US 2021/0345398 A1 · ADAPTIVE RANDOM ACCESS RESPONSE WINDOW

Abstract

This disclosure relates generally to wireless communications and, more particularly, to systems and methods for determining an adaptive random access response window length in non-terrestrial networks. In one embodiment, a method performed by a communication device includes: receiving system information from a communication node, wherein the communication node communicates using a satellite in orbit or a high altitude platform station (HAPS); and determining an adaptive random access response window length based on the system information and whether the communication device has access to situation information that: characterizes a location of the communication device, an ephemeris of the satellite or a trajectory of the HAPS, and a payload type of the satellite or the HAPS.

Claims20

Dependent claims

A method performed by a communication device, comprising:

determining a start of a random access response window and monitoring for a signal from a communication node within the random access response window, wherein the communication node communicates using a satellite in orbit or a high altitude platform station (HAPS).

Dependencies are inferred from the claim text.

Facts

Application

17/377,928Filed 16 Jul 2021

Priority

17 Jan 2019

Published

4 Nov 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 74/002
Wireless channel access: transmission of channel access control information
H04B 7/1851
Space-based or airborne stations; Stations for satellite systems: systems using a satellite or space-based relay
H04W 56/00
Synchronisation arrangements
H04W 56/0045
Compensating for timing error of reception due to propagation delay: compensating for timing error by altering transmission time

Adaptive random access response window

Life of this patent

Adaptive random access response window

Life of this patent

Abstract

Claims20