Develop Bugs

Wifi 802.11n limited to 65Mbps max?

I've stumbled across a number of postings that mentioned people get a maximum throughput of 65Mbps with the Wifi N mode on the Desire. That would make sense as it likely only utilizes 2.4GHz with limited internal antenna capabilities.
What it also means is that 802.11n is pretty pointless compared to 802.11g which already provides data rates of 54Mbps, and reportedly consumes less battery power.
It was also reported that the official Froyo release already activated 802.11n mode, which would make further modifications unnecessary.
My questions in the interest of throwing anything related to 802.11n out of the ROM:
1) does Froyo indeed include N support? (I don't have a N router and can not test it)
2) is N indeed limited to a max data rate of only 65 Mbps on the Desire?
Thanks for reading and hopefully feedback
Mac

I have an 802.11n router and gets a max of only 65 mbps transfer rate using Froyo. I have since disabled N support on my Desire to save some batt life.

Using Pays Froyo 1.9 with enabled N and connecting up to 72Mb/s.
Sent from my HTC Desire using XDA App

mmaacc said:
I've stumbled across a number of postings that mentioned people get a maximum throughput of 65Mbps with the Wifi N mode on the Desire. That would make sense as it likely only utilizes 2.4GHz with limited internal antenna capabilities.
What it also means is that 802.11n is pretty pointless compared to 802.11g which already provides data rates of 54Mbps, and reportedly consumes less battery power.
It was also reported that the official Froyo release already activated 802.11n mode, which would make further modifications unnecessary.
My questions in the interest of throwing anything related to 802.11n out of the ROM:
1) does Froyo indeed include N support? (I don't have a N router and can not test it)
2) is N indeed limited to a max data rate of only 65 Mbps on the Desire?
Thanks for reading and hopefully feedback
Mac
Click to expand...
Click to collapse
Not sure about anyone else, but with 802.11g the phone will connect at roughly half signal to my router, speeds of about 20-25mbps, when i connect via 802.11n the signal is much better and it connect at full 65mbps, though yeah i never get above 65mbps, i think this has to do with the antenna arangement, 802.11n had 3 antennas, and i think the desire only has 1 so the total speed is limited

i´m more interrested in the speed you transfer with on the diffrent modes since i get less than 20Mbit with G from local to local.. and i wonder if i sould invest in N ? does it give higher transferrates ? eg the speed of the filetransfer between comps..

sorry to ask
sorry to ask a noob question, but where again do you check to see the speed of your wireless, I did it once but can't remember how.

Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
Thank you.

amf said:
I have an 802.11n router and gets a max of only 65 mbps transfer rate using Froyo. I have since disabled N support on my Desire to save some batt life.
Click to expand...
Click to collapse
How did you disable N support on the Desire?

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!

Well im currently connected at 72 using LeeDroid

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
ye this just shows your connected speed..
to get the actual speed you need to transfer a file between computers locally.
those 2 speeds vary alot since it depends on noise and interferrence and loss.
bongmaster2 said:
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!
Click to expand...
Click to collapse
Souns like that could be the reason..

Murd0ck said:
ye this just shows your connected speed..
to get the actual speed you need to transfer a file between computers locally.
those 2 speeds vary alot since it depends on noise and interferrence and loss.
Souns like that could be the reason..
Click to expand...
Click to collapse
the max payload data rate is 40 % of the symbol data rate

bongmaster2 said:
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!
Click to expand...
Click to collapse
OK, that explains it. So we have a physical limit here for the throughput.
How about the better signal strength for N? This may be the result of the coding scheme. And more importantly, does the stock Froyo already provide 802.11n, so we could get rid of all the firmware and module hacks?

Bongmaster is right, you have different speeds for wireless N devices.
The desire is 1T1R (1 transmitter 1 receiver), and therefore can only only get 150mbps as a max theoretical speed. 2T2R is required for 300mbps operation.
However as mentioned, this only works with 40mhz channel bandwidth, 20mhz will cut it in half again.
Can someone force 40mhz channel bandwidth on their router and post results? Most Wireless N routers seem to come with 20mhz as the default setting.

Let me bump this again, there is one important question that was not answered yet:
Does the stock Froyo release (OTA) support Wifi 802.11n or not? I can not test it as I don't have access to a N router.
Thanks!

