Low-Layer Measurement Reporting for Low-Latency 5G Positioning
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Solution Overview
Problem
Existing 5G wireless communication systems face challenges in efficiently transmitting accurate location estimates due to high latency and inflexible lower-layer message payloads, which hinder precise positioning of user equipment.
Innovation Solution
Implementing techniques for encoding measurement reports using Abstract Syntax Notation One (ASN.1) encoding and lower-layer protocols, such as physical-layer or MAC-layer protocols, to facilitate the transmission of measurement information, allowing for flexible message sizes and reduced latency by avoiding higher protocol stack processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If higher-layer protocol stack processing is used for measurement report transmission, then message format flexibility is improved, but latency increases
Solution Approach 1:
The patent segments the measurement report transmission process by separating the payload encoding from the higher-layer protocol processing. The measurement report payload is encoded using ASN.1 and transmitted via lower-layer protocols (physical layer or MAC layer), while higher-layer protocols handle other control functions. This segmentation allows the measurement report to bypass the higher-layer protocol stack, reducing latency while maintaining format flexibility through ASN.1 encoding.
Solution Approach 2:
The patent introduces ASN.1 encoding as an intermediary mechanism between measurement data generation and transmission. Instead of relying on higher-layer protocol stacks for both encoding and transmission, ASN.1 provides a standardized encoding format that works directly with lower-layer protocols, serving as a mediator that enables flexible message formatting without requiring higher-layer processing.
2Loss of time
If lower-layer protocols are used for measurement report transmission, then latency is reduced, but payload flexibility is limited
Solution Approach 1:
The patent changes the encoding parameter of the measurement report payload from traditional higher-layer protocol formats to ASN.1 encoding. ASN.1 provides a flexible parameter structure that can represent various measurement data types (signal strength, quality metrics, location information) while maintaining a compact format suitable for lower-layer protocol transmission. This parameter change enables both low latency and payload flexibility.
3Reliability
If traditional measurement reporting methods are used, then protocol compatibility is maintained, but positioning accuracy is compromised
Solution Approach 1:
The patent creates a parallel transmission path for measurement reports using lower-layer protocols alongside the traditional higher-layer protocol path. This copying approach allows the system to maintain protocol compatibility through existing higher-layer mechanisms while simultaneously enabling more accurate and timely positioning through the optimized lower-layer path. The lower-layer message carries the same measurement data in an optimized format.
Data Source
AI summary
A method of sending measurement information from a user equipment includes: measuring a reference signal: producing a measurement report payload based on measurement of the reference signal: encoding the measurement report pay load in accordance with ASN.1 (Abstract Syntax Notation One) encoding, and in accordance with a lower-layer protocol to produce an encoded payload, the lower-layer protocol being either a physical-layer protocol or a MAC-layer (Medium Access Control layer) protocol; and sending a lower-layer message based on the encoded pay load from the user equipment to a network entity.