Sidelink Beam Resource Selection for Out-of-Coverage Direction Finding
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Solution Overview
Problem
Existing wireless communication technologies struggle to effectively determine the direction between two User Equipments (UEs) that are out of network coverage, particularly in 5G New Radio (NR) wireless systems, as current methods do not adequately support ranging-based applications for distance and direction determination.
Innovation Solution
A method for sidelink (SL) communication between UEs out of network coverage, involving the use of preconfigured resource sets and beam management parameters to establish directional transmission beams, allowing UEs to determine the quality of service and select appropriate resource sets for improved direction determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam management parameters are configured for directional transmission, then direction determination capability is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by preconfiguring multiple resource sets with beam management parameters before the UE needs to determine direction. The network provides these resource sets in advance, containing beam management parameters that the UE can directly use when out of coverage, eliminating the need for complex real-time configuration and reducing device complexity while maintaining direction determination accuracy
Solution Approach 2:
The patent segments the beam management configuration into multiple distinct resource sets, each containing specific beam management parameters for different directional scenarios. This segmentation allows the UE to select appropriate preconfigured resource sets based on current conditions, simplifying the overall system by breaking down the complex beam management into manageable, pre-prepared components
2Reliability
If multiple resource sets with beam management parameters are preconfigured, then direction determination reliability is improved, but memory requirements and configuration overhead increase
Solution Approach 1:
The patent makes the preconfigured resource sets universal by designing them to be applicable to multiple different directional determination scenarios. Each resource set contains beam management parameters that can be reused across various situations, allowing a smaller number of multi-functional resource sets to replace what would otherwise require many scenario-specific configurations, thus reducing overall configuration data volume while maintaining reliability
Solution Approach 2:
The patent employs parameter changes by allowing the network to dynamically adjust beam management parameters within preconfigured resource sets based on different service requirements and channel conditions. This enables the same resource set structure to adapt to varying scenarios through parameter modification rather than requiring completely separate configurations for each scenario, reducing configuration overhead
Data Source
AI summary
A method by a User Equipment (UE) for sidelink (SL) communication with another UE is disclosed. The method comprises establishing a first SL connection from the UE to the another UE using a first resource set of a plurality of resource sets stored in the UE, the first resource set including an identifier of the first resource set, parameters for configuring a first Vehicle to Everything (V2X) Resource Pool, and Beam Management parameters associated with the first V2X Resource Pool for enabling a first set of directional transmission beams; receiving, by the UE from the another UE, a Quality of Service value associated with a first beam used for establishing the first SL connection; and determining whether to select a second resource set of the plurality of resource sets to establish a second SL connection from the UE to the another UE.