Dynamic Reference Signal Allocation for Multi-Boresight Antenna Modules
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing reference signals (RSs) for beamforming, particularly when using antenna modules with multiple boresight directions, leading to low array gain and reduced communication reliability.
Innovation Solution
The method involves a user equipment (UE) transmitting antenna module capability information, including geometric shape information based on multiple boresight directions, to a network entity, which then dynamically allocates and configures RSs to enhance beamformed communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If antenna modules with multiple boresight directions are used, then beamforming capability and coverage area are improved, but reference signal management complexity increases
Solution Approach 1:
The patent implements dynamic reference signal configuration where the network entity adjusts the number and arrangement of RSs based on real-time antenna capability information. The UE reports its antenna module configuration, and the network dynamically allocates appropriate RS resources, enabling adaptive beamforming management across multiple boresight directions without fixed complex infrastructure
Solution Approach 2:
The system changes operational parameters by adjusting the number of reference signals, their spatial arrangement, and measurement configurations based on the UE's antenna geometry. This allows the system to optimize RS management for different antenna module types (e.g., single-boresight vs. multi-boresight) without requiring a completely different system architecture
2Adaptability or versatility
If multiple reference signals are allocated for multi-boresight antenna modules, then beamforming performance is improved, but signal strength and reliability are reduced due to resource dilution
Solution Approach 1:
The patent applies local quality by tailoring reference signal configurations to specific spatial regions and antenna elements. Instead of uniformly distributing RS resources, the system concentrates RS energy in specific directions corresponding to active antenna modules, ensuring sufficient signal strength for beamforming in each local region while maintaining overall system adaptability
3Adaptability or versatility
If dynamic reference signal configuration is implemented, then adaptability to different antenna modules is improved, but processing complexity and time consumption increase
Solution Approach 1:
The system performs preliminary action by having the UE report its antenna module capability information in advance before actual beamforming operations begin. The network entity uses this pre-reported information to pre-configure appropriate reference signal arrangements, eliminating the need for time-consuming real-time analysis and configuration adjustments during active communication
Data Source
AI summary
Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE may transmit signaling indicating antenna module capability information including geometric shape information corresponding to one or more antenna modules of the UE. The geometric shape information is based on an availability of multiple boresight directions of the one or more antenna modules. The UE may receive an indication of a number of reference signals (RSs). The number of RSs is based on the antenna module capability information.