CN101984725A - Wireless access device and method - Google Patents
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Abstract
The invention discloses a wireless access device which mainly comprises a Wi-Fi wireless access module, a bluetooth wireless access module and a public data processing module. A bluetooth and Wi-Fi comprehensive wireless access point can be simultaneously accessed into a bluetooth terminal and a Wi-Fi terminal, thereby providing two wireless Internet access services for a terminal user; when one access way is blocked, the wireless access device can switch to the other access way for carrying out wireless access, thereby greatly improving the flexibility and the success rate of network access of the user. The wireless access device integrates the bluetooth and Wi-Fi comprehensive wireless access, and the two access technologies can complement each other, thereby providing the simpler network services for various wireless terminals, reducing the crowding probability of spatial data, playing a plurality of wireless functions of the terminals, relieving the pressure on bandwidth and data capacity crowding and providing a base for future multi-information network integration.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of wireless access device and method.
Technical background
WLAN is a Wireless Local Area Network(WLAN (wireless local area network)) abbreviation, refer to that the employing wireless communication technology is interconnected with communication equipment, the client can insert the Internet and enterprise network whenever and wherever possible by WAP (wireless access point) (AP) by terminals such as notebook computer, PDA, obtains information, amusement or handles official business.Support multimedia function, upload download, appreciate on-line film or music at any time.Very fast and stable wireless connections are provided.
The properties of product of industry optimum are supported video, the voice-and-data business of high-quality, two-forty and low time delay fully, main application scenarios comprises city focus, campus and shopping centre, wireless city, airport, star hotel, municipal administration, harbour and logistic industry, mining activities industry and many production fields, the wireless coverage of support adverse circumstances, high-speed mobile video transmission, high speed mobile terminal access, broadband wireless access etc.
From IEEE(U.S. IEEE in 1997) issued WLAN (wireless local area network) 802.11 standards, WLAN (wireless local area network) just begins to receive much concern.Along with the development of technology, standard is constantly improved and is begun differentiation, and as if in the atomization of standard, speed is the bottleneck of WLAN development always.
The content and the evolution of 802.11 standard series of IEEE are as follows:
IEEE 802.11b also is Wi-Fi (Wireless Fidelity), and adopting wave band is 2.4GHz.802.11b theoretical capacity be 11Mbps, actual maximum data rate is 6Mbps.Because the control problem of technology and cost, the 802.11b agreement is the wlan standard that is most widely used, and the product that meets this agreement is also maximum.Speed and wave band problem are the major obstacles that 802.11b further develops.
802.11a be the standard of first appearance in 802.11 protocol groups.802.11a use frequency range to be 5.8GHz, peak transfer rate is 54Mbps in theory, real data throughout maximum is about 25Mbps.802.11a significant disadvantages be exactly can not with the 802.11b intercommunication.
802.11g be the standard that IEEE puts into effect for the intercommunication that solves 802.11a and 802.11b, it is the continuity of 802.11b, uses the general frequency range of 2.4GHz equally, the interoperability height, and being expected is the wlan standard of a new generation.802.11g support 802.11b and 802.11a simultaneously, and rate-limit has been promoted to 54Mbps, market prospects a slice light.
Except above three fairly perfect versions, IEEE has also put into effect some plus versions of revising existing agreement defective, as the expansion of above agreement.
802.11e: this agreement joins qos feature on 802.11 networks, and it replaces the MAC layer of similar Ethernet with the TDMA mode, is that important data increase extra error correction.
802.11f: this agreement is formulated for the handover mechanism that improves in 802.11, so that the user can be between two different exchange partitions (wireless channel), or keeps linkage function when roaming between 2 access points on the different networks being added to.
802.11h: the main purpose of this agreement is that the through-put power of 802.11a and wireless channel are selected to increase better controlled function, and it combines with 802.11e, is applicable to European Region.
802.11i: this agreement is responsible for handling the most tangible problem of 802.11 networks: fail safe.
1.1.2 Bluetooth technology introduction
Bluetooth is the radiotechnics of a kind of support equipment short haul connection (generally being within the 10m).Can comprise that carrying out wireless messages between numerous equipment such as mobile phone, PDA, wireless headset, notebook computer, relevant peripheral hardware exchanges.The standard of bluetooth is IEEE802.15, be operated in the 2.4GHz frequency band, bandwidth is 1Mb/s, Bluetooth technology is used high-speed frequency-hopping (FH, Frequency Hopping) and time division multiple access (TDMA, advanced technologies such as Time DivesionMuli-access), in closely the most at an easy rate with several digitizers (various mobile devices, fixed communication apparatus, computer and terminal equipment thereof, various digital data system, as digital camera, digital camera etc., even various household electrical appliance, automation equipment) be netted link.Bluetooth technology will be the unified bridge of various peripheral interfaces in the network, and it has eliminated the line between the equipment, replaces with wireless connections.
Bluetooth 3.0 technical specifications
(on April 21st, 2009)
On April 21st, 2009, bluetooth sig (Bluetooth SIG) has formally been issued generation standard standard " Bluetooth Core Specification Version 3.0 High Speed " (3.0 editions high speeds of bluetooth core specification), the core of bluetooth 3.0 be " Generic Alternate MAC/PHY " (AMP), this is a kind of brand-new alternating radio frequency technology, allows bluetooth protocol repertory dynamically to select correct radio frequency at arbitrary task.The technology that is supposed to be used for new criteria at first comprises 802.11 and UMB, but has cancelled the application of UMB in the new criteria.
As the new edition standard, the transmission speed of bluetooth 3.0 naturally can be higher, and secret just on 802.11 wireless protocols.By integrated " 802.11 PAL " (agreement adaptation layer), the data transmission rate of bluetooth 3.0 has been brought up to about 24Mbps (can call 802.11 WI-FI and be used to realize high speed data transfer in needs)., be the octuple of bluetooth 2.0, can easily be used for video tape recorder to high definition TV, PC to PMP, UMPC to the data between the printer and transmit.
The power consumption aspect, transmitting mass data can consume more multipotency naturally at a high speed by bluetooth 3.0, but owing to introduced enhancing power supply control (EPC) mechanism, is aided with 802.11 again, actual idle power consumption can obviously reduce, and the standby power consumption problem of bluetooth equipment is expected to tentatively be solved.In fact, the low-power consumption version of new criteria is also being set about formulating by bluetooth alliance.
In addition, new standard also possesses universal testing method (GTM) and does not have two technology of the data of connection (UCD) with One-to-All Broadcast, and has comprised that one group of HCI instruction is to obtain key length.
It is said that the PC that has been equipped with bluetooth 2.1 modules can also support bluetooth 3.0 by bluetooth 2.1 equipment by firmware updating in theory.Allied member has begun research and development bluetooth 3.0 solutions for equipment manufacturers.
Bluetooth 4.0 technical specifications
(on April 22nd, 2010)
Bluetooth sig (SIG) Tuesday (on April 20th, 2010) expression, bluetooth 4.0 technical specifications are basic forming, estimates to issue the second quarter in this year.
Bluetooth 4.0 comprises three sub-standards, i.e. traditional bluetooth technology, high speed bluetooth and new bluetooth Low-power Technology.The improvements of bluetooth 4.0 are mainly reflected in three aspects, on battery life, the energy-conservation and device category.
In addition, the effective propagation path of bluetooth 4.0 also promotes to some extent.Current, the effective propagation path of bluetooth is 10 meters (about 30 feet), and the effective propagation path of bluetooth 4.0 can reach 60 meters (about 200 feet).
SIG represents that bluetooth 4.0 complete specifications will be finished June 30 this year, and is expected to listing at the beginning of the end of the year or 2011 based on the equipment of bluetooth 4.0.
Wireless broadband network develops rapidly at present, and family and enterprises hundreds of millions of in the global range use the Wi-Fi technology, and the consumer also is accustomed to using the Wi-Fi technology in computing equipment, home entertainment system and mobile phone.The ABI Research of market survey company reports demonstration, and only 2009 1 year, the Wi-Fi equipment shipment amount on the market just reached 5.8 hundred million.
Be illustrated in figure 1 as the application of prior art Wi-Fi WAP (wireless access point).
WAP (wireless access point) is as the basic product of WLAN, play the function served as bridge that connects wireless network and cable network, wireless subscriber terminal (computer, mobile phone, PDA etc.) is associated by the wireless channel and the WAP (wireless access point) (AP) of aerial 802.11 standards, AP user's air information be converted to close symbol wired internet network agreement message transmission in the wired internet network, and the information of wired internet network is given the user message transmission by opposite process.
Disclose a kind of wireless access device, system and method in the invention of Chinese patent application 200710164001.X, but this invention only provides the Wi-Fi terminal to insert, function singleness, access capacity is little.
Two kinds of networking modes are arranged: a kind of PC(of being computer) to the PC networking in the bluetooth constructing local network; Another kind is the networking of PC to Bluetooth accessing point.
, can allow two computers share the internet with Bluetooth adapter and be connected into the PC networking mode for PC.A computer expert wherein crosses network interface card and connects access device such as ADSL MODEM and can visit Internet, loads onto bluetooth USB adapter, and it is used as the acting server that an Internet shares.Other computer of being furnished with bluetooth USB adapter is used as client can also can share other resource by its visit Internet.This scheme also is Bluetooth technology scheme the most representative and that the most generally adopt in family's networking plan.
To the networking of PC to Bluetooth accessing point, Bluetooth accessing point (Bluetooth gateway) links to each other with broadband access devices such as ADSL MODEM by RJ45.Other wants the computer of access network that Bluetooth adapter all is installed, and a Bluetooth gateway can connect 7 such computers at most.The function of the Bluetooth accessing point here is just as the Internet acting server in the last scheme.The networking of the similar Wi-Fi WAP (wireless access point) of networking topology
The equipment that Bluetooth gateway inserts is less relatively, and Bluetooth terminals such as mobile phone, PDA are inserted relatively difficulty of internet.
Along with constantly popularizing of wireless technology, bluetooth applications is also increasingly extensive.According to the up-to-date expectation of ABI Research, 2014, the Bluetooth chip shipment amount will reach 2,000,000,000, and the Wi-Fi chip that is used on notebook, mobile phone and the miscellaneous equipment has 1,500,000,000.Bluetooth is mainly used on the point-to-point communication, in point-to-multipoint and relatively weaker on interconnected with the Internet.And the rapid increase of Wi-Fi terminal, the aerial data capacity of Wi-Fi increases day by day, causes the user to block up easily.
Summary of the invention
First goal of the invention of the present invention is to provide a kind of wireless access device, to solve in the prior art, fails to realize that Wi-Fi and blue teeth wireless insert the technical problem that merges.
In order to realize first goal of the invention of the present invention, adopt following technical scheme:
A kind of wireless access device comprises wireless local area network access module, blue teeth wireless access module, radio-frequency module and common data processing module:
Wireless local area network access module is connected with radio-frequency module respectively with the blue teeth wireless access module;
Wireless local area network access module is connected with the common data processing module respectively with the blue teeth wireless access module.
As a kind of preferred version, described device also comprises the wired access module that is connected with the common data processing module, and described wired access module is used for inserting the Internet by wire transmission.
As a kind of preferred version, described wireless local area network access module comprises interconnective wireless lan signal transceiver module and wireless lan signal processing module:
Described wireless lan signal transceiver module comprises reflector, frequency synthesizer, receiver and the controller that connects successively;
Described wireless lan signal processing module comprises D/A, media control and holder, A/D converter and the baseband signal processor that connects successively;
Described receiver is connected with A/D converter, inserts baseband processor by A/D converter;
Baseband processor is connected with media control and holder, obtains data from media control and holder;
Reflector is connected with D/A, and baseband processor is launched from reflector by D/A after obtaining data from media control and holder.
As a kind of preferred version, described blue teeth wireless access module comprises interconnective Bluetooth signal transceiver module and Bluetooth signal processing module:
Described Bluetooth signal transceiver module comprises reflector, frequency synthesizer, receiver and the controller that connects successively;
Described Bluetooth signal processing module comprises baseband signal processor, encoder, decoder and D and D/A converter, and described baseband signal processor is connected with encoder, decoder and D and D/A converter respectively.
As a kind of preferred version, described common data processing module comprises central processing unit and holder, and wireless local area network access module links to each other with central processing unit respectively with the blue teeth wireless access module, and central processing unit connects holder.
As a kind of preferred version, described radio-frequency module comprises antenna, radio-frequency filter and the radio-frequency (RF) switch that connects successively, and described radio-frequency (RF) switch is connected respectively with wireless local area network access module and bluetooth access module, and described antenna is a single antenna, perhaps is many antennas.
As further preferred version, described wired access module includes the gauze mouth, and wired network interface is the RJ45 interface, perhaps is optical fiber interface.
Second goal of the invention of the present invention is to provide a kind of radio switch-in method, to use the wireless access device that first goal of the invention of the present invention is provided.
In order to realize second goal of the invention of the present invention, the technical scheme of employing is as follows:
A kind of radio switch-in method, described method comprises:
Carry out following steps for downlink data:
(81) the on-air radio signal receives by antenna, through delivering to radio-frequency (RF) switch after the radio-frequency filter filtering;
(82) radio-frequency (RF) switch is signal guide wireless local area network access module and blue teeth wireless access module;
(83) wireless local area network access module and blue teeth wireless access module are sampled and demodulation to signal respectively, distinguish the type of signal, for wireless lan signal, and execution in step (84), for Bluetooth signal, execution in step (85);
(84) after wireless local area network access module is carried out base band signal process to wireless lan signal, signal is delivered to central processing unit carry out Digital Signal Processing, the wired network oral instructions by wired access module at last are passed in the wired internet;
The blue teeth wireless access module is to the direct zero clearing of wireless lan signal;
(85) after the blue teeth wireless access module is carried out signal processing to Bluetooth signal, send into that central processing unit is decoded and protocol conversion, the wired network oral instructions by wired access module at last are passed in the wired internet;
Wireless local area network access module is to the direct zero clearing of Bluetooth signal.
