UPLINK CONTROL INFORMATION REPORTING

• US 20170347353A1
• Filed: 05/16/2017
• Published: 11/30/2017
• Est. Priority Date: 05/24/2016
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: YERRAMALLI, Srinivas, PATEL, Chirag Sureshbhai, LUO, Tao, GAAL, Peter, MONTOJO, Juan, ZHANG, Xiaoxia
• Granted Patent: US 11,477,766 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/0031 Multiple signaling transmission H04L1/1664, F15 take precedence
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

Certain aspects of the present disclosure relate to methods and apparatus for uplink control information (UCI) reporting. In certain aspects, a method includes receiving an indication of a number of symbols of a subframe available for uplink transmission. In certain aspects, the method further includes rate matching uplink control information (UCI) to the subframe based on the indication.

Claims

1. A method of wireless communication by a user equipment, the method comprising:

receiving an indication of a number of symbols of a subframe available for uplink transmission; and

rate matching uplink control information (UCI) to the subframe based on the indication of the number of symbols.

2. The method of claim 1, further comprising mapping the UCI to the number of symbols of the subframe based on the indication of the number of symbols.

3. The method of claim 1, wherein the number of symbols comprises a number of symbols for physical uplink shared channel transmission.

4. The method of claim 1, wherein the number of symbols comprises a number of symbols for channel quality indication (CQI) transmission.

5. The method of claim 1, further comprising:

mapping the UCI to a first frequency band in a first slot of the subframe; and

mapping the UCI to a second frequency band in a second slot of the subframe.

6. The method of claim 5, wherein the first frequency band and the second frequency band belong to different interlaces.

7. The method of claim 1, further comprising:

mapping the UCI to all resource blocks of a first interlace prior to mapping the UCI to any resource block of a second interlace based on the first interlace comprising a resource block associated with a lower frequency than any of the resource blocks of the second interlace.

8. The method of claim 7, further comprising mapping the UCI to all resource blocks of the first interlace and the second interlace prior to mapping UCI to any resource block of a third interlace based on the first interlace and the second interlace belonging to a first group of interlaces and the third interlace belonging to a second group of interlaces, wherein the first group of interlaces comprises a greater number of interlaces of consecutive allocation in frequency than the second group of interlaces.

9. The method of claim 7, further comprising mapping UCI to a subset of carriers of the resource blocks of the first interlace.

10. The method of claim 1, further comprising:

receiving an indication of which subframes of a plurality of subframes to transmit the UCI; and

mapping the UCI to the subframes of the plurality of subframes.

11. The method of claim 10, wherein the indication of which subframes is received at least one of using radio resource control (RRC) signaling or in a downlink control information.

12. The method of claim 1, further comprising:

selecting the subframe to transmit the UCI; and

selecting at least one of a cyclic shift for a reference signal, a sequence for the reference signal, or a value for bits of a fixed location of the subframe to indicate transmission of the UCI in the subframe.

13. The method of claim 1, further comprising:

selecting a beta offset for transmission of the UCI based on at least one of a usable length of the subframe for transmitting the UCI, a number of punctured symbols in the subframe, or a number of partial symbols of the subframe.

14. The method of claim 1, further comprising:

receiving an uplink grant comprising information of whether or not to transmit the UCI during an uplink transmission.

15. A user equipment comprising:

a memory; and

a processor coupled to the memory, the processor being configured to;

receive an indication of a number of symbols of a subframe available for uplink transmission; and

rate match uplink control information (UCI) to the subframe based on the indication of the number of symbols.

16. The user equipment of claim 15, wherein the processor is further configured to map the UCI to the number of symbols of the subframe based on the indication of the number of symbols.

17. The user equipment of claim 15, wherein the number of symbols comprises a number of symbols for physical uplink shared channel transmission.

18. The user equipment of claim 15, wherein the number of symbols comprises a number of symbols for channel quality indication (CQI) transmission.

19. The user equipment of claim 15, wherein the processor is further configured to:

map the UCI to a first frequency band in a first slot of the subframe; and

map the UCI to a second frequency band in a second slot of the subframe.

20. The user equipment of claim 19, wherein the first frequency band and the second frequency band belong to different interlaces.

21. The user equipment of claim 15, wherein the processor is further configured to:

map the UCI to all resource blocks of a first interlace prior to mapping the UCI to any resource block of a second interlace based on the first interlace comprising a resource block associated with a lower frequency than any of the resource blocks of the second interlace.

22. The user equipment of claim 21, wherein the processor is further configured to map the UCI to all resource blocks of the first interlace and the second interlace prior to mapping UCI to any resource block of a third interlace based on the first interlace and the second interlace belonging to a first group of interlaces and the third interlace belonging to a second group of interlaces, wherein the first group of interlaces comprises a greater number of interlaces of consecutive allocation in frequency than the second group of interlaces.

23. The user equipment of claim 21, wherein the processor is further configured to map UCI to a subset of carriers of the resource blocks of the first interlace.

24. The user equipment of claim 15, wherein the processor is further configured to:

receive an indication of which subframes of a plurality of subframes to transmit the UCI; and

mapping the UCI to the subframes of the plurality of subframes.

25. The user equipment of claim 24, wherein the indication of which subframes is received at least one of using radio resource control (RRC) signaling or in a downlink control information.

26. The user equipment of claim 15, wherein the processor is further configured to:

select the subframe to transmit the UCI; and

select at least one of a cyclic shift for a reference signal, a sequence for the reference signal, or a value for bits of a fixed location of the subframe to indicate transmission of the UCI in the subframe.

27. The user equipment of claim 15, wherein the processor is further configured to:

select a beta offset for transmission of the UCI based on at least one of a usable length of the subframe for transmitting the UCI, a number of punctured symbols in the subframe, or a number of partial symbols of the subframe.

28. The user equipment of claim 15, wherein the processor is further configured to:

receive an uplink grant comprising information of whether or not to transmit the UCI during an uplink transmission.

29. A user equipment comprising:

means for receiving an indication of a number of symbols of a subframe available for uplink transmission; and

means for rate matching uplink control information (UCI) to the subframe based on the indication of the number of symbols.

30. A computer readable medium having instructions stored thereon for performing a method for wireless communication by a user equipment, the method comprising:

receiving an indication of a number of symbols of a subframe available for uplink transmission; and

rate matching uplink control information (UCI) to the subframe based on the indication of the number of symbols.