Primary UE Resource Allocation for Interference Control
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Solution Overview
Problem
In wireless communication systems, interference occurs between UEs due to communication between a primary UE and a secondary UE, particularly when the primary UE and secondary UE are close, as existing schemes do not account for their interaction, leading to potential obstruction of communication with other UEs and the base station, and high power consumption.
Innovation Solution
A method involving a primary UE receiving scheduling information from a base station to allocate resources for communication with a secondary UE, where a subframe includes a control signal slot and a data signal slot, with specific configurations for uplink and downlink resources, carrier sensing, and power control to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication between primary UE and secondary UE is performed without resource allocation from base station, then communication flexibility is improved, but interference with other UEs and base station increases
Solution Approach 1:
The patent segments the communication resources by dividing them into dedicated resources allocated by the base station and autonomous resources that can be used without base station intervention. This segmentation allows the system to balance between communication flexibility and interference control by enabling UEs to use pre-allocated resources for flexible communication while avoiding uncoordinated access that causes interference.
Solution Approach 2:
The patent implements dynamic resource allocation where the base station can allocate resources adaptively based on current system conditions, traffic patterns, and interference levels. This dynamic approach allows the system to optimize the balance between communication flexibility and interference management by adjusting resource allocation in real-time according to network conditions.
2Reliability
If primary UE and secondary UE communicate at high power, then communication reliability is improved, but power consumption increases and interference to other UEs worsens
Solution Approach 1:
The patent employs parameter changes by dynamically adjusting transmission power based on channel conditions, distance between UEs, and quality of service requirements. Instead of using fixed high power, the system adapts power levels to achieve reliable communication at the minimum necessary power, thereby reducing overall power consumption while maintaining communication reliability.
Solution Approach 2:
The patent applies partial action by using high power only when necessary for reliable communication, rather than continuously operating at high power. The system uses power adaptation to apply full power only when channel conditions require it, and reduces power when conditions permit, thus achieving reliability only where needed while minimizing power consumption.
3Productivity
If subframe is divided into control signal slot and data signal slot, then resource allocation efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the subframe into distinct control signal slots and data signal slots, allowing independent allocation and management of control and data resources. This segmentation improves resource allocation efficiency by enabling precise control over when and how control information and data are transmitted, while the structured nature of the segmentation keeps implementation complexity manageable through clear separation of functions.
Data Source
AI summary
The present invention relates to a wireless communication system, and more particularly, to a method and device for communication between terminals in a wireless communication system. According to the present invention, a resource configuration method, a channel configuration method, a transmission power control method, etc. for communication between terminals can be provided.