As a kind of preferred version, described method also comprises:
Carry out following steps for upstream data:
(91) send into central processing unit after the digital signal of wired network interface reception wired internet transmission;
(92) after central processing unit is judged the type of digital signal,, digital signal is converted to the baseband signal of corresponding agreement according to the protocol conversion standard of unlike signal:
If wireless lan signal, central processing unit is transmitted in the air by antenna after signal is sent into wireless local area network access module and carried out Base-Band Processing, modulation and D/A switch;
If Bluetooth signal, central processing unit is sent into the blue teeth wireless access module to signal, carry out Base-Band Processing, modulation and D/A switch after, be transmitted in the air by antenna.
Compared with prior art, the invention has the beneficial effects as follows: the comprehensive wireless that merges bluetooth and Wi-Fi WLAN (wireless local area network) inserts, the plurality of access modes of realization WLAN is selected flexibly, two kinds of access technologies are replenished mutually, for various wireless terminals provide easier network service, reduce the crowded probability of spatial data, the multiple radio function of performance terminal, alleviate the crowded pressure of bandwidth and data capacity, for many information networks fusions in future provide the basis.
Description of drawings
Fig. 1 is existing wireless access system schematic diagram;
Fig. 2 is a theory structure schematic diagram of the present invention;
Fig. 3 is the specific embodiment of the present invention schematic diagram;
Fig. 4 is the workflow diagram of the embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Theory structure of the present invention as shown in Figure 2, comprise wireless local area network access module, blue teeth wireless access module, radio-frequency module and common data processing module, wireless local area network access module is connected with radio-frequency module respectively with the blue teeth wireless access module, and wireless local area network access module is connected with the common data processing module respectively with the blue teeth wireless access module.WLAN (wireless local area network) is specially the Wi-Fi WLAN (wireless local area network).The present invention also comprises the wired access module that is connected with the common data processing module, is used for inserting the Internet by wire transmission, and wired access module includes the gauze mouth, and wired network interface is the RJ45 interface, perhaps is optical fiber interface.
Wireless local area network access module comprises interconnective Wi-Fi signal transmitting and receiving module and Wi-Fi signal processing module, Wi-Fi signal transmitting and receiving module comprises reflector, frequency synthesizer, receiver and the controller that connects successively, and the Wi-Fi signal processing module comprises D/A, media control and holder, A/D converter and the baseband signal processor that connects successively.Receiver is connected with A/D converter, insert baseband processor by A/D converter, baseband processor is connected with media control and holder, obtain data from media control and holder, reflector is connected with D/A, baseband processor is launched from reflector by D/A after obtaining data from media control and holder.
The blue teeth wireless access module comprises interconnective Bluetooth signal transceiver module and Bluetooth signal processing module, the Bluetooth signal transceiver module comprises reflector, frequency synthesizer, receiver and the controller that connects successively, the Bluetooth signal processing module comprises baseband signal processor, encoder, decoder and D and D/A converter, and baseband signal processor is connected with encoder, decoder and D and D/A converter respectively.
The common data processing module comprises central processing unit and holder, and wireless local area network access module links to each other with central processing unit respectively with the blue teeth wireless access module, and central processing unit connects holder.Radio-frequency module comprises antenna, radio-frequency filter and the radio-frequency (RF) switch that connects successively, and described radio-frequency (RF) switch is connected respectively with wireless local area network access module and bluetooth access module, and described antenna is a single antenna, perhaps is many antennas.
The radio frequency duplex mode of Wi-Fi standard agreement and bluetooth standard protocol regulation all is a time division multiplexing mode, and the frequency of employing all comprises the 2.4GHz ISM band, 2.4 ~ 2.483GHz, and when adopting similar frequency bands, just can common antenna.When Wi-Fi adopts different ISM band with bluetooth, just adopt different antennas to receive and dispatch respectively, radio-frequency (RF) switch is used to control the flow direction of uplink/downlink signals.79 1MHz interchannel frequency hoppings of bluetooth equispaced in the 2.4GHz ISM band.Wi-Fi always has 13 different channels in the 2.4GHz ISM band, each channel 5MHz, 3 of non-overlapping channels, peak transfer rate 54Mb/s.
