CN108781345B

CN108781345B - Multicast data scheduling method, terminal equipment and access network equipment

Info

Publication number: CN108781345B
Application number: CN201680083453.2A
Authority: CN
Inventors: 王宏; 李秉肇; 陈力
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2020-10-09
Anticipated expiration: 2036-09-30
Also published as: CN108781345A; WO2018058637A1

Abstract

The application discloses a multicast data scheduling method, terminal equipment and access network equipment, which are used for applying SPS technology to an LTE-MTC communication system so as to achieve the purposes of saving wireless resources and reducing power consumption of the terminal equipment. The multicast data scheduling method in the embodiment of the application comprises the following steps: the access network equipment sends the configuration information of SPS information to the terminal equipment, the SPS information is used for scheduling target data carried on a PDSCH, and the target data is control information or service data of SC-PTM service; and the access network equipment sends the target data to the terminal equipment according to the configuration information.

Description

Multicast data scheduling method, terminal equipment and access network equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a multicast data scheduling method, a terminal device, and an access network device.

Background

Long Term Evolution (LTE) -Machine Type Communication (MTC) is different from conventional LTE communication, and it does not pursue data transmission rate, multi-band, multi-antenna and full-duplex transmission, but pursues low power consumption and low cost of terminal equipment, and in addition, considering application scenarios of MTC terminal equipment, such as water meter and electricity meter, the signal Coverage strength of terminal equipment cannot meet the signal reception requirement, so it is necessary to perform Coverage enhancement, so that access network equipment and terminal equipment can support extended Coverage (Coverage enhancement), at present, the main method for implementing extended Coverage is that access network equipment repeatedly sends data, and terminal equipment combines and receives data sent by access network equipment for multiple times, so as to achieve the purpose of improving the success rate of data reception, but when a large number of deployed MTC terminal equipment need to receive the same data within the same time, each MTC terminal device needs to establish a communication link with an access network device, and a base station faces a large number of terminal device connections, thereby occupying a large amount of network resources, which is a great challenge for the entire LTE-MTC communication system.

In order to reduce the pressure of network resources of the LTE-MTC communication system, the existing technical solution is specifically: a group of terminal devices receiving service data of the same SC-PTM service use the same downlink configuration, and an access network device does not need To establish a communication link with each terminal device, so that the coverage enhancement of SC-PTM can be realized by repeatedly sending for many times, and the service data of the SC-PTM service can be received by the terminal devices.

However, in each process of repeatedly transmitting the service data of the SC-PTM service, the Control information of the SC-PTM service also needs to be repeatedly transmitted, because the Control information of the SC-PTM service is carried on a Single cell multicast Control Channel (SC-MCCH), and the SC-MCCH is mapped to a Physical Downlink Shared Channel (PDSCH), and the resource on the PDSCH needs to be scheduled by the Control information of the Physical Downlink Control Channel (PDCCH), an increase in the number of transmissions of the Control information of the SC-PTM service inevitably increases the consumption of PDCCH resources, and also increases the Control information received by the terminal device, which increases the power consumption of the terminal device.

Disclosure of Invention

The application provides a multicast data scheduling method, terminal equipment and access network equipment, which are used for applying an SPS technology to an LTE-MTC communication system so as to achieve the purposes of saving wireless resources and reducing power consumption of the terminal equipment.

A first aspect of the present application provides a multicast data scheduling method, including:

the access network equipment sends the configuration information of SPS information to the terminal equipment, wherein the SPS information is used for scheduling target data carried on a PDSCH, and the target data is control information or service data of SC-PTM service;

and the access network equipment sends the target data to the terminal equipment according to the configuration information.

The SC-PTM technology can implement the technical features that the access network device sends the same multicast data to multiple terminal devices in a single cell, and integrates Semi-Persistent Scheduling (SPS) technology, which allows the access network device to Semi-statically configure radio resources (SPS resources) and periodically allocate the SPS resources to a specific terminal device(s). Before the access network equipment sends target data, SPS information needs to be configured, the target data is control information or service data of SC-PTM service, the configuration information for configuring the SPS information is sent to the terminal equipment, so that the terminal equipment can receive the target data according to the configuration information, if the target data is the control information of the SC-PTM service, the terminal equipment can know resources occupied by the control information of the SC-PTM service on a PDSCH according to the configuration information, and dynamic PDCCH (physical Downlink control channel) scheduling is not needed; if the target data is the service data of the SC-PTM service, the terminal equipment 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 for scheduling, thereby reducing the quantity of control information on the PDCCH, reducing the consumption of PDCCH resources and reducing the power consumption of the terminal equipment.

With reference to the first aspect of the present application, in a first implementation manner of the first aspect of the present application, the target data is control information of an SC-PTM service, the configuration information includes at least one of first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication, the first SPS period information is at least one of a modification period of the control information, 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 repetition number is a repetition transmission number of the control information, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information applies.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting service data of SC-PTM service. If the target data is control information of SC-PTM service, the control information of SC-PTM service is scheduled on PDCCH because SC-MCCH is mapped to PDSCH, the configuration information comprises at least one of first SPS period information, repetition times, scheduling identification and narrow band indication, the first SPS period information is at least one of modification period of the control information of SC-PTM service, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are repeated transmission times of the control information, the scheduling identification is specifically identification of SC-MCCH (Single Radio Network temporary Identity, SC-RNTI) used for scrambling PDCCH bearing SPS information, the narrow band indication is used for indicating a narrow band applicable to the SPS information, after the terminal equipment receives the configuration information, the control information of SC-PTM service can be received according to the configuration information, the access network equipment does not need to send the scheduling information of the control information of the SC-PTM service on the PDCCH every period, so the PDCCH resource is saved, and the power consumption of the terminal equipment is also reduced.

With reference to the first implementation manner of the first aspect of the present application, in a second implementation manner of the first aspect of the present application, before the sending, by the access network device, the configuration information of SPS information to the terminal device, the method further includes:

the access network equipment configures SPS information through SIB, wherein the SIB comprises configuration information of SC-MCCH control information, and the configuration information of the SC-MCCH control information is used for scheduling control information of SC-PTM service carried on SC-MCCH.

Since the existing SIB20 has the configuration information of SC-MCCH control information, and the configuration information of SC-MCCH control information is used for scheduling the control information of SC-PTM service carried on SC-MCCH, SPS information can be simply configured according to SIB.

With reference to the first aspect of the present application, in a third implementation manner of the first aspect of the present application, the target data is service data of an SC-PTM service, the configuration information includes at least one of second SPS period information, a correspondence, a repetition number, a scheduling identifier, and a narrowband indication, the SPS period information is a period for repeatedly sending the service data, the correspondence is used to indicate the SC-PTM service to which the SPS information applies, the repetition number is the repetition number of the service data, the scheduling identifier is used to scramble a PDCCH for carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information applies.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting service data of SC-PTM service. 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, the configuration information comprises at least one item of second SPS period information, a corresponding relation, a repetition frequency, a scheduling identifier and a narrow band indication, the SPS period information is a period for repeatedly sending the service data, the corresponding relation is used for indicating the SC-PTM service to which the SPS information is applicable, the repetition frequency is the repeated sending frequency of the service data, the scheduling identifier is particularly an identifier (G-RNTI) of the SC-MTCH scheduling, the PDCCH is used for scrambling and bearing the SPS information, the narrow band indication is used for indicating the narrow band to which the SPS information is applicable, after the terminal equipment receives the configuration information, the service data of the SC-PTM service can be received according to the configuration information, and the scheduling information of the service data of the SC-PTM service is not required to be sent on the, therefore, PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

With reference to the third implementation manner of the first aspect of the present application, in a fourth implementation manner of the first aspect of the present application, before the sending, by the access network device, the configuration information of SPS information to the terminal device, the method further includes:

the access network equipment configures SPS information through SC-MCCH control information or SIB, wherein the SIB comprises scheduling information of service data of SC-PTM service, the SC-MCCH control information comprises scheduling information of the service data of the SC-PTM service, and the scheduling information of the service data of the SC-PTM service is used for scheduling the service data of the SC-PTM service loaded on SC-MTCH.

