Patent ID: 7567808
Filing Date: 2009-07-28
Classification: H04W

Abstract:
1. A handover method for a mobile device in a wireless communication system, the wireless communication system having a first base station and a second base station, the mobile device receiving a first signal from the first base station and receiving a second signal from the second base station, the method comprising: storing a predetermined power level; measuring a first power level of the first signal and a second power level of the second signal; recording the first power level as an equivalent power level when the first and the second power level are substantially equivalent; estimating a handover power level which is between the equivalent signal power level and the predetermined power value level; and handing the mobile device over to the second base station if the first signal power level is substantially equal to the handover power value level; calculating a power decay rate value; and determining the handover power level according to the power decay rate value, the equivalent signal power level and the predetermined power level.