WO2017028504A1 - 一种多播业务读取、发送方法及相关设备 - Google Patents

一种多播业务读取、发送方法及相关设备 Download PDF

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Publication number
WO2017028504A1
WO2017028504A1 PCT/CN2016/072794 CN2016072794W WO2017028504A1 WO 2017028504 A1 WO2017028504 A1 WO 2017028504A1 CN 2016072794 W CN2016072794 W CN 2016072794W WO 2017028504 A1 WO2017028504 A1 WO 2017028504A1
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WIPO (PCT)
Prior art keywords
mcch
subframe
configuration information
base station
information
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PCT/CN2016/072794
Other languages
English (en)
French (fr)
Inventor
李秉肇
高永强
张戬
权威
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华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680002688.4A priority Critical patent/CN106912200B/zh
Priority to KR1020187005951A priority patent/KR102130957B1/ko
Priority to EP16836369.5A priority patent/EP3337198B1/en
Priority to JP2018507498A priority patent/JP6672450B2/ja
Priority to KR1020197026658A priority patent/KR102261243B1/ko
Priority to AU2016309108A priority patent/AU2016309108B2/en
Publication of WO2017028504A1 publication Critical patent/WO2017028504A1/zh
Priority to US15/896,211 priority patent/US10743146B2/en
Priority to US16/664,025 priority patent/US11337037B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to a multicast service reading and transmitting method and related device.
  • LTE Long Term Evolution
  • MBMS Multimedia Broadcast Multicast Service
  • eMBMS evolved MBMS
  • MCCH Multimedia Control Channel, multicast
  • the control channel transmits the control information of the MBMS, and has a BCCH (Broadcast Control Channel) to transmit MCS (Modulation and Coding Scheme) information of the MCCH.
  • BCCH Broadcast Control Channel
  • the associated logical channel of the MBMS includes a BCCH, an MCCH, and an MTCH (MBMS point-to-multipoint control channel), where the BCCH is used by the network to broadcast system information to the UE (User Equipment, user equipment);
  • the BCCH is used by the network to broadcast system information to the UE (User Equipment, user equipment);
  • one MCCH may correspond to one or more MTCHs, and only the UE that can read the MBMS service can use the MCCH, and the base station will calculate the MCS and MCCH period information of the MCCH (MCCH
  • the period information includes a modification period (MP) and a repetition period (RP) to notify the UE by system broadcast.
  • MP modification period
  • RP repetition period
  • the MTCH is a point-to-multipoint downlink channel used by the network to transmit MBMS service data to the UE. Only the UE that can read the MBMS service can use the MTCH.
  • the MTCH information is indicated by its corresponding MCCH, and the network uses the BCCH direction.
  • the UE indicates the MCCH, and then uses the MCCH to indicate the MTCH to the UE, thereby achieving the purpose of enabling the UE to read the MBMS service carried on the MTCH.
  • the MCCH message can only pass the MBSFN (Multimedia Broadcast Multicast Service Single Frequency Network).
  • the frequency network is transmitted in a subframe, and the MBSFN subframe is a dedicated subframe, and only one data block can be transmitted.
  • the UE can obtain the MCCH message by reading the MBSFN subframe at the corresponding time point. Since MBSFN subframes can only transmit one data block, one data block can be used to transmit MCCH messages and can also transmit other data than MCCH messages. However, if the MCCH message cannot fill all the resources of the MBSFN subframe, other data cannot be sent on the MBSFN subframe, thereby causing waste of resources.
  • MBSFN Multimedia Broadcast Multicast Service Single Frequency Network
  • the embodiment of the invention provides a method for reading and transmitting multicast services and related devices, which reduces waste of MBSFN subframes.
  • an embodiment of the present invention provides a method for reading a multicast service, including:
  • the user equipment UE determines the multicast control channel MCCH configuration information, where the MCCH configuration information includes the radio network temporary identifier MCCH-RNTI and the MCCH transmission period information of the multicast control channel;
  • the UE uses the MCCH-RNTI to read an MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of a multicast service;
  • the UE reads the multicast service according to the configuration information of the multicast service.
  • the sending period information of the MCCH includes an MCCH repetition period and an offset parameter of the sending MCCH.
  • the determining, by the UE, the MCCH sending time information according to the sending period information of the MCCH includes:
  • the UE determines, according to the MCCH repetition period and the offset parameter of the sending MCCH, the subframe position corresponding to the time when the MCCH is sent.
  • the UE is according to the MCCH
  • the repetition period and the offset parameter of the sending MCCH determine the subframe position corresponding to the time when the MCCH is sent, including:
  • the UE determines, according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the sending MCCH, the subframe position corresponding to the time when the MCCH is sent.
  • a third possible implementation manner of the first aspect if there are multiple candidate subframes for transmitting the MCCH in each MCCH repetition period, the UE according to the The MCCH repetition period and the offset parameter of the MCCH are sent, and the subframe position corresponding to the time when the MCCH is sent is determined, including:
  • the UE determines, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a subframe position set corresponding to the time when the MCCH is sent.
  • the UE determines, according to the MCCH repetition period and an offset parameter of sending an MCCH, to send the MCCH
  • the sub-frame position corresponding to the time including:
  • the MCCH subframe set configuration information is an MCCH configuration signaling carried by the base station to the UE
  • the MCCH configuration signaling is a system broadcast message or a dedicated signaling of the UE.
  • the MCCH subframe set configuration information includes an MCCH subframe sequence; or the MCCH The subframe set configuration information includes an MCCH subframe start position; or the MCCH subframe set configuration information includes the MCCH subframe start position and transmission duration information.
  • the MCCH subframe sequence is a bitmap sequence
  • the UE sends a frame and an MCCH according to the MCCH
  • the subframe set configuration information is used to determine a subframe location set corresponding to the MCCH transmission time information, including:
  • the MCCH subframe set configuration information includes the MCCH subframe start location, and the MCCH sending time
  • the subframe position set corresponding to the information includes 1 subframe, and the subframe is the The subframe corresponding to the start position of the MCCH subframe.
  • the MCCH subframe set configuration information includes the MCCH subframe start location and the sending duration And the determining, by the UE, the subframe location set corresponding to the MCCH transmission time information, according to the frame and MCCH subframe set configuration information sent by the MCCH, including:
  • the starting subframe transmitted by the MCCH, and the MBSFN subframe configuration determines that all subframes of the MCCH are transmitted.
  • the method further includes:
  • the UE determines, according to the MCCH subframe set configuration information, all subframes that send the MCCH, and uses any one of the subframes of the sent MCCH as the subframe of the MCCH modification notification.
  • the UE uses the MCCH-RNTI to send time in the MCCH Information reads MCCH messages, including:
  • the UE uses the MCCH-RNTI to read a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH at a subframe position corresponding to a time when the MCCH is sent;
  • the UE reads the MCCH message at a resource location of an MCCH message specified in the PDCCH or EPDCCH.
  • the configuration information of the multicast service includes a temporary The multicast group identifies and schedules the G-RNTI of the multicast service, and the UE reads the multicast service according to the configuration information of the multicast service, including:
  • the UE reads the multicast service corresponding to the temporary multicast group identifier according to the G-RNTI of the scheduled multicast service.
  • the UE performs the G-RNTI reading of the multicast service according to the scheduling,
  • the multicast service corresponding to the temporary multicast group identifier includes:
  • the UE reads PDCCH scheduling information according to the G-RNTI of the multicast service
  • the UE determines a frequency resource and a modulation mode corresponding to the multicast service corresponding to the temporary multicast group identifier according to the PDCCH scheduling information, and reads the multicast service according to the frequency resource and the modulation mode.
  • the configuration information of the multicast service includes a temporary Multicast group identification and scheduling information of the multicast service
  • the multicast service scheduling information includes a frequency resource and a modulation mode used to read the multicast multicast service
  • the UE is configured according to the configuration information of the multicast service.
  • Read multicast services including:
  • the method further includes:
  • the UE determines that the MCCH is changed, the UE re-reads the MCCH message according to the configuration information of the MCCH.
  • the determining, by the UE, whether the MCCH is changed includes:
  • the UE reads the PDCCH or the EPDCCH according to the MCCH-RNTI to obtain an MCCH change flag in the PDCCH or the EPDCCH, where the change identifier includes any one of the following change identifiers: PDCCH or EPDCCH. Change the change identifier, NDI, process ID, and combination of NDI and process number in the flag field;
  • the UE determines that the MCCH is changed
  • the UE determines that the MCCH changes.
  • the determining, by the UE, whether the MCCH is changed includes:
  • the UE reads the modification notification field included in the PDCCH corresponding to the M-RNTI in a non-MBSFN subframe;
  • the UE determines that the MCCH is changed.
  • the UE re-reads according to the configuration information of the MCCH
  • the MCCH message includes:
  • the UE re-reads the MCCH message according to the configuration information of the MCCH in determining a current MCCH modification period in which the MCCH changes.
  • the UE re-reads the MCCH message according to the configuration information of the MCCH in a next MCCH modification period after determining a current MCCH modification period in which the MCCH changes.
  • the determining, by the UE, the MCCH modification period of the MCCH includes:
  • the UE determines that the MCCH modification period is a modification period of the MCCH
  • the UE selects parameters according to the MCCH period and the multicast that the UE needs to read.
  • the service determines the modification of the MCCH cycle
  • the UE needs to read according to the MCCH selection parameter and the UE.
  • the multicast service determines the MCCH to be read; the UE determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the UE needs to read.
  • the MCCH configuration information includes a predefined configuration The information, at least one of the configuration information sent by the base station to the UE by the system broadcast message.
  • an embodiment of the present invention provides a method for transmitting a multicast service, including:
  • the base station determines MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH;
  • the base station determines MCCH transmission time information according to the transmission period information of the MCCH;
  • the base station sends an MCCH message by using the MCCH-RNTI in the MCCH sending time information, where the MCCH message includes configuration information of a multicast service;
  • the base station sends the multicast service according to the configuration information of the multicast service.
  • the sending period information of the MCCH includes an MCCH repetition period and an offset parameter of the sending MCCH.
  • the base station determines, according to the MCCH repetition period and the offset parameter of the sending MCCH, the subframe position corresponding to the time when the MCCH is sent.
  • the base station is configured according to the MCCH
  • the repetition period and the offset parameter of the sending MCCH determine the subframe position corresponding to the time when the MCCH is sent, including:
  • the base station determines, according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the sent MCCH, the subframe position corresponding to the time when the MCCH is sent.
  • determining, by the base station, the subframe position corresponding to the time for sending the MCCH according to the MCCH repetition period and the offset parameter of the sending MCCH including:
  • the base station determines, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a subframe position set corresponding to the time when the MCCH is transmitted.
  • the base station determines, according to the MCCH repetition period and the offset parameter of the sending MCCH, the sending the MCCH
  • the sub-frame position corresponding to the time including:
  • the base station determines, according to the frame sent by the MCCH and the MCCH subframe set configuration information, a subframe position set corresponding to the MCCH transmission time information.
  • the MCCH subframe set configuration information includes an MCCH subframe sequence; or the M CCH subframe set The configuration information includes an MCCH subframe start position; or the MCCH subframe set configuration information includes the MCCH subframe start position and transmission duration information.
  • the MCCH subframe set configuration information is determined by the base station according to the MCCH subframe information to be sent;
  • the MCCH subframe information to be sent includes the MCCH subframe position to be transmitted, the MCCH subframe set configuration information includes an MCCH subframe sequence, and the MCCH subframe sequence is the base station according to the to-be-sent MCCH.
  • the frame position is determined; or the MCCH subframe information to be sent includes the number of MCCH subframes to be sent. If the MCCH subframe to be transmitted includes one subframe, the MCCH subframe set configuration information includes an MCCH subframe. a starting position, if the MCCH subframe to be transmitted includes multiple subframes, the MCCH subframe set configuration information includes an MCCH subframe start position and transmission duration information.
  • the MCCH subframe sequence is a bitmap sequence
  • the base station sends according to the MCCH And determining, by the frame and the MCCH subframe set configuration information, the subframe position set corresponding to the MCCH transmission time information, including:
  • the MCCH subframe set configuration information includes the MCCH subframe start location, the MCCH sending time
  • the subframe position set corresponding to the information includes one subframe, and the subframe is a subframe corresponding to the start position of the MCCH subframe.
  • the MCCH subframe set configuration information includes the MCCH subframe start location and the sending duration And the determining, by the base station, the subframe location set corresponding to the MCCH transmission time information, according to the frame and MCCH subframe set configuration information sent by the MCCH, including:
  • the starting subframe transmitted by the MCCH, and the MBSFN subframe configuration determines that all subframes of the MCCH are transmitted.
  • the method further includes:
  • the base station determines, according to the MCCH subframe set configuration information, all subframes that send the MCCH, and uses any one of the subframes of the MCCH to be the subframe of the MCCH modification notification.
  • the base station uses the MCCH-RNTI to send time in the MCCH
  • the information is sent to the MCCH message, including:
  • the base station sends, by using the MCCH-RNTI, a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH at a subframe position corresponding to a time when the MCCH is sent;
  • the base station sends the MCCH message at a resource location of an MCCH message specified in the PDCCH or EPDCCH.
  • the configuration information of the multicast service includes a temporary The multicast group identifies and schedules the G-RNTI of the multicast service, and the base station sends the multicast service according to the configuration information of the multicast service, including:
  • the base station sends a multicast service corresponding to the temporary multicast group identifier according to the G-RNTI that schedules the multicast service.
  • the base station sends, according to the scheduling, the G-RNTI of the multicast service, and the temporary The multicast group identifies the corresponding multicast service, including:
  • the eNB sends PDCCH scheduling information to the UE according to the G-RNTI of the multicast service, where the PDCCH scheduling information carries the frequency resource and the modulation mode, and sends the PDCCH according to the frequency resource and the modulation mode. Multicast business.
  • the configuration information of the multicast service includes a temporary The multicast group identifier and the scheduling information of the multicast service
  • the multicast service scheduling information includes a frequency resource and a modulation mode used by the multicast multicast service, where the base station sends according to the configuration information of the multicast service.
  • Multicast services including:
  • the base station sends a multicast service corresponding to the temporary multicast group identifier according to the frequency resource and the modulation mode used by the multicast multicast service.
  • the method after the determining, by the base station, the MCCH configuration information, the method also includes:
  • the base station determines that the MCCH is changed, the base station sends the MCCH change know;
  • the base station resends the MCCH message according to the configuration information of the MCCH.
  • the sending, by the base station, the MCCH change notification includes:
  • the base station sends a change identifier in the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period, where the change identifier includes any one of the following change identifiers: a change identifier in the PDCCH or EPDCCH change flag field, and an NDI , process number, and a combination of NDI and process number;
  • the change identifier is a change identifier different from the previous modification period, or the change identifier is a change identifier of the first preset value.
  • the sending, by the base station, the MCCH change notification includes:
  • the base station sends a bit value in the modification notification field corresponding to the MCCH, where the bit value is the same as the second preset value, and the modification notification field corresponding to the MCCH is the PDCCH corresponding to the M-RNTI in the non-MBSFN subframe.
  • the base station resends the information according to the configuration information of the MCCH
  • the MCCH message includes:
  • the base station resends the MCCH message according to the configuration information of the MCCH in determining a current MCCH modification period in which the MCCH changes;
  • the base station resends the MCCH message according to the configuration information of the MCCH in a next MCCH modification period after determining a current MCCH modification period in which the MCCH changes.
  • the base station determines an MCCH modification period of the MCCH, include:
  • the base station determines that the MCCH modification period is a modification period of the MCCH
  • the base station selects parameters according to the MCCH period and the multicast service that the base station needs to send. Determining a modification period of the MCCH;
  • the base station needs to send according to the MCCH selection parameter and the base station.
  • the broadcast service determines the MCCH to be sent; the base station determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the base station needs to send.
  • the MCCH configuration information includes predefined configuration information, an MCE direction At least one of the configuration information sent by the base station.
  • the invention provides a user equipment UE comprising various modules for performing the method steps of the first aspect.
  • the invention provides a base station comprising respective modules for performing the method steps of the second aspect.
  • a fifth aspect provides a user equipment UE, where the UE includes a receiver, a transmitter, and a processor, and the processor is configured to support the UE to perform a corresponding function in the foregoing method.
  • the transmitter is used to support communication between the UE and the mobile network server.
  • the UE may also include a memory for coupling with the processor that holds the necessary program instructions and data for the UE.
  • the UE may also include a communication interface for the UE to communicate with other devices or communication networks.
  • a base station in a sixth aspect, includes a receiver, a transmitter, and a processor, and the processor is configured to support the base station to perform a corresponding function in the foregoing method.
  • the transmitter is used to support communication between the base station and the mobile network server.
  • the base station may further include a memory for coupling with the processor In addition, it stores the necessary program instructions and data of the base station.
  • the base station can also include a communication interface for the base station to communicate with other devices or communication networks.
  • the present invention provides a computer storage medium for storing computer software instructions for use by the UE, comprising a program designed to perform the above aspects.
  • the present invention provides a computer storage medium for storing computer software instructions for use by the base station, comprising a program designed to perform the above aspects.
  • the user equipment UE determines the MCCH configuration information, where the configuration information includes the MCCH-RNTI and the MCCH transmission period information, and the UE determines the MCCH transmission time information according to the MCCH transmission period information.
