Question about network signal in relation to battery life - Xperia Z3 Q&A, Help & Troubleshooting

I notice thay if i turn off LTE, I get a stronger cell signal on H+. Would I get better battery life by turning LTE off when im using home wifi? I dont lose the signal on LTE or HSPA, but the signal is a bar or two higher normally on HSPA

I believe LTE gives better battery life pretty close to/on part with WiFi levels. Future LTE modems coming out are going to be more battery friendly than WiFi.
LTE>3G as long as there is strong signal if not stick to 3G I guess.

The number of bars is arbitrarily set by the rom for a given dBm and can't really be compared between 3G and LTE. LTE will still function well at lower signal strength than 3G.

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[Q] Cm7 wifi strength

Is there any way to boot WiFi reception on cm7? I love the Rom, but WiFi is a bit sketchy. I'm using the stock radio.
I switch to stock and its way better!
HTC Inspire 4g on Cm7
I've tried multiple radios and multiple ROMs (including stock) but I haven't found much difference in wifi signal strength. In theory, a ROM should not impact signal strength since this is at the radio level. However some ROMs might display bars differently for a given decibel level. Therefore, you should always use decibels (not bars) when comparing wifi strength, using a program like WiFi Scanner or Network Signal Info. ROM A may display an 80 dBm signal as 4 bars, where ROM B displays the same signal as 3 bars.
Is it normal for the Mbps of y connection to go u and down so much? Seems like it wants to drop to 1 MBPS and hang there. This causes my internet browser to be very sluggish. Am I missing something?
I've noticed it also in my anecdotal experience:
At a far end of my house with CM7 and stock radio, I get sketchy Wifi reception (phone flips between wireless and wifi.) Can't surf without disruptions as wifi connection gets dropped and have to wait for the phone to get on 3G.
With stock ROM and stock radio, I can surf without any issues on wifi at the same location.
Theoretically, ROM shouldn't make any diff, but I'm seeing otherwise in practice.

Does the signal bar represent data or just voice/text?

I've always been curious about this. When I have 2 bars does that mean I have a bad data signal or a bad voice/text signal? Or is it both?
Thanks for any info
Sent from my ADR6400L using das bamf 1.6.3 remix with imoseyon's lean 2.5 kernel
It seems like it only shows bars for 1x. If I disable 1x on my phone, I have no bars, and the signal strength says -120dBm. I still have 3G since data works though.
If you use sensorly you can probably see the signal strength for 3G. Mine says -81 dBm with 1x off.
A little O/T but I have found that the signal bar strength bars to be kinda misleading. In BAMF 1.6.3 I was getting 6 bars almost all the time. In CM7 I get 1 or 2, but I'm still at about -84dBm.
Actually both if you notice when you attempt a Data connection (this is on a sense rom) the bars will show your EV-DO connection and then when the data transmission stops its goes back to 1X. Now on CM7 it always shows EV-DO until you get a call in then shows 1X

[Q] "Mobile Network Type" Question with AT&T

I got my Infuse a few weeks ago and while I'm happy with the speeds over the Captivate (which never seemed higher than 2mbps) I don't think I am getting HSPDA speeds.
With 2-5 bars I am averaging around 1.5-3.5mbps in and around Boston which is all covered by AT&T's "4G" service (Im only talking HSPA+ here not LTE). My highest was 6.7mbps and 7.4 mbps once a week or so ago.
In looking at my "Mobile Network Type". I think that I am very infrequently if ever seeing it say HSPDA. It generally says UMTS.
Am I correct in saying the UMTS is the 3G service that basically the IPHONE gets?
Is anyone else out there seeing faster speed and their "Mobile Network Type" say HSPDA regularly?
UMTS is ATT's basic 3G service...and is generally a very slow network but has a big coverage base....
HSPA is the newer 3G service which gets even better speeds but it still limited in some areas.....An iPhone as you mentioned will connect to UMTS or HSPA depending on cell tower location......HSPA+ which is what the INFUSE connects to is nothing more then HSPA with better backhaul for higher speeds but has the same coverage and range of regular HSPA.
HOWEVER, the way it works is that it connects to the STRONGEST signal at the time, if UMTS is outputting a stronger signal from a cell tower you will latch onto that one more often then HSPA....
At work and traveling to and from, i am usually on HSPA, but at home that signal is weak (location of cell tower with HSPA amplified) so i am usually on UMTS...
actually hspa runs on top of umts and only switches when you start downloading. if you idle, it should say umts.
The Jack of Clubs said:
actually hspa runs on top of umts and only switches when you start downloading. if you idle, it should say umts.
Click to expand...
Click to collapse
That's not always true, it depends on the cell site architecture the device is pinging - my device and many previous device idle on HSPA frequently and in other spots, UMTS.
Sent from my SAMSUNG-SGH-I997 using XDA App
A useful post to tweak your 4G settings: http://forum.xda-developers.com/showthread.php?t=1127980&highlight=HSPA+cat+control&page=2

[Q] WCDMA Only

My 3G signal is always very strong apart from maybe 1 or 2 areas my transport to other areas goes through (drops to maybe 1 bar, or to EDGE).
Would, in theory, setting my preferred network to "WCDMA Only" save any (even if a little) battery compared to the default of "GSM/CDMA Auto", since it wouldn't bother searching for a 2G signal despite my 3G always being very good? Or does GSM Auto only search for a better 2G signal when 3G is low?

poor LTE signal

I own an h830 and has poor LTE signal compared to other phones. Is this a common issue with this phone?
Also when it finds a LTE signal it usually is about -100 so it switches back to 3g within seconds

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