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5G "Hluas Tsab Cai" kev kawm nrov: Xyov yog RedCap?
Nrog lub continuous advancement ntawm lub 3GPP R17 version, Ib lub sij hawm tshiab muaj maj mam ua nrov, Uas yog RedCap.
Xyov yog RedCap? Vim li cas nws nkag tau? Qhov txawv ntawm nws thiab tam sim no 5G?
What is RedCap?
RedCap, Daim ntawv qhia txog lub npe yog Txo Peev xwm, nws txhais tau tias "muaj peev xwm txo tau" Suav suav. Nws yog ib tug tshiab tshuab txheem tshwj xeeb uas tsim los ntawm 3GPP hauv lub 5G R17 theem. 
Tej zaum koj yuav xav tias unfamiliar nrog lub npe RedCap. Qhov tseeb, nws lub npe yav dhau los, Ib txhia nyeem tej zaum yuav tau hnov ntawm, NR teeb (NR lite).
Muab nws bluntly, RedCap yog lightweight 5G.
5g redcap nta
Nws puas tsim nyog mentioning tias ib co articles xa mus rau daim ntawv qhia txog lub npe ntawm RedCap li txo peev xwm. Qhov no yog obviously tsis ncaj ncees lawm, Peev xwm txhais tau tias muaj peev xwm, thiab muaj peev xwm ua tau.
Vim li cas RedCap
5G ua zoo, Vim li cas thiaj ua ib lightweight version? Yog vim li cas yog raws li nram no:
Raws li peb yeej paub, 5G faib ua peb daim ntawv thov scenarios loj scenarios, eMBB (enhanced mobile broadband), uRLLC (tsis muaj latency thiab siab reliability sib txuas lus), thiab mMTC (Internet loj heev ntawm tej yam kev sib txuas lus).
5G "Hluas Tsab Cai" Science Popularization: What is RedCap?
eMBB yog ib qho upgrade ntawm MBB (Mobile Broadband) Hauv lub era 4G era, focusing rau indicators xws li network speed, bandwidth peev xwm, thiab spectrum efficiency. Tus 5G txawb xov tooj sib txuas lus peb tam sim no siv belongs rau lub eMBB scenario.
Rau uRLLC thiab mMTC, Tus qub tsom rua reliability thiab latency, Thaum lub tom kawg tsom rua cov kev sib txuas thiab zog noj. Ob leeg mas muab rau neeg noj qhov kev lag luam Internet, Xws li kev lag luam vertical teb xws li industrial manufacturing thiab Internet ntawm tsheb.
Nrog lub continuous commercialization ntawm 5G, Cov neeg pom tias saum peb daim ntawv thov scenarios tseem tsis tau siab raws li qhov xav tau, thiab lawm "tej qhov muag tsis pom kev" uas tsis tau them.
Sawv daws yuav tsum tau pom tias ntawm no theem, Daim ntawv thov ntawm 5G ntau industries muaj nkag mus rau lub sij hawm nce toj. No mas, yuav tsum nyob rau hauv daim ntawv qhia txog viav vias, Tiam sis qhov tseeb muaj ntau kuj.
Ntawm lawv, Yog ib qhov biggest obstacles yog tus nqi ntawm 5G davhlau ya nyob twg chips thiab modules.
Tus tsim ntawm 5G davhlau ya nyob twg thiab modules yog tsis tshua muaj neeg txoj, Cov Harbor rau kev tshawb fawb thiab kev loj hlob yog ib qho tsis tshua muaj neeg siab, thiab cov nqi peev yog loj loj. Lawv cov nqi muaj kuj tseem nyob siab.
5g redcap chipset - 5g redcap siv cov neeg mob - 5G PIAV
Yog hais tias tus nqi tsis tuaj, Cov neeg siv yuav yeej tsis xav yuav nws. Yog hais tias tej yam mus li no, yuav ua li cas thiaj li yuav muaj 5G thiaj li yuav pib mob?
ntxiv thiab, Neeg kuj pom tias feem ntau kev lag luam scenarios tsis muaj siab yuav tsum tau indicators xws li ceev. Cov peevxwm uas twb muaj lawm ntawm 5G muaj exceeded qhov xav tau scenarios.
Yog li ntawd, vim, Qhov kev lag luam nug seb nws tseem tau redo qhov nqi koj tshuav ntawm tus nqi thiab kev kawm, tsim nyog sacrifice ib co indicators, ib yam nkaus thiab, thiab ces txo tus nqi me nyuam?
Ua li no, RedCap (NR teeb) yug.
Kuv hais saum suab paub rau koj?
Yog txoj kev, Kuv siv tib piav thaum kuv popularized NB-IoT/eMTC. tiam sis, Hnub no, 4G kuj yog 5G, thiab RedCap yog ib ntsis zoo li NB-IoT/eMTC rau 4G rau 5G.
