Synopsys has been producing end-to end physical layer baseband simulation models of second and third generation wireless standards for quite some time. Synopsys continues to track the evolving standards and uses information from the standards committees to build the system- level models. The models, in turn, provide a framework and a testbench for users interested in hardware and/or software implementation.

Available Libraries

• Communications Library
• LTE Library
• LTE Library for Xilinx IP
• WCDMA (3GPP) Library
• TD-SCDMA Library
• GSM/GPRS/EDGE Library
• WiMAX Library
• CDMA2000 (3GPP2) Library
• WLAN/WPAN Library

The SPW Basic Communications Library is a pre-built collection of commonly used communication functions, including basic capabilities like modulators, demodulators, adaptive equalizers, wireless channel models and other blocks created to take advantage of the latest wireless technologies. Demonstration systems (e.g. DVB-T and IS54 for TDMA) and a rich selection of channel models (e.g. the Saleh and Rappaport indoor radio channels, the Rayleigh flat and selective fading channels, and the Rummler Multipath channel) are included in this library. Also included are functions for radar, RF, and smart antenna systems.

Helps You Utilize Emerging Technologies
The Communications Library contains modulators and demodulators, adaptive equalizers, wireless channel models and other blocks created to take advantage of the latest wireless technologies. These blocks are ideal for designing personal communications systems and networks, mobile communications systems, satellite systems, radar system, and other indoor and outdoor wireless systems. Two digital cellular demonstration systems (TDMA and CDMA) are provided, which you can use as tutorials or as starting places for your own designs. The TDMA system is based on the IS-54 digital cellular standard for the United States. The CDMA system implements full PN sequence acquisition and tracking using orthogonal Walsh codes. DVB-T demo system based on OFDM is also provided with a practical channel estimation model included.

Offers a Wide Selection of Channel Models
Renowned for their accuracy, the sixteen channel blocks of the SPW Communications Library reveal how transmitter and receiver proximity and environment can influence signal quality. Particularly useful are the Saleh and Rappaport indoor radio channels, the Rayleigh flat and selective fading channels, and the Multipath (Rummler) channel. Custom channels can be modeled with the Sparse FIR filter block. This block allows you to implement time varying and time-invariant models based on calculateddata, measured data or statistics. Constant or dynamic tap coefficients and tap spacing can be specified from a file or generated statistically. The channel models also include special timing drift (clock skew) blocks for more true-to-life simulations. These blocks accurately model synchronization discrepancies between transmitter and receiver clocks by producing an output which slowly drifts from the input signal. Faster timing disparities can be simulated via the jitter input of a timing drift block.

SPW LTE Reference Library
The LTE standard is rapidly evolving as the next-generation, high-speed standard for packet-based internet access as well as for voice over IP. The Synopsys LTE library assists in the design of physical layer implementations as well as exploration of overall network performance and as such can be used by network operators, handset and base station OEMs as well as semiconductor manufacturers. Synopsys LTE Library offers the designer a faster way to market with improved opportunity for first time success. The library enables a design team to quickly build complete system models. Appropriate portions of the system model can be refined to generate RTL and the testbench can be shared with other team members. The LTE library supports downlink, uplink and cell search models. It also contains specific channel models that are specified in the standard. All models support the full range of MIMO configurations as defined in the standard and can be extended easily to experiment with other configurations by the user. Synopsys continues to update the library as the standard evolves.

Higlights

• End-to-end physical layer (baseband) simulation model
• Supports the design of 3GPP LTE standard-based products
• Provides several LTE system test benches for throughput analysis
• Conforms to current standards for 3GPP LTE
• Includes fixed-point algorithmic design capture and datapath performance analysis
• Provides all models in hierarchical block diagrams with underlying leaf level blocks in C-source code.
• Enables export of LTE blocks into Platform Architect PHY/MAC cross-layer joint optimization and verification
• Programmable Accelerators designed with Processor Designer can be integrated into LTE reference test benches for component level verification

SPW Library for Xilinx LTE IP
Xilinx provides IP components that allow base station manufacturers to reduce implementation time for LTE systems implemented on Xilinx programmable devices. The implementation of these IP components is optimized for device performance such as power consumption and resource utilization.

