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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Technical requirements of Japanese regulation for 950MHz low power active radio systems Date Submitted: March 12th, 2009 Source: [Kiyoshi Fukui], Company [Oki Electric Industry Co., Ltd.]

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Technical requirements of Japanese regulation for 950MHz low power active radio systems Date Submitted: March 12th, 2009 Source: [Kiyoshi Fukui], Company [Oki Electric Industry Co., Ltd.] Contact: Kiyoshi Fukui, Oki Electric Industry Co., Ltd. Voice: +81 6 6260 0700; E-Mail: fukui535@oki.com; Re: Abstract: Presentation of technical requirements for 950 MHz low power radio systems. Purpose:To encourage discussion. Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Kiyoshi fukui, OKI

  2. Technical requirements of Japanese regulation for 950 MHz low power active radio systems Kiyoshi Fukui OKI Kiyoshi fukui, OKI

  3. General conditions • Communication method • One-way method, simplex method, duplex method, semi-duplex method, or broadcast • Contents of communications • Primarily the signals for telemeter, telecontrol, and data transmission system. • Modulation system • Not specified. • Operating Frequency band • 950 MHz – 956 MHz • Usage environment condition • Not specified. Kiyoshi fukui, OKI

  4. Transmitter (1/5) • Antenna power (at antenna connector) • 1mW or less • Exceptionally, allowed to be 10mW or less for radio channels consisting of only unit radio channel which center frequencies are from 954.2MHz to 954.8MHz • Tolerance of antenna power • Upper bound: 20%, Lower bound: -80% • Frequency tolerance • Within 20 x 10-6 • Modulation method • Not specified. • Occupied frequency bandwidth • Less than (200 x n) kHz (n is integer from 1 to 3) Kiyoshi fukui, OKI

  5. Transmitter (2/5) • Radio channel • Up to 3 consecutive unit radio channels • Unit radio channels are defined that their center frequency are located from 951.0MHz to 955.6MHz with 200kHz separation and their bandwidth are 200kHz. For 1mW For 10mW Kiyoshi fukui, OKI

  6. Transmitter (3/5) • Adjacent channel leakage power • Level of channel edge: 20dBc • Leakage power of adjacent channel: less than -26dBm for 1mW case less than -18dBm for 10mW case 1mW case (200 x n) kHz Kiyoshi fukui, OKI

  7. Transmitter (4/5) • Adjacent channel leakage power 10mW case (200 x n) kHz Kiyoshi fukui, OKI

  8. Transmitter (5/5) • Spurious emission strength (at antenna connector) • f <= 1000MHz -36dBm/100kHz (except for 710MHz < f <= 960MHz) • 710MHz < f <= 945MHz -55dBm/MHz • 945MHz < f <= 950MHz -55dBm/100kHz • 950MHz < f <= 956MHz -39dBm/100kHz (except for |f-fc|<= 200+100x(n-1)kHz) • 956MHz < f <= 958MHz -55dBm/100kHz • 958MHz < f <= 960MHz -58dBm/100kHz • 1GHz < f -30dBm/MHz (except for 1884.5MHz < f <= 1919.6MHz) • 1884.5MHz < f <= 1919.6MHz -55dBm/MHz Kiyoshi fukui, OKI

  9. Receiver (1/1) • Conducted spurious component at receiver • f <= 1000MHz -54dBm/100kHz (except for 710MHz < f <= 960MHz) • 710MHz < f <= 945MHz -55dBm/MHz • 945MHz < f <= 950MHz -55dBm/100kHz • 950MHz < f <= 956MHz -54dBm/100kHz • 956MHz < f <= 958MHz -55dBm/100kHz • 958MHz < f <= 960MHz -58dBm/100kHz • 1GHz < f -47dBm/MHz (except for 1884.5MHz < f <= 1919.6MHz) • 1884.5MHz < f <= 1919.6MHz -55dBm/MHz Kiyoshi fukui, OKI

