US 12,356,460 B2
Dynamic active time trigger in contention free random access
Ping Yuan, Beijing (CN); Pingping Wen, Shanghai (CN); and Chunli Wu, Beijing (CN)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/766,997
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Nov. 7, 2019, PCT No. PCT/CN2019/116326
§ 371(c)(1), (2) Date Apr. 6, 2022,
PCT Pub. No. WO2021/087884, PCT Pub. Date May 14, 2021.
Prior Publication US 2022/0369377 A1, Nov. 17, 2022
Int. Cl. H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) 20 Claims
OG exemplary drawing
 
1. A first device, comprising:
at least one processor; and
at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the first device to:
receive a random access request from a second device in a discontinuous reception mode whereby the second device discontinuously monitors control information and data transmitted from the first device;
determine an offset between a reception of the random access response and a start of monitoring scheduling information from the first device based on a latency requirement of communications between the first device and the second device, wherein determining the offset comprises:
determining that the latency requirement exceeds a predetermined threshold latency; and
determining the offset as a first value in accordance with the determination that the latency requirement exceeds the predetermined threshold latency, the first value being equal to a first Timing Advance broadcasted by the first device:
set the indicator to be a first predefined value indicating the first value;
based on the random access request, transmit a random access response to the second device, the random access response comprising: the indicator of the offset, and a flag indicating the indicator is present in the random access response; and
transmit the scheduling information to the second device after the offset elapses.