Title:
BASE STATION AND METHOD IN MOBILE COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/148590
Kind Code:
A1
Abstract:
A base station used in a mobile communication system using a single-carrier method for uplink includes: means for classifying a plurality of user devices into two or more groups according to a pass loss between each of user devices and a base station for each of the user devices; and a scheduler for planning uplink resource allocation for allocation to the user devices. Signals destined to respective users having a plurality of frequency components arranged at an identical frequency interval are multiplexed by the distribute frequency division multiplex method so that the signals orthogonally intersect on the frequency axis. The scheduler plans the resource allocation so that user devices belonging to different groups use different group bands or different time slots. The group band is defined by dividing the system band for each group.
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Inventors:
KAWAMURA TERUO (JP)
OFUJI YOSHIAKI (JP)
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
ONOE SEIZO (JP)
OFUJI YOSHIAKI (JP)
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
ONOE SEIZO (JP)
Application Number:
PCT/JP2007/061941
Publication Date:
December 27, 2007
Filing Date:
June 13, 2007
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
KAWAMURA TERUO (JP)
OFUJI YOSHIAKI (JP)
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
ONOE SEIZO (JP)
KAWAMURA TERUO (JP)
OFUJI YOSHIAKI (JP)
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
ONOE SEIZO (JP)
International Classes:
H04B1/707; H04B7/26; H04J1/00; H04J11/00; H04J13/00; H04W4/06; H04W16/02; H04W16/14; H04W28/04; H04W72/04; H04W72/08; H04W72/12; H04W88/08
Domestic Patent References:
| WO2002073831A1 | 2002-09-19 |
Foreign References:
| JP2006169451A | 2006-06-29 |
Other References:
NTT DOCOMO ET AL.: "Frequency Domain Channel-Dependent Scheduling with Adaptive Transmission Bandwidth of Pilot Channel for CQI Measurement for E-UTRA Uplink", 3GPP TSG RAN WG1 MEETING #45, vol. R1061203, 8 May 2006 (2006-05-08), XP003020636
NTT DOCOMO ET AL.: "Multiplexing Method for Orthogonal Reference Signals for E-UTRA Uplink", 3GPP TSG RAN WG1 LTE ADHOC, vol. R1-061676, 27 June 2006 (2006-06-27), XP003020637
See also references of EP 2037693A4
NTT DOCOMO ET AL.: "Multiplexing Method for Orthogonal Reference Signals for E-UTRA Uplink", 3GPP TSG RAN WG1 LTE ADHOC, vol. R1-061676, 27 June 2006 (2006-06-27), XP003020637
See also references of EP 2037693A4
Attorney, Agent or Firm:
ITOH, Tadahiko (Yebisu Garden Place Tower20-3, Ebisu 4-Chome,Shibuya-K, Tokyo 32, JP)
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