In OFDM and OFDMA PHY layers, the DC subcarrier is the subcarrier whose frequency is equal to the RF centre frequency of the transmitting station . It corresponds to frequency zero (Direct Current) if the FFT signal is not modulated.
Read moreWhat is subcarrier frequency?
A subcarrier is a secondary modulated signal frequency modulated into the main frequency (the carrier) to provide an additional channel of transmission . It allows for a single transmission to carry more than one separate signal.
Read moreWhy are there different subcarrier spacing in 5G?
Wider subcarrier spacing would provide better resistance to such increased Doppler shifts at higher frequency bands . Furthermore, 5G NR provides a flexible solution to support various applications by choosing an appropriate configuration. For example, when higher Δf is used, it results in a shorter slot duration.
Read moreWhat is subcarrier bandwidth in LTE?
Each subcarrier is able to carry data at a maximum rate of 15 ksps (kilosymbols per second) . This gives a 20 MHz bandwidth system a raw symbol rate of 18 Msps. In turn this is able to provide a raw data rate of 108 Mbps as each symbol using 64QAM is able to represent six bits.
Read moreWhat is the difference between LTE and NR?
5G NR Differences from LTE LTE has a packet-switched architecture that supports a wide range of data applications . Voice is also supported as voice over LTE (VoLTE) or using fallback mechanisms to 3G and circuit-switched technologies. The 5G NR specification embraces a flexible air interface.
Read moreIs LTE the best network?
LTE Advanced uses carrier aggregation to speed mobile data over the network more quickly than ever before, providing customers with 50 percent faster peak speeds . Today, more than 98 percent of the U.S. population has access to 4G LTE and 90 percent of Verizon Wireless’ data traffic is carried over the network.
Read moreIs there anything better than LTE?
5G continues the evolution of wireless after 1G, 2G, 3G, and 4G. With 5G, networks can move vast amounts of data more efficiently than with 4G LTE . That means: Faster speeds to download movies and shows or video chat on the go.
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