Iot sdk thesis



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EIT Thesis IoT SDK by Hrudaynath

2.2.2
 
NB-IoT Deployment 
3GPP defines three deployment scenarios for NB-IoT: Standalone Deployment, Guard 
Band Deployment, In-band Deployment. Hence, NB-IoT offers flexibility to choose the 


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deployment scenario out of three defined ones, based on the application and availability of 
spectrum [17].
 
Figure 2.2.1 NB-IoT Deployment Scenarios [16] 
In-Band Deployment 
One or more physical resource blocks (PRBs) are allocated from the existing LTE range 
for NB-IoT operations in In-Band deployment

This way, the available spectrum is efficiently 
used by sharing of the PRBs. It also creates scope for continuous scalability by allowing more 
and more NB-IoT user equipment within the existing LTE range. 
Guard-band Deployment
For Guard-band deployment,
 
the bandwidth reserved in LTE for guard bands is used. 
Typically required channel bandwidth is around 200kHz.
Standalone Deployment 
In standalone deployment

an independently licensed bandwidth in the GSM network is 
allocated for the NB-IoT connection. The standalone deployment is usually performed using 
existing idle spectrum resources. These unused resources are usually acquired by reframing the 
other resource access technologies or mobile operator’s spectrum fragments with non-standard 
bandwidths [18]. 
2.2.3
 
NB-IoT Applications 
LPWAN and hence NB-IoT has been envisaged with the intention of catering to the 
market of devices and use cases that do not have big chunk of data to transmit, only need to 
transceive sporadically, have serious constraints on power and network and require to transmit 
data over the long range.
Typical NB-IoT applications or use cases are: 

Smart Metering 
Domestic power, gas and power meters, water meters can be replaced with inexpensive, 
programmable digital meters that sporadically send the recorded readings to the servers of the 


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companies that provide them. Features of NB-IoT can satisfy these requirements of the smart 
metering.

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