Apple’s iPhone OS 3.0 code details 802.11n Wi-Fi for next-gen iPhone, iPod touch models

“Apple seems to be laying the groundwork to introduce high-capacity, low-power 802.11n Wi-Fi to the iPod touch, and presumably to its 3G-enabled companion, the iPhone,” John Cox reports for Network World.

“The change would be a huge jump in performance for users of both devices, which now use a Wi-Fi chip that supports 802.11b/g, with a throughput of less than 25Mbps on the 2.4GHz band. But the change would almost certainly mean having to buy a new Touch or iPhone with the 11n chip, and some observers say Apple also needs to upgrade the CPU to enable both handhelds to fully exploit 11n performance,” Cox reports.

“Programmers sifting through the recently unveiled beta code of the iPhone 3.0 operating system uncovered some radio component specifications that show a shift to a different Broadcom Wi-Fi chip, the BCM4329, for a future iPod touch model,” Cox reports. “The 3.0 firmware is due to be released this summer, and speculation is circulating that it may coincide with new models of the iPhone 3G and iPod touch.”

Cox reports, “Announced last December, the highly integrated Broadcom chip combines a complete 802.11 a/b/g/n system (MAC/baseband/radio) with Bluetooth 2.1 + Enhanced Data Rate, and an FM radio receiver and transmitter. It supports both the 2.4GHz and 5GHz bands.”

Full article here.

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