# US 12,225,461 B2 · Transmissions of physical downlink control channels in a communication system

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

- Number: US 12,225,461 B2
- Document ID: US12225461B2
- Status: Granted
- Kind: B2
- Application number: 18/449,550
- Filed: 2023-08-14
- Published: 2024-02-15
- Granted: 2025-02-11
- Earliest claimed: 2016-06-21
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Aris Papasakellariou
- Web page: https://patentgrep.com/patent/US12225461B2

## CPC

- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- 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 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0096: {Indication of changes in allocation}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0035: {Resource allocation in a cooperative multipoint environment}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- Y02D 30/70: in wireless communication networks
- 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)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A method of a user equipment (UE) for controlling a signal comprises receiving configuration information for enabling or disabling a signal transmission, receiving a first physical downlink control channel (PDCCH) conveying a first downlink control information (DCI) format, decoding the first DCI format, determining whether the first DCI format is correctly decoded; and transmitting the signal or suspending a transmission of the signal according to the configuration information when the first DCI format is not correctly decoded.

## Claims

### Claim 1

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a physical downlink control channel (PDCCH), wherein the PDCCH provides a downlink control information (DCI) format;
determining, based on first information in the DCI format, a first number of slots on a first cell; and
skipping receptions of first physical downlink shared channels (PDSCHs) or of first channel state information reference signals (CSI-RSs) over the first number of slots on the first cell.

### Claim 2 (depends on 1)

The method of claim 1, wherein the receptions of the first PDSCHs or receptions of the first CSI-RSs occur periodically.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
determining, based on second information in the DCI format, a second number of slots on the first cell; and
skipping transmissions of physical uplink shared channels (PUSCHs) or of physical uplink control channels (PUCCHs) over the second number of slots on the first cell.

### Claim 4 (depends on 3)

The method of claim 3, wherein the transmissions of the PUSCHs or of the PUCCHs occur periodically.

### Claim 5 (depends on 1)

The method of claim 1, wherein reception of the PDCCH is according to a common search space.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving information indicating a periodicity for the reception of the PDCCH.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
determining, based on second information in the DCI format, a second number of slots on a second cell; and
skipping receptions of second PDSCHs or of second CSI-RSs over the second number of slots on the second cell.

### Claim 8

A user equipment (UE), comprising:
a transceiver configured to receive a physical downlink control channel (PDCCH), wherein the PDCCH provides a downlink control information (DCI) format; and
a processor, operably coupled to the transceiver, the processor configured to determine, based on first information in the DCI format, a first number of slots on a first cell,
wherein the transceiver is further configured to skip receptions of first physical downlink shared channels (PDSCHs) or of first channel state information reference signals (CSI-RS) over the first number of slots on the first cell.

### Claim 9 (depends on 8)

The UE of claim 8, wherein the receptions of the first PDSCHs or of the first CSI-RS occur periodically.

### Claim 10 (depends on 8)

The UE of claim 8, wherein:
the processor is further configured to determine, based on second information in the DCI format, a second number of slots on the first cell; and
the transceiver is further configured to skip transmissions of physical uplink shared channels (PUSCHs) or of physical uplink control channels (PUCCHs) over the second number of slots on the first cell.

### Claim 11 (depends on 10)

The UE of claim 10, wherein the transmissions of the PUSCHs or of the PUCCHs occur periodically.

### Claim 12 (depends on 8)

The UE of claim 8, wherein the reception of the PDCCH is according to a common search space.

### Claim 13 (depends on 8)

The UE of claim 8, wherein:
the transceiver is further configured to receive information indicating a periodicity for the reception of the PDCCH.

### Claim 14 (depends on 8)

The UE of claim 8, wherein:
the processor is further configured to determine, based on second information in the DCI format, a second number of slots on a second cell; and
the transceiver is further configured to skip receptions of second PDSCHs or of second CSI-RS over the second number of slots on the second cell.

### Claim 15

A base station, comprising:
a processor configured to determine a first number of slots; and
a transceiver, operably coupled to the processor, the transceiver configured to transmit a physical downlink control channel (PDCCH), wherein:
the PDCCH provides a downlink control information (DCI) format,
the DCI format includes first information for the first number of slots, and
the transceiver is further configured to skip transmissions of physical downlink shared channels (PDSCHs) or of channel state information reference signals (CSI-RS) over the first number of slots.

### Claim 16 (depends on 15)

The base station of claim 15, wherein the transmissions of the PDSCHs or of the CSI-RS occur periodically.

### Claim 17 (depends on 15)

The base station of claim 15, wherein:
the processor is further configured to determine a second number of slots; and
the transceiver is further configured to skip receptions of physical uplink shared channels (PUSCHs) or of physical uplink control channels (PUCCHs) over a second number of slots, wherein the DCI format includes second information for the second number of slots.

### Claim 18 (depends on 17)

The base station of claim 17, wherein the receptions of the PUSCHs or of the PUCCHs occur periodically.

### Claim 19 (depends on 15)

The base station of claim 15, wherein the transmission of the PDCCH is according to a common search space.

### Claim 20 (depends on 15)

The base station of claim 15, wherein the transceiver is further configured to transmit information indicating a periodicity for the transmission of the PDCCH.