Uplink Power Allocation Across Extended Frequency Resources
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in wireless signal transmission and reception procedures, particularly in determining optimal transmission power and resource allocation for uplink signals.
Innovation Solution
A method and apparatus for wireless communication systems that involve receiving downlink control information for uplink signal transmission, determining transmission power based on frequency resource allocation, and transmitting the uplink signal across multiple frequency resource regions, including a first region and at least one extended region, with power determined by the total number of resources in both regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If transmission power is determined based only on the first frequency resource region allocated through DCI, then the device complexity is reduced, but the transmission power optimization is insufficient when extended frequency resources are used
Solution Approach 1:
The base station pre-configures extension frequency resource region information through higher layer signaling before actual transmission. This allows the terminal to proactively determine transmission power based on both the first and second frequency resource regions, achieving optimized power allocation without increasing real-time processing complexity.
2Device complexity
If the uplink signal is transmitted only in the first frequency resource region, then the resource allocation is simple, but the frequency resource utilization is insufficient
Solution Approach 1:
The patent extends the frequency resource allocation from a single contiguous region (first frequency resource region) to include an additional extended region (second frequency resource region). This dimensional expansion in frequency resource usage allows the terminal to transmit uplink signals across a broader spectrum, improving overall frequency resource utilization while maintaining manageable allocation complexity through pre-configured extension information.
Data Source
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AI summary
A method for receiving a signal by a terminal in a wireless communication system according to an embodiment may comprise: receiving downlink control information (DCI) including frequency resource allocation information for transmission of an uplink signal; determining transmission power of the uplink signal on the basis of the DCI; and transmitting the uplink signal on the basis of the determined transmission power, wherein the uplink signal is transmitted in a first frequency resource region allocated through the frequency resource allocation information and at least one second frequency resource region extended from the first frequency resource region, and the transmission power of the uplink signal is determined on the basis of the total number of frequency resources included in the first frequency resource region and in the at least one second frequency resource region.