FIELD: information technology.
SUBSTANCE: invention relates to an arbitrary access procedure for use by a wireless communication user terminal during communication with a base station (unit B or eNB) of a radio access network, particularly E-UTRA network. User equipment (UE) sends an arbitrary access preamble over an arbitrary access channel separately or before sending an arbitrary access message packet which is sent over a shared channel, but not earlier than the user equipment receives one or more messages confirming reception of the preamble or enabling allocation of shared channel resources for sending a message packet, as well as providing a preamble identifier which can then be used by the radio access network to request retransmission of the message packet if needed.
EFFECT: provision for good coverage and little delay using few resources.
49 cl, 4 dwg
