Layer 2 Relay Unicast Link Setup via Service Codes
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently setting up and managing Layer 2 relay unicast links, particularly in scenarios where relay user equipment (UE) performance and resource utilization are impacted by the provision of Layer 2′ relay services.
Innovation Solution
The method involves a remote UE requesting a Layer 2 relay service and relay service code, with the relay UE selectively accepting or rejecting based on the code, and establishing a radio access signaling radio bearer (SRB) using a remote UE radio access SRB configuration, allowing for controlled configuration and utilization of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay UE accepts all Layer 2 relay service requests, then network coverage and connectivity are improved, but relay UE performance and resource utilization deteriorate
Solution Approach 1:
The patent introduces relay service codes as a parameter to differentiate and prioritize various relay service requests. By assigning different codes to different service types or priority levels, the relay UE can selectively accept or reject requests based on the code, thereby managing its resource allocation and performance while maintaining necessary network connectivity.
2Productivity
If relay UE selectively accepts Layer 2 relay service requests, then relay UE resource utilization is improved, but service availability may worsen
Solution Approach 1:
The relay service code serves as a configurable parameter that enables the relay UE to make selective acceptance decisions without reducing overall service availability. Different codes can represent different service categories, priority levels, or resource requirements, allowing the relay UE to maintain versatility in service support while optimizing resource utilization through selective acceptance based on current conditions.
3Adaptability or versatility
If SRB configuration is established for each Layer 2 relay service, then service specificity is improved, but device complexity increases
Solution Approach 1:
The patent uses relay service codes as a compact parameter to identify and differentiate various Layer 2 relay services. Instead of creating completely separate configuration structures for each service, the service code serves as a key that can map to configuration parameters, allowing specific service configuration while avoiding the complexity of managing entirely separate configuration sets for every service type.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a remote user equipment (UE) may transmit, to a relay UE, a request for a Layer 2 relay service and a relay service code associated with the Layer 2 relay service; receive, from the relay UE, a message indicating that the relay UE accepts the Layer 2 relay service associated with the relay service code; establish a radio access signaling radio bearer (SRB) for the Layer 2 relay service using a remote UE radio access SRB configuration; and communicate via the radio access SRB. Numerous other aspects are provided.