GSM????綽????????
???????????? ???????[ 2012/12/12 10:48:12 ] ????????
?????????GSM????綽?????????????????????????????????????Щ??????????????????????????????????????????????ο?????????????????????????????????????????????????????????????????????????Щ??????????????????????
1 ???(RF)???????????
1.1 ??????????Rx sensitivity??
????(1)????
?????????????????????????????????????????????????????????????????С???????????????????????????????????(FER)?????????????(RBER)?????????(BER)????????????????????ò??????????(RBER)????????????????
???????????(RBER)????????????????????????з????????????????
????(2)???????
?????GSM900MHz???
??????????????????RF????????102dBm???RBER??????2???????????????????????????????????綽???????????????RBER??2???????RF???????-l09?l07dBm??????????????????RF???????-l07?l05dBm????????????????????RF???????-105?l02dBm??????????????????RF????????-l02dBm??????????????????
?????DCSl800MHz???
??????????????????RF???????-l00dBm??RBER??????2???????????????????????????????????綽???????????????RBER??2???????RF????????l08? -105dBm??????????????????RF????????105-- -l03dBm????????????????????RF???????-l03? -100dBm??????????????????RF?????????-l00 dB mm??????????????????
1??2??????Fe????λ?????Pepeak????λ?????Ч?PeRMS
????(1)????
??????????????????????λ???????鷢?????????????????GSM???????????С???????(GMSK)????????????BT??0??3??
??????????????λ???????????????????????λ???????????????λ???????????λ???????????????α????????????GMSK?????????????????
?????????????????????????λ????????????????????????????????(ARFCH)????????????????????????????????飬??????????б?????????????(???ω??θ/t)??λ?????Pepeak?????????????????λ?????Ч?PeRMS????λ????????????????е????λ??????????????????????????
????(2)???????
?????GSM900MHz???
????????Fe
??Fe??40Hz??????????????
??40Hz≤Fe6≤60Hz????????????????
??60Hz≤Fe≤90Hz??????????????
??Fe??90Hz????????????????
????λ?????Pepeak
??Pepeak??7de8??????λ?????????
??7deg≤Pepeak≤l0deg??????λ???????????
??10deg≤Pepeak≤20deg????λ?????????
??Pepesk??20deg?????????????????
????λ?????Ч?PeRMS
??PeRMs??2??5deg??????λ?????Ч?????
??2??5deg≤PeRMS≤4deg??????λ?????Ч???????
??4deg≤PeRMS≤5deg??????λ?????Ч?????
??PeRMS??5deg?????????????????
??????S1800MHz???
????????Fe
??Fe??80Hz??????????????
??80Hz≤Fe≤100Hz????????????????
??100HZ≤Fe≤180Hz??????????????
??F e??l 80H z?????????????????
????λ?????Pepeak
?GSM900MHz?????
????λ?????Ч?PeRMS
?GSM900MHz?????
1.3 ??????????Po
????(1)????
????????????????????????Ч????????????????б????????????書????п???(???????)????????????????????????????????????????????????????????????????????????????????書????????????????
?????????????????????????????????????????????????ETSI?漲????????
????(2)???????
?????GSM900Mz???
?????????????????????????????????????l(????class IV????)??
?????DCSl800MHz???
?????????????????????????????????????2(????class I????)??
??????
???·???
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