US 11,700,521 B2Granted

Bluetooth communication system and related bluetooth devices capable of initiating auto-pairing procedure without using bluetooth advertising packets

AssigneeRealtek Semiconductor Corp.

InventorChia Chun Hung

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Abstract

A Bluetooth communication system includes: an inquirer-side Bluetooth device arranged to operably generate and transmit a Bluetooth inquiry request; and a requester-side Bluetooth device arranged to operably receive and parse the Bluetooth inquiry request, and to operably generate and transmit a Frequency Hop Synchronization (FHS) packet containing a requester-side Bluetooth address and an Extended Inquiry Response (EIR) packet containing an auto-pairing request to the inquirer-side Bluetooth device. The inquirer-side Bluetooth device conducts an auto-pairing procedure with the requester-side Bluetooth device according to the contents of FHS packet and the EIR packet, but the inquirer-side Bluetooth device and the requester-side Bluetooth device does not switch to operating modes for transmitting or receiving Bluetooth advertising packets before conducting the auto-pairing procedure.

Claims10

Dependent claims

A Bluetooth communication system (100;

300), comprising:
an inquirer-side Bluetooth device (110;
310), comprising:
an inquirer-side Bluetooth transceiver circuit (112);
an inquirer-side packet parsing circuit (114), coupled with the inquirer-side Bluetooth transceiver circuit (112);
and
an inquirer-side control circuit (116), coupled with the inquirer-side Bluetooth transceiver circuit (112) and the inquirer-side packet parsing circuit (114), and arranged to operably generate a Bluetooth inquiry request and control the inquirer-side Bluetooth transceiver circuit (112) to send the Bluetooth inquiry request;
and
a requester-side Bluetooth device (120;
320), comprising:
a requester-side Bluetooth transceiver circuit (122), arranged to operably receive the Bluetooth inquiry request;
a requester-side packet parsing circuit (124), coupled with the requester-side Bluetooth transceiver circuit (122), and arranged to operably parse the Bluetooth inquiry request received by the requester-side Bluetooth transceiver circuit (122);
and
a requester-side control circuit (126), coupled with the requester-side Bluetooth transceiver circuit (122) and the requester-side packet parsing circuit (124), and arranged to operably generate a FHS (Frequency Hop Synchronization) packet comprising a requester-side Bluetooth address and an EIR (Extended Inquiry Response) packet comprising an auto-pairing request after the requester-side packet parsing circuit (124) parses the Bluetooth inquiry request, and to operably control the requester-side Bluetooth transceiver circuit (122) to transmit the FHS packet and the EIR packet to the inquirer-side Bluetooth transceiver circuit (112);
wherein the inquirer-side Bluetooth transceiver circuit (112) is arranged to operably receive the FHS packet and the EIR packet so that the inquirer-side Bluetooth device (110;
310) conducts an auto-pairing procedure with the requester-side Bluetooth device (120;
320);
wherein the requester-side Bluetooth device (120;
320) does not switch to operating modes for transmitting Bluetooth advertising packets before conducting the auto-pairing procedure, and the inquirer-side Bluetooth device (110;
310) does not switch to operating modes for receiving Bluetooth advertising packets before conducting the auto-pairing procedure.

17 more elements

An inquirer-side Bluetooth device (110;

310) of a Bluetooth communication system (100;
300), comprising:
an inquirer-side Bluetooth transceiver circuit (112);
an inquirer-side packet parsing circuit (114), coupled with the inquirer-side Bluetooth transceiver circuit (112);
and
an inquirer-side control circuit (116), coupled with the inquirer-side Bluetooth transceiver circuit (112) and the inquirer-side packet parsing circuit (114), and arranged to operably generate a Bluetooth inquiry request and control the inquirer-side Bluetooth transceiver circuit (112) to send the Bluetooth inquiry request, wherein after a requester-side Bluetooth device (120;
320) of the Bluetooth communication system (100;
300) receives the Bluetooth inquiry request, the requester-side Bluetooth device (120;
320) transmits a FHS (Frequency Hop Synchronization) packet comprising a requester-side Bluetooth address and an EIR (Extended Inquiry Response) packet comprising an auto-pairing request to the inquirer-side Bluetooth device (110;
310);
wherein the inquirer-side Bluetooth transceiver circuit (112) is arranged to operably receive the FHS packet and the EIR packet so that the inquirer-side Bluetooth device (110;
310) conducts an auto-pairing procedure with the requester-side Bluetooth device (120;
320);
wherein the inquirer-side Bluetooth device (110;
310) does not switch to operating modes for receiving Bluetooth advertising packets before conducting the auto-pairing procedure.

12 more elements

A requester-side Bluetooth device (120;

320) of a Bluetooth communication system (100;
300), comprising:
a requester-side Bluetooth transceiver circuit (122), arranged to operably receive a Bluetooth inquiry request transmitted from an inquirer-side Bluetooth device (110;
310) of the Bluetooth communication system (100;
300);
a requester-side packet parsing circuit (124), coupled with the requester-side Bluetooth transceiver circuit (122), and arranged to operably parse the Bluetooth inquiry request received by the requester-side Bluetooth transceiver circuit (122);
and
a requester-side control circuit (126), coupled with the requester-side Bluetooth transceiver circuit (122) and the requester-side packet parsing circuit (124), and arranged to operably generate a FHS (Frequency Hop Synchronization) packet comprising a requester-side Bluetooth address and an EIR (Extended Inquiry Response) packet comprising an auto-pairing request after the requester-side packet parsing circuit (124) parses the Bluetooth inquiry request, and to operably control the requester-side Bluetooth transceiver circuit (122) to transmit the FHS packet and the EIR packet to the inquirer-side Bluetooth device (110;
310), so that the inquirer-side Bluetooth device (110;
310) conducts an auto-pairing procedure with the requester-side Bluetooth device (120;
320);
wherein the requester-side Bluetooth device (120;
320) does not switch to operating modes for transmitting Bluetooth advertising packets before conducting the auto-pairing procedure.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/529,676Filed 18 Nov 2021 · us provisional application
Priority: TW 11013656830 Sep 2021
Published: US 2022/0167137 A126 May 2022
Granted: 11 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04W 4/80
Services specially adapted for wireless communication networks; Facilities therefor: services using short range communication, e.g. near-field…
H04W 76/14
Connection setup: direct-mode setup
H04W 84/18
Network topologies: self-organising networks, e.g. ad-hoc networks or sensor networks
H04W
Wireless communication networks