Eun K Kim

Address:

6323 Laurel Run, Houston, TX 77084

Phone:

(281)8584179

VIN:

1HGCM66577A041934

Make:

HONDA

Model:

ACCORD

Year:

2007

US Patent:

20210014694, Jan 14, 2021

Filed:

Jun 18, 2020

Appl. No.:

16/946361

Inventors:

- Suwon-si, KR
Hongbo Si - Plano TX, US
Eun Sun Kim - Austin TX, US

International Classification:

H04W 16/14
H04W 80/08
H04L 5/00
H04W 74/08
H04L 27/26

Abstract:

A method of a user equipment (UE) in a wireless communication system supporting a shared spectrum channel access is provided. The method comprises: receiving, from a base station (BS), a set of higher layer parameters including a subcarrier spacing of a physical random access channel (PRACH) preamble, a logical root index (i) for the PRACH preamble, and an index (zeroCorrelationZoneConfg); determining a sequence length (L) for the PRACH preamble based on the subcarrier spacing of the PRACH preamble; determining a physical root index (i) for the PRACH preamble based on the logical root index (i); determining a cyclic shift (N) for the PRACH preamble based on the index (zeroCorrelationZoneConfg); generating the PRACH preamble based on the determined sequence length L, the determined physical root index i, and the determined cyclic shift N; and transmitting, to the base station (BS) over the shared spectrum channel, the PRACH preamble.