1 
 Outline of Proposed Amendment to Ministerial Ordinance  
 
1 Item  
Partial amendment of Radio equipment regulations  etc. 
 
2 Amendment to ministerial ordinance  
⚫ Ordinance  for Enforcement of the Radio Act   
⚫ Ordinance on Radio Equipment  
⚫ Ordinance  on Technical Standards Conformity Certification of Specified Radio 
Equipment  
 
3 Reasons for amendment  
Japan will amend the current  Ordinance for Enforcement of the Radio Act and 
Ordinance on Radio Equipment, etc. to expand the band of the fifth generation mobile 
communication system by adding the 4.9 GHz band to TDD -NR(Time Division 
Duplex -New Radio)  mobile communication system.  
 
4 Outline of the amendment  
Technical requirements of radio equipment  
(The following items written in red indicate points to change.  The items that are not 
listed, there are no changes or they are compliant with 3GPP. ) 
 
(1) M obile telecommunications base station (excluding femtocell base station) and 
UE(user equipment) radio equipment  for TDD -NR 
Item  Technical requirements  
Frequency 
Band  2330-2370MHz, 3.4 -4.1GHz, 4.5 -5.0GHz*1 27-29.5GHz*1 
Channel 
Bandwidth  BS(base station ): 
10MHz, 15MHz, 20MHz, 25MHz,30MHz, 40MHz,  
50MHz, 60MHz, 70MHz, 80MHz, 90MHz, 100MHz  
UE: 
10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 40MHz,  
50MHz, 60MHz,  80MHz, 90MHz, 100MHz  50MHz, 100MHz,  
200MHz, 400MHz  
Duplex  TDD  TDD  
Modulation  N/A N/A   
2 
 Allowable  
Maximum 
Antenna 
Power  BS:  
N/A 
UE: 
Frequency  Maximum Antenna Power  
2330 -2370MHz,  
4.0-4.1GHz,  
4.6-4.8GHz  200mW  
3.4-4.0GHz,  
4.5-4.6GHz,  
4.8-5.0GHz  800mW (plurality of antenna terminals)  
400mW (single antenna terminal)  
 BS: N/A  
UE: 3.16W  
Allowable 
Maximum 
Antenna Gain  BS: N/A  
UE: 3dBi*2 BS: N/A  
UE: 20dBi*3 
*1 4.6 -4.9GHz and 28.2 -29.1GHz are for local 5G.  
*2 Within the range in which the EIRP is 32dBm (when the transmission frequency is 
2330 -2370MHz, 4.0 -4.1GHz or 4.6 -4.8GHz, it is assumed to be 26dBm.) or less, it is 
possible to compensate for the reduction in antenna power.  
*3 Within the range in which the EIRP is 55dBm  or less, it is possible to compensate for 
the reduction in antenna power.  
 
(2) Mobile telecommunications femtocell base station radio equipment  for TDD -NR 
Item  Technical requirements  
Frequency Band  3.4-4.1GHz, 4.5 -5.0GHz*1 27.0-29.1GHz*1 
Channel Bandwidth  10MHz, 15MHz, 20MHz, 25MHz,  
30MHz, 40MHz, 50MHz, 60MHz,  
70MHz, 80MHz, 90MHz, 100MHz  50MHz, 100MHz, 200MHz, 400MHz  
Duplex  TDD  TDD 
Modulation  N/A N/A 
Allowable  Maximum 
Antenna Power  100mW  400mW  
Allowable Maximum 
Antenna Gain  0dBi 0dBi 
Allowable Deviation 
of Frequency  ±(0.25ppm + 12Hz)  ±(0.25ppm + 12Hz)   
3 
 Allowable Deviation 
of Antenna Power  -50% to +100%  
(With antenna terminal)  
-55% to +124%  
(With out antenna terminal)  -70% to +224%  
Allowable 
Unwanted Emission 
Level  -13dBm*1 (With antenna terminal)  
-4dBm*1 (Without antenna terminal)  -13dBm*2 
Allowable Adjacent 
Channel Leakage 
Ratio  -13dBm/MHz or -44.2dBc  
(With antenna terminal)  
-4dBm/MHz or -43.8dBc  
(Without antenna terminal)  -10.3dBm/MHz or -25.7dBc  
Spectrum Mask  Offset Frequency  
 (Δf) Tolerance  
0.05MHz -5.05MHz  -5.5 - 7/5×(Δf- 0.05) 
dBm/100kHz  
5.05MHz -10.05MHz  -12.5dBm/100kHz  
10.5MHz - -13dBm/MHz  
 Offset Frequency  
 (Δf) Tolerance  
0.5MHz ≦Δf  
< (TF*3 ×0.1 + 0.5)MHz  -2.3dBm/100kHz  
(TF*3 ×0.1 + 0.5)MHz 
≦Δf -13dBm/MHz  
 
