The IIS Chip Gallery
Gezora (2022)
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| Application | Communication |
| Technology | 22 |
| Manufacturer | GF |
| Type | Research Project |
| Package | QFN56 |
| Dimensions | 2000μm x 2500μm |
| Gates | 10 MGE |
| Voltage | 0.8 V |
| Clock | 800 MHz |
Gezora implements beamspace channel estimation and 2-stage linear MMSE equalization for millimeter-wave massive multiuser MIMO systems with 64 basestation antennas and up to 16 simultaneously transmitting users. The 2-stage LMMSE receiver simplifies the preprocessing step required to compute the LMMSE filter weights. Beamspace processing enables Gezora to efficiently denoise the channel estimates and to autonomously adapt its dynamic power consumption to the instantaneous channel propagation conditions. The 2x2.5sqmm hardware accelerator is designed to exceed a peak data rate of 60Gb/s while consuming less than 1.5W power.
Gezora, the name of this ASIC, is a monster cuttlefish, first appeared in Space Amoeba continuing the Kaiju tradition started with Garamon.
The chip was manufactured in 22FDX with generous support from GlobalFoundries' University MPW Program.