  • the UE uses the MCCH-RNTI to read the MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of the multicast service; and the UE reads the multicast service according to the configuration information of the multicast service.
  • the UE identifies the MCCH in one subframe by using the configured MCCH-RNTI, so that the MCCH can be transmitted in any one subframe and can be recognized by the UE, and is not limited to being transmitted in the MBSFN subframe.
  • other non-MBSFN subframes are also available for transmission of the MCCH. Therefore, in the embodiment of the present invention, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the MBSFN subframe due to the MCCH message to be transmitted.
  • the MCCH cannot fully utilize the resources of the MBSFN subframe, and the MBSFN subframe resource is wasted.
  • FIG. 1 is a flowchart of a method for reading a multicast service according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for transmitting a multicast service according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a network architecture according to an embodiment of the present disclosure.
  • FIG. 4 is a flowchart of a method for transmitting and receiving a multicast service according to an embodiment of the present invention
  • FIG. 8 are schematic diagrams of an MCCH transmission mechanism according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a first embodiment of a UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a first embodiment of a base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a second embodiment of a UE according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a second embodiment of a base station according to an embodiment of the present invention.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a flowchart of a first embodiment of a method for reading a multicast service according to an embodiment of the present invention.
  • the multicast service reading method provided by an embodiment of the present invention may include steps S101 to S104:
  • the user equipment UE determines MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the user equipment UE may include a mobile phone, a tablet computer, a personal digital assistant (PDA), a mobile internet device (MID), a smart wearable device (such as a smart watch, a smart bracelet). ) and other types of UE.
  • PDA personal digital assistant
  • MID mobile internet device
  • smart wearable device such as a smart watch, a smart bracelet.
  • the embodiment of the invention is not limited.
  • the configuration information of the MCCH may be a predefined configuration information (such as the configuration information of the MCCH that the UE and the base station mutually agree on by the protocol); or the configuration information of the MCCH may be sent by the UE receiving the base station.
  • the system broadcasts the message, and the foregoing broadcast message carries the foregoing MCCH configuration information.
  • the configuration information of the MCCH may be a part of a predefined part that is sent by the base station to the UE by using a system broadcast message. For example, the sending period of the MCCH-RNTI and the MCCH is The base station sends the system broadcast message to the UE, and other configuration information is predefined, and the like.
  • the MCCH-RNTI is used by the UE to perform a PDCCH (Physical Downlink Control Channel) or an EPDCCH (Enhanced Physical Downlink Control Channel).
  • the MCCH configuration information includes at least one MCCH configuration information. If the MCCH configuration information includes multiple pieces of MCCH configuration information, the MCCH-RNTI included in the MCCH configuration information of each MCCH may be the same MCCH-RNTI, or may be each MCCH. There are different MCCH-RNTIs.
  • the transmission period information of the MCCH includes an MCCH modification period, an MCCH repetition period, and an offset parameter of the transmission MCCH. An MCCH can be configured with one modification period or multiple modification periods.
  • the MCCH transmission period information also includes the MCCH period selection parameter corresponding to each MCCH modification period, so that the UE can use the MCCH.
  • the period selection parameter selects the modification period of the MCCH.
  • the MCCH configuration information includes multiple MCCH configuration information
  • the MCCH configuration information further includes service type information corresponding to the MCCH, and the service type information corresponding to the MCCH is used by the UE to select which one of the multiple MCCHs to read according to the service type information.
  • the MCCH configuration information includes at least one MCCH configuration information, and the UE may read one MCCH message or read multiple MCCH messages.
  • the MCCH configuration information includes only one MCCH configuration information, and the UE is configured according to the MCCH configuration information.
  • the foregoing MCCH configuration information includes the MCCH message; and the MCCH configuration information includes multiple MCCH configuration information,
  • the UE may select one of the multiple MCCHs to be read according to the service type information corresponding to the MCCH, or the UE may select multiple MCCHs in the multiple MCCHs according to the service type information corresponding to the MCCH, and the UE may also read All MCCH messages included in the above MCCH configuration information.
  • the principle of reading an MCCH message by the UE is the same as the principle of reading multiple MCCH messages. Therefore, in the embodiment of the present invention, the UE reads an MCCH message as an example for detailed description.
  • the UE determines the MCCH transmission time information according to the sending period information of the MCCH.
  • the UE may determine the MCCH transmission time information according to the MCCH transmission period information.
  • the UE may determine, according to the MCCH repetition period and the MCCH offset parameter, the subframe position corresponding to the time for transmitting the MCCH.
  • the subframe position corresponding to the time for transmitting the MCCH is the subframe position for transmitting the MCCH.
  • the UE determines the subframe position corresponding to the time when the MCCH is transmitted according to the MCCH repetition period and the offset parameter of the MCCH.
  • the specific implementation manner may be that the UE determines the subframe position corresponding to the time for transmitting the MCCH according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the MCCH.
  • R is the MCCH repetition period
  • S is the offset parameter of the MCCH.
  • the UE determines the subframe corresponding to the time for transmitting the MCCH according to the MCCH repetition period and the offset parameter of the MCCH.
  • the specific implementation manner of the location may be: the UE determines, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a subframe position set corresponding to the time when the MCCH is sent.
  • SFN A frame that is determined to be the MCCH when the above formula is satisfied.
  • the sub-frame contains the sub-frame.
  • the frame is determined as a set of subframe positions corresponding to the time at which the MCCH is transmitted.
  • the UE uses the MCCH-RNTI to read an MCCH message in the MCCH sending time information, where the MCCH message includes configuration information of a multicast service.
  • the UE uses the MCCH-RNTI to read the MCCH message in the MCCH transmission time information, and the UE performs the physical downlink in the subframe position corresponding to the time when the UE sends the MCCH by using the MCCH-RNTI.
  • the UE reads the multicast service according to the configuration information of the multicast service.
  • the specific implementation manner of the UE reading the multicast service according to the configuration information of the multicast service is The UE reads the multicast service corresponding to the temporary multicast group identifier according to the G-RNTI of the scheduled multicast service.
  • the UE performs the multicast service corresponding to the foregoing temporary multicast group identifier according to the G-RNTI of the scheduled multicast service, where the UE reads the PDCCH scheduling information according to the G-RNTI of the multicast service.
  • the UE determines a frequency resource and a modulation mode corresponding to the multicast service corresponding to the temporary multicast group identifier according to the PDCCH scheduling information, and reads the multicast service according to the frequency resource and the modulation mode.
  • the UE reads the multicast service according to the configuration information of the multicast service.
  • the UE reads the multicast service corresponding to the temporary multicast group identifier according to the G-RNTI of the scheduled multicast service and the transmission mode of the multicast service.
  • the UE performs the multicast service corresponding to the foregoing temporary multicast group identifier according to the G-RNTI of the scheduled multicast service, where the UE reads the PDCCH scheduling information according to the G-RNTI of the multicast service.
  • the UE determines a frequency resource and a modulation mode corresponding to the multicast service corresponding to the temporary multicast group identifier according to the PDCCH scheduling information, and reads the multicast service according to the frequency resource, the modulation mode, and the transmission mode of the multicast service.
  • the configuration information of the multicast service includes the temporary multicast group identifier and the scheduling information of the multicast service
  • the UE reads the specific content of the multicast service according to the configuration information of the multicast service.
  • the method is: the UE reads the multicast service corresponding to the temporary multicast group identifier according to the scheduling information of the multicast service.
  • the UE performs the multicast service corresponding to the temporary multicast group identifier according to the scheduling information of the foregoing multicast service, where the UE determines, according to the scheduling information of the multicast service, the frequency resource corresponding to the multicast service, Time resources, modulation methods, coding methods, and the like, and then read the above multicast service.
  • the configuration information of the multicast service includes a temporary multicast group identifier, a scheduling information of the multicast service, and a transmission mode of the multicast service, where the UE reads the multicast service according to the configuration information of the multicast service.
  • the UE reads the multicast service corresponding to the temporary multicast group identifier according to the scheduling information of the multicast service and the transmission mode of the multicast service.
  • the UE reads the multicast service corresponding to the temporary multicast group identifier according to the scheduling information of the multicast service and the transmission mode of the multicast service, and the UE performs the foregoing according to the scheduling information of the multicast service.
  • the user equipment UE determines the configuration information of the MCCH, where the configuration information includes the transmission period information of the MCCH-RNTI and the MCCH, and the UE determines the MCCH transmission according to the sending period information of the MCCH.
  • Time information the UE uses the MCCH-RNTI to read an MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of a multicast service; and the UE reads according to the configuration information of the multicast service. Multicast business.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be transmitted in any one subframe, not only in the MBSFN subframe, and thus in other non-MBSFN sub-frames.
  • the frame may also be used to transmit the MCCH. Therefore, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the waste of the MBSFN subframe.
  • the multicast service reading method shown in FIG. 1 further includes:
  • the UE determines that the MCCH is changed, the UE re-reads the MCCH message according to the MCCH configuration information.
  • the specific implementation manner of the UE re-reading the MCCH message according to the configuration information of the MCCH is: the UE re-reads the MCCH message according to the configuration information of the MCCH in determining a current MCCH modification period in which the MCCH is changed; or The UE re-reads the MCCH message according to the configuration information of the MCCH in the next MCCH modification period after determining the current MCCH modification period in which the MCCH is changed.
  • the multicast service reading method shown in FIG. 1 further includes:
  • the UE determines an MCCH modification period of the MCCH, and the UE reads the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period to obtain an MCCH change flag in the PDCCH or the EPDCCH, where the change identifier includes any one of the following change identifiers. a combination of a change identifier, an NDI, a process number, and an NDI and a process number in the PDCCH or EPDCCH change flag field; the UE determines whether the MCCH is changed according to the MCCH change flag; and if the MCCH change flag and the previous modification period are changed If the flags are different, the UE determines that the MCCH is changed. Alternatively, if the MCCH change flag is the same as the first preset value, the UE determines that the MCCH is changed.
  • the multicast service reading method shown in FIG. 1 further includes:
  • the UE Determining, by the UE, the MCCH modification period of the MCCH and the M-RNTI corresponding to the MCCH modification period; the UE reading the modification notification field included in the PDCCH corresponding to the M-RNTI in the non-MBSFN subframe;
  • the bit value corresponding to the MCCH is the same as the second preset value, and the UE determines that the MCCH is changed.
  • the specific UE may determine that the MCCH modification period of the MCCH is: if the MCCH transmission period information includes only one MCCH modification period, the UE determines that the MCCH modification period is the MCCH modification period; or
  • the MCCH transmission period information includes a plurality of MCCH modification periods, and each MCCH modification period has a period selection parameter corresponding to the MCCH modification period, and the UE determines the MCCH according to the MCCH period selection parameter and the multicast service that the UE needs to read.
  • each MCCH has multiple MCCH modification periods, and each MCCH has an MCCH selection parameter corresponding to the MCCH, the UE is configured according to the MCCH.
  • the selection parameter and the multicast service that the UE needs to read determine the MCCH to be read; the UE determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the UE needs to read.
  • FIG. 2 is a flowchart of a method for transmitting and receiving multicast services according to an embodiment of the present invention. As shown in FIG. 2, the flowchart of the method for transmitting and receiving multicast services provided by an embodiment of the present invention may include steps S201 to S204:
  • the base station determines MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the base station determines MCCH transmission time information according to the MCCH transmission period information.
  • the determining, by the base station, the MCCH transmission time information according to the sending period information of the MCCH is: the base station determines, according to the MCCH repetition period and the offset parameter of the sending MCCH, the subframe position corresponding to the time for transmitting the MCCH. .
  • the base station determines, according to the MCCH repetition period and the offset parameter of the MCCH, the subframe position corresponding to the time for transmitting the MCCH. In a specific implementation manner, the base station determines, according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the MCCH, the subframe position corresponding to the time for transmitting the MCCH.
  • the base station determines the subframe corresponding to the MCCH transmission time information according to the MCCH repetition period and the offset parameter of the MCCH.
  • the specific implementation manner of the location is: the base station determines, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a subframe position set corresponding to the time when the MCCH is sent.
  • the base station sends an MCCH message in the MCCH sending time information by using the MCCH-RNTI, where the MCCH message includes configuration information of a multicast service.
  • the base station sends the MCCH message by using the MCCH-RNTI to send the MCCH message in the MCCH transmission time information.
  • the base station sends the physical downlink control channel PDCCH by using the MCCH-RNTI to send the MCCH time.
  • PDCCH physical downlink control channel
  • the base station sends a multicast service according to the configuration information of the multicast service.
  • the configuration information of the multicast service includes at least one of the following information: a temporary multicast group identifier (such as TMGI), a G-RNTI for scheduling a multicast service, and a multicast service.
  • TMGI temporary multicast group identifier
  • G-RNTI for scheduling a multicast service
  • TM3 open loop multiple input multiple output mode
  • the specific implementation manner of the base station transmitting the multicast service according to the configuration information of the multicast service is: the base station sends the multicast service corresponding to the temporary multicast group identifier according to the G-RNTI of the scheduled multicast service. .
  • the base station sends the multicast service corresponding to the temporary multicast group identifier according to the G-RNTI of the scheduled multicast service.
  • the specific implementation manner is: the base station sends the PDCCH scheduling information or the E to the UE according to the G-RNTI of the multicast service.
  • PDCCH scheduling information wherein the PDCCH scheduling information or the E-PDCCH scheduling signal carries the frequency resource and the modulation scheme, and the multicast service is transmitted according to the frequency resource and the modulation scheme.
  • the G-RNTI for scheduling the multicast service and the temporary multicast group identifier MCE are sent to the base station.
  • the specific implementation manner is: the base station receives the identifier configuration information sent by the MCE to the base station, where the identifier configuration information is a multicast service initiation notification, and the multicast service initiation notification carries the temporary multicast group identifier of the service that carries the multicast transmission, and the scheduling is performed.
  • the G-RNTI of the broadcast service the base station determines the G-RNTI and the temporary multicast group identifier of the scheduled multicast service for reading the multicast service according to the multicast service initiation notification.
  • the G-RNTI and the temporary multicast group identifier for scheduling the multicast service are sent to the base station by the MCE to ensure that the G-RNTI and the temporary multicast group identifier of the scheduled multicast service read by the UE are the same.
  • the specific implementation manner of the base station transmitting the multicast service according to the configuration information of the multicast service is: the base station sends the PDCCH scheduling information or the E-PDCCH scheduling message to the UE according to the G-RNTI of the multicast service.
  • the PDCCH scheduling information or the E-PDCCH scheduling signal carries the frequency resource and the modulation scheme, and transmits the multicast service in the transmission mode of the multicast service according to the frequency resource and the modulation scheme.
  • the specific implementation manner of the base station transmitting the multicast service according to the configuration information of the multicast service is: the base station sends the temporary multicast group identifier according to the scheduling information of the multicast service. Know the corresponding multicast business.
  • the base station determines the frequency resource, the time resource, the modulation mode, the coding mode, and the like corresponding to the multicast service according to the scheduling information of the multicast service, and then according to the frequency resource, the time resource, the modulation mode, and the corresponding manner of the multicast service.
  • the above-mentioned multicast service is transmitted in an encoding manner or the like.
  • the specific implementation manner of the base station transmitting the multicast service according to the configuration information of the multicast service is: the base station sends the temporary multicast according to the scheduling information of the multicast service and the transmission mode of the multicast service.
  • the group ID corresponds to the multicast service.
  • the base station determines the MCCH configuration information, where the MCCH configuration information includes the MCCH-RNTI and the MCCH transmission period information; the base station determines the MCCH transmission time information according to the MCCH transmission period information; The base station sends an MCCH message by using the MCCH-RNTI in the MCCH transmission time information, where the MCCH message includes configuration information of a multicast service, and the base station sends a multicast service according to the configuration information of the multicast service.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be transmitted in any one subframe, not only in the MBSFN subframe, and thus in other non-MBSFN sub-frames.
  • the frame may also be used to transmit the MCCH. Therefore, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the waste of the MBSFN subframe.
  • the multicast service sending method shown in FIG. 7 further includes:
  • the base station determines that the MCCH changes, the base station sends the MCCH change notification;
  • the base station resends the MCCH message according to the configuration information of the MCCH.
  • the method for the base station to send the MCCH change notification is: the base station determines an MCCH modification period of the MCCH, and the base station sends a change identifier in the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period, where the change identifier includes an NDI And/or a process number; wherein the change identifier is a change identifier different from the previous modification period, or the change identifier is a change identifier of the first preset value.
  • the method for the base station to send the foregoing MCCH change notification is: the base station determines an MCCH modification period of the MCCH and an M-RNTI corresponding to the MCCH modification period; Transmitting a bit value in the modification notification field corresponding to the MCCH, where the bit value is the same as the second preset value, and the modification notification field corresponding to the MCCH is a non-MBSFN subframe, and the modification notification field included in the PDCCH corresponding to the M-RNTI is The modification notification domain corresponding to the above MCCH.
  • the base station resends the MCCH message according to the configuration information of the foregoing MCCH, including:
  • the base station resends the MCCH message according to the configuration information of the MCCH in determining the current MCCH modification period in which the MCCH is changed; or the base station determines, according to the MCCH configuration information, the next MCCH after determining the current MCCH modification period in which the MCCH is changed.
  • the modification period resends the above MCCH message.
