Nokia 6310i - Page 49

PAMS Technical Documentation 2 - Baseband System
NPL-1
,VVXH$SULO 1RNLD&RUSRUDWLRQ 3DJH
7KHEHORZILJXUHVKRZVDEDVLFZULWHZDYHIRUP
3RZHUVDYLQJVLJQDO36
,QRUGHUWRUHGXFHWKHSRZHUFRQVXPSWLRQRQWKHEXVD3RZHU6DYHIXQFWLRQLVLQWUR
GXFHG7KLVIXQFWLRQUHGXFHVWKHDPRXQWRIVZLWFKLQJRQWKHH[WHUQDOEXV
3RZHULVFRQVXPHGLQDGLJLWDOV\VWHPZKHQDVLJQDOFKDQJHVVWDWH7KHSRZHULVFRQ
VXPHGZKHQWKHFDSDFLWLYHORDGLVHLWKHUFKDUJHGRUGLVFKDUJHG7KHFDSDFLWLYHORDGLV
LQWURGXFHGE\WKHLQWHUFRQQHFWLRQLWVHOIDQGRIFDXVHE\WKHLQSXWDWWKHUHFHLYLQJ
GHYLFH,QWHUQDOO\LQGLJLWDOFLUFXLWVWKHFDSDFLWLYHORDGLVORZHUWKDQDWWKHLQWHUFRQQHFW
OHYHODWWKHSULQWHGFLUFXLWERDUG7KHUHIRUHLWLVDQDGYDQWDJHLIWKHDPRXQWRIFKDQJHV
RQWKHH[WHUQDOLQWHUFRQQHFWLRQLHEHWZHHQWZRGLJLWDOFLUFXLWVFDQEHPLQLPLVHG
7KHUHIRUHRQDZLGHEXVOLNHDQDGGUHVVGDWDEXVLQDPLFURSURFHVVRUV\VWHPSRZHULV
VDYHGLIWKHGDWDWREHWUDQVPLWWHGRQWKHH[WHUQDOEXVFDXVHVDPLQLPXPDPRXQWRI
WUDQVLWLRQV7KLVFDQEHDFKLHYHGE\FRPSDULQJWKHSUHYLRXVO\GDWDRQWKHEXVZLWKWKH
GDWDWREHWUDQVPLWWHGDQGLILQYHUWLQJWKHGDWDWREHWUDQVPLWWHGFDXVHVOHVVWUDQVLWLRQV
WREHSHUIRUPHGRQWKHH[WHUQDOEXVWKHGDWDLVLQYHUWHGEHIRUHLWLVRXWSXWRQWKHGDWD
EXV7RLQIRUPWKDWWKHGDWDLVLQYHUWHGDFRQWUROVLJQDOLVXVHGWRLQIRUPWKHUHFHLYLQJ
GHYLFHWKDWWKHGDWDPXVWEHLQYHUWHGEHIRUHDQ\IXUWKHUSURFHVVLQJ
'DWDRQWKHDGGUHVVGDWDEXVLVELWZLVHFRPSDUHGZKLFKPHDQVWKDWWKHGDWDSUHYLRXVO\
RQ''HLVFRPSDUHGZLWKWKHQHZGDWDWREHRXWSXWRQ''L,IWKHWZRGDWDHOH
PHQWVDUHWKHVDPH'H 'LDORJLF¦§LVLQGLFDWHGWRWKHFRPSDULQJGHYLFH,IWKHWZR
GDWDHOHPHQWVDUHQRWWKHVDPH'H 127'LDORJLF¦§LVLQGLFDWHGWRWKHFRPSDULQJ
Figure 17 Write waveform (Random access)