Full-Duplex Capability Signaling for Wireless Resource Allocation
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Solution Overview
Problem
Current wireless communication systems lack an efficient method for a user equipment (UE) to explicitly indicate supported downlink-uplink physical channel combinations for full-duplex mode, leading to suboptimal resource allocation and potential interference in next-generation radio access technologies.
Innovation Solution
A method where a UE receives a capability enquiry message from a base station, transmits capability information including full-duplex mode support for specific channel combinations, and receives resource allocation information, allowing for efficient allocation of resources based on supported full-duplex mode configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex mode is supported for multiple downlink-uplink channel combinations, then resource allocation efficiency is improved, but device complexity increases due to the need to manage and indicate multiple channel combination capabilities
Solution Approach 1:
The patent segments the full-duplex capability indication into a structured format where each downlink-uplink channel combination is independently indicated with its specific capability status. This segmentation allows the UE to selectively indicate support for specific channel combinations (e.g., PDCCH-PUSCH, PDSCH-PUCCH) rather than requiring a single monolithic capability flag, thereby managing complexity while enabling fine-grained resource allocation efficiency.
Solution Approach 2:
The patent introduces a new parameter structure in the capability information message that changes from traditional binary capability indicators to a detailed enumeration of supported channel combinations. This parameter change enables the network to understand exactly which channel pairs the UE can handle in full-duplex mode, optimizing resource allocation without overwhelming the UE with complex management overhead.
2Reliability
If explicit indication of full-duplex supported channel combinations is implemented, then communication reliability is improved, but message size and signaling overhead increase
Solution Approach 1:
The patent applies partial action by indicating full-duplex capability only for specific downlink-uplink channel combinations where the UE actually supports it, rather than requiring indication for all possible combinations. This selective indication approach ensures communication reliability for supported channels while minimizing signaling overhead by excluding unsupported channel combinations from the capability message.
Solution Approach 2:
The patent performs preliminary action by pre-defining the structure and format of the capability information message before actual resource allocation occurs. This predefined structure allows the UE to efficiently encode its full-duplex capabilities without requiring complex real-time negotiation, thereby reducing signaling overhead while maintaining reliable communication through explicit capability declaration.
Data Source
AI summary
A method of transmitting and receiving a signal by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving, from a base station (BS), a capability enquiry message requesting a capability of the UE, transmitting, to the BS, a capability information message including information on the capability of the UE based on the capability enquiry message, and receiving, from the BS, resource allocation information for resource allocated based on the capability information message. The capability information message includes information indicating whether the UE supports full-duplex (FD) mode for at least one combination of a downlink (DL) channel and an uplink (UL) channel.