1. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 1 Preparation of PAR and 5 Criterion addressing Japans 4.9-5GHz bands in September, 2002 Peter Ecclesine, Cisco Systems and Yasuhiko Inoue, NTT with much assistance from Kazuhiro Okanoue, NEC

2. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 2 Background to date 11-02/480r3 Preparation of PAR and 5 Criterion addressing Japans 4.9-5GHz bands described situation in July, 2002 The Japanese Ministry published rules for the use of the bands on August 6 th and 7 th, 2002 and slides 4-13 of this presentation summarize the requirements Discussion points and actions are presented in slides 14-16. A draft PAR and Five Criterion accompany this presentation.

3. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 3 IEEE 802.11 paragraphs.11a 17.3.2.8.2 Regulatory Requirements 17.3.2.8.3 Operating Channel Frequencies – minimum rate by channel 17.3.2.8.4 Transmit and receive in-band and out-of-band spurious emissions 17.3.9.1 Transmit power levels 17.3.9.2 Transmit spectrum mask – and EIRP limits for adjacent and co- adjacent channels 17.3.10.5 CCA Sensitivity.11d 7.3.2.12 Country Information Element – Maximum Transmit Power Level – or EIRP in Japans 4.9GHz and 5.0GHz 9.9 Operation across Regulatory Domains – IBSS prohibition may need new attribute

4. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 4 Channelization 4.904.924.944.964.985.00 [GHz] 5.035.045.065.085.091[GHz] http://www.soumu.go.jp/s_news/2002/pdf/020611_3_01.pdf

5. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 5 Transmission equipment (1) Frequency tolerance: +/- 20*10 -6 or less Maximum Transmission Power –250mW or less AND 50mW/MHz or less –Total transmission power is 250mW or less Transmission power tolerance –Upper limit: +20%, Lower limit: -80% fc+/-10MHz Total power shall be 250mW or less fc ( = 4.92, 4.94, 4.96, 4.98, 5.04, 5.06, 5.08 GHz) Technical committee report, http://www.soumu.go.jp/s_news/2002/pdf/020611_3_02.pdf

6. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 6 Transmission equipment (2) Adjacent channel emission –Maximum value of absolute radiated power at antenna is regulated. -3dBm or less for fc+20-9 < f < fc+20+9 and fc-20-9 < f < fc-20+9 [MHz] -18dBm or less for fc+40-9 < f < fc+40+9 and fc-40-9 < f < fc-40+9 [MHz] fc+20MHz fc-20MHz fcfc+40MHzfc-40MHz 9MHz -3dBm or less -18dBm or less fc+40MHz -18dBm or less -3dBm or less 9MHz Technical committee report

7. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 7 Outband emission For 4.9GHz band system, EIRP should be –15 W/MHz or less for 4880 frequency(f) < 4900MHz –15 W/MHz or less for 5000 < f 5020MHz For 5.0GHz band system, EIRP should be –15 W/MHz or less for 5000 frequency(f) < 5020MHz –0.5mW/MHz or less for 5020 f < 5030MHz –0.5mW/MHz or less for 5091 < f 5100MHz –15 W/MHz or less for 5100 < f 5120MHz Technical committee report

8. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 8 Upper limit of spurious For 4.9GHz band system, EIRP should be –2 W/MHz or less for frequency(f) < 4870MHz –2.5 W/MHz or less for 4870 f < 4880MHz and 5020 < f 5270MHz –0.2 W/MHz or less for 5270 < f 5342MHz –1 W/MHz or less for 5342MHz < f For 5.0GHz band system, EIRP should be –2 W/MHz or less for frequency(f) < 4990MHz –2.5 W/MHz or less for 4990 f < 5000MHz and 5120 < f 5270MHz –0.2 W/MHz or less for 5270 < f 5342MHz –1 W/MHz or less for 5342MHz < f http://www.soumu.go.jp/s_news/2002/pdf/020611_3_02.pdf

9. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 9 Outband emission and spurious (graphical) in-band 4.9GHz system 5.0GHz system

10. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 10 Transmission rate Transmission systems using 4.92, 4.94 and 5.04GHz –shall communicate at the rates of 5Mbps or more and have capability that can communicate at the rate of 10Mbps or more. Transmission systems using 4.96, 4.98, 5.06 and 5.08GHz –shall communicate at the rates of 10Mbps or more and have capability that can communicate at the rate of 20Mbps or more. http://www.soumu.go.jp/s_news/2002/pdf/020611_3_02.pdf

11. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 11 Carrier sense Radio equipment shall quit its transmissions, when the equipment detects electrical filed intensity, E, transmitted from other equipment than its correspondent larger than G: antenna gain (linear value) Pt: transmission power [W] n: 20 for 20MHz system Radio equipment shall start its transmissions after carrier sense, except the following conditions: –equipment of which transmission and reception are controlled by other equipment and –transmissions within 4msec after the carrier sense. http://www.soumu.go.jp/s_news/2002/pdf/020611_3_02.pdf Radio equipment shall have carrier sense mechanism for band sharing

12. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 12 Transmission antenna gain 10dBi or less When EIRP is less than power of 250mW transmission power plus 10dBi antenna gain, EIRP can be compensated by additional antenna gain. http://www.soumu.go.jp/s-news/2002/020507_1.html

13. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 13 Other requirements Subscriber shall communicate with only base stations (access points) and select frequency channel based on the base station control. (This means that ad-hoc mode (IBSS) is prohibited) Following requirements are assumed; –base stations shall be licensed and –subscriber can be un-licensed. (802.11a compliant subscribers are categorized into un-licensed subscriber) http://www.soumu.go.jp/s-news/2002/020507_1.html

14. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 14 Discussion Points To confirm OFDM PHY can satisfy the new Japanese regulation –It could be OK, because technical committee considered the proposal based on IEEE 802.11a spec. However, it is important for IEEE 802.11 to confirm the spec. To decide channel IDs for 4.9-5.0GHz band –Current 802.11a defines channel ID for band 5.0-6.0GHz. It is important to define standardized channel ID for 4.9-5.0GHz band for interoperations. To handle 4msec carrier sense rule –The Japanese regulation requires for all equipment to sense carrier every 4msec. The rule could make several impacts for IEEE 802.11 spec such as maximum PCF duration may be limited to 4msec fragmentation length may be limited to 4msec any other? –It is discussion point to be standardized or not. To handle IBSS prohibit rule –It is discussion point to define new standardized mechanism or not. –(I think no new mechanisms will be required. The country and frequency information available in the MAC should be sufficient to prevent people from starting IBSS.)

15. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 15 The WNG Motion Move to have WNG move that the 802.11 Working Group forward to the 802 exec for approval 802.11-02/xxxr0 PAR and 802.11-02/xxyr0 Five Criteria to extend 802.11, 802.11a and 802.11d to the Japanese 4.9GHz-5GHz bands

16. doc.: IEEE 802.11-02/533r0 Submission September 2002 Peter Ecclesine, Cisco Systems et alSlide 16 The WNG motion: to bring the following motion to the WG Move to have the Working Group confirm 802.11- 02/xxxr0 PAR and 802.11-02/xxyr0 Five Criteria to extend 802.11, 802.11a and 802.11d, as necessary, to the Japanese 4.9GHz-5GHz bands, And to forward them for approval at the November 2002 IEEE 802 Plenary