Power Offset Parameter Configuration for HSUPA Throughput
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Solution Overview
Problem
The existing High-speed Uplink Packet Access (HSUPA) system in WCDMA and other communication systems faces challenges in balancing power levels for both high-speed and low-speed data transmission states due to fixed target retransmission times, leading to suboptimal Signal to Interference Ratio (SIR) adjustments.
Innovation Solution
A method and apparatus for dynamically determining power offset parameters based on current network states, including data throughput rates and cell resource usage, to configure adaptive power settings for terminals, ensuring optimal resource allocation and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed target retransmission times are used, then device complexity is reduced, but uplink throughput rate deteriorates due to inability to adapt to varying network conditions
Solution Approach 1:
The patent implements dynamic adjustment of power offset parameters based on real-time network conditions (data throughput rate and cell resource usage state). The system transitions from fixed to dynamic configuration, allowing the power offset to adapt to varying traffic conditions and resource availability, thereby improving uplink throughput without significantly increasing device complexity
Solution Approach 2:
The patent changes the power offset parameter dynamically based on network state. By adjusting the power offset parameter according to data throughput rate and cell resource usage, the system optimizes uplink transmission power allocation, resolving the contradiction between fixed configuration simplicity and adaptive throughput performance
2Device complexity
If fixed reference power offset and HARQ PO are configured, then device complexity is reduced, but adaptability to different transmission speeds deteriorates
Solution Approach 1:
The patent makes the power offset configuration dynamic by continuously monitoring data throughput rate and cell resource usage state. The system adjusts power offset parameters in real-time based on current network conditions, enabling adaptation to different transmission speeds while maintaining manageable device complexity through automated control
Solution Approach 2:
The patent implements a feedback mechanism where the system monitors data throughput rate and cell resource usage state, then uses this information to adjust power offset parameters. This closed-loop control enables the system to adapt to varying transmission conditions automatically, resolving the contradiction between fixed configuration simplicity and adaptive performance
3Stability of the object's composition
If outer loop power control adjusts SIR target value slowly, then stability is improved, but speed of SIR adjustment deteriorates
Solution Approach 1:
The patent introduces power offset parameters as an intermediary mechanism between the outer loop power control and the actual transmission power. By adjusting the power offset parameter, the system can rapidly influence SIR without directly changing the slowly-adjusted SIR target value, thus achieving fast SIR adjustment while maintaining the stability of the outer loop control mechanism
Data Source
AI summary
The present invention discloses a method and an apparatus for determining a power offset parameter. The method for determining the power offset parameter provided in the present invention comprises: obtaining data throughput rate and/or cell resource usage state of a terminal; determining a resource state of the terminal according to the data throughput rate and/or the cell resource usage state and a corresponding threshold; determining power offset parameter configuration corresponding to the resource state according to the determined resource state; and sending the power offset parameter configuration to the terminal, so that the terminal determines the power offset parameter according to the power offset parameter configuration.