JP2001043073A - Software changing method of communication equipment, and communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a software changing method for communication equipment facilitating mutual complementing of software modules held in two confronted communication stations and to provide communication equipment. SOLUTION: Index information containing the kinds, versions and correspondent machine types concerning each of software modules held in at least one of two communication stations in the case of establishing a communication link is sent to the opposite communication station as a control frame. In the communication station receiving the control frame, the index information is extracted from the control frame are compared with the information of a module in the relevant communication station, a required module is identified and when there is the required module, a request signal is sent from the relevant communication station to the opposite communication station. In the communication station receiving the request signal, the requested module is sent to the opposite communication station and in the communication station receiving the module, the received module is stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a software changing method of a communication device and a communication device for changing communication software by communication devices connected to each other by wireless or wired communication.

[0002]

2. Description of the Related Art Various communication devices for performing wireless communication or wired communication are controlled by various softwares incorporated therein. For example, DSP (Digital Signal Pro)
In the case of utilizing the software radio architecture, it is possible to realize functions such as a modem and an audio codec by software (Reference 1: J. Mitola, III “The Software Radio Archit”).
ecture ”, IEEE Comm. Mag. Vol.33, No5, pp.26-38,199
Five).

[0003] Therefore, when each function such as a modulator / demodulator, a synthesizer, a voice codec, and a communication protocol is realized by software, the function of the communication device can be changed only by changing the software. By the way, for example, when communication is performed between two opposing stations, there is a case where only one communication station possesses a certain software module that can be used in each communication station. In such a case, the second communication station not owned by the first communication station owning the second communication station.
By transferring the software module to the second communication station, software can be added to the second communication station or the software can be upgraded.

In the case of transferring such a software module, communication has conventionally been performed using a procedure as shown in FIG. That is, the first communication station having the software module calls the second communication station at time t31 using a predetermined control frame. The second communication station returns a response to the first communication station using the control frame at time t32. Subsequent time t3
At 3, communication is established between the first communication station and the second communication station.

[0005] For example, when the user of the second communication station determines from the contents of the communication that the software module required by the second communication station exists in the first communication station, at time t34. A request for a specific software module is made from the second communication station to the first communication station. In response to this request, at time t35, the first communication station transmits the specific software module requested by the second communication station to the second communication station using a communication frame. Thereafter, the second communication station uses the received software module as needed.

[0006]

For example, when image communication is to be performed between a first communication station and a second communication station facing each other, each of the first communication station and the second communication station is required. Must have a software module for the video driver. If at least one of the communication stations does not have a video driver software module, image communication cannot be performed. However, if one of the communication stations has a required video driver software module, the software module is transferred to the other communication station so that the necessary software modules can be exchanged between the two stations. Since it can be complemented, image communication becomes possible.

[0007] However, in order to transfer such a software module, it is necessary to make a request for the software module.
It is necessary to grasp the types and versions of various software modules possessed by the own station and the partner station, and to check whether each software module is necessary for the own station.

Therefore, unless a request for a software module is made by a special operation of the user, only the partner station may have a software module for realizing a specific function or a new version of the software module. But you can't use it. An object of the present invention is to provide a communication device software change method and a communication device for facilitating mutual complementation of software modules possessed by two opposing communication stations.

[0009]

Generally, when communication is performed between two opposing stations, control such as calling and response is performed using a control frame in order to establish a communication link.
Thereafter, communication is performed between the two stations using the communication frame. Therefore, in the present invention, the control frame is transmitted including index information indicating the software module possessed by the own station. By receiving the control frame, the software possessed by the partner station can be recognized when the communication link is established, so that the software module required by the station can be specified. By transmitting a request signal for a necessary module, the module can be received from the partner.

Therefore, there is no need for the user to check the module possessed by the other party at the time of communication or to manually send out a request signal every time a necessary module is found. Version upgrade, function change, function addition, etc. can be easily realized. That is, claim 1 is a method for changing software of a communication apparatus that performs communication between at least two communication stations by using at least two communication stations. The communication station that has transmitted index information including at least the type, version, and corresponding model of each software module held by at least one of the communication stations to the communication station of the other party as a control frame, and has received the control frame including the index information, The index information is extracted from the received control frame, and information on each software module held by the communication station is compared with the extracted index information to identify a necessary software module. If the required software modules are included, the required The communication station that has transmitted the signal and has received the request signal transmits the requested software module to the other communication station, and the communication station that has received the software module stores the received software module. Features.

According to the first aspect, since the index information includes information on the type, version, and corresponding model of each software module, it is possible to identify whether each software module is necessary. That is, the module included in the model corresponding to the model of the own station may be a necessary module. Also, a module of the same type as the software module held by the own station may be a necessary module. However, even if the types match, if the version is the same or older than the software module of the own station, it is not useful.

According to a second aspect of the present invention, in the method for changing software of a communication device according to the first aspect, both of the two communication stations transmit index information on each software module held by the communication station to a communication station of the other party as a control frame. It is characterized by. According to the second aspect, since both communication stations each transmit a control frame including the index information, the two communication stations can mutually complement the software modules held by them.

According to a third aspect of the present invention, in the method for changing software of a communication apparatus according to the first aspect, when the request signal is transmitted, a control frame used for call control and a communication frame used for general communication are different. A different type of setup frame is generated, and the setup frame is transmitted including the request signal.

According to the third aspect of the present invention, the request signal is transmitted by a special setup frame, so that the receiving side can identify the normal communication and the request signal only by identifying the type of the frame. According to a fourth aspect of the present invention, in the method for changing software of the communication device according to the first aspect, when the requested software module is transmitted to the communication station of the other party, the software module is used for a control frame used for call control and general communication. A setup frame different in type from the communication frame is generated, and the setup frame is transmitted including the software module.

According to the fourth aspect, since the software module is transmitted by a special setup frame,
On the receiving side, normal communication and software modules can be identified only by identifying the type of frame. Claim 5
In the method for changing software of a communication device according to claim 1, the communication station receiving the control frame including the index information compares information on each software module held by the communication station with the extracted index information. Automatically specifying all necessary software modules, and transmitting a request signal from the communication station to the other communication station for all the specified software modules.

According to the fifth aspect, since a required software module is automatically specified and a request signal is transmitted, there is no need for the user to perform an operation such as module selection. According to a sixth aspect of the present invention, in the method for changing software of the communication device according to the first aspect, the communication station that has received the control frame including the index information includes information on each software module held by the communication station and extracted index information. To identify the required software module candidate, display and output the information of the identified candidate, specify the required software module in accordance with the input to the display output, and, with respect to the specified software module, A request signal is transmitted to a communication station.

According to the present invention, since the necessary software module candidates are displayed, the user can select the actually necessary software module and transfer only the selected minimum required module. Claim 7
In a communication device capable of performing wireless or wired communication with another communication station, when transmitting a control frame for establishing a communication link with another communication station, the communication device relates to each software module held by the own station. At least kind,
An index information transmitting means for transmitting index information including a version and a corresponding model in a control frame, and transmitting and receiving information of each software module held by the own station when the received control frame includes index information. Module identification means for identifying the presence or absence of a software module required by the own station by comparing with the index information obtained, and, if the software module required by the own station is included in the index information, Module request means for requesting transfer to another station, module sending means for sending a designated software module when requested to transfer a software module from another station, and module sending means for sending the requested software module. Module receiving means for storing modules, and received software With implementing the operation test for E A module, in which case the result is normal, characterized in that the software module has been received is provided a module updating means for changing the software utilizing the own station.

The index information transmitting means transmits a control frame for establishing a communication link with another communication station.
It is transmitted as a control frame including index information including at least the type, version, and corresponding model of each software module held by the own station. When the received control frame includes index information, the module identification unit compares the information of each software module held by the own station with the received index information to determine whether or not there is a software module required by the own station. Identify.

