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Open Loop and Closed Loop in LTE
Hi all, please help me explain open loop and closed loop in LTE
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2016-10-21 01:52 PM
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Senior Member
Reputation: 763
Re: Open Loop and Closed Loop in LTE
Originally Posted by
hoangnamhn
Hi all, please help me explain open loop and closed loop in LTE
Check out very informative site - http://www.sharetechnote.com/html/PowerControl_LTE.html
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Post Thanks - 1 Thanks
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Re: Open Loop and Closed Loop in LTE
Maybe i am wrong here, but what i understood E/// doesnt use Closed Loop Power Control.
They only use Open-Loop Power Control with / without Fractional Power Control (Full Pathloss compensation or partial Pathloss compensation).
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Post Thanks - 1 Thanks
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Member
Reputation: 187
Re: Open Loop and Closed Loop in LTE
Hi
Open Loop is when the UE doesn't report the PMI -Precoding Matrix Index and the eNodeB used one fix.
Closed loop is when the UE reports the PMI and the eNodeB takes in consideration the these weights.
By default E/// is using Open Loop
Hope this clarify your question
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Post Thanks - 1 Thanks
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Re: Open Loop and Closed Loop in LTE
Hi all, but when use closed loop ==> throughput edge cell > when use open loop
==> Why not use closed loop??
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