JPH1118153A - Mode-switching method for mobile object telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a call termination side terminal to a desired operation mode as needed and to reduce power consumption or the like by sending out control data for switching the operation mode of the call termination side terminal from a call origination side terminal connected through a public network, receiving the control data through the call termination side terminal and switching the operation mode of the call termination side terminal. SOLUTION: In a communication state, from the call origination side terminal to a base station and the call termination side terminal, the control data for turning the operation mode of the call termination side terminal to an inter-slave unit direct communication mode are transmitted. The control data are stored in the memory of the call origination side terminal, and by performing a key operation in the call origination side terminal in the communication state, they are read from the memory and sent out. When the control data are received by the call termination side terminal through the base station, reception completion information is sent out to the call origination side terminal. At the time of receiving the reception completion information, the call origination side terminal reports to the caller that the inter-slave unit direct communication mode is to be switched to.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mode switching method for a mobile telephone, such as a PHS telephone, for switching an operation mode.

[0002]

2. Description of the Related Art Mobile telephones, especially PHS telephones, are self-employed to make a telephone call between a public who makes a telephone call via a public network, a home telephone, and a PHS telephone (slave). Can be used in three ways: direct communication between slave units.

[0003] Of these, direct communication between slave units is performed by TDMA / T.
DD (Time Division Multiplex Communication: Time Division M)
multiple Access / Time Divi
The transmission and reception are performed by a multi-channel access method using the S.Duplex. In order to make a call using this method, a pair of terminals making a call are in the state of each other,
That is, it is necessary to be in the direct talk mode between the slave units. If an SCCH (individual cell channel) from the transmitting side can be received on that basis, incoming and outgoing calls can be made. In addition, the direct communication between the slave units can be usually used within a range where radio waves of the public and the private base station do not reach, and there is no charge for character transmission and communication during use.

[0004] By the way, when a direct call is made between slave units,
When the calling party performs a direct call between slave units by a caller's operation, the terminal may be set to the direct talk mode between the slave units.
Since it is not known when to receive, it is necessary to always set the direct communication mode between the slave units.

[0005]

However, direct communication between slave units consumes a large amount of current because transmission / reception is performed by the multi-channel access method using TDMA / TDD as described above. If the communication mode is set, the standby time becomes short.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a step of connecting a calling terminal and a called terminal via a public network, and the steps of: Sending, to the receiving terminal, control data for switching the operation mode of the receiving terminal; and receiving the control data transmitted in this step by the receiving terminal and switching the operation mode of the receiving terminal. And a mode switching method for a mobile phone.

[0007] In this method, the receiving terminal receives the control data and switches the operation mode to a direct communication mode between slave units as a specific example. On the other hand, the transmitting terminal transmits control data by key operation during a call with the receiving terminal. Further, the calling terminal may set the transmission of the control data and then enter the call state, and transmit the control data during the call. Further, the originating terminal can also send out control data in a connection state other than a call state with the receiving side terminal. More specifically, control data can be sent to the receiving terminal when a function is requested. Furthermore, the originating terminal can also send control data to the receiving terminal when a disconnection request is made.

On the other hand, the operation mode of the receiving terminal is switched after the call with the calling terminal is completed. The receiving terminal can also reject mode switching when receiving control data from the calling terminal. The transmitting terminal has means for notifying the user of the reception completion information when receiving the reception completion information from the receiving terminal. The originating terminal may transmit the restriction data along with the control data, and the receiving terminal may receive the restriction data and switch the operation mode for a predetermined time.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mode switching method for a mobile phone according to the present invention will be described in detail with reference to the accompanying drawings. The embodiment is a case where the method of the present invention is applied to a mode switching method of a PHS telephone, and particularly to a method of switching a receiving-side PHS telephone to a direct communication mode between slave units.

