Method of transmitting uplink control information by user equipment in wireless communication system and device for supporting same

• US 10,530,528 B2
• Filed: 02/05/2018
• Issued: 01/07/2020
• Est. Priority Date: 02/05/2017
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Hanjun, Yang, Suckchel, Ahn, Joonkui, Kim, Seonwook, Park, Changhwan
• Primary Examiner(s): Atkins, George C
• Application Number:
  US16/065,073
• Publication Number:
  US 20190199477A1
• Time in Patent Office: 701 Days
• Field of Search: None
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/0693 Partial feedback, e.g. partial channel state information [CSI]
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/26025 Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking allocating sub-channels of the transmission path H04L5/003
• CPC Class Codes: H04L 27/26035 Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences using different training sequence per antenna H04B7/0684; code allocation H04J13/16
• CPC Class Codes: H04L 5/00 Arrangements affording multiple use of the transmission path
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention discloses a method of transmitting uplink control information by a user equipment in a wireless communication system and device for supporting the same. Specifically, the present invention discloses a method by which a user equipment maps uplink control information to a physical uplink shared channel when the user equipment intends to transmit the uplink control information on the physical uplink shared channel and transmission operation for the uplink control information based on the same.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

multiplexing data and uplink control information (UCI) to obtain multiplexed information to be transmitted on a physical uplink shared channel (PUSCH),

wherein the multiplexed information is obtained by rate-matching when a size of acknowledgement information included in the UCI is more than a predetermined value, and

wherein the multiplexed information is obtained by puncturing when the size of the acknowledgement information included in the UCI is less than or equal to the predetermined value; and

transmitting the multiplexed information on the PUSCH.

2. The method of claim 1, wherein the predetermined value is 2 bits.

3. The method of claim 1, wherein the acknowledgement information is not mapped to any symbol before a symbol where a first demodulation reference signal (DM-RS) is transmitted on the PUSCH.

4. The method of claim 1, wherein when channel state information (CSI) is included in the UCI, the CSI is mapped to the PUSCH by applying the rate-matching to resources for transmitting the CSI on the PUSCH.

5. The method of claim 4, wherein the CSI is mapped to resources except a predetermined amount of resources which are reserved for the acknowledgement information on the PUSCH.

6. The method of claim 1, wherein the size of the acknowledgement information is determined based on an uplink downlink assignment index (DAI) value in uplink grant received from the BS.

7. The method of claim 1, wherein the amount of the resources for transmitting the acknowledgement information on the PUSCH is determined based on a first beta parameter, and

wherein when among a plurality of sets configured through higher layer signaling, one set is indicated by uplink grant, the first beta parameter corresponds to a beta parameter that is determined based on the size of the acknowledgement information among a plurality of beta parameters included in the one set indicated by the uplink grant.

8. The method of claim 1, wherein part or all of the UCI is mapped to resources in a symbol where a demodulation reference signal (DM-RS) is transmitted on the PUSCH.

9. The method of claim 1, wherein when the PUSCH is a semi-persistent scheduling (SPS) PUSCH, the rate-matching or puncturing is performed based on maximum UCI payload dedicated to the SPS PUSCH.

10. The method of claim 1, wherein when the PUSCH is a semi-persistent scheduling (SPS) PUSCH, the rate-matching or puncturing is performed based on a beta offset value included in downlink control information that activates the SPS PUSCH.

11. A user equipment (UE) in a wireless communication system, the UE comprising:

a transmitter; and

a processor operably coupled to the transmitter and configured to;

multiplex data and uplink control information (UCI) to obtain multiplexed information to be transmitted on a physical uplink shared channel (PUSCH),

wherein the multiplexed information is obtained by rate-matching when a size of acknowledgement information included in the UCI is more than a predetermined value; and

transmit the multiplexed information on the PUSCH.

12. The UE of claim 11, wherein the predetermined value is 2 bits.

13. The UE of claim 11, wherein the acknowledgement information is not mapped to any symbol before a symbol where a first demodulation reference signal (DM-RS) is transmitted on the PUSCH.

14. The UE of claim 11, wherein when channel state information (CSI) is included in the UCI, the CSI is mapped to the PUSCH by applying the rate-matching to resources for transmitting the CSI on the PUSCH.

15. The UE of claim 14, wherein the CSI is mapped to resources except a predetermined amount of resources which are reserved for the acknowledgement information on the PUSCH.

16. The UE of claim 11, wherein the size of the acknowledgement information is determined based on an uplink downlink assignment index (DAI) value in uplink grant received from the BS.

17. The UE of claim 11, wherein the amount of the resources for transmitting the acknowledgement information on the PUSCH is determined based on a first beta parameter, and

wherein when among a plurality of sets configured through higher layer signaling, one set is indicated by uplink grant, the first beta parameter corresponds to a beta parameter that is determined based on the size of the acknowledgement information among a plurality of beta parameters included in the one set indicated by the uplink grant.

18. The UE of claim 11, wherein part or all of the UCI is mapped to resources in a symbol where a demodulation reference signal (DM-RS) is transmitted on the PUSCH.

19. The UE of claim 11, wherein when the PUSCH is a semi-persistent scheduling (SPS) PUSCH, the rate-matching or puncturing is performed based on maximum UCI payload dedicated to the SPS PUSCH.

20. The UE of claim 11, wherein when the PUSCH is a semi-persistent scheduling (SPS) PUSCH, the rate-matching or puncturing is performed based on a beta offset value included in downlink control information that activates the SPS PUSCH.