Wireless Communication Node Flexible Numerology Measurement
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Solution Overview
Problem
The existing LTE V2X system lacks a measurement mechanism to effectively manage payload control for the more flexible numerologies and frame structures of 5G NR V2X, leading to inefficiencies in transmission reliability and business conflicts due to rigid payload balance control.
Innovation Solution
A method involving performing X measurements in X time-frequency units to acquire first-type measurement values, which are used for determining Modulation Coding Scheme (MCS) and time-frequency resources occupied by a radio signal, with the granularity of measurements varying according to subcarrier spacing, enabling more accurate reflection of actual transmission needs and loosening time limits for scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single Numerology measurement mechanism (15 kHz SCS, normal CP, 1 ms subframe) is used as in LTE V2X, then the measurement mechanism is simple and easy to implement, but it cannot meet the requirement of flexible Numerology in 5G NR V2X, leading to insufficient adaptability
Solution Approach 1:
The patent introduces dynamic measurement mechanisms that adapt to different Numerologies (subcarrier spacings and cyclic prefix types). The measurement parameters, time-frequency resource configurations, and reporting mechanisms are made configurable based on the active Numerology, allowing the system to dynamically adjust measurement behavior rather than using a fixed single-Numerology approach.
Solution Approach 2:
The patent changes key measurement parameters including subcarrier spacing, cyclic prefix length, and time-frequency resource allocation based on the active Numerology. By making these parameters configurable and adaptable to different Numerology settings, the measurement mechanism can effectively support flexible Numerology requirements while maintaining systematic control over measurement complexity.
2Reliability
If rigid payload balance control is implemented as in LTE V2X, then the control mechanism is simple, but transmission reliability decreases and business conflicts increase
Solution Approach 1:
The patent implements feedback mechanisms where measurement results (including payload status, channel conditions, and resource utilization) are continuously monitored and fed back to adjust payload control decisions. This feedback loop enables more reliable transmission by adapting payload allocation to actual channel conditions and system state, reducing business conflicts through intelligent resource management.
Solution Approach 2:
The patent performs preliminary measurements and assessments of payload status, channel conditions, and resource availability before making transmission decisions. By conducting these measurements in advance and using the results to pre-adjust payload allocation and resource selection, the system improves transmission reliability and reduces conflicts before they occur.
3Measurement precision
If measurement granularity is fixed for single Numerology in LTE V2X, then the measurement process is simple and fast, but measurement accuracy is insufficient for diverse transmission requirements
Solution Approach 1:
The patent segments the measurement process into different components and granularities based on the active Numerology and transmission requirements. Different measurement granularities are applied to different parameters (e.g., finer granularity for payload status, coarser for channel conditions), allowing accurate measurements without uniformly increasing measurement time across all parameters.
Solution Approach 2:
The patent applies partial measurement actions by selecting and performing only the necessary measurements based on current transmission requirements and active Numerology. Rather than performing all possible measurements uniformly, the system performs partial measurements focused on the most relevant parameters, achieving sufficient accuracy without excessive measurement time overhead.
Data Source
AI summary
The present disclosure discloses a method and a device in a communication used for wireless communication. The communication node first performs X measurement(s) respectively in X time-frequency unit(s), the X measurement(s) respectively being used for acquiring X first-type measurement value(s), the X being a positive integer; and then performs a first measurement, the first measurement being used for acquiring a second-type measurement value; and finally transmits a first radio signal; herein, the X first-type measurement value(s) is(are) used for the first measurement, the second-type measurement value acquired by performing the first measurement is used for determining at least one of an MCS employed by the first radio signal or time-frequency resources occupied by the first radio signal; a number of time-frequency resources occupied by one of the X time-frequency unit(s) is related to a subcarrier spacing of subcarriers occupied by the first radio signal.