Transmitting packets to multiple peripheral devices using connected isochronous stream

By employing a multiple peripheral device BLE CIS method for transmitting packets to multiple BLE audio devices, the limitations of existing BLE audio systems are addressed, resulting in improved bandwidth, audio quality, and coexistence with WLAN.

WO2025059836A1 Publication Date: 2025-03-27QUALCOMM INC +6
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Patent Information

Application Number
PCT/CN2023/119597
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-19
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

Existing wireless communication systems, particularly in Bluetooth Low Energy (BLE) audio, lack an efficient mechanism to transmit the same data to multiple peripheral devices over connected isochronous stream (CIS) links, which affects maximum bandwidth, audio quality, and WLAN coexistence.

Method used

Implementing a multiple peripheral device Bluetooth Low Energy (BLE) connected isochronous stream (CIS) method that allows a user equipment (UE) to transmit a packet to multiple peripheral devices, such as earbuds, using a multicast manner, enabling synchronized acknowledgments without conflicts.

Benefits of technology

This approach improves the maximum achievable bandwidth, enhances audio quality, and enables better WLAN coexistence with BLE, particularly beneficial for gaming and media streaming applications.

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Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a packet to a first peripheral device and a second peripheral device via a multiple peripheral device Bluetooth Low Energy (BLE) connected isochronous stream (CIS). The UE may receive, from the first peripheral device in response to the packet, a first response based at least in part on a first wait time. The UE may receive, from the second peripheral device in response to the packet, a second response based at least in part on a second wait time. Numerous other aspects are described.
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