CN104639203B - A kind of mobile communication terminal device - Google Patents
A kind of mobile communication terminal device Download PDFInfo
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- CN104639203B CN104639203B CN201510106916.XA CN201510106916A CN104639203B CN 104639203 B CN104639203 B CN 104639203B CN 201510106916 A CN201510106916 A CN 201510106916A CN 104639203 B CN104639203 B CN 104639203B
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- radio frequency
- baseband
- frequency part
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Abstract
A kind of mobile communication terminal device provided by the invention, it includes radio frequency part, baseband portion and multimedia segment, baseband portion provides baseband signal for the radio frequency part, and RF switch is provided with radio frequency part, RF switch is controlled by baseband portion, and for controlling the signal of radio frequency part to receive and launch, the present invention is by setting radio frequency part, baseband portion and multimedia segment, improve the level of multimedia service, communication capacity greatly improves, it is provided with different interfaces at the same time, meet needs of the people to interface, improve reception and the disposal ability of signal, enhance communication function.
Description
Technical field
The present invention relates to a kind of mobile communication equipment, is specially a kind of mobile communication terminal device, belongs to communication technology neck
Domain.
Background technology
The rapid development of wireless communication technique so that the quality and capacity of mobile communication are greatly improved, while
There is polytype mobile communication system for working in different frequency range.For different communication systems often using different
Dual-mode antenna, this brings difficulty to the integrated and fusion of multisystem.Mobile terminal or make mobile communication terminal refer to can be with
The computer equipment used on the move, saying for broad sense even include vehicle mounted electric including mobile phone, notebook, tablet computer, POS machine
Brain.But refer to mobile phone or smart mobile phone and tablet computer with a variety of application functions in most cases.With net
Towards the development in more and more broadband direction, Mobile Communication Industry will move towards the real mobile message epoch for network and technology.Separately
On the one hand, as the rapid development of integrated circuit technique, the disposal ability of mobile terminal have had powerful disposal ability,
Mobile terminal is changed into an integrated information processing platform from simple call instrument.This is also added more to mobile terminal
Broad development space.But current mobile terminal device multimedia service level is not high, reception signal is not strong, reception
Frequency band is inadequate, moreover, equipment is complicated, interface and function are restricted.
For each technical problem more than solving, the present invention provides a kind of mobile communication terminal device, its is simple in structure,
It is easy to use, reliable, by setting radio frequency part, baseband portion and multimedia segment, the level of multimedia service is improved, is led to
Letter ability greatly improves, while is provided with different interfaces, meets needs of the people to interface, improve the reception of signal with
Disposal ability, enhances communication function.
The content of the invention
For the above situation, to solve the defect of the prior art, the purpose of the present invention just there is provided a kind of mobile communication
Terminal device, it includes radio frequency part, baseband portion and multimedia segment, it is characterised in that the baseband portion is penetrated to be described
Frequency part provides baseband signal, and RF switch is provided with the radio frequency part, and the RF switch is controlled by baseband portion,
And for controlling the signal of the radio frequency part to receive and launch.
Further, preferably, the baseband portion includes the A/ of ARM7TDMI core controllers, voice and vision signal
D converters, the D/A converter of voice and vision signal, the encoder of digital signal, the decoder of digital signal, digital signal
Demodulator, channel encoder, time schedule controller, display, keyboard, buzzer and vibrator；The radio frequency part includes signal
Processing unit, Power Management Unit, power control circuit, power amplifier, duplexer, integrated antenna, crystal oscillator and frequency
Synthesizer, the signal processing unit are used for up-conversion, down coversion, filtering and the amplification for completing signal, the radio-frequency part subpackage
Include transmitting module and receiving module, the transmitting module by the signal up-conversion of the baseband portion to specified carrier frequency, then
Transmitting signal is amplified by power amplifier, by power control circuit control to the magnification level of signal, makes transmitting work(
The requirement that rate touches the mark, the receiving module will be downconverted into signal for baseband portion processing, hair after the filtered amplification of signal
The signal for penetrating carrier frequency and reception local oscillator is directly or indirectly synthesized by the frequency synthesizer, the reference letter of the frequency synthesizer
Number source comes from crystal oscillator, and the duplexer is used for the switching for completing transmitting module and receiving module, by antenna launch signal or
The radiofrequency signal from base station is received, the Power Management Unit is powered using lithium ion battery, and is provided with ADC tests and is connect
Mouthful, for test cell voltage and device temperature；The multimedia segment includes video acquisition module, audio-frequency module, data
Memory module, usb interface module and GPIO interface module, the video acquisition module using OV9640COMS imaging sensors and
COMS cameras, the audio-frequency module are used using microphone as input interface, use earphone or loudspeaker as output equipment, institute
The MicroSDR interface cards that data storage uses 8 pins are stated, the GPIO interface module is for inputting, output digit signals,
And support drop-down, pull-up and the communication products interrupt mode kept.
