JP3779670B2 - Mobile communication terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the increase in size of an apparatus by suppressing the increase in capacity of a power circuit. <P>SOLUTION: In an operation mode wherein W-CDMA method wireless communication and BT method wireless communication are executed in parallel, a transmission slot period and a reception slot period by the BT method are shifted from a transmission slot period and a reception slot period of the W- CDMA method. <P>COPYRIGHT: (C)2003,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile communication terminal device such as a mobile phone device or a portable information terminal device, and more particularly to a mobile communication terminal device that performs wireless communication selectively using a plurality of wireless communication methods.
[0002]
[Prior art]
In recent years, various mobile communication terminal devices have been developed and used with the development of wireless communication technology and the increase of communication needs. Among them, there is a terminal device that can perform communication by selectively using a plurality of wireless communication methods.
[0003]
For example, one terminal device selectively uses a TDMA (Time Division Multiple Access) method and an AMPS (Advanced Mobile Phone System) method, which is one of FDMA (Frequency Division Multiple Access) methods, There are known ones that selectively use the PDC (Personal Digital Cellular) method and PHS (Personal Handyphone System) method, and those that selectively use the CDMA method and the FDMA method. The W-CDMA (Wideband-Code Division Multiple Access) system, which is being standardized recently by IMT2000, and the BT (Bluetooth) system, which is one of the short-range wireless communication standards using the ISM (Industry Science Medical) band, Those that selectively use are considered.
[0004]
[Problems to be solved by the invention]
However, this type of terminal device that has been used or considered in the past generally consumes a large amount of power because it is equipped with a unique circuit for each wireless communication system, and as a result, compared with a device having only one wireless communication system. The battery life is significantly shortened. In addition, a power supply circuit with a large power supply capacity must be prepared in preparation for using a plurality of wireless communication systems at the same time. For this reason, an increase in the size of the apparatus was inevitable.
[0005]
The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a mobile communication terminal device capable of suppressing an increase in capacity of a power supply circuit and preventing an increase in size of the device.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the first invention provides a first wireless communication system in which a wireless communication period depends on a communication partner apparatus, and a second wireless communication system in which the wireless communication period can be arbitrarily set by the own apparatus, A mobile communication terminal apparatus that performs wireless communication selectively using a first communication period setting unit and a second communication period setting unit. Then, the first communication period setting means detects the start timing of the standby operation by the first wireless communication system, and starts the standby operation period by the second wireless communication system based on this detection timing. By doing so, at least a part of the standby operation period according to the second wireless communication scheme is made to coincide with the standby operation period according to the first wireless communication scheme, and the second communication period setting means causes the second communication period setting means to The wireless communication period according to the wireless communication method is set differently from the wireless communication period according to the first wireless communication method.
According to a second aspect of the present invention, the first communication period setting means starts the standby operation by the second wireless communication method in synchronization with the standby operation start timing by the first wireless communication method. At least a part of the standby operation period according to the second wireless communication method is made to coincide with the standby operation period according to the first wireless communication method, and the second communication period setting means performs wireless communication according to the second wireless communication method. The communication period is set different from the wireless communication period according to the first wireless communication method.
[0007]
Specifically, the communication period setting means is configured to set the timing of the radio communication slot according to the second radio communication scheme in synchronization with the end timing of the radio communication slot according to the first radio communication scheme. .
[0008]
Therefore, according to the first and second inventions, the following operational effects can be achieved.
(1) At least a part of the standby operation by the second wireless communication system is performed within the standby operation period period by the first wireless communication system. For this reason, the standby operation of each wireless communication method is comprehensively controlled as compared with the case where the standby operation by the second wireless communication method is completely independent of the standby operation by the first wireless communication method. The operation time of the circuit can be shortened, thereby reducing the power consumption of the control circuit and extending the battery life accordingly.
(2) The wireless communication operation is performed so that the operation by the second wireless communication method does not overlap with the operation of the first wireless communication method in terms of time. For this reason, the power supply circuit does not need to supply power to both the wireless circuit for the first wireless communication system and the wireless circuit for the second wireless communication system at the same time, and the power supply capacity for supplying power to one of the wireless circuits It will be sufficient to have only. Therefore, an increase in the capacity of the power supply circuit can be suppressed, so that the power supply circuit is small and no special heat generation countermeasure is required. For this reason, the apparatus can be made small and inexpensive.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing an embodiment of a mobile communication system using a mobile communication terminal apparatus according to the present invention.
