CN1787499B - Multifunctional wireless local area network access device and its information processing method - Google Patents

Abstract

The invention relates to a multifunctional wireless local area network access device and an information processing method, wherein the device comprises a time division multiplexing processing unit, a data processing unit and a programmable logic array. The invention converts the high-speed information of the time division multiplex processing unit and the data processing unit into a standard data packet format, and then transmits the standard data packet format to a wireless local area network module to send the information out. When receiving information, the received packet information is processed by the wireless local area network access device to form a standard data packet, and the standard data packet is processed by the programmable logic array, separated into data information or time division multiplexing information and then output by a corresponding hardware circuit. The wireless local area network access device can perform various monitoring and set various working parameters so as to achieve the aim of stable working of equipment.

Description

Multifunctional wireless local area network access device and its information processing method

technical field

The invention is a multifunctional wireless local area network access device and its information processing method, especially a data processing device applied in the technical fields of wireless local area network, data processing and time division multiplexing.

Background technique

Wireless local area network (WLAN) equipment is already a very mature communication product, mainly based on the transmission of data (data) information, and for the existing communication system based on time division multiplexing (TDM) technology, such as from broadband (such as T1/E1/DS1 leased line, etc.) voice time-division multiplex information can also be transmitted through a wireless local area network (WLAN) through appropriate information conversion processing.

Please refer to the processing architecture diagram of voice packets and data packets shown in FIG. 1. Time-division multiplex information transmission is usually used in voice communication. The known technology is to integrate and process voice packets and data packets through a user integrated access device 13, that is, the user The service of voice and data transmission can be used simultaneously through the user's integrated access device 13, such as using the telephone 11 to generate voice information, and the client's integrated access device 13 sends the information to a network converter 14; and the data generated by the computer 12 The packet is then sent to the client integrated access device 13, and then sent to the network switch 14, through which the voice and data packets are simultaneously carried. Afterwards, the voice packet is transmitted to the public telephone network (PSTN) 17 through a voice switch 15 , and the data packet is transmitted to the Internet (Internet) 18 through an Internet service provider (ISP) 16 .

If it is in the receiving state, the network converter 14 receives the voice and data information respectively by the voice switch 15 and the network service provider 16, and after conversion, separates the voice and data information for corresponding equipment to receive.

The known technology uses a voice network device and an Ethernet (Ethernet) device converter. If wireless transmission is required, the Ethernet is connected to the wireless local area network device. The interface between voice information and data information is not only expensive. , Inconvenient to use, and because of the inconsistency of the network transmission protocols, the product cannot provide complete management information, and more importantly, it is impossible to grasp the processing status of the time-division multiple-channel packet information and data information when it is transmitted together, so that it is impossible to fully grasp its time-division multiple-channel. Delivery quality.

In view of the defects of the above-mentioned known technologies, the present invention proposes a multi-functional wireless local area network access device designed on a single printed circuit board (PCB). , to ensure transmission quality, and the device has at least the following functions:

Baseband part (baseband):

a. I/O interface function: provide time-division multiplex packet and data interface.

b. Loop test function: including far/near end loop test (Far/Near End Loop Test) of TDM module and Ethernet.

c. Performance test: bit error rate (BER) test of TDM module and Ethernet network.

d. Packet calculation: Packet size detection in Ethernet to enhance transmission efficiency. RF part:

e. Manufactured according to IEEE802.11 related technical specifications.

Contents of the invention

The present invention is a multifunctional wireless local area network access device (Advanced WLAN Access Point) and its information processing method, wherein the access device includes: a time-division multiplex (TDM) processing unit to process time-division multiplex information from a broadband network ; a data processing unit to process data information; a programmable logic array (Field-Programmable GateArray, FPGA), so as to convert the high-speed information from the time-division multiplex processing unit and the data processing unit into a standard data packet format; a wireless local area network A network module converts packets into radio frequency information and sends them out; a processor monitors the operation of the entire device. In addition, in the process of receiving information, the packet information is also processed by the wireless local area network access device to form a standard data stream, and then output in a relative unit.

The step of transmitting information in the information processing method of the wireless local area network access device includes: receiving time division multiple information and data information; converting time division multiple information and data information into standard data packets; transmitting to a processor; forming radio frequency information; and transmitting the radio frequency information.

