Telefonaktiebolaget LM Ericsson (publ)
Network Node and Method for Evaluating Channel of License-Assisted Access Cell in Wireless Communication Network

Abstract:

A network node (110) and method therein for evaluating a channel in a License Assisted Access, LAA, cell in a wireless communication network (100) are disclosed. The network node starts a Listen Before Talk, LBT, procedure for data transmission when a Discovery Reference Signal, DRS, is to be transmitted; and start an LBT procedure for DRS transmission in parallel with the LBT procedure for data transmission when a time of the LBT procedure for data transmission reaches a predefined value or the LBT procedure for data transmission fails.