Controlled download of data

摘要

A data item 11 is cyclically broadcast from a wireless transceiver 1 as a number of individual data segments 13. Receipt of all of the individual data segments 13 by a mobile device 9 is required to successfully receive the entirety of the data item 11. The time required to transmit all of the data segments 13 is increased by transmitting each data segment 13 at a minimum time interval from one another, or alternatively or additionally varying the rate of data transmission. A mobile device user is therefore required to remain within the locality of the wireless transceiver 1 for a minimum period of time.