CN101478764A - Digital household gateway reconfigurable system and method thereof - Google Patents
Digital household gateway reconfigurable system and method thereof Download PDFInfo
- Publication number
- CN101478764A CN101478764A CNA2009100371072A CN200910037107A CN101478764A CN 101478764 A CN101478764 A CN 101478764A CN A2009100371072 A CNA2009100371072 A CN A2009100371072A CN 200910037107 A CN200910037107 A CN 200910037107A CN 101478764 A CN101478764 A CN 101478764A
- Authority
- CN
- China
- Prior art keywords
- reconfigurable
- unit
- digital
- module
- software
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention provides a reconfigurable system and a method for connected home gateway. The system comprises the three successively-connected parts which are a wireless RF front end, an intermediate frequency signal processing unit and a PC which is provided with a reconfigurable unit. The reconfigurable unit consists of the three successively-connected parts which are a physical layer processing module, a MAC layer processing module, an IP layer processing module, a transmission layer processing module and an application layer processing module. The PC is also provided with a piece of reconfigurable software. The method comprises the following procedures: the reconfigurable software is used for reconfiguring the parameter and function of each unit and each module in the system, thus obtaining wireless radio frequency signals with different modes, digital intermediate frequency signals and digital baseband signals and allowing the system to realize the actually-needed wireless communication mode. The reconfigurable system and a method for connected home gateway allow the connected home gateway to support the integration of different wireless communication systems and allow the connected home gateway to support a plurality of access technique.
Description
Technical field
The present invention relates to the digital home wireless network field, particularly digital household gateway reconfigurable system and method thereof.
Background technology
Digital home is the concrete product that IT, information home, communication highly merge, and the emphasis of digital home is interconnection and merge.Digital home gateway is the key in the digital home, plays crucial effects in digital home network, be to make in the household internal network to realize networking between the various smart machines, and household internal and the external network bridge of getting in touch.Pass through digital home gateway, the user can conduct interviews to home network from the public network and control, and realizes the various communications in the household internal network, amusement, household electrical appliance, electric lighting, safety device and water, electricity and gas hotlist etc. are carried out telemonitoring, control and manage.
Wireless technology has special advantages, the digital home network that can provide WLAN (wireless local area network), multimedia and memory technology to integrate easily.Existing in the market family wireless network technical solution is generally in the technical foundation of 802.11x (802.11a/802.11g) wireless lan (wlan); Simultaneously, there is ultra broadband (UWB) technology of very low power consumption and very high data transmission bauds also to become a kind of emerging Radio Transmission Technology.But standard in the digital home wireless net and disunity except 802.11x and UWB technology, also have wireless network transmissions standards such as bluetooth, Zigbee.In addition, mobile communication (GSM), Digital Television (UHF/VHF) use in the family all will increase the complexity of digital home wireless network access technique.As the access carrier of digital home wireless network, digital home gateway need adapt to different radio communication standards, could realize that the isomery of wireless network merges.
The isomery of wireless network merges and can realize that the most key terminal of multiple wireless technology of supporting is flexibly exactly reshuffled in a plurality of aspects such as terminal, network, business, and its technical foundation is exactly a software radio.
The software radio notion proposed first in the later stage seventies 20th century, began broad research the nineties.Desirable software and radio technique can close the variation that terminal realizes arbitrary patterns by configure network devices.The core concept of software radio is: with the as close as possible antenna of digital-to-analogue conversion, finish radio function as much as possible with software.The communication function that software is realized adopts idea of modular, by the practicality of various convertible, alternative, customizable, reusable assembly modules, finishes the reconfigurable ability of terminal.
End-to-end reconfiguration technology comprises terminal reconfiguration technology, Network reconfiguration technology and professional reconfiguration technology.Existing reconfiguration technology generally is based on field programmable gate array (FPGA) and this class programmable hardware of digital signal processor (DSP) is realized reshuffling, and the ability of reshuffling is stronger.But the assembler language that is used for the language such as VERILOG, VHDL of FPGA and DSP all is the product at particular vendor, make the software under this mode be too dependent on concrete hardware, portable relatively poor, development process is more loaded down with trivial details, and the exploitation proving period is long.Because dsp processor is a special chip, and its disposal ability and extensibility are subjected to intrinsic constraint, extended MAC layer and above application thereof thereon is subjected to more restriction in addition.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of digital household gateway reconfigurable system is provided, this system makes digital home gateway can support the isomery of different wireless communication standard to merge, and makes gateway can support multiple access technology.
