Repeater Reference Signal Beam and Power Gain Configuration
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently determining and indicating power gain and beam configurations for network repeaters, particularly in scenarios involving smart repeaters, which require precise control of side control information to enhance signal quality and throughput.
Innovation Solution
A network node or base station is configured to receive and transmit configuration or control information for a set of reference signals, determining power gains, beam IDs, or TCI state IDs, and quasi-colocation type D properties to optimize repeater operations, including periodic or aperiodic indications and mapping relationships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional repeaters are deployed to enhance coverage, then signal quality in coverage holes is improved, but noise amplification occurs and network integration becomes complex
Solution Approach 1:
The patent introduces a gNB as an intermediary that performs advanced signal processing (joint processing or coordinated multipoint transmission) between the core network and the repeater. This intermediary capability allows the system to manage noise amplification centrally while the repeater focuses on signal forwarding, thus improving signal quality without proportionally increasing noise amplification.
Solution Approach 2:
The patent dynamically adjusts transmission parameters including power gain, beamforming vectors, and precoding matrices based on channel conditions and interference levels. By changing these parameters adaptively, the system optimizes signal quality while controlling noise amplification through centralized resource management at the gNB.
2Productivity
If smart repeaters with side control information processing are deployed, then throughput is improved, but device complexity increases
Solution Approach 1:
The patent segments the functionality between the gNB and the repeater. The gNB handles complex operations including side control information processing, resource allocation, and signal generation, while the repeater is simplified to perform primarily signal forwarding and basic amplification. This segmentation improves throughput through coordinated processing while reducing individual repeater complexity.
Solution Approach 2:
The gNB acts as an intermediary that performs the complex processing functions on behalf of multiple repeaters. Instead of each repeater independently processing side control information, the gNB centralizes this function, thereby improving overall system throughput through coordinated multi-point transmission while keeping individual repeater devices simpler.
3Measurement precision
If multiple reference signals are configured for power gain and beam measurements, then measurement precision is improved, but configuration complexity increases
Solution Approach 1:
The patent combines multiple reference signal measurements (power gain, beam quality, channel state information) into a unified measurement framework. By merging these measurements and processing them jointly at the gNB, the system achieves improved measurement precision through multiple observations while reducing configuration complexity through centralized management of the combined measurement process.
Data Source
AI summary
Embodiments of the present disclosure relate to methods and apparatuses for repeater. According to some embodiments of the present disclosure, a network node may include: a transceiver configured to receive configuration information for a set of reference signals (RSs); a processor coupled to the transceiver and configured to determine at least one of a power gain, a beam identity (ID), a transmission configuration indicator (TCI) state ID, or a quasi-colocation (QCL) type D property for each RS in the set of RSs; wherein the transceiver is further configured to transmit the set of RSs based on the determined at least one of the power gain, the beam ID, the TCI state ID, or the QCL type D property for each RS.