4 Transmitter characteristics

05.053GPPRadio transmission and receptionTS

Throughout this clause, unless otherwise stated, requirements are given in terms of power levels at the antenna connector of the equipment. For equipment with integral antenna only, a reference antenna with 0 dBi gain shall be assumed.

For GMSK modulation, the term output power refers to the measure of the power when averaged over the useful part of the burst (see annex B).

For 8-PSK modulation, the term output power refers to a measure that, with sufficient accuracy, is equivalent to the long term average of the power when taken over the useful part of the burst for random data.

The term peak hold refers to a measurement where the maximum is taken over a sufficient time that the level would not significantly increase if the holding time were longer.

4.1 Output power

4.1.1 Mobile Station

The MS maximum output power and lowest power control level shall be, according to its class, as defined in the following tables (see also 3GPP TS 02.06).

For GMSK modulation

Power

GSM 400 & GSM 900 & GSM 850

DCS 1 800

PCS 1 900

Tolerance (dB)

class

Nominal Maximum output

Nominal Maximum output

Nominal Maximum output

for conditions

power

power

power

normal

extreme

1

‑ ‑ ‑ ‑ ‑ ‑

1 W (30 dBm)

1 W (30 dBm)

±2

±2,5

2

8 W (39 dBm)

0,25 W (24 dBm)

0,25 W (24 dBm)

±2

±2,5

3

5 W (37 dBm)

4 W (36 dBm)

2 W (33 dBm)

±2

±2,5

4

2 W (33 dBm)

±2

±2,5

5

0,8 W (29 dBm)

±2

±2,5

For 8-PSK modulation

Power

GSM 400 and GSM 900 & GSM 850

GSM 400 and GSM 900 & GSM 850

DCS 1 800

PCS 1 900

DCS 1 800 & PCS 1 900

class

Nominal Maximum output

Tolerance (dB)

for conditions

Nominal Maximum output

Nominal Maximum output

Tolerance (dB)

for conditions

Power

normal

extreme

power

power

normal

extreme

E1

33 dBm

±2

±2,5

30 dBm

30 dBm

±2

±2,5

E2

27 dBm

±3

±4

26 dBm

26 dBm

-4/+3

-4,5/+4

E3

23 dBm

3

±4

22 dBm

22 dBm

3

4

Maximum output power for 8-PSK in any one band is always equal to or less than GMSK maximum output power for the same equipment in the same band.

A multi band MS has a combination of the power class in each band of operation from the table above. Any combination may be used.

The PCS 1 900, including its actual antenna gain, shall not exceed a maximum of 2 Watts (+33 dBm) EIRP per the applicable FCC rules for wideband PCS services [FCC Part 24, Subpart E, Section 24.232]. Power Class 3 is restricted to transportable or vehicular mounted units.

For GSM 850 MS, including its actual antenna gain, shall not exceed a maximum of 7 Watts (+38,5 dBm) ERP per the applicable FCC rules for public mobile services. [FCC Part 22, Subpart H, Section 22.913]

The different power control levels needed for adaptive power control (see 3GPP TS 05.08) shall have the nominal output power as defined in the table below, starting from the power control level for the lowest nominal output power up to the power control level for the maximum nominal output power corresponding to the class of the particular MS as defined in the table above. Whenever a power control level commands the MS to use a nominal output power equal to or greater than the maximum nominal output power for the power class of the MS, the nominal output power transmitted shall be the maximum nominal output power for the MS class, and the tolerance specified for that class (see table above) shall apply.

GSM 400 and GSM 900 and GSM 850

Power control level

Nominal Output power (dBm)

Tolerance (dB) for conditions

normal

extreme

0‑2

39

±2

±2,5

3

37

±3

±4

4

35

±3

±4

5

33

±3

±4

6

31

±3

±4

7

29

±3

±4

8

27

±3

±4

9

25

±3

±4

10

23

±3

±4

11

21

±3

±4

12

19

±3

±4

13

17

±3

±4

14

15

±3

±4

15

13

±3

±4

16

11

±5

±6

17

9

±5

±6

18

7

±5

±6

19‑31

5

±5

±6

DCS 1 800

Power control level

Nominal Output power (dBm)

Tolerance (dB) for conditions

normal

extreme

29

36

±2

±2,5

30

34

±3

±4

31

32

±3

±4

0

30

±3

±4

1

28

±3

±4

2

26

±3

±4

3

24

±3

±4

4

22

±3

±4

5

20

±3

±4

6

18

±3

±4

7

16

±3

±4

8

14

±3

±4

9

12

±4

±5

10

10

±4

±5

11

8

±4

±5

12

6

±4

±5

13

4

±4

±5

14

2

±5

±6

15‑28

0

±5

±6

NOTE 1: For DCS 1 800, the power control levels 29, 30 and 31 are not used when transmitting the parameter MS_TXPWR_MAX_CCH on BCCH, for cross phase compatibility reasons. If levels greater than 30 dBm are required from the MS during a random access attempt, then these shall be decoded from parameters broadcast on the BCCH as described in 3GPP TS 05.08.

Furthermore, the difference in output power actually transmitted by the MS between two power control levels where the difference in nominal output power indicates an increase of 2 dB (taking into account the restrictions due to power class), shall be +2 ± 1,5 dB. Similarly, if the difference in output power actually transmitted by the MS between two power control levels where the difference in nominal output power indicates an decrease of 2 dB (taking into account the restrictions due to power class), shall be ‑2 ± 1,5 dB.

NOTE 2: A 2 dB nominal difference in output power can exist for non‑adjacent power control levels e.g. power control levels 18 and 22 for GSM 400 and GSM 900; power control levels 31 and 0 for class 3 DCS 1 800 and power control levels 3 and 6 for class 4 GSM 400 and GSM 900.

A change from any power control level to any power control level may be required by the base transmitter. The maximum time to execute this change is specified in 3GPP TS 05.08.

