Method and apparatus for performing switching control between uplink and sidelink in wireless communication system

• US 10,327,223 B2
• Filed: 12/28/2015
• Issued: 06/18/2019
• Est. Priority Date: 12/30/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Youngdae, Jung, Sunghoon
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): Kim, Minjung
• Application Number:
  US15/538,427
• Publication Number:
  US 20180007606A1
• Time in Patent Office: 1,268 Days
• CPC Class Codes: H04L 2209/80 Wireless
• CPC Class Codes: H04L 2209/84 Vehicles
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 12/037 of the control plane, e.g. signalling traffic
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 36/0005 Control or signalling for completing the hand-off
• CPC Class Codes: H04W 36/36 by user or terminal equipment
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• 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 68/005 Transmission of information for alerting of incoming communication
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 80/02 : Data link layer protocols
• CPC Class Codes: H04W 84/005 : Moving wireless networks

Abstract

A method and apparatus for performing switching control between uplink (UL) and sidelink (SL) in a wireless communication system is provided. A user equipment (UE) receives control information for a transmission direction of a specific type of communication from a network, and determines one of the UL or the SL as the transmission direction of the specific type of communication based on the control information. The specific type of communication may correspond to vehicle-to-everything (V2X) communication.

Claims

1. A method for a user equipment (UE) in a wireless communication system, the method comprising:

receiving, by a radio resource control (RRC) layer of the UE, control information comprising a first factor and a second factor from a network;

deciding, by a switching layer of the UE, whether to transmit data or not based on the first factor, wherein the switching layer is located between an application layer and a packet data convergence protocol (PDCP) layer; and

when the switching layer of the UE decides to transmit the data based on the first factor;

determining, by the switching layer, one of an uplink (UL) or a sidelink (SL) as a transmission direction based on the second factor;

transmitting the data and information informing that the data is a vehicle-to-everything (V2X) message related to road safety to other UEs on the SL, if the SL is determined as the transmission direction; and

transmitting the data and information informing that the data is the V2X message related to the road safety to the network on the UL, if the UL is determined as the transmission direction,

wherein the UE is a vehicle, and

wherein the second factor is determined based on a type of the data.

2. The method of claim 1, wherein the control information is provided per a radio resource control (RRC) state.

3. The method of claim 1, further comprising performing a specific type of communication via the determined one of the UL or the SL.

4. The method of claim 3, wherein the specific type of communication is a vehicular communication between vehicles or between a vehicle and other type of device.

5. The method of claim 4, wherein the other type of device is one of an evolved NodeB (eNB), a new entity for the vehicular communication, a new gateway for the vehicular communication, or a road side unit (RSU).

6. The method of claim 5, wherein the network corresponds to one of an evolved NodeB (eNB), a new entity for the vehicular communication, a new gateway for the vehicular communication, or a RSU.

7. A user equipment (UE) comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver, and configured to;

decide, by a switching layer of the UE, whether to transmit data or not based on a first factor, wherein the switching layer is located between an application layer and a packet data convergence protocol (PDCP) layer, and

when the UE decides to control the transceiver to transmit the data based on the first factor;

determine, by the switching layer, one of an uplink (UL) or a sidelink (SL) as a transmission direction based on a second factor,

control the transceiver to transmit the data and information informing that the data is a vehicle-to-everything (V2X) message related to road safety to other UEs on the SL, if the SL is determined as the transmission direction, and

control the transceiver to transmit the data and information informing that the data is the V2X message related to the road safety to the network on the UL, if the UL is determined as the transmission direction,

wherein the UE is a vehicle, and

wherein the second factor is determined based on a type of the data.