Wireless Communication Device Segmented Packet Processing
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Solution Overview
Problem
Wireless communication devices struggle to maintain compatibility with multiple communication schemes, particularly when the number of antennas increases, leading to delays in sending response signals within the time specified by existing standards like IEEE 802.11n, which affects throughput and compatibility.
Innovation Solution
The implementation of a wireless communication method that allows for the separation of packet formats into two portions, enabling the device to send an ACK signal within the allowed time for the first communication scheme while allowing sufficient processing time for the second, higher-frequency band scheme, such as VHT, by prioritizing the processing of the first format portion and using techniques like delayed ACK for the second portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the device processes packet formats according to higher-frequency band schemes (VHT) with multiple antennas, then communication throughput is improved, but the response time for sending ACK signals exceeds the allowed time specified by existing standards (11a/11n)
Solution Approach 1:
The patent segments the packet format into a first format portion (for 11a/11n compatibility) and a second format portion (for VHT high-throughput). By processing these portions separately with different timing requirements, the device can send ACK signals within the allowed time for the first portion while still benefiting from the higher throughput of the second portion.
Solution Approach 2:
The device performs preliminary processing of the first format portion to generate and send the ACK signal within the allowed time frame. This preliminary action ensures compliance with existing standards while the second format portion is processed subsequently to enable high-throughput communication.
2Adaptability or versatility
If the device is designed to support multiple communication schemes (11a, 11n, VHT), then compatibility is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal packet format structure that can accommodate multiple communication schemes (11a, 11n, and VHT) within a single device. The format includes a first portion for backward compatibility and a second portion for advanced features, allowing one device to perform multiple functions across different standards without requiring separate processing paths for each scheme.
Data Source
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AI summary
Provided is a wireless communication device and a wireless communication method which can maintain compatibility with a plurality of communication schemes and send a response signal back within the allowed time specified by each communication scheme. The wireless communication device includes a radio receiving unit (120) that receives a packet having a format conforming to a first communication scheme and including a second format portion conforming to a second communication scheme using a higher frequency band than the first communication scheme and a first format portion excluding the second format portion, and a processing unit (160) that, outputs a response signal at completion of demodulation and decoding of the first format portion, regardless of whether demodulation and decoding of the second format portion are completed or not.