Base Station Beam Grouping for 5G Resource Efficiency
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Solution Overview
Problem
In wireless communication systems, especially in 5G networks, there is a challenge in efficiently utilizing radio resources due to the varying capabilities of mobile terminals, leading to waste of resources when large-capacity terminals and multi-connection terminals share the same radio frequencies.
Innovation Solution
A communication device at the base station aggregates virtual cells with mobile terminals that can only perform uplink communication using a first beam with longer propagation distance but not using a second beam with shorter propagation distance, and controls the radiation direction of communication beams to ensure simultaneous radiation to all virtual cells within the same group.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If radio resources are allocated to mobile terminals without reserving resources, then device cost and power consumption are reduced, but radio resource utilization efficiency deteriorates when large-capacity terminals need to transmit uplink data
Solution Approach 1:
The patent segments mobile terminals into different groups based on their uplink transmission requirements. Terminals are divided into a first group that reserves radio resources and a second group that does not, allowing differentiated resource allocation strategies for each segment. This segmentation enables the system to maintain low cost and power consumption for terminals without reservation capability while ensuring efficient resource utilization for terminals that require it.
Solution Approach 2:
The patent applies local quality by treating different terminal groups differently in terms of radio resource allocation. The first group of terminals (capable of reserving resources) receives dedicated resource allocation, while the second group (unable to reserve) shares resources dynamically. This localized differentiation optimizes the system to achieve both cost reduction and efficient resource utilization for each terminal type.
2Productivity
If radio resources are reserved for mobile terminals, then radio resource utilization efficiency is improved, but power consumption and device cost increase
Solution Approach 1:
The patent segments terminals into two distinct groups: those capable of reserving radio resources and those unable to do so. This segmentation allows the system to implement resource reservation only where necessary, avoiding unnecessary power consumption and device complexity for terminals that can operate efficiently without reservation mechanisms.
Solution Approach 2:
The patent applies partial action by implementing radio resource reservation only for the first group of terminals that require it, while allowing the second group to operate without reservation. This partial application of the reservation mechanism optimizes the balance between resource utilization efficiency and power consumption, avoiding excessive resource management overhead for terminals that can function adequately without it.
3Device complexity
If beam radiation timing is synchronized for all virtual cells, then beam management complexity is reduced, but radio resource waste increases when terminals in different virtual cells have different beam requirements
Solution Approach 1:
The patent segments virtual cells into different groups based on the beam capabilities and requirements of terminals located in each cell. Terminals are classified into first and second groups according to their uplink transmission characteristics, and virtual cells are organized accordingly. This segmentation enables synchronized beam radiation management while preventing resource waste by aligning beam timing with actual terminal requirements.
Solution Approach 2:
The patent applies local quality to beam management by tailoring beam radiation timing to the specific requirements of terminals in different virtual cells. Different virtual cells may have different beam radiation timings based on their terminal characteristics, optimizing resource utilization while maintaining manageable system complexity through localized adaptation.
Data Source
AI summary
A communication device is a base station that communicates with mobile terminals by radiating communication beams within a coverage, the communication beams including a first beam and a second beam having a shorter radio wave propagation distance than the first beam at a same transmission power, the coverage including a plurality of virtual cells. The communication device includes: a grouping processing unit that groups the plurality of virtual cells such that virtual cells in which mobile terminals capable of uplink communication using the first beam and incapable of uplink communication using the second beam are located are aggregated; and a beam forming unit that controls a radiation direction of the communication beams such that the communication beams are radiated at a same timing to all virtual cells belonging to a same group.