Ua txhais tau tias, NB-IoT/eMTC yog ib tug castrated version ntawm 4G, thiab RedCap yog ib tug castrated version ntawm 5G.
Saib raws cov cim xeeb ceem, RedCap yog ntawm eMBB (Ultra Broadband) thiab LPWA (Tsis muaj hwj huam dav Network, NB-IoT, li ntawd.).
RedCap mas tswj daim ntawv thov ntawm eMBB thiab LPWA raws li yuav tsum tau xws li bandwidth, hwj huam noj, thiab nqi. Nws bandwidth thiab sib txuas lus me ntsis yog tsawg dua eMBB, Tab sis ntau dua LPWA. Nws cov hwjchim noj thiab raug nqi ntau dua LPWA, tiam sis tsawg dua eMBB.
▲ Muaj peev xwm redCap yog heev "tshuav nyiaj li cas" (Cov kab daj yog RedCap)
Qhov tseeb, judging los ntawm daim ntawv thov tam sim no, RedCap tsis yog ib lub tshuab ceev heev.
Kuv tau hais rau koj ua ntej tias internet ntawm tej yam uas faib ua siab ceev, nruab nrab speed thiab tsis speed. RedCap ua tau corresponds rau nruab nrab los yog nruab nrab speed. tam sim no, LTE Cat.1 thiab Cat.4 muaj twb them qhov no ib feem ntawm qhov thov.
▲ "631" qauv
Cov kws txawj npaj tseg RedCap nrog lub hom phiaj mus sij hawm ntev. Muab nws bluntly, RedCap yog npaj rau lub ntsoos ntsoos ntawm 4G LTE yav tom ntej.
Thaum 4G LTE thim ntawm lub network, NB-IoT, eMTC, Cat.1, thiab Miv.4 yuav tsis nyob ua ib ke. lub sij hawm no, RedCap yuav ua si ib lub luag hauj lwm hloov.
RedCap cuag nqi tsawg?
Los rau qhov tseem ceeb ntawm tsab xov xwm no, Li cas raws nraim yog RedCap castrated thiab txo.
Cov lus hauv qab no qhia tau hais tias qhov txawv ntawm 5G RedCap li thiab 5G txojsia li.
▲ Daim duab thawj yog los ntawm Ericsson (txhais lus los ntawm cov chav kawm ntawv tshiab Jujube Chav kawm ntawv)
Thawj, RedCap muaj ib spectral bandwidth. Nyob rau hauv cov Sub-6GHz frequency qhab, RedCap muaj ib bandwidth ntawm 20MHz, Uas yog me dua lub 100MHz ntawm tsoos 5G.
Fiab, RedCap txo cov transmit thiab tau txais antennas thiab txo cov MIMO layers. Rau lub Sub-6GHz frequency qhab, Tau saw hlau ntawm lub RedCap davhlau ya nyob twg yuav raug txo rau 1 Lossis 2, thiab tus corresponding downlink MIMO yuav raug txo rau 1-txheej los yog 2-txheej txais tos. Ua li no, Lub peev xwm yuav tsum tau rau lub xov tooj cua frequency transceiver thiab tus baseband txheej txheem module ntawm lub davhlau ya nyob twg yog txo.
thib peb, RedCap adopts cov modulation yooj yim modulation txoj kev ntawm 64QAM, Uas kuj txhais tau hais tias qhov yuav tsum tau xov tooj cua frequency thiab baseband yog heev txo.
plaub, RedCap siv ib nrab-duplex FDD (HD-FDD), Uas yuav transmit thiab tau txais ntau zaus sib txawv lub sij hawm sib txawv tsis xav tau ib duplexer. Nws tsis tsuas txuag nqi, Tiam sis kuj tau zoo integration muaj peev xwm (duplexers feem ntau kuj lom zem ntau), txo qhov uas yuav ua tau kom cov khoom siv, thiab yog conducive rau miniaturization khoom.
Fifth, RedCap introduces ib txhia txhais tau tias txuag fais fab tuag, Xws li enhanced discontinuous txais tos (eDRX), siv sij hawm ntev tshaj 1, Tas lub davhlau ya nyob twg los txo hwj huam noj thiab tau txais roj teeb lub neej.
3GPP 5G tso tawm 17 RedCap ntaus ntawv kuaj
Raws li cov kev hloov saum toj no, Nws yog predicted tias piv rau 5G pej xeem network terminals, RedCap yuav txo tus nqi los ntawm txog 70% Nyob rau puag thiab xov tooj cua frequency sab. Nws txawm hais tias tag nrho cov nqi ntawm RedCap yuav raug txo los ntawm 2-5 Zaug, txawm 7-8 Zaug.
Hais zoo, hais phem. Dab tsi ua RedCap poob?
Thawj yog speed. Nrog qhov nce ntawm davhlau bandwidth, Qhov yooj yim ntawm MIMO txais tos, thiab qhov nce ntawm qhov kev txiav txim siab ntau tshaj, Lub ncov tus nqi ntawm RedCap yuav kuj nco ho.
