Column Control DTX

Move Forward to What’s Possible in TD-LTE–Design & Test Solutions

Brochures

Third-generation (3G) wireless systems are deployed all over the world. The next step is Long-Term Evolution (LTE) of the 3rd Generation Partnership Project (3GPP) covering emerging needs of “mobile broadband” into the next decade, with cell data rates of over 300 Mbps expected when the system is fully functional.

Following the integration of the Chinese TD SCDMA standard, based on time division duplex (TDD), into the 3GPP specifications, chipset and device designers are now working to include TDD capability for LTE. Now known as TD-LTE, the standard allows carriers to make use of the unpaired spectrum that many of them already own. With the complexity of LTE and the need for backward compatibil­ity with legacy systems come development and test challenges that are new to engineers involved in all aspects of product development—from components to complete systems. In addition to higher data rates, major design criteria for LTE-based networks include low latency (turnaround) from user request to server reply—down from around 100 ms for today’s HSPA networks to a goal of 5 ms.

You take TD-LTE forward. Keysight clears the way

As a world leader in test and measurement solutions, Keysight Technologies, Inc. products provide the data rates and channel bandwidths required early in the TD-LTE product design cycle. We have developed several first-to-market TD-LTE test products to help ensure the success of TD-LTE deploy­ment—from early RF and digital design through conformance testing to network deployment and service assurance.

Keysight is a member of 3GPP and an active contributor to the development of next-generation specifications, including both the FDD and TDD variants of LTE and the concurrent System Architecture Evolution (SAE), which is required to realize full performance potential. We create our product plans based on the knowledge and insight gained from this participation.

Our engineers, experts in test and measurement, have dedicated their careers to understanding the intricacies of evolving technologies such as TD-LTE to provide you with the solutions you need, when you need them. So, as you take TD-LTE forward, Keysight clears the way.

TD-LTE Design Simulation and Integration into Re­al-World Measurements

Baseband Design & Verification

Keysight’s SystemVue is an electronic system-level design and verification environment for baseband PHY architectures and algorithms. SystemVue provides two levels of capa­bility for 3GPP LTE that bring instrument-like compliance to your earliest design efforts. SystemVue’s baseband verification library is a fast, pre-built set of parameterized LTE PHY simulation reference models that provide a “gold standard” to compare against user supplied IP and to generate test vectors at any point within a signal processing chain. SystemVue’s baseband exploration library goes further and opens up the algorithmic source code for each of the key LTE PHY models to help you create and verify LTE PHY algorithms even faster. Both SystemVue libraries support the FDD and TDD modes for LTE and provide both UE and eNodeB models in the DL and UL paths. MIMO precoding and MIMO channel models are also provided for complete link level modelling and receiver design.

RF Design & Verification

Keysight’s 3GPP LTE Wireless Library for advanced design system (ADS) saves valuable design and verification time for RF designers and system integrators, and helps improve raw, uncorrected PHY performance. The 3GPP LTE Wireless Library provides signal processing models and preconfigured simulation setups for use within Keysight’s ADS software. It creates and demodulates spectrally correct test signals that comply with the latest LTE specifications, including MIMO and TDD. This enables early verification of RF hardware performance before committing RFIC and board designs to fabrication, saving costly design turns. Designers can combine live, high-performance RF simulations, base­band simulations and standard-compliant measurements from the real world to measure EVM, PAPR, CCDF, and ACLR performance of RF components.

Combining Design Tools for Real-World Measurements

Keysight’s 3GPP LTE TDD Wireless Library for Keysight SystemVue and ADS works di­rectly with Keysight’s broad portfolio of measurement platforms to provide the first fully coded BER solution for the TDD version of the LTE standard using 2x2 and 4x4 MIMO technology. The solution allows fully coded BER measurements of a device under test, including simulation and real-time emulation of channel impairments for multipath fading in MIMO systems. Connectivity between Keysight’s SystemVue and test equipment, such as signal sources and signal analyzers, helps minimize development risk and costs by identifying problems early in the design and fabrication cycle.

 

TD-LTE Signal Generation and Signal Analysis

The Keysight N7625B Signal Studio for LTE TDD is a powerful, PC-based software appli­cation for creating standards-based TD-LTE signals using Keysight’s N5182A/62A MXG and E4438C ESG vector signal generators, and the N5106A PXB baseband generator and channel emulator. The Signal Studio solution supports the 3GPP LTE Mar-09 stan­dard, offers multichannel capability for PDSCH, PHICH, PCFICH, PBCH, PDCCH, PUSCH, PUCCH, and has the ability to transmit DL and UL signals. The software provides basic capabilities well suited for testing components used in base stations and mobile hand­sets, such as power amplifiers and filters. It also provides advanced receiver test capa­bilities that support transport layer coding, 4x4 MIMO pre-coding and fading.

Keysight 89600 VSA software provides RF and baseband engineers with a compre­hensive set of TD-LTE signal analysis, physical layer testing and troubleshooting tools for LTE transceivers and components. TD-LTE downlink (OFDMA), uplink (SC-FDMA) and MIMO analysis are available in a single option. This VSA software can be used with more than 30 Keysight products, including spectrum and signal analyzers, oscilloscopes and logic analyzers, to make LTE measurements anywhere in the block diagram—from baseband to antenna, on digitized or analog signals. It supports up to 2x2 MIMO analysis in conjunction with Keysight’s X-Series (EXA/MXA/PXA) signal analyzers or VXI-based VSA analyzer and up to 4x4 MIMO analysis with several oscilloscopes.

The 89600 VSA software offers industry-leading performance with EVM of up to –53 dB (hardware dependent) and bandwidths of 1.4 MHz to 20 MHz. It’s capability features up to 4x4 MIMO analysis and advanced uplink and downlink evaluation tools supporting all LTE bandwidths, TDD DL/UL allocation (0-6), special subframe length (0-8) and modu­lation formats and sequences that include BPSK, QPSK, 16 QAM, 64 QAM, CAZAC, OS and PRS. It also has connectivity with Keysight’s ADS TD-LTE wireless library for mixed simulation and real-world measurement early in the design process. 

×

Please have a salesperson contact me.

*Indicates required field

Preferred method of communication? *Required Field
Preferred method of communication? Change email?
Preferred method of communication?

By clicking the button, you are providing Keysight with your personal data. See the Keysight Privacy Statement for information on how we use this data.

Thank you.

A sales representative will contact you soon.

Column Control DTX