METHOD AND APPARATUS FOR REPORTING CHANNEL STATE INFORMATION

1 . An apparatus for reporting channel state information, the apparatus comprising:

a first receiver, configured to receive a channel state information (CSI) report configuration, the CSI report configuration being related to L CSI sub-reports, the CSI report configuration comprising a first sub-configuration list, the first sub-configuration list comprising L sub-configurations, one of the L sub-configurations corresponds to one of the L CSI sub-reports;

a second receiver, configured to receive indication information, the indication information being used to trigger/indicate/activate M sub-configurations of the L sub-configurations, M equals to or more than 1 and less than or equal to L;

wherein the CSI report configuration is for semi-persistent reporting on PUSCH; and a first trigger state list is configured via a higher layer signaling, the first trigger state list comprising a set of trigger states;

or, the CSI report configuration is for aperiodic reporting on PUSCH; and a second trigger state list is configured via a higher layer signaling, the second trigger state list comprising a set of trigger states.

2 . The apparatus according to claim 1 , wherein,

the higher signaling to configure the first trigger state list is radio resource control signaling, the first trigger state list comprising X1 trigger states, and/or, the higher layer signaling to configure the second trigger state list is radio resource control signaling, the second trigger state list comprising X2 trigger states;

wherein a trigger state of the first trigger state list or the second trigger state list is associated with at least one sub-configuration out of the first sub-configuration list of the L sub-configurations.

3 . The apparatus according to claim 1 , wherein the first trigger state list is CSI-SemiPersistentOnPUSCH-TriggerStateList, and/or, the second trigger state list is CSI-AperiodicTriggerStateList.

4 . The apparatus according to claim 1 , wherein a trigger state in the first trigger state list at least comprises the CSI report configuration being associated with the trigger state.

5 . The apparatus according to claim 4 , wherein the trigger state in the first trigger state list further comprises a second sub-configurations list;

wherein the second sub-configuration list comprises M2 sub-configuration IDs out of the first sub-configuration list of the L sub-configurations, M2 being equal to or more than 1.

6 . The apparatus according to claim 1 , wherein a trigger state in the second trigger state list at least comprises the CSI report configuration being associated with the trigger state.

7 . The apparatus according to claim 6 , wherein the trigger state in the second trigger state list further comprises a third sub-configuration list;

wherein the third sub-configuration list comprises M3 sub-configuration IDs out of the first sub-configuration list of the L sub-configurations, M3 being equal to or more than 1.

8 . The apparatus according to claim 1 , wherein the apparatus further comprises:

a processor, configured to perform channel measurement according to the M sub-configurations triggered/indicated/activated by the indication information; and

a transmitter, configured to transmit a CSI report, the CSI report at least comprising M CSI sub-reports; wherein one of the M CSI sub-reports corresponds to one of the M sub-configurations.

9 . The apparatus according to claim 1 , wherein one of the L sub-configurations comprises at least one of the following information: information being related to parameter N1; information being related to parameter N2; information being related to parameter Ng; information being related to a codebook subset restriction; or port information, the port information being used to indicate a port subset of at least one CSI-RS resource associated with the CSI report configuration; and

the sub-configuration is included in the first sub-configuration list of the CSI report configuration.

10 . The apparatus according to claim 1 , wherein the indication information is downlink control information (DCI); and

the DCI is scrambled by SP-CSI-RNTI or C-RNTI;

wherein the DCI is of DCI format 0_1 or DCI format 0_2; a CSI request field in the DCI is at least used to trigger/indicate/activate M sub-configurations of the L sub-configurations.

11 . An apparatus for configuring channel state information reporting, the apparatus comprising:

a first transmitter, configured to transmit a channel state information (CSI) report configuration, the CSI report configuration being related to L CSI sub-reports, the CSI report configuration comprising a first sub-configuration list, the first sub-configuration list comprising L sub-configurations, one of the L sub-configurations corresponds to one of the L CSI sub-reports;

a second transmitter, configured to transmit indication information, the indication information being used to trigger/indicate/activate M sub-configurations of the L sub-configurations, M equals to or more than 1 and less than or equal to L;

wherein the CSI report configuration is for semi-persistent reporting on PUSCH; and a first trigger state list is configured via a higher layer signaling, the first trigger state list comprising a set of trigger states;

or, the CSI report configuration is for aperiodic reporting on PUSCH; and a second trigger state list is configured via a higher layer signaling, the second trigger state list comprising a set of trigger states.

12 . The apparatus according to claim 11 , wherein,

the higher signaling to configure the first trigger state list is radio resource control signaling, the first trigger state list comprising X1 trigger states, and/or, the higher layer signaling to configure the second trigger state list is radio resource control signaling, the second trigger state list comprising X2 trigger states;

wherein a trigger state of the first trigger state list or the second trigger state list is associated with at least one sub-configuration out of the first sub-configuration list of the L sub-configurations.

13 . The apparatus according to claim 11 , wherein the first trigger state list is CSI-SemiPersistentOnPUSCH-TriggerStateList, and/or, the second trigger state list is CSI-AperiodicTriggerStateList.

14 . The apparatus according to claim 11 , wherein a trigger state in the first trigger state list at least comprises the CSI report configuration being associated with the trigger state.

15 . The apparatus according to claim 14 , wherein the trigger state in the first trigger state list further comprises a second sub-configurations list;

wherein the second sub-configuration list comprises M2 sub-configuration IDs out of the first sub-configuration list of the L sub-configurations, M2 being equal to or more than 1.

16 . The apparatus according to claim 11 , wherein a trigger state in the second trigger state list at least comprises the CSI report configuration being associated with the trigger state.

17 . The apparatus according to claim 16 , wherein the trigger state further comprises a third sub-configuration list;

wherein the third sub-configuration list comprises M3 sub-configuration IDs out of the first sub-configuration list of the L sub-configurations, M3 being equal to or more than 1.

18 . The apparatus according to claim 11 , wherein the apparatus further comprises:

a receiver, configured to receive a CSI report, the CSI report at least comprising M sub-reports; wherein one of the M CSI sub-reports corresponds to one of M sub-configurations triggered/indicated/activated by the indication information.

19 . The apparatus according to claim 11 , wherein one of the L sub-configurations comprises at least one of the following information: information being related to parameter N1; information being related to parameter N2; information being related to parameter Ng; information being related to a codebook subset restriction; or port information, the port information being used to indicate a port subset of at least one CSI-RS resource associated with the CSI report configuration; and

the sub-configuration is included in the first sub-configuration list of the CSI report configuration.

20 . A communication system, comprising:

a network device, configured to transmit a channel state information (CSI) report configuration and indication information; and

a terminal equipment, configured to receive the CSI report configuration and the indication information;

wherein the CSI report configuration is related to L CSI sub-reports, the CSI report configuration comprising a first sub-configuration list, the first sub-configuration list comprising L sub-configurations, one of the L sub-configurations corresponds to one of the L CSI sub-reports; the indication information is used to trigger/indicate/activate M sub-configurations of the L sub-configurations, M equals to or more than 1 and less than or equal to L;

wherein the CSI report configuration is for semi-persistent reporting on PUSCH; and a first trigger state list is configured via a higher layer signaling, the first trigger state list comprising a set of trigger states;

or, the CSI report configuration is for aperiodic reporting on PUSCH; and a second trigger state list is configured via a higher layer signaling, the second trigger state list comprising a set of trigger states.