Resource Block Group Allocation for Wireless Interference Management
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Solution Overview
Problem
In wireless communication systems, traditional scheduler methods fail to effectively manage interference between beamforming and MIMO transmission modes, leading to unpredictable interference and decreased throughput due to mixed transmission modes in neighboring cells.
Innovation Solution
A method and apparatus that allocate resource block groups based on interference information, separating frequency carriers into parts for beamforming and MIMO transmission modes, prioritizing resource allocation and adjusting transmission power to minimize interference between modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional scheduler methods are used to allocate resources, then resource allocation is simple, but interference between beamforming and MIMO transmission modes is unpredictable and throughput decreases
Solution Approach 1:
The frequency carrier is divided into two distinct parts: first resource block groups (RB,1-RB,n) dedicated for beamforming transmission mode and second resource block groups (RB,n+1-RB,m) dedicated for MIMO transmission mode. This segmentation prevents mixed transmission modes in neighboring cells, making interference controllable and predictable while maintaining resource allocation efficiency.
2Productivity
If resource block groups are separated for different transmission modes, then interference becomes controllable and throughput improves, but resource allocation complexity increases
Solution Approach 1:
Different parts of the frequency carrier are assigned different transmission mode qualities: the first part (RB,1-RB,n) is optimized for beamforming with appropriate resource allocation, while the second part (RB,n+1-RB,m) is optimized for MIMO. This local quality differentiation ensures each transmission mode operates in its optimal conditions, improving overall throughput while managing complexity through structured allocation.
Solution Approach 2:
The system dynamically determines interference information based on radio environment information and adapts the resource block group allocation accordingly. The network node can adjust which resource block groups are assigned to beamforming or MIMO modes based on current interference conditions, user equipment requirements, and channel quality, making the allocation flexible rather than static.
3Adaptability or versatility
If mixed transmission modes are allowed in neighboring cells, then resource utilization is high, but interference becomes unpredictable and performance decreases
Solution Approach 1:
By segmenting the frequency carrier into dedicated beamforming resource block groups and dedicated MIMO resource block groups, the system ensures that neighboring cells using the same resource block groups will use the same transmission mode. This eliminates the unpredictability of mixed transmission mode interference while maintaining high resource utilization through coordinated allocation.
Solution Approach 2:
The resource block group allocation mechanism serves multiple functions: it separates transmission modes to ensure interference predictability, adapts to different radio environments through dynamic determination of interference information, and maintains high resource utilization by efficiently assigning resource block groups based on user equipment requirements and channel conditions.
Data Source
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AI summary
There is provided a method comprising allocating, in dependence on interference information, at least one resource block group from a frequency carrier for use by one of a plurality of sets of user equipments, said frequency carrier comprising at least one first resource block group to be used for a first transmission mode and at least one second resource block group to be used for a second transmission mode.