于寻呼的PDCCH的DCI或寻呼消息中指示所述业务信息的业务区域标识信息；所述业务区域标识信息为业务区域标识SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果。
可选地，所述第一指示模块所指示的多播业务的业务信息包括：所述多播业务的TMGI、SAI其中之一。
可选地，如果所述业务信息包含TMGI，则所述业务信息还包括所述多播业务的开始、结束时间其中之一，如果所述业务信息包含SAI，则所述业务信息还包含发送所述多播业务的频率信息。
可选地，所述第一指示模块还设置为在SC-MCCH消息中向所述UE指示所述多播业务的调度信息。
可选地，所述装置还包括：
更新模块，设置为在向UE发送所述多播业务信息更新指示之前或之后，更新包含所述多播业务的业务信息的系统信息块。
可选地，所述装置还包括：
请求接收模块，设置为在所述第一发送模块发送多播业务信息更新指示前，接收核心网网元发送的控制面消息MBMS Session Start Request；所述控制面消息用于指示所述接入网网元，该消息所指示的多媒体广播多播MBMS业务需要通过寻呼机制完成业务信息更新通知。
可选地，所述第一指示模块在系统信息块中指示多播业务的业务信息时，所述第一发送模块、第一指示模块根据如下方式之一向UE发送多播业务信息更新指示，及向所述UE指示所述多播业务的业务信息：
第一发送模块在前一个最大增强型非连续接收eDRX周期内的寻呼时机中发送所述的多播业务信息更新指示，第一指示模块在此后的下一个最大eDRX周期开始更新所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2；所述的最大eDRX周期的范围为从系统超帧号H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
第一发送模块在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，第一指示模块在发送所述多播业务信息更新指示之前，更新通过系统消息发送的所述系统信息块，更新的系统信息块包含有所述多播业务的业务信息S2。
可选地，所述第一指示模块在单小区多播控制信道SC-MCCH消息中指示多播业务的业务信息时，所述第一发送模块、第一指示模块根据如下方式之一向UE发送多播业务信息更新指示，及向所述UE指示所述多播业务的业务信息：
第一发送模块在前一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，第一指示模块在此后的下一个最大eDRX周期开始更新所述SC-MCCH消息，更新的SC-MCCH消息SM-2包含有所述多播业务的业务信息S2；所述最大eDRX周期的范围为从H-SFN mod m＝0到H-SFN mod m＝m-1的时间间隔，m为最大eDRX周期的长度或等于1024；
第一发送模块在一个最大eDRX周期内的寻呼时机中发送所述多播业务信息更新指示，第一指示模块在此之前，更新通过SC-MCCH信道发送的SC-MCCH消息SM-1，所述SC-MCCH消息SM-1包含有所述多播业务的业务信息S2。
本公开实施例提供的设置于用户设备的第一种多播业务的业务信息通知装置，如图12所示，包括：
第一接收模块121，设置为从接入网网元接收所述多播业务信息更新指示以及所述多播业务的业务信息；
第二接收模块122，设置为根据所述多播业务的业务信息从所述接入网网元接收多播业务。
可选地，所述第一接收模块从接入网网元接收多播业务的业务信息包括以下至少一种方式：
所述第一接收模块在系统信息块中接收多播业务的业务信息；
所述第一接收模块在单小区多播控制信道SC-MCCH消息中接收多播业务的业务信息；
所述第一接收模块在寻呼消息中接收多播业务的业务信息。
可选地，所述第一接收模块从接入网网元接收所述多播业务信息更新指示包括以下情况的一或多种：
所述第一接收模块在用于寻呼的物理下行公共控制信道PDCCH的下行控制信息DCI或寻呼消息中接收一个比特的信息；如果第一接收模块所在UE保存有任何多播业务的业务信息，则第一接收模块所在UE为此多播业务信息更新指示的目标UE；
所述第一接收模块在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务标识信息；所述业务标识信息为临时多播组标识TMGI，或对TMGI按照第一预定规则进行计算或变换得到的信息，包括：TMGI中的低N个比特，TMGI的高N个比特，或将TMGI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果第一接收模块所在UE保存的业务信息中的TMGI与业务标识信息中的TMGI匹配，或如果采用第一预定规则对本UE保存的TMGI进行计算或变换后的结果与业务标识信息中的相同，则第一接收模块所在UE为此多播业务信息更新指示的目标UE；
所述第一接收模块在用于寻呼的PDCCH的DCI或寻呼消息中接收所述业务信息的业务区域标识信息；所述业务区域标识信息为业务区域标识SAI，或对SAI按照第二预定规则进行计算或变换得到的信息，包括：SAI中的低N个比特，SAI的高N个比特，或将SAI所有比特分为N个比特一组并进行组间逻辑异或运算的结果；如果本UE保存的业务信息中的SAI与业务标识信息中的SAI匹配，或如果采用第二预定规则对第一接收模块所在UE保存的SAI进行计算或变换后的结果与业务标识信息中的相同，则第一接收模块所在UE为此多播业务信息更新指示的目标UE。
