Channel State Measurement for Timely Interference Reporting
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Solution Overview
Problem
In unlicensed spectrum networks, nodes face challenges with channel access uncertainty, interference from hidden nodes, and delayed data transmission due to inefficient interference detection methods, leading to latency issues in services requiring low latency and high reliability.
Innovation Solution
A measurement method and apparatus that enables communication nodes to acquire and report channel state indications based on configured measurement information, activate or deactivate PDCP duplication functions, and select frequency domains for optimal data transmission, using RRC messages and dedicated signaling to improve interference detection and channel access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a long report cycle is configured for interference measurement, then the measurement time is extended and more measurement moments are counted, but the interference cannot be seen from the measurement results because strong interference signals are averaged out
Solution Approach 1:
The patent applies dynamic adjustment of measurement parameters by introducing multiple measurement windows with different lengths (first measurement window and second measurement window) and dynamically selecting which window to use based on current channel conditions. This allows the system to adapt between long measurement cycles (for accuracy) and short measurement cycles (for timeliness) rather than being fixed to a single cycle length, thereby resolving the contradiction between measurement precision and time loss.
2Loss of time
If a short report cycle is configured for interference measurement, then the measurement report is frequently reported, but the node cannot detect interference in time because measurement results are sent through RRC messages which introduce delay
Solution Approach 1:
The patent segments the measurement reporting process into multiple independent measurement windows (first measurement window and second measurement window) with different characteristics. Each window can be configured with different lengths and reporting requirements, allowing the system to separate the functions of frequent measurement sampling from timely interference detection reporting, thereby resolving the contradiction between reporting frequency and detection timeliness.
3Reliability
If PDCP duplication function is activated for reliable data transmission, then transmission reliability is improved, but system complexity and resource consumption increase
Solution Approach 1:
The patent changes the operational parameters of the PDCP duplication function by configuring it to operate only during specific measurement windows (first or second measurement window) based on channel conditions, rather than running continuously. This parameter-based control allows the system to activate PDCP duplication only when needed for reliable transmission, reducing overall system complexity and resource consumption while maintaining transmission reliability when required.
Data Source
AI summary
Disclosed herein are a measurement method and apparatus, a node, and a non-transitory computer-readable storage medium. The measurement method may include: acquiring, by a first communication node, measurement information configured by a second communication node; performing, by the first communication node, measurement according to the measurement information to obtain a measurement result; and reporting, by the first communication node, a channel state indication which carries the measurement result in response to the measurement result meeting a reporting condition.