  10. Controller (1/4) • Sending control • 10 ms carrier sense • Radio equipment shall stop its emission of radio signal within 1s after it starts to emit. It shall wait 100 ms or more for the consecutive emission. • However, it may emit again without waiting 100ms, if it is within 1 s after its first emission and the emission is finished within this 1 s interval. • 128 us carrier sense • Radio equipment shall stop its emission of radio signal within 100 ms after it starts to emit. It shall wait 100 ms or more for the consecutive emission. The amount of sending time summed for 1 hour shall be 360 s or less. • However, it may emit again without waiting 100 ms, if it is within 100 ms after its first emission and the emission is finished within this 100 ms interval. • No carrier sense • Radio equipment shall stop its emission of radio signal within 100 ms after it starts to emit. It shall wait 100 ms or more for the consecutive emission. The amount of sending time summed for 1 hour shall be 3.6 s or less. • However, it may emit again without waiting 100 ms, if it is within 100 ms after its first emission and the emission is finished within this 100 ms interval. • Comments • Duty cycle is specified by each node, not by each carrier sense mode. • Duty cycle is specifie1d in arbitrary 1 hour period, not in previous 1 hour period. Kiyoshi fukui, OKI

  11. Controller (2/4) • Carrier sense (Energy detection) • Radio equipment shall check the interference existence by the carrier sense procedure before its new transmission. • Career sense shall be done to all of the unit radio channels including its emitted signal. • Carrier sense time shall be 128 us or more when the antenna power is 1mW or less. • Carrier sense time shall be 10ms or more when the antenna power is more than 1mW. • Carrier sense level that is amount of received power at all of unit radio channels including its emitted signal shall be -75dBm at the antenna input. • Carrier sense is not necessary if both of the conditions below are satisfied. • Antenna power is 1mW or less • It complies with the sending control for no carrier sense case. Kiyoshi fukui, OKI

  12. Controller (3/4) • This table shows possible combination of sending control and carrier sense time. Kiyoshi fukui, OKI

  13. Controller (4/4) • Interference protection • Radio equipment shall have a function that can send or receive identification code. • Comment • The detail of ‘Identification code’ in this term is not specified. Short address of IEEE802.15.4 is OK. Kiyoshi fukui, OKI

  14. Antenna • Antenna gain • Less than 3dBi. • However, in case EIRP is less than the value 3dBi added by the above defined maximum antenna power, it is allowed to compensate the difference by the antenna gain. • For example • When the measured antenna power is 6dBmthen antenna gain is allowed to be increased up to 7dBi. Kiyoshi fukui, OKI

  15. Reference: Operational Guidelines (1/3) 1. Overview 1.1 Purpose The purpose of this operational guideline is to avoid the harmful interferences to other neighboring systems or other specified low power radio stations and to achieve the efficient usage of radio and to provide the user convenience when operating 950MHz-band telemeter, telecontrol and data transmission radio equipment for specified low power radio station (call it ‘specified low power radio station’ below) 1.2 Scope of application This operational guideline is applied to user and agency of manufacture and distributor, constructor, operator and agency of maintenance of specified low power radio station. 1.3 Target system The target system of this operational guideline is following. (1) 950MHz-band telemeter, telecontrol and data transmission radio equipment for specified low power radio station: ARIB STD-T96 Kiyoshi fukui, OKI

  16. Reference: Operational Guidelines (2/3) 2. Avoiding interference It is desirable that the radio station specified in this standard does not use channel 7, 8, 9, 10, 11, 12, 13, 14 and 15 in consideration of the interference received from the premises radio station specified by STD-T89. If channel 8 or channel 14 is used by premises radio station employing sub-carrier method, it is desirable that the radio station specified in this standard does not use channel 7 and 9 or channel 13 and 15 as much as possible in consideration of the interference given to the premises radio station because these channels are used by very weak response signals of the passive tag. Appendix table 1 shows the channel plan of “950MHz-band RFID equipment for premises radio station”, “950MHz-band RFID radio equipment for specified low power radio station” and “950MHz-band telemeter, telecontrol and data transmission radio equipment for specified low power radio station”. Kiyoshi fukui, OKI

  17. Reference: Operational Guidelines (3/3) 3. Influence to medical equipments To avoid the influence to medical equipments, it is desirable to act properly according to the guideline of action described in “Study Report on the Effect of Radio Waves on Medical Devices”(Note1). (Note1): When issuing version 1.0 of this standard (6th June, 2008), it indicates the report issued by MIC on March, 2004. However, when it is revised, it indicates the latest version. 4. Protection of privacy For protection of privacy, it is desirable to act properly according to “Guidelines for Privacy Protection with Regard to RFID Tags”(Note2). (Note2): When issuing version 1.0 of this standard (6th June, 2008), it indicates the guideline issued by MIC and METI on 8th June, 2004. However, when it is revised, it indicates the latest version. Kiyoshi fukui, OKI

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