RF Channel Dormancy for Terminal Power Reduction
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Solution Overview
Problem
Massive MIMO systems face challenges in reducing power consumption in terminal devices, particularly when electric energy is limited, due to the need for extensive processing and communication operations.
Innovation Solution
A terminal device with a baseband processing module and radio frequency processing module that determines low power consumption states for radio frequency channels and units based on precoding information and duration information, allowing for the disabling or dormancy of channels and units corresponding to all-zero data sequences to minimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If precoding processing is performed on all radio frequency channels, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating processing requirements across different radio frequency channels. Specifically, channels carrying all-zero data sequences are identified and placed in a dormant state, while other channels continue normal processing. This selective approach maintains communication reliability for active channels while reducing power consumption by excluding inactive channels from processing.
Solution Approach 2:
The patent implements partial action by performing precoding processing only on necessary radio frequency channels rather than all channels. By identifying channels with all-zero data sequences and excluding them from processing, the system achieves the minimum necessary processing to maintain communication reliability while avoiding excessive power consumption from processing unnecessary channels.
2Productivity
If all radio frequency channels are kept active, then data transmission capability is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by enabling flexible state transitions for radio frequency channels. Channels can dynamically switch between active and dormant states based on data characteristics. This dynamic adjustment allows the system to maintain data transmission capability for necessary channels while reducing power consumption by transitioning inactive channels to dormant state.
Solution Approach 2:
The patent segments the radio frequency channels into distinct groups: active channels carrying meaningful data and dormant channels carrying all-zero sequences. This segmentation allows independent control of each group, enabling the system to maintain transmission capability for active channels while eliminating power consumption from dormant channels.
3Measurement precision
If precoding processing is performed on all data sequences, then signal quality is improved, but unnecessary power is consumed for all-zero sequences
Solution Approach 1:
The patent changes the operational parameter (processing state) of radio frequency channels based on data characteristics. When a channel carries an all-zero data sequence, its state changes from active to dormant, eliminating unnecessary processing. This parameter change maintains signal quality for channels with meaningful data while preventing energy loss from processing zero-valued channels.
Data Source
AI summary
The present disclosure relates to control methods and devices. One example method is applied for a terminal device, and the terminal device comprises a radio frequency processing circuit, the radio frequency processing circuit comprising a plurality of radio frequency channels. The method comprises determining low power consumption state information of the carrier based on precoding information and duration information, where the low power consumption state information comprises a target radio frequency channel and a duration time for scheduling the target radio frequency channel, a data sequence mapped to the target radio frequency channel being all-zero, and sending control information to the radio frequency processing circuit, where the control information is used to control the target radio frequency channel to be in a low power consumption state, and the low power consumption state comprises a disabled state or a dormant state.