| 摘要 |
PROBLEM TO BE SOLVED: To estimate reverse link loading in a wireless communication system.SOLUTION: The reverse link interference is measured and reverse link receiver noise is measured. The reverse link interference is compared to the reverse link receiver noise by dividing the interference power by the receiver noise power. The reverse link receiver noise is measured in an OFDMA system by nulling transmission from access terminals within a cell and nearby during a null time and frequency interval. To measure the reverse link interference, local null time and frequency intervals are designated, the access terminals within the cell null their transmissions during the designated local null time and frequency intervals, and interference power is measured in the local null time and frequency intervals. Alternatively, the interference power is measured by subtracting pairs of pilot symbols that are contiguous to each other in time or frequency. |
