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4 미약무선기기 (3 미터 ) 무선조정기 (500 미터 ) 소출력무선기기 코드리스전화기 데이터전송용 무선호출용 특정소출력무선기기 무선데이터통신및무선 LAN 용 무선마이크용 무선조정및안전시스템용 시각장애인용 단거리전용통신용

6 GHz ANSIBLE 5GHz PAN/LAN Convergence HIPERLAN/ a 2.4GHz HIPERLAN/ b HIPERPAN Application space Ubiquitous TV Infotainment Virtual Homes Video Streaming 80x 1 0,1 0, Bluetooth HSCD HomeRF GPRS EDGE 4 years 3GPP GHz Video data rate Still Imaging High Speed Internet Audio Streaming Text Messaging product date Local Area WLAN Nomadic Wide Area Cellular Vehicular PAN Voice

11 μ μ μ μ μ μ μ μ

12 μ

23 주파수무선 LAN 무선 LAN 외의무선기기통신설비이외의전파이용기기 2.4GHz (2400 ~ MHz) FHSS DSSS - Wi-Fi(802.11b) CCK g(OFDM)* 논의중 * 한국 ( 주파수용도 : 무선데이터전송용 ) - Blue-tooth - Home RF - Home RF (WBFH) - Proprietary cordless phones - Proprietary vertical applications (Non-Specific Short Range Device) - Radio Fixed Access (shared internet access, UK) - Microwave ovens - Heating device *ISM Applications - RR S1.15 excluding applications in the field of telecommunication RF 입력신호 주파수합성기 Partition Mapping ( 새로운호핑주파수 ) 새로운직교코드 ( 채널상태파악 ) 호핑주파수발생기 Hop Clock

24 ISM 대역 (Examplie : Microwave ovens) 새로운소전력데이터고도화전송용주파수 기존무선 LAN 용주파수 기존이동체식별장치용주파수 이동위성서비스용주파수 (MHz)

25 항목운영주파수중심주파수변조방식전송속도송신전력통신방식점유주파수대폭 기술적조건 5.15 ~ 5.25GHz 5.17GHz, 5.19GHz, 5.21GHz, 5.23GHz Orthogonal Frequency Division Multiplexing Direct Sequence Spread Spectrum Amplitude Modulation, Phase Modulation, Frequency Shift Keying, Pulse Position Modulation, or Composite Methods as Stated above 20Mbps 이상 10mW 이하 Simplex, One Way, Semi-duplex, Duplex 18MHz 이하

27 백만달러 브릿지 년도

31 μ

38 μ μ μ μ μ μ

53 부록

57 π η η

62 Access Point (0,15) 25 mw WLAN Station (0,d) BT Master(1,0) Tx power 0 dbm PER % Total Packet Loss for b with BT Interference BT HV1 BT Slave(0,0) Tx Power 0 dbm Distance of WLAN station from BT slave in mtrs Interferer (0,d) 25 mw BT Master 0 dbm (0,0) (0,7) BT Slave Receiver 7 meters Probability of Packet Loss Total Packet Loss for BT with b Interference DM5 DM3 DH DM Distance of BT slave from WLAN source in mtrs

71 Modulation method p/4 shifted QPSK p/4 shifted QPSK Off-set QPSK Access method FDMA TDMA TDMA Duplex method FDD FDD FDD Multiplicity Transmission rate 9.6 kbps 32 kbps 32 kbps Receiver sensitivity(1) *1 (50WBER=3% Non-Diversity) Receiver sensitivity(2) *2 (50WBER=3% Diversity) Receiver thermal noise power at NF=8 db (Bandwidth) dbm dbm dbm dbm dbm dbm -128 dbm/6.25 khz -122 dbm/25 khz -122 dbm/25 khz Eb/No (BER=3%, fd=20 Hz) *1 12 db 12 db 12 db Required C/N * db 16 db 15.4 db Required C/I 13 db 12 db 12 db Tolerance interference power dbm/ 6.25 khz dbm/25 khz dbm/25 khz Antenna gain base station dbi dbi dbi Antenna gain land mobile station 4.65 dbi 4.65 dbi 4.65 dbi Antenna height base station 50 m 50 m 50 m Antenna height land mobile station 1.5 m 1.5 m 1.5 m Feeder loss (Base station RX) 4.5 db 4.5 db 4.5 db Occupied bandwidth 5.8 khz 24.3 khz 24.3 khz Channel separation 6.25 khz 25 khz 25 khz Noise figure 8 db 8 db 8 db Remark* 1 : The receiver sensitivity (1) was measured under the condition of the 20 Hz flat-fading and of BER = 3% by the receiver with NF = 8 db. Remark* 2 : The sensitivity (2) was measured with the same condition as the case of Remark *1. In this case the sensitivity with the antenna diversity was improved a few db in the equivalent NF of the receiver than the case without the diversity. Remark* 3 : External noise power was not considered in the Required C/N.

72 Modulation method 16-QAM M16-QAM RZ SSB Access method FDMA TDMA FDMA Duplex method FDD FDD FDD Multiplicity Transmission rate 16 kbps 64 kbps 19.2 kbps Receiver sensitivity (1) (50WABER=3% Anon-Diversity) Receiver sensitivity (2) (50W,BER=3%, Diversity) Receiver thermal noise power at NF=8 db (Bandwidth) dbm dbm dbm dbm dbm -128 dbm/6.25 khz -122 dbm/25 khz -128 dbm/6.25 khz Eb/No (BER=3%, fd=20 Hz) 14 db 14 db - Required C/Ni 18 db 18 db (SINAD 12 db) Required C/I 19 db 18 db 12 db Tolerance interference power dbm/ 6.25 khz dbm/25 khz dbm/6.25 khz Antenna gain base station dbi dbi dbi Antenna gain land mobile station 4.65 dbi 4.65 dbi 4.65 dbi Antenna height base station 50 m 50 m 50 m Antenna height land mobile station 1.5 m 1.5 m 1.5 m Feeder loss (Base station RX) 4.5 db 4.5 db 4.5 db Occupied bandwidth 5.8 khz 24.3 khz 5.8 khz Channel separation 6.25 khz 25 khz 6.25 khz Noise figure 8 db 8 db 8 db

Bluetooth

Bluetooth 무선기기명 (Certification Ordinance) 제품상세 MCA Radio equipment for land mobile or command 1) (Item 1-4of Article 2 station used for MCA land mobile communications (antenna power: 50W or less) 2) 3) 4) 5) 6)