Implicit Beam ID Reporting via Uplink Control Attributes
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Solution Overview
Problem
In 5G NR, high-frequency signal transmission results in significant loss, necessitating beamforming to improve signal quality, but current LTE lacks a beam ID reporting mechanism, leading to increased signaling overheads and standardization complexity due to the need for new uplink control information and physical channels.
Innovation Solution
A method where a terminal implicitly indicates beam IDs by using attribute information of uplink information, such as resource, parameter, value, content, or format information, reducing the need for explicit beam ID reporting and simplifying LTE standardization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a new form of uplink control information (BFI) is added to report beam ID, then beam ID reporting can be implemented, but LTE standardization complexity increases
Solution Approach 1:
The patent merges beam ID reporting with existing uplink control information by using the physical uplink control channel (PUCCH) that already carries uplink control information. Instead of creating a separate reporting mechanism, the beam ID is embedded within the existing PUCCH structure, combining multiple functions into a single channel to reduce standardization complexity.
Solution Approach 2:
The physical uplink control channel is designed to serve multiple purposes: it carries both traditional uplink control information and beam ID reporting simultaneously. This multi-functional approach allows the same channel structure to handle different types of control data without requiring additional dedicated channels.
2Adaptability or versatility
If a new form of uplink control information (BFI) is added to report beam ID, then beam ID reporting can be implemented, but signaling overheads increase
Solution Approach 1:
The patent combines beam ID reporting with existing uplink control information transmission, so that beam ID data is carried within the same physical channel resources already allocated for control information. This merging approach avoids the need for separate dedicated resources, thereby reducing overall signaling overhead.
Solution Approach 2:
The uplink control channel is designed to handle multiple types of control data (traditional control information and beam ID reporting) within a single transmission framework, maximizing resource utilization and minimizing redundant signaling overhead.
3Reliability
If beamforming is used to improve signal quality in high-frequency transmission, then signal loss is reduced, but system complexity increases
Solution Approach 1:
The terminal autonomously performs beam measurement and selection by measuring beam reference signals and determining the optimal beam without requiring complex network-side coordination. The terminal self-manages the beamforming process by selecting beams based on measurement results and reporting only the necessary beam ID information.
Solution Approach 2:
The patent changes the reporting parameter from detailed beam measurement data to a simplified beam ID identifier. Instead of reporting comprehensive measurement results, the terminal reports only the beam ID that corresponds to the selected beam, reducing the complexity of beamforming implementation while maintaining signal quality.
Data Source
AI summary
An information transmission method, is provided, including, a terminal determines attribute information of uplink information based on a beam identifier, and sends the uplink information to a network side device based on the attribute information. After receiving the uplink information, the network side device determines the beam identifier based on the uplink information. In this process, the terminal implicitly indicates beam IDs of different selected beams by using attribute information of reported uplink information. Different beams correspond to different attribute information of the uplink information. In other words, each beam corresponds to specific attribute information of the uplink information. Implicitly indicating a beam ID to the network side device reduces LTE standardization complexity and reduces signaling overheads.