(19)
(11) EP 4 487 535 A1

(12)

(43) Date of publication:
08.01.2025 Bulletin 2025/02

(21) Application number: 23705174.3

(22) Date of filing: 12.01.2023
(51) International Patent Classification (IPC): 
H04L 25/02(2006.01)
H04B 7/0452(2017.01)
(52) Cooperative Patent Classification (CPC):
H04L 25/0224; H04L 25/021; H04B 7/0626
(86) International application number:
PCT/US2023/060561
(87) International publication number:
WO 2023/164330 (31.08.2023 Gazette 2023/35)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 28.02.2022 US 202263268648 P
11.01.2023 US 202318152882

(71) Applicant: QUALCOMM INCORPORATED
San Diego, California 92121-1714 (US)

(72) Inventors:
  • SAYED HASSAN, Mohamad
    San Diego, California 92121 (US)
  • RADULESCU, Andrei Dragos
    San Diego, California 92121 (US)
  • JAYARAMAN, Srikant
    San Diego, California 92121 (US)
  • WALLACE, Mark
    San Diego, California 92121 (US)
  • GARYANTES, Michael Francis
    San Diego, California 92121 (US)
  • BLESSENT, Luca
    San Diego, California 92121 (US)
  • PRAKASH, Rajat
    San Diego, California 92121 (US)
  • SACHIDANAND SINHA, Abhishek Saurabh
    San Diego, California 92121 (US)
  • SHAH, Jigneshkumar
    San Diego, California 92121 (US)

(74) Representative: Jaeger, Michael David 
Maucher Jenkins Seventh Floor Offices Artillery House 11-19 Artillery Row
London SW1P 1RT
London SW1P 1RT (GB)

   


(54) ENHANCED FRONTHAUL INTERFACE SPLIT USING DEMODULATION REFERENCE SIGNAL CHANNEL ESTIMATES