Dynamic Uplink Downlink Resource Partitioning in TDD Access Points
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Solution Overview
Problem
In synchronous time division duplex (TDD) wireless communication networks, the global and semi-static partitioning of uplink and downlink resources leads to inefficient resource utilization due to wasted resources and overload/underload issues caused by changing traffic patterns across access points.
Innovation Solution
Implementing a dynamic resource partitioning method where individual access points can select their own uplink-downlink resource partitioning based on current traffic loads and interference environments, allowing for flexible allocation of resources by signaling whether a resource slot will be used for uplink or downlink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If global and semi-static uplink-downlink resource partitioning is used in synchronous TDD networks, then network synchronization and coordination are maintained, but resource utilization efficiency deteriorates due to wasted resources and overload/underload situations
Solution Approach 1:
The patent divides the network into autonomous access point segments, where each access point independently determines its own uplink-downlink resource partitioning based on local traffic conditions. This segmentation allows each access point to optimize resource allocation locally without being constrained by global synchronization requirements, thereby improving resource utilization efficiency while maintaining network coordination through interference management mechanisms.
Solution Approach 2:
The patent implements dynamic resource partitioning where access points can change their uplink-downlink configuration in real-time based on varying traffic patterns. Unlike static global partitioning, each access point dynamically adapts its resource allocation to current conditions, allowing the system to respond to changing demands and avoid resource waste or overload situations.
2Productivity
If dynamic resource partitioning is implemented at individual access points, then resource utilization efficiency improves by adapting to traffic conditions, but network coordination and interference management become more complex
Solution Approach 1:
The patent employs feedback mechanisms where access points monitor their traffic conditions and interference levels, then adjust their resource partitioning decisions accordingly. Each access point receives feedback about its local environment and uses this information to make informed decisions about uplink-downlink configuration, balancing resource utilization with interference management.
Solution Approach 2:
The patent changes the key parameter of resource partitioning configuration dynamically at each access point. By adjusting the uplink-downlink resource allocation parameters based on local conditions rather than using fixed global parameters, the system improves resource utilization while managing interference through localized parameter optimization.
Data Source
AI summary
A method, an apparatus, and a computer program product for wireless communication are provided in which information indicating a partitioning between uplink and downlink resources is received, and communication with an access point to determine at least one of whether a downlink resource will be used for uplink or whether an uplink resource will be used for downlink is performed. Accordingly, a synchronous network may be provided where partitioning of uplink-downlink resources may be dynamically selected, which is more efficient than a synchronous network where uplink-downlink resource partitioning is global and semi-static.