RRM Measurement Scheduling Across Multiple Candidate SCGs
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently performing Radio Resource Management (RRM) measurements outside Measurement Gaps (MGs) when multiple candidate Secondary Cell Groups (SCGs) are configured, particularly in scenarios like New Radio-Dual Connectivity (NR-DC), leading to complex and inefficient RRM measurement processes.
Innovation Solution
A wireless device and base station are configured to perform RRM measurements outside MGs using multiple searchers, where a first searcher is dedicated to the Primary Component Carrier (PCC) and a second searcher is shared among multiple Secondary Component Carriers (SCCs) and Secondary Component Carriers (SCCs) based on specific measurement cycles, optimizing the allocation of measurement opportunities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RRM measurements are performed on multiple candidate SCGs using traditional methods, then measurement coverage is improved, but measurement process complexity increases
Solution Approach 1:
The patent segments the measurement process by introducing two distinct searchers: a first searcher dedicated to measuring the PCC and a second searcher dedicated to measuring PSCCs and SCCs. This segmentation divides the complex measurement task into manageable parts, with each searcher handling specific carriers according to its capabilities, thereby reducing overall measurement process complexity while maintaining comprehensive measurement coverage across multiple candidate SCGs.
Solution Approach 2:
The second searcher is designed with multi-functionality to measure both PSCCs and SCCs across multiple candidate SCGs. This universal searcher can handle measurements on different carrier types and different SCGs, eliminating the need for separate dedicated searchers for each carrier type and reducing the overall system complexity while ensuring reliable measurement coverage.
2Productivity
If measurement opportunities are allocated to multiple carriers simultaneously, then measurement efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent segments resource allocation by assigning specific measurement opportunities to the first searcher for PCC and to the second searcher for PSCCs and SCCs. This segmentation simplifies resource allocation management by clearly defining which searcher handles which carriers, reducing allocation complexity while enabling simultaneous measurements on multiple carriers through coordinated searcher operations.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the measurement opportunities and searcher assignments before actual measurements begin. The network configures which carriers are monitored by which searcher in advance, allowing the searchers to efficiently execute measurements without real-time allocation decisions, thereby improving measurement efficiency while keeping resource allocation management simple.
Data Source
AI summary
The present disclosure relates to RRM measurement on multiple candidate SCGs. In an aspect, a wireless device may comprise at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio; wherein the processor is configured to receive, via the at least one radio, one or more reference signals from a cellular base station; and perform Radio Resource Management (RRM) measurement outside a Measurement Gap (MG) on the one or more reference signals on a Primary Component Carrier (PCC) using a first searcher, and ton one or more Primary Secondary Component Carriers (PSCC) corresponding to a plurality of Secondary Cell Groups (SCG) and a plurality of Secondary Component Carriers (SCC) using a second searcher, wherein the processor is configured to perform the RRM measurement on each carrier of the PCC, the one or more PSCCs and the plurality of SCCs based on a respective measurement cycle.