Granted Patent B2

US 12,588,026 · App. 17/748,510 · Granted Mar 24, 2026

Inventors: Mohammad Ghadir Khoshkholgh Dashtaki (Burnaby, CA); Ali Cagatay Cirik (Chantilly, VA); Esmael Hejazi Dinan (McLean, VA); Hua Zhou (Vienna, VA); Yunjung Yi (Vienna, VA)

Assignee: Ofinno, LLC

H04W72/21H04L1/1812

Abstract

Claims (58)

1 . A method comprising:

sending, by a wireless device, from a media access control (MAC) layer of the wireless device to a physical layer of the wireless device, a first indication indicating transmission of a scheduling request (SR);

receiving, by the MAC layer from the physical layer, a second indication of the SR being dropped by the physical layer, wherein the SR being dropped is determined by the physical layer, based on the number of symbols used for a physical uplink control channel (PUCCH) transmission conveying the SR being larger than available symbols in a slot; and

based on the receiving the second indication of the SR being dropped by the physical layer:

stopping monitoring a physical downlink control channel (PDCCH);

stopping an SR prohibit timer; and

decrementing an SR counter.

2 . The method of claim 1 , further comprising:

receiving one or more SR configuration parameters indicating at least one of:

the SR prohibit timer;

a maximum SR transmission counter; or

one or more physical uplink control channel (PUCCH) resources; and

based on the sending the first indication, starting the SR prohibit timer and starting monitoring the PDCCH.

3 . The method of claim 2 , wherein

the first indication of the transmission of the SR instructs the physical layer to transmit the SR on one valid PUCCH resource corresponding to an SR configuration in a slot.

4 . The method of claim 2 , wherein the SR prohibit timer is started and the SR counter is incremented in response to the sending the first indication.

5 . The method of claim 4 , wherein the determining is based on the slot being used for transmission of at least one hybrid automatic repeat request (HARQ) acknowledgement in at least one resource using PUCCH format 1.

6 . The method of claim 4 , wherein the determining is based on the slot being used for transmission of multiple overlapping PUCCHs and physical uplink shared channels (PUSCHs), wherein:

at least one of the PUCCHs is used for transmission of at least one HARQ acknowledgement or at least one channel state information (CSI) report; and

the at least one HARQ acknowledgement and/or the at least one CSI report is multiplexed with a PUSCH.

7 . The method of claim 4 , further comprising prohibiting the physical layer from sending, to the MAC layer, the second indication of a second SR being dropped when the wireless device communicates with a terrestrial base station.

8 . The method of claim 1 , further comprising prohibiting the MAC layer from sending the first indication to the physical layer while the SR prohibit timer is running.

9 . The method of claim 1 , wherein the wireless device communicates with a base station via a non-terrestrial network (NTN).

10 . The method of claim 1 , wherein:

a value range of the SR prohibit timer is extended by an offset; and

the offset is based on a propagation delay between the wireless device and a non-terrestrial network (NTN) node.

11 . A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

send, from a media access control (MAC) layer of the wireless device to a physical layer of the wireless device, a first indication indicating transmission of a scheduling request (SR);

receive, by the MAC layer from the physical layer, a second indication of the SR being dropped by the physical layer, wherein the SR being dropped is determined by the physical layer, based on the number of symbols used for a physical uplink control channel (PUCCH) transmission conveying the SR being larger than available symbols in a slot; and

based on the receiving the second indication of the SR being dropped by the physical layer:

stop monitoring a physical downlink control channel (PDCCH);

stop an SR prohibit timer; and

decrement an SR counter.

12 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

receive one or more SR configuration parameters indicating at least one of:

the SR prohibit timer;

a maximum SR transmission counter; or

one or more physical uplink control channel (PUCCH) resources; and

based on the sending the first indication, start the SR prohibit timer and start monitoring the PDCCH.

13 . The wireless device of claim 12 , wherein

the first indication of the transmission of the SR instructs the physical layer to transmit the SR on one valid PUCCH resource corresponding to an SR configuration in a slot.

14 . The wireless device of claim 12 wherein the SR prohibit timer is started and the SR counter is incremented in response to the sending the first indication.

15 . The wireless device of claim 14 , wherein the determining is based on the slot being used for transmission of at least one hybrid automatic repeat request (HARQ) acknowledgement in at least one resource using PUCCH format 1.

16 . The wireless device of claim 14 , wherein the determining is based on the slot being used for transmission of multiple overlapping PUCCHs and physical uplink shared channels (PUSCHs), wherein:

at least one of the PUCCHs is used for transmission of at least one HARQ acknowledgement or at least one channel state information (CSI) report; and

the at least one HARQ acknowledgement and/or the at least one CSI report is multiplexed with a PUSCH.

17 . The wireless device of claim 14 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to prohibit the physical layer from sending, to the MAC layer, the second indication of a second SR being dropped when the wireless device communicates with a terrestrial base station.

18 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to prohibit the MAC layer from sending the first indication to the physical layer while the SR prohibit timer is running.

19 . The wireless device of claim 11 , wherein the wireless device communicates with a base station via a non-terrestrial network (NTN).

20 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

send, from a media access control (MAC) layer of the wireless device to a physical layer of the wireless device, a first indication indicating transmission of a scheduling request (SR);

receive, by the MAC layer from the physical layer, a second indication of the SR being dropped by the physical layer, wherein the SR being dropped is determined by the physical layer, based on the number of symbols used for a physical uplink control channel (PUCCH) transmission conveying the SR being larger than available symbols in a slot; and

based on the receiving the second indication of the SR being dropped by the physical layer:

stop monitoring a physical downlink control channel (PDCCH);

stop an SR prohibit timer; and

decrement an SR counter.

Assignments (1)

Continuity (2)

References Cited (59)