Wireless Bluetooth communication mechanism capable of effectively reducing number of audio packet retransmission

• US 10,999,725 B2
• Filed: 12/25/2019
• Issued: 05/04/2021
• Est. Priority Date: 11/09/2017
• Status: Active Grant

• Current Assignee: Airoha Technology Corporation (MediaTek, Inc.)
• Original Assignee: Audiowise Technology Inc.
• Inventors: Sung, Chih-Wei, Liu, Pete Hsinhsiang, Jia, Jing-Syuan, Peng, Wei-Chung, Huang, Kuang-Hu, Chen, Jeng-Hong, Ho, I-Ken, Chen, Wei-Chih, Tseng, De-Hao
• Primary Examiner(s): Sandiford, Devan A
• Application Number:
  US16/726,838
• Publication Number:
  US 20200137545A1
• Time in Patent Office: 496 Days
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04R 1/1091 Details not provided for in groups H04R1/1008 - H04R1/1083
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames

Abstract

A method applied into a controller of a wireless Bluetooth device includes: providing a first flag and a second flag; asserting the first flag when the controller successfully receives the particular packet transmitted from the audio gateway; asserting the second flag when the controller successfully receives an acknowledgement from a secondary device wherein a reception of the acknowledgement indicates that the secondary device successfully receives the particular packet; and transmitting an acknowledgement of a particular packet to an audio gateway when the first flag and the second flag are asserted.

Claims

1. A method applied into a wireless Bluetooth device, comprising:

receiving a particular packet from an audio gateway through a first piconet; and

transmitting a particular acknowledgement to the audio gateway through the first piconet when the particular packet is received and an acknowledgement corresponding to the particular packet is received through a second piconet;

wherein the particular packet from the audio gateway through the first piconet is received at a first time slot, and the acknowledgement corresponding to the particular packet received through the second piconet is at a second time slot which is different from the first time slot; and

, the first time slot is later than the second time slot, and the particular acknowledgement is transmitted to the audio gateway through the first piconet at a specific time slot next to the first time slot.