COMMUNICATION CONTROL METHOD, USER TERMINAL, PROCESSOR, AND STORAGE MEDIUM

• US 20150156620A1
• Filed: 06/06/2013
• Published: 06/04/2015
• Est. Priority Date: 06/06/2012
• Status: Abandoned Application

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Morita, Kugo
• Application Number:
  US14/406,079
• Publication Number:
  US 20150156620A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

A communication control method used in a cellular mobile communication system supporting inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprises a step of continuously transmitting, by the user terminal, a search signal for discovering a communication partner of the inter-terminal communication in a constant period when starting searching for the communication partner.

Claims

1. A communication control method used in a cellular mobile communication system which comprises a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a step of continuously transmitting, by the user terminal, a search signal for discovering a communication partner of the inter-terminal communication in a constant period when starting searching for the communication partner.

2. The communication control method according to claim 1, further comprising:

a step of changing, by the user terminal, a transmission cycle of the search signal when a response signal for the search signal is not received in the constant period.

3. A user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a processor that performs a process of continuously transmitting a search signal for discovering a communication partner of the inter-terminal communication in a constant period when starting searching for the communication partner.

4. A processor provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein

the processor performs a process of continuously transmitting a search signal for discovering a communication partner of the inter-terminal communication in a constant period when starting searching for the communication partner.

5. A storage medium provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein,

the storage medium stores therein a program for causing the user terminal to perform a process of continuously transmitting a search signal for discovering a communication partner of the inter-terminal communication in a constant period when starting searching for the communication partner.

6. A communication control method used in a cellular mobile communication system which comprises a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a step of controlling, by the user terminal, transmission of a search signal for discovering a communication partner of the inter-terminal communication in response to a movement state of the user terminal.

7. The communication control method according to claim 6, wherein

the movement state includes a movement speed, and

the step of controlling comprises:

a step of changing a transmission cycle of the search signal in response to the movement speed.

8. The communication control method according to claim 7 comprising:

a step of stopping the transmission of the search signal, when the movement speed has exceeded a threshold value.

9. The communication control method according to claim 7, further comprising:

a step of calculating, by the user terminal, a movement speed of the user terminal in consideration of a movement speed of a moving body when the user terminal is within the moving body.

10. The communication control method according to claim 6, wherein

the movement state includes being moving and being stopping, and

the step of controlling comprises:

a step of continuously transmitting the search signal in a constant period, when the user terminal is transitioned from the being moving to the being stopping.

11. A user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a processor that performs a process of controlling transmission of a search signal for discovering a communication partner of the inter-terminal communication in response to a movement state of the user terminal.

12. A processor provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein

the processor performs a process of controlling transmission of a search signal for discovering a communication partner of the inter-terminal communication in response to a movement state of the user terminal.

13. A storage medium provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein,

the storage medium stores therein a program for causing the user terminal to perform a process of controlling transmission of a search signal for discovering a communication partner of the inter-terminal communication in response to a movement state of the user terminal.

14. A communication control method used in a cellular mobile communication system which comprises a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a step of attempting to perform, by the user terminal, reception of a search signal from another user terminal at a constant cycle, wherein the constant cycle is determined in response to a period in which the other user terminal continuously transmits the search signal.

15. A user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, comprising:

a processor that performs a process of attempting to perform reception of a search signal from another user terminal at a constant cycle determined in response to a period in which the other user terminal continuously transmits the search signal.

16. A processor provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein

the processor performs a process of attempting to perform reception of a search signal from another user terminal at a constant cycle determined in response to a period in which the other user terminal continuously transmits the search signal.

17. A storage medium provided in a user terminal performing inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state in which a radio connection with a network is established, wherein,

the storage medium stores therein a program for causing the user terminal to perform a process of attempting to perform reception of a search signal from another user terminal at a constant cycle determined in response to a period in which the other user terminal continuously transmits the search signal.