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Bluetooth data transmission method and device

A technology of Bluetooth data and transmission method, applied in the field of Bluetooth data transmission method and device, can solve problems such as data transmission time slot conflict, and achieve the effect of avoiding transmission time slot conflict

Active Publication Date: 2020-03-20
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in practical applications, when classic Bluetooth is sending or receiving synchronous link data packets, there may be a connection event (Connection Event, CE) of Bluetooth Low Energy, that is, there are two data transmission time slots in the working mode. conflict situation

Method used

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

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Embodiment Construction

[0027] In the prior art, in the bluetooth 4.0 and later protocols, the working modes of the bluetooth device include the classic bluetooth mode and the low power bluetooth mode. In order to reduce the modification of the classic Bluetooth protocol, and to support Bluetooth low energy consumption, the two working modes are usually separated. However, in practical applications, when classic Bluetooth is sending or receiving synchronous link data packets, there may be a connection event (Connection Event, CE) of Bluetooth low energy, and the data transmission time slots of the two working modes may be A conflict occurred.

[0028] In the embodiment of the present invention, according to the time position of the received broadcast packet in the synchronous link data packet transmission cycle of classic Bluetooth, the transmission time slot of the Bluetooth low energy connection event is adjusted to the synchronous link of classic Bluetooth The transmission time slot not occupied ...

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Abstract

A Bluetooth data transmission method and device, the method comprising: when receiving a broadcast packet sent by a peer device, acquiring the time slot where the broadcast packet is received in the classic Bluetooth synchronous link data packet sending cycle Time position; according to the time position, adjust the sending time slot of the low-power bluetooth connection event, so that the sent time slot of the adjusted low-power bluetooth connection event is in the synchronization link data packet of the classic bluetooth Occupied send slot. By adopting the method and device, the data transmission time slots of the two working modes of Bluetooth can be effectively avoided from colliding.

Description

technical field [0001] The invention relates to the field of bluetooth communication, in particular to a bluetooth data transmission method and device. Background technique [0002] In Bluetooth 4.0 and subsequent protocols, there are two parts: Classic (Classic) Bluetooth and Low Energy (LowEnergy, LE) Bluetooth. The Bluetooth low energy protocol was introduced in the Bluetooth 4.0 protocol, and the maximum length of data in a data packet is 39 bytes (byte), which is transmitted at a rate of 1Mbps (megabits per second). The data length in the classic Bluetooth data packet is up to 1023 bytes, and the transmission rate can be 1Mbps, 2Mbps and 3Mbps. [0003] In order to reduce the modification of the classic Bluetooth protocol, and to support Bluetooth low energy consumption, the two working modes are usually separated. However, in practical applications, when classic Bluetooth is sending or receiving synchronous link data packets, there may be a connection event (Connecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/80H04W72/04H04W72/12
CPCH04W72/0446H04W72/1215Y02D30/70
Inventor 龙光腾李文杰
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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