System and mobile phone for determining using state of other mobile phones

1. Technical Field

The present disclosure relates to mobile communication technology, and particularly to a system and a mobile phone for determining a using state of one or more other mobile phones.

2. Description of the Related Art

Generally, mobile phones have four using states, namely a free state, a busy state, a power off state, and an out of service state. The free state of the mobile phone represents when the mobile phone is powered on but is not being used in a call. The busy state represents when the mobile phone is powered on and is being used in a call. The power off state represents when the mobile phone is powered off. The out of service state represents when the mobile phone is powered on but is not able to be used in a call at all, such as when the mobile phone can not communicate with a base station (BS) because the mobile phone is in an enclosed place.

When a caller makes a call to a mobile phone and the mobile phone is in the busy state, the power off state or the out of service state, the caller may simply have wasted his/her time. What is needed is a means to overcome these problems.

The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

FIG. 1 is a schematic diagram of a system for determining using states of a plurality of mobile phones, in accordance with an exemplary embodiment.

FIG. 2 is a detailed block diagram of part of the system of FIG. 1 .

FIG. 3 is a schematic view showing a user interface provided by one of the mobile phones of the system of FIG. 1 , in accordance with an exemplary embodiment.

FIG. 1 is a schematic diagram of a system for determining using states of a plurality of mobile phones, in accordance with an exemplary embodiment. The system 1 includes a plurality of mobile phones 10 communicatively connected with a mobile switching center (MSC) 20 via a base station (BS) 30 . The mobile phones 10 a - 10 d communicate with each other via the BS 30 .

Referring also to FIG. 2 , each mobile phone 10 includes a first communicating unit 11 , a storage unit 12 , a using state determining unit 13 , a control unit 14 , a second communicating unit 15 , a power supply 16 , a power switch 17 , and a display unit 18 . The power supply 16 is directly connected to the using state determining unit 13 , the control unit 14 , and the second communicating unit 15 . The other units excepting the using state determining unit 13 , the control unit 14 , and the first communicating unit 11 are connected to the power supply through the power switch 17 . If the power switch 17 is turned on in response to a user's operation, the power supply 16 powers the mobile phone 10 including all the above-mentioned units. If the power switch 17 is turned off in response to a user's operation, the power supply 16 only powers the second communicating unit 15 , the using state determining unit 13 , and the control unit 14 .

Taking the mobile phone 10 a as an example, the storage unit 12 stores an address list including information on contacts. The information on contacts includes information on the user of the mobile phone 10 a and a number of contacts of the user of the mobile phone 10 a . In the embodiment, each item of contact information includes a contact identification (ID) and a current using state of a respective one of the mobile phones 10 a - 10 d . The contact ID is for identifying the mobile phone 10 of the contact, and may be a user name, a telephone number, and so on. The using states of the mobile phones 10 a - 10 d include a free state, a busy state, a power off state, an out of service state, and so on. The first communicating unit 11 is configured for communicating with another mobile phone 10 b - 10 d via the BS 30 if the user of the mobile phone 10 a is undergoing a telephone call when the mobile phone 10 is powered on. The using state determining unit 13 periodically determines the using state of the mobile phone 10 by monitoring the first communicating unit 11 and the power switch 17 .

For example, the using state determining unit 13 determines that the using state of the mobile phone 10 a is the free state if the power switch 17 is turned on and the first communicating unit 11 can communicate with the BS 30 only for a limited period of time. The using state determining unit 13 determines that the using state of the mobile phone 10 a is the busy state if the power switch 17 is turned on and the first communicating unit 15 communicates with another mobile phone 10 b - 10 d via the BS 30 for a period of time. The using state determining unit 13 determines that the using state of the mobile phone 10 a is the power off state if the power switch 17 is turned off. The using state determining unit 13 determines that the using state of the mobile phone 10 a is the out of service state if the power switch 17 is turned on and the first communicating unit 11 can not communicate with the BS 30 for any period of time at all, such as when the first communicating unit 11 or the BS 30 is malfunctioning.

The second communicating unit 15 is configured for communicating with the MSC 20 via the BS 30 . The control unit 14 obtains the using state of the mobile phone 10 a determined by the using state determining unit 13 , and controls the second communicating unit 15 to transmit a communication signal containing the contact ID and the using state of the mobile phone 10 a to the MSC 20 via the BS 30 . In the embodiment, the control unit 14 controls the second communicating unit 15 to transmit the communication signal to the MSC 20 via the BS 30 only when a current using state determined by the using state determining unit 13 is different from a previous using state determined by the using state determining unit 13 last time.

The MSC 20 includes a control unit 21 , a communicating unit 22 , and a database unit 23 . The database unit 23 includes a number of items of user information of the mobile phones 10 a - 10 d . In the embodiment, each item of user information includes a contact ID such as a user name or a telephone number, and a using state of the respective mobile phone 10 . Taking the mobile phone 10 a as an example, the control unit 21 receives the communication signal transmitted by the mobile phone 10 a via the communicating unit 22 , analyzes the communication signal to determine the contact ID and the using state contained in the communication signal, and updates the using state of the corresponding item of user information in the database unit 23 according to the contact ID and the using state contained in the communication signal.

Taking the mobile phone 10 a as an example, the mobile phone 10 a further pre-stores the using states of the mobile phones 10 b - 10 d , whose contact information is stored in the address list of the mobile phone 10 a . In the embodiment, the control unit 14 of the mobile phone 10 a periodically controls the second communicating unit 15 to transmit a communication signal containing the contact IDs of the mobile phones 10 b - 10 d to the MSC 20 via the BS 30 . The control unit 21 of the MSC 20 analyzes the communication signal to determine the contact IDs, and determines the using states of the mobile phones 10 b - 10 d corresponding to the determined contact IDs from the corresponding items of user information in the database unit 23 . Then the control unit 21 of the MSC 20 controls the communicating unit 22 to transmit the contact IDs and the corresponding using states of the mobile phones 10 b - 10 d to the mobile phone 10 a . The mobile phone 10 a receives the contact IDs and the corresponding using states transmitted by the MSC 20 via the second communicating unit 15 . The using state determining unit 13 of the mobile phone 10 a updates the using states of the contact IDs in the address list stored in the storage unit 12 with the using states of the mobile phones 10 b - 10 d transmitted from the MSC 20 .

Referring to FIG. 3 , this shows an exemplary user interface provided by the display unit 18 of any of the mobile phones 10 . Taking the mobile phone 10 a as an example, the user interface displays the using states of a plurality of contacts in the address list stored in the mobile phone 10 a . The control unit 14 of the mobile phone 10 a controls the displaying of the using states of the contact IDs of the mobile phones 10 b - 10 d on the display unit 18 when the address list is opened. For example, if the using states of the mobile phones 10 b - 10 d respectively are the free state, the busy state, and the power off state, and the contact IDs of the mobile phones 10 b - 10 d respectively are “Charles,” “Mandy,” and “Miles,” then when the address list is opened, the control unit 14 of the mobile phone 10 a displays each contact ID and the corresponding using state of each contact ID on the display unit 18 , as seen in FIG. 3 . Thereby, the user of the mobile phone 10 a can know the using states of the mobile phones 10 b - 10 d listed in the address list, and can decide whether to make a call and who to call among the mobile phones 10 b - 10 d according to the using states.

It is understood that the present disclosure may be embodied in other forms without departing from the spirit thereof. Thus, the present examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the disclosure is not to be limited to the details given herein.