When the software information required by the own station is included in the index information, the module request means requests the other station to transfer the software module. The module sending means sends out the designated software module when the transfer of the software module is requested from another station. When receiving the requested software module, the module receiving means stores the module. Module update means,
An operation test is performed on the received software module, and if the result is normal, the software used by the own station is changed by the received software module.

Therefore, by using the communication device of the present invention, the method of changing software of the communication device of the present invention can be implemented. Further, since the operation test is performed on the software module received before the software used by the own station is changed, it is possible to prevent a malfunction from occurring due to the software change.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) One embodiment of a method for changing software of a communication device and a communication device according to the present invention will be described with reference to FIGS. 1 to 9 and FIG. This form corresponds to all claims.

FIG. 1 is a time chart showing an example of the communication operation of this embodiment. FIG. 2 is a block diagram showing a configuration of the wireless communication terminal of this embodiment. FIG. 3 is a flowchart showing the receiving process of each communication station of this embodiment. FIG. 4 is a flowchart showing the transmission process of each communication station. FIG. 5 is a schematic diagram showing a configuration example of the software module library. FIG. 6 is a schematic diagram showing a specific example of the software module library. FIG. 7 is a schematic diagram showing the configuration of the control frame. FIG. 8 is a schematic diagram showing the correspondence between the frame identifier and the frame type. FIG. 9 is a schematic diagram showing the configuration of the setup frame. FIG. 11 is a schematic diagram illustrating an example of a communication station used for communication.

In this embodiment, the components of claim 7 correspond as follows. That is, the index information sending means corresponds to steps S11 and S12, the module identifying means corresponds to steps S23, S24 and S25, the module requesting means corresponds to steps S13, S14 and S15, and the module sending means corresponds to steps S27 and S27. S28, S
14 and S15, the module receiving means corresponds to steps S31 and S32, and the module updating means corresponds to steps S33, S34 and S35.

The communication apparatus to which the present invention is applied includes, for example, a radio communication terminal 10 and a base station 20 shown in FIG.
Can be assumed. In addition, the present invention can be applied to communication devices connected by a wired network. In this embodiment, as a specific example, two wireless communication terminals (such as mobile phones) 1 having the same configuration as shown in FIG.
A case where communication is performed between 0 will be described. In this embodiment, the wireless communication terminal 10 having the configuration shown in FIG. 2 is used.

Referring to FIG. 2, this radio communication terminal 10
Has a multi-mode transceiver unit 11 and operation board 1
2, a display unit 13, an audio processing unit 14, an external interface 15, a communication control unit 16, a software module library 17, a buffer memory 18, and a module rewriting circuit 19. The multimode transmission / reception unit 11 is a circuit for performing wireless communication, and incorporates a multiband antenna and a programmable signal processing device that can be used in a wide frequency band.
The programmable signal processing device is used as a multi-band filter, a modulator / demodulator, an audio codec, and the like that can change their functions flexibly. The functions of the programmable signal processing device can be changed by software. This multi-mode transmission / reception unit 11
Can be realized using the technology described in the above-mentioned document 1.

The operation board 12 includes an input device such as a numeric keypad used for inputting a dial number. The display unit 13 is a display device capable of displaying character information such as a destination telephone number. The voice processing unit 14 includes a microphone and a speaker used during a call, and an electric circuit that processes signals from the microphone and the speaker. The external interface 15 is an interface for directly connecting the wireless communication terminal 10 to another device. For example, two wireless communication terminals 10 can be connected to each other via a cable via the external interface 15.

The communication control unit 16 is a control device including a microcomputer and the like. The communication control unit 16 controls the entire operation of the wireless communication terminal 10. Programs executed by the microcomputer of the communication control unit 16 and data used by the programs are held in the software module library 17 as a plurality of independent software modules M.

Software module library 17
Is a memory that holds a number of software modules M. The buffer memory 18 is used for temporarily storing information to be transmitted and received information. The module rewriting circuit 19 rewrites a module when a new software module M is added to the software module library 17 or when an existing module is upgraded.

