Non-Coherent CoMP

Technical Explanation

While coherent multi-point transmission yields theoretical maximum gains, it demands extreme fronthaul synchronization and fiber delay calibration. Non-Coherent CoMP provides robust, high-performance cooperative transmission by combining signal powers across distributed base stations using space-time block coding (STBC) or rate-splitting without requiring carrier phase locking, making it ideal for cost-effective distributed deployments.

Key Functions

• Distributed cooperative transmission without requiring sub-nanosecond phase locking
• Space-time block coding and multi-stream spatial diversity across diverse towers
• Substantial edge-user throughput gains with relaxed fronthaul latency constraints
• High resilience against localized physical link jitter and timing variations
• Simplified hardware requirements for suburban and rural multi-tower cooperation