Tuesday, July 13, 2010

Surveying for VoIP over Wifi for the Blackberry Bold

This scenario was recently raised at work - the customer wants  us to survey a new wifi deployment to support Blackberry Bold phones as the wifi client.  What are the tx/rx stats of the Blackberry Bold, and how would you survey for a Blackberry Bold deployment?

Luckily I work with a lot of super smart resourceful people - and it seems my pal Jeff Russell has come up with the information we need to make sure we can meet the needs of the Blackberry Bold 802.11 chip set.

Jeff says: the Blackberry Bold according to the FCC website appears to have a Marvell chipset, and according to some information out there, Marvell provides the 3G chipset for many BB products. Here is an internal photo Jeff found online:

The website where he found the photo is here: link

Jeff says: this site indicates that the wifi chipset is a Texas Instruments WL1253B. A third-party website referenced the 1271/3 chipset, which is in the same product family, it just adds 802.11n to the fold.  Refer to page 28 of the following PDF: link
It seems that the maximum 802.11b transmit power would be 17 dBm.  13 – 15 dBm for 802.11a/g/n rates.

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