  • the determining, by the base station, the MCCH modification period of the foregoing MCCH includes:
  • the base station determines that the MCCH modification period is the modification period of the MCCH; or, if the MCCH transmission period information includes multiple MCCH modification periods, and each MCCH modification period And having a period selection parameter corresponding to the MCCH modification period, where the base station determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the base station needs to send; or, if the MCCH configuration information includes multiple MCCHs, each MCCH has a plurality of MCCH modification periods, and each MCCH has an MCCH selection parameter corresponding to the MCCH, and the base station determines, according to the MCCH selection parameter and the multicast service that the base station needs to send, the MCCH to be sent; the base station selects parameters according to the MCCH period and the foregoing The multicast service that the base station needs to send determines the modification period of the MCCH.
  • the method for transmitting the multicast service shown in FIG. 7 further includes: the base station sending a system broadcast message to the UE, where the message carries the MCCH configuration information, so that the UE is configured according to the MCCH.
  • the information reads the MCCH message.
  • FIG. 3 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • the network architecture of the embodiment of the present invention may include a UE and a base station, where the base station determines MCCH transmission time information according to the MCCH configuration information, and sends an MCCH message by using the MCCH-RNTI in the MCCH transmission time information, where the MCCH message is sent.
  • the UE determines the MCCH transmission time information according to the MCCH configuration information, and uses the MCCH-RNTI to read the MCCH message in the MCCH transmission time information, where the MCCH message includes the configuration of the multicast service.
  • Information and then the UE reads the multicast service according to the configuration information of the multicast service.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be transmitted in any one subframe, and is not limited to being transmitted in the MBSFN subframe, thereby
  • the other non-MBSFN subframes may also be used to transmit the MCCH. Therefore, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the MBSFN. The waste of sub-frames.
  • FIG. 4 is a flowchart of a method for transmitting and receiving multicast services according to an embodiment of the present invention.
  • the method for transmitting and receiving multicast services provided by an embodiment of the present invention may include steps S401 to S408:
  • the base station determines MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the base station determines MCCH transmission time information according to the sending period information of the MCCH.
  • the S403 base station sends, by using the MCCH-RNTI, the MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of the multicast service.
  • the base station sends a multicast service to the UE according to the configuration information of the multicast service.
  • the UE determines MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the UE determines MCCH transmission time information according to the sending period information of the MCCH.
  • the UE uses the MCCH-RNTI to read an MCCH message in the MCCH sending time information, where the MCCH message includes configuration information of a multicast service.
  • the UE reads the multicast service sent by the base station to the UE according to the configuration information of the multicast service.
  • the configuration information of the foregoing step S404 may be sent by the base station to the UE after the step S401, or may be predefined by the UE and the base station (for example, the configuration information of the MCCH agreed by the UE and the base station through mutual agreement) ), may also be one of the configuration information of the above step S404
  • the partial configuration information is sent by the base station to the UE after the foregoing step S401, and a part of the configuration information is predefined by the UE and the base station.
  • the UE/base station determines, according to the MCCH repetition period and the offset parameter of the MCCH, the specific subframe position corresponding to the time for transmitting the MCCH may be The UE/base station determines the subframe position corresponding to the MCCH transmission time information according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the MCCH.
  • the UE/base station determines a subframe position corresponding to the time for transmitting the MCCH according to the MCCH repetition period and the offset parameter of the MCCH.
  • the UE/base station may determine, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a subframe position set corresponding to the time for transmitting the MCCH.
  • the UE/base station determines, according to the MCCH repetition period and the offset parameter of the MCCH, the specific implementation of the subframe position corresponding to the time for transmitting the MCCH.
  • the method may be: the UE/the base station determines the frame of the MCCH according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH; the UE/base station determines the MCCH transmission time information according to the frame of the MCCH and the MCCH subframe set configuration information. A corresponding set of subframe positions.
  • the MCCH subframe set configuration information includes an MCCH subframe sequence; or the MCCH subframe set configuration information includes an MCCH subframe start location; or the MCCH subframe set configuration information includes an MCCH subframe start location and a transmission duration. Time information.
  • the foregoing MCCH configuration information may be sent by the base station to the UE by using the MCCH configuration signaling, or may be predefined, and the foregoing is not limited.
  • the MCCH configuration signaling may be a system broadcast.
  • the message is either UE-specific signaling.
  • the MCCH subframe set configuration information is determined by the base station according to the MCCH subframe information to be sent.
  • the MCCH subframe information to be sent includes the MCCH subframe position to be transmitted, the MCCH subframe set configuration information includes an MCCH subframe sequence, and the MCCH subframe sequence is determined by the base station according to the MCCH subframe position to be sent; or, The sent MCCH subframe information includes the number of MCCH subframes to be sent. If the MCCH subframe to be transmitted includes one subframe, the MCCH subframe set configuration information includes the MCCH subframe start position, and if the MCCH subframe to be transmitted includes multiple The subframes, the M CCH subframe set configuration information includes an MCCH subframe start position and transmission duration information.
  • MCCH frame where SFNs is the system frame number and R is the MCCH repetition week Period, S is the offset parameter of the MCCH.
  • the system frame corresponding to the SFN satisfying the formula is a system frame for transmitting the MCCH.
  • the foregoing MCCH subframe sequence is a bitmap sequence or a sequence of subframe sets.
  • the specific implementation manner of the subframe position set corresponding to the MCCH transmission time information is determined by the UE according to the frame sent by the MCCH, the value of each bit of the bitmap sequence, and the corresponding subframe number of each bitmap sequence: the above bitmap sequence
  • Each bit corresponds to one subframe, and the value of each bit of the above bitmap sequence identifies whether the corresponding subframe transmits the MCCH.
  • the bitmap sequence includes 10 bits, and the first to the tenth bits respectively correspond to the subframes 0 to 9.
  • the bitmap sequence is 001100000, indicating that 2, 3 subframes send MCCH, and the remaining subframes do not send MCCH.
  • the subframe set sequence is a set of subframes. For example, if the subframe set sequence includes subframes 2, 3, and 4, it indicates that the 2, 3, and 4 subframes transmit the MCCH, and the remaining subframes do not send the MCCH.
  • the foregoing MCCH subframe start position is used to indicate a start subframe for transmitting the MCCH, and the foregoing transmission duration information indicates a total number of subframes required for transmitting the MCCH; or, the other transmits the MCCH except the start subframe. The total number of subframes required.
  • the base station For the base station, if the MCCH can be transmitted in one subframe, the base station configures the start subframe transmitted by the MCCH in the MCCH subframe set configuration information, and does not configure the transmission duration information, and starts at the foregoing MCCH transmission.
  • the subframe transmits the MCCH; if the MCCH cannot be transmitted in one subframe, configuring a start subframe of the MCCH transmission in the MCCH subframe set configuration information, and configuring the transmission duration information, the base station according to the start
  • the subframe and the transmission duration determine the subframe in which the MCCH is transmitted, and the specific determination method is the same as the UE determination method.
  • the UE determines the total number of MCCH transmission subframes according to the foregoing transmission duration information; and the UE transmits the total number of MCCH subframes and the MCCH according to the foregoing.
  • the transmitted start subframe determines all subframes in which the MCCH is transmitted, or the UE determines all subframes in which the MCCH is transmitted according to the total number of MCCH subframes transmitted, the initial subframe transmitted by the MCCH, and the MBSFN subframe configuration.
  • the UE/base station determines The number of the sent MCCH subframes is one subframe, and the subframe is the starting subframe transmitted by the MCCH.
  • the UE/base station determines that the MCCH transmission subframe is 3, 4, 5 subframes or 3 , 4, 5, 6 subframes.
  • the MCCH subframe set configuration information includes the MCCH subframe start position being the subframe 3 and the duration being 3 subframes, where the MBSFN subframe configuration indication 4, 5 subframes are MBSFN subframes, then the UE / The base station determines that the MCCH transmission subframe is three consecutive non-MBSFN subframes starting from subframe 3: 3, 6, and 7.
  • the MCCH subframe set configuration information includes the MCCH subframe start position is subframe 3 and does not include duration information, the UE/base station determines that the MCCH transmission subframe is 3.
  • the UE/base station may further determine, according to the MCCH subframe set configuration information, the start subframe, and use the start subframe as a subframe of the MCCH modification notification; or, the UE/base station may further use the MCCH subframe.
  • the configuration information is determined to determine all subframes in which the MCCH is transmitted, and any one of the subframes in which the MCCH is transmitted is used as a subframe of the MCCH modification notification.
  • the UE/base station may determine the starting subframe according to the starting subframe position, and use the starting subframe as the subframe of the MCCH modification notification, or The UE/base station may determine the MCCH subframe position set according to the MCCH subframe set configuration information, and the UE/base station may determine, according to the MCCH subframe position set, all subframes that send the MCCH, and send any one of all subframes of the MCCH. As a subframe of the MCCH modification notification.
  • the user equipment UE determines the configuration information of the MCCH, where the configuration information includes the transmission period information of the MCCH-RNTI and the MCCH, and the UE determines the MCCH transmission according to the sending period information of the MCCH.
  • Time information the UE uses the MCCH-RNTI to read an MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of a multicast service; and the UE reads according to the configuration information of the multicast service. Multicast business.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be transmitted in any one subframe, not only in the MBSFN subframe, and thus in other non-MBSFN sub-frames.
  • the frame may also be used to transmit the MCCH. Therefore, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the waste of the MBSFN subframe.
  • the base station if the base station detects the MCCH transmission change, the base station sends an MCCH change notification, and retransmits the MCCH message according to the configuration information of the MCCH.
  • the UE When determining that the MCCH changes, the UE re-reads the MCCH message according to the configuration information of the MCCH.
  • the specific implementation manner in which the UE determines the MCCH transmission change is:
  • the UE determines an MCCH modification period of the MCCH, and the UE reads the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period to obtain an MCCH change flag in the PDCCH or the EPDCCH, where the change identifier includes any one of the following change identifiers. a combination of a change identifier, an NDI, a process number, and an NDI and a process number in the PDCCH or EPDCCH change flag field; the UE determines whether the MCCH is changed according to the MCCH change flag; and if the MCCH change flag and the previous modification period are changed If the flags are different, the UE determines that the MCCH is changed. Alternatively, if the MCCH change flag is the same as the first preset value, the UE determines that the MCCH is changed.
  • the UE determines that the MCCH is changed; for example, if the change identifier is the process number HARQ, The process ID of the UE is 1 and the first preset value is 1 to 7. The UE determines that the MCCH is changed.
  • the change identifier is a change identifier in the PDCCH or EPDCCH change flag field.
  • the change identifier of the PDCCH or EPDCCH change flag field is 1, and the change identifier of the PDCCH or EPDCCH change flag field of the last modification period is 0, the UE determines that the MCCH is changed; for example, if the change identifier is NDI And the process number HARQ is combined as the MCCH change identifier. If the value of the combination of the NDI and the process number HARQ acquired by the UE is 1 and the first preset value is 1 to 15, the UE determines that the MCCH is changed.
  • the UE Determining, by the UE, the MCCH modification period of the MCCH and the M-RNTI corresponding to the MCCH modification period; the UE reading the modification notification field included in the PDCCH corresponding to the M-RNTI in the non-MBSFN subframe;
  • the bit value corresponding to the MCCH is the same as the second preset value, and the UE determines that the MCCH is changed.
  • the modification notification field is an 8-bit modification notification field, where each bit corresponds to one MCCH. If the bit modification notification field has a bit value corresponding to the MCCH, the second preset value is 1. Then, the UE determines that the MCCH is changed.
  • the specific implementation manner of the UE determining the MCCH modification period of the MCCH is as follows:
  • the UE determines that the MCCH modification period is the MCCH modification period. If the MCCH transmission period information includes a plurality of MCCH modification periods, and each MCCH modification period has a period selection parameter corresponding to the MCCH modification period, the UE determines the foregoing according to the MCCH period selection parameter and the multicast service that the UE needs to read.
  • the MCCH modification period for example, the MCCH modification period has two, one MCCH modification period corresponds to the multicast service type being low delay, and one MCCH modification period corresponds to the multicast service type being non-low delay, if the UE needs to read The service is a low-latency service, and the UE determines that the modification period corresponding to the low delay is the MCCH modification period. If the MCCH configuration information includes multiple MCCHs, each MCCH has multiple MCCH modification periods, and each MCCH has an MCCH selection parameter corresponding to the MCCH, and the UE determines according to the MCCH selection parameter and the multicast service that the UE needs to read.
  • the MCCH 2 has a non-low latency for the multicast service type. If the service to be read by the UE is a low-latency service, the MCCH read by the UE is MCCH 1 , and the MCCH modification period of the MCCH 1 is two, one MCCH.
  • the modification period corresponds to the low-latency service type of the multicast service
  • the MCCH modification period corresponds to the non-low-latency type of the multicast service type. If the service to be read by the UE is a low-latency service, the UE determines the modification period corresponding to the low delay. Modify the period for the MCCH.
  • the UE determines that the MCCH is changed, the UE re-reads the MCCH message according to the MCCH configuration information, and the UE re-reads the current MCCH modification period that determines the MCCH change according to the MCCH configuration information.
  • the specific implementation manners for the base station to send the MCCH change notification are:
  • the base station determines an MCCH modification period of the MCCH, and sends a change identifier in the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period, where the change identifier includes an NDI and/or a process ID, where the change identifier is different from A change identifier of the modification period, or the change identifier of the change identifier as the first preset value.
  • the change identifier is the same as the change identifier determined by the UE, and is not described here.
  • the base station determines the MCCH modification period of the MCCH and the M-RNTI corresponding to the MCCH modification period; and sends a bit value in the modification notification field corresponding to the MCCH, where the bit value is the same as the second preset value, and the MCCH corresponding modification
  • the notification field is a non-MBSFN subframe.
  • the base station determines that the MCCH modification period of the MCCH is the same as the specific implementation manner of the MCCH modification period of the MCCH, and the specific implementation process may refer to the specific implementation process of determining the MCCH modification period of the MCCH by using the UE. One by one.
  • the base station if the base station determines that the MCCH is changed, the base station retransmits the MCCH message according to the MCCH configuration information, and the base station resends the MCCH according to the MCCH configuration information to determine the current MCCH modification period in which the MCCH is changed.
  • the modification cycle begins to send a new MCCH.
  • FIG. 9 is a schematic structural diagram of a user equipment UE according to an embodiment of the present disclosure, where the UE includes:
  • the first determining unit 901 is configured to determine MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the foregoing MCCH configuration information includes predefined configuration information, and the base station broadcasts through the system. At least one of the configuration information sent by the message to the UE.
  • the second determining unit 902 is configured to determine MCCH transmission time information according to the transmission period information of the MCCH.
  • the sending period information of the MCCH includes an MCCH repetition period and an offset parameter of the sending MCCH
  • the second determining unit 902 is specifically configured to: determine, according to the MCCH repetition period and the offset parameter of the sending MCCH, a time period for transmitting the MCCH. The corresponding subframe position.
  • the second determining unit 902 is specifically configured to: determine to send according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the sending MCCH, if there is only one subframe for transmitting the MCCH in each MCCH repetition period.
  • the second determining unit 902 is specifically configured to: determine to send the MCCH according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, if there are multiple candidate subframes for transmitting the MCCH in each MCCH repetition period.
  • the second determining unit 902 is specifically configured to: determine, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, a frame that is sent by the MCCH; and configure according to the frame and the MCCH subframe set sent by the MCCH. And determining a set of subframe positions corresponding to the MCCH transmission time information.
  • the MCCH subframe set configuration information is carried by the base station to the UE, and the MCCH configuration signaling is a system broadcast message or a dedicated signaling of the UE.
  • the MCCH subframe set configuration information includes an MCCH subframe sequence; or the MCCH subframe set configuration information includes an MCCH subframe start location; or the MCCH subframe set configuration information includes the MCCH subframe. Start position and send duration information.
  • the MCCH subframe sequence is a bitmap sequence
  • the second determining unit 902 is specifically configured to: according to the frame sent by the MCCH, the value of each bit of the bitmap sequence, and the bitmap sequence.
  • a corresponding subframe number determines a subframe position set corresponding to the MCCH transmission time information.
  • the MCCH subframe set configuration information includes the MCCH subframe start position, and the subframe location set corresponding to the MCCH transmission time information includes one subframe, and the subframe is the MCCH subframe start position. The corresponding subframe.
  • the MCCH subframe set configuration information includes the MCCH subframe start location and the sending duration information, and the second determining unit 902 is specifically configured to:
  • the UE shown in FIG. 9 further includes:
  • a third determining unit configured to determine, according to the MCCH subframe set configuration information, a starting subframe, and use the starting subframe as a subframe of an MCCH modification notification;
  • the fourth determining unit configured to determine, according to the MCCH subframe set configuration information, all subframes that send the MCCH, and use any one of the subframes of the sent MCCH as the subframe of the MCCH modification notification.
  • the first reading unit 903 is configured to read, by using the MCCH-RNTI, the MCCH message in the MCCH sending time information, where the MCCH message includes configuration information of a multicast service.
  • the first reading unit 903 is specifically configured to: read, by using the MCCH-RNTI, a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH in a subframe position corresponding to a time when the MCCH is sent; Or the resource location of the MCCH message specified in the EPDCCH reads the MCCH message.
