WO2018058637A1 - 多播数据调度方法、终端设备及接入网设备 - Google Patents

多播数据调度方法、终端设备及接入网设备 Download PDF

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Publication number
WO2018058637A1
WO2018058637A1 PCT/CN2016/101318 CN2016101318W WO2018058637A1 WO 2018058637 A1 WO2018058637 A1 WO 2018058637A1 CN 2016101318 W CN2016101318 W CN 2016101318W WO 2018058637 A1 WO2018058637 A1 WO 2018058637A1
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Prior art keywords
information
sps
service
control information
scheduling
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PCT/CN2016/101318
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English (en)
French (fr)
Inventor
王宏
李秉肇
陈力
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华为技术有限公司
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Priority to CN201680083453.2A priority Critical patent/CN108781345B/zh
Priority to PCT/CN2016/101318 priority patent/WO2018058637A1/zh
Publication of WO2018058637A1 publication Critical patent/WO2018058637A1/zh

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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a multicast data scheduling method, a terminal device, and an access network device.
  • LTE-Machine Type Communication is different from traditional LTE communication. It does not pursue data transmission rate, multi-band, multi-antenna and full-duplex transmission, but pursues terminal equipment. Low power consumption and low cost.
  • MTC terminal equipment such as water meters and electricity meters
  • coverage enhancement is required to make the access network equipment and The terminal device can support the coverage enhancement.
  • the main method for implementing the extended coverage is that the access network device repeatedly sends data repeatedly.
  • the terminal device receives the data sent by the combined access network device multiple times to improve the data receiving success rate.
  • each MTC terminal device needs to establish a communication link with the access network device, and the base station faces a large number of terminal device connections.
  • the base station faces a large number of terminal device connections.
  • the existing technical solution is specifically: introducing repetition on the basis of the existing single cell point to multi-point communication (SC-PTM) Repetition, a group of terminal devices receiving service data of the same SC-PTM service use the same downlink configuration, and the access network device does not have to establish a communication link with each terminal device, therefore, multiple transmissions may be repeated.
  • SC-PTM single cell point to multi-point communication
  • the coverage enhancement of the SC-PTM is implemented, which is beneficial for the terminal device to receive the service data of the SC-PTM service.
  • the service information of the SC-PTM service needs to be repeatedly transmitted in the process of repeated transmission, and the control information of the SC-PTM service is carried on the single-cell multicast control channel (Single Cell Multi).
  • SC-MCCH single-cell multicast Control Channel
  • SC-MCCH Single Cell Multi
  • PDSCH Physical Downlink Shared Channel
  • the resources on the PDSCH need to be controlled by the control information of the Physical Downlink Control Channel (PDCCH). Therefore, the increase in the number of control information sent by the SC-PTM service will inevitably increase the consumption of the PDCCH resources and also the control of the terminal device. The increase in information increases the power consumption of the terminal device.
  • the present invention provides a multicast data scheduling method, a terminal device, and an access network device, which are used to apply the SPS technology to an LTE-MTC communication system, so as to save radio resources and reduce power consumption of the terminal device.
  • a first aspect of the present invention provides a multicast data scheduling method, including:
  • the access network device sends configuration information of the SPS information to the terminal device, where the SPS information is used to schedule target data carried on the PDSCH, where the target data is control information or service data of the SC-PTM service;
  • the access network device sends the target data to the terminal device according to the configuration information.
  • the SC-PTM technology can implement the technical features of the same multicast data sent by the access network device to multiple terminal devices in a single cell, and combines Semi-Persistent-Scheduling (SPS) technology, and the SPS technology allows access network devices.
  • SPS Semi-statically configure radio resources (SPS resources) and periodically assign SPS resources to a certain (or some) specific terminal device.
  • SPS information needs to be configured first.
  • the target data is the control information or the service data of the SC-PTM service, and the configuration information of the SPS information is sent to the terminal device, so that the terminal device can be configured according to the configuration information.
  • the terminal device can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the configuration information, and does not need a dynamic PDCCH to schedule; if the target data It is the service data of the SC-PTM service.
  • the terminal device can know the resources occupied by the service data of the SC-PTM service on the PDSCH according to the configuration information, and does not need dynamic PDCCH scheduling, thereby reducing the number of control information on the PDCCH.
  • the consumption of PDCCH resources is reduced, and the power consumption of the terminal device is reduced.
  • the target data is control information of an SC-PTM service, where the configuration information includes a first SPS period information, a repetition quantity, a scheduling identifier, and a narrowband indication.
  • At least one of the first SPS period information is a modification period of the control information, a repetition period of the control information, a multiple of a modification period of the control information, or a At least one of a multiple of a repetition period of the control information, the repetition number being a number of repeated transmissions of the control information, the scheduling identifier being used to scramble a PDCCH carrying the SPS information, the narrowband indication being used for A narrow band indicating that the SPS information is applicable.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Business data for the SC-PTM business If the target data is the control information of the SC-PTM service, since the SC-MCCH is mapped to the PDSCH, the control information of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the first SPS period information, the number of repetitions, and the scheduling identifier.
  • the first SPS period information is at least one of a modification period of the control information of the SC-PTM service, a repetition period of the control information, a multiple of the modification period of the control information, or a multiple of the repetition period of the control information
  • the number of repetitions is the number of repeated transmissions of the control information
  • the scheduling identifier is specifically an SC-MCCH (Single Cell Radio Network Tempory Identity, SC-RNTI), which is used to scramble the PDCCH carrying the SPS information
  • SC-RNTI Single Cell Radio Network Tempory Identity
  • the terminal device After receiving the configuration information, the terminal device can receive the control information of the SC-PTM service according to the configuration information, and does not require the access network device to send the control information of the SC-PTM service on the PDCCH every period.
  • the scheduling information therefore, saves PDCCH resources, and the power consumption of the terminal device is also reduced.
  • the method before the access network device sends the configuration information of the SPS information to the terminal device, the method further includes:
  • the access network device configures the SPS information through the SIB, where the SIB includes configuration information of the SC-MCCH control information, and the configuration information of the SC-MCCH control information is used to schedule the control information of the SC-PTM service carried on the SC-MCCH. .
  • the SPS information may be configured according to the SIB. Simple implementation.
  • the target data is service data of an SC-PTM service
  • the configuration information includes a second SPS period information, a correspondence relationship, a repetition quantity, and a scheduling identifier.
  • the SPS period information is a period in which the service data is repeatedly sent
  • the correspondence is used to indicate an SC-PTM to which the SPS information is applicable.
  • the number of repetitions is the number of repeated transmissions of the service data
  • the scheduling identifier is used to scramble a PDCCH carrying the SPS information
  • the narrowband indicates a narrowband used to indicate that the SPS information is applicable.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Business data for the SC-PTM business If the target data is the service data of the SC-PTM service, the SC-MTCH is mapped to the PDSCH, so the service data of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the second SPS period information, the correspondence relationship, and the number of repetitions.
  • the SPS period information is a period in which the service data is repeatedly transmitted, and the corresponding relationship is used to indicate the SC-PTM service to which the SPS information is applicable, and the repetition number is the number of repeated transmissions of the service data, and the scheduling identifier is specific.
  • An identifier (G-RNTI) for scheduling the SC-MTCH which is used to scramble the PDCCH carrying the SPS information, and the narrowband indicates a narrowband for indicating that the SPS information is applicable.
  • the terminal device can receive the SC according to the configuration information.
  • the service data of the PTM service does not require the access network device to transmit the scheduling information of the service data of the SC-PTM service on the PDCCH every cycle. Therefore, the PDCCH resource is saved, and the power consumption of the terminal device is also reduced.
  • the method before the access network device sends the configuration information of the SPS information to the terminal device, the method further includes:
  • the access network device configures SPS information by using SC-MCCH control information or an SIB, where the SIB includes scheduling information of service data of the SC-PTM service, and the SC-MCCH control information includes scheduling of service data of the SC-PTM service.
  • the scheduling information of the service data of the SC-PTM service is used to schedule service data of the SC-PTM service carried on the SC-MTCH.
  • the existing scheduling information of the service data of the SC-PTM service exists in the existing SC-MCCH control information, and the field of the scheduling information corresponding to the service data of the SC-PTM service is added to the SIB 20, so that the SPS information can be configured through the SC.
  • the configuration information further includes SPS activation or deactivation information, and the SPS is activated or deactivated.
  • the information is used to indicate activation or deactivation of the SPS information.
  • the configuration information sent by the access network device to the terminal device further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information, so that the terminal device is configured according to the
  • the SPS activation and de-excitation information knows the time when the SPS is activated and the time when the SPS is deactivated.
  • the control information on the PDCCH is not received within the SPS activation. After the SPS is deactivated, the dynamic scheduling is started, so that the terminal device can more accurately know the SPS activation and go. The state of activation.
  • the method further includes:
  • the access network device sends SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in a DCI of a PDCCH bearer scrambled by an SC-MCCH scheduling identifier, and the SPS is activated or deactivated.
  • the information is used to indicate activation or deactivation of the SPS information.
  • the SPS Before or after the configuration information sent by the access network device to the terminal device, the SPS is required to send the SPS activation or deactivation information to the terminal device, and the SPS activation or deactivation information is carried in the PDCCH of the SC-MCCH scheduling identifier scrambled.
  • the terminal device After acquiring the DCI, the terminal device makes the terminal device know the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, does not receive the control information on the PDCCH within the SPS activation, and starts to dynamic after the SPS is deactivated. Scheduling, so that the terminal device can more accurately know the state of SPS activation and deactivation.
  • the control information is carried in an SC-MCCH
  • the service data is carried in an SC-MTCH.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • a second aspect of the present invention provides a multicast data scheduling method, including:
  • the terminal device receives configuration information of the SPS information sent by the access network device, where the SPS information is used to schedule target data that is carried on the PDSCH, where the target data is control information or service data of the SC-PTM service;
  • the terminal device receives the target data sent by the access network device according to the configuration information.
  • the terminal device can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the received configuration information sent by the access network device, and does not need a dynamic PDCCH to schedule.
  • the target data is business data of the SC-PTM service
  • the terminal device can know the resources occupied by the service data of the SC-PTM service on the PDSCH according to the configuration information, and does not need a dynamic PDCCH to schedule. Therefore, the number of control information on the PDCCH is reduced, and the consumption of the PDCCH resource is reduced. And reduce the power consumption of the terminal device.
  • the target data is control information of an SC-PTM service, where the configuration information includes a first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication.
  • the first SPS period information is a modification period of the control information, a repetition period of the control information, a multiple of a modification period of the control information, or a multiple of a repetition period of the control information.
  • the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the SPS information. Applicable narrow band.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Business data for the SC-PTM business If the target data is the control information of the SC-PTM service, since the SC-MCCH is mapped to the PDSCH, the control information of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the first SPS period information, the number of repetitions, and the scheduling identifier.
  • the first SPS period information is at least one of a modification period of the control information of the SC-PTM service, a repetition period of the control information, a multiple of the modification period of the control information, or a multiple of the repetition period of the control information
  • the number of repetitions is the number of repeated transmissions of the control information.
  • the scheduling identifier is specifically an SC-RNTI, which is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the control information of the SC-PTM service can be received according to the configuration information, and the scheduling information of the control information of the SC-PTM service is not required to be sent on the PDCCH in each period of the access network device, thereby saving the PDCCH resources and the functions of the terminal device. The consumption is also reduced.
  • the target data is service data of an SC-PTM service
  • the configuration information includes a second SPS period information, a correspondence relationship, a repetition quantity, and a scheduling identifier.
  • the SPS period information is a period in which the service data is repeatedly sent, and the correspondence is used to indicate an SC-PTM service to which the SPS information is applicable, where the number of repetitions is the service The number of repeated transmissions of data
  • the scheduling identifier is used for scrambling A PDCCH carrying the SPS information, the narrowband indicating a narrowband for indicating that the SPS information is applicable.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Business data for the SC-PTM business If the target data is the service data of the SC-PTM service, the SC-MTCH is mapped to the PDSCH, so the service data of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the second SPS period information, the correspondence relationship, and the number of repetitions.
  • the SPS period information is a period in which the service data is repeatedly transmitted, and the corresponding relationship is used to indicate the SC-PTM service to which the SPS information is applicable, and the repetition number is the number of repeated transmissions of the service data, and the scheduling identifier is specific.
  • the G-RNTI is used to scramble the PDCCH carrying the SPS information.
  • the narrowband indicates the narrowband used to indicate the SPS information.
  • the configuration information further includes SPS activation or deactivation information, and the SPS is activated or deactivated.
  • the information is used to indicate activation or deactivation of the SPS information.
  • the configuration information sent by the terminal device receiving the access network device further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information, so that the terminal device knows the SPS according to the SPS activation and deactivation information.
  • the control information on the PDCCH is not received within the SPS activation, and the dynamic scheduling is started after the SPS is deactivated, so that the terminal device can more accurately know the state of the SPS activation and deactivation.
  • the method further includes:
  • the terminal device receives the SPS activation or deactivation information sent by the access network device, where the SPS activation or deactivation information is included in the downlink control information DCI of the PDCCH bearer scrambled by the SC-MCCH scheduling identifier;
  • the terminal device determines a state of SPS activation or deactivation according to the SPS activation or deactivation information.
