JP2002247070A - Network information service providing system, cable lan connection controller therefor and radio lan connection controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide Internet service at low cost, high speed and with large capacity not only to dwellers in a multiple dwelling house such as a mansion but to surrounding dwellers. SOLUTION: Communication infrastructure to be constructed with an ISP 7 is connected to communication infrastructure to be constructed with surrounding areas through the multiple dwelling house as a relay spot, and network information service to be provided to the multiple dwelling house by the ISP 7 is provided including the surrounding areas. The communication infrastructure to be constructed with the ISP 7 uses a telephone line 3 laid in the multiple dwelling house and an exclusive line by an optical fiber cable 6 to be led in the multiple dwelling house as a communication medium and the communication infrastructure to be constructed with the surrounding areas uses radio to be propagated among a master machine antenna 8 to be installed on the rooftop of the multiple dwelling house and a slave machine antennas 9 to be installed on individual houses in the surrounding areas as a communication medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network information service providing system, a wired LAN connection control device and a wireless LAN connection control device in the system, and more specifically, to an apartment house or the like, and a surrounding area thereof. The present invention relates to a network information service providing system capable of performing a network information service using an apartment house as a relay base, and a wired LAN connection control device and a wireless LAN connection control device in the system.

[0002]

2. Description of the Related Art The introduction of an Internet always-on service has been gradually progressing mainly in newly constructed condominiums (multi-family houses) where it is relatively easy to construct a LAN (Local Area Network) environment. However, high-speed leased lines using optical fibers are still expensive, and in most cases, low-cost and cheap digital leased lines are shared among residents in apartments, making it difficult to provide broadband services, which are expected to spread in the future. is there. Here, broadband (high-speed, large-capacity) refers to a communication line of approximately 500 kbytes or more realized using optical fiber or wireless communication technology, and new services are expected in addition to video and audio.

[0003]

On the other hand, there are about 3.5 million existing condominiums nationwide, and in the future there will be a demand for not only new condominiums but also existing condominiums to have a broadband Internet service that is always connected. Similar demand is conceivable not only in condominiums and other condominiums but also in condominiums and offices. It would be advantageous if similar services could be provided to the surrounding residents.

The present invention has been made in view of the above circumstances, and a concentrator modem is installed in a common space by utilizing a collective structure in an apartment or office, and a dedicated communication network of an optical fiber is used up to the concentrator modem. In addition, installing an antenna on the rooftop makes it easy to connect wirelessly to the Internet by taking advantage of the characteristics of middle- and high-rise buildings, and it is integrated, inexpensive, high-speed, An object of the present invention is to provide a network information service providing system capable of providing a capacity Internet service, and a wired LAN connection control device and a wireless LAN connection control device in the system.

[0005]

According to an aspect of the present invention, there is provided a network information service providing system for providing a network information service to an apartment house and a surrounding area thereof. A network in which a communication infrastructure constructed between an information service provider and a communication infrastructure constructed between the surrounding area and the surrounding area are connected to each other using the apartment house as a relay base, and the information service provider performs the operation for the apartment house. The information service is provided including the surrounding area. This makes it possible to provide an inexpensive, high-speed, large-capacity Internet service to not only residents in apartments such as condominiums but also residents in the vicinity.

[0006] The invention described in claim 2 is the invention according to claim 1.
In the network information service providing system according to the communication infrastructure established between the information service provider, a telephone line laid in the apartment house,
A dedicated line using an optical fiber drawn into the apartment house is used as a communication medium. As a result, since a dedicated line using an optical fiber is used as a communication medium, broadband Internet services can be provided to residents of an apartment house such as an apartment.

[0007] The invention according to claim 3 provides the invention according to claim 1.
In the network information service providing system described in the above, the communication infrastructure established between the surrounding area,
The wireless communication system is characterized in that a radio wave propagating between a parent antenna installed on the roof of the apartment house and a child antenna installed on each house in the surrounding area is used as a communication medium. As a result, broadband Internet services can be provided to residents around apartment buildings such as condominiums because wireless communication is used as a communication medium.

