JPH0898238A - Wireless communication system, wireless communication device, and communication method - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To connect wireless terminals to each other requires a connection processing time. SOLUTION: When performing a terminal interconnection (PS interconnection) in a wireless terminal (PS) for a digital cordless telephone, a connection target is determined from input information, and the connection target is a wireless terminal interconnection. If there is, the call channel for priority monitoring of the partner is calculated from the PS call number of the partner (step S804). If it is confirmed that the priority monitoring target call channel is empty, in step S806,
The call control signal is sent on the priority monitored call channel that has been confirmed to be free, and the caller terminal gives priority to the call channel on the priority monitor target call channel, which is frequently monitored at the connection target terminal. To send.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication system, a wireless communication device and a communication method in which wireless terminals accommodated in each other communicate with each other.

[0002]

2. Description of the Related Art In conventional simplex wireless communication, which is conventionally known as a method of wirelessly connecting without using a specific control signal transmission channel, a calling side detects a vacant channel for a specified time. , Connection request information is being sent. Then, the wireless terminal on standby scans all channels and receives the connection request information.

[0003]

However, in the above-mentioned conventional simplex system, there is a high possibility that all channels will be scanned by the time a call signal is received between wireless terminals, and it takes a considerable amount of time to connect. There is a problem of cost.

The present invention has been made in view of the above problems, and an object thereof is to provide a wireless communication system capable of shortening the connection processing time for connecting wireless terminals to each other. Is.

Another object of the present invention is to provide a wireless communication system which allows mutual operation between a plurality of wireless communication networks by a simple operation.

A further object of the present invention is to provide a wireless communication system capable of mutual access between a plurality of wireless communication networks with a simple structure.

[0007]

To achieve the above object, the present invention comprises a plurality of wireless communication terminals within a wireless communication area and a wireless base station accommodating the plurality of wireless communication terminals. In a wireless communication system in which a plurality of wireless communication terminals perform communication using the control channel and the communication channel when communicating through the wireless base station, the plurality of wireless communication terminals use the communication channel without using the control channel. Communication means for communicating with another wireless communication terminal; setting means for setting at least one specific communication channel from a plurality of communication channels based on a communication result of the communication means; and the specific communication. It is provided with a confirming unit that preferentially confirms the idle state of the channel, and a connecting unit that connects a wireless line to the partner wireless communication terminal according to the confirmation result of the confirming unit.

Further, another invention is a wireless communication system comprising a wireless communication terminal having an identification code and a wireless base station accommodating the wireless communication terminal based on the identification code,
Insertion means for inserting the storage medium storing the identification code from the outside, reading means for reading the identification code in the storage medium inserted by the insertion means, and output means for wirelessly outputting the read identification code With.

According to another aspect of the invention, a communication means for communicating with another communication device through the communication channel without using the control channel and a communication result among the plurality of communication channels based on the communication result of the communication means. A setting means for setting at least one specific communication channel, a confirmation means for preferentially confirming the idle state of the specific communication channel, and a partner wireless communication terminal according to the confirmation result by the confirmation means. And a connection means for connecting a wireless line.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. [First Embodiment] FIG. 1 is a block diagram showing a system configuration of a digital cordless telephone system according to a first embodiment of the present invention. In the figure, 101 to 1
Reference numeral 04 is a wireless base station (BS1 to BS4), 105 is a wireless terminal (PS), and 106 is a communication control device (CE).

The communication control device CE includes radio base stations BS1 to BS1.
To accommodate BS3, public network 170, and telephone 180,
Each has interfaces 161, 162, 163, an exchange switch (SW) 164 for exchanging a call or the like, and a central control unit (CC) 165 for controlling the entire apparatus. The CC 165 has a built-in memory (not shown) that stores a control program, various setting data, and the like.

FIG. 2 shows a radio base station B in this embodiment.
It is a block diagram which shows the structure of S.

The radio base station BS shown in FIG. 2 has a memory (not shown) for storing a control program, various setting data and the like.
A CPU 21 having a built-in circuit, an antenna 22, a transmission / reception common unit 23, a synthesizer 24, a transmission unit 25, a reception unit 26, a line interface 27, and a codec 28 are provided.

The CPU 21 controls the entire radio base station BS, and the antenna 22 transmits and receives radio waves. In addition, the common unit 23 is the transmission unit 2
5 and the receiving unit 26 are switched, and the synthesizer 24
Switches the frequency.

