How does 3 G Work ??? - Touch Pro2, Tilt 2 Windows Mobile General

Supposing 2.1 GHz (2100 MHz) is allocated for 3G, how will 3G work..
Will it require another frequency slot such as 900 MHz to upload and use the existing 2100 MHz to Download data ???
or use the same 2100 MHz for all types of tranfers viz., both Upload and Download ???
Please Clarify...
Note : My understanding is that it shall use the same frequency band to UPLOAD / DOWNLOAD Data as well....

Before your fingers get shot, type the subject on google and check the first link... that way you won't get the, use the search button excuse etc etc.

BrokenPixel said:
Before your fingers get shot, type the subject on google and check the first link... that way you won't get the, use the search button excuse etc etc.
Click to expand...
Click to collapse
What is this anyway to do with my question anyway... and i didnt understand what you said in the above comment is another thing

indianinworld said:
Supposing 2.1 GHz (2100 MHz) is allocated for 3G, how will 3G work..
Will it require another frequency slot such as 900 MHz to upload and use the existing 2100 MHz to Download data ???
or use the same 2100 MHz for all types of tranfers viz., both Upload and Download ???
Please Clarify...
Note : My understanding is that it shall use the same frequency band to UPLOAD / DOWNLOAD Data as well....
Click to expand...
Click to collapse
3G doesn't need a specific band like 2100MHz to work. Like most other wireless technologies, it can work with many different frequencies. However, carriers have certain bands licensed to them. Obviously they don't wan't to share the same frequencies because conflicts arise.
3rd Generation wireless technologies also don't need one wireless band for upstream, one for downstream... but separating the two makes each piece faster. Therefore carriers usually use HSDPA and HSUPA (3.5G wireless technologies) on different bands... like 900/2100.
But to answer the real butt of your question: no you can't get 3G on your device unless it is specifically designed to work for your 3G network provider. It doesn't matter if it supports only one of your carrier's frequencies, or even both of them (because there are sub-bands as well).
If you need a 3G device, buy it from your carrier or make sure that you know which exact carriers it is designed to work on.

indianinworld said:
Supposing 2.1 GHz (2100 MHz) is allocated for 3G, how will 3G work..
Will it require another frequency slot such as 900 MHz to upload and use the existing 2100 MHz to Download data ???
or use the same 2100 MHz for all types of tranfers viz., both Upload and Download ???
Please Clarify...
Note : My understanding is that it shall use the same frequency band to UPLOAD / DOWNLOAD Data as well....
Click to expand...
Click to collapse
I think you ask the wrong forum.
I will suggest you to google on the following:
WCDMA
HSDPA HSUPA
UMTS
This will give you a brief idea. If not, there are plenty of books and classes you can take...

Actually, each of the listed bands is typically listed into uplink and downlink allocations. I think for UMTS uplink is a bit below 2100, and downlink is above. It's been a while.
Either way, Google it.

cookiemon said:
I think you ask the wrong forum.
I will suggest you to google on the following:
WCDMA
HSDPA HSUPA
UMTS
This will give you a brief idea. If not, there are plenty of books and classes you can take...
Click to expand...
Click to collapse
Can you please answer my question instead of asking me to google... Google is not always an answer to everything at everypoint of time..
Thanks for this reply anyway !!!

Related

Touch Pro2 in stock on expansys-us.com

I just saw this on expansys-usa with 17 Touch Pro2 in stock. The details sheet seems to be a world phone. Below is the link. Does anyone know if this unit would work on AT&T 3G network in the US?
http://www.expansys-usa.com/d.aspx?i=179174
Thanks, Nick
nicknhutho said:
I just saw this on expansys-usa with 17 Touch Pro2 in stock. The details sheet seems to be a world phone. Below is the link. Does anyone know if this unit would work on AT&T 3G network in the US?
http://www.expansys-usa.com/d.aspx?i=179174
Thanks, Nick
Click to expand...
Click to collapse
This has already been answered before.
The Rhodium they are selling only supports 900 MHz and 2100 MHz for 3G/HSPA. AT&T requires either 850 MHz or 1900 MHz. So the clear answer is No, it will not work with AT&T 3G.
To answer the obvious question somebody else will ask next, the 2100 MHz band is used in T-Mobile's 3G network, however TMo's network requires that the phone support both 1700MHz AND 2100MHz for the up and down streams, so this phone will not function with the US T-Mobile 3G Network either.
The phone WILL function for making calls or data connections over the Edge bands (GSM/GPRS/EDGE) for both US providers...So the phone is certainly functional, but it won't make high speed data connections in the United States.
If anything I've written is incorrect, please mock me

