>what are you smokin? <
Nice, civilized response.....now go back to school before your parents find out. Usually replies like that do not deem any formal reply. But I'll make an exception. I'm always willing to help those who have difficulty understanding the issues at hand.
>As for packets, they can only use CDPD, which is a sneaker net over the top of TDMA, and when the network capacity gets overloaded, CDPD has nowhere to break in, so they got nothing to carry packets.<
You ever hear of a concept call level-of-service?
You may want to read up on digital technologies.....they have to start somewhere in the analog world, at which time efficient carrier modulation steps up to carry the end digital product through analog signaling...read a digital data stream(s) over a variable stepping (not 1s or 0s) transport carrier as defined by the appropriate standards.
You ever hear of ATM? It starts and ends on a TDMA channel in most cases, at which time each analog TDMA channel undergoes a higher-layer statistcal-muxing (ie multiple channels with pre-set quality of service such as minimum guaranteed throughput, and maximum burst when the network is not congested, with built-in throttling down mechanisms to detect forward/backward congestion states.), where each of these logical digital channels are either a static or on-demand virtual circuit. This ensures that the signal is never dropped in a healthy network and during peak times, the level of service is guaranteed and provided for by throttling back those sessions that have exceeded CIR (a frame-relay term that carried over to ATM, using another acronym.). The QOS is managed by the hierarchical routing protocol know as PNNI. The wireless network "transport" is very similar to the above.
Son, you are way out of your league. |
