ලංකාවේ HSDPA (Mobile Internet) මුලාව…
හැමෝටම තියන ගැටලුවක් තමයි මේ මෝබයිල් පුලුල් පරාස ඉන්ටර්නෙට් නොහොන්, Broadband HSDPA මේතර්ම් ගැටලු සහිත හා, මේ අය කියන 3.6mbps, 7.2mbps වේහයන් ලැබෙන්නේ නැත්තේ කියලා. ගොඩක් අයට මේගැන හරි වැටහීමක් නැති නිසා මේකියන Marketing tricks වලට රැවටෙනවා. මේවා විකුනන අයවත්, Marketing කරන අයවට් මේවා ගැන දනේ නෑ, මේක හරිම සරලව කියල දෙන්න කියලා තමයි මම මේ අද බලන්නේ.
මොකද මේ ගොඩක් HSDPA බාවිතාකරන අය කියනවා, මගේ එක slow, තව අය කියනවා මගෙ එක fast කියලා, මම මේ දැනුත් ටොරන්ට් බානවා කියයි 
ඇයි මේක මෙහම වෙන්නේ. ඇයි මේ service providers ලට කියන වේග දෙන්න බැරි. මොනාද මේ අය අපෙන් වසන් කරනේ කියන කරුන තමයි මම අද කියන්න යන්නේ.
ඉහත රූපයේ තියෙන්නේ සරල ජංහම දුරකතන ජාලයක් අනුරුවක්.
හරි දැන් අපි බලමු මේ HSDPA විකුනන අය කියන 3.6mbps, 7.2mbps, 14.2mbps කියන්නේ මොකද්ද කියලා. මේ වේගයන් එක cell tower (කුලුණකට) ලබාදිය හැකි උපරිම වේගය, නැතුව එක user කෙනෙකුට ලැබෙන වේගය නොවෙයි., මේක හොදට සිහියට ගතයුතු දෙයක්. උදාහරනයක් ගමු අපේ මේ ඉහත රූප සටහනේ Cell Tower C, අපි කියමු මේ tower එකේ වේගය 14.2mbps කියලා. මෙහි වේගය, Phone D, G (14.2/2 = 7.1mbps) අතර බෙදී යනවා. නමුත් සැබෑලෝකයේ එක cell tower එකක් ඉන්න users ලා ගාන මීට වඩා බොහෝ වැඩියි. ඒකෙන් පේනවා මේක වෙලද උපක්රමයක් මිස, සැබෑ ලොකයේ ලබාදෙන්න පුලුවන් දෙයක් නොවන බව.
Broadband speed ගැන කියනකොට, SLT ADSL වැනි ඒවාගේ කියන 512kbps, 2mbps කියන් වේගයන් වලට කියනේ Last mile connectivity, ඒ කියන්නේ ඔබ හා ඔබගේ සේවාදායකයාගේ ජාලය එක්ක ඔබ සම්බන්ද වන වේගය, නමුත් මේ HSDPA එකේ දී කියන්නේ ඔව්න්ගේ tower speed මිස, ඔබට සැබැවින් සම්බ්න්ද විය හැකි වේගය නොවයි. මොකද මේ කියන last mile එකද shared වෙනවා. මීට අමතරව සෑම කුලුනක්ම HSDPA 3.6mbps, 7.2mbps හෝ 14.2mbps වෙන්නේ ද නෑ, උදාහරනයක් තමයි ඩයලොග්, ඒ අයගේ 1.8mbps සිටන් 14.2mbps වෙන කුලුණු තියනවා. ඒක නිසා එක එක අයට ලැබෙන වේගයන් වෙනස්.
ඉහත කීව දේවල් අමතරව ලොකුවටම කරන වසන් කිරීම තමයි, Base Station සිට කුලුණට ඇති සම්බද තාවය, මෙය බොහෝවිට E1 එකක් වෙයි, මෙහි උපරිම වේගය 2048kbps (2.048mbps full-duplex; 2048kbps up and 2048kbps down) වෙයි. ඉතින් 14.2mbps උවද කුලුණ එයට ලැබෙන උපරිම වේගය 2048kbps මෙයද, voice, data හා tower control signal අතර බෙදීයනවා. City limit (කොලබ) ඉන්න අයට මේක ගොඩක් බලපාන්නේ අඩුවෙන්, මොකද මේ cell tower ගොඩක් හා, ඒ වයේ capacity ගොඩක් වැඩිවන ලෙස තිබීම. මොකද කොලබ දවල් කාලයේ තියන traffic load එක control කරන්න, රෑට ගොඩක් වේගයන් ලැබෙන්න පුලුවන්, මොකද සිටින users ලා ගාන රැට ගොඩක් අඩුවෙන නිසා.
ඉහත රූපයට අනුව අපි හිතමු Cell Tower C වෙත ඇත්තේ E1 එකක් කිලා, එවිට Phone D හා G අතර මේ 2048kbps බෙදී යනවා. මොකද tower speed එක 14.2mbps වෙන්න පුලුවන් නමුත් tower එකේ දත්ත සම්බන්දතාවය 2mbps. හිතලා බලන්න එක tower එකක් ඉන්නේ users ලා දෙන්නද කියලා ? මේක තමයි මේ ලොකුම හේතුව HSDPA වේගයන් ගොඩක් අඩුවීමට, මේවා ගැන කිසිම provider කෙන්ක් කතා කරන්නේ නෑ.
අනිත් වරද තමයි, Cell Tower කීපයක් අන්තර් සම්බන්ද කිරීම, ඉහත රූපයේ cell tower B ගමු, එය base station එකට සම්බන්ද කර ඇත්තේ cell tower A හරහාය, එවිට cell tower B හි සිටින අයට ලැබෙන්නේ Cell Tower A වෙත ලැබෙන වේගයන්ටත් වඩා අඩු වේගයක්, මේක ගොඩක් තියන ගැටලුවක් තමයි දුර පලාත්වලට යනකොට. මෙ වෙලාවට තමයි Phone E වෙත වෙලාවකට වැඩි වේගයන්ද, තව වෙලාවකට වැඩි වේගයන්ද ලැබෙන්නේ. මොකද Phone E, cell tower B සම්බන්ද වෙලා ඉන්නකොට අඩු වේගයක් ලැබෙනවා, නමුත Cell tower E වත සම්බද උන විට වැඩි වේගයක් ලැබෙනවා, මක්නිසාද Cell tower E හි කිසිම user කෙනෙක් නැතිවීම හා Cell tower E, Base Station වෙත කෙලින්ම සම්බන්දව තිබීම. තවද ඔබ Cell tower එකේ සිට ඉන්න දුරද ඔබට ලැබෙන වේගයන්ට බලපානවා, cell tower එකෙන් දුරස්වෙන්න වෙන්න ලැබෙන වේගය අඩුවෙනවා.
හරිම ආකාරය HSDPA tower එකක් 3.6mbps නම්, එය E1 x3 (2048×3=6144kbps) වත් සම්බද විය යුතුයි, මෙම 6mbps හින්, 3.6mbps HSDPA/3G/GPRS වෙන්වන අතර, ඉතුරු (2.4mbps) ටික Voice හා Control සිග්නල් වලට වෙන් වෙයි. මෙවැනි එකක normal එක user කෙනෙකුට 1-1.5mbps වේගයක් ලබාගන්න හැකිවෙනවා සැබෑලෝක (real world) තත්වයකදී.
මෙතනින් පේනවා මේ marketing සදහා කියන අංක කිසිම realistic නොවන බව.
හරි අන්තිම ගැටලුව, මේ International Bandwidth ගැන. මේ අය කියන්න පුලුවන් අපිට 100mbps, 155mbps හෝ 4gbps තියනව කියලා, නමුත් මේ කිසිම කෙනෙක් කියනේ නෑ, HSDPA සදහා වෙන්කරපු කොටස. ඒ අය කතා කරනේ ඒ අයගේ මුලු දාරිතාව මිස, HSDPA සදහා වෙන්කරපු කොටස ගැන නෙමෙයි. මොකද මේ වෙන්කරල තියන කොටස 10-20mbps වගේ තමයි වෙන්නේ.
ඉහත මම කියපු කරුනු මේ රැහැන් රහිත සේවාවන් වන CDMA, GPRS, WiMax වෙතද බලපානවා.
මතක තියාගන්න HSDPA යනු ගෙදර තියන Broadband එකට altanative එකක් නොවෙයි, මේක මේ MOBILE Internet නොහොත් ජංහම අන්ත්ර්ජාල සේවයක්, මේක broadband replacement එකක් නොවෙයි. HSDPA යනු Broadband මුලාවකි. කිසිම විටක 1-1.5mbps වඩා වේගයක් බලාපොරොත්තු වෙන්න එපා.
January 18th, 2009 at 11:55 pm
හොඳ පැහැදිලි කිරීමක්. මට දැන් තියෙන ප්රශ්නේ ඇයි M3 හොඳ ස්පීඩ් එකකුයි, Dialog අප්සට් ස්පීඩ් එකකුයි එන්නේ කියන එක. ඒකෙන් කියන්නේ මොබිටෙල් පාරිභෝගිකයන් අඩුයි, ඩයලොග් පාරිභෝගිකයන් වැඩියි කියන එකද? එහෙම නැත්තන් මොබිටෙල් යටිතල පහසුකම් ඩයලොග් යටිතල පහසුකම් වලට වඩා උපරිමයි කියන එකද?
එතකොට Original Broadband සම්බන්ධතාවය ADSL ද?
)
SLT ADSL කෙරුවාව තව ටිකක් පැහැදිලි කරන්න පුලුවන්ද? (තව බ්ලොග් පෝස්ට් එකක් ලිව්වත් කමක් නෑ
January 18th, 2009 at 11:56 pm
මට නම් වේගය 500Kbps උනත් කමක් නෑ(අනේ ඔය 7.2Mbps නම් නැතත් කමක් නෑ). කනෙක්ෂන් එක නිතරම down වෙන්නේ නැතිනම්. අදත් මගේ Dialog HSDPA එක රෑ 7 ඉඳල 11 වෙනකම්ම වැඩ කලේ නෑ. අද නෙට් ගියේ m දැන්නම් මේක අතැරලා දාන්න කාලේ හරි වගේ.
January 19th, 2009 at 12:07 am
ගොඩක්ම ගැටලුව ඩයලොග් හී තියන ගැටලු tower to base station හා international bandwidth issues, එක tower එකක් ඉන්න users ලා tower එකත දරාගත නොහැකිවීම්, මෙයට අමතරව Dialog හි IP Core එකේද ගැටලුවක් තියනවා.
ADSL (Asymmetric Digital Subscriber Line) යනු Broadband ලබදෙන තවත් එක විදියක් පමණයි, DSL, WiMAX, Cable උදාහරන. මේකේ ORIGINAL කියලා දෙයක් නෑ.
January 19th, 2009 at 12:11 am
@පහන්
ඩයලොග් හොද නෑ කියන එක මම දන්න නිසා තමයි මම ඩයලොග් වලින් ගැලවිලා මොබිටෙ ගත්තේ.
මම නම් කියන්නේ හොද නැත්නම් මාරු වෙන්න, ගිවිසුමක් තියනවනම් ඒකට නීතිමය පියවරක් හෝ TRC වත පැමිනිලි කරන්න, නිකන් හිටියොත් මොකුත් වෙන්නේ නෑ.
January 19th, 2009 at 12:15 am
@ කාලිංග
අනිවා මොනව හරි කරනවා. ඒත් මේ විභාගේ ඉවර කරල ඉන්න ඕන මොනව කරන්නත්.
January 19th, 2009 at 12:15 am
ගොඩක් වැදගත් ලිපියක්, සමහරු SLT ADSL වලට ආදේශකයක් ලෙස භවිතා කරන්න ගොස් ඇනගන්නවා.
January 19th, 2009 at 4:18 am
මේම ක්රියාවලියට ලංකාවේ කියලා දාලා තියෙන්නේ ඇයි? ඇමෙරිකාව හෝ වෙන රටක වෙන්නේ නැතිවාද?
January 19th, 2009 at 9:01 am
@බින්කු
ඇමරිකාව, එන්ගලන්තය විතරක් නොවෙයි, අනිත් බොහෝ රටවල consumer protection කියන එක ඉතා හොදින් වැඩ කරනවා, miss leading advertising එහමෙ ලංකාවේ වගේ කරන්න බෑ.
හොදම උදාහරනය තමයි, apple සමාගම මගින් UK හි, රූපවාහිනීවල ගිය apple iPhone 3G වෙලද දැන්වීම, එය අයිකරගන්න apple සමගමට සිදුවිය, වෙලද දැන්වීමේදී වෙබ්පිටු ලෝඩ් වීම සැබෑ ලෝකයේදී වෙනවට වඩා වැඩියෙන් පෙවෙනවා කියන වරද තමයි.
අනික මම මෙතෙන්දී කියනේ ලංකවේ මේවා හරියට දෑන්නේ නෑ, යටිතල පහසුමක් බාගෙට, බොරුවට අරක මේක කියලා විකුනන එක තමයි කරන්නේ. මොකද ලංකාවේ TRC එක හිටියට කරන දෙයක් නෑ නේ… නිකන් මිනිසුන්ට කරදර වෙන නීතී ද දා ඉන්නවා.
January 19th, 2009 at 9:54 am
Thanks for the detailed explanation.
Just a minor correction. Although the speed drops when users increase it does not happen proportionately. Means if the total capacity of the tower is 7.2 Mbps and there are six users what each gets is not 1.2 Mbps – its more. Otherwise given the number of broadband users today we will end up with almost zero.
Also in our testing we have seen HSPA speeds are very erratic. Your post partially explains why.
We will be studying this in detail in the next phase of our Broadband benchmarking project.
January 19th, 2009 at 10:05 am
@Chanuka Wattegama
i agree with you some what but not all, as most users get assign with a code, most cells do not use advanced turbo codes and micro cells, this is true with in Colombo but not when your outside of it.
also most people think theoretically not all users will be active at the same time, now again and again its proving wrong as most users now either run download, run torrent or watch live video, so the bandwidth get used more then people think, yes i have seen its hitting 10kbps or less
even on HSDPA high implementation white peppers does say on a good cell with advanced code can go around 1-1.5mbps continues speeds but not to accept more.
personally even few days back i tested the AT-Tester with few places, not happy with the results it give, some times its wrong by 60-70%
January 19th, 2009 at 10:13 am
May I know with what you benchmark our results?
January 19th, 2009 at 10:26 am
Another point.
I have encountered extremly low speeds at certain places. One such experience is documented here. http://lirneasia.net/2008/08/ruined-broadband-at-polonnaruwa-should-we-blame-mobitel-dialog-or-king-parakramabahu
However, as Mahinda Herath (formerly at SLT and now CEO skynetwork.lk) correctly notes, it is not HSPA, but GPRS. (Automatically shifts to latter when HSPA not available)
You will also note the differences between the two tools I have used.
January 19th, 2009 at 10:27 am
@Chanuka Wattegama
i was doing some test with Mobitel for the last few days on HSDPA speeds, we tested it having a file located with in there network and i can get 2.5-3mbps from the FTP test and what AT-Test shows, the local IP’s speed was around 600kbps
, even when i download a file from USA/UK HTTP download its more then 2mbps
all i have noised is, what ever we do, AT tester hardly hit 1mbps mark on any ISP, even now i can download a file from SLT 202KB/s abut AT-Tester will not show the same or simply says packet loss or some thing
ISP test fail most of the time
i think the issues i talk about Dialogblogs is still there in the tool.
January 19th, 2009 at 11:05 am
Please tell what you mean by FTP test. What tool you use? Then we can see where this mismatch arises.
AT-Tester has been tested against Bandwidth monitor under different circumstances and the results tally.
The issues you raised in Dialogblog is only on the selection of ‘national server’ which anyway we do not give much importance to in Sri Lanka. (Except few like defence.lk none of SL server has high traffic) So that has nothing to do with this.
January 19th, 2009 at 11:06 am
ඉතා හොඳ කතිකාවතක් නොවැ ගිහින් තියෙන්නේ, ගොඩක් දේවල් දැනගත්තා. තුති.
January 19th, 2009 at 11:09 am
@Chanuka Wattegama
You will also note the differences between the two tools I have used.
I’m not gonna comment about Dialog speeds as I’m fed up taking about it, simply Dialog sucks,
HSDPA/wimax or even there so call WiFi hot SPOTS.
yes if your using a Mobile internet connection, if the tower is HSPA, the modem will go on HSPA, if the tower is WCDMA (3G) modem will switch to WCDMA, if the tower is GPRS/EGPRS (EDGE) it will switch to that. but you always have the open to tell the Modem 3G only.
GPRS/EDGE will be around 24kbps-64kbps
3G will be around 386kbps
this is understandable and there is nothing wrong with it.
here on this post I’m taking about HSDPA, and any one testing this should be on HSPA network.
so don’t get mixed up with GPRS speeds and HSDPA speeds.
January 19th, 2009 at 11:36 am
normally i use a HSDPA router with SNMP traffic monitor in place, we tested with a server located with in Mobitel Network, near there border routers and we used FileZilla for testing, and both shows the same speed, same as speedtest.net.
anyway, give me few days, i will do some test with ADSL and WiMAX with AT-Tester and post the results, i don’t use Windows XP any more, I’m with Vista as you know AT-Tester don’t run on Vista, so I’m gonna install a Laptop with XP and test it and let you know.
even now i tested AT-tester with SLT, the ISP test and ping test fail.
January 19th, 2009 at 11:36 am
There is little achieved by go on ranting ‘Dialog sucks’, ‘Mobitel sucks’ etc. I see once in a month a new post on this. It will only release your frustration but does that change anything?
It is useless to wait till TRC takes action. So don’t go on blaming TRC. Let us try to do something. What we try to do is to collect enough user information so that we can challenge the ISPs. Does anyone have such data already? Not just one-time speeds, but info on throughput, latency etc over longer periods at different times of the day. If anyone has such data we are glad to have a look.
January 19th, 2009 at 11:53 am
@Chanuka Wattegama
well, personally i have work with both Dialog and Mobitel with this issue, even back in the days. even dialog/mobitel them self read my blog and they comment on issues with me personally, they track issue. to me my blog works
well, personally i dont mind people writing blogs about any thing as they should have the freedom of speech.
