Hi,

the git:// thing you downloaded contains what you need.

but please learn how to use git and switch to another branch.

this is what you need to do. It will be useful for your own global IT culture.

Sebastien

On Tue, Oct 5, 2010 at 2:24 PM, Marten Christophe technosabby@gmail.comwrote:

Hello All,

...

I have cross compiled my code, long time back and it is running

successfully on my c123, done all prerequisite like libtoolchan and ARM elf cross compiling. Layer1.bin , even i run ./bcc_scan and all other commands. successfully.

I compiled the code downloaded from * git://git.osmocom.org/osmocom-bb.git,

but as Sylvain suggested me the TCH support is available only in *sylvain/testing branch for now.

i again downloaded new copy *git://git.osmocom.org/osmocom-bb.git, from and manually verified the file he done changes

like layer1/makefile

but the changes was not present hence , my question is very simple, how i can download codes for ** *sylvain/testing branch or if there is something other method to compile * ** *sylvain/testing branch, kindly advise me plz.

Hello Mr. Deiter,

Yes i want to get same TCH on all mobile a BTS is transmitting ,

Plz Plz ,Kindly elobarate me MOC or MTC stand for. if you have some spare time

Kindl Regards,

Hello Mr. Nordin,

So nice of you, thanks it worked perfectly.

End Mr. Dieter , Thank you alot

No need to tell me about MOC and MTC ,i searched internet and got plenty of understanding,

well, i let me introduce you all my work here , i'm assosiated with a NGO, who works for education of poor children specially located to very remote sites of the devloping or under develop poor countries.

and students, have travel long distance for there schooling , you wont belive that some of the villages are on mountain, end even childrens have cross rivers tgrogh rope , hanging on a spin roller , can you imagin the situation.

and most of the student give up their education. My future plans are : Hence a top Tecchnelogical and Engineering instititute and a Local top IT and computer manafaturing company along with my NGO, are developing a $10 note book computer, just for edcational purpose , and will be distributed them for free .(60% bearing the local govt.) these notebooks will be install with their 6 moth curricular( one semester or term) all course material will be pre-installed. the fedaral goverments will also be helping in this purpose. who will ask local telecommunication athourities , to provide us,at least one ARFCN , without licensing fee,

but there is no intrastucture for internet and in some villages no PSTN or mobile network available

My planning here is to setup a USRP1( i have to write Matt Ettus to provide it on concessional price , cause it is for charity) based BTS , at each visnity of a village, which might cover near by villages also.

I know, Timing Advance and power control will challenge for me, but i'll overcome the same , as far as RX part is concerned , it wont be a huge problem because one village is less then 1 KM redious , if USRP BTS installed in center.

will install compal based hardware, within, notebook, pre-tuned it to a fix Time slot (TS), most of the traffic will be from BTS to MS , we will left only one or 2 TX slot , and will be share amoung all the students in token ring fashion ( let say there is 15 students are in one visnity if any on student want to ask any question to their remote teachers (mostly volunteers, or Govt add) located in NGO'S head office)

all USRP's backbone pipe/link will be interconnected through RF links ( a Israel based company have very cheap solution for small bandwidth RF connectivity ) finally this backbone pipe/link will terminate at nearest city or place where Internet facility is available. and all the traffic will be routed to NGO's head quarter.

so for this we need only 64 KB max bandwidth. that we can afford.

thats it , by this we are able to provide secondary education even children are at their home. at first we thout to install a IP DSLAM but the price and copper cost (to provide line to each student is so high and out of budget)

in future i can enable GPRS functionality of compal and might able to provide Internet access too, to them but we have to put higher bandwidth Backbone , so its not in my list now.

Wish me luck.

Hi Peter,

I hope you are aware of the OLPC project, because you seem to share some of the same goals. See http://laptop.org/

Yes I'm .... and HCL is taken up into manufacture it

setup a USRP1 based BTS .. which might cover near by villages also.

With 11 dbi Anettena and appropriate PA . we can do it up 5 to 10 KM ( send a mail to Ettus)

Did you research other RF interfaces than the one used by GSM?

Yes , and are legacy . need higher bandwidth. and Why I'm not thinking for Armature radio or Air broadcasting .. it is only One way..and other drawbacks

do you have any suggestion ?

...

...

Define cheap and small bandwidth?

They have very cheap equipments ( out of store almost) for providing low bandwidth. like 64 Kbps, 54 Kbps even 9 Kbps RF interface.

on demand they can supply.

you will be kind enough you you give me other cheap solution after all its all for charity..

rather then GSM ,

and one more cause to attract me here is in some places we have GSM infrastructure and , Govt and some private operator will let us user some part of it.

Kind Regards,

Marten Christophe wrote:

...

Did you research other RF interfaces than the one used by GSM?

Yes , and are legacy . need higher bandwidth.