In this example, each software module M held in the software module library 17
Is composed of a module name, a version, a corresponding model, group information, and a module body as shown in FIG. For example, in the example of FIG.
The module name, version, compatible model, and group information in (1) are “MOD1”, “Ver1.0”,
"A, B" and "Freeware". The corresponding model indicates the model name of a device that can use the software module M. Therefore, the software module M (1) can be used in the case of the device of the model “A” and the device of the model “B”.

The group information is information that can be used to check whether the distribution of the software module M is possible. If the group information is "freeware", it can be freely distributed. A software module M whose group information is “paid” cannot be distributed without special permission. For example, as shown as (a) in FIG. 11, when communication is performed between two wireless communication terminals 10 (1) and 10 (2), the software module library of one wireless communication terminal 10 (1) is used. In some cases, a software module M that does not exist in the wireless communication terminal 17 is held in the wireless communication terminal 10 (2) of the communication partner. In such a case, if the software module M held in the wireless communication terminal 10 (2) is transferred to the wireless communication terminal 10 (1) by communication, the software module M can be added to the wireless communication terminal 10 (1) or the module can be added. Can be upgraded.

In this example, two wireless communication terminals 10
Since (1) and 10 (2) perform the communication as shown in FIG. 1, the transfer of the software module M as described above can be easily performed without the user making a special request. FIG.
, The first communication station and the second communication station correspond to the two wireless communication terminals 10 (1) and 10 (2), respectively. Note that the communication in FIG. 1 may be performed by wireless communication using the multi-mode transmission / reception unit 11, or may be performed by wired communication using the external interface 15.

In order to perform communication, it is first necessary to call the other party and establish a communication link between the first communication station and the second communication station. Therefore, in the example of FIG. 1, the first communication station transmits a control frame for calling at time t11. This control frame includes index information on the software module library 17 of the first communication station.

In order to respond to the call from the first communication station, the second communication station sends out a control frame including a response signal at time t12. This control frame includes index information on the software module library 17 of the second communication station.

The second communication station checks index information included in the control frame received at time t11 to determine whether or not the first communication station has a software module M that is insufficient for itself. Can be identified. Therefore, when the required software module M is found, the second communication station requests the module in the form of a predetermined setup frame at time t14.

Similarly, the first communication station checks index information included in the control frame received at time t12 to determine whether the software module M lacking in the first communication station exists in the second communication station. Can be identified. Therefore, if the required software module M is found,
The first communication station requests a module in the form of a setup frame at time t13.

In response to the request of the above module, the first communication station transmits the designated software module M at time t.
Send out at 15. Also, the second communication station sends out the designated software module M at time t16. When the transmission of the designated software module M is completed, the first communication station transmits a setup frame for notifying the completion of the setup at time t17. Similarly, the second communication station transmits a setup frame for notifying the completion of the setup at time t18.

Therefore, the necessary transfer of the software module M can be automatically executed before starting the normal communication at the time t19. The control frames transmitted from the communication stations at times t11 and t12 are configured as shown in FIG. 7 in this example. Referring to FIG. 7, a frame identifier is arranged at the head of the control frame. The value of the frame identifier indicates the type of the frame.
Therefore, it is possible to identify that this frame is a control frame from the value of this frame identifier.

The control information included in the control frame is:
It contains call control information necessary for calling the other party. This control information is also included in a control frame transmitted by a general communication station. The index information included in the control frame shown in FIG. 7 is composed of information on a module name, a version, and a corresponding model of each software module M (excluding those that cannot be distributed) provided in the software module library 17. I have.

On the other hand, as shown in FIG. 9, there are three types of setup frames. The first setup frame consists of a frame identifier and a software module request. The software module request includes the identification numbers of all software modules M specified as transfer targets. Therefore, a plurality of software modules M can be requested in one setup frame.

The second setup frame is composed of a frame identifier and a software module M. The third setup frame includes a frame identifier and information indicating setup completion. As shown in FIG. 8, a value (one of 0 to 4) according to the type of the frame is assigned to the frame identifier of each frame. The communication frame corresponding to the frame identifier “4” is used when performing general communication.