Everything I have read says yes.
Sent from my HTC Desire using XDA App

mmaacc said:
Let me bump this again, there is one important question that was not answered yet:
Does the stock Froyo release (OTA) support Wifi 802.11n or not? I can not test it as I don't have access to a N router.
Thanks!
Click to expand...
Click to collapse
+1 need to know also.
BUMP.

eXDee said:
Bongmaster is right, you have different speeds for wireless N devices.
The desire is 1T1R (1 transmitter 1 receiver), and therefore can only only get 150mbps as a max theoretical speed. 2T2R is required for 300mbps operation.
However as mentioned, this only works with 40mhz channel bandwidth, 20mhz will cut it in half again.
Can someone force 40mhz channel bandwidth on their router and post results? Most Wireless N routers seem to come with 20mhz as the default setting.
Click to expand...
Click to collapse
I did this and it made no difference, 72Mbps was the maximum it showed.
To be honest, I'm not sure the Desire is even capable of handling anywhere near this speed anyway. When connected to my home wireless at this speed, the actually download speed I get via speedtest.net is somewhere around 15-20Mbps and I have a 50Mbit connection.

Don't know what's up with all yours but mine is running at 425.9 MBPS.. IT is lightening fast, much faster than my 128mbps stick.
the actually download speed I get via speedtest.net is somewhere around 15-20Mbps and I have a 50Mbit connection.
Click to expand...
Click to collapse
That's all your getting from your ISP then when you tested, try it again at 2am or something when there's less people in your area sharing your bandwidth.

Wireless N and battery life

I thought I read somewhere that wireless N uses less battery??
Now the epic does not have a 5mhz radio...
So if I go buy a 2.4mhz wireless n router, will I see better battery life?
Sent from my SPH-D700 using XDA App

Wireless N is more efficient than A B G. But your still having to transfer a lot of data, so I it all depends on how much you use it really. If you mean compared to using 3g then yes it will use less battery.
Sent from my SPH-D700

Will i see an improvment in battery with 802.11n over 802.11g?
(ldle with useage...)
Im sure i wont see much incress in speeds, right?
Thanks!
Nathan
ac16313 said:
Wireless N is more efficient than A B G. But your still having to transfer a lot of data, so I it all depends on how much you use it really. If you mean compared to using 3g then yes it will use less battery.
Sent from my SPH-D700
Click to expand...
Click to collapse

nathan951 said:
Will i see an improvment in battery with 802.11n over 802.11g?
(ldle with useage...)
Im sure i wont see much incress in speeds, right?
Thanks!
Nathan
Click to expand...
Click to collapse
Mhm, you'll see an increase in speeds since 802.11n is able to handle more bandwith than 802.11g
And yeah you'll have better battery since its more efficient
Sent from my SPH-D700

nathan951 said:
I thought I read somewhere that wireless N uses less battery??
Now the epic does not have a 5mhz radio...
So if I go buy a 2.4mhz wireless n router, will I see better battery life?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Not sure how this will be more efficient if your still running in the same spectrum? The whole point in wireless N is to run in a different spectrum then A B G. 2.4 is full and fragmented unless you have a N capable device it is still going to be in the full and fragmented 2.4 spectrum sorry just doesn't compute for me. If your saying a N router will handle 2.4 better not to sure about that. Unless the Epic is N capable and if that is the case I will be going out to buy a new router
Just my 7 cents worth! Sorry use to be 2 cents but inflation you know.

I have wireless n. On eclair I would see massive difference in using wifi over 3g as far as battery but not on froyo they are about the same now. But speed wise the n is way faster and has really good range too.

tazfanatic said:
Not sure how this will be more efficient if your still running in the same spectrum? The whole point in wireless N is to run in a different spectrum then A B G. 2.4 is full and fragmented unless you have a N capable device it is still going to be in the full and fragmented 2.4 spectrum sorry just doesn't compute for me. If your saying a N router will handle 2.4 better not to sure about that. Unless the Epic is N capable and if that is the case I will be going out to buy a new router
Just my 7 cents worth! Sorry use to be 2 cents but inflation you know.
Click to expand...
Click to collapse
Yes he's asking if it will be better to buy an N capable router to replace his A B G.
7 is the new 2
Sent from my SPH-D700