FIG. 1 is a diagram showing a control sequence from a connection operation to completion of disconnection between a calling terminal, a base station, and a called terminal. When the connection operation is performed at the calling terminal, as is well known, the communication terminal goes into the "communication state" via "link channel establishment", "link channel assignment", "synchronous burst", and then, the disconnection operation is performed at the calling terminal. Is performed, "disconnection request", "release",..., And "wireless channel disconnection completed".

In this embodiment, in the call state of the control sequence, the operation mode of the called terminal is changed from the calling terminal to the base station and the called terminal as shown in step S1, and the operation mode of the called terminal is set to the direct communication mode between the slave units. Is transmitted. The control data is stored in the memory of the calling terminal, and is read out from the memory and transmitted by performing a key operation on the calling terminal in a call state. At this time, in order to prevent erroneous transmission, the control data is transmitted when the key is pressed (pressed for a longer time than usual) or when a plurality of keys are operated.

The control data is inserted into the area (16 bits) of SA in the TCH (information channel) during communication by being identified by a predefined code (command).
It is stored and transmitted in the CCH (low speed associated control channel). This control data is transmitted to the receiving terminal together with the voice data. The control data is stored in the FA in the TCH.
It can also be transmitted on a CCH (High Speed Associated Control Channel). When transmitting control data on the FACCH, it is necessary to reconfigure the data link to the FACCH, but there is an advantage that the number of transmittable bits is 160 bits, which is larger than that of the SACCH.

When such control data is transmitted from the transmitting terminal, received by the receiving terminal via the base station, and accepted by the receiving terminal, it is determined that the control data has been received by the receiving terminal. In order to notify the terminal, the receiving side terminal sends reception completion information (sent in the same manner as the control data) to the calling side terminal as shown in step S2 of FIG. Upon receiving the reception completion information, the calling terminal receives the reception completion information, in other words, a notification means for receiving the control data and notifying the sender that the receiving data is to be switched to the direct communication mode between the slave units. Works. Specifically, character information indicating that the receiving side terminal is switched to the direct communication mode between the slave units is displayed on the display unit, a beep sound is generated, or L
ED emits light.

When the control data is received and accepted by the receiving terminal, the receiving terminal terminates the call and switches the operation mode to the direct communication mode between the slave units after "wireless channel disconnection is completed" in FIG. Therefore, thereafter, it is possible to make a call between the calling side terminal and the called side terminal by a direct telephone call between slave units. At this time, the receiving side terminal receives the restriction data sent from the calling side terminal together with the control data, and switches to the direct communication mode between the slave units only for a certain period of time after “radio channel disconnection is completed”. You can also

Further, by setting the receiving side terminal by key operation in advance, when receiving the control data, the receiving side terminal can reject the switching to the direct communication mode between the slave units. In this case, even if the control data is received, the receiving side terminal does not transmit the reception completion information, but transmits reception rejection information instead.

FIG. 2 is a detailed operation flowchart relating to control data reception and response of the called terminal among the above operations. In the in-call process in step S11, it is determined whether the call is disconnected (step S12). If the call is disconnected, the process proceeds to the disconnection process (step S13). On the other hand, if not disconnected, it is determined whether or not control data has been received (step S14), and if not, the call processing is continued. On the other hand, when the control data is received, the control data is analyzed (step S15), it is determined whether or not the control data is to be accepted (step S16). In addition, when other control data is rejected, reception rejection information is generated (step S
17), the transmission processing is performed (step S20), and the transmission is notified to the receiving side terminal user by display, sound, light, or the like (step S21), and the processing returns to the busy state. on the other hand,
When the received control data (control data for switching to direct communication between slave units) is received, mode switching is set on the memory (step S18), reception completion information is generated (step S19), and the information is received. After the transmission processing (step S20), the transmission is notified to the user (step S20).
21) Return to call processing.

FIG. 3 shows that a mode designation state set in the called terminal is stored in a memory. After disconnection processing is performed based on the setting in the memory, the operation mode is set to the specified operation mode. It is a flowchart for performing. When the disconnection process is performed in step S31, a setting area on the memory is referred to (step S32), and the operation mode is determined from the data in the area (step S3).
3) If the current operation mode is maintained, the process proceeds to the disconnection end / standby process (step S35). On the other hand, if the determined operation mode is the direct communication mode between slave units, the operation mode is switched to the direct communication mode between slave units (step S
34) After the switching, the sequence goes to the disconnection end / standby process (Step S35).

