eCNS300 - Huawei Products
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eCNS300

Huawei eCNS300 solution is applicable to the Global System for Mobile Communications - Railway (GSM-R). It uses a high performance and highly integrated Advanced Telecom Computing Architecture (ATCA) hardware platform. In the eCNS300 solution, core network elements (NEs) such as the mobile switching center (MSC) server, home location register (HLR), and media gateway (MGW) are deployed in one or two cabinets. The ATCA hardware platform uses high-performance chips which provide advanced processing capability. The eCNS300 solution improves network maintenance and reduces the operating expense (OPEX) with fewer nodes deployed between different NEs on the core network.


Railway-oriented Communication

The eCNS300 solution customizes the HLR, MSC server, and MGW for GSM-R (railway—oriented communication) whose maximum number of subscribers is often smaller than 100 thousand. In this case, the HLR, MSC server, and MGW can be deployed together to meet requirements on the railway-oriented communication.



Improved Reliability

The HLR and MSC server use the high-reliability ATCA hardware platform, which improves reliability when a single NE is working. In addition, the HLR, MSC server, and MGW being deployed in the same cabinet improves system reliability because hardware equipment and resources used for network transmission are reduced.



Improved Performance

The HLR and MSC server use the high-performance ATCA hardware platform, which is an improvement in processing capability compared with the Compact Peripheral Component Interconnect (CPCI) platform.



Easier Maintenance

Core NEs are deployed in the same cabinet, which reduces the number of nodes between NEs on the network and hardware equipment. In addition, the eCNS300 solution improves network management and maintenance with fewer OPEX because it only provides four NE deployment models.



Upgrade to the Long Term Evolution (LTE)

The ATCA hardware platform supports a upgrade to the LTE. In the future, carriers can replace the hardware module and upgrade the software to implement the LTE without more investment.


Technical Specifications of the System

Category Parameter Specification Description
System processing capability Maximum number of subscribers (VMSC server) 300,000 (0.025 Erl/subscriber) -
Maximum accessible BSCs 256 -
Reliability System availability (A) ≥ 99.999% -
Mean Time Between Failure (MTBF) ≥ 100000 hours -
Mean Time To Repair (MTTR) ≤ 1 hour (excluding preparation) -
System downtime < 5 minutes per year -
Dual-homing switchover duration < 3 minutes -
Protocol processing capability Supported signaling point code types 14-bit and 24-bit code types -
Maximum source signaling points 32 -
Maximum destination signaling points 800 for narrowband, 1,024 for broadband -
Maximum IP signaling bandwidth 160 x 1000 Mbit/s -
Maximum Stream Control Transmission Protocol (SCTP) links 20,992 -
Number analysis capability Maximum number length of analysis 32 digits -
Maximum call prefixes 200,000 -
Maximum global title (GT) codes 60,000 -
Maximum GT translation capability on a single 64-kbit/s MTP links 60 GTT/s -



Physical Specifications of the Cabinet

Parameter Specification
Cabinet model N68E-22
Dimensions (height x width x depth) 2200 mm × 600 mm × 800 mm
Weight < 300 kg
Load-bearing capacity of the floor in the equipment room > 300 kg/m2
Available height 46 U (1 U = 44.45mm)



Power Supply Specifications

Parameter Specification
Operating voltage (standard configuration) Rated voltage -48 V/-60 V DC
Voltage fluctuations -72 V to -36 V DC
Operating current ≤ 87.5 A
DC per fuse ≥ 60 A (a single channel)

Four NE Deployment Models

At present, the eCNS300 solution provides four NE deployment models:


NE Deployment Model Description
Two cabinets (the MSC server, HLR, and MGW) The MSC server and HLR are deployed in the same cabinet and each occupies a subrack.
NOTE
A single cabinet (housing the HLR, MSC server, and MGW) supports a maximum of 300 thousand subscribers and 120 CSD channels. Therefore, it can meet most railway operation requirements.
Single cabinet (the MSC server, HLR, and MGW) The MSC server, HLR, and MGW are deployed in the same cabinet.
Two cabinets (the MSC server and MGW) The MSC server and MGW are deployed in different cabinets. NOTE Each NE is independently deployed in the cabinet.
Single cabinet (the MSC server and MGW) The MSC server and MGW are deployed in the same cabinet and the MSC server is placed in one subrack.
NOTE
Each NE is independently deployed in the cabinet.


Typical Networking Topology

Typical Networking Topology

The eCNS300 solution supports Customized Applications for Mobile network Enhanced Logic (CAMEL) 4 and CAMEL3, and is backward compatible with the functions of CAMEL2 and CAMEL1. It provides various intelligent network (IN) services in a fast and easy manner on the GSM-R network after being integrated with the TELLIN IN network.



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