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How Does Wireless Tether Work?

Discussion in 'Android Devices' started by Ruben, Jul 2, 2010.

  1. Ruben

    Ruben Android Expert
    Thread Starter

    How does wireless tether work? I know that it can receive a WiFi signal but it can also transmit one? Just curious.

    Also, is the new WiFi tether coming in the OTA going to be faster than the root one? The root WiFi tether is fine, but I most certainly wouldn't mind faster.

    Thanks
     



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  2. Bug Splat

    Bug Splat Android Enthusiast

    Wifi tether allows you to connect another mobile device to you phone via wifi and your phone supplies the attached device with broadband via 3G like such

    Laptop---->Phone----->3G network------>Internet

    From what I hear the OTA update will enable wifi tethering but for an added cost ($20/month).
     
  3. Ruben

    Ruben Android Expert
    Thread Starter

    lol. Bug, I'm asking for a more in depth explanation. Not the obvious stuff. But thanks for the pricing.
     
  4. Bug Splat

    Bug Splat Android Enthusiast

    Oh, sorry. Didn't know how technical you wanted it.

    Yes your phone can transmit/broadcast a wifi signal and connect via Adhoc with another device. Be aware though that it is a major battery hog with wifi and 3G both going full bore at the same time.
     
    Ruben likes this.
  5. Ruben

    Ruben Android Expert
    Thread Starter

  6. Mahalo

    Mahalo Android Enthusiast

    True that! So much so that tethering is better... you get to charge your phone off of the laptop and get the internet to your laptop in return.

    Like, symbiotic, man!
     
  7. Ruben

    Ruben Android Expert
    Thread Starter

    What is adhoc?
     
  8. Mahalo

    Mahalo Android Enthusiast

    It is a wireless connection of mobile devices which requires no end user configuration or intervention other than selecting to establish it. So... you don't need to configure a network interface to establish connection.
     
  9. Ruben

    Ruben Android Expert
    Thread Starter

    I see. Is it slower?
     
  10. Mahalo

    Mahalo Android Enthusiast

    Slower than what, specifically? Any time you have any networked communication you will see a measurable decrease in throughput in each step from source to destination.
     
  11. Ruben

    Ruben Android Expert
    Thread Starter

    Well I assume that the adhoc connection is an adhoc connection because it shows up as a device in my WiFi menu. But will the VZW 3G mobile hotspot be adhoc?
     
  12. Mahalo

    Mahalo Android Enthusiast

    To address the first part of your post:
    WEP and WPA2 networks can each advertise their "names" or conceal them. That does not make them adhoc networks. Each requires end user intervention in that keys must be known. Just because you see a network does not mean it is accessible.

    To address the second:
    Making a 'Mobile Hotspot' which is vendor specific isn't really an option since they would exclude most mobile devices (notebooks, tablets, etc...) which they intend to serve. Can you imagine the uproar? "Bummer, I had a Toshiba and got connected but my friend with a Sony couldn't."

    Often, proprietary software will be required, but this is not end user intervention. This is simply a mechanism for automated authentication.

    This said, as far as I know your adhoc network will be visible to the world (at least your proximity.)
     
  13. jasonb1985

    jasonb1985 Android Expert

    obviously our phones send and receive data over wifi. when tethering, the phone is still sending and receiving data over wifi, it's just connecting to another device. not to be rude but it is a pretty easy concept. it is an amazing thing though.

    right now i am on a camping trip, and i of course brought my phone and laptop with me so i have been tethering a bit. i just happened to be in an area with fantastic signal strength and speedtest.net shows that i am getting up to 2.5Mbps down, and about 1Mbps or so up. it's working GREAT! it's still not cable or fios fast, but it's fast.
     
  14. jasonb1985

    jasonb1985 Android Expert

    not all devices can connect or even see an Ad-Hoc network. i know my Playstation 3 can't see it and neither can the Archos tablet we have on display at my job. other phones also won't see it. pretty much just laptops, and maybe ipads can see and connect to it.
     
  15. aaronrockies

    aaronrockies Lurker

    i Will say it does work as a wifi hot-spot, so i connected using my ipad up to the ssid the nexus made, and connected fine, but un sure if charges will appear, i will keep a eye out on my next bill.. but they don't detect then that saves me $25/mon for the 3g data, if i can just use my phone $30 unlimited..
    Aaron from Summit County real estate group
     
  16. drdoom

    drdoom Android Expert

    I'm glad you bumped this near year old thread to tell us about your "unique" experience.
     

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