PCS 1 900

Power Control Level

Output Power (dBm)

Tolerance (dB) for conditions

Normal

Extreme

22-29

Reserved

Reserved

Reserved

30

33

2 dB

2,5 dB

31

32

2 dB

2,5 dB

0

30

3 dB1

4 dB1

1

28

3 dB

4 dB

2

26

3 dB

4 dB

3

24

3 dB1

4 dB1

4

22

3 dB

4 dB

5

20

3 dB

4 dB

6

18

3 dB

4 dB

7

16

3 dB

4 dB

8

14

3 dB

4 dB

9

12

4 dB

5 dB

10

10

4 dB

5 dB

11

8

4 dB

5 dB

12

6

4 dB

5 dB

13

4

4 dB

5 dB

14

2

5 dB

6 dB

15

0

5 dB

6 dB

16-21

Reserved

Reserved

Reserved

NOTE: Tolerance for MS Power Classes 1 and 2 is 2 dB normal and 2,5 dB extreme at Power Control Levels 0 and 3 respectively.

The output power actually transmitted by the MS at each of the power control levels shall form a monotonic sequence, and the interval between power steps shall be 2 dB 1,5 dB except for the step between power control levels 30 and 31 where the interval is 1 dB 1 dB.

The MS transmitter may be commanded by the BTS to change from any power control level to any other power control level. The maximum time to execute this change is specified in 3GPP TS 05.08.

For CTS transmission, the nominal maximum output power of the MS shall be restricted to:

– 11 dBm (0,015 W) in GSM 900 i.e. power control level 16;

– 12 dBm (0,016 W) in DCS 1 800 i.e. power control level 9.

In order to manage mobile terminal heat dissipation resulting from transmission on multiple uplink timeslots, the mobile station shall reduce its maximum output power by the following values on a per-assignment basis:

Number of timeslots in uplink assignment

Permissible nominal reduction of maximum output power, (dB)

1

0

2

0 to 3,0

3

1,8 to 4,8

4

3,0 to 6,0

The supported maximum output power for each number of uplink timeslots shall form a monotonic sequence. The maximum reduction of maximum output power from an allocation of n uplink timeslots to an allocation of n+1 uplink timeslots shall be equal to the difference of maximum permissible nominal reduction of maximum output power for the corresponding number of timeslots, as defined in the table above.

As an exception, in case of a multislot uplink assignment, the first power control step down from the maximum output power is allowed to be in the range 0…2 dB.

In case the MS transmits on more uplink slots than assigned (e.g. due to a polling response, see 3GPP TS 04.60), the MS may reduce uplink power as above for a multislot uplink configuration but as a function of the number of active uplink slots on a TDMA frame basis.

4.1.2 Base station

For a normal BTS, the maximum output power measured at the input of the BSS Tx combiner, shall be, according to its class, as defined in the following table.

GSM 400 & GSM 900 & GSM 850 & MXM 850

DCS 1 800 & PCS 1 900 & MXM 1900

TRX

Maximum

TRX

Maximum

power class

output power

power class

output power

1

320 ‑ (< 640) W

1

20 ‑ (< 40) W

2

160 ‑ (< 320) W

2

10 ‑ (< 20) W

3

80 ‑ (< 160) W

3

5 ‑ (< 10) W

4

40 ‑ (< 80) W

4

2,5 ‑ (< 5) W

5

20 ‑ (< 40) W

6

10 ‑ (< 20) W

7

5 ‑ (< 10) W

8

2,5 ‑ (< 5) W

For a micro‑BTS or a pico-BTS, the maximum output power per carrier measured at the antenna connector after all stages of combining shall be, according to its class, defined in the following table.

GSM 900 & GSM 850 & MXM 850 micro and pico‑BTS

DCS 1 800 & PCS 1 900 & MXM 1900 micro and pico‑BTS

TRX power class

Maximum output power

TRX power class

Maximum output power

Micro

Micro

M1

(> 19) ‑ 24 dBm   

M1

(> 27) ‑ 32 dBm   

M2

(> 14) ‑ 19 dBm   

M2

(> 22) ‑ 27 dBm   

M3

(> 9) ‑ 14 dBm   

M3

(> 17) ‑ 22 dBm   

Pico

Pico

P1

(> 13) ‑ 20 dBm   

P1

(> 16) ‑ 23 dBm   

For BTS supporting 8-PSK, the manufacturer shall declare the maximum output power capability for GMSK and 8-PSK modulation. The TRX power class is defined by the highest output power capability for either modulation.

The tolerance of the actual maximum output power of the BTS for each supported modulation shall be ±2 dB under normal conditions and ±2,5 dB under extreme conditions. Settings shall be provided to allow the output power to be reduced from the maximum level for the modulation with the highest output power capability in at least six steps of nominally 2 dB with an accuracy of ±1 dB for each modulation to allow a fine adjustment of the coverage by the network operator. In addition, the actual absolute output power for each supported modulation at each static RF power step (N), with the exception below for the highest RF power level for 8-PSK, shall be 2*N dB below the absolute output power at static RF power step 0 for the modulation with the highest output power capability with a tolerance of ±3 dB under normal conditions and ±4 dB under extreme conditions. The static RF power step 0 shall be the actual output power according to the TRX power class.

As an option the BSS can utilize downlink RF power control. In addition to the static RF power steps described above, the BSS may then for each supported modulation utilize up to 15 steps of power control levels with a step size of 2 dB ± 1,5 dB, in addition the actual absolute output power for each supported modulation at each power control level (N), with the exception below for the highest power level for 8-PSK, shall be 2*N dB below the absolute output power at power control level 0 for the modulation with the highest output power capability with a tolerance of ±3 dB under normal conditions and ±4 dB under extreme conditions. The power control level 0 shall be the set output power according to the TRX power class and the six power settings defined above.

The output power for both GMSK and 8-PSK shall be nominally the same for any supported static RF power step and power control level. An exception is allowed for the maximum output power of 8-PSK, which may be lower than the GMSK output power for the same power step or power control level, i.e. the nominal size of the first step down from maximum power level for 8-PSK may be in the range 0…2 dB. The output power for the GMSK and 8-PSK at this power control level shall still be considered the same when required in 3GPP TS 05.08. The output power of 8-PSK for the second highest power step or power control level shall be the same as the GMSK power for the same power step or power control level within a tolerance of ±1 dB. The number of static RF power steps and the total number of power control steps may be different for GMSK and 8-PSK.

