Dynamic Resource Allocation for Self-Backhaul and Access Links
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Solution Overview
Problem
In Ultra-Dense Networks (UDNs), the existing resource allocation methods for self-backhaul (sBL) and access links (AL) are inflexible, leading to inefficient resource utilization and high implementation complexity, particularly in 5G systems where dynamic resource allocation is necessary to adapt to changing network loads and interference conditions.
Innovation Solution
A configuration method for resource sharing among multiple wireless links, which involves determining sets P, Q, U, and V for downlink and uplink transmissions, allowing for flexible and dynamic allocation of resources between sBL and AL, enabling rapid adaptation to channel states and network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing resource allocation methods are used for self-backhaul and access links, then resource allocation is simple, but resource utilization efficiency is low and implementation complexity is high
Solution Approach 1:
The patent implements dynamic resource allocation between self-backhaul links and access links by allowing the network side device to flexibly adjust the proportion of resources allocated to each link type based on real-time channel states and network conditions. This dynamic adjustment mechanism enables the system to adapt to changing traffic demands and interference conditions, thereby improving resource utilization efficiency while managing implementation complexity through standardized procedures.
Solution Approach 2:
The patent changes the allocation proportion parameter of resources dynamically between self-backhaul links and access links. By adjusting this parameter based on network conditions, the system can optimize resource utilization without requiring completely new allocation algorithms, thus improving productivity while controlling the complexity of implementation.
2Productivity
If resources are allocated flexibly between sBL and AL, then resource utilization efficiency is improved, but implementation complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the network side device monitors channel states and network conditions, then adjusts the resource allocation proportion between self-backhaul links and access links accordingly. This feedback-driven approach enables flexible resource allocation that improves utilization efficiency while managing implementation complexity through systematic decision-making processes based on observed network states.
3Productivity
If wired backhaul is provided according to maximum system capacity, then system capacity is ensured, but utilization rate of backhaul is very low and investment cost is wasted
Solution Approach 1:
The patent replaces static wired backhaul with dynamic wireless self-backhaul links that can adapt their resource allocation to actual traffic demands. This allows the system to ensure required system capacity while avoiding the waste of investment costs associated with over-provisioning wired backhaul infrastructure, as resources are allocated dynamically based on real-time needs rather than maximum theoretical capacity.
Data Source
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Figure 3B~5(C)
Figure 6(A)~7
AI summary
A configuration method for resource sharing among multiple wireless links is provided. The multiple wireless links include a first link and a second link, or include a first link, a second link and a third link. In the method, P-Q configuration is performed on a set N formed by a group of continuous units, and a set P configured for downlink transmission of the second link/third link and a set Q configured for uplink transmission of the second link/third link in the set N are determined; U-V configuration is performed on the set N, and a set U configured for downlink transmission of the first link/third link and a set V configured for uplink transmission of the first link/third link in the set N are determined; and a set S for uplink transmission of the second link/third link and downlink transmission of the second link/third link is determined. The first link is a link between a first node and a second node; the second link is a link between the second node and a third node; and the third link is a link between the first node and the third node. The method may support flexible and rapid resource allocation of the multiple wireless links, for example, a self-Backhaul Link (sBL) and an Access Link (AL).