Method of performing random access procedure in wireless communication system

摘要

A method and device for performing contention resolution between a mobile communication terminal and a base station. The method according to an embodiment includes initiating a random access procedure by a medium access control (MAC) layer of the mobile communication terminal, including starting a contention resolution timer; and stopping the contention resolution timer and determining that the random access procedure was successfully completed upon receipt from the base station of a physical downlink control channel (PDCCH) transmission addressed to a cell-radio network temporary identity (C-RNTI) of the mobile communication terminal and containing a UL grant.

主权项

1. A method of performing contention resolution associated with a random access procedure between a mobile communication terminal and a base station, comprising:
transmitting a random access preamble; receiving a random access response; transmitting an uplink message containing a cell-radio network temporary identity (C-RNTI) of the mobile communication terminal and starting a contention resolution timer once the uplink message is transmitted; receiving a physical downlink control channel (PDCCH) transmission: determining whether the PDCCH transmission is addressed to the C-RNTI and the random access procedure is initiated due to downlink data arrival: and considering the contention resolution successful and stopping the contention resolution timer if the PDCCH transmission is addressed to the C-RNTI and the random access procedure is initiated due to downlink data arrival.