UE-Requested Reference Signal Gaps for Inter-Cell Measurement
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Solution Overview
Problem
Existing wireless communications systems face issues with insufficient or excessive time gaps for UE measurements of inter-cell reference signals, leading to performance degradation, increased latency, and potential service interruptions.
Innovation Solution
User equipment (UE) dynamically requests specific time gaps for inter-cell reference signal measurements, enabling efficient tuning of RF components and reducing resource waste and communication latency by optimizing gap durations and frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE uses configured time gaps for reference signal measurements, then the measurement process is standardized and manageable, but the time gaps may be insufficient for proper measurement or excessive causing increased latency
Solution Approach 1:
The patent implements dynamic time gap adjustment where the UE can request and the network can configure different time gap durations based on actual measurement needs. The time gap configuration is no longer static but adapts to specific measurement scenarios, allowing the system to optimize between sufficient measurement time and minimized latency on a per-measurement basis.
Solution Approach 2:
The patent changes the time gap parameter from a fixed configured value to a flexible parameter that can be adjusted based on measurement requirements. The UE evaluates whether the configured time gap is sufficient and can request modification, enabling the system to optimize the time gap duration parameter for each specific measurement scenario rather than using a one-size-fits-all approach.
2Measurement precision
If the UE requests specific time gaps for measurements, then measurement precision is improved, but system complexity and signaling overhead increase
Solution Approach 1:
The UE performs self-evaluation of the configured time gap sufficiency and autonomously determines when to request time gap modifications. The UE calculates whether the current configuration meets measurement requirements and initiates requests only when necessary, reducing unnecessary signaling while maintaining measurement precision. This self-service approach allows the UE to manage its own measurement optimization without requiring complex network-side evaluation mechanisms.
3Reliability
If excessive time gaps are configured, then measurement reliability is maintained, but UE performance degrades due to increased latency and power consumption
Solution Approach 1:
The patent enables dynamic adjustment of the time gap parameter based on actual measurement needs rather than using excessive fixed configurations. By allowing the UE to request and the network to configure appropriate time gap durations, the system optimizes the parameter to be just sufficient for reliable measurement without the overhead of excessive gaps, thereby improving UE communication performance while maintaining measurement reliability.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity via a first cell, signaling that indicates a configuration for communicating a reference signal associated with measuring a second cell. The UE may transmit, to the network entity and based on the configuration, a request for a time gap to be included between communications via the first cell and communication of the reference signal. The UE may receive, via the second cell and in response to the request for the time gap, the reference signal in accordance with the time gap. In some examples, the request for the time gap may be communicated via positioning signaling associated with requesting time gaps between the communication of positioning reference signals (PRSs).