  • the second reading unit 904 is configured to read the multicast service according to the configuration information of the multicast service.
  • the configuration information of the foregoing multicast service includes a temporary multicast group identifier and a G-RNTI for scheduling the multicast service, and the second reading unit 904 is specifically configured to: read and perform the foregoing according to the G-RNTI of the scheduled multicast service.
  • the temporary multicast group identifies the corresponding multicast service.
  • the second reading unit 904 is specifically configured to: read PDCCH scheduling information according to the G-RNTI of the multicast service, and determine a frequency resource corresponding to the multicast service corresponding to the temporary multicast group identifier according to the PDCCH scheduling information. And the modulation mode, and reading the multicast service according to the above frequency resource and the above modulation mode.
  • the configuration information of the multicast service includes the temporary multicast group identifier and the scheduling information of the multicast service, and the second reading unit 904 is specifically configured to: read the temporary multicast group according to the scheduling information of the multicast service. Identify the corresponding multicast service.
  • the UE shown in FIG. 9 further includes: a fifth determining unit, configured to determine whether the MCCH is changed; and a third reading unit, And if it is determined that the MCCH is changed, the MCCH message is re-read according to the configuration information of the MCCH.
  • the fifth determining unit is specifically configured to: determine an MCCH modification period of the MCCH, and read a PDCCH or an EPDCCH according to the MCCH-RNTI in the MCCH modification period to obtain an MCCH change flag in the PDCCH or EPDCCH.
  • the change identifier includes any one of the following change identifiers: a change identifier in the PDCCH or EPDCCH change flag field, an NDI, a process number, and a combination of an NDI and a process number; if the MCCH change flag is changed with a previous modification period If the flags are different, it is determined that the MCCH is changed; or, if the MCCH change flag is the same as the first preset value, the MCCH is changed.
  • the fifth determining unit is further configured to: determine an MCCH modification period of the MCCH and an M-RNTI corresponding to the MCCH modification period; and include, in a PDCCH corresponding to the M-RNTI in a non-MBSFN subframe read Modifying the notification field; if the bit value corresponding to the MCCH in the modification notification field is the same as the second preset value, the MCCH is changed.
  • the third reading unit is configured to: re-read the MCCH message according to the configuration information of the MCCH in determining a current MCCH modification period in which the MCCH is changed; or determine according to configuration information of the MCCH.
  • the MCCH modification period of the current MCCH modification period in which the MCCH is changed re-reads the MCCH message.
  • the fifth determining unit is further configured to: if the MCCH transmission period information includes only one MCCH modification period, determine that the MCCH modification period is the MCCH modification period; or, if the MCCH transmission period
  • the information includes a plurality of MCCH modification periods, and each MCCH modification period has a period selection parameter corresponding to the MCCH modification period, and the modification period of the MCCH is determined according to the MCCH period selection parameter and the multicast service that the UE needs to read; or If the MCCH configuration information includes multiple MCCHs, each MCCH has multiple MCCH modification periods, and each MCCH has an MCCH selection parameter corresponding to the MCCH, according to the MCCH selection parameter and the multicast that the UE needs to read.
  • the service determines the MCCH to be read; determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the UE needs to read.
  • the first determining unit 901 determines the configuration information of the MCCH, where the configuration information includes the transmission period information of the MCCH-RNTI and the MCCH, and the second determining unit 902 determines the transmission period information according to the MCCH.
  • the MCCH sends time information; the first reading unit 903 reads the MCCH message in the MCCH transmission time information by using the MCCH-RNTI, where the MCCH message includes configuration information of the multicast service; the second reading unit 904 is configured according to The configuration information of the multicast service reads the multicast service.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be transmitted in any one subframe, not only in the MBSFN subframe, and thus in other non-MBSFN sub-frames.
  • the frame may also be used to transmit the MCCH. Therefore, the MCCHs are not necessarily all transmitted in the MBSFN subframe, so that some MBSFN subframes may not be used to transmit the UE-related MBSFN service data without transmitting the MCCH, thereby reducing the waste of the MBSFN subframe.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure, where the base station includes:
  • the first determining unit 1001 is configured to determine MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH.
  • the second determining unit 1002 is configured to determine MCCH transmission time information according to the transmission period information of the MCCH.
  • the sending period information of the MCCH includes an MCCH repetition period and an offset parameter of the sending MCCH
  • the second determining unit 1002 is specifically configured to: determine, according to the MCCH repetition period and the offset parameter of the sending MCCH, a time period for transmitting the MCCH. The corresponding subframe position.
  • the second determining unit 1002 is specifically configured to: determine to send according to the system frame number, the subframe number, the MCCH repetition period, and the offset parameter of the sending MCCH, if there is only one subframe for transmitting the MCCH in each MCCH repetition period.
  • the second determining unit 1002 is configured to determine, according to the system frame number, the MCCH repetition period, and the offset parameter of the MCCH, that the MCCH is sent, if the MCCH candidate subframe is sent in the MCCH repetition period.
  • the second determining unit 1002 is specifically configured to:
  • the frame sent by the MCCH is determined according to the frame sent by the MCCH and the MCCH subframe set configuration information, and the subframe position set corresponding to the MCCH transmission time information is determined.
  • the MCCH subframe set configuration information is determined by the base station according to the MCCH subframe that needs to be sent.
  • the subframe set configuration information includes an MCCH subframe sequence; if the subframe to which the MCCH needs to be sent includes one subframe, The subframe set configuration information includes an MCCH subframe start position; if the subframe to which the MCCH needs to be sent includes multiple subframes, the subframe set configuration information includes an MCCH subframe start position and transmission duration information.
  • the sequence of the MCCH subframe is a sequence of bitmaps, and the second determining unit 1002 is specifically configured to:
  • the MCCH subframe set configuration information includes the MCCH subframe start position, and the subframe location set corresponding to the MCCH transmission time information includes one subframe, and the subframe is the MCCH subframe start position. The corresponding subframe.
  • the MCCH subframe set configuration information includes the MCCH subframe start location and the sending duration information, and the second determining unit 1002 is specifically configured to:
  • the UE sends the MCCH according to the total number of the sent MCCH subframes.
  • the starting subframe, and the MBSFN subframe configuration determines that all subframes of the MCCH are transmitted.
  • the base station shown in FIG. 10 further includes:
  • a third determining unit configured to determine, according to the MCCH subframe set configuration information, a starting subframe, and use the starting subframe as a subframe of an MCCH modification notification;
  • the fourth determining unit configured to determine, according to the MCCH subframe set configuration information, all subframes that send the MCCH, and use any one of the subframes of the sent MCCH as the subframe of the MCCH modification notification.
  • the first sending unit 1003 is configured to send, by using the MCCH-RNTI, the MCCH message in the MCCH sending time information, where the MCCH message includes configuration information of a multicast service.
  • the first sending unit 1003 is specifically configured to: send, by using the MCCH-RNTI, a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH in a subframe position corresponding to a time when the MCCH is sent; in the PDCCH or the EPDCCH.
  • the resource location of the specified MCCH message sends the above MCCH message.
  • the second sending unit 1004 is configured to send the foregoing multicast service according to the configuration information of the multicast service.
  • the configuration information of the foregoing multicast service includes a temporary multicast group identifier and a G-RNTI for scheduling the multicast service, and the second sending unit 1004 is specifically configured to: send, according to the foregoing, a G-RNTI for scheduling the multicast service,
  • the temporary multicast group identifies the corresponding multicast service.
  • the second sending unit 1004 is specifically configured to: determine a frequency resource and a modulation mode of the multicast service corresponding to the temporary multicast group identifier, and send PDCCH scheduling information to the UE according to the G-RNTI of the multicast service, where the PDCCH is used.
  • the scheduling information carries the frequency resource and the modulation mode, and transmits the multicast service according to the frequency resource and the modulation mode.
  • the configuration information of the multicast service includes the temporary multicast group identifier and the scheduling information of the multicast service, and the second sending unit 1004 is specifically configured to: send, according to the scheduling information of the multicast service, the identifier corresponding to the temporary multicast group identifier. Multicast business.
  • the base station shown in FIG. 10 further includes: a third sending unit, configured to send the MCCH change notification if the MCCH is determined to be changed; and the fourth sending unit And for resending the MCCH message according to the configuration information of the MCCH.
  • the third sending unit is specifically configured to: determine an MCCH modification period of the MCCH, send a change identifier in the PDCCH or the EPDCCH according to the MCCH-RNTI in the MCCH modification period, where the change identifier includes the following change identifier Any one of the following: a change identifier, an NDI, a process number, and a combination of an NDI and a process number in a PDCCH or EPDCCH change flag field; wherein the change identifier is a change identifier different from a previous modification period, or the change identifier The change identifier for the first preset value.
  • the third sending unit is specifically configured to: determine an MCCH modification period of the MCCH. And a M-RNTI corresponding to the MCCH modification period; a bit value is sent in a modification notification field corresponding to the MCCH, where the bit value is the same as a second preset value, and the modification notification field corresponding to the MCCH is a non-MBSFN
  • the fourth sending unit is specifically configured to: resend the MCCH message according to the configuration information of the MCCH in determining a current MCCH modification period in which the MCCH is changed; or determine, according to the configuration information of the MCCH, The MCCH modification period of the current MCCH modification period in which the MCCH is changed resends the MCCH message.
  • the third sending unit is specifically configured to: if the MCCH transmission period information includes only one MCCH modification period, determine that the MCCH modification period is the MCCH modification period; or, if the MCCH transmission period information Having a plurality of MCCH modification periods, and each MCCH modification period has a period selection parameter corresponding to the MCCH modification period, and determining a modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the base station needs to send; or
  • the MCCH configuration information includes multiple MCCHs, each MCCH has multiple MCCH modification periods, and each MCCH has an MCCH selection parameter corresponding to the MCCH, and then needs to be determined according to the MCCH selection parameter and the multicast service that the base station needs to send.
  • the transmitted MCCH determines the modification period of the MCCH according to the MCCH period selection parameter and the multicast service that the base station needs to send.
  • the MCCH configuration information includes at least one of predefined configuration information and configuration information sent by the MCE to the base station.
  • the first determining unit 1001 determines the MCCH configuration information, where the MCCH configuration information includes the MCCH-RNTI and the MCCH transmission period information
  • the second determining unit 1002 determines the MCCH transmission according to the MCCH transmission period information.
  • the first sending unit 1003 sends the MCCH message in the MCCH sending time information by using the MCCH-RNTI, where the MCCH message includes configuration information of the multicast service
  • the second sending unit 1004 sends the multicast according to the configuration information of the multicast service. business.
  • the UE identifies the MCCH in one subframe by configuring the MCCH-RNTI, so that the MCCH can be in any one subframe.
  • Medium transmission not limited to transmission in MBSFN subframes, so that other non-MBSFN subframes can also be used to transmit MCCH. Therefore, MCCHs are not necessarily transmitted in MBSFN subframes, so that some MBSFN subframes may not be transmitted.
  • the MCCH is all used to transmit UE-related MBSFN service data, thereby reducing the waste of MBSFN subframes.
  • FIG. 11 is a schematic diagram of a UE according to an embodiment of the present invention.
  • the UE 1100 includes at least one processor 1101, a communication bus 1102, a memory 1103, at least one communication interface 1104, a transmitter 1105, and a receiver 1106.
  • the processor 1101 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication bus 1102 can include a path for communicating information between the components described above.
  • the communication interface 1104 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory 1103 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory 1103 is configured to store application code for executing the solution of the present invention, and is controlled by the processor 1101 to execute.
  • the processor 1101 is configured to execute application code stored in the memory 1103.
  • the code stored in the memory 503 of the UE shown in FIG. 11 can perform the multicast service provided by the present invention.
  • a reading method for example, determining multicast control channel MCCH configuration information, where the MCCH configuration information includes a radio network temporary identifier MCCH-RNTI and an MCCH transmission period information of the multicast control channel, and then determining according to the MCCH transmission period information
  • the MCCH sends the time information, and then uses the MCCH-RNTI to read the MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of the multicast service, and finally reads the location according to the configuration information of the multicast service.
  • Multicast business for example, determining multicast control channel MCCH configuration information, where the MCCH configuration information includes a radio network temporary identifier MCCH-RNTI and an MCCH transmission period information of the multicast control channel, and then determining according to the MCCH transmission period information
  • the MCCH sends the time information, and then
  • the UE 1100 may further include a transmitter 1105 and a receiver 1106.
  • Transmitter 1105 is in communication with processor 1101 and can display information in a variety of ways.
  • the receiver 1106 is in communication with the processor 1101 and can accept signaling sent by the application server or service layer device in a variety of ways.
  • the UE 1100 described above may be a general purpose computer device or a dedicated computer device.
  • the computer device 1100 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet, a wireless terminal device, a communication device, an embedded device, or have the FIG. A device of similar structure.
  • PDA personal digital assistant
  • the embodiment of the present invention does not limit the type of the UE 1100.
  • FIG. 12 is a schematic diagram of a base station according to an embodiment of the present invention.
  • the base station 1200 includes at least one processor 1201, a communication bus 1202, a memory 1203, at least one communication interface 1204, a transmitter 1205, and a receiver 1206.
  • the processor 1201 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication bus 1202 can include a path for communicating information between the components described above.
  • the communication interface 1204 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory 1203 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • Dynamic storage device can also Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs) , a disc, a digital versatile disc, a Blu-ray disc, etc.), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and accessible by a computer, But it is not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory 1203 is configured to store application code for executing the solution of the present invention, and is controlled by the processor 1201 for execution.
  • the processor 1201 is configured to execute application code stored in the memory 1203.
  • the code stored in the memory 1203 of the UE shown in FIG. 12 may perform the multicast service sending method provided by the present invention, for example, determining MCCH configuration information, where the MCCH configuration information includes transmission period information of the MCCH-RNTI and the MCCH, and then according to the The MCCH transmission period information determines the MCCH transmission time information, and then uses the MCCH-RNTI to send the MCCH message in the MCCH transmission time information, where the MCCH message includes configuration information of the multicast service, and finally according to the multicast service.
  • the configuration information is sent by the multicast service.
  • the base station 1200 may further include a transmitter 1205 and a receiver 1206.
  • Transmitter 1205 is in communication with processor 1201 and can display information in a variety of ways.
  • the receiver 1206 communicates with the processor 1201 and can accept signaling sent by the application server or service layer device in a variety of ways.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the multicast service reading methods described in the foregoing method embodiments.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the multicast service sending methods described in the foregoing method embodiments.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division.
  • there may be another division manner for example, multiple modules or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical or otherwise.
