Network-Assisted Cell Selection for Passive Devices
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Solution Overview
Problem
As passive devices become more prevalent in dense wireless communication networks, selecting the appropriate base station from multiple available options becomes complex, leading to increased overhead signaling and interference.
Innovation Solution
A method for network-assisted cell selection, where a base station generates and transmits configuration information, including energy harvesting and reference signal configuration, to assist a user equipment (UE) in selecting an appropriate cell, thereby reducing power consumption and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If passive devices perform autonomous cell selection in dense networks, then device autonomy and basic functionality are maintained, but overhead signaling and interference increase
Solution Approach 1:
The network acts as an intermediary by providing configuration information that guides passive devices in cell selection. The base station transmits configuration information including energy harvesting information and reference signal configuration information, enabling devices to make informed selection decisions without autonomous complex processing, thereby reducing signaling overhead and interference while maintaining functionality.
Solution Approach 2:
The network performs preliminary actions by pre-configuring passive devices with cell selection parameters before the actual selection process. Configuration information is provided in advance, including energy harvesting capabilities and reference signal settings, allowing devices to efficiently select cells without requiring complex autonomous decision-making during operation.
2Device complexity
If passive devices autonomously select cells without network assistance, then device complexity is reduced, but communication efficiency and network optimization deteriorate
Solution Approach 1:
The network serves as a mediator that provides configuration information to simplify device operations. By transmitting energy harvesting information and reference signal configuration, the network enables passive devices to maintain low complexity while achieving improved communication efficiency through guided cell selection rather than autonomous decision-making.
3Ease of manufacture
If passive devices operate without energy harvesting capabilities, then device simplicity and manufacturing cost are maintained, but operational duration and energy independence worsen
Solution Approach 1:
Passive devices with energy harvesting capabilities practice self-service by harvesting energy from the environment to power their operations. The configuration information provided by the network includes energy harvesting parameters that enable devices to independently sustain operations without external power sources, extending operational duration while maintaining manufacturing simplicity through the use of passive harvesting mechanisms.
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that support network-assisted cell selection for a device. In a first aspect, a method of wireless communication includes generating configuration information associated with a cell selection procedure for a user equipment (UE). The cell selection procedure is associated with a passive device or a semi-passive device of the UE. The configuration information includes energy harvesting information, reference signal (RS) configuration information, or a combination thereof. The method further includes transmitting, to the UE, the configuration information. Other aspects and features are also claimed and described.