Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 1    
   
   
 
 
 
 
 
 
 
 
 
 
 
Technical Specifications for Base Station Radio 
Frequency Equipment of Third Generation Mobile 
Telecommunication  
                  
 
 
 
 
 
     National Communications Commission (NCC)  
 Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 2 Technical Specifications for Base Station Radio 
Frequency Equipment of Third Generation Mobile 
Telecommunication  
1. Legal source   
The specifications are promulgated pursuant to Item 1, Article 50 of the 
Telecommunications Act.  
2. Scope of application  
This specifications apply to the type approval of the radio frequency 
equipment of base stations, femtocell access points and repeaters, which are 
WCDMA FDD stated in IMT -2000. The relevant frequency bands are as follows:  
Band 1 (1920  MHz～1980 MHz/2110 MHz ～2170 MHz), Band 3 (1710 MHz ～1785 
MHz/1805 MHz ～1880 MHz), Band 7 (2500 MHz ～2570 MHz/2620 MHz ～2690 MHz) and 
Band 8 (885 MHz ～915 MHz/930 MHz ～960 MHz).  
3. Technical standards  
The specifications are stipulated in accordance with CNS13438, CNS14336 -1, 
CNS15598 -1, 3GPP TS 25.104, TS 25.106, TS 25.141 and other international 
technical specifications.  
4. General testing items and eligibility criteria  
4.1 Channel spacing: 5 MHz.  
4.2 Electromagnetic Compatibility (EMC): Shall comply with CNS13438 . 
4.3 Electrical safety: Shall comply with CNS13438 or CNS 15598 -1. 
5. Testing items and eligibility criteria for base station radio frequency 
equipment  
5.1 Tests of this section are applicable to base station radio frequency 
equipment.  
5.2 Occupied bandwi dth: Shall be less than or equal to 5 MHz.  
5.3 Maximum output power: In normal conditions, the maximum output power 
shall remain within +2dB and -2dB of the rated output power.  
5.4 Frequency stability: Shall remain within ±0.05 ppm of the main frequency.  
5.5 Spectrum  emission mask: Shall comply with the spectrum emission mask 
shown in figure 1 and the spectrum emission mask limit values prescribed 
in table 1.  
5.6 Spurious emissions: Shall comply with the spurious emissions limit values 
prescribed in table 2 . 
5.7 Adjacent Channel Leakage power Ratio (ACLR):  If the adjacent channel Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 3 offset is 5 MHz, the ACLR limit is 45 dB. If the adjacent channel offset 
is 10 MHz, the ACLR limit is 50 dB.  
5.8 Transmit intermodulation:  
5.8.1 The transmit  intermodulation level shall not exceed the spurious 
emissions limit values prescribed in table2.   
5.8.2 Testing methods: Inject modulated interference signal into the 
antenna connector at a power level of 30 dB lower than main signal. 
The interference fre quency shall be offset ±5MHz, ±10MHz and ±15MHz 
from the main signal. The interference frequency that are outside of 
any downlink application band are excluded.  
6. Testing items and eligibility criteria for femtocell access point radio 
frequency equipment  
6.1 Tests of this section are applicable to femtocell access points radio 
frequency equipment.  
6.2 Occupied bandwidth: Shall be less than or equal to 5 MHz.  
6.3 Maximum output power: In normal conditions, the rated output power limit 
is 20 dBm, and the max imum output power shall remain within +2.7dB and -
2.7dB of the rated output power.  
6.4 Frequency stability: Shall remain within ±0.25 ppm of the main frequency.  
6.5 Spectrum  emission mask: Shall comply with the spectrum emission mask 
shown in figure 1, the  spectrum emission mask limit values prescribed in 
table 1 and the extra spectrum emission mask limit values prescribed in 
table 3.  
6.6 Spurious emissions: Shall comply with the spurious emissions limit values 
prescribed in table 2.  
6.7 Adjacent Channel Le akage power Ratio (ACLR):   
6.7.1 Adjacent channel leakage power shall comply with 6.7.2 or 6.7.3, 
whichever is the higher.  
6.7.2 ACLR limit: If the adjacent channel offset is 5 MHz, the ACLR limit 
is 45 dB. If the adjacent channel offset is 10 MHz, the AC LR limit is 
50 dB. 
6.7.3 Adjacent channel leakage power limit: the RRC filtered mean power 
centred on an adjacent channel frequency shall be less than or equal 
to -44.2dBm/3.84MHz.  
6.8 Transmit intermodulation : 
6.8.1 The transmit  intermodulation level shall not exceed the spurious 
emissions limit values prescribed in table2.   Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 4 6.8.2 Testing methods: Inject modulated interference signal into the 
antenna connector at a power level of 30 dB lower than main signal. 
The interference fre quency shall be offset ±5MHz, ±10MHz and ±15MHz 
from the main signal. The interference frequency that are outside of 
any downlink application band are excluded.  
6.9 Output power for adjacent channel protection: According to the setting of 
table 4, shall co mply with the limit values prescribed in table 5. The 
output power shall remain within±2.7 dB of the limit values in table 5.  
7. Testing items and eligibility criteria for repeater radio frequency equipment  
7.1 Tests of this section are applicable to repea ter radio frequency 
equipment.  
7.2 Maximum output power: In normal conditions, if the rated output power is 
more than or equal to 31dBm, the maximum output power shall remain within 
+2dB and -2dB of the rated output power. If the rated output power is 
less than 31dBm, the maximum output power shall remain within +3dB and -
3dB of the rated output power.  
7.3 Frequency stability: Shall remain within ±0.01 ppm of the main frequency.  
7.4 Spectrum  emission mask: Shall comply with the spectrum emission mask 
shown in figure 1 and the spectrum emission mask limit values prescribed 
in table 1.  
7.5 Spurious emissions: Shall comply with the spurious emissions limit values 
prescribed in table 6.  
7.6 Input intermodulation:  The input intermodulation limit values are 
prescribed in table 7, and the input intermodulation requirement for 
interfering signals in other systems are in table 8.  
7.7 Out of band gain:  Shall comply with limit values of out of band gain 
prescribed in table 9.  
8. Test Requirement  
Except as otherwise provided in these technical specifications, testing 
methods for testing items shall be processed based on the inspection 
requirements stated in Point 5 of the Low -power Radio -frequency Devices 
Technical Specifications (LPRFD Technical Requirements). The in spection 
procedures shall be processed in accordance of the Appendix 1 “Referential 
Procedures of Inspecting Transmitters” of the Low -power Radio -frequency 
Devices Technical Specifications.  
 
  Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 5 Table 1  : Limit Values of S pectrum Emission Mask 
Maximum 
Output  
Power, P  Frequency offset of 
measurement filter -3dB 
point, f Frequency offset of measurement 
filter centre frequency, f_offset  Maximum level  Measurement 
bandwidth  
P ≧43 
dBm  2.5≦f < 2.7 MHz  2.515 MHz ≦f_offset < 2.715 MHz  -14 dBm  30 kHz 
2.7≦f < 3.5 MHz  2.715 MHz ≦f_offset < 3 .515 MHz  - 14-15（f_offset -2.715）dBm  30 kHz  
 3.515 MHz ≦f_offset < 4 .0 MHz  -26 dBm  30 kHz  
3.5≦f≦fmax MHz  4.0 MHz≦f_offset < f_offset max -13 dBm  1 MHz  
39 ≦P < 
43 dBm  2.5≦f < 2.7 MHz  2.515 MHz ≦f_offset < 2.715 MHz  -14 dBm  30 kHz 
2.7≦f < 3.5 MHz  2.715 MHz ≦f_offset < 3 .515 MHz  - 14-15（f_offset -2.715）dBm  30 kHz  
 3.515 MHz ≦f_offset < 4 .0 MHz  -26 dBm  30 kHz  
3.5≦f < 7.5 MHz  4.0 MHz≦f_offset < 8.0 MHz  -13 dBm  1 MHz  
7.5≦f≦fmax MHz  8.0MHz≦f_offset < f_offset max P - 56 dBm  1 MHz  
31 ≦P < 
39 dBm  2.5≦f < 2.7 MHz  2.515 MHz ≦f_offset < 2 .715 MHz  P - 53 dBm  30 kHz  
2.7≦f < 3.5 MHz  2.715 MHz ≦f_offset < 3.515 MHz  P - 53-15（f_offset - 2.715）dBm  30 kHz  
 3.515 MHz ≦f_offset < 4.0 MHz  P - 65 dBm  30 kHz  
3.5≦f < 7.5 MHz  4.0 MHz≦f_offset < 8.0 MHz  P - 52 dBm  1 MHz  
7.5≦f≦fmax MHz  8.0MHz≦f_offset < f_offset max P - 56 dBm  1 MHz  
P < 31 
dBm  2.5≦f < 2.7 MHz  2.515 MHz ≦f_offset < 2 .715 MHz  -22 dBm  30 kHz  
2.7≦f < 3.5 MHz  2.715 MHz ≦f_offset < 3.515 MHz  -22 -15（ f_offset - 2.715）dBm  30 kHz  
 3.515 MHz ≦f_offset < 4.0 MHz  -34 dBm  30 kHz  
3.5≦f < 7.5 MHz  4.0 MHz≦f_offset < 8.0 MHz  -21 dBm  1 MHz  
7.5≦f≦fmax MHz  8.0MHz≦f_offset < f_offset max -25 dBm  1 MHz  
 