可选地，所述第二接收模块根据所述多播业务的业务信息从所述接入网网元接收多播业务包括：
当所在UE为目标UE时，比较所在UE保存的业务信息S1与获取的业务信息S2， 如果业务信息S1与S2相匹配，则第二接收模块根据所述业务信息S2接收所述多播业务。
可选地，所述业务信息S1与S2相匹配是指：
如果业务信息S2携带TMGI，则业务信息S1和S2的TMGI相同；或者，如果业务信息S2携带SAI，而没有携带TMGI，则业务信息S1和S2的SAI相同。
可选地，当所述第二接收模块在系统信息块中接收多播业务的业务信息时，第二接收模块根据如下方式之一从所述接入网网元接收所述多播业务的业务信息：
第二接收模块在第一接收模块接收到所述多播业务信息更新指示后的第一个系统超帧号H-SFN mod m＝0的时刻开始接收更新的系统信息块；m为最大增强型非连续接收eDRX周期的长度或等于1024；
第二接收模块在第一接收模块接收到所述多播业务信息更新指示后，立刻接收所述系统信息块。
可选地，当所述第二接收模块在SC-MCCH消息中接收多播业务的业务信息时，第二接收模块根据如下方式之一从所述接入网网元接收所述多播业务的业务信息：
第二接收模块在第一接收模块接收到所述多播业务信息更新指示后的第一个H-SFN mod m＝0的时刻开始接收SC-MCCH消息SM-1；m为最大eDRX周期的长度或等于1024；
第二接收模块在第一接收模块接收到所述多播业务信息更新指示后，立刻接收所述SC-MCCH消息SM-1。
可选地，当所述第一接收模块在系统信息块中接收多播业务的业务信息时，所述第二接收模块根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则第二接收模块根据所述开始时间，接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息；
如果所述业务信息S2中没有携带所述多播业务的开始时间，则第二接收模块从接收到更新的系统信息块后的下一个SC-MCCH重复周期开始接收SC-MCCH消息的变更通知或SC-MCCH消息，以获取所述多播业务的调度信息；
第二接收模块在特定的时间开始接收SC-MCCH更新通知或SC-MCCH消息，以获取所述多播业务的调度信息，所述特定时间为UE接收到更新的系统信息块后的下一个系统超帧号H-SFN mod m＝0的时刻，所述m为小区最大增强型非连续接收eDRX周期长度。
可选地，当所述第一接收模块在SC-MCCH消息中接收多播业务的业务信息时，所述第二接收模块根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式的组合：
如果所述业务信息S2中携带所述多播业务的开始时间，则第二接收模块根据所述开始时间，接收SC-MCCH消息的变更通知、SC-MCCH消息SM-2其中之一，以获得所述多播业务的调度信息；
第二接收模块在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2其中之一，所述特定时间为接收到SC-MCCH消息SM-1之后的下一个H-SFN mod m＝0时刻开始或在此之后的下一个SC-MCCH修改周期，所述m为小区最大eDRX周期长度或等于1024；或，UE从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2；
如果SC-MCCH消息SM1中携带有多播业务的调度信息，则第二接收模块从下一个H-SFN mod m＝0时刻开始，或从该时刻之后的第一个该多播业务的SC-MTCH调度周期开始接收所述多播业务的SC-MTCH，所述m为小区最大eDRX周期的长度或等于1024；或，第二接收模块从接收到所述SC-MCCH消息SM-1之后的下一个SC-MCCH周期的起始时刻开始接收所述多播业务的SC-MTCH；
如果SC-MCCH消息SM-1中指示了频率信息，则第二接收模块首先进行小区重选，并以此指示的频率为最高优先级频率进行重选。
可选地，当所述第一接收模块在寻呼消息中接收多播业务的业务信息时，所述第二接收模块根据所述业务信息S2从所述接入网网元接收所述多播业务包括以下一种或多种方式：
如果所述业务信息S2中携带所述多播业务的开始时间，则第二接收模块根据所述开始时间，接收SC-MCCH消息变更通知、SC-MCCH消息SM-2其中之一，以获得所述多播业务的调度信息；
第二接收模块在特定的时间开始接收SC-MCCH更新通知、SC-MCCH消息SM-2其中之一，所述特定时间为下一个H-SFN mod m＝0时刻，所述m为小区最大eDRX周期长度或等于1024，即从此时刻开始的SC-MCCH修改周期或此时刻之后的SC-MCCH修改周期开始接收SC-MCCH消息变更通知或SC-MCCH消息SM-2。
可选地，所述业务信息通知方法还包括：
如果所述多播业务的业务信息中携带了所述多播业务的频率信息，则第二接收模块根据此频率信息进行小区重选。
