METHOD AND APPARATUS FOR TRANSRECEIVING WIRELESS SIGNAL IN WIRELESS COMMUNICATION SYSTEM

• US 20190081744A1
• Filed: 03/03/2017
• Published: 03/14/2019
• Est. Priority Date: 03/03/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: YANG, Suckchel, KIM, Kijun, KIM, Byounghoon, KIM, Eunsun, PARK, Hanjun, BYUN, Ilmu, LEE, Hyunho
• Granted Patent: US 10,673,579 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2607 Cyclic extensions
• 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 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0082 at predetermined intervals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention relates to a wireless communication system, and particularly, to a method and an apparatus for same, the method comprising the steps of: receiving DL data from a DL data zone of time unit #n; transmitting ACK/NACK information for the DL data from a UL control zone of time unit #n+1; and receiving DL scheduling information indicating retransmission of the DL data from a DL control zone of time unit #n+2, wherein each of the time units comprises, in time order, the DL control zone, a GP, the UL control zone, and the DL data zone.

Claims

1. A method of transmitting an uplink signal, which is transmitted by a user equipment in a wireless communication system, comprising the steps of:

receiving a DL (downlink) data in a DL data duration of a time unit #n;

transmitting ACK/NACK (acknowledgement/negative acknowledgement) information in a UL (uplink) control duration of a time unit #n+1 in response to the DL data; and

receiving DL scheduling information indicating retransmission of the DL data in a DL control duration of a time unit #n+2,

wherein each of the time units contains a DL control duration, a GP (guard period), a UL control duration, and a DL data duration in time order.

2. The method of claim 1, further comprising the step of receiving DL scheduling information indicating an initial transmission of the DL data in the DL control duration of the time unit #n.

3. The method of claim 1, wherein each of the time units contains a plurality of OFDMA (orthogonal frequency division multiple access) symbols.

4. The method of claim 1, wherein each of the time units corresponds to a subframe or a half-frame.

5. The method of claim 1, wherein each of the time units corresponds to a TTI (transmission time interval) or a half-TTI.

6. The method of claim 1, wherein the DL data is received via a PDSCH (physical downlink shared channel) and wherein the ACK/NACK information is transmitted via a PUCCH (physical uplink control channel).

7. The method of claim 1, wherein the wireless communication system comprises 3GPP LTE (3^rd generation project partnership long term evolution)-based wireless communication system.

8. A user equipment in a wireless communication system, comprising:

an RF (radio frequency) module; and

a processor, the processor configured to receive a DL (downlink) data in a DL data duration of a time unit #n, the processor configured to transmit ACK/NACK (acknowledgement/negative acknowledgement) information in a UL (uplink) control duration of a time unit #n+1 in response to the DL data, the processor configured to receive DL scheduling information indicating retransmission of the DL data in a DL control duration of a time unit #n+2,

wherein each of the time units contains a DL control duration, a GP (guard period), a UL control duration, and a DL data duration in time order.

9. The user equipment of claim 8, wherein the processor is configured to receive DL scheduling information indicating an initial transmission of the DL data in the DL control duration of the time unit #n.

10. The user equipment of claim 8, wherein each of the time units contains a plurality of OFDMA (orthogonal frequency division multiple access) symbols.

11. The user equipment of claim 8, wherein each of the time units corresponds to a subframe or a half-frame.

12. The user equipment of claim 8, wherein each of the time units corresponds to a TTI (transmission time interval) or a half-TTI.

13. The user equipment of claim 8, wherein the DL data is received via a PDSCH (physical downlink shared channel) and wherein the ACK/NACK information is transmitted via a PUCCH (physical uplink control channel).

14. The user equipment of claim 8, wherein the wireless communication system comprises 3GPP LTE (3^rd generation project partnership long term evolution)-based wireless communication system.