UE-to-UE Relay Identification Using Multi-Layer IDs
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Solution Overview
Problem
The challenge in wireless communication systems is to efficiently facilitate communication between source and destination UEs through a relay UE, ensuring accurate identification and data transmission.
Innovation Solution
A method involving a first UE receiving a data unit from a relay UE, decoding identifiers in multiple layers, and the relay UE transmitting data units with combined identifiers to identify the first UE, enabling efficient communication between source and destination UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a relay UE is used to facilitate communication between source and destination UEs, then communication coverage and connectivity are improved, but identification accuracy and data transmission reliability may deteriorate due to multiple identifiers in different layers
Solution Approach 1:
The patent segments the identification process into two distinct layers: a first identifier in a first layer (e.g., MAC layer) and a second identifier in a second layer (e.g., RLC layer). This segmentation allows each identifier to serve a specific function - the first identifier for basic communication routing and the second identifier for accurate destination identification, thereby maintaining reliability while enabling relay communication.
Solution Approach 2:
The patent adds another dimension to the identification system by incorporating identifiers from multiple protocol layers. Instead of relying on a single identifier, the system uses a combination of first and second identifiers from different layers, effectively moving from one-dimensional to multi-dimensional identification space to resolve the reliability issue.
2Measurement precision
If multiple identifiers are included in data units for relay communication, then terminal identification capability is improved, but data unit structure complexity increases
Solution Approach 1:
The patent segments the identifier structure into distinct first and second identifiers, each serving specific identification purposes. The first identifier handles basic routing while the second identifier provides precise destination identification, allowing the system to achieve comprehensive identification capability without creating an undifferentiated mass of identifiers.
Solution Approach 2:
The patent designs the data unit structure to accommodate multiple identifiers that serve multiple functions: the first identifier enables relay selection and basic communication establishment, while the second identifier ensures accurate destination identification. This multi-functionality approach justifies the increased structural complexity by delivering tangible benefits across multiple operational aspects.
3Productivity
If relay UE transmits data units with combined identifiers, then communication efficiency is improved, but processing complexity at receiving UE increases
Solution Approach 1:
The patent segments the processing task into sequential steps: first extracting and processing the first identifier for initial routing decisions, then extracting and processing the second identifier for final destination identification. This segmentation of the processing workflow allows the receiving UE to efficiently handle multiple identifiers without overwhelming complexity.
Solution Approach 2:
The patent implements preliminary action by having the relay UE properly format and position the identifiers in the data unit structure before transmission. The first and second identifiers are arranged in a predetermined sequence and format, which simplifies the receiving UE's processing by eliminating the need for complex search and validation procedures.
Data Source
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AI summary
A method and apparatus for performing communication in a wireless communication system are disclosed. A method performed by a first UE according to an embodiment of the present disclosure may include receiving, from a relay UE, a first data unit; and decoding the first data unit including a first identifier (ID) of a second UE in a first layer and a second ID of the second UE in a second layer, and the second UE related to the first data unit may be identified by the first UE based on a combination of the first ID and the second ID.