The steps of receiving information include: receiving radio frequency information; transmitting to a wireless local area network module, after filtering and amplifying, converting the radio frequency information into a standard data packet; and transmitting to a processor; The standard data packet is separated into time-division multiple information and data information; the time-division multiple information processing unit and the data information processing unit receive respective information; restore respective information; and receive respective restoration information with corresponding devices.

Description of drawings

Fig. 1 shows the processing frame diagram of known technology voice packet and data packet;

Fig. 2 is a structure diagram of an embodiment of a multifunctional wireless local area network access device of the present invention;

Fig. 3 is a flow chart of information transmission processing by the wireless local area network access device of the present invention;

FIG. 4 is a flow chart of receiving information by the wireless local area network access device of the present invention.

Explanation of symbols in the figure

11 phone

12 computers

13 Client integrated access device

14 network converter

15 voice switch

16 Network service provider

17 Public Telephone Network

18 Internet

20 multifunctional wireless local area network access device

22 data processing unit

24 time division multiplexing units

25 WLAN module

26 Programmable Logic Array

28 processors

261 First memory

281 Second memory

221 connection port

223 The first entity physical interface conversion device

225 entity transmission interface

241 line interface unit

243 Second entity physical interface conversion device

Detailed ways

The present invention is a multifunctional wireless local area network access device, which can simultaneously process time division multiplex (TDM) information and data (Data) information. The processing status when the packet information is sent together with the data information. Moreover, the device provided by the present invention is a multifunctional wireless local area network access device designed on a single printed circuit board (PCB), so as to simultaneously process and identify time-division multiplex information and data information to ensure transmission quality. The device at least There are input and output interfaces that provide TDM packets and data interfaces; remote/near-end loop test functions between TDM modules and Ethernet networks; bit error rate (BER) tests between TDM modules and Ethernet networks; calculations in Ethernet networks The packet size of the present invention is increased to enhance the transmission efficiency; the device further includes a packet counting function; finally, the device of the present invention is manufactured according to relevant technical specifications of IEEE802.11.

The architecture diagram of the preferred embodiment of the present invention as shown in Figure 2, wherein the multifunctional wireless local area network access device 20 includes:

A programmable logic array (FPGA) 26 is electrically connected to the data processing unit 22 and the time division multiplexing unit 24 in the device, and converts the high-speed information from the time division multiplexing unit 24 and the data processing unit 22 into a standard data packet format ; The programmable logic array 26 is also electrically connected to the first memory 261, so as to temporarily store the received information;

A time-division multiplex (TDM) processing unit 24, which includes a second entity physical interface conversion device 243 and a line interface unit 241 for receiving information, so as to process time-division multiplex information from the broadband network, such as voice information; and TDM The processing unit can perform near-end loop test (Near End Loop Test), remote loop test (Far End Loop Test) and perform bit error rate (BER) monitoring functions;

A data processing unit 22, including a connection port 221 for connecting external data information, such as RJ-45, USB connection interface, etc., also includes a first physical interface conversion device 223 and a physical transmission interface 225, so as to receive and process data information and send it to programmable logic array 26; and the data processing unit may perform near-end loop testing, remote loop testing, etc.;

A wireless local area network module 25 is electrically connected to the multifunctional wireless local area network access device 20. The wireless local area network module 25 converts the data packet into radio frequency information and sends it out through the antenna; or the antenna receives the radio frequency information and converts it into a digital information ( Standard data packet), then sent to a processor 28, the processor 28 processes the received digital information, and distributes it to the wireless local area network module 25 or the programmable logic array 26 through the second memory 281 as a memory for temporarily storing the digital information;

The radio frequency information received is received by a wireless local area network module 25, then processed by the programmable logic array 26, separated into time division multiple information and data information, and sent to the time division multiple processing unit 24 and the data processing unit 22 respectively for processing processing, and finally received by the corresponding device.

The multifunctional wireless local area network access device (Advanced WLAN AP) 20 of the present invention is based on the IEEE802.11 standard wireless network access equipment as a platform, plus necessary hardware circuits and product management software. The time-division multiplex information from broadband (such as E1/DS1/J1) voice is transmitted to the line interface unit (LIU) 241 through the second entity physical interface conversion device (XFMR) 243, and after processing, it is multiplexed into a high-speed information flow, and then Transfer to Programmable Logic Array (FPGA) 26 elements. The data information is transmitted to the programmable logic array 26 through the connection port 221 , the first physical-physical interface conversion device 223 and the physical transmission interface 225 .