I’m not saying any thing bad about what your trying to do, its always a good idea to have a good bench mark in place about ISP, but issue is they can always say if the tool is not accurate the results are not accurate.
January 19th, 2009 at 11:55 am
We have tested Bandwidth monitor and speedtest.net almost simultaneously for the same servers and found serious mismatches between results. Bandwidth monitor was used for longer periods so I guess gives better averages. So I have my doubts about speedtest.net.
Bandwidth monitor test results in Feb 2008 and AT-Tester results in Oct 2008 for SLT ADSL and Dialog Wimax tallied. We have not tested HSPA in Feb 2008 so cannot comment on that.
Why ISP test fails is that IP is not available at that moment. It happens when the IPs are not updated frequently. There were some issues about maintenance and this will be addressed soon. (Not just this particular incident) It has nothing to do with the accuracy of the application.
January 19th, 2009 at 12:35 pm
හොඳ පැහැදිලි කිරීමක්. Dialog එක මාව මොනතරම් හොඳට ගොනාට අන්දලද කියල හොඳටම පැහැදිලි වුනා. බොහොම ස්තුතියි.
January 19th, 2009 at 1:04 pm
AIRTEL gena obe adahasa mokadda?
January 19th, 2009 at 1:50 pm
@Kapila,
පොඩ්ඩක් මේක බලන්න, මම Airetel ගැන මෙතන කතාකරලා තියනවා
http://sinhala.kalingasblog.com/2008/09/16/dialog-unlimited-mobile-broadband-hsdpa-vs-mobitel-m3-borodband/#comment-1759
January 19th, 2009 at 1:54 pm
@Chanuka Wattegama
for me, if any thing is failing, as a user its a fault with the application.
i think its best to have the application in 100% working order before we can comment much on the matter.
January 19th, 2009 at 6:17 pm
@Kalinga,
really good, timely needed this kind articles for our peoples.
@Kapila
Airtell ගැන නම් වැඩිොත්වෙන්න එපා. මාගේ තාර්යාලයේ මිතුරකු කොල්ලුපිටියේ AirTell කාර්යාලයේදී UK සර්වරයක වේගය බලා තිබෙනව. 500kb/s වගේ අගයක් තමා ලැබිල තියෙන්නෙ. මම සිතන්නෙ එයත් ඩයලොග් වගේම වේවි. තව ටික දවසක් ඉවසන්න භාවිතා කරන අය ගැටළු කියාවි.
January 19th, 2009 at 6:48 pm
@ KALINGA
THANK YOU FOR YOUR DISCRIPTION. BUT ITS NOT CLEAR HOW MOBITEL GIVES BETTER SPEED? FROM YOUR COMMENT 12 I ASSUME THAT YOU ALSO GET NEAR PROMISED SPEED. I DONT THINK ITS BECAUSE OF LOW NUMBER OF USERS AS MOBITEL SMART CUSTOMERS ALSO GIVEN 1MB SPEED. ARE THEY HAVING GOOD NETWORK INFRASTRUCTURE WITH LOT OF HSPA TOWERS?
January 19th, 2009 at 8:55 pm
Mobitel GPRS 115Kbps is better than Dialog HSDPA 7.2Mbps
January 19th, 2009 at 9:22 pm
@sanjan
first of all some friendly advice, when you type in all CAPS it sound as your shouting and it considered to be rude. so don’t do that.
all i was saying when we tested it, but i don’t say that every one will get the speed i got when i was testing Mobitel, if you read my post, you can understand this is NOT possible in real world with HSDPA.
what you can accept from a good HSDPA providers is around 1-1.5mbps speed on a continues base.
from mobitel i got far better speed then Dialog, all i can say about mobitel is, if you have an issue, if you some how get true the customer service and log an issue, the HSDPA engineering team will work hard to fix it, but with Dialog they will just ignore it. so your better off with some provider what support you well.
so i will recommend Mobitel HSDPA over Dialog HSDPA at any time.
January 19th, 2009 at 10:13 pm
@ kalinga
sorry, its not intentional. just caps lock was on at that time.
January 19th, 2009 at 10:18 pm
@sanjan
no need to say sorry
January 19th, 2009 at 10:47 pm
ඇත්තටම ඉතා වටිනා ලිපියක්. මට හිතා ගන්න බැරුවයි හිටියේ මේ Dialog අය කියන 7.2Mbps වේගය නොලැබෙන්නේ ඇයි කියලා, 7.2Mbps කෙසේ වෙතත් අඩුම ගානේ 1Mbps වත් ලැබෙනවානම්, ඒත් එහෙම වෙන්නෙත් හරිම කලාතුරකින්. බලද්දි මේ අය කරන්නෙ මහා බොරුවක්නේ. පරිභෝගිකයින් ලෙස අපට මේ සඳහා කල හැකි දෙයක් තියනවද?
January 20th, 2009 at 7:32 am
something was wrong with M3 early today morning. around 4am to 6am (could be since much earlier), speed was normal initially but after a minute or two it goes down and pages just don’t load,so had to disconnect and reconnect continuously to load my web pages,must be they at Mobitel were doing some maintenance stuff,
January 20th, 2009 at 12:35 pm
@ kalinga
last night (arount 8 to 10) my smart connection was really fast compared to other days. did you also experienced it?
January 20th, 2009 at 12:52 pm
@mah
ah, well didn’t really do much downloading yesterday, was doing some work. but did notice around 11pm that the connection as bit slow not fast tho
January 20th, 2009 at 6:46 pm
I went to Colombo last week and one of my friends there bought Airtel 1449/= package, and I downloaded a song, Believe it or not, It downloaded around 140 to 180KB/s, So, I did a speedtest, For Male server it showed 560kbps and for Mumbai 1125kbps! But, unfortunately I could not copy the result link. But, in the speedtest.net result ISP is blank.
January 20th, 2009 at 7:04 pm
@Rishoban
ah, yeah i know, i tested one as well, at there demo place, its not hitting more then 512kbps…. i think my predictions are correct, its the same as Dialog, but bit better
like i told way back, Airtel don’t have a good international bandwidth, they have long long way to go.
January 20th, 2009 at 9:06 pm
@ rishoban
did you hear anything about new mobitel tariffs?
i heard that they are going to give unlimited package, its reliable bot not 100% sure.
January 20th, 2009 at 9:10 pm
@sanjan
don’t think Mobitel will go unlimited but from what i know they might reduce the price, but not unlimited.
January 20th, 2009 at 10:05 pm
First of all I like to thanck you for sharing your knowladge with all the net users…
Thanx 
I’m really interested in this hsdpa technology…
And I’m Using dialog HSDPA
Normally one cell tower is designed to give services to about 100 users(Am I correct?)
So when engineers design these architectures,
Normally they optimize resources and equipments.
Why then Low speed- cost effective HSDPA modems are not available in market?
Can you provide me some links to get more details about hsdpa network architecture and devices?
January 20th, 2009 at 10:22 pm
@Sannaddha
are you taking about active voice or active HSDPA users ?
if HSDPA,
Any version of HSDPA can transmit tower to device up to 15 simultaneous users during a 2ms time frame and during the next 2ms time frame, HSDPA can do the the same set of up to 15 simultaneous users, a different set of up to 15, or a combination of up to 15 from the two frames so on and so forth.
take HSDPA 3.6mbps for example. It has maximum downlink throughput of 3.6 Mbps per 5 MHz downlink carrier channel per cell tower sector. (one tower can have more then one sector.)
To achieve that max downlink throughput, HSDPA 3.6 must use 16QAM modulation, which requires optimal signal conditions (in our terms, full signal
) for any one active user up to all 15 active users on that carrier channel but this is an unlikely scenario.
http://en.wikipedia.org/wiki/High-Speed_Downlink_Packet_Access
as far as i know RNP (Radio Network Planing) is done in house, but most installation and configuration are done by the contractor, in SL mostly its Huawei.
well, that you have to ask from manufactures
why its not cheap.
January 20th, 2009 at 11:14 pm
Thanx!
I went through Wiki page and official Hsdpa site…
Bt they only have general infor!
most of the time I get a good speed (abt 700kbps) from my hsdpa, and I can clearly observe that my downlink speed is 1000kbps at times with less traffic(and it’s a very steady rate)!
i also can observe some switching patterns of dowload speeds(Ex. after about 5.00pm DL speed quickly rices to about 720kbps, at abt 7.30 it become unsteady, after about 9.30pm speed rises to 1000kbps at onece and remain const.) is that means Dialog control the traffic by cutting down DL speed?
January 20th, 2009 at 11:17 pm
@Sannaddha
if your getting that kind a speed, your really lucky, 99% of Dialog users i know, dont get more then 512kbps speed with HSDPA,
where do you live ?
January 20th, 2009 at 11:37 pm
Yea!
I’m really lucky!
Although this speed is enough for me, I still fights with them on facebook official site!
I’m In Manikhinna(In kandy)
It’s not a very populated area!I think I’m the only person who get HSPA service from Manikhinna tower!
January 20th, 2009 at 11:40 pm
@Sannaddha
bingo… your the only one in your area… now i just did a test with Dialog and its around 380kbps from dialog.lk
January 20th, 2009 at 11:51 pm
Mmm Thanx!
