Title:
アップリンク負荷推定方法および装置
Document Type and Number:
Japanese Patent JP4805950
Kind Code:
B2
Abstract:
An inherent non-observability of the thermal noise power level is circumvented by estimating an upper limit of the thermal noise power level by time evaluations. An instantaneous total received wideband power is measured in a receiver. Preferably, also an instantaneous sum of powers of all links used in the same cell is provided. A quantity (P′), preferably the difference between the instantaneous total received wideband power and the instantaneous sum of powers of all links used in the same cell, is followed (110) during a time period (TLag). A minimum value (PMIN) of that quantity is then used as an estimate of the thermal noise power level upper limit. Preferably, the time period is configured as a sliding window. An improved determination of noise rise can then be calculated and used for controlling traffic within the cell.
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Inventors:
Wigren, Tolbern
Gunner, Peters
Estman, thomas
Gunner, Peters
Estman, thomas
Application Number:
JP2007551564A
Publication Date:
November 02, 2011
Filing Date:
June 08, 2005
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
H04J13/00; H04B17/00; H04W24/00; H04W52/14; H04B1/707
Domestic Patent References:
| JP2003218737A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama