JP2003318765A - Wireless communication control method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable wireless communication to be automatically switched to wireless communication using an optimal wireless communication method in a state where wireless communication is currently being performed using a wireless communication method. SOLUTION: For example, during communication with an external wireless communication device using a wireless signal transmitting / receiving unit 101, a standby operation is performed by a remaining wireless signal transmitting / receiving unit 102 under the control of a wireless communication control unit 103, so that connection setting information is obtained. As for the wireless communication method determined to be connectable to the external wireless communication device by, the optimum wireless communication method is selected by comparing the conditions with the wireless communication method during communication, and the wireless communication to the selected wireless communication method is performed. The reconfiguration of the control unit 103 itself is performed by the circuit configuration software on the storage device 105, so that the control unit 103 is automatically switched to wireless communication using the optimal wireless communication method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless LAN, for example.
The present invention relates to a wireless communication control technique in a wireless communication device used for wireless communication, such as a wireless communication device using a wireless signal transmitting / receiving unit of a certain wireless communication system even when communicating with an external wireless communication device. The present invention relates to a wireless communication control method in a software defined wireless communication device in which switching to communication is possible at any time.

[0002]

2. Description of the Related Art In recent years, with the spread of wireless communication technologies such as mobile communication, wireless LAN, and short-range wireless communication interface (for example, Bluetooth), it is possible to perform wireless communication both indoors, outdoors, and when moving. Has become. For example, in the mobile communication area, there is a distribution service of area-specific information using mobile phones and PHS, and practical experiments of information distribution service using wireless LAN etc. have started in spot areas such as restaurants, stations, and convenience stores. Moreover, it is possible to exchange information between individuals by wireless communication using Bluetooth or the like. In order to actively deal with such situations, the current situation is that technology development / research, communication environment maintenance, and the foundation of information distribution services for that purpose are being further advanced.

By the way, in such a situation, in order to perform location-free and seamless (seamless) wireless communication, a wireless communication device that can be arbitrarily connected to different wireless communication systems, and different wireless communication. The development of roaming technology between methods has become an important issue.
As means for that purpose, for example, a multi-mode wireless communication device including a plurality of wireless communication means, and a software wireless communication device that enables communication of different wireless communication systems by changing software have already been proposed so far. The reality is that

FIG. 7 shows a general basic configuration of a conventional multi-mode wireless communication device. As shown in the figure, the multi-mode wireless communication device includes wireless signal transmitting / receiving units 701 and 704.
And wireless communication control units 702 and 705, and storage devices 703 and 706 in which connection setting information and the like are stored, two wireless communication devices 700a and 700b are provided, and these wireless communication devices 700a and 700b are provided. Among them, the user selects one of the wireless communication devices according to the purpose and then uses it. The multi-mode wireless communication device in this example includes two wireless communication devices 7
It is assumed that 00a and 700b are provided, but generally, two or more may be provided. The usage and configuration of the multi-mode wireless communication device include:
For example, a plurality of expansion slots of an external information processing apparatus 707 such as a single personal computer are equipped with a plurality of wireless communication apparatuses having different wireless communication methods via external interfaces 708 and 709, or a plurality of wireless communication methods having different wireless communication methods. The wireless communication device may be configured as a combo card.

On the other hand, FIG. 8 shows a general basic configuration of a conventional software defined radio communication apparatus. As shown, the software defined radio device 800 includes a radio signal transmitter / receiver 8
01, DSP (Digital Signal Processor) and FPG
A wireless communication control unit 802 using a programmable LSI such as A (Field Programmable Gate Array) and connection setting information, and for rebuilding the programmable LSI corresponding to each of a plurality of wireless communication systems. 8 for storing the software defined radio program
03, and the circuit configuration in the wireless communication control unit 802 can be reconstructed by the user changing the software defined radio program according to the application. As a result, it is possible to deal with a plurality of wireless communication systems even though it is physically one wireless communication device. In FIG. 8, reference numerals 805 and 804 denote an external interface and an external information processing device, respectively.

