NTN SSB Beam Subset Selection for Resource Conflict Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in non-terrestrial networks (NTNs), face challenges in efficiently managing synchronization signal blocks (SSBs) to avoid resource conflicts and optimize communication resources, leading to suboptimal performance due to the lack of effective mechanisms for determining and utilizing non-conflicting SSB beams.
Innovation Solution
The implementation of a method and apparatus that allow user equipment (UE) and network devices to autonomously determine or be indicated about a subset of SSB beams, enabling communication independent of resources associated with SSB transmission, thereby avoiding resource conflicts and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SSB beams are transmitted using all available resources, then synchronization signal coverage is improved, but resource conflicts and communication interference increase
Solution Approach 1:
The patent segments the SSB beam transmission by identifying and excluding specific beams from the full set of available beams. The network device determines a subset of SSB beams to transmit based on collision avoidance criteria, dividing the complete beam configuration into a reduced subset that avoids resource conflicts while maintaining adequate coverage for user equipment.
2Area of stationary object
If all SSB beams are used for transmission, then signal coverage is maximized, but communication efficiency decreases due to resource conflicts
Solution Approach 1:
The patent applies local quality by selectively transmitting SSB beams based on their specific characteristics and potential for collision. Instead of uniformly using all beams, the network device evaluates individual beam properties and transmission conditions to determine which beams should be included in the subset, optimizing the balance between coverage and efficiency for each local transmission scenario.
3Device complexity
If SSB transmission resources are allocated without collision avoidance, then resource allocation simplicity is maintained, but communication performance deteriorates
Solution Approach 1:
The patent implements preliminary action by having the network device determine the subset of SSB beams in advance before actual transmission occurs. The collision avoidance process is performed beforehand to identify which beams should be excluded, allowing the actual transmission to proceed with simplified resource allocation while maintaining high communication performance through pre-planned collision avoidance.
Data Source
AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus at a UE in NTN are provided. An example method at a UE may include obtaining an indication of a subset of one or more SSB beams included in a set of SSB beams. The example method may further include outputting for transmission or obtaining a communication independent of using any resources associated with SSB transmission via the subset of one or more SSB beams.