  • the PDCCH sends the SPS activation or deactivation information to the terminal device, and the SPS activates or deactivates the information in the DCI of the PDCCH that is scrambled with the SC-MCCH scheduling identifier.
  • the terminal device After the terminal device acquires the DCI, the terminal device activates and deactivates according to the SPS.
  • the information knows the time when the SPS is activated and the time when the SPS is deactivated.
  • the control information on the PDCCH is not received within the SPS activation. After the SPS is not activated, the dynamic scheduling is started, so that the terminal device can more accurately know the state of the SPS activation and deactivation.
  • control information is carried in the SC-MCCH
  • service data is carried in the single cell multicast service channel SC-MTCH.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Data information of the SC-PTM service there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Data information of the SC-PTM service Data information of the SC-PTM service.
  • a third aspect of the present invention provides an access network device, including: a processor, a transceiver, and a memory, where the memory can be used to store code executed by the processor;
  • the transceiver is configured to send configuration information of the semi-persistent scheduling SPS information to the terminal device, where the SPS information is used to schedule target data that is carried on the physical downlink shared channel PDSCH, where the target data is a single-cell point-to-multipoint Transmitting control information or service data of the SC-PTM service;
  • the transceiver is further configured to send the target data to the terminal device according to the configuration information.
  • the SC-PTM technology can implement the technical features of the same multicast data that the access network device sends the same multicast data to multiple terminal devices in a single cell.
  • the SPS technology is adopted, and the SPS technology allows the access network device to semi-statically configure the wireless resources (which can be called SPS resources). ) and periodically assign SPS resources to a specific terminal device.
  • the processor needs to configure the SPS information.
  • the target data is the control information or the service data of the SC-PTM service.
  • the transceiver sends the configuration information of the SPS information to the terminal device, so that the terminal device is configured according to the configuration. The information can receive the target data.
  • the terminal device can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the configuration information, and does not need a dynamic PDCCH to schedule;
  • the target data is the service data of the SC-PTM service, and the terminal device can know the SC-PTM according to the configuration information.
  • the resources occupied by the service data of the service on the PDSCH do not need to be scheduled by the dynamic PDCCH. Therefore, the number of control information on the PDCCH is reduced, the consumption of the PDCCH resources is reduced, and the power consumption of the terminal device is reduced.
  • the target data is control information of an SC-PTM service, where the configuration information includes a first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication.
  • At least one of the first SPS period information is a modification period of the control information, a repetition period of the control information, a multiple of a modification period of the control information, or a multiple of a repetition period of the control information.
  • At least one of the repetition times is a number of repeated transmissions of the control information
  • the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the SPS information. Applicable narrow band.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Data information of the SC-PTM service If the target data is the control information of the SC-PTM service, since the SC-MCCH is mapped to the PDSCH, the control information of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the first SPS period information, the number of repetitions, and the scheduling identifier.
  • the first SPS period information is at least one of a modification period of the control information of the SC-PTM service, a repetition period of the control information, a multiple of the modification period of the control information, or a multiple of the repetition period of the control information
  • the number of repetitions is the number of repeated transmissions of the control information.
  • the scheduling identifier is specifically an SC-RNTI, which is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the control information of the SC-PTM service can be received according to the configuration information, and the scheduling information of the control information of the SC-PTM service is not required to be sent on the PDSCH every period of the access network device, thereby saving the PDCCH resources and the functions of the terminal device. The consumption is also reduced.
  • the processor is configured to configure SPS information by using a system information block SIB, where the SIB includes configuration information of a single cell multicast control channel SC-MCCH control information, where configuration information of the SC-MCCH control information is used for scheduling Control information of the SC-PTM service on the SC-MCCH.
  • SIB includes configuration information of a single cell multicast control channel SC-MCCH control information
  • configuration information of the SC-MCCH control information is used for scheduling Control information of the SC-PTM service on the SC-MCCH.
  • the target data is service data of an SC-PTM service
  • the configuration information includes a second SPS period information, a correspondence relationship, At least one of a repetition number, a scheduling identifier, and a narrowband indication, wherein the SPS period information is a period in which the service data is repeatedly sent, and the correspondence is used to indicate an SC-PTM service to which the SPS information is applicable, the repetition The number of times is the number of repeated transmissions of the service data, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indicates a narrowband used to indicate that the SPS information is applicable.
  • the configuration information includes at least one of a second SPS period information, a correspondence relationship, a repetition number, a scheduling identifier, and a narrowband indication, where the SPS period information is a period in which the service data is repeatedly transmitted, and the correspondence relationship is used to indicate the SC-PTM service to which the SPS information is applicable.
  • the number of repetitions is the number of repeated transmissions of the service data.
  • the scheduling identifier is specifically a G-RNTI, which is used to scramble the PDCCH carrying the SPS information, and the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the information can receive the service data of the SC-PTM service, and the access network device does not need to send the scheduling information of the service data of the SC-PTM service on the PDCCH every cycle, thereby saving the PDCCH resource and the power consumption of the terminal device. Reduced.
  • the processor is configured to configure SPS information by using SC-MCCH control information or an SIB, where the SIB includes scheduling information of service data of an SC-PTM service, where the SC-MCCH control information includes a service of the SC-PTM service
  • the scheduling information of the data, the scheduling information of the service data of the SC-PTM service is used to schedule the service data of the SC-PTM service carried on the single-cell multicast service channel SC-MTCH.
  • the configuration information further includes SPS activation or deactivation information, and the SPS is activated or deactivated.
  • the information is used to indicate activation or deactivation of the SPS information.
  • the configuration information sent by the transceiver to the terminal device further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information, so that the terminal device knows the SPS activation according to the SPS activation and deactivation information.
  • the control information on the PDCCH is not received within the SPS activation, and the dynamic scheduling is started after the SPS is deactivated, so that the terminal device can more accurately know the state of the SPS activation and deactivation.
  • the transceiver is further configured to send SPS activation or deactivation information to the terminal device, where the SPS The activation or deactivation information is included in the downlink control information DCI of the PDCCH bearer scrambled by the SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.
  • the transceiver Before or after the configuration information sent by the transceiver to the terminal device, the transceiver also needs to send SPS activation or deactivation information to the terminal device through the PDSCH, and the SPS activates or deactivates the PDCCH of the information bearer and the SC-MCCH scheduling identifier scrambled.
  • the terminal device After acquiring the DCI, the terminal device makes the terminal device know the SPS activation time and the SPS deactivation time according to the SPS activation and de-excitation information, does not receive the control information on the PDCCH within the SPS activation, and starts to dynamic after the SPS is not activated. Scheduling, so that the terminal device can more accurately know the state of SPS activation and deactivation.
  • control information is carried in the SC-MCCH
  • service data is carried in the SC-MTCH
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • a fourth aspect of the present invention provides a terminal device, including: a processor, a receiver, a transmitter, an antenna, and a memory, where the memory can be used to store code executed by the processor;
  • a receiver configured to receive configuration information of semi-persistent scheduling SPS information sent by an access network device, where the SPS information is used to schedule target data that is carried on a physical downlink shared channel PDSCH, where the target data is a single-cell point-to-multiple Point transmission of control information or service data of the SC-PTM service;
  • a receiver configured to receive the target data sent by the access network device according to the configuration information.
  • the receiver can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the received configuration information sent by the access network device, and does not need to Dynamic PDCCH scheduling; if the target data received by the receiver is the service data of the SC-PTM service, according to the received configuration information, the resource occupied by the service data of the SC-PTM service on the PDSCH can be known, and dynamic PDCCH to adjust Degree, therefore, the number of control information on the PDCCH is reduced, the consumption of PDCCH resources is reduced, and the power consumption of the terminal device is reduced.
  • the target data is control information of an SC-PTM service, where the configuration information includes a first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication.
  • At least one of the first SPS period information is a modification period of the control information, a repetition period of the control information, a multiple of a modification period of the control information, or a multiple of a repetition period of the control information.
  • At least one of the repetition times is a number of repeated transmissions of the control information
  • the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the SPS information. Applicable narrow band.
  • the configuration information received by the receiver includes at least one of a first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication, where the first SPS period information is a modification period of the control information of the SC-PTM service, a repetition period of the control information, At least one of a multiple of the modification period of the control information or a multiple of the repetition period of the control information, the repetition number is the number of repeated transmissions of the control information, and the scheduling identifier is specifically an SC-RNTI, which is used to scramble the PDCCH carrying the SPS information, and the narrowband Indicates a narrowband for indicating that the SPS information is applicable.
  • the first SPS period information is a modification period of the control information of the SC-PTM service
  • a repetition period of the control information At least one of a multiple of the modification period of the control information or a multiple of the repetition period of the control information
  • the repetition number is the number of repeated transmissions of the control information
  • the scheduling identifier is specifically
  • the receiver After receiving the configuration information, the receiver can receive the control information of the SC-PTM service according to the configuration information, and does not need to access the network device to send the SC on the PDCCH every cycle.
  • the scheduling information of the control information of the PTM service therefore, the PDCCH resources are saved, and the power consumption of the terminal device is also reduced.
  • the target data is service data of an SC-PTM service
  • the configuration information includes a second SPS period information, a correspondence relationship, a repetition quantity, and a scheduling identifier.
  • the SPS period information is a period in which the service data is repeatedly sent
  • the correspondence is used to indicate an SC-PTM service to which the SPS information is applicable, where the number of repetitions is the service The number of repeated transmissions of data
  • the scheduling identifier is used to scramble a PDCCH carrying the SPS information
  • the narrowband indicates a narrowband used to indicate that the SPS information is applicable.
  • the configuration information received by the receiver includes at least one of a second SPS period information, a correspondence relationship, a repetition number, a scheduling identifier, and a narrowband indication, where the SPS period information is a period in which the service data is repeatedly transmitted, and the correspondence relationship is used to indicate that the SPS information is applicable.
  • the number of repetitions is the number of repeated transmissions of the service data
  • the scheduling identifier is specifically G-RNTI, which is used to scramble the PDCCH carrying the SPS information
  • the narrowband Indicates a narrowband for indicating that the SPS information is applicable.
  • the receiver After receiving the configuration information, the receiver can receive the service data of the SC-PTM service according to the configuration information, and does not need to access the network device to send the SC on the PDCCH every cycle.
  • the scheduling information of the service data of the PTM service therefore, the PDCCH resources are saved, and the power consumption of the terminal device is also reduced.
  • the configuration information further includes SPS activation or deactivation information, and the SPS is activated or deactivated.
  • the information is used to indicate activation or deactivation of the SPS information.
  • the receiver is further configured to receive SPS activation or deactivation information sent by the access network device, where the SPS activation or deactivation information is included in a DCI carried by a PDCCH that is scrambled by an SC-MCCH scheduling identifier;
  • a processor configured to determine a state of SPS activation or deactivation according to SPS activation or deactivation information.
  • the receiver Before or after the receiver receives the configuration information sent by the access network device, the receiver also needs to send the SPS activation or deactivation information to the terminal device through the PDCCH, and the SPS activates or deactivates the information bearer and the SC-MCCH scheduling identifier to be scrambled.
  • the terminal device After acquiring the DCI, the terminal device makes the receiver know the SPS activation time and the SPS deactivation time according to the SPS activation and de-excitation information, and does not receive the control information on the PDCCH within the SPS activation, after the SPS is deactivated.
  • the dynamic scheduling is started, so that the terminal device can more accurately know the state of SPS activation and deactivation.
  • control information is carried in the SC-MCCH
  • service data is carried in the single cell multicast service channel SC-MTCH.
  • SC-PTM there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Data information of the SC-PTM service there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to the PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service, and the SC-MTCH is used for transmission.
  • Data information of the SC-PTM service Data information of the SC-PTM service.
  • a fifth aspect of the present invention provides an access network device, including:
  • a sending module configured to send, to the terminal device, configuration information of the SPS information, where the SPS information is used to schedule target data carried on the PDSCH, where the target data is a control signal of the SC-PTM service Information or business data;
  • the sending module is further configured to send the target data to the terminal device according to the configuration information.
  • the SC-PTM technology can implement the technical features of the same multicast data that the access network device sends the same multicast data to multiple terminal devices in a single cell.
  • the SPS technology is adopted, and the SPS technology allows the access network device to semi-statically configure the wireless resources (which can be called SPS resources). ) and periodically assign SPS resources to a specific terminal device.
  • the sending module Before sending the target data, the sending module needs to configure the SPS information.
  • the target data is the control information or the service data of the SC-PTM service.
  • the transceiver sends the configuration information of the SPS information to the terminal device, so that the terminal device can Receiving the target data, if the target data is the control information of the SC-PTM service, the terminal device can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the configuration information, and does not need a dynamic PDCCH to schedule; if the target data It is the service data of the SC-PTM service.
  • the terminal device can know the resources occupied by the service data of the SC-PTM service on the PDSCH according to the configuration information, and does not need dynamic PDCCH scheduling, thereby reducing the number of control information on the PDCCH.
  • the consumption of PDCCH resources is reduced, and the power consumption of the terminal device is reduced.