Another object of the present invention is to provide a kind of reconfigurable method of digital home gateway that is used for said system.
The present invention is achieved through the following technical solutions: a kind of digital household gateway reconfigurable system, comprise the wireless RF front end, intermediate-freuqncy signal processing unit and the PC that connect successively, be provided with reconfigurable unit among the described PC, reconfigurable unit is connected to form successively by physical layer process module, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module, and the reconfigurable software that is used for each unit of configuration-system and module parameter also is installed among the described PC.
Described intermediate-freuqncy signal processing unit adopts FPGA.
Wherein, the mutual conversion of digital baseband signal between physical layer and application layer is responsible for realizing in reconfigurable unit; The intermediate-freuqncy signal processing unit is responsible for realizing the mutual conversion of digital medium-frequency signal and digital baseband signal; The wireless RF front end is responsible for realizing the mutual conversion of the radio frequency signal and the digital medium-frequency signal of each frequency range.
A kind of reconfigurable method of digital home gateway that is used for the above system of the present invention may further comprise the steps:
(1) system judges whether the configuration packet download of renewal; If then carry out step (2); If not, then carry out step (4);
(2) system downloads configuration packet, the keeper carries out and judges whether to upgrade configuration packet then; If then carry out step (3); If not, then carry out step (4);
(3) upgrade configuration packet;
(4) default value that judges whether to carry out in the configuration packet is reshuffled; If then reconfigurable software is reshuffled according to default value; If not, then the keeper reshuffles by unit or module that reconfigurable software selection needs;
(5) finish reshuffle after, according to actual needs, whole digital household gateway reconfigurable system brings into operation.
The process of reshuffling described in the step (4) specifically may further comprise the steps:
If (4-1) reshuffle according to default value, then reconfigurable running software is as follows:
(4-1-1) the reconfigurable unit among the default value configuration PC in the reconfigurable software execution configuration packet;
(4-1-2) reconfigurable software is carried out the default value configuration intermediate-freuqncy signal processing unit in the configuration packet;
(4-1-3) reconfigurable software is carried out the default value configuration wireless RF front end in the configuration packet;
If (4-2) keeper reshuffles by unit or module that reconfigurable software selection needs, then reconfigurable running software is as follows:
(4-2-1) keeper optionally disposes reconfigurable unit among the PC by reconfigurable software;
(4-2-2) keeper optionally disposes the intermediate-freuqncy signal processing unit by reconfigurable software;
(4-2-3) keeper optionally disposes the wireless RF front end by reconfigurable software.
The object of reshuffling described in the step (4) comprises the physical layer process module in wireless RF front end, intermediate-freuqncy signal processing unit, the reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module.Wherein, the parameter configuration that each module realizes by reconfigurable software in the reconfigurable unit comprises modulation demodulation system, filtering mode and error correction coding decoding process etc.; The functional configuration that the intermediate-freuqncy signal processing unit is realized by reconfigurable software comprises the language codes of the Verilog that finishes comb filtering, pectination interpolation, Digital Down Convert, communicates by letter with PC etc.; The parameter configuration that the wireless RF front end is realized by the course configuration software comprises radio frequency carrier frequency, AD/DA sampling rate, medium-frequency IF frequency and RF gain etc.By to the reshuffling of above each unit and module, can obtain radio frequency signal, digital medium-frequency signal and the digital baseband signal of different mode, thereby make system realize the radio communication standard of actual needs.
