GPRS, Sorry I didn’t see your reply.
“4. After refresh, browser displays missing image ——–> is this case, the MFS will establish another DL TBF to send the missing part of the web page?? or it will use the first established DL TBF?????
The DL TBF will be released after there is no more data to send. It is kept alive for few seconds, so in case of a missing image, it’s very probable the same DL TBF will be re-used to transmit it. However it depends how long the webserver took to actually detect missing image and decide to resend it.
But anyway, I think you got the idea of how it works 🙂