Regarding Custom ROMS

Hi there
Firstly.. No, this is not a typical noobie thread asking for the best custom ROM out there, as I know it's related to personal preference. My problem is that I have a download limit, so I can not test out every ROM I'd like to.
A solution to this problem would be if you guys could recommend a few of the fastest ROMs for me, in your experiences (I'm not so interested in eye candy, more usability.. and most importantly I want it AS SMOOOOOTH AS POSSIBLE, I love smoooothness ) After a few ROMs are recommended I'll have a better picture of what to check out and what to download and I won't be wasting toomuch of my download limit.
Thanks in advance
Why do you have a download limit? What is your limit?
I live in South Africa where not everyone has unlimited internet.. My download limit is 5gb a month (but thats for my whole family...) , but I'm pretty close to blowing it :-/
C'mon, can't anyone help me out here?
seeM_ZA said:
C'mon, can't anyone help me out here?
Click to expand...
Click to collapse
I think you should start a new thread (search first) entitled "Fastest Custom ROM?" That will get a discussion started, and people who are interested in the subject will see the title and post their opinions.
I'll try that.. I wanted to avoid that though, 'cause I didn't want this to be those typical "What is the best custom ROM?" threads, and recieve the typical reply of "There is no best custom ROM"
seeM_ZA said:
I'll try that.. I wanted to avoid that though, 'cause I didn't want this to be those typical "What is the best custom ROM?" threads, and recieve the typical reply of "There is no best custom ROM"
Click to expand...
Click to collapse
Just sort the forum by the ROM w/ the most posts or views. If you go with those they will most likely be the most tested, have more user support/solution, and they have gone through a couple different versions.
burtonsnow8 said:
Just sort the forum by the ROM w/ the most posts or views. If you go with those they will most likely be the most tested, have more user support/solution, and they have gone through a couple different versions.
Click to expand...
Click to collapse
Yes, but the specific question is which is the FASTEST ROM.
I tried a couple roms and decided I hated 6.5, so I cannot say for sure...but I can point you in a direction to check threads...
Energy, Cell, Josh, and DeepShining have all had very positive responses, and speed is something commonly mentioned among the pluses.
I hope this helps. Perhaps reading those particular threads can help you decide before wasting bandwidth.
stevedebi said:
Yes, but the specific question is which is the FASTEST ROM.
Click to expand...
Click to collapse
In other words it is literally impossible to tell. The fastest ROM will be a today screen or titanium with no mods, it really boils down to what you want your phone to do though. I personally like eye candy and stability, you can see what I've chosen below for those. Don't get me wrong, it is still pretty fast, just not as fast as a bone stock ROM would be. I'd be willing to download, burn, and send a DVD full of ROMs, let me know.
burtonsnow8 said:
In other words it is literally impossible to tell. The fastest ROM will be a today screen or titanium with no mods, it really boils down to what you want your phone to do though. I personally like eye candy and stability, you can see what I've chosen below for those. Don't get me wrong, it is still pretty fast, just not as fast as a bone stock ROM would be. I'd be willing to download, burn, and send a DVD full of ROMs, let me know.
Click to expand...
Click to collapse
Sorry for taking so long to reply, I've reached my download limit lol.. I'm posting this from my phone's internet.
WOW! That DVD would be TRULY awesome, and I'd REALLY REALLY appreciate it. How can we go about doing this kind sir?
I have tested out LOADS of ROMs.
But I always go back to one in particular,
Touch X "SENSE 2.0B X-TREME"
Now unfortunately this ROM has been dis-continued.