本公开实施例提供的设置于接入网网元的第一种多播业务的业务信息变更通知装置，如图13所示，包括：
第二发送模块131，设置为在调度单小区多播业务信道SC-MTCH的物理下行控制信道PDCCH的下行控制信息DCI中，或承载SC-MTCH数据的介质访问控制MAC协议数据单元PDU中，发送单小区多播控制信道SC-MCCH消息的变更通知。
可选地，所述装置还包括：
第一生成模块132，设置为生成SC-MCCH消息的变更通知。
可选地，所述第二发送模块在所述调度SC-MTCH的PDCCH的DCI中，或承载SC-MTCH数据的MAC PDU中指示的内容包括以下内容的一种或多种的组合：
一个比特的指示，以指示是否有SC-MCCH消息的更新；
一个比特的指示，以指示SC-MCCH消息的更新是否与所述SC-MTCH相关，或指示SC-MCCH消息是否有与所述SC-MTCH相关的内容更新。
一个比特的指示，以指示SC-MCCH消息内容中是否有与所述SC-MTCH无关的内容的更新。
可选地，所述第二发送模块在如下情况下的一种或多种发送所述SC-MCCH消息的变更通知：
在SC-MCCH消息有变更时，所述第二发送模块调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息是否有变更；
在SC-MCCH消息中与所述SC-MTCH相关的配置信息有变更时；包括：所述SC-MTCH的调度信息，所述SC-MTCH对应的MBMS业务的配置信息，所述SC-MTCH相关的MBMS业务的邻区配置信息；所述第二发送模块调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU指示所述SC-MCCH消息内容是否有与所述SC-MTCH相关的内容变更；
第二发送模块在所述SC-MTCH无关的SC-MCCH消息内容发生变更时，调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息有与所述SC-MTCH无关的内容的更新。
可选地，所述第二发送模块发送所述SC-MCCH消息的变更通知的时机包括如下一或多种：
所述SC_MCCH消息发生变更的SC-MCCH修改周期内；
在所述SC-MCCH消息发生变更的SC-MCCH修改周期的前一个SC-MCCH修改周期内。
可选地，所述第二发送模块在调度SC-MTCH的PDCCH的DCI中，发送SC-MCCH消息的变更通知包括：
第二发送模块发送一次或多次不指示承载SC-MTCH的PDSCH信道的调度信息的PDCCH的DCI，但在此DCI中指示SC-MCCH消息的变更通知；所述PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰，并使用所述SC-MTCH的调度周期的配置进行调度发送。
可选地，所述第二发送模块在承载SC-MTCH数据的MAC PDU中，发送SC-MCCH消息的变更通知包括：
第二发送模块发送一次或多次不承载SC-MTCH数据的MAC PDU，但在此MAC PDU中指示SC-MCCH消息的变更通知。
本公开实施例提供的设置于用户设备的第一种多播业务的业务信息变更通知装置，如图14所示，包括：
第三接收模块141，设置为接收单小区多播控制信道SC-MCCH消息的变更通知；
第四接收模块142，设置为根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
可选地，所述第四接收模块根据接收到的SC-MCCH消息的变更通知接收SC-MCCH消息包括：
所述UE在承载SC-MCCH的载波中，在接收到所述SC-MCCH消息的变更通知时刻所对应的SC-MCCH修改周期，或在接收到所述SC-MCCH消息的变更通知的时刻之后的SC-MCCH修改周期内接收SC-MCCH消息。
可选地，所述第四接收模块根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
当SC-MCCH和SC-MTCH在不同的载波，第四接收模块接收到SC-MCCH消息的变更通知后，在约定的SC-MCCH修改周期内接收SC-MCCH更新消息。
可选地，第四接收模块根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
在SC-MCCH消息调度与第四接收模块所在UE正在接收的SC-MTCH调度资源在时域上冲突时，至少在下面情况下，第四接收模块优先接收SC-MCCH消息：
所述SC-MCCH消息的变更通知指示所述SC-MCCH消息内容的变更与所述SC-MTCH相关时、所述SC-MTCH相应的MBMS业务停止时、或所述SC-MTCH相应的MBMS业务的邻区信息发生变更时。
本公开实施例提供的设置于接入网网元的第二种多播业务的业务信息变更通知装置，如图15所示，包括：
第三发送模块151，设置为在调度单小区多播业务信道SC-MTCH的载波中，发送单小区多播控制信道SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
可选地，所述装置还包括：
第二生成模块152，设置为生成所述SC-MCCH消息。
可选地，所述第三发送模块在调度SC-MTCH的载波中发送的SC-MCCH消息的内容包括下述情况的一或多种：
