  In this paper, we conduct wireless channel measurements in indoor corridor
scenarios at 2.4, 5 and 6 GHz bands with bandwidth of 320 MHz. The measurement
results of channel characteristics at different frequency bands such as average
power delay profile (APDP), path loss (PL), delay spread (DS), and Ricean K
factor (KF) are presented and analyzed. It is found that the PL exponent (PLE)
and PL offset \beta in the floating-intercept (FI) model tend to increase with
the increase of frequency. The DS and KF values of the three frequency bands in
line of sight (LOS) scenario are basically the same. These results are
significant for the design of communication systems.