But 2.0 is still available for download:
http://forum.xda-developers.com/showthread.php?t=575747
For speed its great. If I have no today plugin running when i soft reset, there's only 36% memory usage.
Manilla reaps the memory a bit, having around 50% memory usage after soft reset.
Which is why I use other today plugins like 'iphone today' and 'throttlelauncher'
Over all its the the best (in my personal opinion mind)
And its not littered with unnecessary apps
Can someone help me with my Slate AQT100 Tablet custom rom?
Okay so I've been trying to locate a custom rom for my tablet and no luck as follows; BrandBrand name of the device. This may match with the manufacturer Slate 10 Tablet AQT100 TD-LTE
ReleasedFirst official market release date in (year, month) 2015 Oct
Hardware DesignerThe company which designed this device Quanta Computer
Application processor, Chipset:
CPU ClockFrequency of the square signal which schedules the internal operation of microprocessor (synchronous sequential logic). The current consumed by the processor is approximately proportional to clock rate. 1100 MHz
CPUManufacturer part number and most important characteristics of the IC which includes the main application processor or processors Qualcomm Snapdragon 210 MSM8909, 2014, 32 bit, quad-core, 28 nm, Qualcomm Adreno 304 GP Collapse datasheetCollapse datasheet
Graphical SubsystemGraphical Subsystem:
Graphical ControllerManufacturer and part number of the graphics controller IC or commercial name of the intellectual property (IP) if the graphics controller is the part of a chipset Qualcomm Adreno 304 Cellular Phone:
Supported Cellular BandsList of supported cellular networks with band names. For example GSM900 refers to the GSM system with the 890-915 MHz uplink and 935-960 downlink bands. LTE 1900 MHz (Band 2, PCS)LTE1900 phones support LTE 1900 MHz (PCS , also referred as LTE Band 2) band (downlink: 1930 - 1990 MHz, uplink: 1850 - 1910 MHz) , LTE 1700/2100 MHz (Band 4, AWS)LTE1700/2100 phones support LTE 1700 / 2100 MHz (AWS also referred as LTE Band 4) band (downlink: 2110 - 2155 MHz, uplink: 1710 - 1755 MHz) , LTE 850 MHz (Band 5)LTE850 phones support LTE 850 MHz (LTE Band 5) band (downlink: 869 - 894 MHz, uplink: 824 - 849 MHz) , LTE 700 MHz (Band 12)LTE700 phones support LTE 700 MHz (LTE Band 12) band (downlink: 728 - 746 MHz, uplink: 698 - 716 MHz) , LTE 1900 MHz (Band 25)LTE1900 phones support LTE 1900 MHz (LTE Band 25) band (downlink: 1930 - 1995 MHz, uplink: 1850 - 1915 MHz) , LTE 850 MHz (Band 26)LTE850 phones support LTE 850 MHz (LTE Band 26) band (downlink: 859 - 894 MHz, uplink: 814 - 849 MHz) , TD-LTE 2500 MHz (Band XLI)TD-LTE 2500 MHz phones support TD-LTE 2500 MHz (LTE Band 41) band (2496 - 2690 MHz) bands
Supported Cellular Data LinksList of supported cellular data links and rates. LTE (Cat. unspecified)LTE (Long Term Evolution) or the E-UTRAN (Evolved Universal Terrestrial Access Network), introduced in 3GPP R8, is the 4G access part of the Evolved Packet System (EPS). , LTE 150 Mbps / 50 Mbps (Cat. 4)LTE 151.2 Mbps / 50.4 Mbps (Cat. 4) data links
SIM Card SlotSupported Subscriber Identification Card (SIM) Format like mini-SIM, micro-SIM, nano-SIM, embedded SIM, etc. Nano-SIM (4FF)
Cellular AntennaPhysical antenna layout. Most common type: internal. Historic types: fixed external, pull-out, open-out Internal antenna
Cellular ControllerManufacturer part number of the cellular modem and controller IC or commercial name of the intellectual property (IP) if the function is the part of a chipset Qualcomm MSM8909 ,Secondary Cellular PhoneSecondary Cellular Phone:
Sec. Supported Cellular Networks: No
Sec. Phone Controller IC: Qualcomm MSM8909
Control PeripheralsControl Peripherals:
Touchscreen TypeDetermines how the touchscreen module senses the touch of the screen Capacitive multi-touch sensing screen
Touchscreen Simultaneous Touch PointsDetermines how many touches the touch-sensitive screen module is able to simultaneously detect Yes

