Unlicensed Band Occupancy Detection for Wireless Communication
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Solution Overview
Problem
The rapid growth of wireless broadband data has led to a need for improving service quality in LTE networks, which requires efficient utilization of unlicensed frequency bands, but existing technologies struggle to manage multiple communication systems sharing these bands without interference.
Innovation Solution
An apparatus and method at both base station and user sides for wireless communications that include units for detecting and determining the occupation status of unlicensed frequency bands, allowing for coordinated communication by distinguishing between licensed and unlicensed systems and adjusting transmission patterns to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple communication systems occupy unlicensed frequency bands simultaneously, then frequency utilization efficiency is improved, but interference between systems increases
Solution Approach 1:
The base station performs preliminary detection of the unlicensed frequency band occupation status before initiating communication. The user equipment also performs local detection and reports results to the base station, enabling the system to assess frequency band availability in advance and avoid interfering with ongoing communications in the unlicensed band.
2Measurement precision
If user equipment assists in detecting unlicensed frequency band status, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The user equipment performs its normal communication functions while simultaneously assisting in the detection of unlicensed frequency band status. The detection capability is integrated into the existing user equipment without requiring separate dedicated detection devices, thereby improving measurement precision while minimizing the increase in device complexity.
Data Source
AI summary
A base station side device and method and user side device and method for wireless communication. The device includes: a sending unit configured to send instruction on an unauthorized frequency band detection to a user equipment (UE) served by the cell where the device is located; a receiving unit configured to receive from the UE a signal representing occupancy status of the unauthorized frequency band; and a determination unit configured to determine based on the signal received by the receiving unit whether to use the unauthorized frequency band for communication, the unauthorized frequency band occupancy status includes occupied/idle status and the type of the occupying system, and the type of occupying system includes one of an unauthorized communication system and an authorized communication system.