| 摘要 |
An apparatus and method reduce transmit power fluctuations in a wireless communication network. In one embodiment, a base station transmitter transmits communication signals as needed, e.g., overhead channel signals, dedicated traffic channel signals, etc., at whatever combined power level is required for such signals. Where the combined transmit power for the communication signals falls below a target level, the transmitter transmits additional power via one or more null signals, e.g., signals not intended for use by any receiving station, at whatever transmit power is needed to make up the difference and thereby maintain the total transmit power substantially at the target level. For example, the transmitter may transmit a shared packet data channel signal with either null data or user data, depending on whether user data is available for any station sharing the channel, and thereby avoid power fluctuations that would arise from intermittent transmission of the shared signal. |
