Search International and National Patent Collections

1. (WO2016053836) TECHNIQUES FOR ACCESSING A CELL USING AN UNLICENSED RADIO FREQUENCY SPECTRUM BAND

Pub. No.:    WO/2016/053836    International Application No.:    PCT/US2015/052582
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Tue Sep 29 01:59:59 CEST 2015
IPC: H04W 74/08
H04W 16/14
Applicants: QUALCOMM INCORPORATED
Inventors: VAJAPEYAM, Madhavan, Srinivasan
DAMNJANOVIC, Aleksandar
MALLADI, Durga,Prasad
WEI, Yongbin
Title: TECHNIQUES FOR ACCESSING A CELL USING AN UNLICENSED RADIO FREQUENCY SPECTRUM BAND
Abstract:
Techniques are described for wireless communication. One method includes winning a contention (520) for access to an unlicensed radio frequency spectrum band, transmitting (530) a request message upon winning the contention for access to the unlicensed radio frequency spectrum band, and receiving (535) a response message over the unlicensed radio frequency spectrum band. The request message is transmitted by a user equipment, UE, on an enhanced physical random access channel, ePRACH, to access a cell that operates in the unlicensed radio frequency spectrum band.