  • the modules described as separate components may or may not be physically separated.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a memory. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing memory includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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Abstract

本发明公开了一种多播业务读取方法，该方法还包括：用户设备UE确定多播控制信道MCCH配置信息，所述MCCH配置信息包括多播控制信道标识MCCH-RNTI和MCCH的发送周期信息；所述UE根据所述MCCH的发送周期信息确定MCCH发送时间信息；所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；所述UE根据所述多播业务的配置信息读取多播业务。本发明实施例还提供了一种多播业务发送方法及相关设备。采用本发明实施例有利于降低MBSFN子帧的浪费。

Description

一种多播业务读取、发送方法及相关设备
本申请要求于2015年8月14日递交国际专利局、申请号为PCT/CN2015/087114，发明名称为“一种多播业务读取、发送方法及相关设备”的国际专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及移动通信技术领域，尤其涉及一种多播业务读取、发送方法及相关设备。
背景技术
LTE(Long Term Evolution，长期演进)系统中引入了MBMS(Multimedia Broadcast Multicast Service，多媒体广播多播服务)又被称为eMBMS(evolved MBMS，演进的MBMS)机制，通过MCCH(Multimedia Control Channel，多播控制信道)传输MBMS的控制信息，并有BCCH(Broadcast Control Channel，广播控制信道)传输MCCH的MCS(Modulation and Coding Scheme，调制编码格式)信息。
MBMS的相关逻辑信道包括BCCH、MCCH和MTCH(MBMS point-to-multipoint Control Channel，MBMS点到多点控制信道)，其中，BCCH用于网络向UE(User Equipment，用户设备)广播系统信息；MCCH用于网络向UE传输MBMS相关的控制信息，一个MCCH可以对应于一个或多个MTCH，只有能读取MBMS业务的UE才可以使用MCCH，基站会将MCCH的MCS和MCCH的周期信息(MCCH的周期信息包括修改周期(modification period，MP)和重复周期(repetition period，RP))通过系统广播通知UE。MTCH是一个点到多点的下行信道，用于网络向UE传输MBMS业务数据，只有能读取MBMS业务的UE才可以使用MTCH，MTCH的信息是由其对应的MCCH指示的，网络利用BCCH向UE指示MCCH，再利用MCCH向UE指示MTCH，从而达到使UE读取在MTCH上承载的MBMS业务的目的。
目前在MBMS系统中，MCCH消息只能通过MBSFN(Multimedia Broadcast Multicast Service Single Frequency Network，多媒体广播多播服务单 频网络)子帧发送，而MBSFN子帧是专用子帧，只能发送一个数据块，UE在对应时间点读取MBSFN子帧方可获取MCCH消息。由于MBSFN子帧只能传输一个数据块，而一个数据块可以用于传输MCCH消息也可以传输除MCCH消息外的其他数据。但如果MCCH消息不能占满MBSFN子帧全部资源，MBSFN子帧上也不能发送其他数据了，从而造成资源浪费。
发明内容
本发明实施例提供一种多播业务读取、发送方法及相关设备，降低了MBSFN子帧的浪费。
第一方面，本发明实施例提供一种多播业务读取方法，包括：
用户设备UE确定多播控制信道MCCH配置信息，所述MCCH配置信息包括多播控制信道的无线网络临时标识MCCH-RNTI和MCCH的发送周期信息；
所述UE根据所述MCCH的发送周期信息确定MCCH发送时间信息；
所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；
所述UE根据所述多播业务的配置信息读取所述多播业务。
结合第一方面，在第一方面的第一种可能的实现方式中，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数；
所述UE根据所述MCCH的发送周期信息确定MCCH发送时间信息，包括：
所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，若每个MCCH重复周期内，只有一个发送MCCH的子帧，所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述UE根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，若每个MCCH重复周期内，有多个发送MCCH的候选子帧，所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述UE根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置集合。
结合第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述UE根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述MCCH子帧集合配置信息是所述基站向所述UE发送的MCCH配置信令携带的，所述MCCH配置信令为系统广播消息或者UE的专用信令。
结合第一方面的第四种或第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
结合第一方面的第六种可能的实现方式，在第一方面的第七种可能的实现方式中，所述MCCH子帧序列为位图序列，所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
所述UE根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
结合第一方面的第六种可能的实现方式，在第一方面的第八种可能的实现方式中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述 MCCH子帧起始位置对应的子帧。
结合第一方面的第六种可能的实现方式，在第一方面的第九种可能的实现方式中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
所述UE根据所述发送持续时间信息，确定发送MCCH子帧的总数量；
所述UE根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
结合第一方面的第四种至第九种任一种可能的实现方式，在第一方面的第十种可能的实现方式中，所述方法还包括：
所述UE根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
或者，
所述UE根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
结合第一方面的第一种至第十种任一种可能的实现方式，在第一方面的第十一种可能的实现方式中，所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，包括：
所述UE使用所述MCCH-RNTI在发送所述MCCH的时间所对应的子帧位置读取物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH；
所述UE在所述PDCCH或EPDCCH中指定的MCCH消息的资源位置读取所述MCCH消息。
结合第一方面、第一方面的第一种至第十一种任一种可能的实现方式，在第一方面的第十二种可能的实现方式中，所述多播业务的配置信息包括临时多播组标识和调度多播业务的G-RNTI，所述UE根据所述多播业务的配置信息读取多播业务，包括：
所述UE根据所述调度多播业务的G-RNTI读取与所述临时多播组标识对应的多播业务。
结合第一方面的第十二种可能的实现方式，在第一方面的第十三种可能的实现方式中，所述UE根据所述调度所述多播业务的G-RNTI读取与所述临时多播组标识对应的多播业务，包括：
所述UE根据所述多播业务的G-RNTI读取PDCCH调度信息；
所述UE根据所述PDCCH调度信息确定与所述临时多播组标识对应的多播业务对应的频率资源和调制方式，并根据所述频率资源和所述调制方式读取所述多播业务。
结合第一方面、第一方面的第一种至第十一种任一种可能的实现方式，在第一方面的第十四种可能的实现方式中，所述多播业务的配置信息包括临时多播组标识和多播业务的调度信息，且所述多播业务调度信息包括读取所述多播多播业务使用的频率资源和调制方式，所述UE根据所述多播业务的配置信息读取多播业务，包括：
所述UE根据所述多播业务的频率资源和调制方式与所述临时多播组标识对应的多播业务。
结合第一方面、第一方面的第一种至第十四种任一种可能的实现方式，在第一方面的第十五种可能的实现方式中，在本发明实施例第一方面的第八种可能的实现方式中，所述UE确定MCCH配置信息之后，所述方法还包括：
所述所述UE确定所述MCCH是否发生变更；
若所述UE确定所述MCCH发生变更，所述UE根据所述MCCH的配置信息重新读取所述MCCH消息。
结合第一方面的第十五种可能的实现方式，在第一方面的第十六种可能的实现方式中，所述UE确定所述MCCH是否发生变更，包括：
所述UE确定所述MCCH的MCCH修改周期；
所述UE在所述MCCH修改周期根据所述MCCH-RNTI读取PDCCH或EPDCCH，以获取所述PDCCH或EPDCCH中的MCCH变更标志，所述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；
若所述MCCH变更标志与上一修改周期的变更标志不相同，则所述UE确定所述MCCH发生变更；
或者，
若所述MCCH变更标志与第一预设值相同，则所述UE确定所述MCCH发生变更。
结合第一方面的第十五种可能的实现方式，在第一方面的第十七种可能的实现方式中，所述UE确定所述MCCH是否发生变更，包括：
所述UE确定所述MCCH的MCCH修改周期和与所述MCCH修改周期对应的M-RNTI；
所述UE在非MBSFN子帧读取所述M-RNTI对应的PDCCH中包含的修改通知域；
若所述修改通知域中与所述MCCH对应的比特值与第二预设值相同，则所述UE确定所述MCCH发生变更。
结合第一方面的第十五种至第十七种任一种可能的实现方式，在第一方面的第十八种可能的实现方式中，所述UE根据所述MCCH的配置信息重新读取所述MCCH消息，包括：
所述UE根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新读取所述MCCH消息；
或者，
所述UE根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取所述MCCH消息。
结合第一方面的第十六种或第十七种可能的实现方式，在第一方面的第十九种可能的实现方式中，所述UE确定所述MCCH的MCCH修改周期，包括：
若所述MCCH的发送周期信息只包含一个MCCH修改周期，所述UE确定所述MCCH修改周期为所述MCCH的修改周期；
或者，
若所述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，所述UE根据MCCH周期选择参数和所述UE需要读取的多播业务确定所述MCCH的修改 周期；
或者，
若所述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则所述UE根据MCCH选择参数和所述UE需要读取的多播业务确定需要读取的MCCH；所述UE根据MCCH周期选择参数和所述UE需要读取的多播业务确定所述MCCH的修改周期。
结合第一方面、第一方面的第一种至第十九种任一种可能的实现方式，在第一方面的第二十种可能的实现方式中，所述MCCH配置信息包括预定义的配置信息、基站通过系统广播消息向UE发送的配置信息中的至少一种。
第二方面，本发明实施例提供一种多播业务发送方法，包括：
基站确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；
所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息；
所述基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息；
所述基站根据所述多播业务的配置信息发送所述多播业务。
结合第二方面，在第二方面的第一种可能的实现方式中，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数；
所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息，包括：
所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，若每个MCCH重复周期内，只有一个发送MCCH的子帧，所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述基站根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
结合第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，若每个MCCH重复周期内，有多个有多个发送MCCH的候选子帧，所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述基站根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置集合。
结合第二方面的第一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
所述基站根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；
所述基站根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
结合第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述M CCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
结合第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述MCCH子帧集合配置信息是所述基站根据待发送的MCCH子帧信息确定的；
其中，所述待发送的MCCH子帧信息包括待发送MCCH子帧位置，所述MCCH子帧集合配置信息包括MCCH子帧序列，所述MCCH子帧序列是所述基站根据所述待发送MCCH子帧位置确定的；或者，所述待发送的MCCH子帧信息包括待发送MCCH子帧的数量，若所述待发送MCCH子帧包括一个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置，若待发送MCCH子帧包括多个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
结合第二方面的第六种可能的实现方式，在第二方面的第七种可能的实现方式中，所述MCCH子帧序列为位图序列，所述基站根据所述MCCH发送的 帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
所述基站根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
结合第二方面的第六种可能的实现方式，在第二方面的第八种可能的实现方式中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧。
结合第二方面的第六种可能的实现方式，在第二方面的第九种可能的实现方式中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述基站根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
所述基站根据所述发送持续时间信息，确定发送MCCH子帧的总数量；
所述基站根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
结合第二方面的第四种至第九种任一种可能的实现方式，在第二方面的第十种可能的实现方式中，所述方法还包括：
所述基站根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
或者，
所述基站根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
结合第二方面的第一种至第十种任一种可能的实现方式，在第二方面的第十一种可能的实现方式中，所述基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，包括：
所述基站使用所述MCCH-RNTI在发送所述MCCH的时间所对应的子帧位置发送物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH；
所述基站在所述PDCCH或EPDCCH中指定的MCCH消息的资源位置发送所述MCCH消息。
结合第二方面、第二方面的第一种至第十一种任一种可能的实现方式，在第二方面的第十二种可能的实现方式中，所述多播业务的配置信息包括临时多播组标识和调度所述多播业务的G-RNTI，所述基站根据所述多播业务的配置信息发送多播业务，包括：
所述基站根据所述调度所述多播业务的G-RNTI发送与所述临时多播组标识对应的多播业务。
结合第二方面的第十二种可能的实现方式，在第二方面的第十三种可能的实现方式中，所述基站根据所述调度所述多播业务的G-RNTI发送与所述临时多播组标识对应的多播业务，包括：
所述基站确定与所述临时多播组标识对应的多播业务的频率资源和调制方式；
所述基站根据所述多播业务的G-RNTI向UE发送PDCCH调度信息，所述PDCCH调度信息携带有所述频率资源和所述调制方式，并根据所述频率资源和所述调制方式发送所述多播业务。
结合第二方面、第二方面的第一种至第十一种任一种可能的实现方式，在第二方面的第十四种可能的实现方式中，所述多播业务的配置信息包括临时多播组标识和多播业务的调度信息，且所述多播业务调度信息包括发送所述多播多播业务使用的频率资源和调制方式，所述基站根据所述多播业务的配置信息发送多播业务，包括：
所述基站根据所述多播多播业务使用的频率资源和调制方式发送与所述临时多播组标识对应的多播业务。
结合第二方面、第二方面的第一种至第十四种任一种可能的实现方式，在第二方面的第十五种可能的实现方式中，所述基站确定MCCH配置信息之后，所述方法还包括：
若所述基站确定所述MCCH发生变更，所述基站发送所述MCCH变更通 知；
所述基站根据所述MCCH的配置信息重新发送所述MCCH消息。
结合第二方面的第十五种可能的实现方式，在第二方面的第十六种可能的实现方式中，所述基站发送所述MCCH变更通知，包括：
所述基站确定所述MCCH的MCCH修改周期；
所述基站在所述MCCH修改周期根据所述MCCH-RNTI，在PDCCH或EPDCCH中发送变更标识，所述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；
其中，所述变更标识为不同于上一修改周期的变更标识，或者所述变更标识为第一预设值的变更标识。
结合第二方面的第十五种可能的实现方式，在第二方面的第十七种可能的实现方式中，所述基站发送所述MCCH变更通知，包括：
所述基站确定所述MCCH的MCCH修改周期和与所述MCCH修改周期对应的M-RNTI；
所述基站在所述MCCH对应的修改通知域中发送比特值，所述比特值与第二预设值相同，所述MCCH对应的修改通知域为非MBSFN子帧所述M-RNTI对应的PDCCH中包含的修改通知域中与所述MCCH对应的修改通知域。
结合第二方面的第十五种至第十七种任一种可能的实现方式，在第二方面的第十八种可能的实现方式中，所述基站根据所述MCCH的配置信息重新发送所述MCCH消息，包括：
所述基站根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新发送所述MCCH消息；
或者，
所述基站根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新发送所述MCCH消息。
结合第二方面的第十六种或第十七种任一种可能的实现方式，在第二方面的第十九种可能的实现方式中，所述基站确定所述MCCH的MCCH修改周期， 包括：
若所述MCCH的发送周期信息只包含一个MCCH修改周期，所述基站确定所述MCCH修改周期为所述MCCH的修改周期；
或者，
若所述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，所述基站根据MCCH周期选择参数和所述基站需要发送的多播业务确定所述MCCH的修改周期；
或者，
若所述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则所述基站根据MCCH选择参数和所述基站需要发送的多播业务确定需要发送的MCCH；所述基站根据MCCH周期选择参数和所述基站需要发送的多播业务确定所述MCCH的修改周期。
结合第二方面的第一种至第十九种任一种可能的实现方式，在第二方面的第二十种可能的实现方式中，所述MCCH配置信息包括预定义的配置信息、MCE向所述基站发送的配置信息中的至少一种。
第三方面，本发明提供一种用户设备UE，包含用于执行第一方面中的方法步骤的各种模块。
第四方面，本发明提供一种基站，包含用于执行第二方面中的方法步骤的各个模块。
第五方面，提供一种用户设备UE，UE的结构中包括接收器、发送器以及处理器，处理器被配置为支持UE执行上述方法中相应的功能。发送器用于支持UE与移动网络服务器之间的通信。UE还可以包括存储器，存储器用于与处理器耦合，其保存UE必要的程序指令和数据。UE还可以包括通信接口，用于UE与其他设备或通信网络通信。
第六方面，提供一种基站，基站的结构中包括接收器、发送器以及处理器，处理器被配置为支持基站执行上述方法中相应的功能。发送器用于支持基站与移动网络服务器之间的通信。基站还可以包括存储器，存储器用于与处理器耦 合，其保存基站必要的程序指令和数据。基站还可以包括通信接口，用于基站与其他设备或通信网络通信。
第七方面，本发明提供了一种计算机存储介质，用于储存为上述UE所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第八方面，本发明提供了一种计算机存储介质，用于储存为上述基站所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
实施本发明实施例，具有如下有益效果：
本发明实施例中，用户设备UE确定MCCH的配置信息，所述配置信息包括MCCH-RNTI和MCCH的发送周期信息；所述UE根据所述MCCH的发送周期信息确定所述MCCH发送时间信息；所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；所述UE根据所述多播业务的配置信息读取多播业务。本发明实施例中UE通过配置的MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输也能被UE识别出，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH。因此，本发明实施例中MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧由于要传输MCCH消息而MCCH无法全部利用MBSFN子帧的资源，而造成的MBSFN子帧资源的浪费。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的多播业务读取方法的流程图；
图2为本发明实施例提供的多播业务发送方法的流程图；
图3为本发明实施例提供的一种网络构架示意图；
