JPH1049456A - Data transmission control system for radio connection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm the using state, etc., of the printer of a print server at the client side before a radio link is established between a client and a server in a print server system that is constructed by means of a cordless telephone system. SOLUTION: In a master unit system, it's decided whether the prepared peripheral devices are available or not (S101, S104 to S105). If the peripheral devices are available, a superframe is transmitted via one (channel 12) of both control channels 12 and 18 (S106). If the peripheral devices are not available, the superframe is transmitted via the other channel 18 (S102). Thus, the superframe is transmitted (S103). In a slave unit system, it's decided whether a superframe addressed to its own station is transmitted or not via a channel 12 or 18 (S201, S202, S205, S206). Based on this decision result, it's decided whether the peripheral devices are available or not (S203, S207).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention provides a function of a base unit of a cordless telephone apparatus in, for example, a print server, and a function of a slave unit in each of a plurality of clients.
The present invention relates to wireless data transmission control technology applicable to a cordless client-server system that transfers print data from a client to a print server via a slave unit and a master unit for printing, and particularly relates to a master unit on the slave unit side. The present invention relates to a data transmission control method for a wireless connection system suitable for efficiently detecting an operation state of a machine-side system.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. Hei 4
No. 129458 ("wireless telephone device"). In this technique, when the power of the slave unit is turned on, the slave unit requests the master unit to transmit information regarding the usage status of the master unit, and in response to the request, the information transmitted from the master unit is transmitted to the slave unit. Based on this information, the child device displays the status of use of the answering machine function of the parent device on the basis of this information. However, in this technique, a complicated exchange such as a request for transmission of information from the slave to the master is necessary, and
Only after establishing a wireless link between the child device and the parent device, the child device cannot confirm the usage status of the parent device.

Further, in a cordless telephone device, for example, the paragraph number “000” of JP-A-7-75166 is used.
As described in “2” to “0005”, a communication protocol control including a control channel control and a subsequent communication channel control is performed. In this control channel control, a broadcast channel (a BCCH, a slot having information on the configuration of a superframe) is transmitted from a parent device to a child device in accordance with its superframe (consisting of a plurality of slots having different functions). The slave receives this BCCH, and then waits for a PCH (slot having information necessary for an incoming call) sent from the master.

[0004] Upon receiving the PCH, the handset shifts to a normal communication control sequence for calling and receiving calls,
A CH (information for individually requesting the establishment of a communication channel, that is, a slot having a “link establishment request”) is transmitted to the master unit. The master unit receiving this uplink SCCH,
At a time position according to the superframe structure, a downlink SCCH (a slot having information on link assignment or link rejection which is a grant for an establishment request) is transmitted to the slave unit. If the link is rejected, the communication is terminated. If the link is allocated, the process proceeds to communication channel control, where function information such as call setting and authentication is transmitted and received, and voice communication is performed. Thus, the control channel is exchanged between the master unit and the slave unit before the wireless link is established.

[0005] As described in paragraph [0008] of Japanese Patent Application Laid-Open No. 7-75166, in a cordless telephone apparatus, asynchronous interference in which control channels overlap with another adjacent base unit is avoided. For this purpose, there is a technique of transmitting two waves as a control channel. According to this technique, when a control channel of one wave overlaps a control channel of another master and causes asynchronous interference, the slave can receive another wave to avoid asynchronous interference. it can.

[0006] A technique using such a two-wave control channel is further described in JP-A-6-188823 ("cordless telephone apparatus").
In this technique, in a cordless telephone device including a plurality of master units and a plurality of slave units wirelessly connected to each master unit, in order to prevent contention for control channel confirmation and to prevent interference of control signals, One of the two control channels used in the cordless telephone device (46ch)
Group that uses only the other control channel (89c
h) is divided into groups using only
Each set is selected to form a set composed of two master units, and each set of master units is controlled so that the transmission time zone of the control signal does not overlap with the control group transmission time zone of the other master units. The transmission timings of the sets of control signals are different from each other.