  • the access network device further includes: a processing module
  • the processing module is configured to configure SPS information by using an SIB, where the SIB includes configuration information of the SC-MCCH control information, where the configuration information of the SC-MCCH control information is used to schedule the SC-PTM service carried on the SC-MCCH Control information.
  • the processing module is configured to configure SPS information by using SC-MCCH control information or an SIB, where the SIB includes scheduling information of service data of an SC-PTM service, where the SC-MCCH control information includes a service of the SC-PTM service
  • the scheduling information of the data, the scheduling information of the service data of the SC-PTM service is used to schedule the service data of the SC-PTM service carried on the single-cell multicast service channel SC-MTCH.
  • the transceiver is further configured to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in a DCI of a PDCCH carried by the SC-MCCH scheduling identifier.
  • the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.
  • a sixth aspect of the present invention provides a terminal device, including:
  • a receiving module configured to receive configuration information of the SPS information sent by the access network device, where the SPS information is used to schedule target data that is carried on the PDSCH, where the target data is control information or service data of the SC-PTM service;
  • the receiving module is further configured to receive the target data sent by the access network device according to the configuration information.
  • the receiving module can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the received configuration information sent by the access network device, and does not need to The dynamic PDCCH is scheduled. If the target data received by the receiving module is the service data of the SC-PTM service, the resource occupied by the service data of the SC-PTM service on the PDSCH can be known according to the received configuration information, and does not need to be dynamic. The PDCCH is scheduled, and therefore, the number of control information on the PDCCH is reduced, the consumption of the PDCCH resources is reduced, and the power consumption of the terminal device is reduced.
  • the terminal device further includes: a processing module
  • the receiving module is further configured to receive SPS activation or deactivation information sent by the access network device, where the SPS activation or deactivation information is included in a DCI carried by a PDCCH that is scrambled by an SC-MCCH scheduling identifier;
  • the processing module is configured to determine a state of SPS activation or deactivation according to the SPS activation or deactivation information.
  • the access network device Before or after the receiving module receives the configuration information sent by the access network device, the access network device also needs to send the SPS activation or deactivation information to the terminal device through the PDCCH, and the SPS activates or deactivates the information bearer and the SC-MCCH scheduling identifier.
  • the processing module knows the SPS activation time and the SPS deactivation time according to the SPS activation and de-excitation information, and does not receive the control information on the PDCCH within the SPS activation, and the SPS is deactivated. Dynamic scheduling is then started, so that the terminal device can more accurately know the state of SPS activation and deactivation.
  • FIG. 1 is a schematic diagram of an application scenario or a framework provided by the present application
  • FIG. 2 is a schematic diagram of a system frame of an SC-MCCH provided by the present application.
  • FIG. 3 is a schematic diagram of a subframe position of an SC-MCCH provided by the present application.
  • FIG. 4 is a schematic diagram of the MP of the SC-MCCH provided by the present application being 48;
  • FIG. 5 is a schematic diagram of an RP of an SC-MCCH provided by the present application.
  • FIG. 6 is a schematic diagram of an SPS configuration provided by the present application.
  • FIG. 7 is a signaling flowchart of an embodiment of a multicast data scheduling method provided by the present application.
  • FIG. 8 is a signaling flowchart of another embodiment of a multicast data scheduling method provided by the present application.
  • FIG. 9 is a schematic structural diagram of an embodiment of an access network device provided by the present application.
  • FIG. 10 is a schematic structural diagram of an embodiment of a terminal device provided by the present application.
  • FIG. 11 is a schematic structural diagram of still another embodiment of an access network device provided by the present application.
  • FIG. 12 is a schematic structural diagram of still another embodiment of a terminal device provided by the present application.
  • the present invention provides a multicast data scheduling method, a terminal device, and an access network device, which are used to apply the SPS technology to an LTE-MTC communication system, so as to save radio resources and reduce power consumption of the terminal device.
  • the present invention is applied to a wireless communication network system, and can be applied to an LTE-MTC system.
  • an access network device is connected to a core network, and adopts SC-PTM technology, and a cell covered by an access network device includes N terminals.
  • Device a group of terminal devices receiving the same SC-PTM service use the same downlink configuration For SC-PTM service reception, the access network device does not have to establish a communication link with each terminal device.
  • the access network device may be a network device of a cell, and may be a base station in a cell level sense or a network device having a function similar to a base station, such as a wireless router and an access point (AP).
  • the access network device may be a network device that provides wireless access and communication services for mobile devices that are mobile or stationary within the cell.
  • the terminal device can be a mobile phone, a smart terminal, a multimedia device, a streaming media device, and an MTC terminal device.
  • the SC-PTM technology is a technology that simultaneously transmits the same SC-PTM service to multiple terminal devices by using shared time-frequency resources, and uses a group of terminal devices that receive the same SC-PTM service.
  • the same downlink configuration is used for SC-PTM service reception, and it is not necessary to establish its own communication link for each UE.
  • the SC-PTM has a control channel SC-MCCH and a data channel SC-MTCH, both of which are mapped to the physical downlink shared channel PDSCH, wherein the SC-MCCH contains control information of the SC-PTM service, SC-MTCH Used to transmit business data of SC-PTM services.
  • the control information of the SC-PTM service is sent periodically.
  • the SC-MCCH period has a Repetition Period (RP) and a Modification Period (MP), and the control information of the SC-PTM service is sent once in each repetition period.
  • the modification period includes several repetition periods and the content of the control information of the SC-PTM service in the modification period does not change.
  • a cell simultaneously schedules SC-MTCH service data of an SC-PTM service to a plurality of terminal devices through G-RNTI (which can be understood as an identifier of SC-MTCH scheduling information), and each G-RNTI can be associated with each other.
  • G-RNTI which can be understood as an identifier of SC-MTCH scheduling information
  • An SC-PTM service such as a software upgrade service.
  • the terminal device acquires the SIB from the access network device
  • SIB3 includes parameters for cell selection and reselection
  • SIB20 includes configuration information of control information for transmitting SC-PTM services, that is, configuration information of SC-MCCH. Since the SC-MCCH is mapped to the PDSCH, the control information on the PDCCH is required for scheduling.
  • the control information is scrambled by the SC-RNTI (which can be understood as the identifier of the SC-MCCH scheduling information), and the terminal device passes
  • the configuration information of the SC-MCCH can be used to know how to receive the SC-MCCH control information of the SC-PTM service.
  • the PDCCH control information and the SC-MCCH control information are sent in the same subframe.
  • SIB20 is as follows:
  • the SIB20 specifically includes:
  • the SC-MCCH transmission time indicates the SC-MCCH transmission duration
  • the SC-MCCH start position indicates the SC-MCCH transmission duration
  • the detailed SC-MCCH configuration is shown in Figure 5.
  • the SC-MCCH is repeatedly transmitted in each MP.
  • the repetition period is RP.
  • the content of the SC-MCCH is the same.
  • the SC-MCCH change Notification when the terminal device detects the SC-N-RNTI on the PDCCH (which can be understood as the identifier of the modification notification), that is, it is considered that the modification notification is detected, and the terminal device reacquires the SC-MCCH.
  • the terminal device needs to detect the PDCCH control information scrambled by the SC-RNTI (which can be understood as the identifier of the SC-MCCH scheduling information) to obtain the SC-MCCH scheduling information.
  • the terminal device receives, according to the configuration information in the SIB20, PDCCH control information (referred to as first PDCCH control information) scrambled by the SC-RNTI (which can be understood as an identifier of the SC-MCCH scheduling information);
  • PDCCH control information referred to as first PDCCH control information
  • SC-RNTI which can be understood as an identifier of the SC-MCCH scheduling information
  • the terminal device can know the SC-MCCH scheduling information according to the first PDCCH control information, and the SC-MCCH scheduling information is the scheduling information for sending the SC-MCCH control information, and can receive the SC-MCCH control information according to the SC-MCCH scheduling information, SC -MCCH control information content is as follows:
  • the SC-MCCH control information specifically includes: an identifier of the SC-PTM service MBMSSessionInfo (TMGI, Session ID), an identifier G-RNTI for receiving SC-MTCH scheduling information (here, BIT STRING (SIZE (16))), and reception The time information sc-mtch-schedulingInfo of the SC-MTCH service data. Since the SC-MTCH is also mapped to the PDSCH, one PDCCH control information is required for scheduling, and this PDCCH control information is scrambled by the G-RNTI (which can be understood as the identifier of the SC-MTCH scheduling information).
  • the terminal device receives the G-RNTI according to the SC-MCCH control information (can be understood as SC-MTCH)
  • SC-MTCH SC-MTCH
  • the identifier of the scheduling information is scrambled PDCCH control information (referred to as second PDCCH control information).
  • the terminal device obtains SC-MTCH scheduling information according to the second PDCCH control information, where the SC-MTCH scheduling information is scheduling information of the SC-MTCH service data of the SC-PTM service, and the SC-MTCH is known according to the scheduling information of the SC-MTCH service data.
  • the terminal device receives the SC-PTM service data through the above five steps.
  • it is necessary to repeatedly transmit the control information of the SIB20, the first PDCCH, the second PDCCH, and the SC-PTM service, and the service data of the SC-PTM service, and the SC-PTM service control information SC-PTM service.
  • the scheduling of the service data needs to be implemented by the control information on the PDCCH, and consumes a large amount of PDCCH resources, and the terminal equipment of the SC-PTM generally works on a narrowband, and the PDCCH resources are relatively limited, and the terminal equipment needs to receive. Increased control information also increases receive power consumption.
  • the Semi-Persist Scheduling (SPS) technology has the characteristics of “one-time allocation, multiple use”, it is not necessary to send Downlink Control Information (DCI) to the terminal device in each subframe.
  • DCI Downlink Control Information
  • a terminal device configured with SPS scheduling can perform dynamic scheduling at the same time, so it is necessary to distinguish whether the PDCCH control information is used for dynamic scheduling or SPS scheduling. Therefore, the terminal device configured with SPS scheduling has two identifiers: one normal C-RNTI for dynamic scheduling, and the other SPS-C-RNTI for SPS scheduling, through radio resource control (Radio Resource Control, RRC). ) The message is configured.
  • RRC Radio Resource Control
  • the terminal device For the downlink SPS, if the downlink SPS is configured and activated, the terminal device considers that the SPS downlink resource is allocated in the subframe (referred to as the SPS subframe) that satisfies the following formula (in this case, the PDCCH control information does not need to be received):
  • (10 ⁇ SFN+subframe) [(10 ⁇ SFN start time +subframe start time )+N ⁇ semiPersistSchedulingIntervalDL]modulo 10240;
  • the SFN start time and the subframe start time are system frame numbers and subframe numbers of the PDCCH that the UE receives the downlink SPS activation.
  • the modulo 10240 is used because the system frame is represented by 10 bits, and the value ranges from 0 to 1023. It needs to be inverted every 1024 system frames.
  • the semiPersistSchedulingIntervalDL is used to indicate that the terminal device is allocated SPS resources once every semiPersistScheduling Interval DL subframes, that is, the SPS period. As shown in FIG.
  • the access network device is directed to a specific terminal device, which does not satisfy the SC-PTM scenario of the LTE-MTC communication system, and has many terminal devices and different coverage levels.
  • a multicast data scheduling method for interaction between an access network device and a terminal device in the above system architecture or scenario will be described below by way of an embodiment.
  • an embodiment of the present invention provides a multicast data scheduling method, including:
  • the access network device sends configuration information of the SPS information to the terminal device, where the terminal device receives configuration information of the SPS information sent by the access network device.
  • the access network device needs to pre-configure the SPS information, the SPS information, in order to implement the same target data to the MTC-type terminal device whose coverage area is the target data, and the target data is the control information or the service data of the SC-PTM service.
  • the terminal device receives the target data that is carried on the PDSCH, and the terminal device receives the configuration information of the SPS information sent by the access network device. Since the SPS information is used to schedule the target data that is carried on the PDSCH, the terminal device can know through the configuration information. How the network access device configures the SPS information to know how the target data carried on the PDSCH is scheduled.
  • the access network device sends the target data to the terminal device according to the configuration information, where the terminal device receives the target data sent by the access network device according to the configuration information.
  • the access network device schedules the target data carried on the PDSCH according to the configuration information, and sends the target data to the terminal device.
  • the terminal device After the terminal device obtains the configuration information, the terminal device passes the configuration information.
  • the configuration information can know how the access network device configures the SPS information, knows how the target data is scheduled, and then receives the target data sent by the access network device.
  • the SC-PTM service indicated by the SPS information is periodically and repeatedly sent.
  • the SPS information needs to be configured first, and the target data is SC.
  • the configuration information of the SPS information is sent to the terminal device, so that the terminal device can obtain the target data according to the configuration information.
  • the terminal device If the target data is the control information of the SC-PTM service, the terminal device according to the configuration information It is possible to know the resources occupied by the control information of the SC-PTM service on the PDSCH, and do not need a dynamic PDCCH to adjust If the target data is the service data of the SC-PTM service, the terminal device can know the resources occupied by the service data of the SC-PTM service on the PDSCH according to the configuration information, and does not need dynamic PDCCH scheduling, thus reducing the PDCCH.
  • the amount of control information reduces the consumption of PDCCH resources and reduces the power consumption of the terminal device.
  • the target data is the control information of the SC-PTM service
  • the configuration information includes at least one of the first SPS period information, the number of repetitions, the scheduling identifier, and the narrowband indication, where the first SPS period information is a modification period of the control information, and the control information is repeated.
  • the repetition number is a number of repeated transmissions of the control information
  • the scheduling identifier is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate Narrowband for SPS information
  • the target data is the service data of the SC-PTM service
  • the configuration information includes at least one of the second SPS period information, the correspondence relationship, the repetition number, the scheduling identifier, and the narrowband indication
  • the SPS period information is a period in which the service data is repeatedly transmitted, and the corresponding relationship
  • the SC-PTM service is used to indicate that the SPS information is applicable
  • the repetition number is the number of repeated transmissions of the service data
  • the scheduling identifier is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the target data in the foregoing embodiment may be classified into two types: control information of the SC-PTM service and service data of the SC-PTM service.
  • the existing SIB20 includes the configuration information of the SC-MCCH control information.
  • the existing SC-MCCH control information includes the configuration information of the service data transmission of the SC-MTCH.
  • the target data is the control information of the SC-PTM service
  • the configuration information of the SPS information is configured by the SC-MCCH control information or the SIB (SIB20).
  • the configuration information of the SPS information is configured by the SIB (SIB20);
  • mode one use the MP of the control information in the SIB20 as the first SPS cycle
  • mode two the first SPS cycle is a positive integer multiple of the MP, that is, several MPs are a first SPS cycle
  • the RP that uses the control information in the SIB20 is used as the first SPS period.
  • the fourth SPS period is a positive integer multiple of the RP, that is, several RPs are a first SPS period.
  • the first SPS period can also be set according to requirements.
  • An SPS cycle is not limited.
  • the access network device when configuring the number of repetitions, the access network device can select SPS modes with different repetition times according to different coverage levels.
  • the configuration manner in which the number of repetitions can constitute a plurality of sets, and the association table of the configuration manner of the SPS mode in which the comprehensive coverage level is selected with different repetition times is as shown in Table 1 below.
  • the PDCCH carrying the SPS information is scrambled by the SC-RNTI.
  • the PDCCH may also be a PDCCH used by the MTC terminal, that is, the MPDCCH, so that the terminal detects the PDCCH with the SC-RNTI scrambled when detecting the PDCCH.
  • the SPS information can be obtained through this PDCCH resource.
  • a new SPS-SC-RNTI is introduced for scrambling the PDCCH carrying the SPS information.
  • the access network device may select a configuration mode with different SPS modes according to different narrowband information, as shown in Table 2.
  • SPS mode configuration Narrowband information
  • SPS mode 1 Narrow band 1
  • the configuration information of the SPS information is configured by the SC-MCCH control information or the SIB (SIB20).
  • the existing SC-MCCH control information includes the configuration information of the SC-PTM service data, and the SIB20 only includes the configuration information of the SC-MCCH control information, but the SC-PTM service can be added by adding or modifying the field in the SIB20.
  • the configuration information of the data is set in the SIB20, and the configuration information of the SPS information configured by the SC-MCCH control information or the SIB (SIB20) includes:
  • mode one using the repeated transmission interval (period) of the service data as the second SPS period
  • mode two the second SPS period is a multiple of the repeated transmission interval (period) of the service data.
  • the service ID of the SC-PTM service is generally G-RNTI, as shown in Table 3.
  • SPS mode configuration Business identifier SPS mode 1 G-RNTI 1 Do not configure SPS mode G-RNTI 2 SPS mode 2 G-RNTI 3 SPS mode 3 G-RNTI 4
  • the PDCCH carrying the SPS information is scrambled by the G-RNTI, so that when detecting the PDCCH, the terminal detects that the PDCCH with the G-RNTI is scrambled, and the SPS information can be obtained through the PDCCH resource.
  • a new SPS-G-RNTI is introduced for scrambling the PDCCH carrying the SPS information.
  • the configuration information and the configuration SPS information are described.
  • the access network device also needs to send SPS activation or deactivation information.
  • the first way is The SPS activation or deactivation information is included in the configuration information, and the second method is not included in the configuration information.
  • the first method is easy to implement, and no need to be explained.
  • the second method is specifically as follows:
  • an embodiment of the present invention provides a multicast data scheduling method, including:
  • the access network device sends configuration information of the SPS information to the terminal device, where the terminal device receives configuration information of the SPS information sent by the access network device.
  • step 701 in FIG. 7 Please refer to step 701 in FIG. 7 for details.
  • the access network device sends SPS activation or deactivation information to the terminal device, where the terminal device receives the SPS activation or deactivation information sent by the access network device.
  • the access network device also needs to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in the DCI of the PDCCH carried by the SPS-SC-RNTI (or SC-RNTI) scrambling.
  • the terminal device can know the SPS or dynamic scheduling when to start or when to end according to the SPS activation or deactivation information.
  • the access network device sends the target data to the terminal device according to the configuration information, and the terminal device receives the target data sent by the access network device according to the configuration information.
  • the access network device schedules the target data carried on the PDSCH according to the configuration information, and sends the target data to the terminal device.
  • the terminal device After the terminal device obtains the configuration information, the terminal device passes the configuration information.
  • the configuration information and the SPS activation or deactivation information in step 802 can be integrated to know how the access network device configures the SPS information, knows how the target data is scheduled, and thus receives the target data transmitted by the access network device.
  • the access network device sends the SPS activation or deactivation information to the terminal device, so that the terminal device can receive the target data more accurately.
  • step 802 may also be before step 801, or may be after step 801, but must be before step 803.
  • the main configuration of the SPS activation or deactivation information is required.
  • the mode is as follows: mode 1: the PDCCH of the bearer is scrambled by the SPS-SC-RNTI, and the SPS activation or deactivation information is carried in the PDCCH.
  • the second method is to scramble the PDCCH of the bearer by using the SC-RNTI, and the SPS is performed.
  • the activation or deactivation information is carried in the PDCCH.
  • the access network device may also send the SPS activation re-sending information to the terminal device, and the SPS activates the re-sending information, that is, the configuration information of the PDCCH control information after the SPS is activated, and the access network device is not considered after the SPS is activated.
  • the PDCCH control information is sent again. If the terminal device is interested in the SC-PTM service at this time, it cannot be received. In this case, it is necessary to supplement and send some PDCCH control information during the SPS activation period to indicate that the terminal device receives the PDCCH at a specific moment.
  • the terminal device can detect the PDCCH at a time when the access network device does not transmit the PDCCH control signal to reduce power consumption.
  • the specific configuration includes: mode 1: configuring a period of re-issuing the PDCCH control signal, where the configuration of the period may have four modes of configuring the SPS period, and the terminal device according to the MP or RP and the offset information configured in the SIB20, that is, The location of the PDCCH control signal may be calculated.
  • the second method is configured to configure the offset information of the PDCCH control information.
  • the offset information may be relative to the PDCCH that activates the SPS resource, and the offset information may be a specific sub- The number of frames, the number of system frames, several times the MP, or several times the RP.
  • the foregoing embodiment describes the multicast data scheduling method.
  • the following embodiments respectively describe the access network device and the terminal device.
  • an embodiment of the present invention provides an access network device 900, including: a processor 901, a transceiver 902, and a memory 903.
  • the memory 903 can be used to store code executed by the processor 901.
  • the transceiver 902 is configured to send configuration information of the SPS information to the terminal device, where the SPS information is used to schedule target data carried on the PDSCH, where the target data is control information or service data of the single-cell point-to-multipoint transmission SC-PTM service;
  • the transceiver 902 is configured to send target data to the terminal device according to the configuration information.
  • the terminal device can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the configuration information sent by the transceiver 902. No dynamic PDCCH is required for scheduling; if the transceiver 902 needs the target data to be the service data of the SC-PTM service, the terminal device according to the configuration sent by the transceiver 902 The information can be used to know the resources occupied by the service data of the SC-PTM service on the PDSCH, and does not require dynamic PDCCH scheduling. Therefore, the number of control information on the PDCCH is reduced, the consumption of PDCCH resources is reduced, and the terminal is reduced. The power consumption of the device.
  • the target data is the control information of the SC-PTM service
  • the configuration information includes at least one of the first SPS period information, the number of repetitions, the scheduling identifier, and the narrowband indication, where the first SPS period information is a modification period of the control information, and the control information is repeated.
  • the repetition number is a number of repeated transmissions of the control information
  • the scheduling identifier is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate Narrowband for SPS information
  • the target data is the service data of the SC-PTM service
  • the configuration information includes at least one of the second SPS period information, the correspondence relationship, the repetition number, the scheduling identifier, and the narrowband indication
  • the SPS period information is a period in which the service data is repeatedly transmitted, and the corresponding relationship
  • the SC-PTM service is used to indicate that the SPS information is applicable
  • the repetition number is the number of repeated transmissions of the service data
  • the scheduling identifier is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the SC-MCCH transmits control information of the SC-PTM service.
  • the SC-MTCH is used to transmit data information of the SC-PTM service. If the target data is the control information of the SC-PTM service, since the SC-MCCH is mapped to the PDSCH, the control information of the SC-PTM service is scheduled on the PDCCH, and the configuration information includes the first SPS period information, the number of repetitions, and the scheduling identifier.
  • the first SPS period information is at least one of a modification period of the control information of the SC-PTM service, a repetition period of the control information, a multiple of the modification period of the control information, or a multiple of the repetition period of the control information
  • the number of repetitions is the number of repeated transmissions of the control information.
  • the scheduling identifier is specifically an SC-RNTI, which is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the narrowband to which the SPS information is applicable.
  • the control information of the SC-PTM service is received according to the configuration information, and the scheduling information of the control information of the SC-PTM service is not required to be sent by the transceiver 902 on the PDSCH every cycle. Therefore, the PDCCH resources are saved, and the power consumption of the terminal device is also reduced. It is.
  • the processor 901 is configured to configure SPS information by using an SIB, where the SIB includes configuration information of the SC-MCCH control information, and the configuration information of the SC-MCCH control information is used to schedule control information of the SC-PTM service that is carried on the SC-MCCH.
  • the processor 901 is configured to configure SPS information by using SC-MCCH control information or an SIB, where the SIB includes scheduling information of the service data of the SC-PTM service, and the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, SC- The scheduling information of the service data of the PTM service is used to schedule the service data of the SC-PTM service carried on the single cell multicast service channel SC-MTCH.
  • the processor 901 can easily implement the SPS information according to the SIB.
  • the scheduling information of the service data of the SC-PTM service is added to the SIB 20 due to the scheduling information of the service data of the SC-PTM service in the existing SC-MCCH control information.
  • the fields of the information therefore, enable the processor 901 to configure SPS information to be implemented by SC-MCCH control information or SIB.
  • the configuration information further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.
  • the configuration information sent by the transceiver 902 to the terminal device further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information, so that the terminal device activates according to the SPS.
  • the activation information knows the time when the SPS is activated and the time when the SPS is deactivated.
  • the control information on the PDCCH is not received within the SPS activation. After the SPS is deactivated, the dynamic scheduling is started, so that the terminal device can more accurately know the status of the SPS activation and deactivation. .
  • the transceiver 902 is further configured to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in the downlink control information DCI of the PDCCH bearer scrambled by the SC-MCCH scheduling identifier, and the SPS activates or deactivates the information. Instructs activation or deactivation of SPS information.
  • the transceiver 902 before or after the configuration information sent by the transceiver 902 to the terminal device, the transceiver 902 also needs to send SPS activation or deactivation information to the terminal device through the PDSCH, and the SPS is activated. Or deactivating the DCI of the PDCCH with the information bearer and the SC-MCCH scheduling identifier scrambled, after the terminal device acquires the DCI, the terminal device knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, and the SPS is activated. The control information on the PDCCH is not received, and the dynamic scheduling is started after the SPS is deactivated, so that the terminal device can more accurately know the state of SPS activation and deactivation.
  • an embodiment of the present invention provides a terminal device 1000, including: a processor 1001, a receiver 1002, a transmitter 1003, an antenna 1004, and a memory 1005.
  • the memory 1005 can be used to store code executed by the processor 1001. ;
  • the receiver 1002 is configured to receive configuration information of SPS information sent by the access network device, where the SPS information is used to schedule target data carried on the PDSCH, where the target data is control information of a single-cell point-to-multipoint transmission SC-PTM service or Business data;
  • the receiver 1002 is configured to receive target data sent by the access network device according to the configuration information.
  • the receiver 1002 can know the resources occupied by the control information of the SC-PTM service on the PDSCH according to the received configuration information, and does not need a dynamic PDCCH to schedule; if the target data is the service data of the SC-PTM service.
  • the receiver 1002 can know the resources occupied by the service data of the SC-PTM service on the PDSCH according to the configuration information, and does not need a dynamic PDCCH to schedule. Therefore, the number of control information on the PDCCH is reduced, and the PDCCH resources are reduced. It consumes and reduces the power consumption of the terminal device.
  • the target data is the control information of the SC-PTM service
  • the configuration information includes at least one of the first SPS period information, the number of repetitions, the scheduling identifier, and the narrowband indication, where the first SPS period information is a modification period of the control information, and the control information is repeated.
