ITU-R BT. (/) & ' ( & " #$%! - ".,(UHF) ) * + (VHF) ( / ) ( ) BT
ITU-R BT.8-9 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 RS S SA SF SM SNG TF V :.ITU-R ITU..(ITU)
ITU-R BT. ITU-R BT. (UHF) (VHF) () (DTTB). (UHF) (VHF) ITU-R BT. ( ( (UHF) (VHF) (VHF) ( (UHF) (DTTB) ( ( ( ITU-R BT.877 ( / ( ( (C/N) ITU-R BT.8 (
ITU-R BT. ( (PR)... - : - - - - - RF..[]..... /.[]
ITU-R BT. () - (DVB)... DVB-T........ LTE........ DVB-T DVB-T 7. DVB-T...LTE 8.. DVB-T (LTE-BS)... 9.. DVB-T...(LTE-UE). DVB-T... 7. (O th )... 8.... DVB-T...... 8 - Can... -......................... 7... 7... -... () -.........
ITU-R BT. () -.......... : L h.... : L b.... :... L v.....................(mmn) () -... 7 (SFP)... 7 () -... 8... 8
ITU-R BT. () (DVB) DVB-T DVB-T... DVB-T K /8 9 SISO MHz 8 PP7 QAM QAM / 8 9,7, (PAPR) (GI) FFTSIZE SISO/MISO L PLP # QAM FFC (N_TI) TI (P_I) T (I_JUMP) db ( ) C/N Mbit/s.
ITU-R BT. LTE (UE) (BS) MHz LTE (LTE). I/Q. : - ( - % (. - % ( : - -. - Mbit/s Mbit/s Mbit/s.. ( ( (..8. %9 %9 9 th - th... O th Δf - :NR -. O th PR -. -.PR db db + PR -... - 7 O th (DVB) ETSI TS 8. - 8.(DVB-T).(DVB-T) (DVB) ETSI EN 7 db LTE-BS. N- - 9 N- (ACLR)
7 ITU-R BT. DVB-T 8 LTE.LTE DVB-T : - - - DVB-T ( ) 8 ( DVB-T..ITU-R BT.- ) DVB-T DVB-T 8,,, / QPSK,9,8, / QPSK,,8, / QPSK 7,,8, / QPSK 8,,, / QPSK 9, 7,, / QPSK 9, 7,8 7, / -QAM,7 9, 9, / -QAM,,, / -QAM,9,8, / -QAM,,, / -QAM,9,,7 / -QAM,,,9 / -QAM,8,,8 / -QAM 7,,, / -QAM 9,,9, / -QAM,9 8, 7, / -QAM,8 8,7 8, / -QAM 8,,,9 / -QAM, 8, 8, / -QAM,, 9,7 / -QAM,,,7 / -QAM,,, / -QAM 8,,,9 / -QAM
ITU-R BT. 8.( )..MHz 8 7 DVB-T ( ) DVB-T (dbm) ( ) (dbm) th 9 th th DVB-T (MHz) N (MHz 8 ) th 7 9 9, 9 8 7 9, 7 8 8 7 9. DVB-T... db DVB-T LTE ) LTE OFDMA DVB-T.( ) SC FDMA ( MHz 8 7 DVB-T.MHz 8 79 (can) DVB-T ()...
