Cellular Transmit Mode Switching for Spectrum-Limited Bandwidth
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Solution Overview
Problem
Wireless communication systems face constraints in electromagnetic spectrum availability, limiting their ability to transmit and receive voice, data, and multimedia content effectively and at satisfactory rates due to bandwidth limitations.
Innovation Solution
A base station communicates with a destination device and assigns a reference index to an auxiliary device, which relays additional bits of information to the destination device, allowing the destination device to augment the received bits with predefined sequences, thereby conveying more information without direct transmission of all bits from the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional direct transmission methods are used, then the communication system is simple, but the bandwidth efficiency is limited and spectrum availability constraints reduce transmission effectiveness
Solution Approach 1:
The patent introduces auxiliary devices as intermediaries between the base station and destination device. The base station transmits information to auxiliary devices, which then relay the information to the destination device. This intermediary approach enables bandwidth efficiency improvements by utilizing multiple transmission paths and auxiliary devices with predefined sequences, while the base station and destination device maintain standard communication interfaces, limiting the complexity increase primarily to the auxiliary devices.
2Productivity
If more bandwidth is allocated for transmission, then the transmission rate improves, but the electromagnetic spectrum availability is limited and cannot be increased
Solution Approach 1:
The patent segments the information transmission by dividing it into multiple parts transmitted through different auxiliary devices. Each auxiliary device receives a portion of the information and relay it to the destination device. This segmentation allows the system to achieve higher effective transmission rates by utilizing multiple spectral resources simultaneously across different auxiliary devices, without requiring additional total bandwidth allocation from the base station.
Solution Approach 2:
The patent adds a spatial dimension to the transmission system by introducing multiple auxiliary devices at different locations. Instead of increasing bandwidth in the frequency dimension, the system utilizes the spatial dimension by deploying auxiliary devices that can receive and relay information independently, effectively increasing transmission capacity without consuming additional electromagnetic spectrum bandwidth.
3Productivity
If auxiliary devices are introduced to improve bandwidth efficiency, then spectrum efficiency increases, but the device complexity and system architecture become more complex
Solution Approach 1:
The auxiliary devices serve as intermediaries that simplify the overall system architecture by handling the complex tasks of receiving information from the base station, storing predefined sequences, and relaying combined information to the destination device. The base station and destination device can maintain their existing simple communication interfaces, while the auxiliary devices absorb the architectural complexity required for improved spectrum efficiency.
Data Source
AI summary
Systems/methods are disclosed wherein a first device is configured to perform operations comprising: responsive to information received from a second device, establishing at least three transmit modes comprising at least three respective air interfaces any two of which comprise a physical layer variant relative to one another; and storing the at least three transmit modes at the first device; then, communicating with the second device using a first transmit mode of said at least three transmit modes that are established and stored. At any given time, using at most one transmit mode of said at least three transmit modes that are established and stored; and selecting and using a second transmit mode of said at least three transmit modes that are established and stored responsive to: (i) a parameter associated with data that is to be transmitted, or (ii) an index received from the second device, comprising two bits of information.