After the time-division multiplex information for transmitting voice information is processed in the programmable logic array 26, it is packaged into data packet information according to the frame format protocol of the Ethernet network, which includes the local end address, destination address, information priority, etc. It is then sent to the output buffer of the programmable logic array 26, such as the first memory 261 electrically connected in the drawing. After the data information is sent to the programmable logic array 26, the load information (payload) of the information flow is taken out, and after scrambling (scrambling), it is like encrypting the information, and the original various control information is added to form a The complete packet information is finally sent to the output register of the programmable logic array 26 , such as the electrically connected first memory 261 . Because time-division multiple information has the requirement of timeliness, that is, it cannot wait, the packet of time-division multiple information has more priority to output than the packet of data information, and finally the packet information is output to the processor 28, which is processed by the wireless local area network module 25 to form Radio frequency information (RF), which is finally transmitted into the sky by the antenna.

When receiving radio frequency information, the weak radio frequency information is received via the antenna and sent to the wireless local area network module 25. After being filtered and amplified, the radio frequency analog information is converted into digital information and sent to the processor 28 in a standard data packet. For the programmable logic array 26, the time-division multiplexing information and data information are separated here, and the scrambling code (de-scrambling) is removed, as in the action of decoding it, and the information is sent to the time-division multiplexing processing unit 24 and the data respectively. The processing unit 22 restores the original TDM information and data information after processing.

Processor 28 is monitoring the operation status of the device described in the present invention at any time, including bit error rate (BER) of time-division multiplex information, fault occurrence report, etc., and can also perform test work, such as remote loop test and near-end loop test ( Far/Near End Loop Test).

The processor 28 is also responsible for connecting with a terminal through a hardware circuit, and displaying information output, input, and results on a monitor.

The following is the step flow of the information processing method of the multifunctional wireless local area network access device of the present invention, which includes the step of transmitting information ( FIG. 3 ) and the step of receiving information ( FIG. 4 ).

FIG. 3 is a process flow diagram showing the step of transmitting information. In the present invention, the transmission path is changed by each module arranged in the same circuit board, and the time-division multiple information and data information are processed and identified at the same time. The steps of information transmission are as follows:

Step S301: start transmitting information;

Step S303: The multifunctional wireless local area network access device receives external time-division multiplex information, such as voice information;

Step S305: Process the information by the time division multiplex processing unit therein, and convert it into a high-speed information stream;

Step S307: After being received by the programmable logic array, it is converted into a standard data packet format, and temporarily stored in the first memory;

Step S313: On the other hand, the multifunctional WLAN access device of the present invention receives data information;

Step S315: Process the data information through the data processing unit;

Step S317: forming a complete packet from the programmable logic array, and temporarily storing it in the first memory after being scrambled;

Step S308: each information is output to the processor by the programmable logic array;

Step S309: forming radio frequency information via the wireless local area network module;

Step S310: end after transmitting the information.

Fig. 4 is a processing flowchart of the step of receiving information in the present invention.

Step S401: start receiving radio frequency information, and receive radio frequency information through the antenna connected to the device;

Step S403: After the wireless radio frequency information is received by the wireless local area network module, it is filtered and amplified, and the radio frequency analog information is converted into digital information and transmitted in a standard data packet;

Step S405: sending the converted standard data packet to the processor;

Step S407: Send to the programmable logic array to separate the information, that is, to separate the TDM information from the data information, and after removing the scrambling code, the information is respectively sent to the TDM processing unit and the data processing unit;

Step S408: wherein the time division multiplexing information is received by the line interface unit in the time division multiplexing processing unit;

Step S409: Restoring the TDM information therein, such as restoring voice information;

Step S410: Received by a corresponding device, such as a phone;

Step S418: the data information is received by the physical transmission interface in the data processing unit;

Step S419: restore its data information;

Step S420: Received by a corresponding device, such as a computer or a related digital information processing device.

According to the known technology, the present invention proposes a cost-saving multifunctional wireless local area network access device and its information processing method, which can provide complete management information and master the transmission quality of time-division multiplexing. The equipment includes wireless local area network, data processing and time-division multiplexing There are three major parts such as road processing, among which the system management function can set various working parameters and monitor various functions. The most important thing is to integrate the wireless local area network module, the data processing unit and the time-division multiplex processing unit into the same circuit board. In addition to being able to integrate information, it also saves space and saves the cost of purchasing known converters for various functions.