The transmission unit 25 performs down conversion, demodulation, etc., and the reception unit 26 performs QPSK encoding, orthogonal modulation, up conversion, power amplification, etc. Further, the line interface 27 communicates with the above-mentioned communication control device CE. The codec 28 is, for example, ADPC.
A reception electric field intensity signal is input from the reception unit 26 to the CPU 21 including an M codec and the like.

FIG. 3 shows a wireless terminal PS in this embodiment.
FIG. 3 is a block diagram showing the configuration of FIG. The wireless terminal P shown in FIG.
In S, a CPU 31 having a built-in memory (not shown) for storing a control program, various setting data, etc., an antenna 32, a transmission / reception common unit 33, a synthesizer 34, a transmission unit 3
5, a receiver 36, a codec 37, a microphone 38, a speaker 39, and a key / display 30 are provided.

The CPU 31 controls the entire wireless terminal PS, the antenna 32 is used for transmitting and receiving radio waves, and the common unit 33 switches between the transmitting unit 35 and the receiving unit 36. Further, the synthesizer 34 switches the frequency.

The transmitting unit 35 performs down conversion, demodulation, etc., and the receiving unit 36 performs QPSK encoding, orthogonal modulation, up conversion, power amplification, etc. The codec 37 includes, for example, an ADPCM codec and the like, and
A received electric field strength signal is input to the PU 31 from the reception unit 36.

FIG. 4 is a diagram conceptually showing the connection between terminals (PS) in the digital cordless telephone system according to this embodiment. In the figure, reference numerals 1051 to 1
053 is a wireless terminal for a digital cordless telephone (P
S1 to PS3), and if they are in the same wireless service area, the terminal (P
S) Communication can be performed by connecting wireless lines to each other.

In the wireless communication between these terminals (PS), the calling side detects an idle channel without transmitting a control signal transmission channel, transmits connection request information for a prescribed time, and waits for the wireless terminal. The (PS) scans the channel, receives this connection request information, and starts communication.

FIG. 5 is a diagram showing a structure of an identification code for connecting terminals (PS) in the digital cordless telephone system. In the figure, a system call code 50
1 is a wireless terminal for a digital cordless telephone (P
When S) is used in a private mode such as communication within the same system, it is a call code of 29-bit configuration that is given to each system, and the interconnection between terminals (PS) is this system call code. Can be done between terminals that match.

The PS call number 502 is a logical number which is effective only when the terminals (PS) are interconnected, and has a 13-bit structure. This PS call number 502 corresponds to the terminal (PS) extension number released by the user. The PS call code 503 is a 28-bit code assigned to each terminal (PS).

Of these code configuration data, different priority monitored speech channels are set for each PS calling number 502. Since different PS call numbers are assigned to individual terminals in the same system, different priority monitored speech channels are set for each terminal.

This priority monitored communication channel is
This is a channel that is preferentially searched when searching for a channel used for communication between wireless terminals (PS). The call channel for priority monitoring is set to PS call number 50
It is set by a predetermined method by multiplying the function defined in 2 and assigning a channel for each PS calling number.

In this embodiment, as shown in FIG.
01 channel, 31 channel, 61 channel, P
In S2, 02 channel, 32 channel, 62 channel,
In PS3, 03 channels, 33 channels, and 63 channels are set as priority monitored speech channels.

FIG. 6 shows a terminal (PS) in this embodiment.
A channel scan pattern for each is shown, and reference numeral 300 is
The monitoring period of the public control channel of the control channel used when the wireless terminal PS accommodated in the wireless base station BS1 communicates using the wireless base station BS4 connected via the public line, 301 is the same. The monitoring period of the private control channel of the control channel used for communication via the base station in the system, 302 is the monitoring period of the priority monitoring target communication channel group, and 303 is the communication channel other than the priority monitoring target communication channel. This is a monitoring period of a call channel group not subject to priority monitoring of the call channel.

The scan control for realizing the scan pattern shown in FIG. 6 will be described.

FIG. 7 is a flowchart showing the scan control procedure in the digital cordless telephone system according to this embodiment. In the present embodiment, the type of the channel monitored up to the present time is determined by using the time-up of a monitor timer (not shown) that counts the channel monitoring period as a trigger.

In step S701 of FIG. 7, it is determined whether or not the public control channel is being monitored,
If it is determined that the public control channel is being monitored, the subsequent monitoring target channel is set as the private control channel, and the clock timer for the private control channel monitor time is started (step S702).

