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S1G Spectrum Regulations Outside the US

S1G Spectrum Regulations Outside the US. Authors:. Date: 2011-05-09. Slide 1. Outline. S1G spectrum available in the US (26MHz) is much larger than other countries (and allows higher transmission power)

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S1G Spectrum Regulations Outside the US

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  1. S1G Spectrum Regulations Outside the US Authors: Date: 2011-05-09 Ron Porat, Broadcom Slide 1

  2. Outline • S1G spectrum available in the US (26MHz) is much larger than other countries (and allows higher transmission power) • We present our current understanding of available spectrum and channelization outside the US Ron Porat, Broadcom Slide 2

  3. Korea • Frequency band: 917 ~ 923.5 MHz (6.5 MHz) • RFID and USN(Ubiquitous Sensor Network) share the band • Transmit signal center frequency Ron Porat, Broadcom Slide 3

  4. Cont. (1) • Max EIRP ≤ 10 mW except Ch#1,3,4,6,7,9,10,12,13,15,16,18 • Max EIRP ≤ 3 mW for Ch#1,3,4,6,7,9,10,12,13,15,16,18 • Channel bandwidth: no restriction • Occupied channel bandwidth within 917 ~ 923.5 MHz • High power RFID share the band • Ch#2,5,8,11,14,17: max EIRP ≤ 4W • Ch#20~32: max EIRP ≤ 200 mW 10 mW 3 mW Channel number: 1 3 4 6 7 9 10 12 13 15 16 18 32 19 917 MHz 923.4 MHz Ron Porat, Broadcom Slide 4

  5. Cont. (2) • Channel sharing • Frequency hopping (FH): • Number of hopping channels ≥ 16 • Dwell time in one channel ≤ 0.4 sec • Listen Before Transmission (LBT): • Minimum sensing time ≥ 5 msec • CCA threshold: -65 dBm • Maximum transmission on-time ≤ 4 sec • Minimum transmission off-time after transmission ≥ 50 msec • Techniques other than FH and LBT • Duty cycle ≤ 2% for 20 sec period of time Ron Porat, Broadcom Slide 5

  6. China • Information from the Office of State Radio Regulatory Commission of the People’s Republic of China (SRRC) website [2] • For 470~510 MHz and 779~787 MHz bands: • Wireless microphone and civilian radio and other types of equipment, measuring instruments • Frequency :470-510MHz ,630-787MHz  • Transmission power limit: 50mW (erp)  • Occupied bandwidth: less than 200kHz • Frequency tolerance: 100 × 10 -6 • All kinds of consumer devices in the wireless control device  • Not be used for wireless control toys, model.  • Frequency :779-787MHz (8 MHz) • Transmission power limit: 10mW (erp)  Ron Porat, Broadcom Slide 6

  7. Japan • Based on [3], the current band is 950.8-957.6MHz (1mW max power or 10mW from 954MHz) • High power RFID (0.25W) share the band • Channelization is based on 200KHz element channels. Up to 1MHz signal BW allowed (5 channels). This is a recent increase from a maximum of 3 channels. • Mask for 1MHz channel operating at 10mW requires -39dBr 600KHz away from band edge (tighter than WiFi) • Based on discussions with author of [3], by the end of the year the spectrum will move to roughly 916-930MHz while still maintaining 1MHz limit. Ron Porat, Broadcom Slide 7

  8. Europe • Transmission in 863-870MHz band is allowed with up to 14dBm with PSD limit. • Unclear whether 868.6-870MHz needs to be avoided due to operation of alarms in this band. Ref [4] and [5] contradict each other. • High power RFID (2W) share the band 865-868MHz (hence allowing much higher PSD) • Duty cycle limitation of 2.8% for a given 200KHz (max 100sec transmission in 1 hour) • PSD limit is enforced in 3 different ways [4]: • Unclear whether larger than 0.6MHz channels with PSD>-0.8dBm/100KHz is allowed (while still maintaining total max power of 14dBm) Ron Porat, Broadcom Slide 8

  9. Conclusions • Channelization BW is quite limited outside the US and will most likely occupy the lowest end of our design. • About 7MHz is available throughout Europe, China, Japan and Korea with restrictions on channel BW. • 1MHz is the limit for Japan • Need to consider spectral masks requirements since they may be tighter than current 802.11 • Need to verify regulations before committing to specific designs Ron Porat, Broadcom Slide 9

  10. References [1] KCC Notice No. 2010-48 : Rules of Radio Equipment, Dec 17, 2010 [2] http://www.srrccn.org/srrc-approval-new2.htm [3] 15-10-0180-01-004g-current-status-of-japanese-regulatory-changes-regarding-950mhz-band.pdf [4] EN 300 220 [5] REC7003E.pdf Ron Porat, Broadcom Slide 10

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