[0008] The invention described in claim 4 is the first invention.
In the network information service providing system according to any one of (1) to (3), the connection between the communication infrastructure established with the information service provider and the communication infrastructure established with the surrounding area is laid in the apartment house. The method is performed through a wireless control device that matches the wired LAN with a wireless LAN constructed using the apartment house as a base station between the wired LAN and the surrounding area. This allows
A wired LAN and a wireless LAN can be combined, so that residents in a condominium such as an apartment can enjoy an integrated, inexpensive, high-speed, high-capacity Internet service via a wired LAN, and residents in the vicinity through a wireless LAN. .

According to a fifth aspect of the present invention, there is provided a wired LAN in a network information service providing system for providing a network information service to an apartment house and a surrounding area using the apartment house as a relay base. A connection control device, comprising: a plurality of concentrator modems having connection ports for LAN-connected subscriber terminals for performing packet data exchange and telephone service using a telephone line laid in the apartment house; In addition to the connection of each of the concentrator modems, a subscriber terminal in a house in the surrounding area has a respective port connected via a wireless controller, and relays each of the LAN-connected subscriber terminals. By referring to the switching hub and the header of the packet data, different communication protocols are used between the apartment house and the surrounding area. It recognizes the address in accordance with, for a router for transferring data to and from the subscriber terminals according to the address, comprising the. With the above configuration, it is possible to construct a network information service providing system capable of providing broadband Internet service to residents of an apartment house such as an apartment using an optical fiber as a communication medium.

According to a sixth aspect of the present invention, in the wired LAN connection control device in the network information service providing system according to the fifth aspect, a communication protocol different between the apartment and the surrounding area is a point in the apartment. -Two-point, point-to-multipoint in the surrounding area, and the respective addresses are recognized. As a result, it is possible to recognize the difference between a resident of an apartment house such as an apartment and a resident of a neighboring house, and it is possible to provide not only the same service but also different and unique network information services to each.

[0011] In order to solve the above-mentioned problem, an invention according to claim 7 is directed to a wireless LAN in a network information service providing system for providing a network information service to an apartment house and its surrounding area using the apartment house as a relay base. A connection control device, comprising: a wireless module that modulates and demodulates packet data transmitted and received by a wireless LAN with a subscriber terminal in the peripheral area externally connected via an antenna; A wireless control device for matching packet data to a wired LAN according to a specific protocol, and connecting the wireless control device to at least one of the ports of a switching hub in the apartment house, and connecting each of the wireless LAN-connected devices. A switching hub for relaying subscriber terminals. To. With the above configuration, it is possible to construct a network information service providing system that enables broadband Internet service to residents around an apartment house such as an apartment using wireless communication medium.

[0012] The invention described in claim 8 is the same as in claim 7.
3. The wireless LAN connection control device in the network information service providing system according to 1., wherein the specific protocol is CSMA / CA compliant with IEEE 802.11.
(Carrier sense multiple access / collision avoidance). As a result, the reception energy is smaller than the transmission energy, and the characteristics of the wireless LAN, in which collision detection is difficult, can be covered and the matching with the wired LAN can be achieved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram cited for explaining an outline of a network information service by a network information service providing system according to the present invention. As shown in the figure, a LAN line 2 is constructed in an apartment 1 by Ethernet (registered trademark), and a subscriber terminal 4 is connected to a telephone line 3 laid in each dwelling unit. Also,
In the common space of the apartment, a computer such as a router 5 is installed, and an ISP that provides network information service via the Internet via an optical fiber cable 6
(Information service provider) 7. In this way, an Internet connection environment is provided to each residence in the apartment. Also, a base unit antenna 8 is installed on the roof of the condominium, and a radio access service environment is provided to surrounding houses having an area radius of 400 m using the condominium as a radio base station. In a peripheral house, a slave unit antenna 9 is installed on a roof or a veranda, and a subscriber terminal 10 with a wireless module is prepared. In this way, the network information service provided by the ISP to the apartment complex is provided including the surrounding area.

