GPRS Air Interface The air interface (Um) is the logical link between the MS and the BSS. Figure 25 shows the GPRS Protocol Stack from the perspective of the BSS. GPRS Protocol Stack(Thomas, R, et al, 1999, France Telecom) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email a link to a friend (Opens in new window)MoreClick to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Like this:Like Loading...