Wireless Receiver Packet Repetition Detection via Frequency Offset
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Solution Overview
Problem
Current wireless communication technologies fail to accurately identify message repetitions in wireless communications, leading to performance degradation due to incorrect decoding and potential errors.
Innovation Solution
A method and device for wireless communications that determine whether a received packet is a repetition of a previous packet based on packet acquisition metrics, specifically by comparing frequency offsets within a predefined threshold, allowing for combined processing of repetitive packets when identified as such.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If typical wireless network technology is used to receive and process packets, then the basic communication function is maintained, but the system cannot accurately identify message repetitions leading to decoding errors and performance degradation
Solution Approach 1:
The system performs preliminary comparison of packet acquisition metrics (such as received signal strength indicator RSSI or reference signal received power RSRP) between sequentially received packets before proceeding to decoding. By pre-identifying potential repetitions using the metric difference threshold, the system avoids unnecessary decoding operations on duplicate packets, thereby improving both identification accuracy and decoding reliability
Solution Approach 2:
The patent introduces packet acquisition metrics as an intermediary parameter to facilitate packet repetition identification. Instead of directly comparing packet contents which would be computationally intensive, the system uses metrics such as RSSI or RSRP differences as a mediator to indirectly identify repetitions. This intermediary approach enables accurate identification while maintaining system reliability
2Reliability
If all received packets are processed independently without repetition identification, then processing simplicity is maintained, but communication performance degrades due to incorrect decoding of repetitive packets
Solution Approach 1:
The system performs a preliminary check by comparing packet acquisition metrics before committing to full packet processing. If the metric difference between sequentially received packets falls within a predefined threshold, the system identifies them as repetitions and skips redundant decoding operations. This preliminary action improves communication performance by avoiding incorrect decoding while adding minimal processing complexity
Solution Approach 2:
Instead of performing complete packet decoding for every received packet, the system applies partial processing by first evaluating the packet acquisition metric difference. Only packets that pass this preliminary filter (those with metric differences exceeding the threshold) undergo full decoding. This partial action approach enhances communication performance by focusing processing resources on unique packets while maintaining manageable system complexity
3Measurement precision
If packet repetition identification is implemented using detailed content comparison, then identification accuracy improves, but processing time and computational resources increase significantly
Solution Approach 1:
The patent extracts and utilizes specific packet acquisition metrics (such as RSSI or RSRP values) from the received packets for comparison purposes. By extracting only these relevant metric parameters rather than performing comprehensive content comparison of entire packets, the system achieves sufficient identification accuracy while dramatically reducing processing time and computational resource requirements
Solution Approach 2:
Instead of copying and comparing entire packet contents which would be time-consuming, the system copies only the essential acquisition metrics from sequentially received packets for comparison. This selective copying approach maintains identification accuracy by focusing on the most discriminative parameters while minimizing processing time and resource consumption
Data Source
AI summary
Embodiments of a device and method are disclosed. In an embodiment, a method of wireless communications involves at a receiver, receiving a first packet, subsequently, at the receiver, receiving a second packet, and determining whether the second packet is a repetition of the first packet based on packet acquisition information associated with the first and second packets.