ITU-R S.856 (2/) ; <' MHz 3 6-3 4!"# $# %&' ( ')' (* +,, -. / 2*3 4 5' 432B.5 432A.5 43A.5 5 &*6 ( * ' ' 7 89 ' : 433A.5 = = = 4 - > S
ITU-R S.856 ii.. (IPR) (ITU-T/ITU-R/ISO/IEC).ITU-R http://www.itu.int/itu-r/go/patents/en. (http://www.itu.int/publ/r-rec/en ) ( ) () BO BR BS BT F M P RA S RS SA SF SM SNG TF V :.ITU-R 2 ITU 2..(ITU)
ITU-R S.856 (2) ITU-R S.856 MHz 3 6-3 4 432B.5 432A.5 43A.5 433A.5 / MHz 3 6-3 4. 433A.5 432B.5 432A.5 43A.5 2.9 8.9 7.9. MHz 3 6-3 4 ( 27 ( 43A.5 ) 3 MHz 3 5-3 4 ( MHz 3 6-3 5 ( 432A.5 ) 27 3 27 3 ( ) 3 6-3 4 ( MHz MHz 3 6-3 4 3 2 ( ) 433A.5 432B.5 432A.5 43A.5 ( ( ) : (27 3 (pfd) MHz 3 6-3 4 %2 db(w/(m 2 4 khz)) 54,5 ( (
ITU-R S.856 2 ( ( ( ( ( MHz 3 6-3 4 ( 2 7 432A.5 43A.5 3 2 / MHz 3 6-3 4 433A.5 432B.5 432A.5 43A.5 2 2 3.. / - ( 3
3 ITU-R S.856 432B.5 432A.5 43A.5 433A.5 3 2. GHz 4.-3.75 ITU-R S.72 2 433A.5 432B.5 432A.5 43A.5. ITU-R S.72.. ITU-R S.72 3. 433A.5 432B.5 432A.5 43A.5.....(3 2 ) ITU-R S.72 3 2.... - ITU-R S.72 52.5 GHz 4-3,75..(4.2 ) 2 km 5 km 56.W 25/MHz 25.. km 5 2 3
ITU-R S.856 4..( ). ( ). ITU-R P.452.. :.(LoS) : khz 4/ 4. (p = 2%) ITU-R P.452-2 ΔN. 433A.5 432B.5 432A.5 43A.5.. ) ( e.i.r.p. º6 º4 º2 dbm) (khz 4 (km) 856-4. ITU-R P.452-3. ITU-R P.452
5 ITU-R S.856. : (6) (5) (ΔN) (α e ) :.( ) ITU-R P.452-2 RHorizon nominal = α ( h + h )/ 2 e imt (km). ( ) h imt m 3... 433A.5 432B.5 432A.5 43A.5.. : ITU-R P.452-2 2.." " :.4....( ).. 433A.5 432B.5 432A.5 43A.5.. ITU-R S.72 3 2. ( ) X ( ).. X. X 2.4 (9).ITU-R P.452-2 L.%2.. / pfd = E G m + G(ϕ) L log(λ 2 /4π) = 54.5 db(w/(m 2 4 khz)), and therefore IMT off-axis e.i.r.p. = {E G m + G(ϕ)} = L 86.83 dbw/4 khz = h
ITU-R S.856 6 : khz 4 (e.i.r.p) :E :G m :G(ϕ).GHz 3,5 m,857 =λ (e.i.r.p).2 Y.dB Y 433A.5 432B.5 432A.5 43A.5.( ) ITU-R P.452-2.. 2 (db) Y ( ) 856-2 GHz 3.6-3.4. 2 2 dbw/mhz 6 ) dbw/mhz 7 (e.i.r.p).(itu-r F.336-2 : khz 4 (e.i.r.p.) d = 7 log( /4) + 3 = 3 dbm/4 khz
7 ITU-R S.856 km 5.( ) m 4 = ΔN. db 3 48.km...km 48,5. 48..km 4 dbm 3....3 :. (e.i.r.p) m dbm/4 khz 3 = 45 = ΔN.º48 =
