Overview | Thrust Areas | Skills Sets | Case Study

WiMAX Services Skill Sets

Aricent, with its deep domain knowledge, stringent quality standards, and strong partnerships with industry leaders, offers accelerated end-to-end development and integration of WiMAX systems, helping the OEMs shape the wireless networks of tomorrow - today. The following reflects on Aricent's skill sets in the WiMAX domain:

• WiMAX mobility-related expertise
• WiMAX Medium Access Control (MAC) expertise
• WiMAX Fast Path expertise
• WiMAX-related protocol expertise
• Network Processors expertise
• Integration and Testing expertise
• Embedded Systems
• Packet routing and switching
• Protocols
• Network management

• WiMAX mobility-related expertise:
• Admission Control
• Authentication and Security
• IP Mobility
• Handoff
• Bicasting
• Buffering
• Idle Mode, Location Update, Paging
• Address Allocation and Management
• QoS



• WiMAX Medium Access Control (MAC) expertise:
• Scheduling
• (De-)Multiplexing of PDUs
• Mapping between logical and transport channels
• Transport Format Selection
• Priority Handling
• Access for Common and Shared Transport Channels
• Dynamic Transport Channel Type Switching
• Scheduling on Common Channels
• Flow Control



• WiMAX Fast Path expertise:
• Data Classification
• Packet Forwarding
• Traffic Bicasting
• GRE Tunneling
• Routing
• Multicasting



• WiMAX-related protocol expertise:
• R6 Authentication Relay and Key Distribution Protocol
• R6 Data Path Establishment Protocol
• R6 Radio Resource Management Protocol
• R6 Location and Paging Control
• DHCP
• IGMP Proxy
• MIP
• DNS
• RADIUS
• GRE



• Network Processors expertise:
• Intel IXP24xx, IXP 28xx, and IXP 12xx
• Motorola, EZChip, IBM, and Agere
• Fast Path Processing (L2/L3)
• Medium Path Processing (L4-L7)
• Control Plane Processing
• Single & Dual NP Mode Experience
• 3G RNC Data Plane and IPSEC applications



• Integration and Testing expertise:
• System level integration: Understanding of Fast and Slow Paths, Management Plane, and protocols & interfaces (R3,R4,R6) involved.
• Mobility-related experience: Handover issues (bicasting, buffering), routing, authentication, and security etc.
• Experience in third party integration: Interfacing with multi-vendor ASN Gateways, Base stations, AAA servers, and HA nodes
• Wireless experience: Experience in design, development, integration, testing, and field deployment of 2/2.5/3G nodes
• NodeB, BTS, RNC, BSC, SGSN, GGSN, HLR, and VLR
• Testing expertise: Test engineering and consulting, test execution, test automation, and multi-vendor interoperability services.



• Embedded Systems:
• Microcontrollers and microprocessors - Intel x86, RISC, Motorola MPCxxx, MIPS, TI, ARM, NEC, and Hitachi
• Device driver development - Flash, EEPROM, DMA, Serial Communications, SDLC/HDLC controllers, Ethernet and Fast Ethernet, SONET OC3 PHY, and ATM -AAL5BSP development: Real Time clock, SCCUART/SMCUART, and MMC flash devices
• DSP: Audio/video/modem codecs, and GSM/GPRS/UMTS Baseband codecs
• RTOS: VxWorks, pSOS, Nucleus, iRMK, OSE, and QNX Neutrino
• Multicast support (IGMP Proxy for SS/MSS)



• Packet routing and switching:
• Multiple router architectures: Access routers, Enterprise routers, Backbone routers, Gigabit router architecture , VLANs, Firewall/ALGs, and IDS
• Various platforms: Optical Line Terminators, Optical Network Units, HUBs, and LAN/WAN Internetworking
• Routing and Bridging applications
• VoIP: Experience on SIP servers, Gatekeepers, Softswitches, Media Gateways, Media servers, Conference bridges, and VoIP protocol stacks (SIP, H.323, MEGACO, and MGCP), and SIGTRAN.
• Next generation IP technologies: IP over Optical Transport (DWDM and PoS) and GMP( )S



• Protocols:
• IP protocols: TCP/IP protocol suite (IPv4, IPv6, ICMP, and UDP), IP QoS (QoS Routing, RSVP, and Diff-Serv), and MPLS, (LDP)
• IP routing protocols: RIPv1, RIPv2, RIPng, EGP, OSPFv2, BGP-4, BGP-4+, PIMv6, MLD, and IGMP
• IP applications: DNS, FTP, Telnet, TFTP, NAT, GRE, SSH, Radius, and WEBS
• Dynamic access: BOOTP, DHCPv4/v6, and TFTP
• Mobility protocols: Mobility support in IP networks (mobile IP), Mobile Access to IP, and Networks (GPRS and CDPD)Related protocols: PPPoE, L2TP, ISATAP, Radius, TACACS, IP- Sec, IKE, NTP, SNTP, IPX, SNA (SDLC, QLLS, DLS, AppleTalk, XNS, DecNET, and NetBIOS)



• Network management:
• Flex-NM: Aricent's platform-independent EM/NM solution for all network types
• CLI toolkit: Aricent's solution to speed up development of command line interfaces
• Standards: ITU-T, NGOSS, TOM, eTOM, and SID
• Protocols: SNMP, CMIP, TLI, and CORBA
• Frameworks: HP Open View, TeMIP, AdventNet Web NMS, and SolsticeEM
• Adapters: SNMP to Q3, TL1 to Q3, proprietary to Q3, TL1 to CORBA, CORBA to Q, and Mediations/NM