Switchable Radio Frequency Assembly for Multi-Band Communication

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Solution Overview

Problem

Existing communication devices face limitations in supporting combined communication of multiple frequency bands due to the need for multiple RF modules, which hinders user experience.

Innovation Solution

A radio frequency assembly with multiple power modules, transmit channels, and switchable radio frequency modules that support power amplification for different frequency bands, allowing simultaneous operation with different power and frequency channels, enabling enhanced communication capabilities such as DSDA, ENDC, and uplink CA.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple RF modules are used to support combined communication of different frequency bands, then communication capability is improved, but device complexity and cost increase

Engineering Contradiction:
Improvecommunication capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a shared resource architecture where multiple RF modules can dynamically share power modules and transmit channels. The switchable connection mechanism allows a single power module to serve multiple RF modules at different times, and transmit channels to be dynamically allocated to different RF modules based on communication needs. This multi-functional sharing approach enables support for multiple frequency bands without proportionally increasing the number of dedicated components.

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

Solution Approach 2:

The patent introduces dynamic switching mechanisms that allow RF modules to be flexibly connected to different power modules and transmit channels based on real-time communication requirements. The switchable connections enable the system to adaptively reconfigure resource allocation, allowing the same hardware resources to serve different frequency band combinations dynamically rather than being statically assigned.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple RF modules are used to support combined communication of different frequency bands, then communication capability is improved, but the number of required modules increases

Engineering Contradiction:
Improvecommunication capabilityVSAvoidnumber of RF modules
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges the functionality of multiple dedicated power supply chains and transmit channel paths into shared resources. By combining power modules and transmit channels into common pools that multiple RF modules can access, the system reduces the total number of individual components needed while maintaining the capability to support multiple frequency bands simultaneously or sequentially.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent makes power modules and transmit channels universal resources that can serve multiple RF modules across different frequency bands. This multi-functional design allows the same power module to power different RF modules at different times, and the same transmit channel to be allocated to different RF modules based on communication needs, thereby reducing the total component count.

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

3Reliability

If more power modules and transmit channels are allocated to each RF module, then reliability is improved, but device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic resource allocation where power modules and transmit channels are allocated to RF modules based on real-time communication needs rather than permanent assignment. This dynamic approach allows the system to provide redundant connections when needed for reliability while avoiding the permanent complexity of over-provisioning all possible connections for all scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the power supply and transmit channel resources into separate shared pools that can be independently managed and allocated. This segmentation allows flexible combination and allocation strategies where reliability can be enhanced by providing multiple possible power sources and channel paths without creating a fully redundant complex interconnection of every component.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250286566A1Radio frequency assembly and communication device
Publication Date: 2025.09.11 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US20250286566A1 patent drawing
  • US20250286566A1 patent drawing
  • US20250286566A1 patent drawing

AI summary

Provided are a radio frequency assembly and a communication device. The radio frequency assembly includes a plurality of power supply modules, a radio frequency transceiver, and a plurality of radio frequency modules. The radio frequency transceiver includes a first group of transmit channels and a second group of transmit channels, and at least one target radio frequency module among the plurality of radio frequency modules can be switchably connected to any power supply module and any radio frequency channel. Different radio frequency module is configured to support power amplification for radio frequency signals at different frequency bands, two radio frequency modules operating simultaneously among the plurality of radio frequency modules have different target power modules, and the two radio frequency modules operating simultaneously have different target radio frequency channels.