[Q] Just a little help with the quadband

hey guys.. ordered an unlocked G2 from ebay. Just a quick question, will the phone work here in the PHILIPPINES? knowing that the phone is quadband.. I just want to make sure.. so any answers? appreciate it guys.. lotsa thanks!
The quad band refers to the GSM frequencies, so, yes, it will work for talking on the phone. Data and email are another matter. The phone is Dual band, UMTS 1700 2100 MHz, and HSPA+. This means that your data network has to be be on the 1700 and 2100 MHz frequencies, or else, you'll have an expensive phone with no 3G/4G data.
Edge (2G) data will work, if that is supported by your network.
thanks for the quick reply bro.. i learned that my local carrier's 3G frequency band (UMTS) is 2100 MHz.. I assume my phone will support the 3G capabilities of my network if that is the case. Am I right? appreciate your next reply

[Q] Convert F180K to F180S

Hello guys.. i have a problem.. I have a optimus G with soft F180K (its for KT network) and i have a LTE plan in SKtelecom (F180S) but my LTE connection its not working. Can somebody help me by answering to this questions?
If i flash the F180S will solve my problem? Its this even possible? If yes, can somebody point me to the right way ?
Thanks in advance.
completition
So guys to complete a little the status of my phone.. i have root access.. also CWM installed.. my question is if i install a custom rom i will get access to more bands for LTE or the device is limited somehow..
thanks..
confirm your in Korea ? right
i have flashed a basebands of k to l and l to K so i can confirm, its save but i didnt got the signals.
flashing kernel should be ok too because its the same device
so i say yes you can flash, but if both networks uses same lte frequencies it will work with proper apn, other wise no.
yes im on korean network. im not sure if both work on same lte frequencies . the apn its not a problem, i have .. but atm it shows connecting to 4G but no data in... so something its wrong.. i think its software related .. i can connect to 3G but no 4G..my phone have for LTE B3 (1800) and B8 (900).. by installing a custom rom will abtain more freq.. ? or ill have to do more than that,, and if yes what i need to do ? one link yould be nice noob friendly if possible
thanks..
anoth3r said:
yes im on korean network. im not sure if both work on same lte frequencies . the apn its not a problem, i have .. but atm it shows connecting to 4G but no data in... so something its wrong.. i think its software related .. i can connect to 3G but no 4G..my phone have for LTE B3 (1800) and B8 (900).. by installing a custom rom will abtain more freq.. ? or ill have to do more than that,, and if yes what i need to do ? one link yould be nice noob friendly if possible
thanks..
Click to expand...
Click to collapse
1: it has to be apn if your 3g works
2: software doesn't enable somethings that's not there in hardware, so if both sets have same frequencies radio and both networks uses same it will work.
skip custom and flash stock roms and if you get zero network that try your model's baseband.
but remember it is possible basebands are blocked to work on others network.
Thanks.
atifsh said:
1: it has to be apn if your 3g works
2: software doesn't enable somethings that's not there in hardware, so if both sets have same frequencies radio and both networks uses same it will work.
skip custom and flash stock roms and if you get zero network that try your model's baseband.
but remember it is possible basebands are blocked to work on others network.
Click to expand...
Click to collapse
I hoped that the hardware supports more LTE freq and its only a limitation by software..
Thanks..Meanwile i found out everithing i nedeed but its a lot of thing to read .. thats why I ask any moderator to close the thread if possible not to pollute anymore the forum..
Thanks once again..
wiki
KT Corporation South Korea 850
KT Corporation South Korea 900
KT Corporation South Korea 1800
SK Telecom South Korea 850
SK Telecom South Korea 1800
this is what i found on wiki.. the LTE freq of the korean networks. So my phone its 1800 capable.. can someone give me some ideeas why i dont have LTE ?
Red marks ?
Frequencies used on SKTelecom Network in Korea
Frequency Frequency Width Protocol Class Note
800 MHz (824~829,869~874) 10MHz CDMA 2G
850 MHz (829~839,874~884) 20MHz LTE 3.9G Band 5 (main frequency)
1800 MHz (1715~1725,1730~1735,1810~1830) 35MHz LTE 3.9G New band 3
1800 MHz (1755~1765,1850~1860) 20MHz LTE 3.9G Be returned by 1Q 2014
2100 MHz (1930~1960, 2120~2150) 60MHz UMTS/HSPA 3.5G
2300 MHz (2300~2327) 27MHz Mobile WiMAX 3.9G
KT
Radio frequency range frequency width Generation Radio Interface Assignment Terms License Note
800 MHz (811-817,856-862) 12 MHz TRS
850 MHz (819-824,864-869) 10 MHz 3.9G LTE 50 billion won[18] for 10 years planned
900 MHz (905-915,950-960) 20 MHz 3.9G LTE
1800 MHz (1735-1740,1745-1755,1830-1850) 35 MHz 3.9G LTE 2G by Jan/Mar 2012
2100 MHz (1960-1980,2150-2170) 40 MHz 3.5G W-CDMA 130 billion won for 15 years
2300 MHz (2330-2360) 30 MHz 3.9G WiBro 12.68 billion won with rural area support Mar 2019(for 7 year)
its because of what i marked in red _
Nope,you can't enable other frequencies. That's why there are so many variants of optimus G. There is no phone supporting all LTE from al regions.Unlike 2G/3G,which have a global standard,LTE is still young,evolving and developing.

