Padatahun ini akhirnya smartfren akan meluncurkan kartu 4G LTE GSM nya, dengan adanya suatu komitmen ini yang dimiliki oleh perusahaan telekomunikasi CDMA itu untuk bersaing dengan operator berlisensi GSM dalam perang layanan Internet generasi keempat.. Smartfren mengatakan akan memanfaatkan spektrum frekuensi 850 MHz untuk menggelar 4G LTE, dan
Two basic technologies in mobile phones, CDMA and GSM, represent a gap you can't cross. They're the reason you can't use old AT&T phones on Verizon's network and vice versa. But what does CDMA vs. GSM really mean for you?CDMA Code Division Multiple Access and GSM Global System for Mobiles are shorthand for two older radio systems also known as 2G and 3G used in cell phones. We first published this article in 2012 and kept it updated it throughout the 2010s, when it was important to know the differences between these two technologies. But in 2022, it's absolutely time to get off of CDMA and GSM. Those networks are going away! If you have a phone that only uses 2G or 3G, you need to get a 4G or 5G phone, has already shut down its 2G GSM network and most recently said it will shut down 3G GSM/UMTS in February 2022Opens in a new window.T-Mobile will shut down 3G GSM/UMTS in July 2022Opens in a new window. It has not set a date to turn off 2G, but has greatly reduced its coverage and quality. T-Mobile will shut down the 3G CDMA network used by some Sprint and Boost customers on March 31, 2022Opens in a new window. Verizon will shut down its 3G CDMA network on December 31, 2022Opens in a new window.In the twilight years of these networks, they're being turned down to levels primarily designed to support devices like electric meters and vending machines. That means 2G and 3G reception and call quality will likely be poor, even before the formal shutdowns. It's a 4G LTE world now, with 5G coming up fast. No matter how much you love your old phone, it's time to switch there are some 2G-only and 2G/3G-only phones still for sale, especially unlocked GSM phones. Don't buy them. They'll work poorly, and pretty soon they won't work at weep for CDMA and GSM. They've had long lives. Sprint's CDMA network is 25 years oldOpens in a new window. The first GSM network launched in the US in 1995Opens in a new window. There are more efficient ways to use our limited airwaves 2G, 3G, 4G, 5GWhen cell phone providers talk about a "G," they mean a generation of wireless technology. Each generation is able to support more users and has better data transfer first generation was analog cellular phones. When carriers switched to 2G digital systems in the 1990s, they chose among several competing options; some of them died out, but CDMA and GSM are the two 2G camps that survived. They remained split during the '00s through the third generation of cellular, which added better data speeds but stayed CDMA/GSM split ended, in theory, as carriers all switched to LTE, a single, global 4G standard, starting in 2010. But the difference remained because phones still needed to access the older 2G and 3G networks, primarily for voice calls. AT&T, T-Mobile, and Verizon all started to phase in voice calling over 4G in 2014, but it took a while. All four carriers now support voice over carriers are installing 5G, which after a few false starts will be a single global standard called 5G-NR. 5G is still in the early stages. You can't make voice calls over it quite yet, and it doesn't have true nationwide coverage. But 4G LTE is very mature now, and if you're still on 2G or 3G, you should have no concerns about upgrading to a 4G-compatible phone. The Samsung Galaxy S20 and its siblings were the first all-carrier 5G phones for the US One Standard Doesn't Mean CompatibilityLTE, or Long Term Evolution, is the globally accepted 4G wireless standard. All of the US carriers use it. For more, see 3G vs. 4G What's the Difference? And all of the carriers use the same 5G standard. For more on that, see our explainer on 5G. So you'd