(19)
(11) EP 2 957 138 A1

(12)

(43) Date of publication:
23.12.2015 Bulletin 2015/52

(21) Application number: 13706873.0

(22) Date of filing: 14.02.2013
(51) International Patent Classification (IPC): 
H04W 56/00(2009.01)
(86) International application number:
PCT/US2013/026201
(87) International publication number:
WO 2014/126573 (21.08.2014 Gazette 2014/34)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(71) Applicant: BlackBerry Limited
Waterloo, ON N2K 0A7 (CA)

(72) Inventors:
  • XU, Hua
    Kanata, Ontario K2K 3K1 (CA)
  • GAO, Shiwei
    Kanata, Ontario K2K 3K1 (CA)
  • ZHU, Yajun
    Beijing 100020 (CN)
  • CAI, Zhijun
    Irving, Texas 75039 (US)
  • BONTU, Chandra Sekhar
    Kanata, Ontario K2K 3K1 (CA)
  • SONG, Yi
    Irving, Texas 75039 (US)

(74) Representative: Fennell, Gareth Charles et al
Kilburn & Strode LLP 20 Red Lion Street
London WC1R 4PJ
London WC1R 4PJ (GB)

   


(54) DESIGN FOR SMALL CELL DEMODULATION REFERENCE SIGNAL AND INITIAL SYNCHRONIZATION