CN103746721B - Wireless communication module - Google Patents
Wireless communication module Download PDFInfo
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- CN103746721B CN103746721B CN201310745920.1A CN201310745920A CN103746721B CN 103746721 B CN103746721 B CN 103746721B CN 201310745920 A CN201310745920 A CN 201310745920A CN 103746721 B CN103746721 B CN 103746721B
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Abstract
The open a kind of wireless communication module of the present invention, including base band and logic control circuit, GSM/GPRS radio-frequency module and close-coupled processing circuit, described GSM/GPRS radio-frequency module carries out radio signal transmission under controlling in described base band and logic control circuit, and described close-coupled processing circuit carries out data transmission under controlling in described base band and logic control circuit by the way of Wi Fi, bluetooth and frequency modulation.The present invention can support number of different types wireless data transmission simultaneously.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of integrated GSM/GPRS module, Wi-Fi,
The functions such as bluetooth (Bluetooth), frequency modulation (Frequency Modulation, FM) wireless
Communication module.
Background technology
Along with development in science and technology, radio communication is widely used in people's daily life.Example
As, mobile phone, notebook computer, panel computer, Unionpay's POS etc. is all supported to use radio communication
Agreement communicates.But, the wireless communication module business of current various electronic products is single,
User can not be met simultaneously need to the requirement of several different types of wireless data transmission.
Summary of the invention
It is an object of the invention to provide a kind of number of different types wireless data transmission of support simultaneously
Wireless communication module.
For solving the technical problem of the present invention, the present invention provides a kind of wireless communication module, including base
Band and logic control circuit, GSM/GPRS radio-frequency module and close-coupled processing circuit, described
GSM/GPRS radio-frequency module carries out radio frequency under controlling in described base band and logic control circuit
Signal transmits, and described close-coupled processing circuit is under controlling in described base band and logic control circuit
While carrying out GSM/GPRS radio signal transmission by the way of Wi-Fi, bluetooth and frequency modulation
Carry out data transmission；
Described close-coupled processing circuit includes at GSM/GPRS signal processing unit, Wi-Fi signal
Reason unit, Bluetooth signal processing unit and FM signal processing unit, described Wi-Fi signal processing
Unit, described Bluetooth signal processing unit, described FM signal processing unit and described
GSM/GPRS signal processing unit is integrated in same chip internal；
Described Wi-Fi signal processing unit, described Bluetooth signal processing unit, described FM signal
Processing unit is respectively used to process Wi-Fi signal, Bluetooth signal and FM signal, described
GSM/GPRS signal processing unit is for passing through the data communication of Wi-Fi or Bluetooth short distance
GSM/GPRS wireless network is transmitted；
Wherein, the Wi-Fi signal of described close-coupled processing circuit is connect by the SDIO of described chip
Mouth is transmitted, and the PCM that the Bluetooth signal of described close-coupled processing circuit is by described chip
Or serial ports is transmitted, and described close-coupled processing circuit is additionally operable to the I2C by described chip
Or serial ports sends control signal, described control signal be used for controlling described Wi-Fi signal processing unit,
Described Bluetooth signal processing unit and the initialization of described FM signal processing unit, opening and closing；
Described close-coupled processing circuit also includes the frequency modulation sky controlling described FM signal processing unit
Wiretap circuit, the Wi-Fi antenna switch circuit controlling described Wi-Fi signal processing unit and control
Make the Bluetooth antenna on-off circuit of described Bluetooth signal processing unit, need to carry out multiple difference simultaneously
During categorical data transmission, open described frequency-modulated antenna on-off circuit, described Wi-Fi duplexer electricity
Road and described Bluetooth antenna on-off circuit, corresponding described FM signal processing unit, described Wi-Fi
Signal processing unit and described Bluetooth signal processing unit are while receiving and launching radiofrequency signal
Carry out the data transmission of frequency modulation, Wi-Fi and/or Bluetooth signal.
