CoMP Resource Allocation via Dynamic Cell-Specific Mode Selection
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Solution Overview
Problem
In coordinated multi-point (CoMP) transmission systems, existing resource allocation methods for downlink and uplink transmissions in wireless communication systems often result in inefficient resource utilization due to the need for all cells to use the same resources, leading to limitations and potential interference, especially in heterogeneous networks.
Innovation Solution
Implementing a resource allocation mode where cells involved in CoMP transmissions do not necessarily use the same resources, allowing for dynamic selection and allocation based on individual cell capabilities and constraints, enabling transparent or informed resource management to the user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all cells use the same resources for CoMP transmissions, then coordination and interference management are simplified, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where cells can flexibly select from multiple resource allocation modes (first mode with same resources, second mode with different resources) based on real-time channel conditions, traffic load, and cell capabilities. This dynamic adaptation allows the system to optimize between coordination simplicity and resource efficiency depending on operational context.
Solution Approach 2:
The patent changes the resource allocation parameters by introducing semi-static configuration of resource allocation modes and allowing cells to selectively apply different resource sets (first resource set vs. second resource set) based on their capabilities and constraints. This parameter flexibility enables efficient resource utilization while maintaining manageable coordination complexity.
2Productivity
If cells use different resources for CoMP transmissions, then resource utilization efficiency improves, but interference management and coordination complexity increase
Solution Approach 1:
The system dynamically selects between resource allocation modes based on current network conditions. When cells use different resources (second mode), the system activates enhanced coordination mechanisms including semi-static mode indication and cell-specific resource configuration, which manage the increased complexity while maintaining resource efficiency benefits.
Solution Approach 2:
The patent introduces configurable parameters including semi-static resource allocation mode indicators and cell-specific resource set assignments. These parameter changes enable the system to efficiently manage different resource allocations across cells while providing structured coordination mechanisms to handle the increased complexity.
3Productivity
If resource allocation is optimized for individual cell capabilities, then resource utilization efficiency improves, but system compatibility and ease of operation deteriorate
Solution Approach 1:
The patent creates a universal resource allocation framework that supports multiple allocation modes within a single system. The serving cell can indicate different resource allocation modes to different user equipments, and cells can function in either same-resource or different-resource modes depending on their capabilities and the configured mode, providing multi-functionality while maintaining system-wide compatibility.
Solution Approach 2:
The serving cell acts as an intermediary that coordinates resource allocation between the network and user equipments. It receives semi-static resource allocation mode indications, determines appropriate resource sets based on cell capabilities, and conveys this information to user equipments through downlink control information, simplifying operation while enabling optimized resource allocation.
Data Source
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AI summary
Methods, apparatuses and articles of manufacture are disclosed that provide for partial downlink and uplink resource allocations among cooperating cells in a CoMP transmission to a user equipment. The resource allocation can be based on channel conditions and differing capabilities and restrictions of cooperating cells such as in support of heterogeneous network configurations. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.