FIG. 4 is a diagram showing reception information (reception completion information and reception rejection information) from the receiving terminal at the transmitting terminal.
Is shown in the flowchart of the receiving process. Step S41
It is determined whether the call is disconnected in the processing during the call (step S4).
2) If it is a cutting, the process proceeds to a cutting process (step S43).
On the other hand, if it is not disconnected, it is determined whether or not reception information has been received (step S44). If not, the call processing is continued. On the other hand, when the receiving information is received, the receiving information is analyzed (step S45), and when it is determined that the information is the rejection information (step S46), the process returns to the in-call processing in step S41. On the other hand, when it is determined that the reception information is the reception completion information (step S4).
6), and set the mode switching in the memory (step S4)
7) In addition, a display indicating that the operation mode is switched to the direct communication mode between child devices in the receiving terminal is notified to the calling terminal user by sound, light, or the like (step S48), and step S4 is performed.
The process returns to step 1 during the call. When the mode switching is set in the memory in step S47, the calling terminal
After the disconnection processing as shown in FIG. 3 similarly to the receiving terminal, the operation mode is automatically switched to the operation mode in which the operation mode is specified.

FIG. 5 shows that, when the called terminal is switched to the direct talk mode between the slave units, restriction data for setting the direct talk mode between the slave units for a certain period of time is added to the control data at the calling terminal. The operation flowchart at the time is shown. The restriction data is stored in a memory, and is generated by reading out from the memory by a key operation. When the limit data is read out, the limit data accompanies the control data (step S52), and the limit process in the calling terminal ends.

FIG. 6 is a flowchart showing the operation of the called terminal when the called terminal receives the restriction data sent from the calling terminal. When the restriction data transmitted from the calling terminal is received by the reception terminal (step S61), a restriction timer is set to a time corresponding to the restriction data (step S62).

When the limit timer is set, after the receiving terminal has been disconnected, the operation of the limiting timer is started when the mode is switched to the direct communication mode between the slave units, and the receiving terminal is set to the child terminal for the time of the limiting timer. When the time limit timer expires (step S63) as shown in FIG. 7, the called terminal returns to the mode state before the mode switching (step S64).

By setting the restriction data generated by the transmitting terminal in the restriction timer of the transmitting terminal, the time during which the transmitting terminal is switched to the direct communication mode between the slave units can be set, similarly to the receiving terminal. It can be limited to a certain time.

FIG. 8 shows another example of the control sequence.
FIG. 9 is a diagram for explaining another example of a control data transmission method. In the control sequence of FIG. 1, the control data is transmitted in the call state, but in the case of FIG. 8, the control data is transmitted to the receiving terminal using the function request of the service phase process (step S71) before the call state. . As an actual operation, at the time of the connection operation, by operating the function key and the like in addition to the transmission key, the control data can be read from the memory and the control data can be transmitted by the function request. At this time, the control data is based on the SACC provided in place of the TCH.
Transmitted on H or FACCH.

When such control data is sent to the receiving terminal in the function request, the receiving terminal sends, in the function request response in step S72, reception information indicating whether to accept or reject the control data. Return to. This is the same as the operation in FIG. Also, when the receiving terminal receives the control data, the operation mode is switched to the direct communication mode between the slave units after “radio channel disconnection is completed” as in the case of FIG.

The method of transmitting control data from the originating terminal can be easily modified in various ways in addition to the above.
For example, there is a method in which transmission is set (instructed) before the call state and transmitted in the call state, or control data is transmitted when a disconnection request is made. For example, after a disconnection request (CC disconnection), control data is entered in a facility, fixed shift, or the like.

