Network Node Broadcast Control by Geographical Area
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In non-terrestrial networks, network nodes may transmit broadcast messages outside intended geographical areas, leading to increased network resource usage and UE battery consumption due to inefficient broadcast transmission management.
Innovation Solution
A network function, such as an AMF, communicates with network nodes to transmit information elements indicating the appropriate geographical area or portion for broadcast transmissions, enabling nodes to perform transmissions accordingly, even when they move in and out of service areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If network nodes transmit broadcast messages over large geographical areas, then coverage area is improved, but network resource usage increases and UE battery consumption increases
Solution Approach 1:
The patent applies local quality by transmitting broadcast messages with different resolutions based on the geographical area. High-resolution broadcast messages are transmitted only to UEs in the intended small geographical area, while low-resolution or no broadcast messages are transmitted to UEs outside this area. This resolves the contradiction by maintaining coverage for target UEs while avoiding unnecessary energy consumption for non-target UEs.
Solution Approach 2:
The patent segments the geographical area into an intended small geographical area and other areas. By dividing the coverage area and applying different broadcast transmission strategies to different segments, the system achieves precise control over where high-quality broadcast messages are transmitted, reducing overall network resource usage while maintaining coverage where needed.
2Area of stationary object
If network nodes transmit broadcast messages over large geographical areas, then coverage area is improved, but UE battery consumption increases
Solution Approach 1:
The patent applies local quality by transmitting broadcast messages with different resolutions based on the geographical area. High-resolution broadcast messages are transmitted only to UEs in the intended small geographical area, while low-resolution or no broadcast messages are transmitted to UEs outside this area. This resolves the contradiction by maintaining coverage for target UEs while avoiding unnecessary energy consumption for non-target UEs.
3Reliability
If network nodes perform broadcast transmissions without geographical area control, then service availability is improved, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the network function with the intended small geographical area information before broadcast transmissions occur. The network function uses this pre-known information to determine which UEs should receive high-resolution broadcast messages, eliminating the need for dynamic signaling during transmission and reducing signaling overhead while maintaining service availability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive an information element that indicates, for a geographical area associated with the network node, a resolution for the geographical area to be used for a broadcast transmission by the network node or a portion of the geographical area to be used for the broadcast transmission by the network node. The network node may perform the broadcast transmission in accordance with the information element. Numerous other aspects are described.