Title:
BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2008/029693
Kind Code:
A1
Abstract:
A base station apparatus comprising a retransmission request detecting unit
for detecting a retransmission request from a radio communication terminal,
a band allocation unit for allocating a communication band used for packet communication,
a modulation class acquiring unit for calculating a modulation class at the time
of the retransmission such that the number of packets to be retransmitted are
equal to the number of packets at the time of the previous transmission from the
band information on the communication band allocated by the band allocation
unit and the amount of data transmitted by the packets having received the retransmission
request, a modulation class judging unit for judging whether the modulation
class is lower than a modulation class at the time of the previous packet transmission,
and a retransmission unit for retransmitting the packets having received the
retransmission request according to the result of the judgment of the modulation
class.
Inventors:
TANIGAWA, Hironobu (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
谷川 弘展 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
NAKAMURA, Yasuhiro (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
中村 泰浩 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
谷川 弘展 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
NAKAMURA, Yasuhiro (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
中村 泰浩 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
Application Number:
JP2007/066797
Publication Date:
March 13, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
KYOCERA CORPORATION (6 Takedatobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 6128501, JP)
京セラ株式会社 (〒01 京都府京都市伏見区竹田鳥羽殿町６番地 Kyoto, 6128501, JP)
TANIGAWA, Hironobu (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
谷川 弘展 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
NAKAMURA, Yasuhiro (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
京セラ株式会社 (〒01 京都府京都市伏見区竹田鳥羽殿町６番地 Kyoto, 6128501, JP)
TANIGAWA, Hironobu (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
谷川 弘展 (〒02 神奈川県横浜市都筑区加賀原２丁目１番１号 京セラ株式会社 横浜事業所内 Kanagawa, 2248502, JP)
NAKAMURA, Yasuhiro (Yokohama Office 1-1, Kagahara 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 02, 2248502, JP)
International Classes:
H04L1/16; H04J1/00; H04J11/00; H04L1/00; H04W28/04; H04W72/04; H04W88/08; H04L1/16; H04J1/00; H04J11/00; H04L1/00; H04W28/02; H04W72/00; H04W88/00
Attorney, Agent or Firm:
SHIGA, Masatake (2-3-1, Yaesu Chuo-k, Tokyo 53, 1048453, JP)
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