MPE Differential Reporting for Beam and Panel Uplink Overhead
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Solution Overview
Problem
Conventional methods for radio frequency maximum permissible exposure (MPE) value reporting in wireless communications systems are inefficient, leading to significant increases in uplink control information payloads when multiple MPE values are reported.
Innovation Solution
Implementing a differential reporting scheme where subsequent MPE values are reported as differential values relative to a first MPE value, organized on a per beam or per panel basis, reducing payload size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional methods are used to report multiple maximum permissible exposure values, then complete exposure information is provided, but uplink control information payload increases significantly
Solution Approach 1:
The patent changes the parameter representation method by using differential encoding. Instead of reporting absolute values for each maximum permissible exposure value, the system reports the first value absolutely and subsequent values as differences relative to previous values. This parameter transformation reduces the number of bits required to represent each value while preserving complete exposure information across multiple transmission aspects.
2Quantity of substance
If differential reporting is implemented, then payload size is reduced, but processing complexity increases
Solution Approach 1:
The patent implements dynamic adaptive reporting where the base station configures the UE with specific differential reporting parameters through control signaling. The system dynamically adjusts which transmission aspects (beams, antenna panels, spatial relations) require reporting and how they are differential-encoded, rather than using a static fixed structure. This dynamic configuration optimizes the balance between payload reduction and processing complexity based on current network conditions.
3Adaptability or versatility
If multiple exposure values are reported for different transmission aspects, then comprehensive beam management is achieved, but resource usage increases
Solution Approach 1:
The patent applies local quality by associating different maximum permissible exposure values with specific transmission aspects such as individual beams, antenna panels, or spatial relation sets. Each transmission aspect receives tailored exposure reporting based on its specific characteristics and usage patterns. This localized approach provides comprehensive beam management information where needed while avoiding unnecessary reporting for aspects that don't require it, thereby reducing overall uplink resource consumption.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive control signaling that includes an indication that the UE is configured to report multiple values associated with maximum permissible exposure. Each of the multiple values may be of a same type but associated with different transmission aspects of the UE, the different transmission aspects including at least different transmission beams or different antenna panels. The UE may transmit a first maximum permissible exposure value associated with a first transmission aspect of the UE. The UE may transmit a second maximum permissible exposure value associated with a second transmission aspect of the UE and transmitted as a differential value based at least in part on the first maximum permissible exposure value.