Dual Band Communication Module for Content Casting
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Solution Overview
Problem
Existing Wi-Fi communication devices face throughput degradation and time loss due to periodic switching between frequency bands when trying to connect to multiple external devices simultaneously, limiting the amount of content data that can be transmitted and causing delays in data transfer.
Innovation Solution
A method and device that utilize dual band communication modules, allowing simultaneous reception of content data from one frequency band and transmission to another, eliminating the need for frequent channel switching by integrating both modules into a single chip, enabling independent operation on different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device uses periodic switching between frequency bands to connect to multiple external devices, then the device can communicate with multiple devices, but the maximum available throughput degrades due to time division and switching losses
Solution Approach 1:
The device segments the communication functionality by separating the first band communication module and second band communication module into distinct operational units. Each module handles specific frequency band communications independently, allowing simultaneous operations without interference. This segmentation enables the device to maintain multiple active connections without requiring periodic switching, thereby preserving throughput while achieving multi-device connectivity.
2Adaptability or versatility
If a device performs periodic switching between frequency bands at MAC and PHY layers, then the device can manage multiple connections, but time is lost due to switching operations
Solution Approach 1:
The device achieves continuous useful action by enabling simultaneous reception and transmission operations across different frequency bands. The first band communication module receives content data continuously while the second band communication module transmits data continuously, without interruption from switching operations. This eliminates the time losses associated with periodic switching at MAC and PHY layers while maintaining the ability to manage multiple connections.
3Device complexity
If a device uses a single communication module for multiple frequency bands, then the device structure is simpler, but the amount of content data transmittable is limited
Solution Approach 1:
The communication functionality is segmented into separate first band and second band communication modules, each dedicated to specific frequency bands. This segmentation increases the total data transmission capacity by enabling parallel communications on multiple bands simultaneously, overcoming the limitation of single-module designs while maintaining manageable device structure through modular architecture.
Solution Approach 2:
The device transitions from single-band to multi-band operation by adding another dimension to the communication capability. Instead of sequentially switching between bands, the device operates on multiple frequency bands simultaneously, effectively adding a frequency dimension to the data transmission capacity. This enables significantly larger amounts of content data to be transmitted without increasing the fundamental complexity of the communication architecture.
Data Source
AI summary
A method and device for content casting services using Wi-Fi communication are disclosed are provided. The device includes a first band communication module for communicating with external devices over a first frequency band and a second band communication module for communicating with external devices over a second frequency band. The method includes detecting occurrence of a cast request event indicating content delivery, selecting, upon detection of the cast request event, a first external device possessing the indicated content, receiving the content from the selected first external device through the first band communication module, and transmitting the received content to a second external device through the second band communication module.