For fear of the phase mutual interference between two kinds of signals, use AFH(AFH) technology is handled in conjunction with the AIM(adaptive disturbance) handle, the AFH(AFH) technology, can avoid this class to disturb automatically, AFH can make linking bluetooth utilize the frequency hopping order to avoid the channel that there is interference in those selectively.So, bluetooth can change the frequency of oneself automatically, to avoid a Wi-Fi channel in the use, it can make their operating frequency of Wi-Fi network-adaptive, with to anti-interference, the AIM antenna adopts beam-forming method, sets up a kind of directional antenna that arranged in certain direction very strong zero point, system is changed, to find out the minimum form of disturbing between omnidirectional antenna and two rightabout directional antennas.
Because WI-FI and bluetooth all adopt the 2.4GHz frequency range, the reflector of WI-FI and bluetooth transmitters adopt the shared power amplifier module of form of synthesized power amplifier to launch, can save cost like this), if can adopt independent power amplifier form but have in radio-frequency (RF) index under the situation of particular requirement, bluetooth is launched with different power amplifiers respectively with WI-FI, receiving terminal in like manner also adopts synthetic form, and a shared low noise amplifier receives.The reflector of WI-FI and bluetooth transmitters frequency synthesizer can shared local vibration sources, adopt different phase-locked loops and numerical frequency register.The baseband portion of WI-FI and bluetooth is all at same FPGA(programmable logic array) adopt under the hardware platform different software modules to realize.The control section of WI-FI and bluetooth is also handled respectively on same CPU hardware platform.
The flow direction and the processing procedure of signal are as follows:
Downstream signal:
After receiving by the AIM antenna, the on-air radio signal, delivers to radio-frequency (RF) switch through radio-frequency filter filtering.Radio-frequency (RF) switch is the low noise amplifier of signal guide receiving terminal, frequency conversion is that intermediate-freuqncy signal is convenient to be converted to digital signal after the A/D sampling after the filtering, digital signal is being tried demodulation respectively through Wi-Fi radio access module among the FPGA and blue teeth wireless access module two fatware modules, determine WI-FI signal or Bluetooth signal, distinguish the type of signal, for the Wi-Fi signal, the Wi-Fi radio access module just carries out follow-up media visit, base band signal process work, at last signal is delivered to the CPU(central processing unit) carry out protocol conversion, Digital Signal Processing such as authentication, be transferred in the wired internet by network interface again, and the blue teeth wireless access module is not done subsequent treatment to the direct zero clearing of Wi-Fi signal.In like manner, for Bluetooth signal, the blue teeth wireless access module to signal carry out also sending into after the signal processing CPU decodes and Digital Signal Processing such as protocol conversion after be transferred in the wired internet by network interface, and the Wi-Fi radio access module is not done subsequent treatment to the direct zero clearing of Bluetooth signal.
Upward signal:
Network interface is sent among the CPU after receiving the digital signal of wired internet transmission, and CPU is by to the reading and judge of digital signal, determines after the type of digital signal digital signal to be converted to the baseband signal of corresponding agreement according to the protocol conversion standard of unlike signal.Base band signal process is carried out in FPGA, the processing module that different signals is corresponding different, if Wi-Fi signal, just signal being sent into the Wi-Fi radio access module carries out being transformed to analog intermediate frequency signal after Base-Band Processing (Digital Up Convert), modulation and the digital-to-analogue conversion, be the intermediate-freuqncy signal frequency conversion radiofrequency signal then, through being transmitted in the air by the AIM antenna after the power amplification filtering.In like manner, if Bluetooth signal, CPU just sends into the blue teeth wireless access module to signal, carries out being transformed to analog intermediate frequency signal after Base-Band Processing, modulation and the digital-to-analogue conversion, be the intermediate-freuqncy signal frequency conversion radiofrequency signal then, through being transmitted in the air by the AIM antenna after the power amplification filtering.
The specific embodiment of the present invention as shown in Figure 3.
The flow direction and the processing procedure of signal are as follows:
Upward signal: digital signal is handled in digital baseband part, through Digital Up Convert signal frequency from low frequency to high frequency conversion, carry out D/A switch again digital signal transition is become analog signal, behind intermediate-frequency filter, in analogue quadrature moducator, carry out orthogonal transform, intermediate-freuqncy signal is become radiofrequency signal, radiofrequency signal by radio-frequency filter and power amplifier after, launch by the radio-frequency transmissions reception antenna.
