Base Station Resource Scheduling via Relay Terminal Signaling
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Solution Overview
Problem
In 5G mobile communication, base stations cannot directly schedule resources for user equipment (UE) that act as relays in scenarios where the UE is outside their coverage, limiting D2D communication capabilities.
Innovation Solution
A method where a base station receives a scheduling request from a first terminal within its coverage, which is forwarded by the terminal acting as a relay, and sends scheduled resources through higher layer signaling to the relay terminal, allowing the base station to directly schedule resources for remote UE, independent of the physical layer channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base station uses traditional physical layer signaling for resource scheduling, then the scheduling is fast and efficient, but the base station cannot directly schedule resources for remote user equipment outside its coverage
Solution Approach 1:
The patent introduces higher layer signaling as an intermediary mechanism to enable base station scheduling for remote UE. Instead of relying solely on physical layer signaling which is limited to covered devices, the invention uses higher layer signaling protocols that can traverse through relay nodes, allowing the base station to schedule resources for devices outside its direct coverage area while maintaining centralized control
Solution Approach 2:
The patent transitions from physical layer signaling (lower dimension) to higher layer signaling (higher dimension) to solve the coverage limitation. By moving the scheduling signaling to a higher protocol layer, the system can accommodate relay scenarios and extend scheduling capability beyond the base station's direct coverage while preserving the essential scheduling function
2Productivity
If the terminal outside coverage uses pre-configured resources, then the terminal can communicate without base station scheduling, but scheduling resources cannot be dynamically allocated to the remote terminal
Solution Approach 1:
The relay terminal acts as an intermediary that forwards scheduling requests and receives scheduling decisions from the base station. This intermediary mechanism enables dynamic resource allocation for remote terminals by bridging the communication gap between the base station and devices outside coverage, allowing centralized scheduling without requiring direct physical layer connection
Solution Approach 2:
The system establishes higher layer signaling connections and relay relationships in advance, enabling the base station to receive scheduling requests from remote terminals through relays and allocate resources dynamically. This preliminary setup of signaling paths allows for efficient resource allocation without waiting for ad-hoc connection establishment
Data Source
AI summary
A method for resource scheduling and related products are provided according to implementations of the present disclosure. The method includes the following. A base station receives a scheduling request from a first terminal through higher layer signaling, where the scheduling request is sent by a second terminal to the first terminal, the first terminal is within coverage of the base station, and the second terminal is outside the coverage of the base station. The base station sends a scheduled resource through the higher layer signaling to the first terminal according to the scheduling request, where the scheduled resource is forwarded by the first terminal to the second terminal. By adopting the implementations of the present disclosure, an objective can be achieved that the base station directly schedules wireless resources configuration for the terminal outside the coverage of the base station in the relay scenario.