5 ms·
The hardest part is to get power management right. Anyone can build a modem that "works", but nobody other than Qualcomm, (and I really mean that), has gotten p
by msravi 7y ago
The hardest part is to get power management right. Anyone can build a modem that "works", but nobody other than Qualcomm, (and I really mean that), has gotten power management right.
What I mean is that even today, if you buy a 4G enabled phone not powered by Qualcomm, your battery will drain in a few hours and you'll be left with a dead brick for the rest of the day.
Source: I spent years building 3G and 4G PHY chips at various QC competitors that have all since folded up or have been bought and merged into other teams.
- wil421 7y ago>What I mean is that even today, if you buy a 4G enabled phone not powered by Qualcomm, your battery will drain in a few hours and you'll be left with a dead brick for the rest of the day. I had an iPhone 7 with an intel modem (AT&T iPhone) for 3 years. The battery did not die in 4 hours.
- MuffinFlavored 7y agoThere isn't a Qualcomm chip on the iPhone 7 whatsoever?
- selectodude 7y agoStarting with the iPhone 7, all non-CDMA models had intel modems.
- msh 7y agoBullshit on the drained in a few hours. IPhone xs have quite fine battery life. See https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling-the-silicon-secrets/9 https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-re... for example.
- etcet 7y agoThat test is using Wifi, not LTE.