  • the repetition number is a number of repeated transmissions of the control information
  • the scheduling identifier is used to scramble the physical downlink control channel PDCCH carrying the SPS information, and the narrowband Indicating a narrow band for indicating that the SPS information is applicable;
  • the target data is the service data of the SC-PTM service
  • the configuration information includes at least one of the second SPS period information, the correspondence relationship, the number of repetitions, the scheduling identifier, and the narrowband indication, and the SPS period information is heavy.
  • the period of the retransmission service data, the correspondence is used to indicate the SC-PTM service to which the SPS information is applicable
  • the repetition number is the number of repeated transmissions of the service data
  • the scheduling identifier is used to scramble the PDCCH carrying the SPS information
  • the narrowband indication is used to indicate the SPS information. Applicable narrow band.
  • the configuration information further includes SPS activation or deactivation information, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.
  • the receiver 1002 is further configured to receive SPS activation or deactivation information sent by the access network device, where the SPS activation or deactivation information is included in the downlink control information DCI of the PDCCH bearer scrambled by the SC-MCCH scheduling identifier.
  • the processor 1001 is configured to determine a state of SPS activation or deactivation according to SPS activation or deactivation information.
  • the access network device before or after the receiver 1002 receives the configuration information sent by the access network device, the access network device needs to send the SPS activation or deactivation information to the terminal device through the PDCCH, and the SPS activates or deactivates the information bearer.
  • the terminal device After acquiring the DCI, the terminal device causes the processor 1001 to know the SPS activation time and the SPS deactivation time according to the SPS activation and de-excitation information, and does not receive the SPS activation.
  • the control information on the PDCCH is dynamically scheduled after the SPS is deactivated, so that the terminal device can more accurately know the state of the SPS activation and deactivation.
  • an embodiment of the present invention provides an access network device, including: a sending module 1101 and a processing module 1102;
  • the sending module 1101 is configured to send configuration information of the SPS information to the terminal device, where the SPS information is used to schedule target data that is carried on the PDSCH, where the target data is control information or service data of the SC-PTM service;
  • the sending module 1101 is further configured to send target data to the terminal device according to the configuration information
  • the processing module 1102 does not perform an operation, and may or may not exist.
  • the access network device further includes: a processing module 1102;
  • the processing module 1102 is configured to configure SPS information by using an SIB, where the SIB includes SC-MCCH control information.
  • the configuration information of the SC-MCCH control information is used to schedule control information of the SC-PTM service carried on the SC-MCCH.
  • the processing module 1102 is configured to configure SPS information by using SC-MCCH control information or an SIB, where the SIB includes scheduling information of the service data of the SC-PTM service, and the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, SC- The scheduling information of the service data of the PTM service is used to schedule the service data of the SC-PTM service carried on the SC-MTCH.
  • the transceiver 1101 is further configured to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in the DCI of the PDCCH bearer scrambled by the SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate the SPS. Activate or deactivate.
  • an embodiment of the present invention provides a terminal device, including:
  • the receiving module 1201 is configured to receive configuration information of SPS information sent by the access network device, where the SPS information is used to schedule target data carried on the PDSCH, where the target data is control information or service data of the SC-PTM service;
  • the receiving module 1201 is further configured to receive target data sent by the access network device according to the configuration information
  • the processing module 1202 does not perform an operation, and may or may not exist.
  • the terminal device further includes: a processing module 1202;
  • the receiving module 1201 is further configured to receive SPS activation or deactivation information sent by the access network device, where the SPS activation or deactivation information is included in a single downlink multicast control channel SC-MCCH scheduling identifier scrambled physical downlink control channel PDCCH
  • the downlink control information of the bearer is in the DCI;
  • the processing module 1202 is configured to determine a state of SPS activation or deactivation according to the SPS activation or deactivation information.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor or a digital signal processor (digital signal) Processor, DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • RAM random access memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).

Abstract

本申请公开了多播数据调度方法、终端设备及接入网设备，用于将SPS技术应用于LTE-MTC通信系统，以实现节省无线资源，降低终端设备功耗的目的。本发明实施例多播数据调度方法包括：接入网设备向终端设备发送SPS信息的配置信息，SPS信息用于调度承载在PDSCH上的目标数据，目标数据为SC-PTM业务的控制信息或业务数据；接入网设备根据配置信息向终端设备发送目标数据。

Description

多播数据调度方法、终端设备及接入网设备 技术领域
本发明涉及通信领域，具体涉及多播数据调度方法、终端设备及接入网设备。
背景技术
长期演进(Long Term Evolution，LTE)-机器类型通信(Machine Type Communication，MTC)有别于传统LTE通信，其不追求数据传输速率、多频段、多天线及全双工传输，而是追求终端设备的低功耗和低成本，此外，考虑到MTC终端设备的应用场景，例如水表和电表等，终端设备的信号覆盖强度无法满足信号接收要求，因此需要对进行覆盖增强，使接入网设备和终端设备能够支持扩展覆盖(Coverage enhancement)，目前实现扩展覆盖的主要方法是接入网设备重复多次发送数据，终端设备通过多次接收合并接入网设备发送的数据，达到提高数据接收成功率的目的，但是，大量部署的MTC终端设备在相同时间内需要接收到相同的数据时，每一个MTC终端设备都需要与接入网设备建立通信链路，基站会面临大量的终端设备连接数，从而占用大量的网络资源，对整个LTE-MTC通信系统而言是一个极大的挑战。
为了减轻LTE-MTC通信系统的网络资源的压力，现有的技术方案具体为：在现有的单小区点对多点通信(Single Cell Point To Multi-point，SC-PTM)的基础上引入重复多次发送(Repetition)，接收同一SC-PTM业务的业务数据的一组终端设备使用相同的下行配置，并且接入网设备不必和每个终端设备建立通信链路，因此，重复多次发送可以实现SC-PTM的覆盖增强，有利于终端设备接收到SC-PTM业务的业务数据。
但是，SC-PTM业务的业务数据在每一次重复发送的过程中，SC-PTM业务的控制信息也需要重复发送，由于SC-PTM业务的控制信息承载于单小区多播控制信道(Single Cell Multi-cast Control Channel，SC-MCCH)，而SC-MCCH映射到物理下行共享信道(Physical Downlink Shared Channel，PDSCH)上， PDSCH上的资源需要物理下行控制信道(Physical Downlink Control Channel，PDCCH)的控制信息来调度，因此SC-PTM业务的控制信息的发送数量增加势必会增加PDCCH资源的消耗，还使得终端设备接收的控制信息增多，增加了终端设备的功耗。
发明内容
本发明提供多播数据调度方法、终端设备及接入网设备，用于将SPS技术应用于LTE-MTC通信系统，以实现节省无线资源，降低终端设备功耗的目的。
本发明第一方面提供一种多播数据调度方法，包括：
接入网设备向终端设备发送SPS信息的配置信息，所述SPS信息用于调度承载在PDSCH上的目标数据，所述目标数据为SC-PTM业务的控制信息或业务数据；
所述接入网设备根据所述配置信息向所述终端设备发送所述目标数据。
SC-PTM技术能够在单小区中实现接入网设备向多个终端设备发送相同多播数据的技术特点，融合半静态调度(Semi-Persistent-Scheduling，SPS)技术，SPS技术允许接入网设备半静态配置无线资源(SPS资源)，并将SPS资源周期性地分配给某个(或某些)特定终端设备。接入网设备要发送目标数据之前，需要先配置好SPS信息，目标数据是SC-PTM业务的控制信息或业务数据，将配置SPS信息的配置信息发送给终端设备，使得终端设备根据配置信息可以接收到目标数据，如果目标数据是SC-PTM业务的控制信息，终端设备根据配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果目标数据是SC-PTM业务的业务数据，终端设备根据配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第一方面，本发明第一方面第一实施方式中，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所 述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。如果目标数据为SC-PTM业务的控制信息，由于SC-MCCH是映射到PDSCH上，所以SC-PTM业务的控制信息在PDCCH上进行调度，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为SC-PTM业务的控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识具体为SC-MCCH调度的标识(Single Cell Radio Network Tempory Identity，SC-RNTI)，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的控制信息，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的控制信息的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第一方面第一实施方式，本发明第一方面第二实施方式中，所述接入网设备向终端设备发送SPS信息的配置信息之前，还包括：
接入网设备通过SIB配置SPS信息，所述SIB包含SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
由于现有的SIB20中存在SC-MCCH控制信息的配置信息，而SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息，那么根据SIB配置SPS信息可以简单的实现。
结合本发明第一方面，本发明第一方面第三实施方式中，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM 业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。如果目标数据为SC-PTM业务的业务数据，由于SC-MTCH是映射到PDSCH上，所以SC-PTM业务的业务数据在PDCCH上进行调度，配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识具体为SC-MTCH调度的标识(G-RNTI)，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的业务数据，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的业务数据的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第一方面第三实施方式，本发明第一方面第四实施方式中，所述接入网设备向终端设备发送SPS信息的配置信息之前，还包括：