In practice, the communication control unit 16 of each wireless communication terminal 10 executes a transmission process as shown in FIG. 4 and a reception process as shown in FIG. The specific processing content will be described below. When the first communication station calls the second communication station at time t11 in FIG. 1, the operation of the first communication station proceeds from step S10 to S11 in FIG. Step S
At 11, a control frame is created. This control frame includes index information as shown in FIG. This index information is an index related to the software module library 17 of the first communication station. However, "Group information"
The software module M for which distribution is not permitted as in the case of "paid" is deleted from the index information. This control frame is transmitted from the first communication station in step S12.

Similarly, when the second communication station responds to the call at time t12 in FIG. 1, the operation of the second communication station is as shown in FIG.
The process proceeds from step S10 to S11. In step S11, a control frame including index information is created. This index information is an index for the software module library 17 of the second communication station. This control frame is transmitted from the second communication station in step S12.

On the other hand, each communication station receives the frame transmitted by the other station in step S20 in FIG. Step S21
Then, the type of the frame is identified by extracting the frame identifier arranged at the head of the frame. Time t11 in FIG.
The operation of the second communication station that has received the control frame of the call at the time t12 and the operation of the first communication station that has received the control frame of the response at the time t12 in FIG.
The process proceeds from step 2 to S23.

In step S23, index information contained in the received control frame is extracted. Step S
At 24, the index information is analyzed. In step S25, the software module M to which the transfer is requested is determined according to the analysis result in step S24. That is, the contents of the received index information are compared with the information (module name, version) of the software module library 17 of the own station and the model name of the own station, and the missing software module M required by the own station is automatically determined. To decide.

For example, the software module M having the same module name as the "module name" relating to the specific module of the received index information does not exist in the software module library 17 of the own station, and the own module is included in the "compatible model" of the module. If the model name is included,
Consider that module a required module. Thereby, a new module can be added.

Also, a software module M having the same module name as the “module name” of the specific module of the received index information exists in the software module library 17 of the own station, and the “version” of the module of the received index information is If the module is newer than the version of its own module (the numerical value is larger), the module is regarded as a necessary module. As a result, the version of the module can be upgraded.

If at least one module to be requested is found in step S25, it is determined that the setup information needs to be transmitted. In that case, in the transmission process of FIG. 4, the process proceeds from step S13 to S14. Step S1
In step 4, a setup frame is created, and step S15
Then, the setup frame is transmitted. When executing step S14 for the first time, a setup frame (1) shown in FIG. 9 is created. This setup frame (1) is transmitted at time t13 or t14 in FIG.

The communication station that has received the setup frame (1) performs steps S26 and S2 in the reception process of FIG.
Then, the process proceeds to S28 through Step 7. In step S28, the software module M to be transmitted is determined according to the content of the software module request included in the received setup frame (1). That is, a preparation is made so that all the software modules M requested by the other party can be transmitted.

When executing the transmission process of FIG. 4 after executing step S28, the process proceeds from step S13 to S14. In this case, in step S14, a setup frame (2) including one software module M determined in step S28 is created. This setup frame (2) is transmitted in step S15. That is, the setup frame (2) including the software module M is transferred at time t15 or t16 in FIG.

On the other hand, the processing of the communication station receiving the setup frame (2) including the software module M is as follows.
In steps S27 and S29 in the receiving process of FIG.
Proceed to 1. In step S31, a software module M included in the received setup frame (2) is extracted. In step S32, step S3
The software module M extracted in 1 is temporarily stored in the buffer memory 18.

In step S33, a predetermined operation test is performed on the received software module M on the buffer memory 18 in order to check whether or not it operates normally. As a result of the operation test, when it is confirmed that the operation is normal, the process proceeds to step S34. In step S34, the software module M whose normal operation has been confirmed in step S33 is transferred from the buffer memory 18 to the software module library 17, and the module on the software module library 17 is rewritten or added. At the time of this rewriting, processing is performed using the module rewriting circuit 19.