9 ITU-R BT. " ITU-R BT. LTE." LTE DVB-T.. LTE.(UE) (BS). ( ). % BS th.lte. (LTE-BS) DVB-T.. ( ) DVB-T LTE-BS % 9 th BS th % 9 th BS th (MHz) N (MHz 8 ) 9 9 9 9 9 9 AWGN 9 th 9 9 8 8 LTE 7 8 9 9 8 7 8 8 7 8 9 8 9 9 7 8 8 8 7 7 8 9
% BS th ITU-R BT. ( ) DVB-T (dbm) LTE-BS BS % th th % BS th th (MHz) N (MHz 8 ) th 8 8 8 8 7 7 8 9 GPP TS..LTE (LTE-UE) DVB-T.. (UE) - (ACLR) - -. - 7.ETSI 8 9
ITU-R BT. LTE-UE UE Mbit/s = db 7,8 ACLR db 8, (N+) (N+) db (N+9 N+) PR ( ) DVB-T th UE Mbit/s db = ACLR 9 th PR th UE Mbit/s db = ACLR 9 th PR th N /MHz 8 9 th 9 9 9 9 9 9 9 9 7 9 7 8 9 8 7 8 8 8 9 9 9 9 9 7 8 7 AWGN () LTE () /() MHz 8 ACLR UE ACLR...... GPP TS..dBm MHz 79-7 ETSI -98-.7 UE ACLR,, 88, 7 (MHz) 8 7- N (MHz 8 ) ) (dbm/8 MHz) ACLR (8) () () () () 7 (8) 8 () 9 (7)
ITU-R BT. 8 (AWGN).(ACLR). PR Δf. ACLR PR (PR(Δf)) PR PR( Δf ) ACLR ACS( Δf ) = log( ACS.ACLR : ACLR Δf LTE ACLR ACS PR (Δf) PR ( Δf ) = PR + log( + ACS ACLR. ACLR ACLR ACLR (MHz 8 ) DVB-T (MHz ). LTE UE 8 ( ) DVB-T UE Mbit/s = db 7,8 ACLR db 8, (N+) (N+) db (N+9 N+) PR th UE Mbit/s db = ACLR 9 th PR th UE Mbit/s = ACLR db 9 th PR th ) ) N /MHz 8 9 th 9 9 9 9 9 8 9 8 8 8 8 9 7 9 7 AWGN () LTE () /() (8) () () ()
ITU-R BT. UE Mbit/s = db 7,8 ACLR db 8, (N+) (N+) db (N+9 N+) PR th () UE Mbit/s db = ACLR 9 th PR th 8 UE Mbit/s = ACLR db 9 th PR th N /MHz 8 9 th 9 8 () 7 9 9 9 7 (8) 8 () 9 (7) LTE UE 9 ( ) DVB-T (dbm) UE Mbit/s UE Mbit/s UE Mbit/s (MHz) N (MHz 8 ) O th (dbm) th th O th (dbm) th th O th (dbm) th 7 th 8 8 7 7 8 9 DVB-T.DVB-T DVB-T (AWGN) (C/N).
ITU-R BT... (C/N). DVB-T ( ) 8,,8,,,,, 9, 7,,8,,8,7,9,,,,,,8,,9,9 8, ( DVB-T ) 8 7,,9,9,9,,7,9, 9, 7,9 7,, 7,,,,8,,,,,,,9,7 7,,,,,,,,7 9,v 8, 7, 7, 7,8,9,,,,,8,,,,, / / / / / / / / / / / / / / / / / / / / / / / / QPSK QPSK QPSK QPSK QPSK QPSK -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM -QAM DVB-T..
ITU-R BT. (O th ). ( ) 9 9 th.. (ACLR) 7 ( ) DVB-T LTE-UE LTE-BS can O th (dbm) 9 9 LTE UE PR 9 9 8 7 8 O th (dbm) LTE BS PR 9 9 7 (MHz) 8 8 7 N (MHz 8 ) (AWGN) (LTE) 7 8 9 7..DTT.DTT (db -) ( ) LTE UE " DTT (AGC) :." ) "" - " " - -.. 8.
ITU-R BT. DVB-T ). (.DVB-T - ITU-R BT. / 8, QAM- k FEC / PP Normal -9, 8,, 7,, 7,,9,9 8 9 MHz / 7,9 QAM- k FEC / PP Normal -, 8,9,8,9, 7,,, 8 MHz 8, QAM- k FEC / PP7 Normal -, 8, 9,7 9, 7,7 9,, DVB-T MHz db Mbit/s db MHz dbw dbw dbµv db db dbm db(w)/m dbµv/m db db db db III DVB-T Freq C/N F B P n P s min U min L f G d A a Φ min E min P mmn L b, L h Div C/N () ( ) Ω 7 ( )
7 ITU-R BT. () / 7,,,7 8,, 9,9,,87 77, 9, / 7,,,88 9,, 9,9, 9,9 87, 8, 7,,,88,, 9,9, 9,9 98, 7, % db db(w)/m dbµv/m % db db(w)/m dbµv/m III DVB-T % () % % % () % () % % % () C l Φ med E med C l Φ med E med. m, m () / 8, QAM- k FEC / PP Normal 8-7,77 7,9,8 8, / MHz 7,9 QAM- k FEC / PP Normal 9-7,77 8,, 7, MHz 8, -QAM k FEC / PP7 Extended - 7,77 8, 9, 9,7 DVB-T MHz db Mbit/s db MHz dbw dbw dbµv db V/IV DVB-T Freq C/N F B P n P s min U min L f C/N () ( ) Ω 7
ITU-R BT. 8 () /, 9,, 7, 8,,7 79,,8 9,9 8,,9 7, 7,9 /, 9,, 7,,,88 9,7, 9,9, 9,9 8,,,,, 7,,,88 97, 8, 9,9, 9,9 9,, db dbm db(w)/m dbµv/m db db db db % db db(w)/m dbµv/m % db db(w)/m dbµv/m V/IV DVB-T G d A a Φ min E min P mmn L b, L h Div C l Φ med E med C l Φ med E med ( ) % () % % % () % () % % % (). m, m () [] Report ITU-R BT. Measurements of protection ratios and overload thresholds for broadcast TV receivers. [] Report ITU-R BT. Frequency and network planning aspects of DVB-T.