[0010]
The mobile phone MS has a wireless communication function using a W-CDMA (Wideband-Code Division Multiple Access) method and a wireless communication function using a BT (Bluetooth) method. The W-CDMA system enables high-speed and large-capacity multimedia mobile communication using a bandwidth of, for example, 5 MHz in the 2 GHz band, and is synchronized with the base stations BS distributed in the service area. Communication is performed after taking A CDMA system is used as a radio access system between a base station and a mobile station, and DS-FDD (Direct Sequence-Frequency Division Duplex) and MC-FDD (Multi Carrier- Three methods, Frequency Division Duplex) and TDD (Time Division Duplex) are selectively used.
[0011]
On the other hand, the BT system uses the 2.4 GHz band ISM band to perform wireless communication over a short distance of 10 m or less with a weak radio wave of 10 mW (maximum 100 mW). It is used as a method for connecting between devices and between a mobile phone MS and a notebook personal computer PC. In the BT method, a frequency hopping method in which a hop frequency is set to 1600 hops / sec is used as a wireless transmission method so as to operate even in a noisy environment. In addition, wireless communication is possible with a communication partner using an asynchronous channel, and the transfer rate is 1 Mbps as a whole.
[0012]
Furthermore, a maximum of 8 devices can be connected within a range of use within 10 m. These devices form a network called a piconet. One device functions as a master and the other devices function as slaves. In a device in the piconet, connection authentication is performed by a personal identification number called a PIN (Personal Identification Number) code.
[0013]
By the way, a mobile communication terminal apparatus provided with two wireless communication systems such as the W-CDMA system and the BT system is configured as follows, for example. FIG. 2 is a circuit block diagram showing the configuration.
[0014]
That is, this apparatus includes a control unit 1, a W-CDMA radio unit 2, and a call unit 3, and further, based on outputs of a BT radio unit 4, an image processing unit 5, and a battery 61. A power supply circuit 6 that generates an operating voltage Vcc and a power supply control unit 7 are provided.
[0015]
The control unit 1 includes a main control circuit 11 having a CPU and a memory 12. The main control circuit 11 controls each part in the apparatus to perform a plurality of types of wireless communication modes based on the W-CDMA system, a plurality of types of wireless communication modes based on the BT system, and non-communication operations such as voice recording / playback. Centrally control the mode. The memory 12 is used for storing data to be transmitted and received data by the W-CDMA system and the BT system.
[0016]
The W-CDMA radio unit 2 includes a W-CDMA radio unit 21 and a voltage control unit 22. The W-CDMA radio unit 21 transmits / receives CDMA signals to / from the base station BS via the antenna 23 by the W-CDMA method. The chip rate of the spreading code is set to 4.096 Mcps, and the QPSK system is used as the primary modulation system. The voltage control unit 22 controls the transmission level of the CDMA signal transmitted by the W-CDMA radio unit 21 in accordance with an instruction from the main control circuit 11.
[0017]
The call unit 3 includes a voice codec (CODEC) unit 31, a microphone 32, and a receiver 33. The audio codec unit 31 encodes the transmission audio signal input from the microphone 32 according to a predetermined audio encoding method, and receives the reception signal input from the W-CDMA radio unit 21 via the main control circuit 11. It decodes and converts into a received signal, and a loud sound is output from the receiver 33.
[0018]
The BT radio unit 4 transmits and receives radio signals to and from the personal computer PC by the BT method. Reference numeral 41 denotes an antenna used for transmitting and receiving a radio signal by the BT method.
[0019]
The image processing unit 5 includes an image processing unit 51, a camera 52 using a CCD or CMOS solid-state imaging device, and a display unit 53 using a liquid crystal (LCD). The image processing unit 51 performs encoding processing such as encoding on the image signal captured by the camera 52, and uses the image signal for television (TV) telephone communication, image data communication, and the like using the W-CDMA system. Therefore, input to the control unit 1. At the same time, the received image data or the image data stored in the memory 12 is decoded and displayed on the display unit 53.
[0020]
The power supply control unit 7 includes a power supply control table that stores on / off states of power supply to each circuit unit in association with all operation modes of the apparatus. FIG. 3 shows an example of the configuration of this power supply control table. Based on the operation mode notified from the main control circuit 11 and the contents of the power supply control table, the power supply to the control unit 1, the radio unit 2, the call unit 3, the BT radio unit 4, and the image processing unit 5 is supplied. The operation voltage Vcc output from the circuit 61 is individually turned on and off.
