Dynamic Carrier Aggregation in Mobile Terminals
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Solution Overview
Problem
Designing a mobile terminal to efficiently handle non-contiguous multiple system carriers is challenging due to increased complexity and power consumption, especially in managing spectrum leakage, blocking requirements, and interference signals, which existing radio architectures struggle to address effectively.
Innovation Solution
A method for scheduling data transmissions between a mobile terminal and a base station that involves receiving information on available component carriers, detecting dynamic parameters such as battery charging level, transmission power, and baseband processing capability, and adjusting the number of system carriers used based on these parameters to ensure efficient handling of non-contiguous carriers, thereby optimizing power consumption and system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If non-contiguous multiple system carriers are aggregated to increase bandwidth, then data transmission rate is improved, but mobile terminal complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic carrier aggregation by allowing the mobile terminal to adjust the number of active component carriers based on real-time detection of dynamic parameters (battery charging level, transmission power requirements, baseband processing capability). The terminal transitions between different carrier aggregation configurations (e.g., from multiple carriers to single carrier) depending on current system conditions, making the bandwidth aggregation dynamic rather than static.
Solution Approach 2:
The patent changes operational parameters by monitoring dynamic parameters such as battery charging level, transmission power, and processing capability. When parameters cross predefined thresholds, the system adjusts the carrier aggregation configuration accordingly. For example, when battery charging level falls below a threshold or transmission power exceeds a threshold, the system reduces the number of active carriers to maintain operational feasibility.
2Speed
If non-contiguous multiple system carriers are aggregated to increase bandwidth, then data transmission rate is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic carrier aggregation by allowing the mobile terminal to adjust the number of active component carriers based on real-time detection of dynamic parameters (battery charging level, transmission power requirements, baseband processing capability). The terminal transitions between different carrier aggregation configurations (e.g., from multiple carriers to single carrier) depending on current system conditions, making the bandwidth aggregation dynamic rather than static.
Solution Approach 2:
The patent changes operational parameters by monitoring dynamic parameters such as battery charging level, transmission power, and processing capability. When parameters cross predefined thresholds, the system adjusts the carrier aggregation configuration accordingly. For example, when battery charging level falls below a threshold or transmission power exceeds a threshold, the system reduces the number of active carriers to maintain operational feasibility.
3Adaptability or versatility
If dynamic parameter monitoring is implemented to adjust carrier usage, then adaptability is improved, but device complexity increases
Solution Approach 1:
The mobile terminal autonomously monitors its own dynamic parameters (battery charging level, transmission power requirements, baseband processing capability) and automatically determines when to adjust carrier aggregation without requiring continuous network control. The terminal self-evaluates its operational capability and makes decisions about carrier usage based on predefined thresholds, reducing the need for complex network-side management.
Solution Approach 2:
The system implements feedback mechanisms where the mobile terminal reports its capability status to the base station based on detected dynamic parameters. When parameters cross thresholds, the terminal sends capability indication messages to the network, enabling adaptive carrier aggregation through bidirectional communication while keeping the terminal's local complexity manageable.
Data Source
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AI summary
A method of scheduling wireless data transmissions between a mobile terminal and a base station using multiple system carrier signals is disclosed. The method comprises receiving (101) in the mobile terminal information from the base station indicating available system carriers, and transmitting from the mobile terminal information indicating the terminal's capability to handle non-contiguous system carriers; detecting (102) at least one dynamic parameter indicative of the terminal's current capability to handle non-contiguous system carriers; determining (103) from the dynamic parameter whether a situation has occurred in which the terminal's capability to handle non-contiguous system carriers has changed; transmitting (104), in such case, a connection release request to the base station; and transmitting (105) a connection setup request and information indicating the terminal's changed capability to handle non-contiguous system carriers to the base station. Thus system carriers that can be handled by the terminal in the present situation can be allocated.