IP Library › Granted Patent US 12,192,942
Granted Patent B2
US 12,192,942 · App. 18/531,810 · Granted Jan 7, 2025

Random access response window configuration

Inventors: Hyoungsuk Jeon (Centreville, VA); Esmael Hejazi Dinan (McLean, VA); Kyungmin Park (Vienna, VA); Alireza Babaei (Fairfax, VA); Hua Zhou (Vienna, VA)
Assignee: Ofinno, LLC
H04W56/0045H04B7/0695H04W16/28H04W48/20H04W74/006H04W76/40
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Quick Facts
Patent No.
US 12,192,942
App. No.
18/531,810
Granted
Jan 7, 2025
Kind
B2
Abstract

A wireless device receives one or more broadcast messages indicating a first time offset for starting a random access response (RAR) window and preamble transmission occasions. Each of the preamble transmission occasions is associated with a respective synchronization signal (SS)-physical broadcast channel (PBCH) block of SS-PBCH blocks. The wireless device determines, for a preamble transmission, a preamble transmission occasion of the preamble transmission occasions. The preamble transmission occasion is associated with an SS-PBCH block selected from the SS-PBCH blocks. The wireless device starts the RAR window from a starting time based on the preamble transmission occasion, the first time offset, and a second time offset. The wireless device receives, during the RAR window, an RAR of the preamble transmission.

Claims (62)

1. 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 one or more broadcast messages indicating:

a first time offset for starting a random access response (RAR) window; and

preamble transmission occasions, wherein each of the preamble transmission occasions is associated with a respective synchronization signal (SS)-physical broadcast channel (PBCH) block of SS-PBCH blocks;

determine, for a preamble transmission, a preamble transmission occasion of the preamble transmission occasions, wherein the preamble transmission occasion is associated with an SS-PBCH block selected from the SS-PBCH blocks;

start the RAR window from a starting time based on:

the preamble transmission occasion;

the first time offset; and

a second time offset; and

receive, during the RAR window, an RAR of the preamble transmission.

2. The wireless device of claim 1 , wherein the instructions further cause the wireless device to select, based on a received signal strength of the SS-PBCH block, the SS-PBCH block among the SS-PBCH blocks.

3. The wireless device of claim 1 , wherein the instructions further cause the wireless device to transmit the preamble transmission via the preamble transmission occasion.

4. The wireless device of claim 1 , wherein the starting time occurs after the preamble transmission occasion with the first time offset and the second time offset.

5. The wireless device of claim 1 , wherein the instructions further cause the wireless device to receive the RAR based on a radio network temporary identifier of the wireless device.

6. The wireless device of claim 1 , wherein the second time offset is predefined.

7. The wireless device of claim 6 , wherein the preamble transmission occasion comprises:

a subframe;

a slot;

a mini-slot; or

a duration of one or more orthogonal frequency division multiplexing (OFDM) symbols.

8. A base station comprising:

one or more processors; and

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

transmit one or more broadcast messages indicating:

a first time offset for starting a random access response (RAR) window; and

preamble transmission occasions, wherein each of the preamble transmission occasions is associated with a respective synchronization signal (SS)-physical broadcast channel (PBCH) block of SS-PBCH blocks;

receive, from a wireless device, a preamble transmission via a preamble transmission occasion of the preamble transmission occasions; and

transmit, to the wireless device, an RAR of the preamble transmission during the RAR window that starts from a starting time based on:

the preamble transmission occasion;

the first time offset; and

a second time offset.

9. The base station of claim 8 , wherein the instructions further cause the base station to transmit the RAR with a best uplink beam pair link.

10. The base station of claim 8 , wherein the starting time occurs after the preamble transmission occasion with the first time offset and the second time offset.

11. The base station of claim 8 , wherein the instructions further cause the base station to receive the preamble transmission via the preamble transmission occasion.

12. The base station of claim 8 , wherein the second time offset is predefined.

13. The base station of claim 12 , wherein the preamble transmission occasion comprises:

a subframe;

a slot;

a mini-slot; or

a duration of one or more orthogonal frequency division multiplexing (OFDM) symbols.

14. 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:

receive one or more broadcast messages indicating:

a first time offset for starting a random access response (RAR) window; and

preamble transmission occasions, wherein each of the preamble transmission occasions is associated with a respective synchronization signal (SS)-physical broadcast channel (PBCH) block of SS-PBCH blocks;

determine, for a preamble transmission, a preamble transmission occasion of the preamble transmission occasions, wherein the preamble transmission occasion is associated with an SS-PBCH block selected from the SS-PBCH blocks;

start the RAR window from a starting time based on:

the preamble transmission occasion;

the first time offset; and

a second time offset; and

receive, during the RAR window, an RAR of the preamble transmission.

15. The non-transitory computer-readable medium of claim 14 , wherein the instructions further cause the wireless device to select, based on a received signal strength of the SS-PBCH block, the SS-PBCH block among the SS-PBCH blocks.

16. The non-transitory computer-readable medium of claim 14 , wherein the instructions further cause the wireless device to transmit the preamble transmission via the preamble transmission occasion.

17. The non-transitory computer-readable medium of claim 14 , wherein the starting time occurs after the preamble transmission occasion with the first time offset and the second time offset.

18. The non-transitory computer-readable medium of claim 14 , wherein the instructions further cause the wireless device to receive the RAR based on a radio network temporary identifier of the wireless device.

19. The non-transitory computer-readable medium of claim 14 , wherein the second time offset is predefined.

20. The non-transitory computer-readable medium of claim 19 , wherein the preamble transmission occasion comprises:

a subframe;

a slot;

a mini-slot; or

a duration of one or more orthogonal frequency division multiplexing (OFDM) symbols.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2026
From: OFINNO, LLC
To: BLOOMSBURY DESIGN LABS LLC
Reel/Frame 075081/0540 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2023
From: JEON, HYOUNGSUK; DINAN, ESMAEL HEJAZI; PARK, KYUNGMIN; BABAEI, ALIREZA; ZHOU, HUA
To: OFINNO, LLC
Reel/Frame 065962/0881 →
Continuity (6)
Continuation 17717363 · Apr 11, 2022
Continuation 17020139 · Sep 14, 2020
Continuation 16101126 · Aug 10, 2018
Provisional Application 62543830 · Aug 10, 2017
Provisional Application 62543833 · Aug 10, 2017
Related Publication 20240107477A1 · Mar 28, 2024
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