NB1 vs. NB2 Complete Comparison Table and Overview
The 3GPP Release 14 specification enhances the NB-IoT protocol and introduces a new device category, NB2. Here is a complete NB1 vs. NB2 comparison table and a brief overview of the new NB-IoT protocol features in R14.
What are LTE Cat NB1 and NB2?
LTE Cat NB1 refers to IoT devices based on the NB-IoT protocol standardized in the 3GPP Release 13 specification. It is a wireless cellular low-power wide-area connectivity protocol for IoT massive machine-type communications.
LTE Cat NB2 refers to devices which are based on the enhanced NB-IoT protocol as standardized in the 3GPP Release 14.
NB1 vs. NB2 Comparison Table
Here is a comprehensive comparison table to see the differences between the NB-IoT 3GPP R13 and R14 specifications, and NB1 vs. NB2 devices.
Main Enhancements in LTE Cat NB2
Here is a short introduction on how the 3GPP R14 specification enhances the NB-IoT protocol for NB2:
The 3GPP Release 14 introduces OTDOA and E-CID positioning methods into NB2 for higher location accuracy.
MULTICAST IN NB2
The NB2 devices contain Multicast transmission mode, which the NB1 device does not have.
ENHANCED NB2 MOBILITY
NB2 devices provide better mobility – Reconnection is now supported also in the device connected mode, as opposed to idle mode only in NB1.
LTE CAT NB2 PEAK DATA RATES
The NB-IoT 3GPP Release 14 specification introduces higher data rates – NB2 devices can maximum data speeds of ~127 kbps uplink and ~159 kbps uplink.
NB-IOT MULTI-CARRIER OPERATION
NB2 supports a multi-carrier mode with up to 15 non-anchor carriers, which can support up to 1,000,000 connected NB-IoT devices per square kilometer.
NB2 FREQUENCY BANDS
Five new FDD frequency bands are introduced for NB-IoT: 11, 21, 25, 31, and 70.
NEW NB2 DEVICE POWER CLASS
3GPP R14 enhances NB2 devices with a new 14 dBm power class to allow the use of smaller batteries and small form factors.
|IoT Protocols Overview||NB-IoT 3GPP Release 14||NB-IOT CHIPSET list|
|LTE Cat 1||LTE Cat M1||EC-GSM-IoT|
|LoRa||Google Thread||Bluetooth LE|
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