所述SC-MCCH消息的内容与该小区内发送的SC-MCCH承载的SC-MCCH消息的内容相同，至少包括该小区内正在进行发送的所有业务的调度信息；
与所述SC-MTCH相关的SC-MCCH消息的内容，包括以下一或多种：与所述SC-MTCH相关的调度信息、与此SC-MTCH相应的MBMS业务的标识信息、与该MBMS业务相关的邻区配置信息。
可选地，所述第三发送模块发送SC-MCCH消息的内容包括以下至少一种方式：
方式一：第三发送模块在所述SC-MTCH的调度周期中，发送物理下行控制信道PDCCH的DCI，所述PDCCH的DCI使用专用的RNTI进行加扰，所述专用RNTI加扰的DCI指示承载消息M的物理下行分享信道PDSCH的调度信息；
方式二：第三发送模块在所述调度SC-MTCH的调度周期中，发送PDCCH的DCI，该PDCCH的DCI使用调度所述SC-MTCH的RNTI进行加扰；接入网网元在该DCI中指示此次调度的PDSCH所承载的内容为消息M；
方式三：第三发送模块通过介质访问控制MAC层控制单元CE发送所述SC-MCCH消息的内容；所述SC-MCCH消息的内容包装在MAC CE中，所述MAC CE在承载所述SC-MTCH数据的MAC协议数据单元PDU中；
方式四：第三发送模块将包含SC-MCCH消息内容的消息M，承载在逻辑信道SC-MCCH中，承载消息M的SC-MCCH与承载业务数据的SC-MTCH以MAC层复用的方法复用MAC PDU；
方式一和方式二中，所述消息M包含所述SC-MCCH消息的内容；所述消息M通过逻辑信道SC-MCCH承载。
可选地，方式一和方式二中，PDCCH的DCI的重复发送次数通过系统信息块、SC-MCCH消息指示；承载所述消息M的PDSCH的重复次数通过系统信息块、SC-MCCH消息、或所述PDCCH的DCI指示。
本公开实施例提供的设置于用户设备的第二种多播业务的业务信息变更通知装置，如图16所示，包括：
第五接收模块161，设置为在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
可选地，所述装置还包括：
第六接收模块162，设置为根据SC-MCCH消息接收SC-MTCH。
可选地，所述第五接收模块在调度SC-MTCH的载波中，接收SC-MCCH消息的内容包括以下至少一种方式：
第五接收模块在所述SC-MTCH的调度周期内，检测到通过专用RNTI加扰的PDCCH的DCI时，确定该DCI所调度的PDSCH承载的内容为消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；所述消息M包含所述SC-MCCH消息的部分或全部内容；
第五接收模块在SC-MTCH调度周期内，检测到通过调度所述SC-MTCH的PDCCH的DCI指示此次调度的内容为消息M时，确定此次调度内容是消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；
第五接收模块通过接收所述SC-MTCH数据的介质访问控制MAC协议数据单元PDU，接收到所述SC-MCCH消息的内容；
第五接收模块接收到所述更新的SC-MCCH消息内容后，从下一个SC-MCCH修改周期的时间边界之后应用所接收到的更新的SC-MCCH消息的内容。
本公开实施例提供的第二种多播业务的业务信息通知装置，设置于核心网网元，如图17所示，包括：
第二指示模块171，设置为在控制面消息MBMS会话开始请求中，指示所述控制面消息中所指示的MBMS业务至少具有如下特性之一：
该MBMS业务为推送类型；
该MBMS业务信息的更新通知需要通过寻呼机制完成；
该MBMS业务为突发类型；
第四发送模块172，设置为发送所述MBMS会话开始请求给接入网网元。
可选地，所述第二指示模块还设置为在所述MBMS会话开始请求中指示所述MBMS业务的参数；所述参数包括但不限于以下一种或多种：开始时间、SAI、频率信息。
可选地，所述MBMS会话开始请求用于指示所述接入网网元按照下列的方法处理：
通过调度寻呼消息的下行控制信息DCI或者寻呼消息，在系统超帧号H-SFN＝0到H-SFN＝m-1的范围内的寻呼时机中，指示用户设备UE在接收此DCI或寻呼消息之后的下一个H-SFN mod m＝0时刻开始，接收SC-MCCH消息；在所述SC-MCCH消息中指示所述多播业务的调度信息；所述m为小区中eDRX周期的最大值，或等于1024。
虽然本公开所揭露的实施方式如上，但上述内容仅为便于理解本公开而采用的实施方式，并非用以限定本公开。任何本公开所属领域内的技术人员，在不脱离本公开所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本公开的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
本公开实施例提供的多播业务的业务信息通知方法，通过使接入网网元向用户设备UE发送多播业务信息更新指示以及指示多播业务的业务信息，使接入网网元在调度SC-MCCH消息的变更通知时，不需要在时域上错开在所有在不同载波上的SC-MTCH的调度。不具有同时接收多个载波的功能的UE，也能在其接收SC-MTCH的载波上接收到SC-MCCH消息的变更通知，从而不会错过SC-MCCH消息的变更。