图4为本发明实施例提供的多播业务收发方法的流程图；
图5～图8为本发明实施例提供的MCCH传输机制示意图；
图9为本发明实施例提供的UE的第一实施例的结构示意图；
图10为本发明实施例提供的基站的第一实施例的结构示意图；
图11为本发明实施例提供的UE的第二实施例的结构示意图；
图12为本发明实施例提供的基站的第二实施例的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
以下分别进行详细说明。
本发明的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或模块的过程、方法、系统、产品或设备没有限定于已列出的步骤或模块，而是可选地还包括没有列出的步骤或模块，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或模块。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
请参见图1，图1为本发明实施例提供的多播业务读取方法的第一实施例流程图。其中，如图1所示，本发明的一个实施例提供的多播业务读取方法可以包括步骤S101～S104：
S101、用户设备UE确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
本发明实施例中，上述用户设备UE可以包括手机、平板电脑、个人数字助理(Personal Digital Assistant,PDA)、移动互联网设备(Mobile Internet Device，MID)、智能穿戴设备(如智能手表、智能手环)等各类UE。本发明实施例不作限定。
本发明实施例中，上述MCCH的配置信息可以是预定义的配置信息(如UE和基站通过协议互相约定好的MCCH的配置信息)；或者，上述MCCH的配置信息也可以是UE接收基站发送的系统广播消息，上述广播消息携带有上述MCCH配置信息；或者，上述MCCH的配置信息可以是一部分是预定义的一部分是基站通过系统广播消息发送给UE的(比如MCCH-RNTI和MCCH的发送周期为基站利用系统广播消息发送给UE的，其他的配置信息为预定义的等等)。
本发明实施例中，上述MCCH-RNTI用于UE进行PDCCH(Physical Downlink Control Channel，物理下行控制信道)或EPDCCH(Enhanced Physical Downlink Control Channel，增强的物理下行控制信道)。上述MCCH配置信息至少包含一条MCCH配置信息，若上述MCCH配置信息包含多条MCCH配置信息，每条MCCH的MCCH配置信息中包含的MCCH-RNTI可以是相同的MCCH-RNTI，也可以是每条MCCH各种有不同的MCCH-RNTI。上述MCCH的发送周期信息包括MCCH的修改周期、MCCH重复周期和发送MCCH的偏移参数。一条MCCH可以配置一个修改周期也可以配置多个修改周期，若一条MCCH配置多个修改周期，上述MCCH的发送周期信息还包括每个MCCH修改周期对应的MCCH周期选择参数，以便于UE可以使用MCCH周期选择参数选择MCCH的修改周期。在上述MCCH配置信息包含多条MCCH配置信息时，上述MCCH配置信息还包括MCCH对应的业务类型信息，上述MCCH对应的业务类型信息用于UE根据业务类型信息选择读取多条MCCH中的哪一条MCCH。
本发明实施例中，上述MCCH配置信息至少包含一条MCCH配置信息，UE即可以读取一条MCCH消息，也可以读取多条MCCH消息，比如上述MCCH配置信息只包含一条MCCH配置信息，UE则根据上述MCCH配置信息该条MCCH消息；又如上述MCCH配置信息包含多条MCCH配置信息， UE可以根据MCCH对应的业务类型信息选择多条MCCH中的其中一条MCCH读取，或者，UE可以根据MCCH对应的业务类型信息选择多条MCCH中的多条MCCH读取，同样UE也可以读取上述MCCH配置信息中包含的全部MCCH消息。由于UE读取一条MCCH消息的原理和读取多条MCCH消息的原理相同，因此本发明实施例中，以UE读取一条MCCH消息为例进行详细的说明。
S102、所述UE根据所述MCCH的发送周期信息确定所述MCCH发送时间信息。
本发明实施例中，UE根据MCCH的发送周期信息确定MCCH发送时间信息的具体实施方式可以是：UE根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置，其中，上述发送上述MCCH的时间所对应的子帧位置为发送MCCH的子帧位置。
在一发明实施例中，若每一个MCCH重复周期内，只有一个发送MCCH的子帧，上述UE根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式可以是：UE根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
具体地，UE根据公式{[(SFN*10)+subframe number]modulo(R*10)＝S}，确定发送MCCH的子帧位置，其中，SFN为系统帧号，subframe number为子帧号，R为MCCH重复周期，S为MCCH的偏移参数。当SFN和子帧号满足上述公式时确定为发送MCCH的子帧。
在另一发明实施例中，若每个MCCH重复周期内，有多个发送MCCH的候选子帧上述UE根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式可以是：UE根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送上述MCCH的时间所对应对应的子帧位置集合。
具体地，UE根据公式{(SFNs module(R)＝S}，确定发送MCCH的子帧位置，其中，SFNs为任意系统帧号，R为MCCH重复周期，S为MCCH的偏移参数。当SFN满足上述公式时确定为发送MCCH的帧。上述帧内包含的子 帧确定为发送上述MCCH的时间所对应的子帧位置集合。
S103、所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息。
本发明实施例中，UE使用上述MCCH-RNTI在上述MCCH发送时间信息读取MCCH消息的具体实施方式为：UE使用上述MCCH-RNTI发送所述MCCH的时间所对应的子帧位置读取物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH；UE在上述PDCCH或EPDCCH中指定的MCCH消息的资源位置读取上述MCCH消息。
S104、所述UE根据所述多播业务的配置信息读取多播业务。
在一发明实施例中，若上述多播业务的配置信息包括临时多播组标识和调度多播业务的G-RNTI，UE根据上述多播业务的配置信息读取多播业务的具体实施方式为：UE根据上述调度多播业务的G-RNTI读取与上述临时多播组标识对应的多播业务。
具体地，UE根据上述调度多播业务的G-RNTI读取与上述临时多播组标识对应的多播业务的具体实施方式为：UE根据上述多播业务的G-RNTI读取PDCCH调度信息；UE根据上述PDCCH调度信息确定与上述临时多播组标识对应的多播业务对应的频率资源和调制方式，并根据上述频率资源和调制方式读取上述多播业务。可选的，若上述多播业务的配置信息包括临时多播组标识、调度多播业务的G-RNTI和多播业务的传输模式，UE根据上述多播业务的配置信息读取多播业务的具体实施方式为：UE根据上述调度多播业务的G-RNTI和上述多播业务的传输模式读取与上述临时多播组标识对应的多播业务。
具体地，UE根据上述调度多播业务的G-RNTI读取与上述临时多播组标识对应的多播业务的具体实施方式为：UE根据上述多播业务的G-RNTI读取PDCCH调度信息；UE根据上述PDCCH调度信息确定与上述临时多播组标识对应的多播业务对应的频率资源和调制方式，并根据上述频率资源、调制方式和上述多播业务的传输模式读取上述多播业务。
在另一发明实施例中，上述多播业务的配置信息包括临时多播组标识和多播业务的调度信息，UE根据上述多播业务的配置信息读取多播业务的具体实 施方式为：UE根据上述多播业务的调度信息读取与上述临时多播组标识对应的多播业务。
具体地，UE根据上述多播业务的调度信息读取与上述临时多播组标识对应的多播业务具体实施方式为：UE根据上述多播业务的调度信息确定上述多播业务对应的频率资源、时间资源、调制方式以及编码方式等等，进而读取上述多播业务。
可选的，上述多播业务的配置信息包括临时多播组标识、多播业务的调度信息和多播业务的传输模式，UE根据上述多播业务的配置信息读取多播业务的具体实施方式为：UE根据上述多播业务的调度信息和上述多播业务的传输模式读取与上述临时多播组标识对应的多播业务。
具体地，UE根据上述多播业务的调度信息和上述多播业务的传输模式读取与上述临时多播组标识对应的多播业务具体实施方式为：UE根据上述多播业务的调度信息确定上述多播业务对应的频率资源、时间资源、调制方式以及编码方式等等，进而读取上述多播业务。
可以看出，本发明实施例中，用户设备UE确定MCCH的配置信息，所述配置信息包括MCCH-RNTI和MCCH的发送周期信息；所述UE根据所述MCCH的发送周期信息确定所述MCCH发送时间信息；所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；所述UE根据所述多播业务的配置信息读取多播业务。本发明实施例中UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
可选的，在UE确定MCCH配置信息之后，图1所示的多播业务读取方法还包括：
若上述UE确定上述MCCH发生变更，上述UE根据上述MCCH的配置信息重新读取上述MCCH消息。
其中，上述UE根据上述MCCH的配置信息重新读取上述MCCH消息的具体实施方式为：UE根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期重新读取上述MCCH消息；或者，上述UE根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取上述MCCH消息。
可选的，在UE根据上述MCCH的配置信息重新读取上述MCCH消息之前，图1所示的多播业务读取方法还包括：
UE确定上述MCCH的MCCH修改周期；上述UE在上述MCCH修改周期根据上述MCCH-RNTI读取PDCCH或EPDCCH，以获取上述PDCCH或EPDCCH中的MCCH变更标志，上述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；上述UE根据上述MCCH变更标志确定上述MCCH是否发生变更；若上述MCCH变更标志与上一修改周期的变更标志不相同，则上述UE确定上述MCCH发生变更；或者，若上述MCCH变更标志与第一预设值相同，则上述UE确定上述MCCH发生变更。
可选的，在UE根据上述MCCH的配置信息重新读取上述MCCH消息之前，图1所示的多播业务读取方法还包括：
UE确定上述MCCH的MCCH修改周期和与上述MCCH修改周期对应的M-RNTI；上述UE在非MBSFN子帧读取上述M-RNTI对应的PDCCH中包含的修改通知域；若上述修改通知域中与上述MCCH对应的比特值与第二预设值相同，则上述UE确定上述MCCH发生变更。
其中，上述UE确定上述MCCH的MCCH修改周期的具体实施方式可以是：若上述MCCH的发送周期信息只包含一个MCCH修改周期，上述UE确定上述MCCH修改周期为上述MCCH的修改周期；或者，若上述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，上述UE根据MCCH周期选择参数和上述UE需要读取的多播业务确定上述MCCH的修改周期；或者，若上述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则上述UE根据MCCH 选择参数和上述UE需要读取的多播业务确定需要读取的MCCH；上述UE根据MCCH周期选择参数和上述UE需要读取的多播业务确定上述MCCH的修改周期。
请参见图2，图2为本发明实施例提供的多播业务收发方法的流程图。其中，如图2所示，本发明的一个实施例提供的多播业务收发方法的流程图可以包括步骤S201～S204：
S201、基站确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
S202、所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息。
本发明实施例中，基站根据上述MCCH的发送周期信息确定MCCH发送时间信息具体实施方式为：基站根据上述MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
在一发明实施例中，若每个MCCH重复周期内，只有一个发送MCCH的子帧，基站根据上述MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式为：基站根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
在另一发明实施例中，若每个MCCH重复周期内，有多个发送MCCH的候选子帧，基站根据上述MCCH重复周期和发送MCCH的偏移参数，确定上述MCCH发送时间信息对应的子帧位置的具体实施方式为：基站根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置集合。
S203、所述基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息。
本发明实施例中，基站使用上述MCCH-RNTI在上述MCCH发送时间信息发送MCCH消息的具体实施方式为：基站使用上述MCCH-RNTI发送上述MCCH的时间所对应的子帧位置发送物理下行控制信道PDCCH或增强的物 理下行控制信道EPDCCH；基站在上述PDCCH或EPDCCH中指定的MCCH消息的资源位置发送上述MCCH消息。
S204、所述基站根据所述多播业务的配置信息发送多播业务。
本发明实施例中，本发明实施例中，上述多播业务的配置信息包括下面信息中的至少一种：临时多播组标识(比如TMGI)、调度多播业务的G-RNTI、多播业务的调度信息和多播业务的传输模式TM(比如TM1：单天线模式，或者，TM2：发射分集模式，或者，TM3：开环多入多出模式)。
在一发明实施例中，基站根据上述多播业务的配置信息发送多播业务的具体实施方式为：基站根据上述调度多播业务的G-RNTI发送与上述临时多播组标识对应的多播业务。
其中，基站根据上述调度多播业务的G-RNTI发送与上述临时多播组标识对应的多播业务具体实施实施方式为：基站根据上述多播业务的G-RNTI向UE发送PDCCH调度信息或者E-PDCCH调度信息，上述PDCCH调度信息或者E-PDCCH调度信携带有上述频率资源和所述调制方式，并根据上述频率资源和上述调制方式发送上述多播业务。
可选的，上述调度多播业务的G-RNTI和上述临时多播组标识MCE向基站发送的。具体实施方式为：基站接收MCE向基站发送的标识配置信息，上述标识配置信息为多播业务启动通知，且上述多播业务启动通知携带有多播传输的业务的临时多播组标识以及调度多播业务的G-RNTI，基站根据上述多播业务启动通知确定用于读取多播业务的调度多播业务的G-RNTI和临时多播组标识。通过MCE向基站发送调度多播业务的G-RNTI和临时多播组标识以确保UE读取到的调度多播业务的G-RNTI和临时多播组标识相同。
在另一发明实施例中，基站根据上述多播业务的配置信息发送多播业务的具体实施方式为：基站根据上述多播业务的G-RNTI向UE发送PDCCH调度信息或者E-PDCCH调度信，上述PDCCH调度信息或者E-PDCCH调度信携带有上述频率资源和所述调制方式，并根据上述频率资源和上述调制方式发送和上述多播业务的传输模式上述多播业务。
在另一发明实施例中，基站根据上述多播业务的配置信息发送多播业务的具体实施方式为：基站根据上述多播业务的调度信息发送与上述临时多播组标 识对应的多播业务。
具体地，基站根据上述多播业务的调度信息确定上述多播业务对应的频率资源、时间资源、调制方式以及编码方式等等，然后根据上述多播业务对应的频率资源、时间资源、调制方式以及编码方式等等发送上述多播业务。
在另一发明实施例中，基站根据上述多播业务的配置信息发送多播业务的具体实施方式为：基站根据上述多播业务的调度信息和上述多播业务的传输模式发送与上述临时多播组标识对应的多播业务。
可以看出，本发明实施例中，基站确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息；所述基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息；所述基站根据所述多播业务的配置信息发送多播业务。本发明实施例中UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
可选的，在基站确定MCCH配置信息之后，图7所示的多播业务发送方法还包括：
若基站确定上述MCCH发生变更，基站发送上述MCCH变更通知；
上述基站根据上述MCCH的配置信息重新发送所述MCCH消息。
可选的，基站发送上述MCCH变更通知具体实施方式为：基站确定上述MCCH的MCCH修改周期；基站在上述MCCH修改周期根据上述MCCH-RNTI，在PDCCH或EPDCCH中发送变更标识，上述变更标识包括NDI和/或进程号；其中，上述变更标识为不同于上一修改周期的变更标识，或者上述变更标识为第一预设值的变更标识。
可选的，基站发送上述MCCH变更通知具体实施方式为：基站确定上述MCCH的MCCH修改周期和与上述MCCH修改周期对应的M-RNTI；基站在 上述MCCH对应的修改通知域中发送比特值，上述比特值与第二预设值相同，上述MCCH对应的修改通知域为非MBSFN子帧上述M-RNTI对应的PDCCH中包含的修改通知域中与上述MCCH对应的修改通知域。
可选的，基站根据上述MCCH的配置信息重新发送上述MCCH消息，包括：
基站根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期重新发送上述MCCH消息；或者，上述基站根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新发送上述MCCH消息。
可选的，基站确定上述MCCH的MCCH修改周期，包括：
若上述MCCH的发送周期信息只包含一个MCCH修改周期，上述基站确定上述MCCH修改周期为上述MCCH的修改周期；或者，若上述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，上述基站根据MCCH周期选择参数和上述基站需要发送的多播业务确定上述MCCH的修改周期；或者，若上述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则上述基站根据MCCH选择参数和上述基站需要发送的多播业务确定需要发送的MCCH；上述基站根据MCCH周期选择参数和上述基站需要发送的多播业务确定上述MCCH的修改周期。
可选的，基站确定MCCH配置信息之后，图7所示的多播业务发送方法还包括：上述基站向UE发送系统广播消息，上述消息携带有上述MCCH配置信息，以使得上述UE根据上述MCCH配置信息读取MCCH消息。
为了便于理解本发明实施例，下面先对本发明实施例的网络架构进行描述。请参阅图3，图3是本发明实施例公开的一种网络构架示意图。如图3所示，本发明实施例的网络构架可以包括UE和基站，其中，基站根据MCCH配置信息确定MCCH发送时间信息，并使用MCCH-RNTI在MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息，然后基站 根据所述多播业务的配置信息发送多播业务；UE根据MCCH配置信息确定MCCH发送时间信息，并使用MCCH-RNTI在MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息，然后UE根据所述多播业务的配置信息读取多播业务。
在图3所示的网络构架中，UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
基于图3所示的网络构架，本发明实施例公开了的一种多播业务收发方法。请参见图4，图4为本发明实施例提供的多播业务收发方法的流程图。其中，如图4所示，本发明的一个实施例提供的多播业务收发方法可以包括步骤S401～S408：
S401、基站确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
S402、基站根据所述MCCH的发送周期信息确定MCCH发送时间信息。
S403基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息。
S404、基站根据所述多播业务的配置信息向UE发送多播业务。
S405、UE确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
S406、UE根据所述MCCH的发送周期信息确定MCCH发送时间信息。
S407、UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息。
S408、UE根据所述多播业务的配置信息读取基站向UE发送的多播业务。
本发明实施例中，上述步骤S404的配置信息可以是在上述步骤S401之后，基站向UE发送的，也可以是UE和基站预定义的(如UE和基站通过协议互相约定好的MCCH的配置信息)，也可以是，上述步骤S404的配置信息的一 部分配置信息是在上述步骤S401之后基站向UE发送的，一部分配置信息是UE和基站预定义的。
本发明实施例中，上述步骤S402和上述步骤S406确定MCCH发送时间信息的具体实施方式有：
若每一个MCCH重复周期内，只有一个发送MCCH的子帧，上述UE/基站根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式可以是：UE/基站根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定上述MCCH发送时间信息对应的子帧位置。
具体地，UE/基站根据公式{[(SFN*10)+subframe number]modulo(R*10)＝S}，确定发送MCCH的子帧位置，其中，SFN为系统帧号，subframe number为子帧号，R为MCCH重复周期，S为MCCH的偏移参数。
举例来说，如图5所示，MCCH重复周期R＝2，MCCH的偏移参数S＝3，根据公式{[(SFN*10)+subframe number]modulo(R*10)＝S}，若SFN＝2时，2*10+mod20＝3满足上述公式；若SFN＝4时，4*10+mod20＝3满足上述公式；若SFN＝5时，5*10+mod20＝13不满足上述公式；若SFN＝6时，6*10+mod20＝3满足上述公式等等，则可得到SFN＝2、4、6等的帧的第三子帧满足发送MCCH的条件，因此SFN＝2、4、6等的帧的第三子帧为发送上述MCCH的时间所对应的子帧位置。
若每个MCCH重复周期内，有多个发送MCCH的候选子帧，上述UE/基站根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式可以是：上述UE/基站根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置集合。
具体地，UE/基站根据公式{(SFNs module(R)＝S}，确定发送MCCH的子帧位置，其中，SFNs为任意系统帧号，R为MCCH重复周期，S为MCCH的偏移参数。
举例来说，如图6所示，MCCH重复周期R＝2，MCCH的偏移参数S＝1，根据公式{(SFNs module(R)＝S}，若SFNs＝3，3mod2＝1满足上述公式；若 SFNs＝4，4mod2＝0不满足上述公式；若SFNs＝7，7mod2＝1满足上述公式；若SFNs＝9，9mod2＝1满足上述公式等等，则可得到SFN＝3、7、9等的帧满足发送MCCH的条件，也就是说SFN＝3、7、9等的帧所包含的子帧都有可能发送MCCH，此时UE需要通过MCCH-RNTI检测这些帧的所有子帧，以便于确定MCCH消息在哪个子帧发送，满足上述公式{(SFNs module(R)＝S}的这些帧即发送上述MCCH的时间所对应的子帧位置集合。
若每一个MCCH重复周期内，有一个或者多个发送MCCH的子帧，上述UE/基站根据MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置的具体实施方式可以是：UE/基站根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定MCCH的帧；UE/基站根据所述MCCH的帧和MCCH子帧集合配置信息，确定上述MCCH发送时间信息对应的子帧位置集合。
