Quasi-Co-Location Signaling for Multi-TRP Beam Alignment
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Solution Overview
Problem
Next-generation wireless communication systems face challenges in supporting a large number of users and devices with high data rates while managing energy consumption, spectral efficiency, and latency, particularly due to the high propagation loss at extremely high frequencies, which requires efficient beam alignment and signaling quasi-co-location information in multi-TRP and multi-panel scenarios.
Innovation Solution
The implementation of methods and systems for generating and managing beam sets in 5G and New Radio communication systems, using analog phase shifters and massive MIMO antenna arrays to achieve beam alignment, and employing multi-beam signaling techniques that allow for simultaneous or time-division multiplexing of Tx beams for downlink and uplink transmissions, with flexible beam determination for data channels and control channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam alignment and quasi-co-location signaling are implemented in multi-TRP and multi-panel scenarios, then spectral efficiency and connectivity are improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent segments the beam management process by introducing separate signaling mechanisms for different quasi-co-location types (QCL-TypeA, QCL-TypeB, QCL-TypeC, QCL-TypeD) with distinct parameter sets. Each QCL type handles specific channel properties independently, allowing the system to manage complexity through modular organization while maintaining high spectral efficiency through precise beam alignment across multiple TRPs and panels.
Solution Approach 2:
The patent extends beam management from traditional single-TRP spatial dimensions to multi-TRP and multi-panel scenarios by adding temporal and hierarchical dimensions. The signaling framework operates across multiple layers (physical layer parameters, quasi-co-location relationships, beam associations) and time slots, enabling comprehensive beam alignment management without linearly increasing device complexity.
2Productivity
If beam alignment is performed across multiple panels and transmission points, then connectivity for multiple users is improved, but energy consumption increases
Solution Approach 1:
The patent implements preliminary beam alignment through pre-configured quasi-co-location relationships and pre-synchronized beam management procedures across multiple TRPs and panels. By establishing beam relationships in advance through standardized signaling frameworks, the system reduces real-time computational energy requirements while maintaining robust multi-user connectivity.
Solution Approach 2:
The patent optimizes energy consumption by dynamically adjusting beam management parameters such as quasi-co-location relationship updates, beam synchronization intervals, and signaling frequency based on channel conditions and traffic requirements. This allows the system to maintain connectivity for multiple users while adapting energy consumption to actual network demands.
Data Source
AI summary
Methods, systems, and devices for signaling quasi-co-location information in mobile communication technology are described. An exemplary method for wireless communication includes transmitting, from a first communication node and to a second communication node, a signal according to a beam set that comprises a first subset of B beams selected from a pool of beams, wherein B is positive integer. In an example, a beam of the beam set comprises one or more channel property assumptions, one or more reference signals (RSs), one or more RS sets, one or more spatial relation states, one or more quasi-co-location (QCL) states, one or more transmission configuration indicator (TCI) state, one or more spatial domain filters or one or more pre-coding filters.