[0021]
Next, the power supply control operation of the apparatus configured as described above will be described. 4 to 7 are flowcharts showing the power supply control procedure and the control content by the power supply control unit 7.
[0022]
In the standby state, the power supply control unit 7 is notified of the W-CDMA communication operation from the main control circuit 11 or the BT communication operation mode in steps 4a, 4b, and 4c, respectively, as shown in FIG. It is repeatedly monitored whether a non-communication operation mode has been notified.
[0023]
Now, assume that, for example, when the apparatus starts a W-CDMA communication operation in this state, the main control circuit 11 is notified of the W-CDMA communication operation mode. Then, the power supply control unit 7 performs W-CDMA power supply control as follows. That is, as shown in FIG. 5, first, in step 5a, the type of communication operation mode is determined.
[0024]
As a result of this determination, if the type of communication operation mode to be performed is “W-CDMA voice communication”, for example, the W-CDMA voice communication operation is performed in step 5b based on the stored contents of the power supply control table. For this purpose, power is supplied to the minimum necessary circuit portion. At the same time, in step 5c, the power supply to the circuit unit that is not necessary for the W-CDMA voice communication operation is turned off or the power supply is greatly reduced. Specifically, power is supplied to the display unit 53, the audio codec unit 31, the microphone 32, the receiver 33, the W-CDMA radio unit 21, and the voltage control unit 22, respectively, while the image processing unit 51, the camera 52, and the BT. The power supply to the wireless unit 4 is turned off or the power supply is greatly reduced.
[0025]
In the case of “W-CDMA video phone”, in step 5d, the image processing unit 51, the display unit 53, the camera 52, the audio codec unit 31, the microphone 32, the receiver 33, the W-CDMA radio unit 21, and the voltage Power is supplied to the control unit 22 respectively, while the power supply to the BT wireless unit 4 is turned off in step 5e, or the power supply is greatly reduced.
[0026]
Further, in the case of “W-CDMA text mail transmission / reception”, power is supplied to the display unit 53, the W-CDMA radio unit 21, and the voltage control unit 22 in step 5f, while the image processing unit is processed in step 5g. 51, the power supply to the camera 52, the audio codec unit 31, the microphone 32, the receiver 33, and the BT wireless unit 4 is turned off or the power supply is greatly reduced.
[0027]
In the case of “image data communication by W-CDMA”, power is supplied to the image processing unit 51, the camera 52, the display unit 53, the W-CDMA wireless unit 21, and the voltage control unit 22 in step 5h. On the other hand, in step 5i, the power supply to the audio codec unit 31, the microphone 32, the receiver 33, and the BT wireless unit 4 is turned off or the power supply is greatly reduced.
[0028]
Similarly, in the case of “Internet browsing by W-CDMA”, power is supplied to the image processing unit 51, the display unit 53, the W-CDMA wireless unit 21, and the voltage control unit 22 in step 5j, respectively. In step 5k, the power supply to the camera 52, the audio codec unit 31, the microphone 32, the receiver 33, and the BT wireless unit 4 is turned off or the power supply is greatly reduced.
[0029]
Thus, optimal power supply control to each circuit unit in each communication operation mode of the W-CDMA system is performed.
[0030]
Next, when the apparatus starts a BT communication operation with the personal computer PC, the main control circuit 11 is notified of the BT communication operation mode. If it does so, the electric power feeding control part 7 will perform BT type | system | group electric power feeding control as follows. That is, as shown in FIG. 6, first, in step 6a, the type of communication operation mode is determined.
[0031]
As a result of this determination, if the type of communication operation mode to be performed is “voice communication by BT”, for example, at least in order to perform the BT voice communication operation in step 6b based on the stored contents of the power supply control table. Power is supplied to the necessary circuit units. At the same time, in step 6c, the power supply to the circuit unit that is not necessary for the BT voice communication operation is turned off or the power supply is greatly reduced. Specifically, power is supplied to the display unit 53, the audio codec unit 31, the microphone 32, the receiver 33, and the BT radio unit 4, while the image processing unit 51, the camera 52, the W-CDMA radio unit 21, and the voltage are supplied. The power supply to the control unit 22 is turned off or the power supply is greatly reduced.