Further, preferably, present invention additionally comprises bluetooth module and blue tooth interface, and the bluetooth module is included wirelessly
Floor, key road manager layer and baseband layer, the radio layer are used for synthesis, conversion, filtering and the transmitting-receiving for completing frequency；It is described
Key road manager layer is used to complete connection foundation and the management on key road；The baseband layer be used for complete decoding, coding, encryption,
Decryption and frequency modulation processing.
Further, preferably, the usb interface module is used to upload the audio-video document downloaded and meet form, at the same time
Baseband portion upgrades software by USB interface, and the USB interface switches different USB using high-speed analog switch FSUSB23
Controller, and 33 Ω resistance of connecting on D+ and D- lines ensure impedance matching.
Further, preferably, the signal processing unit includes transmitting Signal Matching circuit, receives Signal Matching circuit
And bandpass filter, the impedance matching of the transmitting Signal Matching circuit and reception Signal Matching circuit for signal, the band
Bandpass filter is used to be filtered signal processing, to filter out the signal beyond reception or emission band.
Beneficial effects of the present invention：The present invention provides a kind of mobile communication terminal device, its simple in structure, user
Just, reliably, by setting radio frequency part, baseband portion and multimedia segment, the level of multimedia service, communication capacity are improved
Greatly improve, while be provided with different interfaces, meet needs of the people to interface, improve reception and the processing energy of signal
Power, enhances communication function.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of mobile communication terminal device provided by the invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention provides a kind of mobile communication terminal device, it include radio frequency part, baseband portion and
Multimedia segment, baseband portion provides baseband signal for the radio frequency part, and RF switch is provided with radio frequency part, radio frequency
Switch is controlled by baseband portion, and for controlling the signal of radio frequency part to receive and launch.
In the present embodiment, baseband portion includes the A/D conversions of ARM7 TDMI core controllers, voice and vision signal
Device, the D/A converter of voice and vision signal, the encoder of digital signal, the decoder of digital signal, digital demodulation signal
Device, channel encoder, time schedule controller, display, keyboard, buzzer and vibrator；Radio frequency part include signal processing unit,
Power Management Unit, power control circuit, power amplifier, duplexer, integrated antenna, crystal oscillator and frequency synthesizer, letter
Number processing unit is used for up-conversion, down coversion, filtering and the amplification for completing signal, and radio frequency part includes transmitting module and receives mould
Block, transmitting module is by the signal up-conversion of the baseband portion to specified carrier frequency, then by power amplifier to launching signal
It is amplified, by power control circuit control to the magnification level of signal, the requirement for making transmission power touch the mark, receives mould
Block will be downconverted into signal and be handled for baseband portion after the filtered amplification of signal, the signal of transmitting carrier frequency and reception local oscillator is by frequency
Synthesizer directly or indirectly synthesizes, and the derived reference signal of frequency synthesizer comes from crystal oscillator, and duplexer is used to complete transmitting mould
The switching of block and receiving module, launches signal by antenna or receives the radiofrequency signal from base station, and Power Management Unit uses
Lithium ion battery is powered, and is provided with ADC test interfaces, for test cell voltage and device temperature, due to mobile communication
Fever phenomenon occurs in equipment during the work time, and working status is different, and the febrile state of product would also vary from, therefore,
The operating temperature for testing communication products is also necessary test stage.The component of standard has adjusts work automatically according to temperature
The function of power, such as, when communication equipment battery temperature exceedes some critical point, charging will be automatically stopped, will be adopted
The mode that taking reduces transmitter highway or crystal environment temperature changes the working temperature environment of equipment, so as to extend battery apparatus
Service life.Temperature test is realized by its internal ADC test interface.The ADC test interfaces are except that can detect
Outside communication equipment cell voltage, the identification for being also used as relevant device uses, such as, the knowledge of the external equipment such as earphone, USB
Not, ADC judges that external equipment belongs to which kind of equipment, this test method very simple according to the magnitude of voltage measured.
