Testing LTE
Downloads
LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) introduced in 3rd Generation Partnership Project (3GPP) Release 8 in December 2008.
LTE Release 8 Major Parameters
| Access Scheme | UL | DFTS-OFDM |
| DL | OFDMA |
|
| Bandwidth |
1.4, 3, 5, 10, 15, 20MHz |
|
| Minimum TTI |
1msec | |
| Sub-carrier spacing | 15kHz | |
| Cyclic prefix length | Short |
4.7µsec |
| Long | 16.7µsec | |
| Modulation | QPSK, 16QAM, 64QAM | |
| Spatial multiplexing | Single layer for UE Up to 4 layers for DL per UE MU-MIMO supported for UL and DL |
|
LTE-Release 8 User Equipment Categories
| Category | 1 | 2 | 3 | 4 | 5 | |
| Peak rate Mbps | DL | 10 | 50 | 100 | 150 | 300 |
| UL | 5 | 25 | 50 | 50 | 75 | |
| Capability for physical functionalities | ||||||
| RF Bandwidth | 20MHz | |||||
| Modulation | DL | QPSK, 16QAM, 64QAM | ||||
| UL | QPSK, 16QAM | QPSK, 16QAM, 64QAM |
||||
| Multi-antenna | ||||||
| 2 Rx diversity | Assumed performance requirements. | |||||
| 2x2 MIMO | Not Supported |
Mandatory | ||||
| 4x4 MIMO | Not Supported | Mandatory | ||||
The latest release of LTE specifications can be found at http://www.3gpp.org/ftp/Specs/2009-09/Rel-8/36_series/
During development of LTE-based devices, it is important to be able to fully test the TX and RX characteristics. LitePoint has a software LTE analysis package that supports the analysis of a wide range of LTE waveforms captured from virtually any piece of test equipment. LitePoint LTE software supports multiple file formats including: Tektronix .IQT and .TIQ file formats and LitePoint / MATLAB .SIG and .MOD formats.