Re: [MEXT] [dmm?] Surprising assertion about make-before-break handover prevalance

From: Sri Gundavelli <[email protected]>
>>Will devices keep multiple radios powered on simultaneously in the
>>future?
>> It depends.
>> Battery technology still lags the advances of radio, processors and
>> displays on devices. And hence it generally boils down to optimizing
>> battery in handheld devices which implies that you would not want to
>> always keep multiple radios switched "On" all the time. You could if you
>> were willing to carry around a battery backpack all the time :)
>
>
>After all the standardization around MCoA/IFOM, building all the
>hype/coolness around driving one flow on path and another the other path,
>its sad to note that we simply don't have the devices/or the battery
>technology that can keep multiple radios up at the same time for a
>reasonable length of time (except few exceptions).


=> This is not about MCoA or flow mobility. Of course we have the ability
to have multiple interfaces up and many of us use it everyday. I assumed
Charlie's question was not about this trivial case, which we all know
exists, but rather about a single technology doing make before break
handovers. I know of only one radio technology that did that in real
deployments (OFDM).

Hesham



>Most devices/operator
>configuration still try to keep only one radio active at a time, so they
>can
>claim better battery serving time. So, we are not there yet, but from
>what I
>believe with LTE radios, the power requirement is only going up.
>Hopefully,
>there will be a major breakthrough in the battery technology that will
>allow
>all the radios to be up for a day with a recharge ...
>
>
>Sri
>
>
>
>
>
>
>
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