What is data rate?
Data rate is basically the rate at which data is transferred from one place
to the other through wired or wireless medium.
To measure data rate one need to consider how much time it took to transfer
so much of data from one point(source) to the other point(destination).
Data rate = Number of bytes transferred/Total time taken(second).
It is specified in Mbps or Mega bits per second.
Following table summarizes downlink and uplink data rate of various wireless technologies which include GSM,GPRS,HSCSD,EDGE,WCDMA,HSPA,CDMA,CDMA2000,TD-SCDMA and LTE.
Typical Data rate of wireless technologies
| Wireless Technology | Downlink Data Rate(Mbps) | Uplink Data Rate(Mbps) |
|---|---|---|
| GSM | 0.0096 | 0.0096 |
| GPRS (4R1T) | 0.08 (4 time slots) | 0.02 ( 1 time slot) |
| HSCSD ( 3R1T) | 0.0432 ( 3 time slots) | 0.0144 ( 1 time slot) |
| EDGE (4R1T) | 0.2368 (4 time slots) | 0.0592 (1 time slot) |
| EDGE Evolution (8R6T) | 1.89 ( 8 time slots) | 1.42 (6 time slots) |
| WCDMA R99 | 0.384 | 0.384 |
| HSPA | 14.4 | 5.76 |
| HSPA+ Dual cell HSDPA bandwidth of 10MHz with 64QAM,2x2MIMO |
84.4 | 23 |
| CDMA (as per IS-95-B) | 0.1152 | 0.0096 |
| CDMA 2000(as per EVDO Rev B) | 4.9 N, N is no. of subcarriers that are used as per 1.25MHz BW. modulation type 64QAM(downlink) |
1.8 N |
| TD-SCDMA (single carrier HSPA+ with 64QAM modulation) |
8.4 | 5 |
| LTE(BW of 20MHz,modulation of 64QAM and 4x4 MIMO ) | 345.6 | 86.4 |
What is?
what is RF? what is wireless ? what is zigbee? what is Bluetooth? what is lightwave RF? what is z-wave? what is microcontroller? what is GSM? what is GPRS? what is infrared?
RF and Wireless Terminologies
SATELLITE
RF
Antenna
Avionics
Wireless
LiFi vs WiFi
MiFi vs WiFi
BPSK vs QPSK
BJT vs FET
PDH vs SDH
CS vs PS
MS vs PS