AMP Terminal Mobility Management for Cell Reselection
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Solution Overview
Problem
The challenge of implementing mobility management for zero-energy terminals in communication systems due to disparities in capabilities between zero-energy terminals and legacy terminals.
Innovation Solution
A wireless communication method and network device that adjust measurement results based on the capabilities of zero-energy terminals, enabling effective cell selection and reselection processes while maintaining energy harvesting and backscattering operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If zero-energy terminals are introduced into communication systems, then device complexity and maintenance requirements are reduced, but mobility management performance deteriorates due to capability disparities compared to legacy terminals
Solution Approach 1:
The patent applies parameter changes by introducing capability indication parameters that describe the specific capabilities of zero-energy terminals. These parameters enable the network to adapt mobility management procedures by adjusting measurement configurations, reporting thresholds, and handover criteria based on the terminal's energy harvesting capabilities and operational constraints, thereby resolving the mobility management performance deterioration while maintaining the simplified device structure.
Solution Approach 2:
The patent implements dynamics by making mobility management parameters adaptive rather than static. The network dynamically adjusts measurement configurations and handover parameters based on real-time capability indications from zero-energy terminals and their energy status, allowing the system to optimize mobility management performance according to varying terminal capabilities and network conditions.
2Reliability
If capability-based parameter adjustment is implemented for zero-energy terminals, then mobility management performance is improved, but signaling overhead and network device complexity increase
Solution Approach 1:
The patent applies segmentation by dividing capability indications into discrete, standardized parameter types that categorize different aspects of zero-energy terminal capabilities (e.g., energy harvesting capability, backscattering capability, measurement capability). This segmentation allows the network to process and respond to specific capability aspects independently, reducing the overall complexity burden compared to handling unstructured or comprehensive capability descriptions.
3Measurement precision
If measurement results are adjusted based on capability differences, then cell selection and reselection accuracy is improved for zero-energy terminals, but measurement and processing time increases
Solution Approach 1:
The patent applies preliminary action by having zero-energy terminals indicate their capabilities in advance during initial access or registration procedures. The network pre-configures appropriate measurement parameters and thresholds based on these capability indications before actual mobility management operations begin, eliminating the need for real-time parameter calculation and adjustment during time-critical measurement and handover processes.
Data Source
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AI summary
A wireless communication method, an ambient (AMP) device, and a network device. The method comprises: a target AMP device performing a target operation on the basis of a target parameter, wherein the target operation comprises an operation related to cell selection and/or cell reselection, and the target parameter is related to the capability of the target AMP device.