4G problem

Hello community what a great help can someone found from here ... so here we go ...
My problem is i turn on my mobile data to get 4g then stay's for a while but then it dissapears and then drops down to E and it wont change from there ... and in order to bring back the 4G i need to restart the phone or to shut it down and turn it on again ...
do i need to change my rom or i need to change / flash my radio ? rom is the stock rom i think i got on it ( 5.0.1 sense 6.0 )
see attachment
thx in advance
What is your location and carrier, and what bands do they use for 3G and LTE?
redpoint73 said:
What is your location and carrier, and what bands do they use for 3G and LTE?
Click to expand...
Click to collapse
my location is cyprus and my carrier is MTN now the bands i think are these but i am not sure i just find out now from a website http://www.worldtimezone.com/gsm.html
Cyprus 900 1800 3G 2100 MTN / 3G 2100 Cytamobile-Vodafone / 4G LTE MTN / 4G LTE PrimeTel;
italianveins said:
my location is cyprus and my carrier is MTN now the bands i think are these but i am not sure i just find out now from a website http://www.worldtimezone.com/gsm.html
Cyprus 900 1800 3G 2100 MTN / 3G 2100 Cytamobile-Vodafone / 4G LTE MTN / 4G LTE PrimeTel;
Click to expand...
Click to collapse
That doesn't tell me what band MTN uses for LTE (4G). You should call your carrier and ask them (and confirm they use 2100 MHz for 3G).
redpoint73 said:
That doesn't tell me what band MTN uses for LTE (4G). You should call your carrier and ask them (and confirm they use 2100 MHz for 3G).
Click to expand...
Click to collapse
ok i go tomorrow morning at there office and ask them in person what you just ask me .
thank you in advance as always very much i appriciate ur time as well
italianveins said:
ok i go tomorrow morning at there office and ask them in person what you just ask me .
thank you in advance as always very much i appriciate ur time as well
Click to expand...
Click to collapse
ok so frequencies are from 900 - 1800 for all speeds E up tp 4G and are using At&T Mobile
italianveins said:
ok so frequencies are from 900 - 1800 for all speeds E up tp 4G and are using At&T Mobile
Click to expand...
Click to collapse
I take this to mean 900 and 1800 MHz (bands 8 and 3), rather than the way you have it typed "from 900 - 1800" which makes it sound like a range, which doesn't make any sense.
I also don't think this information is correct (as I've interpreted it), as far as I can tell, 1800 MHz (Band 3) is not used for 3G anywhere in the world: https://en.wikipedia.org/wiki/UMTS_frequency_bands#Deployments_by_region_.28UMTS-FDD.29
You need to be sure of exactly what band is used for each (2G, 3G, LTE), before we can proceed:
What band (or bands) used for 2G?
What band (or bands) used for 3G?
What band (or bands) used for LTE?
It pretty rare that the same exact band or bands are used for all 3 (2G, 3G and LTE) by one carrier, so the answer is expected to be different for each, and should be asked, and answered on an individual basis.
Reason we need to be so specific here, is that there is no radio for this phone that supports Bands 3 and 8 across 2G, 3G and LTE (and in fact, no radio that supports Band 3 for 3G).
Once you've properly determined what bands are needed, and identified what M8 version supports those bands, the way to proceed would be:
1) S-off by sunshine
Note: If sunshine temp root doesn't work, you may need to unlock bootloader and root, before you can s-off with sunshin
2) Possibly need to change phone's CID and/or MID
3) Flash the firmware or RUU which contains the desired radio baseband