Preferably, described base band and logic control element include RF processing unit, at described radio frequency
Reason unit include receive high frequency low-noise amplifier (Low Noise Amplifier, LNA),
Low-converter, programmable gain amplifier, digital modulator and output buffer, described
GSM/GPRS radio-frequency module includes antenna, duplexer, filter circuit and power amplifier, described
GSM/GPRS radio-frequency module receives radiofrequency signal by antenna, puts through low noise after filter and amplification
After the amplification of the devices such as big device, low-converter, programmable gain amplifier and conversion, be converted to
Described analog baseband signal is carried out modulus by analog baseband signal, described base band and logic control circuit
Convert the further Digital Signal Processing of laggard row.
Preferably, described base band and logic control element include Power Management Unit, described power supply pipe
Reason unit is for providing required voltage for described base band and logic control circuit.
Preferably, described base band and logic control element include audio frequency and digital signal processing unit,
Described audio frequency and digital signal processing unit have been used for receiving and dispatching the amplification of audio signal, A/D, D/A
Conversion and and Digital Signal Processing.
Preferably, described base band and logic control element include SIM interface unit, described SIM
Card interface unit includes two-way SIM interface, insert SIM start after, described base band and
Each outfan outputting data signals that logic control circuit communicates with SIM, SIM As-received
After the data signal of band and logic control circuit, respond and output response signal, described base band
Confirm that SIM exists and starts to carry out with SIM after receiving response signal with logic control circuit
Communication.
Preferably, described base band and logic control element include power-on reset control unit, described in open
Machine reset control unit controls for start and the reset of described wireless communication module, and user can be led to
Crossing described power-on reset control unit and be turned on and off described wireless communication module, horizontal reset of going forward side by side is grasped
Make.
Compared with prior art, the wireless communication module of the present invention includes described close-coupled processing electricity
Road, described close-coupled processing circuit includes Wi-Fi signal processing unit, Bluetooth signal processing unit,
User can also may select while carrying out GSM/GPRS voice or data transmission and pass through simultaneously
The modes such as Wi-Fi, bluetooth and frequency modulation carry out different types of data transmission.It addition, described base band and
Logic control circuit includes that described RF processing unit, described GSM/GPRS radio-frequency module are arranged on
Outside described base band and logic control circuit, thus provide cost savings and the print of described wireless communication module
Printed circuit board space.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, embodiment will be retouched below
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the schematic diagram of an embodiment of wireless communication module of the present invention.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained all other embodiments, broadly fall into the scope of protection of the invention.
As it is shown in figure 1, the wireless communication module of the present invention include base band and logic control circuit 10,
GSM/GPRS radio-frequency module 20 and close-coupled processing circuit 30.Described GSM/GPRS radio frequency mould
Block 20 carries out radio signal transmission, institute under controlling in described base band and logic control circuit 10
State close-coupled processing circuit 30 to pass through under controlling in described base band and logic control circuit 10
The mode of Wi-Fi, bluetooth and frequency modulation carries out data transmission.
Described base band and logic control circuit 10 have been mainly used in receiving and sending baseband signal
Digital Signal Processing and the logic control of machine system, it include radio frequency (Radio Frequency,
RF) processing unit 11, Power Management Unit 12, storage control unit 13, SIM interface list
Unit 15, audio frequency and digital signal processing unit 14, power-on reset control unit 16, general different
Step transceiver (Universal Asynchronous Receiver/Transmitter, URAT) interface list
Unit 17.
Described Power Management Unit 12 is for providing required for described base band and logic control circuit 10
Voltage supplies.Described GSM/GPRS radio-frequency module 20 is directly powered by external battery voltage.
Described storage control unit 13 includes that core dominant frequency is up to the central processing unit of 312MHz,
And integrated 4K instruction buffer and 4K data buffer storage, be used for storing data.
Described UART Universal Asynchronous Receiver Transmitter interface unit 17 include two-way communication serial port UART1 and
UART2, and road debugging serial ports.
