5G NR Power Class Configuration for FR2 Signaling
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Solution Overview
Problem
The lack of defined power classes for the FR2 band in 5G mobile communication hinders efficient transmission capability information management, as existing technologies rely on minimum peak effective isotropic radiated power (EIRP) and spherical coverage without standardized classification for new radio access technology (NR) devices.
Innovation Solution
A method to determine and transmit power class information based on minimum peak EIRP, maximum output power limits, and spherical coverage for NR bands, configuring power classes per band, including n257, n258, n260, and n261, with EIRP values and spherical coverage determined at specific CDF percentages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power class information is not standardized for FR2 band, then device flexibility is maintained, but signaling complexity increases and transmission efficiency decreases
Solution Approach 1:
The patent applies parameter changes by establishing standardized power class definitions for FR2 band devices, transforming the transmission capability information from unstandardized to standardized parameters. This enables efficient categorization and reduces signaling overhead by using predefined power class identifiers instead of transmitting detailed capability parameters for each device.
Solution Approach 2:
The patent implements local quality by defining power class information specifically for the FR2 band while maintaining separate power class definitions for FR1 band. This allows targeted standardization where needed (FR2) without imposing unnecessary complexity on existing systems (FR1), optimizing the balance between standardization benefits and system compatibility.
2Measurement precision
If power class information is transmitted in detail, then transmission capability precision is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the essential transmission capability characteristics into standardized power class definitions, separating the core capability information (power class) from detailed device-specific parameters. This extraction allows the network to identify device capabilities using compact power class identifiers while maintaining the ability to obtain detailed information when necessary, thus reducing routine signaling overhead.
Solution Approach 2:
Instead of transmitting detailed capability information and having the network determine power class, the patent inverts the approach by having devices report standardized power class identifiers directly. This inversion reduces signaling overhead while maintaining precision, as the power class definitions encapsulate the essential capability information in a compact form.
Data Source
AI summary
One disclosure of the present specification provides a method for a wireless device to transmit capability information. The method may comprise the steps of: generating the capability information including power class information; and transmitting the capability information to a serving cell. The power class information may be configured for each new radio access technology (NR) band. The power class information may be determined on the basis of minimum peak effective isotropic radiated power (EIRP), maximum output limit, and spherical coverage.