[0032]
In the case of “data communication between the mobile terminal device MS and the personal computer PC using BT”, power is supplied to the display unit 53 and the BT radio unit 4 in step 6d, while the step is performed. In 6e, the power supply to the image processing unit 51, the camera 52, the audio codec unit 31, the microphone 32, the receiver 33, the W-CDMA wireless unit 21 and the voltage control unit 22 is turned off or the power supply is greatly reduced.
[0033]
Similarly, in the case of “information transfer display of mobile terminal device MS using BT”, for example, information indicating an operation state such as reception quality of the mobile terminal device MS or a remaining battery level is transferred to the personal computer PC and displayed. In step 6f, power is supplied only to the BT radio unit 4, while in step 6g, the image processing unit 51, the display unit 53, the camera 52, the audio codec unit 31, the microphone 32, the receiver 33, W-CDMA. The power supply to the radio unit 21 and the voltage control unit 22 is turned off or the power supply is greatly reduced.
Thus, optimum power feeding control to each circuit unit in each communication operation mode of the BT system is performed.
[0034]
Finally, it is assumed that the non-communication operation mode is notified from the main control circuit 11 when the apparatus starts the operation mode without communication. Then, the power supply control unit 7 executes non-communication power supply control as follows. That is, as shown in FIG. 7, first, in step 7a, the type of operation mode is determined.
[0035]
If the result of this determination is that the type of operation mode to be performed is “moving image capture / reproduction”, for example, the operation image is captured or reproduced in step 7b based on the stored contents of the power supply control table. Power is supplied to the minimum necessary circuit part. At the same time, in step 7c, the power supply to the circuit unit that is not required for the moving image capturing or reproducing operation is turned off or the power supply is greatly reduced. Specifically, power is supplied to the image processing unit 51, the camera 52, the display unit 53, the audio codec unit 31, the microphone 32, and the receiver 33, while the BT radio unit 4, the W-CDMA radio unit 21, and the voltage are supplied. The power supply to the control unit 22 is turned off or the power supply is greatly reduced.
[0036]
In the case of “audio recording / playback operation”, power is supplied to the display unit 53, the audio codec unit 31, the microphone 32, and the receiver 33 in step 7d, while the image processing unit 51, The power supply to the camera 52, the BT wireless unit 4, the W-CDMA wireless unit 21, and the voltage control unit 22 is turned off or the power supply is greatly reduced.
Thus, optimum power supply control is performed for each non-communication operation mode.
[0037]
As described above, in this embodiment, the power supply control unit 7 including the power supply control table is provided, and power supply to each circuit unit is turned on / off in the power supply control table 7 in association with all operation modes of the apparatus. I remember the state. Prior to the operation, when the operation mode is notified from the main control circuit 11, the minimum necessary for executing the operation mode based on the operation mode and the stored contents of the power supply control table 7. The output of the power supply circuit 6 is fed only to these circuit parts, and the feeding to the other circuit parts is cut off or reduced.
[0038]
Therefore, necessary and sufficient power supply is always performed for each operation mode. For this reason, in the apparatus that selectively uses the two wireless communication systems such as the W-CDMA system and the BT system, wasteful power consumption can be reduced and the battery life can be extended.
[0039]
In addition, the mobile communication terminal apparatus according to an embodiment of the present invention has a W-CDMA standby operation period that depends on the timing of a frame transmitted by the base station, while the BT standby operation period is self-dependent. Focusing on the fact that it can be set arbitrarily in the device, the operation period of the CPU of the main control circuit is shortened by setting the standby operation period by the BT method to coincide with the standby operation period by the W-CDMA method. It has a function to reduce the power consumption.
[0040]
FIG. 8 is a circuit block diagram of the cellular phone device MS mainly showing this function. In the figure, the same parts as those in FIG.
[0041]
The main control circuit 11 is newly provided with a standby period setting control unit 111. This standby period setting control means 111 monitors the rising edge of the standby operation period by the W-CDMA system during the intermittent reception operation during standby, and waits for the BT system in synchronization with the detection timing of this rising edge. To start. Then, the BT standby operation period is terminated in synchronization with the falling edge of the W-CDMA standby operation period.
[0042]
With such a configuration, the CPU in the main control circuit 11 is in a sleep state during the reception OFF period of the intermittent reception operation. In this state, when the standby operation period set with the base station BS is reached, the main control circuit 11 shifts from step 9a to step 9b as shown in FIG. In step 9c, a standby operation by the W-CDMA system is started. At this time, when the start timing of the standby operation by the W-CDMA system is detected at step 9d, the standby operation by the BT system is started at step 9e as shown in FIG. When the end timing of the W-CDMA standby operation is reached, both the W-CDMA standby operation and the BT standby operation are ended, and the CPU is returned to the sleep state.
