METHODS OF TRANSMITTING AND RECEIVING DATA IN MOBILE TRANSMISSION SYSTEM

• US 20100202382A1
• Filed: 09/11/2008
• Published: 08/12/2010
• Est. Priority Date: 09/13/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sung Jun, Lee, Young Dae, Yi, Seung June, Lee, Seon Don, Chun, Sung Duck
• Granted Patent: US 9,065,616 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

A method for transmitting and receiving data in a mobile communication system is disclosed. The data transmission method for allowing a transmission end of the mobile communication system to transmit data to at least one reception end via at least one physical channel includes, transmitting a reception indicator, which indicates whether at least one second physical channel is received, via a first physical channel, such that at least one reception end can determine whether the at least one second physical channel is received using the reception indicator, and transmitting data via a third physical channel controlled by the first physical channel. So, a sleeping time for reducing power consumption can be explicitly indicated by the above data communication method, such that power consumption required for transmitting and receiving data can be minimized.

Claims

1. A method of transmitting data from a transmission end to at least one reception end via at least one physical channel in a mobile communication system, the method comprising:

transmitting a reception indicator, which indicates whether at least one second physical channel is received, via a first physical channel, such that at least one reception end can determine whether the at least one second physical channel is received using the reception indicator; and

transmitting data via a third physical channel controlled by the first physical channel,

wherein the first physical channel and the at least one second physical channel are the same physical channels which have different transmission times.

2. The method according to claim 1, wherein the reception indicator includes at least one bit.

3. The method according to claim 1, further comprising:

if the reception indicator indicates the reception of the at least one second physical channel, allowing the at least one reception end to receive the at least one second physical channel at a transmission time indicated by the reception indicator, or allowing the at least one reception end to receive the at least one second physical channel at intervals of a predetermined transmission time of the at least one second physical channel until a current time reaches the predetermined transmission time indicated by the reception indicator.

4. The method according to claim 1, wherein the first physical channel and the third physical channel are comprised in a single subframe.

5. The method according to claim 1, wherein each of the first physical channel and the at least one second physical channel is a physical downlink control channel (PDCCH).

6. The method according to claim 1, further comprising:

transmitting at least one of paging control information, system information reception control information, and data transmission control information for the at least one reception end via at least one of the first physical channel and the at least one second physical channel.

7. The method according to claim 6, wherein the paging control information indicates whether there is a paging message for the at least one reception end.

8. The method according to claim 6, wherein the data transmission control information relates to a transmission format of the data transmitted via the third physical channel, or a reception method of the data.

9. The method according to claim 1, wherein the data transmitted via the third physical channel includes at least one of the reception indicator, a paging message, system information, data transmission information, and user data for the at least one reception end.

10. The method according to claim 1, wherein the third physical channel is a physical downlink shared channel (PDSCH).

11. A method of receiving data from a transmission end in a mobile communication system, the method comprising:

receiving a reception indicator, which indicates whether at least one second physical channel is received, via a first physical channel;

determining whether the at least one second physical channel will be received or not by referring to the reception indicator; and

receiving data via a third physical channel controlled by the first physical channel,

wherein the first physical channel and the at least one second physical channel are the same physical channels which have different transmission times.

12. The method according to claim 11, wherein the reception indicator includes at least one bit.

13. The method according to claim 11, further comprising:

if the reception indicator indicates the reception of the at least one second physical channel, receiving the at least one second physical channel transmitted at a transmission time indicated by the reception indicator, or receiving the at least one second physical channel at intervals of a predetermined transmission time of the at least one second physical channel until a current time reaches the predetermined transmission time indicated by the reception indicator.

14. The method according to claim 11, wherein the first physical channel and the third physical channel are comprised in a single subframe.

15. The method according to claim 11, wherein each of the first physical channel and the predetermined second physical channel is a physical downlink control channel (PDCCH).

16. The method according to claim 11, further comprising:

receiving at least one of paging control information, system information reception control information, and data transmission control information via at least one of the first physical channel and the at least one second physical channel.

17. The method according to claim 16, wherein the paging control information indicates whether there is a paging message for a reception end.

18. The method according to claim 16, wherein the data transmission control information relates to a transmission format of the data received via the third physical channel, or a reception method of the data.

19. The method according to claim 11, wherein the data received via the third physical channel includes at least one of the reception indicator, a paging message, system information, data transmission information, and user data for a reception end.

20. The method according to claim 11, wherein the third physical channel is a physical downlink shared channel (PDSCH).