Since the existing SC-MCCH control information has the scheduling information of the service data of the SC-PTM service, and the SIB20 is added with the field of the scheduling information of the service data corresponding to the SC-PTM service, the SPS information can be configured through the SC-MCCH control information or the SIB.

With reference to the first implementation manner of the first aspect of the present application or the third implementation manner of the first aspect of the present application, in the third implementation manner of the first aspect of the present application, 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 access network equipment to the terminal equipment also comprises SPS activation or deactivation information, the SPS activation or deactivation information is used for indicating the activation or deactivation of the SPS information, so that the terminal equipment knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, control information on a PDCCH is not received in the SPS activation, and dynamic scheduling is started after the SPS deactivation, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

In combination with the first aspect of the present application, in a sixth implementation manner of the first aspect of the present application, the method further includes:

the access network equipment sends SPS activation or deactivation information to the terminal equipment, the SPS activation or deactivation information is contained in DCI carried by PDCCH scrambled by SC-MCCH scheduling identification, and the SPS activation or deactivation information is used for indicating activation or deactivation of the SPS information.

Before or after the configuration information sent to the terminal equipment by the access network equipment, the terminal equipment is required to send SPS activation or deactivation information to the terminal equipment through the PDCCH, the SPS activation or deactivation information is carried in the DCI of the PDCCH scrambled by the SC-MCCH scheduling identifier, after the terminal equipment acquires the DCI, the terminal equipment knows 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 in the SPS activation, and starts dynamic scheduling after the SPS deactivation, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

With reference to the first aspect, the first embodiment of the first aspect, the second embodiment of the first aspect, the third embodiment of the first aspect, the fourth embodiment of the first aspect, the fifth embodiment of the first aspect, or the sixth embodiment of the first aspect of the present application, in a seventh embodiment of the first aspect of the present application, the control information is carried on an SC-MCCH, and the service data is carried on an SC-MTCH.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting service data of SC-PTM service.

A second aspect of the present application provides a multicast data scheduling method, including:

the terminal equipment receives configuration information of SPS information sent by access network equipment, wherein the SPS information is used for scheduling target data carried on a PDSCH, and the target data is control information or service data of SC-PTM service;

and the terminal equipment receives the target data sent by the access network equipment according to the configuration information.

If the target data is the control information of the SC-PTM service, the terminal equipment 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 equipment, and does not need a dynamic PDCCH for scheduling; if the target data is the service data of the SC-PTM service, the terminal equipment 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 for scheduling, thereby reducing the quantity of control information on the PDCCH, reducing the consumption of PDCCH resources and reducing the power consumption of the terminal equipment.

With reference to the second aspect of the present application, in a first implementation manner of the second aspect of the present application, the target data is control information of an SC-PTM service, the configuration information includes at least one of first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication, the first SPS period information is at least one of a modification period of the control information, 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 repetition number is a repeat transmission number of the control information, the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information is applicable.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting service data of SC-PTM service. If the target data is the control information of SC-PTM service, the SC-MCCH is mapped to PDSCH, so the control information of the SC-PTM service is scheduled on PDCCH, the configuration information comprises at least one of first SPS period information, repetition times, scheduling identification and narrow band indication, the first SPS period information is at least one of modification period of the control information of the SC-PTM service, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are repeated transmission times of the control information, the scheduling identification is particularly SC-RNTI for scrambling PDCCH bearing the SPS information, the narrow band indication is used for indicating the narrow band applicable to the SPS information, after the terminal equipment receives the configuration information, the control information of the SC-PTM service can be received according to the configuration information, and the access network equipment is not required to transmit the modulation of the control information of the SC-PTM service on PDCCH every period And the degree information, therefore, the PDCCH resource is saved, and the power consumption of the terminal equipment is also reduced.

With reference to the second aspect of the present application, in a second implementation manner of the second aspect of the present application, the target data is service data of an SC-PTM service, the configuration information includes at least one of second SPS period information, a corresponding relationship, a repetition number, a scheduling identifier, and a narrowband indication, the SPS period information is a period for repeatedly transmitting the service data, the corresponding relationship is used to indicate the SC-PTM service to which the SPS information applies, the repetition number is the repetition number of the service data, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information applies.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting service data of SC-PTM service. 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, the configuration information comprises at least one item of second SPS period information, a corresponding relation, a repetition frequency, a scheduling identifier and a narrow band indication, the SPS period information is a period for repeatedly sending the service data, the corresponding relation is used for indicating the SC-PTM service to which the SPS information is applicable, the repetition frequency is the repeated sending frequency of the service data, the scheduling identifier is particularly G-RNTI and is used for scrambling the PDCCH for bearing the SPS information, the narrow band indication is used for indicating the narrow band to which the SPS information is applicable, after the terminal equipment receives the configuration information, the service data of the SC-PTM service can be received according to the configuration information, and the scheduling information of the service data of the SC-PTM service on the PDCCH is not required to be sent by the, therefore, PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

With reference to the first embodiment of the second aspect of the present application or the second embodiment of the second aspect of the present application, in a third embodiment of the second aspect of the present application, 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 terminal equipment receives the configuration information sent by the access network equipment and also comprises SPS activation or deactivation information, the SPS activation or deactivation information is used for indicating the activation or deactivation of the SPS information, so that the terminal equipment knows 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 in the SPS activation, and starts dynamic scheduling after the SPS deactivation, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

In combination with the second aspect of the present application, in a third embodiment of the second aspect of the present application, the method further includes:

the terminal equipment receives SPS activation or deactivation information sent by the access network equipment, wherein the SPS activation or deactivation information is contained in Downlink Control Information (DCI) carried by a PDCCH scrambled by an SC-MCCH scheduling identifier;

and the terminal equipment determines the SPS activation or deactivation state according to the SPS activation or deactivation information.

Before or after the terminal equipment receives the configuration information sent by the access network equipment, the terminal equipment is required to send SPS activation or deactivation information to the terminal equipment through the PDCCH, the SPS activation or deactivation information is carried in the DCI of the PDCCH scrambled with the SC-MCCH scheduling identifier, after the terminal equipment acquires the DCI, the terminal equipment knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, control information on the PDCCH is not received in the SPS activation, and dynamic scheduling is started after the SPS is not activated, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

With reference to the second aspect, the first embodiment of the second aspect, the second embodiment of the second aspect, the third embodiment of the second aspect, and the fourth embodiment of the second aspect of the present invention, in a fifth embodiment of the second aspect of the present application, the control information is carried on an SC-MCCH, and the traffic data is carried on a single-cell multicast traffic channel SC-MTCH.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting data information of SC-PTM service.

A third aspect of the present application provides an access network device, including: the system comprises a processor, a transceiver and a memory, wherein the memory can be used for storing codes executed by the processor;

the transceiver is used for sending configuration information of semi-persistent scheduling (SPS) information to the terminal equipment, wherein the SPS information is used for scheduling target data loaded on a Physical Downlink Shared Channel (PDSCH), and the target data is control information or service data of a single-cell point-to-multipoint transmission 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 realize the technical characteristics that the access network equipment sends the same multicast data to a plurality of terminal equipment in a single cell, and integrates SPS technology, wherein the SPS technology allows the access network equipment to semi-statically configure wireless resources (which can be called SPS resources) and periodically allocate the SPS resources to a certain specific terminal equipment. Before the transceiver sends the target data, the processor needs to configure SPS information, the target data is control information or service data of SC-PTM service, the transceiver sends the configuration information configuring the SPS information to the terminal equipment, so that the terminal equipment can receive the target data according to the configuration information, if the target data is the control information of the SC-PTM service, the terminal equipment can know the resources occupied by the control information of the SC-PTM service on PDSCH according to the configuration information, and does not need dynamic PDCCH for scheduling; if the target data is the service data of the SC-PTM service, the terminal equipment 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 for scheduling, thereby reducing the quantity of control information on the PDCCH, reducing the consumption of PDCCH resources and reducing the power consumption of the terminal equipment.

