LTN(Low Throughput Network)
PHY : UNB
UNB stands for Ultra Narrow Band and it is one of LTN radio access technology defined in ETSI GS LTN 003. It is not described in very detail in this spec. For now, following is the only description in terms of PHY described in LTN 003. I will keep updating as find more detailed information.
Following is Radio requirement for uplink specified in 5.2.2.1 of LTN 003.
|
Item |
Specification |
|
Channelization Mask |
100 hz (600 Hz in USA) |
|
Uplink baud rate |
100 baud (600 baud in USA) |
|
Modulation Scheme |
BPSK |
|
Uplink Transmission Power |
Compliant with local regulation |
|
Sensitivity |
High Sensitivity Reciever (i.e better than -13 dBm) |
Following is Radio requirement for downlink specified in 5.2.3.1 of LTN 003.
|
Item |
Specification |
|
Channelization Mask |
dynamic selection |
|
Downlink baud rate |
600 baud |
|
Modulation Scheme |
GFSK |
|
Downlink Transmission Power |
500 mW |