According to the above-described method, control data is transmitted from the calling terminal to the called terminal while connected via the base station, and the called terminal is switched to the direct talk mode between the slave units. As a result, the called terminal can be set to the direct talk mode between the slave units when necessary, and the receiving terminal need not always be set to the direct talk mode between the slave units. It can be reduced and the standby time can be extended. Furthermore, by switching to the direct talk mode between slave units during a call via the public base station, there is no charge after the switch, and there is a merit in telephone charges, and there is no exclusive use of the radio wave of the public base station of a certain business establishment. Thus, it is possible to increase the radio efficiency (the traffic volume does not increase) in the area covered by the base station.

In the above-described embodiment, a case has been described in which the receiving terminal is switched to the direct communication mode between the slave units by the control data. It is also possible to switch to other modes, such as the two-function mode of a call.

In the above description, the terminals are classified into the transmitting side and the receiving side. However, the transmitting side terminal simultaneously becomes the receiving side terminal, and the receiving side terminal simultaneously becomes the transmitting side terminal. Has the same configuration and function. Furthermore, although the above description has been made with reference to a PHS telephone, it goes without saying that the present invention can be applied to other similar mobile telephones.

[0029]

As described above, according to the mode switching method for a mobile telephone according to the present invention, it is possible to set the called terminal to a desired operation mode when necessary, thereby reducing current consumption. it can.

[Brief description of the drawings]

FIG. 1 is a control sequence diagram showing an embodiment of a mode switching method for a mobile phone according to the present invention.

FIG. 2 is a flowchart showing a part of the operation of the embodiment of the present invention;

FIG. 3 is a flowchart showing a part of the operation of the embodiment of the present invention;

FIG. 4 is a flowchart showing a part of the operation of the embodiment of the present invention;

FIG. 5 is a flowchart showing a part of the operation of the embodiment of the present invention.

FIG. 6 is a flowchart showing a part of the operation of the embodiment of the present invention.

FIG. 7 is a flowchart showing an operation of a part of the embodiment of the present invention.

FIG. 8 is a control sequence diagram showing another example of a control data transmission method in the mode switching method of the present invention.

Claims (11)

[Claims] 1. A step of connecting a calling terminal and a called terminal via a public network, and control data for switching an operation mode of the called terminal from the calling terminal connected to the calling terminal to the called terminal in the step. And a mode in which the receiving terminal receives the control data transmitted in the step, and the operation mode of the receiving terminal is switched. . 2. The mobile telephone mode switching method according to claim 1, wherein the receiving terminal receives the control data and switches the operation mode to the direct communication mode between the slave units. Mode switching method. 3. The mode of the mobile telephone according to claim 1, wherein the transmitting terminal transmits control data by key operation during a call with the receiving terminal. Switching method. 4. The method according to claim 1, wherein the originating terminal sets the transmission of the control data, sets a communication state, and transmits the control data during the communication. How to switch the mode of the body phone. 5. The mobile telephone mode switching method according to claim 1, wherein the transmitting terminal transmits control data in a connection state other than a call state with the receiving terminal. Mode switching method. 6. The mode of the mobile telephone according to claim 5, wherein the transmitting terminal transmits control data to the receiving terminal in response to a function request before the call state. Switching method. 7. The mode switching method for a mobile telephone according to claim 1, wherein the originating terminal sends control data to the receiving terminal when a disconnection request is made. 8. The mode switching method for a mobile phone according to claim 1, wherein the receiving terminal switches the operation mode after the communication with the calling terminal is completed. . 9. The mode switching method for a mobile phone according to claim 1, wherein the receiving terminal can reject the mode switching when receiving control data from the calling terminal. Mobile phone mode switching method. 10. The method for switching a mode of a mobile telephone according to claim 1, wherein the transmitting terminal has means for notifying the user when receiving the reception completion information from the receiving terminal. Mode switching method for a mobile telephone. 11. The mode switching method for a mobile telephone according to claim 1, wherein the calling terminal sends out the limit data along with the control data, and the called terminal receives the limit data and operates for a predetermined time. Mode switching method for a mobile telephone.