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Radiofrequency Band Plans

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Radiofrequency Band Plans
Frequency band plans specify the purposes for which bands may be used including the reservation for future use and for the prevention or control of interference to radiocommunications.
 
AITI prepares the frequency band plans for the following services:
 
•  ISM Bands
 
These frequency band plans are consistent with Brunei Darussalam’s radio frequency spectrum allocations and conform to the agreement made with neighbouring countries.
 
 
 
Mobile services provide communications between mobile stations and repeater/base stations or between mobile stations. Mobile radiocommunications services include the Public Cellular Services, Trunked Radio/Land mobile and Broadband Wireless Access (BWA).
 
AITI prepares the frequency band plans for the following mobile services:
 
•  Public Cellular Services
•  Trunked Radio/Land Mobile Services
 
a) Public Cellular Services
 
Public mobile services include the operation of mobile communications systems (e.g base stations, mobile switching centres) required to offer public cellular services (including the value added services). In Brunei Darussalam there are currently two operators that provide public cellular services, DST Communications Sdn Bhd and BMobile communication Sdn Bhd.DST Communications Sdn Bhd established in 1995, has grown from providing AMPS analogue type telephone service provider to a GSM service provider. It has further expanded to providing 3G services by May 2008. BMobile Communications Sdn Bhd became Brunei Darussalam’s first 3G service provider in 2005. It further expanded in March 2008 by providing 3.5G technology by introducing Mobile Broadband.
 
 



 
SYSTEMS
FREQUENCY RANGE
OPERATORS
GSM
900 -910 MHz/
945 -955 MHz
DST Sdn Bhd
3G
1920 – 1980 MHz
2110 – 2170 MHz
DST Sdn Bhd,
PCSB
 
 
b) Trunked Radio/Land Mobile Services

Trunk Radio services include land mobile network which provides two-way communications between fixed control point (i.e base station) and a number of mobile transceiver units (e.g vehicular or hand-held portable stations). The coverage area of Land mobile services is either localised or nation-wide.
 
 
 
Fixed services provides communications between specified fixed points either point-to-point or point-to-multipoint. Fixed radiocommunications services include the microwave fixed link networks and Multichannel Multipoint Distribution Service (MMDS).
 
AITI prepares the frequency channel arrangement for microwave fixed link operating in the following frequency bands:
 
 
 
 
Broadcasting service is defined in the ITU Radio Regulations as “a radio-communication service in which the transmissions are intended for the direct reception by the general public. This service may include sound transmissions, television transmissions or other type of transmission”.
 
AITI prepares the frequency band plans for the following broadcasting services:
 
•  FM Broadcasting (87.5 – 108.0 MHz)
•  Digital Terrestrial Broadcasting (VHF Band III and UHF Band IV/V)
 
FM Broadcasting (87.5 – 108.0 MHz)
 
In Brunei Darussalam, FM Broadcasting services are mainly provided by Radio Television Brunei (RTB) and Kristal Media Sdn Bhd.
 
Frequency (MHz)
Station
89.1 / 99.7
Al-Qur’an
90.7 / 98.7
Kristal FM
91.4 / 91.0
Pelangi FM
92.3 / 93.8
Nasional FM
93.3 / 94.9
Nur Islam
94.1 / 97.7
Harmoni FM
95.9 / 96.9
Pilihan FM
 
 
Digital Terrestrial Broadcasting (VHF Band III and UHF Band IV/V)
 
The table below illustrates the existing agreement between Brunei Darussalam and Malaysia for the channel allocations for Digital Terrestrial Broadcasting and Wireless/Mobile Communication Services in the VHF Band III and UHF Bands IV/V.
 
 
 
 
The term “Short Range Devices” (SRD) is intended to cover radio transmitters that have a localised area of operation due to their low output power (i.e generally 100 mW or less). These include radio-communication equipment such as radio microphones, cordless phones, remote control devices, etc.
 
SRD could be used virtually everywhere and they operate on a wide range of frequencies. Such devices are, however, permitted to operate on a non-interference and non-protection basis. That is, they must share-use the frequencies with other radio applications and they must not cause interference to other radiocommunication networks duly authorised by AITI.
 
Spectrum allocations for SRD which are based on ITU-R Radio Regulations, the availability of equipment in the market and any international standards are illustrated in the table below:
 
 

The industrial, scientific and medical radio bands are defined by ITU-R in Article 5 footnotes 5.138, 5.150 and 5.280 of the Radio Regulations. The use of ISM applications shall be subject to special authorisation by the administration concerned, in agreement with other administrations whose radiocommunication services might be affected.
 
These bands may also be used for communications devices, however these devices must tolerate any interference from ISM equipments.  These bands are typically given over to uses intended for unlicensed operation, since unlicensed operations are typically tolerant to interference.
 
The table below illustrates the ISM bands:
 
Frequency Range (MHz)
Centre Frequency
Remarks
6.765–6.795
6.780 MHz
Subject to local acceptance
13.553–13.567
13.560 MHz
 
26.957–27.283
27.120 MHz
 
40.66–40.70
40.68 MHz
 
2.400–2.500 GHz
2.450 GHz
 
5.725–5.875 GHz
5.800 GHz
 
24–24.25 GHz
24.125 GHz
 
61–61.5 GHz
61.25 GHz
Subject to local acceptance
122–123 GHz
122.5 GHz
Subject to local acceptance
244–246 GHz
245 GHz
Subject to local acceptance
 
The power requirement in several ISM bands as tabulated below:
  
WLAN
UHF RFIDs
Frequency allocation (GHz)
Power Limits (W)
License Required
Frequency Allocations (MHz)
Power Limits (W)
License Required
2.400 – 2.4835
0.200
No
866 – 869
500
No
5.150 – 5.350
0.200
No
923 - 925
500
No
5.725 – 5.850
1
No
2
Yes
5.725 – 5.850
4
Yes
 
 
 
 
Amateur radio service is defined as a radio-communications service in which a station is used for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, by duly authorised persons who are interested in radio technique solely with a personal aim and without any pecuniary interest.
 
Amateur Radio has been recognized as an important part of the radio community. ITU has allocated frequency bands for amateur radio service internationally in a sharing basis.
 
The table below illustrates the frequency bands used for Amateur Radio in Brunei Darussalam:
 
Frequency Band (MHz)
Metre Band (m)
License class
Max Power Output (Watts)
Remarks
1.800 - 1.950
160
Advanced
10
 
3.500 – 3900
80
Advanced
150
 
7.000 - 7.100
40
Advanced
150
 
10.100 - 10.150
30
Advanced
150
Secondary Basis
14.000 - 14.350
20
Advanced
150
 
18.068 - 18.168
17
Advanced
150
 
21.000 - 21.450
15
Advanced
150
 
24.890 - 24.990
12
Advanced
150
 
27.12
11
Advanced
150
 
28.000 - 29.700
10
Advanced
150
 
50.000 - 54.000
6
Advanced
150
 
144.000 - 146.000
2
Standard
150
Simplex
146.0125 - 148.000
2
Standard
150
Duplex
430.000 - 440.000
0.7
Advanced
10
See Table Below *
 *Band Plan and Spot Frequencies for UHF Amature Radio Band 430 - 440 MHz ( on secondary basis)
 
 
Band
Maximum Output Power
431.500 - 431.900
10 watts erp
433.200 - 433.700
437.300 - 437.900
439.300 - 439.900