December 23, 2009

SMART PHONE FEATURES – UPLINK AND DOWNLINK

Posted in Uncategorized at 2:03 am by grace

This title is not familiar with most of us. Is it? But this feature plays a key role in smart phone’s application.

Here we can see what this is? And why our smart phone is using this technology.

HSDPA & HSUPA

This term stands for high speed downlink packet access. Also it can be stands for high speed downlink protocol access. This has been designed to speed up the data transfer rate. By using this technology our smart phone can able to download any data at up to 10mbps speed.  But in future it can be extended up to 40mbps rate of speed.

This can be vary from one handset to another depends upon provider. Most of the smart phone are now able to access packet office like Microsoft word, Microsoft excel, PowerPoint, one note and PDF. So we can able to access and receive this kind of files from any one.

In other hand HSUPA stands for high speed uplink packet access, this can be used to upload a file up to 7mbps rate of speed. This also can be varying from one to another.

This technology is derived to challenge earlier version EVDO [evolution data optimized] offered by CDMA

Now days, there are more than 80 networks offer this network technology all over the world. More than 150 handset models have been roaming around us with this application.

Not only in GSM, can it be improved with w-CDMA by modifying its modulation and coding. If it engages with CDMA, then become a new channel called HSDSCH stands for high speed downlink shared channel. So this channel can also able to perform its download action like as GSM.

Now all these are available in 3rd Generation [i-e, 3G]. But if our smartphone comes with 3.5 G, then we can expect and avail more from this technology.

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