  The $pp\to \{W, W'\} \to l\nu$ and $pp\to \{\gamma, Z, Z'\} \to l^+l^-$
($l=e,\mu$) processes in the $SU(3)_C\times SO(5)\times U(1)_X$ gauge-Higgs
unification (GHU) models are studied, where $W'$ and $Z'$ bosons are
Kaluza-Klein (KK) exited states of the electroweak gauge bosons. From the
experimental data collected at the Large Hadron Collider, constraints on the KK
mass scale and the Aharonov-Bohm phase are obtained. One can explore the KK
mass scale in the GUT inspired GHU model up to 18 TeV for the luminosity 300
fb$^{-1}$ and 22 TeV for the luminosity 3000 fb$^{-1}$ at $\sqrt{s}=14$ TeV.
