So don’t do that, then 
Requiring acknowledgement of each small “chunk” of data is inherently going to make your protocol slow & inefficient
And the inherent latencies over a GPRS link will simply magnify the effect!
So don’t do that, then
Requiring acknowledgement of each small “chunk” of data is inherently going to make your protocol slow & inefficient
And the inherent latencies over a GPRS link will simply magnify the effect!