# US 11,310,639 B2 · Method and device for V2X terminal to receive PSCCH scheduling information and transmit PSCCH in wireless communication system

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- Number: US 11,310,639 B2
- Document ID: US11310639B2
- Status: Granted
- Kind: B2
- Application number: 16/638,088
- Filed: 2018-08-13
- Published: 2020-07-09
- Granted: 2022-04-19
- Earliest claimed: 2017-08-11
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Heejin Kim; Seungmin Lee; Hyukjin Chae; Hanbyul Seo
- Web page: https://patentgrep.com/patent/US11310639B2

## CPC

- H04L 5/001: {the frequencies being arranged in component carriers}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- 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 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 27/2601: {Multicarrier modulation systems}
- 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
- H04W 72/53: based on regulatory allocation policies
- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0057: {Physical resource allocation for CQI}
- H04W 76/14: Direct-mode setup
- H04W 92/18: between terminal devices
- 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

An embodiment of the present invention is a PSCCH transmission method. The method for a vehicle to everything (V2X) terminal to receive physical sidelink control channel (PSCCH) scheduling information and transmit a physical sidelink control channel (PSCCH) in a wireless communication system includes: a step for receiving Downlink control information related to sidelink semi persistent scheduling (SL SPS); a step for transmitting a first PSCCH in response to an instruction for activating an SL SPS configuration of the downlink control information; and a step for transmitting a second PSCCH among reserved resources after transmitting the PSCCH, wherein, when the downlink control information is related to the SL SPS for two or more component carriers (CCs), time resource units at which the first PSCCH is transmitted in each CC do not overlap with each other. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.

## Claims

### Claim 1

A method of transmitting, by a vehicle-to-everything (V2X) user equipment (UE), a physical sidelink control channel (PSCCH) upon receipt of PSCCH scheduling information in a wireless communication system, the method comprising:
receiving downlink control information related to sidelink semi-persistent scheduling (SL SPS);
transmitting a first PSCCH based on an instruction for activating an SL SPS configuration in the downlink control information; and
transmitting a second PSCCH on a reserved resource after transmitting the first PSCCH,
wherein based on that the downlink control information is related to SL SPS for two or more component carriers (CCs), time resource units of the individual CCs do not overlap with each other, and
wherein the first PSCCH is transmitted in the time resource unit.

### Claim 2 (depends on 1)

The method of claim 1, wherein based on that the downlink control information is related to the SL SPS for the two or more CCs, frequency resources indicated by information about frequency resource allocation are allocated by an allocation unit N times greater than an allocation unit given based on that the downlink control information is related to SL SPS for one CC.

### Claim 3 (depends on 1)

The method of claim 1, wherein based on that the downlink control information is related to the SL SPS for the two or more CCs, information about frequency resource allocation provides information about frequency resource allocation on the two or more CCs.

### Claim 4 (depends on 1)

The method of claim 1, wherein based on that the downlink control information is related to the SL SPS for the two or more CCs, the downlink control information includes information on whether messages transmitted on the two or more CCs are identical.

### Claim 5 (depends on 4)

The method of claim 4, wherein based on the messages transmitted on the two or more CCs are not identical, the messages transmitted on the two or more CCs are a part of one message.

### Claim 6 (depends on 1)

The method of claim 1, wherein information about frequency resource allocation is included in the downlink control information.

### Claim 7 (depends on 1)

The method of claim 1, wherein in each CC, the time resource unit for transmitting the first PSCCH is separated by an offset.

### Claim 8 (depends on 1)

The method of claim 1, wherein an offset is included in the downlink control information.

### Claim 9 (depends on 1)

The method of claim 1, wherein an offset is preconfigured for the V2X UE.

### Claim 10 (depends on 1)

The method of claim 1, wherein based on that the downlink control information is related to the SL SPS for the two or more CCs, SL SPS configuration indices included in the downlink control information provide information on SPS processes for the two or more CCs.

### Claim 11 (depends on 1)

The method of claim 1, wherein a carrier indicator field included in the downlink control information provides information on combinations of the two or more CCs.

### Claim 12 (depends on 1)

The method of claim 1, wherein the downlink control information related to the SPS is downlink control information (DCI) format 5A.

### Claim 13 (depends on 1)

The method of claim 1, wherein downlink control information (DCI) format 5A includes SPS activation/release information.

### Claim 14

A vehicle-to-everything (V2X) user equipment (UE) device for receiving physical sidelink control channel (PSCCH) scheduling information and transmitting a PSCCH, the V2X UE device comprising:
a transmitter;
a receiver; and
a processor,
wherein the processor is configured to receive downlink control information related to sidelink semi-persistent scheduling (SL SPS), transmit a first PSCCH based on an instruction for activating an SL SPS configuration in the downlink control information, and transmit a second PSCCH on a reserved resource after transmitting the first PSCCH,
wherein based on that the downlink control information is related to SL SPS for two or more component carriers (CCs), time resource units of the individual CCs do not overlap with each other, and
wherein the first PSCCH is transmitted in the time resource unit.

### Claim 15 (depends on 14)

The UE of claim 14, wherein the UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.