nathan951 said:
I thought I read somewhere that wireless N uses less battery??
Now the epic does not have a 5mhz radio...
So if I go buy a 2.4mhz wireless n router, will I see better battery life?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
From my limited knowledge and experience, it really depends on signal strength. Let's pose an example.
Assume one's 3G signal is 1 bar out of 5, while their 802.11g (Wifi) signal is 5 bars out of 5. Running on Wifi will lead to much greater battery life than on 3G because your connection will be much stronger, i.e. less chance of dropped signal, blah blah, etc.
Now, assume one's 802.11g (Wifi) signal is now 1 bar out of 5, while their 3G signal is 5 bars out of 5. This is iffy territory, but generally one can safely imagine that running on 3G will yield better battery life, simply because the phone is still going to have to work pretty hard to maintain a constant Wifi signal.
Now, move into the realm of 802.11g vs 802.11n. Assume signal strength for both will be equal, either 1 bar out of 5, 2 bars out of 5, 3 bars out of 5, etc. The difference between each signal is efficiency and speed. The faster one can transfer the same amount of data, the less amount of time the phone has to remain in a state of high CPU frequency and heavy load. Furthermore, 802.11n (Wireless-N) is known to have a higher efficiency than 802.11g (Wireless-G), so battery should be saved there, too.
Still, I think it's also safe to say that the difference between a Wireless-G router and Wireless-N router will be about equal in terms of battery life. Maybe you'll get another 15 minutes of battery if you upgrade to Wireless-N. MAYBE. And that's assuming you transfer or download large files on your phone, or listen to lots of Pandora where you're constantly using data. Is it worth it? Will you actually notice that in the real world? Is that assumption even applicable to how you use your phone?
tl;dr - Unless the Wireless-N router's greater range over the Wireless-G router will get you more bars when connected to Wifi on your phone, the difference is likely negligible.

Thanks for the info!!!
Ok so I gather that I won't see a big increase in battery, by buyn a new N router, but I stil might just to add one to my network for stronger signal...
Now I have a large house, 3500sf. I have 3 routers (fios router, one in media closet, one in back side of house) why won't my epic drop the weak wifi, and connect to stronger one? Won't this help battery life?
Also is there a wifi preference order (prefred wifi connection), like on windows?
Right now my routers are just set as access points (not gateways), so my fios router is my dhcp for all wireless routers on the same subnet... currently each router has a different ssid....
Should I set all ssid as the same name, can this help? Or will it just confuse my phone?
Thanks again,
Nathan
Blankrubber said:
From my limited knowledge and experience, it really depends on signal strength. Let's pose an example.
Assume one's 3G signal is 1 bar out of 5, while their 802.11g (Wifi) signal is 5 bars out of 5. Running on Wifi will lead to much greater battery life than on 3G because your connection will be much stronger, i.e. less chance of dropped signal, blah blah, etc.
Now, assume one's 802.11g (Wifi) signal is now 1 bar out of 5, while their 3G signal is 5 bars out of 5. This is iffy territory, but generally one can safely imagine that running on 3G will yield better battery life, simply because the phone is still going to have to work pretty hard to maintain a constant Wifi signal.
Now, move into the realm of 802.11g vs 802.11n. Assume signal strength for both will be equal, either 1 bar out of 5, 2 bars out of 5, 3 bars out of 5, etc. The difference between each signal is efficiency and speed. The faster one can transfer the same amount of data, the less amount of time the phone has to remain in a state of high CPU frequency and heavy load. Furthermore, 802.11n (Wireless-N) is known to have a higher efficiency than 802.11g (Wireless-G), so battery should be saved there, too.
Still, I think it's also safe to say that the difference between a Wireless-G router and Wireless-N router will be about equal in terms of battery life. Maybe you'll get another 15 minutes of battery if you upgrade to Wireless-N. MAYBE. And that's assuming you transfer or download large files on your phone, or listen to lots of Pandora where you're constantly using data. Is it worth it? Will you actually notice that in the real world? Is that assumption even applicable to how you use your phone?
tl;dr - Unless the Wireless-N router's greater range over the Wireless-G router will get you more bars when connected to Wifi on your phone, the difference is likely negligible.
Click to expand...
Click to collapse
Sent from my SPH-D700 using XDA App

2 things you may want to research 1 put your router in the center of your house then range issues are gone. If you cannot put it in the center then look at making the other routers a wireless repeater of the first. Which means they would all put out the same ssid and all be the same wifi connection just repeated from the first router just stronger cuz the 2nd and 3rd routers are transmitting and recieiving data. Now I'm gonna throw in a 3rd option go buy a cisco wireless access point that will have your wifi covered for a qtr mile and has connection speeds of 110mbps rather than 50mbps but that wireless access point is $750