接入网设备通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在SC-MTCH上的所述SC-PTM业务的业务数据。
由于现有的SC-MCCH控制信息中存在SC-PTM业务的业务数据的调度信息，而在SIB20中增加对应SC-PTM业务的业务数据的调度信息的字段，因此，使得配置SPS信息可以通过SC-MCCH控制信息或SIB实现。
结合本发明第一方面第一实施方式或第一方面第三实施方式，本发明第一方面第三实施方式中，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
接入网设备发送给终端设备的配置信息中还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活，使得终端设备根据 SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第一方面，本发明第一方面第六实施方式，所述方法还包括：
所述接入网设备向所述终端设备发送SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的DCI中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
在接入网设备发送给终端设备的配置信息之前或者之后，还需要通过PDCCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载在SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得终端设备根据SPS激活和去激活信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第一方面、第一方面第一实施方式、第一方面第二实施方式、第一方面第三实施方式、第一方面第四实施方式、第一方面第五实施方式或第一方面第六实施方式，本发明第一方面第七实施方式中，所述控制信息承载于SC-MCCH，所述业务数据承载于SC-MTCH。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。
本发明第二方面提供一种多播数据调度方法，包括：
终端设备接收接入网设备发送的SPS信息的配置信息，所述SPS信息用于调度承载在PDSCH上的目标数据，所述目标数据为SC-PTM业务的控制信息或业务数据；
所述终端设备根据所述配置信息接收所述接入网设备发送的所述目标数据。
如果目标数据是SC-PTM业务的控制信息，终端设备根据接收到的接入网设备发送的配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果目标数据是SC-PTM业务的业务数据， 终端设备根据配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第二方面，本发明第二方面第一实施方式中，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。如果目标数据为SC-PTM业务的控制信息，由于SC-MCCH是映射到PDSCH上，所以SC-PTM业务的控制信息在PDCCH上进行调度，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为SC-PTM业务的控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识具体为SC-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的控制信息，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的控制信息的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第二方面，本发明第二方面第二实施方式中，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承 载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。如果目标数据为SC-PTM业务的业务数据，由于SC-MTCH是映射到PDSCH上，所以SC-PTM业务的业务数据在PDCCH上进行调度，配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识具体为G-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的业务数据，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的业务数据的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第二方面第一实施方式或第二方面第二实施方式，本发明第二方面第三实施方式中，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
终端设备接收接入网设备发送的配置信息中还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第二方面，本发明第二方面第三实施方式，所述方法还包括：
所述终端设备接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中；
所述终端设备根据所述SPS激活或去激活信息确定SPS激活或去激活的状态。
在终端设备接收接入网设备发送的配置信息之前或者之后，还需要通过 PDCCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载与SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS未激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第二方面、第二方面第一实施方式、第二方面第二实施方式、第二方面第三实施方式和第二方面第四实施方式，本发明第二方面第五实施方式中，所述控制信息承载于SC-MCCH，所述业务数据承载于单小区多播业务信道SC-MTCH。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的数据信息。
本发明第三方面提供一种接入网设备，包括：处理器、收发器及存储器，其中，存储器可以用于存储处理器执行的代码；
所述收发器，用于向终端设备发送半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
所述收发器，还用于根据所述配置信息向所述终端设备发送所述目标数据。
SC-PTM技术能够在单小区中实现接入网设备向多个终端设备发送相同多播数据的技术特点，融合SPS技术，SPS技术允许接入网设备半静态配置无线资源(可称为SPS资源)，并将SPS资源周期性地分配给某个特定终端设备。收发器要发送目标数据之前，处理器需要先配置好SPS信息，目标数据是SC-PTM业务的控制信息或业务数据，收发器将配置SPS信息的配置信息发送给终端设备，使得终端设备根据配置信息可以接收到目标数据，如果目标数据是SC-PTM业务的控制信息，终端设备根据配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果目标数据是SC-PTM业务的业务数据，终端设备根据配置信息就可以知道SC-PTM 业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第三方面，本发明第三方面第一实施方式中，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的数据信息。如果目标数据为SC-PTM业务的控制信息，由于SC-MCCH是映射到PDSCH上，所以SC-PTM业务的控制信息在PDCCH上进行调度，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为SC-PTM业务的控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识具体为SC-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的控制信息，不需要接入网设备每一个周期都在PDSCH上发送SC-PTM业务的控制信息的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第三方面第一实施方式，本发明第三方面第二实施方式中，
所述处理器，用于通过系统信息块SIB配置SPS信息，所述SIB包含单小区多播控制信道SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
结合本发明第三方面，本发明第三方面第三实施方式中，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、 重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识具体为G-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息能够接收到SC-PTM业务的业务数据，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的业务数据的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第三方面第三实施方式，本发明第三方面第四实施方式中，
所述处理器，用于通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的所述SC-PTM业务的业务数据。
结合本发明第三方面第一实施方式或第三方面第三实施方式，本发明第三方面第五实施方式中，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
收发器发送给终端设备的配置信息中还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第三方面，本发明第三方面第三实施方式，
所述收发器，还用于向所述终端设备发送SPS激活或去激活信息，所述SPS 激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
在收发器发送给终端设备的配置信息之前或者之后，收发器还需要通过PDSCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载与SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS未激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第三方面、第三方面第一实施方式、第三方面第二实施方式、第三方面第三实施方式、第三方面第四实施方式、第三方面第五实施方式或第三方面第六实施方式，本发明第三方面第七实施方式中，所述控制信息承载于SC-MCCH，所述业务数据承载于SC-MTCH。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。
本发明第四方面提供一种终端设备，包括：处理器、接收机、发射机、天线及存储器，其中，存储器可以用于存储处理器执行的代码；
接收机，用于接收接入网设备发送的半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
接收机，用于根据所述配置信息接收所述接入网设备发送的所述目标数据。
如果接收机接收到的目标数据是SC-PTM业务的控制信息，接收机根据接收到的接入网设备发送的配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果接收机接收到的目标数据是SC-PTM业务的业务数据，根据接收到的配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调 度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第四方面，本发明第四方面第一实施方式中，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
接收机接收的配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为SC-PTM业务的控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识具体为SC-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，接收机接收到配置信息之后，接收机根据配置信息能够接收到SC-PTM业务的控制信息，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的控制信息的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第四方面，本发明第四方面第二实施方式中，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
接收机接收的配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识具体为G-RNTI，用于加扰承载SPS信息的PDCCH，窄带 指示用于指示SPS信息适用的窄带，接收机接收到配置信息之后，接收机根据配置信息能够接收到SC-PTM业务的业务数据，不需要接入网设备每一个周期都在PDCCH上发送SC-PTM业务的业务数据的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
结合本发明第四方面第一实施方式或第四方面第二实施方式，本发明第四方面第三实施方式中，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
结合本发明第四方面，本发明第四方面第三实施方式，
所述接收机，还用于接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的DCI中；
处理器，用于根据SPS激活或去激活信息确定SPS激活或去激活的状态。
在接收机接收接入网设备发送的配置信息之前或者之后，接收机还需要通过PDCCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载与SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得接收机根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
结合本发明第四方面、第四方面第一实施方式、第四方面第二实施方式、第四方面第三实施方式和第四方面第四实施方式，本发明第四方面第五实施方式中，所述控制信息承载于SC-MCCH，所述业务数据承载于单小区多播业务信道SC-MTCH。
SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的数据信息。
本发明第五方面提供一种接入网设备，包括：
发送模块，用于向终端设备发送SPS信息的配置信息，所述SPS信息用于调度承载在PDSCH上的目标数据，所述目标数据为SC-PTM业务的控制信 息或业务数据；
所述发送模块，还用于根据所述配置信息向所述终端设备发送所述目标数据。
SC-PTM技术能够在单小区中实现接入网设备向多个终端设备发送相同多播数据的技术特点，融合SPS技术，SPS技术允许接入网设备半静态配置无线资源(可称为SPS资源)，并将SPS资源周期性地分配给某个特定终端设备。发送模块要发送目标数据之前，需要先配置好SPS信息，目标数据是SC-PTM业务的控制信息或业务数据，收发器将配置SPS信息的配置信息发送给终端设备，使得终端设备根据配置信息可以接收到目标数据，如果目标数据是SC-PTM业务的控制信息，终端设备根据配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果目标数据是SC-PTM业务的业务数据，终端设备根据配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第五方面，本发明第五方面第一实施方式中，所述接入网设备还包括：处理模块；
所述处理模块，用于通过SIB配置SPS信息，所述SIB包含SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
或，
所述处理模块，用于通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的所述SC-PTM业务的业务数据。
结合本发明第五方面，本发明第五方面第二实施方式中，
所述收发器，还用于向所述终端设备发送SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的DCI 中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
本发明第六方面提供一种终端设备，包括：
接收模块，用于接收接入网设备发送的SPS信息的配置信息，所述SPS信息用于调度承载在PDSCH上的目标数据，所述目标数据为SC-PTM业务的控制信息或业务数据；
所述接收模块，还用于根据所述配置信息接收所述接入网设备发送的所述目标数据。
如果接收模块接收到的目标数据是SC-PTM业务的控制信息，接收模块根据接收到的接入网设备发送的配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果接收模块接收到的目标数据是SC-PTM业务的业务数据，根据接收到的配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
结合本发明第六方面，本发明第六方面第一实施方式中，所述终端设备还包括：处理模块；
所述接收模块，还用于接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的DCI中；
所述处理模块，用于根据所述SPS激活或去激活信息确定SPS激活或去激活的状态。
在接收模块接收接入网设备发送的配置信息之前或者之后，接入网设备还需要通过PDCCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载与SC-MCCH调度标识加扰的PDCCH的DCI中，接收模块在获取DCI之后，处理模块根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
附图说明
为了更清楚地说明本发明实施例技术方案，下面将对实施例和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它的附图。
图1为本申请提供的应用场景或构架示意图；
图2为本申请提供的SC-MCCH的系统帧的示意图；
图3为本申请提供的SC-MCCH出现的子帧位置的示意图；
图4为本申请提供的SC-MCCH的MP为48的示意图；
图5为本申请提供的SC-MCCH的RP的示意图；
图6为本申请提供的一个SPS配置的示意图；
图7为本申请提供的多播数据调度方法的一个实施例的信令流程图；
图8为本申请提供的多播数据调度方法的另一个实施例的信令流程图；
图9为本申请提供的接入网设备的一个实施例的结构示意图；
图10为本申请提供的终端设备的一个实施例的结构示意图；
图11为本申请提供的接入网设备的又一个实施例的结构示意图；
图12为本申请提供的终端设备的又一个实施例的结构示意图。