With reference to the third aspect of the present application, in a first implementation manner of the third aspect of the present application, the target data is control information of an SC-PTM service, the configuration information includes at least one of first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication, where the first SPS period information is at least one of a modification period of the control information, 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 repetition number is a repetition transmission number of the control information, the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband PDCCH to which the SPS information applies.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service and the SC-MTCH is used for transmitting data information of SC-PTM service. If the target data is the control information of SC-PTM service, the SC-MCCH is mapped to PDSCH, so the control information of SC-PTM service is scheduled on PDCCH, the configuration information comprises at least one of first SPS period information, repetition times, scheduling identification and narrowband indication, the first SPS period information is at least one of modification period of the control information of SC-PTM service, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are repeated transmission times of the control information, the scheduling identification is particularly SC-RNTI for scrambling PDCCH bearing SPS information, the narrowband indication is used for indicating a narrow band applicable to the SPS information, after the terminal equipment receives the configuration information, the control information of SC-PTM service can be received according to the configuration information, and the access network equipment is not required to transmit the modulation of the control information of SC-PTM service on PDSCH in each period And the degree information, therefore, the PDCCH resource is saved, and the power consumption of the terminal equipment is also reduced.

In combination with the first embodiment of the third aspect of the present application, in the second embodiment of the third aspect of the present application,

the processor is configured to configure SPS information through a system information block SIB, where the SIB includes configuration information of single-cell multicast control channel SC-MCCH control information, and the configuration information of the SC-MCCH control information is used to schedule control information of an SC-PTM service that is carried on an SC-MCCH.

With reference to the third aspect of the present application, in a third implementation manner of the third aspect of the present application, the target data is service data of an SC-PTM service, the configuration information includes at least one of second SPS period information, a correspondence relationship, a repetition number, a scheduling identifier, and a narrowband indication, the SPS period information is a period for repeatedly transmitting the service data, the correspondence relationship is used to indicate the SC-PTM service to which the SPS information applies, the repetition number is the repetition number of the service data, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information applies.

The configuration information comprises at least one of second SPS period information, a corresponding relation, repetition times, a scheduling identifier and a narrow band indication, the SPS period information is a period for repeatedly sending service data, the corresponding relation is used for indicating SC-PTM service applicable to the SPS information, the repetition times are the repeated sending times of the service data, the scheduling identifier is specifically G-RNTI and is used for scrambling PDCCH bearing the SPS information, the narrow band indication is used for indicating the narrow band applicable to the SPS information, after the terminal equipment receives the configuration information, the service data of the SC-PTM service can be received according to the configuration information, the scheduling information of the service data of the SC-PTM service on the PDCCH is not required to be sent by the access network equipment in each period, therefore, PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

With reference to the third embodiment of the third aspect of the present application, in the fourth embodiment of the third aspect of the present application,

the processor is configured to configure SPS information through SC-MCCH control information or SIB, where the SIB includes scheduling information of service data of an SC-PTM service, the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, and the scheduling information of the service data of the SC-PTM service is used to schedule the service data of the SC-PTM service that is carried on a single-cell multicast traffic channel SC-MTCH.

With reference to the first implementation manner of the third aspect of the present application or the third implementation manner of the third aspect, in a fifth implementation manner of the third aspect of the present application, 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 to the terminal equipment further comprises SPS activation or deactivation information, the SPS activation or deactivation information is used for indicating activation or deactivation of the SPS information, so that the terminal equipment knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, control information on a PDCCH is not received in the SPS activation, and dynamic scheduling is started after the SPS deactivation, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

In combination with the third aspect of the present application, the third embodiment of the third aspect of the present application,

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 downlink control information DCI carried by a PDCCH scrambled by an SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

Before or after the configuration information sent to the terminal equipment by the transceiver, the transceiver also needs to send SPS activation or deactivation information to the terminal equipment through the PDSCH, the SPS activation or deactivation information is carried in DCI of the PDCCH scrambled with the SC-MCCH scheduling identifier, after the terminal equipment acquires the DCI, the terminal equipment knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, does not receive control information on the PDCCH in the SPS activation, and starts dynamic scheduling after the SPS is not activated, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

With reference to the third aspect, the first embodiment of the third aspect, the second embodiment of the third aspect, the third embodiment of the third aspect, the fourth embodiment of the third aspect, the fifth embodiment of the third aspect, or the sixth embodiment of the third aspect of the present invention, in a seventh embodiment of the third aspect of the present invention, the control information is carried on an SC-MCCH, and the service data is carried on an SC-MTCH.

A fourth aspect of the present application provides a terminal device, including: a processor, a receiver, a transmitter, an antenna, and a memory, wherein the memory may 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 carried on a PDSCH (physical downlink shared channel), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

and the receiver is used for receiving the target data sent by the access network equipment according to the configuration information.

If the target data received by the receiver is the control information of the SC-PTM service, 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 equipment, and does not need a dynamic PDCCH for scheduling; if the target data received by the receiver 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 a dynamic PDCCH (physical Downlink control channel) is not required for scheduling, so that the quantity of control information on the PDCCH is reduced, the consumption of PDCCH resources is reduced, and the power consumption of terminal equipment is reduced.

With reference to the fourth aspect of the present application, in a first implementation manner of the fourth aspect of the present application, the target data is control information of an SC-PTM service, the configuration information includes at least one of first SPS period information, a repetition number, a scheduling identifier, and a narrowband indication, the first SPS period information is at least one of a modification period of the control information, 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 repetition number is a repeat transmission number of the control information, the scheduling identifier is used to scramble a physical downlink control channel PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information is applicable.

The configuration information received by the receiver comprises at least one item of first SPS period information, repetition times, a scheduling identifier and a narrow band indication, the first SPS period information is at least one item of modification period of control information of SC-PTM service, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are repeated sending times of the control information, the scheduling identifier is SC-RNTI specifically, a PDCCH for scrambling SPS information, a narrowband indication for indicating a narrowband to which the SPS information applies, after the receiver receives the configuration information, the receiver can receive the control information of the SC-PTM service according to the configuration information, and the access network equipment does not need to send the scheduling information of the control information of the SC-PTM service on the PDCCH every period, so the PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

With reference to the fourth aspect of the present application, in a second implementation manner of the fourth aspect of the present application, the target data is service data of an SC-PTM service, the configuration information includes at least one of second SPS period information, a corresponding relationship, a repetition number, a scheduling identifier, and a narrowband indication, the SPS period information is a period for repeatedly transmitting the service data, the corresponding relationship is used to indicate the SC-PTM service to which the SPS information applies, the repetition number is the repetition number of the service data, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information applies.

The configuration information received by the receiver comprises at least one of second SPS period information, a corresponding relation, a repetition frequency, a scheduling identifier and a narrow band indication, the SPS period information is a period for repeatedly sending the service data, the corresponding relation is used for indicating SC-PTM service applicable to the SPS information, the repetition frequency is the repeated sending frequency of the service data, the scheduling identifier is specifically G-RNTI and is used for scrambling PDCCH bearing the SPS information, the narrow band indication is used for indicating the narrow band applicable to the SPS information, after the receiver receives the configuration information, the receiver can receive the service data of the SC-PTM service according to the configuration information, the scheduling information of the service data of the SC-PTM service on the PDCCH is not required to be sent by each period of the access network equipment, therefore, PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

With reference to the first implementation manner of the fourth aspect of the present application or the second implementation manner of the fourth aspect of the present application, in the third implementation manner of the fourth aspect of the present application, 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.

In combination with the fourth aspect of the present application, the third embodiment of the fourth aspect of the present application,

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 DCI carried by a PDCCH scrambled by an SC-MCCH scheduling identifier;

a processor for determining a status of SPS activation or deactivation from the SPS activation or deactivation information.

Before or after the receiver receives the configuration information sent by the access network device, the receiver also needs to send SPS activation or deactivation information to the terminal device through the PDCCH, the SPS activation or deactivation information is carried in the DCI of the PDCCH scrambled with the SC-MCCH scheduling identifier, after the terminal device obtains the DCI, the receiver knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, control information on the PDCCH is not received in the SPS activation, and dynamic scheduling is started after the SPS deactivation, so that the terminal device can more accurately know the SPS activation and deactivation states.

With reference to the fourth aspect, the first embodiment of the fourth aspect, the second embodiment of the fourth aspect, the third embodiment of the fourth aspect, and the fourth embodiment of the fourth aspect of the present invention, in a fifth embodiment of the fourth aspect of the present invention, the control information is carried on an SC-MCCH, and the service data is carried on a single-cell multicast traffic channel SC-MTCH.

A fifth aspect of the present application provides an access network device, including:

a sending module, configured to send configuration information of SPS information to a terminal device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of an SC-PTM service;

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 realize the technical characteristics that the access network equipment sends the same multicast data to a plurality of terminal equipment in a single cell, and integrates SPS technology, wherein the SPS technology allows the access network equipment to semi-statically configure wireless resources (which can be called SPS resources) and periodically allocate the SPS resources to a certain specific terminal equipment. Before a sending module sends target data, SPS information needs to be configured, the target data is control information or service data of SC-PTM service, a transceiver sends the configuration information for configuring the SPS information to a terminal device, so that the terminal device can receive the target data according to the configuration information, if the target data is the control information of the SC-PTM service, the terminal device can know resources occupied by the control information of the SC-PTM service on a PDSCH according to the configuration information, and dynamic PDCCH (physical Downlink control channel) scheduling is not needed; if the target data is the service data of the SC-PTM service, the terminal equipment 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 for scheduling, thereby reducing the quantity of control information on the PDCCH, reducing the consumption of PDCCH resources and reducing the power consumption of the terminal equipment.

With reference to the fifth aspect of the present application, in a first implementation manner of the fifth aspect of the present application, the access network device further includes: a processing module;

the processing module is used for configuring SPS information through SIB, the SIB comprises configuration information of SC-MCCH control information, and the configuration information of the SC-MCCH control information is used for scheduling control information of SC-PTM service carried on SC-MCCH.

Or the like, or, alternatively,

the processing module is configured to configure SPS information through SC-MCCH control information or SIB, where the SIB includes scheduling information of service data of an SC-PTM service, the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, and the scheduling information of the service data of the SC-PTM service is used to schedule the service data of the SC-PTM service that is carried on a single-cell multicast service channel SC-MTCH.

In combination with the fifth aspect of the present application, in the second embodiment of the fifth aspect of the present application,

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 DCI carried by a PDCCH scrambled by an SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

A sixth aspect of the present application provides a terminal device, including:

a receiving module, configured to receive configuration information of SPS information sent by an access network device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of an 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.

If the target data received by the receiving module is the control information of the SC-PTM service, 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 equipment, and does not need a dynamic PDCCH for scheduling; if the target data received by the receiving module is the service data of the SC-PTM service, the resources occupied by the service data of the SC-PTM service on the PDSCH can be known according to the received configuration information, and a dynamic PDCCH (physical Downlink control channel) is not required for scheduling, so that the quantity of control information on the PDCCH is reduced, the consumption of PDCCH resources is reduced, and the power consumption of terminal equipment is reduced.

With reference to the sixth aspect of the present application, in a first implementation manner of the sixth aspect of the present application, 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 DCI carried by a PDCCH scrambled by an SC-MCCH scheduling identifier;

and the processing module is used for determining the SPS activation or deactivation state according to the SPS activation or deactivation information.

Before or after the receiving module receives the configuration information sent by the access network equipment, the access network equipment further needs to send SPS activation or deactivation information to the terminal equipment through the PDCCH, the SPS activation or deactivation information is carried in the DCI of the PDCCH scrambled with the SC-MCCH scheduling identifier, after the receiving module obtains the DCI, the processing module knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, control information on the PDCCH is not received in the SPS activation, and dynamic scheduling is started after the SPS deactivation, so that the terminal equipment can more accurately know the SPS activation and deactivation states.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts.

FIG. 1 is a schematic diagram of an application scenario or architecture provided herein;

figure 2 is a schematic diagram of a system frame of an SC-MCCH provided in the present application;

fig. 3 is a schematic diagram of a subframe location where an SC-MCCH appears according to the present application;

fig. 4 is a diagram of MP 48 of SC-MCCH provided in the present application;

figure 5 is a schematic diagram of the RP of the SC-MCCH provided herein;

FIG. 6 is a schematic diagram of an SPS configuration provided herein;

fig. 7 is a signaling flow diagram of an embodiment of a multicast data scheduling method provided in the present application;

fig. 8 is a signaling flow diagram of another embodiment of a multicast data scheduling method provided in the present application;

fig. 9 is a schematic structural diagram of an embodiment of an access network device provided in the present application;

fig. 10 is a schematic structural diagram of an embodiment of a terminal device provided in the present application;

fig. 11 is a schematic structural diagram of another embodiment of an access network device provided in the present application;

fig. 12 is a schematic structural diagram of another embodiment of a terminal device provided in the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

First, a system architecture or scenario in which the present application is applied will be briefly described.

The application is applied to a wireless communication network system and can be applied to an LTE-MTC system, as shown in figure 1, access network equipment is connected with a core network, an SC-PTM technology is adopted, a cell covered by the access network equipment comprises N terminal equipment, a group of terminal equipment receiving the same SC-PTM service uses the same downlink configuration to receive the SC-PTM service, and the access network equipment does not need to establish a communication link with each terminal equipment.

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 the 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 terminal devices that are mobile or stationary within a cell.

The terminal device can be a mobile phone, an intelligent terminal, a multimedia device, a streaming media device, an MTC terminal device, and the like.

First, the existing SC-PTM technology is introduced, the SC-PTM technology is a technology for simultaneously transmitting the same SC-PTM service to a plurality of terminal devices by using shared time-frequency resources, a group of terminal devices receiving the same SC-PTM service use the same downlink configuration to receive the SC-PTM service, and a communication link for each UE is not required to be established. The SC-PTM has a control channel SC-MCCH and a data channel SC-MTCH, and the two logical channels are mapped to a physical downlink shared channel PDSCH, wherein the SC-MCCH contains control information of the SC-PTM service, and the SC-MTCH is used for transmitting service data of the SC-PTM service. The control information of SC-PTM service is sent in cycles, the SC-MCCH cycle has Repetition Period (RP) and Modification Period (MP), each Repetition Period sends the control information of SC-PTM service once, and one Modification Period contains a plurality of Repetition periods and the content of the control information of SC-PTM service in the Modification Period is unchanged.

In the SC-PTM technique, a cell schedules SC-MTCH service data of an SC-PTM service to a plurality of terminal equipments simultaneously via G-RNTIs (which may be understood as identities of SC-MTCH scheduling information), and each G-RNTI may be associated with an SC-PTM service, such as a software upgrade service.

Taking the SC-PTM service received by the terminal device side as an example, the specific process is as follows:

firstly, terminal equipment acquires an SIB from access network equipment;

among the existing SIBs, there are many types of SIBs, for example, SIB3 contains parameters for cell selection and reselection, and SIB20 contains configuration information for transmitting control information of the SC-PTM service, i.e., configuration information of the SC-MCCH. Since the SC-MCCH is mapped to the PDSCH, control information on the PDCCH is needed for scheduling, the control information is scrambled by SC-RNTI (which can be understood as the identity of the SC-MCCH scheduling information), the terminal device can know how to receive the SC-MCCH control information of the SC-PTM service through the configuration information of the SC-MCCH, and the PDCCH control information and the SC-MCCH control information are transmitted on the same subframe in the prior art.

