Base Station Tune-Away Estimation for Wireless Communication
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Solution Overview
Problem
In wireless communication systems, base stations often unintentionally attempt to transmit data to user equipment (UE) during its tune-away periods, leading to communication delays and air traffic congestion, as they are unaware of the UE's timing for tuning away from the serving base station.
Innovation Solution
The base station estimates the UE's recurring tune-away periods by determining patterns from missed communications and configures itself to avoid transmitting data during these times, thereby reducing the risk of transmitting data while the UE is tuned away.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station continuously transmits data to the UE, then the data transmission efficiency is improved, but communication delays occur when the UE is tuned away
Solution Approach 1:
The base station performs preliminary actions by estimating the UE's tune-away periods in advance based on historical missed communication patterns. This allows the base station to proactively schedule data transmissions around these estimated periods, preventing transmission attempts during tune-away times and thereby avoiding communication delays while maintaining efficient use of transmission resources.
2Productivity
If the base station transmits data during UE tune-away periods, then air interface utilization is improved, but unnecessary retransmissions occur
Solution Approach 1:
The base station uses feedback from detected missed communications to learn and update the UE's tune-away period patterns. By continuously monitoring which transmissions are missed and analyzing the timing patterns, the base station refines its estimation of when the UE will be tuned away, enabling more accurate scheduling decisions that improve transmission reliability without sacrificing air interface utilization.
3Reliability
If the base station avoids transmitting during estimated tune-away periods, then communication reliability is improved, but air traffic congestion increases due to postponed transmissions
Solution Approach 1:
The base station dynamically adjusts its transmission schedule based on real-time estimation of UE tune-away periods. Rather than using fixed avoidance periods, the system adapts transmission timing to match the UE's actual tune-away patterns, optimizing the balance between avoiding missed transmissions and maintaining efficient air interface utilization. This dynamic scheduling prevents both unnecessary retransmissions and excessive delays.
Data Source
AI summary
When a base station is serving a user equipment device (UE) that tunes away from the base station during recurring tune-away periods, the base station will determine that the base station did not receive a communication expected to be received at a particular time from the UE. Based on the determining, the base station will estimate a first tune-away period of the UE's recurring tune-away periods to be a time period that encompasses the particular time. And based on the estimated first tune-away period, the base station will estimate times of subsequent tune-away periods. The base station will then configure itself such that it avoids communicating with the UE during the estimated times of the subsequent tune-away periods.