可选的，MCCH子帧集合配置信息包括MCCH子帧序列；或者，MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，MCCH子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
可选的，对于UE来说，上述MCCH子帧集合配置信息可以是由基站通过MCCH配置信令发送给UE，也可以是预定义的，本发明不作限定，上述MCCH配置信令可以为系统广播消息或者为UE专用信令。
可选的，对于基站来说，MCCH子帧集合配置信息是基站根据待发送的MCCH子帧信息确定的。
其中，待发送的MCCH子帧信息包括待发送MCCH子帧位置，所述MCCH子帧集合配置信息包括MCCH子帧序列，MCCH子帧序列是基站根据待发送MCCH子帧位置确定的；或者，待发送的MCCH子帧信息包括待发送MCCH子帧的数量，若待发送MCCH子帧包括一个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置，若待发送MCCH子帧包括多个子帧，所述M CCH子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
可选的，UE/基站根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定MCCH的帧的具体实施方式为：UE/基站根据公式{(SFNs module(R)＝S}，确定发送MCCH的帧，其中，SFNs为系统帧号，R为MCCH重复周 期，S为MCCH的偏移参数。满足该公式的SFN对应的系统帧为发送MCCH的系统帧。
可选的，上述MCCH子帧序列为位图序列或者子帧集合序列。UE根据MCCH发送的帧、位图序列每一位的取值以及位图序列每一位对应的子帧号，确定MCCH发送时间信息对应的子帧位置集合的具体实现方式有：上述位图序列的每一位对应一个子帧，上述位图序列的每一位的值标识对应的子帧是否发送MCCH。比如，位图序列包含10个比特，第一位至第十位分别对应子帧0到9，具体的，比如位图序列为001100000，表示2，3子帧发送MCCH，其余子帧不发送MCCH。上述子帧集合序列为子帧组成的集合，比如，子帧集合序列包含子帧2，3，4，则表示2，3，4子帧发送MCCH，其余子帧不发送MCCH。
其中，上述MCCH子帧起始位置用以指示发送MCCH的起始子帧，上述发送持续时间信息表示发送上述MCCH总共需要的子帧数量；或者，其除了起始子帧之外其他发送上述MCCH总共需要的子帧数量。
UE/基站根据MCCH子帧起始位置，确定发送MCCH的起始子帧，以及根据所述MCCH的起始子帧和所述发送持续时间信息，确定发送MCCH的所有子帧的具体实施方式有：
对于基站，如果MCCH可以在1个子帧发送完成，则基站在上述MCCH子帧集合配置信息配置MCCH发送的起始子帧，并且不配置所述发送持续时间信息，并在上述MCCH发送的起始子帧发送上述MCCH；如果MCCH不能在1个子帧发送完成，则在所述MCCH子帧集合配置信息配置MCCH发送的起始子帧，并且配置所述发送持续时间信息，基站根据所述起始子帧和发送持续时间确定发送MCCH的子帧，具体确定方法和UE确定方法相同。
对于所述UE，如果所述MCCH子帧集合配置信息包含所述发送持续时间信息，UE根据上述发送持续时间信息确定MCCH发送子帧的总数量；UE根据上述发送MCCH子帧的总数量和MCCH发送的起始子帧，确定发送MCCH的所有子帧，或者，UE根据上述发送MCCH子帧的总数量，MCCH发送的起始子帧，以及MBSFN子帧配置，确定发送MCCH的所有子帧。或者，如果上述MCCH子帧集合配置信息不包含发送持续时间信息，则UE/基站确定 上述发送MCCH子帧数量为1个子帧，该子帧为MCCH发送的起始子帧。
举例来说，上述MCCH子帧集合配置信息包含MCCH子帧起始位置为子帧3，持续时间为3个子帧，则UE/基站确定上述MCCH发送子帧为3，4，5子帧或者3，4，5，6子帧。又举例来说，上述MCCH子帧集合配置信息包含MCCH子帧起始位置为子帧3，持续时间为3个子帧，其中，MBSFN子帧配置指示4，5子帧为MBSFN子帧，则UE/基站确定上述MCCH发送子帧为子帧3开始的3个连续非MBSFN子帧：3，6，7。又举例来说，上述MCCH子帧集合配置信息包含MCCH子帧起始位置为子帧3，没有包含持续时间信息，则UE/基站确定MCCH发送子帧为3。
可选的，UE/基站还可根据MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；或者，UE/基站还可根据MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
具体地，上述MCCH子帧集合配置信息包含的起始子帧位置，UE/基站可根据起始子帧位置确定起始子帧，并将起始子帧作为MCCH修改通知的子帧，或者，UE/基站可根据MCCH子帧集合配置信息确定MCCH子帧位置集合，UE/基站可根据MCCH子帧位置集合确定发送MCCH的所有子帧，并将发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
可以看出，本发明实施例中，用户设备UE确定MCCH的配置信息，所述配置信息包括MCCH-RNTI和MCCH的发送周期信息；所述UE根据所述MCCH的发送周期信息确定所述MCCH发送时间信息；所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；所述UE根据所述多播业务的配置信息读取多播业务。本发明实施例中UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
可选的，若基站检测到MCCH发送变更，基站发送MCCH变更通知，并根据所述MCCH的配置信息重新发送所述MCCH消息。UE在确定上述MCCH发生变更时，UE根据所述MCCH的配置信息重新读取所述MCCH消息。
本发明实施例中，UE确定上述MCCH发送变更的具体实施方式有：
UE确定上述MCCH的MCCH修改周期；上述UE在上述MCCH修改周期根据上述MCCH-RNTI读取PDCCH或EPDCCH，以获取上述PDCCH或EPDCCH中的MCCH变更标志，上述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；上述UE根据上述MCCH变更标志确定上述MCCH是否发生变更；若上述MCCH变更标志与上一修改周期的变更标志不相同，则上述UE确定上述MCCH发生变更；或者，若上述MCCH变更标志与第一预设值相同，则上述UE确定上述MCCH发生变更。
举例来说，若上述变更标识为NDI，若UE获取到的NDI为1，上一修改周期的NDI为0，则UE确定上述MCCH发生变更；又如，若上述变更标识为进程号HARQ，若UE获取到的进程号HARQ为1，上述第一预设值为1～7，则UE确定上述MCCH发生变更；又如，上述变更标识为PDCCH或EPDCCH变更标志域中的变更标识，若UE获取到的PDCCH或EPDCCH变更标志域中的变更标识为1，上一修改周期的PDCCH或EPDCCH变更标志域中的变更标识为0，则UE确定上述MCCH发生变更；又如，若上述变更标识为NDI和进程号HARQ组合作为MCCH变更标识，若UE获取到的NDI和进程号HARQ组合的值为1上述第一预设值为1～15，UE确定上述MCCH发生变更。
或者，
UE确定上述MCCH的MCCH修改周期和与上述MCCH修改周期对应的M-RNTI；上述UE在非MBSFN子帧读取上述M-RNTI对应的PDCCH中包含的修改通知域；若上述修改通知域中与上述MCCH对应的比特值与第二预设值相同，则上述UE确定上述MCCH发生变更。
举例来说，上述修改通知域为包含8bit的修改通知域，其中，每个bit对应一个MCCH，若上述bit修改通知域中与上述MCCH对应的比特值为1，上述第二预设值为1，则上述UE确定上述MCCH发生变更。
本发明实施例中，UE确定上述MCCH的MCCH修改周期的具体实施方式有：
若上述MCCH的发送周期信息只包含一个MCCH修改周期，UE确定该MCCH修改周期为上述MCCH修改周期。若上述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，上述UE根据MCCH周期选择参数和上述UE需要读取的多播业务确定上述MCCH的修改周期，比如，上述MCCH修改周期有两个，一个MCCH修改周期对应多播业务类型为低时延，一个MCCH修改周期对应多播业务类型为非低时延，若UE需要读取的业务为低时延业务，则UE确定低时延对应的修改周期为MCCH修改周期。若上述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，上述UE根据MCCH选择参数和上述UE需要读取的多播业务确定需要读取的MCCH；上述UE根据MCCH周期选择参数和上述UE需要读取的多播业务确定上述MCCH的修改周期，比如，MCCH配置信息包括两条MCCH，MCCH1对应多播业务类型为低时延，MCCH2对应多播业务类型为非低时延，若UE需要读取的业务为低时延业务，则UE读取的MCCH为MCCH1，MCCH1的MCCH修改周期有两个，一个MCCH修改周期对应多播业务类型为低时延，一个MCCH修改周期对应多播业务类型为非低时延，若UE需要读取的业务为低时延业务，则UE确定低时延对应的修改周期为MCCH修改周期。
本发明实施例中，若UE确定上述MCCH发生变更，上述UE根据上述MCCH的配置信息重新读取上述MCCH消息，UE根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期重新读取上述MCCH消息，如图6所示UE初始读取NDI＝0，在下个修改周期读取NDI＝1，确定MCCH信息发生变化，从当前修改周期开始读取新的MCCH；或者，上述UE根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取上述MCCH消息，如图7所示UE初始读取NDI＝0，在下个修改周期读取NDI＝1，确定MCCH信息将要发生变化，从当前修改周期的下个修改周期开始读取新的MCCH。
本发明实施例中，基站发送MCCH变更通知的具体实施方式有：
基站确定上述MCCH的MCCH修改周期；并在上述MCCH修改周期根据上述MCCH-RNTI，在PDCCH或EPDCCH中发送变更标识，上述变更标识包括NDI和/或进程号；其中，上述变更标识为不同于上一修改周期的变更标识，或者上述变更标识为第一预设值的变更标识。其中，上述变更标识与上述UE确定的变更标识相同，在此不再一一说明。
基站确定上述MCCH的MCCH修改周期和与上述MCCH修改周期对应的M-RNTI；并在上述MCCH对应的修改通知域中发送比特值，上述比特值与第二预设值相同，上述MCCH对应的修改通知域为非MBSFN子帧上述M-RNTI对应的PDCCH中包含的修改通知域中与上述MCCH对应的修改通知域。
本发明实施例中，基站确定上述MCCH的MCCH修改周期与UE确定MCCH的MCCH修改周期的具体实施方式相同，其具体实现过程可以参照UE确定MCCH的MCCH修改周期的具体实现过程，在此不再一一说明。
本发明实施例中，若基站确定上述MCCH发生变更，上述基站根据上述MCCH的配置信息重新发送上述MCCH消息，基站根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期重新发送上述MCCH消息，如图7所示初始NDI＝0，基站在下个修改周期发送的NDI＝1，基站从当前修改周期开始发送新的MCCH；或者，上述UE根据上述MCCH的配置信息在确定上述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取上述MCCH消息，如图8所示初始读取NDI＝0，基站在下个修改周期发送的NDI＝1，基站从当前修改周期的下个修改周期开始发送新的MCCH。
请参见图9，图9为本发明实施例提供的一种用户设备UE的结构示意图，该UE包括：
第一确定单元901，用于确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
其中，上述MCCH配置信息包括预定义的配置信息、基站通过系统广播 消息向UE发送的配置信息中的至少一种。
第二确定单元902，用于根据所述MCCH的发送周期信息确定MCCH发送时间信息。
其中，上述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数，上述第二确定单元902具体用于：根据上述MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
其中，若每个MCCH重复周期内，只有一个发送MCCH的子帧，上述第二确定单元902具体用于：根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
其中，若每个MCCH重复周期内，有多个发送MCCH的候选子帧，上述第二确定单元902具体用于：根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置集合。
其中，上述第二确定单元902具体用于：根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
其中，所述MCCH子帧集合配置信息是所述基站向所述UE发送的MCCH配置信令携带的，所述MCCH配置信令为系统广播消息或者UE的专用信令。
其中，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
其中，所述MCCH子帧序列为位图序列，所述第二确定单元902具体用于：根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
其中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧。
其中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述第二确定单元902具体用于：
根据所述发送持续时间信息，确定发送MCCH子帧的总数量；根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
可选的，图9所示的UE还包括：
第三确定单元，用于根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
或者，第四确定单元，用于根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
第一读取单元903，用于使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息。
其中，上述第一读取单元903具体用于：使用上述MCCH-RNTI在发送所述MCCH的时间所对应的子帧位置读取物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH；在上述PDCCH或EPDCCH中指定的MCCH消息的资源位置读取上述MCCH消息。
第二读取单元904，用于根据所述多播业务的配置信息读取多播业务。
其中，上述多播业务的配置信息包括临时多播组标识和调度多播业务的G-RNTI，上述第二读取单元904具体用于：根据上述调度多播业务的G-RNTI读取与上述临时多播组标识对应的多播业务。
其中，上述第二读取单元904具体用于：根据上述多播业务的G-RNTI读取PDCCH调度信息；根据上述PDCCH调度信息确定与上述临时多播组标识对应的多播业务对应的频率资源和调制方式，并根据上述频率资源和上述调制方式读取上述多播业务。
其中，上述多播业务的配置信息包括临时多播组标识和多播业务的调度信息，上述第二读取单元904具体用于：根据上述多播业务的调度信息读取与上述临时多播组标识对应的多播业务。
可选的，在第一确定单元901确定MCCH配置信息之后，图9所示的UE还包括：第五确定单元，用于确定所述MCCH是否发生变更；第三读取单元， 用于若确定所述MCCH发生变更，根据所述MCCH的配置信息重新读取所述MCCH消息。
其中，上述第五确定单元具体用于：确定所述MCCH的MCCH修改周期；在所述MCCH修改周期根据所述MCCH-RNTI读取PDCCH或EPDCCH，以获取所述PDCCH或EPDCCH中的MCCH变更标志，所述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；若所述MCCH变更标志与上一修改周期的变更标志不相同，则确定所述MCCH发生变更；或者，若所述MCCH变更标志与第一预设值相同，则所述MCCH发生变更。
其中，上述第五确定单元还具体用于：确定所述MCCH的MCCH修改周期和与所述MCCH修改周期对应的M-RNTI；在非MBSFN子帧读取所述M-RNTI对应的PDCCH中包含的修改通知域；若所述修改通知域中与所述MCCH对应的比特值与第二预设值相同，则所述MCCH发生变更。
其中，上述第三读取单元具体用于：根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新读取所述MCCH消息；或者，根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取所述MCCH消息。
其中，上述第五确定单元还具体用于：若所述MCCH的发送周期信息只包含一个MCCH修改周期，确定所述MCCH修改周期为所述MCCH的修改周期；或者，若所述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，根据MCCH周期选择参数和所述UE需要读取的多播业务确定所述MCCH的修改周期；或者，若所述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则根据MCCH选择参数和所述UE需要读取的多播业务确定需要读取的MCCH；根据MCCH周期选择参数和所述UE需要读取的多播业务确定所述MCCH的修改周期。
可以理解的是，本实施例的UE的各功能模块的功能可根据所述方法实施例中的方法具体实现，其具体实现过程可以参照所述方法实施例。
可以看出，本发明实施例中，第一确定单元901确定MCCH的配置信息，所述配置信息包括MCCH-RNTI和MCCH的发送周期信息；第二确定单元902根据所述MCCH的发送周期信息确定所述MCCH发送时间信息；第一读取单元903使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；第二读取单元904根据所述多播业务的配置信息读取多播业务。本发明实施例中UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
请参见图10，图10为本发明实施例提供的一种基站的结构示意图，该基站包括：
第一确定单元1001，用于确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息。
第二确定单元1002，用于根据所述MCCH的发送周期信息确定MCCH发送时间信息。
其中，上述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数，上述第二确定单元1002具体用于：根据上述MCCH重复周期和发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
其中，若每个MCCH重复周期内，只有一个发送MCCH的子帧，上述第二确定单元1002具体用于：根据系统帧号、子帧号、MCCH重复周期以及发送MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
其中，若每个MCCH重复周期内，有多个发送MCCH的候选子帧，上述第二确定单元1002具体用于：根据系统帧号、MCCH重复周期以及MCCH的偏移参数，确定发送上述MCCH的时间所对应的子帧位置。
其中，所述第二确定单元1002具体用于：
根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定 MCCH发送的帧；根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
其中，MCCH子帧集合配置信息是所述基站根据需要发送的MCCH子帧确定的。
其中，若所述MCCH子帧集合配置信息是基站根据需要发送MCCH的子帧位置确定的，所述子帧集合配置信息包括MCCH子帧序列；若需要发送MCCH的子帧包括一个子帧，所述子帧集合配置信息包括MCCH子帧起始位置；若需要发送MCCH的子帧包括多个子帧，所述子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
其中，所述MCCH子帧序列为位图序列，所述第二确定单元1002具体用于：
根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
其中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧。
其中，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述第二确定单元1002具体用于：
根据所述发送持续时间信息，确定发送MCCH子帧的总数量；
根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
可选的，图10所示的基站还包括：
第三确定单元，用于根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
或者，第四确定单元，用于根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
第一发送单元1003，用于使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息。
其中，上述第一发送单元1003具体用于：使用上述MCCH-RNTI在发送上述MCCH的时间所对应的子帧位置发送物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH；在上述PDCCH或EPDCCH中指定的MCCH消息的资源位置发送上述MCCH消息。
第二发送单元1004，用于根据所述多播业务的配置信息发送上述多播业务。
其中，上述多播业务的配置信息包括临时多播组标识和调度上述多播业务的G-RNTI，上述第二发送单元1004具体用于：根据上述调度上述多播业务的G-RNTI发送与上述临时多播组标识对应的多播业务。
其中，上述第二发送单元1004具体用于：确定与上述临时多播组标识对应的多播业务的频率资源和调制方式；根据上述多播业务的G-RNTI向UE发送PDCCH调度信息，上述PDCCH调度信息携带有上述频率资源和上述调制方式，并根据上述频率资源和上述调制方式发送上述多播业务。
其中，上述多播业务的配置信息包括临时多播组标识和多播业务的调度信息，上述第二发送单元1004具体用于：根据上述多播业务的调度信息发送与上述临时多播组标识对应的多播业务。
可选的，在上述第一确定单元1001确定MCCH配置信息之后，图10所示的基站还包括：第三发送单元，用于若确定上述MCCH发生变更，发送上述MCCH变更通知；第四发送单元，用于根据上述MCCH的配置信息重新发送上述MCCH消息。
其中，上述第三发送单元具体用于：确定所述MCCH的MCCH修改周期；在所述MCCH修改周期根据所述MCCH-RNTI，在PDCCH或EPDCCH中发送变更标识，所述变更标识包括以下变更标识中的任意一个：PDCCH或EPDCCH变更标志域中的变更标识、NDI、进程号以及NDI和进程号的组合；其中，所述变更标识为不同于上一修改周期的变更标识，或者所述变更标识为第一预设值的变更标识。
其中，上述第三发送单元具体用于：确定所述MCCH的MCCH修改周期 和与所述MCCH修改周期对应的M-RNTI；在所述MCCH对应的修改通知域中发送比特值，所述比特值与第二预设值相同，所述MCCH对应的修改通知域为非MBSFN子帧所述M-RNTI对应的PDCCH中包含的修改通知域中与所述MCCH对应的修改通知域。
其中，上述第四发送单元具体用于：根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新发送所述MCCH消息；或者，根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新发送所述MCCH消息。
