SSB Resource Selection by Mobility State to Avoid PCI Collisions
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Solution Overview
Problem
In wireless communication networks, particularly in multi-hop networks like 5G, synchronization signal block (SSB) transmissions from mobile and stationary network nodes can collide due to shared resources, leading to PCI collisions and unsuccessful communication.
Innovation Solution
Network nodes identify and utilize resources for SSB transmissions based on their mobility states, ensuring mobile and stationary nodes use different time and frequency resources to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mobile and stationary network nodes share the same resources for SSB transmissions, then resource utilization is improved, but PCI collisions occur leading to communication failures
Solution Approach 1:
The patent segments the SSB transmission resources by mobility state, creating separate resource sets for mobile nodes (first set) and stationary nodes (second set). This segmentation prevents PCI collisions by ensuring that mobile and stationary nodes transmit SSBs in different time-frequency resources, while still allowing both types of nodes to utilize available network resources effectively.
2Reliability
If separate resources are allocated for mobile and stationary nodes, then PCI collisions are reduced, but resource efficiency decreases
Solution Approach 1:
The patent changes the resource allocation parameters based on the mobility state parameter of the network node. Mobile nodes are configured with resource sets suitable for their mobility characteristics (e.g., more frequent transmissions, different time offsets), while stationary nodes use resource sets optimized for their static nature. This parameter-based differentiation resolves PCI collisions while maintaining overall resource efficiency through targeted allocation.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may identify one or more resources for transmitting one or more synchronization signal blocks (SSBs), the one or more resources being associated with a mobility state of the IAB node. The IAB node may transmit the one or more SSBs in the one or more resources. Numerous other aspects are provided.