IP Library Granted Patent US 11,405,147
Granted Patent B2
US 11,405,147 · App. 17/480,041 · Granted Aug 2, 2022

Enhanced wireless device and wireless network processes

Inventor: Alireza Babaei (Fairfax, VA)
Assignee: PanPsy Technologies, LLC
H04L1/1819H04L1/1896H04W72/1263H04W72/1289H04W76/28
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Quick Facts
Patent No.
US 11,405,147
App. No.
17/480,041
Granted
Aug 2, 2022
Kind
B2
Abstract

A wireless device may receive, in a first timing, a TB associated with a semi-persistent scheduling configuration. The wireless device may start a DRX retransmission timer in a first symbol after the first timing in response to determining to defer a HARQ feedback, associated with the TB, from a second timing to a later timing based on the second timing not being valid for transmission of the HARQ feedback.

Claims (46)

1. A method comprising:

receiving, by a wireless device, configuration parameters of:

a semi-persistent scheduling (SPS) configuration; and

one or more discontinuous reception (DRX) timers comprising a DRX retransmission timer;

receiving a downlink control information (DCI) indicating activation of the SPS configuration;

receiving, in a first timing, a first transport block (TB) associated with the SPS configuration;

determining a second timing of a first hybrid automatic repeat request (HARQ) feedback, associated with the first TB, based on the DCI and the first timing; and

starting the DRX retransmission timer in a first symbol, that is adjacent to the first timing, in response to determining to defer the first HARQ feedback based on an uplink control channel resource in the second timing overlapping with a downlink symbol.

2. The method of claim 1 , wherein the second timing is not valid for transmission of the first HARQ feedback based on the uplink control channel resource in the second timing overlapping with one or more symbols that are not usable for uplink transmission.

3. The method of claim 2 , wherein the second timing is not valid for transmission of the first HARQ feedback based on the uplink control channel resource in the second timing overlapping with the downlink symbol.

4. The method of claim 1 , further comprising deferring the first HARQ back until a valid uplink control channel resource that does not have a symbol overlapping with a downlink symbol.

5. The method of claim 1 , further comprising:

receiving, in a third timing, a second TB associated with the SPS configuration;

determining a fourth timing of a second HARQ feedback, associated with the second TB, based on the DCI and the third timing; and

starting the DRX retransmission timer in response to expiry of a HARQ round trip time (RTT) timer based on an uplink control channel resource in the fourth timing being valid for transmission of the second HARQ feedback.

6. The method of claim 5 , wherein the fourth timing is valid for transmission of the second HARQ feedback based on the uplink control channel resource in the fourth timing not overlapping with a downlink symbol.

7. The method of claim 5 , wherein the one or more DRX timers comprise the HARQ RTT timer.

8. The method of claim 1 , further comprising monitoring a control channel based on the DRX retransmission timer running.

9. The method of claim 1 , wherein the determining the second timing is based on a value of a downlink shared channel to HARQ feedback timing field of the DCI.

10. The method of claim 1 , wherein:

the configuration parameters comprise first configuration parameters of the SPS configuration; and

the receiving the TB is via radio resources determined based on the first configuration parameters.

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:

receive configuration parameters of:

a semi-persistent scheduling (SPS) configuration; and

one or more discontinuous reception (DRX) timers comprising a DRX retransmission timer;

receive a downlink control information (DCI) indicating activation of the SPS configuration;

receive, in a first timing, a first transport block (TB) associated with the SPS configuration;

determine a second timing of a first hybrid automatic repeat request (HARQ) feedback, associated with the first TB, based on the DCI and the first timing; and

start the DRX retransmission timer in a first symbol, that is adjacent to the first timing, in response to determining to defer the first HARQ feedback based on an uplink control channel resource in the second timing overlapping with a downlink symbol.

12. The wireless device of claim 11 , wherein the second timing is not valid for transmission of the first HARQ feedback based on the uplink control channel resource in the second timing overlapping with one or more symbols that are not usable for uplink transmission.

13. The wireless device of claim 12 , wherein the second timing is not valid for transmission of the first HARQ feedback based on the uplink control channel resource in the second timing overlapping with the downlink symbol.

14. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to defer the first HARQ back until a valid uplink control channel resource that does not have a symbol overlapping with a downlink symbol.

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

receive, in a third timing, a second TB associated with the SPS configuration;

determine a fourth timing of a second HARQ feedback, associated with the second TB, based on the DCI and the third timing; and

start the DRX retransmission timer in response to expiry of a HARQ round trip time (RTT) timer based on an uplink control channel resource in the fourth timing being valid for transmission of the second HARQ feedback.

16. The wireless device of claim 15 , wherein the fourth timing is valid for transmission of the second HARQ feedback based on the uplink control channel resource in the fourth timing not overlapping with a downlink symbol.

17. The wireless device of claim 15 , wherein the one or more DRX timers comprise the HARQ RTT timer.

18. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to monitor a control channel based on the DRX retransmission timer running.

19. The wireless device of claim 11 , wherein determining the second timing is based on a value of a downlink shared channel to HARQ feedback timing field of the DCI.

20. The wireless device of claim 11 , wherein:

the configuration parameters comprise first configuration parameters of the SPS configuration; and

receiving the TB is via radio resources determined based on the first configuration parameters.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2021
From: BABAEI, ALIREZA
To: PANPSY TECHNOLOGIES, LLC
Reel/Frame 058004/0180 →
Continuity (2)
Provisional Application 63080739 · Sep 20, 2020
Related Publication 20220094484A1 · Mar 24, 2022