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Bluetooth device data transmission method and device

A data transmission method and a data transmission device technology, which are applied in connection management, advanced technology, climate sustainability, etc., can solve problems such as waste of time slot resources, and achieve the effect of saving time slot resources

Active Publication Date: 2019-11-05
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the slave device is in sleep mode, the master device still sends data packets to the slave device at each connection event (Connection Event, CE) point, so there is a waste of time slot resources

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  • Bluetooth device data transmission method and device
  • Bluetooth device data transmission method and device

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Embodiment Construction

[0024] According to the existing Bluetooth protocol, when the slave device is in sleep mode, after receiving the data packet sent by the master device (Master), it sends the corresponding response data packet to the master device, and then receives the master device after a certain interval. For data packets sent by the device, the interval length is latency×ConnInterval, latency is the number of delayed packet transmission cycles of the slave device, and ConnInterval is the packet transmission cycle of the master device. However, in some scenarios, the latency parameter value of the Bluetooth low energy device may be larger when connected, and ConnInterval is shorter. When the slave device is in sleep mode, the master device frequently sends the message to the slave device at each connection event point. Sending data packets, so there is a waste of time slot resources.

[0025] In the embodiment of the present invention, when the slave device is in the sleep mode, the master dev...

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Abstract

The invention discloses a data transmission method and device for Bluetooth equipment, and the method comprises the steps: judging whether slave equipment is in a sleep mode or not; Continuously carrying out transmission of connection events to the slave equipment for T times at the intervals of M connection event package transmitting periods when the slave equipment is monitored to be in the sleep mode, so as to monitor the operation of a response data package transmitted by the slave equipment, wherein M and T are positive integers. The method and device can improve the utilization efficiency of time slot resources, and avoids the waste of the time slot resources.

Description

Technical field [0001] The invention relates to the field of Bluetooth communication, in particular to a Bluetooth device data transmission method and device. Background technique [0002] In order to reduce the power consumption of the Bluetooth device, the Bluetooth low energy (Bluetooth Low Energy, BLE) slave device (Slave) is allowed to be in a sleep mode in the Bluetooth protocol. [0003] When the slave device is in sleep mode, after receiving the data packet sent by the master device (Master), it sends the corresponding response data packet to the master device, and then receives the data packet sent by the master device after a period of time. The interval time is latency×ConnInterval, latency is the number of delayed packet transmission cycles of the slave device, and ConnInterval is the packet transmission interval of the master device. [0004] However, when the slave device is in the sleep mode, the master device still sends data packets to the slave device at each conne...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W76/28H04W4/80
CPCH04W52/0251Y02D30/70
Inventor 龙光腾余贤
Owner SPREADTRUM COMM (SHANGHAI) CO LTD