Saturday, June 16, 2012

How to get HSDPA users in Ericsson System?

This is the formula:

HSDPA users average cell:

HS_Users = (pmSumBestPsHsAdchRabEstablish) / (pmSamplesBestPsHsAdchRabEstablish)

Click on counter to view detail description in counter.

If you know another way than please share it.

Know more on HSDPA Low Throughput Analysis

Thursday, June 14, 2012

How can I find RRU Type in Ericsson NodeB?

There are several ways to Find RRU type in Node B.

For Ericsson System connect through MOSHELL and

Enter command cabx you can find the RRU type.

Also enter INVH Command for RRU and DUW type.

If You Know More Ways to Know than Discuss Here

Tuesday, May 29, 2012

UMTS/HSPA to LTE Migration

UMTS/HSPA to LTE Migration- A white Paper from Motorola Maximize the life and value of existing assets while achieving a true 4G network

Download Full lenth Paper from Here

Contents
Abstract
- A Dynamic Industry and Technology Evolution
- LTE Performance
- UMTS " LTE Network Architecture Evolution
- Determine the Business Case for LTE
- Subscriber Device Availability
- Deployment Considerations
- Seamlessly Connected Network
- Spectrum Implications
- Maximize Existing Assets
- UMTS to LTE Upgrade Strategy
- UMTS/LTE Architecture
- Functional Elements
- UMTS / HSPA RAN Site Upgrade to LTE
- Backhaul Site Upgrade to LTE
- LTE Voice
- LTE Video

Download Full lenth Paper from Here

Monday, May 28, 2012

Thursday, May 3, 2012

RRC Establishment Causes

RRC Establishment Cause Description
Cause 0 Originating Conversational Call
Cause 1 Originating Streaming Call
Cause 2 Originating Interactive Call
Cause 3 Originating Background Call
Cause 4 Originating Subscribed traffic Call
Cause 5 Terminating Conversational Call
Cause 6 Terminating Streaming Call
Cause 7 Terminating Interactive Call
Cause 8 Terminating Background Call
Cause 9 Emergency Call
Cause 10 Inter-RAT Cell re-selection
Cause 11 Inter-RAT Cell change order
Cause 12 Registration
Cause 13 Detach
Cause 14 Originating High Priority Signaling
Cause 15 Originating Low Priority Signaling
Cause 16 Call re-establishment
Cause 17 Terminating High Priority Signaling
Cause 18 Terminating Low Priority Signaling
Cause 19 Terminating – cause unknown


 

Sunday, April 8, 2012

What are Events that can trigger the HSDPA Cell Change?

Event 1d HS – Change of Best Cell in the Active Set
Event 1b or Event 1c – Removal of the Best Cell from the Active Set



Saturday, April 7, 2012

What will be the impact when you change ‘reportingrange1a’ from 3 to 4 dB and ‘timetotrigger1a’ 100 to 320 ms, without changing any other parameters?

  • Reduction in number of Event1a
  • Delayed Event1a trigger
  • Reduction in Average Active Set Size
  • Delay in Event1a could increase DL interference, which could lead to a drop call or increase in Average Power Per User (reduction in cell capacity)