Dynamic BWP Activation for 5G Terminal Power Efficiency
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Solution Overview
Problem
Current 5G wireless communication systems lack an effective method for terminal devices to activate multiple bandwidth parts (BWP) simultaneously, which hinders efficient data transmission and increases power consumption due to inefficient resource allocation and signaling overheads.
Innovation Solution
A communication method where a network device sends first indication information to a terminal device to activate additional BWPs beyond the primary BWP, allowing the terminal device to switch and communicate in multiple BWPs, optimizing resource allocation and reducing power consumption by configuring different parameter sets for various service types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple BWPs are configured for terminal device to adapt to bandwidth capability, then adaptability is improved, but there is no effective method to activate multiple BWPs simultaneously which hinders efficient data transmission
Solution Approach 1:
The patent implements dynamic BWP activation by introducing activation indication information that allows the terminal device to switch between different BWP combinations based on service requirements. The network device can dynamically indicate which BWPs should be activated, enabling flexible adaptation to varying bandwidth needs while maintaining efficient data transmission through appropriate BWP selection.
2Productivity
If multiple BWPs are activated for simultaneous transmissions, then productivity is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the BWP activation indication into a structured format where activation indication information is divided into fields that separately identify first BWPs and second BWPs. This segmentation allows for efficient signaling by clearly delineating which BWPs are activated and their respective configurations, reducing ambiguity and minimizing the signaling overhead required to manage multiple active BWPs.
3Productivity
If terminal device communicates in multiple BWPs, then system transmission efficiency is enhanced, but power consumption increases due to inefficient resource allocation
Solution Approach 1:
The patent applies local quality by configuring different parameter sets for different BWPs, allowing the terminal device to optimize resource allocation locally within each BWP. By activating only the necessary BWPs for specific services and configurations, the terminal device can efficiently utilize resources in active BWPs while reducing power consumption by keeping other BWPs inactive, thus achieving local optimization of energy usage.
Data Source
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AI summary
This application discloses a communications method and apparatus. In the method, a network device sends first indication information to a terminal device, where the first indication information is used to indicate a to-be-activated BWP other than a primary BWP to the terminal device, and the primary BWP is a BWP keeping activated between the terminal device and the network device; and the network device communicates with the terminal device in the activated BWP and the primary BWP. In the foregoing method, the network device and the terminal device communicate with each other in at least two BWPs, that is, communicate with each other in the primary BWP and the BWP indicated by the first indication information. This helps to make full use of a bandwidth capability of the terminal device.