Information Transmission Method and Device, Storage Medium and Electronic Device

Patent metadata

Field	Value
Publication number	US-2021105748-A1
Application number	US-201816960105-A
Country	US
Kind code	A1
Filing date	Aug 20, 2018
Priority date	Jan 30, 2018
Publication date	Apr 8, 2021
Grant date	—

Abstract

The embodiments of the present disclosure provide an information transmission method and device, a storage medium and an electronic device. The method includes that: a Physical Downlink Control Channel (PDCCH) transmitted by a base station is received; and Channel State Information (CSI) is transmitted to the base station according to the PDCCH.

First claim

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.

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 , after receiving the PDCCH transmitted by the base station, further comprising: transmitting a Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback to the base station according to the PDCCH.

4 . 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.

5 . The method as claimed in claim 4 , 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.

6 . The method as claimed in claim 5 , 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.

7 . The method as claimed in claim 4 , wherein
the PDSCH transmission related field is a new data indicator field.

8 . The method as claimed in claim 3 , 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.

9 . The method as claimed in claim 3 , 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.

10 . 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.

11 . The method as claimed in claim 10 , wherein the measurement carrier set is a set formed by all carriers allowed for PDSCH transmission.

12 . 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.

13 . 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.

14 . The method as claimed in claim 13 , 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.

15 . 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.

16 . The method as claimed in claim 15 , wherein
the PDCCH is an uplink grant PDCCH or a downlink allocation PDCCH.

17 . The method as claimed in claim 15 , after transmitting the PDCCH to the UE, further comprising: receiving a Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback according to the PDCCH.

18 . The method as claimed in claim 15 , 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.

19 . (canceled)

20 . (canceled)

21 . (canceled)

22 . (canceled)

23 . (canceled)

24 . (canceled)

25 . (canceled)

26 . (canceled)

27 . (canceled)

28 . (canceled)

29 . 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 .

30 . 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 15 .

Assignees

• Zte Corp

Inventors

• Chen Xianming
• Dai Bo
• Fang Huiying
• Liu Kun
• Yang Weiwei

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04L5/0057 Primary

  Physical resource allocation for CQI · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title