IP Library Granted Patent US 12701583
Granted Patent B2
US 12701583 · App. 18/194,279 · Granted Aug 4, 2026

Techniques for physical uplink control channel adaptation

Inventors: Huilin Xu (Temecula, CA); Ahmed Elshafie (San Diego, CA); Hung Dinh Ly (San Diego, CA); Diana Maamari (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W72/232H04L5/0078H04W52/0203H04W72/21H04W72/0446
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Quick Facts
Patent No.
US 12701583
App. No.
18/194,279
Granted
Aug 4, 2026
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) and network entity may perform physical uplink control channel (PUCCH) resource adaptation in order for the network entity to reduce power consumption. For example, the UE may receive first control signaling indicating a first set of PUCCH resource occasions and a second set of PUCCH resource occasions, and transmit one or more uplink messages via the first set of PUCCH resource occasions. In some examples, the UE and the network entity may switch between operating using the first set of PUCCH resource occasions to operating using the second set of PUCCH resource occasions based on second control signaling indicating for the UE to switch between sets of PUCCH resource occasions. In some examples, the second control signaling may indicate for the UE to skip one or more uplink messages or PUCCH resource occasions.

Claims (64)

1 . A method for wireless communications at a user equipment (UE), comprising:

receiving first control signaling indicating at least a first set of physical uplink control channel resource occasions and a second set of physical uplink control channel resource occasions;

transmitting a first uplink message via a first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions;

switching from using resource occasions of the first set of physical uplink control channel resource occasions to using resource occasions of the second set of physical uplink control channel resource occasions, the switching being based at least in part on second control signaling indicating to switch from using the resource occasions of the first set of physical uplink control channel resource occasions to using the resource occasions of the second set of physical uplink control channel resource occasions;

transmitting a second uplink message via a second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein transmitting the second uplink message is after a threshold time offset from the second control signaling; and

resetting a duration of a timer based at least in part on transmission of the second uplink message via the second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein using the resource occasions of the second set of physical uplink control channel resource occasions is for the duration of the timer.

2 . The method of claim 1 , further comprising:

switching from using the resource occasions of the second set of physical uplink control channel resource occasions to using the resource occasions of the first set of physical uplink control channel resource occasions based at least in part on expiration of the timer, third control signaling, or a combination thereof.

3 . The method of claim 1 , wherein switching from using the resource occasions of the first set of physical uplink control channel resource occasions to using the resource occasions of the second set of physical uplink control channel resource occasions is in response to transmitting the first uplink message via the first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions.

4 . The method of claim 1 , further comprising:

transmitting uplink control information indicating to switch from using the resource occasions of the first set of physical uplink control channel resource occasions to using the resource occasions of the second set of physical uplink control channel resource occasions, wherein the second control signaling includes the uplink control information.

5 . The method of claim 1 , further comprising:

receiving downlink control information indicating to switch from using the resource occasions of the first set of physical uplink control channel resource occasions to using the resource occasions of the second set of physical uplink control channel resource occasions, wherein the second control signaling includes the downlink control information.

6 . The method of claim 1 , further comprising:

receiving downlink control information indicating to switch from using resource occasions of a first set of physical downlink control channel resource occasions to using resource occasions of a second set of physical downlink control channel resource occasions, wherein the switching is based at least in part on receiving the downlink control information, the second control signaling including the downlink control information.

7 . The method of claim 1 , further comprising:

receiving, via the first control signaling, a third set of physical uplink control channel resource occasions, wherein the third set of physical uplink control channel resource occasions comprises an empty set; and

switching from using the resource occasions of the second set of physical uplink control channel resource occasions to using resource occasions of the third set of physical uplink control channel resource occasions, the switching being based at least in part on third control signaling indicating to switch from using the resource occasions of the second set of physical uplink control channel resource occasions to using the resource occasions of the third set of physical uplink control channel resource occasions, wherein the switching is further based at least in part on the third control signaling indicating for the UE to skip one or more uplink messages.

8 . The method of claim 7 , wherein switching to the third set of physical uplink control channel resource occasions comprising the empty set is further based at least in part on a physical uplink control channel format of the one or more uplink messages.

9 . The method of claim 7 , wherein the third control signaling indicates a duration of a second timer associated with operating in the third set of physical uplink control channel resource occasions comprising the empty set, and operating in the third set of physical uplink control channel resource occasions comprising the empty set is for the duration of the second timer.

10 . The method of claim 7 , wherein switching to operating in the third set of physical uplink control channel resource occasions comprising the empty set is in accordance with a threshold time offset from the third control signaling.

11 . The method of claim 9 , further comprising:

transmitting uplink control information indicating that the UE is to skip the one or more uplink messages, wherein the third control signaling is the uplink control information.

12 . The method of claim 7 , further comprising:

receiving downlink control information indicating that the UE is to skip the one or more uplink messages, wherein the third control signaling is the downlink control information.

13 . The method of claim 7 , further comprising:

receiving downlink control information indicating for the UE to skip one or more resource occasions of a set of physical downlink control channel resource occasions, wherein switching to operating in the third set of physical uplink control channel resource occasions comprising the empty set is based at least in part on the downlink control information, and wherein the third control signaling is the downlink control information.