However, the technique described in Japanese Patent Application Laid-Open No. 6-188823 and the technology described in Japanese Patent Application Laid-Open No. 7-75166 are described.
The technologies described in the above publications all control the time zone of the control channel, thereby increasing the efficiency of the connection between the master unit and the slave unit. As described above, when the conventional technique of detecting the operation status of the base unit side of the cordless telephone device on the slave unit side is used, for example, in a cordless print server system constructed using the cordless telephone device,
In order to know the status of the printer of the print server on the client side, the client side requests the server side to transmit information on the usage status of the printer, and in response, the server side transmits the information to the client side. Complicated exchanges are necessary.

[0008] Before establishing a wireless link between the client and the server, the client cannot know the status of the printer of the print server. as a result,
If the printer of the print server cannot be used due to a failure or during printing of data from another client, use of wasted time and wasted power consumption (radio wave) at the time of transmission. Become.

[0009]

The problem to be solved is that, in the prior art, for example, in a print server system constructed using a cordless telephone device, a wireless link is established on the client side. before,
The point is that the status of the printer of the print server cannot be confirmed. An object of the present invention is to solve the problems of the related art. For example, in a print server system or the like constructed using a cordless telephone device, a printer of the print server is out of order, or data from another client is lost. An object of the present invention is to provide a data transmission control method of a wireless connection system that can avoid useless communication time and useless power consumption when printing cannot be performed for a reason such as printing.

[0010]

In order to achieve the above object, a data transmission control method for a wireless connection system according to the present invention comprises: (1) a base unit having a base unit function (base unit 30a) of a digital cordless telephone device; Side system 30 and the functions of slave units of the digital cordless telephone device (slave units 31a, 32).
a), and the master system 30 and the slave systems 31, 3 via the functions of the master and the slave of the digital cordless telephone device.
2 is a data transmission control method for a system in which the peripheral device 2 is wirelessly connected, wherein the parent device side system 30 determines whether or not the peripheral device (printer 35) provided can be used (steps 101, 104 to 104). 105) If the peripheral device can be used, one of the two control channels (12 channels and 18 channels) used in the parent device 30a (12 channels) transmits a superframe (step 106), and the peripheral device is used. If the transmission is not possible, the super frame is transmitted on the other control channel (18 channels) (step 102) (step 103), and the slave units 31 and 32 transmit the super frame from the master unit 30 to its own station. Whether the frame has been transmitted, if so, 12 channels and 1
It is determined which of the eight control channels is being transmitted (steps 201, 202, 205,
206), based on the result of this determination,
(Step 203, step 207). Also, (2) the parent machine side system 30 transmits information indicating the operating state of the determined peripheral device (the printer 35) to the parent machine 3
When transmitting the superframe of the downlink logical control channel (LCCH) used in 0a, the control information is broadcast in the option bits of the broadcast channel (BCCH) for broadcasting the control information to the slaves 31a and 32a, and the slave is transmitted. System 3
1 and 32 determine whether or not a broadcast channel (BCCH) addressed to the own station is transmitted from the parent device side system 30 (steps 501 and 502).
(Step 503) is analyzed to determine the operating state of the peripheral device included in the parent device side system. Further, (3) the parent device side system 30 determines the operating state of each of the plurality of peripheral devices, and uses the information indicating the determined operating status of each of the plurality of peripheral devices in the function of the parent device. When transmitting the superframe of the downlink logical control channel (LCCH), the control information is broadcast in the option bits of the second system information broadcast of the broadcast channel (BCCH) for broadcasting the control information to the slave, and the slave system 31 is transmitted. , 32 determine whether or not the broadcast channel (BCCH) is being transmitted from the parent device side system 30 to its own station. If the broadcast channel (BCCH) has been transmitted, the option bit of the second system information broadcast of the broadcast channel (BCCH) is determined. Analyzing the information indicating the operating state of each of the plurality of peripheral devices included in the system, and determining the operating state of each of the plurality of peripheral devices provided in the master system. To. Also,
(4) The parent system 30 determines the operating state of each of the plurality of peripheral devices provided, and uses the information indicating the operating state of each of the determined peripheral devices in the function of the parent device. A user packet channel (USCC) that can be defined on a superframe of a downlink logical control channel (LCCH)
H), and the superframe of the user packet channel (USCCH) and the superframe of the downlink logical control channel (LCCH) are multiplexed on different control channels and transmitted. 32 determines whether or not a user packet channel (USCCH) is transmitted from the parent device side system to its own station, and if so, a plurality of peripheral devices assigned to the user packet channel (USCCH) Is read and analyzed to determine the operating state of each of a plurality of peripheral devices included in the master system. Also, (5) the parent machine side system 30 determines the operating state of each of the plurality of peripheral devices provided, and uses the information indicating the operating state of each of the determined plurality of peripheral devices in the function of the master machine. Assigned to a superframe of a user packet channel (USCCH) that can be defined on a superframe of a downlink logical control channel (LCCH).
H) and the downlink logical control channel (LCCH) superframe used in the function of the master unit,
Multiplexed and transmitted on the same control channel, the slave unit-side systems 31 and 32 determine whether or not the control channel has been transmitted from the master-side system to its own station. Reads and analyzes the information allocated to the superframe of the channel (USCCH),
The operation state of each of a plurality of peripheral devices included in the parent device side system is determined. Also, (6) the parent machine side system 30 determines the operating state of each of the plurality of peripheral devices provided, and uses the information indicating the operating state of each of the determined plurality of peripheral devices in the function of the master machine. Is converted to the value of the control channel (BCCH) interval, and the superframe of the control channel is transmitted at this interval. The slave system 31 or 32 transmits the control channel from the master system to its own station. Is determined, and if transmitted, the information indicating the operating state of each printer of the print server is analyzed on the basis of the interval value of the control channel, and a plurality of printers included in the master-side system are analyzed. The operating state of each of the peripheral devices is determined.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a system having a function of a base unit of a digital cordless telephone device includes:
For example, the operating states of peripheral devices such as printers and databases are allocated to two control channels and transmitted. If the printer is turned off and cannot be used, the super frame is transmitted at a frequency of 18 channels. If the printer is usable, the super frame is transmitted at 12 channels. The system having the function of the slave unit determines the use state of the printer of the master system based on which of the 12 channels and the 18 channels has been received as the super channel. In this way, before the wireless link is established, the slave system can know the use status of the printer of the master system.

Hereinafter, TDMA (Time Division Mutiple)
Some embodiments according to the present invention will be described in detail with reference to the drawings, using a print server system constructed using a digital cordless telephone device of the Access / time division multiple access) / TDD system as an example. FIG. 1 is a flowchart showing a first embodiment of a data transmission control method for a wireless connection system according to the present invention. FIG. 2 is a flowchart showing a main unit system that executes the data transmission control method shown in FIG. FIG. 3 is a block diagram illustrating a configuration example according to the present invention of a slave-side system that executes the data transmission control method in FIG.

In the parent system shown in FIG. 2, data received by antenna 1 is processed by radio unit 2, and data is demodulated by modulation / demodulation unit 3 and passed to communication control unit 4. After performing TDMA baseband processing, the communication control unit 4 converts the signal into an analog audio signal by an audio codec unit 5 (ADPCM: pulse code modulation) and converts the analog audio signal into a telephone line via a line interface unit (NCU: Network Control Unit) 6. 7 Note that by connecting the handset 11, a call can be made with the outside via the telephone line 7.

An operation from the key input unit 10 causes the display unit 9 and the LED 1 via the man-machine interface unit 8 to operate.
For example, various status displays including the status of the connected printer and the like are performed on the display device 3. The EEPROM 12 stores each ID information of the child device side system and the like. In the case of digital data, the communication controller 4 performs TDMA baseband processing, and then connects to a printer or the like from the parallel interface 14 via the Centronics interface 15. When a modem is connected to the parallel interface 14, a serial interface is used instead of the Centronics interface 15.

In the handset-side system shown in FIG. 3, data received by the antenna 16 is subjected to reception processing by the radio unit 17, demodulated by the modulation / demodulation unit 18, and passed to the communication control unit 19. After performing TDMA baseband processing in the communication control unit 19, the audio codec unit 20 converts the analog audio signal into an analog audio signal and reproduces the analog audio signal using the speaker 21. At the time of transmission, the sound from the microphone 22 is transmitted through the reverse path.

