US 11,683,850 B2
Bluetooth reconnection method and related apparatus
Wei Ting Hsiao, Shenzhen (CN); Bin Peng, Shenzhen (CN); Liang Wang, Shanghai (CN); and Haw-Wei Shu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/634,664
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Aug. 6, 2020, PCT No. PCT/CN2020/107295
§ 371(c)(1), (2) Date Feb. 11, 2022,
PCT Pub. No. WO2021/027666, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 201910750864.8 (CN), filed on Aug. 14, 2019.
Prior Publication US 2022/0304094 A1, Sep. 22, 2022
Int. Cl. H04W 76/19 (2018.01); H04W 4/80 (2018.01); H04W 76/27 (2018.01); H04B 1/7156 (2011.01); H04W 68/02 (2009.01)
CPC H04W 76/19 (2018.02) [H04B 1/7156 (2013.01); H04W 68/02 (2013.01); H04W 76/27 (2018.02); H04B 2201/71346 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A BLUETOOTH reconnection method implemented by a BLUETOOTH connection system, wherein the BLUETOOTH reconnection method comprises:
sending, by a first device of the BLUETOOTH connection system, a first BLUETOOTH Low Energy (BLE) advertising signal to a second device of the BLUETOOTH connection system when a BLUETOOTH connection is disconnected, wherein the first BLE advertising signal instructs the second device to avoid paging to the first device;
sending, by the first device to the second device, a first page packet comprising a first device identifier of the second device;
sending, by the first device, a first frequency hopping synchronization (FHS) packet to the second device when receiving, within a preset duration and based on the first page packet, a first identifier (ID) packet from the second device, wherein the first ID packet comprises the first device identifier, and wherein the first FHS packet comprises a first BLUETOOTH address of the first device and first clock information of the first device;
receiving, by the second device, the first FHS packet;
switching, by the second device, to a connection state based on the first FHS packet;
sending, by the second device to the first device, a second ID packet comprising the first device identifier;
receiving, by the first device, the second ID packet; and
switching, by the first device, to the connection state based on the second ID packet.