ENHANCED TDD FRAME STRUCTURE

• US 20090180410A1
• Filed: 01/12/2009
• Published: 07/16/2009
• Est. Priority Date: 01/11/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Sun, Li-Hsiang, Wang, Shu, Lee, Ki-Dong, Kim, Sang Gook
• Granted Patent: US 8,159,979 B2
• Time in Patent Office: Days
• US Class Current: 370/294
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0062 Avoidance of ingress interference, e.g. ham radio channels

Abstract

A method of providing uplink and downlink transmissions between a mobile terminal and a base station in a mobile communication system is provided. The method increases the flexibility and efficiency of a mobile communication system utilizing one or more relay entities and provides new frame structures to support legacy and new transmissions in a mobile communication system.

Claims

1. A method of providing uplink and downlink transmissions between a mobile terminal and a base station in a mobile communication system, the method comprising:

a relay entity of a first zone of the mobile communication system receiving an uplink transmission from at least one mobile station in the first zone and a downlink transmission from at least one base station in the first zone; and

the relay entity of the first zone broadcasting first information in the first zone, the first information comprising both the received uplink transmission and received downlink transmission from the first zone,

wherein, while the relay entity in the at least a first zone is broadcasting the first information, uplink and downlink transmissions are allowed only for good geometry mobile terminals in any communication zone of the mobile communication system in which the corresponding relay entity does not broadcast information.

2. The method of claim 1, further comprising a relay entity of a second zone of the mobile communication system receiving an uplink transmission from at least one mobile station in the second zone and a downlink transmission from at least one base station in the second zone;

and

the relay entity of the second zone broadcasting second information in the second zone, the second information comprising both the received uplink transmission and received downlink transmission from the second zone,

wherein the broadcast of the second information is synchronized with the broadcast of the first information.

3. The method of claim 1, wherein the relay entity of the first zone broadcasts the first information during a predefined time period.

4. A method of transmitting uplink data bursts in a mobile communication system comprising a plurality of mobile terminals, at least a first of the plurality of mobile terminals operating according to a first communications standard and at least a second of the plurality of mobile terminals operating according to a second communications standard, the method comprising:

receiving first information indicating correspondence between the at least a first of the plurality of mobile terminals and information to be transmitted in at least a first uplink data burst and a correspondence between the at least a second of the plurality of mobile terminals and information to be transmitted in at least a second uplink data burst; and

transmitting information in the at least first uplink data burst or the at least second uplink data burst according to the first information,

wherein the at least first uplink data burst or the at least second uplink data burst comprises only information from the at least a second of the plurality of mobile terminals.

5. The method of claim 4, wherein the at least first uplink data burst comprises information from both the at least a first of the plurality of mobile terminals and the at least a second of the plurality of mobile terminals.

6. The method of claim 4, wherein the at least first uplink data burst is transmitted before the at least second uplink data burst.

7. The method of claim 4, wherein the at least second uplink data burst is transmitted before the at least first uplink data burst.

8. The method of claim 4, wherein the at least first uplink data burst and the at least second uplink data burst are transmitted during the same time interval.

9. The method of claim 4, wherein the time period during which the at least first uplink data burst and the at least second uplink data burst are transmitted may be utilized by both the at least a first of the plurality of mobile terminals and the at least a second of the plurality of mobile terminals for providing information or making requests to the network.

10. The method of claim 4, further comprising receiving second information identifying at least one point in time at which the at least first uplink data burst or the at least second uplink data burst should be transmitted.

11. The method of claim 10, wherein transmitting information in the at least first uplink data burst or the at least second uplink data burst comprises utilizing the first information to determine a start point of the at least first uplink data burst or the at least second uplink data burst.

