SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Qualcomm Moderated Thread - please read rules before posting -- Ignore unavailable to you. Want to Upgrade?


To: Clarksterh who wrote (14013)8/16/2001 8:21:00 PM
From: foundation  Read Replies (1) | Respond to of 197214
 
While it is inevitable that the handset chew through power when receiving and especially when broadcasting high rates of data, there is no reason that it should do so when in standby.
----------

I suspect you'll find your answer lies with asynchronous handoff.... and the extra energy required for the handset to keep in communication with the cell(s) while in call-waiting mode.... The search window for asynchronous operation is dramatically larger than for cdma2000 (due to chip rate 3.125 times larger [3.84/1.2288] and the inability to estimate the round trip delay between handset and target cell) - for coverage of 10 km target cell approximately 5 times larger.... for coverage of 40 km target cell 12 or more times larger...

This is one reason why the article states that wCDMA handsets use more electricity... and that this is a fact of life... with the only apparent solution in the hands of future, superior battery performance... (or switch to synchronous service <g>)

However, say battery performance improves.... the wCDMA liability remains, as cdma2000 can use this for longer lasting performance with concentrated data service loads, while wCDMA simply gets its handset to last through the day with light service...

OH, MIGHTY...... AM I ON TRACK HERE???