# US 2021/0345293 A1 · Method and device for transmitting or receiving signal in wireless communication system

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

- Number: US 2021/0345293 A1
- Document ID: US20210345293A1
- Status: Published application
- Kind: A1
- Application number: 17/266,810
- Filed: 2019-08-08
- Published: 2021-11-04
- Earliest claimed: 2018-08-09
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Changhwan Park; Joonkui Ahn; Seonwook Kim; Sukhyon Yoon; Seunggye Hwang
- Web page: https://patentgrep.com/patent/US20210345293A1

## CPC

- H04L 5/0092: {Indication of how the channel is divided}
- H04W 68/02: Arrangements for increasing efficiency of notification or paging channel
- H04B 7/08: at the receiving station
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission}
- H04L 27/2601: {Multicarrier modulation systems}
- H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
- H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0012: {Hopping in multicarrier systems}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0069: {Allocation based on distance or geographical location}
- H04W 74/0833: Random access procedures, e.g. with 4-step access
- H04W 74/0838: using contention-free random access [CFRA]
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

The present disclosure relates to a method and device for receiving a paging signal in a radio resource control (RRC) connected mode. More specifically, the present disclosure relates to a method and a device therefor, the method comprising the steps of: receiving gap configuration information indicating a gap section in a search space; when a first search space related to a data signal in a specific time interval and a second search space related to the paging signal are configured in different narrowbands (NBs), monitoring the second search space in the specific time interval, wherein the first search space is not monitored in the specific time interval on the basis of the gap section; and when the first search space and the second search space are configured in one NB in the specific time interval, monitoring the first search space and the second search space in the specific time interval without applying the gap section.

## Claims

### Claim 1

A method for receiving a paging signal by a user equipment (UE) in a radio resource control (RRC) connected mode comprising:
receiving gap configuration information indicating a gap period of a search space;
when a first search space associated with a data signal and a second search space associated with the paging signal are configured in different narrowbands (NBs) in a specific time period, monitoring the second search space in the specific time period without monitoring the first search space in the specific time period based on the gap period; and
when the first search space and the second search space are configured in one NB in the specific time period, monitoring the first search space and the second search space in the specific time period without consideration of the gap period.

### Claim 2 (depends on 1)

The method according to claim 1, wherein:
when the first search space and the second search space are configured in different NBs in the specific time period, the first search space is postponed to a time period in which the second search space is not configured based on the gap period.

### Claim 3 (depends on 1)

The method according to claim 1, wherein:
when a time period of the second search space overlaps with a time period of physical downlink control channel (PDSCH) reception, the second search space is not monitored in the overlapped time period.

### Claim 4 (depends on 1)

The method according to claim 1, wherein:
when the UE operates in a half-duplex frequency division duplex (HD-FDD) and a time period of the second search space overlaps with a time period of physical uplink shared channel (PUSCH) transmission, the second search space is not monitored in the overlapped time period.

### Claim 5 (depends on 1)

The method according to claim 1, wherein:
when the UE operates in a half-duplex frequency division duplex (HD-FDD) and a time period of the second search space overlaps with a time period of physical random access channel (PRACH) transmission, the second search space is not monitored in the overlapped time period.

### Claim 6 (depends on 1)

The method according to claim 1, wherein:
when the UE operates in a half-duplex frequency division duplex (HD-FDD) and a time period of the second search space overlaps with a time period of physical uplink control channel (PUCCH) transmission, the second search space is not monitored in the overlapped time period.

### Claim 7 (depends on 1)

The method according to claim 1, wherein:
the first search space is a UE-specific search space (USS), and the second search space is a common search space (CSS).

### Claim 8 (depends on 1)

The method according to claim 1, wherein:
the paging signal includes earthquake and tsunami warning system (ETWS) information or commercial mobile alert system (CMAS) information.

### Claim 9 (depends on 1)

The method according to claim 1, wherein:
the UE is configured to operate in a coverage extension (CE) mode.

### Claim 10 (depends on 1)

The method according to claim 1, wherein:
the UE includes at least two reception antennas, and supports a maximum of 20 MHz bandwidth within one component carrier.

### Claim 11

A user equipment (UE) configured to receive a paging signal in a wireless communication system comprising:
a radio frequency (RF) transceiver; and
a processor operatively connected to the RF transceiver,
wherein the processor controls the RF transceiver to implement operations including:
receiving gap configuration information indicating a gap period of a search space by controlling the RF transceiver;
when a first search space associated with a data signal and a second search space associated with the paging signal are configured in different narrowbands (NBs) in a specific time period, monitoring the second search space in the specific time period without monitoring the first search space in the specific time period based on the gap period; and
when the first search space and the second search space are configured in one NB in the specific time period, monitoring the first search space and the second search space in the specific time period without consideration of the gap period.

### Claim 12

An apparatus for a user equipment (UE) in a wireless communication system comprising:
a memory including executable code; and
a processor operatively connected to the memory,
wherein the processor is configured to perform specific operations by executing the executable code,
the specific operations including:
receiving gap configuration information indicating a gap period of a search space;
when a first search space associated with a data signal and a second search space associated with the paging signal are configured in different narrowbands (NBs) in a specific time period, monitoring the second search space in the specific time period without monitoring the first search space in the specific time period based on the gap period; and
when the first search space and the second search space are configured in one NB in the specific time period, monitoring the first search space and the second search space in the specific time period without consideration of the gap period.