Allowable Leak 
Radiation from 
Receiver Circuit  Frequency  Leak Radiation from 
Receiver Circuit  
30MHz -
1000MHz  -57dBm/100kHz  
 (With antenna terminal)  
-36dBm/100kHz  
 (Without antenna terminal)  
1000MHz - -47dBm/MHz  
 (With antenna terminal)  
-30dBm/MHz  
 (Without antenna terminal)  
 Frequency  Leak Radiation from 
Receiver Circuit  
30MHz -1000MHz  -36dBm/100kHz  
1000MHz -18GHz  -30dBm/MHz  
18GHz -23.5GHz  -15dBm/10MHz  
23.5GHz -25GHz  -10dBm/10MHz  
31GHz -32.5GHz  -10dBm/10MHz  
32.5GHz -41.5GHz  -15dBm/10MHz  
41.5GHz - -20dBm/10MHz  
 
*1 The reference bandwidth is follows:  
Frequency  Reference Bandwidth  
9kHz-150kHz  1kHz 
150kHz -30MHz  10kHz  
30MHz -1000MHz  100kHz  
1000MHz - 1MHz  
*2 The reference bandwidth is follows:  
Frequency  Reference Bandwidth   
4 
 30MHz -1000MHz  100kHz  
1000MHz - 1MHz  
*3 TF is transmission bandwidth.  
 
(3) Mobile telecommunications LPR radio equipment for TDD -NR 
Item  Technical requirements  
Frequency 
Band  3.4-4.1GHz, 4.5 -5.0GHz*1 27-29.5GHz*1 
Channel 
Bandwidth  DL: 
10MHz, 15MHz, 20MHz, 25MHz,  
30MHz, 40MHz, 50MHz, 60MHz,  
70MHz, 80MHz, 90MHz, 100MHz  
UL: 
10MHz, 15MHz, 20MHz, 25MHz,  
30MHz, 40MHz, 50MHz, 60MHz,   
80MHz, 90MHz, 100MHz  50MHz, 100MHz, 200MHz, 400MHz  
Duplex  TDD  TDD  
Modulation  N/A N/A 
Allowable 
Antenna 
Power  250mW*2 200mW  
Allowable 
Antenna Gain  DL: 0dBi  
UL: 9dBi*2 20dBi  
Allowable 
Deviation of 
Frequency  ±(0.1ppm + 12Hz)  ±(0.1ppm + 12Hz)  
Allowable 
Deviation of 
Antenna 
Power  -50% to +100%  -74% to +224%  
Allowable 
Adjacent 
Channel 
Leakage 
Ratio  DL: -13dBm/MHz or -44.2dBc*3 
UL: -30.2dBc*4 DL: -13dBm/MHz or -25.7dBc  
UL: -14.7dBc   
5 
 Allowable 
Unwanted 
Emission 
Level  DL:  
-13dBm*5 
UL:  
Frequency  Unwanted Emission 
Level  
< 1000MHz  -36dBm*5 
1000MHz ≦ -30dBm*5 
 DL:  
-13dBm*6,*7 
UL:  
Frequency  Unwanted 
Emission Level  
6GHz ≦ -13dBm/MHz*8 
 
Allowable 
Out-of-band 
Gain  Detuning Frequency 
from the Transmit 
Frequency Band (f)  Out-of-band 
Gain  
200kHz ≦ f < 4MHz  60.8dB  
4MHz ≦ f < 15MHz  45.8dB  
15MHz ≦ 35.8dB  
 Detuning Frequency 
from the Transmit 
Frequency Band (f)  Out-of-
band Gain  
40MHz ≦ f < 150MHz  70.1dB  
150MHz ≦ f < 400MHz  57.1dB  
400MHz ≦ 37.1dB  
 
