9 Transmission and reception

3GPP45.001General descriptionGSM/EDGE Physical layer on the radio pathRelease 17TS

The modulated stream is then transmitted on a radio frequency carrier. The frequency bands and channel arrangements are the following:

i) T-GSM 380 band:

– for T-GSM 380, the system is required to operate in the following band:

– 380,2 MHz to 389,8 MHz: mobile transmit, base receive;

– 390,2 MHz to 399,8 MHz base transmit, mobile receive.

ii) T-GSM 410 band:

– for T-GSM 410, the system is required to operate in the following band:

– 410,2 MHz to 419,8 MHz: mobile transmit, base receive;

– 420,2 MHz to 429,8 MHz base transmit, mobile receive.

iii) GSM 450 Band;

For GSM 450, the system is required to operate in the following frequency band:

450,4 – 457,6 MHz: mobile transmit, base receive;

460,4 – 467,6 MHz: base transmit, mobile receive;

iv) GSM 480 Band;

For GSM 480, the system is required to operate in the following frequency band:

478,8 – 486 MHz: mobile transmit, base receive;

488,8 – 496 MHz: base transmit, mobile receive;

v) GSM 710 Band;

For GSM 710, the system is required to operate in the following frequency band:

728 – 746 MHz: base transmit, mobile receive;

698 – 716 MHz: mobile transmit, base receive;

vi) GSM 750 Band;

For GSM 750, the system is required to operate in the following frequency band:

777 – 793 MHz: mobile transmit, base receive;

747 – 763 MHz: base transmit, mobile receive;

vii) T-GSM 810 Band;

For T-GSM 810, the system is required to operate in the following band:

806 – 821 MHz: mobile transmit, base receive

851 – 866 MHz: base transmit, mobile receive

viii) GSM 850 Band;

For 850, the system is required to operate in the following band:

824 – 849 MHz: mobile transmit, base receive

869 – 894 MHz: base transmit, mobile receive

ix) Standard or primary GSM 900 Band, P‑GSM;

For Standard GSM 900 Band, the system is required to operate in the following frequency band:

890 ‑ 915 MHz: mobile transmit, base receive

935 ‑ 960 MHz: base transmit, mobile receive

x) Extended GSM 900 Band, E‑GSM (includes Standard GSM 900 band);

For Extended GSM 900 Band, the system is required to operate in the following frequency band:

880 ‑ 915 MHz: mobile transmit, base receive

925 ‑ 960 MHz: base transmit, mobile receive

xi) Railways GSM 900 Band, R‑GSM (includes Standard and Extended GSM 900 Band);

For Railways GSM 900 Band, the system is required to operate in the following frequency band:

876 ‑ 915 MHz: mobile transmit, base receive

921 ‑ 960 MHz: base transmit, mobile receive

xii) Void

xiii) DCS 1 800 Band;

For DCS 1 800, the system is required to operate in the following frequency band:

1 710 ‑ 1 785 MHz: mobile transmit, base receive

1 805 ‑ 1 880 MHz: base transmit, mobile receive

xiv) PCS 1900 Band;

For PCS 1900, the system is required to operate in the following frequency band;

1850-1910 MHz: mobile transmit, base receive

1930-1990 MHz: base transmit, mobile receive

xv) Extended Railways GSM 900 Band, ER‑GSM (includes Railways GSM 900 Band);

For Extended Railways GSM 900 Band, the system is required to operate in the following frequency band:

873 ‑ 915 MHz: mobile transmit, base receive

918 ‑ 960 MHz: base transmit, mobile receive

NOTE 1: The term GSM 400 is used for any GSM system, which operates in any 400 MHz band including T-GSM 380.

NOTE 2: The term GSM 700 is used for any GSM system, which operates in any 700 MHz band.

NOTE 3: The term GSM 850 is used for any GSM system, which operates in any 850 MHz band but excluding T-GSM 810.

NOTE 4: The term GSM 900 is used for any GSM system, which operates in the frequency band 876-915 MHz in the UL and 921-960 MHz in the DL.

NOTE 5: The BTS may cover a complete band, or the BTS capabilities may be restricted to a subset only, depending on the operator needs.

NOTE 6: The term ER-GSM 900 is used for the GSM system, which in addition to GSM 900 operates in the frequency band 873-876 MHz in the UL and 918-921 MHz in the DL.

Operators may implement networks on a combination of the frequency bands above to support multi band mobile stations.

The RF channel spacing is 200 kHz, allowing for 41 (T-GSM 380), 41 (T-GSM 410), 35 (GSM 450), 35 (GSM 480), 89 (GSM 710), 74 (GSM 750), 74 (T-GSM 810), 124 (GSM 850), 209 (ER-GSM 900), 194 (GSM 900), 374 (DCS 1 800) and 299 (PCS 1900) radio frequency channels, thus leaving a guard band of 200 kHz at each end of the sub-bands.

The specific RF channels, together with the requirements on the transmitter and the receiver will be found in 3GPP TS 45.005 and in 3GPP TS 45.056 for the CTS-FP.

In order to allow for low power consumption for different categories of mobiles (e.g. vehicle mounted, hand‑held, ..), different power classes have been defined. For GSM 400, GSM 700, T-GSM 810 and ER-GSM 900, there are four power classes with the maximum power class having 8 W peak output power (ca 1 W mean output power) and the minimum having 0,8 W peak output power. For GSM 850 and GSM 900 there are five power classes with the maximum power class having 8 W peak output power (ca 1 W mean output power) and the minimum having 0,2 W peak output power. For DCS 1 800 there are four power classes of 4 W peak output power, 1 W peak output power (ca 0,125 W mean), 0,25 W peak output power and 0,16 W peak output power. For PCS 1900 there are four power classes of 2 watts, 1 watt, 0,25 watt and 0,16 W peak output power.

Multi band mobile stations may have any combinations of the allowed power classes for each of the bands supported.

The power classes are specified in 3GPP TS 45.005 and in 3GPP TS 45.056 for CTS-FP.

The requirements on the overall transmission quality together with the measurement conditions are also in 3GPP TS 45.005 and in 3GPP TS 45.056 for CTS-FP.