9 ITU-R BT. : F + log (k T B) = P n C/N + P n = P s min G + log (,λ / π) = A a P s min A a + L f = φ min φ min + + log ( π) = E min φ min +,8 E min + P mmn + C l = = E med E min + P mmn + C l + L h = E med E min + P mmn + C l + L h + L b = E med σ µ σt = b + σ m (dbw) (k =,8 (J/K)) (T = 9 (K)) (B = 7, (Hz)) (dbw) S/N (dbm ) (dbd) (m) (db(w/m )) (pfd) (db(μv/m)) (db(μv/m)) = C l σt :P n :F :k :T :B :P s min :C/N :A a :G :λ :φ min :L f :E min :E med :
ITU-R BT..%99 (, %9 m,, %9 ),8 %7, (σ m =, ) :P mmn :L h :L b :C l :σ t :σ m :σ b :µ.lte BS Can Can LTE BS (O th ) (PR). % BS ( Can ) DVB-T LTE BS % BS % BS (MHz) N (MHz 8 ) Rx 8 9 9 Rx 9 9 Rx 9 9 Rx 8 9 8 Rx 9 8 Rx 9 8 Rx 8 9 Rx 9 Rx 9 AWGN () LTE () 9 8 7 9 7 8 8 7 8
ITU-R BT. () % BS % BS % BS (MHz) N (MHz 8 ) Rx 8 Rx Rx Rx 8 Rx Rx Rx 8 Rx Rx 7 9 8 7 8 7 9 7 7 8 8 7 7 7 8 8 7 7 8 7 8 8 7 9 ( BS % (dbm) ) DVB-T (dbm) LTE BS Can BS % (dbm) % BS (dbm) (MHz) N ) (MHz 8 Rx 8 Rx Rx Rx 8 Rx Rx Rx 8 Rx Rx 8 8 8 8 7 8 7 9 LTE UE 7.can UE.7 UE.8 AWGN.. T can PR 8
ITU-R BT. ( Can UE Mbit/s ACLR (N+) db 7,8 = (N+) db 8, (N+9 N+ db ) PR ) DVB-T LTE UE UE Mbit/s ACLR db = PR UE Mbit/s ACLR db = PR N /( MHz 8 ) ) ( Rx 8 9 9 Rx 9 9 Rx 9 9 Rx 8 9 8 Rx 9 8 Rx 9 8 Rx 8 9 Rx 9 Rx 9 AWGN () LTE () 8 ()/ 9 8 8 7 (8) 8 8 9 9 8 () 9 () 8 7 7 () 7 7 7 () 7 7 7 7 (8) 7 7 8 8 7 () 8 7 7 7 (7) 9
ITU-R BT. 7 ( Can UE Mbit/s ACLR (N+) db 7,8 = (N+) db 8, (N+9 N+ db ) PR ) DVB-T LTE UE UE Mbit/s ACLR db = PR UE Mbit/s ACLR db = PR N /( MHz 8 ) ) ( Rx 8 9 9 Rx 9 9 Rx 9 9 Rx 8 9 8 Rx 9 8 Rx 9 8 Rx 8 9 Rx 9 Rx 9 AWGN () LTE () ()/ (8) 8 8 9 9 8 () 9 () 7 7 () 7 7 8 () 7 7 8 (8) 7 7 () 8 7 7 (7) 9 8 ( (O th ) UE Mbit/s (dbm) ) DVB-T (dbm) LTE UE Can (O th ) UE Mbit/s (dbm) (O th ) UE Mbit/s (dbm) (MHz) N MHz ) (8 Rx 8 Rx Rx Rx 8 Rx Rx Rx 8 Rx Rx 7 7 9 NR NR 8 8 8 8 9
ITU-R BT. () 8 (O th ) UE Mbit/s (dbm) (O th ) UE Mbit/s (dbm) (O th ) UE Mbit/s (dbm) (MHz) N MHz ) (8 Rx 8 Rx Rx Rx 8 Rx Rx Rx 8 Rx Rx 8 8 8 7 8 8 8 7 9.LTE DVB-T " " DVB T. (BS) UE. BS - (UE). BS RF. UE.UE (MM) LTE..... / A
ITU-R BT. DVB.DTT MHz 7 DVB-T ([] DVB-T ).9 9. DVB-T 7 8 (KE) QAM / /8 PP7 9. OFDM Rc ( /Tu) ( ) FEC.[] LTE (UE) (BS).LTE. IP.Mbit/s Mbit/s.MHz. (ALCR). LTE.. /.Mbit/s Mbit/s
