CN109039392B - Bluetooth device - Google Patents
Bluetooth device Download PDFInfo
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- CN109039392B CN109039392B CN201710432352.8A CN201710432352A CN109039392B CN 109039392 B CN109039392 B CN 109039392B CN 201710432352 A CN201710432352 A CN 201710432352A CN 109039392 B CN109039392 B CN 109039392B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 104
- 230000015654 memory Effects 0.000 claims abstract description 99
- 230000004044 response Effects 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 239000000872 buffer Substances 0.000 description 31
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a bluetooth device, comprising: a transmission memory, a transmission memory manager and a transmitter; a special transmitting data channel is configured between the transmitting memory and the transmitter; the transmitting memory is used for storing the decoded baseband transmitting data; the transmitting storage manager is used for controlling the transmitting storage to store data and controlling the transmitter to read the baseband transmitting data in the transmitting storage through the special transmitting data channel; the transmitter is adapted to process and transmit the baseband transmit data. The Bluetooth equipment has higher data transmission efficiency.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a Bluetooth device.
Background
Bluetooth is a wireless technology standard, and can realize data exchange between devices within a certain distance. Bluetooth devices refer to devices that can exchange data using bluetooth technology.
The bluetooth device may be used only for data transmission, and may be, for example, a pluggable bluetooth transceiver or the like, or may be a device integrating data generation and data transmission.
The data transmission efficiency of the existing Bluetooth equipment needs to be improved.
Disclosure of Invention
The technical problem solved by the invention is to improve the data transmission efficiency of the Bluetooth equipment.
To solve the above technical problem, an embodiment of the present invention provides a bluetooth device, including: a transmission memory, a transmission memory manager and a transmitter; a special transmitting data channel is configured between the transmitting memory and the transmitter; the transmitting memory is used for storing the decoded baseband transmitting data; the transmitting storage manager is used for controlling the transmitting storage to store data and controlling the transmitter to read the baseband transmitting data in the transmitting storage through the special transmitting data channel; the transmitter is adapted to process and transmit the baseband transmit data.
Optionally, a transmission control channel is configured between the transmitter and the transmission storage manager, and the transmission storage manager informs the transmitter of an address of baseband transmission data to be read through the transmission control channel, so as to control the transmitter to read the baseband transmission data in the transmission memory.
Optionally, the transmitter is further adapted to notify the transmission memory, through the transmission control channel, that the transmission of the fetched baseband transmission data is successful; the transmission memory manager is adapted to release the memory space storing the baseband transmission data in response to the notification of the transmitter.
Optionally, the bluetooth device further includes a decoder, connected to the host control interface, for decoding data received from the host control interface to obtain the baseband transmission data.
Optionally, the bluetooth device further includes: an antenna connected to the transmitter, the transmitter adapted to perform transmission through the antenna.
Optionally, the bluetooth device further includes: the device comprises a receiver, a receiving memory and a receiving memory manager, wherein a special receiving data channel is configured between the receiving memory and the receiver; the receiver is suitable for processing the received data to obtain baseband receiving data; the receive memory is adapted to store the baseband receive data; the receiving memory manager is used for controlling the receiving memory to store the baseband receiving data and controlling the receiver to write the baseband receiving data through the special receiving data channel.
Optionally, a receiving control channel is configured between the receiver and the receiving storage manager, and the receiving storage manager informs the transmitter of an address of baseband transmitting data written by the transmitter through the receiving control channel, so as to control the receiver to write the baseband receiving data.
Optionally, the receiver is adapted to notify the receiving memory manager through the receiving control channel that the baseband receiving data is to be written, and the receiving memory manager informs the transmitter of an address of the written baseband transmitting data in response to the notification of the transmitter.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, a special data channel is configured between the transmitting memory and the transmitter, the transmitting memory manager controls the transmitter to read the baseband transmitting data in the transmitting memory through the special transmitting data channel, and the transmitter processes and transmits the baseband transmitting data. Therefore, the transmitter can directly read data from the transmission memory, and further the baseband transmission data does not need to be copied to the transmitter memory for processing and transmission in the transmission process, so that the data transmission efficiency of the Bluetooth device in the embodiment of the invention is higher.
Drawings
FIG. 1 is a schematic diagram of a Bluetooth device;
fig. 2 is a schematic structural diagram of a bluetooth device in an embodiment of the present invention.