Multimedia segment connects including video acquisition module, audio-frequency module, data memory module, usb interface module and GPIO
Mouth mold block, the major function which can realize are：1300000 pixels are taken pictures, MP3, AAC and WAV are played, AMR-NB
Recording and broadcasting, the recording of MPEG-4/H.263 and broadcasting, the multimedia segment is using VC0858 chips as core, the chip
It is a highly integrated, high performance multimedia coprocessor, its main feature is that the ARM946E-S kernels of built-in 104MHz, are supported hard
Part MPEG-4/H.263 encoding and decoding and JPEG encoding and decoding, the built-in decoded AMR/ADPCM codecs of MP3/AAC/WAV, also collect
Into 2D image processing engines, SDRAM, USB2.0 and NAND the Flash/SD card interfaces of sensor ISP, 2Mbyte etc..Base band
Chip realizes the exchanging visit with VC0858 by 16 bit data bus, and transmission order control VC0858 completes audio and video and records broadcasting work(
Energy.
Video acquisition module is used with Mike using OV9640 COMS imaging sensors and COMS cameras, audio-frequency module
Wind is input interface, uses earphone or loudspeaker as output equipment, and in terms of audio interface, VC0858 supports IS serial transmissions
Agreement, no integrated audio Codec, selects the low-power consumption stereo Codec WM8976, DAC and ADC portion of Wolfson companies
Signal-to-noise ratio reaches 98dB and 95dB respectively, supports the sample rate of 8~48kHz, can meet design requirement well, meanwhile, this hair
It is bright that independent power amplifier is integrated using device, directly drive the loudspeaker of 8 Ω and the earphone of 32 Ω.Data storage uses
The MicroSDR interface cards of 8 pins, GPIO interface module is for inputting, output digit signals, and supports drop-down, pull-up and protect
The communication products interrupt mode held.
Meanwhile present invention additionally comprises bluetooth module and blue tooth interface, and bluetooth module includes radio layer, key road manager layer
And baseband layer, radio layer are used for synthesis, conversion, filtering and the transmitting-receiving for completing frequency；Key road manager layer is used for the company of completion
Connect foundation and the management on key road；Baseband layer is used to complete decoding, coding, encryption, decryption and frequency modulation processing.USB interface mould
Block is used to upload the audio-video document downloaded and meet form, while baseband portion upgrades software by USB interface, and the USB connects
Mouth switches different USB controllers using high-speed analog switch FSUSB23, and 33 Ω resistance of connecting on D+ and D- lines ensure resistance
Anti- matching.Signal processing unit includes transmitting Signal Matching circuit, receives Signal Matching circuit and bandpass filter, launches signal
Match circuit and reception Signal Matching circuit are used for the impedance matching of signal, and bandpass filter is used to be filtered signal at place
Reason, to filter out the signal beyond reception or emission band.
The present invention improves the level of multimedia service, leads to by setting radio frequency part, baseband portion and multimedia segment
Letter ability greatly improves, while is provided with different interfaces, meets needs of the people to interface, improve the reception of signal with
Disposal ability, enhances communication function.