Network operators or manufacturers may also specify the BTS output power including any Tx combiner, according to their needs.

4.1.2.1 Additional requirements for PCS 1 900 and MXM 1900 Base stations

The BTS transmitter maximum rated output power per carrier, measured at the input of the transmitter combiner, shall be, according to its TRX power class, as defined in the table above. The base station output power may also be specified by the manufacturer or system operator at a different reference point (e.g. after transmitter combining).

The maximum radiated power from the BTS, including its antenna system, shall not exceed a maximum of 1 640 W EIRP, equivalent to 1 000 W ERP, per the applicable FCC rules for wideband PCS services [FCC part 24, subpart E, section 24.237].

4.1.2.2 Additional requirements for GSM 850 and MXM 850 Base stations

The BTS transmitter maximum rated output power per carrier, measured at the input of the transmitter combiner, shall be, according to its TRX power class, as defined in the table above. The base station output power may also be specified by the manufacturer or system operator at a different reference point (e.g. after transmitter combining).

The maximum radiated power from the BTS, including its antenna system, shall not exceed a maximum of 500 W ERP, per the applicable FCC rules for public mobile services [FCC part 22, subpart H, section 22.913].

4.2 Output RF spectrum

The specifications contained in this subclause apply to both BTS and MS, in frequency hopping as well as in non frequency hopping mode, except that beyond 1800 kHz offset from the carrier the BTS is not tested in frequency hopping mode.

Due to the bursty nature of the signal, the output RF spectrum results from two effects:

‑ the modulation process;

‑ the power ramping up and down (switching transients).

The two effects are specified separately; the measurement method used to analyse separately those two effects is specified in 3GPP TS 11.10 and 11.21. It is based on the "ringing effect" during the transients, and is a measurement in the time domain, at each point in frequency.

The limits specified thereunder are based on a 5‑pole synchronously tuned measurement filter.

Unless otherwise stated, for the BTS, only one transmitter is active for the tests of this subclause.

4.2.1 Spectrum due to the modulation and wide band noise

The output RF modulation spectrum is specified in the following tables. A mask representation of this specification is shown in annex A. This specification applies for all RF channels supported by the equipment.

The specification applies to the entire of the relevant transmit band and up to 2 MHz either side.

The specification shall be met under the following measurement conditions:

– for BTS up to 1800 kHz from the carrier and for MS in all cases:

– zero frequency scan, filter bandwidth and video bandwidth of 30 kHz up to 1800 kHz from the carrier and 100 kHz at 1800 kHz and above from the carrier, with averaging done over 50 % to 90 % of the useful part of the transmitted bursts, excluding the midamble, and then averaged over at least 200 such burst measurements. Above 1800 kHz from the carrier only measurements centred on 200 kHz multiples are taken with averaging over 50 bursts.

– for BTS at 1800 kHz and above from the carrier:

– swept measurement with filter and video bandwidth of 100 kHz, minimum sweep time of 75 ms, averaging over 200 sweeps. All slots active, frequency hopping disabled.

– when tests are done in frequency hopping mode, the averaging shall include only bursts transmitted when the hopping carrier corresponds to the nominal carrier of the measurement. The specifications then apply to the measurement results for any of the hopping frequencies.

The figures in tables a), b) and c) below, at the vertically listed power level (dBm) and at the horizontally listed frequency offset from the carrier (kHz), are then the maximum allowed level (dB) relative to a measurement in 30 kHz on the carrier.

NOTE: This approach of specification has been chosen for convenience and speed of testing. It does however require careful interpretation if there is a need to convert figures in the following tables into spectral density values, in that only part of the power of the carrier is used as the relative reference, and in addition different measurement bandwidths are applied at different offsets from the carrier. Appropriate conversion factors for this purpose are given in 3GPP TS 05.50.

For the BTS, the power level is the "actual absolute output power" defined in subclause 4.1.2. If the power level falls between two of the values in the table, the requirement shall be determined by linear interpolation.

a1) GSM 400 and GSM 900 and GSM 850 MS:

100

200

250

400

 600

 1 800

 3 000

 6 000

< 1 800

< 3 000

< 6 000

 39

+0,5

‑30

‑33

‑60

‑66

‑69

‑71

‑77

37

+0,5

‑30

‑33

‑60

‑64

‑67

‑69

‑75

35

+0,5

‑30

‑33

‑60

‑62

‑65

‑67

‑73

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑65

‑71

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑54 dB.

a2) GSM 400 and GSM 900 and GSM 850 and MXM 850 normal BTS:

100

200

250

400

 600

 1 200

 1 800

 6 000

< 1 200

< 1 800

< 6 000

 43

+0,5

‑30

‑33

‑60*

‑70

‑73

‑75

‑80

41

+0,5

‑30

‑33

‑60*

‑68

‑71

‑73

‑80

39

+0,5

‑30

‑33

‑60*

‑66

‑69

‑71

‑80

37

+0,5

‑30

‑33

‑60*

‑64

‑67

‑69

‑80

35

+0,5

‑30

‑33

‑60*

‑62

‑65

‑67

‑80

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑65

‑80

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

a3) GSM 900 and GSM 850 and MXM 850 micro-BTS:

100

200

250

400

 600

 1 200

 1 800

< 1 200

< 1 800

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑70

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

a4) GSM 900 and GSM 850 and MXM 850 pico-BTS:

100

200

250

400

 600

 1 200

 1 800

 6 000

< 1 200

< 1 800

< 6 000

 20

+0,5

‑30

‑33

‑60*

‑60

‑63

‑70

‑80

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

b1) DCS 1 800 MS:

100

200

250

400

 600

 1 800

 6 000

< 1 800

< 6 000

 36

+0,5

‑30

‑33

‑60

‑60

‑71

‑79

34

+0,5

‑30

‑33

‑60

‑60

‑69

‑77

32

+0,5

‑30

‑33

‑60

‑60

‑67

‑75

30

+0,5

‑30

‑33

‑60*

‑60

‑65

‑73

28

+0,5

‑30

‑33

‑60*

‑60

‑63

‑71

26

+0,5

‑30

‑33

‑60*

‑60

‑61

‑69

 24

+0,5

‑30

‑33

‑60*

‑60

‑59

‑67

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑54 dB.

