CN1199398C - Access device with different wireless network standards - Google Patents
Access device with different wireless network standards Download PDFInfo
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- CN1199398C CN1199398C CN 02105556 CN02105556A CN1199398C CN 1199398 C CN1199398 C CN 1199398C CN 02105556 CN02105556 CN 02105556 CN 02105556 A CN02105556 A CN 02105556A CN 1199398 C CN1199398 C CN 1199398C
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- access device
- wireless network
- slot
- transport module
- central processing
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Abstract
The present invention relates to an access device with different wireless network standards, which is used for constructing a wireless network with a system trunk and a plurality of dynamic terminals, wherein all the dynamic terminals are respectively provided with a first transmission standard and a second transmission standard. The access device comprises a central processing unit, an Ethernet network port, a first slot, a second slot and a double-bandwidth antenna, wherein the central processing unit is used for controlling and operating the data of the wireless network; the Ethernet network port is connected to the system trunk to enable the central processing unit to receive or deliver a data package via the system trunk; the first slot is used for connecting a first wireless transmission module with the central processing unit so as to provide the first transmission standard; the second slot is used for connecting a second wireless transmission module with the central processing unit so as to provide the second transmission standard; the double-bandwidth antenna is used for providing different operation bandwidths for the first transmission module and the second wireless transmission module, and is connected with the dynamic terminals with the first transmission standard and the second transmission standard.
Description
Technical field
The present invention relates to a kind of access device that is used for radio area network, especially a kind of access device that is used for radio area network can connect mutually with the portable terminal with different transmission standards.
Background technology
In recent years, Internet network (Internet) is popularized rapidly and is made the Local Area Network that is established in office, the family increase sharply.Since the progress of digital radio transmission technology, and the not convenient property of cable installation, by Radio Transmission Technology construction Local Area Network LAN, the demand of the LAN of radio area network transmission technology thereby increase significantly.
Radio area network (Wireless Local Area Network; Wireless LAN) existing suitable development, and be widely used in now in office, retail shop and the large scale industry facility, such as warehouse or factory.These radio area networks provide the transmission of data between computer, printer, server and other devices, and no longer need trouble and the cable of costliness and the installation steps of splicing ear.
For radio area network LAN, existing typical technology is IEEE802.11, and it is by Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers; IEEE) standard of being worked out.This standardized technology is in open systems architecture pattern (OpenSystem Interconnection model; OSI model) under, provide the sublayer that connects by physical layer to data, or medium key-course (Media Access Control in succession; MAC) definition.The specification that it comprises can replace Ethernet (Ethernet) or wired Local Area Network LAN transmission channel, and the function of roaming also is provided, be one with wireless relevant additional functionality.
Basically wireless Local Area Network LAN is converted on the carrier wave for general LAN agreement.The IEEE802.11 of radio area network LAN is the extension of Local Area Network LAN Ethernet, and modular agreement is the IEEE802.3 Ethernet.In fact, had three IEEE802.11 standards at present and comprised Frequency Hopping Spread Spectrum/FHSS (Frequency Hopping Spread Spectrum; FHSS), direct sequence exhibition frequency (DSSS:Direct Sequence Spread Spectrum) and infrared technology.
The radio area network lan product of use ieee standard depends on the specification of IEEE802.11 and IEEE802.11b usually.IEEE802.11b is former 802.11 extension, and has higher speed, and frequency range operates in 2.4GHz, is rated for 5.5 to 11Mbps message transmission rate.The next generation of this standard also is IEEE802.11a, also is called high-performance radio area network Hiper LAN2, will operate in 5GHz with a new frequency range, and reach the more high data rate of 54Mbps.With respect to the exhibition frequency technology of using at blue bud (Bluetooth), IEEE802.11 and IEEE802.11b, it uses multiplexing (the Orthogonal FrequencyDivision Multiplexing of orthogonal frequency division; OFDM).This IEEE802.11a system still can with general Ethernet coupling, and without any need for switch selecting device.The standard of this kind IEEE802.11x is configured as personal computer memory card PC card (PC card or be called pcmcia card) usually.
If regional network LAN supports mobile radio terminal (mobile terminal), such as having the anti-notebook computer of IEEE802.11x function or other small-sized, portable radio data communication product, this Local Area Network will also need to be connected to one or more access device (access point; Also be called base station (base station)).Each access device links to this LAN and has at least one radio communication, and itself and this portable terminal forms wireless telecommunications.
