Wireless Audio Packet Segmentation for Bandwidth and Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication environments, such as Bluetooth, the limited bandwidth leads to audio signal compression, resulting in sound cutoff and difficulty in providing high-quality audio streaming, while unused retransmission windows waste radio resources.
Innovation Solution
An electronic device that efficiently uses the retransmission window by transmitting additional packets, including both main and sub-compressed data, based on acknowledge signals received from an external device, to ensure continuous data transmission and prevent resource wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If audio signal compression rate is increased to reduce data transmission, then bandwidth consumption is reduced and sound cutoff is minimized, but audio information quality deteriorates
Solution Approach 1:
The patent segments audio data into multiple packets with different compression levels. Each packet contains compressed audio frames that can be independently transmitted and decoded, allowing the receiver to reconstruct audio quality based on which packets are received. This segmentation enables flexible quality adjustment without requiring uniform compression of all audio data.
Solution Approach 2:
The patent applies partial compression to different audio packets rather than uniform compression. By transmitting multiple packets with varying compression rates, the system provides excessive compression for some packets (lower quality) and minimal compression for others (higher quality), allowing the receiver to select optimal packets based on network conditions and quality requirements.
2Reliability
If packet retransmission window is used to ensure transmission reliability, then packet loss is reduced in poor wireless environments, but radio resources are wasted when packets are successfully transmitted
Solution Approach 1:
The patent dynamically adjusts the retransmission window size based on real-time wireless channel conditions and packet transmission status. When packets are successfully transmitted, the retransmission window is reduced or closed to avoid wasting radio resources. When packet loss is detected, the window is expanded to allow additional retransmission attempts. This dynamic adjustment optimizes the balance between reliability and resource consumption.
Solution Approach 2:
The patent implements feedback mechanisms where the receiver acknowledges successful packet reception and the transmitter adjusts retransmission behavior accordingly. The retransmission window is modified based on feedback signals indicating successful transmission, allowing the system to close unnecessary retransmission opportunities and conserve radio resources while maintaining reliability when needed.
Data Source
AI summary
According to various embodiments, an electronic device may include: a transceiver; and at least one processor, wherein the at least one processor is configured to: control the electronic device to establish a wireless communication connection between the electronic device and an external electronic device, generate, by encoding a first frame included in an audio stream, multiple pieces of compressed data corresponding to the first frame, transmit a first packet, including main compressed data corresponding to the first frame from among the multiple pieces of compressed data, to the external electronic device via the transceiver based on the wireless communication connection, and based on a first signal being received from the external electronic device via the transceiver based on the wireless communication connection within a specified time after transmission of the first packet, transmit a second packet, including first sub-compressed data corresponding to the first frame from among the multiple pieces of compressed data, to the external electronic device via the transceiver based on the wireless communication connection.