| 摘要 |
<p>The present invention is directed to systems and methods for measuring the interference for computation of signal to interference ratio (SIR) in DSSS CDMA cellular communication systems, by selectively using a transmission gap in one of the control channels. A specific example embodiment is directed to the computation of the SIR in a system, such as the 3GPP system, where PCCPCH data is multiplexed with SCH data in the downlink from the base station. At the mobile unit, once the PCCPCH is located in the received communication signal, the receiver measures the traffic interference in a chip period in the PCCPCH channel that corresponds to an interval where there is a transmission gap in the PCCPCH data. This gap is provided in the 3GPP system for permit the transmission of primary and secondary SCH data. The SIR is readily determined using the measured interference in the transmission gap.</p> |
