5G • RAN
Analog Beamforming
RF Phase Shifter Beamforming
Beamforming technique applying phase shifts directly at RF frequencies using analog phase shifters with a single RF chain.
Technical Explanation
In analog beamforming, a single transceiver RF chain is connected to multiple antenna elements via variable analog phase shifters and power amplifiers. It forms one narrow directional beam at a time, making it power-efficient and cost-effective for mmWave (FR2) systems where hardware cost precludes per-element digital transceivers.
Key Functions
- Applies variable phase shifts in analog RF domain using single transceiver chain
- Forms one high-gain directional beam at a time
- Low power consumption and cost-effective for millimeter wave arrays
Specifications
3GPP TS 38.211, TS 38.214
Interfaces
Uu
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