Neighbor Cell RSS Measurement for Asynchronous Cell Timing
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Solution Overview
Problem
Terminal devices cannot measure the RSS of asynchronous neighbor cells, leading to reduced communication reliability due to inability to determine the time domain location and sequence parameter of the RSS, which hinders RSRP measurement.
Innovation Solution
The terminal device determines the time domain location and first sequence parameter of the RSS of the neighbor cell using configuration information or preset rules, allowing accurate RSS measurement even when the serving and neighbor cells are asynchronous.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device measures RSS of asynchronous neighbor cells using conventional methods, then the measurement process is simple, but the terminal device cannot determine the time domain location and sequence parameter of the RSS, resulting in measurement failure
Solution Approach 1:
The patent applies preliminary action by having the network device pre-configure and indicate the time domain location and sequence parameter of the RSS to the terminal device before the measurement occurs. This allows the terminal device to perform measurements on asynchronous neighbor cells without having to discover these parameters dynamically, thus improving measurement reliability while keeping the terminal device's processing relatively simple.
Solution Approach 2:
The patent uses the network device as an intermediary to transmit the time domain location and sequence parameter information from the neighbor cell to the terminal device. This intermediary approach resolves the contradiction by centralizing the complexity of parameter determination in the network device, enabling reliable measurements without increasing terminal device complexity.
2Reliability
If the terminal device uses preset rules to determine time domain location and sequence parameter, then the measurement can be performed without additional signaling, but the adaptability to different network configurations is reduced
Solution Approach 1:
The patent applies dynamics by making the method adaptable to both synchronous and asynchronous cell configurations. The terminal device can use preset rules for simple cases while the network device can provide specific indications when needed, allowing the system to dynamically adjust between these two approaches based on the actual network configuration, thus maintaining both reliability and adaptability.
3Measurement precision
If the network device provides configuration information for RSS measurement, then the terminal device can measure asynchronous neighbor cells accurately, but additional signaling overhead is introduced
Solution Approach 1:
The patent applies partial action by having the network device provide only the specific time domain location and sequence parameter information that is necessary for RSS measurement, rather than configuring all possible measurement parameters. This selective provision of information achieves accurate measurement of asynchronous neighbor cells while minimizing the signaling overhead.
Data Source
AI summary
A terminal device determines the time domain location, where the time domain location is a time domain location of the RSS of the neighbor cell in the timing of the neighbor cell; determines a first sequence parameter of the RSS of the neighbor cell; and measures the RSS of the neighbor cell based on the time domain location and the first sequence parameter of the RSS of the neighbor cell.