Table 2 : S purious Emissions  Limit Values  of Base station  and Femtocell A ccess  Point Radio 
Frequency  Equipment   
Category  Band Maximum 
level  Measurement 
bandwidth  
Category A  9kHz – 150kHz  
-13 dBm  1 kHz  
150kHz – 30MHz  10 kHz  
30MHz – 1GHz  100 kHz  
1GHz – 12.75 GHz  1 MHz  
Category B  Band 1  
Band 3  
Band 7  9kHz  150kHz  - 36 dBm  1 kHz  
150kHz  30MHz  - 36 dBm  10 kHz  
30MHz  1GHz  -36 dBm  100 kHz  
1GHz Flow-10MHz  -30 dBm  1 MHz  
Flow-10MHz  Fhigh+10MHz  -15 dBm  1 MHz  
Fhigh+10MHz 12.75GHz  -30 dBm  1 MHz  
Band 8  9kHz  150kHz  -36 dBm  1 kHz  
150kHz  30MHz  -36 dBm  10 kHz  
30MHz Flow-10MHz  -36 dBm  100 kHz  
Flow-10MHz  Fhigh+10MHz  -16 dBm  100 kHz  
Fhigh+10MHz 1GHz  -36 dBm  100 kHz  
1GHz 12.75GHz  -30 dBm  1 MHz  
Note: Flow is the lowest downlink frequency of the operating band ; Fhigh is the highest downlink 
frequency of operating band.  
 Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 6 Table 3 : Extra S purious Emissions  Limit Values  of Femtocell A ccess  Point Radio Frequency  
Equipment  
Maximum 
Output Power, P  Frequency offset of 
measurement filter -3dB 
point, f Frequency offset of measurement 
filter centre frequency, f_offset  Maximum 
level Measurement 
bandwidth  
6≦P≦20 dBm  12.5≦f≦fmax MHz  13MHz  f_offset < f_offset max P – 56dBm  1 MHz  
P<6 dBm  12.5≦f≦fmax MHz  13MHz  f_offset < f_offset max -50 dBm  1 MHz  
 
