- From: Andrei Popescu <andreip@google.com>
- Date: Wed, 29 Jun 2011 11:45:43 +0100
- To: Steve Block <steveblock@google.com>
- Cc: Doug Turner <doug.turner@gmail.com>, Anne van Kesteren <annevk@opera.com>, Lars Erik Bolstad <lbolstad@opera.com>, "public-geolocation@w3.org" <public-geolocation@w3.org>
On Tue, Jun 28, 2011 at 6:10 PM, Steve Block <steveblock@google.com> wrote: >> How much battery life savings is there? > The argument we discussed at the face-to-face was that the UA could > simply check WiFi and/or Cell IDs until it got close to the relevant > location, and only then enable full location look-ups, possibly > including GPS. Not sure I fully understand this: how would the UA know it got close to the relevant location solely by looking at WiFi and CellIDs? Wouldn't it have to use the network to get a lat/long back? And if so, doesn't it mean it would keep the 3G / WiFis antenna working all the time, which would drain the batter considerably? If this is true, it sounds do me that the battery life savings are very questionable. Thanks, Andrei
Received on Wednesday, 29 June 2011 10:46:10 UTC