Frequency Hopping in Wireless Uplink Transmission
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Solution Overview
Problem
Existing mobile communication systems face challenges in efficiently allocating radio resources for uplink transmissions with varying time lengths, leading to reduced resource utilization and potential misalignment between user equipment (UE) and base station intentions during frequency hopping.
Innovation Solution
A method for frequency hopping that adjusts resource allocation based on predetermined RB offsets, ensuring efficient use of resources even when UEs are allocated radio resources of various time lengths, and maintains alignment with base station intentions, particularly in next-generation wireless systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is applied to uplink transmissions with varying time lengths, then frequency diversity and reliability are improved, but resource utilization deteriorates due to misalignment between UE and base station intentions
Solution Approach 1:
The patent applies dynamics by making the frequency hopping behavior adaptive to different transmission time lengths. The UE determines whether to perform frequency hopping based on the actual time length of the uplink transmission, rather than applying a fixed hopping pattern. This dynamic adjustment ensures that frequency hopping is only performed when beneficial, avoiding resource waste while maintaining reliability improvements.
Solution Approach 2:
The patent changes the parameter of frequency hopping application based on transmission time length. By modifying the hopping behavior parameter according to the actual transmission duration, the system optimizes the balance between obtaining frequency diversity benefits and maintaining efficient resource utilization across different transmission scenarios.
2Device complexity
If frequency hopping offset is limitedly applicable, then device complexity is reduced, but adaptability deteriorates when handling various time length allocations
Solution Approach 1:
The patent makes the frequency hopping mechanism dynamic by allowing the UE to adapt its hopping behavior to different transmission time lengths. This dynamic approach enables the system to handle various time length allocations effectively without requiring complex offset configurations, as the hopping decision is made based on the actual transmission parameters.
Solution Approach 2:
The UE performs self-determination regarding whether to apply frequency hopping based on the allocated time length. This self-service mechanism allows the UE to autonomously adapt to different transmission scenarios without requiring complex network configuration, thereby maintaining low device complexity while achieving high adaptability.
3Reliability
If UE performs frequency hopping during random access, then connection reliability is improved, but operation alignment with base station intention deteriorates
Solution Approach 1:
The patent introduces feedback mechanisms where the UE monitors base station responses and adjusts its frequency hopping behavior accordingly. During random access, the UE determines whether to perform frequency hopping based on feedback from the base station, ensuring that the hopping operation aligns with the base station's intentions while still improving connection reliability.
Solution Approach 2:
The frequency hopping behavior during random access is made dynamic rather than fixed. The UE adapts its hopping decision based on the specific random access scenario and base station responses, allowing the system to maintain both connection reliability improvements and operational alignment with base station intentions.
Data Source
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AI summary
A method for a user equipment (UE) to perform an uplink transmission through a frequency hopping in a wireless communication system is disclosed. More specifically, the method includes receiving uplink (UL)-downlink (DL) configuration information from a base station; and performing the uplink transmission through the frequency hopping for each non-slot on non-slots that are repeated at least two times within one slot based on the UL-DL configuration information, wherein the non-slot is a scheduling unit with a smaller time interval than the one slot.