Cellular Relay Transmission Modes for Spectrum-Efficient Data Delivery
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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, relaying N bits to be conveyed via the auxiliary device, which then augments the information with L bits to the destination device, effectively transmitting N+L bits without directly transmitting L bits to the destination device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication systems use traditional direct transmission methods, then the system structure is simple, but the bandwidth efficiency is limited and spectrum availability constraints reduce transmission effectiveness
Solution Approach 1:
The patent introduces an auxiliary device as an intermediary between the base station and destination device. The auxiliary device receives N bits from the base station and autonomously generates and transmits an additional L bits to the destination device, effectively multiplying the information throughput without proportionally increasing base station transmission capacity. This intermediary approach resolves the contradiction by enabling higher bandwidth efficiency while maintaining relatively simple base station structure.
Solution Approach 2:
The communication system is segmented into multiple functional components: the base station, auxiliary device, and destination device. The information transmission task is divided such that the base station transmits N bits while the auxiliary device independently contributes L bits. This segmentation allows the system to achieve N+L total bits transmitted effectively, improving bandwidth efficiency without requiring the base station to handle the entire transmission burden alone.
2Productivity
If the base station transmits more bits directly to increase data rate, then the information transmission capacity increases, but the electromagnetic spectrum bandwidth requirements increase
Solution Approach 1:
The auxiliary device is configured to autonomously generate and transmit additional L bits without requiring direct control or additional bandwidth allocation from the base station. This self-service capability of the auxiliary device allows the system to increase information transmission capacity (N+L bits) without proportionally increasing the electromagnetic spectrum bandwidth consumed by the base station, as the auxiliary device operates independently to contribute its portion of the data.
3Ease of operation
If traditional communication methods are used, then the implementation is straightforward, but the communication range is limited and Quality-of-Service deteriorates
Solution Approach 1:
The system performs preliminary configuration by assigning reference indices to auxiliary devices and establishing their capabilities before actual data transmission. This preliminary setup enables the auxiliary devices to autonomously participate in transmission, extending communication range and improving Quality-of-Service while maintaining implementation simplicity through pre-established protocols and relationships between devices.
Data Source
AI summary
Inventive concepts are disclosed wherein a first device is configured to establish at least three transmit modes responsive to instructions received from a second device; to store the at least three transmit modes that are established and then to communicate with the second device by using at least one transmit mode of the at least three transmit modes that are established and stored. According to some embodiments, the first device selects and uses a transmit mode of the at least three transmit modes responsive to a parameter associated with data that is to be transmitted and/or responsive to an index, comprising two bits of information, received from the second device; wherein said at least three transmit modes differ from one another in at least a bandwidth, frequencies, subcarriers, an antenna configuration, a power level and/or a physical layer of an air interface.