METHOD AND APPARATUS FOR REPORTING AND RECEIVING CHANNEL STATE INFORMATION

1 . An apparatus for reporting channel state information (CSI), comprising:

a first receiver configured to receive one or more reference signals to obtain measurement information;

first processor circuitry configured to obtain CSI according to the measurement information; and

a first transmitter configured to transmit the CSI at a first time according to CSI report configuration, wherein the CSI at least indicates a channel state of a second time which is later than the first time.

2 . The apparatus according to claim 1 , wherein the first receiver is configured to receive at least one of first prediction indication, first prediction accuracy information or first prediction step information;

wherein the first prediction indication is used to indicate a terminal equipment to predict CSI of the second time; the first prediction accuracy information is used for indicating one or more prediction accuracy requirement; the first prediction step information is used to denote a time interval between the first time and the second time.

3 . The apparatus according to claim 2 , wherein the first prediction indication, the first prediction step information or the first prediction accuracy information is transmitted via at least one of radio resource control (RRC), media access control (MAC) control element (CE), or downlink control information (DCI).

4 . The apparatus according to claim 2 , wherein the first prediction step information is scaled based on subcarrier spacing (SCS).

5 . The apparatus according to claim 1 , wherein the first transmitter is configured to transmit a request for indicating at least one of reference signal periodicity, reference signal interval, reference signal number, or mobility indication;

wherein the reference signal periodicity and/or mobility indication is used by a network device to determine periodic configuration or semi-persistent configuration of the one or more reference signals; the reference signal interval and/or reference signal number and/or mobility indication is used by the network device to determine number and/or positions of aperiodic reference signals.

6 . The apparatus according to claim 1 , wherein the first receiver is configured to receive the CSI report configuration and/or reference signal resource configuration;

wherein at least one of first prediction indication, first prediction accuracy information or first prediction step information are comprised in the CSI report configuration; and the reference signal resource configuration is determined by a network device according to at least one of reference signal periodicity, reference signal interval, reference signal number, or mobility indication.

7 . The apparatus according to claim 1 , wherein the first processor circuitry is configured to determine that CSI prediction is not supported;

the first transmitter is configured to transmit a prediction stop request; and the first receiver is configured to receive a prediction stop response.

8 . The apparatus according to claim 1 , wherein the first receiver is configured to receive a prediction stop indication.

9 . The apparatus according to claim 1 , wherein the first receiver is configured to receive a capability inquiry; and the first transmitter is configured to report a capability response;

wherein the capability inquiry is used for retrieving at least one of CSI prediction capability, AI/ML capability for CSI measurement or CSI prediction, CSI measurement or CSI prediction for a certain QoS or a reliability level, CSI measurement or CSI prediction for a certain QoS or a reliability level via AI/ML, CSI measurement or CSI prediction for a certain CSI delay.

10 . The apparatus according to claim 1 , wherein the first transmitter is configured to transmit second prediction indication; wherein the second prediction indication is used to indicate that the terminal equipment is to predict CSI of the second time.

11 . The apparatus according to claim 1 , wherein the first transmitter is configured to transmit at least one of second prediction accuracy information, second prediction step information, reference signal configuration ID, reference signal interval, reference signal number, or mobility indication;

wherein reference signal resource configuration is determined by a network device according to at least one of the second prediction accuracy information, the second prediction step information, reference signal configuration ID, reference signal interval, reference signal number, or mobility indication.

12 . The apparatus according to claim 1 , wherein the first receiver is configured to receive reliability level indication; wherein the reliability level indication is used to indicate the terminal equipment to obtain CSI for data transmission at the second time being able to match a request of the reliability level.

13 . The apparatus according to claim 12 , wherein the first receiver is configured to receive a request for retrieving CSI report capability with a reliability level indicator; and the first transmitter is configured to report capability information on the CSI report capability with a reliability level indicator.

14 . The apparatus according to claim 13 , wherein the first receiver is configured to receive the CSI report configuration and/or reference signal resource configuration, wherein CSI delay information is comprised in the CSI report configuration.

15 . The apparatus according to claim 1 , wherein the first receiver is configured to receive CSI delay information; wherein the CSI delay information is used to indicate the terminal equipment to obtain CSI of the second time.

16 . The apparatus according to claim 1 , wherein differential CSI is used to indicates the channel state of the second time.

17 . An apparatus for receiving channel state information (CSI), comprising:

a second transmitter configured to transmit one or more reference signals according to reference signal resource configuration; and

a second receiver configured to receive CSI at a first time, wherein the CSI at least indicates a channel state of a second time which is later than the first time.

18 . The apparatus according to claim 17 , wherein the second transmitter is configured to transmit at least one of first prediction indication, first prediction accuracy information or first prediction step information;

wherein the first prediction indication is used to indicate the terminal equipment to predict CSI of the second time; the first prediction accuracy information is used for indicating one or more prediction accuracy requirement; the first prediction step information is used to denote a time interval between the first time and the second time.

19 . The apparatus according to claim 17 , wherein the second receiver is configured to receive a request for indicating at least one of reference signal periodicity, reference signal interval, reference signal number, or mobility indication;

wherein the reference signal periodicity or mobility indication is used by a network device to determine periodic configuration or semi-persistent configuration of the one or more reference signals;

the reference signal interval or reference signal number or mobility indication is used by the network device to determine semi-persistent configuration or aperiodic configuration of the one or more reference signals.

20 . A network system, comprising:

a terminal equipment configured to receive one or more reference signals to obtain measurement information; obtain CSI according to the measurement information; and transmit the CSI at a first time according to CSI report configuration;

a network device configured to transmit one or more reference signals according to reference signal resource configuration; and receive the CSI at the first time; wherein the CSI at least indicates a channel state of a second time which is later than the first time.