Described audio frequency and digital signal processing unit 14 be used for receive and dispatch audio signal amplification,
A/D, D/A convert, and Digital Signal Processing, including voice encoding/decoding, and channel coding/decoding,
Interweave and deinterleave, encryption and decryption, channel equalization, GMSK Gaussian-filtered minimum shift keying (GMSK)
Modulation and demodulation.
Described SIM interface unit 15 includes two-way SIM interface.Inserting SIM start
After, each outfan outputting data signals that base band communicates with SIM with logic control circuit 10,
After SIM receives the data signal of base band and logic control circuit 10, respond and export sound
Induction signal, described base band and logic control circuit confirm that SIM exists and opens after receiving response signal
Begin to communicate with SIM.
Described power-on reset control unit 16 is controlled for start and the reset of described wireless communication module
System.User can be turned on and off described radio communication by described power-on reset control unit 16
Module, horizontal reset of going forward side by side operates.
Described GSM/GPRS radio-frequency module 20 includes antenna 21, duplexer 210, filtered electrical
Road 22 and power amplifier 23.Described RF processing unit 11 includes the low-noise amplifier receiving high frequency
(Low Noise Amplifier, LNA), low-converter, programmable gain amplifier, numeral
Manipulator and output buffer.Described GSM/GPRS radio-frequency module 20 receives radio frequency by antenna
Signal, putting through devices such as LNA, low-converter, programmable gain amplifiers after filter and amplification
After big and conversion, be converted to the ABB i/q signal of 67.708KHz.Described base band and patrolling
Volume control circuit 10 described ABB i/q signal is carried out modulus (analogue signal to digital signal,
A/D) the further Digital Signal Processing of laggard row is converted.Wherein, the automatic gain of signal is received
Control (AGC) to amplify by 3 line interface PLC technology.Described base band and logic control circuit
10 realize controlling rf signal reception, process and AGC by described 3 line interfaces.
It is true that described RF processing unit 11 and GSM/GPRS radio-frequency module 20 collectively forms
The radio-frequency module of described wireless communication module.Described radio-frequency module can be divided into receiving portion and emission part
Point.Radio-frequency module mainly completes reception and the transmission of wireless signal, is responsible between base station by sky
The speech of middle interface and the transmitted in both directions of signaling.Concrete, described receiving portion completes receiving
Base station high-frequency signal automatic growth control amplify and down coversion, produce certain amplitude simulation base
Band i/q signal, send baseband circuit to be further processed.Described receiving portion uses Direct Conversion knot
Structure, has reception stable, and wide dynamic range, sensitivity high, described emitting portion completes
The modulation of the digital signal sending base band here and power amplification, produce and meet GSM/GPRS specification
The burst signals required is transmitted into base station by antenna.In the above-mentioned embodiment of the present invention, institute
State RF processing unit 11 and be integrated in inside described base band and logic control circuit 10, described central authorities
Processor uses RDA8851 chip, thus provides cost savings and the print of described wireless communication module
Printed circuit board space.In above-mentioned embodiment, described radio-frequency module is GSM/GPRS module,
Data signal transmission is carried out by GSM/GPRS mode.
Described close-coupled processing circuit 30 includes GSM/GPRS signal processing unit 301, Wi-Fi
Signal processing unit 33, bluetooth (Bluetooth, BT) signal processing unit 32, frequency modulation (Frequency
Modulation, FM) signal processing unit 31, frequency-modulated antenna on-off circuit 34, Wi-Fi antenna
On-off circuit 36, Bluetooth antenna on-off circuit 35.In the present embodiment, at described integration
Reason circuit 30 uses chip RDA5991P.Described Wi-Fi signal processing unit 33, bluetooth are believed
Number processing unit 32, FM signal processing unit 31 are respectively used to process Wi-Fi, bluetooth and frequency modulation
Signal, described frequency-modulated antenna on-off circuit 34, Wi-Fi antenna switch circuit 36, Bluetooth antenna
On-off circuit 35 is respectively used to control corresponding signal processing unit and opens or closes.
When needing to carry out the transmission of number of different types data, user can open described frequency modulation sky simultaneously
Wiretap circuit 34, Wi-Fi antenna switch circuit 36, Bluetooth antenna on-off circuit 35 are corresponding
FM signal processing unit 31, Wi-Fi signal processing unit 33 and Bluetooth signal processing unit
32 can be by carrying out frequency modulation, Wi-Fi and/or bluetooth letter while receiving and launching radiofrequency signal
Number data transmission.
In the present invention other or further embodiment, the base band of described wireless communication module and patrolling
Collect control circuit and also include phase-locked loop frequency synthesizer.Described phase-locked loop frequency synthesizer is reflected by frequency discrimination
Phase device (PFD), electric charge pump (Charge Pump, CP), loop filter (LF), pressure
The programmable frequency divider of controlled oscillator (VCO) and feedback branch is constituted, with composite channel frequency institute
A local oscillator (LO1) phaselocked loop needed, together with VCO and loop filter, can be formed complete
Phase-locked loop frequency synthesizer.Described base band and logic control circuit are anti-to phaselocked loop by 3 line interfaces
The programmable frequency divider of feedback branch road puts different channel datas, is come by the frequency dividing ratio changing frequency divider
Produce different local frequencies, thus select different reception/transmitting channels.
The wireless communication module of the present invention includes described close-coupled processing circuit 30, at described integration
Reason circuit 30 includes at Wi-Fi signal processing unit 33, bluetooth (Bluetooth, BT) signal
Reason unit 32, user can also may be used while carrying out the transmission of GSM/GPRS radiofrequency signal data
Select to carry out different types of data transmission by modes such as Wi-Fi, bluetooth and frequency modulation, it is also possible to
By described GSM/GPRS signal processing unit 301, the data of Wi-Fi or Bluetooth short distance are led to
Letter is by GSM/GPRS wireless network transmissions.For the data communication of Wi-Fi by SDIO interface
Transmitting, voice or the data communication of bluetooth are transmitted by the interface such as PCM or serial ports.Described one
Bodyization processes circuit 30 and sends control signal by I2C or serial ports, it is achieved WIFI, bluetooth, adjusts
The initialization of frequency, opening and closing.It addition, described base band and logic control circuit 10 include institute
Stating RF processing unit 11, described GSM/GPRS radio-frequency module 20 is arranged on described base band and patrols
Collect outside control circuit 10, thus provide cost savings and the printed circuit board (PCB) of described wireless communication module
Space.
Above content is that to combine concrete preferred implementation made for the present invention further in detail
Explanation, it is impossible to assert the present invention be embodied as be confined to these explanations.For belonging to the present invention
For the those of ordinary skill of technical field, without departing from the inventive concept of the premise, it is also possible to
Make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a wireless communication module, it is characterised in that include base band and logic control circuit,
GSM/GPRS radio-frequency module and close-coupled processing circuit, described GSM/GPRS radio-frequency module is used
Radio signal transmission is carried out in described base band and logic control circuit, at described integration under controlling
Reason circuit is carrying out GSM/GPRS radio frequency under controlling in described base band and logic control circuit
Carry out data transmission by the way of Wi-Fi, bluetooth and frequency modulation while signal transmission；
Described close-coupled processing circuit includes at GSM/GPRS signal processing unit, Wi-Fi signal
Reason unit, Bluetooth signal processing unit and FM signal processing unit, described Wi-Fi signal processing
Unit, described Bluetooth signal processing unit, described FM signal processing unit and described
GSM/GPRS signal processing unit is integrated in same chip internal；
Described Wi-Fi signal processing unit, described Bluetooth signal processing unit, described FM signal
Processing unit is respectively used to process Wi-Fi signal, Bluetooth signal and FM signal, described
GSM/GPRS signal processing unit is for passing through the data communication of Wi-Fi or Bluetooth short distance
GSM/GPRS wireless network is transmitted；
Wherein, the Wi-Fi signal of described close-coupled processing circuit is connect by the SDIO of described chip
Mouth is transmitted, and the PCM that the Bluetooth signal of described close-coupled processing circuit is by described chip
