Patent ID: 8619682

Claim:
A method for enabling a user equipment to perform a random access procedure in a wireless communication system, the method comprising: selecting randomly a random access preamble from a set of random access preambles; selecting a random access occasion from a set of random access occasions, each random access occasion of said set of random access occasions indicating possible time-frequency resources used for transmitting said selected random access preamble; transmitting the selected random access preamble on the selected random access occasion; determining a random access identifier to identify a downlink control channel for a random access response as a response to the transmitted random access preamble, wherein the random access identifier is determined by the user equipment based on the selected random access occasion; determining whether the downlink control channel identified by the random access identifier is received; and when the downlink control channel identified by the random access identifier is received, receiving the random access response via a downlink shared channel, the downlink shared channel being associated with the identified downlink control channel.