JPH07212814A - Connection device to wired lan of radio network using portable radio telephone system - Google Patents

Abstract

PURPOSE:To realize communication between radio network terminals and existing wired networks by using a portable radio telephone network to constitute a radio network for data communication and mutually connecting this network and the wired LAN. CONSTITUTION:The call setting request from a radio terminal 102 is processed in a call control part 4 of a connector 1 to set the call between the radio terminal 102 and the connector 1. The radio terminal 102 uses the set call to transmit data. The connector 1 converts the format of received data by a repeating control part 5 and transmits data onto a wire LAN 200 through an interface part 6. A WS 201 receives data destined for itself out of data on the wire LAN. When data is transmitted from the WS 201, the connector 1 which receives data destined for the radio terminal 102 through the wire LAN 200 uses a call control part 4 to set the call between the connector itself and the radio terminal 102 as the destination of data. After the call is set, pertinent data is transmitted to the radio terminal 102.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention creates a wireless network system for data communication by using a wireless mobile phone network constructed for a wireless mobile phone system, and uses this wireless network system as an existing wired LAN. The present invention relates to a connection device that enables communication between terminals on each network by connecting to a system.

[0002]

2. Description of the Related Art LAN systems have been adopted in various fields, and their types and scales are also expanding. Especially wireless LAN
The system has been rapidly spread in recent years due to advantages such as easy system change and reduction of construction cost. IEEE
Defines the physical layer and the MAC layer as standards for wireless LAN.
MAC is planned to be summarized as EEE 802.11.
As a layer standard, CSMA / CA (Carrier Sense Multi
The adoption of the ple Access with collision avoidance method is effective.

On the other hand, with the spread of personal computer communication, a connection between a terminal and a LAN using a telephone line has been made. Examples of building a network using telephone lines include SLIP (Serial Line IP) and PPP (Point-to-Poin).
t Protocol), which is to create an IP link using the asynchronous non-procedural method in the data link layer, and to call or disconnect this IP link as needed.

Since data communication is performed using a wireless mobile phone system, for example, data communication is being considered in a personal handy phone (PHP), which has been attracting attention in recent years. Under consideration.

A wireless network for data communication constructed using a wireless mobile phone network or a wireless LAN is used as an existing wired L
A conventional method of interconnecting with an AN is shown in FIG. The wireless base station 101 has an interface with a wired LAN, and the wireless network and the wired LAN are interconnected via this wireless base station. The wireless terminal 102 is a WS on the wired LAN.
When communicating with the (workstation) 201, the wireless terminal 102 transmits data to the wireless base station 101, the wireless base station 102 performs processing such as format conversion, and the wireless LAN station 102 transmits the data to the wired LAN. Relay data.

[0006]

However, when introducing a wireless LAN to construct a wireless network, it is necessary to newly form a wireless communication network including a wireless base station, and a considerable amount of capital investment is required at the time of introduction. There is a problem that is needed. Further, in order to interconnect the wireless network with the existing wired LAN, it is necessary to install a wireless base station having an interface with the wired LAN, but since the wireless base station is difficult to move, the connection form There is a problem that it is difficult to flexibly respond to changes.

The present invention constructs a wireless network for performing data communication by utilizing a wireless mobile telephone network which is under construction, the wireless terminal side is provided with an interface with a wired LAN, and this wireless network is used. Existing wired LAN
It is an object of the present invention to provide a connection device that enables communication between terminals on each network by connecting to each other.

[0008]

A wireless unit for converting a digital signal into a wireless signal such as modulation, a wireless control unit for allocating channels, a call control unit for setting / releasing a call, and a wired LAN. And a relay control unit that relays data between the call control unit and the wired LAN interface unit.

[0009]

According to the present invention, with the above-described configuration, a wireless network for data communication is constructed using the wireless mobile telephone network, and interconnection with an existing wired LAN is performed,
It enables communication between terminals on each other's network.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the form of a network constructed by applying the present invention. In the figure, 1 is a connection device of the present invention, 1
00 is a wireless network constructed using a wireless mobile phone network, 101 is a wireless base station in the wireless mobile phone network, 1
02 is a wireless terminal, 200 is a wired LAN, and 201 to 205
Is a WS (workstation) or PC on a wired LAN
(Personal computer) or printer. FIG. 2 shows a connection device 1 according to the first embodiment of the present invention.
It is a block diagram of. Reference numeral 2 is a radio unit for converting digital signals into radio signals such as modulation, 3 is a radio control unit for allocating channels, and 4 is a call control unit for setting / releasing a call
Reference numeral 6 is an interface unit with a wired LAN, and 5 is a relay control unit for relaying data between the call control unit and the wired LAN interface unit.

In FIG. 1, the operation when the wireless terminal 102 performs data communication with the WS 201 is as follows.
A call setting request from the wireless terminal 102 is processed by the call control unit 4 of the connection adapter 1, and a call is set between the wireless terminal 102 and the connection adapter 1. The wireless terminal 102 transmits data using the set call. The connection device 1 converts the format of the received data in the relay control unit 5, and transmits the data to the wired LAN 200 via the interface unit 6. The WS 201 receives, out of the data on the wired LAN, data addressed to itself. The operation of transmitting data from the WS 201 is as follows. The connection adapter 1, which has received the data addressed to the wireless terminal 102 via the wired LAN 200, uses the call control unit 4 to set up a call with the wireless terminal 102 that is the destination of the data. After setting up the call, the corresponding data is transmitted to the wireless terminal 102.

According to this embodiment, a wireless network for data communication is constructed using a wireless mobile telephone network, interconnected with an existing wired LAN, and the terminals on the respective networks are interconnected. Communication becomes possible.

