METHOD AND APPARATUS FOR TRANSCEIVING SCHEDULING SIGNALS IN A MULTI-CARRIER WIRELESS COMMUNICATION SYSTEM

• US 20120182950A1
• Filed: 09/17/2010
• Published: 07/19/2012
• Est. Priority Date: 09/18/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chung, Jae Hoon, Moon, Sung Ho, Lee, Moon Il, Ko, Hyun Soo
• Granted Patent: US 9,236,992 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

The present invention relates to a method for transceiving scheduling signals in a multi-carrier wireless communication system, comprising a step of transmitting, via a predetermined downlink component carrier, a PDSCH transmission scheduling signal on one or more downlink component carriers and/or a PUSCH transmission scheduling signal on one or more uplink component carriers; and a step of transceiving the PDSCH and/or the PUSCH in accordance with the scheduling signals. The scheduling signals can be defined to the same size in a PDCCH transmission region of said predetermined downlink component carrier in the event different MIMO transmission modes are applied to the PDSCH transmission or the PUSCH transmission, or in the event said one or more downlink component carriers or said one or more uplink component carriers have different bandwidths.

Claims

1. A method for transmitting scheduling signals in a multi-carrier wireless communication system, the method comprising:

transmitting, via a predetermined downlink component carrier (DL CC), at least one of a scheduling signal for Physical Downlink Shared Channel (PDSCH) transmission on one or more DL CCs or a scheduling signal for Physical Uplink Shared Channel (PUSCH) transmission on one or more uplink component carriers (UL CCs); and

performing at least one of the PDSCH transmitting or PUSCH receiving according to the scheduling signals,

wherein the scheduling signals are defined to the same size in a PDCCH transmission region of the predetermined DL CC when different Multiple Input Multiple Output (MIMO) transmission modes are applied to the PDSCH transmission or the PUSCH transmission, or when the one or more DL CCs or the one or more UL CCs have different bandwidths.

2. The method of claim 1, wherein MIMO transmission modes are respectively applied to the PDSCH transmission for each of the one or more DL CCs, and MIMO transmission modes are respectively applied to the PDSCH transmission for each of the one or more DL CCs.

3. The method of claim 1, wherein the scheduling signals are defined to the same size in the PDCCH transmission region of the predetermined DL CC by applying bit padding to scheduling information defined to different sizes for different MIMO transmission modes.

4. The method of claim 1, wherein the scheduling signals include a MIMO transmission mode indicator.

5. The method of claim 1, wherein the scheduling signals are defined to the same size by transmitting, in the PDCCH transmission region of the predetermined DL CC, common control information from among scheduling information having different sizes for different MIMO transmission modes, and the remaining control information other than the common control information is transmitted in a PDSCH transmission region of the predetermined DL CC.

6. The method of claim 5, wherein the common control information includes at least one of frequency resource allocation information, a MIMO transmission mode indicator, modulation and coding scheme (MCS) indexes for PDSCH and PUSCH, a new data indicator (NDI), a redundancy version (RV), a PDSCH transmission precoding matrix index (TPMI), MIMO transmission modes for the remaining control information, MCS indexes for the remaining control information, or information about physical resource sizes for the remaining control information.

7. The method of claim 1, wherein the scheduling signals are configured in a downlink control information (DCI) format.

8. The method of claim 1, wherein the predetermined DL CC is a primary carrier.

9. A method for receiving scheduling signals in a multi-carrier wireless communication system, the method comprising:

receiving, via a predetermined DL CC, at least one of a scheduling signal for Physical Downlink Shared Channel (PDSCH) transmission on one or more DL CCs or a scheduling signal for Physical Uplink Shared Channel (PUSCH) transmission on one or more uplink component carriers (UL CCs); and

performing at least one of the PDSCH receiving or PUSCH transmitting according to the scheduling signals,

wherein the scheduling signals are defined to the same size in a PDCCH transmission region of the predetermined DL CC when different Multiple Input Multiple Output (MIMO) transmission modes are applied to the PDSCH transmission or the PUSCH transmission, or when the one or more DL CCs or the one or more UL CCs have different bandwidths.

10. The method of claim 9, wherein MIMO transmission modes are respectively applied to the PDSCH transmission for each of the one or more DL CCs, and MIMO transmission modes are respectively applied to the PDSCH transmission for each of the one or more DL CCs.

11. The method of claim 9, wherein the scheduling signals are defined to the same size in the PDCCH transmission region of the predetermined DL CC by applying bit padding to scheduling information defined to different sizes for different MIMO transmission modes.

12. The method of claim 9, wherein the scheduling signals include a MIMO transmission mode indicator.

13. The method of claim 9, wherein the scheduling signals are defined to the same size by transmitting, in the PDCCH transmission region of the predetermined DL CC, common control information from among scheduling information having different sizes for different MIMO transmission modes, and the remaining control information other than the common control information is transmitted in a PDSCH transmission region of the predetermined DL CC.

14. The method of claim 13, wherein the common control information includes at least one of frequency resource allocation information, a MIMO transmission mode indicator, modulation and coding scheme (MCS) indexes for PDSCH and PUSCH, a new data indicator (NDI), a redundancy version (RV), a PDSCH transmission precoding matrix index (TPMI), MIMO transmission modes for the remaining control information, MCS indexes for the remaining control information, or information about physical resource sizes for the remaining control information.

15. The method of claim 9, wherein the scheduling signals are configured in a downlink control information (DCI) format.

16. The method of claim 9, wherein the predetermined DL CC is a primary carrier.

17. An eNB that transmits scheduling signals in a multi-carrier wireless communication system, the eNB comprising:

a reception module for receiving an uplink signal from a UE;

a transmission module for transmitting a downlink signals to the UE; and

a processor for controlling the reception module and the transmission module,

wherein the processor is configured to;

transmit, via a predetermined DL CC, at least one of a scheduling signal for Physical Downlink Shared Channel (PDSCH) transmission on one or more DL CCs or a scheduling signal for Physical Uplink Shared Channel (PUSCH) transmission on one or more uplink component carriers (UL CCs); and

perform at least one of the PDSCH transmitting or PUSCH receiving according to the scheduling signals,

wherein the scheduling signals are defined to the same size in a PDCCH transmission region of the predetermined DL CC when different Multiple Input Multiple Output (MIMO) transmission modes are applied to the PDSCH transmission or the PUSCH transmission, or when the one or more DL CCs or the one or more UL CCs have different bandwidths.

18. A UE that receives scheduling signals in a multi-carrier wireless communication system, the UE comprising:

a reception module for receiving a downlink signal from an eNB;

a transmission module for transmitting an uplink signals to the eNB; and

a processor for controlling the reception module and the transmission module,

wherein the processor is configured to;

receive, via a predetermined DL CC, at least one of a scheduling signal for Physical Downlink Shared Channel (PDSCH) transmission on one or more DL CCs or a scheduling signal for Physical Uplink Shared Channel (PUSCH) transmission on one or more uplink component carriers (UL CCs); and

performing at least one of the PDSCH receiving or PUSCH transmitting according to the scheduling signals,

wherein the scheduling signals are defined to the same size in a PDCCH transmission region of the predetermined DL CC when different Multiple Input Multiple Output (MIMO) transmission modes are applied to the PDSCH transmission or the PUSCH transmission, or when the one or more DL CCs or the one or more UL CCs have different bandwidths.