Xilinx also provides bit-accurate C reference models that can be used for IP optimization and system verification by users integrating the Xilinx LTE IP models within their design. Using the prepackaged models from the SPW Library for Xilinx LTE IP library allows for easy integration into the LTE Reference Library, which is sold as a separate option. This allows users to evaluate the system throughput using the Xilinx IP in conjunction with their own LTE IP and algorithms.

Code-division multiple access, or CDMA, technology is the foundation for many modern wireless communications systems.

WCDMA Library
To assist engineers designing Wideband CDMA (WCDMA) systems, Synopsys has developed a WCDMA library for SPW . Use of the WCDMA library expedites your design of WCDMA systems by facilitating algorithmic exploration and shortening development and design verification times,increasing your chance of first-time design success. You can combine WCDMA library models with other SPW models. For example, by combining WCDMA models with models from SPW’s multimedia library, a designer can quickly build advanced 3G wireless designs which include multimedia (video) features.

Highlights

• Supports the design of 3GPP Wideband CDMA (WCDMA) products
• Includes a rich set of models of fundamental CDMA functions such as sequence generation, spreading and despreading operations
• Provides several CDMA and WCDMA system testbenches
• Includes fixed-point algorithmic design capture and datapath performance analysis
• Conforms to current standards for 3GPP WCDMA
• Accelerates complete design of a 3G wireless personal device when used with optional SPW Libraries such as the WLAN library for IEEE802.11, and Bluetooth Compatible with the SPW Multimedia Library for the development of 3G systems that incorporate imaging/video subsystems such as a digital camera, video compression routines, and/or video display.

The SPW GSM Library provides ten system models along with over 200 GSM specific leaf and hierarchical blocks. Blocks from the SPW Communications library and base DSP libraries are used to complete the models.

The blocks in the GSM Library include many of the fundamental functional blocks needed for modeling the physical layer processing of GSM/GPRS/EDGE systems, including blocks for channel coding, synchronization, framing, modulation, and channel and sequence estimation.

The SPW GSM reference models make extensive use of hierarchy to make them easy to understand. This also makes the models excellent design libraries since it is simple to replace low level blocks with custom implementations and test.

Highlights

• Supports the design of GSM/GPRS/EDGE products.
• Includes a rich set of libraries of fundamental GSM channels such as Half Rate (TCH/HS), Full Rate (TCH/FS), Enhanced Full Rate (TCH/EFS), adaptive Multi-Rate (AMR) Full Rate, and AMR Half Rate, vocoder models, control channels such as BCCH, RACH, SACCH and FACCH.
• Includes GSM Circuit Switched Data (CSD) Channels such as Full Rate (TCH/F14.4, TCH/F9.6, TCH/F4.8, TCH/F2.4), Half Rate (TCH/H4.8, TCH/H2.4), and the Enhanced Circuit Switch Traffic Channel (E-TCH/F28.8, E-TCH/F32.0, E-TCH/F43.2).
• Includes GPRS packet channels with coding schemes from CS-1 to CS-4, and EGPRS packet channels with coding schemes from MCS-1 to MCS-9.
• Includes both GMSK and 8-PSK modulation schemes and supports channels with mixtures of both.
• Conforms to EDGE standards with increased data rates up to 450 kbps with Enhanced Modulation.
• Accelerates complete design of a 2.5G/3G wireless personal device when used with optional SPW libraries such as the WLAN Library for IEEE802.11 and Bluetooth.
• Compatible with the SPW Multimedia Design Kit for the development of 2.5G to 3G systems that incorporate imaging/video subsystems such as a digital camera, video compression, and/or video display.