Claims (21)

  1. 一种多播业务的业务信息变更通知方法，包括：
    接入网网元在调度单小区多播业务信道SC-MTCH的物理下行控制信道PDCCH的下行控制信息DCI中，或承载SC-MTCH数据的介质访问控制MAC协议数据单元PDU中，发送单小区多播控制信道SC-MCCH消息的变更通知。
  2. 根据权利要求1所述的业务信息变更通知方法，其中，所述接入网网元在所述调度SC-MTCH的PDCCH的DCI中，或承载SC-MTCH数据的MAC PDU中指示的内容包括以下内容的一种或多种的组合：
    一个比特的指示，以指示是否有SC-MCCH消息的更新；
    一个比特的指示，以指示SC-MCCH消息的更新是否与所述SC-MTCH相关，或指示SC-MCCH消息是否有与所述SC-MTCH相关的内容更新；
    一个比特的指示，以指示SC-MCCH消息内容中是否有与所述SC-MTCH无关的内容的更新。
  3. 根据权利要求1所述的业务信息变更通知方法，其中，所述接入网网元在如下情况下的一种或多种发送所述SC-MCCH消息的变更通知：
    在SC-MCCH消息有变更时，所述接入网网元调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息是否有变更；
    在SC-MCCH消息中与所述SC-MTCH相关的配置信息有变更时；包括：所述SC-MTCH的调度信息，所述SC-MTCH对应的MBMS业务的配置信息，所述SC-MTCH相关的MBMS业务的邻区配置信息；所述接入网网元调度SC-MTCH的PDCCH的DCI或承载SC-MTCH数据的MAC PDU指示所述SC-MCCH消息内容是否有与所述SC-MTCH相关的内容变更；
    接入网网元在所述SC-MTCH无关的SC-MCCH消息内容发生变更时，调度SC-MTCH的PDCCH的DCI，或承载SC-MTCH数据的MAC PDU指示SC-MCCH消息有与所述SC-MTCH无关的内容的更新。
  4. 根据权利要求1所述的业务信息变更通知方法，其中，所述接入网网元发送所述SC-MCCH消息的变更通知的时机包括如下一或多种：
    所述SC_MCCH消息发生变更的SC-MCCH修改周期内；
    在所述SC-MCCH消息发生变更的SC-MCCH修改周期的前一个SC-MCCH修改周期内。
  5. 根据权利要求1所述的业务信息变更通知方法，其中，所述接入网网元在调度SC-MTCH的PDCCH的DCI中，发送SC-MCCH消息的变更通知包括：
    接入网网元发送一次或多次不指示承载SC-MTCH的PDSCH信道的调度信息的PDCCH的DCI，但在此DCI中指示SC-MCCH消息的变更通知；所述PDCCH的DCI 使用调度所述SC-MTCH的RNTI进行加扰，并使用所述SC-MTCH的调度周期的配置进行调度发送。
  6. 一种多播业务的业务信息变更通知方法，包括：
    用户设备UE接收单小区多播控制信道SC-MCCH消息的变更通知；
    所述UE根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
  7. 根据权利要求6所述的业务信息变更通知方法，其中，所述UE根据接收到的SC-MCCH消息的变更通知接收SC-MCCH消息包括：
    所述UE在承载SC-MCCH的载波中，在接收到所述SC-MCCH消息的变更通知时刻所对应的SC-MCCH修改周期，或在接收到所述SC-MCCH消息的变更通知的时刻之后的SC-MCCH修改周期内接收SC-MCCH消息。
  8. 根据权利要求6所述的业务信息变更通知方法，其中，所述UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
    当SC-MCCH和SC-MTCH在不同的载波，UE接收到SC-MCCH消息的变更通知后，在约定的SC-MCCH修改周期内接收SC-MCCH更新消息。
  9. 根据权利要求6所述的业务信息变更通知方法，其中，UE根据接收到的所述SC-MCCH消息的变更通知，接收SC-MCCH消息包括：
    在SC-MCCH消息调度与UE正在接收的SC-MTCH调度资源在时域上冲突时，至少在下面情况下，UE优先接收SC-MCCH消息：
    所述SC-MCCH消息的变更通知指示所述SC-MCCH消息内容的变更与所述SC-MTCH相关时、所述SC-MTCH相应的MBMS业务停止时、或所述SC-MTCH相应的MBMS业务的邻区信息发生变更时。
  10. 一种多播业务的业务信息变更通知方法，包括：
    接入网网元在调度单小区多播业务信道SC-MTCH的载波中，发送单小区多播控制信道SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
  11. 根据权利要求10所述的业务信息变更通知方法，其中，所述接入网网元在调度SC-MTCH的载波中发送的SC-MCCH消息的内容包括下述情况的一或多种：