FIG. 2 is a block diagram showing one embodiment of the network information service providing system of the present invention.
The network information service providing system of the present invention is installed, for example, in a common area of an apartment or office,
Functionally, the wired LAN connection control device 11 and the wireless LA
The N connection controller 12 is roughly divided into two.

The wired LAN connection controller 11 includes an optical line terminal (ONU) 111, a router 112, a switching hub 113, and a plurality of concentrator modem units (MDUs) 114 arranged in, for example, floor units of an apartment. Be composed. The ONU 111 is connected to the ISP via an optical fiber cable. The ONU 111 converts a DC signal transmitted from the computer of the ISP via the optical fiber cable into a signal format corresponding to a telephone line, and inserts control bits and transmits / receives. This is an optical home line terminating device for a digital line.

The router 112 has a wired LAN constructed inside the apartment and a wireless LAN constructed outside the apartment.
Computer that connects a plurality of LANs.
Relay or exchange data between N nodes. Router 112
The packet transfer, which is one of the basic functions, transfers necessary data to a computer including a target subscriber terminal by referring to header information written in the packet. In the header information of the packet, a MAC address (Media Access Control) unique to the network interface card (NIC) of the network device and an IP address of a transfer destination required for IP routing are written, and these two addresses are referred to. This realizes data transfer processing. In the wired LAN connection control device 11 built in the apartment, address authentication is performed according to a dedicated point-to-point protocol used for constant connection to the Internet.

The switching hub 113 is a concentrator that bundles network cables, also called LAN switches, has a bridge function of transferring packets only to specific ports, and reduces a high-speed network environment that reduces collisions and traffic peculiar to Ethernet LAN. Realize.
Here, a plurality of MDUs 1 installed for each floor of the apartment are connected to a port built in the switching hub 113.
14 and a switching hub 121 incorporated in the wireless LAN connection control device 12 are connected. The MDU 114 is a concentrator modem having a connection port for a LAN-connected subscriber terminal that performs packet exchange and telephone service using a telephone line laid in an apartment.

FIG. 3 shows a wiring connection structure of the MDU 114 installed on each floor of the apartment. Here, Ho
A network standard that uses telephone lines in the home, called mePNA (Phoneline Networking Alliance), is used. It is easy to connect and set up, and requires wiring work and cable costs to use existing telephone lines. do not do.

The MDU 114 is provided with ports for connecting eight subscriber terminals (connection ports for eight telephone jacks), and is further provided with an Ethernet port for a gateway device such as the router 112. Here, the router 112 is connected via an Ethernet cable (CAT line). The subscriber terminals installed in each dwelling unit are MDU1
14 ports, telephone line (UTP: Un-shielded Twisted)
Pair), and is connected to a telephone line to each dwelling unit via a connection terminal of the MDF, and to a telephone exchange network managed by a communication carrier. Is performed via an MDF (multi-connectable terminal board). In addition, MDU
The Internet connection 114 is possible even if the terminal 114 is directly connected to a terminal in the MDF, but a jack panel is used here to isolate a failure between the Internet line and the line of the communication carrier.

The description returns to FIG. The wireless LAN connection control device 12 includes a switching hub 121 and a control device 122.
It consists of. The switching hub 121 is a wired LAN
The control device 122 is connected to one of the ports of the switching hub 113 incorporated in the connection control device 11, and the wireless LAN
It has the function of relaying each subscriber terminal connected to the AN. The control device 122 transmits a packet transmitted / received via a wireless module described later to an IEEE 802.11-compliant CS.
It has a function of matching with a wired LAN in accordance with MA / CA (carrier sense multiple access / collision avoidance).

