RFID Tag Energy Storage for Faster Power-Up and Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RFID tags, particularly passive ones without batteries, require frequent powering up and down, leading to inefficiencies in time and power resource utilization.
Innovation Solution
Incorporating a sensing component, energy storage component, power control command and beam control command processing unit, and optional waveform generator, power amplifier, or low noise amplifier to manage power and beam adjustments based on capability information exchanged with network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If passive RFID tags are used without batteries, then device complexity and cost are reduced, but the time needed for powering up and down increases and power resource utilization deteriorates
Solution Approach 1:
The energy storage component stores energy in advance during downlink time slots when the RFID tag is not transmitting, so that the tag can quickly power up for uplink transmissions without requiring frequent complete powering cycles, thus reducing powering up time while maintaining passive tag simplicity
Solution Approach 2:
The energy storage component maintains continuous energy availability by accumulating energy during idle periods and releasing it during transmission periods, eliminating the need for frequent power cycling and reducing the time lost during powering up and down operations
2Use of energy by moving object
If frequent powering up and down is performed, then power resource utilization is improved, but time efficiency deteriorates
Solution Approach 1:
Energy is stored in advance during downlink slots before uplink transmissions are needed, allowing the tag to maintain readiness without frequent power cycles, thus preserving communication efficiency while optimizing power resource utilization through controlled energy release
Solution Approach 2:
The energy storage component operates in periodic cycles, accumulating energy during downlink periods and utilizing it during uplink periods, which optimizes power resource usage while minimizing the frequency of complete power cycles and maintaining high communication efficiency
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radio frequency identification (RFID) tag may include a sensing component, an energy storage component, a power control command and beam control command processing unit, and at least one of a waveform generator, a power amplifier, or a low noise amplifier for providing a power signal to the RFID tag. The RFID tag may transmit capability information that indicates a waveform generation capability of the RFID tag or a power control capability of the RFID tag. The RFID may receive, from a network node, an indication to perform a power control operation or a beam adjustment operation based at least in part on the capability information. Numerous other aspects are described.