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5G "Yevechidiki" sainzi yakakurumbira: Chii chaizvo chinonzi RedCap?
Nekuenderera mberi kweiyo 3GPP R17 vhezheni, izwi idzva rave rakakurumbira zvishoma nezvishoma, ndiyo RedCap.
Chii chaizvo chinonzi RedCap? Sei zvichisumwa? Ndeupi musiyano uripo pakati payo ne5G yazvino?
Chii chinonzi RedCap?
RedCap, zita rakazara rinonzi Reduced Capability, zvinoreva kuti "kuderedzwa kugona" muchiChinese. Iyo tekinoroji nyowani chiyero chakanyanya kusimbiswa ne3GPP muchikamu che5G R17. 
Unogona kunzwa usina kujaira zita rekuti RedCap. Saizvozvo, zita rayo rekare, izvo vamwe vaverengi vangave vakanzwa nezvazvo, iri NR light (NR zvishoma).
Kunyatsotaura, RedCap inorema 5G.
5g redcap features
Zvakakodzera kutaura kuti zvimwe zvinyorwa zvepamba zvinoreva zita rakazara reRedCap seKuderedzwa Kwesimba. Izvi zviri pachena kuti zvakaipa, Capacity zvinoreva kugona, uye Kugona kugona.
Sei RedCap
5G ari kuita zvakanaka, sei kuita shanduro isingaremi? Zvikonzero zvinotevera:
Sezvatinoziva tose, 5G yakakamurwa kuita matatu makuru ekushandisa mamiriro, kureva eMBB (yakawedzerwa mobile Broadband), uRLLC (low latency uye yakakwirira kuvimbika kutaurirana), uye mMTC (Kukurukurirana kukuru kweInternet yezvinhu).
5G "Yevechidiki" Science Popularization: Chii chinonzi RedCap?
eMBB kukwidziridzwa kweMBB (Vadivelu Comedy Mobile Broadband) munguva ye4G, kutarisa pane zviratidzo zvakadai setiweki kumhanya, bandwidth simba, uye spectrum kunyatsoshanda. Iyo 5G nharembozha kutaurirana yatiri kushandisa parizvino ndeye eMBB mamiriro.
YeurLLC uye mMTC, iyo yekutanga inotarisa pakuvimbika uye latency, nepo iyo yekupedzisira inotarisa pahuwandu hwekubatanidza uye kushandiswa kwesimba. Vaviri vari kunyanya kushandira iyo indasitiri yeInternet, kusanganisira vertical indasitiri minda senge indasitiri yekugadzira uye Internet yeMotokari.
Nekuenderera mberi kwekushambadzira kwe5G, vanhu vakaona kuti matatu ari pamusoro ekushandisa mamiriro haakwanise kuzadzisa zvizere zvinodiwa, uye zvakavepo "mapofu" izvo zvisina kufukidzwa.
Munhu wese aifanira kunge akazviona panguva ino, kushandiswa kwe5G mumaindasitiri akasiyana-siyana kwakapinda munguva yekukwira. Zvinoita sezviri kuitika, asi chokwadi pane zvakawanda zvinopikisa.
Pakati pavo, chimwe chezvipingamupinyi zvikuru mutengo wakakura we5G terminal chips uye modules.
Dhizaini ye5G terminal machipisi uye modules yakaoma zvakanyanya, chikumbaridzo chetsvagurudzo nebudiriro chakakwira zvakanyanya, uye mari yekudyara yakakura. Mitengo yavo yakaramba ichikwira.
5g redcap chipset - 5g redcap use kesi - 5G AKATSANANGURWA
Kana mutengo usingakwanisi kuburuka, vashandisi havazodi kuitenga. Kana zvinhu zvikaramba zvakadai, 5G inogona kukura sei?
Uyezve, vanhu vakaonawo kuti mazhinji maindasitiri ekushandisa zviitiko haana zvakakwirira zvinodikanwa zvezviratidzo zvakaita sekumhanya. Izvo zviripo zvinokwanisa zve5G zvakapfuura zvinodiwa zvezviitiko.
Naizvozvo, indasitiri yakabvunza kana zvichibvira kuitazve chiyero pakati pemutengo uye kuita, pira zvakakodzera zvimwe zviratidzo, kuderedza zvimwe zvinodiwa, uyezve kuderedza mari shoma?
Nenzira iyi, RedCap (NR chiedza) akazvarwa.
Zvandataura pamusoro apa munozviziva here?
Izvo ndizvo, Ndakashandisa tsananguro imwechete pandakasimudzira NB-IoT/eMTC. Zvisinei, nhasi, 4G yave 5G, uye RedCap yakati wandei seNB-IoT/eMTC ku4G ye5G.
Nemamwe mashoko, NB-IoT/eMTC ishanduro yakatemerwa ye4G, uye RedCap ishanduro yakadzingwa ye5G.
Panyaya yehunyanzvi maitiro, RedCap iri pakati eMBB (Ultra Broadband) uye LPWA (Low Power Wide Area Network, NB-IoT, etc.).
RedCap inonyanya kunangana nekushandisa pakati peMBB neLPWA zvichibva pane zvinodiwa senge bandwidth, kushandiswa kwesimba, uye mutengo. Yayo bandwidth uye yekukurukurirana bit rate yakaderera pane eMBB, asi yakakwirira kudarika LPWA. Simba rayo kushandisa uye mutengo wakakwira kupfuura LPWA, asi yakaderera pane eMBB.
▲ Kugona kweRedCap kwakanyanya "balanced" (iyo yero mutsetse ndeye RedCap)
Saizvozvo, tichitarisa kubva kune yazvino inoshanda application, RedCap haisi tekinoroji yekukurumidzira.
Ndakambokuudza kuti iyo Internet yezvinhu yakakamurwa kuita kumhanya kukuru, kumhanya kwepakati uye kumhanya kwakaderera. RedCap inonyatso inoenderana nepakati kana yepakati kumhanya. Parizvino, LTE Cat.1 neKatsi.4 dzakatovhara chikamu ichi chezvinodiwa.
▲ "631" chimiro
Nyanzvi dzakaronga RedCap nezvirongwa zvenguva refu. Kunyatsotaura, RedCap yakawanda kugadzirira kubviswa kwe4G LTE mune ramangwana.
Kana 4G LTE yabuda kubva kunetiweki, NB-IoT, eMTC, Katsi.1, uye Cat.4 haichazovipo. Panguva iyi, RedCap ichaita chinotsiva.
Iyo RedCap inowana sei mutengo wakaderera?
Kuuya kuchikamu chakakosha chechinyorwa ichi, sei chaizvo RedCap yakadzingwa uye Yakaderedzwa.
Tafura iri pazasi inoratidza misiyano mikuru pakati pe5G RedCap zvishandiso uye 5G legacy madivayiri.
▲ Mufananidzo wekutanga unobva ku Ericsson (rakaturikirwa naFresh Jujube Classroom)
Chekutanga, RedCap ine diki spectral bandwidth. Mune Sub-6GHz frequency bhendi, RedCap ine bandwidth ye20MHz, iyo idiki pane 100MHz yechinyakare 5G.
Chepiri, RedCap inoderedza huwandu hwekutumira uye kugamuchira antenna uye inoderedza huwandu hweMIMO layer. Yeiyo Sub-6GHz frequency bhendi, iyo yekugamuchira ketani yeRedCap terminal inogona kudzikiswa kusvika 1 kana 2, uye inoenderana downlink MIMO inogona kuderedzwa kusvika 1-layer kana 2-layer reception. Nenzira iyi, izvo zvinodikanwa zvekugona zveredhiyo frequency transceiver uye baseband processing module yeiyo terminal inoderedzwa.
Chetatu, RedCap inotora iyo yakapusa modulation nzira ye64QAM, zvinoreva zvakare kuti zvinodikanwa zveredhiyo frequency uye baseband zvakadzikiswa zvakanyanya.
Chechina, RedCap inoshandisa hafu-duplex FDD (HD-FDD), iyo inogona kufambisa uye kugamuchira pama frequency akasiyana panguva dzakasiyana pasina kudiwa kwe duplexer. Haisi kungochengetedza mari chete, asi zvakare inowana zvirinani kugona kwekubatanidza (duplexers kazhinji yakakura), kunoderedza kushanda kwemidziyo nzvimbo, uye inobatsira kune miniaturization yemidziyo.
Cheshanu, RedCap inosvitsa dzimwe nzira dzekuchengetedza simba, zvakadai sekuwedzerwa discontinuous reception (eDRX), kushandisa nguva yakareba yekurara, kubvumira iyo terminal kuderedza kushandiswa kwemagetsi uye kuwana hupenyu hwebhatiri hwepamusoro.
3GPP 5G Kuburitswa 17 RedCap mudziyo bvunzo
Kubva pane shanduko dziri pamusoro, zvinofanotaurwa kuti zvichienzaniswa ne5G public network terminals, RedCap ichadzikisa mutengo neanenge 70% pabaseband neredhiyo frequency side. Zvinototaurwa kuti mutengo wakazara weRedCap unogona kudzikiswa ne 2-5 nguva, kana kunyange 7-8 nguva.
Iti zvakanaka, taura zvakaipa. Chii chakarasa RedCap?
