Granted Patent B2

US 12,696,118 · App. 18/315,185 · Granted Jul 28, 2026

Inventors: Andrei Dragos Radulescu (La Jolla, CA); Jing Sun (San Diego, CA); Kapil Bhattad (Bangalore, IN); Xiaoxia Zhang (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W24/10H04L1/0013H04L5/0048H04W56/001H04W72/23

Abstract

Claims (70)

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

receiving an indication of an aperiodic timing occasion for transmission of a channel state information reference signal via a wireless channel of an unlicensed radio frequency spectrum band;

measuring the channel state information reference signal during the aperiodic timing occasion based at least in part on the indication;

receiving control information comprising a resource grant indicating one or more resources of a common channel and comprising a channel state information request field and a channel state information report trigger to transmit a measurement report for the channel state information reference signal;

receiving, via the one or more resources, a transmission based at least in part on the resource grant;

measuring a channel state information based at least in part on the channel state information reference signal; and

transmitting the measurement report via the wireless channel based at least in part on the channel state information report trigger.

2 . The method of claim 1 , wherein the resource grant is without a deterministic channel resource for reporting the measurement report.

3 . The method of claim 2 , wherein the control information comprises a timing offset parameter indicating that the channel state information report trigger is transmitted in a separate transmission after the indication of the aperiodic timing occasion.

4 . The method of claim 1 , wherein the resource grant is directed to a group of monitoring UEs including the UE, the group of monitoring UEs further including connected UEs, idle UEs, UEs configured to monitor for a system information radio network temporary identifier, UEs configured to monitor for a paging radio network temporary identifier, UEs configured to monitor for a group common identifier, or any combination thereof.

5 . The method of claim 1 , wherein the common channel comprises a remaining minimum system information shared channel, a paging shared channel, an other system information shared channel, or a combination thereof.

6 . The method of claim 1 , further comprising:

identifying a channel state information configuration as part of a serving cell configuration, wherein the channel state information trigger is based at least in part on the channel state information configuration.

7 . The method of claim 1 , wherein receiving the control information comprises:

receiving the control information comprising a trigger to transmit the measurement report for a latest received channel state information reference signal.

8 . The method of claim 1 , further comprising:

identifying a quasi co-location relationship for receiving the channel state information reference signal based at least in part on one or more of the channel state information reference signal being multiplexed with a synchronization signal block, a proximity of the channel state information reference signal to a synchronization signal block, the channel state information reference signal overlapping with a half-slot comprising a synchronization signal block, a synchronization signal block immediately succeeding the channel state information reference signal, or a quasi co-location parameter.

9 . The method of claim 1 , further comprising:

receiving an indication of a configuration for the channel state information reference signal via control information or a physical broadcast channel message.

10 . The method of claim 1 , further comprising:

rate matching a remaining minimum system information transmission around the channel state information reference signal, wherein the channel state information reference signal is a non-zero power channel state information reference signal or a zero power channel state information reference signal.

11 . The method of claim 1 , wherein the measurement report indicates the measured channel state information.

12 . A method for wireless communication at a wireless device, comprising:

transmitting, to a user equipment (UE), an indication of a timing occasion for transmission of a channel state information reference signal via a wireless channel of an unlicensed radio frequency spectrum band during a slot that carries a synchronization signal block, wherein the channel state information reference signal is an aperiodic channel state information reference signal;

transmitting the channel state information reference signal via the wireless channel, wherein the channel state information reference signal is multiplexed with the synchronization signal block in the slot;

transmitting, to the UE, control information comprising a resource grant indicating one or more resources for a common channel and comprising a channel state information request field and a channel state information report trigger; and

transmitting, via the one or more resources, a transmission based at least in part on the resource grant.

13 . The method of claim 12 , wherein the resource grant is without a deterministic channel resource for reporting a measurement report.

14 . The method of claim 12 , further comprising:

monitoring the wireless channel for a measurement report from the UE based at least in part on the channel state information reference signal and the channel state information report trigger.

15 . The method of claim 12 , further comprising:

transmitting remaining minimum system information on a shared channel without rate matching around the channel state information reference signal.

16 . The method of claim 12 , wherein transmitting the control information comprises:

triggering the UE to transmit a measurement report for a latest received channel state information reference signal.

