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11ah Channelization of Korea

11ah Channelization of Korea. Date: November 7 , 20 11. Author: . Abstract. In this submission, we propose a minor change of 11ah channelization of Korea: Shift right by 0.5 MHz the current whole channelization graphic for Korea. 917 [MHz]. 923. 1 MHz. Current:. 2 MHz. 4 MHz.

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11ah Channelization of Korea

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  1. 11ah Channelization of Korea Date:November7, 2011 Author:

  2. Abstract • In this submission, we propose a minor change of 11ah channelization of Korea: • Shift right by 0.5 MHz the current whole channelization graphicfor Korea 917 [MHz] 923 1 MHz Current: 2 MHz 4 MHz Shift by 0.5 1 MHz Proposed: 2 MHz 4 MHz 917.5 [MHz] 923.5

  3. S1G Unlicensed band in Korea • The unlicensed band 917 MHz – 923.5 MHz is assigned for • RFID devices and Wireless Sensor Networks. • RFID (Radio Frequency IDentification) and USN (Ubiquitous Sensor Network) must share the spectrum in 917 MHz – 923.5 MHz in Korea • IEEE802.11ah belongs in the same category as USN in Korea Slide 3

  4. Channel plan for RFID in 917 – 923.5MHz • 917 – 920.6 MHz • RFID which uses DRM(Dense Reader Mode) has priority • Channel spacing : 600 KHz (CH 2, 5, 8, 11, 14, 17) • Occupied bandwidth ≤ 200 KHz, Maximum Power : 4W EIRP • Frequency offset tolerance : ± 10 ppm • 920.6 – 923.5MHz • Occupied bandwidth ≤ 200 KHz, Maximum Power : 200mW EIRP Slide 4

  5. Sharing conditions for RFID and USN • Channel plan for USN • Occupied bandwidth: No restriction (≤ 6.5MHz ) • Frequency offset tolerance: ±40 ppm • Maximum Power: 10 mW EIRP except RFID tag channels,3 mW EIRP in RFID tag channels • RFID tag channels : CH 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 16, 18 • Sharing conditions for RFID and USN • LBT (Listen Before Transmission) • Carrier sensing time ≥ 5 ms • Carrier sensing level = -65dBm • Transmission duration ≤ 4 second • Pause duration ≥ 50 ms • Duty Cycle: • Below 2% in 20 sec duration Slide 5

  6. Proposal and Rationale • Proposed channelization gives us one more DRM RFID channel avoidance for all cases of 1/2/4 MHz CH 2 additionally avoided for 1, 2 MHz 1 MHz Proposed: 2 MHz CH 11 additionally avoided for 4 MHz 4 MHz Shift by 0.5 917.5 MHz 923.5 MHz Slide 6

  7. Motion 1 • Do you support the revised channelization of Korea as follows? • Shift right by 0.5 MHz the current whole channelization graphicfor Korea 917 [MHz] 923 1 MHz Current: 2 MHz 4 MHz Shift by 0.5 1 MHz Proposed: 2 MHz 4 MHz 917.5 [MHz] 923.5

  8. References [1] IEEE 802.11-11/1329r1, Motions and SP on Channelization for 11ah [2] IEEE 802.15-10/0505r0, Potential Channel Plan for TG4g SUN in Korean 900MHz band Slide 8

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