SRLTE Device RF Chain Reconfiguration for Simultaneous LTE and 1X Reception
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Solution Overview
Problem
Single radio wireless communication devices are limited in their ability to simultaneously receive signals from multiple wireless networks, such as LTE and CDMA 2000 1×, due to their configuration which typically allows only one network to be actively connected at a time, leading to interruptions in data transmission and potential connection drops.
Innovation Solution
A method and apparatus for configuring wireless circuitry in a single radio wireless communication device to establish connections with both LTE and CDMA 2000 1× networks simultaneously by reconfiguring radio frequency signaling chains based on receive signal conditions, allowing for parallel reception and transmission with one network while maintaining connection with the other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single radio wireless communication device uses a single receiver to connect to one network at a time, then device complexity is reduced, but the device cannot simultaneously receive signals from multiple wireless networks
Solution Approach 1:
The patent implements dynamic reconfiguration of the single receiver between different wireless networks (LTE and CDMA 2000 1×) based on operational needs. The receiver can be tuned to different frequencies and protocols as required, allowing the device to adapt its reception capabilities dynamically rather than maintaining static simultaneous connections to multiple networks
Solution Approach 2:
The patent employs periodic tuning of the receiver to switch between LTE and CDMA 2000 1× networks at specific intervals or triggers. This periodic action allows the single receiver to service multiple networks sequentially, achieving functional versatility without requiring parallel hardware paths for each network
2Adaptability or versatility
If a single radio wireless communication device reconfigures its receiver to listen to another network, then it can monitor multiple networks, but data transmission with the current network is interrupted
Solution Approach 1:
The patent performs preliminary actions by buffering data and preparing transmission queues before the receiver tunes away to monitor other networks. This ensures that when the receiver returns to the original network, data transmission can resume with minimal disruption, maintaining connection reliability
Solution Approach 2:
The patent maintains continuity of useful action by implementing seamless handover mechanisms and background data buffering. While the receiver temporarily tunes away to monitor other networks, the system maintains the logical connection state and resumes data transmission immediately upon return, ensuring continuous service without noticeable interruption to the user
3Device complexity
If a single radio wireless communication device uses one receiver for both LTE and CDMA 2000 1×, then device complexity is reduced, but receive signal quality may deteriorate when switching between networks
Solution Approach 1:
The patent optimizes receive signal quality by dynamically adjusting receiver parameters such as center frequency, bandwidth, and gain settings according to the target network being accessed. When the receiver tunes to LTE or CDMA 2000 1×, it reconfigures its parameters to match the specific requirements of that network, ensuring optimal signal reception quality for each protocol
Data Source
AI summary
Methods, apparatuses and computer readable media are described that configure wireless circuitry of a wireless communication device. The wireless communication device establishes a connection to a first wireless network using first and second receiving signaling chains. In response to detecting a radio frequency tune-away event, the wireless communication device reconfigures only one of the radio frequency signaling chains to receive signals from a second wireless network when a set of receive signal conditions for the second wireless network is satisfied. The wireless communication device reconfigures both of the radio frequency signaling chains to the second wireless network when the set of receive signal conditions is not satisfied.