    所述SC-MCCH消息的内容与该小区内发送的SC-MCCH承载的SC-MCCH消息的内容相同，至少包括该小区内正在进行发送的所有业务的调度信息；
    与所述SC-MTCH相关的SC-MCCH消息的内容，包括以下一种或多种：与所述SC-MTCH相关的调度信息、与此SC-MTCH相应的MBMS业务的标识信息、与该MBMS业务相关的邻区配置信息。
  12. 一种多播业务的业务信息变更通知方法，包括：
    用户设备UE在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
  13. 根据权利要求12所述的业务信息变更通知方法，其中，所述UE在调度SC-MTCH的载波中，接收SC-MCCH消息的内容包括以下至少一种方式：
    UE在所述SC-MTCH的调度周期内，检测到通过专用RNTI加扰的PDCCH的DCI时，确定该DCI所调度的PDSCH承载的内容为消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；所述消息M包含所述SC-MCCH消息的部分或全部内容；
    UE在SC-MTCH调度周期内，检测到通过调度所述SC-MTCH的PDCCH的DCI指示此次调度的内容为消息M时，确定此次调度内容是消息M，将此次对消息M的调度视为一次SC-MTCH数据的调度一样进行其非活动定时器的处理；
    UE通过接收所述SC-MTCH数据的介质访问控制MAC协议数据单元PDU，接收到所述SC-MCCH消息的内容；
    UE接收到所述更新的SC-MCCH消息内容后，从下一个SC-MCCH修改周期的时间边界之后应用所接收到的更新的SC-MCCH消息的内容。
  14. 一种多播业务的业务信息通知装置，其中，包括：
    第一发送模块，设置为向用户设备UE发送多播业务信息更新指示；
    第一指示模块，设置为向所述UE指示多播业务的业务信息。
  15. 一种多播业务的业务信息通知装置，其中，包括：
    第一接收模块，设置为从接入网网元接收多播业务信息更新指示以及多播业务的业务信息；
    第二接收模块，设置为根据所述多播业务的业务信息从所述接入网网元接收多播业务。
  16. 一种多播业务的业务信息变更通知装置，其中，包括：
    第二发送模块，设置为在调度单小区多播业务信道SC-MTCH的物理下行控制信道PDCCH的下行控制信息DCI中，或承载SC-MTCH数据的介质访问控制MAC协议数据单元PDU中，发送单小区多播控制信道SC-MCCH消息的变更通知。
  17. 一种多播业务的业务信息变更通知装置，其中，包括：
    第三接收模块，设置为接收单小区多播控制信道SC-MCCH消息的变更通知；
    第四接收模块，设置为根据所述SC-MCCH消息的变更通知，接收SC-MCCH消息。
  18. 一种多播业务的业务信息变更通知装置，其中，包括：
    第三发送模块，设置为在调度单小区多播业务信道SC-MTCH的载波中，发送单小区多播控制信道SC-MCCH消息的内容，所述SC-MCCH和SC-MTCH分别在不同的载波上承载及调度发送。
  19. 一种多播业务的业务信息变更通知装置，其中，包括：
    第五接收模块，设置为在调度单小区多播业务信道SC-MTCH的载波中，接收单小区多播控制信道SC-MCCH消息的内容。
  20. 一种多播业务的业务信息通知装置，其中，包括：
    第二指示模块，设置为在控制面消息多媒体广播多播MBMS会话开始请求中，指示所述控制面消息中所指示的MBMS业务至少具有如下特性之一：
    该MBMS业务为推送类型；
    该MBMS业务信息的更新通知需要通过寻呼机制完成；
    该MBMS业务为突发类型；
    第四发送模块，设置为发送所述MBMS会话开始请求给接入网网元。
  21. 一种存储介质，设置为存储程序代码，所述程序代码用于执行如权利要求1～20任一项所述的方法。
PCT/CN2017/104572 2016-09-29 2017-09-29 多播业务的业务信息、业务信息变更通知方法及装置 WO2018059562A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/336,776 US10952034B2 (en) 2016-09-29 2017-09-29 Multicast service information change notification method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610864206.8A CN107889063B (zh) 2016-09-29 2016-09-29 多播业务的业务信息、业务信息变更通知方法及装置
CN201610864206.8 2016-09-29

