SSB Beam Mapping With Time-Shifted Common Channel Resources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in energy consumption due to static SSB-to-RO mapping, which do not account for uneven UE distribution or dynamic adaptation of PRACH resources, leading to wasted spectral capacity and unnecessary energy consumption.
Innovation Solution
Implementing a coordinated adaptation framework for common channels on a per-SSB beam basis, which shifts time-domain resources and allocates resources unevenly across beams, coordinating muting and shifting associated channels, and interlinking adaptations across interrelated channels, and interlinking adaptations across interrelated channels, and shifting associated common channels, thereby reducing gaps and clustering active resources, enabling earlier entry into low-power states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If static SSB-to-RO mapping is used, then system simplicity is maintained, but energy efficiency deteriorates due to wasted spectral capacity and unnecessary energy consumption
Solution Approach 1:
The patent applies dynamics by transitioning from static SSB-to-RO mapping to dynamic adaptation. The system dynamically adjusts PRACH resource allocation based on actual UE distribution and channel conditions, allowing the mapping to change over time rather than remaining fixed, thereby improving energy efficiency without excessive complexity
Solution Approach 2:
The patent changes key parameters including time-domain resource allocation, beam direction, and PRACH occasion configuration. By varying these parameters based on detected UE distribution patterns, the system optimizes energy consumption while maintaining operational effectiveness
2Productivity
If uniform PRACH resource allocation is used, then system simplicity is maintained, but spectral efficiency deteriorates due to uneven UE distribution
Solution Approach 1:
The patent applies local quality by allocating PRACH resources differently across different beams and time slots based on actual UE distribution. Instead of uniform allocation, the system identifies local patterns in UE distribution and allocates resources accordingly, improving spectral efficiency in high-density areas while reducing resources in low-density areas
Solution Approach 2:
The patent segments the PRACH resources into multiple occasions across different time slots and beams. This segmentation allows the system to independently control resource allocation for different spatial and temporal regions, enabling fine-grained optimization based on actual UE distribution patterns
3Loss of energy
If SSB beam muting is applied, then energy consumption is reduced, but timing coordination of dependent channels becomes complex
Solution Approach 1:
The patent merges the muting of SSB beams with coordinated muting of dependent channels (PDCCH, PRACH). Instead of treating channel muting independently, the system combines them into a coordinated approach where timing adjustments are synchronized across multiple channels, reducing overall energy consumption while managing timing complexity through integration
Data Source
AI summary
Various aspects of the present disclosure relate to techniques for energy-efficient synchronization system block (SSB) beam mapping. A user equipment is configured to receive signaling from a network indicating a mapping between one or more channels on a per-SSB beam basis; determine, based on the signaling, changes to timing and availability of a dependent channel, wherein the changes to the dependent channel are based on changes in time-domain resources of at least one of the one or more channels; and transmit signaling on one or more channels according to an updated mapping for time-shifted resources, wherein the time-shifted resources include time-domain resources of one or more common channels.