{"id":8941,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/jak-funguje-lte-explained-simply\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"jak-funguje-lte-explained-simply","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguje-lte-explained-simply\/","title":{"rendered":"Jak funguje LTE. Explained Simply"},"content":{"rendered":"
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Is 4G faster than LTE?<\/div>\n
4G is significantly faster. LTE offers only 100 Mbps, while true 4G offers up to 1,000 Mbps. However, if we take a look at the LTE-A speeds, the difference disappears as it also offers 1,000 Mbps. As a result, there is no clear answer as it depends on which technology you are using, LTE or LTE-A.<\/div>\n
\n\t\t\t\t\t Dal\u0161\u00ed informace najdete na<\/span> www.uctel.co.uk<\/a>\n\t\t\t\t<\/div>\n<\/p><\/div>\n
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Z\u016fstat ve spojen\u00ed je v dne\u0161n\u00edm rychl\u00e9m sv\u011bt\u011b nezbytn\u00e9 a mobiln\u00ed s\u00edt\u011b jsou kl\u00ed\u010dem k tomu, abychom mohli komunikovat a p\u0159istupovat k informac\u00edm odkudkoli. LTE neboli Long-Term Evolution je jednou z nejpou\u017e\u00edvan\u011bj\u0161\u00edch technologi\u00ed mobiln\u00edch s\u00edt\u00ed. Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 fungov\u00e1n\u00edm a p\u0159enosem LTE a porovn\u00e1v\u00e1 jej\u00ed rychlost a mo\u017enosti s jin\u00fdmi s\u00ed\u0165ov\u00fdmi technologiemi, jako jsou 4G a 5G. <\/p>\n

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LTE je bezdr\u00e1tov\u00e1 komunika\u010dn\u00ed technologie, kter\u00e1 nab\u00edz\u00ed mobiln\u00edm za\u0159\u00edzen\u00edm rychl\u00fd p\u0159enos dat. Oproti sv\u00fdm p\u0159edch\u016fdc\u016fm m\u00e1 poskytovat vy\u0161\u0161\u00ed rychlost stahov\u00e1n\u00ed a odes\u00edl\u00e1n\u00ed dat, ni\u017e\u0161\u00ed latenci a podporovat v\u00edce p\u0159ipojen\u00fdch za\u0159\u00edzen\u00ed. LTE toho dosahuje d\u00edky nejmodern\u011bj\u0161\u00edm metod\u00e1m modulace, efektivn\u00edmu vyu\u017eit\u00ed spektra a s\u00ed\u0165ov\u00e9 architektu\u0159e ur\u010den\u00e9 pro p\u0159enos dat. <\/p>\n

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P\u0159i vys\u00edl\u00e1n\u00ed s\u00edt\u00ed LTE se kombinuj\u00ed r\u00e1diov\u00e9 vlny a s\u00ed\u0165ov\u00e1 infrastruktura. S\u00ed\u0165ovou architekturu tvo\u0159\u00ed \u0159ada z\u00e1kladnov\u00fdch stanic, \u010dasto naz\u00fdvan\u00fdch bun\u011b\u010dn\u00e9 v\u011b\u017ee, kter\u00e9 jsou pe\u010dliv\u011b rozm\u00edst\u011bny tak, aby zaji\u0161\u0165ovaly pokryt\u00ed ur\u010dit\u00e9 oblasti. Tyto z\u00e1kladnov\u00e9 stanice jsou propojeny s p\u00e1te\u0159n\u00ed s\u00edt\u00ed, kter\u00e1 \u0159\u00edd\u00ed, jak jsou data sm\u011brov\u00e1na mezi r\u016fzn\u00fdm hardwarem a slu\u017ebami. V s\u00edti LTE komunikuje za\u0159\u00edzen\u00ed u\u017eivatele s nejbli\u017e\u0161\u00ed z\u00e1kladnovou stanic\u00ed, kdy\u017e chce proch\u00e1zet internet nebo volat. V\u00fdm\u011bnou \u0159\u00eddic\u00edch sign\u00e1l\u016f se za\u0159\u00edzen\u00ed a z\u00e1kladnov\u00e1 stanice propoj\u00ed, a jakmile je spojen\u00ed nav\u00e1z\u00e1no, mohou b\u00fdt mezi za\u0159\u00edzen\u00edm a s\u00edt\u00ed odes\u00edl\u00e1na data. <\/p>\n

