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T - Mobile USA
Posted - 10/02/2009

T-Mobile USA -Engineering Job - GSM Rehome/Reparenting Engineer - Chicago

Company T - Mobile USA
Job Type Contract Job
Job Category OMC/BSC Engineering Technical Jobs
Salary N/A
Location Chicago, USA
Region: North America
Requirements
Education Bachelor's Degree
Work Experience 2-5 years
Job Reference 13714
Details Job Description: T-Mobile Chicago/Milwaukee

BSC and BTS Rehome and Reparenting

Scope of Work

Contractor shall complete all activities for the rehoming and reparenting of
BSC\'s and sites to the Alcatel and Nortel Platforms which include but is not
limited to:

1. Overall Preparation
. Check Work Order for cutsheets, granite information, site lists, etc.
. Verify all information provided is correct, follow-up with Engineering
teams for exceptions including all port, IOF/IMT and parameter settings
. Work with Traffic Engineering team to determine need for and complete any
trunk augment activity required for re-home
. Attend daily rehome status calls
. Coordinate PSAP test windows and drive testers for the cut

2. Alcatel MSS Node Preparation
. Add the BSC SS7 translations
- Add BSC Point Code
- Add SMLC Point Code
- Notify SS7 operations to modify Data fill on the STP
- Add a Link Set for BSC
- Add a Reachable DPC into the BSC Link Set
- Add Links into BSC Link Set
- Add DS0 cross connects for BSC SS7 Links
- Add the SCCP Entity
- Add the Remote SSN Information
- Add RAN/BSS Entity
. BSC Trunk Group Build
- Add BSS Trunk Group and Span/CIC datafill
- Implement DS1 cross-connects for A-Links
- Turn up BSC SS7 links and trunk groups in MSS
. BSC Mobility Config Translations
- Add BSC Cells
- Add PLMN Restriction
- Add LAC Restriction Provisioning
- Create scripts for any LAC/CELL changes as required
. E911 Translations on DMSC
- Add Emergency Service Zone datafill
- Prepare scripts for and enter Emergency LAC/CELL translations
- Request 911 test cell creation from FSC E911 Group
- Test new 911 Indexes and trunk groups if needed
. Add Neighboring LAC relationships
- Add neighboring Network Nodes
- Add neighboring MSC/VLR information
- Add new LAC (Target MSC) and remove old LAC (Donor MSC)
- Coordinate with roaming partners for LAC updates if needed
- Coordinate with SCM group to prepare LAC Modifier scripts

3. BSS Preparation
. Nortel BSC Preparation
- Commission BSC with TML if needed
- Ensure BSC is built on OMCR and datafilled correctly in both OMCR and BSC
data config editor.
- Build test site and verify voice and data connections
- Add/Move sites to the BSC with the transbts or transbsc scripts
- Prepare DACS scripts for A, Abis, Ater, Agprs as needed
- Prepare scripts for handover changes with modify LAC tool
- Datafill and test Lb signaling with Regional E911 team
. Nortel PCUSN Preparation
- Coordinate with SGSN group to add/change LAC in SGSN if needed
- Complete PCUSN datafill, Agprs/Gb link turnup and GPRS testing
. Nokia UMTS Network Preparation
- Complete and verify any RNC/OSS datafill needed for IRAT handovers to
target BSC

4. Rehome/Reparenting Execution
. Turn down trunking and signaling links in old Alcatel MSS or Nortel MSC
. Turn down cell sites on base BSC if needed
. Set Signaling Point and Signaling Link parameters on BSC to new Point Code
with correct parameter settings for MSS, BSSAP/SSN, Lb Interface, etc.
. Complete BDA Build procedure
. Execute scripts in the MSS/BSC/DACS to change connectivity and handovers
to the new homing MSS/BSC
. Set and verify all MSC/MSS local and remote LAC settings
. Execute SCOUT config change on True Position TDOA systems
. Turn up trunking and signaling links on target MSS/MSC
. Turn up sites on target BSC and ensure their recovery.
. Have SCM group execute LAC Modifier scripts
. Complete call testing using Alcatel IMSI/CIC Mapping Tool
. Troubleshoot and resolve any post rehome or drive test identified issues
. Monitor MSS/BSS node alarms and statistics to verify successful execution

5. Cleanup
. Ensure all work order tasks are closed on the installation, commissioning
and execution work orders
. Remove old cross connections, turn down DACS ports, delete old MSS/MSC
datafill and turn down old carriers as required

Minimum Required Skills / Competencies: Contractor must have advanced
experience on the following systems:

Alcatel WSS 5020 \"Spatial\" Call Server and Media Gateways
Tellabs 5500 and 5320L DACS
Nortel GSM DMS Switch
Nortel GSM BSC
Nortel GSM PCUSN
Nokia UMTS RAN systems (RNC and OSS)
True Position TDOA systems

Contractor must have demonstrated experience rehoming BSC/BTS\'s for T-Mobile
or other GSM carrier.
Preferred skills:
Shift / scheduled hours: Variable
A Criminal background check is required
Job summary: Job: T-Mobile USA -Engineering Job - GSM Rehome/Reparenting Engineer - Chicago USA, Chicago, North America, T - Mobile USA, category: OMC/BSC Engineering Technical Jobs
Candidates suitable for this job: 10
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