SIB20 is as follows:

SIB20 specifically includes:

1. RP and Offset (SC-MCCH-Offset) of the SC-MCCH, that is, a boundary where the SC-MCCH period occurs, PDCCH and SC-MCCH occur on each System Frame (SFN) that satisfies the formula SFN mod SC-MCCH-repetition period ═ SC-MCCH. For example, if SC-MCCH-repetition period is rf16, i.e. 16 radio frame radio frames, and SC-MCCH-Offset is 1, the system frame where PDCCH and SC-MCCH appear is shown in fig. 2.

2. SC-MCCH transmission time (SC-MCCH-duration) indicates SC-MCCH transmission duration, SC-MCCH start position (SC-MCCH-FirstSubframe), and SC-MCCH start position (SC-MCCH-FirstSubframe) is shown in fig. 3, for example, SC-MCCH-FirstSubframe is 4 and SC-MCCH-duration is 3 in one system frame.

3. MP of SC-MCCH, for example MP 48, is shown in fig. 4. As shown in fig. 5, the specific configuration of the SC-MCCH is that an SC-MCCH is repeatedly transmitted in each MP, where a repetition period is RP, and in one MP, the contents of the SC-MCCH are the same, when the SC-MCCH changes, PDCCH control information including a modification notification is transmitted, and the modification notification is SC-MCCH change notification, and when a terminal device detects an SC-N-RNTI (which may be understood as an identifier of the modification notification) on the PDCCH, the terminal device determines that the modification notification is detected, and re-acquires the SC-MCCH. When acquiring the SC-MCCH, the terminal equipment needs to detect PDCCH control information scrambled by SC-RNTI (which can be understood as an identification of SC-MCCH scheduling information) to acquire the SC-MCCH scheduling information.

Secondly, the terminal equipment receives PDCCH control information (marked as first PDCCH control information) scrambled by SC-RNTI (which can be understood as identification of SC-MCCH scheduling information) according to the configuration information in the SIB 20;

the terminal equipment can know SC-MCCH scheduling information according to the first PDCCH control information, the SC-MCCH scheduling information is scheduling information for sending SC-MCCH control information, the SC-MCCH control information can be received according to the SC-MCCH scheduling information, and the SC-MCCH control information content is as follows:

the SC-MCCH control information specifically includes: an identification MBMSSessionInfo (TMGI, SessionID) of the SC-PTM service, an identification G-RNTI (here, BIT strong (SIZE (16))) for receiving SC-MTCH scheduling information, and time information SC-MTCH-schedulingInfo for receiving SC-MTCH service data. Since the SC-MTCH is also mapped on the PDSCH, one PDCCH control information, which is scrambled by the G-RNTI (which can be understood as the identity of the SC-MTCH scheduling information), is needed for scheduling.

And fourthly, the terminal equipment receives PDCCH control information (marked as second PDCCH control information) scrambled by G-RNTI (which can be understood as the identification of SC-MTCH scheduling information) according to the SC-MCCH control information.

And fifthly, the terminal equipment obtains SC-MTCH scheduling information according to the second PDCCH control information, the SC-MTCH scheduling information is the scheduling information of SC-MTCH service data of the SC-PTM service, and the resources occupied by the SC-MTCH service data in a data channel SC-MTCH are known according to the scheduling information of the SC-MTCH service data, so that the SC-MTCH service data is received.

The terminal equipment receives the SC-PTM service data through the above five steps. In order to realize the coverage enhancement of SC-PTM, SIB20, the first PDCCH, the second PDCCH, the control information of SC-PTM service and the service data of SC-PTM service need to be repeatedly transmitted, the scheduling of the service data of SC-PTM service of the control information of SC-PTM service needs to be realized by the control information on the PDCCH, a large amount of PDCCH resources are consumed, and for SC-PTM terminal equipment, the SC-PTM terminal equipment generally works on a narrow band, the PDCCH resources are relatively limited, the terminal equipment needs to receive more control information, and the receiving power consumption is also increased.

Since the Semi-persistent Scheduling (SPS) technique has the characteristics of "one-time allocation and multiple-time use", it is not necessary to issue Downlink Control Information (DCI) to the terminal device in each subframe, so that the overhead of PDCCH resources can be reduced. The terminal device configured with SPS scheduling may perform dynamic scheduling at the same time, so it needs to distinguish whether PDCCH control information is used for dynamic scheduling or SPS scheduling. Therefore, the terminal device configured with SPS scheduling has 2 identities: a normal C-RNTI used for dynamic scheduling; the other is SPS-C-RNTI, which is used for SPS scheduling and is configured through Radio Resource Control (RRC) messages.

For downlink SPS, if downlink SPS is configured and activated, the terminal device may consider that SPS downlink resources are allocated in a subframe (referred to as SPS subframe) satisfying the following formula (at this time, PDCCH control information does not need to be received):

(10×SFN+subframe)＝[(10×SFN_start _time+subframe_start _time)+N×semiPersistSchedulingIntervalDL]modulo 10240；

wherein N is>0 (initially 0, plus 1 every cycle), SFN_start _timeAnd subframes_start _timeA system frame number and a subframe number of a PDCCH indicating downlink SPS activation are received for the UE. The result of the modulo 10240 is that the system frame is represented by 10 bits, the value range is 0 to 1023, and the inversion is needed every 1024 system frames. The semipersistent scheduling intervaldl is used to indicate that the terminal device is allocated SPS resources once every second semipersistent scheduling intervaldl subframes, i.e., a period of the SPS. As shown in fig. 6, if the PDCCH control information indicating SPS activation has SFN 1, subframe 4, and semi persistent scheduling intervaldl 7, which indicate that the start time is the 4 th subframe of the first SFN, and the SPS period (or referred to as the SPS interval) is 7 subframes, the SPS resources are the shaded subframes in fig. 7. However, in the existing SPS technology, the access network device is a specific terminal device, and under the situation that the SC-PTM scenario of the LTE-MTC communication system is not satisfied, there are many terminal devices and coverage levels are different.

The following describes a multicast data scheduling method for interaction between an access network device and a terminal device in the above system architecture or scenario by an embodiment.

Referring to fig. 7, an embodiment of the present application provides a method for scheduling multicast data, including:

701. the access network equipment sends the configuration information of the SPS information to the terminal equipment, and the terminal equipment receives the configuration information of the SPS information sent by the access network equipment;

in this embodiment, in order to implement that the access network device sends the same target data to the MTC-type terminal device in its coverage, where the target data is control information or service data of an SC-PTM service, SPS information needs to be preconfigured, the SPS information is used for scheduling the target data carried on the PDSCH, and the terminal device receives configuration information of the SPS information sent by the access network device.

702. The access network equipment sends target data to the terminal equipment according to the configuration information, and the terminal equipment receives the target data sent by the access network equipment according to the configuration information;

in this embodiment, after determining and sending the configuration information of the SPS information, the access network device schedules target data carried on the PDSCH according to the configuration information, and sends the target data to the terminal device, and after obtaining the configuration information, the terminal device can know how the access network device configures the SPS information through the configuration information, and after knowing how the target data is scheduled, the access network device receives the target data sent by the access network device.

In the embodiment of the application, as the SPS technology is adopted, the SC-PTM service indicated by the SPS information is periodically and repeatedly sent, the SPS information needs to be configured before the access network equipment sends the target data, the target data is the control information or the service data of the SC-PTM service, and the configuration information for configuring the SPS information is sent to the terminal equipment, so that the terminal equipment can obtain the target data according to the configuration information, if the target data is the control information of the SC-PTM service, the terminal equipment 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 to be scheduled by a dynamic PDCCH; if the target data is the service data of the SC-PTM service, the terminal equipment 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 for scheduling, thereby reducing the quantity of control information on the PDCCH, reducing the consumption of PDCCH resources and reducing the power consumption of the terminal equipment.