Internal structure of control device 122 and wireless LA
The operation concept of N is shown in FIG. The control device 122 includes:
The control device main unit A includes a control device main unit A and a wireless module B.
It consists of control units that implement the protocols of presentation, session, transport, network, data link, and physical). Each subscriber terminal installed in the surrounding house has the same configuration, and the transmission and reception of the modulated packets between the wireless modules B is performed. Note that wireless L
In the AN connection control device 12, a wireless Internet connection environment is provided from the base unit antenna 8 installed on the rooftop of the apartment to the slave unit antennas 9 installed in each peripheral house according to a point-to-multipoint protocol. . Here, as a specification of the wireless module B, a wireless frequency 2.4 GHz band (four male and female fractional channels) and a transmission output of 10 mW / MHz or less are used, and modulation by spread spectrum is used to perform access by polling. . In addition, one antenna 2
It is assumed that the transmission speed is about 00 users and 2M bits.

In a wireless LAN, a MAC (Media Access Control) for controlling a method of transmitting a packet onto a medium (a wireless LAN is a space) is used.
l) The protocol of the layer is CSMA / C standardized by IEEE802.3 in order to ensure compatibility with the wired LAN.
A (Carrier sensing multiple access / collision detection: Carrier Sen
se Multiple Access with Collision Detection)
You need to use a protocol similar to. 100B
CSMA / CD, which is a MAC layer protocol used in a wired LAN such as ASE-T (Ethernet), starts transmitting a packet without establishing a connection.
When a collision occurs, the packet is retransmitted after a certain period of time detected by detecting the difference in the level of the reflected carrier.
In the case of a wireless LAN, the reception energy is smaller than the transmission energy, and collision detection is difficult. Therefore, CSMA / CA (Carrier Sense Multiple Access / Collision Avoidance: Carrier Sense Multiple Access with Wired) differs from wired.
Collision Avoidance) is employed.

In CSMA / CA, collision avoidance is performed in the following procedure. That is, the transmitting side confirms that the transmission path is free by carrier sensing, and transmits a random pulse before transmitting the data frame. Then, a plurality of pulses are transmitted within a predetermined time (collision pulse window), and when no pulse is transmitted, the transmission path is monitored. When receiving a pulse that has not been transmitted by itself, the other subscriber terminal determines that transmission processing is in progress and cancels transmission. Also, ACK (Acknowledgement) is returned at the MAC level, and reception confirmation is performed. If ACK is not returned from the receiving side, transmission is considered to have failed, and retransmission is performed. In this way, collision avoidance is performed instead of collision detection.

It should be noted that the information provision service for the residents in the apartment and the residents in the surrounding area is based on the ID provided at the time of contract.
And a common service menu and an individual service menu are provided for each. By using the above-described network information service providing system, it is possible to provide an unprecedented interactive service by utilizing a large-capacity network constantly connected environment. For example, Vo
Inexpensive telephone service using IP (Voice IP), online battle game that can play shogi, mahjong, go, martial arts game between game centers and apartments, telemedicine that remotely monitors with various sensors, nursing care service, There are Internet broadcasting stations that have absorbed the functions of CATV (Cable TV), and correspondence education that allows you to learn your favorite curriculum interactively at any time. Specifically, we monitor elderly people and children on the go with a net camera, practice with an ikebana teacher who moves to a large monitor in a Japanese room, and detect sugar in urine and send it to a doctor. To receive advice after receiving a check, check the latest stock price movements and news on the living room speakers, watch the latest video and music on demand, etc.
An unprecedented living environment can be realized by continuous Internet connection.