Even then, its not guaranteed that LTE will work. I've see a good number of folks on these forums that properly flashed the radio baseband (or converted to another version by RUU) that supports the desired bands, but still didn't get LTE service. I don't know why this happens, and have never seen a solution. But its a distinct possibility.
But at a minimum, you should be able to get 3G working on your carrier. Which alone may make the above process worthwhile.
redpoint73 said:
I take this to mean 900 and 1800 MHz (bands 8 and 3), rather than the way you have it typed "from 900 - 1800" which makes it sound like a range, which doesn't make any sense.
I also don't think this information is correct (as I've interpreted it), as far as I can tell, 1800 MHz (Band 3) is not used for 3G anywhere in the world: https://en.wikipedia.org/wiki/UMTS_frequency_bands#Deployments_by_region_.28UMTS-FDD.29
You need to be sure of exactly what band is used for each (2G, 3G, LTE), before we can proceed:
What band (or bands) used for 2G?
What band (or bands) used for 3G?
What band (or bands) used for LTE?
It pretty rare that the same exact band or bands are used for all 3 (2G, 3G and LTE) by one carrier, so the answer is expected to be different for each, and should be asked, and answered on an individual basis.
Reason we need to be so specific here, is that there is no radio for this phone that supports Bands 3 and 8 across 2G, 3G and LTE (and in fact, no radio that supports Band 3 for 3G).
Once you've properly determined what bands are needed, and identified what M8 version supports those bands, the way to proceed would be:
1) S-off by sunshine
Note: If sunshine temp root doesn't work, you may need to unlock bootloader and root, before you can s-off with sunshin
2) Possibly need to change phone's CID and/or MID
3) Flash the firmware or RUU which contains the desired radio baseband
Even then, its not guaranteed that LTE will work. I've see a good number of folks on these forums that properly flashed the radio baseband (or converted to another version by RUU) that supports the desired bands, but still didn't get LTE service. I don't know why this happens, and have never seen a solution. But its a distinct possibility.
But at a minimum, you should be able to get 3G working on your carrier. Which alone may make the above process worthwhile.
Click to expand...
Click to collapse
Hello and thank you very much for you time i will go again and ask for more direct info's about bands individual
i have found back up of a radio and i flash my phone and now i do get LTE singnal's but hardly get H and 3G when no 4G detected it goes to E ... well ....
now i got another problem maybe i shou ld post a new thread ... my gestures won't work suddenly ( omg !! ) i calibrate and uncheck and reboot and check them from setting's over and over nothing worked
italianveins said:
i have found back up of a radio and i flash my phone and now i do get LTE singnal's but hardly get H and 3G when no 4G detected it goes to E ... well ....
Click to expand...
Click to collapse
You need to specify exactly what you flashed, and where you got it from, for this info be worthwhile in any way.
Also, still need to know what bands your carrier is using, in order to determine what radio to flash.
Why you are flashing radios, without knowing if its the right one (supports your carrier's bands)? This is really careless and reckless.
Is the phone s-off? That is normally the only way you can flash radios manually (aside from a signed OTA, RUU, firmware.zip). And flashing things with s-off is a great way to brick the phone, if you flash the wrong thing (and it doesn't sound like you know well enough to know right vs. wrong).

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