Kodi Foni ya 5G Ili ndi Mphamvu Zochuluka Bwanji?

Pomanga maukonde a 5G, mtengo wa 5G base station ndi wokwera kwambiri, makamaka popeza vuto lakugwiritsa ntchito mphamvu zambiri limadziwika kwambiri.

Pankhani ya China Mobile, kuti ithandizire kutsika kothamanga kwambiri, gawo lake la 2.6GHz wailesi pafupipafupi imafuna ma tchanelo 64 ndi ma watts 320.

Ponena za mafoni a m'manja a 5G omwe amalankhulana ndi malo oyambira, chifukwa amagwirizana kwambiri ndi thupi la munthu, mfundo ya "kuvulazidwa kwa ma radiation" iyenera kutetezedwa mosamalitsa, kotero kuti mphamvu yopatsirana imakhala yochepa kwambiri.

Protocol imachepetsa mphamvu zotumizira mafoni a 4G mpaka 23dBm (0.2w).Ngakhale kuti mphamvuyi si yaikulu kwambiri, mafupipafupi a 4G mainstream band (FDD 1800MHz) ndi ochepa, ndipo kutayika kwa kufalitsa kumakhala kochepa.Si vuto kugwiritsa ntchito.

Koma mkhalidwe wa 5G ndi wovuta kwambiri.

Choyamba, gulu lafupipafupi la 5G ndi 3.5GHz, maulendo apamwamba, kutayika kwakukulu kwa njira yofalitsa, kulephera kulowa bwino, kufooka kwa foni yam'manja, ndi mphamvu zochepa zotumizira;Chifukwa chake, uplink ndiyosavuta kukhala yotsekereza dongosolo.

Chachiwiri, 5G Imachokera pamtundu wa TDD, ndipo uplink ndi downlink zimatumizidwa mu magawo a nthawi.Nthawi zambiri, kuwonetsetsa kutsika kwapang'onopang'ono, kugawa kwa uplink kwanthawi yayitali kumakhala kochepa, pafupifupi 30%.Mwa kuyankhula kwina, foni ya 5G mu TDD imakhala ndi 30% yokha ya nthawi yotumiza deta, zomwe zimachepetsanso mphamvu zotumizira.

Komanso, njira yotumizira ya 5G ndi yosinthika, ndipo maukonde ndi ovuta.

Mu NSA mode, 5G ndi 4G zimatumiza deta nthawi imodzi pa mgwirizano wapawiri, kawirikawiri 5G mu TDD mode ndi 4G mu FDD mode.Mwanjira imeneyi, mphamvu zotumizira mafoni ziyenera kukhala chiyani?

Mu SA mode, 5G imatha kugwiritsa ntchito TDD kapena FDD single carrier transmission.Ndipo phatikizani chonyamulira cha mitundu iwiriyi.Mofanana ndi nkhani ya NSA mode, foni yam'manja imayenera kutumiza deta nthawi imodzi pamagulu awiri afupipafupi, ndi TDD ndi FDD njira ziwiri;ikuyenera kufalitsa mphamvu zochuluka bwanji?

Kupatula apo, kodi foni yam'manja iyenera kufalitsa mphamvu zingati ngati ma TDD onyamula 5G aphatikizidwa?

3GPP yatanthawuza magawo angapo amagetsi pa terminal.

Pa mawonekedwe a Sub 6G, mulingo wamagetsi 3 ndi 23dBm;mlingo wa mphamvu 2 ndi 26dBm, ndipo pamlingo wa mphamvu 1, mphamvu yamaganizo ndi yaikulu, ndipo palibe tanthauzo.

Chifukwa cha kuchuluka kwa ma frequency ndi mawonekedwe opatsirana ndi osiyana ndi Sub 6G, mawonekedwe ogwiritsira ntchito amaganiziridwa kwambiri pamakonzedwe ofikira kapena osagwiritsa ntchito foni yam'manja.

Protocol imatanthawuza magawo anayi amphamvu a millimeter-wave, ndipo ma radiation index ndi otakata.

