Processing Gap Request and Error Reporting for 5G Positioning
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in efficiently managing processing gaps for accurate positioning reference signal (PRS) measurements, leading to potential measurement errors and reduced accuracy due to inadequate processing gap configurations.
Innovation Solution
User equipment (UE) and network entities communicate to request and configure processing gaps, allowing UE to specify desired configurations and report errors, enabling the selection of suitable processing gap parameters such as timing, frequency, and periodicity to ensure accurate PRS measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If processing gap configuration is not properly managed, then positioning accuracy deteriorates, but implementing complex configuration mechanisms increases system complexity
Solution Approach 1:
The patent implements a feedback mechanism where the UE sends PG messages to the network entity to report processing gap status and measurement results. The network entity receives these feedback messages and adjusts the processing gap configuration accordingly, creating a closed-loop system that automatically optimizes positioning accuracy without requiring complex manual configuration.
Solution Approach 2:
The patent dynamically adjusts processing gap parameters (timing, frequency, periodicity) based on measurement conditions and network status. The UE can request different processing gap configurations and the network can modify existing configurations in response to feedback, allowing the system to adapt to varying requirements and optimize positioning accuracy under different operating conditions.
2Measurement precision
If processing gap timing is optimized for accuracy, then measurement precision improves, but latency increases due to additional processing time
Solution Approach 1:
The patent implements dynamic processing gap timing where the gap duration and scheduling can be adjusted in real-time based on network conditions and measurement requirements. The system can shorten processing gaps when network conditions permit to reduce latency, while extending them when higher accuracy is required, creating a flexible timing mechanism that balances both objectives.
Solution Approach 2:
The patent employs periodic processing gap configurations where measurements are performed at regular intervals rather than continuously. This periodic approach allows the system to achieve accurate measurements at critical moments while minimizing overall processing time and latency between measurements.
3Adaptability or versatility
If multiple processing gap configurations are supported, then adaptability improves, but message processing complexity increases
Solution Approach 1:
The patent segments the processing gap configuration into distinct parameters (timing, frequency, periodicity, offset) that can be independently adjusted and controlled. The PG messages are structured to handle these parameters separately, allowing the UE to request specific configuration modifications without requiring complete reconfiguration, thereby reducing processing complexity while maintaining flexibility.
Solution Approach 2:
The patent implements preliminary configuration where the UE can pre-specify preferred processing gap parameters in PG requests, and the network can prepare appropriate configurations in advance. This preliminary action allows for more efficient message processing by reducing the need for complex real-time calculations and enabling faster configuration adjustments.
Data Source
AI summary
A positioning method includes: transmitting, from a UE to a network entity, a first PG message including a first PG request for a first PG configuration; and transmitting a second PG message from the UE to the network entity in response to lack of an acceptable response to the first PG message being received by the UE, the second PG message including a second PG request, or a PG error message, or a combination thereof, wherein the second PG request indicates a second PG configuration that is different from the first PG configuration, or an acceptance/rejection indication for a proposed PG configuration received by the UE, or a combination thereof, and wherein the PG error message indicates that no PG configuration message was received by the UE or that the proposed PG configuration was deficient.