ISurfTooMuch
join:2007-04-23
Tuscaloosa, AL
| reply to patcat88
Re: SIM Cards?
said by patcat88  :No, never in a million years. All Verizon "Open" devices still must be tested to Verizon specs and comply with them, and only after passing the test the ESN/IMEI range allocated to device by the manufacturer will be added to Verizon's "permitted" list that the cell network switches use. Sounds about right. Totally unnecessary BS, of course, unless there will be incompatible flavors of LTE. I mean, the beauty of GSM is that, as long as a device supports the bands in use in a particular country, you just insert a carrier's SIM card, and it works. No need for so-called compatibility tests. If a device is GSM, it will work. I presume the same will be true of LTE.
Anyone wanna bet that VZW will charge manufacturers for this so-called compatibility test? Either that, or certain devices will be excluded, such as those that include a SIM card slot, which would allow a user to easily use it with another carrier. Or perhaps VZW just thinks their customer base is too stupid to choose a device that doesn't have the VZW Seal of Approval. That last one just might be true, considering how many people seem to have drunk their "we have the best network in the universe" Kool-Aid. |
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patcat88
join:2002-04-05
Jamaica, NY
| said by ISurfTooMuch :Anyone wanna bet that VZW will charge manufacturers for this so-called compatibility test? Either that, or certain devices will be excluded, such as those that include a SIM card slot, which would allow a user to easily use it with another carrier. Or perhaps VZW just thinks their customer base is too stupid to choose a device that doesn't have the VZW Seal of Approval. That last one just might be true, considering how many people seem to have drunk their "we have the best network in the universe" Kool-Aid. No, you can do most of the test yourself if you have a lab full of equipment, I'm not sure if outside labs are used, but the tests they would use are full reproducable by you, the only test that requires VZW's participation is the AGPS/E911 test which must be done at their headquarters in NJ. |
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ISurfTooMuch
join:2007-04-23
Tuscaloosa, AL
| Then why not just use a SIM card and be done with it? I mean, look at AT&T and T-Mobile. They sell devices, but they do nothing to prevent you from getting a handset somewhere else and using it. I can get a phone from them, from an independent retailer, or even from another carrie, provided it's unlocked.
But this is no surprise, given VZW's culture of control. One uniform OS with limited customizability, no ability to use your own audio files as ringtones unless you want to use a hack to get them onto the phone, and no ability to use whatever technologically-compatible phone you choose unless it's been blessed by VZW. |
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adisor19
join:2004-10-11
 ·Velcom
·TekSavvy Solutions..
·Radioactif
 ·Videotron
·Look Communications
| said by ISurfTooMuch :Then why not just use a SIM card and be done with it? I mean, look at AT&T and T-Mobile. They sell devices, but they do nothing to prevent you from getting a handset somewhere else and using it. I can get a phone from them, from an independent retailer, or even from another carrie, provided it's unlocked. But this is no surprise, given VZW's culture of control. One uniform OS with limited customizability, no ability to use your own audio files as ringtones unless you want to use a hack to get them onto the phone, and no ability to use whatever technologically-compatible phone you choose unless it's been blessed by VZW. I really don't think Verizon can afford NOT to have USIM cards for their LTE network. As much as they're crying about it, users WILL want to get another phone and having a USIM card is the only way. Otherwise, this will just mean that Verizon will keep acting like CDMA provider and thus attempting to rape the consumer as usual.
Adi |
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patcat88
join:2002-04-05
Jamaica, NY
| reply to ISurfTooMuch
One of VZW's Open requirements is that VZW stores and VZW tech support be able to do basic settings changes/reprograming your phone, and be able to establish its bar levels and that it signed onto the cell network, without exception. VZW doesn't want their brand image damaged if your users call VZW for tech support because they are stupid, or your tech support is much worse or non-existent than VZW. Also there are E911/AGPS tests that go beyond what the FCC wants, so VZW isn't held responsible by the media for some horrific crime because your device didn't do AGPS. This is for CDMA.
Lawsuit happy US will quickly hold VZW responsible for negligently (and some other legalese words) allowing an unsafe handset onto their network in violation of FCC and tort law. GSM family isn't held responsible because their E911 uses triangulation with no help from the handset. Not sure what the plan is for E911 and LTE. |
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spamd
Premium
join:2001-04-22
Rockford, IL
·Insight Communicat..
| »electronicdesign.com/Articles/In···ID=18631
quote:
Next, I visited with TruePosition, a company that makes location-based-technology products. Their uplink-time difference-of-arrival (U-TDOA) technology is widely used in the cell phone industry to implement the E911 location system mandated by the FCC for all carriers. U-TDOA is the E911 technology used by AT&T and T-Mobile. Roughly 75K U-TDOA basestations are part of the estimated 200K+ basestations in the U.S. This system uses special receivers from three basestations to triangulate on a handset to compute its location usually to within 50 meters. Other cell sites of the cdma2000 variety use a handset solution that requires each handset have a GPS receiver that reports its location back to the carrier for E911 service. A version that helps predict location when the GPS antenna is indoors and out of touch with the satellites is called Assisted GPS.
TruePosition announced their new Hybrid Location Solution at the show. It combines the best features of U-TDOA and A-GPS. New algorithms combine the two technologies to provide higher location accuracy and increased reliability. As it turns out, U-TDOA is better in those locations where lots of cell sites exist and indoors while A-GPS works best when it is in a location with a clear view of the sky like in rural areas. The new hybrid approach is expected to improve overall location capability that will promote better location-based services (LBS).
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When everything is coming your way, you are in the wrong lane. |
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