[0043]
Therefore, in this embodiment, the standby operation by the BT system is performed in parallel within the standby operation period of the W-CDMA system. For this reason, the operation period of the CPU is limited to the standby operation period of the W-CDMA system. As a result, when the standby operation of the BT system and the standby operation of the W-CDMA system are performed in different periods, respectively. In comparison with the above, the power consumption of the CPU is reduced, and the battery life can be extended accordingly.
[0044]
Note that if the standby operation by the BT method and the standby operation by the W-CDMA method are performed in parallel, the processing load of the CPU increases. However, since the processing amount of the standby operation is generally small, the increase in power consumption correspondingly increases. Slightly suppressed.
[0045]
Furthermore, the mobile communication terminal apparatus according to an embodiment of the present invention can perform the transmission slot period and reception by the BT method in the operation mode in which the wireless communication by the W-CDMA method and the wireless communication by the BT method are executed in parallel. The slot period is set so as to be shifted from the transmission slot period and the reception slot period according to the W-CDMA system, thereby preventing the W-CDMA radio unit 21 and the BT radio unit 4 from operating at the same time. It also has a function of making it unnecessary to increase the capacity of the circuit 6.
[0046]
FIG. 11 is a circuit block diagram of the cellular phone device MS mainly showing this function. In the figure, the same parts as those in FIGS. 2 and 8 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0047]
The main control circuit 11 is newly provided with transmission / reception period setting control means 112. The transmission / reception period setting control means 112 monitors the falling edges of the transmission slot and the reception slot according to the W-CDMA scheme when performing the wireless communication according to the W-CDMA scheme and the radio communication according to the BT scheme in parallel. The transmission slot and the reception slot according to the BT method are started in synchronization with the detection timing of the falling edge.
[0048]
With this configuration, when the wireless transmission operation by the W-CDMA system is started, the main control circuit 11 shifts from step 12a to step 12b as shown in FIG. When the falling edge is detected, the timing of the BT transmission slot is generated in step 12c. Also, during the wireless reception period by W-CDMA, the falling edge of the W-CDMA reception slot is monitored in step 12d, and when the falling edge is detected, the timing of the BT system reception slot is generated in step 12e. .
[0049]
Then, according to the transmission / reception slot timing set in this way, in the device, each wireless communication operation by the W-CDMA method and the BT method is performed in step 12f. This wireless communication operation is repeated until the end of communication is detected in step 12g. FIG. 13 shows the relationship between the slot timings of the transmission / reception operation by the W-CDMA method and the transmission / reception operation by the BT method described above.
[0050]
Therefore, according to such a configuration, the slot timing of the transmission / reception operation according to the BT scheme is set to be different from the slot timing of the transmission / reception operation according to the W-CDMA scheme, so the W-CDMA radio unit 21 and the BT radio unit 4 At the same time, it is not necessary to supply operating power, thereby making it unnecessary to increase the capacity of the power supply circuit 6 and to make the power supply circuit larger and to take measures against heat generation in the peripheral circuit portion. Therefore, the enlargement of the apparatus can be prevented.
[0051]
The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the mobile phone device MS provided with two wireless communication methods called the W-CDMA method and the BT method has been described as an example. However, the mobile communication terminal device provided with other wireless communication methods is also described. The present invention is applicable.
[0052]
In the above embodiment, the rising edge of the standby operation period by W-CDMA is detected, and the standby operation period by the BT method is set in synchronization with this detection timing. The timing information of the operation period may be stored in advance, and the standby operation period by the BT method may be set based on this timing information.
[0053]
The above operation can be similarly applied to the transmission / reception slot timing setting method described in the above embodiment. That is, the transmission slot timing and reception slot timing by W-CDMA are stored in advance, and the transmission slot timing and reception slot timing by the BT system are set based on these timing information.
[0054]
In addition, the type and configuration of the mobile communication terminal device, the type of operation mode, the procedure and content of power supply control, and the like can be variously modified without departing from the scope of the present invention.
