CN1175696C - Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform - Google Patents
Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform Download PDFInfo
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- CN1175696C CN1175696C CNB021599629A CN02159962A CN1175696C CN 1175696 C CN1175696 C CN 1175696C CN B021599629 A CNB021599629 A CN B021599629A CN 02159962 A CN02159962 A CN 02159962A CN 1175696 C CN1175696 C CN 1175696C
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Abstract
The present invention discloses a method for adding Bluetooth functions to an existing cell phone and a Smart Phone platform, the equipment comprises a man-machine interface unit, a GSM/GPRS module, a Bluetooth module, an antenna, a coding-decoding device and other peripherals. The method is characterized in that hardware structures of the existing cell phone and the Smart Phone are not changed greatly, and only the Bluetooth module and a CODEC circuit are added. A Bluetooth protocol stack and a plurality of Bluetooth application frameworks (Profiles) are integrated in a Bluetooth baseband processor; a physical interface in a universal asynchronous receiving and transmitting (UART) format is adopted among the main processors of the cell phone and the Smart Phone and the Bluetooth baseband processor; a Bluetooth standard host control interface (HCI) protocol is not adopted by the information interaction among the main processors of the cell phone and the Smart Phone and the Bluetooth baseband processor and a simple message defined by a user is adopted. The method has the advantages that because the most relative functions of the Bluetooth is realized in the Bluetooth baseband processor, an electronics engineer can faster realize and satisfy the normative application to the Bluetooth by using the Bluetooth baseband processor under the condition that the electronics engineer is not familiar with the Bluetooth technique.
Description
Technical field
The present invention relates to the Bluetooth technology in the wireless communication field, relate to the method that increases function of Bluetooth communication particularly.
Background technology
Bluetooth technology is the open global specifications of a kind of wireless data and voice communication, is intended to set up the wireless connections of little power consumption, low cost, short distance, miniaturization, is the special short-range radio technology that is connected that provides band to protect with the quiesce communication environment for wireless.Bluetooth technology especially has vast potential for future development in field of consumer electronics in industry, agricultural, government utility field.Cell phone and Smart Phone more and more with bluetooth as necessary equipment.
Existing bluetooth cellular phone and Smart Phone, the external bluetooth baseband processor of many employings, be the transport layer interface of universal asynchronous receiving-transmitting (UART) form between this processor and the master processor, adopt HCI (HCI) agreement of Bluetooth specification definition to carry out information interaction.The characteristics of this scheme are, master processor is responsible for carrying out bluetooth protocol repertory and application framework (Profile), and the bluetooth baseband processor is finished the lower level function of Bluetooth specifications definition such as bluetooth baseband processing, radio-frequency receiving-transmitting.
Adopt said method to add Bluetooth function for cell phone and Smart Phone, need on master processor, realize bluetooth protocol repertory and Profile.For general technical staff, grasp Bluetooth technology at short notice comprehensively, have sizable difficulty thereby develop product with Bluetooth function; Even oneself exploitation, directly adopt the bluetooth protocol repertory and the Profile of third party's commercialization, reach on the master processor platform and the purpose of existing GSM/GPRS or the work of CDMA applicating cooperation also is not easy very much.This phenomenon ubiquity has influenced the popularization of Bluetooth technology.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of equipment and method of adding Bluetooth function on existing cell phone and Smart Phone platform is provided.By this method, the Application Engineer can be unfamiliar with under the situation of Bluetooth technology, realizes satisfying the application of Bluetooth specification quickly on existing cell phone and Smart Phone platform.
A kind of equipment and method of adding Bluetooth function on existing cell phone and Smart Phone platform of the present invention realizes that by the following technical solutions described equipment comprises:
Human and machine interface unit is used for man-machine interaction, and this human and machine interface unit is connected with master processor;
The GSM/GPRS module is used to realize encoding and decoding, the speech coding of GSM/SPRS or CDMA base band, and this GSM/GPRS module comprises master processor, the built-in DSP of master processor, microcontroller, SRAM and flash cell; Radio-frequency module is finished the transmission of radio frequency and is received correlation function; Power management module is used for the management to device power supply (DPS);
Bluetooth module comprises baseband processor and wireless transmitter, is used to realize the control to link manager, baseband controller, wireless transceiver and LMP Link Manager Protocol functional module;
Baseband processor is simultaneously integrated bluetooth protocol repertory and multiple Profile, link to each other with master processor by the UART interface, this baseband processor can be realized bluetooth service discovery protocol (SDP), serial ports simulation protocol (RFCOMM), phone control protocol (TCS), the control of logical connection control and adapting protocol (L2CAP) and HCI driver functions module realizes comprising general-purpose accessing application framework (GAP), people's machine equipment application framework (HID), service discovery application framework (SDAP), cordless telephone application framework (CTP), intercommunication phone application framework (ICP), vehicle-carried hands-free telephone application framework (HFP), earphone gateway application framework (HSP/AG), serial ports application framework (SPP), object pushes away application framework (OPP) at interior multiple application framework (Profile);
Antenna is used for reception and transmission to wireless signal, and is connected with bluetooth radio;
Coding decoder (CODEC), the one end links to each other with bluetooth module by the pulse code modulation (pcm) interface, convert the digital voice signal of bluetooth module side to analog signal, the other end links to each other with the GSM/GPRS module by analog signal interface, and the analog signal conversion of GSM/GPRS module side is become digital signal.
Other ancillary equipment comprises SIM card interface circuit, receiver and loud speaker, is used for the function of traditional cellular phone, Smart Phone needs.
Described human and machine interface unit is button, light-emitting diode, keyboard, LCDs or other available device.
Described method comprises:
(a) hardware configuration of existing cell phone and Smart Phone is not done big change, only needs to increase bluetooth module and CODEC circuit;
(b) integrated bluetooth protocol repertory and multiple application framework in the bluetooth baseband processor;
(c) transport layer interface of employing UART form between the master processor of cell phone and Smart Phone and the bluetooth baseband processor;
(d) information interaction does not adopt the HCI agreement of bluetooth standard between the master processor of cell phone and Smart Phone and the bluetooth baseband controller, and adopts self-defining simple message.
Adopt method of the present invention, the developer only need be understood how to use self-defining simple message of employing and bluetooth baseband processor to carry out information interaction, just can design the blue tooth products of compliant, needn't understand the ins and outs of bluetooth protocol repertory and Profile, reduced the design cost of product, improved reliability of products, and product can be come into the market rapidly.
By describing the preferred embodiments of the present invention in detail, will help to understand objects and advantages of the present invention by accompanying drawing.Wherein:
Description of drawings
Fig. 1 is the hardware structure diagram of bluetooth baseband processor;
Fig. 2 is the functional block diagram of conventional bluetooth baseband processor;
Fig. 3 is the functional block diagram of the bluetooth baseband processor of employing according to the present invention;
Fig. 4 is the cellular hardware structure diagram of realizing according to the present invention of bluetooth GSM/GPRS;
Master processor and bluetooth baseband processor carry out the mode of information interaction in the bluetooth cellular phone that Fig. 5 explanation realizes according to the present invention.
Embodiment
Fig. 1 is the hardware structure diagram of bluetooth baseband processor.As shown in Figure 1, bluetooth baseband processor 300 is made of a plurality of hardware cells.Wherein, microprocessor 360 is cores of chip, is the execution platform of Control Software.The program of Control Software and data leave in respectively among ROM390 and the SRAM380.The various external interfaces of bluetooth baseband processor are respectively by relevant hardware cell management.Base band control logic 370 is finished in the base band control and can be linked to each other with the radio frequency chip of outside by the function of logical circuit realization.Radio frequency chip also can be built in the bluetooth baseband processor.UART310 supports the coffret of UART form.USB320 supports the coffret of USB (USB) form.UART310 is generally used for communicating by letter with outside processor with USB320, transmits the HCI order and the data that meet Bluetooth specification.GPIO330 is used for carrying out alternately with outside hardware.Audio frequency CODEC340 adopts the form of pulse code modulation (pcm), is the path that the bluetooth baseband processor carries out the voice signal transmitting-receiving.External memory interface is used for the expansion of memory, comprises data wire, address wire, chip selection signal etc.
Fig. 2 is the functional block diagram of conventional bluetooth baseband processor, based on hardware shown in Figure 1 (containing built-in radio frequency chip).Wherein, link manager 240 is responsible for receiving order and the data that upper layer module sends, and the result is returned to the upper strata.Link manager 240 is finished function corresponding by baseband controller 220 and radio-frequency module 210.LMP Link Manager Protocol 230 is used for the intercommunication mutually between the different Bluetooth devices link manager.Baseband controller 220 is according to the command operation of link manager 240.Radio-frequency module 210 wirelessly sends and receives information according to the specification of standard.As can be seen, itself can not constitute independently product the bluetooth baseband processor, must link to each other with outside processor, externally carries out the bluetooth applications program on the processing machine.