b2) DCS 1 800 normal BTS:

100

200

250

400

 600

 1 200

 1 800

 6 000

< 1 200

< 1 800

< 6 000

 43

+0,5

‑30

‑33

‑60*

‑70

‑73

‑75

‑80

41

+0,5

‑30

‑33

‑60*

‑68

‑71

‑73

‑80

39

+0,5

‑30

‑33

‑60*

‑66

‑69

‑71

‑80

37

+0,5

‑30

‑33

‑60*

‑64

‑67

‑69

‑80

35

+0,5

‑30

‑33

‑60*

‑62

‑65

‑67

‑80

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑65

‑80

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

b3) DCS 1 800 micro-BTS:

100

200

250

400

 600

 1 200

 1 800

< 1 200

< 1 800

35

+0,5

‑30

‑33

‑60*

‑62

‑65

‑76

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑76

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is -56 dB.

b4) DCS 1 800 pico-BTS:

100

200

250

400

 600

 1 200

 1 800

 6 000

< 1 200

< 1 800

< 6 000

 23

+0,5

‑30

‑33

‑60*

‑60

‑63

‑76

‑80

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

c1) PCS 1 900 MS:

100

200

250

400

³ 600

³ 1 200

³ 1 800

³ 6 000

< 1 200

< 1 800

< 6 000

³ 33

+0,5

‑30

‑33

‑60

‑60

‑60

‑68

‑76

32

+0,5

‑30

‑33

‑60

‑60

‑60

‑67

‑75

30

+0,5

‑30

‑33

‑60*

‑60

‑60

‑65

‑73

28

+0,5

‑30

‑33

‑60*

‑60

‑60

‑63

‑71

26

+0,5

‑30

‑33

‑60*

‑60

‑60

‑61

‑69

£ 24

+0,5

‑30

‑33

‑60*

‑60

‑60

‑59

‑67

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑54 dB.

c2) PCS 1 900 & MXM 1900 normal BTS:

100

200

250

400

³ 600

³ 1 200

³ 1 800

³ 6 000

< 1 200

< 1 800

< 6 000

³ 43

+0,5

‑30

‑33

‑60*

‑70

‑73

‑75

‑80

41

+0,5

‑30

‑33

‑60*

‑68

‑71

‑73

‑80

39

+0,5

‑30

‑33

‑60*

‑66

‑69

‑71

‑80

37

+0,5

‑30

‑33

‑60*

‑64

‑67

‑69

‑80

35

+0,5

‑30

‑33

‑60*

‑62

‑65

‑67

‑80

£ 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑65

‑80

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is ‑56 dB.

c3) PCS 1 900 & MXM 1900 micro-BTS:

100

200

250

400

 600

 1 200

 1 800

< 1 200

< 1 800

35

+0,5

‑30

‑33

‑60*

‑62

‑65

‑76

 33

+0,5

‑30

‑33

‑60*

‑60

‑63

‑76

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is -56 dB.

c4) PCS 1 900 and MXM 1900 pico-BTS:

100

200

250

400

 600

 1 200

 1 800

< 1 200

< 1 800

 23

+0,5

‑30

‑33

‑60*

‑60

‑63

‑76

NOTE: * For equipment supporting 8-PSK, the requirement for 8-PSK modulation is -56 dB.

The following exceptions shall apply, using the same measurement conditions as specified above.

i) In the combined range 600 kHz to 6 MHz above and below the carrier, in up to three bands of 200 kHz width centred on a frequency which is an integer multiple of 200 kHz, exceptions at up to ‑36 dBm are allowed.

ii) Above 6 MHz offset from the carrier in up to 12 bands of 200 kHz width centred on a frequency which is an integer multiple of 200 kHz, exceptions at up to ‑36 dBm are allowed. For the BTS only one transmitter is active for this test.

Using the same measurement conditions as specified above, if a requirement in tables ax), bx) and cx) is tighter than the limit given in the following, the latter shall be applied instead.

iii) For MS:

Frequency offset from the carrier

GSM 400 & GSM 900& GSM 850

DCS 1 800 &PCS 1 900

< 600 kHz

‑36 dBm

‑36 dBm

 600 kHz, < 1 800 kHz

‑51 dBm

‑56 dBm

 1 800 kHz

‑46 dBm

‑51 dBm

iv) For normal BTS, whereby the levels given here in dB are relative to the output power of the BTS at the lowest static power level measured in 30 kHz:

Frequency offset from the carrier

GSM 400 & GSM 900 & GSM 850 & MXM 850

DCS 1 800 & PCS 1 900 & MXM 1900

< 1 800 kHz

max {‑88 dB, ‑65 dBm}

max {‑88 dB, ‑57 dBm}

 1 800 kHz

max {‑83 dB, ‑65 dBm}

max {‑83 dB, ‑57 dBm}

v) For micro and pico ‑BTS, at 1 800 kHz and above from the carrier:

Power Class

GSM 900 & GSM 850 & MXM 850

DCS 1 800 & PCS 1 900 & MXM 1900

M1

‑59 dBm

‑57 dBm

M2

‑64 dBm

‑62 dBm

M3

P1

‑69 dBm

‑68dBm

‑67 dBm

‑65dBm

4.2.2 Spectrum due to switching transients

Those effects are also measured in the time domain and the specifications assume the following measurement conditions: zero frequency scan, filter bandwidth 30 kHz, peak hold, and video bandwidth 100 kHz.

The example of a waveform due to a burst as seen in a 30 kHz filter offset from the carrier is given thereunder (figure 1).

Figure 1: Example of a time waveform due to a burst as seen in a 30 kHz filter offset
from the carrier

a) Mobile Station:

Power level

Maximum level measured

400 kHz

600 kHz

1 200 kHz

1 800 kHz

39 dBm

‑21 dBm

‑26 dBm

‑32 dBm

‑36 dBm

 37 dBm

‑23 dBm

‑26 dBm

‑32 dBm

‑36 dBm

NOTE 1: The relaxation’s for power level 39 dBm is in line with the modulated spectra and thus causes negligible additional interference to an analogue system by a GSM signal.

