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Title:
RADIO COMMUNICATION MOBILE STATION DEVICE AND MCS SELECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2008/056774
Kind Code:
A1
Abstract:
Provided is a radio communication mobile station device capable of preventing a transmission delay when a transmission data amount is increased in a radio communication system where persistent scheduling is performed. In this device, an MCS selection unit (104) selects a first MCS if the transmission data amount accumulated in a buffer of a data control unit (105) is smaller than a threshold value and selects a second MCS having a higher MCS level than the first MCS if the transmission data amount is not smaller than the threshold value. Thus, in a mobile station (100), data encoded and modulated according to the first MCS is transmitted during a normal state when the transmission data amount is small, and data encoded and modulated according to the second MCS having a higher MCS level than the first MCS is transmitted when the transmission data amount is increased to a large amount.

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Inventors:
FUTAGI SADAKI
IMAMURA DAICHI
OGAWA YOSHIHIKO
MATSUMOTO ATSUSHI
IWAI TAKASHI
HIRAMATSU KATSUHIKO
Application Number:
PCT/JP2007/071802
Publication Date:
May 15, 2008
Filing Date:
November 09, 2007
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
FUTAGI SADAKI
IMAMURA DAICHI
OGAWA YOSHIHIKO
MATSUMOTO ATSUSHI
IWAI TAKASHI
HIRAMATSU KATSUHIKO
International Classes:
H04B7/26; H04L27/00; H04W72/08; H04W28/18
Foreign References:
JP2006254390A2006-09-21
Other References:
NTT DOCOMO, NEC, SHARP: "Persistent Scheduling in E-UTRA", 3GPP TSG RAN WG1 MEETING #46, vol. R1-062286, 28 August 2006 (2006-08-28), pages 1 - 5
INTERDIGITAL COMMUNICATIONS CORPORATION: "Periodic Scheduling of Uplink Resources for LTE VoIP", 3GPP TSG RAN WG2 #56, vol. R2-063183, 6 November 2006 (2006-11-06), pages 1 - 6
Attorney, Agent or Firm:
WASHIDA, Kimihito (Shintoshicenter Bldg.24-1, Tsurumaki 1-chom, Tama-shi Tokyo 34, JP)
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