14 . A method for wireless communications at a network entity, comprising:

transmitting first control signaling indicating at least a first set of physical uplink control channel resource occasions and a second set of physical uplink control channel resource occasions;

receiving a first uplink message via a first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions;

switching from monitoring resource occasions of the first set of physical uplink control channel resource occasions to monitoring resource occasions of the second set of physical uplink control channel resource occasions, the switching being based at least in part on second control signaling indicating to switch from monitoring the resource occasions of the first set of physical uplink control channel resource occasions to monitoring the resource occasions of the second set of physical uplink control channel resource occasions;

receiving a second uplink message via a second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein receiving the second uplink message is after a threshold time offset from the second control signaling to monitoring the first physical uplink control channel resource occasion for the second uplink message; and

resetting a duration of a timer based at least in part on reception of the second uplink message via the second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein monitoring the resource occasions of the second set of physical uplink control channel resource occasions is for the duration of the timer.

15 . The method of claim 14 , further comprising:

switching from monitoring the resource occasions of the second set of physical uplink control channel resource occasions to monitoring the resource occasions of the first set of physical uplink control channel resource occasions based at least in part on expiration of the timer, third control signaling, or a combination thereof.

16 . The method of claim 14 , wherein switching from monitoring the resource occasions of the first set of physical uplink control channel resource occasions to monitoring the resource occasions of the second set of physical uplink control channel resource occasions is in response to receiving the first uplink message via the first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions.

17 . The method of claim 14 , further comprising:

receiving uplink control information indicating to switch from monitoring the resource occasions of the first set of physical uplink control channel resource occasions to monitoring the resource occasions of the second set of physical uplink control channel resource occasions, wherein the second control signaling includes the uplink control information.

18 . The method of claim 14 , further comprising:

transmitting downlink control information indicating to switch from monitoring the resource occasions of the first set of physical uplink control channel resource occasions to monitoring the resource occasions of the second set of physical uplink control channel resource occasions, wherein the second control signaling includes the downlink control information.

19 . The method of claim 14 , further comprising:

transmitting downlink control information indicating to switch from monitoring resource occasions of a first set of physical downlink control channel resource occasions to monitoring resource occasions of a second set of physical downlink control channel resource occasions, wherein the switching is based at least in part on receiving the downlink control information, the second control signaling including the downlink control information.

20 . The method of claim 14 , further comprising:

transmitting, via the first control signaling, a third set of physical uplink control channel resource occasions, wherein the third set of physical uplink control channel resource occasions comprises an empty set; and

switching from monitoring the resource occasions of the second set of physical uplink control channel resource occasions to monitoring resource occasions of the third set of physical uplink control channel resource occasions, the switching being based at least in part on third control signaling indicating to switch from monitoring the resource occasions of the second set of physical uplink control channel resource occasions to monitoring the resource occasions of the third set of physical uplink control channel resource occasions, wherein the switching is further based at least in part on the third control signaling indicating for a user equipment (UE) to skip one or more uplink messages.

21 . An apparatus for wireless communications at a user equipment (UE), comprising:

one or more processors;

one or more memories coupled with the one or more processors; and

instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:

receive first control signaling indicating at least a first set of physical uplink control channel resource occasions and a second set of physical uplink control channel resource occasions;

transmit a first uplink message via a first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions;

switch from using resource occasions of the first set of physical uplink control channel resource occasions to using resource occasions of the second set of physical uplink control channel resource occasions, the switching being based at least in part on second control signaling indicating to switch from using the resource occasions of the first set of physical uplink control channel resource occasions to using the resource occasions of the second set of physical uplink control channel resource occasions;

transmit a second uplink message via a second physical uplink control channel resource occasion of the second set of physical uplink control channel resource

occasions, wherein transmitting the second uplink message is after a threshold time offset from the second control signaling; and

reset a duration of a timer based at least in part on transmission of the second uplink message via the second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein using the resource occasions of the second set of physical uplink control channel resource occasions is for the duration of the timer.

22 . An apparatus for wireless communications at a network entity, comprising:

one or more processors;

one or more memories coupled with the processor one or more processors; and

instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:

transmit first control signaling indicating at least a first set of physical uplink control channel resource occasions and a second set of physical uplink control channel resource occasions;

receive a first uplink message via a first physical uplink control channel resource occasion of the first set of physical uplink control channel resource occasions;

switch from monitoring resource occasions of the first set of physical uplink control channel resource occasions to monitoring resource occasions of the second set of physical uplink control channel resource occasions, the switching being based at least in part on second control signaling indicating to switch from monitoring the resource occasions of the first set of physical uplink control channel resource occasions to monitoring the resource occasions of the second set of physical uplink control channel resource occasions;

receive a second uplink message via a second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein receiving the second uplink message is after a threshold time offset from the second control signaling to monitoring the first physical uplink control channel resource occasion for the second uplink message; and

reset a duration of a timer based at least in part on reception of the second uplink message via the second physical uplink control channel resource occasion of the second set of physical uplink control channel resource occasions, wherein monitoring the resource occasions of the second set of physical uplink control channel resource occasions is for the duration of the timer.