Uplink Control Channel Energy Allocation for Detection Performance
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting uplink control information due to resource shortages and the need for higher data transfer rates, increased connection devices, low latency, and high energy efficiency, particularly in next-generation mobile communication systems.
Innovation Solution
A method for mapping uplink control information to an uplink control channel by generating modulation symbols using QPSK or BPSK modulation schemes, allocating equal energy to reference signal and data regions, and optimizing energy allocation based on chordal distance to enhance detection and decoding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional uplink control channel transmission is used, then resource allocation is simple, but detection and decoding performance deteriorates due to insufficient energy allocation and small chordal distance between states
Solution Approach 1:
The patent changes the energy allocation parameters by setting the energy value of the first resource region (data region) equal to the energy value of the second resource region (reference signal region). This parameter change optimizes the detection and decoding performance by ensuring adequate energy allocation to both data and reference signals, thereby resolving the contradiction between improved reliability and the complexity of energy allocation management.
Solution Approach 2:
The patent applies equipotentiality by equalizing the energy values allocated to the data region and reference signal region. This creates a balanced energy distribution where both regions have equal energy potential, optimizing the overall system performance without requiring complex differential energy allocation strategies.
2Measurement precision
If QPSK or BPSK modulation with optimized energy allocation is used, then detection performance improves, but resource allocation complexity increases
Solution Approach 1:
The patent applies local quality by differentiating the mapping approach for different regions: modulation symbols are mapped to the first resource region (data region) while reference signals are mapped to the second resource region (reference signal region). Each region receives appropriate treatment optimized for its specific function, with equal energy allocation ensuring both regions contribute optimally to detection precision.
3Reliability
If energy is allocated to maintain large chordal distance, then error performance improves, but energy efficiency decreases
Solution Approach 1:
The patent optimizes the energy allocation parameter by setting the energy value of the data region equal to the energy value of the reference signal region. This balanced parameter configuration achieves the necessary chordal distance for good error performance while avoiding excessive energy consumption, thereby resolving the contradiction between reliability and energy efficiency.
Data Source
AI summary
Disclosed is a method for transmitting an uplink control channel and a device therefor. Specifically, a method for transmitting an uplink control channel in a wireless communication system by a terminal, includes: generating at least one modulation symbol for specific uplink control information; mapping the at least one modulation symbol to a first resource region of the uplink control channel; and transmitting the uplink control channel to a base station, in which the uplink control channel may include the first resource region and a second resource region to which a reference signal is mapped, and an energy value allocated to the first resource region may be configured to be the same as an energy value allocated to the second resource region.