The operation of the key input unit 27 causes the display unit 28 and the LE
At D29, various status displays including, for example, the status of the printer of the parent machine side system are performed. The EEPROM 25 stores ID information of its own system. In the case of digital data, for example, print data is input from a personal computer connected to the Centronics interface 24 and transmitted to the communication control unit 19 via the parallel interface 23. Thereafter, the signal is modulated by the modulation / demodulation unit 18 and transmitted from the antenna 16 via the radio unit 17.

FIG. 4 is a block diagram showing an example of the configuration of a network system in which the parent device system in FIG. 2 and the child device system in FIG. 3 are wirelessly connected. Normally, the master unit system 30 and the slave unit systems 31, 32
Are the parent device 30a and the child devices 31a, 3 of the cordless telephone device.
2a. In this example, the child device side systems 31 and 3
2 are provided with personal computers 33 and 34, respectively, a printer 35 is provided in the master system 30 and wirelessly transmits print data between the master system 30 and the slave systems 31 and 32. I do. That is, the child device side system 3
1 and 32 through the slaves 31a and 32a and the master 30a,
The print data is transmitted to the parent machine side system 30.

The control operation of the master unit system 30 and slave unit systems 31, 32 constituting such a network system during data transmission according to the present invention will be described with reference to FIG. In this example, it is assumed that the use state of the printer of the master system is checked by the slave system using the PHS control channel having two waves of 12 channels and 18 channels.

First, as shown in FIG. 1A, the master system in FIG. 2 detects whether or not the power supply of the printer connected to the parallel interface 14 of its own station is turned on (step S1). 101). If it is off, it is determined that the printer cannot be used, and the control channel is set to 1
8 channels are set (step 102), and a superframe is transmitted (step 103). Step 1
If power on is detected in step 01, it is detected whether or not a printer error has occurred (step 104).

When a printer error such as a printer fault, off-line, or paper end is detected by starting the printer status line, it is similarly determined that the printer cannot be used, and the control channel is set in steps 102 and 103. Set to 18 channels and transmit a superframe. If a printer error has not occurred in step 104, it is further detected whether or not the printer is being used by another slave-side system (step 105).

If the printer is in use by another child device side system, it is determined that the printer cannot be used, and step 10
In step 2, 103, the control channel is set to 18 channels and a super frame is transmitted. If the printer is not busy in step 105, the control channel is set to 1
It is set to two channels (step 106), and a super frame is transmitted (step 103). In the parent system of this example, information indicating such a detection result is displayed on an LCD or the like (step 107).

Next, as shown in FIG. 1B, the slave system in FIG. 3 always receives the superframe transmitted from the master system in the above-described procedure. Then, the slave unit-side system first monitors whether or not there are BCCHs addressed to the own station in 12 control channels (step 201). If there is a BCCH addressed to its own station on channel 12 (step 202), the slave unit-side system determines that the printer connected to the master unit-side system is usable (step 203). The indicated information is displayed on an LCD or the like (step 20).
4).

In step 202, if there is no BCCH addressed to the own station in 12 channels, it is monitored whether or not there are BCCHs addressed to the own station in 18 control channels (step 205). B addressed to own station on channel 18
If there is a CCH (step 206), the slave unit-side system determines that the printer connected to the master unit-side system is unusable (step 207), and displays information indicating the fact on an LCD or the like. It is displayed (step 204). In step 206, the BC addressed to the own station is also assigned to channel 18.
If there is no CH, it is determined that the base station side system is out of the wireless communication area (step 208), and information indicating the fact is displayed on the LCD or the like (step 204).

As described above, in the present embodiment, the information indicating the use status of the printer of the master unit is assigned to one of the two control channels on the master unit side. Before establishing a link, it is possible to know whether or not the printer on the parent device side is available. As a result, it is possible to save power without using wasteful time and power consumption (radio waves) during useless transmission. In addition, since it is possible to perform the printing after reliably ascertaining that another slave-side system is not using the printer of the master-side system, the work efficiency is greatly improved.

In the first embodiment, although the status of use of the printer is known, the cause of the non-usability is whether the printer is being used by another slave unit side system, a paper end (no paper), etc. It is not possible to know details such as whether an error has occurred in the printer itself. The second aspect of the present invention for addressing such a problem
Will be described with reference to FIGS.

