Uci transmission for overlapping uplink resource assignments with repetition

Patent metadata

Field	Value
Publication number	US-2021136791-A1
Application number	US-202017136797-A
Country	US
Kind code	A1
Filing date	Dec 29, 2020
Priority date	Jan 19, 2018
Publication date	May 6, 2021
Grant date	—

Abstract

Certain aspects of the present disclosure provide techniques for uplink control information (UCI) transmission for overlapping physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) resource assignments with repetition. A method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving scheduling to transmit on the PUSCH in a first one or more slots associated with a first number of repetitions and scheduling to transmit on the PUCCH in a second one or more slots associated with a second number of repetitions. The scheduled transmissions overlap in at least one slot. The method includes determining which channel to transmit UCI on and which channel to drop for each of the first and second one or more slots. The method includes transmitting or dropping the UCI in the first and second one or more slots in accordance with the determination.

First claim

What is claimed is:

1 . A method for wireless communications by a user equipment (UE), comprising:
scheduling a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions; scheduling a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions, wherein the PUSCH transmission and the PUCCH transmission overlap in at least one slot; determining that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots; and based on the determining that there is a sufficient number of symbols available:
transmitting the UCI on the PUCCH, and
dropping the PUSCH transmission in only the at least one overlapping slot.

2 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.

3 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.

4 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.

5 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on whether the PUCCH transmission or the PUSCH transmission is scheduled to be transmitted earlier than the other.

6 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a time a resource assignment for the PUCCH transmissions is received and a time that a resource assignment for the PUSCH transmission is received.

7 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot according to a single-slot rule for transmitting UCI.

8 . The method of claim 7 , further comprising determining a beam to use for transmitting the UCI in the at least one overlapping slot according to the single-slot rule.

9 . The method of claim 1 , wherein the second number of repetitions is greater than 1.

10 . The method of claim 1 , further comprising determining to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a type of service the UE is scheduled to transmit on the PUSCH.

11 . The method of claim 10 , wherein the type of service comprises enhanced mobile broadband (eMBB) service or ultra-reliable low-latency communication (URLLC) service.

12 . An apparatus for wireless communications, comprising:
at least one processor; and a memory coupled to the at least one processor, the memory comprising code executable by the at least one processor to cause the apparatus to:
schedule a physical uplink shared channel (PUSCH) transmission in a first one or more slots associated with a first number of repetitions;
schedule a physical uplink control channel (PUCCH) transmission in a second one or more slots associated with a second number of repetitions,
wherein the PUSCH transmission and the PUCCH transmission overlap in at least one slot;
determine that there is a sufficient number of symbols available to transmit uplink control information (UCI) in the second one or more slots; and
based on the determining that there is a sufficient number of symbols available:
transmit the UCI on the PUCCH, and
drop the PUSCH transmission in only the at least one overlapping slot.

13 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a first priority level associated with the UCI and a second priority level associated with the PUSCH.

14 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on priority levels of a type of information associated with the UCI, wherein the priority levels comprise, in descending order of priority, ACK/NACK information, scheduling request (SR), a first type of channel state information (CSI), and a second type of CSI.

15 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a radio resource control (RRC) configuration.

16 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on whether the PUCCH transmission or the PUSCH transmission is scheduled to be transmitted earlier than the other.

17 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a time a resource assignment for the PUCCH transmissions is received and a time that a resource assignment for the PUSCH transmission is received.

18 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot according to a single-slot rule for transmitting UCI.

19 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine a beam to use for transmitting the UCI in the at least one overlapping slot according to a single-slot rule.

20 . The apparatus of claim 12 , wherein the second number of repetitions is greater than 1.

21 . The apparatus of claim 12 , wherein the memory further comprises code executable by the at least one processor to cause the apparatus to determine to transmit the UCI on the PUCCH and drop the PUSCH transmission in only the at least one overlapping slot based on a type of service the apparatus is scheduled to transmit on the PUSCH.

22 . The apparatus of claim 21 , wherein the type of service comprises enhanced mobile broadband (eMBB) service or ultra-reliable low-latency communication (URLLC) service.

23 . An apparatus for wireless communication, comprising:
means for scheduling a

Assignees

• Qualcomm Inc

Inventors

• Akkarakaran Sony
• Chen Wanshi
• Luo Tao
• Huang Yi
• Wang Xiao Feng
• Gaal Peter
• Wang Renqiu

Classifications

• H04W72/569 Primary

  of the traffic information · CPC title

• H04W72/23

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

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/231

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title

• H04L5/0044 Primary

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title