# US 2020/0288446 A1 · Method for transmitting and receiving physical downlink shared channel in wireless communication system and device supporting the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2020/0288446 A1
- Document ID: US20200288446A1
- Status: Published application
- Kind: A1
- Application number: 16/814,610
- Filed: 2020-03-10
- Published: 2020-09-10
- Earliest claimed: 2018-07-09
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Hyunho LEE
- Web page: https://patentgrep.com/patent/US20200288446A1

## CPC

- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/1469: {using time-sharing}
- H04W 72/044: based on the type of the allocated resource
- H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)}
- H04L 1/1664: {the supervisory signal being transmitted together with payload signals; piggybacking}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1896: {ARQ related signaling}
- H04L 5/0073: {Allocation arrangements that take into account other cell interferences}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method of receiving, by a user equipment, a physical downlink shared channel (PDSCH) in a wireless communication system. The method includes receiving, from a base station (BS), a higher layer signal including first information for an uplink (UL)-downlink (DL) configuration; repeatedly receiving, from the BS, a first transport block (TB) via the PDSCH based on the first information for the UL-DL configuration; receiving, from the BS, a first control channel including second information for the UL-DL configuration; and discarding a second control channel based on: (i) the second control channel scheduling a PDSCH repetition of a second TB in a transmission time unit, (ii) the first information for the UL-DL configuration indicating the transmission time unit as an uplink, and (iii) the second information for the UL-DL configuration indicating the transmission time unit as a downlink.

## Claims

### Claim 1

A method of receiving, by a user equipment, a physical downlink shared channel (PDSCH) in a wireless communication system, the method comprising:
receiving, from a base station (BS), configuration information related to an uplink (UL)-downlink (DL) configuration;
repeatedly receiving, from the BS, a first PDSCH based on the configuration information;
receiving, from the BS, a first physical downlink control channel (PDCCH) related to an UL-DL reconfiguration; and
discarding a second PDCCH scheduling a repetition of a second PDSCH in a transmission time unit based on (i) the configuration information indicating the transmission time unit as an uplink, and (ii) the first PDCCH indicating the transmission time unit as a downlink.

### Claim 2 (depends on 1)

The method of claim 1, wherein the transmission time unit is a subframe or a special subframe.

### Claim 3 (depends on 1)

The method of claim 1, wherein the configuration information further comprises information for configuration of an enhanced interference mitigation and traffic adaptation (eIMTA) operation.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first PDCCH is a PDCCH with a cyclic redundancy check (CRC) scrambled by an eIMTA-radio network temporary identifier (RNTI).

### Claim 5

A user equipment (UE) configured to receive a physical downlink shared channel (PDSCH) in a wireless communication system, the UE comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving, from a base station (BS), configuration information related to an uplink (UL)-downlink (DL) configuration;
repeatedly receiving, from the BS, a first PDSCH based on the configuration information;
receiving, from the BS, a first physical downlink control channel (PDCCH) related to an UL-DL reconfiguration; and
discarding a second PDCCH scheduling a repetition of a second PDSCH in a transmission time unit based on (i) the configuration information indicating the transmission time unit as an uplink, and (ii) the first PDCCH indicating the transmission time unit as a downlink.

### Claim 6 (depends on 5)

The UE of claim 5, wherein the transmission time unit is a subframe or a special subframe.

### Claim 7 (depends on 5)

The UE of claim 5, wherein the configuration information further comprises information for configuration of an enhanced interference mitigation and traffic adaptation (eIMTA) operation.

### Claim 8 (depends on 5)

The UE of claim 5, wherein the first PDCCH is a PDCCH with a cyclic redundancy check (CRC) scrambled by an eIMTA-radio network temporary identifier (RNTI).

### Claim 9

Abase station (BS) configured to transmit a physical downlink shared channel (PDSCH) in a wireless communication system, the BS comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
transmitting, to a user equipment (UE), a configuration information related to an uplink (UL)-downlink (DL) configuration;
repeatedly transmitting, to the UE, a first PDSCH based on the configuration information; and
transmitting, to the UE, a first physical downlink control channel (PDCCH) related to an UL-DL reconfiguration,
wherein a second PDCCH scheduling a repetition of a second PDSCH is discarded in a transmission time unit based on (i) the configuration information indicating the transmission time unit as an uplink, and (ii) the first PDCCH indicating the transmission time unit as a downlink.

### Claim 10 (depends on 9)

The BS of claim 9, wherein the transmission time unit is a subframe or a special subframe.

### Claim 11 (depends on 9)

The BS of claim 9, wherein the configuration information further comprises information for configuration of an enhanced interference mitigation and traffic adaptation (eIMTA) operation.

### Claim 12 (depends on 9)

The BS of claim 9, wherein the first PDCCH is a PDCCH with a cyclic redundancy check (CRC) scrambled by an eIMTA-radio network temporary identifier (RNTI).
