thidt bi cdm toy. Su xuit hien eua ddng dien thoai thong minh [smartphone] giau tinh nang da tao nen mot t h i gidi sO dung dCf lieu mdi. NhOng chiee dien thoai nay chay cac Ong dun[r]
(1)Nokia Siemens Networks:
Giai piiap mang tiiong minii danii ciio Smartpiione
ABDALLAHHARATITong giann d i e Nokia Siemens N e t w o r k s t a i Viet N a m
Ke \\i ndm 2007 Idi nay, locfng di? lieu di dpng toan cau da tdng cao mot cdch ddng ngqc nhien, ngdnh cdng nghiep bdng rong di Song chi mdi tdp trung vdo viec ddp uTig nhu edu cua ngi/tfi dung laptop chii" thi/c si/ quan tdm tdi viec toi uU mgng lu'di cho
thidt bi cdm toy
Su xuit hien eua ddng dien thoai thong minh [smartphone] giau tinh nang da tao nen mot t h i gidi sO dung dCf lieu mdi NhOng chiee dien thoai chay cac Ong dung ludn trang thai k i t n i i vao mang de ngddi dung cuoi CO the lien lae vdi ban be qua tin nhin tOc thdi, Facebook, va cac Ong dung thdng thodng khae Mdi dau, cac nha cung c i p dich vu vien thdng vui mdng thay rang smartphone chi tao trung binh mot lopng dO lieu bang 1/6 so vdi laptop NhOng r i i r i c r i i b k diu xuit hien
Ngodi dung di ddng tai My va chau Au, nhit la tai cac p h i ddng dan cu, b i t d i u phan nan v i c h i t Idpng cupc ggi va cac djch vu dO lieu ma hg su dung Qua phan tich Idu lopng mang lodi, ngOdi ta da tim thu pham gay nen tinh trang nay, dd chinh la smartphone NhOng tai lai la smartphone? Neu trung binh mot chiee smartphone tao lOpng dO lieu tren mang chi bang / B so vdi ehiie laptop thi lam chung ed the lam cho chat lopng cua toan bg mang lodi giam xudng? Them vao dd, ngadi dung dl dgng cdn phat hien mot sp that cay d i n g la dien thoai cua hg nhanh h i t pin hon mdc thdng thodng
Cau t r i Idi n i m d each thOc sO dung khac cua laptop va smartphone Laptop tao mot lOpng Idn dO lieu di dgng ngodi dung lodt web hoac t i i tep tin ve may tinh Trong dd, smartphone tao nhieu k i t noi nhd vdi mang lOdi, va mdi l i n ehi truyin di mot lopng nhd dO lieu Mot s i Ong dung push-mail ed the cai dat de nhan thO mdi cd giay mot l i n Phoang thOc tao r i t nhiiu k i t ndi vao mang lodi mac du logng dO lieu truyin di lai khdng dang la bao Qua dac cho thiy lOgng tin hieu gOi di tO smartphone [sO dung cac dng dung ludn trang thai k i t nii] cao g i p lan so vdi laptop Trong dd, cac nha khai thac mang chi mdi t i i Ou mang lodi de xd ly khii lopng lieu Idn laptop tao ra, chO chua de y tdi viee xO ly mot lOpng Idn tin hieu truyin di tO thiet bj c i m tay Chinh vi vay, chat lOpng mang di dgng eua nhiiu nha cung c i p dich vu vien thdng toan c i u da g i i m xuing rd ret
Ben canh dd, viec giOcho smartphone luon trang thai san sang truyin lieu di cung khiin cho pin cua chung nhanh h i t hon Oay la van de ma t i t ea cac nha khai thac mang di ddng dang gap phai hien nay, hg vOa phai giu cho khach hang hai Idng, vda phii d i m b i o thdi lopng sd dung pin cua dien thoai la lau n h i t cd the,
Giai phap cua Nokia Siemens Networks
Giai phap cua Nokia Siemens Networks [NSN] de khic phuc tinh trang tren n i m a each thOc xO ly eac trang thai khac cua t h i i t bi e i m tay (xem Hinh 1)
Beaury of Cell PCH
Atv.oys or - quick t e i p o n i c - lev signaling k a d
Cwnpcttdofi
Nolda Sienwns Nebvotks
@
Hinh 1: Cong nghe Ce!l_PCH cua NSN giup giam dang ke luong tin hieu ma smartphone
gifi di
Nhin vao Hinh 1, ban cd the thay rang cac nha cung cap thiet bj mang khac [khdng phai NSN] ludn gid cho t h i i t bj trang thai chd [Idle mode) chung khong dope sO dung nham tiet kiem pin Khi thiet bi mudn k i t ndi vao mang lodi, chung se phai gOi di tin nhan tin hieu mdi kieh boat dope che dp san sang [de truyen lieu di], r i i sau dd lai quay lai trang thai chd Viee gOi di tin nhan tin hieu se tdn kha nhieu thdi gian, vay ngOdi dung c u i i se phii chd trung binh khoang giay mdi cd k i t n i i dau tien Rd rang khdng ngOdi dung nao thich phai chd dpi nen cac nha cung c i p djch vu da budc phai dieu ehinb che hoat ddng [Active mode] cho chung keo dai lau ban de l i n truy cap t i i p theo dien nhanh hon Tuy
