Dynamic PDCCH Resource Sharing in Multi-Hop Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving low latency in multi-hop networks due to high overhead in PDCCH resource management, particularly in integrated access and backhaul networks, which limits the efficiency of dynamic resource sharing between PDCCH monitoring and transmission.
Innovation Solution
Implementing a method where a node in a multi-hop network is configured with three types of PDCCH resources: one dedicated to monitoring, one dedicated to transmission, and a third type that can be dynamically configured for either monitoring or transmission, allowing for flexible resource allocation and reducing overhead through state transitions based on activation and deactivation messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated PDCCH resources are allocated for both monitoring and transmission, then reliability is improved, but device complexity and overhead increase
Solution Approach 1:
The patent applies universality by configuring a third set of PDCCH resources that can serve dual purposes - either for monitoring or transmission based on dynamic needs. This multi-functional resource pool allows the same resources to be flexibly allocated to different functions, reducing the need for separate dedicated resources while maintaining system reliability.
Solution Approach 2:
The patent implements dynamics through state transition mechanisms where the third set of PDCCH resources can dynamically switch between monitoring state and transmission state based on activation and deactivation messages. This dynamic allocation allows the system to adapt resource usage in real-time, optimizing both reliability and complexity management.
2Productivity
If more PDCCH resources are allocated for monitoring and transmission, then productivity is improved, but loss of time due to resource management overhead increases
Solution Approach 1:
The patent merges the monitoring and transmission resource pools by introducing a shared third set of PDCCH resources. Instead of managing completely separate resource pools for monitoring and transmission, the system combines them with flexible sharing capabilities, reducing the total number of resource configurations needed and minimizing management overhead time.
Solution Approach 2:
The patent utilizes parameter changes through state transition mechanisms that switch the functional state of PDCCH resources between monitoring and transmission modes. By changing the operational parameters of the same physical resources rather than allocating separate resources, the system maintains high productivity while reducing the time consumed by resource management operations.
3Adaptability or versatility
If flexible resource sharing is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments PDCCH resources into three distinct sets with different functionality - first set dedicated to monitoring, second set dedicated to transmission, and third set for flexible sharing. This segmentation provides a structured framework that enables adaptability while managing complexity through clear functional boundaries and standardized management procedures.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a node in a multi-hop network may receive a configuration that indicates a first set of physical downlink control channel (PDCCH) resources dedicated to PDCCH monitoring by the node, a second set of PDCCH resources dedicated to PDCCH transmission by the node, and a third set of PDCCH resources permitted to be configured for either PDCCH monitoring by the node or PDCCH transmission by the node. The node in a multi-hop network may configure a resource of the third set of PDCCH resources for one of PDCCH monitoring or neither PDCCH monitoring nor PDCCH transmission based at least in part on an initial state associated with the resource. Numerous other aspects are provided.