LTE Frequency Bands and Spectrum
- a summary and tables of the frequency band spectrum allocations for 3G LTE - TDD and FDD.
This 3G LTE tutorial is split into several pages each of which addresses a different aspect of 3GPP LTE technology and operation:
[1] 3G LTE Tutorial Introduction
[2] LTE OFDM and OFDMA / SC-FDMA
[3] LTE MIMO
[4] LTE TDD and FDD duplex schemes
[5] LTE frame and subframe structure
[6] LTE physical logical and transport channels
[7] LTE frequency bands and spectrum
[8] LTE SAE system architecture evolution
[9] Voice over LTE, VoLTE
There is a growing number of LTE frequency bands that are being designated as possibilities for use with LTE.
LTE FDD frequency band allocations
There is a large number of allocations or radio spectrum that has been reserved for FDD, frequency division duplex, LTE use.
The FDD frequency bands are paired to allow simultaneous transmission on two frequencies. The bands also have a sufficient separation to enable the transmitted signals not to unduly impair the receiver performance. If the signals are too close then the receiver may be "blocked" and the sensitivity impaired. The separation must be sufficient to enable the roll-off of the antenna filtering to give sufficient attenuation of the transmitted signal within the receive band.
| Band Number | Band Description / Name | Uplink (MHz) |
Downlink (MHz) |
|---|---|---|---|
| 1 | IMT core | 1920 - 1980 | 2110 - 2170 |
| 2 | PCS 1900 | 1850 - 1910 | 1930 - 1990 |
| 3 | GSM 1800 | 1710 - 1785 | 1805 -1880 |
| 4 | AWS (US) | 1710 - 1755 | 2110 - 2155 |
| 5 | 850 (US) | 824 - 849 | 869 - 894 |
| 6 | 850 (Japan) | 830 - 840 | 875 - 885 |
| 7 | IMT Extension | 2500 - 2570 | 2620 - 2690 |
| 8 | GSM 900 | 880 - 915 | 925 - 960 |
| 9 | 1700 (Japan) | 1749.9 - 1784.9 | 1844.9 - 1879.9 |
| 10 | 3G Americas | 1710 - 1770 | 2110 - 2170 |
LTE TDD frequency band allocations
With the interest in TDD LTE, there are several unpaired frequency allocations that are being prepared for LTR TDD use. The TDD LTE allocations are unpaired because the uplink and downlink share the same frequency, being time multiplexed.
| Band Designation | Band Name | Allocation (MHz) |
|---|---|---|
| a | TDD 1900 | 1900 - 1920 |
| b | TDD 2.0 | 2010 - 2025 |
| c | PCS centre gap | 1910 - 1930 |
| d | IMT extension centre gap | 2570 - 2620 |
Further pages from this tutorial
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[9]
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