FIG. 5 is a flowchart showing a second embodiment of the data transmission control method of the wireless connection system according to the present invention. FIG. 6 is an example of a slot configuration of a broadcast channel used in the data transmission control method in FIG. FIG. 7 is an explanatory diagram showing a configuration example of a wireless channel broadcast message which is an actual data area of the broadcast channel in FIG. Broadcast channel (BCCH) shown in FIG.
Each of the 5th and 6th bit optional areas of the 8th octet (1 octet = 8 bits) in the message configuration shown in FIG.
(B), the parent machine side system sets an option bit corresponding to the detected state of the printer and sends out a super frame.

As shown in FIG. 5, the slave unit-side system constantly monitors the control channel (step 50).
1). When the BCCH addressed to the own station is received (step 502), the option bits are analyzed (step 50).
3) The corresponding printer status is displayed (step 504). As described above, in the second embodiment, by using the option bits of the broadcast message, before establishing the wireless link, not only information on whether or not the printer can be used, but also what kind of printer can be used. More detailed information such as whether or not the information is disabled due to a factor can be exchanged. Also, the parent device can display the same printer status information and directly monitor it.

However, when the number of printers connected to the parent machine side system is one, the technique of the second embodiment can sufficiently cope with it. According to the technique of the embodiment, it is not possible for the slave-side system to know the status of all printers in detail. The superframe configuration of the logical control channel (LCCH) is notified to each slave-side system as profile data by the global definition information pattern in the radio channel information broadcast message shown in FIG. By using the superframe of the logical control channel (LCCH), the above problem can be dealt with. Hereinafter, a third embodiment according to the present invention will be described with reference to FIGS.

FIG. 8 is an explanatory diagram showing an example of a superframe configuration of a logical control channel (LCCH) used in the third embodiment according to the data transmission control method of the wireless connection system of the present invention, and FIG. FIG. 10 is an explanatory diagram showing a configuration example of a second system operation information message in the broadcast information of FIG.
FIG. 10 is an explanatory diagram showing an example of assignment of option bits in the second system operation information message of FIG. In the first slot of the LCCH superframe, BCCH is always transmitted. The broadcast information of the BCCH includes information on a radio channel structure, information on a control carrier, system operation information, and second system operation information indicating the message configuration in FIG. 2 Use the option bits of the system operation information.

In this example, octets 2 to 6 (40 bits) of the option bits (43 bits) are used. Each bit assignment is shown in FIG.
That is, octet 2 is used as information of the centroport No. 1 of the parent device side system, octet 3 is used up to octet 6 such as No. 3 and 5 is transmitted to the parent device side system.
You can have up to three printer ports.

One octet (8 bits) indicates one port information, and the first bit corresponds to the number of centro ports. If the port is (hardware) in the parent system, "1"". By looking at this part (the first bit) of each octet, it is possible to know how many printers can be connected to the parent device side system. The second bit indicates whether the power of the connected printer is on. When it is on, it is "1". The third bit indicates whether the printer is being used by another slave-side system (ready / busy state). If it can be used (ready state), it is set to "1".

The fourth bit indicates whether the printer is normal or abnormal (fault). If normal, "1" is set. 5
The bit indicates whether the printer is online or offline. If the printer is offline, the bit is set to “1”. The sixth bit is
This indicates the presence or absence of paper in the printer, and is "0" if there is no paper (paper end). 7 to 8 bits are preliminary information.

The handset side system receives the BCCH addressed to its own station in accordance with the procedure described with reference to FIG.
By analyzing the option bits described in (1), the statuses of a plurality of printers connected to the parent system are acquired and displayed. As described above, according to the third embodiment, by using the option bits of the second system information notification message, a plurality of devices such as a plurality of printers connected to the parent device side system can be connected before the wireless link is established. Detailed operation status information can be exchanged, and the status of a plurality of printers and the like can be directly monitored on the slave device side and the master device side.

However, in the technology of the third embodiment, since the number of BCCHs (second system information broadcast) constituting the superframe increases, in an environment with a lot of traffic,
Need to reduce transmission time. Hereinafter, a fourth embodiment of the present invention for addressing such a problem will be described with reference to FIGS.