Yet the present access device of prior art only can connect the mobile radio terminal of particular transmission standard.In other words, for the mobile radio terminal with different transmission standards, must provide different access devices, this mobile radio terminal that the beginning is able to have different transmission standards is connected to system's trunk individually.
Therefore, just having to provide a kind of access device, can connect mutually with the mobile radio terminal with various criterion, and then set up wireless Local Area Network easily.
Summary of the invention
Main purpose of the present invention provides a kind of access device, and it can be connect mutually with the mobile radio terminal with different transmission standards, only by single access device, is just connect the mobile radio terminal with different transmission standards.
For reaching above-mentioned purpose, it is used for construction one wireless network to the invention provides a kind of access device (Access Point) with different wireless network standards, this wireless network has system's trunk and a plurality of portable terminal (mobile terminal), and this portable terminal has first and second transmission standard respectively.This access device comprises a central processing unit, an Ethernet port, one first slot, one second slot and a pair of frequency range antenna.Control and the operation of this central processing unit in order to carry out data in this wireless network.This Ethernet port (Ethernet Port) is connected to this system's trunk, so that this central processing unit can receive or send packet (data packet) via this system's trunk.This first slot is in order to be connected first wireless transport module (wirelesstransmission module), in order to this first transmission standard to be provided with this central processing unit.This second slot is in order to be connected one second wireless transport module, so that this second transmission standard to be provided with this central processing unit.This double frequency Wide antenna connects with this portable terminal with this first and second transmission standard mutually in order to provide this first and second wireless transport module different running frequency ranges.
As previously mentioned, (Access Point) has two slots according to this access device of the present invention, such as two miniature peripheral parts interconnected PCI slots, available for two wireless transport modules with various criterion, and can be in the double frequency Wide antenna of different frequency range runnings.Therefore, because this access device of the present invention makes the portable terminal with different running frequency ranges and standard can link to this access device, and then is connected with a Local Area Network, thus the radio area network of the two standards of formation.
Description of drawings
Fig. 1 is the system block diagrams according to one of preferred embodiment of the present invention access device (Access Point).
The figure number explanation
10 have the access device of different wireless network standards
12 central processing units, 14 random access memories
16 read-only memories, 18 power supplys
20 Ethernet ports, 22 first slots
24 second slots, 26 double frequency Wide antennas
28 peripheral component interconnect (pci) buses
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with drawings and Examples.
Though the present invention can show as multi-form embodiment, but shown in the accompanying drawing and in the preferred embodiment of the present invention that is illustrated as hereinafter, and please understand person disclosed herein and consider and be example of the present invention, and be not that intention is in order to be limited to the present invention in diagram and/or the described specific embodiment.
Now please refer to Fig. 1, its demonstration has the system block diagrams of the access device (Access Point) 10 of different wireless network standards according to one of preferred embodiment of the present invention.This access device 10 comprises that a power supply 18 is in order to supply with this access device 10 power supplys, and one central processing unit 12 in order to a read-only memory (ROM) 16 and a random access memory (RAM) 14 actings in conjunction, to carry out various control and operating function hereinafter described.
This access device 10 has a peripheral parts interconnected (Peripheral ComponentInterconnect in addition; PCI) bus 28 (hereinafter to be referred as pci bus 28).This center processor 12 is connected with an Ethernet port (Ethernet Port) 20 by this pci bus 28.This Ethernet port (Ethernet Port) 20 is connected to system's trunk (not shown) of a Radio Network System, as Local Area Network (LAN) etc., make this central processing unit 12 to receive or to send packet (datapacket) thus via system's trunk of this Radio Network System.
This pci bus 28 is connected with one first slot and one second slot 22,24 in addition.This first and second slot 22,24 is also used respectively for first, second wireless transport module (wirelesstransmission module) (not shown) and is plugged together, this first, second wireless transport module has the standard of different IEEE802.11x, such as IEEE802.11, IEEE802.11a or IEEE802.11b, in order to connect mutually with one of this Radio Network System portable terminal (mobileterminal).
As previously mentioned,, be respectively 5GHz and 2.4GHz because IEEE802.11a and IEEE802.11b operate in different frequency ranges, that is, the operation frequency range of IEEE802.11a at the operation frequency range of 5GHz, IEEE802.11b at 2.4GHz.Therefore, this first, second miniature PCI slot 22,24 needs to be connected with a pair of frequency range antenna 26.This double frequency Wide antenna 26 provides two running frequency ranges, and is corresponding with the transmission standard of this first, second wireless transport module of this first and second miniature PCI slot 22,24 respectively.