The whole digital household gateway reconfigurable system of operation described in the step (5) when system's received signal, specifically may further comprise the steps:
(5-1) the wireless RF front end receives radio frequency signal, carries out the AD sampling after it is down-converted to medium-frequency IF, forms digital medium-frequency signal at last and sends the intermediate-freuqncy signal processing unit to;
(5-2) the intermediate-freuqncy signal processing unit receives digital medium-frequency signal, and it is carried out Digital Down Convert and filtering interpolation, and the bandwidth of digital medium-frequency signal and speed convert digital baseband signal to after reducing, and send PC to;
(5-3) PC receives digital baseband signal, the physical layer process module of its reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module are finished physical layer process, the processing of MAC layer, the processing of IP layer, transport layer process and the application layer process to digital baseband signal successively, obtain the signal that the user receives at last;
When system sends signal, more than in each step in each unit and the module conveying of each signal be reversed.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by to the reshuffling of each unit and module in the system, and digital home gateway has the ability of reshuffling of software download flexibly and wireless technology, makes the user and professionally be permitted to select suitable wireless access technology according to the residing environmental characteristic of terminal.
Description of drawings
Fig. 1 is system configuration of the present invention and conversion of signals schematic diagram.
Fig. 2 is the connection diagram of inner each module in reconfigurable unit and reconfigurable software in the system of the present invention.
Fig. 3 is a method flow diagram of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
A kind of digital household gateway reconfigurable system of the present invention, its structure as shown in Figure 1, 2, comprise the wireless RF front end, intermediate-freuqncy signal processing unit and the PC that connect successively, be provided with reconfigurable unit among the described PC, reconfigurable unit is connected to form successively by physical layer process module, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module, and the reconfigurable software that is used for each unit of configuration-system and module parameter also is installed among the described PC.
Described intermediate-freuqncy signal processing unit adopts FPGA.
Wherein, conversion of signals as shown in Figure 1, the mutual conversion of digital baseband signal between physical layer and application layer is responsible for realizing in reconfigurable unit; The intermediate-freuqncy signal processing unit is responsible for realizing the mutual conversion of digital medium-frequency signal and digital baseband signal; The wireless RF front end is responsible for realizing the mutual conversion of the radio frequency signal and the digital medium-frequency signal of each frequency range.
A kind of reconfigurable method of digital home gateway that is used for the above system of the present invention as shown in Figure 3, may further comprise the steps:
(1) system judges whether the configuration packet download of renewal; If then carry out step (2); If not, then carry out step (4);
(2) system downloads configuration packet, the keeper carries out and judges whether to upgrade configuration packet then; If then carry out step (3); If not, then carry out step (4);
(3) upgrade configuration packet;
(4) default value that judges whether to carry out in the configuration packet is reshuffled; If then reconfigurable software is reshuffled according to default value; If not, then the keeper reshuffles by unit or module that reconfigurable software selection needs;
(5) finish reshuffle after, according to actual needs, whole digital household gateway reconfigurable system brings into operation.
The process of reshuffling described in the step (4) specifically may further comprise the steps:
If (4-1) reshuffle according to default value, then reconfigurable running software is as follows:
(4-1-1) the reconfigurable unit among the default value configuration PC in the reconfigurable software execution configuration packet;
(4-1-2) reconfigurable software is carried out the default value configuration intermediate-freuqncy signal processing unit in the configuration packet;
(4-1-3) reconfigurable software is carried out the default value configuration wireless RF front end in the configuration packet;
If (4-2) keeper reshuffles by unit or module that reconfigurable software selection needs, then reconfigurable running software is as follows:
(4-2-1) keeper optionally disposes reconfigurable unit among the PC by reconfigurable software;
(4-2-2) keeper optionally disposes the intermediate-freuqncy signal processing unit by reconfigurable software;
(4-2-3) keeper optionally disposes the wireless RF front end by reconfigurable software.
The object of reshuffling described in the step (4) comprises the physical layer process module in wireless RF front end, intermediate-freuqncy signal processing unit, the reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module.Wherein, the parameter configuration that each module realizes by reconfigurable software in the reconfigurable unit comprises modulation demodulation system, filtering mode and error correction coding decoding process etc.; The functional configuration that the intermediate-freuqncy signal processing unit is realized by reconfigurable software comprises the language codes of the Verilog that finishes comb filtering, pectination interpolation, Digital Down Convert, communicates by letter with PC etc.; The parameter configuration that the wireless RF front end is realized by the course configuration software comprises radio frequency carrier frequency, AD/DA sampling rate, medium-frequency IF frequency and RF gain etc.By to the reshuffling of above each unit and module, can obtain radio frequency signal, digital medium-frequency signal and the digital baseband signal of different mode, thereby make system realize the radio communication standard of actual needs.