NOTE 2: The near‑far dynamics with this specification has been estimated to be approximately 58 dB for MS operating at a power level of 8 W or 49 dB for MS operating at a power level of 1 W. The near‑far dynamics then gradually decreases by 2 dB per power level down to 32 dB for MS operating in cells with a maximum allowed output power of 20 mW or 29 dB for MS operating at 10 mW.

NOTE 3: The possible performance degradation due to switching transient leaking into the beginning or the end of a burst, was estimated and found to be acceptable with respect to the BER due to cochannel interference (C/I).

b) Base transceiver station:

The maximum level measured, after any filters and combiners, at the indicated offset from the carrier, is:

Maximum level measured

400 kHz

600 kHz

1 200 kHz

1 800 kHz

GSM 400 & GSM 900 & GSM 850 & MXM 850 (GMSK)

‑57 dBc

‑67 dBc

‑74 dBc

‑74 dBc

GSM 400 & GSM 900 & GSM 850 & MXM 850 (8-PSK)

‑52 dBc

‑62 dBc

‑74 dBc

‑74 dBc

DCS 1 800 &

PCS 1 900 &
MXM 1900 (GMSK)

‑50 dBc

‑58 dBc

‑66 dBc

‑66 dBc

DCS 1 800 &

PCS 1 900 &
MXM 1900 (8-PSK)

‑50 dBc

‑58 dBc

‑66 dBc

‑66 dBc

Or ‑36 dBm, whichever is the higher.

dBc means relative to the output power at the BTS, measured at the same point and in a filter bandwidth of at least 300 kHz.

NOTE 4: Some of the above requirements are different from those specified in subclause 4.3.2.

4.3 Spurious emissions

The limits specified thereunder are based on a 5‑pole synchronously tuned measurement filter.

In addition to the requirements of this section, the PCS 1 900 & MXM 1900 BTS and PCS 1 900 MS shall also comply with the applicable limits for spurious emissions established by the FCC rules for wideband PCS services [14].

In addition to the requirements of this section, the GSM 850 & MXM 850 BTS and GSM 850 MS shall also comply with the applicable limits for spurious emissions established by the FCC rules for public mobile services [FCC Part 22, Subpart H].

4.3.1 Principle of the specification

In this subclause, the spurious transmissions (whether modulated or unmodulated) and the switching transients are specified together by measuring the peak power in a given bandwidth at various frequencies. The bandwidth is increased as the frequency offset between the measurement frequency and, either the carrier, or the edge of the MS or BTS transmit band, increases. The effect for spurious signals of widening the measurement bandwidth is to reduce the allowed total spurious energy per MHz. The effect for switching transients is to effectively reduce the allowed level of the switching transients (the peak level of a switching transient increases by 6 dB for each doubling of the measurement bandwidth). The conditions are specified in the following table, a peak‑hold measurement being assumed.

The measurement conditions for radiated and conducted spurious are specified separately in 3GPP TS 11.10 and 11.2x series. The frequency bands where these are actually measured may differ from one type to the other (see 3GPP TS 11.10 and 11.2x series).

a)

Band

Frequency offset

Measurement bandwidth

(offset from carrier)

relevant transmit

 1,8 MHz

30 kHz

band

 6 MHz

100 kHz

b)

Band

Frequency offset

Measurement bandwidth

100 kHz to 50 MHz

10 kHz

50 MHz to 500 MHz outside the

relevant transmit band

(offset from edge of the

relevant transmit band)

 2 MHz

30 kHz

 5 MHz

100 kHz

above 500 MHz outside the

(offset from edge of the

relevant transmit band

relevant transmit band)

 2 MHz

30 kHz

 5 MHz

100 kHz

 10 MHz

300 kHz

 20 MHz

1 MHz

 30 MHz

3 MHz

The measurement settings assumed correspond, for the resolution bandwidth to the value of the measurement bandwidth in the table, and for the video bandwidth to approximately three times this value.

NOTE: For radiated spurious emissions for MS with antenna connectors, and for all spurious emissions for MS with integral antennas, the specifications currently only apply to the frequency band 30 MHz to 4 GHz. The specification and method of measurement outside this band are under consideration.

4.3.2 Base Transceiver Station

4.3.2.1 General requirements

The power measured in the conditions specified in subclause 4.3.1a shall be no more than ‑36 dBm.

The power measured in the conditions specified in subclause 4.3.1b shall be no more than:

‑ 250 nW (‑36 dBm) in the frequency band 9 kHz to 1 GHz;

‑ 1 µW (‑30 dBm) in the frequency band 1 GHz to 12.75 GHz.

NOTE 1: For radiated spurious emissions for BTS, the specifications currently only apply to the frequency band 30 MHz to 4 GHz. The specification and method of measurement outside this band are under consideration.

In the BTS receive band, the power measured using the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz shall be no more than.

GSM 900 & GSM 850 & MXM 850 (dBm)

DCS 1800 & PCS 1900 & MXM 1900 (dBm)

Normal BTS

‑98

‑98

Micro BTS M1

‑91

‑96

Micro BTS M2

‑86

‑91

Micro BTS M3

Pico BTS P1

‑81

‑70

‑86

-80

R-GSM 900 BTS

‑89

These values assume a 30 dB coupling loss between transmitter and receiver. If BTSs of different classes are co‑sited, the coupling loss must be increased by the difference between the corresponding values from the table above.

Measures must be taken for mutual protection of receivers when BTS of different bands are co‑sited.

NOTE 2: Thus, for this case, assuming the coupling losses are as above, then the power measured in the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz should be no more than the values in the table above for the GSM 400 and GSM 900 transmitter in the band 1 710 MHz to 1 785 MHz, for GSM 400 and DCS 1 800 transmitter in the band 876 MHz to 915 MHz and for GSM 900 and DCS 1800 transmitter in the bands 450,4 MHz to 457,6 MHz and 478,8 MHz to 486,0 MHz..

