Lee, Hong, Degerman, Kang & Waimey
Method and apparatus for performing contention based random access procedure over contention free random access procedure in wireless communication system
A method and apparatus for performing a random access procedure in a wireless communication system is provided. A user equipment (UE) performs a contention free random access procedure on a first frequency, detects a failure of the contention free random access procedure, and performs a contention based random access procedure. When the first frequency is occupied by other media as a result of listen-before-talk (LBT) operation, the contention based random access procedure may be performed on a second frequency.
LG ELECTRONICS INC.
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inventional additional inventional inventional inventional
Seungjune Sunyoung Youngdae Sangwon
Yi Lee Lee Kim