Uplink Rate Option Indicator for Wireless Terminal
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Solution Overview
Problem
Current wireless communication systems lack efficient methods for the wireless terminal and base station to jointly select the optimal uplink data transmission rate, leading to operational inefficiencies due to incomplete information and unnecessary battery consumption, interference, and latency delays.
Innovation Solution
The wireless terminal transmits uplink rate option information within the uplink channel segment using an indicator value, represented by an energy pattern or encoded as coded bits, allowing the base station to interpret and adjust the data rate accordingly, facilitating better resource management and energy conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the base station assigns uplink data transmission rate without wireless terminal feedback, then the base station can control system interference levels, but the base station has incomplete information about terminal conditions leading to operational inefficiencies
Solution Approach 1:
The patent implements a feedback mechanism where the wireless terminal measures its own channel conditions and transmits rate option information back to the base station. This allows the base station to make informed rate assignments that balance interference control with operational efficiency, as the terminal's feedback provides accurate real-time information about its transmission capabilities and channel quality.
Solution Approach 2:
The wireless terminal autonomously measures its own channel conditions and determines appropriate rate options without requiring continuous base station intervention. This self-service approach allows the terminal to efficiently select optimal transmission rates based on its current state, improving operational efficiency while the base station maintains overall interference control through rate assignment.
2Speed
If the wireless terminal transmits at higher data rates, then the transmission speed increases, but the battery power consumption increases and causes unnecessary interference
Solution Approach 1:
The patent enables dynamic rate selection where the wireless terminal can adapt its transmission rate based on real-time channel conditions and battery status. By transmitting rate option information to the base station, the terminal allows for dynamic rate assignment that optimizes the balance between transmission speed and power consumption, rather than using a fixed high rate that would always consume maximum power.
Solution Approach 2:
The system changes the transmission rate parameter dynamically based on measured channel conditions and power availability. The wireless terminal reports rate option information that reflects current operational parameters, allowing the base station to assign rates that are appropriate given the terminal's power state and channel quality, thus avoiding unnecessary power consumption at high rates when conditions don't support them.
3Device complexity
If the base station assigns fixed uplink data rates, then the system control is simplified, but the wireless terminal cannot adapt to changing channel conditions causing latency delays
Solution Approach 1:
The wireless terminal performs preliminary measurements of channel conditions and prepares rate option information before the base station makes rate assignments. This preliminary action allows the system to maintain relatively simple control procedures while enabling adaptive rate selection, as the terminal has already assessed channel quality and can quickly adapt to changing conditions without complex real-time negotiations.
Data Source
AI summary
A wireless terminal includes an uplink rate option indicator in the same uplink channel segment with data, the rate option indicator providing transmission rate information about the data transmitted in the segment. The indicator value is represented by an energy pattern within the segment. Different energy patterns correspond to different indicator values. The number of indicator values is less than the number of possible uplink data rate options supported by the wireless terminal. A single indicator value represents different uplink data rate options, at different times, as a function of a received maximum data rate option and/or type of assignment message. The maximum data rate option and/or assignment message was transmitted by the same base station receiving the indicator value; therefore, there is no ambiguity between wireless terminal and base station as to the interpretation of the uplink data rate option indicator value with respect to an individual uplink segment.