The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 21, 2022

Filed:

May. 01, 2020
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Xingqin Lin, San Jose, CA (US);

Ansuman Adhikary, Santa Clara, CA (US);

Asbjörn Grövlen, Stockholm, SE;

Dennis Hui, Sunnyvale, CA (US);

Niklas Johansson, Uppsala, SE;

Yutao Sui, Solna, SE;

Mårten Sundberg, Årsta, SE;

Yi-Pin Eric Wang, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04L 27/26 (2006.01); H04W 74/00 (2009.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0833 (2013.01); H04L 27/2613 (2013.01); H04L 27/2636 (2013.01); H04W 72/0453 (2013.01); H04W 74/004 (2013.01);
Abstract

An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.


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