Wireless Bit Ordering Across OOK and OFDM for Faster Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in decoding wireless messages due to the need for separate processing of OOK and OFDM signals, leading to longer reception times and increased power consumption.
Innovation Solution
A method and device for wireless communications that reorder and combine OOK and OFDM signals, allowing for faster decoding by aligning and combining bit sequences across both signal types, enabling power-saving modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate processing of OOK and OFDM signals is used, then signal reliability is maintained, but reception time increases and power consumption increases
Solution Approach 1:
The patent combines OOK and OFDM signals into a unified signal structure where both signals are processed together rather than separately. The OOK signal carries a first set of bits while the OFDM signal carries a second set of bits that includes a reordering of the first set, allowing the receiver to process both signals simultaneously and extract information from either or both, thereby reducing total reception time while maintaining reliability through redundant information paths.
2Reliability
If separate processing of OOK and OFDM signals is used, then signal reliability is maintained, but power consumption increases
Solution Approach 1:
By merging the processing of OOK and OFDM signals into a single unified processing path, the patent reduces the total power consumption associated with separate processing chains. The receiver can monitor for wireless signaling during a set of multiple OOK symbols and process both signal types together, reducing the operational time of power-consuming components while maintaining reliable communication through the redundant bit sets.
3Productivity
If bit reordering is applied between OOK and OFDM signals, then decoding speed increases, but processing complexity increases
Solution Approach 1:
The patent applies preliminary bit reordering to the OFDM signal before transmission, where the second set of bits in the OFDM signal is pre-reordered relative to the first set of bits in the OOK signal. This preliminary arrangement allows the receiver to perform faster decoding by aligning bits from both signals without requiring complex real-time reordering operations, thus increasing decoding speed while keeping processing complexity manageable.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive wireless signaling including a first wireless signal and a second wireless signal during a same time duration. The first wireless signal and the second wireless signal may carry the same information. For example, the first wireless signal may be an on off keying (OOK) signal and the second wireless signal may be an orthogonal frequency division multiplexing (OFDM) signal. The OFDM signal may include one or more OFDM sequences overlaid on the on durations of the OOK signal. The ODFM signal may carry the same bits as the OOK signal, but in a different (e.g., reverse) order.