Aftr posting that my DL speed quickly reduced to 344kbps.(exactly!)
I think I exceeded 5Gb limit
January 20th, 2009 at 11:57 pm
@ Sannaddha
when someone reach 5GB the actual speed will be around 5KBps. not 344kbps.
January 21st, 2009 at 6:23 am
Have you ever heard a place called Spring Valley, Well, I am the only one who uses that tower! I even got the modem by ordering it privately, the dialog service center in my area don’t know, what is HSDPA broadband? Ha..Ha.. Anyway, I get around 800kbps, But, I am not happy with it.
January 21st, 2009 at 8:32 am
@Rishoban
Spring Valley is near baddula right ?
Guys, so guess if you have a Dialog HSDPA, go to Spring Valley or Manikhinna
and you can get 800kbps ++ 
January 21st, 2009 at 9:56 am
@ kalinga
then sannaddha and rishoban will also get 200 kbps
January 21st, 2009 at 5:11 pm
hi guys thanks for shering your knowledge
i dont know much about this hsdpa speed ?
how do you find it in your lap
{i am having mobitel m3 }
ignarant
January 21st, 2009 at 7:21 pm
වටිනා ලිපියක්, මේ වගේ පැහැදිලි කිරීමක් දැක්කමයි.බොහොම තෑන්ක් යූ, මේ වාගේ ක්රියා පාලනය කරන්න දැන් කාලෙ හරි, ඒත් මොනව කරන්නද?
===================================================
අනේ මට නම් 7.2 mpbs ඕනෙ නෑ, යන්තම් 512 kbps තිබ්බොත් හොඳටම ඇති, මම සන්ටෙල් ඉබිගමන් සේවයේ (CDMA dialup)නෙව, ඔය පින්වතෙක් ට මොකක් හරි කොනෙක්ෂන් එකක් එපා නම් මේ අපිට විසි කරන්න. (අපේ කැලෑව දිහා කවුරුත් බලන්නෙ නෑ නෙව)
January 22nd, 2009 at 7:42 am
hi, everyone.
i just changed my m3 890 package to m3 Zoom 2490
will it deliver the download speed they promised? i check it with the speedtest it dosent go more then 1000kbps !
anyway iam still happy with the download limit and the m3 speed!
kalinga thank you very much for doing this kind of stuff. it realyy helps !keep up the gud work!
January 22nd, 2009 at 8:20 am
@mah
haha… they are lucky if they get 200kbps
@ignarant
_http://speedtest.net/ go to this site and you can use it to get some idea about the speeds you get, just dont click one server, test few, USA/UK/JP/SG and check the average speed you get.
@ගයාන් කල්හාර
CDMA දුක මාත් හොදට දැන්න කෙනෙක්, ගන්න ලාබ 3G පොන් එකක, අරගෙන M3 Prepaid එකක් දාගෙන ඉන්ටර්නෙට් යන්න ඒක ගොඩක් ලාබ වෙන්න පුලුවන්.
@romesh
yes, even in the post what I’m saying to say is, in real world you can’t really give the advertised speed on HSDPA, on a good network, you can get average speed of 1-1.5mbps that’s about it, unless they will update inter connectivity, international bandwidth and network to HSPA+
January 22nd, 2009 at 9:51 am
@romesh
when you change from zoom890 to zoom2490 is the change in speed instant? i remember someone telling that it takes 24 hours for the change to take effect. does anyone know anything about this?
January 22nd, 2009 at 9:56 am
@Rasike
this depend on how long they take to upgrade the package, when i did this, it only took few hours, they maybe saying it takes 24hours just to have some time for there paper work.
January 22nd, 2009 at 4:34 pm
යන්තං ඇති CDMA Dialup use කරපු කෙනෙක් දැක්ක, අනේ ගාන නම් කිසිම අවුලක් නෑ, මොකද රුපියල් 200 කින් 24×7 මාස 3ක් යන්ට පුලුවන්, හික්ස්, බොරු නෙමෙයි ඕනෙ නම් ට්රයි කරල බලන්ට, අනිත් ඩයල් අප් වලට වඩා නම් සන්ටෙල් හොඳයි, ට්රැෆික් එක ගොඩක් අඩුයි, ඒත් ඉතින් දන්නවනේ…
3G මට හීනයක්, ඒකටවත් හරියට සිග්නල් නෑ, ක්රමයක් තියනවද? මම කොහෙද දැක්ක සිග්නල් බූස්ටර් එකක් ගූගල් කරල නම් හරි විසඳුමක් ලැබුනෙ නෑ, ඒක ඇත්තද?
January 22nd, 2009 at 4:38 pm
@ගයාන් කල්හාර
මේකයි වැඩේ, මම මුලින් මොබිටෙල් ගත්තේ, සිංනල් එකක් වත් පොන් එකේ ආවේ නෑ 3G, නමුත් Huawei E220 එකට එක සිග්නල් එකක ආවා, පසුව මම ඔය සැටලයිට් Ku dish එකක LNB එක වෙනුවට Huawei E220 එක හයි කරලා, ෆුල් සිග්නල් ගත්තා, එහම තමයි ගොඩක් කල් බාවිතා කලේ.
ඕනෙනම් කාගෙ හරි එකක් ඉල්ලගෙන ඇවිත් උත්සාහයක් දාල බලන්න.
January 22nd, 2009 at 10:29 pm
ඔව් ඔව් කරන්නම දෙයක් නැති එකේ ඒකවත් කරල බලන්ට ඕනෙ, DISH එකෙන් 3G් සිග්නල් තියනවද?? :O .. ම්ම් ට්රයි ඇන්ඩ් ට්රයි වන්ඩේ යූ කැන් ඩයි කියල පුරාණ තාපසයො කියල තියෙන්නෙ කට කහනවට නෙමෙයි නෙ, කරල බලමු..
බොහෝම තැන්ක්යූ කියා දුන්නාට
January 23rd, 2009 at 6:50 pm
Dialog no more cheats its customers! Ha..Ha..
check this; http://www.dialog.lk/en/mobile/technology/3g/unlimited_mobile_broadband.html
They have changed their speed from 7.2mbps to 1 mbps!
January 23rd, 2009 at 7:13 pm
@Rishoban
Ah, funny, now Dialog can say even if its 300kbps, we are giving 30% of the advertised speed, but I’m glad finally dialog did the right thing
January 23rd, 2009 at 10:28 pm
hey kalinga aiye i need your opinion on this. im trying to download a video clip from _elakiri.com the downloading speed is insane. but the speed test results are normal. do u think something is wrong with _elakiri.com server or might mobitel be purposely decreasing speed when downloading large files, i tried to cancel download and start again many times to see if the speed will catch up, but it didn’t work, im still downloading the clip even as im typing this.
http://www.geocities.com/rasgar99/1.html
http://www.geocities.com/rasgar99/2.html
January 23rd, 2009 at 10:37 pm
@Rasike
those sites are on cheap, low quality bandwidth servers and most of the time they are overloaded, so don’t test speeds with that kind a sites, always use a stables fast site.
January 24th, 2009 at 6:54 am
Now, dialog has reduced the speed, (I mean only in their site!) So, they must remove their FUP limit now! @Kalinga Aiyya, what do you think, will they remove it or not?
January 24th, 2009 at 11:12 am
What a great thread !!! Really appreciate yo work.. I’m dialog broadband user and now I’m fed up with it’s low speed… I wanna change to a M3 data plan using E220 modem I got frm dialog. (coz it’s cheap than others) But worried about the contract I signed for 6 months.. I dnt wanna be blacklisted in Dialog PLC… Any advices comments greatly appreciated….
January 24th, 2009 at 9:33 pm
LoL.
Dialog accepted the bitter truth after we fought with them about this speed issue in their Facebook group
http://www.facebook.com/board.php?uid=43928276150
Rather than improving their infrastructure, they reduced their “Advertised speed”, Which is not acceptable to me…
All the present dialog HSDPA users must join together and needs to fight against them!!!
January 25th, 2009 at 5:22 pm
any idea when or if Mobitel will update their m3 plans anyone? now i have used 4Gb, thats 2Gb more than my allowed amount. starting to hate it. hey y hasn’t anyone posted any speedtest results for a airtel connection? if anyone is using pls do post some.
January 25th, 2009 at 8:15 pm
@Rasike
check the M3 site, you can get 7GB for Rs.2490, as far as i know, M3 will NOT give an Unlimited connection, also i like to point out, HSDPA is NOT a replacement for home broadband, this is Mobile Internet and it has it limitations.
Airtel, speeds are around 512kbps, read the comment 25, 35
January 26th, 2009 at 4:12 pm
some airtel speedtests on Mumbai server;
http://www.speedtest.net/result/393814149.png
http://www.speedtest.net/result/397370979.png
January 26th, 2009 at 7:55 pm
@ rishoban
it seems to be good. can you bublish speedtests to male server. my mobitel smart 1mb connection also show higher speeds to mumbai than male. (eg- like 850 vs 1100)
January 27th, 2009 at 9:56 am
@mah
I don’t use Airtel (no coverage), I got these speedtest results from my friend. I asked him to test with Male;
According to him he gets around 400kbps – 600kbps download & 50-200kbps upload speed for Male server.
January 27th, 2009 at 11:00 am
guys… when doing speed tests, do it to places like USA (NY/NY) UK, JP etc coz most web sites we vistis located in the USA/EU so male is not the right place to do speed test
January 27th, 2009 at 4:15 pm
@ rishoban
so it s slower than mobitel smart even now with very much less users. if it goes down further it will be useless like dialog. but if they give atleast 400kb stablly worth buying it since its unlimited! but better not buy airtel locked modem i think!!
@kalinga
its true. we experience the speed to us sites most of the time. i just asked for comparison with mobitel since i did lot of speed tests to male server. it seems that airtel will be much slower than mobitel 1mb as you said.
January 28th, 2009 at 2:11 pm
can someone send me the APN setting we have to use when logging on to Dialog 3g, i want to test and see the speed i get when using a HSDPA Phone, in the settings i have now the APN is ppwap, so even though full 3g signal is there the phone connects in GPRS speeds, example in mobitel there are 2 APN’s mobitel3g and mobitelgprs
January 28th, 2009 at 2:35 pm
@Rasike
normally its “www.dialogsl.com” for postpaid, and not sure if Prepaid has HSDPA, maybe you can check if you have 3G enabled on the connection.
January 29th, 2009 at 9:05 am
This is to small correction on comment 73.There is no APN called “mobitelgprs” for mobitel. “mobitel3g” APN can be used any coverage area for GPRS/HSPA.
January 29th, 2009 at 11:08 pm
@duleep
what about “isp” and “wap” APN’s (i remember them from back in the day) both are there ?
January 30th, 2009 at 10:37 am
@Kalinga,
Still ISP and WAP APN can be used.But Now all users by default get “mobitel3g” APN.
January 31st, 2009 at 7:48 am
i will definitely miss the M3 speeds if i ever change to Airtel, and i think the problem with the male server is still there bcos it says 1050kb/sec while it should be max 1024kb/sec
February 4th, 2009 at 8:52 am
This time did anyone crossed Dialog HSPA FUP limit? I got a speed of 120KB/s within the 5GB, and now I have used 6.9GB, still I get the same speed? What is this? Did dialog removed their FUP?
February 4th, 2009 at 11:48 am
No, lol. Dialog is pretty messed up in their calculations. I mean we are using the download meter on mobile partner right? that’s the only way to know how much data i have used. In firs month, my FUP limit exceeded but Mobile Partner showed only 3.5GB of usage(Or something close). So I called customer care (Do u know the customer care number for HSPA? lol) and they said that Mobile Partner software that comes with E220 is not recognized as an accurate measure by Dialog. lolz. Then I asked if they provide us users with a way of monitoring how much we’ve used up. They said they are working on a system but it isn’t available publicly yet. This was some 3 months back. Frankly I didn’t bother trying to find out if they made such a tool available. I think it is unlikely – correct me if I am wrong. But the thing is they are restricting usage as if we’ve hit the 5GB limit. But we have no clue. They don’t show their monitoring stats so we can perhaps make a comparison. And there’s nothing we can do about it. lols. Such a consumer friendly company!
February 4th, 2009 at 1:24 pm
No, I don’t use Mobile partner to measure data usage, I use a google desktop gadget instead. It shows now 7.2GB, still I get 100 – 120KB, Now I am downloading a 3.7GB game (75% finished when writing this), It is a jackpot indeed. I’ll download as many as now without worrying!! Now get 110KB/s! after using 7.7GB.
February 6th, 2009 at 7:51 am
good to see some improvement about dialog for a change
hope it will last
February 6th, 2009 at 9:09 am
Kalinga aiiya,I am not a m3 broadband user.but sometimes use Mobitel daily delight But in Gprs speed.But its ok with me.But i am fond of studying these Hspa technology.I am studying about m3 from the beginning and I saw in there(Mobitel)towers they use Someking of big Equipments for 3g ( i guess theses are HSPA transceivers) than Dialog.Is this a result of higher speeds of mobitel than Dialog?( also Airtel uses same HSPA equipments like Mobitel.)Could you please explain about that.And you have mentioned your blog that HSPA speed depends on the link between Base station and tower.Mobitel is using SlT backbone and I saw in many Slt exchanges they have transmitting dishes against Mobitel tower( i saw this in HOMAGAMA and MAHARAGAMA and many places)Are they sharing the data traffic to SLT wire line network and balance he load? Is this the secret high speed in their network?
February 6th, 2009 at 11:22 am
Kalinga aiiya,I am using 3g daily delight from n70 for the computer but i haven’t 3g.But i tested it from speedtest.net i cant believe the result.but i can experience less speed.please explain!
Thanks!
February 6th, 2009 at 11:22 am
Kalinga aiiya,I am using 3g daily delight from n70 for the computer but i haven’t 3g.But i tested it from speedtest.net i cant believe the result.but i can experience less speed.please explain!
Thanks!
http://www.speedtest.net/result/404084564.png
February 9th, 2009 at 1:02 am
airtel speed tests
i m getting download speed of 50-60 KB/s with airtel. (at mid night)
mobitel smart 1mb is far better and i always get 125-140Kb/s.
but airtel is totally unlimited and so far its better than ADSL. more importantly its stable.
February 9th, 2009 at 1:32 am
best speeds obtained to mumbai server..
http://www.speedtest.net/result/407055018.png
February 9th, 2009 at 2:08 am
@ kalinga
mobitel smart 1mb speedtests at the same time( mid night)
http://www.speedtest.net/result/407073418.png
http://www.speedtest.net/result/407064884.png
http://www.speedtest.net/result/407065711.png
though the speeds are not much different, download rate is more than double in mobitel. whats the reason?
February 11th, 2009 at 12:12 am
kalinga aiye…
mama dialog hsdpa connection 1k gatta.. mama rawatuna speed 1 godak adui. mama mobitel hsdpa connection 1k gannai yanne, eth mage Huwawei e220 modem 1 dialog 1n sim lock karala, mata aeka mobitel connection 1 ekka use karana widiyak kiyanna, mata aluth modem ganna salli naa.. mage yaluwo 15k witara innawa mae prashneta hira wela.. api dialoglage campus package aran rawatuna aya, widiyak tiyenawa nam kiyanna,
mae wage blogs godak wadagath.. godak watinawaa oyalage effort 1ta godaak thanks..
February 11th, 2009 at 12:16 am
@kelum dissanayake
මොඩම් එක අන්ලොක් කරගන්න පුලුවන්, හැබැයි ගානක් ගෙවන්න වෙනවා රු.2100 වගේ වියදම් කරන්න වෙනවා, මොකද දැන් තියෙන්නේ hardware look එකක් නිසා, ඉසරනම් තිබුනේ සොෆ්ට්වෙයර් ලොක් එකක්, මම දන්න කීප දෙනෙකු කරා, කිසි ගැටලුවක් උනේ නෑ.
February 11th, 2009 at 12:30 am
@kalinga aiya
thanks.
puluwan nan unlock karanna puluwan tanakuth ewanna. loku udauwak.
February 11th, 2009 at 11:39 am
E220 eke software unlock karana hati nam dannawa… Eka weda karanawa nam man eke tutorial eka dannam.. Eth hardware lock ekak thiyenawa kiyala adai man ahuwe… Kalinga aiye kohomada software da hardware lock ekakda kiyala dena ganne ?
February 11th, 2009 at 3:49 pm
@udara
mage modem 1 parana 1kda dan naa..
itin tutorial 1 daanako. apita try
karala balanna puluwanne…
February 11th, 2009 at 3:55 pm
[URL=http://www.speedtest.net][IMG]http://www.speedtest.net/result/408763138.png[/IMG][/URL]
mage dialog speed 1, ane mama rawatunaane.
February 11th, 2009 at 4:16 pm
Dialog E220 මොඩම්, ඔකොම වගේ hardware looked.
Unlooking Site for E220
_http://dc-unlocker.com/
February 11th, 2009 at 5:04 pm
Now only I heard about something like “Hardware lock”! I expecting Airtel, though i have Airtel 3G or not, I going to throw my disconnection form to dialog telekom! I don’t care about the speed, All I want is getting rid of this Dialog shit! I paid 5th bill today, only one remains!! After that, no more dialog!
February 11th, 2009 at 9:55 pm
kelum: atenabled=true
System: Connection established.
System: Initiating Call, Please Wait.
System: Connecting… An agent will be with you shortly.
System: Welcome to Dialog Telekom online customer support
Chinthaka: Ayubowan! This is Chinthaka, how may I assist you today?
kelum: i have some issues with dialog broadband
Chinthaka: Please proceed with your query.
kelum: dialog hspda 2990 pkg 1e band width 1 keeyak denawada?
Chinthaka: Please be good enough to elaborate your query as it is unclear.
kelum: what is the hspa Monthly rental of Rs. 2,990/ pkg shared bandwidth ?
kelum: clear…..
Chinthaka: The 1Mb speed would be shared amongst the pc’s however priority would be given to the shared PC.
kelum: but previously it’s bandwidth is 7.2Mbps .. as dialog advertise it in telecommercials
kelum: am I correct?
Chinthaka: Correct.
