User Equipment Synchronization Signal Measurement Mapping
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Solution Overview
Problem
Current user equipment (UE) experiences complexity and increased power consumption when measuring synchronization signaling of neighboring cells, as it often requires performing frequency raster operations, which can impact ongoing operations and efficiency in wireless communication.
Innovation Solution
A method where UE measures synchronization signaling of a first cell using a set of parametrisations determined based on a mapping from the signaling parametrisation of a second cell, reducing the need for frequent frequency raster scans and lowering the complexity and power consumption for synchronization signal acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequency raster operations are performed to measure neighboring cell synchronization signaling, then cell detection capability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent applies preliminary action by pre-determining a set of candidate parametrisations for synchronization signals before actual measurement. Instead of performing exhaustive frequency raster operations, the UE uses previously acquired information about synchronization signal parametrisations to narrow down the search space to a limited set of candidate frequencies and parameters, significantly reducing measurement complexity while maintaining detection capability
Solution Approach 2:
The patent applies parameter changes by transitioning from a brute-force approach (scanning all possible frequencies) to a targeted approach (testing specific candidate parametrisations). The UE changes the measurement strategy by utilizing known parameters such as synchronization signal block (SSB) frequency locations, subcarrier spacing, and cyclic prefix lengths to define a reduced set of candidate parametrisations, thereby reducing device complexity while preserving measurement accuracy
2Measurement precision
If frequency raster operations are performed to measure neighboring cell synchronization signaling, then cell detection capability is improved, but power consumption increases
Solution Approach 1:
The patent reduces power consumption by performing preliminary determination of candidate parametrisations. The UE uses previously acquired network information, system information blocks (SIBs), and configured parameters to pre-identify likely synchronization signal locations and characteristics, avoiding the need to perform power-intensive frequency raster operations across the entire spectrum
Solution Approach 2:
The patent changes the measurement parameters from an exhaustive search approach to a targeted candidate-based approach. By utilizing known parameters such as SSB periodicity, frequency offsets, and cell-specific configurations, the UE limits measurements to a small set of candidate parametrisations, dramatically reducing the energy required for synchronization signal detection while maintaining reliable cell detection capability
3Measurement precision
If comprehensive parametrisation sets are used for measuring first cell synchronization signaling, then measurement accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies local quality by tailoring the parametrisation set specifically to the first cell being measured, rather than using a universal comprehensive set for all cells. The UE determines candidate parametrisations based on local characteristics such as the first cell's synchronization signal block frequency, subcarrier spacing configuration, and cyclic prefix type, reducing processing complexity while maintaining measurement accuracy for that specific cell
Solution Approach 2:
The patent changes the approach from using a fixed comprehensive parametrisation set to dynamically selecting candidate parametrisations based on measured or configured parameters. The UE adjusts the parametrisation candidates according to the specific cell's characteristics, such as modifying the frequency range based on SSB location or adjusting time synchronization based on detected frame structures, thereby reducing processing complexity while preserving measurement accuracy
Data Source
AI summary
The disclosure pertains to a method for operating a user equipment in a radio access network. The method includes measuring first synchronisation signaling associated to a first cell of the radio access network, wherein for measuring a set of parametrisations of the first synchronisation signaling is utilised, in which the set of parametrisations is determined based on a signaling parametrisation of second synchronisation signaling associated to a second cell of the radio access network, and further based on a mapping of the signaling parametrization to the first set of parametrisations. The disclosure also pertains to related methods and devices.