Method and apparatus for transreceiving wireless signal in wireless communication system based on downlink scheduling information including different time unit types

• US 10,673,579 B2
• Filed: 03/03/2017
• Issued: 06/02/2020
• 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
• Primary Examiner(s): Huynh, Dung B
• Application Number:
  US16/080,594
• Publication Number:
  US 20190081744A1
• Time in Patent Office: 1,187 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, the method comprising:

receiving, from a base station (BS), first downlink (DL) scheduling information on an initial transmission of a DL data via a DL control duration of a time unit # n, the time unit # n is configured based on one of a first time unit type and a second time unit type,

wherein the first time unit type is used for configuring a time unit to contain the DL control duration, a guard period (GP), an uplink (UL) control duration, and a first DL data duration in time order, and

wherein the second time unit type is used for configuring a time unit to contain the DL control duration, a second DL data duration, the GP, the UL control duration, and a third DL data duration in time order;

receiving, from the BS, the DL data via one of the first DL data duration and the second DL data duration of the time unit # n, based on a time unit type configured for the time unit # n,

wherein the first time unit type is used when a specific time interval larger than a time interval between reception of the DL data via the first DL data duration and transmission of acknowledgement/negative acknowledgement (ACK/NACK) information is not required, and

wherein the second time unit type is used when the specific time interval larger than the time interval between reception of the DL data via the first DL data duration and transmission of the ACK/NACK information is required;

transmitting, to the BS, the ACK/NACK information via an UL control duration of a time unit # n+1 in response to the DL data; and

receiving, from the BS, second DL scheduling information on retransmission of the DL data in a DL control duration of a time unit # n+2,

wherein each of the time unit # n+1 and the time unit # n+2 is configured based on the first time unit type.

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

3. The method of claim 1, wherein each time unit is a subframe or a half-frame.

4. The method of claim 1, wherein each time unit is a TTI (transmission time interval) or a half-TTI.

5. The method of claim 1, wherein the DL data is received via a physical downlink shared channel (PDSCH), and

wherein the ACK/NACK information is transmitted via a physical uplink control channel (PUCCH).

6. A user equipment (UE) in a wireless communication system, the UE comprising:

a radio frequency (RF) module; and

at least one processor,

wherein the at least one processor is configured to;

control the RF module to receive, from a base station (BS), first downlink (DL) scheduling information on an initial transmission of a DL data via a DL control duration of a time unit # n, the time unit # n is configured based on one of a first time unit type and a second time unit type,

wherein the first time unit type is used for configuring a time unit to contain the DL control duration, a guard period (GP), an uplink (UL) control duration, and a first DL data duration in time order, and

wherein the second time unit type is used for configuring a time unit to contain the DL control duration, a second DL data duration, the GP, the UL control duration, and a third DL data duration in time order,

control the RF module to receive, from the BS, the DL data via one of the first DL data duration and the second DL data duration of the time unit # n, based on a time unit type configured for the time unit # n,

wherein the first time unit type is used when a specific time interval larger than a time interval between reception of the DL data via the first DL data duration and transmission of acknowledgement/negative acknowledgement (ACK/NACK) information is not required, and

wherein the second time unit type is used when the specific time interval larger than the time interval between reception of the DL data via the first DL data duration and transmission of the ACK/NACK information is required,

control the RF module to transmit, to the BS, the ACK/NACK information via an UL control duration of a time unit # n+1 in response to the DL data, and

control the RF module to receive, from the BS, second DL scheduling information on retransmission of the DL data in a DL control duration of a time unit # n+2,

wherein each of the time unit # n+1 and the time unit # n+2 is configured based on the first time unit type.

7. The UE of claim 6, wherein each time unit contains a plurality of orthogonal frequency division multiple access (OFDMA) symbols.

8. The UE of claim 6, wherein each time unit is a subframe or a half-frame.

9. The UE of claim 6, wherein each time unit is a TTI (transmission time interval) or a half-TTI.

10. The UE of claim 6, wherein the DL data is received via a physical downlink shared channel (PDSCH), and

wherein the ACK/NACK information is transmitted via a physical uplink control channel (PUCCH).