Qualcomm Incorporated

Siddartha Shaik

Alexy Joseph

Anssi Haverinen

Raghavendra Bhat Noojady Krishna

Srinivas Krovvidi

Ayan Ghosh

Ravi Alamanda

Sridhar Nomula

Aniketkumar Lata

Vivek Mehta

Mallikarjuna G B

A Bluetooth component (e.g., a Bluetooth chip) and a digital signal processing (DSP) component (e.g., an audio DSP) of a device may directly handle link condition sensing (e.g., link quality monitoring) and audio bitrate determination. The Bluetooth component may perform link condition sensing (e.g., link quality monitoring) and the Bluetooth component and/or the DSP component may perform link condition processing and audio bitrate determination. Encoding scheme (e.g., audio bitrate) determination and modification may be performed independently by the Bluetooth component and DSP component, such that encoding schemes may be adapted to link conditions while other hardware (e.g., connected to the DSP) is operating in a low power or sleep state. In some cases, the Bluetooth component may sense link conditions and transmit bitrate information directly to audio encoding blocks of the DSP component.

Power optimized link quality detection and feedback

A compressed over pulse-code modulation (PCM) (CoP) format (e.g., for data transfer between a Bluetooth component and an audio digital signal processor (ADSP) component) may be modified to transport additional metadata (e.g., sideband data). Sideband data may be transported to convey parameter control information (e.g., control information for codec parameter control interfaces, such as information for quality mode changes), in band data (e.g., data specific parameters, such as timestamps for playback timing control and synchronization purposes), etc. Sideband data may be transported (e.g., communicated) over an interface between a Bluetooth component and an ADSP component while an applications processor is operating in a low power state or sleep mode. According to some aspects, the modified CoP format (e.g., a sideband packet) may include a sideband identification (ID) field and a sideband data payload (e.g., where the sideband ID field indicates the structure of a corresponding sideband data payload).

Power efficient metadata transport signaling mechanism for codec control and configuration

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Hyderabad Telangana, India

Siddartha Shaik