其中，上述第三发送单元具体用于：若所述MCCH的发送周期信息只包含一个MCCH修改周期，确定所述MCCH修改周期为所述MCCH的修改周期；或者，若所述MCCH的发送周期信息包含多个MCCH修改周期，且每一个MCCH修改周期有与MCCH修改周期对应的周期选择参数，根据MCCH周期选择参数和所述基站需要发送的多播业务确定所述MCCH的修改周期；或者，若所述MCCH配置信息包括多条MCCH，每一条MCCH有多个MCCH修改周期，且每一条MCCH有与MCCH对应的MCCH选择参数，则根据MCCH选择参数和所述基站需要发送的多播业务确定需要发送的MCCH；根据MCCH周期选择参数和所述基站需要发送的多播业务确定所述MCCH的修改周期。
可选的，所述MCCH配置信息包括预定义的配置信息、MCE向所述基站发送的配置信息中的至少一种。
可以理解的是，本实施例的基站的各功能模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例。
可以看出，本发明实施例中，第一确定单元1001确定MCCH配置信息，上述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；第二确定单元1002根据上述MCCH的发送周期信息确定MCCH发送时间信息；第一发送单元1003使用上述MCCH-RNTI在上述MCCH发送时间信息发送MCCH消息，上述MCCH消息包括多播业务的配置信息；第二发送单元1004根据上述多播业务的配置信息发送多播业务。本发明实施例中UE通过配置MCCH-RNTI来识别一个子帧中的MCCH，使得MCCH可以在任意一个子帧 中传输，而不仅仅局限于在MBSFN子帧中传输，进而使得在其他非MBSFN子帧也可用于传输MCCH，因此，MCCH不一定都在MBSFN子帧中传输，使得部分MBSFN子帧可以不传输MCCH而全部用于传输UE相关的MBSFN业务数据，从而降低了MBSFN子帧的浪费。
图11所示为本发明实施例提供的UE示意图。UE1100包括至少一个处理器1101，通信总线1102，存储器1103、至少一个通信接口1104、发送器1105以及接收器1106。
处理器1101可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本发明方案程序执行的集成电路。
通信总线1102可包括一通路，在上述组件之间传送信息。所述通信接口1104，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(RAN)，无线局域网(Wireless Local Area Networks，WLAN)等。
存储器1103可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中，所述存储器1103用于存储执行本发明方案的应用程序代码，并由处理器1101来控制执行。所述处理器1101用于执行所述存储器1103中存储的应用程序代码。
图11所示的UE的存储器503存储的代码可执行本发明提供的多播业务 读取方法，比如，确定多播控制信道MCCH配置信息，所述MCCH配置信息包括多播控制信道的无线网络临时标识MCCH-RNTI和MCCH的发送周期信息，然后根据所述MCCH的发送周期信息确定MCCH发送时间信息，再然后使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息，最后根据所述多播业务的配置信息读取所述多播业务。
在具体实现中，作为一种实施例，UE1100还可以包括发送器1105和接收器1106。发送器1105和处理器1101通信，可以以多种方式来显示信息。接收器1106和处理器1101通信，可以以多种方式接受应用服务器或业务层装置发送的信令。
上述的UE1100可以是一个通用计算机设备或者是一个专用计算机设备。在具体实现中，计算机设备1100可以是台式机、便携式电脑、网络服务器、掌上电脑(Personal Digital Assistant，PDA)、移动手机、平板电脑、无线终端设备、通信设备、嵌入式设备或有图11中类似结构的设备。本发明实施例不限定UE1100的类型。
图12所示为本发明实施例提供的基站示意图。基站1200包括至少一个处理器1201，通信总线1202，存储器1203、至少一个通信接口1204、发送器1205以及接收器1206。
处理器1201可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本发明方案程序执行的集成电路。
通信总线1202可包括一通路，在上述组件之间传送信息。所述通信接口1204，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(RAN)，无线局域网(Wireless Local Area Networks，WLAN)等。
存储器1203可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以 是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中，所述存储器1203用于存储执行本发明方案的应用程序代码，并由处理器1201来控制执行。所述处理器1201用于执行所述存储器1203中存储的应用程序代码。
图12所示的UE的存储器1203存储的代码可执行本发明提供的多播业务发送方法，比如，确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息，然后根据所述MCCH的发送周期信息确定MCCH发送时间信息，再然后使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息，最后根据所述多播业务的配置信息发送所述多播业务。
在具体实现中，作为一种实施例，基站1200还可以包括发送器1205和接收器1206。发送器1205和处理器1201通信，可以以多种方式来显示信息。接收器1206和处理器1201通信，可以以多种方式接受应用服务器或业务层装置发送的信令。
本发明实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的任何一种多播业务读取方法的部分或全部步骤。
本发明实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的任何一种多播业务发送方法的部分或全部步骤。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的 动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或模块的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储器中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储器中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储器包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储器中，存储器可以包括：闪存盘、只读存储器(英文：Read-Only Memory，简称：ROM)、随机存取器(英文：Random Access Memory，简称：RAM)、磁盘或光盘等。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上上述，本说明书内容不应理解为对本发明的限制。

Claims (40)

  1. 一种多播业务读取方法，其特征在于，包括：
    用户设备UE确定多播控制信道MCCH配置信息，所述MCCH配置信息包括多播控制信道的无线网络临时标识MCCH-RNTI和MCCH的发送周期信息；
    所述UE根据所述MCCH的发送周期信息确定MCCH发送时间信息；
    所述UE使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；
    所述UE根据所述多播业务的配置信息读取所述多播业务。
  2. 根据权利要求1所述的方法，其特征在于，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数；
    所述UE根据所述MCCH的发送周期信息确定MCCH发送时间信息，包括：
    所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
  3. 根据利要求2所述的方法，其特征在于，所述UE根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
    所述UE根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；
    所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
  4. 根据权利要求3所述的方法，其特征在于，所述MCCH子帧集合配置信息是所述基站向所述UE发送的MCCH配置信令携带的，所述MCCH配置信令为系统广播消息或者UE的专用信令。
  5. 根据要求3或4所述的方法，其特征在于，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起 始位置和发送持续时间信息。
  6. 根据要求5所述的方法，其特征在于，所述MCCH子帧序列为位图序列，所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
    所述UE根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
  7. 根据要求5所述的方法，其特征在于，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧。
  8. 根据要求5所述的方法，其特征在于，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述UE根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
    所述UE根据所述发送持续时间信息，确定发送MCCH子帧的总数量；
    所述UE根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
  9. 根据权利要求3-8任一项所述的方法，其特征在于，所述方法还包括：
    所述UE根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
    或者，
    所述UE根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
  10. 根据权要求1～9任一项所述的方法，其特征在于，所述UE确定MCCH配置信息之后，所述方法还包括：
    所述UE确定所述MCCH是否发生变更；
    若所述UE确定所述MCCH发生变更，所述UE根据所述MCCH的配置信息重新读取所述MCCH消息。
  11. 根据权利要求10所述的方法，其特征在于，所述UE根据所述MCCH的配置信息重新读取所述MCCH消息，包括：
    所述UE根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新读取所述MCCH消息；
    或者，
    所述UE根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取所述MCCH消息。
  12. 一种多播业务发送方法，其特征在于，包括：
    基站确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；
    所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息；
    所述基站使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息；
    所述基站根据所述多播业务的配置信息发送所述多播业务。
  13. 根据权利要求12所述的方法，其特征在于，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数；
    所述基站根据所述MCCH的发送周期信息确定MCCH发送时间信息，包括：
    所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
  14. 根据利要求13所述的方法，其特征在于，所述基站根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置，包括：
    所述基站根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；
    所述基站根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
  15. 根据权利要求14所述的方法，其特征在于，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
  16. 根据权利要求14所述的方法，其特征在于，所述MCCH子帧集合配置信息是所述基站根据待发送的MCCH子帧信息确定的；
    其中，所述待发送的MCCH子帧信息包括待发送MCCH子帧位置，所述MCCH子帧集合配置信息包括MCCH子帧序列，所述MCCH子帧序列是所述基站根据所述待发送MCCH子帧位置确定的；或者，所述待发送的MCCH子帧信息包括待发送MCCH子帧的数量，若所述待发送MCCH子帧包括一个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置，若待发送MCCH子帧包括多个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
  17. 根据要求16所述的方法，其特征在于，所述MCCH子帧序列为位图序列，所述基站根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
    所述基站根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合。
  18. 根据要求16所述的方法，其特征在于，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧。
  19. 根据要求16所述的方法，其特征在于，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述基站根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合，包括：
    所述基站根据所述发送持续时间信息，确定发送MCCH子帧的总数量；
    所述基站根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧 的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
  20. 根据权利要求14-19任一项所述的方法，其特征在于，所述方法还包括：
    所述基站根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
    或者，
    所述基站根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
  21. 根据权利要求12～20任一项所述的方法，其特征在于，所述基站确定MCCH配置信息之后，所述方法还包括：
    若所述基站确定所述MCCH发生变更，所述基站发送所述MCCH变更通知；
    所述基站根据所述MCCH的配置信息重新发送所述MCCH消息。
  22. 根据权利要求21所述的方法，其特征在于，所述基站根据所述MCCH的配置信息重新发送所述MCCH消息，包括：
    所述基站根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新发送所述MCCH消息；
    或者，
    所述基站根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新发送所述MCCH消息。
  23. 一种用户设备UE，其特征在于，包括：
    第一确定单元，用于确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；
    第二确定单元，用于根据所述MCCH的发送周期信息确定MCCH发送时间信息；
    第一读取单元，用于使用所述MCCH-RNTI在所述MCCH发送时间信息读取MCCH消息，所述MCCH消息包括多播业务的配置信息；
    第二读取单元，用于根据所述多播业务的配置信息读取所述多播业务。
  24. 根据权利要求23所述的UE，其特征在于，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数，所述第二确定单元具体用于：
    根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
  25. 根据权利要求24所述的UE，其特征在于，所述第二确定单元具体用于：
    根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
  26. 根据权利要求25所述的UE，其特征在于，所述MCCH子帧集合配置信息是所述基站向所述UE发送的MCCH配置信令携带的，所述MCCH配置信令为系统广播消息或者UE的专用信令。
  27. 根据权利要求25或26所述的UE，其特征在于，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
  28. 根据权利要求27所述的UE，其特征在于，
    所述MCCH子帧序列为位图序列，所述第二确定单元具体用于：根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合；
    或者，
    所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧；
    或者，
    所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述第二确定单元具体用于：根据所述发送持续时间信息，确 定发送MCCH子帧的总数量；
    所述UE根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
  29. 根据权利要求25-28任一项所述的UE，其特征在于，所述UE还包括：
    第三确定单元，用于根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
    或者，
    第四确定单元，用于根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
  30. 根据权利要求22-29任一项所述的UE，其特征在于，所述UE还包括：
    第五确定单元，用于确定所述MCCH是否发生变更；
    第三读取单元，用于若所述UE确定所述MCCH发生变更，根据所述MCCH的配置信息重新读取所述MCCH消息；
    其中，所述第三读取单元具体用于：根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新读取所述MCCH消息；或者，根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新读取所述MCCH消息。
  31. 一种基站，其特征在于，包括：
    第一确定单元，用于确定MCCH配置信息，所述MCCH配置信息包括MCCH-RNTI和MCCH的发送周期信息；
    第二确定单元，用于根据所述MCCH的发送周期信息确定MCCH发送时间信息；
    第一发送单元，用于使用所述MCCH-RNTI在所述MCCH发送时间信息发送MCCH消息，所述MCCH消息包括多播业务的配置信息；
    第二发送单元，用于根据所述多播业务的配置信息发送所述多播业务。
  32. 根据权利要求31所述基站，其特征在于，所述MCCH的发送周期信息包括MCCH重复周期和发送MCCH的偏移参数，所述第二确定单元具体用于：
    根据所述MCCH重复周期和发送MCCH的偏移参数，确定发送所述MCCH的时间所对应的子帧位置。
  33. 根据权利要求32所述基站，其特征在于，所述第二确定单元具体用于：
    根据系统帧号、所述MCCH重复周期以及所述MCCH的偏移参数，确定MCCH发送的帧；根据所述MCCH发送的帧和MCCH子帧集合配置信息，确定所述MCCH发送时间信息对应的子帧位置集合。
  34. 根据权利要求33所述基站，其特征在于，所述MCCH子帧集合配置信息包括MCCH子帧序列；或者，所述MCCH子帧集合配置信息包括MCCH子帧起始位置；或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和发送持续时间信息。
  35. 根据权利要求33所述基站，其特征在于，所述MCCH子帧集合配置信息是所述基站根据待发送的MCCH子帧信息确定的；
    其中，所述待发送的MCCH子帧信息包括待发送MCCH子帧位置，所述MCCH子帧集合配置信息包括MCCH子帧序列，所述MCCH子帧序列是所述基站根据所述待发送MCCH子帧位置确定的；或者，所述待发送的MCCH子帧信息包括待发送MCCH子帧的数量，若所述待发送MCCH子帧包括一个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置，若待发送MCCH子帧包括多个子帧，所述MCCH子帧集合配置信息包括MCCH子帧起始位置和发送持续时间信息。
  36. 根据权利要求35所述基站，其特征在于，
    所述MCCH子帧序列为位图序列，所述第二确定单元具体用于：根据所述MCCH发送的帧、所述位图序列每一位的取值以及所述位图序列每一位对应的子帧号，确定所述MCCH发送时间信息对应的子帧位置集合；
    或者，
    所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置，所述MCCH发送时间信息对应的子帧位置集合包括1个子帧，所述子帧为所述MCCH子帧起始位置对应的子帧；
    或者，所述MCCH子帧集合配置信息包括所述MCCH子帧起始位置和所述发送持续时间信息，所述第二确定单元具体用于：根据所述发送持续时间信息，确定发送MCCH子帧的总数量；根据所述发送MCCH子帧的总数量和所述MCCH发送的起始子帧，确定发送MCCH的所有子帧；或者，所述UE根据所述发送MCCH子帧的总数量，所述MCCH发送的起始子帧，以及所述MBSFN子帧配置确定，发送MCCH的所有子帧。
  37. 根据权利要求34-36任一项所述基站，其特征在于，所述基站还包括：
    第三确定单元，用于根据所述MCCH子帧集合配置信息，确定起始子帧，并将所述起始子帧作为MCCH修改通知的子帧；
    第四确定单元，用于根据所述MCCH子帧集合配置信息，确定发送MCCH的所有子帧，并将所述发送MCCH的所有子帧中的任意一个子帧作为MCCH修改通知的子帧。
  38. 根据权利要求32-37任一项所述基站，其特征在于，所述基站还包括：
    第五确定单元，用于若所述基站确定所述MCCH发生变更，发送所述MCCH变更通知；
    第三发送单元，用于根据所述MCCH的配置信息重新发送所述MCCH消息，
    其中，所述第三发送单元具体用于：根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期重新发送所述MCCH消息；或者，根据所述MCCH的配置信息在确定所述MCCH发生变更的当前MCCH修改周期后的下一个MCCH修改周期重新发送所述MCCH消息。
  39. 一种用户设备UE，其特征在于，包括：
    存储有可执行程序代码的存储器；
    与所述存储器耦合的处理器；
    所述处理器调用所述存储器中存储的所述可执行程序代码，执行如权利要求1至11任一项所述的方法。
  40. 一种基站，其特征在于，包括：
    存储有可执行程序代码的存储器；
    与所述存储器耦合的处理器；
    所述处理器调用所述存储器中存储的所述可执行程序代码，执行如权利要求12至22任一项所述的方法。
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