Receiver Mode Selection for MCS-Based Power Control
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Solution Overview
Problem
Existing wireless communication receivers face a challenge in balancing power consumption with reception performance, particularly in devices with limited or fluctuating energy sources, as reducing complexity often leads to degraded reception quality.
Innovation Solution
A method and apparatus for power consumption control in receivers that allow configuration in different operational modes, each with distinct hardware settings and power consumption levels, selecting modes based on parameters like MCS, to optimize power usage and maintain acceptable performance, using methods to determine the selection of these parameters, and the use of which include an expected modulation and coding scheme (MCS), and providing a mapping scheme for selecting the appropriate mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If less complex processing is used in the receiver, then power consumption is reduced, but reception performance deteriorates
Solution Approach 1:
The receiver dynamically adjusts its operational mode based on the expected MCS of upcoming reception occasions. The mode selection is not static but adapts to changing channel conditions and traffic requirements, allowing the system to use simpler processing when possible while maintaining performance when needed
Solution Approach 2:
The system changes operational parameters (hardware settings, processing complexity) based on the expected MCS. Different MCS values map to different operational modes with different power consumption characteristics, allowing optimization of the power-performance tradeoff based on actual communication requirements
2Reliability
If higher complexity processing is used in the receiver, then reception performance is improved, but power consumption increases
Solution Approach 1:
The system applies processing complexity selectively - using higher complexity only when the expected MCS requires it, and using simpler processing when the MCS allows. This partial application of complex processing avoids unnecessary power consumption while maintaining performance where needed
Solution Approach 2:
The system performs preliminary assessment of the expected MCS for upcoming reception occasions and pre-selects the appropriate operational mode before actual reception occurs. This allows the receiver to be prepared in advance with the optimal processing complexity, avoiding both over-provisioning and under-provisioning of processing resources
Data Source
AI summary
Methods are disclosed for power consumption control of a receiver configurable in different operational modes. Each of the operational modes is associated with a respective power consumption of the receiver. At least two of the respective power consumptions are different, and at least two of the operational modes have different hardware settings. One method comprises selecting one of the operational modes for an upcoming reception occasion. The selection of the operational mode is based on one or more selection parameters which include an expected modulation and coding scheme (MCS) for the upcoming reception occasion. One method comprises determining a mapping scheme from one or more selection parameters to a collection of operational modes, wherein the one or more selection parameters include an expected modulation and coding scheme (MCS), and providing the mapping scheme for use by the receiver in selecting one of the operational modes for a reception occasion. Corresponding computer program product, apparatuses, receiver, communication device, and server node are also disclosed.