Predictive Beam Management for Faster Secondary Cell Group Setup
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in secondary cell group (SCG) setup due to excessive power consumption and latency caused by beam management and RACH procedures during the association of a UE with a secondary serving cell.
Innovation Solution
Implement predictive beam management techniques that associate synchronization signal block (SSB) and channel state information reference signal (CSI-RS) resources in a first serving cell with corresponding resources in a second serving cell, using linkage schemes and machine learning algorithms to identify optimal beams for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE performs beam measurements and beam management procedures to establish an access link with a secondary serving cell during SCG setup, then the access link can be established reliably, but power consumption increases and latency is incurred
Solution Approach 1:
The patent applies preliminary action by having the UE perform beam measurements on the first serving cell before the SCG setup procedure begins. The measurements obtained from the first cell are then used to predict and identify suitable beams for the second serving cell in advance, so that when the access link establishment is needed, the UE already has beam information ready, avoiding the need to perform extensive beam measurements during the actual SCG setup
Solution Approach 2:
The patent uses copying by associating and mapping beam information from the first serving cell to the second serving cell. The UE copies beam measurement results and characteristics from the first cell and applies them to identify beams for the second cell, rather than performing independent beam measurements for each cell. This copying approach maintains reliability while significantly reducing power consumption
2Reliability
If a UE performs beam measurements and beam management procedures to establish an access link with a secondary serving cell during SCG setup, then the access link can be established reliably, but latency increases
Solution Approach 1:
The patent performs beam measurements and analysis on the first serving cell before the SCG setup procedure is triggered. By completing beam characterization work in advance, the system eliminates the time-consuming beam measurement phase from the critical SCG setup path, thereby reducing latency while maintaining reliable access link establishment
Solution Approach 2:
The patent reduces latency by copying beam information from the first serving cell to the second serving cell. Instead of performing time-consuming beam measurements during SCG setup, the UE rapidly identifies suitable beams for the second cell by mapping previously obtained beam characteristics, significantly accelerating the access link establishment process
3Use of energy by moving object
If predictive beam management techniques are used to associate resources in the first serving cell with corresponding resources in the second serving cell, then power consumption and latency are reduced, but system complexity increases due to linkage schemes and machine learning algorithms
Solution Approach 1:
The patent applies universality by creating a linkage scheme that serves multiple functions: it associates beam resources between cells, enables predictive beam management, and provides a framework for machine learning algorithms. This single linkage infrastructure supports various beam management tasks, reducing the need for separate mechanisms and thereby limiting the increase in system complexity
Solution Approach 2:
The patent introduces a linkage scheme as an intermediary layer between the first and second serving cells. This intermediary structure manages the complexity of associating beam resources by providing a standardized mapping mechanism, while machine learning algorithms serve as intermediaries that process measurement data and generate beam predictions, encapsulating complexity in modular components
Data Source
AI summary
Disclosed are systems and techniques for wireless communications. For instance, a user equipment (UE) can obtain one or more channel measurements corresponding to a first beam received from a first network entity. In some cases, the UE can determine, based on the one or more channel measurements, one or more parameters corresponding to a second network entity. In some examples, the UE can transmit, based on the one or more parameters, an uplink signal to the second network entity.