MAC-CE Semi-Persistent Resource Activation
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Solution Overview
Problem
Current wireless communication systems face limitations in efficiently managing semi-persistent resources, particularly in terms of slot offset and periodicity, which restricts flexibility and optimal utilization of resources in communication protocols.
Innovation Solution
The implementation of a medium access control control channel (MAC-CE) that indicates slot offset or slot periodicity for semi-persistent resource sets, allowing user equipment (UE) and base stations to dynamically activate and configure communications based on these parameters, enhancing flexibility and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semi-persistent resources are activated using conventional methods, then resource allocation is established, but flexibility in slot offset and periodicity configuration is limited
Solution Approach 1:
The patent implements dynamic configuration of semi-persistent resources by allowing the base station to send MAC-CE messages that can activate, deactivate, or reconfigure resources with different slot offsets and periodicities. This enables the system to adapt resource allocation dynamically based on traffic conditions while maintaining semi-persistent characteristics, resolving the contradiction between flexibility and complexity.
Solution Approach 2:
The patent changes key parameters (slot offset and periodicity) of semi-persistent resources through MAC-CE signaling. By allowing these parameters to be modified without full reconfiguration, the system achieves greater flexibility in resource allocation while avoiding the complexity of complete resource setup procedures.
2Productivity
If semi-persistent resources are configured with fixed slot offset and periodicity, then resource management is simplified, but resource utilization efficiency decreases
Solution Approach 1:
The patent introduces dynamic adjustment capabilities for slot offset and periodicity parameters through MAC-CE messages. The base station can activate resources with specific parameters or modify existing parameters without full reconfiguration, enabling efficient resource utilization while maintaining manageable configuration complexity.
Solution Approach 2:
The MAC-CE mechanism serves multiple functions: it can activate resources, deactivate resources, and reconfigure parameters (slot offset and periodicity) all through the same signaling structure. This multi-functionality improves resource utilization efficiency without proportionally increasing configuration complexity.
3Adaptability or versatility
If dynamic configuration of semi-persistent resources is implemented, then flexibility and resource utilization improve, but signaling overhead increases
Solution Approach 1:
The patent uses MAC-CE messages to modify only the necessary parameters (slot offset and periodicity) of semi-persistent resources rather than retransmitting complete resource configurations. This parameter-change approach provides configuration flexibility while minimizing signaling overhead by transmitting only the differential information needed.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a medium access control control channel (MAC-CE) that indicates one or more of a slot offset or a slot periodicity for a semi-persistent resource set. The UE may perform, with the base station, a communication at a slot associated with a semi-persistent resource of the semi-persistent resource set based at least in part on one or more of the slot offset or the slot periodicity, wherein the semi-persistent resource associated with the slot is activated based at least in part on the MAC-CE. Numerous other aspects are described.