To sum up, the present invention is indeed a rare invention, and has industrial applicability, novelty and progress, fully meets the requirements for invention patent application, and the application is filed according to law.

The above descriptions are only preferred feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Therefore, all equivalent structural changes made by using the description and icon content of the present invention are also included in the scope of the present invention. Inside, together with Chen Ming.

Claims (10)

1. a Multifunctional WLAN access apparatus is characterized in that, this device includes:

One Progranunable Array Logic is converted to a normal data package with a time-division multiline message and a data message that receives, and maybe the normal data package that receives is separated into this time-division multiplex information and this data message;

The MCPU multiple call processing unit of one time-division is electrically connected this Progranunable Array Logic, to handle this time-division multiplex information that receives;

One data processing unit is electrically connected this Progranunable Array Logic, with deal with data information;

One processor is electrically connected this Progranunable Array Logic, handles to receive this normal data package, and this processor is monitored the error rate of the time-division multiplex information of this Multifunctional WLAN access apparatus, and carries out remote loop test and near-end loop-around test; And

One wireless local area network module is electrically connected this processor, and this normal data package is converted to a radio-frequency information, or receives this radio-frequency information and be converted to this normal data package.

2. Multifunctional WLAN access apparatus as claimed in claim 1, it is characterized in that, this data processing unit includes an entity transmission interface, one first entity physics interface switching device and a connectivity port, and receives this data message by this connectivity port.

3. Multifunctional WLAN access apparatus as claimed in claim 1 is characterized in that, this time-division multiplex processing unit includes a line interface unit and one second entity physics interface switching device.

4. the information processing method of a Multifunctional WLAN access apparatus, it is characterized in that, handle a time-division multiline message and a data message respectively by a time-division MCPU multiple call processing unit in this device and a data processing unit, and by a Progranunable Array Logic transitional information and change transfer path, the transfer step of this information processing method includes:

Receive a time-division multiline message and a data message, this time-division multiplex processing unit and this data processing unit by this Multifunctional WLAN access apparatus receives it respectively;

Changing this time-division multiplex information and this data message is the normal data package, changes it by this Progranunable Array Logic;

This normal data package is sent to a processor, and this processor is monitored the error rate of the time-division multiplex information of this Multifunctional WLAN access apparatus;

This normal data package converts a radio-frequency information to, handles forming this radio-frequency information by a wireless local area network module;

And transmit this radio-frequency information by antenna.

5. as the information processing method of Multifunctional WLAN access apparatus as described in the claim 4, it is characterized in that this time-division multiplex processing unit is carried out near-end loop-around test and remote loop test, or the monitoring function of the execution error rate.

6. as the information processing method of Multifunctional WLAN access apparatus as described in the claim 4, it is characterized in that this data processing unit is carried out near-end loop-around test and tested with remote loop.

7. as the information processing method of Multifunctional WLAN access apparatus as described in the claim 4, it is characterized in that this processor is carried out remote loop test and near-end loop-around test.

8. the information processing method of a Multifunctional WLAN access apparatus, it is characterized in that, the time-division multiplex information and date information of separating time-division multiplex processing unit and data processing unit processing by the Progranunable Array Logic in this device, and the change transfer path, the receiving step of this information processing method includes:

Receive a less radio-frequency information, receive less radio-frequency information by the antenna that this device was electrically connected;

Transmitting this less radio-frequency information to one wireless local area network module, through filtering, amplification, is a normal data package with this less radio-frequency information translation;

Transmit this normal data package to a processor, this processor is monitored the error rate of the time-division multiplex information of this device;

Separate this normal data package, this normal data package is sent to this Progranunable Array Logic, this normal data package is separated into this time-division multiplex information and this data message;

Receive time-division multiplex information and date information, receive this time-division multiplex information by this time-division multiplex processing unit, receive this data message by this data processing unit, wherein, this time-division multiplex processing unit is carried out near-end loop-around test and remote loop test, or the monitoring function of the error rate;

Restore information is reduced to separately message form respectively by this time-division multiplex information and this data message;

Receive restore information, this time-division multiplex information and the pairing device of this data message receive restore information separately respectively.

9. as the information processing method of Multifunctional WLAN access apparatus as described in the claim 8, it is characterized in that this data processing unit is carried out near-end loop-around test and tested with remote loop.

10. as the information processing method of Multifunctional WLAN access apparatus as described in the claim 8, it is characterized in that this processor is carried out remote loop test and near-end loop-around test.

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