LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices

Reply
 
Search this Thread
Old 03-30-2006, 11:05 PM   #1
sailu_mvn
Member
 
Registered: Sep 2004
Location: Hyderabad
Distribution: FEDORA,REDHAT,HOST
Posts: 440
Blog Entries: 1

Rep: Reputation: 30
Smile difference between Channel Associated Signalling and Common Channel Signalling


I would like to know the difference between channel associated signalling and common channel signalling.

I get very confused when I try to differentiate them.

I will be really glad if anybody can get me out of this.


Thanks in advance
 
Old 03-30-2006, 11:45 PM   #2
macemoneta
Senior Member
 
Registered: Jan 2005
Location: Manalapan, NJ
Distribution: Fedora x86 and x86_64, Debian PPC and ARM, Android
Posts: 4,593
Blog Entries: 2

Rep: Reputation: 326Reputation: 326Reputation: 326Reputation: 326
Channel associated signalling means there is a one-to-one relationship between the traffic channel and the signalling channel. There is a signalling channel for every traffic channel.

Common channel signalling means that all the traffic channels use a single shared (common) signalling channel - a one-to-many relationship.
 
Old 03-31-2006, 04:06 AM   #3
sailu_mvn
Member
 
Registered: Sep 2004
Location: Hyderabad
Distribution: FEDORA,REDHAT,HOST
Posts: 440
Blog Entries: 1

Original Poster
Rep: Reputation: 30
can u detail me in terms of voice and data channels?
 
Old 03-31-2006, 06:25 AM   #4
macemoneta
Senior Member
 
Registered: Jan 2005
Location: Manalapan, NJ
Distribution: Fedora x86 and x86_64, Debian PPC and ARM, Android
Posts: 4,593
Blog Entries: 2

Rep: Reputation: 326Reputation: 326Reputation: 326Reputation: 326
If it is using CCS, multi-octet messages are sent on the signalling channel (out of band to the payload) that include identification of the channel being signalled. The separation of the signalling, and the use of a common channel allows the payload to have access to the full 64Kbs bandwidth. This is used with SS7, for example.

With CAS, each channel is associated with 4 bits (2Kbs) of signalling. Because the signalling is embedded (inband) with the payload, the payload speed is reduced to 56Kbs. You'll also see this referred to as robbed bit signalling, since you're stealing bits from the payload.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Kernel module signalling atticman Linux - Software 0 01-17-2005 06:04 PM
AirSnort works on only one channel - channel 11 kchhabria Linux - Wireless Networking 0 12-21-2004 03:53 PM
Best utilization of the channel ivanatora Linux - Networking 0 07-19-2004 01:25 PM
Hard drive in primary channel showing in secondary channel Ale Linux - Hardware 2 02-20-2004 11:39 AM
channel crazyness DBabo Linux - Networking 2 08-25-2003 09:26 PM


All times are GMT -5. The time now is 09:18 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration