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Kamis, 08 Mei 2008

3G Frequencies

3G Frequencies


According to "WARC-92 frequencies for IMT-2000" resolution: "The bands 1885-2025 MHz and 2110-2200 MHz are intended for use, on a worldwide basis, by administrations wishing to implement International Mobile Telecommunications-2000 (IMT-2000). Such use does not preclude the use of these bands by other services to which they are allocated."

Here is the summary of UMTS frequencies:

1920-1980 and 2110-2170 MHz Frequency Division Duplex (FDD, W-CDMA) Paired uplink and downlink, channel spacing is 5 MHz and raster is 200 kHz. An Operator needs 3 - 4 channels (2x15 MHz or 2x20 MHz) to be able to build a high-speed, high-capacity network.
1900-1920 and 2010-2025 MHz Time Division Duplex (TDD, TD/CDMA) Unpaired, channel spacing is 5 MHz and raster is 200 kHz. Tx and Rx are not separated in frequency.
1980-2010 and 2170-2200 MHz Satellite uplink and downlink.

Carrier frequencies are designated by a UTRA Absolute Radio Frequency Channel Number (UARFCN). The general formula relating frequency to UARFN is:

UARFCN = 5 * (frequency in MHz)
WRC-2000 in Istanbul

· Identified the bands 1710 - 1885 and 2500 - 2690 MHz for IMT-2000

· Identified those parts of the band 806 - 960 MHz which are allocated to the mobile service on a primary basis

· Admitted that High Altitude Platform Stations (HAPS) may use the WARC-92 frequency bands for terrestrial IMT-2000 on restrictive conditions

· Decided that the frequency bands 1525 - 1544, 1545 - 1559, 1610 - 1626.5, 1626.5 - 1645.5, 1646.5 - 1660.5 and 2483.5 - 2500 MHz may be used for the satellite component of IMT-2000, as well as the bands 2500 - 2520 MHz and 2670- 2690 MHz, depending on market developments

· Decided that "the bands, or portions of the bands, 1710 - 1885 MHz and 2500 - 2690 MHz, are identified for use by administrations wishing to implement International Mobile Telecommunications-2000 (IMT-2000). This identification does not preclude the use of these bands by any application of the services to which they are allocated and does not establish priority in the Radio Regulations".
From the TS 25.101 Specification:
UTRA Absolute Radio Frequency Channel Number

3GPP TS 25.101 Band/UARFCN Support in the Test Set

Band

DL to UL Frequency Separation (MHz)

3GPP TS 25.101
Downlink
UARFCN Range

3GPP TS 25.101
Uplink
UARFCN Range

Supported in the Test Set?

I
(IMT-2000)

190

10562 - 10838

9612 - 9888

Yes

II
(U.S. PCS)

80

9662 - 9938

9262 - 9538

Yes

412, 437, 462, 487, 512, 537, 562, 587, 612, 637, 662, 687

12, 37, 62, 87, 112, 137, 162, 187, 212, 237, 262, 287

Yes

III
(DCS/PCS)

95

1162 - 1513

937 - 1288

Yes

IV

400

1537 - 1738

1312 - 1513

Yes

1887, 1912, 1937, 1962, 1987, 2012, 2037, 2062, 2087

1662, 1687, 1712, 1737, 1762, 1787, 1812, 1837, 1862

V
(US Cellular)

45

4357 - 4458

4132 - 4233

Yes #

1007, 1012, 1032, 1037, 1062, 1087

782, 787, 807, 812, 837, 862

VI
(Japan 800)

45

4387 - 4413

4162 - 4188

Yes +

1037, 1062

812, 837

VII

120

2237 - 2563

2012 - 2338

No

2587, 2612, 2637, 2662, 2687, 2712, 2737, 2762, 2787, 2812, 2837, 2862, 2887, 2912

2362, 2387, 2412, 2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612, 2637, 2662, 2687

VIII

45

2937 - 3088

2712 - 2863

Yes

IX

95

9237 - 9387

8762 - 8912

Yes*


Uplink Frequency and UARFCN, and Uplink Channel Range

Band

TS 25.101
DL to UL Frequency Separation (MHz)

TS 25.101
Center Frequency Range (MHz)

TS 25.101
UARFCN Equation

TS 25.101
UARFCN Range

Applicable Test Set "Uplink Channel" Range

I
(IMT-2000)

190

1922.4 - 1977.6,
increment = 0.2

5 * (center freq in MHz)

9612 - 9888

9612 - 9888

II
(U.S. PCS)

80

1852.4 - 1907.6,
increment = 0.2

5 * (center freq in MHz)

9262 - 9538

9262 - 9538

1852.5 - 1907.5,
increment = 5

5 * ((center freq in MHz) - 1850.1 MHz)

12, 37, 62, 87, 112, 137, 162, 187, 212, 237, 262, 287

12, 37, 62, 87, 112, 137, 162, 187, 212, 237, 262, 287

III
(DCS/PCS)

95

1712.4 - 1782.6,
increment = 0.2

5 * ((center freq in MHz) - 1525 MHz)

937 - 1288

937 - 1288

IV

400

1712.4 - 1752.6,
increment = 0.2

5 * ((center freq in MHz) - 1450 MHz)

1312 - 1513

1312 - 1513

1712.5 - 1752.5,
increment = 5

5 * ((center freq in MHz) - 1380.1 MHz)

1662, 1687, 1712, 1737, 1762, 1787, 1812, 1837, 1862

1662, 1687, 1712, 1737, 1762, 1787, 1812, 1837, 1862

V
(US Cellular)

45

826.4 - 846.6,
increment = 0.2

5 * (center freq in MHz)

4132 - 4233

4132 - 4233

826.5, 827.5, 831.5, 832.5, 837.5, 842.5

5* ((center freq in MHz) - 670.1 MHz)

782, 787, 807, 812, 837, 862

782, 787, 807, 812, 837, 862


VI
(Japan
800)

45

832.4 - 837.6,
increment = 0.2

5 * (center freq in MHz)

4162 - 4188

4132 - 4233

832.5, 837.5

5 * ((center freq in MHz) - 670.1 MHz)

812, 837

782, 787, 807, 812, 837, 862

VII

120

2502.4 - 2567.6, increment = 0.2

5 * ((center freq in MHz) - 2100 MHz)

2012 - 2338

Not supported

2502.5 - 2567.5, increment = 5

5 * ((center freq in MHz) - 2030.1 MHz)

2362, 2387, 2412, 2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612, 2637, 2662, 2687

Not supported

VIII

45

882.4 - 912.6

5 * ((center freq in MHz) - 340 MHz)

2712 - 2863

2712 - 2863

IX

95

1752.4 - 1782.4, increment = 0.2

5 * (center freq in MHz)

8762 - 8912

8762 - 8912

Sumber : Telkomsel

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