Publications (1)

Publication Number Publication Date
WO2018059562A1 true WO2018059562A1 (zh) 2018-04-05

Family

ID=61763309

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/104572 WO2018059562A1 (zh) 2016-09-29 2017-09-29 多播业务的业务信息、业务信息变更通知方法及装置

Country Status (3)

Country Link
US (1) US10952034B2 (zh)
CN (1) CN107889063B (zh)
WO (1) WO2018059562A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113453161A (zh) * 2020-03-27 2021-09-28 维沃移动通信有限公司 业务传输方法、网络侧设备和终端
EP3787362A4 (en) * 2018-04-26 2022-01-19 LG Electronics Inc. METHOD FOR TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREOF

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3522576A4 (en) * 2016-11-04 2019-09-11 KYOCERA Corporation WIRELESS TERMINAL AND BASE STATION
CN114944881A (zh) * 2016-11-04 2022-08-26 Lg 电子株式会社 在无线通信系统中发送和接收数据的方法及其装置
CN110622568B (zh) * 2017-05-12 2022-05-24 瑞典爱立信有限公司 用于系统信息传输的无线电网络节点、无线设备及方法
US11224062B2 (en) * 2017-09-15 2022-01-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for configuring scheduling request, network device and terminal device
WO2019160476A1 (en) * 2018-02-15 2019-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Scheduling a single cell multicast traffic channel via a single cell multicast control channel
CN110366272B (zh) 2018-04-09 2021-10-15 华为技术有限公司 传输消息的方法和装置
CN110620994B (zh) * 2018-06-19 2022-04-22 中兴通讯股份有限公司 数据传输方法、终端和计算机可读存储介质
US11432124B2 (en) * 2018-08-31 2022-08-30 At&T Intellectual Property I, L.P. Storing tracking area identities onto a universal integrated circuit card in advanced networks
WO2021056192A1 (en) * 2019-09-24 2021-04-01 Nokia Shanghai Bell Co., Ltd. Resource rescheduling for transmission
CN113453162B (zh) * 2020-03-27 2023-05-26 维沃移动通信有限公司 业务的接收方法、配置方法、终端和网络侧设备
CN113473384B (zh) * 2020-03-31 2022-08-12 成都鼎桥通信技术有限公司 Nr小区中sc-mcch更改通知的发送方法和设备
CN113810993A (zh) * 2020-06-16 2021-12-17 展讯通信（上海）有限公司 一种多播业务数据接收方法及通信装置
WO2022006746A1 (zh) * 2020-07-07 2022-01-13 Oppo广东移动通信有限公司 接收本地mbs业务的方法及装置、终端设备、网络设备
CN113950006B (zh) * 2020-07-17 2024-01-23 维沃移动通信有限公司 业务传输方法、终端及网络侧设备
CN116156436A (zh) * 2020-08-06 2023-05-23 中国移动通信有限公司研究院 信息通信、接收、配置和发送方法、资源配置方法及设备
WO2022056796A1 (zh) * 2020-09-17 2022-03-24 华为技术有限公司 一种通信方法及装置
CN114374937B (zh) * 2020-10-19 2024-05-24 维沃移动通信有限公司 业务变更通知方法、终端及网络侧设备
WO2022141545A1 (zh) * 2020-12-31 2022-07-07 Oppo广东移动通信有限公司 一种mcch调度传输方法及装置、终端设备
CN115314842B (zh) * 2021-05-07 2024-06-14 展讯通信（上海）有限公司 信息分享方法及装置、接入点设备、用户设备
CN115604664A (zh) * 2021-07-12 2023-01-13 华为技术有限公司（Cn） 一种多播业务修改通知方法及通信装置
CN115811708A (zh) * 2021-09-14 2023-03-17 中国移动通信有限公司研究院 一种多播业务组寻呼的处理方法、装置及设备
CN117440326A (zh) * 2022-07-15 2024-01-23 维沃移动通信有限公司 通知处理方法、通知方法、装置、终端及网络侧设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1954523A (zh) * 2004-06-16 2007-04-25 Lg电子株式会社 在无线通信系统内通知控制信息的方法
CN101867874A (zh) * 2009-04-16 2010-10-20 大唐移动通信设备有限公司 一种控制信息变化的通知和确定方法、系统及装置
CN101909242A (zh) * 2009-06-05 2010-12-08 大唐移动通信设备有限公司 一种通知信息变化和获取信息的方法、系统及装置
WO2011020027A1 (en) * 2009-08-14 2011-02-17 Interdigital Patent Holdings, Inc. Mcch notification scheduling and contents
CN102035807A (zh) * 2009-09-30 2011-04-27 中兴通讯股份有限公司 一种多媒体广播多播业务通知信息的传输方法及系统
WO2014113968A1 (zh) * 2013-01-25 2014-07-31 华为技术有限公司 信道变更获知方法、通知方法及设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8077649B2 (en) * 2007-09-13 2011-12-13 Research In Motion Limited Indication of multicast control information
CN101867880B (zh) * 2009-04-14 2014-04-30 中兴通讯股份有限公司 Mcch及mcch更新指示信息控制信息的承载、接收方法与装置
CN101990162B (zh) * 2009-08-06 2013-07-31 电信科学技术研究院 Mcch变更通知的传输方法和设备
CN102083003A (zh) * 2010-09-30 2011-06-01 大唐移动通信设备有限公司 一种mbms状态请求、反馈的方法及装置
CN106470398A (zh) * 2015-08-14 2017-03-01 中兴通讯股份有限公司 Sc-mcch发送方法、sc-ptm接收方法及其装置
CN106470400B (zh) * 2015-08-14 2020-11-20 中兴通讯股份有限公司 单小区多播控制信道的资源配置方法、系统及装置
CN106470482B (zh) * 2015-08-17 2021-11-02 中兴通讯股份有限公司 Sc-mcch的资源配置方法、系统及装置
CN109644480B (zh) * 2016-08-09 2022-04-26 Lg 电子株式会社 在支持窄带物联网的无线通信系统中发送/接收数据的方法及其设备
US11039460B2 (en) * 2016-08-09 2021-06-15 Lg Electronics Inc. Method for transmitting/receiving data in wireless communication system supporting Narrow Band Internet-of-Things and device therefor
US10511941B2 (en) * 2016-08-11 2019-12-17 Kt Corporation Method for receiving multicast data and apparatus thereof
CN107734658B (zh) * 2016-08-11 2023-01-31 夏普株式会社 单小区多播业务的信息变更传输方法和设备
EP3496493B1 (en) * 2016-08-12 2021-06-30 Huawei Technologies Co., Ltd. Control information transmission method, base station and user equipment
WO2018031928A1 (en) * 2016-08-12 2018-02-15 Intel IP Corporation SUPPORT OF SC-PTM BASED MULTICASTING FOR BL/CE AND NB-IoT UEs
CN107872898B (zh) * 2016-09-28 2022-06-10 夏普株式会社 单小区多播业务接收和发送方法、以及用户设备和基站