具体实施方式
本发明提供多播数据调度方法、终端设备及接入网设备，用于将SPS技术应用于LTE-MTC通信系统，以实现节省无线资源，降低终端设备功耗的目的。
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。
首先简单介绍本发明应用的系统构架或场景。
本发明应用于无线通信网络系统，可以应用于LTE-MTC系统，如图1所示，接入网设备与核心网连接，采用SC-PTM技术，接入网设备覆盖的小区中包含N个终端设备，接收同一SC-PTM业务的一组终端设备使用相同的下行配置来 进行SC-PTM业务接收，接入网设备不必和每个终端设备建立通信链路。
接入网设备可以是小区的网络设备，可以是小区层面意义上的基站或者具有类似于基站的功能的网络设备，例如无线路由器和无线接入点(Access Point，AP)等。接入网设备可以是为小区内移动或固定不动的终端设备提供无线接入和通信服务的网络设备。
终端设备可以为手机、智能终端、多媒体设备、流媒体设备及MTC终端设备等。
首先，介绍现有的SC-PTM技术，SC-PTM技术是一种利用共享时频资源同时向多个终端设备传输相同SC-PTM业务的技术，接收同一SC-PTM业务的一组终端设备使用相同的下行配置来进行SC-PTM业务接收，不必为每个UE建立自己的通信链路。SC-PTM有一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个逻辑信道都映射到物理下行共享信道PDSCH上，其中SC-MCCH上包含SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的业务数据。SC-PTM业务的控制信息以周期进行发送，SC-MCCH周期有重复周期(Repetition Period,RP)和修改周期(Modification Period,MP)，每个重复周期发送一次SC-PTM业务的控制信息，一个修改周期中包含若干个重复周期且修改周期内SC-PTM业务的控制信息的内容不变。
在SC-PTM技术中，小区通过G-RNTI(可以理解为SC-MTCH调度信息的标识)来同时向多个终端设备调度SC-PTM业务的SC-MTCH业务数据，每个G-RNTI可以关联一个SC-PTM业务，例如软件升级业务。
以终端设备侧接收SC-PTM业务为例，具体过程如下：
一、终端设备从接入网设备获取SIB；
现有的SIB中，分为很多类型的SIB，例如，SIB3包含用于小区选择和重选的参数，而SIB20包含传输SC-PTM业务的控制信息的配置信息，即SC-MCCH的配置信息。由于SC-MCCH是映射到PDSCH上的，所以需要PDCCH上的控制信息来进行调度，这个控制信息来是由SC-RNTI(可以理解为SC-MCCH调度信息的标识)加扰的，终端设备通过SC-MCCH的配置信息就可以知道如何来接收SC-PTM业务的SC-MCCH控制信息，现有技术中PDCCH控制信息与SC-MCCH控制信息是在同一个子帧上发送的。
SIB20如下：
Figure PCTCN2016101318-appb-000001
SIB20中具体包含：
1、SC-MCCH的RP及偏移量(sc-mcch-Offset)，即SC-MCCH周期出现的边界，在每个满足公式SFN mod sc-mcch-RepetitionPeriod＝sc-mcch-Offset的系统帧(System Frame Number,SFN)上出现PDCCH和SC-MCCH。例如，sc-mcch-RepetitionPeriod为rf16，即16个radio frame无线帧，sc-mcch-Offset＝1，则出现PDCCH和SC-MCCH的系统帧如图2所示。
2、SC-MCCH传输时间(sc-mcch-duration)表示SC-MCCH传输持续时间，SC-MCCH起始位置(sc-mcch-FirstSubframe)，在一个系统帧内，例如sc-mcch-FirstSubframe＝4,sc-mcch-duration＝3，则SC-MCCH出现的子帧位置如图3所示。
3、SC-MCCH的MP，例如MP＝48，如图4所示。详细的SC-MCCH的配置如图5所示，SC-MCCH在每个MP中重复发送，重复周期为RP，在一个MP中，SC-MCCH的内容一样，当SC-MCCH发生变化时，会发送包含修改通知的 PDCCH控制信息，修改通知为SC-MCCH change Notification，当终端设备在PDCCH上检测到SC-N-RNTI(可以理解为修改通知的标识)，即认为检测到了修改通知，终端设备重新获取SC-MCCH。终端设备在获取SC-MCCH时，需要检测SC-RNTI(可以理解为SC-MCCH调度信息的标识)加扰的PDCCH控制信息，以获取SC-MCCH调度信息。
二、终端设备根据SIB20中的配置信息来接收由SC-RNTI(可以理解为SC-MCCH调度信息的标识)加扰的PDCCH控制信息(记作第一PDCCH控制信息)；
三、终端设备根据第一PDCCH控制信息可以知道SC-MCCH调度信息，SC-MCCH调度信息是发送SC-MCCH控制信息的调度信息，根据SC-MCCH调度信息可以接收到SC-MCCH控制信息，SC-MCCH控制信息内容如下：
Figure PCTCN2016101318-appb-000002
SC-MCCH控制信息具体包含：SC-PTM业务的标识MBMSSessionInfo(TMGI,Session ID)、用于接收SC-MTCH调度信息的标识G-RNTI(此处为BIT STRING(SIZE(16)))、接收SC-MTCH业务数据的时间信息sc-mtch-schedulingInfo。由于SC-MTCH也是映射到PDSCH上的，所以需要一个PDCCH控制信息来调度，这个PDCCH控制信息是由G-RNTI(可以理解为SC-MTCH调度信息的标识)加扰的。
四、终端设备根据SC-MCCH控制信息接收G-RNTI(可以理解为SC-MTCH 调度信息的标识)加扰的PDCCH控制信息(记作第二PDCCH控制信息)。
五、终端设备根据第二PDCCH控制信息得到SC-MTCH调度信息，SC-MTCH调度信息就是SC-PTM业务的SC-MTCH业务数据的调度信息，根据SC-MTCH业务数据的调度信息知道SC-MTCH业务数据在数据信道SC-MTCH中所占用的资源，进而接收SC-MTCH业务数据。
终端设备通过以上五个步骤接收SC-PTM业务数据。而为了实现SC-PTM的覆盖增强，需要重复发送SIB20、第一PDCCH、第二PDCCH、SC-PTM业务的控制信息和SC-PTM业务的业务数据，SC-PTM业务的控制信息SC-PTM业务的业务数据的调度都需要PDCCH上的控制信息来实现，消耗大量的PDCCH资源，并且对于SC-PTM的终端设备来说，一般都是工作在窄带上的，PDCCH资源比较有限，终端设备需要接收控制信息增多，也会增加接收功耗。
由于半静态调度(Semi-Persist Scheduling,SPS)技术有“一次分配，多次使用”的特点，不需要在每个子帧都为终端设备下发下行控制信息(Downlink Control Information,DCI)，从而可以降低PDCCH资源的开销。配置了SPS调度的终端设备可以同时进行动态调度，所以需要区分PDCCH控制信息是用于动态调度还是SPS调度。因此，配置了SPS调度的终端设备有2个标识：一个正常的C-RNTI，用于动态调度；另一个是SPS-C-RNTI，用于SPS调度，通过无线资源控制(Radio Resource Control，RRC)消息进行配置。
对于下行SPS，如果配置并激活了下行SPS，则终端设备会认为在满足下面公式的子帧里(称为SPS子帧)被分配了SPS下行资源(此时无需收到PDCCH控制信息)：
(10×SFN+subframe)＝[(10×SFNstart time+subframestart time)+N×semiPersistSchedulingIntervalDL]modulo 10240；
其中N>0(初始为0，每过一个周期加1)，SFNstart time和subframestart time为UE接收到指示下行SPS激活的PDCCH的系统帧号和子帧号。modulo 10240是因为系统帧使用10比特表示，取值范围为0～1023，每隔1024个系统帧需要做一次反转。semiPersistSchedulingIntervalDL用于指明终端设备每隔semiPersistSchedulingIntervalDL个子帧被分配一次SPS资源，即SPS的周期。如图6所示，指示SPS激活的PDCCH控制信息的SFN＝1，subframe＝4， semiPersistSchedulingIntervalDL＝7，表示起始时间为第一个SFN的第4个子帧，而且SPS周期(或称为SPS间隔)为7个子帧，则SPS资源为图7中阴影的子帧。但是现有SPS技术中接入网设备针对的是一个特定的终端设备，不满足LTE-MTC通信系统的SC-PTM场景下，终端设备众多，并且覆盖等级不同的情况。
下面通过实施例对在上述系统构架或场景中接入网设备和终端设备之间的交互的多播数据调度方法进行说明。
请参阅图7，本发明实施例提供一种多播数据调度方法，包括：
701、接入网设备向终端设备发送SPS信息的配置信息，终端设备接收接入网设备发送的SPS信息的配置信息；
本实施例中，接入网设备为了实现向其覆盖范围的MTC类型的终端设备发送相同的目标数据，目标数据为SC-PTM业务的控制信息或业务数据，需要预配置好SPS信息，SPS信息用于调度承载在PDSCH上的目标数据，终端设备接收到接入网设备发送的SPS信息的配置信息，由于SPS信息用于调度承载在PDSCH上的目标数据，那么终端设备通过配置信息可以知道接入网设备是如何配置SPS信息的，从而知道承载在PDSCH上的目标数据是如何调度的。
702、接入网设备根据配置信息向终端设备发送目标数据，终端设备根据配置信息接收接入网设备发送的目标数据；
本实施例中，接入网设备在确定并发送了SPS信息的配置信息后，根据配置信息调度承载在PDSCH上的目标数据，将目标数据发送至终端设备，终端设备获取到配置信息之后，通过配置信息可以知道接入网设备是如何配置SPS信息的，知道目标数据是如何调度的之后，从而接收到接入网设备发送的目标数据。
本发明实施例中，由于采用的是SPS技术，SPS信息指示的SC-PTM业务是周期性的重复发送的，接入网设备要发送目标数据之前，需要先配置好SPS信息，目标数据是SC-PTM业务的控制信息或业务数据，将配置SPS信息的配置信息发送给终端设备，使得终端设备根据配置信息可以得到目标数据，如果目标数据是SC-PTM业务的控制信息，终端设备根据配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调 度；如果目标数据是SC-PTM业务的业务数据，终端设备根据配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
可选的，本发明的一些实施例中，
目标数据为SC-PTM业务的控制信息，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带；
或，
目标数据为SC-PTM业务的业务数据，配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带。
在SC-PTM技术中，存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的数据信息，因此，上述实施例中目标数据可以分为SC-PTM业务的控制信息和SC-PTM业务的业务数据两种。现有的SIB20中包含SC-MCCH控制信息的配置信息；现有的SC-MCCH控制信息包含SC-MTCH的业务数据发送的配置信息，为了实现节省PDCCH资源，本发明接入网设备向终端设备发送SPS信息的配置信息之前，还需要配置SPS信息，得到的配置信息，提供了以下两种方案，(一)、目标数据为SC-PTM业务的控制信息时，通过SIB(SIB20)配置SPS信息的配置信息；(二)、目标数据为SC-PTM业务的业务数据时，通过SC-MCCH控制信息或SIB(SIB20)配置SPS信息的配置信息。具体的：
(一)、目标数据为SC-PTM业务的控制信息时，通过SIB(SIB20)配置SPS信息的配置信息；
1、配置第一SPS周期信息；
主要的方式有四种：方式一、使用SIB20中控制信息的MP作为第一SPS周期；方式二、第一SPS周期为MP的正整数倍，即若干个MP为一个第一SPS周期；方式三、使用SIB20中控制信息的RP作为第一SPS周期；方式四、第一SPS周期为RP的正整数倍，即若干个RP为一个第一SPS周期，在具体实施时，还可以根据需求设置第一SPS周期，具体不做限定。
2、配置重复次数；
考虑到接入网设备在发送相同或不同的SC-PTM业务中，可以使用不同的覆盖等级，所以在配置重复次数时，接入网设备可以根据不同的覆盖等级选择具有不同重复次数的SPS模式的配置方式，其中重复次数可以构成若干个集合，综合覆盖等级选择不同重复次数的SPS模式的配置方式的关联表如下表1所示。
表1
SPS模式配置 覆盖等级(重复次数)
SPS模式1 4,8,16
不配置SPS模式 32,64,128
SPS模式2 256,512,1024
SPS模式3 2048
3、配置调度标识；
通过SC-RNTI对承载SPS信息的PDCCH进行加扰，在本文中，PDCCH具体还可以为MTC终端使用的PDCCH，即MPDCCH，使得终端在检测PDCCH时，检测到加扰有SC-RNTI的PDCCH，就可以通过此PDCCH资源得到SPS信息。或者，引入新的SPS-SC-RNTI用于加扰承载SPS信息的PDCCH。
4、配置窄带指示。
对于不同的终端设备，可能需要选择不同的工作窄带，接入网设备可以根据不同的窄带信息选择具有不同SPS模式的配置方式，如表2所示。
表2
SPS模式配置 窄带信息
SPS模式1 窄带1
不配置SPS模式 窄带2
SPS模式2 窄带3
SPS模式3 窄带4
(二)、目标数据为SC-PTM业务的业务数据时，通过SC-MCCH控制信息或SIB(SIB20)配置SPS信息的配置信息。
现有的SC-MCCH控制信息包含SC-PTM的业务数据的配置信息，SIB20中只包含SC-MCCH控制信息的配置信息，但是，可以通过增加或修改SIB20中字段的方式将SC-PTM的业务数据的配置信息设置在SIB20中，通过SC-MCCH控制信息或SIB(SIB20)配置SPS信息的配置信息包括：
1、配置第二SPS周期信息；
主要的方式有两种：方式一、使用业务数据的重复发送间隔(周期)，作为第二SPS周期；方式二、第二SPS周期为业务数据的重复发送间隔(周期)的若干倍数。
2、配置对应关系；
对于不同SC-PTM业务，需要选择不同的SPS模式的配置方式，SC-PTM业务的业务标识一般为G-RNTI，如表3所示。
表3
SPS模式配置 业务标识
SPS模式1 G-RNTI 1
不配置SPS模式 G-RNTI 2
SPS模式2 G-RNTI 3
SPS模式3 G-RNTI 4
3、配置重复次数；
如(一)中1所述。
4、配置调度标识；
通过G-RNTI对承载SPS信息的PDCCH进行加扰，使得终端在检测PDCCH时，检测到加扰有G-RNTI的PDCCH，就可以通过此PDCCH资源得到SPS信息。或者，引入新的SPS-G-RNTI用于加扰承载SPS信息的PDCCH。
5、配置窄带指示。
如(一)中4所示。
上述实施例中对配置信息以及配置SPS信息进行了说明，为了使终端设备更加清楚的知道何时开始动态调度和SPS，接入网设备还需要发送SPS激活或去激活信息，第一种方式是将SPS激活或去激活信息包含于配置信息中，第二种方式是不包含在配置信息中，第一种方式易于实现，无须说明，第二种方式具体的如下：
请参阅图8，本发明实施例提供一种多播数据调度方法，包括：
801、接入网设备向终端设备发送SPS信息的配置信息，终端设备接收接入网设备发送的SPS信息的配置信息；
详情请参阅图7中的步骤701所述。
802、接入网设备向终端设备发送SPS激活或去激活信息，终端设备接收所述接入网设备发送的SPS激活或去激活信息；
本实施例中，接入网设备还需要向终端设备发送SPS激活或去激活信息，SPS激活或去激活信息包含于SPS-SC-RNTI(或SC-RNTI)加扰的PDCCH承载的DCI中，终端设备在接收到SPS激活或去激活信息后，根据SPS激活或去激活信息就能知道SPS或者动态调度该何时开始或何时结束。
803、接入网设备根据配置信息向终端设备发送目标数据，终端设备根据配置信息接收接入网设备发送的目标数据。
本实施例中，接入网设备在确定并发送了SPS信息的配置信息后，根据配置信息调度承载在PDSCH上的目标数据，将目标数据发送至终端设备，终端设备获取到配置信息之后，通过配置信息并且综合步骤802中的SPS激活或去激活信息可以知道接入网设备是如何配置SPS信息的，知道目标数据是如何调度的之后，从而接收到接入网设备发送的目标数据。
本发明实施例中，接入网设备向终端设备发送SPS激活或去激活信息，可以使得终端设备更加准确的接收目标数据。
需要说明的是，图8所示的实施例中，步骤802也可以在步骤801之前，也可以处于步骤801之后，但是必须处于步骤803之前。
需要说明的是，图8所示的实施例中，SPS激活或去激活信息主要的配置 方式有：方式一、通过SPS-SC-RNTI对承载的PDCCH进行加扰，将SPS激活或去激活信息承载于该PDCCH中；方式二、通过SC-RNTI对承载的PDCCH进行加扰，将SPS激活或去激活信息承载于该PDCCH中。
需要说明的是，接入网设备还可以向终端设备发送SPS激活补发信息，SPS激活补发信息即SPS激活后补发PDCCH控制信息的配置信息，考虑到SPS激活后，接入网设备不再发送PDCCH控制信息，若这时有终端设备对SC-PTM业务感兴趣，就无法收到了，这时就需要在SPS激活期内补充发送一些PDCCH控制信息指示某个特定时刻让终端设备接收PDCCH，以便于接收SC-PTM业务，这样终端设备可以在接入网设备不发送PDCCH控制信号的时间不去检测PDCCH以减少功耗。具体的设置有：方式一、配置补发PDCCH控制信号的周期，该周期的配置可以有上述SPS周期的配置的四种方式，终端设备根据SIB20中配置的MP或RP和偏移量信息，即可计算出补发PDCCH控制信号的位置；方式二、配置补发PDCCH控制信息的偏移量信息，偏移量信息可以相对于激活SPS资源的PDCCH而说，偏移量信息可以是具体的子帧数、系统帧数、若干倍的MP或若干倍的RP。
上述实施例对多播数据调度方法进行了说明，以下实施例对接入网设备和终端设备分别进行说明。
请参阅图9、本发明实施例提供一种接入网设备900，包括：处理器901、收发器902及存储器903，其中，存储器903可以用于存储处理器901执行的代码；
收发器902，用于向终端设备发送SPS信息的配置信息，SPS信息用于调度承载在PDSCH上的目标数据，目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
收发器902，用于根据配置信息向终端设备发送目标数据。
本发明实施例中，如果收发器902需要发送的目标数据是SC-PTM业务的控制信息，终端设备根据收发器902发送的配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果收发器902需要目标数据是SC-PTM业务的业务数据，终端设备根据收发器902发送的配置 信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
可选的，本发明的一些实施例中，
目标数据为SC-PTM业务的控制信息，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带；
或，
目标数据为SC-PTM业务的业务数据，配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带。