Chinthaka: However the guaranteed speed is 1Mbps it would reach a maximum of 7Mbps.
kelum: boru kiyanna epaaa. dialog 1e idan site 1 wat balanne nadda? what is this customer care? go to this link and see ur selfhttp://www.dialog.lk/en/mobile/technology/3g/unlimited_mobile_broadband.html
Chinthaka: Correct. It MAY go up to 7Mbps.
kelum: it is not said in that speed table or site man
kelum: how you say that
kelum: can you gurantee
kelum: that is true
Chinthaka: 1Mbps is what is mentioned and if within the coverage area furthermore if the correct equipment is used you connect at the given speed.
Chinthaka: However at certain locations you still can connect at 7Mbps as this is not mentioned in the link it was not guaranteed.
kelum: I think you went to the bad class or are you absent with training sessions?* speed will be contingent of device compatibility. is within 0-1Mbps not higher as describe in the site.
Chinthaka: It depends on the equipment used as even I was able to connect at 7Mbps a few days back. However please be good enough to refer the previous comment where at no point was 7Mbps promoted it was just commented upon request.
Chinthaka: Is there anything else that I could help you with?
kelum: why not
kelum: is that hsdpa huwawei e220 modem that I purchase from dialog belong to the customer or ISP
Chinthaka: Due to technical reasoning it has been limited.
Chinthaka: The modem would be owned by the customer.
kelum: then how dialog can sim lock that?
/
Chinthaka: The e220 Modem is normally priced at over Rs 16000/- however for the promotion the price down graded.
kelum: how can u connect that with this issue?
Chinthaka: As such Dialog Telekom PLC. Would only achieve a long term if their service(s) are used the modems would have to be network locked.
Chinthaka: Is there anything else you wish to clarify?
kelum: really.. It is not included with our agreement.. I think dialog forget that…
kelum: Is that true dialog goes with financial difficulties and it loses customers?
Chinthaka: If it was true Dialog would no longer be No. 1
kelum: really you better see that with your own eyes..how shame pretending as No1…http://www.dialog.lk/en/corporate/ir/dial/dialinfo.html#indexed
Chinthaka: The E220 modem is unit we have offered our valued customer(s) at almost Rs 10,000 /- less than the unit price and as such it is reasonable the unit been network locked.
kelum: who ask that for 10k
Chinthaka: Please be good enough to understand there is economic down turn where Dialog is still thriving. The share price is determined by the demand if the consumer does not have the resources he is unable to purchase not only Dialog but any other share.
Chinthaka: However as this is in regard to your Broadband connection is it all right if I asisst you in regard to the same.
kelum: oh, I think CHINTHAKA you better learn real ccare by visiting HP ccare..
Chinthaka: Is there anything else you wish to clarify?
kelum: http://www.hp2.com
kelum: why not
kelum: I’m going to place a complain with you and Dialog with trc.. be ready with good lawyers
Chinthaka: It was a pleasure assisting you.
Chinthaka: Thank you have a pleasant evening
kelum: I think I have right to know your Dialog ID
System: Call Disconnected.
This is the chat between me & dialog ccare. give your comments.
February 12th, 2009 at 8:41 am
@Rishoban,
Throwing away of Dialog connection looks like a wise decision. But i can’t understand why do you move to ‘Airtel’. eka nikan ara kathawak thiyenne, ‘inguru deela miris gaththa wage’ ekko ‘kabalen lipata wetuna wage’ kiyala.
i’m curious about Airtel’s quality & speed. Is their anybody who used Airtel ? If so can you post some speed test results ?
February 12th, 2009 at 5:56 pm
@lakmal
see above comments by me
February 13th, 2009 at 7:01 am
@ kelum!
I have same kind of experiance with dialog!
I’m goin to get few voice recodings and then tackle with them…
So lets fight together!
And about your modem…
E220 can be unlocked for free…
If you’re in kandy, I,ll do it for you,
Else i’ll send you instructions.
via mail
place a positive responce
February 13th, 2009 at 11:09 am
@sannaddha
Thanks machan…
Yes, we’ll fight together to tackle Dialog Suckers. They think they are the King while
others think customer is the king.
I’m in Malabe.
So, if you can send me the ways to unlock this
E220.
email:- hekelum@gmail.com
@kalinga
Can you open a new blog regarding to this dialog
matter.
thanks
February 13th, 2009 at 12:09 pm
අවංකවම කිව්වොත් D..ට වඩා M..හරි නිරවුල්,වේගවත් එමෙන්ම (වෙනත්විකල්පයක් නැත්නම්)සාධාරණයි.පිටතින් ගන්න(10.000-12.000 අතර) E220 HUAWEI MODEM එකක්,එයට D..M..A..ඕනෑම SIM එකක්දාන්න පුළුවන් විතරක් නොවේ යාන්තම් තනි සිග්නල් එකකින් වුවත් 1MB ආසන්නයි.(සිග්නල් ඇදී එනවා)මේ මගේත් දැනට එහෙමයි.මමත් ADSL(ලැබෙමින් පවතී)හැර වෙනත් සියළු මාග්ර් ඇතිතරම් අත්දැක තිබෙනවා.(අනේ පව් මගේ සල්ලි 80.000ක් විතර)
SAMAN/HOMAGAMA
February 13th, 2009 at 1:05 pm
නැවත ලියමි, කොල්ලනේ..ලංකාවෙ කිසිදෙයක් කියන පෙන්නන තරම් සැබෑවට ලැබෙන්නේ නෑ.1 HSDPAසදහා PHONE වලටවඩා (පිටතින් ගන්නාUNLOCKED MODEM) සුදුසුයි,වේගවත්.(FOR DATA SIM)
2 CDMA කාගෙත්+ කොතනත්(කළාතුරකින් මහ රෑට හැර) ඉතාම මන්දගාමියි.කැමති ඡාතියකින් නොමිලේ දෙමි…!
3 මේ අසීමිත 2MB -7MB වේගයක් ඇත්තටම? හැමෝටම?අවශ්යද?
February 14th, 2009 at 2:17 pm
@all
here’s how to unlock the E220 for Free
http://gayantha.myblog.lk/2009/02/13/huawei-e220-unlock-කරමුද/
February 14th, 2009 at 7:28 pm
Thanks Kalinga…
I have unlocked my modem sucseesfuly…
February 20th, 2009 at 9:14 am
Pre-Paid Mobile Broadband from Dialog GSM
http://www.dialog.lk/en/mobile/mobilebb/prepaidbb/ppmobilebb.html
February 23rd, 2009 at 1:54 pm
Dialog’s prepaid broadband thing has come as result of Mobitel 3G Daily Delight which was introduced in last year. But Dialog has made it more unattractive to customers compared to Mobitel’s 3G delight. As usual dialog introduced this package with their ‘UNLIMITED’ tag line which means definitely it is another ‘Gunduwak’ to mislead customers. Let’s see the package.
Interesting thing to count number of limitations in this ‘UNLIMITED’ broadband package. I found out some:
1. Dialog FUP applies. Means the data is limited to 5GB with advertised speed.
2. Speed is limited after FUP.
3. Specially, the ‘Surfing time’ is limited (very low as 30minutes). but they say unlimited surfing.
4. ‘Validity period’ also limited.
Whatelse can you expect from this shitty service provider. This is ‘TYPICAL’ Dialog’s way of communication.
Don’t get trapped for their communication. They have lost the preliminary feature of a service provider, which is ‘Trust’.
Yet Another Unsuccessful Copycat attempt by Dialog.
February 23rd, 2009 at 6:36 pm
want to add another point to the above post, its quite hard to configure the phone or modem to access internet, we have to call dialog and get the settings (cannot push settings to phone or modem), cannot use java applications when using phone to access internet, which is a very ugly thing if ur using Opera Mini to use internet like i do sometimes so have to use the phones internal browser,also have to make a unique username and pass as well by using a dialog web address, it took me about 1 hour to get the settings configured but it didnt work at the end,,,,,,,,
February 25th, 2009 at 9:33 pm
Most of you may already know this but, SLT have reduced ADSL charges and introduced new packages. Details available at http://www.slt.lk/data/forhome/105adsl_charges.htm
I requested a package upgrade from the 512k unlimited package to the 1m unlimited yesterday, and they said that it may take upto 3 days for the change to be done, however, to my surprise, when I came home yesterday, the upgrade had already been done, unfortunately, this package change does not seem to be a straightforward exercise. First of all, it involves changing your ADSL username from username@sltadsl.lk to username@sltbbxcite.lk. The CSR at the teleshop never told me about this change, and I only found out when my router was not connecting in the evening. After contacting the ADSL hotline, the guy at the call center promptly told me that I need to change my username, so assuming this to be my issue I thanked him and hung up. However, after changing the username, I still couldn’t connect, the router would show that ADSL carrier is up and the downstream datarate to be 1021 kbps and upstream datarate as 252 kbps, but it would stop with a “Timeout waiting for PADO packets” error. So I callled customer care again, the guy at the other end said that the matter needs to attended by the technical team and that someone from the technical team would contact me within an hour. Although it was around 6.45pm then, I was surprised to get a call from a technical chap from SLT within 15 mins, but after being on the line with him for about 15-20 mins verifying all settings and rebooting the router, I still could not connect. At this point the technical guy told me that the issue needs to be checked at the exchange and they will send someone there today to fix it. Although I never got a call today to confirm if the issue was fixed, ADSL is now working fine. It also appears that SLT have a new set of dynamic ip addresses starting from 112.135.x.x for the new packages, Speedtest.net is unable to determine who my ISP is and when I sign out of yahoo mail, it automatically redirects to Yahoo Australia homepage!!