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1954523A (zh) * 2004-06-16 2007-04-25 Lg电子株式会社 在无线通信系统内通知控制信息的方法
CN101867874A (zh) * 2009-04-16 2010-10-20 大唐移动通信设备有限公司 一种控制信息变化的通知和确定方法、系统及装置
CN101909242A (zh) * 2009-06-05 2010-12-08 大唐移动通信设备有限公司 一种通知信息变化和获取信息的方法、系统及装置
WO2011020027A1 (en) * 2009-08-14 2011-02-17 Interdigital Patent Holdings, Inc. Mcch notification scheduling and contents
CN102035807A (zh) * 2009-09-30 2011-04-27 中兴通讯股份有限公司 一种多媒体广播多播业务通知信息的传输方法及系统
WO2014113968A1 (zh) * 2013-01-25 2014-07-31 华为技术有限公司 信道变更获知方法、通知方法及设备

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3787362A4 (en) * 2018-04-26 2022-01-19 LG Electronics Inc. METHOD FOR TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREOF
US11503579B2 (en) 2018-04-26 2022-11-15 Lg Electronics Inc. Method for transmitting and receiving data in wireless communication system and apparatus therefor
CN113453161A (zh) * 2020-03-27 2021-09-28 维沃移动通信有限公司 业务传输方法、网络侧设备和终端
CN113453161B (zh) * 2020-03-27 2023-03-21 维沃移动通信有限公司 业务传输方法、网络侧设备和终端

Also Published As

Publication number Publication date
US10952034B2 (en) 2021-03-16
US20200137528A1 (en) 2020-04-30
CN107889063A (zh) 2018-04-06
CN107889063B (zh) 2022-02-18

Similar Documents

Publication Publication Date Title
WO2018059562A1 (zh) 多播业务的业务信息、业务信息变更通知方法及装置
US10939251B2 (en) User equipment and base station
US20230370905A1 (en) System and method for maintaining multicast broadcast service continuity in idle and inactive states
WO2018082589A1 (zh) 用于传输数据的方法、终端设备和网络设备
EP3324666B1 (en) Sc-mcch resource configuration method and apparatus
WO2018028713A1 (zh) 动态调度的方法及装置
EP3413631B1 (en) Terminal device, base station device and communications methods
US11290946B2 (en) Base station, user equipment and related method
EP3051847A1 (en) Group communication method, device and system
US20230371046A1 (en) Enhanced resource allocation for multicast broadcast services
CN107920333B (zh) 组播调度方法、harq信息接收方法、用户设备和基站
WO2016123772A1 (zh) 一种传输业务数据的方法和装置
WO2021204088A1 (zh) 一种通信方法及相关设备
EP4380245A2 (en) Power saving operation for multicast and broadcast services
WO2011038644A1 (zh) 一种子帧标识信息的传输方法及系统
WO2017121183A1 (zh) 传输方法、装置及接入网网元、用户设备和存储介质
WO2022031109A1 (en) Methods and systems for managing multicast broadcast service (mbs) services
WO2018059410A1 (zh) 业务回话发送、接收方法、装置、系统及存储介质
WO2018028534A1 (zh) 会话停止的指示、处理方法及装置、存储介质
CN113924790A (zh) 用于监测唤醒信号的方法及装置
WO2011011946A1 (zh) 一种多媒体广播和组播业务通知消息的发送方法和装置
WO2018141178A1 (zh) 信息传输、处理方法及装置、设备、终端和系统、存储介质
JP6548716B2 (ja) 無線システムにおける進化したマルチメディアブロードキャスト及びマルチキャストサービス（ｅＭＢＭＳ）カウンティングを実行する方法
WO2018014247A1 (zh) 系统信息的获取装置、方法以及通信系统
US20230276407A1 (en) Methods for paging a wireless devices, related network nodes and wireless device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17855012

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17855012

Country of ref document: EP

Kind code of ref document: A1