Dedicated signature allocation and choice

A mobile terminal for requesting a random access connection with a base station, the mobile terminal comprising:

• a transmitting unit configured to transmit information;
• a receiving unit configured to receive information;
• a display unit configured to display information;
• an input unit configured to receive inputs from a user;
• and
• a processing unit configured to:
• process the received information comprising at least one signature root sequence index, a cyclic shift parameter, and a dedicated signature parameter,
• generate a contention-free signature or a contention-based signature, and
• transmit the contention-free signature or the contention-based signature for random access,
• wherein the dedicated signature parameter being associated with a contention-free signature;
• wherein the contention-based signature being recognized based on the at least one signature root sequence index and the cyclic shift parameter,
• wherein the contention-free signature being recognized based on the dedicated signature parameter, and
• wherein the contention-based signature being associated with a first signature set and the contention-free signature being associated with a second signature set.

A method of requesting a random access connection in a wireless mobile terminal, the method comprising:

• the mobile terminal receiving information comprising at least one signature root sequence index, a cyclic shift parameter, and a dedicated signature parameter;
• the mobile terminal recognizing at least the contention-free signature or a contention-based signature;
• and
• the mobile terminal transmitting at least the contention-free signature or the contention-based signature for random access,
• wherein the dedicated signature parameter being associated with a contention-free signature,
• wherein the contention-based signature is recognized based on the at least one signature root sequence index and the cyclic shift parameter,
• wherein the contention-free signature is recognized based on the dedicated signature parameter, and
• wherein the contention-based signature is associated with a first signature set and the contention-free signature is associated with a second signature set.