Dynamic Reference Signal Allocation for Non-Planar Antennas
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Solution Overview
Problem
Existing wireless communication systems face challenges in improving communication reliability due to low receive array gains resulting from fixed reference signal allocations, which are not optimized for diverse antenna module geometries.
Innovation Solution
The method involves a user equipment (UE) transmitting antenna module capability information, including geometric shape information, to a network entity, which then dynamically allocates and configures an appropriate number of reference signals (RSs) based on this information for adaptive beam weight learning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed number of reference signals are allocated for beamforming, then the system complexity is reduced and ease of operation is improved, but the receive array gain is insufficient and communication reliability deteriorates
Solution Approach 1:
The patent implements dynamic reference signal allocation where the network entity determines the number of RSs based on UE antenna module capability information. This allows the system to adapt the RS allocation dynamically according to the specific antenna geometry (planar or non-planar) rather than using a fixed allocation, thereby improving receive array gain and communication reliability without requiring overly complex predetermined configurations for all possible antenna types
Solution Approach 2:
The patent changes the parameter of reference signal quantity from a fixed value to a variable determined by antenna module characteristics. The network entity receives capability information indicating whether the UE has planar or non-planar antenna modules and adjusts the number of allocated RSs accordingly, optimizing beamforming performance for each antenna type while maintaining manageable system complexity through standardized capability reporting
2Reliability
If reference signal allocation is optimized for diverse antenna module geometries, then receive array gain and communication reliability are improved, but the signaling overhead and system complexity increase
Solution Approach 1:
The patent extracts only the essential antenna module capability information (planar or non-planar geometry indication) that is needed for optimal reference signal allocation. By taking out only this critical geometric characteristic rather than reporting complete antenna specifications, the system achieves geometry-optimized RS allocation while minimizing signaling overhead and avoiding unnecessary information transmission
Solution Approach 2:
The patent applies local quality optimization by tailoring the reference signal allocation specifically to the UE's antenna module geometry type. The network entity provides different numbers of RSs localized to the specific antenna configuration (planar vs. non-planar), ensuring optimal beamforming performance for each local antenna type without requiring global system reconfiguration or excessive signaling
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 associated with one or more antenna modules of the UE. 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. The UE may perform beamforming, in accordance with the received indication.