Wireless Solutions & Wireless Software Source Code
Trillium Wireless software source code solutions enable telecom equipment manufacturers to build a complete suite of wireless communication devices and wireless solutions- from core network elements to mobile terminals - for Third Generation (3G), General Packet Radio Service (GPRS, 2.5G), and Second Generation (2G) digital wireless network solutions.
Trillium-Powered Wireless Network Elements
- 3G & GPRS Mobile Terminals
- 3G Node B
- 3G Radio Network Controller (RNC)
- Base Station Controller (BSC)
- Base Transceiver Station (BTS)
- Call Session Control Function (CSCF)
- Charging Gateway Function (CGF)
- Gateway GPRS Support Node (GGSN)
- Home Location Register (HLR)
- Mobile Switching Center (MSC)
- Serving GPRS Support Node (SGSN)
- Visiting Location Register (VLR)
Background
The rapid and efficient deployment of new wireless data and Internet services has emerged as a critical priority for telecommunications carriers. Network elements that enable wireless multimedia services are recognized as fundamental to the next-generation network infrastructure. Audio, video and data applications are converging to the point at which users of data and multimedia are demanding anytime, anywhere services for business and personal use.
2G Wireless mobile networks were based on low-band digital data signaling yet were a significant improvement over previous analog networks. The success of 2G data transmission, however, was hindered by the data rates available in deployed GSM networks (9.6Kbps). The "2.5G" GPRS standard, with its higher data rates (up to 384Kbps), eliminates this problem and has becomes a driver for high-speed mobile data services.
Today, an increasing number of operators are upgrading their networks to support GPRS, which is used in GSM networks in Europe and many other countries as well as in IS-136 networks in North America, all of which both are based on the Time Division Multiple Access (TDMA) technology. GPRS is considered a critical step toward 3G Wireless services.
Looking to the future, telecommunications carriers are embracing global 3G Wireless standards to address rising customer demands for new services. 3G Wireless represents a shift from voice-centric to multimedia services that integrate voice, data, video (such as video telephony), and fax.
3G Wireless Solutions
Trillium 3G Wireless protocol solutions consist of high-performance wireless software source code to implement the complex signaling protocols required in 3G multimedia networks. Trillium 3G Wireless communications software source code is compliant with 3G standards developed by the Third Generation Partnership Project (3GPP), a consortium of international organizations. Continuous Computing actively participates in these and other related standards bodies. Through a focus on high performance, standards compliance, and interoperability Trillium 3G wireless protocol source code software has enjoyed significant success in supporting TEMs building of 3G wireless solutions.
Continuous Computing offers 3G portable software products including:
Trillium 3G Wireless Protocols
- ALCAP - AAL2 Signaling
- CAP - CAMEL Application Part
- FP - Framing Protocol
- GMM/SM - GPRS Mobility Management and Session Management
- GTP - GPRS Tunneling Protocol
- Iu UP
- MAC 3G - 3G Media Access Control
- MAP 3G - 3G Mobile Application Part
- NBAP - Node B Application Part
- PDCP - Packet Data Convergence Protocol
- RANAP - Radio Access Network Application Part
- RLC 3G - 3G Radio Link Control
- RNSAP - Radio Network Subsystem Application Part
- RRC - Radio Resource Control
- SIGTRAN (M3UA, SUA, SCTP)
3G Network Architecture
2.5G Wireless (GPRS)
Continuous Computing offers a comprehensive protocol software solution that encompasses all the new components of the GPRS network. Trillium GPRS can be interfaced with the existing Public-Switched Telephone Network (PSTN) infrastructure. Furthermore, Trillium GPRS software inter-works with Trillium MAP-GSM Phase 2+ software so that existing GSM systems can be easily upgraded to support GPRS services.
Trillium 2.5G Wireless Protocols
- BSSGP - Base Station System GPRS Protocol
- CAP - CAMEL Application Part
- GMM/SM - GPRS Mobility Management and Session Management
- GTP - GPRS Tunneling Protocol
- LLC - Logical Link Control
- MAP 3G - 3G Mobile Application Part
- NS - GPRS Network Service
- RLC/MAC - GPRS Radio Link Control / Medium Access Control
- SNDCP - SubNetwork-Dependent Convergence Protocol
GPRS Stack Diagram
GPRS Network Architecture
The following is a brief description of each protocol layer in the GPRS network infrastructure:
- Base Station GPRS Protocol (BSSGP)
Processes routing and quality of service (QoS) information for the BSS. BSSGP uses the Frame Relay Q.922 core protocol as its transport mechanism. - BSSAP+
Protocol that enables paging for voice connections from MSC via SGSN, thus optimizing paging for mobile subscribers. BSSAP+ is also responsible for location and routing updates as well as mobile station alerting. - Camel Application Part (CAP)
Provides mechanisms to support operator services beyond standard GSM services for subscriber roaming within our outside the HPLMN. Furthermore, CAP extends the IN framework to GSM network for implementing IN services. - GPRS Mobility Management (GMM/SM)
Protocol that operates in the signaling plane of GPRS, handles mobility issues such as roaming, authentication, selection of encryption algorithms and maintains PDP context. - GPRS Tunnel Protocol (GTP)
Protocol that tunnels the protocol data units through the IP backbone by adding routing information. GTP operates on top of TCP/UDP over IP. - Logical Link Control (LLC)
A data link layer protocol for GPRS that functions similarly to Link Access Protocol-D (LAPD). This layer assures the reliable transfer of user data across a wireless network. - Mobile Application Part (MAP)
Supports signaling between SGSN/GGSN and HLR/AuC/EIR. - Network Service
Protocol that manages the convergence sub-layer that operates between BSSGP and the Frame Relay Q.922 Core by mapping BSSGP's service requests to the appropriate Frame Relay services. - SCCP, MTP3, MTP2
Protocols used to support Mobile Application Part (MAP) and BSSAP+ in circuit-switched PLMNs. - Sub-Network Dependent Convergence Protocol (SNDCP)
Protocol that maps a network-level protocol, such as IP or X.25, to the underlying logical link control. SNDCP also provided other functions such as compression, segmentation and multiplexing of network-layer messages to a single virtual connection.
