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Old 08-29-2008, 12:19 PM
     
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equus
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Quote:
Originally Posted by Justin View Post
If anyone still thinks the roughlydrafted article is a "crock of****" might want to dig into the UTMS technology here:

Universal Mobile Telecommunications System - Wikipedia, the free encyclopedia

which leads to:

Radio resource management - Wikipedia, the free encyclopedia

"RRM involves strategies and algorithms for controlling parameters such as transmit power, channel allocation, handover criteria, modulation scheme, error coding scheme, etc. The objective is to utilize the limited radio spectrum resources and radio network infrastructure as efficiently as possible."

"Efficient dynamic RRM schemes may increase the system capacity in an order of magnitude, which often is considerably more than what is possible by introducing advanced channel coding and source coding schemes."

Then to:

Power control - Wikipedia, the free encyclopedia

"Power control, broadly speaking, is the intelligent selection of transmit power in a communication system to achieve good performance within the system. The notion of "good performance" can depend on context and may include optimizing metrics such as link data rate, network capacity, geographic coverage and range, and life of the network and network devices."

"Using a higher transmit power, however, has the following drawbacks:

Overall power consumption in the transmitting device is higher. This is of particular concern in mobile devices, where battery life is reduced correspondingly.

Interference to other users in the same frequency band is increased. In cellular spread-spectrum systems such as CDMA, where users share a single frequency and are only separated by different spreading codes, the number of users that a cell can support as well as the size of the cell are typically limited by the amount of interference present in the cell; increased interference therefore results in decreased cell capacity and size."
Justin, please don't mistake my reply on the other post, reason why I say it was a crock is because of this>>>> wouldn't Apple have consulted at&t about their real technical workings and or specs of their network configurations? or wouldn't at&t have supplied Apple with some technical information of their tower configurations? I would think a device and or a radio chip manufacturer would design a product to fit the bill of a service provider so it is "totally compatible" with that system to operate seamlessly. I am sure the FCC specs and or GSM operating parameters are available to device manufacturers. IF Apple is exclusively going to produce a device to work ONLY on at&t networks here in US wouldn't it be "normal" to design a device that's compatible with that service providers technical specs?
Hence my comment on that its a crock.........NOT about your post, I hope I did not come off arrogant or insult you, IF I did please accept my sincere apologies.
Now, its a toss between DID Apple push this device too SOON? or did at&t not have a clue about the impact of large sales numbers and get their systems up to standards to accommodate these large numbers of iPhones pinging away at their towers? Seems to me that a while back if you recall the media jumping on Apple about how the iPhone "almost broke" an universities' wireless network and they all used the word "ddos" in vain? Remember the solution for that was FIX the system at that location and the iPhone was NOT the culprit. So, I think it seems to me both parties here might NOT have had any clue about final sales figures and somebody was caught sleeping at the wheel and now all are in "damage-control-mode".
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