PDCP (Packet Data Convergence Protocol) provides header compression services in the UTRAN to enable 3G networks to efficiently transmit IP packets. The functionality of the Trillium PDCP layer is as follows:

  • Transfer of user data between users of PDCP services.
  • Maintenance of the PDCP sequence numbers for radio bearers that are configured to support lossless SRNS Relocation or lossless DL RLC PDU size change.
  • Performs header compression and decompression of the IP data streams (e.g., TCP/IP and RTP/UDP/IP headers for IPv4 and IPv6) at the transmitting and receiving entity, respectively.
  • Provides the following header compression algorithms
    • IP Header Compression (IPHC)
    • RObust Header Compression (ROHC)

Trillium PDCP software enables Telecom Equipment Manufaturers of NodeB’s, Radio Network Controllers, Mobile Stations, Femtocells, Femtocell Gateways, test equipment or other products to:

  • Accelerate time to market
  • Reduce development costs
  • Reduce project risk of internally developed PDCP applications

FEATURES + BENEFITS

  • Supports UE and UTRAN side functionality
  • Header compression and decompression of IP data streams
    • RFC 2507 IP Header Compression
    • RFC 3095 RObust Header Compression (ROHC)
    • RFC 3096 Requirements for robust IP/UDP/RTP header compression
  • Transfer of user data to convey information between users of PDCP services
  • Maintenance of PDCP sequence numbers for radio bearers that are configured to support lossless SRNS Relocation or lossless DL RCL PDU size changes.
  • Extensive debugging and error checking facilities
  • Conforms to Trillium Advanced Portability Architecture (TAPA)
  • Features a minimized memory footprint ideal for femto and pico cell applications.
  • XML based Test Architecture for acceptance and regression testing.
  • Benefits of licensing Trillium Protocol Software

PRODUCT INTERWORKING

The Trillium PDCP software interworks with Trillium RRC.

CONFORMANCE

Trillium PDCP software conforms to:

  • Trillium Advanced Portability Architecture (TAPA)
  • 3GPP TS 25.323 PDCP specification v3.10.0, 9/2002 (Rel-99)
  • 3GPP TS 25.323 PDCP specification v4.6.0, 9/2002 (Rel-4)
  • 3GPP TS 25.323 PDCP specification v5.9.0, 12/2006 (Rel-5)
  • 3GPP TS 25.323 PDCP specification v6.9.0, 4/2007 (Rel-6)
  • 3GPP TS 25.323 PDCP specification v7.4.0, 4/2007 (Rel-7)
  • RFC 2507 IP Header Compression
  • RFC 3095 ROHC
  • RFC 3096 Requirements for robust IP/UDP/RTP header compression

Contact us for a copy of the Trillium PDCP Functional Specification, which provides a detailed implementation description.