Chekutanga is speed. Nekuderera kweiyo terminal bandwidth, kurerutsa kwekugamuchira MIMO, uye kuderera kweiyo yepamusoro modulation order, mwero wepamusoro weRedCap uchadonhawo zvakanyanya.
Zvinoenderana neEU peak rate yekuverenga nzira yakapihwa mu3GPP TS36.306, theoretical peak rate yeRedCap inenge 80 ~ 90Mbps.
Panyaya yekuvhara, nekuda kwekudzikira kweiyo antenna dhizaini uye nekukura kwematerminal anogona kupfeka, kufukidzwa kwadzikira zvishoma.
Panyaya yekunonoka kutapurirana, HD-FDD haigone kutumira uye kugamuchira panguva imwe chete, uye kunonoka kutapurirana kuchawedzera. Zvisinei, yemamiriro ekushandisa eRedCap, matambudziko aya ane simba shoma.
Zvakakodzera kutaura izvozvo, tichifunga nezvemashandisirwo mamiriro uye mari, 3GPP inokurudzira kuti RedCap inogona kungoshanda mune imwe frequency bhendi panguva, uye haidi kutsigira mutakuri aggregation kana mbiri yekubatanidza. (Ehe saizvozvo, yekutanga RedCap terminals inofanira kunge iri mbiri-modhi, shure kwezvose, 5G coverage haina kukwana.)
Kuda kukanganwa kutaura mutengo. Maererano nekufanotaura, mutengo weRedCap's modules uchadzorwa pakati 100-200 yuan (RMB), iyo yakaderera zvakanyanya kupfuura ikozvino 5G modules iyo inodhura mazana akati wandei yuan, asi yakakwirira kupfuura iyo NB-IoT modules inodhura makumi eyuan.
Yakajairika bhizinesi mamiriro eRedCap
Parizvino, maererano netsanangudzo yakajairika ye 3GPP R17, RedCap inotsigira matatu makuru ebhizinesi mamiriro: midziyo inopfekwa, maindasitiri sensors uye vhidhiyo yekutarisa.
Izvo zvinodikanwa zve network mune izvi zviitiko zvitatu zvinoratidzwa mutafura inotevera:
▲ Mufananidzo wekutanga unobva ku Ericsson (rakaturikirwa naFresh Jujube Classroom)
Zvishandiso zvinopfekeka, akadai sewachi dzakangwara.
5G redcap
Parizvino, mainstream smart wachi pamusika inotsigira 4G chete, kwete 5g. Nekuti mutengo we5G chips wakanyanya, kupisa kukuru, uye kumhanya kwepamusoro kweMBB kuri kushomeka kune saizi yescreen yewachi.
Iko kushandiswa kweRedCap kunogona kuzadzisa zvizere vhidhiyo yekufona zvinodiwa zve smart wachi. Kwete chete iyo downlink bandwidth yakakwana, asi iyo uplink bandwidth zvakare yakakwirira kupfuura LTE Cat.1.
Pamusoro pe, RedCap inogonawo kusangana nezvinodiwa zve smart wachi maererano nehukuru uye kushandiswa kwesimba.
Rini iyo RedCap ichave inowanikwa mune zvekutengesa?
Muna Chikumi 2019, pa 3GPP RAN #84 musangano, RedCap yakaunzwa kumunhu wese kekutanga seR17 Yekudzidza Item (tsvakurudzo chirongwa).
Muna March 2021, 3GPP yakabvumidza zviri pamutemo NR RedCap EU kumira (Basa Item) mvumo yeprojekiti. Maererano nehurongwa, apo 3GPP R17 yakaomeswa nechando, iyo standardization yeRedCap ichapedzwa.
Parizvino, nekuda kweiyo korona itsva denda, 3GPP yakamisa chirongwa cheR17 ne 9 mwedzi. Maererano nezvino kufambira mberi, 3GPP R17 ichave nechando muna Chikumi 2022. Nemamwe mashoko, iyo standardization yeRedCap ichapedzwa muna Chikumi gore rinouya.
▲ 3GPP R17 timetable
Maererano nezvakaitika, mushure mekuenzanisa, zvinotora kanenge 1-2 makore ekutanga maindasitiri. Naizvozvo, zvinotarisirwa kuti nepakati pe 2023 (kana mangwanani-ngwanani 2024), tichaona zvigadzirwa zvekutanga zvekutengesa zveRedCap.
Parizvino, makambani ekuChina, kusanganisira Ziguang Zhanrui, vari kuita zvirongwa zveRedCap, uye zvinotendwa kuti machipisi ekutengesa achatangwa nekukurumidza sezvinobvira. Nemachipisi, pachava nemamodules uye zvigadzirwa.
