COMMUNICATION METHOD IN MOBILE COMMUNICATION SYSTEM

• US 20100304668A1
• Filed: 08/04/2008
• Published: 12/02/2010
• Est. Priority Date: 12/04/2007
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Hee Wook, Ahn, Do-Seob, Lee, Ho Jin, Kang, Kun Seok
• Granted Patent: US 8,396,411 B2
• Time in Patent Office: Days
• US Class Current: 455/12.1
• CPC Class Codes: H04H 20/08 among terminal devices
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04H 20/74 of satellite networks
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

The present invention relates to a communication method in a mobile communication system. An exemplary embodiment of the present invention provides a mobile satellite communication system having a complementary terrestrial component among various mobile communication systems. The mobile satellite communication system can simultaneously provide a communication service and a broadcasting service to a terminal according to integration between communication and broadcasting. Different signal transmission methods are used between the complementary terrestrial component and a satellite. Specifically, a time division duplex method and a frequency division duplex method are used together and resources are allocated. As a result, system throughput can be increased, and local broadcasting contents can be effectively transmitted to the terminal.

Claims

1. A communication method in a mobile communication system, in which one frame includes a first resource interval and a second resource interval and the second resource interval includes a first service interval and a second service interval, the communication method comprising:

providing a first service to a first terminal through the first resource interval;

providing a second service to the first terminal, a second terminal, and a complementary component during a first time interval of the first service interval included in the second resource interval; and

providing a third service to the complementary component through the second service interval of the second resource interval.

2. The communication method of claim 1, wherein:

the second terminal is located within the cell coverage of the complementary component; and

the first terminal is located outside the cell coverage of the complementary component.

3. The communication method of claim 2, wherein the providing of the second service includes allowing the complementary component to provide the second service to the second terminal through the first service interval during the first time interval.

4. The communication method of claim 3, wherein the providing of the second service further includes:

providing the second service to the complementary component, the first terminal, and the second terminal through the first service interval during the first time interval; and

allowing the complementary component to provide the second service to the second terminal during a second time interval after the first time interval.

5. The communication method of claim 2, wherein the providing of the third service includes allowing the complementary component to provide the third service to the second terminal, and the third service is provided to the second terminal using partial resources of the second time interval.

6. The communication method of claim 2, wherein the first resource interval and the second resource interval are allocated using different communication methods, respectively.

7. The communication method of claim 6, wherein:

the first service is a service that is provided to the first terminal through the first resource interval;

the second service is a global broadcasting service that is provided to the second terminal through the first service interval; and

the third service is a local broadcasting service that is provided to the second terminal through the second service interval.

8. The communication method of claim 7, wherein the first service interval is a resource interval in which the global broadcasting service is provided, and the second service interval is a resource interval in which the local broadcasting service corresponding to the complementary component is provided.

9. The communication method of claim 6, wherein the first resource interval is a resource interval that is allocated using a frequency division duplex method, and the second resource interval is a resource interval that is allocated using a time division duplex method.

10. A communication method using a mobile communication system, in which one frame includes a first resource interval and a second resource interval and the second resource interval includes a first service interval and a second service interval, the communication method comprising:

providing a symmetrical service to a first terminal through the first resource interval, the symmetrical service being a voice communication service;

providing a first service to the first terminal and a second terminal through the first service interval of the second resource interval, the first terminal being located outside the cell coverage of a complementary component, the second terminal being located within the cell coverage of the complementary component; and

providing a second service to the second terminal through the second service interval.

11. The communication method of claim 10, wherein the first resource interval includes an uplink interval and a downlink interval, and the providing of the first service includes:

transmitting contents for the first service to the complementary component and the first terminal through the downlink interval;

allowing the complementary component to transmit the contents for the first service to the first terminal through the same interval as the downlink interval; and

receiving the contents for the first service from the first terminal through the uplink interval.

12. The communication method of claim 11, further comprising:

transmitting the contents for the first service to the complementary component, the first terminal, and the second terminal through a first downlink interval of the downlink interval;

receiving the contents for the first service from the first terminal and the second terminal through the uplink interval; and

allowing the complementary component to transmit the contents for the first service to the first terminal through a second downlink interval after the uplink interval,

wherein a second service is provided to the second terminal during a partial interval of the second downlink interval.

13. The communication method of claim 10, wherein the second resource interval includes a plurality of uplink intervals and a plurality of downlink intervals, and the providing of the second service includes:

transmitting contents for the second service to the complementary component through a first downlink interval; and

receiving a signal transmitted from the complementary component through a first uplink interval.

14. The communication method of claim 13, further comprising:

allowing the complementary component to transmit the contents for the second service to the second terminal through a second downlink interval after the first uplink interval; and

transmitting a signal transmitted from the second terminal to the complementary component through a second uplink interval adjacent to the second downlink interval.

15. The communication method of claim 13, wherein the second resource interval is a resource interval that is allocated using a time division duplex method, the first service interval is an interval in which global broadcasting contents and data communication contents are transmitted, and the first service is a global broadcasting service and a data communication service.

16. The communication method of claim 10, wherein the first resource interval is a resource interval that is allocated using a frequency division duplex method.

17. The communication method of claim 10, wherein the second service interval is an interval in which local broadcasting contents and data communication contents are transmitted, and the second service is a local broadcasting service and a data communication service.