As 5G NR operating bands to an already overcrowded and congested spectrum increases the risk for interference with other wireless communications.  5G devices will need to operate in adjacent cellular bands, and sometimes within the same spectrum as other existing wireless communications systems, unlicensed spectrum, and satellite and radar applications. 5G COEXISTENCE IN UNLICENSED SPECTRUM […]

It is clear that 5G services without the added artificial intelligence wouldn’t ease the creation of a business case for 5G. For instance, in the last “MWC2019“, South Korea’s KT showed their 5G V2X connected car service that allows the driver in case of medical emergency to automatically control the connected vehicle remotely. The company […]

Simply, like LTE, There’s BCCH channel at 5G NR and its function is transmission of system information from the network to all devices in a cell. Before accessing the system, a device needs to get the system data to figure out how the system is configured and to know how to behave well within a cell. […]

The maximum FFT size in NR is 4096 compared to a maximum FFT size of 2048 in LTE. Furthermore, NR has a higher spectral utilization than LTE (increased from 90 percent to above 95 percent), and a higher relative subcarrier occupancy for the same FFT size. For example, in LTE for an FFT size of 2048, the maximum […]

In mmWave range, 26 GHz and 28 GHz have emerged as two of the most important bands. They offer the widest harmonisation with minimized user equipment complication. The possibility of more larger amounts of spectrum in the mmwave bands will allow ultra-high speed mobile services.   Source: GSMA 

Many researchers from industry and academia are actively working on addressing the requirements for a robust and reliable 5G implementation. The following key features have played a defining role in the 5G NR physical layer: Supporting a wide range of operation bands, a variety of channel bandwidths within those bands, and multiple deployment options. Serving […]

Originally developed by Qualcomm, LTE-U is suggested for the usage of the 4G LTE in unlicensed spectrum. For instance, the 5 GHz band used by 802.11a compliant Wi-Fi equipment. It will serve as an alternative to carrier-owned Wi-Fi hotspots. The goal was to easily use the lower and upper portion of the unlicensed 5 GHz […]

It was only a few years ago that the industry was debating the feasibility of using the millimeter wave spectrum for mobile communications and framing the challenges that lay ahead for the radio designer. However using mmwave and advanced technology like Massive MIMO and Beam-forming, mmWave can compensate the path loss comparing to Sub 6 […]

Simply, In 5G the target is increasing the transmission bandwidth using higher frequencies than the exciting ones.However as radio propagation losses increases in high frequency bands, this losses must be compensated for by deceptively controlling antenna directive using massive element antennas — > Massive MIMO.  

5G NR is a recent air interface developed for 5G. An air interface is the radio frequency portion of the circuit between the mobile device and the active base station. The 5G New Radio has been developed to provide a significant enhancements in areas like flexibility, scalability and efficiency, both in terms of power usage […]

Non-orthogonal multiple access (NOMA) has become an important principle for the design of radio access techniques for the fifth generation (5G) wireless networks. NOMA Technique is based on the key concept, where more than one user is served in each orthogonal resource block. So now for your Question: why NOMA is suitable for 5G ? […]