In step S701, it is determined that the public control channel is not monitored, and step S703 is performed.
If it is determined that the self-employed control channel is being monitored, the channel to be monitored thereafter is set to the call channel according to the scan request status, and the clock timer for the call channel monitor time is started (step S7).
04).

On the other hand, if the monitoring target is neither the public control channel nor the private control channel, it is determined that the communication channel is being monitored, and it is determined in step S705 whether the monitor channel is a priority non-monitored communication channel. To determine. If it is determined that the monitor channel is a communication channel not subject to priority monitoring, step S
At 706, a request for setting the next call channel monitor as a priority monitor target call channel is set.

However, when the monitor channel is the priority monitor target communication channel, it is determined whether or not the monitor of the priority monitor target communication channel has completed one scan cycle in this monitor (step S707). If it is determined that one scan cycle has ended, the following step S70
In step 8, a request for setting the next call channel monitor as a call channel not subject to priority monitoring is set.

Here, one scan cycle means a period until all the priority monitored speech channels are completely monitored. For example, as shown in FIG. 6, the wireless terminal PS
In case of 1, 01 of priority monitoring target channel, 3
When one channel and 61 channels are all monitored, one scan cycle ends, and the next call channel is monitored as a call channel not subject to priority monitoring.

As described above, after monitoring the public control channel and the private control channel, one channel is monitored. When monitoring this channel, the priority monitored channel is prioritized and prioritized. When the monitored call channels are completely monitored, the priority monitored non-call channels are monitored.

If it is determined that one scan cycle has not ended, the above-described request is not set in order to continue the monitoring of the priority monitoring target speech channel next time (step S707).

After completion of the above-mentioned call channel monitor judgment (steps S705 to S708), in step S709,
The monitoring target channel is set as the public control channel, and the public control channel monitoring time counting timer is started.

FIG. 8 is a flowchart showing a processing procedure for determining a channel to be used at the time of a call operation in the wireless terminal (PS) for digital cordless telephone according to this embodiment.

In FIG. 8, in step S801, first, the connection destination is discriminated from the input information, and step S80
In step 2, it is determined whether or not the connection target (current connection) is a mutual connection between wireless terminals. Then, if it is determined that the interconnection is not established, the call control signal is transmitted using the control channel (private or public) according to the terminal mode (step S803).

On the other hand, when it is determined in step S802 that the connection target is the interconnection between wireless terminals, when the PS monitoring number 502 of the partner shown in FIG. The priority monitored channel is calculated based on the setting method (step S80).
4). Then, in step S805, it is confirmed whether or not the priority monitoring target speech channel is available.

If it is confirmed in step S805 that the priority monitoring target communication channel is empty, in step S806, a call control signal is transmitted on the priority monitoring target communication channel whose availability is confirmed. However, if it is not possible to confirm that the priority monitoring target speech channel is free, in step S807, a call signal is transmitted on the free priority monitoring non-target speech channel.

If it is determined in step S805 that the priority monitoring target call channel is not vacant for a predetermined number of times or more, the channel is excluded from the priority monitor target call channels, and the next monitor excludes the priority monitor target call channel. By this, the connection processing time at the time of wireless terminal interconnection is further shortened.

As described above, according to this embodiment, the wireless terminal (PS) for digital cordless telephone is used.
When making a terminal-to-terminal interconnection (PS-to-PS interconnection), the call-originating terminal transmits the call-originating signal by preferentially using the priority-monitored speech channel that is frequently monitored by the destination terminal Thus, there is an effect that the connection processing time required for mutual connection between wireless terminals can be shortened.

In the above embodiment, the digital cordless telephone system is taken as an example of the wireless communication system, but the present invention is not limited to this, and for example, digital cellular (digital car telephone), DECT (Digital).
European Cordless Telephone) and PCS (Personal Com
TDD (Time Division Duple) such as munication system
x), and may be applied to interconnection between terminals in a digital cordless telephone system that employs the TDMA (Time Division Multiple Access) method. [Second Embodiment] The second embodiment of the present invention will be described below.

FIG. 9 is a diagram showing the configuration of a digital cordless telephone according to the second embodiment of the present invention. In the figure, reference numeral 1102 denotes an IC card in which a wireless identification code to be attached to a digital cordless telephone terminal (PS) 1101 is written and which does not require backup by a battery.

