Multiflow Reverse Link MAC Power Allocation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing power allocation and transmission modes for multiple flows in access terminals, leading to suboptimal performance in terms of throughput and latency, especially in power-limited scenarios.
Innovation Solution
The access terminal determines its total available power by summing each flow's power allocation and selects appropriate transmission modes and payload sizes based on loading levels and quality of service requirements, ensuring that power levels do not exceed the terminal's limits and optimizing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the access terminal increases power allocation for multiple flows, then throughput is improved, but the terminal may exceed its power limits
Solution Approach 1:
The patent implements dynamic power allocation where the access terminal continuously adjusts power distribution across multiple flows based on current system conditions. The terminal determines total available power by summing each flow's power allocation and dynamically selects transmission modes and payload sizes to optimize throughput while ensuring power levels remain within terminal limits.
2Productivity
If the access terminal uses higher transmission modes for faster data rate, then throughput is improved, but latency increases due to power constraints
Solution Approach 1:
The patent changes transmission parameters dynamically by selecting different transmission modes and payload sizes based on loading levels and quality of service requirements. The access terminal adjusts these parameters to achieve optimal balance between throughput and latency, ensuring that power levels do not exceed terminal limits while maintaining efficient data transmission.
3Ease of operation
If the access terminal allocates power equally across all flows, then simplicity is maintained, but quality of service requirements are not met
Solution Approach 1:
The patent applies different power allocation strategies to different flows based on their specific quality of service requirements. The access terminal determines each flow's power allocation individually, taking into account loading levels and service requirements, rather than applying a uniform allocation scheme. This allows differentiated service quality while maintaining manageable complexity through automated determination.
Data Source
AI summary
An access terminal (206) configured for wireless communication with an access network (204) within a sector (1032). The access terminal includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions stored in the memory (2604) implement, for each flow (1216) of a plurality of flows on the access terminal (206), determining the flow's total available power (1238). The access terminal's total available power (1234) is determined by summing each flow's total available power (1238). A packet is transmitted to the access network (204) at a power level that does not exceed the access terminal's total available power (1234).