5 Frequency bands and channel arrangement

25.1163GPPRelease 17TSUTRA repeater radio transmission and reception (LCR TDD)

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

5.1 General

The information presented in this section is based on the chip rates of 1.28 Mcps TDD.

NOTE: Other chip rates may be considered in future releases.

5.2 Frequency bands

UTRA/TDD is designed to operate in the following bands;

a) 1900 – 1920 MHz: Uplink and downlink transmission

2010 – 2025 MHz Uplink and downlink transmission

b) 1850 – 1910 MHz Uplink and downlink transmission

1930 – 1990 MHz Uplink and downlink transmission

c) 1910 – 1930 MHz Uplink and downlink transmission

d) 2570 – 2620 MHz Uplink and downlink transmission

e) 2300 – 2400 MHz Uplink and downlink transmission

f) 1880 – 1920 MHz: Uplink and downlink transmission

Note: Deployment in existing and other frequency bands is not precluded.

The co-existence of TDD and FDD in the same bands is still under study in WG4.

5.3 TX-RX frequency separation

No TX-RX frequency separation is required as Time Division Duplex (TDD) is employed. Each subframe consists of 7 main timeslots where all main timeslots (at least the first one) before the single switching point are allocated DL and all main timeslots (at least the last one) after the single switching point are allocated UL.

5.4 Channel arrangement

5.4.1 Channel spacing

The channel spacing is 1.6MHz, but this can be adjusted to optimise performance in a particular deployment scenario.

5.4.2 Channel raster

The channel raster is 200 kHz for all bands, which means that the carrier frequency must be a multiple of 200 kHz.

5.4.3 Channel number

The carrier frequency is designated by the UTRA absolute radio frequency channel number (UARFCN). The value of the UARFCN in the IMT2000 band is defined in the general case as follows:

N_t= 5  F 0.0  F 3276.6 MHz

where F is the carrier frequency in MHz.