Relay Station Resource Processing Selection via Dedicated Pilot Comparison
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Solution Overview
Problem
Current communication systems with relay technology face challenges in selecting between non-cooperation and cooperation resource processing manners, leading to inefficient resource utilization and increased bit error rates due to the lack of effective methods for determining the optimal transmission strategy.
Innovation Solution
A method and device that utilize dedicated and common pilots to compare signal parameters between a relay station and a user terminal, allowing the base station to select between cooperation and non-cooperation resource processing manners based on predetermined thresholds for parameters like power, signal-to-noise ratio, and signal-to-interference and noise ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If relay technology is introduced to increase coverage and capacity, then the coverage and capacity of the cell are improved, but the time-frequency resource utilization deteriorates because two times as much resources are occupied compared to direct transmission
Solution Approach 1:
The patent implements dynamic selection between cooperation and non-cooperation resource processing manners based on channel conditions. The base station determines the appropriate transmission mode (cooperative or non-cooperative) by comparing channel quality indicators, allowing the system to adaptively optimize resource utilization while maintaining coverage enhancement benefits.
2Reliability
If cooperation technology is used to achieve space diversity and improve link reliability, then the bit error rate performance is improved, but the system complexity deteriorates due to the need for coordinated transmission between multiple nodes
Solution Approach 1:
The patent segments the resource processing into two distinct manners: cooperation mode and non-cooperation mode. This segmentation allows the system to selectively apply complex coordinated transmission only when channel conditions warrant it, while falling back to simpler direct transmission modes otherwise, thereby managing system complexity while maintaining reliability benefits.
Solution Approach 2:
The patent changes the operational parameters of the relay system by introducing a selection mechanism that adjusts the transmission mode based on channel quality parameters. By comparing channel indicators and selecting appropriate processing manners, the system dynamically optimizes the balance between reliability improvement and complexity introduction.
3Productivity
If a selection mechanism between cooperation and non-cooperation manners is implemented, then the resource utilization and BER performance are improved, but the signaling overhead and system complexity deteriorate
Solution Approach 1:
The patent implements partial action by selectively applying the cooperation mechanism only when channel conditions indicate it would be beneficial. Rather than always using complex selection procedures, the system employs the selection mechanism partially - only when needed - thereby reducing signaling overhead while still achieving productivity improvements in appropriate scenarios.
Data Source
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AI summary
The present invention provides a method and device for selecting a resource processing manner, wherein the method is applied to a communication system including a user terminal, a relay station and a base station, and comprises the following operations: a configuring step of configuring a dedicated pilot, wherein the dedicated pilot is configured to measure parameters of a link from the relay station to the user terminal; an acquiring step of acquiring a first parameter value of a common pilot and a second parameter value of the dedicated pilot; a comparing step of comparing the first parameter value with the second parameter value; and a selecting step of selecting a resource processing manner according to the comparison result, wherein the resource processing manner comprises: a cooperation manner and/or a non-cooperation manner.