The whole digital household gateway reconfigurable system of operation described in the step (5) when system's received signal, specifically may further comprise the steps:
(5-1) the wireless RF front end receives radio frequency signal, carries out the AD sampling after it is down-converted to medium-frequency IF, forms digital medium-frequency signal at last and sends the intermediate-freuqncy signal processing unit to;
(5-2) the intermediate-freuqncy signal processing unit receives digital medium-frequency signal, and it is carried out Digital Down Convert and filtering interpolation, and the bandwidth of digital medium-frequency signal and speed convert digital baseband signal to after reducing, and send PC to;
(5-3) PC receives digital baseband signal, the physical layer process module of its reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module are finished physical layer process, the processing of MAC layer, the processing of IP layer, transport layer process and the application layer process to digital baseband signal successively, obtain the signal that the user receives at last;
When system sends signal, more than in each step in each unit and the module conveying of each signal be reversed.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (6)
1, a kind of digital household gateway reconfigurable system, it is characterized in that, comprise the wireless RF front end, intermediate-freuqncy signal processing unit and the PC that connect successively, be provided with reconfigurable unit among the described PC, reconfigurable unit is connected to form successively by physical layer process module, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module, and the reconfigurable software that is used for each unit of configuration-system and module parameter also is installed among the described PC.
2, digital household gateway reconfigurable system according to claim 1 is characterized in that, described intermediate-freuqncy signal processing unit adopts FPGA.
3, a kind of reconfigurable method of digital home gateway that is used for each described system of claim 1～2 is characterized in that, may further comprise the steps:
(1) system judges whether the configuration packet download of renewal; If then carry out step (2); If not, then carry out step (4);
(2) system downloads configuration packet, the keeper carries out and judges whether to upgrade configuration packet then; If then carry out step (3); If not, then carry out step (4);
(3) upgrade configuration packet;
(4) default value that judges whether to carry out in the configuration packet is reshuffled; If then reconfigurable software is reshuffled according to default value; If not, then the keeper reshuffles by unit or module that reconfigurable software selection needs;
(5) finish reshuffle after, according to actual needs, whole digital household gateway reconfigurable system brings into operation.
4, the reconfigurable method of digital home gateway according to claim 3 is characterized in that, the process of reshuffling described in the step (4) specifically may further comprise the steps:
If (4-1) reshuffle according to default value, then reconfigurable running software is as follows:
(4-1-1) the reconfigurable unit among the default value configuration PC in the reconfigurable software execution configuration packet;
(4-1-2) reconfigurable software is carried out the default value configuration intermediate-freuqncy signal processing unit in the configuration packet;
(4-1-3) reconfigurable software is carried out the default value configuration wireless RF front end in the configuration packet;
If (4-2) keeper reshuffles by unit or module that reconfigurable software selection needs, then reconfigurable running software is as follows:
(4-2-1) keeper optionally disposes reconfigurable unit among the PC by reconfigurable software;
(4-2-2) keeper optionally disposes the intermediate-freuqncy signal processing unit by reconfigurable software;
(4-2-3) keeper optionally disposes the wireless RF front end by reconfigurable software.
5, the reconfigurable method of digital home gateway according to claim 3, it is characterized in that the object of reshuffling described in the step (4) comprises the physical layer process module in wireless RF front end, intermediate-freuqncy signal processing unit, the reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module.
