Mobile Transceiver Transmit Diversity Control for Battery and Throughput Trade-off
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Solution Overview
Problem
The use of multiple transmit antennas in mobile transceivers for Uplink Closed Loop Transmit Diversity (CLTD) increases power consumption, affecting battery life, and existing simple on/off requests from user equipment (UE) to the network do not adequately balance system performance and battery life, leading to potential system throughput and battery life trade-offs.
Innovation Solution
The mobile transceiver apparatus determines a desired transmission configuration based on its status and provides detailed information to the base station transceiver about potential status changes, allowing the network to evaluate and decide on enabling or disabling CLTD, including numerical indicators of power consumption and throughput impacts, to balance system performance and battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Uplink Closed Loop Transmit Diversity (CLTD) is activated to improve system capacity and link performance, then system throughput and reliability are improved, but power consumption increases and battery life decreases
Solution Approach 1:
The patent implements dynamic switching between CLTD and single-antenna transmission modes based on real-time evaluation of UE status (battery level, channel conditions, traffic load). The transmission configuration is not fixed but adapts dynamically to current system conditions, allowing the network to activate CLTD only when beneficial and switch to lower-power modes when appropriate.
Solution Approach 2:
The patent changes the operational parameters of the transmission system by adjusting the transmit diversity configuration based on evaluated parameters such as battery status, channel quality, and traffic requirements. The system transitions between different transmission modes (CLTD enabled/disabled) by changing the parameter of antenna configuration, thereby optimizing the trade-off between throughput and power consumption.
2Device complexity
If simple on/off requests are used for CLTD control, then device complexity is reduced, but the network cannot adequately evaluate the trade-off between system performance and battery life
Solution Approach 1:
The patent implements a feedback mechanism where the UE provides detailed status information (battery level, channel conditions, traffic load) to the network. The network uses this feedback to evaluate whether activating or deactivating CLTD is appropriate, making informed decisions based on current system state rather than simple on/off commands.
Solution Approach 2:
The patent introduces an intermediary evaluation process at the network side that mediates between the UE's power management needs and the system's throughput requirements. The network controller acts as an intermediary that synthesizes multiple factors (battery status, channel conditions, traffic load) to make the final decision on CLTD configuration, rather than relying on simple UE requests.
3Duration of action of moving object
If CLTD is deactivated to extend battery life, then power consumption is reduced and battery life is extended, but system throughput and capacity are degraded
Solution Approach 1:
The system dynamically adjusts the transmit diversity configuration based on real-time conditions. When battery life is critical or channel conditions are poor, the system switches to single-antenna mode to conserve power. When battery status is good and channel conditions favor diversity, CLTD is activated to maximize throughput, creating a dynamic balance between battery life and system productivity.
Solution Approach 2:
The system changes the transmission mode parameter based on evaluated conditions. By adjusting the antenna configuration parameter (single antenna vs. multiple antennas with diversity), the system optimizes the trade-off between battery consumption and throughput, selecting the appropriate parameter setting based on current battery status, channel conditions, and traffic requirements.
Data Source
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AI summary
Method, apparatus and computer program for a mobile transceiver 100 and a base station transceiver in a mobile communication system. The mobile transceiver 100 operating multiple antennas for transmitting radio signals to a base station transceiver 200. A mobile transceiver apparatus 10 comprises means for determining 12 a desired transmission configuration for the multiple antennas based on a status of the mobile transceiver 100 and for determining information on a potential status change if the desired transmission configuration was used instead of a current transmission configuration. The apparatus comprises means for transmitting 14 information on a request of the desired transmission configuration and the information on the potential status change. A base station transceiver apparatus 20 comprises means for receiving 22 the information and means for determining 24 a potential load status based on the information on the potential status change. The base station transceiver apparatus 20 comprises means for transmitting 26 information on the instructed transmission configuration.