As described above, according to the present invention, a concentrator modem is installed in a common space by utilizing a collective structure in a condominium or office, a dedicated optical fiber communication network is used up to the concentrator modem, By installing an antenna on the rooftop to take advantage of the features, it is easy to connect wirelessly to the Internet, and integrated, inexpensive, high-speed, large-capacity Internet services are provided not only for residents in apartments such as condominiums but also for nearby residents. To provide. According to the above-described embodiment of the present invention, the wireless base station is a condominium such as a condominium, and wireless service is provided to the surrounding area in an area with a radius of 400 m around the wireless base station. It is possible to provide offices in high-rise buildings and provide the same wireless service to buildings located in the vicinity, and also to provide dedicated services for broadband by connecting nearby buildings with optical fiber. Can be

[0026]

As described above, according to the first aspect of the present invention, a communication infrastructure established with an information service provider and a communication infrastructure established with a peripheral area are collected. By connecting the house as a relay base and providing network information service for the apartment complex by the ISP including the surrounding area, not only residents in apartments such as condominiums, but also neighboring residents,
High-speed, large-capacity Internet services can be provided.

According to the second aspect of the present invention, I
The communication infrastructure built between the SP and the resident of apartments and other multi-dwelling units will be provided by using a telephone line laid in the multi-dwelling unit and a dedicated line of optical fiber drawn into the multi-dwelling unit as communication media. Broadband Internet services are now possible.

According to the third aspect of the present invention, the communication infrastructure constructed between the surrounding area and the surrounding area is installed in the parent antenna installed on the roof of the apartment house and in each individual house in the surrounding area. By using the radio wave propagating between the child antenna and the communication medium as a communication medium, a broadband Internet service can be provided to residents in the vicinity of a condominium such as an apartment.

According to the fourth aspect of the present invention, I
The connection between the communication infrastructure established with the SP and the communication infrastructure established with the surrounding area is based on the wired LAN laid in the apartment house and the base of the apartment house between the peripheral area and the surrounding area. By performing the operation via a wireless control device that matches the wireless LAN to be constructed, residents in a condominium such as an apartment are connected via a wired LAN, and peripheral residents are connected via a wireless LAN.
, It is possible to enjoy an inexpensive, high-speed, large-capacity Internet service.

According to the fifth aspect of the present invention, a connection port for a LAN-connected subscriber terminal for exchanging packet data and performing a telephone service using a telephone line laid in an apartment house is provided. In addition to being connected to a plurality of concentrator modems, each of the concentrator modems has a respective port to which a subscriber terminal located in a house in the surrounding area is connected via a wireless control device, and is connected to each of the LAN-connected subscriber terminals. A switching hub that relays the packet data, and a router that recognizes an address according to a different communication protocol between the housing complex and the surrounding area by referring to the header of the packet data and transfers data between each subscriber terminal according to the address. To provide broadband Internet services to residents of condominiums and other condominiums using optical fiber as a communication medium. You can build a network information service providing system a.

According to the invention described in claim 6, the communication protocol different between the apartment house and the surrounding area is based on the point-to-point in the apartment house and the point-to-multipoint in the surrounding area, By recognizing each address, it is possible to recognize the difference between a resident of an apartment house such as an apartment and a resident of a neighboring house, and it is possible to provide different and unique network information services as well as the same service.

According to the seventh aspect of the present invention, a wireless module for modulating and demodulating packet data transmitted / received by a wireless LAN to / from a subscriber terminal in a peripheral area externally connected via an antenna, and a wireless module A wireless controller that matches packet data transmitted and received via a wireless LAN according to a specific protocol with at least one of the ports of a switching hub in an apartment house, and connects the wireless controller to the wireless LAN. And a switching hub that relays each subscriber terminal, it is possible to build a network information service providing system that enables broadband Internet service to residents around apartments and condominiums using wireless communication media. it can.

According to the eighth aspect of the present invention, the specific protocol is a CSM conforming to IEEE 802.11.
By complying with A / CA (carrier sense multiple access / collision avoidance), the received energy is smaller than the transmitted energy, and it is possible to cover the characteristics of the wireless LAN in which collision detection is difficult and to achieve matching with the wired LAN.