Downstream signal: the signal that the radio-frequency transmissions reception antenna receives, by radio-frequency filter and low noise amplifier, in analog quadrature demodulator, carry out orthogonal transform, radiofrequency signal is become intermediate-freuqncy signal, intermediate-freuqncy signal is carried out mould/number conversion analog-signal transitions is become digital signal by behind the intermediate-frequency filter, digital signal through Digital Down Convert signal frequency from high frequency to low frequency transform, after digital baseband part is handled, be transferred to the Internet at last from network interface.
Wherein:
The radio-frequency transmissions reception antenna can be many antennas, also can be single antenna.
Low noise amplifier is positioned at the receiving front-end of equipment, can increase the receiving sensitivity of equipment, and generally selecting noise factor for use is device below 0.7.Power amplifier, it is terminal to be positioned at the equipment emission, can increase the transmitting power of equipment, increases signal cover, can regulate its watt level according to different applied environments, is generally 0.5W.
Radio-frequency filter is positioned at front end of emission and receiving front-end, can guarantee the pure of useful signal removing interference signal, generally adopts SAW (Surface Acoustic Wave) filter to realize.Intermediate-frequency filter is positioned at filtering before the filtering and transmitting terminal frequency conversion after the frequency conversion of receiving terminal, generally adopts SAW (Surface Acoustic Wave) filter to realize.
Analog quadrature demodulator is positioned at receiving terminal, and major function is that to carry out orthogonal transform (Hilbert conversion) be the radiofrequency signal frequency conversion intermediate-freuqncy signal.Analogue quadrature moducator is positioned at transmitting terminal, and major function is that orthogonal transform is the intermediate-freuqncy signal frequency conversion radiofrequency signal.
Phase-locked loop, major function are that local oscillation signal is kept stable.Voltage controlled oscillator, major function are to produce local oscillation signal, for realizing that signal frequency conversion provides reference source.
A/D converter, major function are that analog signal is transformed to digital signal.D/A, major function are that digital signal is converted to analog signal.
Digital Down Convert, major function is carried out signal frequency from high frequency to low frequency transform at numeric field.Digital Up Convert, major function is carried out signal frequency from low frequency to high frequency conversion at numeric field.
Digital BB is a digital baseband part, this part function mainly is to realize the various algorithms of signal processing and satisfy specific functional requirement, and carry out protocol conversion and the control of each several part function according to bluetooth or Wi-Fi agreement and 802.3 agreements, mainly realize by network C PU.
Network interface mainly is to realize being connected with wired ethernet network, can be the RJ45 interface, also can be optical fiber interface.Power supply is mainly used in power supply.
The above only is a preferred implementation of the present invention; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a wireless access device is characterized in that, comprises wireless local area network access module, blue teeth wireless access module, radio-frequency module and common data processing module:
Wireless local area network access module is connected with radio-frequency module respectively with the blue teeth wireless access module;
Wireless local area network access module is connected with the common data processing module respectively with the blue teeth wireless access module.
2. wireless access device according to claim 1 is characterized in that, described device also comprises the wired access module that is connected with the common data processing module, and described wired access module is used for inserting the Internet by wire transmission.
3. wireless access device according to claim 1 is characterized in that, described wireless local area network access module comprises interconnective wireless lan signal transceiver module and wireless lan signal processing module:
Described wireless lan signal transceiver module comprises reflector, frequency synthesizer, receiver and the controller that connects successively;
Described wireless lan signal processing module comprises D/A, media control and holder, A/D converter and the baseband signal processor that connects successively;
Described receiver is connected with A/D converter, inserts baseband processor by A/D converter;
Baseband processor is connected with media control and holder, obtains data from media control and holder;
Reflector is connected with D/A, and baseband processor is launched from reflector by D/A after obtaining data from media control and holder.
4. wireless access device according to claim 1 is characterized in that, described blue teeth wireless access module comprises interconnective Bluetooth signal transceiver module and Bluetooth signal processing module:
Described Bluetooth signal transceiver module comprises reflector, frequency synthesizer, receiver and the controller that connects successively;
Described Bluetooth signal processing module comprises baseband signal processor, encoder, decoder and D and D/A converter, and described baseband signal processor is connected with encoder, decoder and D and D/A converter respectively.
5. wireless access device according to claim 1, it is characterized in that, described common data processing module comprises central processing unit and holder, and wireless local area network access module links to each other with central processing unit respectively with the blue teeth wireless access module, and central processing unit connects holder.
6. wireless access device according to claim 1, it is characterized in that, described radio-frequency module comprises antenna, radio-frequency filter and the radio-frequency (RF) switch that connects successively, described radio-frequency (RF) switch is connected respectively with wireless local area network access module and bluetooth access module, described antenna is a single antenna, perhaps is many antennas.