FIG. 10 is a block diagram showing the internal arrangement of a digital cordless telephone terminal according to the second embodiment. In the figure, reference numeral 301 denotes an IC card interface, which is an IC card 3 inserted from the outside of the terminal.
It is an interface for 02. A wireless identification code is written in the IC card 302. In addition,
The other parts are the same as those of the digital cordless telephone terminal according to the first embodiment shown in FIG. 3, and therefore their explanation is omitted here.

In this embodiment, the digital cordless telephone terminal shown in FIGS. 9 and 10 is used in the system according to the first embodiment. An IC card inserted into a digital cordless telephone terminal has a PS calling number which is different for each IC card.

In the digital cordless telephone terminals shown in FIGS. 9 and 10, for example, due to some cause such as radio wave interference, connection on the priority monitored speech channel cannot be performed well, or if there is no vacancy, it is confirmed. Key/
The display 30 and the speaker 39 notify the user. Therefore, when the user receives this notification, he / she can replace the IC card with another IC card, and the digital cordless telephone terminal will own it.
The S calling number will be changed, and the priority monitored speech channel will also be changed.

With such a structure, radio waves can be used more efficiently. [Third Embodiment] The third embodiment of the present invention will be described below.

The third embodiment will be described as another example of use of the digital cordless telephone terminal according to the second embodiment.

FIG. 11 is a diagram showing a system configuration of a digital cordless telephone system according to the third embodiment. In the figure, 1101 is a digital cordless telephone terminal (PS), and 1102 is an IC card mounted on the digital cordless telephone terminal (PS) 1101 in which a wireless identification code is written and backup by a battery is unnecessary. Is. Further, 1103 and 1104 are wireless base stations for digital cordless telephones, the wireless base station 1103 is provided by the communication carrier A, and the wireless base station 1104 is provided by the communication carrier B.

The configuration of the digital cordless telephone terminal shown in FIG. 11 is similar to that of the digital cordless telephone terminal according to the second embodiment, and the radio base station 1
The configurations of 103 and 1104 are the same as those of the radio base station according to the first embodiment, and therefore description thereof will be omitted.

12 and 13 are terminals (P) in the digital cordless telephone system according to the present embodiment.
It is a figure which shows the structure of the identification code of S). Specifically, FIG. 12 shows the structure of the private identification code, which includes a system call code 121, an additional ID 122, and a PS call code 123.

FIG. 13 shows the structure of the public identification code. The business identification code 124, the general calling area number 12
5, the additional ID 126, and the PS call code 123.

Although the same wireless medium is used in the wireless base station of the digital cordless telephone shown in FIG. 11, as shown in the same figure, since the telecommunications carriers that provide the services are different, here, FIG. Identification code 124 shown in
The values of are different. Further, in order to allow the wireless connection between the wireless base station 1103 (communication carrier A) of the digital cordless telephone and the wireless base station 1104 (communication carrier B) of the digital cordless telephone, this carrier identification code 124 is used. It is necessary to switch if necessary.

Therefore, the digital signal according to the present embodiment
The setting of the wireless identification code in the digital cordless telephone terminal (PS) of the cordless telephone system will be described.

FIG. 14 is a flowchart showing the procedure for setting the wireless identification code in the digital cordless telephone terminal (PS) of the digital cordless telephone system according to this embodiment. In step S1401 of the figure, the IC card 1 is added to the digital cordless telephone terminal (PS).
It is judged whether 102 is set or not, and the IC
If the card 1102 is not set, the operation of the wireless processing is prohibited (step S1404).

However, if it is determined that the IC card 1102 is set, then in step S1402,
The wireless identification code is read from the IC card, and in the subsequent step S1403, the operation of the wireless system is permitted.

As described above, according to the present embodiment, the I code in which the wireless identification code to be set in the wireless terminal is stored.
By replacing the C card and switching between various wireless identification codes corresponding to a plurality of wireless communication networks with different operator identification codes, a complicated procedure for storing the wireless identification code in a storage medium inside the terminal is not required. Furthermore, the wireless terminal and the medium in which the wireless identification information is recorded can be managed independently, and mutual access between a plurality of wireless communication networks is possible.

The end user side does not need to write the wireless identification code, and the wireless identification code can be assigned to each user.