think, hey, that should make everyone compatible, right? Wrong. To be compatible, you need three thingsTo be using the same technology, like speaking the same languageTo support the same frequency bands—being able to tune to the right channelTo be allowed on the networkIn the 4G and 5G world, everyone will be using the same radio technology, but they may not have the same channels, and carriers may not permit other carriers' devices to be used on their biggest problem is frequency band compatibility. Carriers operate on different radio channels, and one carrier's model of a phone may not include channels used by other carriers. This is frequently a problem across international borders, as with the six different international models of the Samsung Galaxy Verizon and AT&T, 4G devices that haven't been certified by the carrier have trouble making voice calls or sending text messages over that network. They'll connect and get data, but they can't make has a list of which phones will workOpens in a new window when it turns off but not all, popular phones now support all three major carriers' LTE networks. The Motorola Moto G4, E4, and later; the Samsung Galaxy S7 and later; the OnePlus 8 and later; and Google Pixel phones all work across all carriers. For iPhones, all iPhone 6 and later phones work on all carriers' LTE systems. Yes, this is more complicated than the old 2G world. One advantage of GSM was that if a phone and carrier both adhered to the standard, and the phone supported the right channels, the network had to accept the phone. That isn't the case any longer. Verizon has replaced most of its 3G network with 4G, but some pockets still remain see West Virginia here Which Carriers Are CDMA? Which Are GSM?In the US, Verizon, US Cellular, and the old Sprint network now owned by T-Mobile used CDMA. AT&T and T-Mobile used of the rest of the world used GSM. The global spread of GSM came about because in 1987, Europe mandated the technology by law, and because GSM comes from an industry consortium. What we call CDMA, by and large, is owned by chipmaker Qualcomm. This made it less expensive for third parties to build GSM why did so many US carriers go with CDMA? Timing. When Verizon's predecessors and Sprint switched from analog to digital in 1995 and 1996, CDMA was the newest, hottest, fastest technology. It offered more capacity, better call quality, and more potential than the GSM of the day. GSM caught up, but by then those carriers' paths were possible to switch from CDMA to GSM. Bell and Telus in Canada did it to get access to the wider variety of off-the-shelf GSM phones. But Verizon and T-Mobile are focused on 4G and 5G, not 3G. They are retiring the older networks rather than switching. What Is 5G? The Technology Behind CDMA and GSMCDMA and GSM are both multiple-access technologies. They're ways for people to cram multiple phone calls or internet connections into one radio came first. It's a "time division" system. Calls take turns. Your voice is transformed into digital data, which is given a channel and a time slot, so three calls on one channel look like this 123123123123. On the other end, the receiver listens only to the assigned time slot and pieces the call back together. Recommended by Our Editors The pulsing of the time division signal created the notorious "GSM buzz," a buzzing sound whenever you put a GSM phone near a speaker. That's mostly gone now, because 3G GSM as I'll explain isn't a time division requires a bit more processing power. It's a "code division" system. Every call's data is encoded with a unique key, then the calls are all transmitted at once; if you have calls 1, 2, and 3 in a channel, the channel would just say 66666666. The receivers each have the unique key to "divide" the combined signal into its individual division turned out to be a more powerful and flexible technology, so "3G GSM" is actually a CDMA technology, called WCDMA wideband CDMA or UMTS Universal Mobile Telephone