In step S35, information for managing the software module library 17 (the module names, versions, and corresponding models of all registered modules) is reflected so as to reflect the result of the change made to the software module library 17. , Group information, etc.). Immediately after the transfer of all the software modules M determined in step S28 is completed, when the communication station that sends out the software modules M executes the transmission processing of FIG. 4, the process proceeds from step S13 to S14. In this case, since the transmission of all the software modules M has been completed, a setup frame (3) including information for notifying “setup completion” is created in step S14. This setup frame (3) is transmitted in step S15. That is, FIG.
Setup frame (3) at time t17 or t18
Is sent.

The communication station that has received the setup frame (3) performs steps S27 and S2 in the reception processing shown in FIG.
Go through S9 to S36. In step S36, a process necessary to complete the setup is executed. When executing the receiving process of FIG. 3 after executing this process,
The process proceeds to S37 through steps S22 and S26. In other words, in this case, the normal communication processing (call, data communication,
(Reception processing for video communication, etc.).

The communication station that has transmitted the setup frame (3) proceeds to S16 through steps S10 and S13 when performing the transmission processing of FIG. 4 next. In step S16, a communication frame necessary for normal communication (call, data communication, video communication, etc.) is created. This communication frame is transmitted in the next step S17. Therefore, FIG.
At time t19, communication using the communication frame is started.

(Second Embodiment) Another embodiment of the communication apparatus software change method and communication apparatus according to the present invention will be described with reference to FIG. This embodiment is a modification of the first embodiment, and is the same as the first embodiment except that FIG. 10 is executed instead of the receiving process of FIG. In FIG. 10, the same steps as those in FIG. 3 are denoted by the same reference numerals. The changed process in FIG. 10 will be described below.

In the case of a communication station that has received a control frame including index information, steps S20, S21, S2 in FIG.
The process proceeds to step S41 through 2, S23 and S24. That is, by comparing the index information included in the received control frame with the module name and version of the software module library 17 of the own station and the model name of the own station, the software module M available to the own station is checked, and then the process proceeds to step S41. Proceed to.

In step S41, all information (module name, version, compatible model, etc.) on the available software module M obtained as a result of the analysis in step S24 is displayed on the display unit 13.

In step S42, input of a selection relating to the software module M displayed in step S41 is awaited. By operating a key on the operation board 12, the user can specify to select a part or all of the displayed software module M.
That is, when the user performs an input operation for selection, the process proceeds from step S42 to S43. In step S43,
As a module requesting the other station, step S
At 42, the software module M specified by the user is determined.

In other words, in this embodiment, the software module M which requests the partner station to add or upgrade to the software module library 17 of the own station is used.
Can be specified by the user.

[0060]

According to the present invention, the index information of the software possessed by the communication device is added to the control frame used at the time of the call connection. Even without performing, the software module possessed by the communication device can be automatically updated so as to complement each other.

Therefore, for example, in the communication mode as shown in FIG. 11C, the carrier can independently upgrade and add functions between base stations. Further, in the communication mode as shown in FIG. 11B, by transferring the software module from the base station to the wireless communication terminal, the operator can upgrade the software of the communication device owned by the user. Will be possible.

On the other hand, in the communication mode as shown in FIG. 11A, the user can rewrite a function change, a function addition, and the like by mutually complementing software modules of the communication device between the users. Furthermore, since software modules are mutually complemented between communication stations during communication, interruption of communication due to inadequate software modules can be prevented.

Therefore, it is possible to reduce the burden of modifying the software module or adding a function by the business operator, simplify the function change of the communication device by the user, and improve the convenience at the time of communication.

[Brief description of the drawings]

FIG. 1 is a time chart illustrating an example of a communication operation according to an embodiment;

FIG. 2 is a block diagram illustrating a configuration of a wireless communication terminal according to an embodiment.

FIG. 3 is a flowchart illustrating a reception process of each communication station according to the first embodiment.

FIG. 4 is a flowchart showing a transmission process of each communication station.

FIG. 5 is a schematic diagram illustrating a configuration example of a software module library.

FIG. 6 is a schematic diagram showing a specific example of a software module library.

