Ibikoresho bifatika bizwiho kugira ingaruka zidafite umurongo kuri sisitemu.Ubuhanga butandukanye bwateguwe kugirango tunoze imikorere yibi bikoresho mugihe cyo gushushanya no gukora ibyiciro.Biroroshye kwirengagiza ko igikoresho cya pasiporo gishobora no gutangiza ingaruka zidafite umurongo, nubwo rimwe na rimwe ari gito, zishobora kugira ingaruka zikomeye kumikorere ya sisitemu niba idakosowe.

PIM bisobanura "intermodulation passiyo".Yerekana ibicuruzwa bya intermodulation byakozwe mugihe ibimenyetso bibiri cyangwa byinshi byoherejwe binyuze mubikoresho byoroshye kandi bitarimo umurongo.Imikoranire yibice byahujwe nubusanzwe bitera ingaruka zidafite umurongo, zigaragara cyane cyane aho ihurira ryibyuma bibiri bitandukanye.Ingero zirimo imiyoboro idahwitse, imiyoboro idahumanye, duplexer idakora neza, cyangwa antene ishaje.

Passmod intermodulation nikibazo gikomeye mubikorwa byitumanaho rya selire kandi biragoye kubikemura.Muri sisitemu y'itumanaho rya selire, PIM irashobora gutera intambamyi, kugabanya ibyakirwa, cyangwa guhagarika itumanaho burundu.Uku kwivanga gushobora kugira ingaruka kuri selile ikora, kimwe nabandi bakira hafi.Kurugero, muri LTE band 2, intera yamanutse ni 1930 MHz kugeza 1990 MHz naho urwego rwo hejuru ni 1850 MHz kugeza 1910 MHz.Niba abatwara ibintu bibiri kuri 1940 MHz na 1980 MHz, bohereza ibimenyetso bivuye muri sisitemu fatizo hamwe na PIM, intermodulation yabo itanga ikintu kuri 1900 MHz kigwa mumurongo wakira, bigira ingaruka kubakira.Mubyongeyeho, intermodulation muri 2020 MHz irashobora kugira ingaruka kubindi sisitemu.

Mugihe ibintu bigenda byuzura kandi gahunda yo kugabana antenne ikamenyekana cyane, birashoboka ko intermodulation yabatwara ibintu bitandukanye itanga PIM iriyongera.Uburyo gakondo bwo kwirinda PIM hamwe noguteganya inshuro biragenda bidashoboka.Usibye imbogamizi zavuzwe haruguru, kwemeza gahunda nshya yo guhindura imibare nka CDMA / OFDM bivuze ko imbaraga zo hejuru za sisitemu yitumanaho nazo zigenda ziyongera, bigatuma ikibazo cya PIM "gikomera".

PIM nikibazo gikomeye kandi gikomeye kubatanga serivisi n'abacuruza ibikoresho.Gutahura no gukemura iki kibazo gishoboka byongera sisitemu yo kwizerwa no kugabanya ibiciro byo gukora.

NkuwashushanyijeRF duplexers, Jingxin irashobora kugufasha kubibazo bya RF duplexers, hanyuma ugahitamo ibice bya pasiporo ukurikije igisubizo cyawe.Ibisobanuro birambuye murashobora kutugisha inama.