(19)
(11)EP 2 603 052 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
01.01.2014 Bulletin 2014/01

(43)Date of publication A2:
12.06.2013 Bulletin 2013/24

(21)Application number: 13157626.6

(22)Date of filing:  28.10.2008
(51)International Patent Classification (IPC): 
H04W 76/02(2009.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(30)Priority: 29.10.2007 US 983406 P
25.04.2008 US 47909

(62)Application number of the earlier application in accordance with Art. 76 EPC:
08844667.9 / 2210447

(71)Applicant: Interdigital Patent Holdings, Inc.
Wilmington, DE 19809 (US)

(72)Inventors:
  • Cave, Christopher R.
    Montreal, Québec H9A 3J2 (CA)
  • Kim, In H.
    Norristown, PA Pennsylvania 19403 (US)
  • Pelletier, Benoit
    Roxboro, Québec H8Y 1L3 (CA)
  • Marinier, Paul
    Brossard, Québec J4X 2J7 (CA)
  • Pani, Diana
    Montreal, Québec H3C 1Y9 (CA)

(74)Representative: Forsblom, Mattias Henrik et al
AWAPATENT AB P.O. Box 45086
104 30 Stockholm
104 30 Stockholm (SE)

  


(54)Method for detecting radio link failure for transmission over enhanced dedicated channel in a CELL_FACH state


(57) A method and apparatus are used for detecting a radio link (RL) failure and a post verification process. A quality of a downlink fractional dedicated physical channel (F-DPCH) is monitored once a transmission on an enhanced dedicated channel (E-DCH) has begun. It is determined whether the quality of the downlink F-DPCH is below a predefined threshold. If the quality is below the predefined threshold, then an occurrence of an RL failure is declared and a transmission over the E-DCH in a cell forward access channel (CELL_FACH) state is terminated. In a case of the post verification failure, E-DCH resources are released.







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