SC-MCCH sending method and apparatus, and SC-PTM receiving method and apparatus

1. A Single Cell Multicast Control Channel (SC-MCCH) sending method, comprising:

generating, by a base station, SC-MCCH information for indicating configuration information of a Single Cell Point-to-Multipoint (SC-PTM) service;

sending, by the base station, frequency domain scheduling information of the SC-MCCH information on a Physical Downlink Control Channel (PDCCH); and

sending, by the base station, the SC-MCCH information on a Physical Downlink Shared Channel (PDSCH);

wherein the SC-MCCH information comprises: a mapping relationship between a Temporary Mobile Group Identifier (TMGI) of the SC-PTM service and a Group Radio Network Temporary Identifier (G-RNTI) of the SC-PTM service on the PDCCH, and information of a time domain location where the SC-PTM service is;

wherein the receiving, by the UE, the SC-PTM service according to a content of the SC-MCCH information, comprises:

receiving, by the UE, a unicast subframe as indicated by the information of the time domain location in the SC-MCCH information;

performing, by the UE, a mask operation on the unicast subframe by using a G-RNTI of interest and verifying a Cyclic Redundancy Check (CRC) value; and

in response to the verification being successful, reading, by the UE, the SC-PTM service corresponding to the G-RNTI of interest according to frequency domain scheduling information as indicated in the PDCCH of the unicast subframe.

2. The method according to claim 1 , wherein the frequency domain scheduling information comprises frequency domain location information of the SC-MCCH information and a Modulation and Coding Scheme (MCS) of the SC-MCCH information.

3. The method according to claim 1 , wherein the SC-MCCH further comprises at least one of:

a mapping relationship between the TMGI and a Logical Channel Identifier (LCID) of a Single Cell Multicast Traffic Channel (SC-MTCH), a counting request, a channel quality feedback request, and SC-MCCH indication information of a neighboring cell.

4. The method according to claim 1 , wherein the information of the time domain location where the SC-PTM service is comprises:

configuration information of a wireless frame and a wireless subframe where the SC-PTM service is.

5. The method according to claim 3 , wherein the channel quality feedback request is used for requesting a User Equipment (UE) to report a channel quality of a downlink;

wherein the channel quality feedback request comprises at least one of:

a Channel Quality Indicator (CQI) threshold by which a CQI is to be fed back, an identifier of a User Equipment (UE) which needs to feed back the CQI, and indication information which indicates whether a UE in an idle state feeds back the CQI; and

wherein the channel quality feedback request comprises at least one of:

indication information which indicates whether to feed back at least one of an acknowledge response (ACK) and a negative acknowledge response (NACK) of a Hybrid Automatic Repeat request (HARQ), and indication information which indicates whether a UE in an idle state feeds back at least one of the ACK and the NACK of the HARQ.

6. The method according to claim 3 , wherein the SC-MCCH indication information of the neighboring cell comprises:

a frequency of the SC-PTM service of the neighboring cell, and an identifier of the SC-PTM service of the neighboring cell.

7. The method according to claim 1 , wherein after the base station sends the SC-MCCH, the method further comprises:

listening or receiving, by a User Equipment (UE), the SC-MCCH information at a location which is indicated in SC-MCCH configuration information of a system broadcast message.

8. The method according to claim 7 , wherein the listening or receiving, by the User Equipment (UE), the SC-MCCH information at the location which is indicated in the SC-MCCH configuration information of the system broadcast message, comprises:

after the UE is powered on, or after reselecting a cell, or after switching to a new cell, reading, by the UE, the SC-MCCH information; or

after a SC-MCCH update notification is monitored, reading, by the UE, updated SC-MCCH information;

wherein after the UE receives the SC-MCCH information at the location which is indicated in the SC-MCCH configuration information of the system broadcast message, the method comprises:

receiving, by the UE, a required SC-PTM service according to a content of the SC-MCCH information.

9. A Single Cell Point-to-Multipoint (SC-PTM) service receiving method, comprising:

receiving, by a User Equipment (UE), frequency domain scheduling information of a Single Cell Multicast Control Channel (SC-MCCH) information on a Physical Downlink Control Channel (PDCCH), wherein the SC-MCCH information is used for indicating configuration information of the SC-PTM service;

receiving, by the UE, the SC-MCCH information on a Physical Downlink Shared Channel (PDSCH); and

receiving, by the UE, the SC-PTM service according to the SC-MCCH information;

wherein the SC-MCCH information comprises: a mapping relationship between a Temporary Mobile Group Identifier (TMGI) of the SC-PTM service and a Group Radio Network Temporary Identifier (G-RNTI) of the SC-PTM service on the PDCCH, and information of a time domain location where the SC-PTM service is;

wherein the receiving, by the UE, the SC-PTM service according to the SC-MCCH information comprises:

receiving, by the UE, a unicast subframe as indicated by the information of the time domain location in the SC-MCCH;

performing, by the UE, a mask operation on the unicast subframe by using a G-RNTI of interest and verifying a Cyclic Redundancy Check (CRC) value; and

in response to the verification being successful, reading, by the UE, SC-PTM service data corresponding to the G-RNTI of interest according to frequency domain scheduling information of the SC-PTM service as indicated in the PDCCH of the unicast subframe.

10. The method according to claim 9 , wherein the frequency domain scheduling information comprises frequency domain location information of the SC-MCCH information and a Modulation and Coding Scheme (MCS) of the SC-MCCH information.

11. The method according to claim 9 , wherein the SC-MCCH further comprises at least one of:

a mapping relationship between the TMGI and a Logical Channel Identifier (LCID) of a Single Cell Multicast Traffic Channel (SC-MTCH), a counting request, a channel quality feedback request, and SC-MCCH indication information of a neighboring cell.

12. The method according to claim 9 , wherein the information of the time domain location where the SC-PTM service is comprises:

configuration information of a wireless frame and a wireless subframe where the SC-PTM service is.

13. The method according to claim 11 , wherein the channel quality feedback request is used for requesting the UE to report a channel quality of a downlink;

wherein a channel quality feedback request comprises at least one of:

a Channel Quality Indication (CQI) threshold by which a CQI is to be fed back, an identifier of a User Equipment (UE) which needs to feed back the CQI, and indication information which indicates whether a UE in an idle state feeds back the CQI; and

wherein the channel quality feedback request comprises at least one of:

indication information which indicates whether to feed back at least one of an acknowledge response (ACK) and a negative acknowledge response (NACK) of a Hybrid Automatic Repeat request (HARQ), and indication information which indicates whether a UE in an idle state feeds back at least one of the ACK and the NACK of the HARQ.

14. The method according to claim 11 , wherein the SC-MCCH indication information of a neighboring cell comprises:

a frequency of the SC-PTM service of the neighboring cell, and an identifier of the SC-PTM service of the neighboring cell.

15. The method according to claim 9 , wherein the receiving, by the UE, the SC-MCCH information on the PDSCH of a unicast subframe as indicated by the frequency domain scheduling information comprises:

after the UE is powered on, or after reselecting a cell, or after switching to a new cell, reading, by the UE, the SC-MCCH information; or

after a SC-MCCH update notification is monitored, reading, by the UE, updated SC-MCCH information.

16. A Single Cell Point-to-Multipoint (SC-PTM) service receiving device, applied in a User Equipment (UE), wherein the device comprises:

a processor; and

a memory for storing instructions executable by the processor;

wherein the processor is configured to:

receive frequency domain scheduling information of a Single Cell Multicast Control Channel (SC-MCCH) information on a Physical Downlink Control Channel (PDCCH), wherein the SC-MCCH information is used for indicating configuration information of the SC-PTM service;

receive the SC-MCCH information on a Physical Downlink Shared Channel (PDSCH); and

receive the SC-PTM service according to the SC-MCCH information;

wherein the SC-MCCH information comprises: a mapping relationship between a Temporary Mobile Group Identifier (TMGI) of the SC-PTM service and a Group Radio Network Temporary Identifier (G-RNTI) of the SC-PTM service on the PDCCH, and information of a time domain location where the SC-PTM service is;

wherein the processor is configured to receive the SC-PTM service according to the SC-MCCH information by the following way:

receiving a unicast subframe as indicated by the information of the time domain location in the SC-MCCH;

performing a mask operation on the unicast subframe by using G-RNTI of interest and verifying a Cyclic Redundancy Check (CRC) value; and

in response to the verification being successful, reading SC-PTM service data corresponding to the G-RNTI of interest according to frequency domain scheduling information of the SC-PTM service as indicated in the PDCCH of the unicast subframe.

17. The device according to claim 16 , wherein the frequency domain scheduling information comprises frequency domain location information of the SC-MCCH information and a Modulation and Coding Scheme (MCS) of the SC-MCCH information.

18. The device according to claim 16 , wherein the SC-MCCH information further comprises at least one of:

a mapping relationship between the TMGI and a Logical Channel Identifier (LCID) of a Single Cell Multicast Traffic Channel (SC-MTCH), a counting request, a channel quality feedback request, and SC-MCCH indication information of a neighboring cell.