NB-IoT Frequency Bands (As per 3GPP Rel. 13, 14 and 15)
3GPP has defined a set of frequency bands for which NB-IoT can be used. 3GPP TS 36.101 from Release 13 provides...
Narrow Band IoT Frame Structure
NB- IoT frame structure is illustrated in the below picture. At the highest level, it starts with a hyperframe cycle...
Narrow Band Synchronization Signals (NPSS and NSSS)
The NPSS and NSSS helps UE to synchronize downlink to an NB-IoT cell. These are transmitted in certain subframes based...
Narrow Band-Physical Broadcast Channel (NPBCH)
NPBCH stands for narrow band physical broadcast channel similar to PBCH in LTE Technology. The 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. NPBCH uses a 640 ms TTI, but within the TTI only subframe 0 is used in every radio frame. NPBCH is transmitted in entire subframe zero of a radio frame (except initial 3 OFDM symbols). Subframe Location: 0 Subframe periodicity: 10 ms Basic TTI 640 ms NPBCH Channel Characteristics. NPBCH...
Narrow Band-IOT UE Attach Call Flow Messaging
When a NB-IOT UE accesses a cell, it follows the same principle as for LTE: It first searches a cell...
Cat. NB1 and Cat. NB2 Devices Comparison
Narrow Band IoT specifications was first introduced in 3GPP release 13 and then further enhanced in 3GPP release 14 with some essential features. Release 13 NB-IoT device category is referred as Cat NB1 or Cat N1 and Release 14 devices are referred as Cat NB2 or Cat N2. Parameter Cat. NB1 Cat. NB2 3GPP Release Specification Release 13 Release 14 Operation Mode FDD FDD No. of Rx Antenna 1 1 Tx Power Class 20, 23 dBm 14, 20, 23 dBm Maximum Channel Bandwidth 180 KHz 180 KHz Highest Modulation for...
IoT Device Battery Life 10 Years !!! How is it possible? Battery life Calculation for NB-IoT Device
Energy is the most scarce resource for an electronic device and when someone designing it, he needs to optimize its operation...
Narrow Band (NB) -IoT Modem Chip Vendors
There are a number of wireless technologies available for the Internet of things. These are mainly divided into two categories:...
Samsung’s Exynos i S111 a New NB-IoT Modem
Samsung, the world leader in semiconductor and telecommunication has announced its new narrowband IoT (NB-IoT) chipset modem named as Exynos...
Citizens Broadband Radio Service Device(CBSD), Its Types and OEMs
Citizens Broadband Radio Service Device(CBSD): As per FCC, an eNodeB which is capable to support CBRS band is referred as...
