Sept. 2004 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [860~960MHz Band Analysis for IEEE 802.15.4 in Korea] Date Submitted: [07 Sept., 2004] Source: [Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim] Company [ETRI] Address [161 Gajeong-dong, Yuseong-gu, Daejeon, 305-350, KOREA] Voice:[+82 42 860-5620], FAX: [+82 42 860-5218] E-Mail:[hsulee@etri.re.kr, clee7@ etri.re.kr, jyk@etri.re.kr] Re: [ ] Abstract: [This document presents frequency band overview for 860~960 MHz frequency band and suggests a proposal of frequency utilization for the IEEE 802.15.4] Purpose: [Proposal to IEEE 802.15.4b Task Group] 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. Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI

860~960MHz Band Analysis for IEEE 802.15.4 in Korea Sept. 2004 860~960MHz Band Analysis for IEEE 802.15.4 in Korea Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI

Utilization of 860~960 MHz Band in Korea <month year> doc.: IEEE 802.15-<doc#> Sept. 2004 Utilization of 860~960 MHz Band in Korea No ISM band between 860~960 MHz in Korea 868~868.6MHz : Airport Communication Service 902~928MHz : CT-1, CT-2, Safety Service, Pager CT-2 service : returned frequency license No problem using 2.4 GHz for IEEE 802.15.4 because it is ISM band 851 866 869 898 910 914 915 923.55 924.45 930 938 TRS P A G E R Broadcasting Relay Mobile Phone 942 952 960 Airport Comm. Wireless Data Comm. Cordless Phone (CT-1) Microphone 950 928 940 CT-2 959 894 908.5 900 Safety Comm. 902 Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI <author>, <company>

Analysis of Available Frequency Band Sept. 2004 Analysis of Available Frequency Band Possible analysis scenarios Scenario 1 : Reallocation of unused CT-2 frequency band Total band : 908.5~914MHz CT-21) band : 910~914MHz Use adjacent guard band : 908.5~910MHz Scenario 2 : Frequency sharing of Low Power Device Sharing with Wireless Microphone band : 928~930MHz and 950~952MHz Korean Government Plan to assign 908.5~914MHz frequency band to motivate RFID industries at the end of 2004 1) CT-2 : Cordless Telephone (second generation). A type of "public" cordless telephone that is connected by TDMA radio links to nearby, microcell base stations. CT-2 is most often used as a wireless payphone. Receiving calls is not possible. Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI

Review of RFID System Considering in Korea Sept. 2004 Review of RFID System Considering in Korea Frequency band : 908.5~914 MHz Power of Reader : 1W Frequency band : 27 channels (200KHz bandwidth/channel) Reader Tag P=1W fa Gr=6dBi 1 908.5 908.7MHz 913.9MHz 200KHz 914MHz 2 3 4 27 26 …… 5.4MHz RFID System RFID Frequency Band Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI

Utilization Methods of 908.5~914MHz Sept. 2004 Utilization Methods of 908.5~914MHz Proposal of adapting North America specifications to IEEE 802.15.4 in Korea Assignment of two channels Another solution Proposal of Europe specifications which enable to increase channels Assignment of Maximum 8 channels Korea 908.5~914MHz 1.2MHz 902MHz 906 908 910 912 914 916 918 920 922 924 2MHz CH1 CH10 928MHz 600KHz 908.5MHz CH1 914MHz CH8 Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI

Summary Possibility to share frequency : Two scenarios Sept. 2004 Summary Possibility to share frequency : Two scenarios Sharing with RFID band Sharing with Wireless Microphone band Review of applying appropriate specifications to IEEE 802.15.4 With United States specifications With European specifications Research for interference analysis of sharing frequency band by Korean Home Network Study Group started from May 2004 Note : ETRI need cooperation to acquire the document related with reviewing interference and sharing frequency in other countries Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI