Title:
COMMUNICATION QUALITY DETERMINING METHOD, MOBILE STATION, BASE STATION, AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/114873
Kind Code:
A1
Abstract:
It requires a good communication quality of uplink to execute a high-rate packet communication by use of a transmission channel of a large capacity such as E-DCH. However, when a link imbalance has occurred, a mobile station cannot estimate the communication quality of the uplink from the communication quality of the downlink. Then, a path loss is determined from a set power of a common pilot channel notified from a base station and from a reception power of the common pilot channel received at the mobile station. Then, the reception power at the base station is estimated based on the path loss, and an interference power notified from the base station and the estimated reception power are used to estimate SIR at the base station, thereby determining the communication quality of the uplink.
Inventors:
WAKABAYASHI HIDEJI (JP)
SUGISAWA KOUTAROU (JP)
SUGISAWA KOUTAROU (JP)
Application Number:
PCT/JP2005/007538
Publication Date:
November 02, 2006
Filing Date:
April 20, 2005
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
WAKABAYASHI HIDEJI (JP)
SUGISAWA KOUTAROU (JP)
WAKABAYASHI HIDEJI (JP)
SUGISAWA KOUTAROU (JP)
International Classes:
H04B1/707; H04B1/7097; H04W24/00
Domestic Patent References:
| WO2003037027A1 | 2003-05-01 |
Foreign References:
| JPH09270733A | 1997-10-14 | |||
| JP2004260467A | 2004-09-16 | |||
| JP2005045316A | 2005-02-17 | |||
| JP2002198899A | 2002-07-12 |
Other References:
"3GPP,3GPP TS25.309 V6.2.0.", March 2005 (2005-03-01), XP002990835
See also references of EP 1873925A4
See also references of EP 1873925A4
Attorney, Agent or Firm:
Takahashi, Shogo c/o Mitsubishi Denki Kabushiki kaisha Corporate Intellectual Property Division (7-3 Marunouchi 2-Chome, Chiyoda-k, Tokyo ., JP)
Download PDF:
Previous Patent: HOIST DEVICE FOR ELEVATOR
Next Patent: PRODUCT WITH INSULATING FILM HAVING EXCELLENT METAL GLOSS AND GOOD DURABILITY
Next Patent: PRODUCT WITH INSULATING FILM HAVING EXCELLENT METAL GLOSS AND GOOD DURABILITY