Patent ID: 7450958
Filing Date: 2008-11-11
Classification: H04B

Abstract:
1. A method for displaying signal strength bars in a wireless terminal device comprising: analyzing RSSI (Received Signal Strength Indicator) values of the wireless terminal device consecutively collected for a predetermined time T and analyzing C/I (Carrier to Interference) ratios consecutively calculated for the predetermined time T; determining a number of signal strength bars to be displayed on the wireless terminal device based on the analysis result of analyzing the RSSI values and C/I ratios; and displaying said determined number of signal strength bars on the wireless terminal device, wherein the analyzing step further comprises: a. consecutively collecting a predetermined number of RSSI values for a predetermined unit time t and storing the collected RSSI values; b. consecutively calculating a predetermined number of C/I ratios for the predetermined unit time t and storing the calculated C/I ratios; c. calculating an average value of n higher RSSI among the average values of the predetermined number of RSSI values (RSSI_AVR value) collected in step a and storing the calculated RSSI_AVR value; d. calculating an average value of n higher C/I among the average values of the predetermined number of C/I ratios (C/I AVR value) calculated in step b and storing the calculated C/I_AVR value; e. repeating steps a-d a predetermined number N times; f. summing said N number of RSSI_AVR values obtained by the execution of step e and determining the sum of the RSSI_AVR values as an analysis result of the RSSI values for the predetermined time T; and g. summing said N number of C/I_AVR values calculated by the execution of step e, and determining the sum of the C/I_AVR values as an analysis result of the C/I ratios for the predetermined time T.