Detailed Description
As described above, the data transmission efficiency of the existing bluetooth device is to be improved.
Fig. 1 is a schematic diagram of a bluetooth device, which may include a transmit baseband buffer 11, a transmitter buffer 12, a transmitter 13, a receiver 14, a receiver buffer 15, a receive baseband buffer 16, and an antenna 17.
The transmit baseband buffer 11, the transmitter buffer 12, the transmitter 13, the receiver 14, the receiver buffer 15, and the receive baseband buffer 16 may be integrated in a bluetooth chip, and the bluetooth chip may further include a processor, and when executing a program, the processor may obtain data from a host, package the data, and write the data into the transmit baseband buffer 11.
The transmit baseband buffer 11 and the transmitter buffer 12 may be buffers selected in the memory of the bluetooth chip during data transmission or reception, and the location of the stored data selected each time may be different. The transmission baseband buffer 11 and the transmitter buffer 12 are not dedicated memories provided for data transmission and data reception.
Data interaction is performed between the transmitting baseband buffer 11 and the transmitter buffer 12 and between the receiving baseband buffer 16 and the receiver buffer 15 through buses, the way and the manner of performing data interaction can be realized based on a general interface, and after the data is controlled by the processor to be transmitted to the transmitter buffer 12, the data in the transmitter buffer 12 is processed by the transmitter 13 and then is transmitted through the antenna 17.
The transmission baseband buffer 11 may store data from the host interface, and may store baseband transmission data obtained by processing data acquired from the host interface in a software manner, where the data acquired from the host interface is processed by a processor when the processor runs software.
Since the transmitter 13 cannot directly read or store data from the transmission baseband buffer 11, the transmitter buffer 12 needs to be configured, and data replication needs to be performed multiple times during data transmission, so that data transmission efficiency is low.
In the embodiment of the invention, a special data channel is configured between the transmitting memory and the transmitter, the transmitting memory manager controls the transmitter to read the baseband transmitting data in the transmitting memory through the special transmitting data channel, and the transmitter processes and transmits the baseband transmitting data. Therefore, the transmitter can directly read data from the transmission memory, and further the baseband transmission data does not need to be copied to the transmitter memory for processing and transmission in the transmission process, so that the data transmission efficiency of the Bluetooth device in the embodiment of the invention is higher.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 2 is a schematic structural diagram of a bluetooth device in an embodiment of the present invention, including: a transmission memory 23, a transmission memory manager 22, a transmitter 24.
A dedicated transmission data channel is configured between the transmission memory 23 and the transmitter 24. The transmitter 24 may read data from the transmit memory 23 via a dedicated data channel, referred to herein as a dedicated transmit data channel. The transmitter 24 may operate directly on the data in the transmit memory 23.
The transmit memory 23 is for use by the transmitter 24, and the transmit data path between the transmit memory 23 and the transmitter 24 may be designed according to the specific coding and modulation requirements of the transmitter 24, i.e. a dedicated interface is configured between the transmitter 24 and the transmit memory 23. The transmission memory 23 may store therein the decoded baseband transmission data.
The transmission memory manager 22 is configured to control a transmission memory 23 to store data, and control the transmitter 24 to read the baseband transmission data in the transmission memory 23 through the dedicated transmission data channel. Transmit memory manager 22 may parse the data packets and transmit the data storage values to memory 23.
The bluetooth device may further include a decoder 21, and the decoder 21 may receive data through the host control interface and decode the data to obtain baseband transmission data. The data from the host may comprise a plurality of data packets and the transmit memory manager 22 may control the decoder 21 to parse the data packets from the host to obtain the baseband transmit data. The transmit memory management device may also control the transmit memory manager 22 to store baseband transmit data.
In the existing bluetooth device, the parsing of the data packet from the host is usually completed when the processor runs the program, which is inefficient. The decoder 21 and the transmission memory manager 22 are arranged in the embodiment of the invention, so that the data from the host can be processed more efficiently to obtain the baseband transmission data.
In particular implementations, a transmit control channel may be configured between transmitter 24 and transmit memory 23. It should be noted that fig. 2 only shows the connection relationship between the transmission memory 23 and the transmitter 24, and does not show the transmission control channel and the transmission data channel.
The transmission control channel may be independent from the transmission data channel, and the transmission memory manager 22 may inform the transmitter 24 of an address of baseband transmission data to be read through the transmission control channel, so as to control the transmitter 24 to read the baseband transmission data in the transmission memory 23.
After the transmitter 24 processes the baseband transmission data and transmits the processed data successfully, the transmitter 24 may notify the transmission memory 23 through the transmission control channel. The transmission memory manager 22 is adapted to release the memory space storing the baseband transmission data in response to the notification of the transmitter 24.
After freeing the memory space for the baseband transmit data, the transmit memory manager 22 may write the data from the decoder 21 to the freed memory space to save resources.
The bluetooth device may further comprise an antenna 28 to which said transmitter 24 is connected, said transmitter 24 being adapted to perform transmission via said antenna 28.
While the transmit path in a bluetooth device is described above, a bluetooth device may also include a receive path. Therefore, the bluetooth device may further include: a receiver 25, a receive memory 27, and a receive memory manager 26.
The reception memory 27 may store baseband reception data obtained by the receiver 25. A dedicated channel, referred to as a dedicated receive data channel in the present embodiment, may be configured between the receive memory 27 and the receiver 25. The receiver 25 can write the baseband reception data into the reception memory 27 through the reception dedicated data channel.
In the embodiment of the invention, the special receiving data channel and the special transmitting data channel are both special data channels and are not shared data channels. A dedicated data interface is arranged between the receiver 25 and the receiving memory 27.
The receive memory manager 26 may control the receive memory 27 to store baseband data and control the receiver 25 to write the baseband receive data through the dedicated receive data channel.
In a specific implementation, a control channel may be further configured between the receiver 25 and the receiving storage manager 26, and the receiving storage manager 26 may notify the transmitter 24 of an address of the baseband transmit data written by the receiving control channel, so as to control the receiver 25 to write the baseband receive data.
The receiver 25 may notify the receive memory manager 26 through the receive control channel that the baseband receive data is to be written, the receive memory manager 26 informing the transmitter 24 of the address of the written baseband transmit data in response to the notification by the transmitter 24.
The receive memory manager 26 may control the receive memory 27 to transmit the received data to the host through the host control interface.
Since the receiver 25 can write the baseband data through the dedicated receiving data channel, the receiver 25 does not need to set a buffer memory, and the data can be transmitted to the host through the host control interface, so that the efficiency of the data receiving process can be improved.
The Host Control Interface (HCI) may include a Universal Asynchronous Receiver Transmitter (UART) Interface, a Secure Digital Input Output Card (SDIO) Interface, a Universal Serial Bus (USB) Interface, and the like.
The bluetooth device of fig. 1 may receive or transmit data through the host control interface. Data received through the host interface is usually processed by a processor running program, and operations such as analyzing data packets from the host interface are performed. After the baseband transmission data is obtained, the baseband transmission data is stored in the transmission baseband buffer 11. The processor controls the baseband transmission data to be stored in the transmitter buffer 12 through the bus, and the transmitter 13 can read the data from the transmitter buffer 12, process the data and transmit the data. Therefore, the bluetooth device needs to copy data for many times in the process of transmitting data, the process is complex, and the data transmission efficiency is low.
The data receiving process of the bluetooth device is similar to the data transmitting process, the receiver 14 performs data receiving and processing in combination with the receiver buffer 15, after baseband receiving data is obtained, the processor controls the baseband receiving data to be stored in the receiving baseband buffer 16, and the baseband receiving data can be transmitted to the host through the host control interface.
Both the transmit baseband buffer 11 and the receive baseband buffer 16 may be randomly allocated from a volatile Access Memory (RAM) during reading and writing.
Referring to fig. 2, in an embodiment of the present invention, the transmit memory 23 is a memory that is adapted to the configuration of the transmitter 24 and has a common interface with the transmitter 24. By setting the transmission memory manager 22, the transmission memory manager 22 can be used to control the transmitter 24 to directly read and write data from the transmission memory 23. Therefore, the Bluetooth equipment in the embodiment of the invention can transmit data more efficiently.
In the embodiment of the present invention, in the process from the data acquisition of the host interface to the data transmission through the antenna 28, data copying is not required to be performed many times, and the data transmission flow is simpler.
In addition, since the transmission and reception of data have high requirements on the time efficiency, if the processor is used for control, the main frequency of the processor is required to be high. And, in consideration of response time, the efficiency is low by using a general-purpose processor to transmit and receive data.
