Communication device receives data from, or a mobile communications network and transmits the data to the mobile communication network. Mobile communications network includes one or more network elements configured to form a radio access interface for transmitting and receiving data. Radio access interface provides a plurality of communication resource elements over the frequency range for the downlink and uplink, the communication resource elements are formed by dividing the sub-carrier into a plurality of time periods at different frequencies, sub one or more of the carriers, in the time domain, is provided to form a plurality of frequency division multiplexed symbols, each time period includes a frequency division multiplexing symbol of the predetermined number. Uplink includes a shared channel for providing communication resources for allocation to the communication device by the mobile communication network for transmitting data to the mobile communication network on the uplink. Shared channel is shared with other communication terminals, it provides a communication resource containing the predetermined number of frequency division multiplexed symbols for allocation to the communication device in each time period in the time domain. The controller is configured to control so as to receive a signal to be transmitted and a receiver unit a signal to the transmitter unit to transmit or receive data. The controller transmits a request for transmitting data by the number less than the number of frequency division multiplexed symbols available on a shared channel to the mobile communication network, a frequency division multiplex communication device to transmit data on a shared channel receiving a number of subsets of instructions a predetermined symbol from the mobile communications network, so as to occupy a small number of frequency division multiplexing symbols than the number of predetermined number of frequency division multiplexing symbol in the time period of the shared channel configured to control the transmitter unit and a receiver unit so as to transmit the signals representing data in a shared channel.
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