# US 12,225,406 B2 · Method and apparatus for configuring PDCP device and SDAP device in next-generation mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,406 B2 - Document ID: US12225406B2 - Status: Granted - Kind: B2 - Application number: 18/526,645 - Filed: 2023-12-01 - Published: 2024-03-28 - Granted: 2025-02-11 - Earliest claimed: 2017-06-05 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Seungri Jin; Donggun Kim; Soenghun Kim; Alexander Sayenko - Web page: https://patentgrep.com/patent/US12225406B2 ## CPC - 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 28/02: Traffic management, e.g. flow control or congestion control - H04W 28/0263: {involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]} - H04W 28/10: Flow control {between communication endpoints} - H04W 76/11: Allocation or use of connection identifiers - H04W 76/27: Transitions between radio resource control [RRC] states - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention suggests a method and an operation for configuring a PDCP layer and a service data association protocol (SDAP) layer, thereby facilitating an efficient flow-based QoS process. ## Claims ### Claim 1 A method of a terminal in a wireless communication system, the method comprising: receiving, from a base station, a radio resource control (RRC) message configuring a data radio bearer (DRB), the RRC message configuring the DRB including service data association protocol (SDAP) configuration information for the DRB, a DRB identity for the DRB, and packet data convergence protocol (PDCP) configuration information for the DRB; and configuring an SDAP entity associated with at least one PDCP entity based on the received RRC message configuring the DRB, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes an indicator indicating whether an SDAP header is present or absent for the DRB. ### Claim 2 (depends on 1) The method of claim 1, wherein the SDAP configuration information for the DRB includes an indicator indicating whether or not the DRB associated with the SDAP entity is a default DRB. ### Claim 3 (depends on 1) The method of claim 1, wherein the SDAP configuration information for the DRB includes default DRB information on the SDAP entity. ### Claim 4 (depends on 1) The method of claim 1, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes protocol data unit (PDU) session identifier information for the SDAP entity associated with the DRB. ### Claim 5 (depends on 1) The method of claim 1, wherein the SDAP configuration information for the DRB includes mapping information on at least one DRB of at least one quality of service (QOS) flow. ### Claim 6 A terminal in a wireless communication system, the terminal comprising: a transceiver configured to transmit and receive a signal; and a controller configured to: receive, from a base station via the transceiver, a radio resource control (RRC) message configuring a data radio bearer (DRB), the RRC message configuring the DRB including service data association protocol (SDAP) configuration information for the DRB and a DRB identity for the DRB, and packet data convergence protocol (PDCP) configuration information for the DRB, and configure an SDAP entity associated with at least one PDCP entity based on the received RRC message configuring the DRB, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes an indicator indicating whether an SDAP header is present or absent for the DRB. ### Claim 7 (depends on 6) The terminal of claim 6, wherein the SDAP configuration information for the DRB includes an indicator indicating whether or not the DRB associated with the SDAP entity is a default DRB. ### Claim 8 (depends on 6) The terminal of claim 6, wherein the SDAP configuration information for the DRB includes default DRB information on the SDAP entity. ### Claim 9 (depends on 6) The terminal of claim 6, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes protocol data unit (PDU) session identifier information for the SDAP entity associated with the DRB. ### Claim 10 (depends on 6) The terminal of claim 6, wherein the SDAP configuration information for the DRB includes mapping information on at least one DRB of at least one quality of service (QOS) flow. ### Claim 11 A method of a base station in a wireless communication system, the method comprising: generating a radio resource control (RRC) message configuring a data radio bearer (DRB), the RRC message configuring the DRB including service data association protocol (SDAP) configuration information for the DRB, a DRB identity for the DRB, and packet data convergence protocol (PDCP) configuration information for the DRB; and transmitting, to a terminal, the RRC message configuring the DRB, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes an indicator indicating whether an SDAP header is present or absent for the DRB. ### Claim 12 (depends on 11) The method of claim 11, wherein the SDAP configuration information for the DRB includes an indicator indicating whether or not the DRB associated with the SDAP entity is a default DRB. ### Claim 13 (depends on 11) The method of claim 11, wherein the SDAP configuration information for the DRB includes default DRB information on the SDAP entity. ### Claim 14 (depends on 11) The method of claim 11, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes protocol data unit (PDU) session identifier information for the SDAP entity associated with the DRB. ### Claim 15 (depends on 11) The method of claim 11, wherein the SDAP configuration information for the DRB includes mapping information on at least one DRB of at least one quality of service (QOS) flow. ### Claim 16 A base station in a wireless communication system, the base station comprising: a transceiver configured to transmit and receive a signal; and a controller configured to: generate a radio resource control (RRC) message configuring a data radio bearer (DRB), the RRC message configuring the DRB including service data association protocol (SDAP) configuration information for the DRB, a DRB identity for the DRB, and packet data convergence protocol (PDCP) configuration information for the DRB, and transmit, to a terminal via the transceiver, the RRC message configuring the DRB, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes an indicator indicating whether an SDAP header is present or absent for the DRB. ### Claim 17 (depends on 16) The base station of claim 16, wherein the SDAP configuration information for the DRB includes an indicator indicating whether or not the DRB associated with the SDAP entity is a default DRB. ### Claim 18 (depends on 16) The base station of claim 16, wherein the SDAP configuration information for the DRB includes default DRB information on the SDAP entity. ### Claim 19 (depends on 16) The base station of claim 16, wherein the SDAP configuration information for the DRB included in the RRC message configuring the DRB includes protocol data unit (PDU) session identifier information for the SDAP entity associated with the DRB. ### Claim 20 (depends on 16) The base station of claim 16, wherein the SDAP configuration for the DRB information includes mapping information on at least one DRB of at least one quality of service (QOS) flow.