System. WCDMA requires wider channels than older CDMA systems, as the name implies, but it has more data capacity.GSM is actually only the formal name for the 2G system. But the name is also widely used to refer to any technology on the "GSM path" and approved by the same industry body, so I'm referring to WCDMA as 3G GSM so people don't confuse it with the separate 2G CDMA.Since its inception, GSM evolved faster than CDMA. WCDMA is considered the 3G version of GSM technology. The 3GPP the GSM governing body released extensions called HSPA, which sped GSM networks up to as fast as 42Mbps, at least in CDMA networks, meanwhile, got stuck at Faster CDMA technologies exist, but US carriers chose not to install them and instead turned to 4G LTE to be more compatible with global standards. The Alcatel Go Flip 3 makes calls over 4G LTE Why Carriers Are Shutting Down 2G and 3GEveryone's scrolling, Snapping, texting, FaceTiming, and more. Demands for mobile data use continue to rise. 2G and 3G, CDMA and GSM, are inefficient uses of the airwaves. 4G and 5G compress more information into each hertz of airwaves, and can combine channels much more flexibly for more efficient operation. So the carriers are retiring the older, less efficient technologies in exchange for newer networks which make better use of a scarce carriers believe that most people have already switched to 4G through the natural process of upgrading phones. Phones making 4G voice calls have been in the market for years now. Apple's first iPhone with 4G voice was the iPhone 6, from 2014. While it's annoying to have to switch out an older phone because of this network transition, it's far from no technological difference between "CDMA" and "GSM" carriers any more in the age of 4G LTE and 5G. Some cultural differences remain, Verizon makes it really hard to move your SIM card between devices without their permission, while it's easier to do so on AT&T and T-Mobile. That's an option in 4G. Verizon does it because historically, with CDMA, it could control which phones were on its network, and it wants to keep as much of that control as possible. AT&T and T-Mobile don't in part because in the GSM era, the GSM spec meant they had to accept anyone with a compatible to Upgrade?To find the right phone and carrier for you, our Readers' Choice and Fastest Mobile Networks awards are great places to start, along with our list of the best phones we've tested. Like What You're Reading? Sign up for Fully Mobilized newsletter to get our top mobile tech stories delivered right to your inbox. This newsletter may contain advertising, deals, or affiliate links. Subscribing to a newsletter indicates your consent to our Terms of Use and Privacy Policy. You may unsubscribe from the newsletters at any time.
BlackBerryCorner. Home > LOEKELOE > HANDPHONE & PDA > BlackBerry Corner > ★★★Thread Diskusi khusus untuk Bold 9650 aka ESSEX★★★ - Part 2 balik ke std lagi deh. Klo gw lancar gan ini adr dah 1.6 Osbbv7 nya di shrink dulu,jgn install utuh Essex gw fmnya 311mb App: fb,ym,bible,meterberry,tema tambahan 1,doctogo
Banyak keraguan dalam diri kita sebagai pengguna layanan BlackBerry di Indonesia, terutama terhadap kualitas layanan itu sendiri. Banyak juga dari kita yang masih saja memilih handheld BlackBerry non resmi dengan alasan harga nya yang cukup terpaut jauh, termasuk saya juga hehehehe... Nah rata-rata handheld non resmi tersebut banyak didatangkan dari operator luar negeri baik handheld yang memang hanya diperuntukkan bagi GSM saja, dan ada juga yang diperuntukkan CDMA saja. Akan tetapi, ada juga tipe WORLD EDITION atau bisa menggunakan SIM CARD jenis GSM sekaligus bisa di inject atau dimasukkan nomor CDMA pada handheld tersebut. Jika handheld BlackBerry CDMA, sudah pasti anda akan perlu dan harus melakukan inject nomor CDMA pada handheld tersebut supaya bisa digunakan layanannya. Lalu, bagaimana jika anda sudah terlanjur memakai atau membeli handheld BlackBerry WORDL EDITION ? Perlukah