ITU-R S.856 8 3 ) 47 km 2) 775 km 3) 95 km 4) 52 km 4 (m) 2 225 5 75 3. ( ).km.itu-r P.452-2 2. ITU-R P.452-2. (θ TP ) (θ IMT )... θ IMT > θ TP.mrad 4,7- = θ TP mrad 5,8 = θ IMT 4. 3 2.. 856-3
9 ITU-R S.856.. ( ).km 4. 4 225 m 5 m 75 m m 47 km 356 km 24 km 2 km km 856-4. 4. 25. ITU-R S.72 2 (e.i.r.p) ITU-R P.452-2. MHz 43A.5 (e.i.r.p) 433A.5 432B.5 432A.5.... 433A.5 432B.5 432A.5 43A.5 2.2
ITU-R S.856.3.. 4.2 4.3.2 2,5).( 2) ( ( 2). " "....ITU-R P.452-2. 433A.5 432B.5 432A.5 43A.5 : ) - ( -. 2.2 ( (2 (3 3.2.3.2. 5. 3 (h)
ITU-R S.856 5 / pfd 3 m E ϕ h d (km) 856-5 : () pfd = E G m + G(ϕ) L log(λ 2 /4π) db(w/(m 2 4 khz)) L khz 4 (e.i.r.p) E %2 ( d ) db G(ϕ) G m ( ) λ (db).32,33- = log(λ 2 /4π),857= λ GHz 3,5. db(w/(m 2 4 khz)) 54,5- : () (2) L = E (G m G(ϕ)) + 86.83 db (G m G(ϕ)) 8F. 6.dBi 6,3 2 2 2,5 ITU-R F.336. db 7,5 (G m G(ϕ))
dbi 6,3 = G m ITU-R S.856 2 6 2 2 5 º2,52 = db 3 7.5 db (dbi) 5 5 2 4 6 8 ( ) 856-6 (E) (CEPT) dbw/mhz 6.dBW/MHz 23. 2 db,5 2 dbw/mhz 23.. dbw/mhz 6 L (2).(E). (pfd) %2 2.3.2
3 ITU-R S.856 %8 pfd ((2) ) (db) e.i.r.p. (dbw/4 khz) Gm G(ϕ) (db) ( ) (e.i.r.p.) (dbw/mhz) 85,8 23 A 78,3 8,5 7,5 2 23 6 B 7,3 5,5 7,5 2 6 8,5 C 63,8 23 D 4,4 (4.2 ) 46,4 22,4 F ( ) º2 MHz dbw 6.(C ) %2 db 7,3.. 5 ITU-R P.452..... 5.7 - ( GHz 3,5) dbw 3.3.2 5 ITU-R 452-3 ITU-R P.452-2 4.2 4.3.2.. 43A.5 ) ITU-R P.452.(
ITU-R S.856 4 7 I 3 m dbi dbi dbw e.g. 3 m d (km) 856-7 dbw I.(I = + L + dbw) db L. %2 ITU-R P.452-2 I. dbw.. ITU R P.452-2 I.. %2.I L I..8 I. 8 o + + + + + + + + + + + + + + + + + + + + + + + + + + + + + o + + + + + + + + + + + + + + + + + + + + + + + + + + + + West o + + + + + + + + + + + + + + + + + + + + + + + + + + + + o + + + + + + + + + + + + + + + + + + + + + + + + + + + o+ + + + + + + + + + + + + + + + + + + + + + + + + + + o o + + + + + + + + + + + + + + + + + + + + + + + + + East o + + + + + + + + + + + + + + + + + + + + + + + dbw isotropic o + + + + + + + + + + + + + + + + + + + + + + + Isotropic receiving o + + + + + + + + + + + + + + + + + + + + + + + antennas along the o + + + + + + + + + + + + + + + + + + + + + border o + + + + + + + + + + + + + + + + + + + + o + o + + + + + + + + + + + + + + + + + Everywhere to the East of this contour, the path loss to (or from) any ( point ) along o + o + + + + + + + + + + + + + + the border will exceed, for example,. %8 db 7,3 o + o + + + o + o + + + + 7.3 db for more than 8% of the time. transmitters 9 856-8
