Case Study: Small Macro Cell Sync Solution
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Orange Egypt, the largest mobile operator in Egypt, has transitioned to a 4G internet service, collaborating with Oscilloquartz for network synchronization solutions. The document details the shift from legacy networks to IP/MPLS systems and the challenges of deploying small cell solutions, including synchronization suitability and performance validation. The proposed solution, the OSA 5421 clock, has been tested successfully for synchronization performance and is currently being deployed as part of Orange Egypt's ongoing network enhancements.
Case Study: Small Macro Cell Sync Solution
- 1. Case Study: Small Macro Cell Sync Solution ITSF, Nov 2016 Mr. Sherif Abdel Hamid, Senior Engineer, Orange Egypt Dr. Djamila Duc, Business Development Director MEA, Oscilloquartz
- 2. © 2016 ADVA Optical Networking. All rights reserved. Confidential.22 Orange Egypt (i.e. Mobinil) 1st and biggest mobile operator in Egypt 2G/3G/4G/LTE mobile operator Number of mobile BTSs: above 5000 sites Number of mobile subscribers: 35 million On October 14, 2016, Orange acquired its fourth-generation (4G) internet services license after signing a 484 million USD agreement with the national telecom regulator Entity of Orange Group since 2012 100% shares
- 3. © 2016 ADVA Optical Networking. All rights reserved. Confidential.33 Oscilloquartz & ORANGE: Long-Term Relationship Oscilloquartz & Orange met in 1997 thanks to NEC Oscilloquartz products deployed in Orange Network: Cesium SSU: OSA 5548C with PTP cards GNSS receivers: OSA 5240, OSA 5210 PTP grandmasters: OSA 5421 (recently) Sync probing solution Network management systems: SyncView Plus and FSP NM Network design services and others OSA 5240 OSA 5210 OSA 3230B OSA 5548C TCC-PTP Card OSA 5421
- 4. © 2016 ADVA Optical Networking. All rights reserved. Confidential.44 Heading Towards Carrier Ethernet Networks • Rapid deployment of small-cell solutions that are compatible only with IP backhauling • Existing plan to shift all existing RAN to IP with accordance to IP- 2020 program. • In accordance with the above plan, transport network deployments move from legacy SDH, PDH towards IP-MPLS network deployment • Existing TDM synchronisation using legacy PRC/SSU architecture was no longer suitable
- 5. © 2016 ADVA Optical Networking. All rights reserved. Confidential.55 Network Restrictions and Explored Solutions • Backhauling capability to handle such small cell deployment is only through 3rd party HDSL (i.e. Telecom Egypt) • Part of IP-MPLS cloud is also 3rd Party with unknown PDV performance • Network is a PTP unaware network (brownfield network) • SyncE Not suitable for such small cell deployment over HDSL, can only be used for macro site deployment • PTP 1588-V2 Suitable for small cell deployment but with unknown performance over PTP unaware network/3rd party leased lines Which solution for best sync performances: SyncE vs PTP?
- 6. © 2016 ADVA Optical Networking. All rights reserved. Confidential.66 Adopted Sync Solution Proof of concept is necessary to validate achieved sync performance over each scenario
- 7. © 2016 ADVA Optical Networking. All rights reserved. Confidential.77 RNC IP/MPLS Router(P/PE) IP/MPLS Router(PE) GE MW IP/MPLS Cloud (SDH Cloud) Node-B (Full IP) GE/FE GE Core Site Aggregation Site Node-B Site PTP Master Clock (SSU) PTP Slave PTP BC/Probe (5410) PTP Master Chain PTP Probe/BC Chain PTP Slave Chain PTP 1588 -V2 Test Scenario #1
- 8. © 2016 ADVA Optical Networking. All rights reserved. Confidential.88 RNC IP/MPLS Router(P/PE) ModemModem IP/MPLS Router(PE) GE HDSL GE/FE GE/FE IP/MPLS Cloud Atom Cell PTP Master Clock (SSU) PTP BC/Probe PTP Slave Core Site Aggregation/Node-B Site PTP Master Chain PTP Probe/BC/Slave Chain PTP 1588 -V2 Test Scenario #2
- 9. © 2016 ADVA Optical Networking. All rights reserved. Confidential.99 Test 1: Macro node-B through MW link chain with ITUT G.82651 (frequency synchronization) Test 2: Huawei ATOM cell through HDSL 3rd party (TE) with ITUT G.82671 (phase synchronization) PTP 1588 -V2 Tests and Results
- 10. © 2016 ADVA Optical Networking. All rights reserved. Confidential.1010 Conclusion • Successful testing and best approach determined and approved • Adopted product is OSA 5421 PTP delivery (freq and phase with 512 slaves capacity) with latest ITU-T standards 16X BITS outputs Sync probing or real-time monitoring included NTP server capabilities • Solution currently under deployment (phases-based) • Ongoing 4G design and OSA 5421 may be massively deployed in future ISA Orange Egypt is satisfied with Oscilloquartz solutions as usual
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