5G thiab Network Slicing
Thaum 5G tau hais dav dav, Network Slicing yog cov cuab yeej sib tham tshaj plaws ntawm lawv. Cov tswv lag luam xws li KT, SK Telecom, China Mobile, DT, KDDI, NTT, thiab cov neeg muag khoom xws li Ericsson, Nokia, thiab Huawei txhua tus ntseeg tias Network Slicing yog qhov zoo tshaj plaws network architecture rau 5G era.
Cov thev naus laus zis tshiab no tso cai rau cov neeg ua haujlwm sib faib ntau lub vev xaib virtual kawg-rau-kawg hauv cov khoom siv kho vajtse, thiab txhua qhov Network Slice tau raug cais tawm ntawm lub cuab yeej, nkag mus rau network, thauj network thiab cov tub ntxhais network kom tau raws li cov yam ntxwv sib txawv ntawm ntau hom kev pabcuam.
Rau txhua qhov Network Slice, cov peev txheej tshwj xeeb xws li virtual servers, network bandwidth, thiab kev pabcuam zoo tau lav tag nrho. Txij li cov hlais raug cais los ntawm ib leeg, kev ua yuam kev lossis kev ua tsis tiav hauv ib daim yuav tsis cuam tshuam rau kev sib txuas lus ntawm lwm cov hlais.
Vim li cas 5G xav tau Network Slicing?
Los ntawm yav dhau los mus rau 4G network tam sim no, cov xov tooj ntawm tes feem ntau ua haujlwm rau cov xov tooj ntawm tes, thiab feem ntau tsuas yog ua qee qhov kev ua kom zoo rau cov xov tooj ntawm tes. Txawm li cas los xij, nyob rau hauv lub sijhawm 5G, cov xov tooj ntawm tes yuav tsum tau ua haujlwm ntawm ntau hom thiab cov kev xav tau. Ntau yam ntawm daim ntawv thov scenarios hais muaj xws li mobile broadband, loj-scale iot, thiab lub hom phiaj tseem ceeb iot. Lawv txhua tus xav tau ntau hom kev sib txuas thiab muaj cov kev xav tau sib txawv hauv kev txav mus los, kev suav nyiaj, kev ruaj ntseg, kev tswj hwm txoj cai, latency, kev ntseeg siab thiab lwm yam.
Piv txwv li, kev pabcuam iot loj txuas nrog cov ntsuas ntsuas ntsuas ntsuas kub, av noo, dej nag, thiab lwm yam. Tsis tas yuav muaj kev xa xov, qhov chaw hloov tshiab, thiab lwm yam ntawm cov xov tooj tseem ceeb hauv lub xov tooj ntawm tes. Tsis tas li ntawd, lub hom phiaj tseem ceeb ntawm iot cov kev pabcuam xws li kev tsav tsheb tsis muaj zog thiab kev tswj cov chaw taws teeb ntawm cov neeg hlau xav tau qhov kawg-rau-kawg latency ntawm ob peb milliseconds, uas txawv heev ntawm cov kev pabcuam mobile broadband.
Daim ntawv thov tseem ceeb ntawm 5G
Qhov no puas txhais tau tias peb xav tau lub network tshwj xeeb rau txhua qhov kev pabcuam? Piv txwv li, ib tug pab 5G xov tooj ntawm tes, ib tug pab 5G loj iot, thiab ib tug pab 5G lub hom phiaj tseem ceeb iot. Peb tsis tas yuav, vim tias peb tuaj yeem siv kev sib txuas sib txuas los faib tawm ntau qhov kev sib txuas lus los ntawm kev sib cais lub cev, uas yog ib qho txiaj ntsig zoo heev!
Daim ntawv thov yuav tsum tau rau Network Slicing
Daim ntawv 5G network tau piav qhia hauv 5G daim ntawv dawb tso tawm los ntawm NGMN yog qhia hauv qab no:
Yuav ua li cas peb siv qhov kawg-rau-kawg Network Slicing?
(1) 5G wireless nkag network thiab core network: NFV
Nyob rau hauv niaj hnub mobile network, lub ntsiab ntaus ntawv yog lub xov tooj ntawm tes. RAN (DU thiab RU) thiab cov haujlwm tseem ceeb yog tsim los ntawm cov khoom siv sib koom tes uas muab los ntawm RAN cov neeg muag khoom. Txhawm rau siv lub network slicing, Network Function Virtualization (NFV) yog qhov yuav tsum tau ua ua ntej. Yeej, lub tswv yim tseem ceeb ntawm NFV yog siv lub network ua haujlwm software (xws li MME, S / P-GW thiab PCRF hauv pob ntawv tseem ceeb thiab DU hauv RAN) tag nrho hauv cov tshuab virtual ntawm kev lag luam servers es tsis txhob sib cais hauv lawv lub siab. cov khoom siv network. Nyob rau hauv txoj kev no, RAN raug kho raws li ntug huab, thaum lub luag haujlwm tseem ceeb raug kho raws li cov huab cua tseem ceeb. Kev sib txuas ntawm VMS nyob ntawm ntug thiab hauv huab cua tseem ceeb tau teeb tsa siv SDN. Tom qab ntawd, ib daim yog tsim rau txhua qhov kev pabcuam (xws li xov tooj hlais, loj iot hlais, lub hom phiaj tseem ceeb iot hlais, thiab lwm yam).
Yuav ua li cas siv ib qho ntawm Network Slicing (I)?