If all you looked at was legacy solutions with too low bandwidth for your needs then obviously you should look for further solutions. :)

Some research in the particular area of long distance using variations of WiFi:

http://tier.cs.berkeley.edu/drupal/wireless http://tier.cs.berkeley.edu/drupal/publications#wireless

They used to have a wiki, but I guess they've changed their site structure and have not yet updated all links. Archived pages:

http://web.archive.org/web/20070613191117/http://tier.cs.berkeley.edu/wiki/W... http://web.archive.org/web/20080527020040/http://tier.cs.berkeley.edu/wiki/P...

and Why I'm not thinking for Armature radio or Air broadcasting .. it is only One way..and other drawbacks

I don't believe your idea of amateur radio is very accurate. Actually I don't think amateur radio has ever been about one way communication. :) Broadcasting is, but maybe that's also something your application can benefit from if governments help with spectrum.

do you have any suggestion ?

I think that using GSM in this application is a hack, with both the good and bad things that implies. I think the plan can work, and it does have some advantages, but more importantly I think that all the disadvantages, some of which may be significant, must be evaluated carefully before investing too much in the idea.

The advantages are probably mostly non-technical. The disadvantages are mostly technical. (E.g. you already know it does not scale.)

...

...

...

Define cheap and small bandwidth?

They have very cheap equipments ( out of store almost) for providing low bandwidth. like 64 Kbps, 54 Kbps even 9 Kbps RF interface.

So it seems that you should have a closer look at the work by TIER.

you will be kind enough you you give me other cheap solution after all its all for charity..

I can't give you any solution at all, but I am trying to point out that there may be quite significant and relevant research and publically available resources which you seem to have been overlooking completely in the project so far. This suggest that you need to do (much) more research.

and one more cause to attract me here is in some places we have GSM infrastructure and , Govt and some private operator will let us user some part of it.

This is one of the significant non-technical advantages of using GSM for your project. On the other hand, if you can create something else which is much better and comes at much lower cost, then there's much less of an advantage.

//Peter

2010/10/6 Marten Christophe technosabby@gmail.com:

Hi Peter,

Thanks  Sébastien,

Thanks Benjamin,

It looks some useful let me understand this

Yes , I'm alone for this project as my NGO's  planned for installing the, course-ware and distribute them. but I'm insisting , this interactive feature , and hardly i get permission for pilot work

and no one here from Telecommunication field , and as technical as I'm. if i could not prof my self they will go as previous plan. means students have to visit nearest center for help. if i successful demonstrate only then the company who is manufacturing this will be ready to install compal hardware within it we can't insist  them also coz they are working on this project for no loss no profit.

Thanks all for help, i will PM you from next time  , if i need any help from you , coze i dont feel this mailing list is right place to  discuss this,

before Harald scold me i should pack-up :)

...

If all you looked at was legacy solutions with too low bandwidth for your needs then obviously you should look for further solutions. :)

Forgive me  for my english Legacy means proprietary equipments, solutions and technology. and deliver more bandwidth then required. so its useless spending money.. when you already in lacking. already modification to $10 OLPC hardware reached it around 6 times high.( to accommodate course ware for intermediate schooling and player) this is not as same as OLPC. it's much facilitated.(i should not disclose its under development)

...

I don't believe your idea of amateur radio is very accurate. Actually I don't think amateur radio has ever been about one way communication. :) Broadcasting is, but maybe that's also something your application can benefit from if governments help with spectrum.

I don't mean to say it cant, communicate bi directional, but limitation is there , who will tune it ? in remote villages, also how costly it will to provide a ameture or hame radio set to each student? where as the compal mother board only ( dont need LCD, keypad enclosure) and as i searched they have it in production until 2009 might give me under $5. at least i can gather 10-15 from obsolete , repairing even junk seller shops form my pilot projet so i drooped the Idea. there are few contries where even in single   region  more then 4-5 regional  languages spoken.

initially we will start 2 regional language channels on each TS of a single ARFCN, in just  200KHz b/w, we have 7 TS. means 7 channels, every regional language will be associated to specific TS and ARFCN, will be configured at the time of production. for pilot project. think it like this , One lecture being broadcasting on TS-1,   20 students are tuned to it. In the same ARFCN one TX slot free and they will use it to ask question , and it will obvious that students ask question one by one, even in normal classes.

so i don't need continuous two way communication. ,  transmitting part will be shared among all 20 or more.

Aren't you reinventing PoC (http://en.wikipedia.org/wiki/Push_to_talk) ? It may prove easier to base your work on that.

Best regards, Maciej Grela

Hi all,

This discussion has for a large part been off-topic. Please understand that this mailing list has a very narrow scope: Development of the OsmocomBB gsm baseband processor firmware / protocol stack.

Thanks for your understanding and for keeping it on-topic. -- Sent from a mobile device, excuse my short response