New 3G LTE RF Channel Fading for Composer
New 3G LTE RF Channel Fading for Composer
12th October , 2009
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Europe : A new LTE RF channel fading option was launched last week for CellMetric’s 3G LTE Composer. The 3G LTE Composer offers a complex RF and protocol sequence generation capabilities which can be used by 3G LTE RF and baseband chip manufacturers can validate their 3G LTS products and solutions over the air.
The 3G LTE Composer has been updated to offer fading channel modeling as specified in TR36.803. Included are MIMO modeling, Doppler capability and spatial correlation. The Composer includes a user defined tap fading model feature for 10 models.
Standard channel fading models included in the Composer option include Extended Pedestrian A Model (EPA), Extended Vehicular A Model (EVA), and Extended Typical Urban Model (ETU).
CellMetric's Modus 6 LTE test solution is compliant with Release 8 of the Third Generation Partnership Project standard (3GPP) and supports both Time Domain Duplex (TDD) and Frequency Domain Duplex (FDD) modes.
CellMetric's Modus 6 LTE base station test signal generator consists of one or more Modus 6 air interface units providing the RF transmission and LTE Composer, a PC based application which generates the protocol and RF transmission scenarios to emulate eNodeB base station transmissions. The combination of the two tools provides a highly flexible, comprehensive and cost effective solution for LTE User Equipment (UE) and handset baseband and RF development and testing.
This capability includes RF channel emulation allowing the signal generator to generate a RF signal as seen either at the output of the base station transmit antennas or at the input of the user equipment's receive antennas. Both transmit and receive Multiple-input Multiple-output (MIMO) antenna configurations can be emulated by using two synchronised Modus 6 air interfaces.
Modus 6 supports LTE RF channel bandwidths of 1.4, 3, 5 and 10 MHz in the band 824 MHz to 2155 MHz that is FDD bands I, II, III, IV, V, VI, VIII, IX and X and TDD bands a, b and c.
The user has complete control over the Physical Downlink Control Channel (PDCCH) with respect to Downlink Control Information (DCI) format types and search space locations. The following physical transport channels, synch signals and reference signal are supported:
* PCFICH Physical Control Format Indicator Channel
* PHICH Physical Hybrid Automatic Repeat Request Indicator Channel
* PDCCH Physical Downlink Control Channel
* PDSCH Physical Downlink Shared Channel
* PBCH Physical Broadcast Channel
* P-SCH Primary Synchronization Channel
* S-SCH Secondary Synchronization Channel
* CRS Cell Specific Reference Symbols
CellMetric's LTE base station test signal generator, comprising the LTE Composer Base Station Emulator software and Modus 6 air interface units, is available now from CellMetric.
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