[0006] As prior arts relating to the software radio communication device, there are, for example, JP-A Nos. 11-191745 and 2000-196494. Among them, in the former publication, a spread spectrum communication system used for a wireless LAN or the like and a wireless communication system other than that are provided, and the standby processing of these two wireless communication systems is performed at the same time. By selecting one or the other, the advantages and disadvantages of the respective wireless communication methods are mutually complemented. Further, in the software radio communication device, if a certain radio communication system is arbitrarily selected and the communication control circuit is reconstructed by software corresponding thereto, after that, only the standby operation of the radio communication system is possible. However, in the case of the technique disclosed in the latter publication, a search signal from an external communication device (transmitted at a constant cycle in order to confirm whether or not a communication partner of the same wireless communication system exists in the same area) When waiting for multiple wireless communication methods, one software wireless communication device performs standby for multiple wireless communication methods by periodically switching the standby operation of multiple wireless communication methods by software. .

[0007]

As described above, in the multi-mode wireless communication device, the number of wireless signal transmission / reception units, wireless communication control units and control software corresponding to each wireless communication system are always equal to the number of wireless communication systems. Since the multi-mode wireless communication device must be installed, it is not only expensive, but also unsuitable for carrying because of its large size and weight. In addition, the user must manually switch between the selection of a communicable wireless communication system and the switching of the wireless communication system, which is cumbersome.

On the other hand, in the software defined radio device disclosed in the above-mentioned Japanese Patent Laid-Open No. 11-191745, the radio communication system is selected by parallel processing of the standby operation, and after the communication is once started by circuit switching, Waiting for other wireless communication methods is not possible.

Further, in the software defined radio communication device described in the above-mentioned Japanese Patent Laid-Open No. 2000-196494, since it is a single radio communication device in terms of hardware, the standby operation of a plurality of radio communication systems is periodically performed by software. Once a communication is started after selecting a certain wireless communication system and rebuilding the wireless communication control unit, waiting for another wireless communication system until the communication by the selected wireless communication system is completed. Has become impossible.

In other words, in any of the above publications, a single wireless communication device is capable of performing a standby operation of a plurality of wireless communication systems. However, an arbitrary wireless communication system is selected and switching is performed. After that, waiting for another wireless communication method is impossible until the communication in that communication method is completed. Therefore, when the radio wave condition or the wireless communication environment changes or the user moves from place to place, it is impossible to detect and follow the change. For example, assuming that the user moves and goes out of the communication area, communication is cut off,
For the first time, the user can know that the user has moved out of the communication area.

It is an object of the present invention to select any one of two or more wireless communication systems, and to perform the wireless communication in a certain wireless communication system. An object of the present invention is to provide a wireless communication control method in which wireless communication can be constantly switched to wireless communication by an optimum wireless communication system.

Another object of the present invention is that any one wireless communication system can be selected from two or more wireless communication systems, and wireless communication is performed by a certain wireless communication system. In this state, there is provided a wireless communication control method in which the user can arbitrarily switch to a wireless communication method that is optimal for the user.

[0013]

A wireless communication control method according to the present invention comprises a first wireless signal transmitting / receiving unit compatible with a first wireless communication system and a second wireless signal compatible with a second wireless communication system. A wireless communication control method in a wireless communication device, comprising: a transceiver unit, a wireless communication control unit having a programmable LSI, and a storage unit storing a wireless program for the first and second wireless communication systems, During communication with the external wireless communication device in the first wireless communication system by the first wireless signal transmission / reception unit, a standby operation is performed by the second wireless signal transmission / reception unit, and by the second wireless signal transmission / reception unit. It is determined whether or not communication with the external wireless communication device in the second wireless communication system is possible, and if communication in the second wireless communication system is possible, with the first wireless communication system. Compare the conditions of Select good wireless communication system of conditions,
A wireless program for the selected wireless communication system is read from the storage unit, and the programmable LSI of the wireless communication control unit is reconstructed.

Further, the wireless communication control method of the present invention comprises a first wireless signal transmitting / receiving unit compatible with the first wireless communication system,
A second wireless signal transmitting / receiving unit compatible with the second wireless communication system, a wireless communication control unit having a programmable LSI,
A wireless communication control method in a wireless communication device, comprising: a storage unit storing a wireless program for the first and second wireless communication systems, wherein the first wireless communication by the first wireless signal transmission / reception unit During communication with an external wireless communication device in the wireless communication system, a standby operation is performed by the second wireless signal transmission / reception unit, and an external wireless communication device in the second wireless communication system by the second wireless signal transmission / reception unit is used. If the communication by the second wireless communication system is possible, a condition comparison with the first wireless communication system is performed, and the result of the condition comparison is determined by the external interface. It is adapted to be transferred and displayed to an external information processing apparatus via.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

The radio communication apparatus according to the present embodiment will be described. FIG. 1 shows a basic schematic configuration thereof. As shown, the wireless communication device 100 is
Radio signal transmission / reception units 101 and 102 that transmit and receive radio signals from the outside, and radio communication control unit 10 that performs signal processing of radio communication, communication control, and the like.
3 and connection setting information for each of two or more different wireless communication systems, condition setting for comparing and selecting each of one or more different wireless communication systems with the wireless communication system in communication, and two or more different types From a storage device 105 in which a software defined radio program for reconfiguring the circuit of the wireless communication control unit 103 itself according to each wireless communication system is stored, and an external interface 106 for connecting to an external information processing device or the like. It is configured.
The wireless communication control unit 103 has a built-in communication method determination unit 104 that performs state detection of received radio waves, search signal response, connection availability determination, and wireless communication method comparison / selection.
Therefore, in the embodiment of the present invention, wireless communication mainly by radio waves is assumed, but the embodiment is not necessarily limited to this, and wireless communication by infrared rays or the like may be considered in some cases.

As described above, in this example, the wireless signal transmitting / receiving units 101, 1 corresponding to the two types of wireless communication systems are used.
It is assumed that 02 is provided. Here, a little supplementary explanation will be given on the configuration of each of the above-mentioned components. First, for each of the radio signal transmitting / receiving sections 101 and 102, these are generally a signal transmitting / receiving antenna, a frequency modulator, a frequency demodulator, a filter, an oscillator, DA converter, AD
It is composed of a converter. In addition, the wireless communication control unit 103
Is generally configured using a microprocessor, DSP, FPGA, etc., but in this example, the DSP or FPGA whose control circuit itself can be reconstructed by software.
It is configured using. Further, as the storage device 105, a rewritable one such as a flash EEPROM is used.

Now, referring to FIG. 1, the basic wireless communication control processing flow in the wireless communication apparatus 100 according to the present invention will be described with reference to FIG. Radio signal transmitting / receiving unit 101, 10
Any one of the two is actually in the communication state, and the other is in the standby state (step 201). In this state, if the search signal from the external wireless communication device is received by the wireless signal transmission / reception unit in the standby state (step 202), the communication method determination unit 104 in the wireless communication control unit 103 causes the storage device to operate. The received electric wave condition is detected by using a threshold value of the electric field strength preset on the radio unit 105 (step 203). If the electric field strength exceeds the threshold value by the detection, a search response is made to the external wireless communication device (step 204), but if it is less than the threshold value, the standby state is resumed. When a connection request signal is received from the external wireless communication device as a response to the search response (step 205), the communication method determination unit 104 causes the connection setting information on the storage device 105 (for example, to restrict the connection partner). Based on 206, which includes security settings and authentication information of the connection partner, it is determined whether or not the wireless communication method can be connected (step 207). In that judgment, the connection condition matches with the other party (external wireless communication device),
If it is determined that the connection is possible, the operation proceeds to the next operation.If the connection is not possible, the external wireless communication device returns a connection not possible message and the standby state is resumed. is there.

Regarding the subsequent processing when it is determined that the connection with the other party is possible, the communication method determination unit 104 uses the comparison condition setting information 208 on the storage device 105 to determine the wireless communication method being used. The condition is compared with the wireless communication system determined to be connectable (step 209). The comparison conditions at that time include good radio wave condition, high and low communication speed, presence / absence of charge for connection service, connection charge price, etc., but users may combine them in combination depending on the environment in use. It is possible to preset and register arbitrary comparison conditions in the storage device 105 such as prioritizing. For example, by pre-registering conditions such as communication speed priority and communication cost priority, the communication method determination unit 104 can select the optimum wireless communication method based on the conditions. If the wireless communication system currently in communication is to be continued as it is according to the result of the condition comparison, it is returned to the external wireless communication device as the connection request source that the connection cannot be made, and the wireless communication system is put in the standby state again (step 210). However, when a new optimum wireless communication method is selected instead of the wireless communication method currently being used for communication, it is returned to the external wireless communication apparatus that is the connection request source that connection is possible (step 2).
11), the circuit of the wireless communication control unit 103 itself is reconstructed by the selected software wireless program corresponding to the wireless communication system (step 212).
Further, the selection result is transmitted via the external interface 106 to the external information processing device that is performing information processing using the wireless communication device 100 (step 21).
3). Based on the selection result, the external information processing apparatus incorporates the driver software for the selected wireless communication method (step 214), and uses the wireless communication apparatus 100 with the changed wireless communication method to perform the corresponding external wireless communication. It is possible to communicate with the corresponding external wireless communication device while being connected to the device (step 215).

In the above series of processing, from the reception of the search signal from the external wireless communication device (step 202) until the wireless communication system is actually changed by the comparison result of the wireless communication systems. In the wireless communication control unit 103, the communication control function for the wireless communication method used until then is maintained. Further, in this example, the communication system determination unit 1
Although 04 is built in the wireless communication control unit 103, it may be configured by a circuit component separate from the wireless communication control unit 103. Further, the storage device 105 may be built in the wireless communication control unit 103 or the communication system determination unit 104.

FIG. 3 also shows a system configuration of a wireless communication system including another configuration example of the wireless communication device and an external information processing device connected to the wireless communication device. As shown in the figure, the wireless communication device 300 is substantially the same as the wireless communication device 100 shown in FIG. 1 except that the wireless signal transmission / reception units 301 and 302 each perform detection of a radio wave state and a response to a search signal. It is configured and is connected to the external information processing device 307 via the external interface 306. Here, most notably, the external information processing device 307 is provided with a display unit 308 for displaying information to the user, and this communication unit determination unit 3 is provided in this display unit 308.
By displaying the result of the condition comparison transferred from 04, the wireless communication method that is optimal for the user is arbitrarily selected, and the wireless communication according to the selected wireless communication method is performed. is there. Therefore, the optimum wireless communication system is not always selected.

Now, referring to FIG. 3, a basic wireless communication control processing flow in the wireless communication apparatus 300 according to the present invention will be described with reference to FIG. 4, and steps 401 to 409 are shown in FIG. This is similar to steps 201 to 209. Therefore, step 410
Explaining the subsequent processing, the condition comparison result obtained in step 409 is transmitted to the external information processing device 307 via the external interface 306 (step 4).
10) is displayed on the display unit 308 (step 411). Therefore, the user can combine the conditions such as good radio wave condition, high and low communication speed, presence / absence of billing for connection service, connection charge price, etc., and prioritize, based on preset conditions. It is possible to select an arbitrary wireless communication system based on the displayed result of the condition comparison. According to the selection of the wireless communication system by the user (step 412), the external information processing device 307 is connected to the external wireless communication device by the wireless communication system (step 413).

In this example as well, the communication system determination unit 304 is built in the wireless communication control unit 303, but it may be configured by a circuit component separate from the wireless communication control unit 303. The storage device 305 may also be built in the wireless communication control unit 303 or the communication method determination unit 304. Furthermore, the wireless communication device 300 itself may be built in the external information processing device 307.

Further, in FIG. 1 and FIG. 3 described above, the number of wireless signal transmitting / receiving units is two, and therefore, it is assumed that the wireless signal transmitting / receiving units which are not currently in the communication state are always in the standby state. However, in order to reduce the power consumption, it is possible to intermittently set the standby operation state in a preset cycle. When the number of wireless signal transmission / reception units is 3 or more, it is sufficient that the two or more wireless signal transmission / reception units that are not currently in communication are alternately placed in the standby operation state intermittently. Such a situation is the same in FIG. 5 below.

Here, the operation in the case where the two wireless signal transmitting / receiving sections are both in the standby state and any one of the wireless signal transmitting / receiving sections receives the search signal from the external wireless communication device will be described. It looks like this:

That is, FIG. 5 shows a schematic configuration of another wireless communication apparatus according to the present invention. As shown in the figure, the wireless communication device 500 in this example includes detachable external interfaces 505 and 508 for connection with the two wireless signal transmitting / receiving units 501 and 502, respectively (generally,
An external interface is provided to support two or more wireless communication systems), a wireless communication control unit 509 for performing signal processing and communication control of wireless communication, and comparison condition setting and wireless for comparing and selecting two or more different wireless communication systems. A storage device 511 that stores a software defined radio program for reconfiguring the circuit of the radio communication control unit 509 according to the communication method;
It is composed of an external interface 512 for connecting to an external information processing device or the like. Wireless communication controller 50
In the communication method determination unit 510 incorporated in the wireless communication system 5, the wireless signal transmission / reception unit 5
Each of 01 and 502 stores, in addition to a signal transmission / reception antenna, a frequency modulator, a frequency demodulator, a filter, an oscillator, a DA converter, an AD converter, and the like, connection setting information for a wireless communication system in advance. Further, storage devices 503 and 504 such as a flash EEPROM, and further, a microprocessor, DSP, FPGA, etc. for judging connection availability based on the state detection of received radio waves, search signal response, and connection setting information on the storage devices 503 and 504 are provided. Furthermore, external interfaces 506 and 507 are provided between the wireless signal transmitting / receiving units 501 and 502 for mutually transmitting information to the other party.

Now, the wireless communication control processing flow in the case where the wireless signal transmission / reception units 501 and 502 are both in the standby state and any one of the wireless signal transmission / reception units receives the search signal from the external wireless communication apparatus will be described. As shown in FIG. As shown in the figure, as can be seen from steps 601-607, the processing flow is basically the same as the wireless communication control processing flow shown in FIG. However, as a prerequisite, both the wireless signal transmission / reception units 501 and 502 are in a standby state, and a process of determining connection availability based on preset connection setting information after receiving a search signal from an external communication device is performed. The difference is that the wireless signal transmission / reception units 501 and 502 are performed.

Therefore, the processing after step 607 will be described. If the connection is determined to be possible by the connection possibility determination at step 607, the result is transmitted to another wireless signal transmitting / receiving section, and if so, , If the other wireless signal transmission / reception unit receives a search signal or a connection request from another external communication device with a little delay from the wireless signal transmission / reception unit, the processing is temporarily stopped and the wireless communication system is determined. Until that time, it is in a dormant state. After that, the processing is performed in the same manner as the wireless communication control processing flow shown in FIG. In this way, once the wireless communication by one of the wireless signal transmission / reception units 501 and 502 is started, the wireless communication shown in FIG.
It has been transferred to the wireless communication control processing flow shown in 4.

By the way, the radio signal transmitter / receiver 50 in this example
Since 1 and 502 are detachable from the wireless communication device 500, three or more different wireless communication systems,
By preparing in advance, it is possible to use it properly according to need. For example, a combination of a wireless LAN and a mobile communication device, a combination of Bluetooth and a mobile communication device, and the like can be used properly. There is also an advantage that the communication function can be expanded if the user purchases only the necessary one. Furthermore, the communication system determination function is shared between the wireless signal transmission / reception unit and the communication system determination unit in the wireless communication device,
It is also possible to reduce the cost by reducing the number of circuit components and the number of elements per component. Furthermore, by transmitting the connection availability determination result to another wireless signal transmission / reception unit, if the other wireless signal transmission / reception unit receives a search signal or a connection request from another external communication device with a slight delay from the wireless signal transmission / reception unit. In that case, once the process is stopped, until the wireless communication method is confirmed,
By being in the dormant state, power consumption can be reduced.

Finally, referring to utilization of the wireless communication control method of the present invention, for example, an access point called a hotspot for providing Internet connection using wireless LAN or Bluetooth and a wide area using a mobile phone or PHS. It becomes possible to connect and utilize the Internet connection service seamlessly. For example, at hot spots such as stations, convenience stores, restaurants, etc., when you access the Internet via a high-speed wireless LAN, move to a different location and leave the communication area, you will automatically receive a mobile phone or PH.
By selecting a connectable communication network such as S and automatically connecting to it, a service capable of maintaining communication is easily realized. In this case, it goes without saying that the wireless communication system can be selected as desired according to preset conditions such as communication speed and communication cost.

Although the present invention has been described above, the following inventions (1) to (5) are also conceivable in addition to the invention described in the claims. (1): Comparison and selection of wireless signal transmission / reception units of two or more different communication systems, a storage device that stores connection setting information corresponding to the two or more different communication systems, and the two or more different communication systems And a wireless communication control unit capable of reconfiguring a circuit by software according to a communication method and an external interface for connecting to an external information processing apparatus. , A search from an external wireless communication device using a wireless signal transmitting / receiving unit of another communication system while communicating with an external wireless communication device using one of the wireless signal transmitting / receiving units of two or more different communication systems A wireless communication device, which receives a signal and responds. (2): The wireless communication device according to (1), which has a function of determining connection availability based on preset connection setting information in response to a connection request from an external wireless communication device, and a preset selection condition. By the function of selecting the most suitable communication method as compared with the wireless communication method during communication by setting, a connection response is made to a connection request of the external wireless communication device according to the selected result, and the connection request is made if necessary. A wireless communication device, comprising: reconfiguring a circuit of a wireless communication control unit with software corresponding to a selected communication method, and transmitting the selected result to an external information processing device through the external interface as needed. (3): The wireless communication device according to (1), wherein
Each of the wireless signal transmission / reception units of two or more different communication methods has a circuit for mutually transmitting information to / from another wireless signal transmission / reception unit. A wireless communication device, which transmits a state and a result of determination of connection availability based on preset connection setting information to the reconfigurable communication control unit and also to another wireless signal transmission / reception unit. (4): The wireless communication device according to (1), wherein
While communicating with an external wireless communication device using one of the wireless signal transceivers of two or more different communication methods, activate the wireless signal transceiver of another communication method at a preset cycle,
A wireless communication device having a function of receiving and responding to a search signal from an external wireless communication device. (5): Comparing wireless signal transmission / reception units of two or more different communication systems, a storage device storing connection setting information corresponding to the two or more different communication systems, and the two or more different communication systems. A wireless communication device configured by a storage device for storing condition settings, a wireless communication control unit capable of reconfiguring a circuit by software according to a communication system, and an external interface for connecting to an external information processing device, While communicating with an external wireless communication device using one of the two or more wireless signal transmission / reception units of different communication methods, a search signal from an external wireless communication device using a wireless signal transmission / reception unit of another communication method is used. Is received and responded to, and in response to a connection request from the external wireless communication device, it is determined whether or not connection is possible based on preset connection setting information, and according to preset selection condition settings, the communication in progress A wireless communication device and information, characterized in that the result compared with the wireless communication method is transmitted to an external information processing device through an external interface, and the information processing device displays the result on a display unit and transmits it to the user. A wireless communication system including a processing device.