Daim duab hauv qab no qhia tau hais tias yuav ua li cas txhua daim ntawv thov kev pabcuam tshwj xeeb tuaj yeem ua tau virtualized thiab nruab rau hauv txhua daim. Piv txwv li, slicing yuav configured raws li nram no:
(1) UHD slicing: virtualizing DU, 5G core (UP) thiab cache servers hauv ntug huab, thiab virtualizing 5G core (CP) thiab MVO servers hauv huab huab.
(2) Xov tooj slicing: virtualizing 5G cores (UP thiab CP) thiab IMS servers nrog tag nrho cov peev xwm txav tau yooj yim hauv huab huab
(3) Loj-scale iot slicing (piv txwv li, sensor tes hauj lwm): Virtualizing ib tug yooj yim thiab lub teeb 5G core nyob rau hauv cov tub ntxhais huab tsis muaj peev xwm tswj kev mus los.
(4) Lub luag haujlwm tseem ceeb iot slicing: Virtualizing 5G cores (UP) thiab cov servers cuam tshuam (xws li, V2X servers) hauv ntug huab kom txo qis kev sib kis latency
Txog tam sim no, peb xav tau los tsim cov nplooj siab rau cov kev pabcuam nrog cov kev xav tau sib txawv. Thiab cov haujlwm virtual network tau muab tso rau hauv qhov chaw sib txawv hauv txhua daim (piv txwv li, ntug huab lossis huab huab) raws li cov yam ntxwv sib txawv. Tsis tas li ntawd, qee qhov kev ua haujlwm hauv network, xws li kev them nqi, kev tswj hwm txoj cai, thiab lwm yam, tej zaum yuav tsim nyog nyob rau hauv qee qhov kev txiav, tab sis tsis nyob hauv lwm tus. Cov neeg ua haujlwm tuaj yeem kho lub network slicing raws li lawv xav tau, thiab tej zaum yog txoj hauv kev zoo tshaj plaws.
Yuav ua li cas siv ib qho ntawm Network Slicing (I)?
(2) Network slicing ntawm ntug thiab core huab: IP/MPLS-SDN
Software txhais kev sib txuas lus, txawm hais tias lub tswv yim yooj yim thaum nws tau pib ua ntej, tab tom ua nyuaj. Siv daim ntawv Overlay ua piv txwv, SDN thev naus laus zis tuaj yeem muab kev sib txuas hauv network ntawm cov tshuab virtual ntawm cov txheej txheem network uas twb muaj lawm.
Xaus-rau-kawg Network Slicing
Ua ntej, peb saib yuav ua li cas kom ntseeg tau tias kev sib txuas network ntawm ntug huab thiab cov tub ntxhais huab virtual tshuab muaj kev nyab xeeb. Lub network ntawm cov tshuab virtual yuav tsum tau ua raws li IP / MPLS-SDN thiab Transport SDN. Hauv daim ntawv no, peb tsom mus rau IP / MPLS-SDN muab los ntawm cov neeg muag khoom router. Ericsson thiab Juniper ob leeg muab IP / MPLS SDN network architecture khoom. Cov haujlwm sib txawv me ntsis, tab sis kev sib txuas ntawm SDN-based VMS yog qhov zoo sib xws.
Hauv cov huab huab tseem ceeb yog virtualized servers. Nyob rau hauv lub hypervisor ntawm lub server, khiav lub built-in vRouter/vSwitch. Lub SDN maub los muab qhov kev teeb tsa ntawm lub tshuab virtualized thiab DC G / W router (PE router uas tsim MPLS L3 VPN hauv huab cov ntaub ntawv chaw). Tsim SDN qhov (piv txwv li MPLS GRE lossis VXLAN) ntawm txhua lub tshuab virtual (xws li 5G IoT core) thiab DC G / W routers hauv huab huab.
Tus tswj hwm SDN tom qab ntawd tswj hwm cov phiaj xwm ntawm cov tunnels thiab MPLS L3 VPN, xws li IoT VPN. Cov txheej txheem yog tib yam nyob rau hauv ntug huab, tsim ib qho iot hlais txuas los ntawm ntug huab mus rau IP / MPLS qaum qaum thiab tag nrho txoj kev mus rau cov tub ntxhais huab. Cov txheej txheem no tuaj yeem siv tau raws li cov thev naus laus zis thiab cov qauv uas paub tab thiab muaj nyob rau tam sim no.
(3) Network slicing ntawm ntug thiab core huab: IP/MPLS-SDN
Dab tsi tseem tshuav tam sim no yog mobile fronthawall network. Yuav ua li cas peb txiav no mobile fronthold network ntawm ntug huab thiab 5G RU? Ua ntej tshaj plaws, 5G pem hauv ntej-haul network yuav tsum tau txhais ua ntej. Muaj qee qhov kev xaiv nyob rau hauv kev sib tham (xws li, qhia txog lub pob ntawv tshiab-raws li kev sib tham tom ntej los ntawm kev rov txhais cov kev ua haujlwm ntawm DU thiab RU), tab sis tseem tsis tau muaj cov txheej txheem txhais tau. Cov duab hauv qab no yog daim duab qhia hauv ITU IMT 2020 ua haujlwm pab pawg thiab muab piv txwv ntawm virtualized fronhaul network.
Piv txwv ntawm 5G C-RAN Network Slicing los ntawm ITU Lub Koom Haum
Post lub sij hawm: Feb-02-2024
