doc.: ieee 15-04-0482-02-004b submission sept. 2004 hyungsoo lee, cheolhyo lee, jaeyoung kim,...
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Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 1
doc.: IEEE 15-04-0482-02-004b
Submission
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: [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:[[email protected], clee7@ etri.re.kr, [email protected]]
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: [Contribution 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.
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 2
doc.: IEEE 15-04-0482-02-004b
Submission
860~960MHz Band Analysis for IEEE 802.15.4 in Korea
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 3
doc.: IEEE 15-04-0482-02-004b
Submission
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
PAGER
BroadcastingRelayMobile
Phone
942
952
960
AirportComm.
WirelessData
Comm.
CordlessPhone (CT-
1)
Cordless
Phone
WirelessMicrophone
950928
WirelessData
Comm.940
CT-2
959894 908.5900
Safety Comm.
902
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 4
doc.: IEEE 15-04-0482-02-004b
Submission
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
908.5~914MHz band assignment of Korea Plan to assign 908.5~914MHz to RFID in order 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.
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 5
doc.: IEEE 15-04-0482-02-004b
Submission
Review of RFID System Considering in Korea
Frequency band : 908.5~914 MHz Power of Reader : Below 1W Frequency band : 27 channels
(200KHz bandwidth/channel)
Reader
TagP=1W
F Gr=6dBi 1
908.5
908.7MHz 913.9MHz
200KHz914MHz
2 3 4 2726……
5.4MHz
RFID System
RFID Frequency Band
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 6
doc.: IEEE 15-04-0482-02-004b
Submission
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- Case 1 : 0.6MHz band/channel- Case 2 : 1MHz band/channel- Assignment of Maximum 8 channels
600KHz
908.5MHz 914MHz
CH1
CH81MHz
CH1
CH5
Case1
Case2
Korea908.5~914MHz1.2MHz
902MHz906
908 910 912 914 916 918 920 922 924
2MHz
CH1 CH10928MHz
Sept. 2004
Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRISlide 7
doc.: IEEE 15-04-0482-02-004b
Submission
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 North America specifications With Europe specifications
Research for interference analysis of sharing frequency band by Korean Home Network Study Group started from May 2004
Note : ETRI would like to acquire the document related with reviewing interference and sharing frequency in other countries