Therefore, in the embodiment of the present invention, by designing the hardware decoder 21 and the hardware transmission storage manager 22, the data packet is analyzed and processed in a hardware manner, so that the efficiency is higher, and the requirement of the average execution speed (MIPS) of the single-length fixed-point Instructions when the processor runs the program can also be reduced, thereby reducing the working main frequency and power consumption of the system, and further reducing the cost of the bluetooth device.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A bluetooth device, comprising: a transmission memory, a transmission memory manager and a transmitter; a special transmitting data channel is configured between the transmitting memory and the transmitter;
the transmitting memory is used for storing the decoded baseband transmitting data;
the transmitting storage manager is used for controlling the transmitting storage to store data and controlling the transmitter to directly read the baseband transmitting data in the transmitting storage through the special transmitting data channel without buffering by the transmitter;
the transmitter is suitable for processing and transmitting the baseband transmission data;
a transmission control channel is configured between the transmitter and the transmission memory, and the transmission memory manager informs the transmitter of an address of baseband transmission data to be read through the transmission control channel so as to control the transmitter to read the baseband transmission data in the transmission memory.
2. The bluetooth device according to claim 1, wherein the transmitter is further adapted to inform the transmission memory through the transmission control channel that the transmission of the fetched baseband transmission data is successful; the transmission memory manager is adapted to release the memory space storing the baseband transmission data in response to the notification of the transmitter.
3. The bluetooth device of claim 1, further comprising a decoder coupled to the host control interface for decoding data received from the host control interface to obtain the baseband transmit data.
4. The bluetooth device of claim 1, further comprising: an antenna connected to the transmitter, the transmitter adapted to perform transmission through the antenna.
5. The bluetooth device of claim 1, further comprising: the device comprises a receiver, a receiving memory and a receiving memory manager, wherein a special receiving data channel is configured between the receiving memory and the receiver;
the receiver is suitable for processing the received data to obtain baseband receiving data;
the receive memory is adapted to store the baseband receive data;
the receiving memory manager is used for controlling the receiving memory to store the baseband receiving data and controlling the receiver to write the baseband receiving data through the special receiving data channel.
6. The bluetooth device according to claim 5, wherein a reception control channel is configured between the receiver and the reception memory manager, and the reception memory manager informs the transmitter of an address of the baseband transmission data written by the transmitter through the reception control channel to control the receiver to write the baseband reception data.
7. The bluetooth device according to claim 6, wherein the receiver is adapted to notify the reception memory manager through the reception control channel that the baseband reception data is to be written, the reception memory manager notifying the transmitter of an address of the written baseband transmission data in response to the notification of the transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432352.8A CN109039392B (en) | 2017-06-09 | 2017-06-09 | Bluetooth device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432352.8A CN109039392B (en) | 2017-06-09 | 2017-06-09 | Bluetooth device |
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| Publication Number | Publication Date |
|---|---|
| CN109039392A CN109039392A (en) | 2018-12-18 |
| CN109039392B true CN109039392B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710432352.8A Active CN109039392B (en) | 2017-06-09 | 2017-06-09 | Bluetooth device |
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| CN (1) | CN109039392B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200987166Y (en) * | 2006-09-29 | 2007-12-05 | 牛刚 | Device with antiloss and information protecting function |
| CN201608913U (en) * | 2010-02-04 | 2010-10-13 | 陈开发 | Portable type Bluetooth communication terminal |
| CN201639570U (en) * | 2010-01-05 | 2010-11-17 | 青岛海信移动通信技术股份有限公司 | CDMA (Code Division Multiple Access) mobile terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464289C (en) * | 2005-03-22 | 2009-02-25 | 联想(北京)有限公司 | Blue tooth data transmission processing apparatus and transmission method thereof |
| US9673864B2 (en) * | 2013-10-28 | 2017-06-06 | Ipcomm | Wireless hierarchical heterogeneous pico-net for ski control systems |
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2017
- 2017-06-09 CN CN201710432352.8A patent/CN109039392B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200987166Y (en) * | 2006-09-29 | 2007-12-05 | 牛刚 | Device with antiloss and information protecting function |
| CN201639570U (en) * | 2010-01-05 | 2010-11-17 | 青岛海信移动通信技术股份有限公司 | CDMA (Code Division Multiple Access) mobile terminal |
| CN201608913U (en) * | 2010-02-04 | 2010-10-13 | 陈开发 | Portable type Bluetooth communication terminal |
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| CN109039392A (en) | 2018-12-18 |
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