iPhone 5s/5c LTE Band Tweaks Combine AT&T and Verizon in One Model, Add China Mobile - MacRumors
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iPhone 5s/5c LTE Band Tweaks Combine AT&T and Verizon in One Model, Add China Mobile

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With the introduction of the iPhone 5s and iPhone 5c today, Apple has adjusted the various combinations of LTE band support for the upcoming hardware. Each of the new iPhones actually comes in four different models supporting different bands.

iphone_5s_5c
In the United States, a single model of each line supports both AT&T and Verizon, as well as T-Mobile, with support for Sprint coming in a separate model that is also compatible with KDDI and Softbank in Japan.

For UK customers, the expanded LTE band support also means that the new iPhone models will be compatible with Vodafone's new LTE network in addition to continuing support for EE's network. The new devices will also be compatible with Three's LTE network, which launches in December.

For the first time, China will be included in the first wave of launches for a new iPhone model, and the iPhone 5s and iPhone 5c are both offered in models that supported the TD-LTE standard used by China Mobile, the world's largest carrier. Apple and China Mobile have yet to announce a deal for the iPhone, though signs have pointed to a deal being in the works.

As noted by Unwired View, Apple's iPhone 5s may already have received regulatory certification for TD-LTE operation in China. According to reports, China's Ministry of Industry and Information Technology issued TD-LTE certification on four devices, but sources have indicated that a fifth approval, for the iPhone 5s, was kept secret by the agency.

(Thanks, @anexanhume!)

Related Forum: iPhone

Top Rated Comments

CrAkD Avatar
169 months ago
thats kind of cool. making it easier to swap carriers.
Score: 3 Votes (Like | Disagree)
kdarling Avatar
169 months ago
Can anyone confirm that the new VZW version of the iPhone will support simultaneous LTE data and CDMA calling? As has been made clear previously, the iPhone is the only Verizon smartphone that can't do this, due to Apple's design - they didn't want two radios at the same time. Perhaps this new band tweaking will fix that.
I just went and looked up the SAR reports at the FCC. Not only did they not list CDMA and LTE (SVLTE) as a test combination, they actually wrote a letter about it (E2642A is the CDMA version):



As I understand it, the only way to have a CDMA(Verizon) voice call and and an LTE data session at the same time is to power up two radios simultaneously, which some other phones, like the razr maxx, do. This impacts battery life and requires other engineering compromises, which Apple has so far been unwilling to make.
They probably don't have room for another antenna, especially on the aluminum backed iPhone 5. Right now, the only all metal phone using its own case back as antennas is the HTC One.

This problem does not exist with AT&T on an iPhone because TDMA/GSM can have a phone and data channel open at the same time on the same radio/session.
Unlike Verizon, AT&T cannot do voice and LTE at the same time.

Currently, GSM phones drop back to UMTS-3G when you want to use voice and data simultaneously.
Score: 2 Votes (Like | Disagree)
169 months ago
The real Question:


Can we talk and surf with Verizon or not?

I was not planning to upgrade, but if someone can confirm then I will upgrade to 5S from 5.
Score: 2 Votes (Like | Disagree)
169 months ago
No - as long as Verizon continues to use CDMA for calls this will be a limit.

Well, not necessarily. If Apple changed the antenna design, it is possible that it could use LTE for data and CDMA for voice - this was an antenna limitation of the iPhone 5, IIRC.

Other Verizon phones don't have a problem doing just that...
Score: 2 Votes (Like | Disagree)
Diode Avatar
169 months ago
So will VZ be able to run data/voice simultaneous? Being the same model number as AT&T

No - as long as Verizon continues to use CDMA for calls this will be a limit.
Score: 2 Votes (Like | Disagree)
163 months ago
Hope this helps... The MOST current information on the iphone 5s

The VERIZON IPHONE 5S... Has all the necessary bands to work on 3G and 4G LTE ALL Carriers listed EXCEPT SPRINT

The AT&T and TMOBILE IPHONE 5s will work fully on ALL Carriers except Verizon (only 4G LTE Will work, no Voice) and Not at all with SPRINT

the SPRINT IPHONE 5S is compatible with itself and all Canadian Carriers but with MANY Restrictions...

Sprints new network is Partially compatible with other carriers but REFUSES To open its network
Score: 1 Votes (Like | Disagree)

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