Uplink transmission handling after a bandwidth part switch for dynamic uplink skipping

Patent metadata

Field	Value
Publication number	US-12501427-B2
Application number	US-202318303094-A
Country	US
Kind code	B2
Filing date	Apr 19, 2023
Priority date	Apr 19, 2023
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive first control information that enables the UE to skip transmission of a scheduled uplink message via an uplink skipping operation. The UE may receive second control information that requests the UE to switch an active BWP at the UE from a first BWP to a second BWP. The UE may receive third control information that schedules transmission of an uplink message at the UE during a time interval. Application of the uplink skipping operation to the uplink message may be based on the time interval being after the switch and whether the UE is scheduled to transmit a reference signal during the time interval. The UE may transmit, during the time interval and via the second BWP, a signal that is based on whether the UE applies the uplink skipping operation during the time interval.

First claim

What is claimed is:

1 . A network node for wireless communication, comprising:
a memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to:
receive, via a first bandwidth part, first control information that enables the network node to skip transmission of a scheduled uplink message via an uplink skipping operation;
receive, via the first bandwidth part, second control information that requests the network node to switch an active bandwidth part at the network node from the first bandwidth part to a second bandwidth part;
receive, via the first bandwidth part, third control information that schedules transmission of an uplink message at the network node during a time interval, wherein application of the uplink skipping operation to the uplink message is based on the time interval being after the switch and on whether the network node is scheduled to transmit a reference signal during the time interval; and
transmit a signal during the time interval and via the second bandwidth part, wherein the signal that is transmitted is based on whether the network node applies the uplink skipping operation during the time interval.

2 . The network node of claim 1 , wherein, to transmit the signal, the at least one processor is configured to:
refrain from application of the uplink skipping operation during the time interval; and transmit the uplink message during the time interval, wherein the signal is the uplink message.

3 . The network node of claim 2 , wherein the uplink skipping operation is not applied during the time interval based on the reference signal not being scheduled for transmission during the time interval.

4 . The network node of claim 1 , wherein, to transmit the signal, the at least one processor is configured to:
apply the uplink skipping operation during the time interval; and transmit the reference signal during the time interval, wherein the signal is the reference signal.

5 . The network node of claim 4 , wherein application of the uplink skipping operation during the time interval is based on the network node being scheduled to transmit the reference signal during the time interval.

6 . The network node of claim 1 , wherein the uplink skipping operation enables the network node to skip transmission of the scheduled uplink message based on a lack of uplink data at the network node during the time interval.

7 . The network node of claim 1 , wherein transmission of the signal via the second bandwidth part indicates that the network node successfully switched the active bandwidth part at the network node from the first bandwidth part to the second bandwidth part.

8 . The network node of claim 1 , wherein the at least one processor is further configured to:
receive, via the second bandwidth part, fourth control information that schedules communication on the second bandwidth part based on the active bandwidth part at the network node being successfully switched from the first bandwidth part to the second bandwidth part.

9 . The network node of claim 8 , wherein the at least one processor is further configured to:
participate in the communication via the second bandwidth part in response to the fourth control information.

10 . The network node of claim 1 , wherein the uplink message comprises a physical uplink shared channel message.

11 . The network node of claim 1 , wherein the reference signal comprises a sounding reference signal.

12 . A method of wireless communication performed by a network node, comprising:
receiving, via a first bandwidth part, first control information that enables the network node to skip transmission of a scheduled uplink message via an uplink skipping operation; receiving, via the first bandwidth part, second control information that requests the network node to switch an active bandwidth part at the network node from the first bandwidth part to a second bandwidth part; receiving, via the first bandwidth part, third control information that schedules transmission of an uplink message at the network node during a time interval, wherein application of the uplink skipping operation to the uplink message is based on the time interval being after the switch and on whether the network node is scheduled to transmit a reference signal during the time interval; and transmitting a signal during the time interval and via the second bandwidth part, wherein the signal that is transmitted is based on whether the network node applies the uplink skipping operation during the time interval.

13 . The method of claim 12 , wherein transmitting the signal comprises:
refraining from application of the uplink skipping operation during the time interval; and transmitting the uplink message during the time interval, wherein the signal is the uplink message.

14 . The method of claim 13 , wherein the uplink skipping operation is not applied during the time interval based on the reference signal not being scheduled for transmission during the time interval.

15 . The method of claim 12 , wherein transmitting the signal comprises:
applying the uplink skipping operation during the time interval; and transmitting the reference signal during the time interval, wherein the signal is the reference signal.

16 . The method of claim 15 , wherein application of the uplink skipping operation during the time interval is based on the network node being scheduled to transmit the reference signal during the time interval.

17 . The method of claim 12 , wherein the uplink skipping operation enables the network node to skip transmission of the scheduled uplink message based on a lack of uplink data at the network node during the time interval.

18 . The method of claim 12 , wherein transmission of the signal via the second bandwidth part indicates that the network node successfully switched the active bandwidth part at the network node from the first bandwidth part to the second bandwidth part.

19 . The method of claim 12 , further comprising:
receiving, via the second bandwidth part, fourth control information that schedules communication on the second bandwidth part based on the active bandwidth part at the network node being successfully switched from the first bandwidth part to the second bandwidth part.

20 . The method of claim 19 , further comprising:
participating in the communication via the second bandwidth part in response to the fourth control information.

21 . The method of claim 12 , wherein the uplink message comprises a physical uplink shared channel message.

22 . The method of claim 12 , wherein the reference signal comprises a sounding reference signal.

23 . An apparatus for wireless communication, comprising:
means for receiving, via a first bandwidth part, first control information that enables a network node to skip transmission of a scheduled uplink message via an uplink skipping operation; means for receiving, via the first bandwidth part, second control information that requests the network node to switch an active bandwidth part at the network node from the first bandwidth part to a second bandwidth part; means for receiving, via the first bandwidth part, third control information that schedules transmission of an uplink message at the network node during a time interval, wherein application of the uplink skipping operation to the uplink message is based on the time interval being after the switch and on whether the

Assignees

• Qualcomm Inc

Inventors

• Yang Xinjie
• Sharma Hemant
• Ladhagiri Krishnakumar Sai Lokesh

Classifications

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W72/23

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

• H04W72/0457

  Variable allocation of band or rate · CPC title

• H04W72/1268 Primary

  of uplink data flows · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title