Ofdm

What is the mixed numerology in OFDM

What is the mixed numerology in OFDM
  1. What is OFDM numerology?
  2. What is numerology in networking?
  3. What is scalable OFDM numerology?
  4. What does numerology mean in 5G?

What is OFDM numerology?

OFDM numerologies define the subcarrier spacing and the cyclic prefix value, and associated transmission parameters, such as slot length. OFDM numerologies enable 5G to support different frequency bands and diverse services cost-effectively and efficiently.

What is numerology in networking?

Going back to the title – what is the actual meaning of Numerology? It refers to the formula for sub-carrier spacing in NR: Δf=15 kHz * 2n, where n is the actual number referred to in the word numerologies.

What is scalable OFDM numerology?

The waveform is scalable in the sense that the sub-carrier spacing of OFDM can be chosen according to 15  2n kHz, where n is an integer and 15 kHz is the subcarrier spac- ing used in Long Term Evolution (LTE).

What does numerology mean in 5G?

Numerology in 5G/NR refers to Sub Carrier Spacing (SCS). As of Release 17, there are 7 types of numberology (SCS 15, 30, 60, 120, 240, 480, 960 Khz). Even though Numerology is one of the most widely discussed item at 3GPP RAN1 meeting before NR Technical Specification is finalized, it sounds very vague to me.

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