7. wireless access device according to claim 2 is characterized in that, described wired access module includes the gauze mouth, and wired network interface is the RJ45 interface, perhaps is optical fiber interface.
8. a radio switch-in method is characterized in that, described method comprises:
Carry out following steps for downlink data:
(81) the on-air radio signal receives by antenna, through delivering to radio-frequency (RF) switch after the radio-frequency filter filtering;
(82) radio-frequency (RF) switch is signal guide wireless local area network access module and blue teeth wireless access module;
(83) wireless local area network access module and blue teeth wireless access module are sampled and demodulation to signal respectively, distinguish the type of signal, for wireless lan signal, and execution in step (84), for Bluetooth signal, execution in step (85);
(84) after wireless local area network access module is carried out base band signal process to wireless lan signal, signal is delivered to central processing unit carry out Digital Signal Processing, the wired network oral instructions by wired access module at last are passed in the wired internet;
The blue teeth wireless access module is to the direct zero clearing of wireless lan signal;
(85) after the blue teeth wireless access module is carried out signal processing to Bluetooth signal, send into that central processing unit is decoded and protocol conversion, the wired network oral instructions by wired access module at last are passed in the wired internet;
Wireless local area network access module is to the direct zero clearing of Bluetooth signal.
9. radio switch-in method according to claim 8 is characterized in that, described method also comprises:
Carry out following steps for upstream data:
(91) send into central processing unit after the digital signal of wired network interface reception wired internet transmission;
(92) after central processing unit is judged the type of digital signal,, digital signal is converted to the baseband signal of corresponding agreement according to the protocol conversion standard of unlike signal:
If wireless lan signal, central processing unit is transmitted in the air by antenna after signal is sent into wireless local area network access module and carried out Base-Band Processing, modulation and D/A switch;
If Bluetooth signal, central processing unit is sent into the blue teeth wireless access module to signal, carry out Base-Band Processing, modulation and D/A switch after, be transmitted in the air by antenna.
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201134A (en) * | 2011-04-15 | 2011-09-28 | 陕西科技大学 | Hotel Bluetooth control device and method |
| CN102364979A (en) * | 2011-10-26 | 2012-02-29 | 中兴通讯股份有限公司 | Method and system for connecting mobile terminal into network |
| CN102723962A (en) * | 2012-05-17 | 2012-10-10 | 邹伟 | Bluetooth to 433M/315M wireless communication interface module |
| CN102723963A (en) * | 2012-06-01 | 2012-10-10 | 邹伟 | WIFI-to-433 M/315 M wireless communication interface module |
| CN102904600A (en) * | 2011-07-29 | 2013-01-30 | 瑞昱半导体股份有限公司 | Communicator capable of simultaneously performing wireless network transmission and Bluetooth transmission |
| CN103023525A (en) * | 2012-12-09 | 2013-04-03 | 邹伟 | Method for converting Internet/Bluetooth/ZigBee/wireless fidelity (Wi-Fi) into radio frequency (RF) |
| CN103117768A (en) * | 2013-01-25 | 2013-05-22 | 中国科学院微电子研究所 | Wireless transceiving device |
| CN103260259A (en) * | 2013-05-15 | 2013-08-21 | 江苏奇异点网络有限公司 | Method for connecting mobile terminal to network through Bluetooth |
| CN103369711A (en) * | 2012-03-31 | 2013-10-23 | 华为终端有限公司 | Communication connection establishment method and terminal device |
| CN103379670A (en) * | 2012-04-20 | 2013-10-30 | 中兴通讯股份有限公司 | Multi-mode terminal |
| CN104009779A (en) * | 2013-02-21 | 2014-08-27 | 腾讯科技（深圳）有限公司 | On-line method, on-line client and on-line system |
| CN103856993B (en) * | 2012-12-06 | 2016-08-31 | 腾讯科技（深圳）有限公司 | A kind of wireless communications method and device |
| WO2016176891A1 (en) * | 2015-05-05 | 2016-11-10 | 中兴通讯股份有限公司 | Smart home control gateway |
