Base Station Signaling for Legacy and Updated Emission Rules

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Solution Overview

Problem

User equipment configured to operate under legacy regulations may not efficiently communicate after regulatory updates, such as the transition from NS 21 emission masks to more stringent RSS-195 emission limits, due to non-configurable filters in existing devices.

Innovation Solution

Implementing network signaling flags to indicate support for either legacy or updated regulations, allowing user equipment to communicate efficiently by configuring uplink and downlink resources accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If user equipment is configured to operate under legacy regulations, then existing devices can maintain current operation, but they cannot efficiently communicate after regulatory updates

Engineering Contradiction:
Improveoperation reliabilityVSAvoidregulation adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic regulation support by enabling user equipment to switch between legacy and updated regulation modes based on network signaling. The base station transmits regulation type indicators, and the UE configures its filters and communication parameters accordingly, allowing the system to adapt to different regulation requirements without hardware changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of user equipment by introducing regulation type indicators that signal whether to apply legacy or updated emission masks. The UE modifies its transmission parameters, filter configurations, and power settings based on the indicated regulation type, enabling seamless transition between regulatory frameworks.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If filters in existing devices are made configurable to support updated regulations, then regulatory compliance is improved, but device complexity increases

Engineering Contradiction:
Improveregulation complianceVSAvoidfilter configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces network signaling (regulation type indicators) as an intermediary between the base station and user equipment. This intermediary mechanism conveys the required regulation type to the UE, which then automatically configures its filters and parameters without user intervention or complex manual setup, reducing the perceived complexity for end users.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The user equipment is designed to automatically configure its own filters and communication parameters based on the regulation type indicator received from the base station. This self-service capability eliminates the need for manual filter configuration and reduces device complexity from the user perspective, while maintaining full regulatory compliance.

Inventive Principle:
Principle #25Self-service

3Reliability

If regulatory changes are implemented immediately, then updated emission requirements are enforced, but legacy devices must be decertified

Engineering Contradiction:
Improveemission requirement enforcementVSAvoiddevice compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements preliminary action by having the base station pre-configure regulation type indicators and transmit them to user equipment before communication begins. This allows legacy devices to be gradually phased in or out based on network deployment, enabling regulators to enforce updated requirements while maintaining backward compatibility during a transition period.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates a universal system that supports both legacy and updated regulations within the same network infrastructure. The base station and user equipment can operate under either regulation type based on signaling, making the system multi-functional and compatible with both old and new emission requirements without requiring separate certification processes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12513509B2Systems and methods for supporting evolving band regulations
Publication Date: 2025.12.30 APPLE INC
  • US12513509B2 patent drawing
  • US12513509B2 patent drawing
  • US12513509B2 patent drawing

AI summary

A base station sends system information to user equipment based on the user equipment detecting network coverage provided by the base station. The system information may include one or more network signaling flags indicative of a legacy regulation and an updated regulation (or a legacy version of a regulation and an updated version of the regulation) for operating on a frequency band. The user equipment transmits an indication to the base station as to whether it supports the legacy regulation and/or the updated regulation. The base station configures uplink and/or downlink resources on the frequency band for the user equipment based on the regulation indicated. The user equipment and the base station then communicate using the configured resources on the frequency band.