Inter-Device Interference Measurement in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently measuring inter-device interference (IDI) in full-duplex communication systems, which affects the location and performance of user equipment (UE) in wireless communication systems.
Innovation Solution
The method involves an evolved node B (eNB) transmitting downlink allocation information to UE, instructing specific UEs to measure IDI by transmitting reference signals, and receiving IDI measurement results, with configuration of timers and specific radio resource allocation to manage and identify interference sources effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reference signals are transmitted by multiple second UEs for IDI measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the IDI measurement process by assigning different reference signals to different second UEs. Each second UE transmits its own reference signal on specific resource elements, allowing the first UE to measure interference from each source separately. This segmentation enables precise identification of interference sources while maintaining manageable system complexity through structured resource allocation.
Solution Approach 2:
The patent introduces reference signals as intermediary elements that facilitate IDI measurement. These reference signals act as mediators between the second UEs (interference sources) and the first UE (measurement target), enabling the first UE to quantify and identify interference from multiple second UEs without direct complex interaction between them.
2Measurement precision
If specific radio resources are allocated for IDI measurement, then measurement precision is improved, but loss of information increases
Solution Approach 1:
The patent applies local quality by allocating specific resource elements dedicated to IDI measurement reference signals. These designated resources provide specialized quality for measurement purposes without compromising the overall system. The reference signals are placed on specific resource elements with particular properties (known sequences, specific time-frequency locations) that optimize measurement capability while minimizing impact on general data transmission.
Data Source
AI summary
The present invention relates to a method and device for ordering the measuring of Inter-Device Interference (IDI) for a base station in a wireless communication system. In particular, the method is characterized by comprising the steps of: transmitting downlink allocation information on a certain wireless resource to a first terminal; ordering the measuring of IDI to the first terminal when the certain wireless resource is allocated for uplink communication by at least one second terminal; ordering the transmitting of a reference signal defined for measuring IDI for the at least one second terminal; and transmitting reference signal measurement information, allocated to the at least one second terminal, to the first terminal.