Method of transmitting and receiving scheduling information in a wireless communication system

• US 8,155,069 B2
• Filed: 01/09/2008
• Issued: 04/10/2012
• Est. Priority Date: 01/09/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): Sinkantarakorn, Pao
• Assistant Examiner(s): Zaidi, Iqbal
• Application Number:
  US12/448,778
• Publication Number:
  US 20100027488A1
• Time in Patent Office: 1,553 Days
• Field of Search: 370315-327, 370329-338, 370436-440
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 5/0042 intra-user or intra-terminal allocation
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of transmitting scheduling information in a network of a wireless communication system which uses multiple carriers includes allocating at least one sub-region to a specific user equipment among an entire control information transmission region used in one cell, the entire control information transmission region comprising at least two sub-regions, and transmitting scheduling information for data to be transmitted to the user equipment, through at least one sub-region allocated to the specific user equipment.

Claims

1. A method of performing a procedure for transmitting PDCCH signal from a network of a wireless communication system, the method comprising transmitting a subframe including a control information transmission region, wherein the control information transmission region comprises starting OFDM symbols and includes a plurality of sub-control regions;

identifying a partial set of the plurality of sub-control regions, which are allocated to user equipment (UE); and

transmitting the PDCCH signal for the UE via the partial set of entire the plurality of sub-control regions;

wherein the PDCCH signal includes scheduling information for the UE, and wherein each sub-control region constituting the control information transmission region is an independent control channel.

2. The method of claim 1, wherein at least two sub-control regions constitute one control channel.

3. The method of claim 1, wherein the scheduling information for data to be transmitted to the user equipment is transmitted periodically or non-periodically through the at least one sub-control region allocated to the specific user equipment.

4. The method of claim 1, wherein the sub-control regions allocated to different user equipments are set to have different data formats.

5. The method of claim 4, further comprising transmitting interpretation information of a data format for the sub-control regions, which are allocated to the user equipment, to the user equipment.

6. The method of claim 1, wherein the sub-control regions allocated to the user equipment at different transmission time intervals are set to have a single data format.

7. A method of performing a procedure for receiving PDCCH signal at a user equipment in a wireless communication system, the method comprising:

receiving a subframe including a control information transmission region, wherein the control information transmission region comprises starting OFDM symbols and includes a plurality of sub-control regions;

monitoring only a partial set of the plurality of sub-control regions for receiving the PDCCH signal;

identifying, in the monitored partial set of the plurality of sub-control regions at least one sub-control region allocated to the user equipment;

receiving scheduling information for the user equipment, through the allocated at least one sub-control region; and

if scheduling information allocated to the user equipment is detected in the allocated at least one sub-control region, performing an operation in accordance with the scheduling information,

wherein each sub-control region constituting the control information transmission region is an independent control channel.

8. The method of claim 7, wherein at least two sub-control regions constitute one control channel.

9. The method of claim 7, wherein the at least one sub-control region allocated to the user equipment for different sub-frames has a single format.

10. The method of claim 9, further comprising receiving interpretation information of a format for the at least one sub-control region from the network.

11. The method of claim 10, wherein the interpretation information is received in a procedure of configuring a call or radio bearer with the network.