February 26th, 2009 at 12:34 am
Kalinga,
I was thinking of buying the dialog 5490 offer and immediately unlocking the E220 to use it with a M3 package.
in that case what is the minimum I would have to pay upfront just to get the device and disappear?
Is it 5490(for Device)+ 2990*2(two months rental!)+1000 (connection fee) +3000 (Deposit)+Taxes.
Does usual unlocking procedure work with current Dialog E220s?
Thanks.
February 26th, 2009 at 11:46 am
@SD
hey I unlocked my E220 and it’s working fine.
you can legally escape from the agreement as I done.
Dialog have some issues with rapidshare downloading,.. I used it a key to escape
from there agreement. So I claim using
customer dissatisfaction.
They immediately disconnect my connection and refund my deposit, they didn’t ask me the modem
caz I paid it. 5490/=
try that out…
any problem with unlocking contact me
February 26th, 2009 at 11:01 pm
Kelum,
Interesting! So did they return you all except 5490? What about the advance rentals & connection fee?
would like to know the details of the Rapidshare strategy.Please let me know how I can contact you off line, if you don’t mind.
Thanks,
SD
February 26th, 2009 at 11:13 pm
@SD
Hey u can contact me using my mail, hekelum@gmail.com
happy to help u all
dialog is @ a loss of Rs. 388 Mn
apen gasaaakapu widiyata ohoma wela madi,
u remember the time they sell 1min incoming free sim for 2500Rs.
February 27th, 2009 at 5:38 am
seems Mobitel also has reduced price of some of their modems, thats good, details are in their website,,,
February 27th, 2009 at 7:03 am
how is the speed of Airtel doing now, any improvements or gone bad?
February 27th, 2009 at 11:27 am
I am Using Airtel 3GB package with E220 modem.
Area .. Athurugiriya
Last Result Using site.. http://www.ip-adress.com/speedtest/:
Download Speed: 513 kbps (64.1 KB/sec transfer rate)
Upload Speed: 42 kbps (5.3 KB/sec transfer rate)
Fri Feb 27 2009 11:24:49 GMT+0600 (Sri Lanka Standard Time)
February 27th, 2009 at 11:30 am
http://www.speedtest.net/result/419239742.png
February 27th, 2009 at 6:06 pm
thanks guys, i will have to change my m3 plan, bcos 2Gb is just not enough, will have to move to either Airtel Unlimited or m3 7Gb plan, it seems m3 is a Quality for money while Airtel is Quantity for money,,, but all in all at the end what will count is the speed rite, everything from how fast the facebook page loads,the youtube movie streams and how fast the file gets downloaded, most of us hate that ‘waiting’ time and will probably be willing to give the right price to make it go faster,,,
March 1st, 2009 at 12:20 am
@ rasika
airtel is not good enough to fulfil your requirements. i have 1gb plan now (changed unlimited to 1gb) its difficult to watch you tube videos. it buffers every 2 second…. speed is between 150 & 350kb. stable so better than dialog.
i ll publish sone speed tests tonight or tomorrow.
March 1st, 2009 at 12:31 am
airtel speed tests done 1 week back. now its even less. will do some and publish….
1.http://www.speedtest.net/result/414946880.png
2.http://www.speedtest.net/result/414977613.png
3.http://www.speedtest.net/result/414945641.png
4.http://www.speedtest.net/result/414980923.png
March 1st, 2009 at 11:15 pm
@ rasika
airtel is not good enough to fulfil your requirements. i have 1gb plan now (changed unlimited to 1gb) its difficult to watch you tube videos. it buffers every 2 second…. speed is between 150 & 350kb. stable so better than dialog.
i ll publish sone speed tests tonight or tomorrow..
March 8th, 2009 at 11:52 am
@Rasika,
I agree with you regarding the description of Airtel and Mobitel. But when comes to dialog they don’t have either quality(due to poor unstable speed) or quantity(due to FUP shit) for money! But they provide funny jokes for money:-))
March 8th, 2009 at 10:01 pm
airtel speed
http://www.speedtest.net/result/425475568.png
this is the best speed i got!!
usually its less than 200kb.
March 14th, 2009 at 5:55 pm
Mobitel, Huawei E160 modem eka unlock karanda system ekak kiyanda pls… (link or somthing pls, type karanda wena place ekak labune ne, sorry ok!)
March 30th, 2009 at 1:15 pm
Hey guys,
Im using a dialog MF 628 modem, Does any1 know how to unlock that?
thanx
March 30th, 2009 at 5:43 pm
i guess you must be talking about a ZTE modem right? i guessed so bcos it says “MF”, anyway i unlocked a ZTE MF 620 which was locked to TMN Portugal using the kulankendi server, its cost me 15 euros (about Rs.2300), you might be able to unlock the dialog one in the same way, but can only be sure after you try it, first download the kulankendi unlocking software and see if the MF 628 is supported. i still didn’t come across any other methods to hack and unlock ZTE modems like we do the Huwawei ones, guess it must be bcos ZTE has such a small market share not many ppl bother to write softwares to hack them.
, go to http://www.kulankendi.com and see ok.
April 1st, 2009 at 9:35 am
Hey,
I am currently living on outside the 3G coverage area,Is it possible to get at least 512 internet speed within GPRS coverage area through mobile broadband???
Is mobitel provide 1Mb speed for their daily package (we can buy it paying Rs 25/= or Rs50/= per day)? and within GPRS coverage also??
When i asked from there customer service ,One lady told They are giving 1Mb speed within GPRS coverage also Can we Belive it???
April 1st, 2009 at 9:37 am
@Asanka
on GPRS/EDGE max download speed you can get is around 64kbps, if ONLY GPRS its lower, say around 32~48kbps
April 1st, 2009 at 10:21 am
mmmm
Thank you very much for your reply
monawa karannada duka thama
April 29th, 2009 at 8:12 pm
Thanks for the all informations.
I have dialog mobile broadband campus package(Rs 1490) and now I completed 6 months. So I can shift to any other internet provider. I’m planing to shift Airtel unlimited one. Is it a good solution for me? Will Airtel give the same performance as Dialog?
May 4th, 2009 at 9:50 am
@Dayan
personally i cant say much about Airtel HSDPA since i haven’t used it as much, it can go from 200kbps-1.5mbps but all depend on time and where you are located, unlike Dialog Unlimited HSDPA, Airtel one is truly unlimited so there are no FUP etc.
May 4th, 2009 at 2:21 pm
@Kalinga
Thanks for the reply. I’ll check with someone’s Airtel Connection in my location before I buy it. Keep it up.
May 22nd, 2009 at 10:28 pm
@ Kalinga
Thanks for the guidance. I have a direct view of the Airtel tower and it is about 400m far away. I got a Airtel sim and I’m getting a speed of 50KB/s at day time and it reduces more at night.
By the way I’m getting more quality service than Dialog.
I did some speed test on speedtest.net and I got some amazing test results
http://www.speedtest.net/result/479334264.png
upload speed is much higher than the download speed
Is it a problem or just a HSDPA thing?
June 14th, 2009 at 7:06 am
NEVER buy airtel 300 and 600 limited data packages..for an additional 1mb they charge 5.12 rupees..that means a half a cent per second..so an additional 1gb usage will cost you more than rs5000…anyway when i looked at the telecommunication regulatory commission website it said the approved charges for airtel 300 and 600 data packages are 0.05 cents per an additional kb. http://www.trc.gov.lk/images/pdf/Airtel_tarrif.pdf .i went to the airtel store and asked about it they said that it should be a “printing mistake” in trc website and CS didnt allow me to talk to their superiors..when i called CS hotline they told me that i may have made a mistake bcoz they have been operating packages for 4 months without a problem. But this is serious since they are charging 10 times more than accepted trc rates for pathetic speeds….I tried to compare airtel with other operators…mobitel charges 5 rs. per additional 10MB …dialog – Rs1 for 1 Mb…so Airtel charges 10 times more than mobitel and 5 times more than dialog…I asked about this also and they replied that they don’t have rentals.they only have monthly commitments..so their charges cant b compared with the other operators…THIS IS WORSE THAN DIALOG.becoz they charge 10TIMES more than what has been approved… But What can we do? Please halp me…
June 14th, 2009 at 7:07 am
Sorry in the above 2nd line should be corrected as half a cent per KB
June 24th, 2009 at 10:16 pm
Hay good news for Dialog HSPA customers…
Dialog is going to update their Colombo base stations to 20Mbps ready… You will feel the deference within next couple of weeks…
June 28th, 2009 at 2:31 am
@ kalinga
writing after a long time…
want a help .
i m using mobitel HSPA connection and i connect through my HSPA phone. speed is 1 mb always and i get download speed of 120-135KB. OS of the laptop is vista. but you tube site is unusually slow. it buffers a lot.
then i checked you tube site with my ADSL and it also very slow. and i checked the site with airtel sim also and it seems ok.(airtel is slow in all the sites and no difference in you tube)
then i checked desktop which has XP for the same thing. and you tube works fine with both mobitel and ADSL.
can you please help me to solve this?
