METHOD FOR ALLOCATING CONTROL CHANNEL

• US 20110002293A1
• Filed: 02/27/2009
• Published: 01/06/2011
• Est. Priority Date: 02/27/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yuk, Young Soo, Kim, Jeong Ki, Ryu, Ki Seon, Lee, Young Seob
• Granted Patent: US 8,848,627 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A method for allocating a submap is disclosed. The method includes configuring a subframe including one or more resource areas according to a size of the submap, allocating the submap and a control header including subframe configuration information and submap information to the one or more resource areas, and transmitting the control header.

Claims

1. A method for allocating a submap, comprising:

configuring a subframe including one or more resource areas according to a size of the submap;

allocating the submap and a control header including subframe configuration information and submap information to the one or more resource areas; and

transmitting the control header.

2. The method according to claim 1, wherein each of the one or more resource areas is configured by control allocation units comprising predetermined resource units.

3. The method according to claim 2, wherein the predetermined resource units are distributed across a total frequency area of the subframe in a predetermined order.

4. The method according to claim 2, wherein the step of allocating further comprises:

rearranging one or more control allocation units included in the one or more resource areas in a predetermined order in a predetermined symbol; and

permuting a predetermined control allocation unit among the one or more control allocation units.

5. The method according to claim 4, wherein the step of rearranging comprises:

changing an allocation sequence of the one or more control allocation units using a predetermined rotation value.

6. The method according to claim 2, wherein the predetermined resource units included in the control allocation unit are located from one another by the number of the resource units in a total frequency area of the subframe.

7. The method according to claim 2, further comprising calculating a total amount of required resources for the submap in terms of the number of symbols each configured predetermined subchannels,

wherein if the total amount of required resources for the submap is less than one symbol, the step of allocating is performed by allocating the control header and a downlink submap to a first control allocation unit in time division multiplexing.

8. The method according to claim 7, wherein the step of allocating further comprises:

allocating the control header and the downlink submap to the first control allocation unit and allocating an uplink submap to a remaining subchannel area of the first control allocation unit.

9. The method according to claim 8, wherein if all of the uplink submap is not allocated to the first control allocation unit, the uplink submap is allocated using a second control allocation unit additionally.

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

calculating a total amount of required resources for the submap in terms of the number of symbols each including predetermined subchannels, wherein if the total amount of required resources for the submap is larger than one symbol, the step of allocating comprises allocating the control header and the submap to a first symbol of the resource area and allocating a remaining part of the submap to a second symbol of the resource area.

11. The method according to claim 10, wherein the submap includes a downlink submap and an uplink submap, and the uplink submap is allocated to a remaining area after the downlink submap is allocated.

12. The method according to claim 2, wherein the submap information includes information about a number of the control allocation units to which the submap is allocated.

13. The method according to claim 1, wherein the submap includes at least one of downlink control channel information and uplink control channel information.

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

transmitting the submap to a mobile station according to the submap information.