[Brief description of the drawings]

FIG. 1 is a diagram cited for explaining an outline of a network information service by a network information service providing system of the present invention.

FIG. 2 is a block diagram illustrating an embodiment of a network information service providing system according to the present invention.

FIG. 3 is a diagram cited for describing a wiring connection structure of the MDU shown in FIG. 2;

FIG. 4 is a diagram cited for describing an internal configuration and an operation concept of the control device in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Condominium 2 LAN line 3 Telephone line 4 (10) Subscriber terminal 5 (112) Router 6 Optical fiber cable 7 Information service provider (ISP) 8 Base unit antenna 9 Handset antenna 11 Wired LAN connection control device 12 Wireless LAN connection control Device 111 Optical line terminal (ONU) 113 (121) Switching hub (S-HUB) 114 Concentrator modem (MDU) 122 Controller

Claims (8)

[Claims] 1. A network information service providing system for providing a network information service to an apartment house and its surrounding area, comprising: a communication infrastructure constructed between an information service provider and the surrounding area; A network information service providing system, wherein a communication infrastructure to be constructed is connected with the apartment house as a relay base, and a network information service provided for the apartment house by the information service provider is provided including the surrounding area. 2. A communication infrastructure established between the information service provider and the information service provider, wherein a communication line includes a telephone line laid in the apartment house and a dedicated line using an optical fiber drawn into the apartment house. 2. The network information service providing system according to claim 1, wherein: 3. The communication infrastructure constructed between the surrounding area and a parent antenna installed on the roof of the apartment house and a child antenna installed on an individual house in the surrounding area. The network information service providing system according to claim 1, wherein the communication medium is wireless. 4. A connection between a communication infrastructure established with the information service provider and a communication infrastructure established with the surrounding area, wherein: a wired LAN laid in the apartment house; Wireless L constructed with the apartment house as a base station between the area
4. The network information service providing system according to claim 1, wherein the network information service is provided via a wireless control device that matches an AN. 5. A wired LAN connection control device in a network information service providing system for providing a network information service to an apartment house and a surrounding area using the apartment house as a relay base, wherein the wired LAN connection control device is laid in the apartment house. A plurality of concentrator modems having connection ports for LAN-connected subscriber terminals for performing packet data exchange and telephone service using a telephone line; A switching hub that relays each of the LAN-connected subscriber terminals, each of which has a port to which a subscriber terminal in a house is connected via a wireless control device, and by referring to a header of the packet data, Recognize addresses according to different communication protocols in the apartment complex and the surrounding area, and according to the addresses, A wired LAN connection control device in a network information service providing system, comprising: a router for transferring data to and from a subscriber terminal. 6. A different communication protocol between the apartment house and the surrounding area, the point-to-point communication in the apartment house.
6. The wired LAN connection control apparatus in the network information service providing system according to claim 5, wherein the point and the surrounding area follow point-to-multipoint, and the respective addresses are recognized. 7. A wireless LAN connection control device in a network information service providing system for providing a network information service to an apartment house and a surrounding area using the apartment house as a relay base, wherein the wireless LAN connection control apparatus is externally connected via an antenna. A wireless module that modulates and demodulates packet data transmitted and received by a wireless LAN with a subscriber terminal located in the peripheral area; and matches packet data transmitted and received via the wireless module with a wired LAN according to a specific protocol. A wireless control device, and a switching hub that connects the wireless control device to at least one of the ports of the switching hub in the apartment house and relays each of the subscriber terminals connected to the wireless LAN. Characteristic network information service providing system Wireless LAN connection control device. 8. The method according to claim 1, wherein the specific protocol is IEEE8080.
The wireless LAN connection control apparatus in a network information service providing system according to claim 7, wherein the apparatus conforms to CSMA / CA (carrier sense multiple access / collision avoidance) based on 2.11.