Table 4 : Test Parameters for  Output Power for Adjacent Channel Protection  of Femtocell A ccess  Point 
Radio Frequency  Equipment  
Testing Environment  CPICH 
cEˆ （dBm） Ioh （dBm） 
1 -80 -50 
2 -90 -60 
3 -100 -70 
4 -100 -50 
 
Table 5 : Limit Values  for Output Power for Adjacent Channel Protection  of Femtocell A ccess  Point 
Radio Frequency  Equipment  
Input Conditions  Output Power  
Ioh > CPICH
cEˆ +43dB  
and CPICH
cEˆ ≧-105dBm  ≦+10dBm  
Ioh ≦ CPICH
cEˆ +43dB  
and CPICH
cEˆ ≧-105dBm   ≦ max（8 dBm, min （20dBm, CPICH
cEˆ +100dB）） 
Note：CPICH
cEˆ : the code power of adjacent channel ’s common pilot channel  
    Ioh : received power density including the signal and interferences; however, the signal of 
the object to be measured is excluded  
 
Table 6 : S purious Emissions  Limit Values  of Repeater  Radio Frequency  Equipment  
Category  Band Maximum 
level  Measurement 
bandwidth  
Category A  9kHz – 150kHz  
-13 dBm  1 kHz  
150kHz – 30MHz  10 kHz  
30MHz – 1GHz  100 kHz  
1GHz – 12.75 GHz  1 MHz  
Category B  9kHz – 150kHz  -36 dBm  1 kHz  
150kHz – 30MHz  -36 dBm  10 kHz  
30MHz – 1GHz  -36 dBm  100 kHz  
1GHz – 12.75 GHz  -30 dBm  1 MHz  
  Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 7  
Table 7 : Input  Intermodulation Limit Values  of Repeater  Radio Frequency  Equipment  
f_offset  Interfering signal levels  Type of signals  Measurement bandwidth  
3.5 MHz  -40 dBm  2 CW carriers  1 MHz  
Note: f_offset  is the distance between the centre frequency of first or last channel in the pass band 
and the interfering signals . 
 
Table 8 : I nput Intermodulation  R equirement  f or  I nterfering  Signals in Other Systems  of 
Repeater  Radio Frequency  Equipment  
Co-located other 
systems  Frequency of 
interfering signals  Interfering signal 
levels  Type of signals  Measurement 
bandwidth  
GSM900  921 - 960 MHz  16 dBm  2 CW carriers  1 MHz  
DCS1800  1805 - 1880 MHz  16 dBm  2 CW carriers  1 MHz  
UTRA -FDD  or E-
UTRA FDD  2110 - 2170 MHz  16 dBm  2 CW carriers  1 MHz  
UTRA -FDD  or E-
UTRA FDD  1805 - 1880 MHz  16 dBm  2 CW carriers  1 MHz  
UTRA -FDD  or E-
UTRA FDD  2620 - 2690 MHz  16 dBm  2 CW carriers  1 MHz  
UTRA -FDD  or E-
UTRA FDD  925 - 960 MHz  16 dBm  2 CW carriers  1 MHz  
E-UTRA  758 - 803 MHz  16 dBm  2 CW carriers  1 MHz  
 
 
Table 9 : Out of band gain  limit values  of Repeater  Radio Frequency  Equipment   
f_offset  Out of band gain  
limit value  
2.7 ≦ f_offset < 3.5 MHz  60 dB  
3.5 ≦ f_offset < 7.5 MHz  45 dB  
7.5 ≦ f_offset < 12.5 MHz  45 dB  
12.5 MHz ≦ f_offset  35 dB  
Note: f_offset  is the distance between the centre frequency of first or last channel in the pass band 
and the interfering signals . 
  Technical Specifications of 
the Telecommunications     IS2038 
Inspection Requirements   Date : August 14, 2018 
 
 8 Figure  1 : Spectrum E mission Mask