June 28th, 2009 at 11:30 am
@mah
there seem to be an issue with SLT/Mobitel users, the Youtube issue is there. I’m not sure about other ISP’s since i didn’t get a chance to check. but will check and let you know.
June 28th, 2009 at 11:47 am
@ kalinga
thanks
July 24th, 2009 at 8:40 pm
Hay
Dialog 3G experience improved lot… i am in Dehiwala and i get more than 1.5Mpbs in speednet site… sites are loading prity fast…
also no prob for the you tube as well
July 26th, 2009 at 10:24 pm
Youtube issue is no longer there on SLT and Mobitel HSDPA.
how ever have any one experiencing disconnection issues with Mobile HSDPA, where you get disconnected after some time ?
July 30th, 2009 at 8:03 pm
Could you please tell us how Huawei E160 Unblock?
August 1st, 2009 at 6:46 pm
@ kalinga
i saw article saying that mobitel going to launch NGN in the form of LTE…
do you know the time frame and speed they are going to give? i read its about 326mbps down link…..
August 3rd, 2009 at 6:15 pm
@ kalinga
did you find anything related to my above comment?
August 3rd, 2009 at 6:39 pm
@ kalinga..
did you find anything related to my above comment?
August 3rd, 2009 at 7:57 pm
@mah
not yet and its not gonna be soon as well..
August 3rd, 2009 at 8:17 pm
this is the news.
http://lankapuvath.lk/index.php?option=com_content&view=article&id=943:mobitel-to-launch-ngn-&catid=20:business&Itemid=84
August 3rd, 2009 at 8:21 pm
@mah
but when ?
for any network after 3.5G is HSPA+ and LTE, but the question is when… maybe 2015 ?
August 3rd, 2009 at 9:40 pm
@ kalinga
it cant be too far!!
i searched the net and found these. LTE will come with the next phase.
—-Sri Lanka Telecom Mobitel, having launched the first 3.5G HSPA network in South Asia, announced today its commitment to embrace Next Generation Network (NGN) with its next phase of expansion which will eventually reach a total over 2500 base stations with an emphasis in covering the North and East of Sri Lanka. In pursuit of its vision to “Lead Sri Lanka towards an infocom and knowledge rich society”, the National Mobile Service provider is set to advance its engine with latest NGN, in order to eventually realize ‘Broadband for All’.
—-The company is set to enhance the capacities of its backhaul to energize both the new and existing sites, taking the fullest advantage of its parent’s (Sri Lanka Telecom PLC) sophisticated IP/MPLS optical fiber backbone, while commencing trials on Long Term Evolution (LTE) as its Next G. This initiative augers well for welcoming and actively supporting the ‘Next Generation Networks Standardization Forum’ hosted by the Telecommunications Regulatory Commission of Sri Lanka (TRCSL) together with the International Telecommunication Union (ITU) and the Commonwealth Telecommunication Organization (CTO), held during the period from 07th to 10th of April, in Colombo.—-
http://www.mobitellanka.com/about/news_press_releases/news_press_2009_mobitel_strikes_with_its_pledge_to_launch_ngn.html
——–Mobitel CEO, Suren J. Amarasekara stated that while his organisation has pledged to undertake investments into NGN discussions are underway to unveil LTE and 4G technology soon. “We want to bring down the costs of technology in the future and we are proud to say that Sri Lanka is in par with any other developed country in the worlds in terms of adoption of the latest ICT technologies.”—-
http://www.itpro.lk/?q=node/1960
i want to know this because i want to buy USB modem. if LTE comes will the modem be usable with that???
and i got a good news for all!!!!!!!!!
mobitel zoom tariff will be revised with in week or so. they will give 8Gb for 1200/=
and 1Gb will be 240/= approx.
August 3rd, 2009 at 9:50 pm
@mah
don’t believe every thing you read, LTE will take some time, i say maybe in 2013~14 maybe, since LTE mean they need to upgrade there network once more, don’t think the network will spend that much money once more after spending on the 3G to HSDPA upgrade, so will take time.
also no HSDPA modem will NOT work with LTE. also there are no LTE devises for sale at the moment. in USA LTE tests will stare in 2010 or so.
August 3rd, 2009 at 10:12 pm
@ kalinga
thank you
i ll buy the modem then.
and are you still using mobitel HSPA? new tariff revision i m sure.
August 3rd, 2009 at 10:22 pm
@mah
yeah with Mobitel, but no much happy as it keep on getting disconnected.
August 3rd, 2009 at 10:27 pm
@ kalinga
i m using my double m voice sim for internet with my hspa phone. no such problem at all. speed also i mb always. thats why i m going to go for proper data connection
August 3rd, 2009 at 10:31 pm
@mah
lucky you, i have checked with more then 10 ppl all of them have the same issue, this is not about speed, even mobitel them confirmed the issue but no resolutions as yet.
August 3rd, 2009 at 10:53 pm
@ kalinga
but i use mobitel for only short durations.
so that may be the reason i didn t experience that.
anyway they will fix it i think? i m also going to buy zoom package this week.
August 3rd, 2009 at 11:02 pm
@mah
yeah you cant notice it for short durations.
August 11th, 2009 at 12:44 pm
හොද ලිපියක්…. කවුරු වුනත් කියන speed එක දෙන්නෑ… මම නං DIALOG පාවිච්දි කරනවා… මම සම්හන්ධ වන tower එක වැඩිය busy නෑ…. ඒක නිසා මටනම් හොද speed එකක් ලැබෙනවා…..
August 20th, 2009 at 1:08 am
@ kalinga
my m 3 connection speed dropped to 200-500kb after 11pm yesterday and 2 days before.
yesterday speed recovered in 30 minutes.
and before 11pm speed was more than 1mb. i checked several times with several servers because of this issue.
did you also experienced that?
September 13th, 2009 at 10:12 pm
@ kalinga
m3 packages changed.
you get 8 Gb for 1290 now.
check on line.
September 14th, 2009 at 9:13 am
@mah
can u put the link pls.
September 14th, 2009 at 10:20 am
කාලිංග විජය පරිගනක සගරාවේත් මේ ලිපිය දාල තියෙනව දැක්කා.
September 15th, 2009 at 1:04 am
@ binuka
cant put it as its https page…
have to log in to mobitel my account
January 11th, 2010 at 7:09 am
@ALL
Mobitel HSDPA වල අද තත්වය
http://sinhala.kalingasblog.com/2010/01/10/success-kills-mobitel-hsdpa/
January 30th, 2010 at 10:15 pm
@ALL
Sri Lanka Government see the Light on Sri Lanka’s Broadband Speeds
http://sinhala.kalingasblog.com/2010/01/30/sl-gov-sees-the-light-on-sri-lankan-broadband-speeds/
February 10th, 2010 at 1:21 pm
@ALL
One more way to make HSDPA better, Join now
http://sinhala.kalingasblog.com/2010/02/10/hsdpa-mobile-broadband-quality-testing/
February 28th, 2010 at 10:31 pm
@කාලිංග:
ඉතාමත් වටිනා ලිපියක්,keep it up bro..
But :’( as i commented in your blog “Success Kills Mobitel HSDPA” it is again below 5 KBbps
for me using Mobitel 4GB connection though i’m receiving 100% signal strength.But,මම කොහොමටවත් පිලිගන්නෙ නෑ ඔබ කියන විදියට Mobitelලගෙ customer service එක හොදය් කියන එකට! Refer my previous comment in “Success Kills Mobitel HSDPA”.
මම මාස 6ක් තිස්සේ hotline එකට 30-40පාරක් විතර කතා කරන්න ඇති,,Kandy,Gampola Mobitel arcade වලට 10පාරකට වඩා ගියා,emails 10ක් විතර යැව්ව,කිසිම reply එකක් වත් call එකක් වත් අවෙ නෑ! so i’m not agree with u in that matter, and i hope/wish Dialog is better than that!(i dont know about Dialog much more)
Another thing i like to point out is in Kandy area i have tested speeds of several locations but i couldn’t found any single place that Mobitel is faster than dialog!!
Also people @ Mobitel don’t have proper communication with each other.. i don’t like to talk about customer care as they are “idiots”(know about nothing), but even the testers who are checking the system don’t have proper communication with engineers.Also as i got to know that there are no equipments in kandy to check the network! people from colombo must come and do it
(also only few equipments-(with GPS) for whole Mobitel)
Another thing that i got to know is, there are 7 E1 channels are established within their towers but only 1 or 2 are activated for HSDPA to avoid wasting of E1 ,,without considering about their customers. So in our area-Gampola the speed drops about to 4Kbps @ night & holidays..
Hey,that සැටලයිට් Ku dish thing is cool bro!
and i wana know little bit about exact speeds that individual ISP s are receiving and are they connected to the internet backborn separately or not.. -thank you-
February 28th, 2010 at 10:43 pm
@Prabhath
oh, refer to my new views about Mobitel HSDPA on success kills mobitel hsdpa
http://sinhala.kalingasblog.com/2010/01/10/success-kills-mobitel-hsdpa/
not only you, most have that issue with Mobitel now.