Expert: Roberto Serrano - 4/28/2008

Question
Hi Roberto,
It's a long time i was wondering which difference there is between wcdma and cdma. Are they the same???

Another think i wanted to know is if a cdma phone works in italy under umts, gprs or gsm connection.

Thanks

Answer
Hello Alexander,

I do apologize about the delay in my answer I am in the process of moving and it has been really busy here. Code division multiple access (CDMA) is a channel access method utilized by various radio communication technologies. CDMA employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code) to allow multiple users to be multiplexed over the same physical channel. More technically, W-CDMA is a wideband spread-spectrum mobile air interface that utilizes the direct sequence Code Division Multiple Access signalling method (or CDMA) to achieve higher speeds and support more users compared to the implementation of time division multiplexing (TDMA) used by 2G GSM networks. I hope that I have been of help to you if you have any further questions please do not hesitate to ask. Thank you for your question.