According to the above-described wireless communication device and wireless communication system, while communicating with an external communication device using one wireless communication transmitting / receiving unit, a standby operation of another communication system is simultaneously performed.
Or by performing periodically, good radio wave condition,
It is possible to automatically select the optimal communication method according to changes in the communication environment such as high and low communication speed, connection service billing and connection fee price, and provide information for the user to select the communication method For example, if the user moves out of the communication area, it is detected from the radio wave condition, etc., and the communication method that can be connected at the moved place is automatically detected. It is possible to provide an optimum communication system by always following the communication environment in which the user is placed, such as switching between.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. It goes without saying that it is possible.

[0034]

EFFECTS OF THE INVENTION From two or more types of wireless communication systems,
Any one of the wireless communication methods can be selected, and while the wireless communication with the existing wireless communication method is being performed, the wireless communication can always be automatically switched to the wireless communication with the optimum wireless communication method. It is said that.

In addition, any one of the two or more types of wireless communication systems can be selected, and the wireless communication by the existing wireless communication system is being performed.
The wireless communication method optimized for the user can be arbitrarily switched by the user.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic schematic configuration of a wireless communication device according to the present invention.

FIG. 2 is a diagram showing a basic wireless communication control processing flow in the wireless communication device.

FIG. 3 is a diagram showing a system configuration of a wireless communication system including a wireless communication device according to the present invention and the external information processing device connected thereto.

FIG. 4 is a diagram showing a wireless communication control processing flow in the wireless communication device.

FIG. 5 is a diagram showing a schematic configuration of another wireless communication device according to the present invention.

FIG. 6 is a wireless communication control in a case where two wireless signal transmitting / receiving units in the wireless communication device are both in a standby state and any one wireless signal transmitting / receiving unit receives a search signal from an external wireless communication device. It is a figure which shows a processing flow.

FIG. 7 is a diagram showing a general configuration of a multi-mode wireless communication device as a prerequisite technique of the present invention.

FIG. 8 is a diagram showing a general configuration of a software defined radio communication device as a prerequisite technique of the present invention.

[Explanation of symbols]

100, 300 ... Wireless communication device, 101, 102, 30
1, 302 ... Wireless signal transmitting / receiving unit, 103, 303 ... Wireless communication control unit, 105, 305 ... Storage device, 104, 30
4 ... Communication method determination unit, 307 ... External information processing device, 30
8 ... Display unit, 106, 306 ... External interface.

Claims (3)

[Claims] 1. A first wireless signal transmitting / receiving unit compatible with the first wireless communication system, a second wireless signal transmitting / receiving unit compatible with the second wireless communication system, and a wireless communication control unit having a programmable LSI. A wireless communication control method in a wireless communication device comprising: a storage unit storing a wireless program for the first and second wireless communication systems, wherein the first wireless signal transmission / reception unit performs the first wireless communication. During communication with an external wireless communication device in a communication system, the second wireless signal transmission / reception unit performs a standby operation, and the second wireless signal transmission / reception unit executes an external wireless communication device in the second wireless communication system. If the communication with the second wireless communication system is possible, a condition comparison with the first wireless communication system is performed, and a wireless communication system with good communication conditions is determined. And select the A wireless communication control method comprising reading a wireless program for a wireless communication system from the storage unit and reconstructing the programmable LSI of the wireless communication control unit. 2. The wireless communication control method according to claim 1, wherein when the second wireless communication method is selected, the result of the selection is notified to an external information processing apparatus via an external interface. Wireless communication control method. 3. A first wireless signal transmission / reception unit compatible with the first wireless communication system, a second wireless signal transmission / reception unit compatible with the second wireless communication system, and a wireless communication control unit having a programmable LSI. A wireless communication control method in a wireless communication device comprising: a storage unit storing a wireless program for the first and second wireless communication systems, wherein the first wireless signal transmission / reception unit performs the first wireless communication. During communication with an external wireless communication device in a communication system, the second wireless signal transmission / reception unit performs a standby operation, and the second wireless signal transmission / reception unit executes an external wireless communication device in the second wireless communication system. If it is possible to communicate with the second wireless communication method, a condition comparison with the first wireless communication method is performed, and the result of the condition comparison is externally determined. External via interface A wireless communication control method characterized by transferring and displaying the information on an information processing device.