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Method for expanding blue-tooth chip

A bluetooth chip and chip technology, applied in the field of communication, can solve the problems of inability to send commands or data to the bluetooth chip, inability to determine data and commands, and inability to realize the connection and communication of the bluetooth chip, etc.

Inactive Publication Date: 2006-03-01
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, when the Bluetooth host needs to communicate with multiple Bluetooth chips, since the Bluetooth host only provides an interface for connecting to the Bluetooth chip, it is impossible to realize the connection and communication with multiple Bluetooth chips on the hardware.
Moreover, the Bluetooth protocol stack in the prior art does not associate the connection handle of the link with the interface, so that even if the Bluetooth host expands the interface connected to the Bluetooth chip to multiple, the Bluetooth host cannot send commands or data to the specified Bluetooth interface. on the chip; or it is impossible to determine which Bluetooth chip the received data and commands come from
Therefore, the Bluetooth host in the prior art cannot realize connection and communication with multiple Bluetooth chips

Method used

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  • Method for expanding blue-tooth chip
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  • Method for expanding blue-tooth chip

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Embodiment Construction

[0036] The invention provides a method for extending a bluetooth chip, which is used to realize the connection and communication between a bluetooth host and at least two bluetooth chips.

[0037] see Figure 4 , the method for extending bluetooth chip provided by the present invention comprises the following steps:

[0038] Bluetooth host interface extension step (S410): expand the Bluetooth host interface from one to at least two, and expand the interface driver.

[0039] Because the Bluetooth host in the prior art only provides an interface for connecting and communicating with the Bluetooth chip, in order to support multiple Bluetooth chips, the Bluetooth host must expand multiple interfaces to perform one-to-one physical connection with multiple Bluetooth chips.

[0040] In practical applications, extending the interface of the Bluetooth host can be realized through an interface expander, and different interface expanders are selected according to the type of the interfa...

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Abstract

A method for expanding blue tooth chip includes expanding blue tooth host interface from one to two and expanding interface driving , expanding host controller interface driving software to let it support connection and communication of at least two blue tooth chips , connecting each interface of blue tooth host separately to each blue tooth chip and setting up connection link as well as generating connection listing , realizing communication between blue tooth host and blue tooth chip through command emitting and data receiving .

Description

technical field [0001] The invention relates to the communication field, in particular to a method for extending a bluetooth chip. Background technique [0002] Currently, Bluetooth technology, as an open wireless communication specification, uses the 2.4GHz ISM (Industry Science and Medicine) microwave frequency band for use between various fixed and mobile digital hardware devices. Bluetooth technology is based on low-cost short-distance wireless connection, supports point-to-point connection and point-to-multipoint connection, and supports data and voice services at the same time. [0003] The Bluetooth protocol stack used by Bluetooth technology can be divided into three parts: the underlying hardware module, the intermediate protocol layer (software module) and the high-end application layer. Wherein, the underlying hardware module includes a link management layer (LM, LinkManager), a baseband layer (BB, BaseBand) and a radio frequency layer (RF, Radio and Antenna). T...

Claims

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Application Information

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IPC IPC(8): H04B5/00H04L29/06
Inventor 王旭军
Owner HUAWEI TECH CO LTD
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