Dynamic Reference Signal Periodicity for Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing reference signal periodicity, leading to increased overhead and power consumption, as well as potential communication errors due to inaccurate synchronization.
Innovation Solution
A method where user equipment (UE) transmits an indication of reference signal periodicity information to a network node, which then configures a timing configuration for transmitting reference signals, optimizing periodicity based on UE-specific information to conserve resources and reduce errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reference signal periodicity is increased to improve synchronization accuracy, then communication reliability is improved, but overhead and power consumption increase
Solution Approach 1:
The patent implements dynamic reference signal periodicity adjustment where the network node configures different periodicities based on UE mobility state, capability, and channel conditions. Mobile UEs receive more frequent reference signals for accurate tracking, while stationary UEs use longer periodicities to reduce overhead and power consumption, making the system adaptive rather than static.
Solution Approach 2:
The patent changes the periodicity parameter of reference signals based on UE-specific information including mobility state, capability indicators, and channel quality. The network node receives UE information and configures timing parameters dynamically, adjusting the reference signal periodicity to optimize the balance between synchronization accuracy and resource efficiency for different UE scenarios.
2Reliability
If reference signal periodicity is increased to maintain accurate synchronization, then communication reliability is improved, but system overhead increases
Solution Approach 1:
The patent applies different reference signal periodicities to different UEs based on their local characteristics such as mobility state, capability, and channel conditions. Instead of using a uniform periodicity for all UEs, the network node configures UE-specific timing parameters, allowing each UE to receive reference signals at the optimal frequency for its specific situation, thereby reducing overall system overhead while maintaining necessary synchronization accuracy.
Solution Approach 2:
The system dynamically adjusts reference signal periodicity based on real-time UE information and channel conditions. The network node receives updates from UEs and reconfigures timing parameters as needed, making the reference signal transmission adaptive to current system state rather than following a fixed pattern, which optimizes the balance between reliability and overhead.
3Device complexity
If uniform reference signal periodicity is used for all UEs, then system simplicity is maintained, but resource efficiency decreases
Solution Approach 1:
The patent introduces UE-specific parameter configuration where the network node receives information about UE mobility state, capability, and channel conditions, then configures appropriate timing parameters for each UE. This allows the system to move from a simple uniform periodicity approach to a more sophisticated but efficient parameterized approach, where each UE receives reference signals at the optimal frequency for its specific situation.
Solution Approach 2:
The system transitions from static uniform periodicity to dynamic UE-specific periodicity configuration. The network node continuously receives UE information and adjusts timing parameters accordingly, making the reference signal transmission adaptive to current system state and UE requirements, thereby improving resource efficiency without excessive complexity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of information associated with a periodicity of reference signals (RSs). The UE may receive, based at least in part on the indication of information associated with the periodicity of the RSs, an indication of a timing configuration for receiving the RSs. Numerous other aspects are described.