If I do bey an expencive router that has a high output radio, will I have a problem with the router receiving the data packets from my low output epic radio?
Sent from my SPH-D700 using XDA App

jbadboy2007 said:
2 things you may want to research 1 put your router in the center of your house then range issues are gone. If you cannot put it in the center then look at making the other routers a wireless repeater of the first. Which means they would all put out the same ssid and all be the same wifi connection just repeated from the first router just stronger cuz the 2nd and 3rd routers are transmitting and recieiving data. Now I'm gonna throw in a 3rd option go buy a cisco wireless access point that will have your wifi covered for a qtr mile and has connection speeds of 110mbps rather than 50mbps but that wireless access point is $750
Click to expand...
Click to collapse
The connection speeds on any wireless N router are 100mps aren't they? I mean if the device can handle it of course.
Sent from my SPH-D700

ac16313 said:
The connection speeds on any wireless N router are 100mps aren't they? I mean if the device can handle it of course.
Sent from my SPH-D700
Click to expand...
Click to collapse
Just ran a speedtest off my dualband 150mbps router.
on pc i average: 9 ping, 30.5 mb download and 3.5 upload
on phone just got: 29 ping, 13.5mb, and 3.5 upload
So it's not going to be as fast as your connection if you have a good connection, but if it's a slower connection(10m or so), you oughta be fine.

You have amazing speeds haha.
I get about 11mbps dl 4mbps ul
On my computer
And about 14mbps dl and 4mbps ul
On my epic
Sent from my SPH-D700

I have a 15 meg connection, and when I upgraded my router from g to n, I went from getting about 8 meg on the phone to about 12. My new router is a dual band, so that helps too. I live in a crowded wireless area, so channel selection is everything. Luckly there are android apps to help with that. I can't really say if it made much difference in battery life since I change roms too much, but its definately better than the weak 3g signal in my apartment.
P.s. if you're upgrading your router, look at the buffalo wzr-hp-g300nh. Its got dd-wrt, is high powered, and has tons more ram and cpu than anything under $100.
Sent from my SPH-D700 using XDA Premium App

Slow Wifi

I am getting low speeds when using wifi on GS3 compared to my computer and brothers nexus 4. In my room which is the room next to the living room with the router I get about 16-20 mbps on 2.4 ghz and about 8-10 on 5ghz. My brother was getting about 40mbps on his nexus and my computer about 46 mbps.
What can I do to fix?

aamir123 said:
I am getting low speeds when using wifi on GS3 compared to my computer and brothers nexus 4. In my room which is the room next to the living room with the router I get about 16-20 mbps on 2.4 ghz and about 8-10 on 5ghz. My brother was getting about 40mbps on his nexus and my computer about 46 mbps.
What can I do to fix?
Click to expand...
Click to collapse
You could try on the ROM to set for one frequency band only instead of Auto. For example, 2.4 and not 5ghz. Also, your Router's admin page could give preference to a particular device with QoS settings.
Maybe reboot the router and cable modem/dsl to see if that might help.
It's a possibility you could try to change the wifi channel you are connecting on as well. It may be set as auto but may get interference. I would only caution, the laptops seems to have higher powered antennas and our phones usually aren't terribly high power so they may have the possibility of being susceptible to more interference whereas the laptop is not.

Get inSSIDer from the play store. It will help you find the best wifi channel.
Sent from my SGH-T999L using xda premium

TomTcom said:
You could try on the ROM to set for one frequency band only instead of Auto. For example, 2.4 and not 5ghz. Also, your Router's admin page could give preference to a particular device with QoS settings.
Maybe reboot the router and cable modem/dsl to see if that might help.
It's a possibility you could try to change the wifi channel you are connecting on as well. It may be set as auto but may get interference. I would only caution, the laptops seems to have higher powered antennas and our phones usually aren't terribly high power so they may have the possibility of being susceptible to more interference whereas the laptop is not.
Click to expand...
Click to collapse
I turned QoS off, speeds on every other device are great except for the phone itself. Like I said my bro standing next to me and my laptop in my room got around 40mbps (nexus 4) and my laptop got around 46-48 mbps while my S3 was only able to pull near 20mbps. I've tried limiting my frequency scans to 2.4ghz or 5ghz only and have not noticed any differences. Actually 5ghz seems to be slower which is weird since my bro and my phone are the only ones able to connect to that band. You guys think changing wifi drivers would make a difference in my phone? I know different kernels have different wifi drivers built in.
DocHoliday77 said:
Get inSSIDer from the play store. It will help you find the best wifi channel.
Sent from my SGH-T999L using xda premium
Click to expand...
Click to collapse
I used wifi analyzer to set the channel.
any other help from anyone would be appreciated.

