| 摘要 |
<p>A selective call system in which base stations (BS1, BS2) transmit address code words at a predetermined data rate. High rate telescript information having a length of say more than 500 characters, for example an E-mail message, is transmitted at a data rate greater than that used for sending address code words. In the event of the system being a simulcast system, intersymbol interference (ISI) may occur and in order to reduce the effects of ISI on the decoding of the telescript information whilst avoiding an unnecessarily large drain on the secondary station's batteries, the telescript information as received for a specific secondary station is stored and subsequently equalised in non-real time. The mobile terminal unit may include a transmitter for transmitting acknowledgement or other response signals, for example as spread spectrum signals. The acknowledgement signals may be used as a means for locating the mobile terminal unit.</p> |
