Tare da gina hanyar sadarwa ta 5G, farashin tashar 5G ya yi tsada sosai, musamman ganin matsalar yawan amfani da makamashi ta shahara.
A cikin yanayin China Mobile, don tallafawa hanyar saukar da sauri mai sauri, tsarin mitar rediyon 2.6GHz yana buƙatar tashoshi 64 da matsakaicin watts 320.
Dangane da wayoyin hannu na 5G da ke sadarwa tare da tashar tushe, saboda suna da kusanci da jikin ɗan adam, dole ne a kiyaye layin ƙasa na "cutar radiation", don haka ikon watsawa yana da iyaka.
Yarjejeniyar tana iyakance ikon watsa wayoyi na 4G zuwa iyakar 23dBm (0.2w).Ko da yake wannan ƙarfin ba shi da girma sosai, mitar 4G mainstream band (FDD 1800MHz) yana da ɗan ƙaramin ƙarfi, kuma asarar watsawa kadan ce.Ba shi da matsala don amfani da shi.
Amma yanayin 5G ya fi rikitarwa.
Da farko dai, babban mitar mitar 5G shine 3.5GHz, mitar mitoci mai girma, asarar hanyar yaɗawa, rashin ƙarfin shigar ciki, ƙarancin ƙarfin wayar hannu, da ƙarancin watsawa;sabili da haka, haɓakawa yana da sauƙi don zama ƙulli na tsarin.
Na biyu, 5G Yana dogara ne akan yanayin TDD, kuma ana aika haɗin sama da ƙasa a cikin rarraba lokaci.Gabaɗaya, don tabbatar da ƙarfin saukar da hanyar haɗin gwiwa, rabon zuwa haɓakar lokacin ramin yana da ƙasa, kusan 30%.A takaice dai, wayar 5G a cikin TDD kawai tana da kashi 30% na lokacin aika bayanai, wanda ke kara rage matsakaita wutar lantarki.
Bugu da ƙari, ƙirar ƙaddamar da 5G yana da sassauƙa, kuma sadarwar yana da rikitarwa.
A yanayin NSA, 5G da 4G suna aika bayanai lokaci guda akan haɗin haɗin gwiwa, yawanci 5G a yanayin TDD da 4G a yanayin FDD.Ta wannan hanyar, mene ne ya kamata wayar tafi da gidanka ta kasance?
A yanayin SA, 5G na iya amfani da TDD ko FDD watsa mai ɗaukar kaya guda ɗaya.Kuma tara mai ɗaukar waɗannan hanyoyin guda biyu.Hakazalika yanayin yanayin NSA, wayar salula na buƙatar watsa bayanai a lokaci guda akan nau'ikan mitoci daban-daban guda biyu, da TDD da FDD hanyoyi biyu;nawa ya kamata ya watsa?
Bayan haka, nawa ne wayar hannu za ta watsa wutar lantarki idan aka tara masu ɗaukar TDD guda biyu na 5G?
3GPP ya ayyana matakan wutar lantarki da yawa don tasha.
A kan Sub 6G bakan, ikon matakin 3 shine 23dBm;matakin wutar lantarki 2 shine 26dBm, kuma ga matakin wutar lantarki 1, ikon ka'idar ya fi girma, kuma a halin yanzu babu ma'anar.
Saboda girman mitar da halayen watsawa ya bambanta da Sub 6G, yanayin aikace-aikacen an fi la'akari da shi a cikin hanyoyin gyarawa ko amfani da wayar hannu.
Yarjejeniyar tana ayyana matakan ƙarfi huɗu don igiyar millimita, kuma ma'aunin radiation yana da ɗan faɗi.
