Numerology – Subcarrier Spacing

• As we know in LTE we have only one type of subcarrier spacing i.e. 15Khz.
• NR support multiple type of subcarrier spacing.
• NR supports a flexible OFDM numerology with subcarrier spacings ranges from 15 kHz to 240 kHz with a proportional change in cyclic prefix duration.

Supported Channel mapping with numerology

• It’s Not like that every numerology can be used for every physical channel.
• Numerologies has been specified as per certain type of physical channel.

Numerology, Radio Frame Structure and Slot Length

• Slot Length changes depending on numerology.
• Increase in subcarrier spacing will decrease slot length.

Radio Frame Structure

Categories: techlteworld

Tags: 5G, ERICSSON, FRAME STRUCTURE, LTE, NOKIA, NR, NUMEROLOGY, RADIO FRAME, Telecom