From asghar1992 at hotmail.com  Wed Nov 12 18:58:03 2014
From: asghar1992 at hotmail.com (Patrick)
Date: Wed, 12 Nov 2014 11:58:03 -0700 (MST)
Subject: Location update problems on Motorola C118
In-Reply-To: <CABvrX2WT8NeSTxbmeXaJQRaNMbxFYu79N9kgkLJ6cFYphZenhA@mail.gmail.com>
References: <CABvrX2WT8NeSTxbmeXaJQRaNMbxFYu79N9kgkLJ6cFYphZenhA@mail.gmail.com>
Message-ID: <1415818683508-4026710.post@n3.nabble.com>

Hello All:
I am facing a similar problem while in the procedure of making the call. I
am currently located in Pakistan and using Pakistan networks (Ufone/Warid)
for this purpose.
Once i have booted layer 1 (with the same output as given by Maciej) and
then run the mobile application, it says "Paging ignored, we are not
camping" and the location update also fails. I have enabled the Tx command
on line 132 of the main file in target/firmware/makefile. However i didn't
understand that someone in this thread mentioned about layer 1 log, how to
check it? and what to check there?
Now once i telnet localhost 4247 it starts an infinite loop as
MS#1
registering with the network
MS#1
registering with the network
MS#1
registering with the network
MS#1
Searching network
MS#1
registering with the network
etc..... and even if i put 'show ms' command it gives exactly the same
response as mentioned in this thread and if i call 1 <X> it says call
released but doesn't proceed further.
An urgent help would highly be appreciated,
REGARDS,



--
View this message in context: http://baseband-devel.722152.n3.nabble.com/Location-update-problems-on-Motorola-C118-tp4025299p4026710.html
Sent from the baseband-devel mailing list archive at Nabble.com.


From rodarima at gmail.com  Fri Nov 28 21:54:16 2014
From: rodarima at gmail.com (rodarima at gmail.com)
Date: Fri, 28 Nov 2014 22:54:16 +0100
Subject: Send a packet between phones without BSS?
Message-ID: <20141128215416.GA6924@hal>

Hello.

In my phone specs says that it support: UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 
MHz).

At the wikipedia, I can read:


		Uplink			Downlink
GSM-850 	824.2 ? 849.2		869.2 - 894.2

GSM 900: ------------------------------------------------

P-GSM 900 	890,0 - 915,0		935,0 - 960,0
E-GSM 900	880,0 - 890,0		925,0 - 935,0
R-GSM 900	876,0 - 880,0		921,0 - 925,0

GSM1900: ------------------------------------------------

GSM 1900	1850,0 - 1910,0		1930,0 - 1990,0



More clearly(?):
			       MHZ                 1111111111
           88888888888888888888999999999999999999990000000000
           00112233445566778899001122334455667788990123456789
 BAND:     05050505050505050505050505050505050505050505050505
GSM-850  : -----^^^^^----vvvvvv------------------------------
P-GSM 900: ------------------^^^^^^---vvvvvv-----------------
E-GSM 900: ----------------^^^------vvv----------------------
R-GSM 900: ---------------^^-------vv------------------------

(^) means uplink, (v) downlink.

Posible overlap between bands:

SRC Band       From    To         DST Band  Hole size
P-GSM 900 ----(890.0 - 894.2)---> GSM-850 |  4.2 MHZ
E-GSM 900 ----(880.0 - 894.2)---> GSM-850 | 14.2 MHZ
R-GSM 900 ----(876.0 - 880.0)---> GSM-850 |  4.0 MHZ

Can a phone, with a modified baseband firmware, transmit data to another phone 
directly, without BSS? Or are there any hardware limitation?

From https://gnuradio.org/redmine/attachments/115/all_gsm_channels_arfcn.txt

Source channel:
Channel: 0;	Band: EGSM-900	Uplink: 890 MHz,	Downlink: 935 MHz
Channel: 1;	Band: GSM-900	Uplink: 890.2 MHz,	Downlink: 935.2 MHz
...
Channel: 20;	Band: GSM-900	Uplink: 894 MHz,	Downlink: 939 MHz
Channel: 21;	Band: GSM-900	Uplink: 894.2 MHz,	Downlink: 939.2 MHz

Destination channel:
Channel: 232;	Band: GSM-850	Uplink: 845 MHz,	Downlink: 890 MHz
Channel: 233;	Band: GSM-850	Uplink: 845.2 MHz,	Downlink: 890.2 MHz
...
Channel: 250;	Band: GSM-850	Uplink: 848.6 MHz,	Downlink: 893.6 MHz
Channel: 251;	Band: GSM-850	Uplink: 848.8 MHz,	Downlink: 893.8 MHz

For example using a phone on channel 0 (GSM-900 band) to send a packet to a 
phone on channel 232 (GSM-850 band), using 890 MHz common frecuency.

I could't get any useful info about that.

Greetings.
Rodrigo.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 473 bytes
Desc: not available
URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20141128/6c19de17/attachment.bin>

From asghar1992 at hotmail.com  Sun Nov 30 18:54:30 2014
From: asghar1992 at hotmail.com (Patrick)
Date: Sun, 30 Nov 2014 11:54:30 -0700 (MST)
Subject: Wireshark values of Signal level and SNR different from terminal
 (layer 1,2 &3) output values
Message-ID: <1417373670927-4026711.post@n3.nabble.com>

I have been noticing from quite a while that the values of Signal level and
SNR embedded in GSM header (GSMTAP) in wireshark (b/w 0-255) are different
from that visible on the terminal while layer 1 and layer 2 & 3 are
operating (something like -60 dBm and 60 dB respectively). Can anybody plz
explain why is that difference if both these values represent the same
meaning? Is that due to different definations of int8_t and int in GSMTAP.h
and gsm48_rr.c respectively. If yes how to convert these values to dBm as
shown in terminal?

<http://baseband-devel.722152.n3.nabble.com/file/n4026711/sample10_layer23_data.png> 



--
View this message in context: http://baseband-devel.722152.n3.nabble.com/Wireshark-values-of-Signal-level-and-SNR-different-from-terminal-layer-1-2-3-output-values-tp4026711.html
Sent from the baseband-devel mailing list archive at Nabble.com.