4 Knowledge Base


 TelecomTrainning.net > Knowledge Base
 Viewing KB Article
Good Morning, - Please register or - log-in to your account.
Search   Saved Questions   Ask a question
Available categories
100 of Questions in LTE
CCNA Certification
CCNA Sample Q & A (1000 + Q &A)
(Network +) Certification
(Network +) Sample Q & A (1000 + Q &A)
General/Interview Q& A on Networking
Home Networking
General/Interview Q& A on Networking
VOIP, SIP & Asterisk
Q & A on VOIP,Ethereal, SIP & Asterisk
Telecom Test Equipments
Q & A on Telecom Test Equipment
PSTN / Wireline
General / Interview Q & A on PSTN / Wireline
LTE, Wireless, 3G ,Diameter and HSS
General/Interview Q & A on LTE, Wireless, 3G ,Diameter and HSS
Telecom General
Any Q & A in Telecom in General

Top Questions
Friends, Describe Secure storage and distribution of A-Keys?
How do I monitor SS7 Traffic in spectra2?
what is the difference between E1 signal & Ethernet signal ?
Explain me the difference between a repeater, bridge and router? Relate this to the OSI model.
What is the difference between BRI & PRI ?
Can you tell me about PBGT?
Guys what is the purpose of Umbrella Cell Approach in GSM ?
how can we explain media gateway in MSc?
What is GGSN?
What is the difference between Electrical-tilt and Mechanical-tilt of an antenna?
What is demarc point?
What is BSC?
Can any one explain me how sms flow will work using ss7 network ?( from physical layer to application layer)
Explain SLTA and SLTM messages in MTP3?
why cellphone towers are painted in red and white?
Hi guys what is WAP?
wat is the difference betweem MSC & GMSC, & MSS & GCS?
what is EDAp? what is the functions of EDAP?
What is a circuit id?
what is sdh?

what is EDAp? what is the functions of EDAP?
lingam 17-March-2008 04:53:24 AM


Here is what I could find for you. Thanks SKK.

EDAP = trame EDGE

It is recommended that the same timeslot allocation be used for the BSC and BTS. If required, the first EDAP timeslot at the BSC can be different than the first EDAP timeslot at the BTS. Cross connections are allowed, but it is recommended that the whole PCM frame or the n*64 cross connection complies with the ITU-T G.796 (Characteristics of a 64 kbit/s Cross-Connect Equipment with 2048 kbit/s Access Ports, Chapter 2.1) standard in respect to maintaining octet sequence integrity of signals being cross connected. The following precautions help to maximise the EDGE performance:

EDAP and the TRXs that are tied to the EDAP (including traffic/master and signaling channels) must share the same physical Abis connection route. It is also recommended that PCM frames have octet sequence integrity, which can be achieved using one of the following methods:

Using 1-3 PCM lines that perform according to G.796. If BTS capacity requires several PCM lines, a normal network delay variance between the PCM lines does not impact EDGE performance. EDAP pool and the TRXs tied to it, have to locate on a single PCM. Example 4+4+4 configuration: TRX 1-4 and their EDAP(s) on PCM1, TRX 5-8 and their EDAP(s) on PCM2, TRX 9-12 and their EDAP(s) on PCM3.

Using fractional E1, n*64k connection that complies with G.796.

The EDAP pool and TRXs tied to it must have a connection made within a single PCM or a single or multiple n*64k connection inside one PCM that comply with the G.796 in the respect of octet sequence integrity. This structure must be maintained throughout the network.

If the PCM line does not fulfill the octet sequence integrity requirement as specified in ITU-T G.796, a maximum of +/- three PCM frame delay between timeslots is tolerated when BSC software S10.5 ED CD1.2 or newer is used.
Posted by karthi

Q&A Rating

Q&A Rating
Rate This Question and Answer

Related Questions
Friends I have a doubt that, what is Media access control?
What is SIF in ss7?
FCC established rules in 1991on how microwave incumbents would share spectrum? Can anyone explain the guidelines concerning relocation?

Search questions via popularity
Top viewed questions  Top emailed questions  Most printed questions  Most saved questions
Copyright © Telecom Training, All Rights Reserved