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Orthogonal Frequency Division Multiplexing neboli OFDM je metoda, kterou LTE pou\u017e\u00edv\u00e1 k p\u0159enosu dat. Dostupn\u00e9 frekven\u010dn\u00ed spektrum je rozd\u011bleno na n\u011bkolik d\u00edl\u010d\u00edch nosn\u00fdch, z nich\u017e ka\u017ed\u00e1 p\u0159en\u00e1\u0161\u00ed mal\u00e9 mno\u017estv\u00ed dat. T\u00edm se efektivn\u011b vyu\u017e\u00edv\u00e1 dostupn\u00e9 spektrum a sni\u017euje se ru\u0161en\u00ed sign\u00e1lu. <\/p>\n

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Nyn\u00ed probereme, zda je LTE rychlej\u0161\u00ed ne\u017e 4G. Vzhledem k tomu, \u017ee LTE je pova\u017eov\u00e1no za technologii 4G, term\u00edny „4G“ a „4G“ se \u010dasto pou\u017e\u00edvaj\u00ed zam\u011bniteln\u011b. Ne ka\u017ed\u00e1 s\u00ed\u0165 4G je v\u0161ak LTE. V porovn\u00e1n\u00ed se star\u0161\u00edmi technologiemi 3G poskytuje LTE vy\u0161\u0161\u00ed rychlosti a je vyrobena v souladu se specifikacemi Mezin\u00e1rodn\u00ed telekomunika\u010dn\u00ed unie (ITU) pro s\u00edt\u011b 4G. V d\u016fsledku toho lze LTE pova\u017eovat za obecn\u011b rychlej\u0161\u00ed ne\u017e 4G. <\/p>\n

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A kone\u010dn\u011b, je LTE lep\u0161\u00ed ne\u017e 5G? A\u010dkoli je pro n\u00e1s LTE ji\u017e dlouho u\u017eite\u010dnou technologi\u00ed, 5G je dal\u0161\u00ed generac\u00ed technologie mobiln\u00edch s\u00edt\u00ed a nab\u00edz\u00ed je\u0161t\u011b vy\u0161\u0161\u00ed rychlosti, ni\u017e\u0161\u00ed latenci a v\u011bt\u0161\u00ed kapacitu. S\u00edt\u011b 5G podporuj\u00ed nov\u011b vznikaj\u00edc\u00ed technologie v\u010detn\u011b gadget\u016f internetu v\u011bc\u00ed (IoT), autonomn\u00edch vozidel a virtu\u00e1ln\u00ed reality. Zav\u00e1d\u011bn\u00ed 5G je st\u00e1le v po\u010d\u00e1te\u010dn\u00ed f\u00e1zi, proto je z\u00e1sadn\u00ed m\u00edt na pam\u011bti, \u017ee ne v\u0161echna m\u00edsta k n\u011bmu mohou m\u00edt p\u0159\u00edstup. LTE je st\u00e1le spolehlivou a \u010dasto pou\u017e\u00edvanou s\u00ed\u0165ovou technologi\u00ed. <\/p>\n

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Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee LTE je bezdr\u00e1tov\u00e1 komunika\u010dn\u00ed technologie, kter\u00e1 umo\u017e\u0148uje mobiln\u00edm za\u0159\u00edzen\u00edm pos\u00edlat data vysokou rychlost\u00ed. Kombinuje nejmodern\u011bj\u0161\u00ed modula\u010dn\u00ed metody s efektivn\u00edm vyu\u017eit\u00edm spektra a s\u00ed\u0165ovou architekturou ur\u010denou pro p\u0159enos dat. LTE, kter\u00e1 je technologi\u00ed 4G, je rychlej\u0161\u00ed ne\u017e p\u0159edchoz\u00ed technologie 3G. P\u0159esto\u017ee 5G je dal\u0161\u00ed generac\u00ed technologie mobiln\u00edch s\u00edt\u00ed, LTE je st\u00e1le b\u011b\u017en\u011b pou\u017e\u00edvan\u00e1 a d\u016fv\u011bryhodn\u00e1 a nab\u00edz\u00ed je\u0161t\u011b vy\u0161\u0161\u00ed rychlosti a v\u011bt\u0161\u00ed kapacitu.<\/p><\/div>\n

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FAQ<\/div>\n
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Je LTE rychlej\u0161\u00ed ne\u017e 3G?<\/div>\n

Ve srovn\u00e1n\u00ed s technologi\u00ed 3G (t\u0159et\u00ed generace) je LTE (Long-Term Evolution) ve skute\u010dnosti rychlej\u0161\u00ed. Ve srovn\u00e1n\u00ed se s\u00edt\u011bmi 3G nab\u00edz\u00ed LTE vy\u0161\u0161\u00ed rychlost p\u0159enosu dat a vy\u0161\u0161\u00ed v\u00fdkon s\u00edt\u011b. LTE obvykle poskytuje mnohon\u00e1sobn\u011b vy\u0161\u0161\u00ed rychlost stahov\u00e1n\u00ed ne\u017e 3G, i kdy\u017e p\u0159esn\u00e1 rychlost se m\u016f\u017ee li\u0161it v z\u00e1vislosti na \u0159ad\u011b faktor\u016f, jako je pokryt\u00ed s\u00edt\u011b a mo\u017enosti za\u0159\u00edzen\u00ed. Ve srovn\u00e1n\u00ed s u\u017eivateli s\u00edt\u00ed 3G to znamen\u00e1, \u017ee u\u017eivatel\u00e9 s\u00edt\u00ed LTE mohou vyu\u017e\u00edvat plynulej\u0161\u00ed streamov\u00e1n\u00ed, rychlej\u0161\u00ed proch\u00e1zen\u00ed internetu a rychlej\u0161\u00ed stahov\u00e1n\u00ed. <\/p>\n<\/div>\n

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Je LTE tot\u00e9\u017e co 5G?<\/div>\n

Ne, LTE (Long-Term Evolution) a 5G (Fifth Generation) nejsou zam\u011bniteln\u00e9 pojmy. S c\u00edlem zv\u00fd\u0161it v\u00fdkon s\u00edt\u011b a poskytnout vy\u0161\u0161\u00ed rychlost p\u0159enosu dat ne\u017e p\u0159edchoz\u00ed s\u00edt\u011b 3G byla vyvinuta bezdr\u00e1tov\u00e1 komunika\u010dn\u00ed technologie LTE. Nov\u00e1 generace bezdr\u00e1tov\u00e9 technologie neboli 5G naproti tomu nab\u00edz\u00ed je\u0161t\u011b vy\u0161\u0161\u00ed rychlosti, ni\u017e\u0161\u00ed latenci a schopnost p\u0159ipojit v\u00edce za\u0159\u00edzen\u00ed najednou. A\u010dkoli LTE i 5G nab\u00edzej\u00ed bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed, 5G p\u0159edstavuje oproti LTE v\u00fdrazn\u00e9 zlep\u0161en\u00ed z hlediska rychlosti, kapacity a mo\u017enost\u00ed. <\/p>\n<\/div>\n

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Jak proud\u00ed data LTE?<\/div>\n

K p\u0159enosu dat prost\u0159ednictv\u00edm mobiln\u00edch s\u00edt\u00ed se pou\u017e\u00edv\u00e1 technika bezdr\u00e1tov\u00e9 komunikace s n\u00e1zvem LTE (Long-Term Evolution). V\u00e1\u0161 chytr\u00fd telefon se p\u0159ipojuje k internetu a k p\u0159\u00edstupu k datov\u00fdm slu\u017eb\u00e1m pou\u017e\u00edv\u00e1 zjednodu\u0161en\u011b \u0159e\u010deno LTE. Datov\u00fd tok LTE obsahuje \u0159adu z\u00e1sadn\u00edch f\u00e1z\u00ed, mezi kter\u00e9 pat\u0159\u00ed: V\u00e1\u0161 smartphone nebo jin\u00e1 za\u0159\u00edzen\u00ed s funkc\u00ed LTE slou\u017e\u00ed v tomto spojen\u00ed jako u\u017eivatelsk\u00e9 za\u0159\u00edzen\u00ed. <\/p>\n

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1. Va\u0161e za\u0159\u00edzen\u00ed nav\u00e1\u017ee spojen\u00ed s nejbli\u017e\u0161\u00ed eNodeB, kdy\u017e jej zapnete a povol\u00edte LTE. \u0158\u00edzen\u00ed r\u00e1diov\u00fdch prost\u0159edk\u016f (RRC) Spojen\u00ed: Po nav\u00e1z\u00e1n\u00ed spojen\u00ed s eNodeB se vytvo\u0159\u00ed spojen\u00ed RRC. T\u00edmto spojen\u00edm je \u0159\u00edzena komunikace mezi UE a s\u00edt\u00ed LTE. <\/p>\n