A70 wifi network speed

Is this max network speed for a70?
This is screenshoot form wifi settings.
On other phones i get 130mbps.

mine says 65. Ultra slow downloads. Heard some people talkin about using the 5 Ghz band of certain equipped routers or n band. It is just so slow downloading from my wlan I figured it must have something greater wrong with it. Like hackers again...who knows.

This is what mine says

On mine is 72mbps network speed and cant get over 49mbps download speeed on speedtest.net

433Mpbs on 802.11AC for me

I get a picture 130 mbps on my oreo device but both pie devices say 65 mBps.
My 1000/100/10 switch connects ethernet to various devices which easily shuttle the expected 80-130 actual MB/s around of large filetypes.
I don't have any sort of 5 Ghz router just the crappy device that the company sent out. And on that the MAC filter keeps getting disabled which increases my paranoia. Till 2 weeks ago I used the same crappy standard gateway/router for 6 years and frankly it was equal or better experience. At least that one started up reasonably fast. And its MAC filter was always on. But that could just indicate that the neighborhood brats had an easy backdoor to that one and didn't have to brute force off the MAC filter.
In my opinion the MAC filter getting disabled (now a few different times it has happened) indicatives a much much larger problem
I have been intending to get my own personal router for a while but there are too many options so I haven't had the scope to choose one yet.
Other phone in network displays 117mbps and is a Pie.

On same network 2.4ghz on s8,s7 i get 130mbps and on a70 72mbps max.
Just tried 5ghz on same network and got 150mbps it is a little faster.
But on 2.4ghz 72mbps is max.

hi guys
i have also same problem . cannot connect more than 72mbps , with 5ghz 150mbps max . something wrong but i could not find what is the problem .
you guys found any solution ?

mine has 72mb on 2.4 and 433mb on 5g...

Tactman said:
mine has 72mb on 2.4 and 433mb on 5g...
Click to expand...
Click to collapse
i think all a70 phones are like that

I just tested and got 158Mbs with a 5Ghz wifi connection, although only around 60Mps on 2.4Ghz.
Andre

I'll check mine later and see if I can figure out what's happening

Right next to the router I can see 96mbps in 2.4Ghz

Must be something wrong. I got 433mbps.

Nothing is wrong.
The Snapdragon 675 supports 2x2 chains on WiFi, but the A70 only has a 1x1 antenna so it connects at half the speed.
Link speeds on the A70 are as follows:
2.4 GHz = 72 Mbps
2.4 GHz (with 256 QAM) = 96 Mbps
5 GHz = 433 Mbps
On all devices with 2x2 on WiFi, the speeds above will be doubled on those.
These are in ideal network conditions with great signal strength and low interference. These numbers could reduce if you are far from the router.
This is not abnormal. A lot of mid-range devices only have 1x1 for WiFi.

Nexus 5X Wifi slow speeds/weak signal

I bought a Nexus 5X from ebay a few months ago sold as new condition.
I'm having different issues with the Wifi. First the signal strength and range are much worse than all my other devices. In one room of the house farthest from the router it loses connection every few minutes and maintains a speed test result of less than 10Mbps with 2.4 GHz. With 5 GHz it can't even see the access point.
My OnePlus 7 Pro gets 40+ Mbps on both 2.4 and 5 GHz with no issues at all from the same location.
With a different ethernet connected wireless access point in the room the Nexus 5X gets 25-30 Mbps, which is acceptable but it should be faster considering it has full signal strength.
With the phone right next to the router connected to 5 GHz it will show a full speed of 44 Mbps but file downloads (using thinkbroadband test downloads) never load faster than about 100 KB/s which isn't even close to 44 Mbps. I can't even upload to my local network file share at more than 1 MB/s.
I'm not sure how speedtest.net is showing fast speeds but file transfers are extremely slow. The signal range is much worse than any other device I have.
I had a Nexus 5 before this 5X and didn't start to have wifi issues until it was more than 5 years old. Is it possible that this phone was refurbished but sold as new? Or is this just common and I shouldn't expect better?
I've tried two routers and different Android ROMs from 6.0 up to 9, all with similar results which confirms this is a hardware issue.
I've tried contacting my ISP for these issues in the past but they always respond saying their tests show nothing wrong so its not a problem.
I have the squaretrade warranty from ebay but is it worth it trying to get this issue fixed or if i get another phone will it have the same issue?
Web browsing works fine but file downloads and uploads are extremely slow.