# US 2019/0357285 A1 · Method and apparatus for transmitting information for d2d operation in wireless communication system

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- Number: US 2019/0357285 A1
- Document ID: US20190357285A1
- Status: Published application
- Kind: A1
- Application number: 16/528,205
- Filed: 2019-07-31
- Published: 2019-11-21
- Earliest claimed: 2014-02-02
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Sunghoon JUNG; Youngdae LEE
- Web page: https://patentgrep.com/patent/US20190357285A1

## CPC

- H04W 76/14: Direct-mode setup
- H04W 8/005: {Discovery of network devices, e.g. terminals}
- H04W 76/10: Connection setup
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method and apparatus for transmitting information for device-to-device (D2D) operation in a wireless communication system is provided. A user equipment (UE) establishes a radio resource control (RRC) connection with a network. If the UE has interest to perform D2D operation, the UE transmits D2D information to the network. The D2D information may indicate various pieces of information.

## Claims

### Claim 1

A method for operating a base station (BS) in a wireless communication system, the method comprising:
receiving a message including information which informs that a user equipment (UE) wants to perform a sidelink transmission from the UE; and
transmitting information on a gap related to the sidelink transmission to the UE, in response to the message.

### Claim 2 (depends on 1)

The method of claim 1, wherein the information on the gap includes a periodicity of the gap.

### Claim 3 (depends on 1)

The method of claim 1, wherein the information on the gap includes a start timing of the gap.

### Claim 4 (depends on 1)

The method of claim 1, wherein the message includes information which informs at least one public land mobile network (PLMN) on which the UE wants to perform the sidelink transmission.

### Claim 5 (depends on 1)

The method of claim 1, wherein the message includes information which informs a preference of the UE between the sidelink transmission and a unicast operation.

### Claim 6 (depends on 1)

The method of claim 1, wherein the message includes information which informs a required range of the sidelink transmission.

### Claim 7 (depends on 6)

The method of claim 6, wherein the required range of the sidelink transmission is informed by at least one of a preferred maximum transmission power for the sidelink transmission, a preferred range class for the sidelink transmission, or a preferred distance range for the sidelink transmission.

### Claim 8 (depends on 1)

The method of claim 1, wherein the message includes information which informs a level of acceptable latency of the sidelink transmission.

### Claim 9

Abase station (BS) in a wireless communication system, the UE comprising:
a memory;
a radio frequency (RF) unit; and
a processor, operably coupled to the memory and the RF unit, that:
controls the RF unit to receive a message including information which informs that a user equipment (UE) wants to perform a sidelink transmission from the UE; and
controls the RF unit to transmit information on a gap related to the sidelink transmission to the UE, in response to the message.

### Claim 10 (depends on 9)

The UE of claim 9, wherein the information on the gap includes a periodicity of the gap.

### Claim 11 (depends on 9)

The UE of claim 9, wherein the information on the gap includes a start timing of the gap.

### Claim 12 (depends on 9)

The UE of claim 9, wherein the message includes information which informs at least one public land mobile network (PLMN) on which the UE wants to perform the sidelink transmission.

### Claim 13 (depends on 9)

The UE of claim 9, wherein the message includes information which informs a preference of the UE between the sidelink transmission and a unicast operation.

### Claim 14 (depends on 9)

The UE of claim 9, wherein the message includes information which informs a required range of the sidelink transmission.

### Claim 15 (depends on 14)

The UE of claim 14, wherein the required range of the sidelink transmission is informed by at least one of a preferred maximum transmission power for the D2D discovery signal, a preferred range class for the sidelink transmission, and/or a preferred distance range for the sidelink transmission.

### Claim 16 (depends on 9)

The UE of claim 9, wherein the message includes information which informs a level of acceptable latency of the sidelink transmission.