|
Radio Specifications |
| |
| Applicable standards: |
RCR STD-27B |
| uplink (handset transmit): |
940-956 MHz and 1429-1453 MHz |
| downlink (handset receive): |
810-826 MHz and 1477-1501 MHz |
| multiple access scheme: |
TDMA
(40 msec frame divided into 6 Tx or Rx slots of 6.66 msec duration. When half-rate codecs become practical, systems may switch to 12 time slots per frame) |
| duplexing scheme: |
FDD/TDD
(Tx and Rx are performed sequentially, not simultaneously) |
| TX/RX spacing: |
130 MHz in the 800 MHz band; 48 MHz in the 1500 MHz band |
| channel spacing: |
25 interleaved 50 kHz |
| channel bit rate: |
42 kb/s |
| full rate channels per carrier: |
6 |
| modulation: |
pi/4 DQPSK, alpha=0.5 |
| transmit power (mobile unit): |
class I: 3.0 W; class II: 2.0 W; class III: 0.8 W; class IV: 0.3 W
(power output during Tx slot) |
| transmit power (base station): |
not specified |
| cell radius: |
0.5 - 20 km |
| Coding algorithm: |
VSELP (11.2kbps) |
| Delay Spread Equalization: |
option |
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