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

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

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Project ieee p802 15 working group for wireless personal area networks wpans 5319708

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.

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


860 960mhz band analysis for ieee 802 15 4 in korea

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

Safety Comm.

CT-2

Wireless

Data Comm.

869

898

902

910

915

924.45

930

940

942

960

TRS

Mobile

Phone

P

A

G

E

R

Broadcasting

Relay

900

894

908.5

914

851

866

923.55

928

938

950

952

959

Wireless

Data Comm.

Airport

Comm.

Cordless

Phone (CT-1)

Cordless

Phone

Wireless

Microphone

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

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


Analysis of available frequency band

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.

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


Review of rfid system considering in korea

RFID System

RFID Frequency Band

908.7MHz

913.9MHz

Tag

P=1W

1

2

3

4

26

27

……

Gr=6dBi

F

Reader

914MHz

908.5

200KHz

5.4MHz

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)

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


Utilization methods of 908 5 914mhz

Korea

2MHz

1.2MHz

908.5~914MHz

906

908

910

912

914

916

918

920

922

924

902MHz

CH1

CH10

928MHz

CH1

CH8

1MHz

CH1

CH5

908.5MHz

914MHz

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

Case1

Case2

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


Summary

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

Hyungsoo Lee, Cheolhyo Lee, Jaeyoung Kim, ETRI


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