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LTE Small Cell Gateway Solution

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An LTE Small Cell Gateway solution is introduced to aggregate a large number of LTE Small cell traffic backhauled over fixed line broadband links such as cable modem, DSL or fibre, thus enabling efficient connection to the operator’s core network.

ASTRI offers a complete LTE  Small Cell Gateway solution for technology licensing, which includes the three logical components: Security Gateway (SeGW), Home eNode B* Gateway (HeNB GW) and Home eNode B Management System (HeMS).

*In 3GPP term, LTE Small Cell  is called Home eNode B (HeNB).

Highlights of ASTRI’s LTE Small Cell Gateway Solution

  • Aggregate user data streams
  • Core network interface
  • Separation of control plane and data plane
  • High availability SeGW with IPSec and high throughput (10.25Gbps)
  • Flexible HeMS design with multi-vendor Small cell support
  • Mobility control
  • Authentication, authorization, and data integrity
  • QoS policy enforcement
  • Capacity
    • 100K plus on-line users and 50 calls per second
  • Hardware platform
    • CLI via Telnet and web interface via HTTP/HTTPS
    • MicroTCA modular hardware platform
    • Intel x86 processor AMC for HeMS
    • Cavium 12-core processor AMC for SeGW and HeNB GW
    • Hot-swappable hardware with N+1 redundancy
  • Linux OS (carrier grade);
  • Management
    • SNMP
    • Automatic configuration of Small cell device
    • HeMS discovery

SeGW Key Features

  • IKEv2 certificate-based device authentication
  • EAP-AKA-based hosting party authentication
  • IPSec tunnel establishment
  • Device authorization (AAA client support and EAP authenticator support)
  • Data encryption/decryption.

HeNB GW Key Features

  • IP address allocation
  • Packet filtering and relaying
  • GPRS tunnelling protocol
  • Stream control transmission protocol (SCTP)
  • 3GPP interfaces: S1-U, S1-MME
  • CPT-U
  • Paging optimization
  • NAS node selection
  • HeNB registration and de-registration
  • UE-associated S1 application
    • E-RAB set-up/modify/release
    • HO resource allocation and cancellation
    • Path switching and cell traffic trace
    • UE context set-up/release/modification
    • Paging and location reporting
  • Non-UE-associated application support
    • Reset, S1 Set-up, overload handling, configuration updates, status transfer

HeMS Features

  • TR-069 standard Interface
    • Complies with CPE WAN management protocol (CWMP) v1.1
    • Auto-configuration and dynamic service provisioning
    • Identity management for wed applications
    • Software/firmware image management
    • Hardware diagnostics
  • Discovery and registration
    • Serving HeMS discovery
    • HeNB registration with serving HeMS
  • Configuration management
    • HeNB reboot, start/stop radio transmission
    • Remotely reconfigures frequency and radio bandwidth of HeNB
    • HeNB (remote) configuration through file download, or RPC methods
  • Fault management
    • Alarm handling mechanism configuration
    • Throttles the sending of alarms from the HeNB to the HeMS
    • Retrieves alarm related information from HeNB through TR-069 RPC method calls
    • Activates and deactivates alarm reporting by HeNB
  • Performance management
    • Policy configuration for HeNB performance data file upload
    • PM file upload
  • Security management
    • IPsec tunnels between HeMS and HeNB
  • File management
    • Secure file upload/download using TR-069 compliant file transfer protocols