JP2003204579A - Radio communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication apparatus which ensures characteristics against higher sound quality, interruption and disturbance as a cordless phone system unique to a company while ensuring the connection of sound communication/data communication in a Bluetooth (BT). <P>SOLUTION: A base unit decides whether or not company identifying information transmitted from a cordless handset is specific information in connecting a line in a Bluetooth (BT) communication mode, performs communication in another radio communication standard (company's own mode) on determining that the company identifying information is the specific information, and performs the communication in a BT standard on determining that the company identifying information is not the specific information. The communication apparatus allows long-distance communication at higher sound quality with the other apparatus capable of performing cordless communication in the company's own mode using an error handling function, and sound communication at a usual sound quality in a BT data format allowing short-distance communication even when the company identifying information is not the specific information. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone device for transmitting / receiving and processing in a data format of a plurality of wireless communication standards.

[0002]

2. Description of the Related Art Recently, a device for making a wired part wireless has become widespread. For example, a personal computer and a printer are wirelessly connected. As a TDMA communication standard for this purpose, devices using a wireless communication standard called Bluetooth (BT) defined by the standardization organization Bluetooth SIG are becoming widespread. Bluetooth is standardized for the purpose of connecting a laptop computer, PDA, mobile phone, etc. without using a cable and exchanging voice and data.

Here, in a TDMA-based cordless telephone system including a plurality of cells each having one base station, a mobile station wirelessly communicating with a certain first base station is a second base station of another cordless telephone system. A method for establishing a connection with the device is disclosed in Patent Document 1, for example.

Further, a wireless base station that efficiently uses a communication channel by connecting mobile stations of a plurality of carriers with one base station and synchronizing transmission / reception frame timings between the carriers, for example, It is disclosed in Patent Document 2.

When a mobile station registered so as to be able to communicate with a certain cellular network enters the range of the cordless cellular base station, it is automatically deviated from the registration with the cellular network and registered with the cordless cellular base station. A wireless communication system that does this is disclosed in Patent Document 3, for example.

[0006]

[Patent Document 1] Japanese Patent Laid-Open No. 2000-165929

[Patent Document 2] Japanese Patent Laid-Open No. 11-8879

[Patent Document 3] Japanese Patent Publication No. 11-512913

[0007]

Since such a BT standard is a unified standard, the same signal format is used regardless of the device manufacturer. In other words, however, there is no degree of freedom in the signal format, so there are great restrictions on the improvement of communication quality and communication distance.

Therefore, a wireless communication device having both a telephone system and a Bluetooth (BT) system in a single device, and a mobile phone or a company's own cordless telephone standard telephone with a new Bluetooth standard communication function has been developed. Has been done. In the conventional technique, a Bluetooth wireless unit (BT wireless unit) and a telephone wireless unit (CDL wireless unit) are separately provided to support wireless signals of different standards. However, such a configuration leads to an increase in size of the device and an increase in cost.

[0009]

A wireless communication apparatus of the present invention is a wireless telephone apparatus that transmits and receives and processes in a data format of a plurality of wireless communication standards, and first starts communication according to the first wireless communication standard. Then, when there is a connection request from another wireless device, it is determined whether or not the business entity identification information sent from that wireless device is specific information. When the transmitted business entity identification information is specific information, communication is performed by switching to the second wireless communication standard, and when the business entity identification information is not specific information, communication is performed with the first wireless communication standard. To do.

In addition, when registering another wireless device as a communication partner with each other, first of all, a unique identification number (device-specific ID) is notified to each other, and when the other party's identification number is registered and communication is performed, Based on whether the registered ID is a specific ID or not, it is determined whether to switch to the second wireless communication standard or to perform communication with the first wireless communication standard.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A radiotelephone device according to claim 1 of the present invention has a radio section for transmitting and receiving a plurality of data formats and a connection request from another radio device in communication according to a first radio communication standard. And whether the business entity identification information sent from the other wireless device is specific information, and if the business entity identification information sent is the specific information, the second wireless communication standard is applied. It is provided with a control unit for switching and performing communication, and when the transmitted business entity identification information is not specific information, the communication is performed with the first wireless communication standard as it is.

With this configuration, for example, when the business entity identification information of the wireless telephone device of the communication partner is specific information, the data format is changed to the second wireless communication standard to enable long-distance communication with better sound quality. Telephone communication can be performed, and if the business entity identification information of the other party's wireless telephone device is not specific information, communication can be performed using a data format that enables short-distance communication with normal sound quality. This has the effect of enabling quality communication according to the business entity identification information of the wireless telephone device.

According to a third aspect of the present invention, there is provided the wireless telephone device according to the first aspect, wherein the control unit uses, as the second wireless communication standard, error detection data for performing only A) Payload error detection. The control is performed so as to select one of the first data format including B) and the second data format including error detection data for B) Payload error detection and error correction.

With this configuration, the second wireless communication standard (for example, the data format of a cordless telephone) selected when the business entity identification information of the communication partner is specific information.
In addition, the first data format or the second
Since the data format of can be selected, communication with better sound quality can be performed according to the conditions of the communication partner, and communication with different communication conditions such as sound quality, call distance, and the number of simultaneous communication can be performed by the user. It has the effect that it can be selected by.

A radio telephone device according to a fourth aspect is the radio telephone device according to the third aspect, wherein the first data format has a Payload data length equal to that of the first radio communication standard Payload. In addition, the slot interval is set to be twice that of the first wireless communication standard.

With this configuration, it is possible to perform communication at the same time as the radio telephone device, which is twice as large as that in the case of communication in the first data format. For example, the cordless communication has an effect that it is possible to communicate with twice (six) wireless telephone devices simultaneously with the Bluetooth communication.

According to a fifth aspect of the present invention, in the wireless telephone device according to the third aspect, the second data format has a data length of Payload that is half the data length of Payload of the first wireless communication standard. It is long and the slot interval is the same as the first wireless communication standard.

With this configuration, it is possible to add information such as error detection data as compared with the case of communication in the first data format, and it is possible to improve the call quality.

The cordless telephone device according to claim 6 is
In the wireless telephone device according to claim 1, the master unit control unit,
In the second wireless communication standard, by selecting one of the plurality of channel options, the transmission power can be set to be higher than that in the case of communicating in the first wireless communication standard. Is.

With this configuration, it is possible to perform communication of sound quality and distance according to the business entity identification information of the wireless telephone device of the communication partner.

A radiotelephone apparatus according to a seventh aspect is the radiotelephone apparatus according to the first aspect, which further performs at least one of transmitting and receiving the version information of the apparatus with the other radio apparatus, The control unit determines a request unit that requests business entity identification information from the other wireless device, and determines whether or not there is a reply from the other wireless device, and the business of the communication partner device when it is determined that there is a reply. A determination unit that determines whether the body identification information is specific information, and if the business entity identification information of the other wireless device is specific information, the business entity identification information of the other wireless device and the other A first memory area that stores version information of a wireless device, and if the business entity identification information of the other wireless device is not specific information, the business entity identification information of the other wireless device and the other wireless device Version information and A second memory area for storing, in which a storage unit having a.

With this configuration, the master unit has the effect of being able to reliably carry out communication of a quality according to the business entity identification information of the wireless communication device of the communication partner.

A radio telephone device according to an eighth aspect is the radio telephone device according to the first aspect, wherein the first data format is a Bluetooth data format.

With this configuration, communication is normally performed in the Bluetooth data format, and after the call path connection, communication can be performed in the data format according to the business entity identification information of the wireless telephone device of the communication partner, so that a normal cordless telephone communication function is provided. In addition to this, when a Bluetooth communication function is provided, it has an effect that it is possible to automatically determine whether it is a cordless telephone or Bluetooth communication and perform processing according to the determination result.

According to a ninth aspect of the present invention, in the wireless telephone device according to the first aspect, at least one of sending and receiving a device-specific ID is further performed between the wireless telephone device and the other wireless device. The control unit determines whether or not a predetermined code is included in a predetermined portion of the unique ID, determines whether or not a specific communication function is supported, and performs processing according to the determination result. I decided to do it.

With this configuration, the master unit control unit has a unique I
When a predetermined code is included in a predetermined portion of D and a specific communication function is supported, communication can be performed using the specific communication function, and the specific communication function is high-speed data communication. In this case, the data can be transmitted at high speed.