In the second and third embodiments described above, the digital cordless telephone system is used as an example of the wireless communication system, but the present invention is not limited to this. For example, the digital cellular ( Digital car phone), TECT (Time Division of DECT, PCS, etc.)
Duplex), TDMA (Time Division Multiple Access)
It may be applied to a digital cordless telephone system that performs

Further, in the second and third embodiments described above, the IC card is used as the non-volatile storage medium, but other non-volatile storage media such as a magneto-optical card and a magnetic card may be used. Good.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0063]

As described above, according to the present invention,
By preferentially confirming the vacant state of a specific communication channel and connecting the wireless line, the connection processing time required for mutual connection between wireless terminals can be shortened.

Further, according to another invention, by reading the identification code from the externally added storage medium and switching the identification code based on the read identification code, mutual access can be made between a plurality of wireless communication networks. .

[0065]

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a digital cordless telephone system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an internal configuration of a radio base station according to the first embodiment.

FIG. 3 is a diagram showing an internal configuration of a wireless terminal according to the first embodiment.

FIG. 4 is a diagram conceptually showing wireless terminal connection according to the first embodiment.

FIG. 5 is a diagram showing a configuration of an identification code for connection between wireless terminals.

FIG. 6 is a diagram showing a channel scan pattern of a wireless terminal.

FIG. 7 is a flowchart showing a scan control procedure in the wireless terminal according to the first embodiment.

FIG. 8 is a flowchart showing a used channel determination processing procedure at the time of a call operation in the wireless terminal according to the first embodiment.

FIG. 9 is a diagram showing a configuration of a digital cordless telephone system according to a second embodiment.

FIG. 10 is a diagram showing an internal configuration of a wireless terminal according to a second embodiment.

FIG. 11 is a diagram showing a system configuration of a digital cordless telephone system according to a third embodiment.

FIG. 12 is a diagram showing a configuration of a personal-use identification code of a wireless terminal according to a third embodiment.

FIG. 13 is a diagram showing a configuration of a public identification code of a wireless terminal according to a third embodiment.

FIG. 14 is a flowchart showing a procedure for setting a wireless identification code of a wireless terminal according to the third embodiment.

[Explanation of symbols]

101, 102, 103, 104 Wireless base station 105 Wireless terminal (PS) 106 Communication control device (CE) 161, 162, 163 Interface 164 Exchange switch (SW) 165 Central control unit (CC) 170 Public network 180 Telephone 302, 1102 IC card 1103, 1104 Wireless base station for digital cordless telephone system

Claims (30)