(2)Nokia Siemens Networks [NSN] da ed giai phap xd ly tin hieu theo each hieu qua hon Od la b i t d i u ehu trinh, t h i i t bj khdng trang thai sd dung se khdng dupe giO a ehe chd, ma thay vao dd la che co ten Cell_PCH Trong e h i nay, thiet bj tieu hao pin cung chi bing vdi e h i chd va tin hieu can goi di de danh thdc t h i i t bi cho trang thai san sang hoat
dgng lai it ban Chi e i n gOi di tdng edng 15 tin nhin tin hieu la t h i i t bi da di vao trang thai san sang hoat dgng Do s i lopng tin hieu it ban nen tre cung vi t h i dope rut ngin ban - chi khoang 0,5 giay Giai phap cua NSN se giup cho cae nha cung c i p dich vu vda giam t i i dope lopng tin hieu gOi di, vOa giup cho thiit bi it hao pin hon Ben canh do, viec quan ly tien trinh Radio Network Controller [RNC] cua NSN cung giup giam tinh trang qua tai mang lodi va cai thien trai nghiem ngOdi dung
Tin hieu it hon, thdi lOpng pin lau hon, va kha nang xO ly RNC t i t hon dong nghia vdi viee sO dung giai phap eua NSN cac nha cung cap dich vu vien thdng c6 the dOa c h i t lOgng djch vu tdt han cho ngodi dung smartphone, ddng thdi giup dam bao tdi Ou cho thiet bi ma ngOdi dung ludn ky vgng cd dope to nha cung cap djch vu cua hg
Giai phap Ihuc t^, hieu qua thuc te
Mpt nha cung cap dich vg vien thdng tai Trung Ddng da thO nghiem va tien hanh so sanh giai phap mang lodi
cCia NSN vdi cac nha cung c i p khae Ket qua cho thay smartphone boat dgng tren mang NSN cd thdi lopng sO dung pin trung binh la 11 tieng, g i n gap ddi so vdi thdi lOpng sd dung pin [6 tieng] cua t h i i t bj tren cac mang khac [xem hinh H2]
Thing / , Td ehOe Signals Research Group da cdng b i mot nghien cOu dge lap cd ten Smart-phones and a 3G Network [Oien thoai thdng minh va Mang 3G], dd dua sp khac biet v i k h i nang xd ly lopng tin hieu [do smartphone tao ra) va thdi lopng sO dung pin eua thiet bj giOa mang 3G cua NSN cd sd dung tinh nang CelLPCH va mang 3G cua cae nha cung cap khae khong ed tinh nang CelLPCH [xem Hinh 3)
Mot s i k i t luan nghien cOu cua Signals Research Group:
+ Tinh t r a n g mang 3G chu y i u la Idpng Idn tin hieu smartphone tao
+ Mot s i p h i n mem thong dung chay tren smartphone nhO tin nhan tOe thdi [IM], duyet web va b i n d i cung la nhan td gay tinh trang qua tai tin hieu
+ Viec goi di lien tue eac tin nhan tin hieu de giO cho t h i i t bi ludn trang san sang trao ddi dO lieu la nguyen nhan k h i i n cho pin cua smartphone nhanh bet ban
+ Nha khai thac mang sd dung
^ Nohta Siemens NctworVs rMr»dl.r>g o l * ' g " ^ ' ' " ' " , " * ' m c r e j i e * b j n e r y Mf* - l.ve t e s i s m t h * MKldte East
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Hinh 2: Ket qua so sanh ve thdi li/ang sd dung pin cua thiet bi tren mang NSN va ck
mang khac
Live tnuRphone n#hvo(K t»(ting in North A m » f K j :
lrdep«ndent Analysis confirms thai NSN network h i n d l e i iioiMling up to 50' riiire eKi^ieni!', ^^,^n competition
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-Compariion of idcnbcil nsks on IVTO n t t v o i l s uUng a NoUa N37 handMl
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Hinh 3: Giai phap cua NSN giup giam 50% li/ang tin hieu gifi di tif thiet bi cim tay hoat
dong tren mang thuong mai
cdng nghe Cell_PCH cd the giam thieu t i i da lopng tin hieu truyin tren mang, v i n tang dope thdi lOpng sU dung pin eua thiet bj
+ He t h i n g mang NSN cung c i p [cd sd dung cdng nghe Cell_PCH) gidp g i i m tdi % lOpng tin hieu truyen di t d smartphone, va tang 30% thdi lopng so dung pin cho t h i i t bi so vcri cae giai phap mang khdng su dung Cell PCH khac •
Biiot tien moi cua cong nghe vi mach Viet Nam
Trung tam Nghien edu va Oao tao Thiit k i Vi mach thupc Oai hgc Quoc gia TP.HCM [ICDREC] da t h i i t k i cdng chip vi xd ly 32-bit V N Oay la bOde t i i n mdi eua Viet Nam viee t h i i t k i cdng chip vi xO ly vdi cdng nghe IBM nanomet, nd ed diy du cac tinh nang eda mot bg chip vi xd Iy, dap Ong yeu c i u eua cac he t h i n g diiu khien phOe tap, ddi hdi t i c cao nho dien thoai di dgng, ma hda/giai ma dO lieu, thiet bi truyin thdng, xO ly i n h
Mac du so sanh giOa chip V N vdi chip VXL 32-bit eda Toshiba [Nhat] thi v i n cdn mot s i nbope diem nhO t h i i u phin t i i t kiem nang lOpng, vdng khda pha, don vi q u i n ly bd nhd, nhong sp ddi cua V N cho t h i y Viet Nam lai bode them mdt bode nOa tren eon dodng lam chd edng nghe