These Regulations are promulgated pursuant to Paragraph 3, Article 46 of the Telecommunications Act (hereinafter referred to as the “Act”).

The National Communications Commission (NCC) is the competent authority of the Regulations.

The terms in the Regulations are defined as follows:
1. Mobile communications: communications that use radio terminal equipment via the mobile communications network.
2. Mobile communications system: the communications system composed of equipment such as mobile communications switches, mobile stations, base stations, network and accounting administration equipment.
3. Mobile communications network: the communications network composed of the mobile communications system and telecommunications machines and lines.
4. Mobile communications network business: the business announced by the Executive Yuan in accordance with Paragraph 6, Article 12 of the Act.
5. Mobile station: the radio terminal equipment used for the mobile communications network businesses.
6. Base station: the equipment established on the land with radio communications links used to communicate among mobile stations or between mobile stations and non-mobile communications business users.
7. Winning bidder: shall be recognized by the provisions of the regulations according to the mobile communications network business of Subparagraph 4.
8. Service provider: the entity which the NCC has granted the right to engage in the business.
9. Subscriber: a user who registers or enters a contract with a service provider to use the business provided by the service provider.
10. Outdoor base station (OBS): the antennas primarily for subscribers to access outdoors.
11. Indoor base station (IBS): the antennas primarily for subscribers to access indoors.
12. Micro cell base station: refers to a base station with maximum RF output power from its transmitter within the 1.26 Watt to 7.94 Watt range.
13. Important public construction: refers to high speed rail, railway, mass rapid transit, freeways, highways, airports, harbors, tunnels, or other public constructions used by the public with a certain scale and with the verification of other authorities.
14. Effective isotropically radiated power (EIRP): the product of the net RF power of every carrier wave from an emitter transferred to the antenna and the antenna gain.
15. Co-site: base stations established at the same site by service providers.
16. Co-construction: an installed base station sharing either the antenna, the baseband unit, the radio unit, or the pole with the provider of the same or different mobile service.
17. Spatial Iron Tower Base Station: refers to base stations with iron towers or iron pillars over nine meters in height placed on empty space and attached with antenna and radio frequency equipment.