(19)
(11)EP 2 383 921 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
21.12.2011 Bulletin 2011/51

(43)Date of publication A2:
02.11.2011 Bulletin 2011/44

(21)Application number: 11176042.7

(22)Date of filing:  04.05.2007
(51)International Patent Classification (IPC): 
H04L 1/00(2006.01)
H04L 1/18(2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30)Priority: 27.04.2007 US 741571

(62)Application number of the earlier application in accordance with Art. 76 EPC:
07107587.3 / 1986365

(71)Applicant: RESEARCH IN MOTION LIMITED
Waterloo, Ontario N2L 3W8 (CA)

(72)Inventors:
  • Cai, Zhijun
    Euless, TX Texas 76039-4138 (US)
  • Womack, James
    Bedford, TX Texas 76022 (US)
  • Wu, Wei
    Coppell, TX Texas 75019 (US)

(74)Representative: MERH-IP Matias Erny Reichl Hoffmann 
Paul-Heyse-Strasse 29
80336 München
80336 München (DE)

  


(54)Slow adaptation of modulation and coding for packet transmission


(57) Systems and methods for performing MCS adaptation are provided. In some cases, the network (20-3) performs (5-3) MCS adaptation based on received ACKs.







Search report