In any case, the powers measured in the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz shall be no more than ‑47 dBm for the GSM 400 and GSM 900 BTS in the band 1 805 MHz to 1 880 MHz and ‑57 dBm for a GSM 400 and DCS 1 800 BTS in the band 921 MHz to 960 MHz.

Measures must be taken for mutual protection of receivers when MXM 850 and  MXM 1900 BTS, or GSM 850 and PCS 1900 BTS are co‑sited.

NOTE 3: Thus, for this case, assuming the coupling losses are as above, then the power measured in the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz should be no more than the values in the table above for the MXM 850 (or GSM 850 BTS) transmitter in the band 1 850 MHz to 1 910 MHz and for MXM 1900 (or PCS 1900 BTS) transmitter in the band 824 MHz to 849 MHz.

In any case, the powers measured in the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz shall be no more than ‑47 dBm for an MXM 850 BTS (or GSM 850 BTS) in the band 1 930 MHz to 1 990 MHz and ‑57 dBm for an MXM 1900 BTS (or PCS 1900 BTS) in the band 869 MHz to 894 MHz.

NOTE 4: In addition, to protect co-coverage systems, the powers measured in the conditions specified in subclause 4.2.1, with a filter and video bandwidth of 100 kHz should be no more than ‑57 dBm for the GSM 900 and DCS 1800 BTS in the band 460,4 MHz to 467,6 MHz and 488,8 MHz to 496,0 MHz.

4.3.2.1 Additional requirements for co-existence with 3 G

In geographic areas where GSM and UTRA networks are deployed, the power measured in the conditions specified in subclause 4.2.1, with a filter and videobandwidth of 100 kHz shall be no more than:

Band (MHz)

power (dBm)

Note

1900 – 1920

1920 – 1980

2010 – 2025

2110 – 2170

-62

-62

-62

-62

UTRA/TDD band

UTRA/FDD BS Rx band

UTRA/TDD band

UTRA/FDD UE Rx band

When GSM and UTRA BS are co-located, the power measured in the conditions specified in subclause 4.2.1, with a filter and videobandwidth of 100 kHz shall be no more than:

Band (MHz)

power (dBm)

Note

1900 – 1920

1920 – 1980

2010 – 2025

2110 – 2170

-96

-96

-96

-62

UTRA/TDD band

UTRA/FDD BS Rx band

UTRA/TDD band

UTRA/FDD UE Rx band

Note 1: The requirements in this subclause should also be applied to BTS built to a hardware specification for R98 or earlier. For a BTS built to a hardware specification for R98 or earlier, with an 8-PSK capable transceiver installed, the 8-PSK transceiver shall meet the R99 requirement.

4.3.3 Mobile Station

4.3.3.1 Mobile Station GSM 400, GSM 900 and DCS 1 800

The power measured in the conditions specified in subclause 4.3.1a, for a MS when allocated a channel, shall be no more than ‑36 dBm. For R-GSM 900 MS except small MS the corresponding limit shall be ‑42 dBm.

The power measured in the conditions specified in subclause 4.3.1b for a MS, when allocated a channel, shall be no more than (see also note in subclause 4.3.1b above):

‑ 250 nW (‑36 dBm) in the frequency band 9 kHz to 1 GHz;

‑ 1 µW (‑30 dBm) in the frequency band 1 GHz to 12,75 GHz.

The power measured in a 100 kHz bandwidth for a MS, when not allocated a channel (idle mode), shall be no more than (see also note in subclause 4.3.1 above):

  • 2 nW (‑57 dBm) in the frequency bands 9 kHz to 1 000 MHz;

‑ 20 nW (‑47 dBm) in the frequency bands 1 ‑ 12.75 GHz,

with the following exceptions:

‑ 1.25 nW (‑59 dBm) in the frequency band 880 MHz to 915 MHz;

  • 5 nW (‑53 dBm) in the frequency band 1,71 GHz to 1,785 GHz;

‑ -76 dBm in the frequency bands 1900 – 1920 MHz, 1920 – 1980 MHz, 2010 – 2025 MHz, and 2210 – 2170 MHz.

NOTE: The idle mode spurious emissions in the receive band are covered by the case for MS allocated a channel (see below).

When allocated a channel, the power emitted by the MS, when measured using the measurement conditions specified in subclause 4.2.1, but with averaging over at least 50 burst measurements, with a filter and video bandwidth of 100 kHz, for measurements centred on 200 kHz multiples shall be no more than:

‑ -67 dBm in the bands 460.4 – 467.6 MHz and 488.8 – 496 MHz for GSM400 MS only;

‑ -60 dBm in the band 921 – 925 MHz for R-GSM MS only;

‑ -67 dBm in the band 925 – 935 MHz;

‑ -79 dBm in the band 935 –960 MHz;

‑ -71 dBm in the band 1805 – 1880 MHz;

‑ -66 dBm in the bands 1900 – 1920 MHz, 1920 – 1980 MHz, 2010 – 2025 MHz, and 2110 – 2170 MHz..

As exceptions up to five measurements with a level up to ‑36 dBm are permitted in each of the bands 925 MHz to 960 MHz, 1 805 MHz to 1 880 MHz, 1900 – 1920 MHz, 1920 – 1980 MHz, 2010 – 2025 MHz, and 2110 – 2170 MHz for each ARFCN used in the measurements. For GSM 400 MS, in addition, exceptions up to three measurements with a level up to ‑36 dBm are permitted in each of the bands 460,4 MHz to 467,6 MHz and 488,8 MHz to 496 MHz for each ARFCN used in the measurements.

When hopping, this applies to each set of measurements, grouped by the hopping frequencies as described in subclause 4.2.1.

4.3.3.2 Mobile Station GSM 850 and PCS 1 900

The peak power measured in the conditions specified in subclause 4.3.1a, for a MS when allocated a channel, shall be no more than -36 dBm.

The peak power measured in the conditions specified in subclause 4.3.1b for a MS, when allocated a channel, shall be no more than:

– -36 dBm in the frequency band 9 kHz to 1 GHz;

– -30 dBm in all other frequency bands 1 GHz to 12,75 GHz.

