Adaptive Transmission Mode Configuration for Interference Management
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Solution Overview
Problem
Current wireless communication systems, such as LTE, face challenges in efficiently managing resource-specific transmission modes to mitigate inter-cell interference and optimize data transmission in varying interference levels across different subframe sets.
Innovation Solution
The system partitions uplink or downlink resources into multiple sets and configures distinct transmission modes for each set based on interference levels, using higher-layer signaling to adapt transmission modes according to the specific interference characteristics of each subframe set, allowing for stable CSI measurement and robust packet transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single transmission mode is used for all resources, then the system configuration is simple, but it cannot adapt to varying interference levels across different subframe sets
Solution Approach 1:
The patent segments resources into multiple subframe sets and configures different transmission modes for each set. The base station divides uplink or downlink resources into first and second subframe sets, and applies different transmission modes (first and second modes) to each set, allowing adaptation to varying interference levels without requiring a completely new system architecture
Solution Approach 2:
The patent applies local quality by assigning different transmission mode characteristics to different subframe sets based on their specific interference conditions. Each subframe set can have transmission modes optimized for its local interference environment, rather than applying a uniform mode across all resources
2Measurement precision
If resource-specific measurement schemes are implemented, then channel quality measurement accuracy improves, but measurement and signaling overhead increases
Solution Approach 1:
The patent uses a unified higher-layer signaling mechanism that can configure multiple transmission modes and their corresponding measurement schemes across different subframe sets. This multi-functional approach allows the system to achieve resource-specific measurement accuracy while using a single configurable framework rather than separate independent mechanisms for each resource set
Data Source
AI summary
A method for a user equipment transmitting/receiving signals to and from a base station in a wireless communication system is disclosed in the present invention, which is specifically characterized by comprising the following steps: receiving form the base station information related to a plurality of subframe sets; receiving from the base station information related to transmission modes which correspond to each of the plurality of subframe sets; and transmitting/receiving the signals to and from the base station based on the transmission mode that corresponds to a specific subframe set in a subframe that belongs to the specific subframe set from the plurality of subframe sets.