Fig. 3 is the functional block diagram of the bluetooth baseband processor of employing according to the present invention.Based on hardware shown in Figure 1.Wherein, radio-frequency module 450, baseband controller 460, link manager 470, LMP Link Manager Protocol 440, consistent with the function of Fig. 2 corresponding module.SDP (service discovery protocol) 440, TCS (phone control protocol) 480 and RFCOMM (serial ports simulation protocol) the 490th, various Bluetooth protocols.The variety of protocol on standard communication protocol L2CAP (logical connection control and adapting protocol) 430 multiplexed upper stratas.Bluetooth applications program 410 has comprised GAP (general-purpose accessing application framework) 417, HID (people's machine equipment application framework) 418, SDAP (service discovery application framework) 416, CTP (cordless telephone application framework) 415, ICP (intercommunication phone application framework) 414, HFP (vehicle-carried hands-free telephone application framework) 413, HSP/AG (earphone gateway application framework) 412, SPP (serial ports application framework) 411, OPP (object pushes away application framework) 419 etc.In other possible enforcement, the application program that the bluetooth baseband processor is packed into may be a subclass of this figure bluetooth applications program 410.Transport layer interface 419 is used for communicating with master processor, explains and handles order and the data that master processor is sent, and the state and the related data of bluetooth baseband processor is sent to master processor.
Fig. 4 is the cellular hardware structure diagram of realizing according to the present invention of bluetooth GSM/GPRS.Wherein, human and machine interface unit 510 is used for man-machine interaction, is connected with master processor; GSM/GPRS module 520 comprises master processor 521, radio frequency 522 and power management 523.Unit such as master processor 521 built-in DSP, microcontroller, SRAM and flash memory, major function are encoding and decoding, sound speech coding of GSM/SPRS base band etc.; In addition, the application program of GSM/GPRS is also as carrying out platform.Radio-frequency module 522 is finished the transmission of radio frequency and is received correlation function.Power management 523 is responsible for the control of various battery saving modes.Bluetooth module 550 comprises baseband processor 551 and wireless transmitter 552, can realize the control to link manager, baseband controller, wireless transceiver and LMP Link Manager Protocol functional module.Baseband processor 551 is simultaneously integrated bluetooth protocol repertory and multiple Profile (with reference to Fig. 3) links to each other with master processor 521 by the UART interface.Antenna 560 is used for the reception of wireless signal and transmission, and is connected with bluetooth radio; Coding decoder (CODEC) 540, one ends link to each other with bluetooth module 550 by the pulse code modulation (pcm) interface, convert the digital voice signal of bluetooth module side to analog signal; The other end links to each other with GSM/GPRS module 520 by analog signal interface, and the analog signal conversion of GSM/GPRS module side is become digital signal.Other ancillary equipment 530 comprises SIM card interface circuit, receiver and loud speaker etc., is used for the function of traditional cellular phone, Smart Phone needs.
Master processor and bluetooth baseband processor carry out the mode of information interaction in the bluetooth cellular phone that Fig. 5 explanation realizes according to the present invention.At first, master processor sends order to the bluetooth baseband processor, carries out initial configuration (S100).Order can be adopted the form of AT order.As, with " ATBTCONF n0n1n2 " record is set, wherein, the record type of n0 for representing with 16 systems; The record length of n1 for representing with 16 systems; N2 is the record content that 16 systems are represented.The bluetooth baseband processor is configured operation after receiving this order, return " OK " after the success, otherwise, return " ERROR ".Then, realize concrete function.Here with this cell phone need match with certain bluetooth earphone of appointment (Pairing) be example (S110).Master processor sends order to the bluetooth baseband processor, state to be paired (S120) such as requires to enter.As: " ATBTWAITn0n1 ".Wherein, n0 allows the type of paired device with it, and with a digital character representation, 0 is all devices; 1 is earphone; 2 is computer; Or the like.N1 matches needed personal information sign indicating number (PIN) for this.Can be set with another one AT order " ATBTSET " etc. the time to be paired.The response of bluetooth baseband processor is, after the successful matching, return the name of earphone and call number (S140, S130).This call number can be used for obtaining the relevant information of this earphone in the future.After master processor obtains this response, can notify user result (S140) through man-machine interface.
As mentioned above, because the application relevant with bluetooth all has been integrated in the bluetooth baseband processor, the work of master processor has greatly been simplified.For general technical staff, can grasp the interface rules of bluetooth baseband processor at short notice, thereby can more promptly develop product with Bluetooth function.
Though the present invention illustrates and describes with reference to its preferred embodiment, but will be understood by those skilled in the art that, under the situation of the spirit and scope of the present invention that do not break away from the appended claims and limited, can carry out the various changes of form and details.