FIG. 11 is an explanatory diagram showing an example of a superframe configuration of a logical control channel (LCCH) used in the fourth embodiment according to the data transmission control method of the wireless connection system of the present invention. FIG. FIG. 16 is an explanatory diagram showing a slot configuration example of a superframe USCCH used in a fourth embodiment according to the data transmission control method of the wireless connection system of the present invention. As shown in FIG. 11, in this embodiment, two control channels are used, and f1 = 12 channels, f2
= 18 channels. Then, the channels of f1 and f2 are multiplexed by adding an n1offset value. f1 has a normal superframe configuration including BCCH, PCH, and SCCH, and f2 has USCCH (UsCH
er Specific Control Channel).

The slot configuration of the USCCH at f2 is as shown in FIG.
Of the two bits, 40 bits are allocated to printer information in the same manner as the contents shown in FIG. This USCCH is
Since only one frame represents printer information, a short superframe is sufficient. The status display sequence of the slave system is the same as that shown in FIG. If it is not necessary to monitor the status of the printer, power can be saved by receiving only f1.

As described above, in the fourth embodiment, since a normal super frame is transmitted by 12 channels, the control channel can be used effectively without increasing the super frame length. Further, since the slave-side system only needs to read the printer information transmitted on channel 18 only when necessary, the load on the slave-side can be reduced. Furthermore, since the superframe structure of 18 channels does not require BCCH (radio channel information broadcast), it can be simply achieved with the minimum frame structure.

As described above, in the fourth embodiment, various information of a plurality of printers of the master system can be obtained with a short superframe configuration by using two control channels. In the case of a public connection handset side system in which a control channel cannot be used, it is necessary to perform multiplexing with one control channel. Such a problem can be dealt with as a fifth embodiment of the present invention as follows.

That is, in the configuration example of superframe multiplexing shown in FIG. 11, the normal superframe and the USCCH superframe are multiplexed on one control channel with f1 = f2. In the fifth embodiment, in the slave-side system, of the two control channels,
Only one wave needs to be received, a high-speed PLL synthesizer for frequency switching is not required, and the device configuration can be simplified. If printer information is not required, printer information (USCC)
H) for the superframe. Thereby, power saving can be achieved.

However, in the fifth embodiment, it takes time to construct a super frame exclusively for printer information and multiplex control channels. Hereinafter, a sixth embodiment of the present invention for addressing such a problem will be described with reference to FIGS. FIG. 13 is an explanatory diagram showing an example of a superframe configuration of a logical control channel (LCCH) used in the sixth embodiment according to the data transmission control method of the wireless connection system of the present invention, and FIG. FIG. 11 is an explanatory diagram showing an example of assigning an interval value to a frame according to the present invention.

As shown in FIG. 13, in the sixth embodiment, the number n of TDMA frames (n) is defined as a cycle n for the parent system to intermittently transmit the LCCH slot. The number n of the TDMA frames is 1 to 1
It can be specified between 25, and for private use (indoor system), it is determined to be 12 or more. Therefore,
In the sixth embodiment, printer information is assigned to each value of the LCCH intermittent period n. As a result, the status of the printer on the parent device side can be grasped on the child device side system side without special exchange between the parent device side and the child device side.

For example, as shown in FIG. 14, an intermittent cycle n when only one printer is connected to the parent machine side system and printer information are allocated. In this example, n =
When 30, the printer is ready, when n = 31, the printer is busy (busy), when n = 32, the printer power is off, when n = 33, the printer is offline, when n = 34, the printer faults, n = In the case of 35, it is allocated as a printer paper end.

As described above, by assigning the status of the printer to the interval value "n", the slave system can know the status of the printer of the master system only by receiving the superframe. Also, even when there are a plurality of printers, by defining the meaning of each n value, the status can be known for each printer. In addition, it is not necessary to configure a super frame dedicated to printer information or multiplex control channels, thereby simplifying the device configuration. When the printer information is not needed, the information can be ignored and the control is simple. Further, coexistence with a system of a child device function having no such function is possible without performing special settings. In addition, 225 types of interval values can be set, and there is no shortage of information transmission elements.

As described above with reference to FIGS. 1 to 14, in the data transmission control method of the wireless connection system according to the present embodiment, the system having the function of the master unit of the digital cordless telephone device and the slave unit are used. Information indicating the use state of the printer of the master system is exchanged with the system having the function using the control channel. As a result, before the wireless link of the printer is established, it is possible for the slave system to know the use state of the printer of the master system.