Claims (2)
1. a kind of mobile communication terminal device, it includes radio frequency part, baseband portion and multimedia segment, it is characterised in that institute
State baseband portion and provide baseband signal for the radio frequency part, and RF switch is provided with the radio frequency part, the radio frequency
Switch is controlled by baseband portion, and for controlling the signal of the radio frequency part to receive and launch；The baseband portion includes
ARM7TDMI core controllers, the A/D converter of voice and vision signal, the D/A converter of voice and vision signal, numeral are believed
Number encoder, the decoder of digital signal, digital signal demodulator, channel encoder, time schedule controller, display, keyboard,
Buzzer and vibrator；The radio frequency part includes signal processing unit, Power Management Unit, power control circuit, power and puts
Big device, duplexer, integrated antenna, crystal oscillator and frequency synthesizer, the signal processing unit are used for the upper change for completing signal
Frequently, down coversion, filtering and amplification, the radio frequency part include transmitting module and receiving module, and the transmitting module is by the base
On signal up-conversion with part to specified carrier frequency, then by power amplifier to transmitting signal be amplified, pass through power control
Circuit control processed is to the magnification level of signal, the requirement for making transmission power touch the mark, and the receiving module is filtered by signal
It is direct by the frequency synthesizer for baseband portion processing, transmitting carrier frequency and the signal for receiving local oscillator that signal is downconverted into after amplification
Or synthesize indirectly, the derived reference signal of the frequency synthesizer comes from crystal oscillator, and the duplexer is used to complete transmitting module
With the switching of receiving module, signal is launched by antenna or receives the radiofrequency signal from base station, the Power Management Unit is adopted
Powered with lithium ion battery, and be provided with ADC test interfaces, for test cell voltage and device temperature；The ADC tests
The identification that interface is also used as associated external equipment uses, and ADC judges what external equipment belongs to according to the magnitude of voltage measured
Kind equipment；The multimedia segment includes video acquisition module, audio-frequency module, data memory module, usb interface module and GPIO
Interface module, the video acquisition module use 0V9640COMS imaging sensors and COMS cameras, and the audio-frequency module is adopted
It is input interface to microphone, uses earphone or loudspeaker as output equipment, the data storage is using 8 pins
MicroSDR interface cards, the GPIO interface module is for inputting, output digit signals, and supports drop-down, pull-up and keep
Communication products interrupt mode；
Bluetooth module and blue tooth interface are further included, and the bluetooth module includes radio layer, key road manager layer and baseband layer,
The radio layer is used for synthesis, conversion, filtering and the transmitting-receiving for completing frequency；Key road manager layer is built for completing connection
Vertical and key road management；The baseband layer is used to complete decoding, coding, encryption, decryption and frequency modulation processing；
The usb interface module is used to upload the audio-video document downloaded and meet form, while baseband portion passes through USB interface liter
Level software, the USB interface switches different USB controllers using high-speed analog switch FSUSB23, and is gone here and there on D+ and D- lines
Join 33 Ω resistance and ensure impedance matching.
2. a kind of mobile communication terminal device according to claim 1, it is characterised in that the signal processing unit includes
Launch Signal Matching circuit, receive Signal Matching circuit and bandpass filter, the transmitting Signal Matching circuit and reception signal
Match circuit is used for the impedance matching of signal, and the bandpass filter is used to be filtered signal processing, is connect to filter out
Signal beyond receipts or emission band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106916.XA CN104639203B (en) | 2015-03-11 | 2015-03-11 | A kind of mobile communication terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106916.XA CN104639203B (en) | 2015-03-11 | 2015-03-11 | A kind of mobile communication terminal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104639203A CN104639203A (en) | 2015-05-20 |
| CN104639203B true CN104639203B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106916.XA Expired - Fee Related CN104639203B (en) | 2015-03-11 | 2015-03-11 | A kind of mobile communication terminal device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649990A (en) * | 2018-03-29 | 2018-10-12 | 努比亚技术有限公司 | Radio frequency interference processing method and mobile terminal |
| CN109413817A (en) * | 2018-10-15 | 2019-03-01 | 湖南辰东科技有限公司 | On-off control system based on digital signal amplitade modulated receiver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865153Y (en) * | 2005-11-24 | 2007-01-31 | 庄鸿仁 | Mobile phone with voice input function |
| CN102510270A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Duplexer, radio-frequency front module, multi-mode terminal and filtering method of duplexer |
| CN102568118A (en) * | 2011-12-30 | 2012-07-11 | 常州大学 | USB (Universal Serial Bus) data download interface based on embedded POS (Point of Sales) machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729674B2 (en) * | 2007-01-09 | 2010-06-01 | Skyworks Solutions, Inc. | Multiband or multimode receiver with shared bias circuit |
-
2015
- 2015-03-11 CN CN201510106916.XA patent/CN104639203B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865153Y (en) * | 2005-11-24 | 2007-01-31 | 庄鸿仁 | Mobile phone with voice input function |
| CN102510270A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Duplexer, radio-frequency front module, multi-mode terminal and filtering method of duplexer |
| CN102568118A (en) * | 2011-12-30 | 2012-07-11 | 常州大学 | USB (Universal Serial Bus) data download interface based on embedded POS (Point of Sales) machine |
Non-Patent Citations (1)
| Title |
|---|
| 移动通信终端多媒体系统设计;鲍军民;《电视技术》;20080430;说明书第1页-第2页第5段，附图1 * |
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| Publication number | Publication date |
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| CN104639203A (en) | 2015-05-20 |
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Granted publication date: 20180501 Termination date: 20190311 |