12. A method of receiving downlink data bursts in a mobile communication system comprising a plurality of mobile terminals, at least a first of the plurality of mobile terminals operating according to a first communications standard and at least a second of the plurality of mobile terminals operating according to a second communications standard, the method comprising:

receiving first information indicating correspondence between the at least a first of the plurality of mobile terminals and information in at least a first downlink data burst and a correspondence between the at least a second of the plurality of mobile terminals and information in at least a second downlink data burst;

receiving the at least first downlink data burst and the at least second downlink data burst;

processing information in the at least first downlink data burst or the at least second downlink data burst according to the first information,

wherein the at least first downlink data burst or the at least second downlink data burst comprises information that only the at least a second of the plurality of mobile terminals can process.

13. The method of claim 12, wherein the at least first downlink data burst comprises information that both the at least a first of the plurality of mobile terminals and the at least a second of the plurality of mobile terminals can process and the at least second downlink data burst comprises information that only the at least a second of the plurality of mobile terminals can process.

14. The method of claim 12, further comprising receiving second information identifying at least one point in time at which the at least first downlink data burst or the at least second downlink data burst should be received.

15. The method of claim 14, wherein processing information in the at least first downlink data burst or the at least second downlink data burst comprises utilizing the first information to determine a start point of the at least first downlink data burst or the at least second downlink data burst.

16. The method of claim 12, wherein the at least first uplink data burst is received before the at least second uplink data burst.

17. A method of transmitting uplink data bursts in a mobile communication system comprising a plurality of mobile terminals, at least a first of the plurality of mobile terminals operating according to a first communications standard and at least a second of the plurality of mobile terminals operating according to a second communications standard, the method comprising:

receiving first information indicating correspondence between the at least a first of the plurality of mobile terminals and information to be transmitted in a first uplink data burst;

receiving second information indicating correspondence between the at least a second of the plurality of mobile terminals and information to be transmitted in a second uplink data burst; and

transmitting information in either the first uplink data burst or the second uplink data burst according to the first information or the second information.

wherein the second uplink data burst comprises only information from the at least a second of the plurality of mobile terminals.

18. The method of claim 17, wherein the first uplink data burst is transmitted before the second uplink data burst.

19. The method of claim 17, wherein the second uplink data burst is transmitted before the first uplink data burst.

20. The method of claim 17, wherein the first uplink data burst and the second uplink data burst are transmitted during the same time interval.

21. The method of claim 17, further comprising receiving third information identifying at least one point in time at which the first uplink data burst or the second uplink data burst should be transmitted.

22. The method of claim 21, wherein transmitting information in either the first uplink data burst or the second uplink data burst comprises utilizing the first information to determine a start point of at least the first uplink data burst or the second uplink data burst.

23. The method of claim 17, wherein the time period during which the first uplink data burst and the second uplink data burst are transmitted may be utilized by both the at least a first of the plurality of mobile terminals and the at least a second of the plurality of mobile terminals for providing information or making requests to the network.

24. A method of receiving downlink data bursts in a mobile communication system comprising a plurality of mobile terminals, at least a first of the plurality of mobile terminals operating according to a first communications standard and at least a second of the plurality of mobile terminals operating according to a second communications standard, the method comprising:

receiving first information indicating correspondence between the at least a first of the plurality of mobile terminals and information in a first downlink data burst;

receiving second information indicating correspondence between the at least a second of the plurality of mobile terminals and information in a second downlink data burst;

receiving the first downlink data burst and the second data burst; and

processing information in either the first downlink data burst or the second downlink data burst according to either the first information or the second information,

wherein the second downlink data burst comprises information that only the at least a second of the plurality of mobile terminals can process.

25. The method of claim 24, wherein the first uplink data burst is received before the second uplink data burst.

26. The method of claim 24, further comprising receiving third information identifying at least one point in time at which the first downlink data burst or the second downlink data burst should be received.

27. The method of claim 26, wherein processing information in at least the first downlink data burst or the second downlink data burst comprises utilizing the first information to determine a start point of at least the first downlink data burst or the second downlink data burst.