Base Station Resource Allocation for Ultra-Dense Networks
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Solution Overview
Problem
In ultra-dense wireless networks, interference suppression after network densification cannot dynamically match network changes, leading to reduced resource utilization and increased signaling overheads.
Innovation Solution
A base station determines the belonging type of user equipment (UE) based on downlink signal interference values and capability information, and allocates resources accordingly, using frequency division duplex for multi-connection UEs and time division duplex for single-connection UEs to dynamically manage interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a static orthogonal method is used for interference avoidance, then implementation complexity is reduced, but resource utilization is reduced because it cannot dynamically match network changes
Solution Approach 1:
The patent applies dynamics by transitioning from static orthogonal interference avoidance to dynamic resource allocation. The base station determines UE belonging types based on downlink signal interference values and capability information, then allocates resources dynamically using frequency division duplex for multi-connection UEs and time division duplex for single-connection UEs. This dynamic adaptation to network changes resolves the contradiction by enabling resource utilization to match actual interference conditions while maintaining manageable complexity through systematic classification and allocation rules.
2Productivity
If a dynamic orthogonal method is used for interference avoidance, then resource utilization is improved by dynamically matching network changes, but signaling overheads increase
Solution Approach 1:
The patent applies local quality by classifying UEs into different belonging types based on their specific interference conditions and capability information. Instead of applying uniform dynamic resource allocation to all UEs, the system tailors the allocation strategy to each UE's local characteristics - multi-connection UEs receive frequency division duplex allocation while single-connection UEs receive time division duplex allocation. This targeted approach achieves dynamic adaptation for resource utilization improvement while minimizing unnecessary signaling overheads by avoiding uniform complex procedures for all UEs.
3Productivity
If network densification is implemented to increase network capacity, then network capacity is improved, but interference between neighboring cells increases
Solution Approach 1:
The patent applies parameter changes by utilizing different duplex modes (frequency division duplex and time division duplex) as allocation parameters based on UE belonging types. The base station determines the appropriate duplex mode according to the UE's interference environment and capability information, then allocates resources accordingly. This parameter-based differentiation allows the system to maintain high network capacity from densification while managing interference through adaptive resource allocation strategies tailored to each UE's specific conditions.
Data Source
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AI summary
The present invention discloses a resource allocation method and apparatus. The method includes: receiving, by a base station, a downlink signal interference value that is sent by at least one UE associated with the base station and capability information of the at least one UE; determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information; determining a duplex mode of the at least one UE according to the belonging type; and allocating, based on the duplex mode, a resource to the at least one UE, and sending the resource to the UE, so as to resolve a problem that resource utilization is reduced or relatively large signaling overheads are caused because interference suppression after network densification cannot dynamically match a network change.