The peak power measured in a 100 kHz bandwidth for a mobile, when not allocated a channel (idle mode), shall be no more than:

– -57 dBm in the frequency bands 9 kHz to 1000 MHz;

– -53 dBm in the frequency band 1 850 MHz to 1 910 MHz;

– -47 dBm in all other frequency bands 1 GHz to 12,75 GHz.

The power emitted by the MS in a 100 kHz bandwidth using the measurement techniques for modulation and wide band noise (subclause 4.2.1) shall not exceed:

– -79 dBm in the frequency band 869 MHz to 894 MHz;

– -71 dBm in the frequency band 1 930 MHz to 1 990 MHz.

A maximum of five exceptions with a level up to -36 dBm are permitted in each of the band 869 MHz to 894 MHz and 1 930 MHz to 1 990 MHz for each ARFCN used in the measurements.

4.4 Radio frequency tolerance

The radio frequency tolerance for the base transceiver station and the MS is defined in 3GPP TS 05.10.

4.5 Output level dynamic operation

NOTE: The term "any transmit band channel" is used here to mean:

– any RF channel of 200 kHz bandwidth centred on a multiple of 200 kHz which is within the relevant transmit band.

4.5.1 Base Transceiver Station

The BTS shall be capable of not transmitting a burst in a time slot not used by a logical channel or where DTX applies. The output power relative to time when sending a burst is shown in annex B. The reference level 0 dB corresponds to the output power level according to subclause 4. In the case where the bursts in two (or several) consecutive time slots are actually transmitted, at the same frequency, the template of annex B shall be respected during the useful part of each burst and at the beginning and the end of the series of consecutive bursts. The output power during the guard period between every two consecutive active timeslots shall not exceed the level allowed for the useful part of the first timeslot, or the level allowed for the useful part of the second timeslot plus 3 dB, whichever is the highest. The residual output power, if a timeslot is not activated, shall be maintained at, or below, a level of ‑30 dBc on the frequency channel in use. All emissions related to other frequency channels shall be in accordance with the wide band noise and spurious emissions requirements.

A measurement bandwidth of at least 300 kHz is assumed.

4.5.2 Mobile Station

The output power can be reduced by steps of 2 dB as listed in subclause 4.1.

The transmitted power level relative to time when sending a burst is shown in annex B. The reference level 0 dB corresponds to the output power level according to subclause 4. In the case of Multislot Configurations where the bursts in two or more consecutive time slots are actually transmitted at the same frequency, the template of annex B shall be respected during the useful part of each burst and at the beginning and the end of the series of consecutive bursts. The output power during the guard period between every two consecutive active timeslots shall not exceed the level allowed for the useful part of the first timeslot, or the level allowed for the useful part of the second timeslot plus 3 dB, whichever is the highest. The timing of the transmitted burst is specified in 3GPP TS 05.10. Between the active bursts, the residual output power shall be maintained at, or below, the level of:

‑ ‑59 dBc or ‑54 dBm, whichever is the greater for GSM 400, GSM 900, and GSM 850, except for the time slot preceding the active slot, for which the allowed level is ‑59 dBc or ‑36 dBm whichever is the greater;

‑ ‑48 dBc or ‑48 dBm, whichever is the greater for DCS 1 800 and PCS 1 900;

in any transmit band channel.

A measurement bandwidth of at least 300 kHz is assumed.

The transmitter, when in idle mode, will respect the conditions of subclause 4.3.3.

4.6 Modulation accuracy

4.6.1 GMSK modulation

When transmitting a burst, the phase accuracy of the signal, relative to the theoretical modulated waveforms as specified in 3GPP TS 05.04, is specified in the following way.

For any 148‑bits subsequence of the 511‑bits pseudo‑random sequence, defined in CCITT Recommendation O.153 fascicle IV.4, the phase error trajectory on the useful part of the burst (including tail bits), shall be measured by computing the difference between the phase of the transmitted waveform and the phase of the expected one. The RMS phase error (difference between the phase error trajectory and its linear regression on the active part of the time slot) shall not be greater than 5° with a maximum peak deviation during the useful part of the burst less than 20°.

NOTE: Using the encryption (ciphering mode) is an allowed means to generate the pseudo‑random sequence.

The burst timing of the modulated carrier in the active part of the time slot shall be chosen to ensure that all the modulating bits in the useful part of the burst (see 3GPP TS 05.04) influence the output phase in a time slot.

4.6.2 8-PSK modulation

The modulation accuracy is defined by the error vector between the vector representing the actual transmitted signal and the vector representing the error-free modulated signal. The magnitude of the error vector is called Error Vector Magnitude (EVM). For definition of the different measures of EVM, see annex G.

When transmitting a burst, the magnitude of the error vector of the signal, relative to the theoretical modulated waveforms as specified in 3GPP TS 05.04, is specified in the following way.

The magnitude of the error vector shall be computed by measuring the error vector between the vector representing the transmitted waveform and the vector representing the ideal one on the useful part of the burst (excluding tail symbols). When measuring the error vector a receive filter at baseband shall be used, defined as a raised-cosine filter with roll-off 0,25 and single side-band 6 dB bandwidth 90 kHz.

The measurement filter is windowed by multiplying its impulse response by a raised cosine window given as:

where T is the symbol interval.

The transmitted waveforms shall be Normal Bursts for 8-PSK as defined in 3GPP TS 05.02, with encrypted bits generated using consecutive bits from the 32767 bit length pseudo random sequence defined in ITU-T Recommendation O.151 (1992) [16].

4.6.2.1 RMS EVM

When transmitting a burst, the magnitude of the error vector of the signal, relative to the theoretical modulated waveforms as specified in 3GPP TS 05.04, is specified in the following way:

– the measured RMS EVM over the useful part of any burst, excluding tail bits, shall not exceed;

– for MS: under normal conditions 9,0 %
under extreme conditions 10,0 %

– for BTS; after any active element and excluding the effect of any passive combining equipment:

– under normal conditions 7,0 %
under extreme conditions 8,0 %

– after any active element and including the effect of passive combining equipment:
under normal conditions 8,0 %
under extreme conditions 9,0 %

The RMS EVM per burst is measured under the duration of at least 200 bursts.

