METHOD FOR RANDOM ACCESS TO A SECONDARY CELL AND RECEIVING DATA Russian patent published in 2016 - IPC H04W74/00 

FIELD: communication.

SUBSTANCE: present invention relates to a random access in the field of wireless communication and particularly to a random access in the case of multiple cells carrier aggregation. For a procedure of randomly accessing a secondary cell (SCell), the UE has accessed a primary cell (PCell), the PCell and the SCell belong to different timing advance groups, the first cell transmits (A, A′, B) a random access command to the UE, the command is used for instructing the UE to access the SCell. According to the random access command, the UE transmits (C) a random access preamble to the SCell.

EFFECT: preferably the first cell comprises another cell which cross-carrier schedules the PCell or the SCell.

13 cl, 1 dwg