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3. P\u0159enos dat: P\u0159i zad\u00e1v\u00e1n\u00ed datov\u00e9ho po\u017eadavku, nap\u0159\u00edklad p\u0159i prohl\u00ed\u017een\u00ed webov\u00fdch str\u00e1nek nebo streamov\u00e1n\u00ed videa, jsou data rozd\u011blena do mal\u00fdch jednotek naz\u00fdvan\u00fdch pakety. Za\u0159\u00edzen\u00ed tyto pakety p\u0159en\u00e1\u0161\u00ed do s\u00edt\u011b LTE prost\u0159ednictv\u00edm nav\u00e1zan\u00e9ho spojen\u00ed RRC. Datov\u00e9 pakety jsou po dosa\u017een\u00ed eNodeB ve \u010dtvrt\u00e9m kroku, sm\u011brov\u00e1n\u00ed paket\u016f, p\u0159ed\u00e1ny do p\u00e1te\u0159n\u00ed s\u00edt\u011b LTE. Z\u00e1kladn\u00ed s\u00ed\u0165, kter\u00e1 slou\u017e\u00ed jako br\u00e1na, pakety p\u0159epos\u00edl\u00e1 na m\u00edsto ur\u010den\u00ed. <\/p>\n

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5. Rozvinut\u00e9 paketov\u00e9 j\u00e1dro (EPC): J\u00e1dro s\u00edt\u011b LTE, EPC, \u0159\u00edd\u00ed tok dat. Mezi jej\u00ed sou\u010d\u00e1sti pat\u0159\u00ed subjekt pro spr\u00e1vu mobility (MME), obslu\u017en\u00e1 br\u00e1na (SGW) a br\u00e1na paketov\u00e9 datov\u00e9 s\u00edt\u011b (PGW). <\/p>\n

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6. Ov\u011b\u0159ov\u00e1n\u00ed a zabezpe\u010den\u00ed: P\u0159ed zah\u00e1jen\u00edm p\u0159enosu dat proch\u00e1z\u00ed UE autentiza\u010dn\u00edm postupem pro potvrzen\u00ed sv\u00e9 identity. Krom\u011b toho se k ochran\u011b dat b\u011bhem p\u0159enosu pou\u017e\u00edvaj\u00ed metody \u0161ifrov\u00e1n\u00ed. 7. Zpracov\u00e1n\u00ed dat: SGW a PGW v EPC zpracov\u00e1vaj\u00ed p\u0159ijat\u00e9 pakety. Zat\u00edmco PGW navazuje spojen\u00ed s vn\u011bj\u0161\u00edmi s\u00edt\u011bmi, jako je internet, SGW spravuje mobilitu. Kdy\u017e datov\u00e9 pakety doraz\u00ed do PGW, jsou p\u0159ed\u00e1ny sv\u00e9mu kone\u010dn\u00e9mu c\u00edli, nap\u0159\u00edklad webov\u00e9mu serveru nebo aplika\u010dn\u00edmu serveru. <\/p>\n

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8. Extern\u00ed s\u00edt\u011b. <\/p>\n

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9. P\u0159\u00edjem dat: Pakety po\u017eadovan\u00fdch dat jsou vr\u00e1ceny do UE. Tyto pakety p\u0159ij\u00edm\u00e1 UE prost\u0159ednictv\u00edm eNodeB po pr\u016fchodu s\u00edt\u00ed LTE. 10. Rekonstrukce dat: UE znovu sestav\u00ed p\u0159ijat\u00e9 pakety, aby znovu vytvo\u0159il p\u016fvodn\u00ed data. Pot\u00e9 se tato rekonstruovan\u00e1 data, a\u0165 u\u017e se jedn\u00e1 o webovou str\u00e1nku, video nebo jin\u00fd typ materi\u00e1lu, zobraz\u00ed na obrazovce za\u0159\u00edzen\u00ed. <\/p>\n

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Datov\u00fd tok LTE obecn\u011b zahrnuje nav\u00e1z\u00e1n\u00ed spojen\u00ed, rozd\u011blen\u00ed dat do paket\u016f, jejich p\u0159esun j\u00e1drem s\u00edt\u011b LTE, zaji\u0161t\u011bn\u00ed bezpe\u010dnosti, zpracov\u00e1n\u00ed dat a jejich kone\u010dnou rekonstrukci pro va\u0161e pou\u017eit\u00ed. V s\u00edt\u00edch LTE je d\u00edky t\u00e9to efektivn\u00ed metod\u011b mo\u017en\u00fd rychl\u00fd a spolehliv\u00fd p\u0159enos dat.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Is 4G faster than LTE? 4G is significantly faster. LTE offers only 100 Mbps, while true 4G offers up to 1,000 Mbps. However, if we take a look at the LTE-A speeds, the difference disappears as it also offers 1,000 Mbps. As a result, there is no clear answer as it depends on which technology … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":1869,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1552],"tags":[],"class_list":["post-8941","post","type-post","status-publish","format-standard","hentry","category-bezdratova-technologie"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/8941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/1869"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=8941"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/8941\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=8941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=8941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=8941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}