5 ITU-R S.856 9 GHz 3,6-3,4 A B C D 856-9.. L 3.3.2.3.2 4.3.2 3,6-3,4. : GHz ( ). 43A.5 " 43A.5." 6. (2 ). 43A.5. (3 43A.5 ) - - -. 6 2
ITU-R S.856 6.. (8 ).2. 3 2 (2) 522 678 564 8 397 96 (km) 6 4,5 (km) 3 7 () (ΔN) 45 45 7 (2 ) ) ( (3 ) ΔN.ITU-R P.452..2 2 9 D C B A.. GHz 3.6-3.4. 433A.5 432B.5 432A.5 43A.5.. 2.. 27 dbw/mhz 6.dB(W/MHz) 22,4 2 (4 ) 3. db(w/mhz) 22,4. () (2) 4.2
7 ITU-R S.856.. 43A.5 ITU-R S.72 3. 433A.5 432B.5 432A.5 3.. ).(.2 2.3... 3...(ITU-R F.336 ).ITU-R P.452-2. 432B.5 432A.5 43A.5.. 433A.5. 2.3 2 3 4. GHz 3,6-3,4. 2 4
ITU-R S.856 8 5 N 47 N pfd 3 3 %2 - db(w/(m 2-4 khz)) 54,5 BELGIUM A B C D 23 dbw/mhz, downtilt 23 dbw/mhz, 2 downtilt or 6 dbw/mhz, downtilt 6 dbw/mhz, 2 downtilt or 8.5 dbw/mhz, downtilt dbw/mhz, downtilt LUXEMBOURG GERMANY Paris Reims Nancy Strasbourg FRANCE GERMANY Dijon SWITZERLAND 3 km Geneva 2 E 5 E 8 E 856-3 km
9 ITU-R S.856 Freetown GUINEA Kabala A B C D 23 dbw/mhz, downtilt 23 dbw/mhz, 2 downtilt or 6 dbw/mhz, downtilt 6 dbw/mhz, 2 downtilt or 8.5 dbw/mhz, downtilt dbw/mhz, downtilt GUINEA SIERRA LEONE Magburaka Kenema Bonthe LIBERIA 2 km 2 W 856-2 2 km 8 N pfd 3 3 %2-2 db(w/(m 2-4 khz)) 54,5
ITU-R S.856 2 Freetown GUINEA Kabala A B C D 23 dbw/mhz, downtilt 23 dbw/mhz, 2 downtilt or 6 dbw/mhz, downtilt 6 dbw/mhz, 2 downtilt or 8.5 dbw/mhz, downtilt dbw/mhz, downtilt GUINEA SIERRA LEONE Magburaka Kenema Bonthe LIBERIA 2 km 2 W 856-2 2 km 8 N 2 pfd 3 3 %2-3 db(w/(m 2 -khz 4)) 54,5
2 ITU-R S.856 52 N 5 N 3 pfd 3 3 %2-4 db(w/(m 2 -khz 4)) 54,5 3 E Gomel 35 E BELARUS Dmitriev RUSSIA 2 km Konotop UKRAINE Kiev 4 km Contour for IMT mobile terminals with an e.i.r.p. e.i.r.p. density of 22.4 dbw/mhz inthe horizontal plane dbw/mhz 22,4 db(w/mhz 5,5)) ) db(w/mhz 23) Contour for IMT bas stations with a peak e.i.r.p. density of 23 db(w/mhz), but 2 downtilt (i.e. e.i.r.p. 5.5 db(w/mhz) in the horizontal plane) 856-3