4.6.2.2 Origin Offset Suppression

The origin offset shall be measured over at least 200 bursts. For each burst a value shall be calculated using the formula for the origin offset suppression shown in annex G, but before taking the logarithm the average over the number of bursts shall be computed. Then this average shall be transferred to dB scale and the resulting origin offset suppression shall exceed 30 dB for MS and 35 dB for BTS under normal and extreme conditions.

4.6.2.3 Peak EVM

The peak value of EVM is the peak error deviation within a burst, measured at each symbol interval, averaged over at least 200 bursts to reflect the transient nature of the peak deviation. The bursts shall have a minimum distance in time of 7 idle timeslots between them. The peak EVM values are acquired during the useful part of the burst, excluding tail bits.

– The measured peak EVM values shall be < 30 % for MS and < 22 % for BTS under normal and extreme conditions. For BTS, the effect of any passive combining equipment is excluded.

4.6.2.4 95:th percentile

The 95:th percentile is the point where 95% of the individual EVM values, measured at each symbol interval, is below that point. That is, only 5% of the symbols are allowed to have an EVM exceeding the 95:th-percentile point. The EVM values are acquired during the useful part of the burst, excluding tail bits, over 200 bursts.

The measured 95:th-percentile value shall be < 15 % for MS and < 11 % for BTS under normal and extreme conditions. For BTS, the effect of any combining equipment is excluded.

4.7 Intermodulation attenuation

The intermodulation attenuation is the ratio of the power level of the wanted signal to the power level of an intermodulation component. It is a measure of the capability of the transmitter to inhibit the generation of signals in its non‑linear elements caused by the presence of the carrier and an interfering signal reaching the transmitter via the antenna, or by non linear combining and amplification of multiple carriers.

4.7.1 Base transceiver station

An interfering CW signal shall be applied to the transmit antenna port, within the relevant BTS TX band at a frequency offset of  800 kHz, and with a power level 30 dB below the power level of the wanted signal.

The intermodulation products shall meet the requirements in subclause 4.7.2.

4.7.2 Intra BTS intermodulation attenuation

In a BTS intermodulation may be caused by combining several RF channels or amplification of multiple carriers to feed a single antenna, or when operating them in the close vicinity of each other. The BTS shall be configured with each transmitter operating at the maximum allowed power, with a full complement of transceivers and with modulation applied. For the measurement in the transmit band the equipment shall be operated at equal and minimum carrier frequency spacing specified for the BSS configuration under test. For the measurement in the receive band the equipment shall be operated with such a channel configuration that at least 3rd order intermodulation products fall into the receive band.

4.7.2.1 GSM 400, GSM 900, DCS 1800

All the following requirements relate to frequency offsets from the uppermost and lowermost carriers. The peak hold value of intermodulation components over a timeslot, shall not exceed ‑70 dBc or ‑36 dBm, whichever is the higher, for frequency offsets between 6 MHz and the edge of the relevant Tx band measured in a 300 kHz bandwidth. 1 in 100 timeslots may fail this test by up to a level of 10 dB. For offsets between 600 kHz to 6 MHz the requirements and the measurement technique is that specified in subclause 4.2.1.

The other requirements of subclause 4.3.2 in the band 9 kHz to 12,75 GHz shall still be met.

4.7.2.2 MXM 850 and MXM 1900

The following requirements apply to MXM 850 and MXM 1900 BTSs which include ANSI-136 [17] 30 kHz carriers, in addition to the 200 kHz carriers specified in the present document. All the following requirements relate to frequency offsets from the uppermost and lowermost carriers. The average value of intermodulation components for frequency offsets > 1,2 MHz to the edge of the relevant Tx band, shall not exceed:

(a) -60 dBc, measured in a 30 kHz bandwidth, relative to the average power of the 30 kHz channel carrier, measured in a 30 kHz bandwidth, using normal power averaging (per [17] Part 280), and

(b) -60 dBc, measured in a 200 kHz bandwidth, relative to the 200 kHz carrier average power, measured in a 300 kHz bandwidth and averaged over a timeslot.

In addition to the requirements of this section, the MXM 850 BTS and MXM 1900 BTS shall also comply with the applicable limits for spurious emissions established by the FCC rules for public mobile services [FCC Part 22, Subpart H] and FCC rules for wideband PCS services [14] respectively.

NOTE 1: In some areas, to avoid uncoordinated system impacts, it may be beneficial to use a more stringent value.
-70 dBc rms is suggested.

NOTE 2: For testing reasons, a MXM 1900 normal BTS fulfilling the PCS 1900 normal BTS requirements or a MXM 850 normal BTS fulfilling GSM 850 normal BTS requirements in this subclause may be considered fulfilling the requirements for MXM 1900 normal BTS or MXM 850 normal BTS respectively.

4.7.2.3 GSM 850 and PCS 1900

All the following requirements relate to frequency offsets from the uppermost and lowermost carriers. For frequency offsets > 1,8  MHz to the edge of the relevant Tx band, measured in 300 kHz bandwidth the average value of intermodulation components over a timeslot shall not exceed ‑70 dBc relative to the per carrier power or ‑46 dBm, whichever is the higher. For offsets between 600 kHz and 1,8 MHz, the measurement technique and requirements are those specified in subclause 4.2.1, except for offsets between 1,2 MHz and 1,8 MHz, where the value of intermodulation components shall not exceed –70 dBc.

The other requirements of subclause 4.3.2 in the band 9 kHz to 12,75 GHz shall still be met.

In regions where additional protection between uncoordinated systems is required by national regulatory agencies, the intermodulation components for frequency offsets > 1,2 MHz may be up to –60 dBc, if not violating the national regulation requirements. In this case the PCS 1900 BTS and GSM 850 shall also comply with the applicable limits for spurious emissions established by the FCC rules for wideband PCS services [14] and FCC rules for public mobile services [FCC Part 22, Subpart H] respectively, or similar national requirements with comparable limits and rules.

4.7.3 Void

4.7.4 Mobile PBX (GSM 900 only)

In a mobile PBX intermodulation may be caused when operating transmitters in the close vicinity of each other. The intermodulation specification for mobile PBXs (GSM 900 only) shall be that stated in subclause 4.7.2.