A halin yanzu, amfani da kasuwanci na 5G ya dogara ne akan sabis na eMBB na wayar hannu a cikin rukunin Sub 6G.Abubuwan da ke biyo baya za su mai da hankali musamman kan wannan yanayin, suna yin niyya ga manyan tashoshin mitar 5G (kamar FDD n1, N3, N8, TDD n41, n77, N78, da sauransu).An raba shi zuwa nau'i shida don kwatanta:
- 5G FDD (Yanayin SA): matsakaicin ikon watsawa shine matakin 3, wanda shine 23dBm;
- 5G TDD (Yanayin SA): matsakaicin ikon watsawa shine matakin 2, wanda shine 26dBm;
- 5G FDD + 5G TDD CA (Yanayin SA): matsakaicin ikon watsawa shine matakin 3, wanda shine 23dBm;
- 5G TDD + 5G TDD CA (Yanayin SA): matsakaicin ikon watsawa shine matakin 3, wanda shine 23dBm;
- 4G FDD + 5G TDD DC (Yanayin NSA): matsakaicin ikon watsawa shine matakin 3, wanda shine 23dBm;
- 4G TDD + 5G TDD DC (Yanayin NSA);Matsakaicin ikon watsawa da aka ayyana ta R15 shine matakin 3, wanda shine 23dBm;kuma sigar R16 tana goyan bayan matsakaicin matakin watsa wutar lantarki 2, wanda shine 26dBm
Daga nau'ikan guda shida na sama, muna iya ganin halaye masu zuwa:
Muddin wayar hannu ta yi aiki a yanayin FDD, matsakaicin ikon watsawa shine 23dBm kawai, yayin da a yanayin TDD, ko sadarwar mara zaman kanta, 4G da 5G duka yanayin TDD ne, matsakaicin ƙarfin watsawa zai iya zama annashuwa zuwa 26dBm.
Don haka, me yasa yarjejeniya ta damu sosai game da TDD?
Kamar yadda kowa ya sani, masana'antar sadarwa koyaushe suna da ra'ayi daban-daban akan ko radiation na lantarki.Har yanzu, don kare lafiya, dole ne a iyakance ikon watsa wayoyi ta hannu.
A halin yanzu, ƙasashe da ƙungiyoyi sun kafa ƙa'idodin lafiya na fallasa hasken lantarki mai dacewa, tare da iyakance hasken wayar hannu zuwa ƙaramin kewayo.Muddin wayar hannu ta bi waɗannan ƙa'idodi, ana iya ɗaukar ta lafiya.
Waɗannan ƙa'idodin kiwon lafiya duk suna nuna alama ɗaya: SAR, wanda ake amfani da shi musamman don auna tasirin radiation kusa da wayar hannu da sauran na'urorin sadarwa masu ɗaukar nauyi.
SAR ƙayyadaddun rabo ne na sha.An ayyana shi azaman auna adadin kuzarin da jikin ɗan adam ke sha a kowace juzu'i lokacin da aka fallasa mitar rediyo (RF) na lantarki.Hakanan yana iya komawa zuwa ɗaukar wasu nau'ikan makamashi ta nama, gami da duban dan tayi.An ayyana shi azaman ƙarfin da ake sha a kowane nau'in nama kuma yana da watts raka'a a kowace kilogiram (W/kg).
Matsayin ƙasar Sin ya zana kan ƙa'idodin Turai kuma ya ƙayyade: “Matsakaicin ƙimar SAR na kowane gram 10 na ilimin halitta na kowane minti shida ba zai wuce 2.0W/Kg ba.
Wato, kuma waɗannan ma'auni suna kimanta matsakaicin adadin electromagnetic radiation da wayoyin hannu ke samarwa na ɗan lokaci.Yana ba da izinin ɗan ƙarami mafi girma a cikin ɗan gajeren lokaci, muddin matsakaicin ƙimar bai wuce ma'auni ba.
Idan mafi girman watsa wutar lantarki shine 23dBm a yanayin TDD da FDD, wayar hannu a yanayin FDD tana ci gaba da watsa wuta.Sabanin haka, wayar hannu a yanayin TDD tana da ikon watsawa kashi 30% kawai, don haka jimillar ikon fitar da TDD ya kai 5dB kasa da FDD.
Don haka, don rama ikon watsa yanayin TDD da 3dB, yana kan jigon ma'aunin SAR don daidaita bambanci tsakanin TDD da FDD, kuma wanda zai iya kaiwa 23dBm akan matsakaita.
Lokacin aikawa: Mayu-03-2021