Reference Signal Resource Set Configuration for Beam Tracking
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Solution Overview
Problem
In wireless communication networks, configuring reference signals for user equipment and network devices to operate efficiently in power-saving modes, such as idle or inactive states, is challenging due to the need for time, frequency, and spatial synchronization, which can be affected by quasi-co-location information and beam tracking accuracy.
Innovation Solution
The method involves configuring a reference signal resource set based on quasi-co-location information, where user equipment and network devices receive or transmit sets of reference signal configurations that include quasi-co-collocation information, allowing for improved power management and synchronization by providing additional tracking reference signals to idle or inactive user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reference signals are continuously transmitted to maintain synchronization for idle or inactive user equipment, then time, frequency, and beam tracking accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic transmission of tracking reference signals (TRS) at configurable intervals rather than continuous transmission. The network device transmits TRS resources periodically, and the UE receives and processes these signals at specific time intervals to maintain synchronization while consuming less power compared to continuous monitoring.
Solution Approach 2:
The patent enables user equipment to autonomously select and process reference signals from multiple configured resource sets based on their quasi-co-location relationships. The UE independently determines which TRS resources to monitor and process based on the configured QCL information, reducing the need for network-controlled signaling and improving power efficiency through autonomous operation.
2Reliability
If multiple reference signal resource sets with different QCL information are configured, then synchronization accuracy and beam tracking are improved, but device complexity increases
Solution Approach 1:
The patent divides reference signal resources into multiple separate resource sets, where each set is associated with specific quasi-co-location information. This segmentation allows the system to manage complex synchronization requirements by organizing TRS resources into distinct, manageable groups, each with defined QCL relationships, thereby improving synchronization accuracy while maintaining manageable complexity through structured organization.
3Measurement precision
If additional tracking reference signals are provided to idle or inactive user equipment, then beam tracking accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent combines multiple tracking reference signal resource sets into a unified configuration framework where QCL relationships are established between different resource sets. By merging the management of multiple TRS resources under a single configuration structure with defined quasi-co-location relationships, the system reduces redundant signaling while maintaining the ability to provide accurate beam tracking through multiple reference signals.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for configuring a reference signal resource set based on quasi-co-location information. One method includes receiving, at a user equipment (UE), a set of reference signal (RS) resource set configurations. Each RS resource set configuration of the set of RS resource set configurations includes one quasi-co-collocation (QCL) information. The method includes receiving a plurality of reference signals of a RS resource set based on QCL information corresponding to the RS resource set. The RS resource set is configured according to a RS resource set configuration of the set of RS resource set configurations.