Inter-technology diversity for wireless error recovery
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Solution Overview
Problem
Conventional diversity techniques in wireless communication systems are limited by their reliance on a single air-interface technology, which restricts error correction and reliability under varying RF operating conditions, especially when transmissions are error-prone.
Innovation Solution
Implementing inter-technology diversity by concurrently transmitting and receiving data using multiple air-interface technologies, such as CDMA and LTE Advanced, to leverage the resilience of different technologies and enhance error correction through error-correction algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional diversity techniques use a single air-interface technology, then device complexity is reduced, but transmission reliability deteriorates under varying RF operating conditions
Solution Approach 1:
The patent segments the communication system into multiple air-interface technology components (e.g., LTE and WiMAX interfaces), allowing each to operate independently and provide diverse transmission paths. This segmentation enables the system to exploit differences in RF operating conditions across technologies while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The access terminal is designed with multi-functionality to support multiple air-interface technologies simultaneously. The device can selectively activate different interfaces based on RF conditions, achieving universal compatibility across technology standards while adapting to varying environmental conditions to improve transmission reliability.
2Reliability
If multiple air-interface technologies are used concurrently, then error correction capability is improved, but device complexity increases
Solution Approach 1:
The system dynamically selects and activates specific air-interface technologies based on real-time RF operating conditions and error rates. This dynamic adaptation allows the device to optimize error correction capability by using multiple interfaces only when necessary, rather than maintaining all interfaces active at all times, thus managing complexity while improving reliability.
Solution Approach 2:
The patent changes operational parameters by monitoring error rates and RF conditions to determine when to switch between single-interface and multi-interface modes. This parameter-based control enables the system to enhance error correction capability through multiple technologies only under adverse conditions, avoiding unnecessary complexity during normal operation.
3Adaptability or versatility
If a single air-interface technology is used, then ease of operation is maintained, but adaptability to varying RF conditions deteriorates
Solution Approach 1:
The access terminal autonomously monitors RF operating conditions and automatically selects the most appropriate air-interface technology without requiring manual intervention. This self-service capability allows the system to adapt to varying RF conditions while maintaining ease of operation, as the selection process occurs transparently in the background without user involvement.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring transmission success and RF conditions, then using this information to dynamically select optimal air-interface technologies. This feedback loop enables automatic adaptation to environmental conditions while preserving ease of operation, as the system self-adjusts based on real-time performance data.
Data Source
AI summary
A method and system is disclosed for inter-technology diversity. A transmitting device may concurrently transmit a communication unit, such as a data packet, on two or more different air interfaces to a receiving device. The receiving device may concurrently receive the two or more transmissions on two or more corresponding air interfaces, and may then apply forward error correction to the two or more received communication unit in order to recover an error-free version of the communication unit. The transmitting device could be a multi-modal base station (or other access element) of a wireless communication system, and the receiving device could be a multi-modal access terminal (AT) or other user equipment (UE). Additionally or alternatively, the transmitting device could be an AT or UE, and the receiving device could be a base station.