melakukan inject nomor CDMA, meskipun layanan BlackBerry sudah terpenuhi dengan kartu GSM anda? Ada beberapa hal sebelum anda memutuskan untuk melakukan inject nomor CDMA pada handheld BlackBerry WORLD EDITION tersebut. Pertama cek terlebih dahulu apakah sudah benar-benar UNLOCK atau belum untuk semua jaringan nya. Jika memang sudah, hal selanjutnya adalah kualitas sinyal dan kebutuhan beberapa fitur seperti CALL FORWARDING atau LOCATION, yang mana mau tidak mau harus dengan cara melakukan inject nomor CDMA pada handheld anda. Sinyal terkadang naik turun atau susah mendapatkan 3G pada kartu GSM anda. Hal lain pada sinyal adalah indikasi tidak bisa nya melakukan panggilan masuk atau keluar pada sinyal 2G - GPRS-EDGE meskipun layanan BlackBerry sudah ON. Memang tidak semua lokasi sinyal 2G - GPRS-EDGE mengalami permasalahan tersebut, bisa juga dikarenakan jenis cakupan jaringan yang mungkin tidak sesuai dengan spesifikasi jaringan pada handheld BlackBerry WORLD EDITION anda. Saya pun pernah mengalami nya pada handhled STORM 2 ODYN 9550. Aneh benar ketika di suatu lokasi saya tidak bisa melakukan panggilan dan nomor saya tidak bisa dihubungi oleh rekan kerja, meskipun semua indikasi sinyal dan kualitas sinyal tidak ada masalah. Solusi nya memang harus melakukan inject nomor CDMA untuk lebih mengoptimalkan kinerja dari handheld BlackBerry WORLD EDITION tersebut. Alasannya? karena pada saat proses inject, pastinya handheld kita akan mengalami PRL UPDATE. Mengapa perlu PRL UPDATE? karena pada saat akan di inject nomor CDMA, pastinya handheld harus di synchronize terlebih dahulu dengan rules dari jaringan nomor CDMA yang akan kita inject. Dalam hal ini beberapa operator CDMA sudah memiliki tools yang memadai untuk melakukan PRL UPDATE pada handheld BlackBerry WORLD EDITION ini. Ketika sudah melakukan inject nomor CDMA ke handheld dan nomor CDMA tersebut aktif layanan BlackBerry nya, maka tidak perlu takut akun webclient yang sudah ada akan terbuang. justru ketika pindah dari GSM ke CDMA, hanya jaringan nya saja yang berubah, PIN BBM, Email dan akun webclient akan masih sama seperti pada saat anda menggunakan jaringan GSM.
Tiếnhành tháo các ốc trên bo mạch chính. Gỡ bo mạch chính. Bo mạch chính sau khi được tháo rời (iPhone 4 CDMA ở trên) Con chip sóng Qualcomm MDM6600 hỗ trợ cả CDMA và GSM/WCDMA. Tiến hành tháo màn hình. Toàn bộ
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Sentfrom my Verizon Wireless BlackBerry via GSM/CDMA network Btw saya inject sendiri, bukan berarti saya tdk mau ke galery tp saya kebiasaan untuk belajar melakukan sendiri sampai klau memang bener2 tidak bisa baru dibawa ke galeri smart Mohon bantuan RR klau perna ngalami ini, sementara ini bb Tour masih pakai 3 pingin coba CDMA nya
gans, setelah ngoprek2 barang...aku kan nemu hape bb ku yg type bb style 9670 ,setelah di charge ternyata masih nyala seneng ,, tapi aku inget klo hp ini inject cdma , dan skr kan sdh gak ada operator cdma lagi ,aku rencana mao ubah jadi hp bb gsm , kira2 bsa gak yah ? kalao ada yang tau cara unlock inject cdma ke gsm tolong reply dan kasih tau aku..karena setelah search google, cara nya beda2 semua...thanks 10-04-2020 0101 tien212700 dan nona212 memberi reputasi KASKUS Addict Posts 1,250 Harusnya ga possible karena CDMA dan GSM beda jalur dan protokol, kecuali untuk kasus 4G,kalau di bawahnya mereka ga sih. Beda protocol jadi not possible 😂 14-06-2020 1500
Sedangmencari firmware modem Bolt yang dapat digunakan untuk menangkap sinyal 4G all operator? GSM ataupun CDMA? Yup! Pastinya para Bolters di Indonesia sedang harap – harap cemas menunggu dobrakan ini, termasuk salah satu tim RindiTech yang juga telah menggunakan modem bolt sebagai penunjang aktivitasnya, terutama dalam melakukan update artikel ke
