| 摘要 |
Cell scanning operations are enhanced making them more time and power efficient. A base station communicates with mobile radios in a cellular communication system. The base station transmits in a cell a known symbol sequence over a broadcast channel to permit mobiles to detect and synchronize to the base station. It transmits a time indicator indicating when the base station will transmit service information from which a mobile may determine whether the base station can provide a desired communications service. After a time period associated with the time indicator, the base station transmits the service information. A mobile radio in or near the cell scans for and detects the broadcast signal. A decoder in the mobile decodes the broadcast signal and detects a time period associated with receiving the broadcast information. Based on the time period, the decoder halts further decoding of the broadcast signal. Later, the decoder resumes decoding of the broadcast signal in accordance with the time period and acquires the broadcast information from the broadcast signal. |
