# US 10,771,929 B2 · Method and apparatus for performing V2X communication on basis of cell group information

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

- Number: US 10,771,929 B2
- Document ID: US10771929B2
- Status: Granted
- Kind: B2
- Application number: 16/085,952
- Filed: 2017-03-20
- Published: 2019-03-21
- Granted: 2020-09-08
- Earliest claimed: 2016-03-18
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Daewook Byun; Jian Xu
- Web page: https://patentgrep.com/patent/US10771929B2

## CPC

- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04L 12/189: {in combination with wireless systems (selective distribution or broadcast in wireless communication networks H04W4/06)}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 72/30: Resource management for broadcast services
- H04W 72/543: based on requested quality, e.g. QoS
- H04W 76/00: Connection management
- H04W 76/14: Direct-mode setup
- H04W 76/40: for selective distribution or broadcast
- 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)

## Abstract

Provided are a method for performing, by a multi-cell coordination entity (MCE), a vehicle-to-everything (V2X) communication in a wireless communication system, and an apparatus for supporting the same. The method comprises the steps of: receiving, from an MME, information on a cell group and an indication which instructs the MCE to perform either of a multicast broadcast single frequency network (MBSFN) operation or a single-cell point-to-multipoint (SCPTM) operation; determining to perform either of the MBSFN operation or the SCPTM operation on the basis of the indication; and transmitting, to a base station, the information on the cell group received from the MME, on the basis of the information on the cell group and the determined operation, wherein the information on the cell group may be information related to a cell group to which a V2X message is to be delivered, and the base station may be a base station that manages cells which belong to the cell group to which the V2X message is to be delivered.

## Claims

### Claim 1

A method for performing vehicle-to-everything (V2X) communication by a multi-cell coordination entity (MCE) in a wireless communication system, the method comprising:
receiving information on a cell group from a first base station (BS);
transmitting the information on the cell group received from the first BS to a mobility management entity (MME);
receiving an MBMS session start request message including the information on the cell group from the MME; and
transmitting the MBMS session start request message including the information on the cell group received from the MME to one or more second BSs based on the information on the cell group received from the MME,
wherein the information on the cell group is information related to a cell group to which a V2X message generated in a cell managed by the first BS is to be transferred, and
wherein the second BS is a BS that manages a cell belonging to the cell group to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 2 (depends on 1)

The method of claim 1, wherein the information on the cell group includes an index of the cell group to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 3 (depends on 1)

The method of claim 1, wherein the information on the cell group includes a list of an ID of a cell to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 4 (depends on 1)

The method of claim 1, wherein the one or more second BSs include the first BS.

### Claim 5 (depends on 1)

The method of claim 1, wherein the one or more second BSs include the first BS and a neighbor BS of the first BS.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
based on the MBMS session start request message being accepted by the second BS, receiving an MBMS session start response message from the second BS.

### Claim 7 (depends on 6)

The method of claim 6, further comprising:
transmitting an MBMS session start response message including a requested result of an MBMS E-UTRAN radio access bearer (E-RAB) to the MME.

### Claim 8

A method for performing vehicle-to-everything (V2X) communication by a multi-cell coordination entity (MCE) in a wireless communication system, the method comprising:
receiving information on a cell group from a first base station (BS);
transmitting the information on the cell group received from the first BS to a mobility management entity (MME);
receiving an MBMS session update request message including the information on the cell group from the MME; and
transmitting the MBMS session update request message including the information on the cell group received from the MME to one or more second BSs based on the information on the cell group received from the MME,
wherein the information on the cell group is information related to a cell group to which a V2X message generated in a cell managed by the first BS is to be transferred, and
wherein the second BS is a BS that manages a cell belonging to the cell group to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 9 (depends on 8)

The method of claim 8, wherein the information on the cell group includes an index of the cell group to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 10 (depends on 8)

The method of claim 8, wherein the information on the cell group includes a list of an ID of a cell to which the V2X message generated in the cell managed by the first BS is to be transferred.

### Claim 11 (depends on 8)

The method of claim 8, wherein the one or more second BSs include the first BS.

### Claim 12

A multi-cell coordination entity (MCE) for performing vehicle-to-everything (V2X) communication, the MCE comprising:
one or more memories storing instructions;
one or more transceivers; and
one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to:
receive information on a cell group from a first base station (BS);
transmit the information on the cell group received from the first BS to a mobility management entity (MME);
receive an MBMS session start request message including the information on the cell group from the MME; and
transmit the MBMS session start request message including the information on the cell group received from the MME to one or more second BSs based on the information on the cell group received from the MME,
wherein the information on the cell group is information related to a cell group to which a V2X message generated in a cell managed by the first BS is to be transferred, and
wherein the second BS is a BS that manages a cell belonging to the cell group to which the V2X message generated in the cell managed by the first BS is to be transferred.