Dual-Channel WiMAX RF Base for Uplink Gain and Coverage
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Solution Overview
Problem
Conventional WiMAX data cards with 1T2R RF design suffer from small uplink transmit gain, limited coverage, weak indoor signals, and poor wall penetration due to restrictions in antenna base design and height limitations.
Innovation Solution
Implementing a 2T2R RF design with an additional data transmit channel, enabled by a triggering apparatus and device base configuration, which increases uplink transmit gain and coverage while reducing base station deployment costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If additional antenna bases are used to increase antenna gain, then antenna gain is improved, but device complexity and deployment cost increase
Solution Approach 1:
The patent segments the transmit function into two independent channels (first and second data transmit channels) within the same antenna base structure. Each channel can be independently controlled and activated, allowing the system to achieve higher effective transmit gain through spatial diversity without requiring additional physical antenna bases. The triggering apparatus selectively activates channels based on signal quality conditions.
Solution Approach 2:
The patent transitions from a single-channel transmit approach to a multi-channel transmit approach by adding temporal and spatial dimensions. The secondary data transmit channel operates in addition to the primary channel, creating a two-dimensional transmit space that increases coverage and gain without proportionally increasing physical structure complexity.
2Power
If base height is increased to increase antenna gain, then antenna gain is improved, but device portability and deployment flexibility are reduced
Solution Approach 1:
The patent divides the transmit function into multiple independent channels that can be selectively activated. The triggering apparatus monitors signal quality and activates the secondary data transmit channel when needed, achieving higher effective gain without increasing physical base height. This functional segmentation allows software-controlled gain enhancement rather than hardware height expansion.
Solution Approach 2:
The patent changes the operational parameters of the transmit system by introducing a controllable secondary channel. Instead of physically increasing base height, the system dynamically adjusts which channels are active based on signal conditions, achieving variable gain without changing the physical dimensions of the portable device.
3Device complexity
If 1T2R RF design is used, then device simplicity is maintained, but uplink transmit gain and coverage are limited
Solution Approach 1:
The patent makes the antenna base multi-functional by enabling it to support both single-channel (1T2R) and dual-channel (2T2R) operation modes. The triggering apparatus dynamically configures the system based on signal quality conditions, allowing the same hardware to provide different levels of functionality. This universality maintains device simplicity for basic operation while enabling enhanced performance when needed.
Solution Approach 2:
The patent introduces dynamic configurability to the RF design through the triggering apparatus that monitors signal quality and dynamically activates the secondary data transmit channel when conditions require enhanced gain. This dynamic approach allows the system to adapt between simple and complex operation modes based on real-time signal conditions, maintaining overall system simplicity while providing advanced functionality when necessary.
Data Source
AI summary
A system and method for data sending and receiving processing using a secondary data transmit channel is disclosed. The system comprises a device and a device base in which a secondary data transmit channel on the device is enabled when the device is coupled to the device base and receives a triggering signal from the device base. The system implements a 2T2R RF design in which the use of an additional data transmit channel increases the uplink transmit gain and coverage and reduces the deployment costs of base stations.