CDMA vs GSM Qual é a diferença?Duas tecnologias básicas em telefones celulares, CDMA e GSM representam uma lacuna que você não pode atravessar. Eles são a razão pela qual você não pode usar muitos telefones da AT & T na rede da Verizon e vice-versa. Mas o que significa CDMA vs GSM para você?CDMA Código de Divisão de Acesso Múltiplo e GSM Global System for Mobiles são abreviaturas para os dois principais sistemas de rádio utilizados em telefones celulares. Ambas as siglas tendem a agruparem um conjunto de tecnologias geridas pelas mesmas entidades. Nesta história, vou tentar explicar quem usa qual tecnologia e quais são as diferenças portadores são CDMA? Quais são GSM? Nos Estados Unidos, Sprint, Verizon e US Cellular utilizam CDMA. AT & T e T-Mobile usam maior parte do resto do mundo usa GSM. A expansão global do GSM ocorreu porque em 1987, a Europa obrigou a tecnologia por lei, e porque GSM vem de um consórcio de indústria. O que chamamos de CDMA, em geral, é de propriedade da fabricante de chips Qualcomm. Isso tornou menos caro para terceiros construir equipamentos várias variantes e opções que portadores podem escolher, como coberturas em seu sorvete tecnológico. Nesta história vamos nos concentrar em redes dos que CDMA vs GSM significa para você? Para qualidade de chamada, a tecnologia que você usa é muito menos importante do que a forma como sua operadora construiu sua rede. Há bons e maus CDMA e redes GSM, mas existem diferenças fundamentais entre as tecnologias. Aqui está o que você, como consumidor, precisa muito mais fácil trocar telefones em redes GSM, porque as operadoras GSM colocam informações sobre o cliente em um cartão SIM removível. Tire o cartão, coloque-o em um telefone diferente e o novo telefone agora tem o seu número. Além do mais, para ser considerado GSM, uma operadora deve aceitar qualquer telefone compatível com GSM. Assim, as operadoras GSM não têm controle total do telefone que você está não é o caso com CDMA. Nos EUA, as operadoras CDMA usam listas brancas baseadas em rede para verificar seus assinantes. Isso significa que você só pode trocar os telefones com a permissão da sua operadora, e uma operadora não precisa aceitar nenhum telefone em particular em sua rede. Poderia, mas tipicamente, as transportadoras americanas optaram por não Sprint e telefones Verizon agora têm cartões SIM, mas isso não é por causa de CDMA. Os cartões SIM geralmente estão lá para as redes 4G LTE da Sprint e da Verizon, porque o padrão LTE também usa cartões SIM. Os telefones também podem ter slots SIM para suportar redes GSM estrangeiras como "telefones mundiais". Mas essas operadoras ainda usam CDMA para autenticar seus telefones em suas próprias redes redes 3G CDMA conhecidas como "EV-DO" ou "Evolution Data Optimized" também, em geral, não podem fazer chamadas de voz e transmitir dados ao mesmo tempo. Mais uma vez, essa é uma opção disponível conhecida como "SV-DO" para "Voz Simultânea e Otimização de Dados", mas uma que as transportadoras dos EUA não adotaram para suas redes e outro lado, todas as redes 3G GSM têm voz e dados simultâneos, porque é uma parte obrigatória da especificação. GSM 3G também é realmente um tipo de CDMA. Vou explicar isso mais tarde.Então, por que tantas transportadoras dos EUA foram com CDMA? Cronometragem. Quando os predecessores da Verizon e a Sprint passaram do analógico para o digital em 1995 e 1996, o CDMA foi a tecnologia mais recente, mais quente e mais rápida. Ofereceu mais capacidade, melhor qualidade de chamada e mais potencial do que a GSM do possível mudar de CDMA para GSM. Bell e Telus no Canadá fizeram isso, para ter acesso à maior variedade de telefones GSM. Mas a Verizon e a Sprint são grandes o suficiente para poderem fabricar telefones personalizados para eles, de modo que não vejam a necessidade de desperdiçar dinheiro trocando tecnologias 3G quando poderiam construir suas redes tecnologia por trás CDMA vs GSM CDMA e GSM são ambas tecnologias de acesso múltiplo. São maneiras para que as pessoas façam chamadas de telefone múltiplas ou conexões de Internet em um canal de veio em primeiro lugar. É um sistema de "divisão de tempo". As chamadas se revezam. Sua voz é transformada em dados