Or serial ports is transmitted, and described close-coupled processing circuit is additionally operable to the I2C by described chip
Or serial ports sends control signal, described control signal be used for controlling described Wi-Fi signal processing unit,
Described Bluetooth signal processing unit and the initialization of described FM signal processing unit, open and close
Close；
Described close-coupled processing circuit also includes the frequency modulation sky controlling described FM signal processing unit
Wiretap circuit, the Wi-Fi antenna switch circuit controlling described Wi-Fi signal processing unit and control
Make the Bluetooth antenna on-off circuit of described Bluetooth signal processing unit, need to carry out multiple difference simultaneously
During categorical data transmission, open described frequency-modulated antenna on-off circuit, described Wi-Fi duplexer electricity
Road and described Bluetooth antenna on-off circuit, corresponding described FM signal processing unit, described Wi-Fi
Signal processing unit and described Bluetooth signal processing unit are while receiving and launching radiofrequency signal
Carry out the data transmission of frequency modulation, Wi-Fi and/or Bluetooth signal.
Wireless communication module the most according to claim 1, it is characterised in that described base band
Include that RF processing unit, described RF processing unit include receiving high frequency with logic control element
Low-noise amplifier, low-converter, programmable gain amplifier, digital modulator and output buffering
Device, described GSM/GPRS radio-frequency module includes antenna, duplexer, filter circuit and power amplifier,
Described GSM/GPRS radio-frequency module receives radiofrequency signal by antenna, through low noise after filter and amplification
After the amplification of the devices such as acoustic amplifier, low-converter, programmable gain amplifier and conversion, turn
It is changed to analog baseband signal, described base band and logic control circuit carried out by described analog baseband signal
The further Digital Signal Processing of the laggard row of analog to digital conversion.
Wireless communication module the most according to claim 2, it is characterised in that described base band
Including Power Management Unit with logic control element, described Power Management Unit is used for as described base band
Required voltage is provided with logic control circuit.
Wireless communication module the most according to claim 2, it is characterised in that described base band
Audio frequency and digital signal processing unit is included, at described audio frequency and digital signal with logic control element
Reason unit has been used for receiving and dispatching the amplification of audio signal, A/D, D/A conversion and and digital signal
Process.
Wireless communication module the most according to claim 2, it is characterised in that described base band
Include that SIM interface unit, described SIM interface unit include two-way with logic control element
SIM interface, after inserting SIM start, described base band and logic control circuit and SIM
Each outfan outputting data signals of cartoon letters, SIM receives base band and logic control circuit
After data signal, responding and output response signal, described base band and logic control circuit receive
Confirm that SIM exists and starts to communicate with SIM after response signal.
Wireless communication module the most according to claim 2, it is characterised in that described base band
Including power-on reset control unit with logic control element, described power-on reset control unit is used for institute
Stating the start of wireless communication module and the control that resets, user can control single by described power-on reset
Unit is turned on and off described wireless communication module, and horizontal reset of going forward side by side operates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745920.1A CN103746721B (en) | 2013-12-30 | 2013-12-30 | Wireless communication module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745920.1A CN103746721B (en) | 2013-12-30 | 2013-12-30 | Wireless communication module |
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| CN103746721A CN103746721A (en) | 2014-04-23 |
| CN103746721B true CN103746721B (en) | 2016-08-17 |
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| CN201310745920.1A Active CN103746721B (en) | 2013-12-30 | 2013-12-30 | Wireless communication module |
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Families Citing this family (1)
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| CN111908411B (en) * | 2020-08-06 | 2022-09-06 | 榆林市镇北台网络科技有限公司 | Fluid conveying control device, wine selling machine and fluid conveying control method |
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| CN103746721A (en) | 2014-04-23 |
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