Adaptive Reference Signal Configuration for Wireless Mobility
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Solution Overview
Problem
Existing mobility management systems in wireless communications face challenges in minimizing identification information in reference signals (RS) without compromising mobility management accuracy, especially in beam-based systems like 5G New Radio, where static RS signaling leads to high resource usage and interference, and lack of originating cell ID information causes complications in Automatic Neighbor Relation (ANR) and network reconfiguration.
Innovation Solution
The proposed solution dynamically adapts the configuration of reference signal transmissions to include or exclude link set identifier content based on network information regarding the current mobility status, using a method that determines the need for link set identifier content and adjusts its format and frequency to balance signaling load and functionality, allowing for seamless mobility management and ANR support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If link set identifier content is included with reference signal transmissions, then mobility management accuracy and ANR support are improved, but signaling overhead and resource usage increase
Solution Approach 1:
The patent applies dynamics by making the reference signal configuration adaptive rather than static. The network node dynamically determines whether to include link set identifier content based on current mobility status and network conditions. This allows the system to optimize between providing sufficient identification information for accurate mobility management and minimizing signaling overhead by only including such content when necessary.
Solution Approach 2:
The patent changes the parameter of reference signal configuration by adjusting the extent of link set identifier content included based on mobility status. When mobility management requires precise identification (e.g., during handover or network reconfiguration), the system increases the identification information content. When mobility conditions are stable, the system reduces or eliminates such content to minimize overhead.
2Stability of the object's composition
If static reference signal signaling is used, then consistent measurement results are achieved, but resource usage and inter-cell interference increase
Solution Approach 1:
The patent transitions from static reference signal signaling to dynamic adaptive signaling. Instead of always transmitting reference signals with full identification content, the system adapts the transmission based on whether mobility management actually requires such information at given moments. This maintains measurement consistency when needed while reducing resource consumption during stable periods.
Solution Approach 2:
The patent implements periodic evaluation of mobility status to determine when link set identifier content should be included. Rather than continuous transmission of full identification information, the system periodically assesses whether mobility management requirements warrant including such content, thereby reducing overall resource usage while maintaining measurement reliability when required.
3Quantity of substance
If minimal identification information is included with reference signals, then signaling overhead is reduced, but Automatic Neighbor Relation and network reconfiguration functionality are compromised
Solution Approach 1:
The patent dynamically changes the parameter of identification information content based on network operational mode. During normal operation, minimal or no link set identifier content is included to reduce overhead. However, when ANR updates or network reconfiguration are detected, the system increases the identification information content to enable proper neighbor relation management and reconfiguration support.
Solution Approach 2:
The patent uses feedback mechanisms by monitoring network information regarding mobility status, ANR status, and reconfiguration status. Based on this feedback, the system determines whether to include link set identifier content. This feedback loop ensures that identification information is provided precisely when needed for ANR and reconfiguration functions while minimizing overhead during normal operation.
Data Source
AI summary
The invention relates to methods of configuring reference signal transmissions from one or more network nodes (12) to a wireless communication device (14) to facilitate mobility measurement reporting (MRS) by the wireless communication device. The methods comprise determining whether there is a need to include link set identifier content with one or more of the reference signal transmissions responsive to network information regarding a current mobility status of a network configuration, where each of said reference signal transmissions originate from one of the one or more network nodes (12). The method further comprises defining a configuration for each of the reference signal transmissions responsive to the determination, and configuring the one or more network nodes to implement the reference signal transmissions according to the defined configurations. The invention also relates to corresponding apparatus in one or more network nodes (12) and wireless communication devices (14) as well as computer programs.