Alternatively, in some embodiments of the present application,

the target data is control information of SC-PTM service, the configuration information comprises at least one item of first SPS period information, repetition times, a scheduling identifier and narrow band indication, the first SPS period information is at least one item of modification period of the control information, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are the repeated sending times of the control information, the scheduling identifier is used for scrambling PDCCH bearing the SPS information, and the narrow band indication is used for indicating a narrow band applicable to the SPS information;

or the like, or, alternatively,

the object data is service data of SC-PTM service, the configuration information comprises at least one item of second SPS period information, a corresponding relation, repetition times, a scheduling identifier and a narrow band indication, the SPS period information is a period for repeatedly sending the service data, the corresponding relation is used for indicating the SC-PTM service applicable to the SPS information, the repetition times is the repeated sending times of the service data, the scheduling identifier is used for scrambling PDCCH bearing the SPS information, and the narrow band indication is used for indicating the narrow band applicable to the SPS information.

In the SC-PTM technique, there is one control channel SC-MCCH and one data channel SC-MTCH, both of which are mapped to PDSCH, wherein the SC-MCCH transmits control information of the SC-PTM service and the SC-MTCH transmits data information of the SC-PTM service, and thus, in the above-described embodiment, the target data can be divided into two types, namely, control information of the SC-PTM service and service data of the SC-PTM service. The existing SIB20 includes configuration information of SC-MCCH control information; the existing SC-MCCH control information comprises configuration information of SC-MTCH service data transmission, in order to save PDCCH resources, SPS information needs to be configured before access network equipment transmits the configuration information of the SPS information to terminal equipment, and the obtained configuration information provides the following two schemes that (I) when target data is the control information of SC-PTM service, the configuration information of the SPS information is configured through SIB (SIB 20); and secondly, when the target data is service data of SC-PTM service, configuring the configuration information of SPS information through SC-MCCH control information or SIB (SIB 20). Specifically, the method comprises the following steps:

when the target data is the control information of SC-PTM service, the configuration information of SPS information is configured through SIB (SIB 20);

1. configuring first SPS period information;

there are four main ways: firstly, MP of control information in SIB20 is used as a first SPS period; in a second mode, the first SPS period is a positive integer multiple of MPs, that is, a plurality of MPs are one first SPS period; mode three, using the RP of the control information in SIB20 as the first SPS period; in a fourth mode, the first SPS periods are positive integer multiples of RPs, that is, several RPs are one first SPS period, and in a specific implementation, the first SPS periods may also be set according to requirements, which is not limited specifically.

2. Configuring the repetition times;

considering that the access network device may use different coverage levels in transmitting the same or different SC-PTM services, when configuring the number of repetitions, the access network device may select, according to the different coverage levels, the configuration modes of SPS patterns with different repetitions, where the number of repetitions may form several sets, and the association table of the configuration modes of SPS patterns with different repetitions selected by the comprehensive coverage level is shown in table 1 below.

TABLE 1

SPS mode configuration	Coverage rating (number of repetitions)
		SPS mode 1	4,8,16
Unconfigured SPS mode	32,64,128
		SPS mode 2	256,512,1024
SPS mode 3	2048

3. Configuring a scheduling identifier;

in the text, the PDCCH can also be a PDCCH used by an MTC terminal, namely an MPDCCH, so that when the terminal detects the PDCCH, the SPS information can be obtained through the PDCCH resource when the PDCCH scrambled with the SC-RNTI is detected. Alternatively, a new SPS-SC-RNTI is introduced for scrambling the PDCCH carrying SPS information.

4. A narrowband indication is configured.

For different terminal devices, different operating narrow bands may need to be selected, and the access network device may select a configuration mode with different SPS modes according to different narrow band information, as shown in table 2.

TABLE 2

SPS mode configuration	Narrow-band information
		SPS mode
1	Narrow strip 1
		Unconfigured SPS mode	Narrow band 2
SPS mode 2	Narrow band 3
		SPS mode 3	Narrow band 4

And secondly, when the target data is service data of SC-PTM service, configuring the configuration information of SPS information through SC-MCCH control information or SIB (SIB 20).

The existing SC-MCCH control information contains configuration information of service data of SC-PTM, SIB20 only contains configuration information of SC-MCCH control information, but the configuration information of service data of SC-PTM may be set in SIB20 by adding or modifying fields in SIB20, and the configuration information configuring SPS information through SC-MCCH control information or SIB (SIB20) includes:

1. configuring second SPS period information;

there are two main ways: mode one, using a repeated transmission interval (period) of the traffic data as a second SPS period; mode two, the second SPS period is several times of the repeated transmission interval (period) of the traffic data.

2. Configuring a corresponding relation;

for different SC-PTM services, different SPS mode configurations need to be selected, and the service identifier of the SC-PTM service is generally G-RNTI as shown in table 3.

TABLE 3

SPS mode configuration	Service identification
		SPS mode 1	G-RNTI 1
Unconfigured SPS mode	G-RNTI 2
		SPS mode 2	G-RNTI 3
SPS mode 3	G-RNTI 4

3. Configuring the repetition times;

the method is as described in 1 (a).

4. Configuring a scheduling identifier;

and scrambling the PDCCH carrying the SPS information by the G-RNTI, so that the terminal detects the PDCCH scrambled with the G-RNTI when detecting the PDCCH, and the SPS information can be obtained by the PDCCH resource. Alternatively, a new SPS-G-RNTI is introduced for scrambling the PDCCH carrying SPS information.

5. A narrowband indication is configured.

As shown at 4 in (one).

In the foregoing embodiment, the configuration information and the configuration SPS information are described, in order to make the terminal device know more clearly when to start dynamic scheduling and SPS, the access network device further needs to send SPS activation or deactivation information, the first way is to include the SPS activation or deactivation information in the configuration information, the second way is not included in the configuration information, the first way is easy to implement, and it is not necessary to describe, and the second way is specifically as follows:

referring to fig. 8, an embodiment of the present application provides a method for scheduling multicast data, including:

801. the access network equipment sends the configuration information of the SPS information to the terminal equipment, and the terminal equipment receives the configuration information of the SPS information sent by the access network equipment;

see step 701 of fig. 7 for further details.

802. The access network equipment sends SPS activation or deactivation information to the terminal equipment, and the terminal equipment receives the SPS activation or deactivation information sent by the access network equipment;

in this embodiment, the access network device further needs to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in DCI carried by a PDCCH scrambled by SPS-SC-RNTI (or SC-RNTI), and after receiving the SPS activation or deactivation information, the terminal device can know when SPS or dynamic scheduling starts or ends according to the SPS activation or deactivation information.

803. And the access network equipment sends the target data to the terminal equipment according to the configuration information, and the terminal equipment receives the target data sent by the access network equipment according to the configuration information.

In this embodiment, after determining and sending the configuration information of the SPS information, the access network device schedules target data carried on the PDSCH according to the configuration information, and sends the target data to the terminal device, and after obtaining the configuration information, the terminal device can know how the access network device configures the SPS information by using the configuration information and integrating the SPS activation or deactivation information in step 802, and after knowing how the target data is scheduled, the access network device receives the target data sent by the access network device.

In the embodiment of the application, the access network equipment sends the SPS activation or deactivation information to the terminal equipment, so that the terminal equipment can receive the target data more accurately.

It should be noted that, in the embodiment shown in fig. 8, step 802 may also be before step 801, or may be after step 801, but must be before step 803.

It should be noted that, in the embodiment shown in fig. 8, the main configuration modes of the SPS activation or deactivation information include: scrambling the loaded PDCCH through SPS-SC-RNTI, and loading SPS activation or deactivation information in the PDCCH; and in the second mode, the PDCCH is scrambled through the SC-RNTI, and the SPS activation or deactivation information is loaded in the PDCCH.

