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:
Nov. 03, 2020

Filed:

May. 13, 2016
Applicant:

Nokia Solutions and Networks Oy, Espoo, FI;

Inventors:

Esa Tapani Tiirola, Kempele, FI;

Kari Pekka Pajukoski, Oulu, FI;

Eeva Lahetkangas, Oulu, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04L 27/2602 (2013.01); H04L 27/2605 (2013.01); H04L 27/2607 (2013.01); H04L 27/2655 (2013.01); H04W 72/0446 (2013.01);
Abstract

Coexistence of OFDM transmissions with different sampling rates, subcarrier spacing, symbol duration, bandwidths, but a constant FFT size, all with the same integer ratio (downclocking or upclocking) N=2, 4, 8 . . . Now called different numerology. Problem of Time alignment due to the presence of alternating long CP and short CPs in a slot. At the slot level the transmissions are aligned, but not at the symbol level. The application proposes to send after the first symbol for N=1 a so-called Time Alignment Period of same duration for each transmission in order allegedly to allow the network nodes to synchronize their timings or clocks without interfering with the transmission or reception of any symbols or CPs of other transmissions.


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