Allowable 
Leak 
Radiation 
from Receiver 
Circuit  Frequency  Leak Radiation from 
Receiver Circuit  
30MHz -
1000MHz  -57dBm/100kHz  
1000MHz ≦ -47dBm/MHz  
 N/A 
*1 4.6-4.9GHz and 28.2 -29.1GHz are for local 5G.  
*2 If 3.9 -4.1GHz or 4.5 -4.6GHz is used outdoors, the EIRP must be less than or equal to 
29dBm  (3.9-4.0GHz),  22dBm ( 4.0-4.1GHz ) or 30dBm  (4.5-4.6GHz).  
*3 -43.8dBc for a passband width greater than or equal to 30 MHz.  
*4 -29.8dBc for a passband width greater than or equal to 30MHz.  
*5 The reference bandwidth is follows:  
Frequency  Reference Bandwidth  
9kHz -150kHz  1kHz 
150kHz -30MHz  10kHz  
30MHz -1000MHz  100kHz  
1000MHz ≦ 1000MHz  
*6 The reference bandwidth is follows:  
Frequency  Reference Bandwidth  
30MHz -1000MHz  100kHz  
1000MHz ≦ 1000MHz  
*7 From 23.6 to 24 GHz, it is -9dBm/200MHz.  
*8 From 23.6 to 24 GHz, it is 1dBm/200MHz.  
  
6 
  (4) Mobile telecommunications repeater (excluding LPR) radio equipment for TDD -
NR 
Item  Technical requirements  
Frequency 
Band  3.4-3.6GHz, 4.8 -5.0GHz*1 27-29.5GHz*1 
Channel 
Bandwidth  DL: 
10MHz, 15MHz, 20MHz, 25MHz,  
30MHz, 40MHz, 50MHz, 60MHz,  
70MHz, 80MHz, 90MHz, 100MHz  
UL: 
10MHz, 15MHz, 20MHz, 25MHz,  
30MHz, 40MHz, 50MHz, 60MHz,   
80MHz, 90MHz, 100MHz  50MHz, 100MHz, 200MHz, 400MHz  
Duplex  TDD  TDD  
Modulation  N/A N/A 
Allowable 
Antenna 
Power  N/A N/A 
Allowable 
Antenna Gain  N/A N/A 
Allowable 
Deviation of 
Frequency  ±(0.1ppm + 12Hz)  ±(0.1ppm + 12Hz)  
Allowable 
Deviation of 
Antenna 
Power  -50% to +100%  -74% to +224%  
Allowable 
Adjacent 
Channel 
Leakage 
Ratio  DL: -13dBm/MHz or -44.2dBc*2 
UL: -30.2dBc*3 DL: -13dBm/MHz or -25.7dBc  
UL: -14.7dBc   
7 
 Allowable 
Unwanted 
Emission 
Level  DL:  
-13dBm*4 
UL:  
Frequency  Unwanted Emission 
Level  
< 1000MHz  -36dBm*4 
1000MHz ≦ -30dBm*4 
 DL:  
-13dBm*5,*6 
UL:  
Frequency  Unwanted 
Emission Level  
6GHz ≦ -13dBm/MHz*7 
 
Allowable 
Out-of-band 
Gain  N/A N/A 
Allowable 
Leak 
Radiation 
from Receiver 
Circuit  Frequency  Leak Radiation from 
Receiver Circuit  
30MHz -
1000MHz  -57dBm/100kHz  
1000MHz ≦ -47dBm/MHz  
 N/A 
*1 4.8 -4.9GHz and 28.2 -29.1GHz are for local 5G.  
*2 -43.8dBc for a passband width greater than or equal to 30MHz.  
*3 -29.8dBc for a passband width greater than or equal to 30MHz.  
*4 The reference bandwidth is follows:  
Frequency  Reference Bandwidth  
9kHz -150kHz  1kHz 
150kHz -30MHz  10kHz  
30MHz -1000MHz  100kHz  
1000MHz ≦ 1000MHz  
*5 The reference bandwidth is follows:  
Frequency  Reference Bandwidth  
30MHz -1000MHz  100kHz  
1000MHz ≦ 1000MHz  
*6 From 23.6 to 24 GHz, it is -9dBm/200MHz.  
*7 From 23.6 to 24 GHz, it is 1dBm/200MHz.  
 
 
 
5 Proposed date of entry into force  
September , 202 4