6, the reconfigurable method of digital home gateway according to claim 3 is characterized in that, the whole digital household gateway reconfigurable system of operation described in the step (5) when system's received signal, specifically may further comprise the steps:
(5-1) the wireless RF front end receives radio frequency signal, carries out the AD sampling after it is down-converted to medium-frequency IF, forms digital medium-frequency signal at last and sends the intermediate-freuqncy signal processing unit to;
(5-2) the intermediate-freuqncy signal processing unit receives digital medium-frequency signal, and it is carried out Digital Down Convert and filtering interpolation, and the bandwidth of digital medium-frequency signal and speed convert digital baseband signal to after reducing, and send PC to;
(5-3) PC receives digital baseband signal, the physical layer process module of its reconfigurable unit, MAC layer processing module, IP layer processing module, transport layer process module and application layer process module are finished physical layer process, the processing of MAC layer, the processing of IP layer, transport layer process and the application layer process to digital baseband signal successively, obtain the signal that the user receives at last;
When system sends signal, more than in each step in each unit and the module conveying of each signal be reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100371072A CN101478764B (en) | 2009-02-09 | 2009-02-09 | Digital household gateway reconfigurable system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100371072A CN101478764B (en) | 2009-02-09 | 2009-02-09 | Digital household gateway reconfigurable system and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101478764A true CN101478764A (en) | 2009-07-08 |
| CN101478764B CN101478764B (en) | 2011-06-15 |
Family
ID=40839383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100371072A Expired - Fee Related CN101478764B (en) | 2009-02-09 | 2009-02-09 | Digital household gateway reconfigurable system and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101478764B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697640B (en) * | 2009-10-10 | 2015-05-06 | 赵明 | Software radio-based wireless communication customer premises equipment |
| CN107864162A (en) * | 2017-12-22 | 2018-03-30 | 烽火通信科技股份有限公司 | Convergence gateway dual system and its communication security guard method |
-
2009
- 2009-02-09 CN CN2009100371072A patent/CN101478764B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697640B (en) * | 2009-10-10 | 2015-05-06 | 赵明 | Software radio-based wireless communication customer premises equipment |
| CN107864162A (en) * | 2017-12-22 | 2018-03-30 | 烽火通信科技股份有限公司 | Convergence gateway dual system and its communication security guard method |
| CN107864162B (en) * | 2017-12-22 | 2019-12-17 | 烽火通信科技股份有限公司 | fusion gateway dual system and communication safety protection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101478764B (en) | 2011-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8711951B2 (en) | Powerline communication device with load characterization functionality | |
| CN101662448B (en) | Wireless communication method of high-speed sampling low-accuracy quantification impulse ultra-wideband | |
| CN105610449A (en) | Dual-mode radio frequency transceiving architecture | |
| US8498602B2 (en) | Architecture of future open wireless architecture (OWA) radio system | |
| CN101945490A (en) | Software radio-based wireless communication system terminal equipment | |
| CN101217719B (en) | A realization method of receiver applied in dual-mode base station | |
| CN206353863U (en) | NB IoT radio communication devices | |
| CN201887751U (en) | Software radio development platform | |
| CN101478764B (en) | Digital household gateway reconfigurable system and method thereof | |
| CN107071994A (en) | Intelligent lamp system and its network-building method | |
| CN101662822B (en) | Energy-saving wireless communication transceiver based on constant modulus signals | |
| CN103024878A (en) | Low-energy-consumption wireless communication method | |
| CN102137513A (en) | Global system for mobile communication (GSM)/enhanced data rate for GSM evolution (EDGE)/time division synchronous code division multiple access (TD-SCDMA) transceiver and receiver | |
| CN202309693U (en) | Short wave automatic control communication unit based on radio frequency digitization | |
| CN103236970A (en) | ZigBee-technology-based Ethernet wireless receiving gateway | |
| CN101938292B (en) | Multimode multi-standard mobile phone radio frequency transceiver | |
| CN201528429U (en) | Mobile terminal and server for processing its data | |
| CN210670420U (en) | Optical modem or router system with voice interaction function | |
| CN201054608Y (en) | Digital home intelligent system based on Zigbee technology | |
| CN204759066U (en) | Intelligence house control terminal | |
| CN106603370A (en) | Data acquisition system and data acquisition method based on FSK | |
| CN208257837U (en) | A kind of communication network tutoring system | |
| CN206181019U (en) | Remote control chip of high integration | |
| Schiphorst et al. | The front end of software-defined radio: Possibilities and challenges | |
| CN204810309U (en) | Integrated nebula network communication protocol's communication module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20150209 |
|
| EXPY | Termination of patent right or utility model |