digitais, que é dado um canal e um intervalo de tempo, então três chamadas em um canal se parecem com isso 123123123123. Na outra extremidade, o receptor escuta apenas o intervalo de tempo atribuído e partes da chamada de volta juntos .O pulsar do sinal de divisão de tempo criou o notório "zumbido GSM", um zumbido sempre que você colocou um telefone GSM perto de um alto-falante. Isso é ido na maior parte agora, porque 3G GSM como eu explico mais tarde não é uma tecnologia de divisão de exigiu um pouco mais poder de processamento. É um sistema de "divisão de código". Todos os dados da chamada são codificados com uma chave exclusiva, então todas as chamadas são transmitidas de uma só vez; Se você tiver chamadas 1, 2 e 3 em um canal, o canal seria apenas 66666666. Os receptores cada um tem a chave exclusiva para "dividir" o sinal combinado em suas chamadas divisão de código revelou-se uma tecnologia mais poderosa e flexível, de modo que "3G GSM" é na verdade uma tecnologia CDMA, chamada WCDMA CDMA de banda larga ou UMTS Universal Mobile Telephone System. WCDMA requer canais mais amplos do que os sistemas CDMA mais antigos, como o nome indica, mas tem mais capacidade de a sua criação, GSM evoluiu mais rápido do que CDMA. Como mencionei acima, WCDMA é considerado a versão 3G da tecnologia GSM. Para acelerar ainda mais as coisas, o 3GPP órgão governante GSM lançou extensões chamadas HSPA, que aceleraram as redes GSM até 42Mbps, pelo menos em redes CDMA, entretanto, estão presas em 3,6 Mbps. Embora existam tecnologias CDMA mais rápidas, as operadoras norte-americanas optaram por não instalá-las e, em vez disso, optaram por 4G LTE para serem mais compatíveis com os padrões Futuro é LTE O intervalo CDMA vs. GSM vai acabar , uma vez que, todo mundo se porte para 4G LTE, mas isso não significa que todos os telefones serão compatíveis. LTE, ou "Long Term Evolution", é o novo padrão mundialmente aceito sem fio 4G. Todas as transportadoras dos EUA estão problema é que eles estão ativando-o em diferentes bandas de freqüência, com diferentes sistemas de backup 3G, e até mesmo, no caso da nova rede Sprint Spark, usando uma variante LTE TD-LTE que não funciona com quaisquer outros telefones da operadora dos EUA. Há muito poucos telefones que suportam todas as bandas LTE das Verizon anunciou que pretende começar a vender telefones LTE apenas em 2015, mas, por enquanto, eles precisarão de um software especial da Verizon para fazer chamadas de voz, de modo que o movimento não facilitará a troca de operadoras com seu telefone. Mesmo sem CDMA, a filosofia CDMA de controle de portadora de seu telefone permanecerá número crescente de telefones suporta todos esses padrões, mas pode ser difícil dizer quais. O iPhone 6, o iPhone 6 Plus e o Google Nexus 6 são os mais flexíveis. As unidades iPhone 6 e 6 Plus da AT & T, T-Mobile e Verizon podem ser usadas em todas as três operadoras, mas não possuem as bandas especiais da Sprint. Os iPhones Sprint têm todas as bandas, mas a Sprint tem políticas de desbloqueio estritas. Os telefones Nexus 6 funcionam tecnicamente em todas as quatro operadoras, mas a Sprint só permite que os telefones comprados da Google ou da Sprint em sua telefones da HTC One M8 e Samsung Galaxy S5 da Verizon funcionarão um pouco nas redes da AT & T e da T-Mobile, embora com cobertura limitada porque, embora tenham CDMA, GSM e LTE, não têm todas as bandas de frequência AT & Uso móvel. Variantes desses mesmos modelos vendidos pela AT & T e T-Mobile não funcionará na Verizon em tudo, porque eles não têm o rádio CDMA necessário para a Verizon. É uma o que tudo isso significa para você? Se você quiser trocar de telefone muitas vezes, use o telefone na Europa, ou use telefones importados, basta ir com GSM. Caso contrário, escolha sua operadora com base na cobertura e qualidade da chamada em sua área e presuma que provavelmente você precisará de um novo telefone se mudar de operadora.
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