Sierra Wireless RAVEN 1X 20070914 用户手册
Introduction to the PinPoint X
Rev 3.0B Feb.08
10
EDGE
EDGE (Enhanced Data rates for GSM Evolution) provides end‐
to‐end packet data services with an enhanced connectivity
building on GPRS technology and using the established GSM
networks. EDGE provides higher transmission rates and better
transmission quality for data than GPRS. EDGE can carry data
at speeds typically up to 384 kbit/s in packet mode.
to‐end packet data services with an enhanced connectivity
building on GPRS technology and using the established GSM
networks. EDGE provides higher transmission rates and better
transmission quality for data than GPRS. EDGE can carry data
at speeds typically up to 384 kbit/s in packet mode.
GPRS
General Packet Radio Service (GPRS) is packet‐switched with
many users sharing the same transmission channel, but only
transmitting when they have data to send. This means that the
total available bandwidth can be immediately dedicated to
those users who are actually sending at any given moment,
providing higher utilization where users only send or receive
data intermittently. GPRS provides speeds of 30–70 kbps with
bursts up to 170 kbps.
many users sharing the same transmission channel, but only
transmitting when they have data to send. This means that the
total available bandwidth can be immediately dedicated to
those users who are actually sending at any given moment,
providing higher utilization where users only send or receive
data intermittently. GPRS provides speeds of 30–70 kbps with
bursts up to 170 kbps.