Wireless Terminal Group Information Reporting for Beam Management
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Solution Overview
Problem
In wireless communications, especially with wide or ultra-wide spectrum resources, the high frequency propagation loss becomes a significant challenge. Existing technologies face difficulties in efficiently managing antenna arrays for beam-forming, particularly in multi-TRP and multi-panel scenarios, which are crucial for beyond-5G communications.
Innovation Solution
The proposed solution involves a wireless communication method that utilizes group information to measure and report channel qualities and reference signals. This method includes receiving a report configuration, measuring reference signals, and transmitting reports containing channel qualities and group information. The use of group information allows for efficient beam management and panel selection, optimizing antenna arrays for better performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If massive MIMO with up to 1024 antenna elements is used to achieve beam alignment and high antenna gain, then propagation loss at high frequency is compensated, but implementation cost increases
Solution Approach 1:
The patent segments the large antenna array into multiple smaller panels, each with its own transceiver units. This allows the system to achieve beam forming capabilities without requiring a single massive 1024-element array, thereby reducing implementation cost while still compensating for propagation loss through coordinated multi-panel operation
Solution Approach 2:
The patent transitions from a single-panel architecture to a multi-panel architecture, adding the dimension of spatial distribution. Multiple panels can be positioned at different locations and orientations, enabling the system to achieve high antenna gain and beam alignment through spatial diversity rather than relying solely on increasing the number of elements in a single array
2Productivity
If multiple panels with multiple transceiver units are used to achieve high rank transmission, then transmission capability is enhanced, but beam management complexity increases
Solution Approach 1:
The patent merges the beam management functions across multiple panels by establishing group information that associates reference signals with specific panels. This unified approach allows the system to manage multiple beams from different panels through a coordinated framework, enhancing transmission capability while controlling beam management complexity through standardized association rules
Solution Approach 2:
The patent performs preliminary beam management by pre-establishing group information associations between reference signals and panels before actual data transmission. This preliminary configuration enables the system to quickly activate appropriate beams for high rank transmission without complex real-time beam management, thereby enhancing productivity while managing complexity
3Productivity
If group information is used to associate reference signals with panels, then beam management efficiency is improved, but measurement and reporting overhead increases
Solution Approach 1:
The patent creates universal group information structures that can serve multiple functions: associating reference signals with panels, identifying active panels, and enabling beam management across different transmission scenarios. This multi-functional approach improves beam management efficiency while reducing overhead by eliminating the need for separate signaling mechanisms for each function
4Device complexity
If analog phase shifters are used to implement beam forming, then implementation cost is reduced, but the number of controllable phases becomes finite
Solution Approach 1:
The patent merges the beam forming capabilities across multiple panels, each with analog phase shifters. By coordinating the phase shifts across multiple panels through group information associations, the system achieves effective phase control flexibility that compensates for the limitations of individual analog phase shifters, while maintaining low implementation cost
Data Source
AI summary
A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method comprises receiving, from a wireless network node, a first report configuration associated with one or more reference signals, measuring the one or more reference signals, and transmitting, to the wireless network node, a report comprising at least one of at least one first reference signal in the one or more reference signals, at least one channel quality or at least one first set of group information.