TomaTito said:
Thanks for the heads up, already saw the great posts you made there.
Still not sure what protocol the Gamepad uses since Miracast/WiDi/etc all have an inherent lag.
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Did a little research (I've tried before during launch but nothing came up) and there are little snippets:
- It uses a modified Wi-Fi protocol designed for low-latency transmission, establishing its connection with the console by using a variant of the WPS process, with proprietary transfer protocol and software co-developed with Broadcom [source]
- Controller inputs themselves are beamed back to the Wii U via the same WiFi channel (180 times per second) [source]
- And some actual unfiltered information [source]:
| While some “journalists” reported that the Wii U gamepad is using the Miracast technology, a Wi-Fi standard, it turned out that this was never the case. Instead, Nintendo decided to reinvent four different protocols (video streaming, audio streaming, input streaming as well as a light request-reply RPC protocol), and embed them in a slightly obfuscated version of WPA2, sent over the air using 5GHz Wi-Fi 802.11n. A small ARM CPU is embedded in the Wii U Gamepad (codenamed DRC) and runs a realtime operating system to handle network communication. In the Wii U, another ARM CPU (codenamed DRH) does the same thing. |
Sorry for going off-topic guys :)
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It has it's drawbacks though, the gamepad already starts to lose connection at the other end of my living room, nor will it work through the patio door. I have to move the WiiU outside if I want to sit on the deck with the gamepad, while it's less than 8 ft from where it normally sits.
Yet it gives possibilities for wireless vr headsets, perhaps the WiiU tech is fast enough for that. However game streaming VR games will be impossible. Vita and PS TV should be a bit better as they support direct WiFi, perhaps that will be a future update for remote play too. Too bad the ps4 doesn't have 5ghz wifi.
Anyway the lag is a much more restricting factor than 720p.
