Die-to-Die Transceiver Carrier Partitioning
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Solution Overview
Problem
Conventional die-to-die communication systems require additional transmission lines for bidirectional data transmission, leading to inefficiencies and increased complexity, particularly in error detection and correction processes.
Innovation Solution
The implementation of carrier partitioning using radio frequency transceivers on each die, where data is transmitted on non-overlapping carrier signals over a single differential transmission line, enabling simultaneous bidirectional data transmission without interference, and allowing for immediate error detection and correction responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional transmission lines are used for bidirectional data transmission, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines bidirectional data transmission and error detection functions into a single transmission line. The first die transmits data while simultaneously transmitting error detection codes, eliminating the need for separate dedicated error detection lines and reducing overall system complexity while maintaining reliability
Solution Approach 2:
The single differential transmission line serves multiple functions: transmitting data bidirectionally, carrying error detection codes, and enabling simultaneous communication. This multi-functional approach reduces the number of required transmission lines while maintaining communication reliability
2Device complexity
If fixed schedules are used for error detection and correction, then device complexity is reduced, but productivity decreases
Solution Approach 1:
The system enables continuous error detection and correction by allowing the second die to immediately detect errors in received data and transmit correction codes back to the first die during the same time period, eliminating idle waiting periods associated with fixed schedules and maintaining continuous productive operation
Solution Approach 2:
The patent implements immediate feedback mechanisms where error detection codes are transmitted continuously, allowing the receiving die to detect errors and send correction codes back without waiting for scheduled intervals, thereby improving productivity while maintaining manageable device complexity
3Productivity
If simultaneous bidirectional transmission is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent segments the transmission signals by assigning different frequency ranges to different functions: the first frequency range carries data from the first die, while the second frequency range carries data from the second die and error detection codes. This frequency segmentation enables simultaneous bidirectional transmission without interference, achieving high productivity with manageable complexity
Solution Approach 2:
The system transitions from time-division multiplexing to frequency-division multiplexing, adding a frequency dimension to the transmission medium. This allows multiple signals to coexist simultaneously on the same transmission line without interference, enabling parallel bidirectional communication while maintaining simple transmission line architecture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables efficient, simultaneous bidirectional data transmission between dies using a standard single differential transmission line, reducing bandwidth waste and improving error handling by allowing immediate response to transmission errors without the need for fixed schedules.
Implementation Method 1
a first transceiver disposed on the first die to transmit first data modulated onto a first carrier signal having a first frequency
Implementation Method 2
transmit the modulated first data via a bidirectional differential transmission line to a second transceiver disposed on a second die
Data Source
AI summary
A transceiver disposed on a first die in a bidirectional differential die-to-die communication system is disclosed. The transceiver includes a transmission section configured to modulate a first data onto a carrier signal having a first frequency for transmission via a bidirectional differential transmission line; and a reception section configured to receive signals from the bidirectional differential transmission line, the reception section including a filter configured to pass frequencies within a first passband that includes a second frequency, the first frequency being outside of the first passband. According to some embodiments, the reception section is configured to receive, via the bidirectional differential transmission line, modulated data at the second frequency at a same time that the transmission section transmits the modulated data at the first frequency.