CN103139879B - A kind of wireless personal local area network communication system - Google Patents
A kind of wireless personal local area network communication system Download PDFInfo
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- CN103139879B CN103139879B CN201110385664.0A CN201110385664A CN103139879B CN 103139879 B CN103139879 B CN 103139879B CN 201110385664 A CN201110385664 A CN 201110385664A CN 103139879 B CN103139879 B CN 103139879B
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- 238000012545 processing Methods 0.000 claims abstract description 154
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- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
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- 238000001228 spectrum Methods 0.000 claims description 6
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- 238000004148 unit process Methods 0.000 claims 3
- 238000013461 design Methods 0.000 abstract description 10
- 238000012827 research and development Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
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Abstract
The present invention is applicable to the communications field, it is provided that a kind of wireless personal local area network communication system, this system includes radiofrequency signal processing unit, baseband processing unit, medium access control processing unit, signal processing unit, application interface unit and power supply unit.Unlike the prior art, in the embodiment of the present invention, radiofrequency signal processing unit, baseband processing unit, medium access control processing unit, signal processing unit, application interface unit and power supply unit use system on chip structure design, it is collectively disposed on one chip, thus improve the motility of system research and development, physical Design reduces the volume of system, reduces system power dissipation, and cost of manufacture reduces, and eliminates the application bottleneck of wireless personal local area network communication system.
Description
Technical field
The invention belongs to the communications field, particularly relate to a kind of wireless personal local area network being applied to ZigBee network and lead to
Communication system.
Background technology
Wireless personal local area network is a kind of PAN (Personal Area Network) using wireless connections, its be widely used in logistics,
Medical treatment, monitor, the Small Extension Node. Communications in the field such as plantation.Support wireless personal local area network include bluetooth,
ZigBee, overclocking wave band etc..
The wireless personal local area network communication system that prior art provides usually uses general kernel processor chip
Come external radio frequency chip, medium access control (Medium Access Control, MAC) chip, base band
Process the discrete signal processing chips such as chip.Owing to the hardware of discrete each chip has been fixed, limit
The motility of research and development, is typically only capable to carry out the exploitation of procotol on the basis of existing hardware and operating system
And the exploitation of application layer, and the volume of system, cost and power consumption can not be reduced in physical Design so that existing
Some wireless personal local area network communication system volumes are bigger, relatively costly, power consumption is relatively big, and become restriction system
The bottleneck of system application.
Summary of the invention
It is an object of the invention to provide a kind of wireless personal local area network communication system, it is intended to solve prior art
The wireless personal local area network communication system provided is discrete due to it each chip included so that system bulk
Bigger, relatively costly, power consumption is relatively big, the problem limiting system application.
The present invention is achieved in that a kind of wireless personal local area network communication system, and described system includes radio frequency
Signal processing unit, baseband processing unit, medium access control processing unit, signal processing unit, application
Interface unit and power supply unit；
At described radiofrequency signal processing unit, baseband processing unit, medium access control processing unit, signal
Reason unit, application interface unit and power supply unit are collectively disposed on one chip.
In the embodiment of the present invention, radiofrequency signal processing unit, baseband processing unit, medium access control process
Unit, signal processing unit, application interface unit and power supply unit use system on chip structure design, altogether
With being placed on one chip, thus improve the motility of system research and development, physical Design reduces system
Volume, reduce system power dissipation, and cost of manufacture reduce, eliminate wireless personal local area network communication system
Application bottleneck.
Accompanying drawing explanation
Fig. 1 is the structure chart of the wireless personal local area network communication system that the embodiment of the present invention provides；
Fig. 2 is the structure chart of application interface unit in Fig. 1；
Fig. 3 is the structure chart of signal processing unit in Fig. 1；
Fig. 4 is that Fig. 1 medium accesses the structure chart controlling processing unit；
Fig. 5 is the structure chart of baseband processing unit in Fig. 1；
Fig. 6 is the structure chart of radiofrequency signal processing unit in Fig. 1；
Fig. 7 is the structure chart of power supply unit in Fig. 1.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
In order to overcome, the volume existing for the wireless personal local area network communication system that prior art provides is big, power consumption
Big problem, the wireless personal local area network communication system that the embodiment of the present invention provides have employed SOC(system on a chip) framework
Design, to reach to reduce volume, the purpose of reduction power consumption.
