The following functions now support virtual cell identities and alternative scrambling, enabling modeling of uplink Release 11 Coordinated Multipoint (CoMP) scenarios with the LTE System Toolbox™:
lteCellSearch now enables
Detect multiple cells
Perform post-FFT-based SSS detection
Compare the strength of detected cells
The following feature examples show the cell search enhancements:
Reference Signal Measurements (RSRP,RSSI,RSRQ) for Cell Reselection determines the quality of the detected cells. The cell reselection test environment, described in TS 36.133 Annex A.18.104.22.168, is configured in this example.
Cell Search, MIB and SIB1 Recovery fully synchronizes, demodulates and decodes live eNodeB signal.
Time Difference Of Arrival Positioning Using PRS calculates the position of a User Equipment (UE) within a network of eNodeBs via the Time Difference Of Arrival (TDOA) positioning approach in conjunction with the Release 9 Positioning Reference Signal (PRS).
Uplink waveform generator control of the bandwidth associated with each RMC
Downlink waveform generator control of the DCI format, the PDCCH format, and PDCCH power. OCNG generation for PDSCH and PDCCH, has been enhanced as follows:
New parameters to enable or disable the PDSCH and PDCCH OCNG
OCNG power control
Control over the RNTI of the PDSCH OCNG, modulation scheme, and the transmission scheme
The PDCCH Conformance Test feature example demonstrates some of the enhanced waveform generation controls.
This interface is provided for backwards compatibility. It will now result in runtime errors indicating which new functions to use.
Previous versions of the LTE System Toolbox product contained a different set of function names. The term Obsolete LTE Toolbox interface refers to these previous versions, prior to version 1.0. If you wrote scripts using any of the old function names used in previous versions, you should modify the scripts to use the new function names. Also, you should modify many of the scripts to expect column vectors for output arguments where row vectors were previously returned.
This release adds UMTS (W-CDMA, HSPA and HSPA+) waveform generation
Additionally reference channel functions,
are provided so that you can readily produce a configuration structure
initialized to define RMC, FRC H-Set and test models defined in 3GPP
standards. The reference channel function output configuration structure
serves as input to the associated waveform generation function.
This release features an example demonstrating CoMP dynamic interference mitigation cooperation between multiple base stations.
This release enables you to generate LTE waveforms carrying
SIB1 message using the
This release adds and/or enhances several examples
R2014b adds support for the creation of Release 11 compliant
enhanced physical downlink control channel (EPDCCH) transmissions.
For details, see the command line help for
you to generate the associated demodulation reference signals (DM-RS).
R2014b adds support for adaptive modulation and coding scheme
channel quality indicator (CQI) estimation,
rank indicator (RI) estimation, and
a lookup between MCS values and the corresponding transport block
size (TBS) and modulation order.
R2014b adds support for extracting physical channel symbols
and signals from a resource grid. For details, see the command line
The LTE System Toolbox product provides standard-compliant functions and tools for the design, simulation, and verification of long-term evolution (LTE) and LTE-Advanced communications systems. LTE-Advanced comprises changes made to releases 9 and 10 of the LTE Standard.
The LTE System Toolbox product provides standard-compliant functions for end-to-end physical layer transmit and receive processing. These functions include OFDM modulation for downlink and SC-FDMA modulation for uplink.
The LTE System Toolbox product provides standard-compliant functions for multiple-input, multiple-output (MIMO) antenna transmission and user equipment (UE)-specific beamforming.
The LTE System Toolbox product provides standard-compliant MIMO receiver functions for synchronization, channel estimation, equalization, and signal recovery procedures.
The LTE System Toolbox product provides standard-compliant functions for modeling propagation channels. These functions include models for MIMO fading channel, EPA, EVA, and ETU, moving propagation channel, and high-speed train MIMO channel.
The LTE System Toolbox product provides standard-compliant functions and tools for generating E-UTRA test models (E-TM) and reference measurement channel (RMC) waveforms.
The LTE System Toolbox product provides interactive tools for conformance and BER testing. You can create and reuse a conformance test bench to verify that your designs, prototypes, and implementations comply with the LTE standard.
The LTE System Toolbox product provides for the recovery of low-level parameters, such as cell identity.
This release adds the following four new apps to the MATLAB® apps gallery.
LTE Downlink RMC Generator —
used for selection of parameters for and generation of downlink reference
measurement channel (RMC) waveforms. For more information, see
LTE Uplink RMC Generator —
used for selection of parameters for and generation of uplink reference
measurement channel (RMC) waveforms. For more information, see
LTE Test Model Generator —
used for selection of parameters for and generation of E-UTRA test
model (E-TM) waveforms. For more information, see
LTE Throughput Analyzer —
used to perform the PDSCH demodulation performance test and plot throughput
performance graphs. For more information, see
Previous versions of the LTE System Toolbox product used different function names. In version 1.0, the LTE System Toolbox product contains an entirely new set of function names. Also, many functions in previous versions of the LTE System Toolbox product returned row vectors for output arguments. In version 1.0, many of the new equivalent functions return column vectors for output arguments.
If you wrote scripts using any of the old function names used in previous versions, you must modify the scripts to use the new function names in the LTE System Toolbox product, version 1.0. Also, you must modify many of the scripts to expect column vectors for output arguments where row vectors were previously returned. Refer to the following table for a mapping of the previous function names to their new equivalent function names.
In R2014a, by default, all the functions listed in the Previous Function Name column are on the MATLAB path.
To remove these functions from the path, call the
To add these functions to the path again, call the
|Previous Function Name||New Function Name|
Removed. Use the MATLAB