| CN108172242A (en) * | 2018-01-08 | 2018-06-15 | 深圳市芯中芯科技有限公司 | A kind of improved blue-tooth intelligence cloud speaker interactive voice end-point detecting method |
| CN108391277A (en) * | 2018-02-07 | 2018-08-10 | 广东欧珀移动通信有限公司 | Signal connection method, device, mobile terminal and computer readable storage medium |
| CN108668353A (en) * | 2017-03-28 | 2018-10-16 | 三星电子株式会社 | Electronic equipment and transmission power control method |
| CN109907746A (en) * | 2019-04-22 | 2019-06-21 | 深圳仙苗科技有限公司 | A kind of healthy bracelet and its application method acquiring ultraviolet light and electrocardiosignal |
| CN115225112A (en) * | 2022-08-15 | 2022-10-21 | 维沃移动通信有限公司 | Radio frequency circuit, bluetooth scanning method and device and electronic equipment |
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| CN102201134A (en) * | 2011-04-15 | 2011-09-28 | 陕西科技大学 | Hotel Bluetooth control device and method |
| CN102904600A (en) * | 2011-07-29 | 2013-01-30 | 瑞昱半导体股份有限公司 | Communicator capable of simultaneously performing wireless network transmission and Bluetooth transmission |
| CN102364979A (en) * | 2011-10-26 | 2012-02-29 | 中兴通讯股份有限公司 | Method and system for connecting mobile terminal into network |
| CN103369711A (en) * | 2012-03-31 | 2013-10-23 | 华为终端有限公司 | Communication connection establishment method and terminal device |
| CN103379670A (en) * | 2012-04-20 | 2013-10-30 | 中兴通讯股份有限公司 | Multi-mode terminal |
| CN102723962A (en) * | 2012-05-17 | 2012-10-10 | 邹伟 | Bluetooth to 433M/315M wireless communication interface module |
| CN102723963A (en) * | 2012-06-01 | 2012-10-10 | 邹伟 | WIFI-to-433 M/315 M wireless communication interface module |
| US10172138B2 (en) | 2012-12-06 | 2019-01-01 | Tencent Technology (Shenzhen) Company Limited | Method, apparatus, and storage medium for wireless communication |
| CN103856993B (en) * | 2012-12-06 | 2016-08-31 | 腾讯科技（深圳）有限公司 | A kind of wireless communications method and device |
| CN103023525A (en) * | 2012-12-09 | 2013-04-03 | 邹伟 | Method for converting Internet/Bluetooth/ZigBee/wireless fidelity (Wi-Fi) into radio frequency (RF) |
| CN103117768B (en) * | 2013-01-25 | 2015-09-23 | 中国科学院微电子研究所 | A kind of wireless transmitter |
| CN103117768A (en) * | 2013-01-25 | 2013-05-22 | 中国科学院微电子研究所 | Wireless transceiving device |
| CN104009779A (en) * | 2013-02-21 | 2014-08-27 | 腾讯科技（深圳）有限公司 | On-line method, on-line client and on-line system |
| CN104009779B (en) * | 2013-02-21 | 2018-01-09 | 腾讯科技（深圳）有限公司 | Connecting method, client and system |
| WO2014127651A1 (en) * | 2013-02-21 | 2014-08-28 | Tencent Technology (Shenzhen) Company Limited | Methods and systems for connecting multiple devices online |
| CN103260259A (en) * | 2013-05-15 | 2013-08-21 | 江苏奇异点网络有限公司 | Method for connecting mobile terminal to network through Bluetooth |
| WO2016176891A1 (en) * | 2015-05-05 | 2016-11-10 | 中兴通讯股份有限公司 | Smart home control gateway |
| CN108668353A (en) * | 2017-03-28 | 2018-10-16 | 三星电子株式会社 | Electronic equipment and transmission power control method |
| CN108172242B (en) * | 2018-01-08 | 2021-06-01 | 深圳市芯中芯科技有限公司 | Improved Bluetooth intelligent cloud sound box voice interaction endpoint detection method |
| CN108172242A (en) * | 2018-01-08 | 2018-06-15 | 深圳市芯中芯科技有限公司 | A kind of improved blue-tooth intelligence cloud speaker interactive voice end-point detecting method |
| CN108391277A (en) * | 2018-02-07 | 2018-08-10 | 广东欧珀移动通信有限公司 | Signal connection method, device, mobile terminal and computer readable storage medium |
| CN108391277B (en) * | 2018-02-07 | 2021-05-11 | Oppo广东移动通信有限公司 | Signal connection method, device, mobile terminal and computer readable storage medium |
| CN109907746A (en) * | 2019-04-22 | 2019-06-21 | 深圳仙苗科技有限公司 | A kind of healthy bracelet and its application method acquiring ultraviolet light and electrocardiosignal |
| CN115225112A (en) * | 2022-08-15 | 2022-10-21 | 维沃移动通信有限公司 | Radio frequency circuit, bluetooth scanning method and device and electronic equipment |
| CN115225112B (en) * | 2022-08-15 | 2024-03-29 | 维沃移动通信有限公司 | Radio frequency circuit, bluetooth scanning method and device and electronic equipment |
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