FIG. 7 is a schematic diagram showing a configuration of a control frame.

FIG. 8 is a schematic diagram showing a correspondence between a frame identifier and a frame type.

FIG. 9 is a schematic diagram showing a configuration of a setup frame.

FIG. 10 is a flowchart illustrating a reception process of each communication station according to the second embodiment.

FIG. 11 is a schematic diagram illustrating an example of a communication station used for communication.

FIG. 12 is a time chart showing a communication operation of a conventional example.

[Explanation of symbols]

 Reference Signs List 10 wireless communication terminal 11 multi-mode transmission / reception unit 12 operation board 13 display unit 14 audio processing unit 15 external interface 16 communication control unit 17 software module library 18 buffer memory 19 module rewriting circuit 20 base station M software module

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shuji Kubota 2-3-1 Otemachi, Chiyoda-ku, Tokyo F-term in Nippon Telegraph and Telephone Corporation (reference) 5B076 AC07 BB06 5B089 GA21 JB07 JB14 JB23 KA01 KA04 KA12 KB09 KC15 KC53 KC59 LB03 LB15 5K027 AA11 CC08 5K067 BB21 DD23 GG01 GG11 HH05 HH17 HH22 HH23 HH24 5K101 TT06

Claims (7)

[Claims] 1. A method for changing software of a communication device that performs communication between at least two communication stations by using at least two communication stations, the method comprising the steps of: At least one of the communication stations transmits index information including at least a type, a version, and a corresponding model of each software module as a control frame to a partner communication station, and the communication station that has received the control frame including the index information receives the control frame. Extracting the index information from the control frame obtained,
The information about each software module held by the communication station is compared with the extracted index information to identify a necessary software module. If the extracted index information includes a necessary software module, A request signal is transmitted from the communication station to the communication station of the other party, and the communication station receiving the request signal transmits the requested software module to the communication station of the other party, and receives the software module. In a communication station, a software change method of a communication device, wherein received software modules are stored. 2. The method for changing software of a communication device according to claim 1, wherein both of the two communication stations transmit index information on each software module held by the communication stations to a communication station of the other party as a control frame. To change the software of a communication device. 3. The method for changing software of a communication device according to claim 1, wherein the request signal is transmitted in a different type from a control frame used for call control and a communication frame used for general communication. A method for changing software of a communication device, comprising generating a setup frame and transmitting the setup frame including the request signal. 4. A software change method for a communication device according to claim 1, wherein the requested software module is transmitted to a partner communication station, and is used for a control frame used for call control and general communication. A method for changing software of a communication device, comprising: generating a setup frame different in type from a communication frame; and transmitting the setup frame including a software module. 5. The software change method for a communication device according to claim 1, wherein the communication station receiving the control frame including the index information includes information on each software module held by the communication station, and the extracted index information. , Automatically specifying all necessary software modules by comparing with each other, and transmitting a request signal from the communication station to the other communication station for all of the specified software modules. Modification method. 6. The software changing method for a communication device according to claim 1, wherein the communication station receiving the control frame including the index information includes information on each software module held by the communication station, and the extracted index information. To identify the required software module candidates,
Displaying and outputting information of the specified candidate, specifying a required software module according to an input to the display output, and transmitting a request signal from the communication station to the communication station of the other party with respect to the specified software module. To change the software of a communication device. 7. A communication device capable of wireless or wired communication with another communication station, wherein the communication apparatus holds a control frame for transmitting a control frame for establishing a communication link with another communication station. Index information transmitting means for transmitting index information including at least the type, version and corresponding model of each software module included in the control frame, and transmitting the index information if the received control frame includes the index information. Module identification means for identifying the presence or absence of a software module required by the own station by comparing the information of each software module to be executed with the received index information; and the index information includes a software module required by the own station. Module request means for requesting another station to transfer the software module; A module sending means for sending a designated software module when a transfer of a module is requested from another station; a module receiving means for storing the requested software module when receiving the requested software module; and a received software module. And a module updating means for changing the software used by its own station by the received software module if the result of the operation test is normal.