The UE feedback definition has been also extended in LTE Advanced to account for the dual-codebook structure. When operating in a cell with 8-transmit antenna configuration, the LTE-Advanced UEs are required to include in the feedback information the PMI corresponding to both and . When only ...
LTE MIMO: introductionMIMO is basically an antenna technology as it utilises a number of antennas to provide the performance improvements.The basic concept of MIMO utilises the multipath signal propagation that is present in all terrestrial communications. Rather than providing interference, these paths...
traditionalrecep—tionalgorithmsforLTEdownlinkMIMOtechnology.Thisalgorithmmakesadjustmentsontraditionaldetectionsequenceoforderedsuccessiveinterferencecancellation(OSIC)algorithm,andadoptshybridsequencedetection.Firstitdetectstheweakestsignallayerinreverseorder,traversesthesinglelayeraccordingtotheconceptoftraversalsearch;thenit...
We describe the implementation concept and first results on over-the-air transmission with a single user set-up occupying 20 MHz bandwidth and achieving more than 150 Mbit/s gross data rate in the 2x2 MIMO down-link and more than 50 Mbit/s in the single transmit antenna up-link. The ...
Fig. 22 depicts the concept of M-MIMO where an array of antennas is situated in BS and serves multi users simultaneously. Table 10 summarized a literature survey on M-MIMO techniques and Table 11 provides a comparison between MIMO and massive MIMO considering energy saving prospect. Sign in ...
Hence, MIMO has been used in downlink transmission as a must-option in LTE system. 因此,该技术在LTE标准中被列为必选项,并在下行链路上得以使用。 www.fabiao.net 5. Although some old radar systems can be attributed to the domain of MIMO radar, but the concept of the MIMO radar still has ...
An excessive overhead may result if, as done in LTE, codebook-based beamforming with cell-specific reference signals is employed with a large number of antennas. Therefore, extended UE-specific reference signals need to be considered for LTE-Advanced. 4.2.1 Advanced precoding Under the concept ...
Massive MIMOis a multi-user MIMO technique that can supply wireless terminals in high-mobility scenarios with consistently good service. The essential concept is to equip base stations with multiple antenna arrays that can simultaneously serve several terminals in the same time-frequency resource. Insta...
MIMOWAVES as a group is capable of handling the entire development cycle from concept and prototype development to product roll out and manufacturing. MIMOWAVES offers 4G 3gpp LTE physical layer, LTE Stack with MAC, RLC, PDCP, RRC, WiMAX, WLAN/WiFi and ZigBee digital software modem for DSP...
Spatial multiplexing, a MIMO technique for multiple signal transmission, was proposed by Arogyaswami Paulraj and Thomas Kailath in 1993, and their 1994 patent emphasized wireless broadcast application. The multiple antenna concept was explored in 1996. In 1998, Bell Laboratories was the first to ...