5G Beamforming Types- Eigen based Vs Grid of beams

5G Beamforming Types- Eigen based Vs Grid of beams

This video covers a high-level view about 5G Beamforming types:

  • Eigen-Based Beamforming (EBB): Dynamically updates beamforming weights to track UE movement. Suitable for TDD, leveraging channel reciprocity and SRS-based uplink measurements to derive downlink weights. Requires high baseband processing to track UEs in real-time.
  • Grid of Beams (GoB): Uses a fixed set of beam positions, switching between predefined beams based on UE feedback. Suitable for both FDD and TDD, requiring less baseband processing than EBB.

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5G HARQ Explained: Soft Combining, HARQ Processes, ACK/NACK Timing, Codebook Types, Spatial Bundling, and 4G vs 5G Differences (Article)

5G HARQ Explained: Soft Combining, HARQ Processes, ACK/NACK Timing, Codebook Types, Spatial Bundling, and 4G vs 5G Differences (Article)

Introduction * HARQ is one of the most important reliability mechanisms in the 5G MAC layer. It directly affects retransmission speed, uplink control overhead, latency, and overall scheduling efficiency. * In simple words, HARQ gives 5G a fast retransmission loop. It helps recover transmission errors much faster than higher-layer recovery, which is

By Mohamed ELAdawi