PUSCH Power Control via Available Frequency Resources
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Solution Overview
Problem
Current 5G communication systems face challenges in optimizing uplink signal power control, which affects data reception performance and power efficiency, particularly in managing frequency domain resources for physical uplink shared channels (PUSCH) in wireless communication networks.
Innovation Solution
A method is introduced where a user equipment (UE) in a wireless communication network determines the frequency domain resources for PUSCH transmission based on indication information, allocating power efficiently by distinguishing between allocated and available resources, and adjusting power levels accordingly to ensure optimal data transmission while conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is allocated based on total frequency domain resources allocated to PUSCH, then transmission coverage is ensured, but power consumption increases and reception performance deteriorates when some resources are unavailable
Solution Approach 1:
The patent applies local quality by differentiating between available and unavailable frequency domain resources within the allocated PUSCH resources. The power control mechanism adjusts transmission power based on the actual number of available resources rather than uniformly applying power across all allocated resources, thereby optimizing both reception performance and power consumption according to the actual usable resources.
2Productivity
If power control does not account for unavailable frequency resources, then implementation is simple, but transmission efficiency decreases and power is wasted
Solution Approach 1:
The patent implements preliminary action by having the UE determine the number of available frequency domain resources before performing power control calculations. The UE identifies unavailable resources (such as those overlapping with downlink resources or flexible resources not allocated for uplink) in advance, and this information is used to adjust the transmission power accordingly, thereby improving transmission efficiency without requiring complex real-time adjustments during data transmission.
3Reliability
If all allocated frequency domain resources are used for PUSCH transmission, then resource utilization is maximized, but interference with downlink or flexible resources occurs
Solution Approach 1:
The patent applies the taking out principle by extracting unavailable frequency domain resources from the total allocated PUSCH resources. The UE identifies and excludes resources that overlap with downlink resources or flexible resources not allocated for uplink transmission, thereby preventing interference with these resources while still utilizing the available resources for PUSCH transmission effectively.
Data Source
AI summary
A method and a device for reception and transmission are provided, wherein a method performed by a user equipment (UE) in a wireless communication network is provided. The method includes determining a frequency domain resource related to a physical uplink shared channel (PUSCH) transmission based on indication information, and determining a power of the PUSCH transmission for transmitting PUSCH based on the frequency domain resource related to the PUSCH transmission, wherein the frequency domain resource related to the PUSCH transmission includes a frequency domain resource allocated to the PUSCH or a frequency domain resource available for the PUSCH transmission among the frequency domain resource allocated to the PUSCH.