According to a tenth aspect of the present invention, in the wireless telephone device according to the ninth aspect, the specific communication function is a high-speed data communication function of 1 Mbps to 10 Mbps.

With this configuration, data can be transmitted from 1 Mbps to 1
It has the effect of enabling high-speed transmission in the range of 0 Mbps.

A wireless telephone device according to an eleventh aspect is the wireless telephone device according to the ninth aspect, wherein the control unit confirms a unique ID of the other wireless device and the predetermined portion. A determining unit that determines whether or not the predetermined code is included in the wireless LAN, and determines whether or not the other wireless device supports a specific function, and the unique ID.
Is a specific ID, and when the other wireless device supports a specific function, it has the unique ID and a storage unit that stores the specific function.

With this configuration, the master unit has an effect that it can surely perform communication of quality corresponding to the unique ID of the wireless device of the communication partner.

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 and FIG.
FIG. 3 is a block diagram showing a master unit and a slave unit that constitute the cordless telephone device according to the first embodiment of the present invention.

In FIGS. 1 and 2, the transmission / reception changeover switch 1 switches the signal path between the transmitting state and the receiving state. The dual mode receiver 2 performs reception in a dual mode (here, a mode corresponding to the Bluetooth standard and a mode corresponding to the company's own cordless telephone standard). The buffers 3, 14, 28 buffer the data.

The sync identifier 5 is an access code of the received data.
It is determined whether or not e matches the value (sync word) set in the internal register of the built-in correlator (not shown). For example, when a line connection request is issued from the child device, the parent device control unit 7 sets the sync word generated from the Bluetooth (BT) device address of the parent device in the internal register of the correlator. Then, when the sync word extracted from the access code of the received data matches the value set in the internal register, the master unit control unit is notified that this received data is packet data at the reception timing of the master unit. .

The Access Code is composed of a preamble, a sync word and a trailer. The preamble and trailer are fixed bit patterns, and the sync word contains the address of the master device (BT device address).
Is reflected. When there is a query for the piconet, an access code is generated using the reserved address.

The BT device address comprises a business entity code (Company ID) and a number assigned by each business entity to each device. These correspond to the vendor identifier of the MAC address and the serial number, for example. The upper bit of the BT device address is a number given to each business entity, and the lower bit is a number individually assigned by the business entity.
A predetermined group allocates and manages the high-order bit by business unit, and assigns a number upon application of the business unit.

The burst control unit 7 included in the master unit control unit 6 for controlling the entire master unit sets the communication mode based on the BT device address of the slave unit notified from the slave unit when communicating with the slave unit. judge. Specifically, by determining whether or not the child device has specific carrier identification information (vendor identifier or Company ID), the communication mode, that is, the communication in the cordless (CDL) mode, or the Bluetooth ( BT) mode is determined. CDL communication
When the mode is used, it is determined what kind of communication (data format, slot configuration, power level, channel option, etc.) should be used. Here, the determination as to whether the child device belongs to a specific business entity (same manufacturer as the parent device) is performed as follows. RAM in advance
In 34, the Company ID and the BT device address of the child device are stored in association with each other. First, the child device notifies the parent device of the BT device address of the child device. Next, the parent device is the Company that corresponds to the BT device address notified from the child device.
The ID is retrieved from the RAM 34. The Company ID is compared with a specific Company ID. Further, in the RAM 34, the BT device address of the slave unit and the communication type (type of data format, slot configuration, power level, channel option, etc.) are stored in association with each other. By extracting the communication type corresponding to the BT device address of the child device notified from the child device, it is determined what data format, slot configuration, power level, and channel option should be used for communication.

The master unit controller selects the most appropriate communication type supported by the slave unit and the master unit according to the version information of the slave unit received when registering the slave unit. As a result, the BT device address of the child device and the communication type are associated with each other. Here, the version information is stored in the RAM 34 as number information (revision number) such as Version 1.01 in order to clarify which function is supported. Even with the same wireless communication device, a function to be supported may be added and performance may be improved due to a manufacturing time, a program update, or the like. If a function is added, the version number is updated. There are three types of version information: hardware version information of the device, software version information of the device, and version information of the Bluetooth itself.
At the time of communication, it is sent to the other party at once.

For example, when the version of the slave unit is V1.01 and the version of the master unit is V1.20, the communication type is selected from the functions supported by V1.01. Further, the communication type may be selected by the setting of the user of the slave or the master. In this case, the slave unit or master unit whose communication type has been set by the user notifies the partner slave unit or master unit of the communication type that has been set, so that communication is performed according to the communication type.

Also, the communication type and the communication type are determined in the master unit control unit so as to dynamically change the number of simultaneous communication between the master unit and the slave unit, the strength of error correction, etc. by monitoring the communication traffic and radio field intensity. You may do it.

The burst control section 7 notifies the burst reception data generator 4 of a mode select signal 205 indicating which communication mode is to be used. When the communication mode is the cordless mode, the communication type such as the data format is also notified. Burst reception data generator 4
Of the dual modes divides the received data in the format of the mode notified from the master unit control section 6.

The voice error processing units 10 to 13 perform voice processing according to the attenuator level and the filter level notified from the burst control unit 7 via the burst reception data generator 4. The speech decoders 15-18 decode the received audio signal. The modem transmission unit 19 performs modem transmission.

The dual mode transmitter 20 performs transmission in the dual mode while controlling the power. Burst modulator 2
1 performs burst modulation. Burst transmission data generator 2
3 creates a packet to be transmitted according to the format of the mode notified from the burst control unit 7. The speech encoders 24-27 encode the audio signal to be transmitted. The modem receiving unit 29 receives a modem.

The CDL slot counter 30 counts clocks to determine the time position of the slot in the CDL mode. The CDL slot counter 30 outputs a count value when the notification from the sync discriminator 5 indicates a CDL signal. The BT slot counter 31 counts clocks to determine the time position of the slot in the BT mode. When the notification from the synchronization identifier 5 indicates a BT signal, the BT slot counter 31 outputs a count value.
The slot interrupter 32 instructs a slot interrupt. R
The OM 33 and the RAM 34 store data for the master unit control unit. The line control unit 35 controls the line with the outside. The antenna 36 transmits / receives data to / from the slave.

Here, the transmission / reception changeover switch 1, the dual mode receiver 2, the frequency synthesizer 8 and the dual mode transmitter 20 form a radio section. Also, the radio section and RO
The part excluding the M33, the RAM 34, and the circuit control unit 35 can be integrally configured as a baseband IC.
Alternatively, it is possible to design by selecting a plurality of the above-mentioned circuit configuration blocks and configuring them as an integrated element.

FIG. 2 shows a block diagram of a slave unit of the wireless communication device. Compared to FIG. 1 showing the configuration of the master unit, the speech encoder 24 that includes the slave unit control unit 9 that controls the entire slave unit and has one voice error processing unit 10 that processes the voice, and that encodes the voice signal. Is one. Further, the speech decoder 15 decodes the received audio signal. Further, instead of the modem transmitter 19 and the modem receiver 29, a speaker 37 is provided as an interface with the caller.
And a microphone 38 are provided, but the basic configuration is almost the same as the base unit.

An outline of the operation of the master unit will be described with reference to FIG. Received data coming from the antenna 36 is sent to the dual mode receiver 2 via the transmission / reception changeover switch 1 and received. Dual mode receiver 2
Then, the received data received according to the mode at that time is input to the burst received data generator 4 via the data buffer 3. The sync discriminator 5 is the dual mode receiver 2
Received data is input from and it is determined whether or not the Access Code of the received data matches the value set in the internal register of the built-in correlator. The result (whether or not it is an access to itself) is notified to the burst control unit 7 of the master unit control unit 6. If the notification indicates that it is an access to itself, the burst control unit 7 first notifies the burst reception data generator 4 to perform communication in the BT mode.
The burst reception data generator 4 separates the reception data in the BT mode format notified from the burst control unit 7, and deciphers the content of the received data. After that, the burst control unit 7 determines the communication mode based on the BT device address of the child device notified from the child device. When it is determined that the communication is performed in the cordless mode, the burst receiver 4 is notified to perform the communication in the cordless mode after the predetermined communication procedure, for example, after the communication path is connected.

The burst controller 7 stores the following two in the RAM 34.

A) CDL slot counter 3 at that time
0 or the count value (clock number) of the BT slot counter 31) B) Mode information indicating whether it is the CDL mode or the BT mode. For example, for certain received data, the mode select signal 205 from the sync discriminator 5 indicates BT. B if indicated
The count value of the T slot counter 31 and the information indicating the BT mode are stored in the RAM 34.

Based on the count value and the mode information stored in the RAM 34, the burst control unit 7 is a reception slot that is truly assigned to the terminal (master unit or slave unit) according to the CDL standard or the BT standard. A synchronization determination process for determining whether or not to perform is performed. That is, the burst control unit 7
The reception timing is calculated from the count values of the L slot counter 30 and the BT slot counter 31, and the CDL is further calculated.
A burst signal indicating its own reception / transmission slot is output based on the mode information of whether it is BT or BT.

The data formats of Bluetooth (BT) and cordless telephone (CDL) will be described. FIG. 5A is a format diagram showing the data format of BT. As shown in FIG. 5A, the BT data is composed of Access Code, Header and Payload.

Further, FIGS. 5B and 5C are format diagrams showing the data formats of option 1 and option 2 of CDL. Option 2 shown in FIG. 5 (c)
In, the Payload in slot format is half of option 1 (FIG. 5 (b)). Both Option 1 and Option 2 have CRC data,
In the CRC of Option 1 (Fig. 5 (b)), Payloa
Error detection of d is performed but error correction is not performed. In the CRC of option 2 (FIG. 5C), both Payload error detection and error correction are performed. If you want to increase the number of calls that can be made at the same time than the call quality, use Option 1 to communicate. If you want to ensure a call quality that is higher than the number of calls that can be made at the same time, use Option 2 to communicate. Can be selected.

As described above, according to the notification from the burst control unit 7, the burst reception data generator 4 basically receives the reception data in the data format of FIG. Divide and read the contents of the received data. Then, after the call path is connected, the burst reception data creator 4 is in the CDL mode for communication with the child device,
The received data is divided according to the data formats shown in FIGS. 5B and 5C, and the content of the received data is read. Also,
If the communication with the child device is in BT mode, continue to FIG. 5 (a).
The received data is divided according to the data format and the contents of the received data are read.

In all of FIGS. 5 (a) to 5 (c), since the Access Code has the same format, any data format can be received regardless of the mode. Therefore, it is in the wireless range of the base unit, as shown in FIG.
It is possible to receive the data of the child device which is transmitted in the data format of (c).

Radio control data 2 in CDL mode
01 is used when connecting and synchronizing. Even in the BT mode, the burst reception data generator 4 outputs the data 2
By receiving 01 and analyzing the contents of that data,
Realize message exchange at connection / synchronization.

Next, the operation of the burst reception data generator 4 will be described. As described above, the mode of the burst reception data generator 4 is set by the mode select signal 205 from the burst controller 7. Burst reception generator 4
If the received packet is in the CDL mode, the data of each field shown in FIGS. 5B and 5C is extracted from the received data at appropriate timing. In the BT mode, the data in each field of Access Code, Header, and Payload (see FIG. 5A) is taken out at an appropriate timing.

The burst reception data generator 4 sends the radio control data 201 and the radio quality data 202 to the master unit control section 6.

The burst reception data generator 4 sends the wireless quality data 202 so that the access code and the header in the Bluetooth (BT) mode (see FIG. 5A).
The burst control unit 7 is notified of the presence / absence of errors and the ratio of errors, and in the cordless telephone (CDL) mode, Access Code, Header, Payload (FIG. 5 (b), FIG. 5).
The presence / absence of an error (see (c)) and the error rate are notified. The burst control unit 7 receives the mode select signal 20
5, the mode is set in the burst reception data generator 4.

The radio quality data 202 is data representing the quality of the received pulse and the received electric field strength. For example, the preamble of CDL data (Fig. 5 (b),
The P field in FIG. 5C includes the eye data of the reception pulse generated during reception and the reception electric field strength at that time.
The quality of the received pulse is data indicating how close the duty ratio of the pulse is to 50%. These are used to switch antenna diversity and reception gain. In the BT standard, this function cannot be used because there is usually only a 4-bit preamble. However, when it is determined that the destination terminal is the in-house product based on the BT address exchanged at the time of connection, both the transmitting side and the receiving side switch to the in-house mode, and the number of bits of the preamble is added in this in-house mode. As a result, the quality of the received pulse and the received electric field strength are determined, and the antenna diversity and the receiving gain are switched as in the cordless telephone.

The burst control unit 7 also determines, based on the error item notified by the wireless quality data 202,
A weighted determination is made regarding the voice error processing at that time. Then, the attenuator level and the filter level are notified to the voice error processing units 10 to 13.

The voice error processing units 10 to 13 process the voice data according to the notification from the burst control unit 7. That is, the voice error processing units 10 to 13 perform processing such as attenuator or filter on the PCM voice data input for each slot. This process compensates for the audio signal lost due to the error and also reduces the noise that might be caused by the error.

The voice error processing units 10 to 13 constantly check spike noise by continuously monitoring the state of voice. When spike noise is detected, the attenuation of the attenuator and the characteristics of the filter are controlled. The received data from the burst received data generator 4 is the data buffer 14, the modem transmitter 19, the line controller 35.
Is output to the line via. Speech decoder 15-1
Reference numeral 8 decodes the error-processed received data (voice data) from the voice error processing units 10 to 13 and outputs it as a voice signal from the line control unit 35 to the line.

Next, the operation of transmitting the voice sent from the line from the master unit to the slave unit will be described. The voice signal from the line is input to the speech encoders 24 to 27 from the line control unit 35 of the master unit, encoded, and output to the burst transmission data creator 23 as voice data. That is, the voice data includes the line control unit 35 and the modem receiving unit 2.
9. The data is input to the burst transmission data generator 23 via the data buffer 28. At this time, the burst control unit 7
The data stored in the RAM 34, the count data of the CDL slot counter 30, and the BT slot counter 3
It is determined from the count data of 1 whether the slot to be transmitted is a cordless telephone slot or a Bluetooth slot. Then, the burst transmission data generator 23 is notified of the mode by the mode select signal 206.

The burst transmission data generator 23 inputs the radio control data 204 and also generates packet data containing voice data to be transmitted according to the notified mode format. Then, the packet data is output to the dual mode transmitter 20 via the burst modulator 21. The base unit control unit 6 controls the dual mode transmitter 20 to a transmission power according to the mode. The packet data output from the dual mode transmitter 20 is radiated as a radio signal into the air from the antenna 36 through the transmission / reception changeover switch 1. This radio signal is received by the slave unit shown in FIG. 2, for example.

The transmission output of the dual mode transmitter 20 is 100 mW maximum in the Bluetooth mode, 1000 mW in the case of a cordless telephone (when the wireless channel used is 75 or more) or 125 mW (the wireless channel used is less than 75). It is preferable that

Next, an outline of the operation of the child device will be described.
This will be described with reference to FIG. Received data received by the dual mode receiver 2 according to the mode via the transmission / reception changeover switch 1 is input to the burst received data generator 4 via the data buffer 3. The burst reception data generator 4 divides the reception data in the format of the mode notified from the burst control unit 7, and deciphers the content of the received data. The sync discriminator 5 receives the received data from the dual mode receiver 2 and determines whether or not the received data is addressed to itself based on the access code of the received data. The data format and mode discrimination between Bluetooth (BT) and cordless telephone (CDL) are as described in the description of the master unit.

The burst controller 7 sets the mode in the burst reception data generator 4 by the mode select signal 205. The burst reception data generator 4 includes a slave unit controller 9
Wireless control data 201 and wireless quality data 2
02 is output. The wireless control data 201 and the wireless quality data 203 are the same as those described in the description of the master unit. The operation of the burst reception data generator 4, the operation of the burst control unit 7, and the operation of the voice error processing unit 10 are the same as those described in the description of the master unit.

The voice error processing unit 10 processes the voice data according to the notification from the burst control unit 7. Further, the voice error processing unit 10 constantly checks spike noise and, when detecting spike noise, controls the attenuation of the attenuator and the characteristics of the filter. The reception data from the burst reception data generator 4 is output to a USB such as a personal computer via the data buffer 14. The speech decoder 15 decodes the error-processed received data (audio data) from the audio error processing unit 10 and outputs it to the speaker 37 as an audio signal.

Next, the transmission from the slave unit will be described.
The voice signal from the microphone 38 is input to the speech encoder 24, encoded, and output to the burst transmission data generator 23 as voice data. Data input from a personal computer or the like using a USB or the like is input to the burst transmission data generator 23 via the data buffer 28. At this time, similarly to the above-described transmission operation of the parent device, the burst control unit 7 determines from the data stored in the RAM 34 and the count data whether to transmit in the CDL slot or the BT slot. Then, the burst transmission data generator 23 receives the mode select signal 2
Send 06 to notify the mode. The burst transmission data creator 23 inputs the radio control data 204 and creates packet data to be sent according to the notified format of the mode. Then, the packet data is output to the dual mode transmitter 20 via the burst modulator 21. The dual mode transmitter 20 is controlled by the slave unit controller 9 to have a transmission power according to the mode.
The packet data output from the dual mode transmitter 20 is radiated as an electric wave signal from the antenna 36 through the transmission / reception changeover switch 1 into the air, and the electric wave signal is received by, for example, the master unit shown in FIG.

Next, the sequence operation between the master unit controller 6 and the slave unit controller 9 will be described with reference to FIGS. FIG. 3 is a sequence diagram showing a sequence operation between the master unit control unit 6 and the slave unit control unit 9 at the time of registration of the slave unit, and FIG. 4 is a sequence diagram showing the master unit control unit 6 and the slave unit control unit at the time of connecting the communication path. FIG. 9 is a sequence diagram showing a sequence operation with 9; Communication is performed in the Bluetooth (BT) data format when registering the child device shown in FIG. 3, and communication is performed in the BT data format at least from the first line connection request to the completion of the line connection request when the communication path is connected as shown in FIG. I do.

First, the slave unit registration procedure will be described with reference to FIG. First, before the registration request from the child device, a unique identification number (unique ID) that is uniquely assigned to the child device and the parent device in advance is used, and a data area (Payload; 5 (a)) to notify. In the example of FIG. 3, the BT device addresses are mutually notified as the identification numbers (S1, S2). The BT device address here is composed of a number (vendor identifier) given to each business entity and a number (serial number) that each business entity individually assigns to its own wireless device. The BT device address can also be used as business entity identification information.

When the pressing of the registration key (not shown) of the input unit 39 is detected, the child device control unit 9 makes a registration request to the parent device (S3). Upon receiving the registration request, the master unit control unit 6 requests the slave unit for the PIN number (S4).
Upon receiving the request for the PIN number, the child device control unit 9 notifies the parent device of the PIN number (S5). As a result, the slave unit registration in the master unit is completed, and the master unit control unit 6
The completion of registration is notified to the child device (S6). In addition, PI
The N number is a number determined in advance in the master unit. In response to the PIN number request from the base unit, when the same PIN number registered in the base unit is sent from the handset, the communication request from the handset is permitted. After that, the registered slave and master can communicate with each other. Also, connection requests from slaves that are not registered in the master are rejected.

Next, the master unit control section 6 sends a Co command to the slave unit.
Request mpany ID and version number (S7). Upon receiving this request, the child device control unit 9 returns the Company ID and the version number already stored in the child device to the parent device (S8). The parent device registers this Company ID and version number together with the BT device address. This completes the registration of the company ID of the child device.

The Company ID is a unique ID assigned to the applicant by the standards management organization and is used as business entity identification information for identifying the business entity. In the example of FIG. 3, the Company ID assigned by the Bluetooth (BT) management organization is delivered. Company ID
Is a specific Company ID (for example, the parent company
There is a company ID which is the same as the y ID) and a company ID which is not specified, and each company ID is stored in the corresponding memory area (for example, the first memory area and the second memory area).

Before the registration of the Company ID, the slave unit and the master unit have unique identification numbers (unique I
Since D) is notified to each other and the identification numbers of the other parties are recorded, it is possible to register the Company ID and the version number (software version And / or hardware version) together with the unique ID of the other party. Here, when the PIN number is requested, the other party's unique ID (BT
A device address) notification request may be made. Also, instead of requesting a PIN number, the unique I
You may make it request D.

The BT device address is composed of a number (vendor identifier) given to each business entity and a number (serial number) individually assigned by the business entity. The number given to each business entity and the Company ID may belong to different business operators or may belong to the same business operator. BT when S1 and S2 are completed
Whether or not they are the same is determined by the vendor identifier in the device address. When both indicate the same business entity, it is possible to recognize that the parent device and the slave device belong to the same business entity only by the vendor identifier. Therefore, S
Of the BT device addresses notified in 1 and S2, the number given to each business may be used as the Company ID. In this case, in S7 and S8, Co
Omit the request and reply for mpany ID, and request and reply for version information only.

Next, the line connection procedure will be described with reference to FIGS.
An explanation will be given using (b).

When the user of the child device starts a call, the call key (not shown) of the input unit 39 is pressed. When the handset controller 9 detects that the call key is pressed, the handset controller 9 communicates with the base unit in the Bluetooth (BT) data format.
A line connection request is made to the parent device (S11). In S11, the BT device address of the child device is also notified. Upon receiving the line connection request, the parent device control unit 6 starts the line connection process. When the line connection is completed, the line connection confirmation data is transmitted to the child device (S12), and the completion of the line connection request is notified (S13).

Next, the master unit control section 6 determines that the company ID of the slave unit which has requested the line connection is a specific ID obtained at the time of registration.
Or not. That is, the RAM 34 is associated with the BT device address (loaded on Payroad) of the child device notified to the parent device when the line connection request is made.
It is determined whether the Company ID stored in is a specific ID.

Here, (A) when the master unit control unit 6 determines that the ID is not a specific ID, the data format of BT (PCM of 64 kbs)
Then, a connection request for the communication path is made (S14). Then, the child device returns a communication path connection confirmation to the parent device (S15) and completes the line connection.

(B) When the master unit control unit 6 determines that the ID is a specific ID, the set one of the data formats of the cordless telephone (CDL) uses the option 1 or the option 2. To determine. The determination is performed by extracting from the RAM 34 the communication type corresponding to the BT device address of the slave device notified from the slave device, and determining whether to use the option 1 or the option 2. When the communication type is selected by the setting of the user of the child device, the child device notifies the parent device of the communication type. Then, the notified communication type is prioritized, and communication is performed according to the communication type.

(1) In the case of option 1, the same data format (64k) as that used in Bluetooth is used.
bs PCM) to request connection of the communication path (S16).
Then, the child device returns a communication path connection confirmation to the parent device in the data format (32 kbps ADPCM) of the cordless telephone option 1 shown in FIG. 5B (S17), and completes the line connection. Thereafter, communication is performed in the data format of option 1 until the call path is opened.

(2) In the case of option 2, the same data format as that used in BT (64 kbs PC
In step M18, a connection request for the communication path is issued (S18). The cordless phone option 2 data format (32 kbs ADPC) shown in FIG.
In M), the communication channel connection confirmation is returned (S15), and the line connection is completed. Option 2 until the call is released
Communicate in the data format of. In Option 2, CRC is used to detect Payload error,
Since it performs both error correction, it is superior to Option 1 in terms of call quality. In the above case, Compan
Although the y ID is used as the business entity identification information, the upper bits of the BT device address may be used as the business entity identification information instead. In that case, it is determined whether or not the particular ID is based on the upper bits of the notified Bluetooth device address.

As shown in FIG. 4, power control is also performed in the communication of options 1 and 2. Power control depends on the channel option. Channel options include channel option 1 and channel option 2. Channel option 1
Then, 75 channels out of 79 communication channels are used, and there are 4 spare channels. In channel option 2, communication channel 79
If the number of used channels is less than 75 (for example, 15 channels are used and 64 spare channels are used)
Channel). In the wireless telephone device of the present embodiment, FH-SS (Frequency Hopping Spectrum Spread)
The method is adopted. Then, it is possible to select, as a channel option, whether the number of hopping frequencies is less than 75 channels or 75 channels. The 2.4G band cordless communication standard and the like stipulate that the average transmission power of wireless signals in a certain time period in a frequency band is equal to or less than a predetermined value. If the number of channels hopping is large, the average power value can be suppressed to be low, so that it is possible to increase the transmission power (power) of the wireless signal in one channel.

In the channel option 1, the power is set to 1000 mW, which enables long distance communication.
In Channel Option 2, the power is set to 125 mW, which is slightly higher than Bluetooth's 100 mW. The time slot for communication is different between option 1 and option 2 as described below.

FIG. 6A shows a time slot configuration showing time slot allocation in the Bluetooth (BT) mode, and FIG. 6B shows a cordless telephone (CDL).
6 shows a time slot configuration showing the allocation of option 1 time slots in mode. FIG. 7 (a) is also B
FIG. 7B shows a time slot configuration showing time slot allocation in the T mode, and FIG. 7B shows a time slot configuration showing option 2 time slot allocation in the cordless telephone mode. 6 and 7, the diagonal line to the right is Down (communication from master to slave)
Indicates. FIG. 6A and FIG. 7A show communication for one child device, and show a case where transmission and reception are performed every 6 slots.

As shown in FIG. 6B, in option 1, four slave units (HS) can be registered and used. When the master unit has six speech decoders and the like, it is possible to talk between a maximum of six slave units (HS) and the master unit at the same time. In Option 1, 32 kbs ADPCM is used to perform transmission / reception every 12 slots.

FIG. 7B shows the slot configuration in the option 2 and shows the case where there are two slave units (HS). In Option 2, data is transmitted and received by ADPCM of 32 kbs, but as shown in FIGS. 5B and 5C, Payload in the slot format is half of Option 1. In Option 2, transmission and reception are performed every 6 slots. Therefore, a maximum of 3 sets of wireless communication can be performed at the same time.

As shown in FIGS. 5B and 5C, both options 1 and 2 have CRC data.
However, Option 1 detects Payload errors but does not correct errors, and Option 2 uses CRC.
Performs both payload error detection and error correction. Therefore, the option 2 can improve the call quality as compared with the option 1.

As long as communication is not duplicated at the same slot position, the master unit can talk with a plurality of slave units. For example, it is possible to communicate with four slave units by the option 1 and simultaneously communicate with another slave unit by the option 2. Communication that requires communication at the same slot position as in this embodiment has a problem of interference. Moreover, there is only one transmitter and one receiver for the base unit. Therefore, the master unit control unit 7 controls so that communication that requires duplication of slots is not performed.

FIG. 8 and FIG. 9 are functional block diagrams showing the function realizing units in the master unit control unit 6 and the slave unit control unit 9. In FIG. 8, the parent device control unit 6 includes the following function implementation unit.

Company I requesting Company ID from child device
The D request unit 61, the initialization unit 62 that initializes the master unit, the time counting unit 63 that measures time, the slave unit that determines whether or not there is a reply from the slave unit, and
Judgment unit 6 for judging whether the Company ID is a specific ID
4, counting unit 65 for counting the number of times such as the number of repetitions,
If the Company ID is a specific ID, the Compan of the child device
The y ID and the revision number of the company ID of the child device are stored in the first parent device memory area (not shown), and the company ID of the child device is stored.
Storage unit 66 that stores the company ID of the child device and the revision number of the company ID of the child device in the second parent device memory area (not shown) when the ID is not a specific ID.

In FIG. 9, the slave unit control section 9 in FIG. 9 includes the following function realizing section.

The initialization unit 71 for initializing the slave unit, the time counting unit 72 for measuring time, and whether or not there is a request for the Company ID from the master unit, and when there is a request, the Company ID requested Determination unit 73 for determining whether is a specific ID, counting unit 7 for counting the number of times such as the number of repetitions
4. If the company ID of the slave is a specific ID, the company ID of the slave and the revision number of the company ID of the slave are stored in the first slave memory area (not shown), Co
If the mpany ID is not a specific ID, the company of the child device
The storage unit 75 that stores the ID and the revision number of the company ID of the child device in the second child device memory area (not shown), Co of the child device
A transmitting unit 76 that transmits the mpany ID and the revision number of the company ID of the child device to the parent device.

Compan of the master unit and the slave unit configured in this way
y The ID registration procedure will be described with reference to FIGS. 10 and 11.

First, the company ID registration procedure in the master unit will be described with reference to the flowchart in FIG.
The Company ID requesting unit 61 of the parent device sends a Compan
y Requests ID (S21). At this time, the parent company
The ID and version number are also notified to the child device. Next, the initialization unit 62 initializes the timer of the clock unit 63 and sets the number N for calculating the timeout to zero (S2).
2).

Next, the judging section 64 judges whether or not there is a reply from the slave unit (S23, S24). When it is judged that there is a reply, the company ID in the reply message is determined.
Is determined to be a specific ID (S25, S26).

If it is a specific ID in S26, the storage unit 66 stores it in the first memory area (not shown) together with the version number as the specific Company ID (in-house mode) (S27). If the specific ID is not detected in S26, the Company ID and the version number are simply stored in the second memory area (not shown) (S).
28).

When it is determined in step S24 that there is no reply, the counting section 65 increments the number N by 1 in order to confirm whether there is a reply in the next reception slot. Further, the time counting unit 63 determines whether or not a time-out has occurred (S3
0), if not time out, return to step S23,
If it has timed out, this registration procedure is terminated.

Next, the company ID registration procedure in the slave unit will be described with reference to the flowchart of FIG.

First, the initialization section 71 initializes the timer of the clock section 63 and sets the number N to zero (S4).
1). Next, the determination unit 73 determines whether or not there is a request for the Company ID from the parent device (S42, S43). If it is determined that there is a request, then respond to the request message.
It is determined whether the Company ID (that is, the Company ID of the child device itself) is a specific ID (S44, S45).

If it is a specific ID in S45, the storage section 75 stores it in the first memory area together with the version number as a specific Company ID (S46).
Then, the company ID and the version number are sent to the transmitting unit 76.
Transmits to the parent device (S47). If the specific ID is not detected in S45, the Company ID and the version number are stored in the second memory area (S48). Then, the transmitting unit 76 transmits the Company ID and the version number to the parent device (S49). When determining in step S43 that there is no request, the counting unit 74 increments the number N by 1. The clock unit 72 determines whether or not a time-out has occurred (S3
0), if not timed out, the process returns to step S42,
If it has timed out, this registration procedure is terminated.

In this embodiment, the Company ID is requested. Here, only the version information may be requested by using the number (vendor identifier) given to each higher-order business entity from the BT device address notified in the communication procedure at the time of registration of the child device as the Company ID.

As described above, in this embodiment, when registering another wireless device as a communication partner, master device control unit 6 uses the Company ID sent from the other wireless device as the unique ID of the wireless device. And is registered in the RAM 34 in association with.

Then, when communication is started,
The wireless communication method used thereafter is switched depending on whether the Company ID is a specific ID. That is Company I
A radio signal (for example, data format) to be communicated is selected according to D. For example, when the Company ID is the specific ID, the wireless signal corresponding to the CDL is selected and the specific I
If it is not D, the radio signal corresponding to BT is selected.
In this way, the wireless communication signal according to each situation is selected.

Further, the master unit control section 6 carries out a synchronization process according to the first wireless communication standard (for example, BT). Then, when the communication path is connected to the communication partner device, if the registered company ID of the communication partner device is not a specific ID, communication is continued with the first wireless communication standard. When the company ID of the registered communication partner device is a specific ID, communication is performed by the second wireless communication standard (company-specific CDL method). As a result, for example, when the company ID of the wireless telephone device of the communication partner is a specific ID, CDL communication can be performed with a data format configured to have good sound quality and enable long-distance communication. When the company ID of the wireless telephone device of the communication partner is not a specific ID, communication is continued according to a wireless communication standard (for example, BT) capable of short-range communication with normal sound quality. In this way, quality communication according to the Company ID of the wireless telephone device of the communication partner becomes possible.

Further, as a second wireless communication standard, Payl
There is a first data format that includes error detection data that performs only oad error detection, and a second data format that includes error detection data that performs Payload error detection and error correction. The parent device control unit 6 can select any one of them. That is, the second wireless communication standard (for example, the data format of the company's own CDL method) is selected when the company ID of the wireless telephone device of the communication partner is a specific ID, but among them, the first data format is selected. Alternatively, the second data format can be selected. As a result, the Co.
Communication with sound quality corresponding to the mpany ID can be performed, and communication with different communication conditions such as sound quality, call distance, and number of simultaneous communication can be selected by the user.

Furthermore, the master unit control section 6 selects one of the plurality of channel options in the second wireless communication standard so that the transmission power is higher than that in the case of communicating in the first wireless communication standard. Can be set to. As a result, the Company I of the wireless telephone device of the communication partner
It is possible to perform communication with sound quality and distance according to D.

Further, the master unit control section 6 has the following function realizing section. : Company ID requesting unit 61 for requesting the company ID to the communication partner device, whether or not there is a reply from the communication partner device, and whether the company ID of the communication partner device when the reply is received is a specific ID Determination unit 64 for determining whether the communication partner device Company
If the ID is a specific ID, the Comp of the communication partner device
The any ID and the version information of the other party's wireless telephone device are stored in the first memory area, and the Comp.
If any ID is not a specific ID,
The storage unit 66 that stores the Company ID and the version information of the other party's wireless telephone device in the second memory area, and by having these, the parent device has a quality corresponding to the Company ID of the other party's wireless communication device. Secure communication.

Furthermore, when the BT communication function is provided in addition to the company's own CDL system communication function, since the first wireless communication standard is the BT data format, communication is normally performed in the BT data format. . And after the call path connection, the company ID of the wireless telephone device of the communication partner
The data format is automatically switched to the CDL data format according to the above. Therefore, it is possible to switch over to telephone communication with high sound quality of the original CDL system as much as possible to make a call.

Further, a plurality of data formats are prepared in the CDL system, and the data length of Payload is defined as one of the data formats, and the data length of Payload of the first wireless communication standard is used.
And the slot interval is twice the first wireless communication standard. As a result, twice as many wireless telephone devices can be simultaneously communicated as compared with the case of communication in the first wireless communication standard. That is, if this data format is used in the CDL system, it is possible to communicate with twice (six) wireless communication devices simultaneously with BT communication.

As the data format of the CDL system, the data length of Payload is the payload of the first wireless communication standard.
Of half the data length and the slot interval is the same as the first wireless communication standard. As a result, information such as error detection data can be added as compared with the case of communication in the first wireless communication standard, and the call quality can be improved.

(Embodiment 2) The configurations of a master unit and a slave unit according to the second embodiment of the present invention are similar to those of the first embodiment, as shown in FIG.
This is the configuration shown in FIG. This embodiment is the same as the first embodiment.
The operation to perform data communication is added to. In addition,
In the first embodiment, the communication format is changed by the Company
While it is based on the ID, in the present embodiment, the unique ID
The description is based on (BT device address). However, the configuration based on the Company ID as in the first embodiment is within the scope of the present invention.

Master unit control unit 6 of the master unit configured as described above
5A to FIG. 5C and FIG. 12A to FIG. 15 regarding the sequence operation between the child device and the child device control unit 9 of the child device.
An explanation will be given using (b). 12A is a sequence diagram showing a sequence operation between the master unit control unit 6 and the slave unit control unit 9 at the time of registration of the slave unit, and FIG. 12B is a sequence diagram showing a function information storage procedure. is there. FIG. 13A is a sequence diagram showing a sequence operation between the master unit control unit 6 and the slave unit control unit 9 when the communication path is connected, and FIG.
FIG. 8 is a sequence diagram showing a sequence operation between the master unit control unit 6 and the slave unit control unit 9 when the data communication path is connected. FIG. 14A is a format diagram showing the data format (data signal format) of Bluetooth (BT), and FIG. 14B is a format diagram showing the data format of option 3 of the company's original cordless telephone (CDL) system. is there. FIG. 15A is a time slot configuration diagram showing allocation of time slots in the BT mode, and FIG. 15B is a time slot configuration showing allocation of option 3 time slots (time slots for data transmission / reception) in the CDL mode. It is a format diagram.

First, the slave unit registration procedure is shown in FIG.
Will be explained. First, prior to a registration request from the child device, a unique identification number (unique ID) (BT device address in this case) uniquely assigned to the child device and the parent device in advance is used to identify the child device and the parent device. Notify each other (S61,
S62).

In FIG. 12A, the slave unit control section 9
When the depression of the registration key (not shown) of the input unit 39 is detected, a registration request is made to the parent device (S63). Upon receiving the registration request, the master unit control unit 6 requests the slave unit for the PIN number (S64). Upon receiving the request for the PIN number, the child device control unit 9 notifies the parent device of the PIN number (S65). As a result, the slave unit registration in the master unit is completed, and the master unit control unit 6 notifies the slave unit of the completion of registration (S66). The data format used in steps S61 to S66 is the data format shown in FIG. When the registration procedure is completed in step S66, it is checked whether or not the upper bit of the BT device address is a predetermined number (a number previously stored in the storage unit 66). If it is a predetermined number, the function information confirmation procedure described below is performed. The upper bits of the BT device address are numbers assigned to each business entity, and the lower bits are numbers individually assigned to each business entity. A predetermined group allocates and manages the high-order bit by business unit, and assigns a number upon application of the business unit.

Next, the function information confirmation procedure will be described. In FIG. 12B, when the registration procedure is completed, the parent device control unit 6 requests the child device for the function information of the child device (S67). The function information is, for example, information indicating whether the high-speed communication function is supported or information indicating the communication speed of the high-speed communication function. Upon receiving this request, the child device control unit 9 returns the function information already stored in the child device to the parent device (S68). The master unit registers the function information of the slave unit together with the BT device address. Next, the child device control unit 9 requests the parent device for function information of the parent device (S69). The function information is, for example, information indicating what kind of communication function is supported, information indicating the communication speed when the data communication function is supported, or the like. Upon receiving this request, the parent device control unit 6 returns the function information already stored in the parent device to the child device (S7).
0). The child device registers the function information of the parent device together with the BT device address. This completes the registration of the function information of the child device.

The data format used in steps S61 to S70 is the data format shown in FIG. Further, as described above, both the child device and the parent device recognize in advance the unique ID of the other party with whom communication is possible, so that the function information can be registered in association with the unique ID of the other party.

Next, the line connection procedure will be described with reference to FIG.
It demonstrates using FIG.5 (c) and FIG.13 (a) -FIG.15 (b).

First, the case where the master unit and the slave unit do not have a specific BT device address or the data communication function is not supported will be described. Whether or not the slave unit has the specific BT device address is determined by the burst control unit 7 of the master unit based on the received data notified from the slave unit by placing the BT device address of the slave unit in the data area. It is done by doing. This notification is given before or at the time of requesting a line connection.

As shown in FIG. 13A, the slave unit control section 9
When the pressing of the call key (not shown) of the input unit 39 is detected, the request for line connection is made to the base unit (S71).
Upon receiving the line connection request, the parent device control unit 6 transmits the line connection confirmation data to the child device (S72) and notifies the completion of the line connection request (S73). Next, the base unit control unit 6
Makes a connection request for the communication path (S74), and the slave unit control section 9 returns a communication path connection confirmation to the master unit (S75) to complete the line connection. The data format used in steps S71 to S75 is the data format shown in FIG. 13A, and the data format after step S76 is FIG. 13B.

Next, a case will be described in which the master unit and the slave unit have specific BT device addresses and support the data communication function.

As shown in FIG. 13B, the slave unit controller 9
When it is detected that the call key (not shown) of the input unit 39 is pressed, the request for line connection including the data communication connection is made to the parent device (S76). Upon receiving the line connection request, the parent device control unit 6 transmits the line connection confirmation data to the child device (S77) and notifies the completion of the line connection request (S7).
8). Next, the master unit control unit 6 makes a data communication connection request by designating the communication speed and the modulation method (S79). The child device control unit 9 makes a data communication connection request by designating the communication speed and the modulation method in reverse (S80). Upon receiving the data communication connection request, the parent device control unit 6 returns confirmation data of the data communication connection according to the communication speed and the modulation method (S81). The child device control unit 9 that has received this confirmation data also returns the confirmation data (S82).

The data format used in steps S76 to S82 is the data format shown in FIG. 14A, and the data format after step S82 is the data format shown in FIG. 14B.

FIG. 16 and FIG. 17 are functional block diagrams showing the function realizing units in the master unit control unit 6 and the slave unit control unit 9.

In FIG. 16, the master unit control section 6 has the following function realizing section. : Confirmation unit 81 for confirming the BT device address (unique ID) of the child device, determining whether the unique ID is a specific ID, and determining whether the child device supports a specific function Inquiry unit 8 for inquiring about specific functions supported by the unit 82 and the child device
3, a receiving unit 84 for receiving data from the child device, a unique I
A storage unit 85 that stores a BT device address as D and a specific function supported by the child device.

In FIG. 17, the slave unit control section 9 has the following function realizing section. : Confirmation unit 91 for confirming the BT device address (unique ID) of the master unit, determining whether the unique ID is a specific ID, and determining whether the master unit supports a specific function Unit 92, inquiry unit 93 for inquiring about a specific function supported by the base unit, receiving unit 94 for receiving data from the base unit, BT device address as a unique ID, and specific function supported by the base unit A storage unit 95 for storing

A procedure for storing the function information of the master unit and the slave unit thus configured will be described with reference to FIGS. 18 and 19. FIG. 18 is a flowchart showing the function information storage procedure in the parent machine, and FIG. 19 is a flowchart showing the function information storage procedure in the child machine. Here, the function information is information indicating whether or not data communication is possible, information indicating a communication speed in the data communication, and the like.

First, the procedure for storing function information in the master unit will be described with reference to FIG.

In FIG. 18, the confirmation unit 81 is the BT of the slave unit.
Confirm the device address (unique ID) (S9
1). The function information storage procedure in the parent device is shown in FIG.
The registration procedure will be carried out after completion. At this point, the BT device address of the child device that has performed the registration procedure is recognized by the parent device control unit.

Next, the judging section 82 judges whether or not this BT device address is a specific address by judging whether or not a predetermined code is included in a predetermined portion of the BT device address (S92). If it is determined that the address is the specific address, the inquiry unit 83 inquires about the function supported by the child device (S93). And the receiving unit 84
Receives a specific function supported by the child device (S
94). Next, the determination unit 82 determines whether or not the specific function is supported (S95).

When it is determined in step S95 that the specific function is supported, the storage unit 85 stores the Bluetooth (BT) counter number and the BT device address and the function to be supported in the RAM 34 (S96). On the other hand, if it is determined in step S95 that the specific function is not supported, the storage unit 85
Causes the RAM 34 to store the BT device address and the function to be supported together with the BT counter number (S9).
7).

When it is determined in step S92 that the address is not the specific address, the storage section 85 stores the BT device address in the RAM 34 together with the BT counter number (S98).

Next, the function information storage procedure in the slave unit will be described with reference to FIG.

In FIG. 19, the confirmation unit 91 is the BT of the base unit.
Confirm the device address (unique ID) (S10)
1). The function information storage procedure in the child device is shown in FIG.
The registration procedure is performed after the registration procedure is completed, and the BT device address of the parent machine that has performed the registration procedure at this point is recognized by the child machine controller.

Next, the judging section 92 judges whether or not this BT device address is a specific address by judging whether or not a predetermined code is included in a predetermined portion of the BT device address (S102). When determining that the address is the specific address, the inquiry unit 93 inquires about the function supported by the parent device (S103). And the receiver 9
4 receives the specific function supported by the parent device (S104). Next, the determination unit 92 determines whether or not the specific function is supported (S105).

If it is determined in step S105 that the specific function is supported, the storage unit 95 stores the B
The BT device address and the function to be supported are stored in the RAM 34 together with the T counter number (S106). On the other hand, even when it is determined in step S105 that the specific function is not supported, the storage unit 95 determines the BT device address and the function to be supported along with the BT counter number.
It is stored in the AM 34 (S107).

When it is determined in step S102 that the address is not the specific address, the storage section 95 stores the BT device address and the BT device address in the RAM 34 (S108).

As described above, the present embodiment is a radiotelephone device for transmitting / receiving and processing in a data format of a plurality of radio communication standards, and has the following configuration. 1) a wireless unit that transmits and receives in a data format of a plurality of wireless communication standards, 2) a RAM 34 that registers a unique ID of another wireless device when registering another wireless device that is a communication partner, 3) a unique ID A base unit control unit 6 that determines the communication mode based on the determination result and performs processing according to the determination result. Here, the master unit control unit 6
A radio signal (for example, data format) to be communicated is selected according to the unique ID. For example, the unique ID is specific I
If it is D, the wireless signal corresponding to the cordless telephone system unique to the company is selected, and if it is not the specific ID, the wireless signal corresponding to Bluetooth (BT) is selected. With such a configuration, it is possible to select a wireless communication signal according to each situation.

The master unit control section 6 also determines whether or not a predetermined code is included in a predetermined portion of the unique ID and whether or not a specific communication function is supported. The parent device control unit 6 performs processing according to the determination result. With this configuration, when a specific code is included in a specific part of the unique ID and a specific communication function is supported, communication can be performed using the specific communication function. Further, when the specific communication function is high-speed data communication, data can be transmitted at high speed.

Furthermore, the specific communication function is 1 Mbps to 1
With the high-speed data communication function of 0 Mbps, data can be transmitted at high speed in the range of 1 Mbps to 10 Mbps.

Further, since the master unit control section 6 has the following function realizing section, the master unit can surely perform the communication of the quality corresponding to the unique ID of the wireless device of the communication partner. That is, the parent device control unit 6 determines 4) a confirmation unit 81 that confirms the unique ID of another wireless device that is a communication partner, and 5) determines whether a predetermined code is included in a predetermined portion and Determining unit 82, 6) for determining whether the wireless device of the specific device supports a specific function has a unique ID
If D and another wireless device supports a specific function, a storage unit 85 that stores the unique ID and the specific function.
Is equipped with.

[0143]

As described above, the wireless communication device of the present invention is a wireless telephone device that transmits and receives in a data format of a plurality of wireless communication standards and processes, and first starts communication according to the first wireless communication standard. , When a connection request is made from another wireless device, it is determined whether or not the business entity identification information transmitted from that wireless device is specific information, and if the transmitted business entity identification information is specific information, The communication is performed by switching to the second wireless communication standard, and when the business entity identification information is not specific information, the communication is performed with the first wireless communication standard as it is. It is possible to transmit and receive both two types of wireless communication standard signals, and it is possible to select a wireless communication system under advantageous conditions according to the combination of the master unit and the slave unit.

[Brief description of drawings]

FIG. 1 is a block diagram showing a master unit that constitutes a cordless telephone device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a handset constituting the cordless telephone device according to the first embodiment of the present invention.

FIG. 3 is a sequence diagram showing a sequence operation between a master unit control unit and a slave unit control unit when registering a slave unit.

FIG. 4 is a sequence diagram showing a sequence operation between a master unit control unit and a slave unit control unit at the time of line connection.

5A is a format diagram showing a data format of Bluetooth (BT), FIG. 5B is a format diagram showing a data format of option 1 of a cordless telephone (CDL), and FIG. 5C is a format diagram showing a data format of option 2 of CDL.

6A is a format diagram showing a data format in BT mode, and FIG. 6B is a format diagram showing a data format of option 1 in CDL mode.

7A is a format diagram showing a data format in BT mode, and FIG. 7B is a format diagram showing a data format of option 2 in CDL mode.

FIG. 8 is a functional block diagram showing a function implementation unit in the master unit control unit.

FIG. 9 is a functional block diagram showing a function implementation unit in a slave unit control unit.

FIG. 10 is a flowchart showing a Company ID registration procedure in the parent device.

FIG. 11 is a flowchart showing a Company ID registration procedure in the child device.

FIG. 12A is a sequence diagram showing a sequence operation between a master unit control unit and a slave unit control unit at the time of registration of a slave unit, and FIG. 12B is a sequence diagram showing a function information storage procedure.

FIG. 13A is a sequence diagram showing a sequence operation between a master unit control unit and a slave unit control unit at the time of connecting a communication path, and FIG. 13B is a master unit control unit and a slave unit control unit at the time of connecting a data communication path. Diagram showing the sequence operation during

14A is a format diagram showing a BT data format (data signal format); FIG. 14B is a format diagram showing a CDL option 3 data format.

15A is a time slot configuration diagram showing allocation of time slots in BT mode, and FIG. 15B is a time slot configuration format diagram showing allocation of time slots of option 3 in CDL mode.

FIG. 16 is a functional block diagram showing a function implementation unit in a master unit control unit and a slave unit control unit.

FIG. 17 is a functional block diagram showing a function implementation unit in a master unit control unit and a slave unit control unit.

FIG. 18 is a flowchart showing a procedure for storing function information in the parent device.

FIG. 19 is a flowchart showing a procedure for storing function information in the child device.

[Explanation of symbols]

1 Transmit / receive switch 2 dual mode receiver 3 data buffer 4 Burst reception data generator 5 Synchronous discriminator 6 Base unit controller 7 Burst controller 8 frequency synthesizer 9 Remote unit control unit 10, 11, 12, 13 Voice error processing unit 14, 28 data buffers 15,16,17,18 speech decoder 19 Modem transmitter 20 dual mode transmitter 21 Burst modulator 23 Burst transmission data generator 24, 25, 26, 27 speech encoder 29 Modem receiver 30 cordless telephone slot counter 31 bluetooth slot counter 33 RAM 34 ROM 35 line control unit 36 antenna 37 speakers 38 microphones 39 Keyboard (key, input section) 40 Display (LCD) 61 Company ID Request Department 62, 71 initialization unit 63, 72 timekeeping section 64, 73, 82, 92 Judgment unit 65,74 Counter 66, 75, 85, 95 storage 76 Transmitter 81 Confirmation part 83, 93 Inquiry Department 84, 94 receiver

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04L 13/00 305C F term (reference) 5K014 BA01 BA05 FA11 5K034 AA17 DD01 EE03 FF13 HH01 HH02 HH63 5K067 AA33 BB08 BB21 BB41 CC04 DD04 DD17 EE02 EE12 EE35 KK13 KK15 5K101 LL12 MM01 QQ11

Claims (27)

[Claims] 1. A TDMA-type wireless telephone device that performs at least one of sending and receiving business entity identification information, and is capable of communicating with a wireless unit that transmits and receives a plurality of data formats according to a first wireless communication standard. When a connection request is made from another wireless device, it is determined whether the business entity identification information sent from the other wireless device is specific information, and the business entity identification information sent is specific information. And a control unit for performing communication by switching to the second wireless communication standard and performing communication with the first wireless communication standard when the transmitted business entity identification information is not specific information. Wireless telephone device. 2. The radiotelephone device according to claim 1, wherein the control unit initially performs a synchronization process according to the first radio communication standard. 3. The control unit, as the second wireless communication standard, includes: A) a first data format including error detection data for performing only Payload error detection; and B) Payload error detection and error correction. 2. The radiotelephone device according to claim 1, wherein any one of a second data format including error detection data for performing the above is selected. 4. The first data format is Payloa
4. The wireless telephone device according to claim 3, wherein the data length of d is the same as the Payload of the first wireless communication standard, and the slot interval is twice as long as the first wireless communication standard. 5. The second data format is Payloa
4. The wireless telephone device according to claim 3, wherein the data length of d is half the data length of Payload of the first wireless communication standard, and the slot interval is the same as the first wireless communication standard. 6. The control unit, in the second wireless communication standard, selects one of a plurality of channel options to transmit a higher transmission power than that in the case of communicating in the first wireless communication standard. The wireless telephone device according to claim 1, wherein the wireless telephone device is set to power. 7. A version requesting unit that sends or receives version information of the device to or from the other wireless device, and the control unit requests the business unit identification information from the other wireless device. And a determination unit that determines whether or not there is a reply from the other wireless device, and determines whether the business entity identification information of the communication partner device when the reply is determined is specific information, and the other When the business entity identification information of the wireless device is specific information, a first memory area for storing the business entity identification information of the other wireless device and the version information of the other wireless device, and the other wireless device A storage unit having a second memory area for storing the business entity identification information of the other wireless device and the version information of the other wireless device when the business entity identification information of the device is not specific information; Claim 1 provided with Wireless telephone device. 8. The wireless telephone device according to claim 1, wherein the first wireless communication standard is a Bluetooth data format. 9. The apparatus further performs at least one of sending and receiving a device unique ID with the other wireless device, and the control unit includes a predetermined code in a predetermined portion of the unique ID. The wireless telephone device according to claim 1, wherein it is determined whether or not a specific communication function is supported, and processing is performed according to the determination result. 10. The specific communication function is 1 Mbps to 1
The wireless telephone device according to claim 9, which has a high-speed data communication function of 0 Mbps. 11. The control unit determines a confirmation unit that confirms a unique ID of the other wireless device, determines whether or not the predetermined code is included in the predetermined portion, and controls the other wireless device. A determining unit that determines whether the device supports a specific function, and the unique ID when the unique ID is a specific ID and the other wireless device supports a specific function. The wireless telephone device according to claim 9, further comprising: a storage unit that stores the specific function. 12. A registration unit for registering business entity identification information of another wireless device as a communication partner, wherein the control unit requests connection from another wireless device by communication according to the first wireless communication standard. The wireless communication device according to claim 1, wherein it is determined whether or not the business entity identification information transmitted when there is a specific information based on the information registered by the registration unit. 13. The registration unit registers the version information of the other wireless telephone device in association with the business entity identification information of the other wireless device as a communication partner, and the control unit identifies the transmitted business entity identification. 13. The radio according to claim 12, wherein when the information is specific information, the communication is performed according to the second wireless communication standard, and the option is selected according to the version information registered together with the business entity identification information to perform communication. Communication device. 14. A burst reception data generator for outputting radio quality data by processing a reception signal, wherein said control means uses the radio quality data for antenna diversity in communication in the second radio communication standard. 2. The wireless communication device according to claim 1, wherein at least one of the reception gain and the reception gain is switched. 15. The wireless quality data is data representing received signal quality and received electric field strength,
15. The wireless communication device according to claim 14, further comprising eye data of a reception pulse generated during reception of the preamble during communication according to the wireless communication standard. 16. When it is determined that the destination terminal is an in-house product based on the information exchanged when connecting by the first wireless communication standard, both the transmitting side and the receiving side are switched to the second wireless communication standard, and the second 15. The wireless telephone apparatus according to claim 14, wherein the wireless quality data representing the quality of the received pulse and the received electric field strength is determined by adding the number of bits of the preamble in the communication according to the wireless communication standard. 17. A wireless telephone device for transmitting and receiving a plurality of data formats for processing, wherein when registering a wireless unit for transmitting and receiving the plurality of data formats and another wireless device as a communication partner, the other A wireless telephone device comprising: a registration unit that registers a unique ID of a wireless device; and a control unit that determines a communication mode based on the unique ID and performs processing according to the determination result. 18. The control unit determines whether or not a predetermined code is included in a predetermined portion of the unique ID, and also determines whether or not a specific communication function is supported. 18. The wireless telephone device according to claim 17, which performs processing according to a result. 19. The specific communication function is 1 Mbps to 1
19. The wireless telephone device according to claim 18, which has a high-speed data communication function of 0 Mbps. 20. The control unit determines a confirmation unit that confirms the unique ID of the other wireless device, determines whether the predetermined portion includes the predetermined code, and determines the other wireless device. A determining unit that determines whether the device supports a specific function, and the unique ID when the unique ID is a specific ID and the other wireless device supports a specific function. The wireless telephone device according to claim 18, further comprising: a storage unit that stores the specific function. 21. The control unit performs synchronization processing according to the first wireless communication standard, and identifies a business entity of the registered other wireless device when performing a call path connection with the other wireless device. If the information is not specific information, communication is continued with the first wireless communication standard, and if the registered business entity identification information of the other wireless device is specific information, communication is performed with the second wireless communication standard. The wireless telephone device according to claim 17, wherein 22. The control unit, as the second wireless communication standard, includes A) a first data format including error detection data for performing only Payload error detection, and B) Payload error detection and error correction. 22. The wireless telephone device according to claim 21, wherein any one of a second data format including error detection data to be performed is selected. 23. The first data format is Payl
23. The radiotelephone device according to claim 22, wherein the data length of oad is the same as the Payload of the first wireless communication standard, and the slot interval is twice the slot length of the first wireless communication standard. 24. The second data format is Payl
23. The wireless telephone device according to claim 22, wherein the data length of the oad is half the data length of Payload of the first wireless communication standard, and the slot interval is the same as the first wireless communication standard. 25. In the second wireless communication standard, the control unit selects one of a plurality of channel options so that the transmission power is higher than that in the case of communicating in the first wireless communication standard. 22. Setting to electric power
The described wireless telephone device. 26. The business entity identification information for sending and receiving version information to and from the other wireless device, wherein the control unit requests business entity identification information from the other wireless device. A request unit and a determination unit that determines whether or not there is a reply from the other wireless device, and determines whether the business entity identification information of the other wireless device when the reply is received is specific information. If the business entity identification information of the other wireless device is specific information, a first memory area that stores the business entity identification information of the other wireless device and the version information of the other wireless device, If the business entity identification information of the other wireless device is not specific information, it has a second memory area for storing the business entity identification information of the other wireless device and the version information of the other wireless device. And a storage unit Radio telephone apparatus according to Motomeko 17. 27. The wireless telephone device according to claim 21, wherein the first wireless communication standard is a Bluetooth (BT) data format.