Information transmission method and device, storage medium and electronic device

1. An information transmission method, comprising:

receiving a Physical Downlink Control Channel (PDCCH) transmitted by a base station; and

transmitting Channel State Information (CSI) to the base station according to the PDCCH;

wherein after receiving the PDCCH transmitted by the base station, the method further comprises: transmitting a Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback to the base station according to the PDCCH, wherein a frequency-domain size of a resource unit corresponding to CSI transmission is the same as a frequency-domain size of a resource unit corresponding to HARQ-ACK feedback transmission, and a time-domain size of the resource unit corresponding to the CSI transmission is N times a time-domain size of the resource unit corresponding to the HARQ-ACK feedback transmission, N being greater than 1 and a value of N being a preset value or configured for a UE by the base station.

2. The method as claimed in claim 1 , wherein the PDCCH is an uplink grant PDCCH or a downlink allocation PDCCH.

3. The method as claimed in claim 1 , further comprising: acquiring indication information configured to trigger User Equipment (UE) to perform CSI reporting, the indication information being contained in at least one of:

a subcarrier indication field contained in the PDCCH;

a modulation and coding scheme field contained in the PDCCH;

a field contained in a UE-specific Radio Resource Control (RRC) message;

a Physical Downlink Shared Channel (PDSCH) transmission related field contained in the PDCCH; and

K continuous bits contained in the PDCCH, a value of K being a preset value or determined according to a subcarrier spacing adopted in uplink data transmission and K being a positive integer.

4. The method as claimed in claim 3 , wherein

the subcarrier indication field comprises Q bits, wherein first P bits in the Q bits taking a preset value indicates that the CSI reporting is triggered, and when the CSI reporting is triggered, last Q-P bits in the Q bits are configured to indicate a subcarrier allocated for CSI transmission,

both Q and P being integers greater than 0, Q being greater than P and a value of P being a preset value or determined according to the subcarrier spacing adopted in uplink data transmission.

5. The method as claimed in claim 4 , wherein the subcarrier allocated for the CSI transmission is one of X subcarriers, wherein the X subcarriers comprise Y continuous subcarriers close to an upper sideband and X-Y continuous subcarriers close to a lower sideband, both X and Y being integers greater than 1 and X being greater than Y.

6. The method as claimed in claim 3 , wherein

the PDSCH transmission related field is a new data indicator field.

7. The method as claimed in claim 1 wherein the HARQ-ACK feedback is transmitted to the base station at first, and the CSI is transmitted to the base station after the transmission of the HARQ-ACK feedback is completed.

8. The method as claimed in claim 1 , wherein the CSI comprises at least one of: CSI of a carrier for receiving a PDSCH, CSI of a carrier for receiving the PDCCH, CSI of a carrier with best channel quality in a measurement carrier set, CSI of a specified carrier in the measurement carrier set and CSI of all carriers in the measurement carrier set.

9. The method as claimed in claim 8 , wherein the measurement carrier set is a set formed by all carriers allowed for PDSCH transmission.

10. The method as claimed in claim 1 , before transmitting the CSI to the base station according to the PDCCH, further comprising: performing CSI measurement, a subframe for CSI measurement being at least one of:

all or part of subframes in a downlink subframe set for receiving PDSCH; all or part of subframes in a downlink subframe set for receiving the PDCCH; all or part of subframes in a downlink subframe set positioned between the end of PDSCH reception and the start of CSI transmission; all or part of subframes in a downlink subframe set positioned between the end of PDCCH reception and the start of PDSCH reception; and all or part of subframes in a downlink subframe set positioned between the end of PDCCH reception and the start of CSI transmission.

11. The method as claimed in claim 1 , wherein a CSI reporting mode corresponding to the CSI is determined according to one of a modulation and coding scheme field contained in the PDCCH and a Physical Random Access Channel (PRACH) coverage level, and the CSI reporting mode corresponds to at least one of the following information:

a carrier corresponding to the CSI and a content of the CSI.

12. The method as claimed in claim 11 , wherein determining the CSI reporting mode according to the PRACH coverage level comprises that: when the PRACH coverage level is less than or equal to a preset threshold value, the CSI reporting mode is a first mode; and when the PRACH coverage level is greater than the preset threshold value, the CSI reporting mode is a second mode.

13. An electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory; and the processor is configured to run the computer program to execute the method as claimed in claim 1 .

14. An information transmission method, comprising:

transmitting a Physical Downlink Control Channel (PDCCH) to User Equipment (UE); and

receiving, according to the PDCCH, Channel State Information (CSI) transmitted by the UE;

wherein after transmitting the PDCCH to the UE, the method further comprises: receiving a Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback according to the PDCCH, wherein a frequency-domain size of a resource unit corresponding to CSI transmission is the same as a frequency-domain size of a resource unit corresponding to HARQ-ACK feedback transmission, and a time-domain size of the resource unit corresponding to the CSI transmission is N times a time-domain size of the resource unit corresponding to the HARQ-ACK feedback transmission, N being greater than 1 and a value of N being a preset value or configured for a UE by the base station.

15. The method as claimed in claim 14 , wherein

the PDCCH is an uplink grant PDCCH or a downlink allocation PDCCH.

16. The method as claimed in claim 14 , further comprising: transmitting indication information configured to trigger the UE to perform CSI reporting, the indication information being contained in at least one of:

a subcarrier indication field contained in the PDCCH;

a modulation and coding scheme field contained in the PDCCH;

a field contained in a UE-specific Radio Resource Control (RRC) message;

a Physical Downlink Shared Channel (PDSCH) transmission related field contained in the PDCCH; and

K continuous bits contained in the PDCCH, a value of K being a preset value or determined according to a subcarrier spacing adopted in uplink data transmission and K being a positive integer.

17. An electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory; and the processor is configured to run the computer program to execute the method as claimed in claim 14 .