The present invention is not limited to the embodiment described with reference to FIGS. 1 to 14 and can be variously modified without departing from the gist thereof. For example, in this embodiment, a printer server is described as an example, but the present invention can be applied to file access from a client in a file server.

[0046]

According to the present invention, in a print server system or the like constructed using a cordless telephone device, the client uses the printer of the print server before establishing a wireless link between the client and the server. It is possible to check the status and the like, to avoid unnecessary communication time and wasteful power consumption when the printer is unusable, and to improve work efficiency related to printing.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a first embodiment of a data transmission control method for a wireless connection system according to the present invention.

FIG. 2 is a block diagram showing a configuration example according to the present invention of a parent device side system that executes the data transmission control method in FIG. 1;

FIG. 3 is a block diagram showing a configuration example according to the present invention of a slave unit system that executes the data transmission control method in FIG. 1;

FIG. 4 is a block diagram showing a configuration example of a network system in which the parent device side system in FIG. 2 and the child device side system in FIG. 3 are wirelessly connected;

FIG. 5 is a flowchart showing a second embodiment according to the data transmission control method of the wireless connection system of the present invention.

FIG. 6 is an explanatory diagram showing an example of a slot configuration of a broadcast channel used in the data transmission control method in FIG. 5;

FIG. 7 is an explanatory diagram showing a configuration example of a wireless channel broadcast message which is an actual data area of a broadcast channel in FIG. 6;

FIG. 8 shows a logical control channel (LC) used in a third embodiment according to the data transmission control method of the wireless connection system of the present invention.
FIG. 4 is an explanatory diagram showing an example of a superframe configuration of (CH).

FIG. 9 is an explanatory diagram showing a configuration example of a second system operation information message in the broadcast information of the BCCH.

FIG. 10 is an explanatory diagram showing an example of assignment of option bits in the second system operation information message of FIG. 9;

FIG. 11 shows a logical control channel (L) used in the fourth embodiment of the data transmission control method for the wireless connection system according to the present invention.
FIG. 3 is an explanatory diagram illustrating an example of a superframe configuration of (CCH).

FIG. 12 shows a superframe USC used in the fourth embodiment of the data transmission control method for the wireless connection system according to the present invention.
FIG. 3 is an explanatory diagram illustrating an example of a slot configuration of a CH.

FIG. 13 shows a logical control channel (L) used in the sixth embodiment of the data transmission control method for the wireless connection system according to the present invention.
FIG. 3 is an explanatory diagram illustrating an example of a superframe configuration of (CCH).

FIG. 14 is an explanatory diagram showing an example of assigning an interval value according to the present invention to the superframe in FIG. 13;

[Explanation of symbols]

1: antenna, 2: radio section, 3: modulation / demodulation section, 4: communication control section, 5: voice codec section, 6: line interface section, 7: telephone line, 8: man-machine interface section,
9: display unit, 10: key input unit, 11: handset,
12: EEPROM, 13: LED, 14: Parallel interface, 15: Centronics interface,
16: antenna, 17: radio section, 18: modem section, 1
9: communication control unit, 20: audio codec unit, 21: speaker, 22: microphone, 23: parallel interface,
24: Centronics interface, 25: EEPR
OM, 26: man-machine interface unit, 27: key input unit, 28: display unit, 29: LED, 30: master unit side system, 31, 32: slave unit side system, 33, 34: personal computer, 35: printer.

Claims (6)