[0055]
【The invention's effect】
As described above in detail, in the present invention, the first communication period setting means detects the start timing of the standby operation by the first wireless communication system, and the second wireless communication system based on this detection timing. The standby operation period according to the second wireless communication method is started to cause at least a part of the standby operation period according to the second wireless communication method to coincide with the standby operation period according to the first wireless communication method, or according to the second wireless communication method By starting the standby operation in synchronization with the standby operation start timing of the first wireless communication method, at least a part of the standby operation period of the second wireless communication method is waited for by the first wireless communication method. Match with the receiving operation period. At the same time, the second communication period setting means makes the wireless communication period based on the second wireless communication system different from the wireless communication period based on the first wireless communication system.
Therefore, according to the present invention, it is possible to provide a mobile communication terminal apparatus that can suppress an increase in capacity of the power supply circuit and prevent an increase in the size of the apparatus.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an example of a mobile communication system using a mobile communication terminal apparatus according to the present invention.
FIG. 2 is a circuit block diagram showing a first configuration of a mobile phone device which is an embodiment of a mobile communication terminal device according to the present invention.
FIG. 3 is a view showing stored contents of a power supply control table provided in the apparatus shown in FIG. 2;
4 is a flowchart showing an operation mode determination procedure by a power supply control unit of the apparatus shown in FIG. 2;
FIG. 5 is a flowchart showing a power supply control procedure and details of a W-CDMA system operation mode in the apparatus shown in FIG. 2;
6 is a flowchart showing a power supply control procedure and its contents in a BT system operation mode in the apparatus shown in FIG. 2;
7 is a flowchart showing a power supply control procedure and details of a non-communication system operation mode in the apparatus shown in FIG. 2;
FIG. 8 is a circuit block diagram showing a second configuration of the mobile phone device which is an embodiment of the mobile communication terminal device according to the present invention.
FIG. 9 is a flowchart showing a standby period setting control procedure and its contents in the apparatus shown in FIG. 8;
10 is a timing chart showing a standby period setting operation in the apparatus shown in FIG. 8. FIG.
FIG. 11 is a circuit block diagram of a mobile phone device showing a third configuration of the mobile phone device which is an embodiment of the mobile communication terminal device according to the present invention.
12 is a flowchart showing a transmission / reception period setting control procedure and its contents in the apparatus shown in FIG. 11;
13 is a timing chart showing a transmission / reception slot period setting operation in the apparatus shown in FIG. 11. FIG.
[Explanation of symbols]
BS: Base station for W-CDMA system
MS ... Mobile phone device
PC ... Personal computer
1 ... Control unit
2 ... Wireless unit for W-CDMA
3 ... Call unit
4 ... BT radio section
5. Image processing unit
6 ... Power circuit
7 ... Feed control unit
11 ... Main control circuit
12 ... Memory
21 ... W-CDMA radio unit
22 ... Voltage controller
23. Antenna for W-CDMA communication
31 ... Audio codec
32 ... Microphone
33 ... Receiver
41 ... Antenna for BT communication
51. Image processing unit
52 ... Camera
53. Display section
61 ... Battery
111 ... Standby period setting control means
112 ... Transmission / reception period setting control means

Claims (3)

Mobile communication in which wireless communication is performed by selectively using a first wireless communication method in which a wireless communication period depends on a communication partner device and a second wireless communication method in which the wireless communication period can be arbitrarily set by the own device In the terminal device,
The second wireless communication method is detected by detecting a start timing of the standby operation by the first wireless communication method and starting a standby operation period by the second wireless communication method based on the detection timing. First communication period setting means for matching at least a part of the standby operation period by the standby operation period of the first wireless communication method;
A mobile communication terminal apparatus comprising: a second communication period setting unit configured to set a radio communication period according to the second radio communication system different from a radio communication period according to the first radio communication system . Mobile communication in which wireless communication is performed by selectively using a first wireless communication method in which a wireless communication period depends on a communication partner device and a second wireless communication method in which the wireless communication period can be arbitrarily set by the own device In the terminal device,
By starting the standby operation by the second wireless communication method in synchronization with the standby operation start timing by the first wireless communication method, at least a part of the standby operation period by the second wireless communication method is obtained. First communication period setting means for matching with a standby operation period according to the first wireless communication method;
A mobile communication terminal apparatus comprising: a second communication period setting unit configured to set a radio communication period according to the second radio communication system different from a radio communication period according to the first radio communication system .   The second communication period setting means sets the timing of the radio communication slot according to the second radio communication scheme in synchronization with the end timing of the radio communication slot according to the first radio communication scheme. The mobile communication terminal device according to claim 1 or 2.

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