It should be noted that the access network device may further send SPS activation replenishment information to the terminal device, where the SPS activation replenishment information is configuration information of PDCCH control information replenished after SPS activation, and in view of that after SPS activation, the access network device does not send PDCCH control information any more, and if there is interest in SC-PTM service by the terminal device at this time, the PDCCH control information is required to be replenished and sent in the SPS activation period to indicate a specific time to the terminal device to receive PDCCH, so as to receive SC-PTM service, so that the terminal device may not detect PDCCH when the access network device does not send PDCCH control signals, so as to reduce power consumption. The device is specifically provided with: configuring a period of the supplemental PDCCH control signal, where the period may be configured in four manners of the above SPS period, and the terminal device may calculate a position of the supplemental PDCCH control signal according to the MP or RP configured in the SIB20 and the offset information; and secondly, configuring offset information of the supplemental PDCCH control information, wherein the offset information can be a specific subframe number, a system frame number, a plurality of times of MP or a plurality of times of RP, relative to the PDCCH for activating the SPS resource.

The foregoing embodiment describes a multicast data scheduling method, and the following embodiment describes an access network device and a terminal device separately.

Referring to fig. 9, an embodiment of the present application provides an access network device 900, including: a processor 901, a transceiver 902, and a memory 903, wherein the memory 903 may be used to store codes executed by the processor 901;

a transceiver 902, configured to send configuration information of SPS information to a terminal device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

and a transceiver 902, configured to send the target data to the terminal device according to the configuration information.

In the embodiment of the present application, if the target data that the transceiver 902 needs to send 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 sent by the transceiver 902, and does not need to dynamically schedule the PDCCH; if the transceiver 902 needs the target data to be 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 sent by the transceiver 902, and does not need to dynamically schedule the PDCCH, thereby reducing the amount of control information on the PDCCH, reducing the consumption of PDCCH resources, and reducing the power consumption of the terminal device.

Alternatively, in some embodiments of the present application,

or the like, or, alternatively,

In the embodiment of the application, a control channel SC-MCCH and a data channel SC-MTCH exist in the SC-PTM technology, and the two channels are mapped to a PDSCH, wherein the SC-MCCH is used for transmitting control information of SC-PTM service, and the SC-MTCH is used for transmitting data information of the SC-PTM service. If the target data is the control information of the SC-PTM service, the control information of the SC-PTM service is scheduled on the PDCCH because the SC-MCCH is mapped on the PDSCH, the configuration information comprises at least one of first SPS period information, repetition times, a scheduling identifier and a narrow band indication, 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 repetition times are the repeated transmission times of the control information, the scheduling identifier is particularly SC-RNTI used for scrambling the PDCCH carrying the SPS information, the narrow band indication is used for indicating a narrow band applicable to the SPS information, after the terminal equipment receives the configuration information, the control information of the SC-PTM service is received according to the configuration information, and the transceiver 902 is not required to transmit the scheduling information of the control information of the SC-PTM service on the PDSCH every period, therefore, PDCCH resources are saved, and the power consumption of the terminal equipment is also reduced.

Alternatively, in some embodiments of the present application,

a processor 901, configured to configure SPS information through SIB, where the SIB includes configuration information of SC-MCCH control information, and the configuration information of SC-MCCH control information is used to schedule control information of an SC-PTM service carried on an SC-MCCH;

or the like, or, alternatively,

a processor 901, configured to configure SPS information through SC-MCCH control information or SIB, where the SIB includes scheduling information of service data of an SC-PTM service, the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, and 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 a single-cell multicast traffic channel SC-MTCH.

In the embodiment of the present application, since the configuration information of the SC-MCCH control information exists in the existing SIB20, 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 processor 901 may simply implement the SPS configuration information according to the SIB; since the existing SC-MCCH control information includes scheduling information of service data of the SC-PTM service, and a field corresponding to the scheduling information of the service data of the SC-PTM service is added in SIB20, so that the configuration of SPS information by processor 901 may be implemented by SC-MCCH control information or SIB.

Optionally, in some embodiments of the present application, 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.

In this embodiment, the configuration information sent by the transceiver 902 to the terminal device further includes SPS activation or deactivation information, where 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 time and the SPS deactivation time according to the SPS activation and deactivation information, does not receive control information on the PDCCH within the SPS activation, and starts dynamic scheduling after the SPS deactivation, so that the terminal device can more accurately know states of the SPS activation and deactivation.

Alternatively, in some embodiments of the present application,

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 downlink control information DCI carried by the PDCCH scrambled by the SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of SPS information.

In the embodiment of the present application, before or after the configuration information sent to the terminal device by the transceiver 902, the transceiver 902 further needs to send SPS activation or deactivation information to the terminal device through the PDSCH, where the SPS activation or deactivation information is carried in DCI of the PDCCH scrambled with the SC-MCCH scheduling identifier, 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, does not receive control information on the PDCCH in the SPS activation, and starts dynamic scheduling after the SPS deactivation, so that the terminal device can more accurately know the SPS activation and deactivation states.

Referring to fig. 10, an embodiment of the present application provides a terminal device 1000, including: a processor 1001, a receiver 1002, a transmitter 1003, an antenna 1004, and a memory 1005, wherein the memory 1005 may be used to store code executed by the processor 1001;

a receiver 1002, configured to receive configuration information of SPS information sent by an access network device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

a receiver 1002, configured to receive target data sent by an access network device according to the configuration information.

In the embodiment of the present application, 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 for scheduling; 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 for scheduling, thereby reducing the amount of control information on the PDCCH, reducing the consumption of PDCCH resources, and reducing the power consumption of the terminal device.

Alternatively, in some embodiments of the present application,

the target data is control information of SC-PTM service, the configuration information comprises at least one item of first SPS period information, repetition times, a scheduling identifier and narrow band indication, the first SPS period information is at least one item of modification period of the control information, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are the repeated sending times of the control information, the scheduling identifier is used for scrambling a Physical Downlink Control Channel (PDCCH) carrying the SPS information, and the narrow band indication is used for indicating a narrow band applicable to the SPS information;

or the like, or, alternatively,

Alternatively, in some embodiments of the present application,

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 downlink control information DCI carried by a PDCCH scrambled by an SC-MCCH scheduling identifier;

a processor 1001 configured to determine a status of SPS activation or deactivation according to the SPS activation or deactivation information.

In this embodiment, before or after the receiver 1002 receives the configuration information sent by the access network device, the access network device further needs to send SPS activation or deactivation information to the terminal device through the PDCCH, where the SPS activation or deactivation information is carried in the DCI of the PDCCH scrambled by the SC-MCCH scheduling identifier, after the terminal device acquires the DCI, the processor 1001 knows the SPS activation time and the SPS deactivation time according to the SPS activation and deactivation information, does not receive control information on the PDCCH in the SPS activation, and starts dynamic scheduling after the SPS deactivation, so that the terminal device can more accurately know the SPS activation and deactivation states.

Referring to fig. 11, an embodiment of the present application provides an access network device, including: a sending module 1101 and a processing module 1102;

a sending module 1101, configured to send configuration information of SPS information to a terminal device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of an SC-PTM service;

a sending module 1101, configured to send target data to the terminal device according to the configuration information;

it should be noted that, the processing module 1102 does not execute the operation, and may or may not exist.

Optionally, in some embodiments of the present application, the access network device further includes: a processing module 1102;

a processing module 1102, configured to configure SPS information through SIB, where the SIB includes configuration information of SC-MCCH control information, and the configuration information of SC-MCCH control information is used to schedule control information of an SC-PTM service that is carried on an SC-MCCH.

Or the like, or, alternatively,

a processing module 1102, configured to configure SPS information through SC-MCCH control information or SIB, where the SIB includes scheduling information of service data of an SC-PTM service, the SC-MCCH control information includes scheduling information of the service data of the SC-PTM service, and the scheduling information of the service data of the SC-PTM service is used to schedule the service data of the SC-PTM service that is carried on an SC-MTCH.

Alternatively, in some embodiments of the present application,

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 carried by the PDCCH scrambled by the SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate SPS activation or deactivation.

