UE Relay Coordination Information Transmission
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Solution Overview
Problem
Conventional interference management in wireless communication networks faces challenges with backhaul links, particularly in dynamic environments, where over-the-air (OTA) signaling for coordination information exchange between nodes can be hindered by frequency fading and signal decay, especially in scenarios with distant or obstructed nodes.
Innovation Solution
The proposed solution involves user equipment (UE) acting as a relay to bounce coordination information between nodes, allowing for the transmission of interference management data via uplink control information, even when direct OTA signaling is impaired, by copying and retransmitting coordination information from one node to another through the UE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backhaul links are used for coordination information exchange between nodes, then interference management can be performed, but network deployment becomes challenging and information exchange may not be fast enough for dynamic interferences
Solution Approach 1:
The patent introduces user equipment (UE) as an intermediary node to relay coordination information between base stations. The UE receives coordination information from one base station and forwards it to another base station, enabling interference management without requiring direct backhaul links between all nodes. This resolves the deployment challenge by using existing UE devices as mediators in the communication path.
2Ease of manufacture
If over-the-air (OTA) signaling is used for coordination information exchange, then network deployment is simplified, but signaling suffers from frequency fading effect and signal strength decay when nodes are far apart or obstacles exist
Solution Approach 1:
The UE acts as a relay that receives coordination information via OTA signaling from one base station and retransmits it to another base station. This intermediary approach allows the system to maintain OTA signaling benefits while overcoming distance and obstacle limitations by using the UE's closer proximity to both base stations as a hopping point for reliable information exchange.
3Adaptability or versatility
If direct OTA signaling is used between distant nodes or nodes with obstacles between them, then signaling can be exchanged without backhaul requirements, but channel conditions become bad and signaling cannot be well exchanged
Solution Approach 1:
The patent employs UE as a mediator that bridges the communication gap between base stations with poor direct channel conditions. The UE receives signals from one base station and forwards them to another, effectively creating a relay path that bypasses the poor direct OTA channel between distant or obstructed base stations, thereby maintaining signaling flexibility while improving exchange quality.
Data Source
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AI summary
Various solutions for coordination information transmission with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive downlink control information comprising coordination information from a first node of a wireless network. The coordination information may comprise interference management information. The UE may copy the coordination information and embed the coordination information in uplink control information. The UE may further transmit the uplink control information to a second node of the wireless network.