Uplink Control Resource Allocation via Implicit Derivation
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Solution Overview
Problem
Current communication systems face inefficiencies in scheduling overhead, particularly in uplink control signaling, which affects the optimization of resource allocation and communication efficiency for a large number of users in various data traffic scenarios.
Innovation Solution
The solution involves an apparatus and method that select and implicitly derive resources for uplink control signals based on predefined rules, allowing for the signaling of information in the downlink and facilitating communication using non-selected resources, thereby optimizing resource allocation and reducing scheduling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explicit signalling of all HARQ-ACK resources is performed via RRC, then resource allocation is complete and reliable, but signalling overhead increases significantly
Solution Approach 1:
The patent extracts only the necessary resource information to be dynamically signalled via RRC, while deriving the remaining resources implicitly through predefined rules. This reduces the amount of explicit signalling required while maintaining complete resource allocation reliability.
Solution Approach 2:
The system uses predefined rules that enable user equipment to self-derive resource information without requiring explicit network signalling. The rules allow the user equipment to autonomously determine resource allocations based on existing configuration parameters, reducing signalling overhead while maintaining allocation reliability.
2Adaptability or versatility
If dynamic resource allocation is implemented for uplink, then scheduling flexibility improves, but scheduling overhead increases
Solution Approach 1:
Instead of signalling all possible resource allocations dynamically, the patent applies partial action by only signalling a subset of resources through RRC while using predefined rules to derive the remaining resources. This maintains sufficient scheduling flexibility without the full overhead of complete dynamic allocation.
Solution Approach 2:
The patent changes the approach from explicit parameter signalling for all resources to a hybrid approach where parameters are either explicitly signalled or implicitly derived through predefined rules. This reduces the total signalling required while preserving scheduling adaptability for different data traffic scenarios.
Data Source
AI summary
The disclosure relates operation where information of at least one selected resource from a pool of resources for control signals in uplink is signalled in downlink. At least one resource is selected from a pool of resources for control signals in the uplink, where after information of the selected at least one resource is signalled in the downlink. Communication of control signals in the uplink by at least one device is facilitated such that at least one non-selected resource from the pool of resources is used in sending of control signals in the uplink. The at least one resource is implicitly derived in accordance with a predefined rule.