Pakalipano, kugwiritsa ntchito malonda a 5G makamaka kumachokera pa foni yam'manja ya eMBB utumiki mu Sub 6G band.Zotsatirazi zikuyang'ana kwambiri pazochitikazi, kulunjika magulu afupipafupi a 5G (monga FDD n1, N3, N8, TDD n41, n77, N78, etc.).Agawidwa m'mitundu isanu ndi umodzi kuti afotokoze:

1. 5G FDD (SA mode): mphamvu yotumizira kwambiri ndi mlingo 3, womwe ndi 23dBm;
2. 5G TDD (SA mode): mphamvu yotumizira kwambiri ndi mlingo 2, womwe ndi 26dBm;
3. 5G FDD + 5G TDD CA (SA mode): mphamvu yotumizira kwambiri ndi mlingo wa 3, womwe ndi 23dBm;
4. 5G TDD + 5G TDD CA (SA mode): mphamvu yotumizira kwambiri ndi mlingo wa 3, womwe ndi 23dBm;
5. 4G FDD + 5G TDD DC (NSA mode): mphamvu yotumizira kwambiri ndi mlingo 3, womwe ndi 23dBm;
6. 4G TDD + 5G TDD DC (NSA mode);Mphamvu yotumizira kwambiri yomwe imatanthauzidwa ndi R15 ndi mlingo 3, womwe ndi 23dBm;ndipo mtundu wa R16 umathandizira mulingo wapamwamba kwambiri wotumizira 2, womwe ndi 26dBm

Kuchokera pamitundu isanu ndi umodzi yomwe ili pamwambapa, titha kuwona izi:

Malingana ngati foni yam'manja ikugwira ntchito mu FDD mode, mphamvu yaikulu yotumizira ndi 23dBm yokha, pamene ili mu TDD mode, kapena maukonde osagwirizana, 4G ndi 5G onse ndi TDD mode, mphamvu yotumizira kwambiri imatha kumasuka ku 26dBm.

Ndiye, chifukwa chiyani protocol imasamala kwambiri za TDD?

Monga tonse tikudziwa, makampani opanga ma telecommunication nthawi zonse amakhala ndi malingaliro osiyanasiyana ngati ma radiation a electromagnetic.Komabe, pofuna chitetezo, mphamvu zotumizira mafoni a m'manja ziyenera kukhala zochepa.

Pakadali pano, mayiko ndi mabungwe akhazikitsa miyezo yoyenera yaumoyo yamagetsi yamagetsi, ndikuchepetsa ma radiation amafoni kuti akhale ochepa.Malingana ngati foni yam'manja ikugwirizana ndi mfundozi, ikhoza kuonedwa kuti ndi yotetezeka.

Miyezo yaumoyo yonseyi imaloza ku chizindikiro chimodzi: SAR, chomwe chimagwiritsidwa ntchito makamaka kuyeza zotsatira za ma radiation apafupi kuchokera ku mafoni am'manja ndi zida zina zoyankhulirana zam'manja.

SAR ndi gawo linalake la mayamwidwe.Kumatanthauzidwa ngati kuyeza kuchuluka kwa mphamvu zomwe zimatengedwa pa yuniti imodzi ndi thupi la munthu zikakumana ndi ma radio frequency (RF) electromagnetic field.Angatanthauzenso kuyamwa kwa mitundu ina ya mphamvu ndi minofu, kuphatikizapo ultrasound.Amatanthauzidwa ngati mphamvu yotengedwa pamtundu uliwonse wa minofu ndipo imakhala ndi ma watts pa kilogalamu (W/kg).

Miyezo ya dziko la China itengera miyezo ya ku Ulaya ndipo imati: “avareji ya SAR ya 10g iliyonse yachilengedwe kwa mphindi zisanu ndi chimodzi zisapitirire 2.0W/Kg.

Ndiko kunena kuti, ndipo miyezo iyi imawunika kuchuluka kwa ma radiation a electromagnetic opangidwa ndi mafoni am'manja kwakanthawi.Zimalola kukweza pang'ono mu mphamvu yanthawi yochepa, malinga ngati mtengo wapakati sudutsa muyezo.

Ngati mphamvu yotumizira kwambiri ndi 23dBm mu TDD ndi FDD mode, foni yam'manja mu FDD imatumiza mphamvu mosalekeza.Mosiyana ndi izi, foni yam'manja mumtundu wa TDD imakhala ndi mphamvu yotumizira 30% yokha, kotero mphamvu yonse yotulutsa TDD ndi pafupifupi 5dB yocheperako kuposa FDD.

Chifukwa chake, kubweza mphamvu zotumizira za TDD mode ndi 3dB, zili pamaziko a muyezo wa SAR kuti musinthe kusiyana pakati pa TDD ndi FDD, komanso komwe kumatha kufikira 23dBm pafupifupi.