Raws li lub UE ncov tus nqi calculation txoj kev muab rau 3GPP TS36.306, Theoretical ncov tus nqi ntawm RedCap yog li 80-90Mbps.
Saib raws cov kev pab them nqi kho mob, Vim lub shrinkage ntawm tus antenna tsim thiab qhov luaj li cas ntawm wearable terminals, Cov kev pab muaj shrunk ib nyuag.
Saib raws transmission qeeb, HD-FDD yuav xa tsis tau thiab tau txais tib lub sijhawm, thiab tus transmission qeeb yuav ua rau kom. tiam sis, Rau daim ntawv thov scenarios ntawm RedCap, Cov teeb meem no muaj feem me ntsis.
Nws puas tsim nyog mentioning tias, xav txog daim ntawv thov scenarios thiab cov nqi, 3GPP proposes tias RedCap yuav tsuas ua hauj lwm hauv ib frequency qhab ib lub sij hawm, thiab tsis tas yuav txhawb carrier aggregation los yog dual connectivity. (Tau mas, Thaum ntxov RedCap terminals yuav tsum tau dual-hom, Thaum kawg no, 5G cov kev pab yuav tsis zoo meej.)
Yuav luag tsis nco qab lawm los pav tus nqi. Raws li forecasts, Tus nqi ntawm RedCap modules yuav tau tshuaj ntawm 100-200 neeg hais lus muag (RMB), Nws yog tsawg dua qhov tam sim no 5G modules uas raug nqi ntau pua yuan, Tab sis ntau dua cov NB-IoT modules uas raug nqi kaum tawm yuan.
Raug ua lag ua luam scenarios ntawm RedCap
tam sim no, Raws li tus txheej txheem txhais ntawm 3GPP R17, RedCap txhawb peb loj lag luam scenarios: wearable li, industrial sensors thiab yees duab yoos.
Qhov yuav tsum tau rau lub network nyob rau hauv cov scenarios peb scenarios muaj qhia nyob rau hauv cov lus nram qab no:
▲ Daim duab thawj yog los ntawm Ericsson (txhais lus los ntawm cov chav kawm ntawv tshiab Jujube Chav kawm ntawv)
Wearable li, xws li ntse watches.
5G redcap
Thaum tam sim no, mainstream ntse watches rau lub lag luam tsuas txhawb 4G, 5G. Vim hais tias tus nqi ntawm 5G tej daim yog ib yam nkaus thiab, tshav kub kub loj, thiab qhov siab ceev ntawm eMBB yog ib redundant me ntsis redundant rau qhov screen loj ntawm tus saib.
Siv RedCap yuav siab ntsib tus yees duab hu rau ntse watches. Tsis zoo xwb yog tus downlink bandwidth txaus, Tab sis cov uplink bandwidth no kuj ntau dua LTE Cat.1.
Tsis tas li ntawd, RedCap kuj ntsib tau qhov kev xav tau ntawm ntse watches Saib raws cov ntsiab lus ntawd luaj li cas thiab hwj huam noj.
Thaum yuav RedCap yuav coj mus muag?
Nyob rau lub rau hli ntuj 2019, Ntawm lub 3GPP KHIAV #84 Rooj, RedCap yog hais rau sawv daws thawj zaug ua ib txoj kev tshawb no R17 txoj kev tshawb no (tshawb fawb txog tej yaam num).
Nyob rau hauv lub peb hlis ntuj 2021, 3GPP teb pom zoo rau NR RedCap UE standardization (Yam Khoom Ua Hauj Lwm) kev pom zoo. Raws li lub hom phiaj, Thaum 3GPP R17 yog khov, Cov txheej txheem ntawm RedCap yuav ua kom tiav.
Thaum tam sim no, Vim cov yas tshiab epidemic, 3GPP muaj successively muab ncua lub sij hawm R17 los ntawm 9 Cov Hli. Raws li qhov tseeb kev kawm tseeb, 3GPP R17 yuav khov nyob rau lub rau hli ntuj 2022. Ua txhais tau tias, Cov txheej txheem ntawm RedCap yuav ua tiav rau lub rau hli ntuj xyoo tom ntej no.
▲ 3GPP R17 timetable
Raws li kev kawm, txheej txheem, nws yuav siv sij hawm tsawg kawg 1-2 Xyoo twb paub lawm pib industrialization. Yog li ntawd, vim, Nws yuav tsum tau tias los ntawm nruab nrab ntawm nruab nrab ntawm 2023 (ntxov 2024), Peb yuav pom thaum ntxov coj mus muag khoom ntawm RedCap.
Thaum tam sim no, Nti tuam txhab uas muag nyob suav teb, Xws li Ziguang Zhanrui, Ua lub hom phiaj rau RedCap, Thiab nws ntseeg tau tias tej daim coj mus muag tej daim yuav tau launched sai li sai tau. Tej daim, yuav muaj modules thiab khoom.
