PaMWC2019, Qualcomm yakaratidza vhidhiyo ine zviitiko zvinonakidza zvekushandisa yekunze 5G mmWave network, kunze kwehofisi uye, mune dzimwe nguva, mukati. Ngatinyatsodziongororai.
Mufananidzo uri pamusoro unoratidza iyo Qualcomm campus muSan Diego, California - zvivakwa zvitatu uye zviteshi zvepasi zve5G neLTE network zvinoonekwa. 5G kufukidzwa mu28 GHz bhendi (millimeter wave band) inopihwa neatatu 5G NR maseru madiki - imwe yakaiswa padenga reimba, imwe pamadziro echivako, uye yechitatu muchivanze pane pombi inomira. Kune zvakare LTE macro cell yekupa campus yekuvhara.
Iyo 5G network iNSA network, zvichireva kuti inotsamira pane yakakosha uye zvimwe zviwanikwa zveLTE network. Izvi zvinogonesa kuwedzera kuvimbika kwekubatanidza nekuti muzviitiko apo mudziyo wemushandisi uri kunze kwe5G mmWave yekuvhara, kubatana hakukanganiswe, asi kunochinja kuLTE (fallback) modhi uye wozodzokera ku5G modhi kana zvave kugona zvakare.
Kuratidza mashandiro etiweki iyi, mudziyo wekunyoresa bvunzo unoshandiswa zvichibva paQualcomm X50 5G modem, inotsigira ese ari maviri sub6 uye mmWave frequency. Chishandiso chine 3 millimeter-wave antenna modules, maviri ayo akaiswa kuruboshwe uye kurudyi kumagumo eiyo terminal, uye yechitatu kumucheto wepamusoro.
Iyi dhizaini yeterminal uye network inovimbisa kuvimbika kwepamusoro kwekubatanidza kunyangwe muzviitiko apo danda kubva ku5G base station antenna yakavharwa neruoko rwemunyoreri, muviri kana zvimwe zvipingamupinyi. Hunhu hwekubatanidza hunenge hwakazvimiririra kune kutaridzika kweiyo terminal munzvimbo - kushandiswa kwematatu akapatsanurwa antenna modules inoumba reradiation maitiro eiyo terminal antenna iri padyo nekutenderera.
Izvi ndizvo zvinoita gNB - 5G diki sero ine 256-element flat dijitari inoshanda antenna yemamilimita renji. Iyo network inoratidza yakakwira spectral downlink kunyatsoshanda kwesese chiteshi uye terminal - paavhareji ichitarisira 4 bps pa1 Hz yebhesi chiteshi uye ingangoita 0.5 bps pa1 Hz yeterminal.
Iyo dhairekitori inoratidza kuti kutaurirana neiyo terminal kunopihwa neanoshanda danda nhamba 6, nepo chiteshi chakagadzirira kushandura kutaurirana neiyo terminal kuburikidza nebeam 1 kana ma paramita edanda 6 akadzikira, semuenzaniso, nekuda kwekuvharirwa kwayo nechimwe chipingamupinyi. Iyo base station inogara ichienzanisa kunaka kwekutaurirana padanda rinoshanda uye pane mamwe matanda, kusarudza akanakisa mumiriri kubva kune anobvira.
Uye izvi ndizvo zvinoita mamiriro ezvinhu padivi rekupedzisira.
Zvinogona kuoneka kuti antenna module 2 yave kushanda, nekuti parizvino inopa yakanakisa kutaurirana paramita. Asi kana chimwe chinhu chichichinja, semuenzaniso, munyoreri anofambisa terminal kana zvigunwe kuti zvivhare module 2 kubva kugNB beam, iyo imwe yemamodule inogona kuona kushanda neiyo 5G base station mu "configuration" itsva yemaitiro ekushandisa. rinobva raitwa.
Akarebesa "ellipses" ndiwo mapatani ematanho eiyo terminal's radiation pateni.
Izvi zvinovimbisa kufamba, kuvharika uye yakavimbika yekubatanidza.
Kubatana kunovimbika mune "mutsara wekuona" modhi ye base chiteshi uye terminal antenna, uye mumamiriro ezviratidzo zvinoratidzwa.
Muenzaniso 1: Mutsara wekuona
Ndokumbira utarise kuti imwe antenna module mumudziyo iri kushanda parizvino.
Uye hezvino izvo zvinofanirwa kuitika kana uchichinjira kune danda rakaratidzwa zvakare.
Isu tinoona nhamba yakasiyana yedanda rinoshanda; kutaurirana kunopihwa neimwe antenna module. (Simulated data).
Mamiriro ezvinhu 2. Kushanda pakuongororazve
Iko kugona kushanda nematanda anoratidzwa zvakanyanya kuwedzera iyo yakaumbwa 5G yekuvhara nzvimbo mumillimeter renji.
Panguva imwecheteyo, iyo LTE network inopa basa reiyo nheyo yakavimbika, inogara yakagadzirira kutora sevhisi kune munyoreri panguva dzaanosiya 5G nzvimbo yekuvhara kana kuendesa munyoreri kune 5G network mumamiriro ezvinhu apo izvi zvinogoneka.
Kuruboshwe kune munyoreri achipinda muchivako. Basa rayo rinopihwa negNB 5G. Kurudyi kune munyoreri ari muchivakwa; parizvino, iyo LTE network irikuibata.
Mamiriro ezvinhu achinja. Munhu anofamba muchivako achiri kushandiswa nesero re5G, asi munhu anosiya chivako, mushure mokuzarura gonhi repamberi re5G-kupera simba, anogamuchirwa ne5G network uye ikozvino inoshandiswa nayo.
Uye zvino munhu ari kuruboshwe, akapinda muchivako uye akavhara danda kubva pachigadziko che5G kuenda kumugumo wake nemuviri wake, anoshandurwa kushanda neLTE network, asi munhu akabuda muchivako iye zvino "anotungamirirwa" ne Beam kubva ku5G base.
Mune zvimwe zviitiko, yekunze 5G mmWave network inogonawo kuwanikwa mukati. Izvi zvichatsigirawo kuratidzwa kwakawanda kubva kune zvivakwa kana mamiriro ekunze pakati peantennas achichinja.
Zvinogona kuoneka kuti chiratidzo chakatanga kugamuchirwa kubva pachigadziko chiteshi kuburikidza ne "direct beam".
Zvadaro, interlocutor akauya ndokuvhara danda, asi 5G yekubatanidza haina kukanganiswa nekuchinja kune danda rinoratidza kubva pamusoro pechivako chehofisi chiri pedyo.
Aya ndiwo mashandiro anoita network ye5G mumillimeter wave frequency renji. Ziva kuti kuyedza hakuratidzi kuti 5G terminal yekutevera inogona kutamiswa kubva kune imwe 5G base station kuenda kune imwe (mobile handover). Iyi modhi haina kuedzwa mukuyedza iyi.
Source: www.habr.com