# US 12,192,866 B2 · Apparatus and method for configuring and managing quality of service of radio bearer for direct communication in wireless communication system

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- Number: US 12,192,866 B2
- Document ID: US12192866B2
- Status: Granted
- Kind: B2
- Application number: 18/490,577
- Filed: 2023-10-19
- Published: 2024-02-08
- Granted: 2025-01-07
- Earliest claimed: 2019-01-30
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Hyunjeong Kang; Sangkyu Baek
- Web page: https://patentgrep.com/patent/US12192866B2

## CPC

- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 76/14: Direct-mode setup
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 28/0268: {using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24)}
- H04W 40/246: {Connectivity information discovery}
- H04W 76/27: Transitions between radio resource control [RRC] states
- 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

The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). A method for operating a user equipment in a wireless communication system includes determining service information required by a vehicle to everything (V2X) application and determining a V2X transmission mode. The method also includes determining quality of service (QoS) information required by the V2X application and acquiring sidelink radio bearer configuration information corresponding to the QoS information. The method further includes transmitting and receiving a V2X packet of direct communication using the acquired sidelink radio bearer configuration information.

## Claims

### Claim 1

A method performed by a first user equipment (UE) in a wireless communication system, the method comprising:
transmitting, to a base station (BS), a sidelink UE information message including quality of service (QOS) information for a sidelink (SL) communication;
obtaining sidelink radio bearer (SLRB) configuration information;
transmitting, to a second UE via a radio resource control (RRC) signaling, an SLRB configuration for the SL communication; and
performing the SL communication with the second UE based on the SLRB configuration information,
wherein the QoS information for the SL communication includes a 5G QOS identifier (5QI) value and range information indicating a minimum communication range, and
wherein the SLRB configuration information includes information on a discard timer and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

### Claim 2 (depends on 1)

The method of claim 1, wherein the SLRB configuration information is received from the BS via an RRC message or a system information message, or is preconfigured to the first UE.

### Claim 3 (depends on 1)

The method of claim 1,
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate, and
wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window.

### Claim 4 (depends on 1)

The method of claim 1, wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.

### Claim 5 (depends on 1)

The method of claim 1, wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM, or sequence number (SN)-field length.

### Claim 6 (depends on 1)

The method of claim 1, wherein the SLRB configuration information further includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), and information on a bucket size duration (BSD).

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
selecting one of unicast, groupcast, or broadcast as a mode for transmitting a service packet required by a SL application.

### Claim 8

A first user equipment (UE) in a wireless communication system, the first UE comprising:
a transceiver; and
a controller coupled with the transceiver, and configured to:
transmit, to a base station (BS), a sidelink UE information message including quality of service (QOS) information for a sidelink (SL) communication,
obtain sidelink radio bearer (SLRB) configuration information,
transmit, to a second UE via a radio resource control (RRC) signaling, an SLRB configuration for the SL communication, and
perform the SL communication with the second UE based on the SLRB configuration information,
wherein the QoS information for the SL communication includes a 5G QOS identifier (5QI) value and range information indicating a minimum communication range, and
wherein the SLRB configuration information includes information on a discard timer and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

### Claim 9 (depends on 8)

The UE of claim 8, wherein the SLRB configuration information is received from the BS via an RRC message or a system information message, or is preconfigured to the first UE.

### Claim 10 (depends on 8)

The UE of claim 8,
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate, and
wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window.

### Claim 11 (depends on 8)

The UE of claim 8, wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.

### Claim 12 (depends on 8)

The UE of claim 8, wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM, or sequence number (SN)-field length.

### Claim 13 (depends on 8)

The UE of claim 8, wherein the SLRB configuration information further includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), and information on a bucket size duration (BSD).

### Claim 14 (depends on 8)

The UE of claim 8, wherein the controller is further configured to:
select one of unicast, groupcast, or broadcast as a mode for transmitting a service packet required by a SL application.

### Claim 15

A method performed by a base station (BS) in a wireless communication system, the method comprising:
receiving, from a user equipment (UE) via a radio resource control (RRC) message or a system information message, a sidelink UE information message including quality of service (QOS) information for a sidelink (SL) communication; and
transmitting, to the UE, sidelink radio bearer (SLRB) configuration information,
wherein the QoS information for the SL communication includes a 5G QoS identifier (5QI) value and range information indicating a minimum communication range, and
wherein the SLRB configuration information includes information on a discard timer and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

### Claim 16 (depends on 15)

The method of claim 15, wherein the SLRB configuration information is preconfigured to the UE.

### Claim 17 (depends on 15)

The method of claim 15,
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate, and
wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window.

### Claim 18 (depends on 15)

The method of claim 15, wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.

### Claim 19 (depends on 15)

The method of claim 15, wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM, or sequence number (SN)-field length.

### Claim 20 (depends on 15)

The method of claim 15, wherein the SLRB configuration information further includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), and information on a bucket size duration (BSD).

### Claim 21

A base station (BS) in a wireless communication system, the BS comprising:
a transceiver; and
a controller coupled with the transceiver, and configured to:
receive, from a user equipment (UE) via a radio resource control (RRC) message or a system information message, a sidelink (SL) UE information message including quality of service (QOS) information for a sidelink (SL) communication, and
transmit, to the UE, sidelink radio bearer (SLRB) configuration information,
wherein the QoS information for the SL communication includes a 5G QoS identifier (5QI) value and range information indicating a minimum communication range, and
wherein the SLRB configuration information includes information on a discard timer, and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

### Claim 22 (depends on 21)

The BS of claim 21, wherein the SLRB configuration information is preconfigured to the UE.

### Claim 23 (depends on 21)

The BS of claim 21,
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate, and
wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window.

### Claim 24 (depends on 21)

The BS of claim 21, wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.

### Claim 25 (depends on 21)

The BS of claim 21, wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM or sequence number SN)-field length.

### Claim 26 (depends on 21)

The BS of claim 21, wherein the SLRB configuration information further includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), and information on a bucket size duration (BSD).