Fig. 1 shows the structure of the wireless personal local area network communication system that the embodiment of the present invention provides, and this is wireless
People's LAN communication system is the wireless personal local area network communication system being applied to ZigBee network, for the ease of saying
Bright, illustrate only the part relevant to the embodiment of the present invention.
The wireless personal local area network communication system that the embodiment of the present invention provides includes: radiofrequency signal processing unit 15,
Baseband processing unit 14, medium access control processing unit 13, signal processing unit 12, application interface unit
11 and power supply unit 16.
On the one hand, the radiofrequency signal received from exterior antenna is converted into numeral by radiofrequency signal processing unit 15
After baseband signal, baseband processing unit 14 be demodulated this digital baseband signal, solution extends to decoding process,
And the digital signal obtained after processing is sent to signal processing unit by medium access control processing unit 13
12, this digital signal that medium access control processing unit 13 is sent by signal processing unit 12 answers use
After reason, send corresponding applying unit to by application interface unit 11.
On the other hand, applying unit can also be treated to signal processing unit 12 transmission by application interface unit 11
Transmission signal, after signal processing unit 12 carries out respective application process to this signal to be transmitted, is visited by medium
Ask the digital signal controlling processing unit 13 after baseband processing unit 14 transmission processes, baseband processing unit 14
Is obtained after medium access control processing unit 13 is sent encoding digital signals, spread spectrum and modulation treatment
Digital baseband signal, and send this digital baseband signal to radiofrequency signal processing unit 15, by radiofrequency signal
After this baseband signal is converted into radiofrequency signal by processing unit 15, sent by exterior antenna.
Unlike the prior art, in the embodiment of the present invention, radiofrequency signal processing unit 15, baseband processing unit
14, medium access control processing unit 13, signal processing unit 12, application interface unit 11 and power supply are single
Unit 16 uses system on chip structure design, is collectively disposed on one chip, thus improves the spirit of system research and development
Activity, reduces the volume of system in physical Design, reduces system power dissipation, and cost of manufacture reduces,
Eliminate the application bottleneck of wireless personal local area network communication system.
Fig. 2 shows the structure of application interface unit 11 in Fig. 1.
Specifically, application interface unit 11 may include that the first analog-to-digital conversion module 111, for by single for application
After the signal to be transmitted that unit sends is converted into digital signal, send signal processing unit 12 to；First digital-to-analogue turns
Die change block 112, after the digital signal after being processed by signal processing unit 12 is converted into analogue signal, transmits
To corresponding applying unit；And/or be connected between signal processing unit 12 and corresponding applying unit general
Input/output interface module 113.
Fig. 3 shows the structure of signal processing unit 12 in Fig. 1.
Specifically, signal processing unit 12 may include that flash memory module 123；Static memory module 124；
Signal processing module 121, answers use for the digital signal sending medium access control processing unit 13
Manage, and the signal to be transmitted sent applying unit by application interface unit 11 carries out respective application process；
SOC(system on a chip) bus module 122, is used for connecting flash memory module 123, static memory module 124, signal
Processing module 121, application interface unit 11 and medium access control processing unit 13.
Wherein, signal processing unit 12 preferably employs the processor that model is ARM926；SOC(system on a chip) bus
Module 122 preferably employs Advanced High-performance Bus (Advanced High performance Bus, AHB).
Fig. 4 shows that Fig. 1 medium accesses the structure controlling processing unit 13.
Specifically, medium access control processing unit 13 may include that Co-processor Module 132, at least one connects
Receive state machine 131 and at least one sends state machine 133；Co-processor Module 132 is according to signal processing unit
The state machine that 12 send enables control signal, controls the corresponding state machine 131 that receives and receives baseband processing unit 14
Digital signal after process, and by receiving state machine 131 accordingly, this digital signal received is sent to letter
Number processing unit 12, and control the corresponding state machine 133 that sends and receive treating after signal processing unit 12 processes
Transmission signal, and by sending state machine 133 accordingly, this signal to be transmitted received is sent to Base-Band Processing
Unit 14.
Fig. 5 is the structure of baseband processing unit 14 in Fig. 1.
Specifically, baseband processing unit 14 may include that Signal coding module 141, for medium access control
The encoding digital signals that processing unit 13 processed sends sends after processing；Spread spectrum module 142, for signal
The digital signal that coding module 141 sends sends after carrying out spread processing；First modulation module 143, for right
After the digital signal that spread spectrum module 142 sends is modulated processing, the baseband signal obtained is sent to radio frequency letter
Number processing unit 15.
Baseband processing unit 14 can also include: synchronizes search module 148, at simultaneous extraction radiofrequency signal
Digital baseband signal after reason unit 15 conversion；Channel parameter estimation module 147, for synchronizing search module
148 digital baseband signals extracted send after carrying out channel parameter estimation；First demodulation module 146, is used for
The digital baseband signal sending channel parameter estimation module 147 sends after being demodulated processing；Despreading module
145, the digital baseband signal for sending the first demodulation module 146 sends after carrying out despreading process；Channel
Decoder module 144, for despreading module 145 send digital baseband signal be decoded process, and will at
The digital signal obtained after reason is sent to medium access control processing unit 13.
Fig. 6 is the structure of radiofrequency signal processing unit 15 in Fig. 1.
Specifically, radiofrequency signal processing unit 15 may include that the second D/A converter module 151, for base
The digital baseband signal that tape handling unit 14 transmits carries out digital-to-analogue conversion process, defeated after obtaining analog baseband signal
Go out；Second modulation module 152, for carrying out the analog baseband signal of the second D/A converter module 151 output
Modulation treatment；Signal amplification module 153, for the signal that will obtain after the second modulation module 152 modulation treatment
It is amplified processing, obtains radiofrequency signal and sent by exterior antenna；
Radiofrequency signal processing unit 15 can also include: radiofrequency signal amplification module 154, and being used for will be from outside sky
The radiofrequency signal that line receives is amplified processing；Second demodulation module 155, for amplifying mould to radiofrequency signal
Radiofrequency signal after block 154 amplifies is demodulated processing；Intermediate-freuqncy signal amplification module 156, for solving second
Signal after mode transfer block 155 demodulation process carries out intermediate frequency processing and amplifying；Second analog-to-digital conversion module 157, is used for
After signal after intermediate-freuqncy signal amplification module 156 intermediate frequency processing and amplifying is converted into digital baseband signal, will obtain
Digital baseband signal be sent to baseband processing unit 14.
In order to reduce system power dissipation further, in the embodiment of the present invention, power supply unit 16 also has low-power consumption electricity
The function of source control, now, radiofrequency signal processing unit 15 can also include: energy detection module 158, uses
The channel energy of the signal after detecting the second demodulation module 155 demodulation process, and testing result signal is sent
To power supply unit 16, power supply unit 16, according to the testing result signal received, controls radiofrequency signal and processes single
Unit 15, baseband processing unit 14, medium access control processing unit 13, signal processing unit 12, Yi Jiying
Enter minimum mode of operation with interface unit 11 or recover normal mode of operation.
Fig. 7 shows the structure of power supply unit 16 in Fig. 1.
Specifically, power supply unit 16 may include that battery 161；Battery management module 162, for battery
161 carry out electric energy outgoing management；Voltage stabilizing module 163, for being converted into the magnitude of voltage that battery 161 exports accordingly
Magnitude of voltage after, output to radiofrequency signal processing unit 15, baseband processing unit 14, medium access control at
Reason unit 13, signal processing unit 12 and application interface unit 11；Low power consumption control module 164, for root
The testing result signal sent according to energy detection module 158, by controlling battery management module 162 and voltage stabilizing mould
Block 163, so control Voltage stabilizing module 163 to corresponding radiofrequency signal processing unit 15, baseband processing unit 14,
Medium access control processing unit 13, signal processing unit 12 or application interface unit 11 output voltage values, with
Make radiofrequency signal processing unit 15, baseband processing unit 14, medium access control processing unit 13, signal
Processing unit 12 and application interface unit 11 enter minimum operational module or recover normal mode of operation, thus
Complete the function of low-power dissipation power supply management.
In the embodiment of the present invention, radiofrequency signal processing unit 15, baseband processing unit 14, medium access control
Processing unit 13, signal processing unit 12, application interface unit 11 and power supply unit 16 use SOC(system on a chip)
Structure designs, and is collectively disposed on one chip, thus improves the motility of system research and development, in physical Design
On reduce the volume of system, reduce system power dissipation, and cost of manufacture reduces, and eliminates radio individual office
The application bottleneck of territory network communication system.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (5)
1. a wireless personal local area network communication system, it is characterised in that described system includes at radiofrequency signal
Reason unit, baseband processing unit, medium access control processing unit, signal processing unit, application interface list
Unit and power supply unit；
At described radiofrequency signal processing unit, baseband processing unit, medium access control processing unit, signal
Reason unit, application interface unit and power supply unit are collectively disposed on one chip；
Described application interface unit includes:
First analog-to-digital conversion module, is converted into number for the signal to be transmitted described application interface unit sent
After word signal, send described signal processing unit to；
First D/A converter module, for being converted into mould by the digital signal after described signal processing unit processes
After intending signal, send corresponding applying unit to；And/or
Universal input/the output being connected between described signal processing unit and corresponding described applying unit connects
Mouth die block；
Described signal processing unit includes:
Flash memory module；
Static memory module；
Signal processing module, the digital signal for sending described medium access control processing unit is carried out should
With process, and the signal described to be transmitted sent described applying unit by described application interface unit is entered
Row respective application processes；
SOC(system on a chip) bus module, is used for connecting described flash memory module, static memory module, signal
Processing module, application interface unit and medium access control processing unit；
Described medium access control processing unit includes: Co-processor Module, at least one receive state machine, with
And at least one sends state machine；
The state machine that described Co-processor Module sends according to described signal processing unit enables control signal, controls
Corresponding described reception state machine receives the digital signal after described baseband processing unit processes, and by accordingly
The described digital signal received is sent to described signal processing unit by described reception state machine；And control
Signal described to be transmitted after the corresponding described transmission state machine described signal processing unit processes of reception, and by
The signal described to be transmitted received is sent to described baseband processing unit by corresponding described transmission state machine；
Described baseband processing unit includes:
Signal coding module, compiles for the digital signal sending described medium access control processing unit
Code sends after processing；
Spread spectrum module, the digital signal for sending described Signal coding module sends after carrying out spread processing；
First modulation module, after the digital signal for sending described spread spectrum module is modulated processing, will
The baseband signal obtained is sent to described radiofrequency signal processing unit；
Synchronize search module, the digital baseband letter after radiofrequency signal processing unit conversion described in simultaneous extraction
Number；
Channel parameter estimation module, is carried out for the digital baseband signal extracting described synchronization search module
Send after channel parameter estimation；
First demodulation module, solves for the digital baseband signal sending described channel parameter estimation module
Send after mediating reason；
Despreading module, after the digital baseband signal for sending described first demodulation module carries out despreading process
Send；
Channel decoding module, the digital baseband signal for sending described despreading module is decoded processing,
And the digital signal obtained after processing is sent to described medium access control processing unit；
Described radiofrequency signal processing unit includes:
Second D/A converter module, for the digital baseband signal number transmitting described baseband processing unit
Mould conversion process, exports after obtaining analog baseband signal；
Second modulation module, for entering the described analog baseband signal of described second D/A converter module output
Row modulation treatment；
Signal amplification module, for being amplified the signal obtained after described second modulation module modulation treatment
Process, obtain radiofrequency signal and sent by exterior antenna；
Radiofrequency signal amplification module, from being amplified the radiofrequency signal received from described exterior antenna
Reason；
Second demodulation module, the radiofrequency signal after amplifying described radiofrequency signal amplification module is demodulated
Process；
Intermediate-freuqncy signal amplification module, for carrying out intermediate frequency to the signal after described second demodulation module demodulation process
Processing and amplifying；
Second analog-to-digital conversion module, for by the signal after described intermediate-freuqncy signal amplification module intermediate frequency processing and amplifying
After being converted into digital baseband signal, the digital baseband signal obtained is sent to described baseband processing unit.
2. wireless personal local area network communication system as claimed in claim 1, it is characterised in that described radio frequency
After the radiofrequency signal received from exterior antenna is converted into digital baseband signal by signal processing unit, by described
Described digital baseband signal is demodulated by baseband processing unit, solution extends to decoding process, and will obtain after processing
To digital signal be sent to described signal processing unit by described medium access control processing unit, described
After signal processing unit carries out application process to the digital signal that described medium access control processing unit sends,
Corresponding applying unit is sent to by described application interface unit.
3. wireless personal local area network communication system as claimed in claim 2, it is characterised in that described application
Unit sends signal to be transmitted by described application interface unit to described signal processing unit, at described signal
After reason unit carries out respective application process to described signal to be transmitted, processed single by described medium access control
Unit's digital signal after described baseband processing unit transmission processes, described baseband processing unit is to described medium
Access and obtain baseband signal after controlling encoding digital signals, spread spectrum and the modulation treatment that processing unit sends,
And described baseband signal is sent to described radiofrequency signal processing unit, will by described radiofrequency signal processing unit
After described baseband signal is converted into radiofrequency signal, sent by described exterior antenna.
4. wireless personal local area network communication system as claimed in claim 3, it is characterised in that described signal
Processing unit be model be the processor of ARM926；Described SOC(system on a chip) bus module is that advanced high-performance is total
Line.
5. wireless personal local area network communication system as claimed in claim 3, it is characterised in that described radio frequency
Signal processing unit also includes: energy detection module, after being used for detecting described second demodulation module demodulation process
The channel energy of signal, and testing result signal is sent to said supply unit；
Said supply unit, according to the described testing result signal received, controls described radiofrequency signal and processes single
Unit, baseband processing unit, medium access control processing unit, signal processing unit and application interface list
Unit enters minimum mode of operation or recovers normal mode of operation.
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| CN201110385664.0A CN103139879B (en) | 2011-11-28 | 2011-11-28 | A kind of wireless personal local area network communication system |
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| CN201110385664.0A CN103139879B (en) | 2011-11-28 | 2011-11-28 | A kind of wireless personal local area network communication system |
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| CN103139879B true CN103139879B (en) | 2016-12-07 |
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| KR102407917B1 (en) * | 2015-11-12 | 2022-06-10 | 삼성전자주식회사 | Multi-Processor System Including Memory Shared By Multi-Processor And Method there-of |
| CN109035670A (en) * | 2018-10-12 | 2018-12-18 | 湖北旭兴达科技有限公司 | A kind of fire alarm system and its address coding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1893299A (en) * | 2005-06-01 | 2007-01-10 | 美国博通公司 | Wireless communication method and system |
| CN1893382A (en) * | 2005-06-01 | 2007-01-10 | 美国博通公司 | Method and apparatus for providing wireless communication |
| CN102067689A (en) * | 2008-06-16 | 2011-05-18 | 马维尔国际贸易有限公司 | Short-range wireless communication |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1893299A (en) * | 2005-06-01 | 2007-01-10 | 美国博通公司 | Wireless communication method and system |
| CN1893382A (en) * | 2005-06-01 | 2007-01-10 | 美国博通公司 | Method and apparatus for providing wireless communication |
| CN102067689A (en) * | 2008-06-16 | 2011-05-18 | 马维尔国际贸易有限公司 | Short-range wireless communication |
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