A second embodiment of the present invention will be described below with reference to the drawings. A configuration diagram of the connection device 1 is shown in FIG. 1st below
The same components as those of the connection device in the embodiment are given the same numbers and their explanations are omitted. A call management unit 7 sets a plurality of calls with one or more wireless terminals by exchanging control information using the wireless control unit. Wireless terminal 1
02 and the WS 201, the call management unit 7 communicates with the wireless terminal 102 for transmission and reception.
Two calls are set up, and two-way communication is performed using them.
When a plurality of wireless terminals simultaneously request transmission to the WS on the wired LAN, the call management unit 7 of the connection adapter 1
A plurality of calls are set up, data from a plurality of wireless terminals is received, and relayed on a wired LAN.

According to this embodiment, the connection device can set up a plurality of calls with one or more wireless terminals,
Efficient data communication can be performed.

A third embodiment of the present invention will be described below with reference to the drawings. A configuration diagram of the connection device 1 is shown in FIG. Reference numeral 8 is a collision detection unit that detects a collision occurring on the wired LAN, 9 is a collision management unit that interrupts relay processing to the wired LAN due to the collision detection of the collision detection unit, and 10 is transmitting data in which the collision has occurred. A collision notification unit that notifies the wireless terminal of the occurrence of a collision. The connection device 1 connects the wireless terminal 102 to WS
When data is transmitted to the wired LAN 200 to relay the data to the 201, the WS on the wired LAN is simultaneously transmitted.
Alternatively, when the PC transmits data, the wired LAN 200
A collision occurs on the top. When detecting a collision, the collision detection unit 8 notifies the collision management unit 9 and the collision notification unit 10 of the occurrence of the collision. On the other hand, the collision management unit 9 uses the relay control unit 5
To the wireless terminal 102 that has transmitted the data, and the collision notification unit issues a collision occurrence notification to the wireless terminal 102 that has transmitted the data.

According to this embodiment, the connection device is a wired LA.
When a collision occurs on N, it is possible to prevent the relay of data from the wireless terminal, and it is possible to notify the wireless terminal of the transmission source of the occurrence of the collision.

A fourth embodiment of the present invention will be described below with reference to the drawings. A configuration diagram of the connection device 1 is shown in FIG. The connection device 1 has a plurality of interface units 6 and a plurality of wired L
It is connected to the AN. Reference numeral 11 is a filtering / routing function unit that performs filtering or routing processing. The filtering / routing function unit 11 confirms the destination of the data received from the wireless terminal, and then the interface unit 6 of the corresponding network.
Then, the relay processing of the data is performed.

According to this embodiment, the connection device can prevent unnecessary relay processing to the wired LAN, and can reduce the processing load of the connection device and the traffic on the LAN.

A fifth embodiment of the present invention will be described below with reference to the drawings. A configuration diagram of the connection device 1 is shown in FIG. Reference numeral 12 is a broadcast processing unit. For the broadcast packet received by the wired LAN interface unit 6,
The connection adapter 1 sets up a call with a wireless terminal, transmits a packet, and then releases the call to all connectable wireless terminals.

According to this embodiment, the connection device is a wired LA.
Broadcast packets on N can be relayed to the wireless network.

[0021]

According to the present invention, a wireless network for data communication is constructed using a wireless mobile telephone network, interconnected with an existing wired LAN, and terminals on the respective networks are mutually connected. Communication becomes possible.

[Brief description of drawings]

FIG. 1 is a diagram of a topology of a network according to the present invention.

FIG. 2 is a diagram showing a configuration of a connection device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a connection device according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a connection device according to a third embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a connection device according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a connection device according to a fifth embodiment of the present invention.

FIG. 7 is a diagram of a conventional network connection form.

[Description of Reference Signs] 1 connection device 2 wireless unit 3 wireless control unit 4 call control unit 5 relay control unit 6 interface unit 7 call management unit 8 collision detection unit 9 collision management unit 10 collision notification unit 11 filtering / routing function unit 12 broadcast Processing unit 100 Wireless network 101 Wireless base station 102, 103 Wireless terminal 200 Wired LAN 201, 203 WS (workstation) 202, 204 PC (personal computer) 205 Printer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H04Q 7/30 7/38 H04L 12/46 12/28 7831-5K H04L 11/00 310 C (72 ) Inventor Atsushi Ishiba 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A wireless mobile phone system comprising a wireless mobile phone, a wireless terminal and a wireless base station, and a wired LAN.
A connection device for use in an environment where a system exists, which is a wireless unit for converting a digital signal to a wireless signal, a wireless control unit for assigning a channel, and a call for setting / releasing a call. A connection device comprising: a control unit, a wired LAN interface unit, and a relay control unit that relays data between the call control unit and the wired LAN interface unit. 2. The connection device according to claim 1, further comprising a call management unit that sets a plurality of calls with one or more wireless terminals by exchanging control information using the wireless control unit. A connection device characterized by the above. 3. The connection device according to claim 2, wherein a collision detection unit that detects a collision that has occurred on the wired LAN, and a collision that interrupts relay processing to the wired LAN by the collision detection of the collision detection unit. A connection device, comprising: a management unit; and a collision notification unit that notifies a wireless terminal that has transmitted data in which a collision has occurred of the occurrence of a collision. 4. The connection device according to claim 3, further comprising a filtering / routing function unit that performs filtering or routing processing according to a destination of data during relay processing of the relay control unit. Connection device. 5. The connection device according to claim 4, wherein a call is set with a wireless terminal for a broadcast packet received by a wired LAN interface unit, and the call is released after the packet is transmitted. A connection device comprising a broadcast processing unit for performing processing to all connectable wireless terminals.