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?
anyone can do that???
3G is HSPA. Some carriers are just more specific about the connection, hence one might see an E instead of 2G or an H instead of 3G and H+ instead of 4G. Here in the US the only carrier that's specific about the connection used is sprint which displays an Ev (for EvDO) to indicate 3G (even tho their speeds are more like 1G).
I wonder HSDPA is an enhanced 3G which the speed is faster than 3G. Lumia diagnostics has built in setting to turn on or off the HSDPA that I wonder it can set the phone in default 3G or user defined HSDPA. Hence Lumia user can still select in radio setting lower to 2G connection in order to save more standby time.
angler said:
I wonder HSDPA is an enhanced 3G which the speed is faster than 3G. Lumia diagnostics has built in setting to turn on or off the HSDPA that I wonder it can set the phone in default 3G or user defined HSDPA. Hence Lumia user can still select in radio setting lower to 2G connection in order to save more standby time.
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this is exaclty what i ask for, at least save some battery life...
remember how the iphone 3G has great battery life?
because it does not use HSPDA, only 3G, and this is during web usage too..
If my carrier has a HSPA+ 42Mb network, and I have a smartphone with a HSPA+ 42Mb radio and my speed is around 25-30 Mb for example, that means that any other smartphone with a 21, 14.4 and 7.2 HSPA radio should be surfing at their top (theoretical) speed?
HSPA an HSPA+ have inherent problems. If you are getting anywhere near 8Mbps please post a screenshot. More likely that you get between 2-6 Mbps with 170-300 latency or ping and your indoor coverage is worse. This is due to 2 reasons. One, HSPA+ is only 3G with a bit more bandwidth and two, the frequency is 1800mhz or greater which means even a simple window can worsen signal strength.
HSPA+ is not an independent technology, but is a licensed technology making it limited by regulations. Many carriers are using it until their LTE matures. LTE operates at up to 10X the speed, allows double the cells using data, half the cost to the carrier, and a latency around 100 for more responsive sessions. The major players in LTE right now is Seimens out of Germany and Lucent ehre in the states. Their test dummy is Verizon who has 64% of the wold wide LTE market and this is being passed onto Vodofone, an others. In the states ATT has now contracted Seimens and a lesser known company who supplies the core equipment to develop their network. Right now ATT stands at 7% of the world market in LTE.
boosterp said:
HSPA an HSPA+ have inherent problems. If you are getting anywhere near 8Mbps please post a screenshot. More likely that you get between 2-6 Mbps with 170-300 latency or ping and your indoor coverage is worse. This is due to 2 reasons. One, HSPA+ is only 3G with a bit more bandwidth and two, the frequency is 1800mhz or greater which means even a simple window can worsen signal strength.
HSPA+ is not an independent technology, but is a licensed technology making it limited by regulations. Many carriers are using it until their LTE matures. LTE operates at up to 10X the speed, allows double the cells using data, half the cost to the carrier, and a latency around 100 for more responsive sessions. The major players in LTE right now is Seimens out of Germany and Lucent ehre in the states. Their test dummy is Verizon who has 64% of the wold wide LTE market and this is being passed onto Vodofone, an others. In the states ATT has now contracted Seimens and a lesser known company who supplies the core equipment to develop their network. Right now ATT stands at 7% of the world market in LTE.
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Very good words, very informative, I really apreciate it. But I was looking for some light about what I asked.
As You can see in my signature I got 6.67Mbps with a ping of 121, and my phone was on 3G not even on H(HSDPA), and this video shows high speed with the Huawe E372(not in my country, I just found it on youtube).
http://www.youtube.com/watch?v=1PUawx4Au_8&feature=related
here in Dominican republic Orange dominicana had a 14.4Mbps HSDPA network, and now they claim they have a 42Mbps HSPA+ network working in Santo domingo and Santiago and coming soon in other areas.
So, my question is, if I get speeds over 21Mbps, let say between 25-30Mbps, that would mean I will get the top speed in devices with a 21, 14.4 and 7.2 Mbps radios? or I could get 25Mbps with devices with a 42Mbps HSPA+ radio (Huawei E372, for example), and get less than 14.4Mbps in devices with a 14.4Mbps radio, etc?
note: I tried to use the youtube feature but didn't work.
A little tougher to answer based on the specific set up in your country. I only gave a background as example or foo for thought regarding HSPA+. I would venture to guess that you could potentially hit that 25Mbps mark depending on traffic, network conditions, interference, and base equipment. If you are within 2 km of a tower and not in a null sector of the broadcast with no interference it would be possible but mostly at burst speed an not sustained. Let me know what develops, PM me with your speeds when you can test it.
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.
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