With the growing popularity of applications such as extended reality (XR), 4K live broadcasting, and immersive metaverse experiences, single user equipment (UE) faces inherent limitations in power, spectrum, and channel capacity. UE Aggregation offers a compelling solution by enabling Remote UEs to collaborate with nearby Relay UEs. Relay UEs can contribute their spare resources to enhance the uplink performance of Remote UEs, effectively breaking through the bottlenecks of single-device capabilities.
UE Aggregation integrates three key dimensions of cooperation to create a robust and efficient uplink transmission chain:
- Power Aggregation: The Relay UEs assist with signal forwarding, improving uplink connectivity in areas with weak coverage.
- Bandwidth Aggregation: Relay UEs share their unused spectrum resources, boosting the Remote UE's uplink throughput.
- Channel Aggregation: Remote and Relay UEs simultaneously establish independent communication links, enabling multi-path transmission and enhancing reliability and redundancy.
Performance was evaluated based on wireless uplink throughput and real-time 4K video streaming from mobile devices, achieving following results:
- Uplink speeds for edge users improved by up to three times with UE Aggregation enabled.
- Without aggregation, uplink throughput is insufficient for stable 4K live streaming, resulting in frequent stuttering and frame drops.
- When aggregation was activated, uplink can support smooth and high-quality 4K live streaming with consistent quality and no noticeable frame loss.
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Source: ZTE Corporation
Reporter: PR Wire
Editor: PR Wire
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