СПОСОБ И УСТРОЙСТВО ДЛЯ ВЫБОРА МЕЖДУ МНОГОЧИСЛЕННЫМИ НЕСУЩИМИ НА ОСНОВАНИИ ИЗМЕРЕНИЙ ЭНЕРГИИ СИГНАЛОВ

摘要

Receivers accommodating carrier frequency selection methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, an estimate of the channel quality corresponding to the currently used carrier and an alternative carrier is generated without switching between carriers. Transmitters of different cells and/or different sectors primarily use different carrier frequencies but periodically transmit using a neighboring sector's carrier frequency. Mobile node receivers use a single RF chain with a controllable RF filter to receive and process a signal within a first selected carrier band including two components, a first signal component identified with the first currently selected band and a second signal component identified with a second alternative band.; Separate quality indicator values are obtained from the first and second signal components, compared, and a determination is made as to whether the receiver's RF filter should be switched to the second band.