doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 1 Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Possible License Exempt Spectrum for g in China Date Submitted: [The date the document is contributed, in the format “21 May, 1999”] Source: [Ben Rolfe] Company [Blind Creek Associates] Address [] Phone: [ ] E-Mil: [Qin Wang], Company [University of Science & Technology Beijing/ Shenyang Institute of Automation- Chinese Academy of Sciences] Address [30 Xueyuan Road, Beijing , China] Phone: [ ], FAX: [ ], Re: Request from TG4g for information on relevant regulations in China Abstract:Discussion of what bands may be available for SUN in China Purpose:Support TG4g Notice:This document has been prepared to assist the IEEE P 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 P

doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 2 Possible License Exempt Spectrum for g in China

doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 3 General With reference to “General micro-power short range devices” tables [ g] Generally very low power (< 20mW) Most low freq. channels do lot allow the BW for 40kbps Tables don’t show “everything allowed” –Shows what has been allowed and used –“ask and they’ll tell you” May be positive response to TG4g

doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 4 Some bands to look at 75 MHz, MHz, MHz –10mW, < 200KHz BW channels –Wireless microphones? MHz –10mW, < 400KHz BW (2 bands) –10mW < 400KHz BW MHz –50mW, < 200KHz BW ( c) –10mW (15.4c Annex J: PSD -20dBm/20dB PAR)

doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 5 Future ‘Informally’ interest in SUN and SG technology Informal information: Chinese government may consider to open spectrum if necessary and possible When TG4G figures out which spectrum we wish to use and how, more formal discussions are possible

doc.: IEEE g Possible License Exempt Spectrum for g in China 12 March 2009 B. Rolfe, Q. WangSlide 6 Thank You