ITU-R BT. Mbit/s LTE Ref level. dbm Att SGL db SWT s Rm Clrw RBW MHz VBW 8 MHz Compatible FSP dbm dbm dbm 7 dbm 8 dbm 9 dbm dbm dbm dbm CF 7. MHz pts. s/ Mbit/s LTE BT.- Ref level. dbm Att SGL db SWT s Rm Clrw RBW MHz VBW 8 MHz Compatible FSP dbm dbm dbm 7 dbm 8 dbm 9 dbm dbm dbm dbm CF 7. MHz pts. s/ BT.- 77 ) MHz 8+ + LTE DVB-T LTE UE MHz LTE (MHz 7.LTE MHz 9 MHz. DTT.[]...
7 ITU-R BT... Can Can STB/PVR STB STB R R R ACLR LTE. db. LTE []. LTE UE 8..Mbit/s MHz R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.-
ITU-R BT. 8 MHz 8 R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.- MHz R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.-
9 ITU-R BT. MHz 8 R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.- MHz 7 R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.-7
ITU-R BT. MHz 8 8 R Mbps LTE EU Mbps LTE EU Mbps LTE EU Mbps LTE EU 9 8 7 (dbm) DTT BT.-8. R.. ( ) R R db -..MHz 8 Mbit/s UE.Mbit/s.LTE. LTE UE. [] Document A/ Measured DVB-T protection ratios and overload thresholds in the presence of LTE signals Source: British Broadcasting Corporation (UK). [] ETSI EN 7 Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T).
ITU-R BT.. "Can".(PVR) (idtv) Can "Can". MHz IF O th PR MHz 7 = /IF.. ).(" " N+9 can N+8 N+9 O th. ""....... "Super heterodyne" "Can"..(Varactor)
ITU-R BT. () LTE. T DVB-T word. DVB-T. K DVB-T MPEG- -QAM / K 8 MHz 8.MPEG- -QAM /.. LTE MHz LTE.MHz 8 /7/EU. Microsoft Office Word 97 - D DVB-T DVB-T. extract from A-9.docx
ITU-R BT. () ITU-R P... MHz MHz MHz (VHF).dB,. (UHF) ITU-R P..% %.MHz, 9 % 7 8 9 9 98 99 (III II I ) (V IV ) MHz MHz 89 7 : BT.-9
ITU-R BT. L h : ITU-R P. m. m m m :.(m ). ITU-R P. L b :... ITU-R P.79. ITU-R P.8.GHz MHz... IV/V.. 7 7 : : -. -
ITU-R BT. : -. - :. -. L v :. V/IV.dB. ITU-R BT.9. :. (dbd ). (dbd) III IV V....UHF..
ITU-R BT. (dbd ) (dbd) 9 7 (MHz).. /... V/IV db db 7 98 88 (dbd ) (dbd).. III IV V db (MMN) III db db 8 *. *
7 ITU-R BT. V/IV db db III * db db () (SFP) SFP BER. DVB-T RF.. SFP s SFP SFP.s " ".db, db SFP BER QEF.LDPC "".dbm.(itu-r BT. ) ).DTTB SFP.(ISDB-T
ITU-R BT. 8 ().. (e.r.p. ) : E C = E(, ) + P + A C : kw E T = E(, t) + P + A T (db( kw)) e.r.p. (db(μv/m)) % t :E(, t) :P :A :. :T C.EC > ET : AC E(, ) + A C > E(, t) + A T