PWT(Personal Wireless Telecommunications) basics
US equivalent of DECT is referred as PWT(Personal Wireless Telecommunications). Following are the features/specifications of
PWT system used for cordless telephony.
• Bandwidth is 20 MHz
• Frequency range is from 1.91 to 1.92 GHz
• Access Scheme is TDD/TDMA/FDMA
• Carrier bandwidth is 1.25MHz
• Total no. of carriers are 8
• Channels per carrier are 12
• Total number of channels are 96
• Handoff is supported
• Transmission data rate is 1.152 Mbps
• Speech data rate is 32 Kbps
• ADPCM is used as speech coding.
• π/4 DQPSK is used as modulation technique.
• Peak output power is 90 mWatt
• Mean output power is 10 mWatt
• Maximum supported cell radius is 30- 100 meters
Cordless Telephone Basics
Refer Cordless Telephone System basics and frequency allocations.
DECT Link
What is Difference between
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile
wibro vs mobile wimax
wimax vs lte
HSDPA vs HSUPA
SCPC Vs. MCPC
TD-SCDMA Vs. WCDMA Vs. CDMA2000
FDMA Vs. TDMA Vs. CDMA
Diplexer versus Duplexer
R&S CMU200 Vs. Agilent 8960