Referring to fig. 12, an embodiment of the present application provides a terminal device, including:

a receiving module 1201, configured to receive configuration information of SPS information sent by an access network device, where the SPS information is used to schedule target data carried on a PDSCH, and the target data is control information or service data of an 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;

it should be noted that, the processing module 1202 does not execute the operation, and may or may not exist.

Optionally, in some embodiments of the present application, 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 downlink control information DCI carried by a physical downlink control channel PDCCH scrambled by a single-cell multicast control channel SC-MCCH scheduling identifier;

a processing module 1202 configured to determine a status of SPS activation or deactivation according to the SPS activation or deactivation information.

It should be noted that the above method embodiments of the present application may be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory. It is noted that while for simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present application is not limited by the order of acts, as some steps may, in accordance with the present application, occur in other orders and concurrently. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

Claims

1. A method for scheduling multicast data, comprising:

the access network equipment sends configuration information of semi-persistent scheduling (SPS) information to the terminal equipment, wherein the SPS information is used for scheduling target data loaded on a Physical Downlink Shared Channel (PDSCH), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

the access network equipment sends the target data to the terminal equipment according to the configuration information;

the target data is control information of SC-PTM service, the configuration information comprises at least one item of first SPS period information, repetition times, a scheduling identifier and a narrow band indication, the first SPS period information is at least one item of modification period of the control information, repetition period of the control information, multiple of the modification period of the control information or multiple of the repetition period of the control information, the repetition times are the repeated sending times of the control information, the scheduling identifier is used for scrambling a Physical Downlink Control Channel (PDCCH) carrying the SPS information, and the narrow band indication is used for indicating a narrow band applicable to the SPS information;

or, the target data is service data of an SC-PTM service, the configuration information includes at least one of second SPS period information, a correspondence, a repetition number, a scheduling identifier, and a narrowband indication, the SPS period information is a period for repeatedly transmitting the service data, the correspondence is used to indicate the SC-PTM service to which the SPS information is applicable, the repetition number is the repetition number of the service data, the scheduling identifier is used to scramble a PDCCH carrying the SPS information, and the narrowband indication is used to indicate a narrowband to which the SPS information is applicable.

2. The method for scheduling multicast data according to claim 1, wherein before the access network device sends the configuration information of the SPS information to the terminal device, the method further comprises:

the access network equipment configures SPS information through a system information block SIB, wherein the SIB comprises configuration information of single-cell multicast control channel SC-MCCH control information, and the configuration information of the SC-MCCH control information is used for scheduling control information of SC-PTM service carried on SC-MCCH.

3. The method for scheduling multicast data according to claim 1, wherein before the access network device sends the configuration information of the SPS information to the terminal device, the method further comprises:

the access network equipment configures SPS information through SC-MCCH control information or SIB, wherein the SIB comprises scheduling information of service data of SC-PTM service, the SC-MCCH control information comprises scheduling information of the service data of the SC-PTM service, and the scheduling information of the service data of the SC-PTM service is used for scheduling the service data of the SC-PTM service loaded on a single-cell multicast service channel SC-MTCH.

4. The method of claim 1, wherein the configuration information further comprises SPS activation or deactivation information, and wherein the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

5. The method of scheduling multicast data according to claim 1, wherein the method further comprises:

the access network equipment sends SPS activation or deactivation information to the terminal equipment, wherein the SPS activation or deactivation information is contained in Downlink Control Information (DCI) carried by a PDCCH (physical downlink control channel) scrambled by an SC-MCCH (single carrier control channel) scheduling identifier, and the SPS activation or deactivation information is used for indicating the activation or deactivation of the SPS information.

6. The method according to any of claims 1 to 5, wherein the control information is carried on SC-MCCH and the traffic data is carried on SC-MTCH.

7. A method for scheduling multicast data, comprising:

the method comprises the steps that terminal equipment receives configuration information of semi-persistent scheduling (SPS) information sent by access network equipment, wherein the SPS information is used for scheduling target data borne on a Physical Downlink Shared Channel (PDSCH), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

the terminal equipment receives the target data sent by the access network equipment according to the configuration information;

8. The method of claim 7, wherein the configuration information further comprises SPS activation or deactivation information, and wherein the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

9. The method of scheduling multicast data according to claim 7, wherein the method further comprises:

the terminal equipment receives SPS activation or deactivation information sent by the access network equipment, wherein the SPS activation or deactivation information is contained in downlink control information DCI (downlink control information) carried by PDCCH (physical downlink control channel) scrambled by a single-cell multicast control channel SC-MCCH (single-cell multicast control channel) scheduling identifier;

10. The method according to any of claims 7 to 9, wherein the control information is carried on a single cell multicast control channel, SC-MCCH, and the traffic data is carried on a single cell multicast traffic channel, SC-MTCH.

11. An access network device, comprising: the system comprises a processor, a transceiver and a memory, wherein the memory can be used for storing codes executed by the processor;

the transceiver is further configured to send the target data to the terminal device according to the configuration information;

12. The access network device of claim 11,

13. The access network device of claim 11,

14. The access network device of claim 11, wherein the configuration information further comprises SPS activation or deactivation information indicating activation or deactivation of the SPS information.

15. The access network device of claim 11,

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 downlink control information DCI carried by a PDCCH scrambled by a single-cell multicast control channel SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

16. The access network equipment according to any of claims 11 to 15, wherein the control information is carried on SC-MCCH and the traffic data is carried on SC-MTCH.

17. A terminal device, comprising: a processor, a receiver, a transmitter, an antenna, and a memory, wherein the memory may be used to store code executed by the processor;

the receiver is used for receiving configuration information of semi-persistent scheduling (SPS) information sent by access network equipment, wherein the SPS information is used for scheduling target data loaded on a Physical Downlink Shared Channel (PDSCH), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

the receiver is further configured to receive the target data sent by the access network device according to the configuration information;

18. The terminal device of claim 17, wherein the configuration information further comprises SPS activation or deactivation information indicating activation or deactivation of the SPS information.

19. The terminal device of claim 17,

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 downlink control information DCI carried by a PDCCH scrambled by a single-cell multicast control channel SC-MCCH scheduling identifier;

the processor is used for determining the SPS activation or deactivation state according to the SPS activation or deactivation information.

20. The terminal device according to any of claims 17-19, wherein the control information is carried on SC-MCCH and the traffic data is carried on single cell multicast traffic channel SC-MTCH.

21. An access network device, comprising:

a sending module, configured to send configuration information of semi-persistent scheduling SPS information to a terminal device, where the SPS information is used to schedule target data carried on a PDSCH (physical downlink shared channel), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

the sending module is further configured to send the target data to the terminal device according to the configuration information;

the access network device further includes: a processing module;

the processing module is used for configuring SPS information through a system information block SIB, wherein the SIB comprises configuration information of single-cell multicast control channel SC-MCCH control information, and the configuration information of the SC-MCCH control information is used for scheduling control information of SC-PTM service carried on SC-MCCH;

or the like, or, alternatively,

22. The access network apparatus of claim 21,

the sending module is further configured to send SPS activation or deactivation information to the terminal device, where the SPS activation or deactivation information is included in downlink control information DCI carried by a physical downlink control channel PDCCH scrambled by an SC-MCCH scheduling identifier, and the SPS activation or deactivation information is used to indicate activation or deactivation of the SPS information.

23. A terminal device, comprising:

a receiving module, 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 carried on a PDSCH (physical downlink shared channel), and the target data is control information or service data of a single-cell point-to-multipoint transmission SC-PTM service;

24. The terminal device of claim 23, wherein the terminal device further comprises: 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 downlink control information DCI carried by a physical downlink control channel PDCCH scrambled by a single-cell multicast control channel SC-MCCH scheduling identifier;

25. A computer-readable storage medium having stored therein instructions which, when run on a device, cause the device to perform the method of one of claims 1-6.

26. A computer-readable storage medium having stored therein instructions which, when run on a device, cause the device to perform the method of one of claims 7-10.

27. A communication system, comprising:

an access network device for performing the method of any one of claims 1-6;

terminal device for performing the method of any of claims 7-10.