METHOD FOR TRANSMITTING DATA USING FREQUENCY HOPPING SCHEME AND METHOD FOR DETERMINING A SUB-BAND FOR THE FREQUENCY HOPPING

• US 20090316758A1
• Filed: 01/09/2008
• Published: 12/24/2009
• Est. Priority Date: 01/09/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jung Hoon, Kim, Ki Jun, Ahn, Joon Kui, Yoon, Suk Hyon
• Granted Patent: US 8,483,257 B2
• Time in Patent Office: Days
• US Class Current: 375/135
• CPC Class Codes: H04B 1/7143 Arrangements for generation of hop patterns

Abstract

A frequency hopping scheme in a communication system using a plurality of sub-carriers is disclosed. A sub-band for frequency hopping is set and the frequency hopping scheme is applied using the set sub-band. The frequency hopping scheme is applied in the communication system by assigning a virtual index to a resource block including one or more sub-carriers and transforming the virtual index according to a specific rule to acquire a virtual index of a next resource block for the frequency hopping.

Claims

1. A method for transmitting data in a mobile communication system, comprising:

transmitting a first data through a first sub-band among a plurality of sub-bands to which a predetermined frequency hopping scheme is applied; and

transmitting a second data through a second sub-band among the plurality of sub-bands,

wherein the first sub-band and the second sub-band have a same size of bandwidth, and the first data and the second data are data for a same user.

2. The method according to claim 1, wherein the second sub-band is determined according to a hopping order defined with respect to the plurality of sub-bands to which the frequency hopping scheme is applied.

3. The method according to claim 1, wherein the first data and the second data are included in one data packet and are transmitted through a first slot and a second slot in a same transmission time interval (TTI), respectively.

4. The method according to claim 1, wherein the second data is transmitted in a TTI subsequent to a TTI in which the first data is transmitted.

5. The method according to claim 1, wherein the second data is a retransmission data of the first data.

6. The method according to claim 1, wherein the first data and the second data are transmitted through a part of the first sub-band and a part of the second sub-band, respectively.

7. The method according to claim 1, wherein the plurality of sub-bands to which the frequency hopping scheme is applied are determined asall sub-bands of one or more specific retransmission groups,a part of sub-bands of one or more specific retransmission groups, ora part of sub-bands of all retransmission groups.

8. The method according to claim 1, wherein the first data and the second data are transmitted according to the predetermined frequency hopping scheme without scheduling information about the predetermined frequency hopping scheme, if scheduling information instructing to transmit the first data and the second data through the sub-bands to which the frequency hopping scheme is applied is received.

9. A method for transmitting data in a mobile communication system, comprising:

transmitting a first data through a resource block having a first virtual index; and

transmitting a second data through a resource block having a second virtual index,

wherein each of the resource blocks has virtual index assigned to a corresponding node of a binary tree structure and the first data and the second data are data for a same user.

10. The method according to claim 9, wherein the second virtual index is acquired from the first virtual index according to a specific rule.

11. The method according to claim 9, wherein the first data and the second data are included in one data packet and are transmitted through a first slot and a second slot in a same TTI, respectively.

12. The method according to claim 9, wherein the second data is a retransmission data of the first data.

13. The method according to claim 9, wherein, when one or more resource blocks are allocated for transmission of the first data, the allocated one or more resource blocks are included in resource blocks having virtual indexes assigned to nodes belonging to a same upper node in the binary tree structure.

14. The method according to claim 13, further comprising receiving node index information.

15. The method according to claim 9, wherein the resource blocks are associated with a sub-band to which a frequency hopping scheme is applied, in the system band of the mobile communication system.

16. A method for transmitting data in a mobile communication system, comprising:

assigning virtual indexes to one or more resource blocks included in a sub-band, to which a frequency hopping scheme is applied, in a system band of the mobile communication system, by using a binary tree structure

transmitting first data through a resource block assigned a first virtual index; and

transmitting second data through a resource block assigned a second virtual index, the second virtual index being acquired by transforming the first virtual index according to a specific rule,

wherein the first data and the second data are data for the same user.