Configured Grant Uplink Timing With Non-Integer PUSCH Periodicity
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting data packets with potential jitter and require timely resource allocation for user equipment (UE) in next-generation communication systems.
Innovation Solution
A method and device for UE to transmit uplink signals using configured grants with non-integer periodicity, determining physical uplink shared channel (PUSCH) occasions based on configured grant configurations, and performing transmissions in these occasions, with periodicity configured as P/numberOfSymbolsPerSlot, where numberOfSymbolsPerSlot is the number of symbols per slot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional integer-based periodicity configuration is used for configured grants, then resource allocation is simple and standardized, but data packet transmission efficiency deteriorates and jitter occurs
Solution Approach 1:
The patent changes the periodicity parameter from traditional integer values to non-integer values (e.g., 0.5, 1.5, 2.5 slots). This parameter change allows the configured grant to align more precisely with actual data packet arrival patterns, improving transmission efficiency and reducing jitter while maintaining manageable configuration complexity through standardized non-integer options.
2Reliability
If non-integer periodicity is used for configured grants, then data packet transmission efficiency improves and jitter is reduced, but resource allocation timing becomes more complex
Solution Approach 1:
The base station performs preliminary calculation of the PUSCH occasion based on the non-integer periodicity value before actual transmission occurs. By pre-computing the timing using the formula involving floor((n × P) / numberOfSymbolsPerSlot), the system ensures accurate and timely resource allocation without introducing delays or timing uncertainties during the actual data transmission process.
3Productivity
If configured grant with non-integer periodicity is implemented, then timely resource allocation is achieved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary calculation mechanism using the floor function and standardized mathematical operations to bridge the non-integer periodicity value and the discrete PUSCH occasion timing. This intermediary approach simplifies the complexity by providing a clear, deterministic formula that converts non-integer periodicity into precise timing instructions without requiring complex real-time calculations or additional signaling protocols.
Data Source
AI summary
A UE receives a configured grant configuration about a configured grant, the configured grant configuration including a periodicity configuration about the periodicity P of the configured grant, determines, on the basis of the configured grant configuration, a PUSCH occasion in which an uplink grant based on the configured grant is generated, and transmits a PUSCH in the PUSCH occasion, wherein the periodicity is a non-integer value and the PUSCH occasion may be determined on the basis of an integer value determined on the basis of P/numberOfSymbolsPerSlot, where P/numberOfSymbolsPerSlot is the number of symbols per slot.