WIRELESS COMMUNICATION DEVICE AND DATA RECEPTION METHOD

• US 20120015688A1
• Filed: 03/26/2010
• Published: 01/19/2012
• Est. Priority Date: 03/26/2009
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Mori, Daisuke
• Granted Patent: US 8,521,219 B2
• Time in Patent Office: Days
• US Class Current: 455/550.1
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A wireless communication device which can receive broadcast multi-casted data without sending a radio wave, and data reception method of the same. A mobile phone (1) is provided with a storage unit (34) which stores the time that BCMCS transmission takes place; a communication unit (31) which is compliant with CDMA2000_1x and EVDO which allows for acquisition of the channel of the BCMCS transmission; and a control unit (30) which performs control so that the communication unit (31) begins to receive BCMCS transmitted content data, using EVDO, at the time stored in the storage unit (34). When in a state where an instruction has been made to shift to a radio wave non-sending state in which radio waves are not sent, the control unit (30) does not use CDMA2000_1x when the content data is being received at the time stored in the storage unit (34).

Claims

1. A radio communication device that receives content data being broadcast via radio waves, the radio communication device comprising:

a first storage unit that stores time such broadcasting is performed;

a communication unit that is compatible with a first communication protocol that can capture a channel of the broadcasting, and a second communication protocol different from the first communication protocol; and

a control unit that controls the communication unit to start receiving the content data being broadcast, by using the first communication protocol, at the time stored in the first storage unit;

wherein the control unit does not use the second communication protocol when receiving the content data at the time stored in the first storage unit, in a state of having been instructed to transition to a non-radio-wave-transmission state in which radio waves are not transmitted.

2. The radio communication device according to claim 1,

wherein the control unit causes the communication unit to start scanning the channel by using the first communication protocol at time that is a first period of time before the time stored in the first storage unit.

3. The radio communication device according to claim 1,

wherein the content data being broadcast is data designated by way of broadcasting information transmitted in a second time cycle, on the channel.

4. The radio communication device according to claim 3,

wherein the communication unit captures the channel, and thereafter receives the broadcasting information by maintaining a continuous reception state for at least the second time on the channel, and

wherein the control unit starts receiving the content data being broadcast, based on the broadcasting information.

5. The radio communication device according to claim 1,

wherein, when the content data being broadcast is received by using the first communication protocol in the state of having been instructed to transition to the non-radio-wave-transmission state, the control unit controls the communication unit to not perform transmission.

6. The radio communication device according to claim 1,

wherein the control unit establishes a communication session in the non-radio-wave-transmission state by using a parameter obtained before being instructed to transition to the non-radio-wave-transmission state.

7. The radio communication device according to claim 1, further comprising a second storage unit for storing a schedule that is input,

wherein, in a state of having been instructed to transition to the non-radio-wave-transmission state, when detecting that reception time stored in the first storage unit has come for first content data, the control unit refers to the schedule stored in the second storage unit, and

wherein, in a case in which an event that is in progress at the reception time is registered, the control unit controls the communication unit to not receive the first content data if there is a possibility that the event may result in an operation involving transmission of radio waves before finish time of the broadcasting, and the control unit controls the communication unit to receive the first content data if there is not a possibility that the event may result in an operation involving transmission of radio waves before finish time of the broadcasting.

8. The radio communication device according to claim 7,

wherein the second storage unit stores data that indicates time of transitioning to the non-radio-wave-transmission state, and time of cancelling the non-radio-wave-transmission state, in association with the schedule, and

wherein the control unit determines that there is a possibility that an operation involving transmission of radio waves may occur at the time of cancelling the non-radio-wave-transmission state.

9. The radio communication device according to claim 7,

wherein the non-radio-wave-transmission state is a power-off state,

wherein the second storage unit stores data that indicates time of power-off and power-on of its own device in association with the schedule, and

wherein the control unit determines that there is a possibility that an operation involving transmission of radio waves may occur at time of switching from power-off to power-on.

10. The radio communication device according to claim 7,

wherein the communication unit obtains finish time of the broadcasting by prospectively identifying a period of time required to complete reception of the first content data.

11. The radio communication device according to claim 7,

wherein, in a case in which an event that is in progress at the reception time of the first content data is not registered, the control unit determines that there is a possibility that the operation involving transmission of radio waves may occur before the finish time of the broadcasting, and does not receive the first content data.

12. The radio communication device according to claim 7,

wherein, in a case in which the control unit does not receive the first content data based on determining that there is a possibility that the operation involving transmission of radio waves may occur before the finish time of the broadcasting, the control unit selects and receives second content data that is content data with no more than predetermined volume.

13. The radio communication device according to claim 1,

wherein the first communication protocol is a protocol exclusively used for data communication, and the second communication protocol is a voice communication protocol that also supports a voice call.

14. A data reception method in a radio communication device for receiving content data being broadcast via radio waves, the data reception method comprising the steps of:

storing time such broadcasting is performed;

communicating with a public communication network by using both of a first communication protocol that can capture a channel of the broadcasting, and a second communication protocol different from the first communication protocol; and

performing control so as to start receiving the content data being broadcast, by using the first communication protocol, at the time stored in the step of storing,

wherein the step of performing control does not use the second communication protocol when receiving the content data at the time stored in the step of storing, in a state of having been instructed to transition to a non-radio-wave-transmission state in which radio waves are not transmitted.

15. The data reception method according to claim 14,

wherein the step of performing control performs control so as to use only the first communication protocol when receiving the content data at the time stored in the step of storing, in a state of having been instructed to transition to a non-radio-wave-transmission state in which radio waves are not transmitted.

16. The data reception method according to claim 14,

wherein the first communication protocol is a protocol exclusively used for data communication, and the second communication protocol is a voice communication protocol that also supports a voice call.