本发明实施例中，SC-PTM技术中存在一个控制信道SC-MCCH和一个数据信道SC-MTCH，这两个信道都映射到PDSCH上，其中SC-MCCH上传输SC-PTM业务的控制信息，SC-MTCH用来传输SC-PTM业务的数据信息。如果目标数据为SC-PTM业务的控制信息，由于SC-MCCH是映射到PDSCH上，所以SC-PTM业务的控制信息在PDCCH上进行调度，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为SC-PTM业务的控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识具体为SC-RNTI，用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带，终端设备接收到配置信息之后，根据配置信息接收SC-PTM业务的控制信息，不需要收发器902每一个周期都在PDSCH上发送SC-PTM业务的控制信息的调度信息，因此，节省了PDCCH资源，终端设备的功耗也降低了。
可选的，本发明的一些实施例中，
处理器901，用于通过SIB配置SPS信息，SIB包含SC-MCCH控制信息的配置信息，SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息；
或，
处理器901，用于通过SC-MCCH控制信息或SIB配置SPS信息，SIB包含SC-PTM业务的业务数据的调度信息，SC-MCCH控制信息包含SC-PTM业务的业务数据的调度信息，SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的SC-PTM业务的业务数据。
本发明实施例中，由于现有的SIB20中存在SC-MCCH控制信息的配置信息，而SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息，那么处理器901根据SIB配置SPS信息可以简单的实现；由于现有的SC-MCCH控制信息中存在SC-PTM业务的业务数据的调度信息，而在SIB20中增加对应SC-PTM业务的业务数据的调度信息的字段，因此，使得处理器901配置SPS信息可以通过SC-MCCH控制信息或SIB实现。
可选的，本发明的一些实施例中，配置信息还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活。
本发明实施例中，收发器902发送给终端设备的配置信息中还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
可选的，本发明的一些实施例中，
收发器902，还用于向终端设备发送SPS激活或去激活信息，SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中，SPS激活或去激活信息用于指示SPS信息的激活或去激活。
本发明实施例中，在收发器902发送给终端设备的配置信息之前或者之后，收发器902还需要通过PDSCH给终端设备下发SPS激活或去激活信息，SPS激活 或去激活信息承载与SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得终端设备根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
请参阅图10、本发明实施例提供一种终端设备1000，包括：处理器1001、接收机1002、发射机1003、天线1004及存储器1005，其中，存储器1005可以用于存储处理器1001执行的代码；
接收机1002，用于接收接入网设备发送的SPS信息的配置信息，SPS信息用于调度承载在PDSCH上的目标数据，目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
接收机1002，用于根据配置信息接收接入网设备发送的目标数据。
本发明实施例中，接收机1002根据接收的配置信息就可以知道SC-PTM业务的控制信息在PDSCH上占用的资源，不需要动态的PDCCH来调度；如果目标数据是SC-PTM业务的业务数据，接收机1002根据配置信息就可以知道SC-PTM业务的业务数据在PDSCH上占用的资源，不需要动态的PDCCH来调度，因此，减少了PDCCH上的控制信息的数量，减小了PDCCH资源的消耗，并且降低了终端设备的功耗。
可选的，本发明的一些实施例中，
目标数据为SC-PTM业务的控制信息，配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，第一SPS周期信息为控制信息的修改周期、控制信息的重复周期、控制信息的修改周期的倍数或控制信息的重复周期的倍数中的至少一项，重复次数为控制信息的重复发送次数，调度标识用于加扰承载SPS信息的物理下行控制信道PDCCH，窄带指示用于指示SPS信息适用的窄带；
或，
目标数据为SC-PTM业务的业务数据，配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，SPS周期信息为重 复发送业务数据的周期，对应关系用于指示SPS信息适用的SC-PTM业务，重复次数为业务数据的重复发送次数，调度标识用于加扰承载SPS信息的PDCCH，窄带指示用于指示SPS信息适用的窄带。
可选的，本发明的一些实施例中，配置信息还包括SPS激活或去激活信息，SPS激活或去激活信息用于指示SPS信息的激活或去激活。
可选的，本发明的一些实施例中，
接收机1002，还用于接收接入网设备发送的SPS激活或去激活信息，SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中
处理器1001，用于根据SPS激活或去激活信息确定SPS激活或去激活的状态。
本发明实施例中，在接收机1002接收接入网设备发送的配置信息之前或者之后，接入网设备还需要通过PDCCH给终端设备下发SPS激活或去激活信息，SPS激活或去激活信息承载于SC-MCCH调度标识加扰的PDCCH的DCI中，终端设备在获取DCI之后，使得处理器1001根据SPS激活和去激动信息知道SPS激活的时刻和SPS去激活的时刻，SPS激活之内不接收PDCCH上的控制信息，SPS去激活之后开始动态调度，使得终端设备可以更加准确的获知SPS激活和去激活的状态。
请参阅图11，本发明实施例提供一种接入网设备，包括：发送模块1101和处理模块1102；
发送模块1101，用于向终端设备发送SPS信息的配置信息，SPS信息用于调度承载在PDSCH上的目标数据，目标数据为SC-PTM业务的控制信息或业务数据；
发送模块1101，还用于根据配置信息向终端设备发送目标数据；
需要说明的是，其中，处理模块1102未执行操作，可以存在也可以不存在。
可选的，本发明的一些实施例中，接入网设备还包括：处理模块1102；
处理模块1102，用于通过SIB配置SPS信息，SIB包含SC-MCCH控制信息 的配置信息，SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
或，
处理模块1102，用于通过SC-MCCH控制信息或SIB配置SPS信息，SIB包含SC-PTM业务的业务数据的调度信息，SC-MCCH控制信息包含SC-PTM业务的业务数据的调度信息，SC-PTM业务的业务数据的调度信息用于调度承载在SC-MTCH上的SC-PTM业务的业务数据。
可选的，本发明的一些实施例中，
收发器1101，还用于向终端设备发送SPS激活或去激活信息，SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的DCI中，SPS激活或去激活信息用于指示SPS激活或去激活。
请参阅图12，本发明实施例提供一种终端设备，包括：
接收模块1201，用于接收接入网设备发送的SPS信息的配置信息，SPS信息用于调度承载在PDSCH上的目标数据，目标数据为SC-PTM业务的控制信息或业务数据；
接收模块1201，还用于根据配置信息接收接入网设备发送的目标数据；
需要说明的是，其中，处理模块1202未执行操作，可以存在也可以不存在。
可选的，本发明的一些实施例中，终端设备还包括：处理模块1202；
接收模块1201，还用于接收接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于单小区多播控制信道SC-MCCH调度标识加扰的物理下行控制信道PDCCH承载的下行控制信息DCI中；
处理模块1202，用于根据SPS激活或去激活信息确定SPS激活或去激活的状态。
应注意，本发明上述方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal  processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本发明实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(souble sata rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。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动作顺序的限制，因为依据本发明，某些步骤可以采用其它顺序或者同时进行。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。

Claims (33)

  1. 一种多播数据调度方法，其特征在于，包括：
    接入网设备向终端设备发送半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述接入网设备根据所述配置信息向所述终端设备发送所述目标数据。
  2. 根据权利要求1所述的多播数据调度方法，其特征在于，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  3. 根据权利要求2所述的多播数据调度方法，其特征在于，所述接入网设备向终端设备发送SPS信息的配置信息之前，还包括：
    接入网设备通过系统信息块SIB配置SPS信息，所述SIB包含单小区多播控制信道SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
  4. 根据权利要求1所述的多播数据调度方法，其特征在于，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  5. 根据权利要求4所述的多播数据调度方法，其特征在于，所述接入网设备向终端设备发送SPS信息的配置信息之前，还包括：
    接入网设备通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述 SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的所述SC-PTM业务的业务数据。
  6. 根据权利要求2或4所述的多播数据调度方法，其特征在于，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  7. 根据权利要求1所述的多播数据调度方法，其特征在于，所述方法还包括：
    所述接入网设备向所述终端设备发送SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  8. 根据权利要求1至7中任一项所述的多播数据调度方法，其特征在于，所述控制信息承载于SC-MCCH，所述业务数据承载于SC-MTCH。
  9. 一种多播数据调度方法，其特征在于，包括：
    终端设备接收接入网设备发送的半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述终端设备根据所述配置信息接收所述接入网设备发送的所述目标数据。
  10. 根据权利要求9所述的多播数据调度方法，其特征在于，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  11. 根据权利要求9所述的多播数据调度方法，其特征在于，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关 系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  12. 根据权利要求10或11所述的多播数据调度方法，其特征在于，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  13. 根据权利要求9所述的多播数据调度方法，其特征在于，所述方法还包括：
    所述终端设备接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于单小区多播控制信道SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中；
    所述终端设备根据所述SPS激活或去激活信息确定SPS激活或去激活的状态。
  14. 根据权利要求9至13中任一项所述的多播数据调度方法，其特征在于，所述控制信息承载于单小区多播控制信道SC-MCCH，所述业务数据承载于单小区多播业务信道SC-MTCH。
  15. 一种接入网设备，其特征在于，包括：处理器、收发器及存储器，其中，存储器可以用于存储处理器执行的代码；
    所述收发器，用于向终端设备发送半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述收发器，还用于根据所述配置信息向所述终端设备发送所述目标数据。
  16. 根据权利要求15所述的接入网设备，其特征在于，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的 修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  17. 根据权利要求16所述的接入网设备，其特征在于，
    所述处理器，用于通过系统信息块SIB配置SPS信息，所述SIB包含单小区多播控制信道SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
  18. 根据权利要求15所述的接入网设备，其特征在于，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  19. 根据权利要求18所述的接入网设备，其特征在于，
    所述处理器，用于通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的所述SC-PTM业务的业务数据。
  20. 根据权利要求16或18所述的接入网设备，其特征在于，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  21. 根据权利要求15所述的接入网设备，其特征在于，
    所述收发器，还用于向所述终端设备发送SPS激活或去激活信息，所述SPS激活或去激活信息包含于单小区多播控制信道SC-MCCH调度标识加扰的PDCCH承载的下行控制信息DCI中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  22. 根据权利要求15至21中任一项所述的接入网设备，其特征在于，所述控制信息承载于SC-MCCH，所述业务数据承载于SC-MTCH。
  23. 一种终端设备，其特征在于，包括：处理器、接收机、发射机、天线及存储器，其中，存储器可以用于存储处理器执行的代码；
    所述接收机，用于接收接入网设备发送的半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述接收机，还用于根据所述配置信息接收所述接入网设备发送的所述目标数据。
  24. 根据权利要求23所述的终端设备，其特征在于，所述目标数据为SC-PTM业务的控制信息，所述配置信息包括第一SPS周期信息、重复次数、调度标识及窄带指示中的至少一项，所述第一SPS周期信息为所述控制信息的修改周期、所述控制信息的重复周期、所述控制信息的修改周期的倍数或所述控制信息的重复周期的倍数中的至少一项，所述重复次数为所述控制信息的重复发送次数，所述调度标识用于加扰承载所述SPS信息的物理下行控制信道PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  25. 根据权利要求23所述的终端设备，其特征在于，所述目标数据为SC-PTM业务的业务数据，所述配置信息包括第二SPS周期信息、对应关系、重复次数、调度标识及窄带指示中的至少一项，所述SPS周期信息为重复发送所述业务数据的周期，所述对应关系用于指示所述SPS信息适用的SC-PTM业务，所述重复次数为所述业务数据的重复发送次数，所述调度标识用于加扰承载所述SPS信息的PDCCH，所述窄带指示用于指示所述SPS信息适用的窄带。
  26. 根据权利要求24或25所述的终端设备，其特征在于，所述配置信息还包括SPS激活或去激活信息，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  27. 根据权利要求23所述的终端设备，其特征在于，
    所述接收机，还用于接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于单小区多播控制信道SC-MCCH调度标识加 扰的PDCCH承载的下行控制信息DCI中；
    所述处理器，用于根据所述SPS激活或去激活信息确定SPS激活或去激活的状态。
  28. 根据权利要求23至27中任一项所述的终端设备，其特征在于，所述控制信息承载于SC-MCCH，所述业务数据承载于单小区多播业务信道SC-MTCH。
  29. 一种接入网设备，其特征在于，包括：
    发送模块，用于向终端设备发送半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述发送模块，还用于根据所述配置信息向所述终端设备发送所述目标数据。
  30. 根据权利要求29所述的接入网设备，其特征在于，所述接入网设备还包括：处理模块；
    所述处理模块，用于通过系统信息块SIB配置SPS信息，所述SIB包含单小区多播控制信道SC-MCCH控制信息的配置信息，所述SC-MCCH控制信息的配置信息用于调度承载在SC-MCCH上的SC-PTM业务的控制信息。
    或，
    所述处理模块，用于通过SC-MCCH控制信息或SIB配置SPS信息，所述SIB包含SC-PTM业务的业务数据的调度信息，所述SC-MCCH控制信息包含所述SC-PTM业务的业务数据的调度信息，所述SC-PTM业务的业务数据的调度信息用于调度承载在单小区多播业务信道SC-MTCH上的所述SC-PTM业务的业务数据。
  31. 根据权利要求29所述的接入网设备，其特征在于，
    所述收发器，还用于向所述终端设备发送SPS激活或去激活信息，所述SPS激活或去激活信息包含于SC-MCCH调度标识加扰的物理下行控制信道PDCCH承载的下行控制信息DCI中，所述SPS激活或去激活信息用于指示所述SPS信息的激活或去激活。
  32. 一种终端设备，其特征在于，包括：
    接收模块，用于接收接入网设备发送的半静态调度SPS信息的配置信息，所述SPS信息用于调度承载在物理下行共享信道PDSCH上的目标数据，所述目标数据为单小区点对多点传输SC-PTM业务的控制信息或业务数据；
    所述接收模块，还用于根据所述配置信息接收所述接入网设备发送的所述目标数据。
  33. 根据权利要求32所述的终端设备，其特征在于，所述终端设备还包括：处理模块；
    所述接收模块，还用于接收所述接入网设备发送的SPS激活或去激活信息，所述SPS激活或去激活信息包含于单小区多播控制信道SC-MCCH调度标识加扰的物理下行控制信道PDCCH承载的下行控制信息DCI中；
    所述处理模块，用于根据所述SPS激活或去激活信息确定SPS激活或去激活的状态。
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