4G

Narrow Band-Physical Broadcast Channel (NPBCH)

January 31, 2019

NPBCH stands for narrowband physical broadcast channel similar to PBCH in LTE Technology. The Narrow Band-Physical Broadcast Channel (NPBCH) is used to deliver the NB-IoT Master Information Block (MIB), which provides essential information for the NB-IoT UE to operate in the NB-IoT network. Narrow Band-Physical Broadcast Channel (NPBCH) uses a 640 ms TTI, but within […]

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NB-IoT Frequency Bands (As per 3GPP Rel. 13, 14 and 15)

January 31, 2019

3GPP has defined a set of frequency bands for which NB-IoT can be used. 3GPP TS 36.101  from Release 13 provides the list of the supported bands: 1, 2, 3, 5, 8, 12, 13, 17, 18, 19, 20, 26, 28, 66 and Release 14 added the bands: 11, 25, 31 and 70. Later, 3GPP Release 15 […]

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5G and 4G Comparison

October 31, 2018

5G and 4G Comparison A Short comparison of 5G and 4G technologies is given is table below Technology Data Rates Latency Mobility Support Spectrum Efficiency Users Density Energy Efficiency 5G (NR) Avg 100 Mb/s Peak 20 Gb/s  ~ 1 ms > 500 Km/h x3 Better DL- 30 bits/Hz UL- 15bits/Hz  1000K/square Km x100 Better 4G […]

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