Uplink channel for wireless communications

A transmission method for use in a wireless communication system comprising a base station and one or more terminals wherein the base station transmits a signal to a said terminal which indicates to the terminal one or more possible characteristics of a further signal for transmission from the terminal to the base station, wherein said one or more possible characteristics include at least one of:

• one or more locations for transmission of the further signal in the frequency domain;
• and
• one or more locations for the transmission of the further signal in the time domain;
• wherein said one or more possible characteristics indicate to the terminal further information relating to the base station or system.

A wireless communication system comprising a base station and one or more terminals, wherein:

• the base station is arranged to transmit a signal to a said terminal, and to provide the terminal with possible characteristics of a further signal for transmission from the terminal to the base station, said possible characteristics including at least one of:
• one or more locations for transmission of the further signal in the time domain;
• and
• one or more locations for the transmission of the further signal in the frequency domain;
• and wherein
• the terminal is arranged to transmit the further signal with one or more characteristics selected by the terminal from the possible characteristics, the selected one or more characteristics indicating further information relating to the terminal.

A terminal for use in a wireless communication system and configured for:

• receiving a signal from a base station;
• receiving information on possible characteristics of a further signal for transmission from the terminal to the base station, said possible characteristics including at least one of:
• one or more locations for transmission of the further signal in the time domain;
• and
• one or more locations for the transmission of the further signal in the frequency domain;
• and
• transmitting said further signal with at least one of said one or more possible characteristics in such a manner as to indicate further information relating to the terminal.

A base station for use in a wireless communication system and configured for transmitting a signal to a said terminal which indicates to the terminal one or more possible characteristics of a further signal for transmission from the terminal to the base station, wherein said one or more possible characteristics include at least one of:

• one or more locations for transmission of the further signal in the frequency domain;
• and
• one or more locations for the transmission of the further signal in the time domain;
• wherein said one or more possible characteristics indicate to the terminal further information relating to the base station or system.