Patent ID: 8208426

Claim:
A method of determining a composition of a multi-bit non-synchronized random access preamble message in a mobile radio communications device, the non-synchronized random access preamble message comprising Cause ID bits and selective bits, wherein said selective bits comprise at least signature bits for collision avoidance, the method comprising: selecting said selective bits in response to instructions received at the mobile radio communications device, wherein the instructions indicate four solutions including Channel Quality Indication bits, said selecting comprising: when the instruction indicates a first solution, a random access of a Handover type does not include the Channel Quality Indication bits, and random access preambles of other types include the Channel Quality Indication bits; when the instruction indicates a second solution, a random access preamble of an Initial Access typed does not include the Channel Quality Indication bits, and random access preambles of other types include the Channel Quality Indication bits; when the instruction indicates a third solution, a random access preamble of a Scheduling Request type does not include the Channel Quality Indication bits, and random access preambles of other types include the Channel Quality Indication bits; and when the instruction indicates a fourth solution, a random access preamble of a Uplink Synchronization type does not include the Channel Quality Indication bits, and random access preambles of other types include the Channel Quality Indication bits.