AT Interface for Wireless Device Bitrate Recommendations
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Solution Overview
Problem
Current communication networks lack the ability to signal recommended bitrates for streaming sessions between processors on a wireless device, preventing effective application-level streaming service assistance.
Innovation Solution
Implementing an AT interface for exchanging bitrate recommendation requests, responses, and notifications between processors on a wireless device, including AT commands and unsolicited notifications, to facilitate uplink and downlink bitrate management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current communication networks use traditional signaling methods, then network infrastructure remains simple, but application-level streaming service assistance cannot be provided
Solution Approach 1:
The patent introduces an AT interface as an intermediary communication mechanism between processors on the wireless device. This interface enables the first processor (application layer) to exchange bitrate recommendation information with the second processor (modem layer), thereby achieving application-level streaming service assistance without requiring fundamental changes to the core network infrastructure.
2Speed
If bitrate recommendations are not signaled between processors, then device complexity remains low, but streaming latency increases and higher resolution streaming cannot be supported
Solution Approach 1:
The patent implements a feedback mechanism through the AT interface where the second processor (modem layer) receives bitrate recommendation information from the first processor (application layer), processes this information, and sends back responses or notifications. This closed-loop feedback enables dynamic bitrate adjustment, reducing streaming latency and supporting higher resolution content by continuously optimizing the transmission parameters based on real-time network conditions and application requirements.
Data Source
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AI summary
Various embodiments may provide streaming service downlink assistance and/or uplink assistance mechanisms for a wireless device using attention (AT) commands exchanged between a modem processor of the wireless device and another processor of the wireless device. Various embodiments may include an AT command that is a bitrate recommendation action command including an indication of a stream identifier, an indication of a requested bitrate, and an indication of a direction. Various embodiments may include an AT response that is a bitrate recommendation response, the bitrate recommendation response including an indication of a stream identifier, an indication of a bitrate recommendation, and an indication of a direction.