Claims (4)
1, a kind of equipment that on existing cell phone and Smart Phone platform, adds Bluetooth function, it is characterized in that: described equipment comprises:
Human and machine interface unit is used for man-machine interaction, and this human and machine interface unit is connected with master processor;
The GSM/GPRS module is used to realize encoding and decoding, the speech coding of GSM/GPRS or CDMA base band, and this GSM/GPRS module comprises master processor, described master processor embedded digital signal processor DSP, microcontroller, SRAM and flash cell; Radio-frequency module is finished the transmission and the reception of radiofrequency signal; Power management module is used for the management to device power supply (DPS);
Bluetooth module comprises baseband processor and wireless transmitter, is used to realize the control to link manager, baseband controller, wireless transceiver and LMP Link Manager Protocol functional module;
Baseband processor is simultaneously integrated bluetooth protocol repertory and multiple application framework, link to each other with master processor by the UART interface, described baseband processor can be realized bluetooth service discovery protocol SDP, serial ports simulation protocol RFCOMM, phone control protocol TCS, the control of the driver functions module of logical connection control and adapting protocol L2CAP and HCI HCI, described multiple application framework comprises general-purpose accessing application framework GAP, people's machine equipment application framework HID, service discovery application framework SDAP, cordless telephone application framework CTP, intercommunication phone application framework ICP, vehicle-carried hands-free telephone application framework HFP, earphone gateway application framework HSP/AG, serial ports application framework SPP and object push away application framework OPP;
Antenna is used to realize reception and transmission to wireless signal, and is connected with described wireless transmitter;
Codec CODEC, the one end links to each other with bluetooth module by the pulse code modulation interface, convert the digital voice signal of bluetooth module side to analog signal, the other end links to each other with the GSM/GPRS module by analog signal interface, and the analog signal conversion of GSM/GPRS module side is become digital signal; And
Other ancillary equipment comprises SIM card interface circuit, receiver and loud speaker, is used to realize the function of traditional cellular phone, Smart Phone needs.
2, equipment according to claim 1 is characterized in that: described human and machine interface unit is button, light-emitting diode, keyboard, LCDs.
3, a kind of method of on existing cell phone and Smart Phone platform, adding Bluetooth function, it is characterized in that: described method comprises:
(a) in the hardware configuration of existing cell phone and Smart Phone, increase bluetooth module and codec CODEC circuit;
(b) integrated with Bluetooth protocol stack and multiple application framework in the bluetooth baseband processor;
(c) transport layer interface of employing UART form between the master processor of cell phone and Smart Phone and the bluetooth baseband processor;
(d) information interaction does not adopt the HCI agreement of bluetooth standard between the master processor of cell phone and Smart Phone and the bluetooth baseband controller, and adopts self-defined message.
4, method according to claim 3 is characterized in that: described multiple application framework comprises that general-purpose accessing application framework GAP, people's machine equipment application framework HID, service discovery application framework SDAP, cordless telephone application framework CTP, intercommunication phone application framework ICP, vehicle-carried hands-free telephone application framework HFP, earphone gateway application framework HSP/AG, serial ports application framework SPP and object push away application framework OPP.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB021599629A CN1175696C (en) | 2002-12-31 | 2002-12-31 | Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB021599629A CN1175696C (en) | 2002-12-31 | 2002-12-31 | Equipment and method for adding blue-tooth function on cellular telephone and smart Phone platform |
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| CN1175696C true CN1175696C (en) | 2004-11-10 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463481C (en) * | 2003-06-30 | 2009-02-18 | 中兴通讯股份有限公司 | A method and system for implementing short distance wireless communication in public switched telephone network |
| CN100454953C (en) * | 2003-07-06 | 2009-01-21 | 艾威梯软件技术(北京)有限公司 | An equipment for implementing automatic call forwarding of blue tooth handset and method thereof |
| CN100377922C (en) * | 2004-02-23 | 2008-04-02 | 拍档科技股份有限公司 | Control module possible to be configured in acoustics used in vehicle |
| US9084116B2 (en) * | 2004-03-19 | 2015-07-14 | Nokia Technologies Oy | Detector logic and radio identification device and method for enhancing terminal operations |
| CN101232310B (en) * | 2007-09-18 | 2013-01-16 | 福建慧翰信息技术有限公司 | Blue tooth module, blue tooth equipment and information processing method thereof |
| CN101437139B (en) * | 2007-11-16 | 2010-12-22 | 希姆通信息技术（上海）有限公司 | System and method for using Bluetooth earphone in visual telephone |
| US8526930B2 (en) * | 2011-07-07 | 2013-09-03 | GM Global Technology Operations LLC | Enhanced smartphone in-vehicle accommodation |
| US10222272B2 (en) | 2012-07-24 | 2019-03-05 | Renesas Electronics Corporation | Semiconductor device and electronic apparatus |
| CN108093387B (en) * | 2018-01-17 | 2021-01-19 | 深圳市信锐网科技术有限公司 | Enterprise-level Bluetooth network system, central controller, Bluetooth gateway and deployment method |
| CN114040370B (en) * | 2021-11-01 | 2023-10-20 | 国芯科技(广州)有限公司 | Debugging system of many bluetooth equipment |
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