5GWLAN

Quasi-millimeter band low-power data communication system
(Item 19-4 of Article 2 Paragraph 1 of Certification Ordinance)

Items

Technical standard

Assigned frequency or designated frequency

24.77GHz to 25.23GHz
27.02GHz to 27.46GHz

Number of channels or channel separation

92
10MHz separation

Tolerance of frequency (×10^-6)

Tolerance of occupied bandwidth

18+20(n-1) MHz
(n: The number of unit ratio channels used at the same time as a single radio channel )

Tolerance of unwanted emission intensity

1μW/MHz for below 24.705GHz, over 25.295 to below 26.955GHz, and over 27.525GHz

Antenna power

(1)	OFDM 10mW/MHz or less when the number of unit radio channels is three (3) or less 10mW or less when the number of unit radio channels is four (4) or more
(2)	Others (See the Note.) 10mW or less

Tolerance : +20%,-80%

Tolerance of adjacent channel leakage power and out-band leakage power

Adjacent channel leakage powoer
	In ±9MHz band at 20+10(n-1) MHz detuning : Lower than carrier level by 25dB or more In ±9MHz band at 40+10(n-1) MHz detuning : Lower than carrier level by 40dB or more (n: The number of unit radio channels used at the same time as a single radio channel )
Out-band leakage power (EIRP) :
	Refer to Attached Table.

Limit of secondary radiated emissions

(1) Below 1GHz : 4nW or less
(2) 1GHz or higher : 20nW or less

Interference prevention function

Shall have the function to transmit or receive identification code automatically.

Carreir sensing function

Shall not transmit radio wave when the field strength is over 460mV/m

Transmission burst length

4milli-seconds or less

Note

OFDM : Orthogonal frequency division multiplexing
Others : Amplitude modulation, Phase modulation, Frequency modulation, Pulse modulation or combination system od modulation methods.

Attached Table : Out-band leakage power (EIRP)

Items	Technical standard
24.705 to below 24.74GHz 24.74 to below 24.75GHz Over 25.25 to 25.26GHz Over 25.26 to 25.2295GHz 26.955 to below 26.99GHz 26.99 to below 27GHz Over 27.48 to 27.49 GHz Over 27.49 to 27.525 GHz	1μW/MHz or less 16μW/MHz or less 16μW/MHz or less 1μW/MHz or less 1μW/MHz or less 16μW/MHz or less 16μW/MHz or less 1μW/MHz or less

Notice: Regulations in the Ordinance Regulating Radio Equipment shall have priority over the descriptions in the sheet when any difference is found between them. Further above descriptions do not cover all of the regulations.