Dynamic Aggregation Control for Wireless Transceiver Coexistence

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Solution Overview

Problem

Wireless communication devices face interference and reduced throughput due to concurrent operations of different wireless transceivers, such as LTE and WLAN, which share the same spectrum, leading to coexistence issues and rate drops in data transmission.

Innovation Solution

Implementing dynamic aggregation control between wireless transceivers within a host device, where cooperation data is shared via a high-speed bus to coordinate activities, adjust aggregation parameters, and manage block acknowledgment sessions based on the status of each transceiver to minimize interference and optimize coexistence.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple wireless transceivers (LTE and WLAN) operate concurrently in a host device, then communication versatility and functionality are improved, but interference between transceivers increases and throughput decreases

Engineering Contradiction:

Improvecommunication versatilityVSAvoidthroughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent implements dynamic aggregation control where the aggregation parameter is adjusted in real-time based on the operational status of different wireless transceivers. The system transitions from static to dynamic configuration, monitoring transceiver activity and adapting the aggregation level accordingly to optimize throughput while maintaining multi-protocol versatility.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the aggregation parameter (a key communication parameter) dynamically based on detected transceiver status. When interference is detected or transceivers are active, the aggregation parameter is adjusted to reduce interference impact, directly addressing the throughput degradation caused by concurrent transceiver operations.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If aggregation parameter is increased to improve data transmission efficiency, then throughput is improved, but interference from concurrent transceiver operations worsens

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidinterference

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent employs feedback mechanisms where the system continuously monitors transceiver operational status and adjusts the aggregation parameter accordingly. This closed-loop control allows the system to respond to interference conditions in real-time, reducing aggregation levels when interference is detected and maintaining high efficiency when conditions permit.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The aggregation parameter is made dynamic rather than fixed, allowing the system to adapt its data transmission efficiency and interference characteristics based on real-time transceiver status. This dynamic adjustment resolves the contradiction by making the system flexible enough to optimize for either efficiency or interference reduction as conditions require.

Inventive Principle:

Principle #15Dynamics

3Reliability

If dynamic aggregation control is implemented to reduce interference, then coexistence is improved, but device complexity increases

Engineering Contradiction:

ImprovecoexistenceVSAvoidcontrol mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary control mechanism that manages the interaction between multiple wireless transceivers. This intermediary layer monitors transceiver status and coordinates aggregation parameter adjustments, providing a structured approach to coexistence management that balances reliability improvement with controlled complexity increase.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Productivity

If aggregation parameter is dynamically adjusted based on transceiver status, then throughput is maintained, but processing complexity increases

Engineering Contradiction:

ImprovethroughputVSAvoidprocessing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary monitoring of transceiver status and proactively adjusts aggregation parameters before severe interference occurs. This anticipatory approach maintains throughput by preventing degradation rather than reacting to it, reducing the need for complex real-time processing during active transmission.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9420600B2Dynamic aggregation for coexistence between wireless transceivers of a host device

Publication Date: 2016.08.16 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD

AI summary

A circuit includes a first wireless interface circuit that communicates packetized data to a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit communicates packetized data to a second external device in accordance with a second wireless communication protocol. A plurality of signal lines communicate at least four lines of cooperation data between the first wireless interface circuit and the second wireless interface circuit, wherein the cooperation data relates to cooperate transceiving in a common frequency spectrum.