# US 11,310,018 B2 · Method for transmitting uplink signal of terminal in wireless communication system and terminal using same method

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- Number: US 11,310,018 B2
- Document ID: US11310018B2
- Status: Granted
- Kind: B2
- Application number: 16/635,114
- Filed: 2018-08-01
- Published: 2020-08-06
- Granted: 2022-04-19
- Earliest claimed: 2017-08-02
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Daesung Hwang; Duckhyun Bae; Yunjung Yi
- Web page: https://patentgrep.com/patent/US11310018B2

## CPC

- H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands}
- H04W 72/04: Wireless resource allocation
- H04L 1/0061: {Error detection codes}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 25/0226: {sounding signals per se}
- 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
- H04W 76/11: Allocation or use of connection identifiers
- H04W 76/27: Transitions between radio resource control [RRC] states
- 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)

## Abstract

Provided are a method for transmitting an uplink signal of a terminal in a wireless communication system and a terminal using the same method. The method comprises: receiving activation information that activates or deactivates a specific resource set from among a plurality of resource sets; and performing a grant-less uplink transmission using the resources belonging to the specific resource set when the activation information activates the specific resource set.

## Claims

### Claim 1

A method for transmitting an uplink (UL) signal by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, downlink control information (DCI) including (i) activation information for activating or deactivating a specific resource set from among a plurality of resource sets and (ii) a request field for transmitting a sounding reference signal (SRS);
transmitting the SRS to the base station using a first resource included in the specific resource set in response to the DCI; and
performing grant-free UL transmission using a resource belonging to the specific resource set,
wherein the DCI includes a cyclic redundancy check (CRC) masking sequence corresponding to the specific resource set.

### Claim 2 (depends on 1)

The method of claim 1, wherein the terminal performs the grant-free UL transmission during a time duration, and
wherein the time duration is pre-determined.

### Claim 3 (depends on 1)

The method of claim 1, wherein the activation information comprises an identity (ID) of the specific resource set.

### Claim 4 (depends on 1)

The method of claim 1, wherein the UL transmission is transmission of a physical uplink shared channel (PUSCH).

### Claim 5 (depends on 4)

The method of claim 4, wherein the grant-free UL transmission is transmitting, by the terminal, the PUSCH using any of resources belonging to the specific resource set without a UL grant for scheduling the PUSCH.

### Claim 6 (depends on 1)

The method of claim 1, wherein an acknowledgement to the activation information is transmitted as a response to the DCI.

### Claim 7 (depends on 1)

The method of claim 1, wherein the plurality of resource sets is configured by a radio resource control (RRC) signal.

### Claim 8 (depends on 7)

The method of claim 7, wherein at least one resource set from among the plurality of resource sets is used for a fallback operation in an RRC reconfiguration period.

### Claim 9 (depends on 8)

The method of claim 8, wherein a physical layer signal indicating use of the at least one resource set is further received.

### Claim 10 (depends on 1)

The method of claim 1, wherein the activation information uses a scrambling or cyclic redundancy check (CRC) masking sequence specific to the specific resource set.

### Claim 11 (depends on 1)

The method of claim 1, wherein the plurality of resource sets corresponds to different CRC masking sequences.

### Claim 12

A terminal, comprising:
a transceiver configured to transmit and receive a radio signal; and
a processor configured to operate with being connected to the transceiver,
wherein the processor is further configured to:
receive, from a base station, downlink control information (DCI) including (i) activation information for activating or deactivating a specific resource set from among a plurality of resource sets and (ii) a request field for transmitting a sounding reference signal (SRS);
transmit the SRS to the base station using a first resource included in the specific resource set in response to the DCI; and
perform grant-free uplink (UL) transmission using a resource belonging to the specific resource set,
wherein the DCI includes a cyclic redundancy check (CRC) masking sequence corresponding to the specific resource set.