Terminal Device Carrier Aggregation BWP Switching
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Solution Overview
Problem
The high power consumption of 5G terminal devices due to broadband capabilities and fast baseband processing leads to reduced standby time and battery life, necessitating a solution to minimize energy usage.
Innovation Solution
A method for terminal devices that involves receiving and sending information through carrier aggregation, using first indication information to activate or deactivate carriers, bandwidth parts, and physical downlink control channel search spaces, allowing for quick adaptation to service changes and reducing power consumption by adjusting configurations based on load situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If broadband capabilities and fast baseband processing are implemented to achieve higher data transmission rates, then the data transmission rate is improved, but the power consumption of the terminal device increases
Solution Approach 1:
The patent implements dynamic BWP switching that allows the terminal device to adaptively change bandwidth parts based on current service requirements. When data transmission rate requirements are low, the device switches to a smaller BWP with fewer resource blocks, thereby reducing power consumption while maintaining the capability to switch back to larger BWPs when high data rates are needed. This dynamic adjustment resolves the contradiction by making the system flexible rather than fixed.
Solution Approach 2:
The patent changes the bandwidth parameter by introducing multiple bandwidth parts (BWPs) with different sizes and characteristics. The network can configure different BWPs (e.g., first BWP with smaller bandwidth, second BWP with larger bandwidth) and the terminal switches between them based on service needs. This parameter change allows the system to optimize between power consumption and data transmission rate by selecting appropriate bandwidth configurations.
2Adaptability or versatility
If multiple carriers and bandwidth parts are activated to improve service adaptability, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the total bandwidth into multiple bandwidth parts (BWPs), each with different resource block configurations. Instead of managing one large complex configuration, the system divides it into manageable segments that can be independently activated. The terminal device only needs to process and manage the currently active BWP, reducing the effective complexity while maintaining the ability to adapt to different service requirements through BWP switching.
Solution Approach 2:
The network pre-configures multiple BWPs with different parameters before the terminal needs them. When service requirements change, the terminal simply switches to a pre-configured BWP that matches the new requirements, rather than reconfiguring parameters in real-time. This preliminary configuration reduces the complexity of real-time decision-making and configuration management at the terminal device.
Data Source
AI summary
Provided are a method and device for receiving information and sending information. The method for receiving information is applied to a terminal device that transmits data by means of carrier aggregation, and the method includes: the terminal device receiving first instruction information sent by a network device, wherein the first instruction information is used to instruct the terminal device to execute at least two of the following: activating a target carrier, activating a target bandwidth part (BWP), activating a target physical downlink control channel (PDCCH) search space, switching the currently activated carrier to the target carrier, switching the currently activated BWP to the target BWP, and switching the currently activated PDCCH search space to the target PDCCH search space.