WTRU Power Control Using Minimum Slot Offset Validation
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Solution Overview
Problem
Next generation air interfaces face challenges in adapting to diverse use cases with varying service requirements, spectrum usage models, and mobility scenarios, necessitating flexible power control mechanisms for wireless transmit/receive units (WTRUs) to optimize resource allocation and efficiency.
Innovation Solution
Implementing methods for WTRU power control that involve receiving a time domain resource allocation list configuration, decoding downlink control information, and validating slot offset values to ensure valid resource allocations, thereby enabling efficient reception of physical downlink shared channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If WTRU monitors all configured slot offset values in TDRA list, then resource allocation flexibility is improved, but power consumption increases
Solution Approach 1:
The WTRU changes the parameter of slot offset validation by comparing received slot offset values against a minimum slot offset threshold. This parameter-based filtering allows the device to selectively process only valid resource allocations, reducing unnecessary monitoring and power consumption while maintaining adaptability to diverse service requirements
Solution Approach 2:
The system dynamically adjusts resource allocation validation based on service requirements and WTRU capabilities. The minimum slot offset value can be configured differently for various service types (eMBB, URLLC, mMTC), allowing the WTRU to adapt its monitoring behavior dynamically rather than continuously monitoring all possible slot offsets
2Manufacturing precision
If WTRU validates each slot offset value against minimum threshold, then resource allocation accuracy is improved, but processing complexity increases
Solution Approach 1:
The minimum slot offset value is pre-configured based on service requirements and WTRU capabilities before actual resource allocation occurs. This preliminary setup eliminates the need for complex real-time validation logic, as the WTRU only needs to compare received slot offset values against the pre-established threshold, simplifying processing while ensuring accuracy
3Adaptability or versatility
If WTRU supports diverse service requirements with varying slot offsets, then service adaptability is improved, but system complexity increases
Solution Approach 1:
The TDRA list is segmented into multiple entries, each associated with specific service types and minimum slot offset values. The WTRU can selectively apply different minimum slot offset thresholds based on the service requirement (e.g., larger offsets for eMBB, smaller offsets for URLLC), allowing diverse service support through structured segmentation rather than monolithic complex handling
Data Source
AI summary
Methods and apparatus for wireless transmit/receive unit (WTRU) power control are described. A method includes receiving a time domain resource allocation (TDRA) list configuration including entries, each including a resource allocation that includes a slot offset value. L1 signaling is received indicating a minimum slot offset value. Downlink control information (DCI) is decoded on a physical downlink control channel in a slot. An index is obtained from the decoded DCI, identifying an entry in the TDRA list. A particular slot offset value identified by the index is retrieved from the TDRA list and compared with the minimum slot offset value. If the particular slot offset value is less than the minimum slot offset value, the entry is invalid. If the particular slot offset value is greater than or equal to the minimum slot offset value, a physical downlink shared channel is received.