DUAL CONNECTIVITY SUPPORT FOR V2X COMMUNICATION

• US 20200136771A1
• Filed: 10/23/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: XU, JIAN, KIM, SEOKJUNG, BYUN, DAEWOOK
• Granted Patent: US 11,038,638 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 4/44 for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
• CPC Class Codes: H04W 4/46 for vehicle-to-vehicle communication [V2V]
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

A method and apparatus for dual connectivity support for vehicle-to-everything (V2X) communication is provided. When a master node (MN) belonging to a first radio access technology takes role of signaling to a wireless device in multi-RAT dual connectivity (MR-DC) option 3/7, the MN receives authorization information on a second RAT for the wireless device from a core network node, and transmits a request for a radio resource of the second RAT to a secondary node (SN) belonging to the second RAT. The request includes the authorization information on the second RAT for the wireless device. Upon receiving information on the radio resource from the SN, the MN transmits a message to the wireless device based on the information on the radio resource.

Claims

1. A method for a master node (MN) belonging to a first radio access technology (RAT) in a wireless communication system, the method comprising:

receiving authorization information on a second RAT for a wireless device from a core network node;

transmitting a request for a radio resource of the second RAT to a secondary node (SN) belonging to the second RAT, wherein the request includes the authorization information on the second RAT for the wireless device;

receiving information on the radio resource from the SN; and

transmitting a message to the wireless device based on the information on the radio resource.

2. The method of claim 1, wherein the first RAT is a long-term evolution (LTE), and

wherein the second RAT is a 5G new radio access technology (NR).

3. The method of claim 1, wherein the MN is an evolved NodeB (eNB),

wherein the SN is an en-gNB, and

wherein the core network node is a mobility management entity (MME).

4. The method of claim 1, wherein the MN is an ng-eNB,

wherein the SN is a gNB, and

wherein the core network node is an access and mobility management function (AMF).

5. The method of claim 1, wherein the authorization information informs at least one of a vehicle user equipment (UE), a pedestrian UE or other UE.

6. The method of claim 1, wherein it is determined to transmit the message to the wireless device directly based on the authorization information and/or a per-configuration.

7. The method of claim 1, wherein a resource request for vehicle-to-everything (V2X) communication is received from the wireless device.

8. The method of claim 7, wherein the resource request for V2X communication includes information for a NR support UE type.

9. The method of claim 1, wherein the radio resource depends on a type of the wireless device.

10. The method of claim 1, wherein the wireless device is in communication with at least one of a mobile device, a network, and/or autonomous vehicles other than the wireless device.

11. A method for a secondary node (SN) belonging to a second radio access technology (RAT) in a wireless communication system, the method comprising:

receiving a request for a radio resource of the second RAT from a master node (MN) belonging to a first RAT, wherein the request includes authorization information on the second RAT for a wireless device;

determining the radio resource based on the authorization information and a resource pool; and

transmitting information on the radio resource to the MN.

12. The method of claim 11, wherein the first RAT is a long-term evolution (LTE), and

wherein the second RAT is a 5G new radio access technology (NR).

13. The method of claim 11, wherein the MN is an evolved NodeB (eNB),

wherein the SN is an en-gNB, and

wherein the core network node is a mobility management entity (MME).

14. The method of claim 11, wherein the MN is an ng-eNB,

wherein the SN is a gNB, and

wherein the core network node is an access and mobility management function (AMF).

15. The method of claim 11, wherein the radio resource depends on a type of the wireless device.