Tag: LTE
PLMN Selection in LTE (Idle Mode Action)
UEs can be either in RRC_CONNECTED or RRC_IDLE mode. UEs will be declared as RRC_IDLE if there is no RRC connection between the UEs and the eNodeB and RRC_Connected when […]
Control and User Plane Separation for Next Generation EPC
CUPS means Control and User Plane Separation of EPC nodes and provides the architecture enhancements for the separation of functionality in the Evolved Packet Core’s SGW, PGW and TDF. This enables flexible network […]
LTE Reference Sensitivity Calculation, How it depends on SNR, why throughput decrease at the Cell edge?
The LTE reference sensitivity power level is the minimum mean power received at the antenna connector at which a throughput shall be ≥ 95% of the maximum throughput for a […]
eMBMS Devices List, Model, Chipset and Middleware Details
Global Mobile Supplier Association (GSA) has provided a list of LTE devices which is capable to support eMBMS feature. The eMBMS device are not some special device, these are similar […]
NB-IOT – 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 […]
What is LTE-LAA and its co-existence with other technologies
Licensed-assisted access (LAA) is a 3GPP enhancement of Long-Term Evolution (LTE) to allow cellular network operators to offload some of their data traffic by accessing the unlicensed 5 GHz frequency […]
Citizens Broadband Radio Service, Frequency Spectrum, Operation Modes
Citizens Broadband Radio Service (CBRS) is a 150 MHz wide broadcast band in 3.5 GHz band starting from 3550 MHz to 3700 MHz. The Federal Communications Commission (FCC) regulates interstate and international communications by radio, […]
Maximum Coupling Loss (MCL) and Maximum Path Loss (MPL)
Maximum Coupling Loss has been chosen by 3GPP as the metric to evaluate coverage of a radio access technology. In theory, it can be defined as the maximum loss in […]
Amplifier Efficiency Concept, How Envelope Tracking (ET) helps better efficiency to Power Amplifiers?
Envelope tracking (ET) describes an approach to radio frequency (RF) amplifier design in which the power supply voltage applied to the RF power amplifier is continuously adjusted to ensure that the amplifier is operating at peak efficiency for […]
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 the list of the supported bands: 1, 2, 3, 5, […]