# US 12,120,765 B2 · Method and device for supporting vehicle communication in wireless communication system

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- Number: US 12,120,765 B2
- Document ID: US12120765B2
- Status: Granted
- Kind: B2
- Application number: 17/598,844
- Filed: 2020-03-27
- Published: 2022-06-23
- Granted: 2024-10-15
- Earliest claimed: 2019-03-27
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Sangyeob Jung; Anil Agiwal; Hyunjeong Kang
- Web page: https://patentgrep.com/patent/US12120765B2

## CPC

- H04W 76/19: Connection re-establishment
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 36/08: Reselecting an access point
- H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00)
- H04W 60/04: using triggered events
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/04: Wireless resource allocation
- H04W 76/14: Direct-mode setup
- H04W 76/20: Manipulation of established connections
- H04W 92/18: between terminal devices
- 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 and apparatus for supporting vehicle communication in a wireless communication system. The method includes: configuring vehicle-to-everything (V2X) sidelink communication to be performed at a predetermined frequency, in a radio resource control (RRC) inactive mode; receiving system information from a base station; identifying whether the system information includes a V2X sidelink transmission resource pool associated with the predetermined frequency; identifying whether a triggering condition of a radio access network (RAN)-based notification area (RNA) update (RNAU) is satisfied; determining whether to perform the RNAU, based on results of identifying whether the system information includes the V2X sidelink transmission resource pool and whether the triggering condition of the RNAU is satisfied; and resuming RRC connection with the base station, based on a result of the determining.

## Claims

### Claim 1

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
identifying that system information including sidelink common configuration is provided by a primary cell;
generating a message for indicating sidelink UE information; and
transmitting, to a base station, the message for indicating the sidelink UE information,
wherein generating the message comprises:
in case that a transmission resource for a sidelink communication is needed, including first information in the message for indicating the sidelink UE information, wherein the first information is associated with a first destination for which the transmission resource for the sidelink communication is requested; and
in case that a sidelink radio link failure (RLF) is declared, including second information in the message for indicating the sidelink UE information, wherein the second information is associated with a second destination for which a sidelink communication failure is reported,
wherein the first information includes a first destination identity configured by an upper layer for the first destination and a cast type of the first destination identity, and
wherein the second information includes a second destination identity configured by the upper layer for the second destination and a sidelink failure cause for the second destination.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first information further includes:
a field indicating a radio link control (RLC) mode and a quality of service (QOS) profile of a sidelink QoS flow of the RLC mode;
a field indicating a QoS profile of a sidelink QOS flow of the first destination;
a field indicating a frequency of the first destination; and
a field indicating a synchronization reference type used on the field indicating the frequency of the first destination.

### Claim 3 (depends on 1)

The method of claim 1, further comprising identifying that transmission of the sidelink communication is configured by the upper layer.

### Claim 4

A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
identify that system information including sidelink common configuration is provided by a primary cell;
generate a message for indicating sidelink UE information; and
transmit, to a base station via the transceiver, the message for indicating the sidelink UE information,
wherein the at least one processor is further configured to:
in case that a transmission resource for a sidelink communication is needed, include first information in the message for indicating the sidelink UE information, wherein the first information is associated with a first destination for which the transmission resource for the sidelink communication is requested; and
in case that a sidelink radio link failure (RLF) is declared, include second information in the message for indicating the sidelink UE information, wherein the second information is associated with a second destination for which a sidelink communication failure is reported,
wherein the first information includes a first destination identity configured by an upper layer for the first destination and a cast type of the first destination identity, and
wherein the second information includes a second destination identity configured by the upper layer for the second destination and a sidelink failure cause for the second destination.

### Claim 5 (depends on 4)

The UE of claim 4, wherein the first information further includes:
a field indicating a radio link control (RLC) mode and a quality of service (QOS) profile of a sidelink QoS flow of the RLC mode;
a field indicating a QoS profile of a sidelink QoS flow of the first destination;
a field indicating a frequency of the first destination; and
a field indicating a synchronization reference type used on the field indicating the frequency of the first destination.

### Claim 6 (depends on 4)

The UE of claim 4, wherein the at least one processor is further configured to identify that transmission of the sidelink communication is configured by the upper layer.

### Claim 7

A method performed by a base station in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), a message for indicating sidelink UE information,
wherein the message for indicating the sidelink UE information is associated with system information including sidelink common configuration provided by a primary cell,
wherein the message for indicating the sidelink UE information includes first information associated with a first destination for which a transmission resource for a sidelink communication is requested, in case that the transmission resource for the sidelink communication is needed,
wherein the message for indicating the sidelink UE information includes second information associated with a second destination for which a sidelink communication failure is reported, in case that a sidelink radio link failure (RLF) is declared,
wherein the first information includes a first destination identity configured by an upper layer for the first destination and a cast type of the first destination identity, and
wherein the second information includes a second destination identity configured by the upper layer for the second destination and a sidelink failure cause for the second destination.