Beam Orientation Indication for 5G NR Spatial Relation Signaling
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face inefficiencies in beam training processes, leading to increased latency and resource overhead due to the lack of effective methods for indicating spatial relations between nodes, which hampers the selection of optimal beams for communication.
Innovation Solution
The method involves determining and transmitting beam orientation information between nodes, including beam shape and direction, to facilitate beam training, thereby reducing latency and resource overhead by providing side-information such as 3D positioning and current orientation, allowing for the selection of appropriate beams during normal communication or prior to RACH procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional beam training procedures are used without spatial relation indication, then beam training can be performed, but beam-training latency and resource overhead increase
Solution Approach 1:
The patent applies preliminary action by determining and indicating spatial relations (beam orientation information) between nodes before beam training procedures are executed. The first node determines first beam orientation information for the second node to select beams for beam training with the third node, and determines second beam orientation information for the third node to select beams for beam training with the second node. This pre-establishment of spatial relation information enables the second and third nodes to perform beam training more efficiently by leveraging the indicated orientation data, thereby reducing beam-training latency and resource overhead while maintaining manageable procedure complexity
2Quantity of substance
If beam training is performed without spatial relation indication, then beam selection can occur, but resource overhead increases
Solution Approach 1:
The patent introduces spatial relation information (beam orientation information) as an intermediary that mediates between nodes during beam training. The first node transmits first beam orientation information to the second node and second beam orientation information to the third node. This intermediary information enables the second and third nodes to make more precise beam selections by understanding the spatial relationships and orientations of other nodes, thereby improving beam selection precision while reducing the resource overhead associated with exhaustive beam training procedures
Data Source
AI summary
The present disclosure includes a method, apparatus, and computer readable medium for wireless communications for determining, at a first node, first beam orientation information for a second node to select one or more beams for beam training with a third node, determining, at the first node, second beam orientation information for the third node to select one or more of beams for beam training with the second node, transmitting, to the second node, the first beam orientation information, and transmitting, to the third node, the second beam orientation information.