[Claims] 1. A plurality of wireless communication terminals within a wireless communication area, and a wireless base station accommodating the plurality of wireless communication terminals, wherein the plurality of wireless communication terminals perform communication via the wireless base stations. In this case, in a wireless communication system that performs communication using a control channel and a communication channel, a communication unit that communicates with another wireless communication terminal using the communication channel without using the control channel, and the communication unit. Setting means for setting at least one specific communication channel from among a plurality of communication channels based on the communication result in the above, confirmation means for preferentially confirming the idle state of the specific communication channel, and the confirmation A wireless communication system comprising: a connection unit for connecting a wireless line to a partner wireless communication terminal according to a confirmation result of the unit. 2. The wireless communication system according to claim 1, wherein the confirmation unit confirms the specific communication channel of the partner wireless communication terminal. 3. The wireless communication system according to claim 1, wherein the setting unit sets the specific communication channel for each of the wireless communication terminals. 4. The wireless communication system according to claim 3, wherein the setting unit sets the specific communication channel according to an identification code assigned to each of the wireless communication terminals. 5. The confirmation unit excludes the specific communication channel from the confirmation targets when it is confirmed that the specific communication channel is not in the empty state even after the confirmation of the empty state is performed a predetermined number of times. Claim 1 characterized by the above.
The wireless communication system according to. 6. The TDD (Time
Division Duplex), TDMA (Time Division Multiple)
The wireless communication system according to claim 1, wherein communication is performed by an Access) -TDD method. 7. A wireless communication system comprising a wireless communication terminal having an identification code and a wireless base station accommodating the wireless communication terminal based on the identification code, wherein a storage medium storing the identification code is externally provided. A wireless communication system comprising: a plug-in means for inserting from the storage medium; a reading means for reading the identification code in the storage medium inserted by the inserting means; and an output means for wirelessly outputting the read identification code. . 8. The wireless communication system according to claim 7, wherein the identification code is stored in a non-volatile storage medium. 9. The wireless communication system according to claim 8, wherein the nonvolatile storage medium includes at least an IC card, a magneto-optical card, and a magnetic card. 10. Communication means for communicating with another communication device via a communication channel without using a control channel, and at least one of a plurality of communication channels based on a communication result of the communication means. Setting means for setting the communication channel, confirmation means for preferentially confirming the vacant state of the specific communication channel, and connection between the wireless communication terminal and the wireless line according to the confirmation result by the confirmation means. A wireless communication device comprising: a connecting means for performing the connection. 11. The wireless communication device according to claim 10, wherein the confirmation unit confirms the specific communication channel of the partner communication device. 12. The wireless communication device according to claim 10, wherein the setting unit sets the specific communication channel for each of the wireless communication devices. 13. The wireless communication device according to claim 12, wherein the setting unit sets the specific communication channel according to an identification code assigned to each of the wireless communication devices. 14. The confirmation unit excludes the specific communication channel from the confirmation targets when it is confirmed that the specific communication channel is not in the free state even after the confirmation of the free state is performed a predetermined number of times. The wireless communication device according to claim 10, wherein: 15. The wireless communication apparatus is a TDD (Time Di
vision Duplex), TDMA (Time Division Multiple Ac)
11. The wireless communication device according to claim 10, wherein communication is performed by a cess) -TDD method. 16. An inserting unit for inserting a storage medium storing an identification code from the outside, a reading unit for reading the identification code of the storage medium inserted by the inserting unit, and a wireless output of the read identification code. A wireless communication device. 17. The wireless communication device according to claim 16, wherein the identification code is stored in a non-volatile storage medium. 18. The wireless communication device according to claim 17, wherein the nonvolatile storage medium includes at least an IC card, a magneto-optical card, and a magnetic card. 19. A plurality of wireless communication terminals within a wireless communication area, and a wireless base station accommodating the plurality of wireless communication terminals, wherein the plurality of wireless communication terminals perform communication via the wireless base stations. At this time, in a communication method of a wireless communication system for performing communication using a control channel and a communication channel, a communication step of communicating with another wireless communication terminal using the communication channel without using the control channel, A setting step of setting at least one specific communication channel from a plurality of communication channels based on a communication result in the communication step; and a confirmation step of preferentially confirming an idle state of the specific communication channel. And a connecting step of connecting a wireless line to a partner wireless communication terminal according to a result of the checking in the checking step. 20. The communication method according to claim 19, wherein the confirming step confirms the specific communication channel of the partner wireless communication terminal. 21. The communication method according to claim 19, wherein the setting step sets the specific communication channel for each of the wireless communication terminals. 22. The communication method according to claim 21, wherein in the setting step, the specific communication channel is set according to an identification code assigned to each of the wireless communication terminals. 23. The confirmation step excludes the specific communication channel from the confirmation targets when it is confirmed that the specific communication channel is not in the free state even after the confirmation of the free state is performed a predetermined number of times. 20. The communication method according to claim 19, wherein: 24. A communication method of a wireless communication system comprising a wireless communication terminal having an identification code and a wireless base station accommodating the wireless communication terminal based on the identification code, wherein the identification code is stored. A communication method comprising: a step of inserting a medium from the outside; a reading step of reading an identification code in the inserted storage medium; and an output step of outputting the read identification code wirelessly. 25. A communication step of communicating with another communication device via a communication channel without using a control channel, and at least one of a plurality of communication channels is identified based on a communication result in the communication step. Setting step for setting the communication channel of, a confirmation step for preferentially confirming the idle state of the specific communication channel, and a connection between the partner wireless communication terminal and the wireless line according to the confirmation result in the confirmation step. A communication method comprising a connecting step to be performed. 26. The communication method according to claim 25, wherein the confirmation step confirms the specific communication channel of the partner communication device. 27. The communication method according to claim 25, wherein the setting step sets the specific communication channel for each of the wireless communication devices. 28. The communication method according to claim 27, wherein in the setting step, the specific communication channel is set according to an identification code assigned to each of the wireless communication devices. 29. The confirmation step excludes the specific communication channel from the confirmation target when it is confirmed that the specific communication channel is not in the free state even after the confirmation of the free state is performed a predetermined number of times. 26. The communication method according to claim 25, wherein: 30. A communication method comprising inserting a storage medium storing an identification code from the outside, reading the identification code of the inserted storage medium, and then outputting the read wirelessly.