17 . A user equipment (UE) for wireless communication, comprising:

at least one processor,

at least one memory coupled with the at least one processor; and

instructions stored in the at least one memory and executable by the at least one processor to cause the UE to:

receive an indication of an aperiodic timing occasion for transmission of a channel state information reference signal via a wireless channel of an unlicensed radio frequency spectrum band;

measure the channel state information reference signal during the aperiodic timing occasion based at least in part on the indication;

receive control information comprising a resource grant indicating one or more resources of a common channel and comprising a channel state information request field and a channel state information report trigger to transmit a measurement report for the channel state information reference signal;

receive, via the one or more resources, a transmission based at least in part on the resource grant;

measure a channel state information based at least in part on the channel state information reference signal; and

transmit the measurement report via the wireless channel based at least in part on the channel state information report trigger.

18 . The UE of claim 17 , wherein the resource grant is without a deterministic channel resource for reporting the measurement report.

19 . The UE of claim 18 , wherein the control information comprises a timing offset parameter indicating that the channel state information report trigger is transmitted in a separate transmission after the indication of the aperiodic timing occasion.

20 . The UE of claim 17 , wherein the resource grant is directed to a group of monitoring UEs including the UE, the group of monitoring UEs further including connected UEs, idle UEs, UEs configured to monitor for a system information radio network temporary identifier, UEs configured to monitor for a paging radio network temporary identifier, UEs configured to monitor for a group common identifier, or any combination thereof.

21 . The UE of claim 17 , wherein the common channel comprises a remaining minimum system information shared channel, a paging shared channel, an other system information shared channel, or a combination thereof.

22 . The UE of claim 17 , wherein the instructions are further executable by the processor to cause the UE to:

identify a channel state information configuration as part of a serving cell configuration, wherein the channel state information trigger is based at least in part on the channel state information configuration.

23 . The UE of claim 17 , wherein the instructions to receive the control information are executable by the processor to cause the UE to:

receive the control information comprising a trigger to transmit the measurement report for a latest received channel state information reference signal.

24 . The UE of claim 17 , wherein the instructions are further executable by the processor to cause the UE to:

identify a quasi co-location relationship for receiving the channel state information reference signal based at least in part on one or more of the channel state information reference signal being multiplexed with a synchronization signal block, a proximity of the channel state information reference signal to a synchronization signal block, the channel state information reference signal overlapping with a half-slot comprising a synchronization signal block, a synchronization signal block immediately succeeding the channel state information reference signal, or a quasi co-location parameter.

25 . The UE of claim 17 , wherein the instructions are further executable by the processor to cause the UE to:

receive an indication of a configuration for the channel state information reference signal via control information or a physical broadcast channel message.

26 . The UE of claim 17 , wherein the instructions are further executable by the processor to cause the UE to:

rate match a remaining minimum system information transmission around the channel state information reference signal, wherein the channel state information reference signal is a non-zero power channel state information reference signal or a zero power channel state information reference signal.

27 . The UE of claim 17 , wherein the measurement report indicates the measured channel state information.

28 . An A wireless device for wireless communication, comprising:

at least one processor,

at least one memory coupled with the at least one processor; and

instructions stored in the at least one memory and executable by the at least one processor to cause the wireless device to:

transmit, to a user equipment (UE), an indication of a timing occasion for transmission of a channel state information reference signal via a wireless channel of an unlicensed radio frequency spectrum band during a slot that carries a synchronization signal block, wherein the channel state information reference signal is an aperiodic channel state information reference signal;

transmit the channel state information reference signal via the wireless channel, wherein the channel state information reference signal is multiplexed with the synchronization signal block in the slot;

transmit, to the UE, control information comprising a resource grant indicating one or more resources of a common channel and comprising a channel state information request field and a channel state information report trigger; and

transmit, via the one or more resources, a transmission based at least in part on the resource grant.

29 . The wireless device of claim 28 , wherein the resource grant is without a deterministic channel resource for reporting a measurement report.

30 . The wireless device of claim 28 , wherein the instructions are further executable by the processor to cause the wireless device to:

monitor the wireless channel for a measurement report from the UE based at least in part on the channel state information reference signal and the channel state information report trigger.

Assignments (2)

Priority Claims (1)

Continuity (2)

References Cited (18)