When first wireless transport module with IEEE802.11a standard inserted this first slot 22, this double frequency Wide antenna 26 can provide a 5GHz frequency range of running, with corresponding with this IEEE802.11a standard.Again, when second wireless transport module with IEEE802.11b standard inserted this second slot 24, this double frequency Wide antenna 26 also can provide a 2.4GHz frequency range of running, with corresponding with this IEEE802.11b standard.
Moreover, be preferably miniature PCI (Mini Peripheral Component Interconnect according to this first and second slot 22,24 of this access device 10 of the present invention; Mini PCI) slot plugs together for this first and second wireless transport module.This miniature peripheral parts interconnected PCI slot provides fast data to connect speed, and has smaller volume.Yet being skillful in present technique person can understand, and this miniature peripheral parts interconnected PCI slot is replaceable to be the slot of any pattern, store plug-in card, will reach peripheral parts interconnected PCI slot such as industrial standard slot, personal computer.
As previously mentioned, (Access Point) has at least two slots according to access device of the present invention, such as miniature peripheral parts interconnected PCI slot, and can be in order to the wireless transport module of various criterion to be provided simultaneously, and have the double frequency Wide antenna, in order to the running of different frequency range.Therefore, this access device can provide the radio area network system of different transmission standards simultaneously, can be connected to this access device so that have the portable terminal of different running frequency ranges and standard.In other words, when a plurality of portable terminals desires with different transmission standards connect mutually with a radio area network system, these a plurality of portable terminals can be connected to system's trunk by this access device according to the present invention, and do not need to provide other access device to different transmission standards.
Though aforesaid description and diagram have disclosed preferred embodiment of the present invention, must recognize various increase, revise and replace may be used in preferred embodiment of the present invention, and can not break away from the spirit and the scope of the principle of the invention that defines as claims.Be familiar with this operator and can know from experience the modification that the present invention may be used in a lot of forms, structure, layout, ratio, material, element and assembly.Therefore, this paper, should be regarded as in order to explanation the present invention in all viewpoints in embodiment that this disclosed, but not in order to restriction the present invention.Protection scope of the present invention should be defined by claims, and contains its legal equivalents, is not limited to previous description.
Claims (4)
1. access device with different wireless network standards, be used for a wireless network, it is characterized in that, this wireless network has system's trunk and a plurality of portable terminal, described a plurality of portable terminal has first and second transmission standard respectively, can be wirelessly connected to one first transport module and one second transport module respectively, this access device comprises:
One central processing unit is in order to control and the operation of carrying out data in this wireless network;
One pci bus connects this central processing unit;
One Ethernet port is connected to this system's trunk, and connects this pci bus, so that this central processing unit can receive or send packet via this system's trunk;
One first slot is used for one first wireless transport module to plug together, and is connected with this pci bus, and this first wireless transport module has this first transmission standard;
One second slot is used for one second wireless transport module to plug together, and is connected with this pci bus, and this second wireless transport module has this second transmission standard; And
A pair of frequency range antenna wirelessly transmits data with this portable terminal with this first and second transmission standard, and is connected with this first and second slot, to provide this first and second wireless transport module different running frequency ranges.
2. the access device with different wireless network standards according to claim 1 is characterized in that, this first and second slot is two miniature peripheral parts interconnected PCI slots.
3. the access device with different wireless network standards according to claim 1 is characterized in that the transmission standard that this first and second wireless transport module provided is selected from the standard of IEEE802.11, IEEE802.11a, IEEE802.11b.
4. the access device with different wireless network standards according to claim 1 is characterized in that, this double frequency Wide antenna has the running frequency range of 5GHz and 2.4GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02105556 CN1199398C (en) | 2002-04-16 | 2002-04-16 | Access device with different wireless network standards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02105556 CN1199398C (en) | 2002-04-16 | 2002-04-16 | Access device with different wireless network standards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1452349A CN1452349A (en) | 2003-10-29 |
| CN1199398C true CN1199398C (en) | 2005-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02105556 Expired - Fee Related CN1199398C (en) | 2002-04-16 | 2002-04-16 | Access device with different wireless network standards |
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| CN (1) | CN1199398C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2424545A (en) * | 2005-03-24 | 2006-09-27 | Orange Personal Comm Serv Ltd | Packet radio communications system where at least one ran is arranged to operate with a different communication standard than the other rans |
| CN102044736B (en) * | 2009-10-14 | 2015-05-20 | 中兴通讯股份有限公司 | Radio remote unit |
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2002
- 2002-04-16 CN CN 02105556 patent/CN1199398C/en not_active Expired - Fee Related
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| CN1452349A (en) | 2003-10-29 |
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