[Claims] 1. A base unit of the digital cordless telephone device, comprising: a base unit side system having a function of a base unit of the digital cordless telephone device; and a handset side system having a function of a child unit of the digital cordless telephone device. A data transmission control method for a system that wirelessly connects the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. It is determined whether or not the peripheral device can be used, and if the peripheral device can be used, one of the two control channels used in the function of the master unit is used to transmit a superframe and the peripheral device is not used. If possible, a super frame is transmitted on the other control channel, and the slave unit-side system transmits whether or not the super frame addressed to its own station is transmitted from the master side system. If so, it is determined which of the control channels is being transmitted, and based on the result of the determination, it is determined whether it is possible to use the peripheral device provided in the master system. Data transmission control method for a wireless connection system. 2. A base unit of the digital cordless telephone device, comprising: a base unit side system having a function of a base unit of the digital cordless telephone device; and a handset side system having a function of a child unit of the digital cordless telephone device. A data transmission control method for a system that wirelessly connects the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. Determine the operating state, the information indicating the operating state of the determined peripheral device, when transmitting a super frame of the downlink logical control channel used in the function of the parent device, the control information to the slave unit The slave unit-side system transmits the broadcast by incorporating it into the option bits of the broadcast channel to be broadcast, and determines whether or not the broadcast channel addressed to the own station is transmitted from the master system. If it is determined and transmitted, the information indicating the operation state of the peripheral device included in the option bit of the broadcast channel is analyzed to determine the operation state of the peripheral device included in the master system. A data transmission control method for a wireless connection system, comprising: 3. The base unit of the digital cordless telephone device, comprising: a base unit side system having a function of a base unit of the digital cordless telephone device; and a handset side system having a function of a child unit of the digital cordless telephone device. A data transmission control method for a system for wirelessly connecting the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. The operation status of each of the devices is determined, and information indicating the operation status of each of the plurality of determined peripheral devices is transmitted to the child device when transmitting the superframe of the downlink logical control channel used in the function of the master device. The slave unit-side system sends the control information from the master unit-side system to its own station by transmitting the control information in an option bit of the second system information broadcast of the broadcast channel that broadcasts the control information to the slave unit. To determine whether or not the broadcast channel has been transmitted, and if so, indicates the operating state of each of the plurality of peripheral devices included in the option bits of the second system information broadcast of the broadcast channel A data transmission control method for a wireless connection system, characterized by analyzing information to determine an operation state of each of a plurality of peripheral devices provided in the master device side system. 4. A base unit of the digital cordless telephone device, comprising: a base unit side system having a function of a base unit of the digital cordless telephone device; and a handset side system having a function of a child unit of the digital cordless telephone device. A data transmission control method for a system for wirelessly connecting the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. A user packet that can determine the operating state of each device and define information indicating the operating state of each of the determined plurality of peripheral devices on the superframe of the downlink logical control channel used in the function of the master device. A superframe of the user packet channel and a superframe of the downlink logical control channel are allocated to different control channels. The slave unit-side system determines whether or not the user packet channel is being transmitted from the master-side system to its own station. Reading and analyzing the information indicating the operating state of each of the plurality of peripheral devices assigned to the channel, and determining the operating state of each of the plurality of peripheral devices included in the master system; A data transmission control method for a wireless connection system. 5. A base unit of the digital cordless telephone unit, comprising: a base unit side system having a function of a base unit of the digital cordless telephone unit; and a slave unit side system having a function of a child unit of the digital cordless telephone unit. A data transmission control method for a system for wirelessly connecting the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. A user packet that can determine the operating state of each device and define information indicating the operating state of each of the determined plurality of peripheral devices on the superframe of the downlink logical control channel used in the function of the master device. Allocated to the super frame of the channel, the super frame of the user packet channel and the super frame of the downlink logical control channel used in the function of the master unit. Are multiplexed and transmitted on the same control channel, and the slave unit-side system determines whether the control channel is transmitted from the master unit-side system to its own station. Reading and analyzing information allocated to the superframe of the user packet channel to determine the operating state of each of a plurality of peripheral devices included in the master device side system; Transmission control method. 6. A base unit of the digital cordless telephone device, comprising: a base unit side system having a function of a base unit of the digital cordless telephone device; and a handset side system having a function of a child unit of the digital cordless telephone device. A data transmission control method for a system for wirelessly connecting the master unit side system and the slave unit side system via the function of the slave unit and the function of the slave unit. The operating state of each device is determined, and the information indicating the operating state of each of the determined peripheral devices is converted into an interval value of a control channel used in the function of the master unit. The superframe of the control channel is transmitted, and the slave unit-side system determines whether or not the control channel is being transmitted from the master unit-side system to its own station. If so, based on the interval value of the control channel, the information indicating the operation state of each printer of the print server is analyzed, and the operation state of each of the plurality of peripheral devices included in the master system is analyzed. A data transmission control method for a wireless connection system, comprising: