Transport Block Size Selection for Cellular Power Reduction
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Solution Overview
Problem
Cellular communication technologies often operate inefficiently due to not considering the different application characteristics of various applications, leading to unnecessary high power consumption and interference, especially when channel conditions support more robust modulation and coding schemes than required for the application traffic.
Innovation Solution
A method that assesses channel conditions and application characteristics to select an appropriate transport block size and transmit power for wireless devices, using a more robust modulation and coding scheme than necessary for current conditions, allowing for reduced power consumption while maintaining communication efficiency and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cellular network uses the highest supported transport block size and maximum transmit power to support good channel conditions, then the communication throughput is maximized, but the power consumption of the wireless device increases and interference to other devices increases
Solution Approach 1:
The patent changes the transport block size parameter from the maximum supported size to a reduced size that is sufficient for the application's actual needs. By adjusting this parameter based on application characteristics rather than channel conditions alone, the system reduces transmit power requirements while maintaining adequate communication performance, thereby resolving the contradiction between throughput maximization and power consumption reduction.
Solution Approach 2:
The patent applies partial action by allocating only the necessary transport block size required for the application's data needs rather than providing the full capacity supported by channel conditions. This prevents excessive resource allocation, reducing power consumption and interference while still meeting the application's communication requirements.
2Productivity
If the cellular network selects a larger transport block size to support higher data rates, then the communication efficiency improves, but the robustness of the communication link decreases
Solution Approach 1:
The patent adjusts the transport block size parameter to match the actual application requirements rather than maximizing it for highest data rates. This parameter adjustment selects a moderate transport block size that provides sufficient data rate for the application while maintaining more robust modulation and coding schemes, thereby achieving both adequate productivity and improved reliability.
3Quantity of substance
If the cellular network allocates resources based on channel conditions alone without considering application characteristics, then the system operates with high capacity, but the communication efficiency decreases due to mismatched resource allocation
Solution Approach 1:
The patent applies local quality by tailoring the transport block size allocation to the specific characteristics of each application rather than using a uniform high-capacity allocation for all applications. Voice applications receive smaller, more appropriate transport block sizes matching their low data rate needs, while data-intensive applications receive larger allocations, thereby optimizing communication efficiency for each local context.
Solution Approach 2:
The patent introduces dynamics by making the transport block size allocation adaptive to application characteristics. The system dynamically adjusts resource allocation based on whether the application is voice-oriented or data-oriented, rather than using static high-capacity allocation, thereby improving overall communication efficiency while maintaining adequate resource provision.
Data Source
AI summary
This disclosure relates to reducing power consumption for cellular communication based on transport block size in combination with channel condition measurements for applications with certain application characteristics. In one embodiment, a transport block size for use for uplink communication with a base station by a wireless device may be selected. The transport block size may provide more robust communication characteristics than required for current channel conditions. The transport block size may be selected based on application characteristics of an application performing the uplink communication. A transmit power for the wireless device to use for the uplink communication may be selected based on the transport block size providing more robust communication characteristics than required for the current channel conditions. In particular, transport power selection may be biased towards a reduced transmit power based on the transport block size providing more robust communication characteristics than required for the current channel conditions.