WTRU SSB-Based Power-Saving Sensing for Initial Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in optimizing power consumption during sensing-based initial access, leading to inefficiencies in battery life and network performance.
Innovation Solution
Implementing power-saving sensing techniques that reduce unnecessary power consumption during initial access by optimizing signal detection and processing, allowing devices to enter low-power states when not actively communicating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous sensing measurements are performed during initial access, then sensing accuracy and network performance are improved, but power consumption increases
Solution Approach 1:
The patent implements periodic sensing measurements instead of continuous measurements. The WTRU performs sensing measurements at specific intervals or occasions configured by the network, allowing the device to enter low-power states between measurement occasions while still maintaining adequate sensing accuracy for network performance.
Solution Approach 2:
The patent performs preliminary sensing measurements during idle or inactive states before actual data transmission begins. This allows the WTRU to detect channel conditions and perform necessary sensing operations in advance, reducing the need for continuous measurements during active communication periods.
2Productivity
If sensing measurements are performed frequently, then network performance is improved, but battery life deteriorates
Solution Approach 1:
The system configures periodic sensing measurement occasions with optimized intervals that balance network performance requirements with battery conservation. The network can adjust the periodicity based on service requirements, allowing frequent measurements when performance is critical and less frequent measurements when power saving is prioritized.
Solution Approach 2:
The patent dynamically adjusts sensing measurement parameters such as measurement frequency, bandwidth, and power levels based on current network conditions and service requirements. This allows the system to optimize the balance between network performance and battery life by changing measurement parameters rather than maintaining fixed frequent measurements.
3Reliability
If the device remains in active state for sensing operations, then sensing reliability is improved, but energy waste increases
Solution Approach 1:
The WTRU performs preliminary sensing operations and channel assessments during idle or inactive states before transitioning to active communication modes. This ensures that essential sensing reliability requirements are met before full-power transmission begins, reducing the duration of high-power states.
Solution Approach 2:
The system uses available downlink signals and existing network resources for sensing measurements without requiring dedicated high-power transmission periods. The WTRU leverages signals already present in the network for channel sensing and detection, eliminating the need for additional energy-consuming sensing transmissions.
Data Source
AI summary
A method performed by a wireless transmit/receive unit (WTRU). The method comprises: receiving, from a wireless network, control information indicative of a paging indication for sensing, a set of synchronization signal block (SSB) indices associated with one or more cell identifiers, and one or more conditions for received SSBs. The method further comprises receiving, from the wireless network, a plurality of SSBs respectively associated with the set of SSB indices, performing one or more measurements on the plurality of SSBs, determining that a first SSB of the plurality of SSBs meets the one or more conditions based on the one or more measurements, wherein the SSB is associated with a first index; and performing sensing measurements based on the first index until a termination condition is detected.