# US 12,192,823 B2 · Method and apparatus for establishing guaranteed bit rate (GBR) quality of service (QoS) flow in session > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,823 B2 - Document ID: US12192823B2 - Status: Granted - Kind: B2 - Application number: 17/951,765 - Filed: 2022-09-23 - Published: 2023-12-28 - Granted: 2025-01-07 - Earliest claimed: 2019-05-21 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Anni Wei; Haiyang Sun; Chunshan Xiong - Web page: https://patentgrep.com/patent/US12192823B2 ## CPC - H04L 12/1403: {Architecture for metering, charging or billing} - 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)} - H04L 12/14: Charging, metering or billing arrangements specially adapted for data communications, e.g. authentication, authorisation and accounting [AAA] framework - H04L 12/1407: {Policy-and-charging control [PCC] architecture} - H04L 47/20: Traffic policing - H04M 15/66: {Policy and charging system} - H04M 15/8016: {based on quality of service [QoS]} - H04M 15/8038: {Roaming or handoff} - H04M 15/8228: {Session based} - H04W 4/24: Accounting or billing - H04W 8/08: Mobility data transfer - H04W 28/0215: {based on user or device properties, e.g. MTC-capable devices (services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51)} - H04W 28/24: Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] - H04W 48/16: Discovering, processing access restriction or access information - H04W 48/18: Selecting a network or a communication service - H04W 76/10: Connection setup - H04W 8/18: Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A method includes: receiving, by a session management function (SMF), first information from an access and mobility management function (AMF); obtaining, by the SMF, protocol data unit (PDU) session management subscription information from a unified data management (UDM) module; and when dynamic policy and charging control (PCC) is not deployed, establishing, by the SMF based on the first information and at least one of the PDU session management subscription information or local PDU session policy information of the SMF, a default guaranteed bit rate (GBR) quality of service (QoS) flow in the PDU session. ## Claims ### Claim 1 A method for establishing a guaranteed bit rate (GBR) quality of service (QoS) flow in a session, wherein the method comprises: receiving, by a session management function entity and from an access and mobility management function entity, first information requesting establishment of the session; and establishing, by the session management function entity, a default GBR QoS flow in the session based on local session policy information of the session management function entity; or establishing, by the session management function entity, the default GBR QoS flow in the session based on session policy information from a policy control function entity or based on session management subscription information from a unified data management module entity. ### Claim 2 (depends on 1) The method of claim 1, wherein the first information comprises a data network name (DNN), and wherein establishing, by the session management function entity, the default GBR QoS flow comprises establishing, by the session management function entity, the default GBR QoS flow based on the DNN. ### Claim 3 (depends on 2) The method of claim 2, wherein the first information comprises single network slice selection assistance information (S-NSSAI), a subscription permanent identifier, service indication information, a default GBR QoS flow indication, QoS index information, or QoS parameter information. ### Claim 4 (depends on 1) The method of claim 1, wherein the default GBR QoS flow comprises a time-sensitive GBR QoS flow for transmitting time-sensitive service data. ### Claim 5 (depends on 1) The method of claim 1, wherein the session comprises a protocol data unit (PDU) session. ### Claim 6 (depends on 1) The method of claim 1, wherein the local session policy information comprises policy information of the default GBR QoS flow. ### Claim 7 An apparatus implementing session management for establishing a guaranteed bit rate (GBR) quality of service (QoS) flow in a session, the apparatus comprising: a memory configured to store instructions; and a processor coupled to the memory and configured to execute the instructions to cause the apparatus to: receive, from an access and mobility management function entity, first information requesting establishment of the session; and establish a default GBR QoS flow in the session based on local session policy information of the apparatus; or establish the default GBR QoS flow in the session based on session policy information from a policy control function entity or based on session management subscription information from a unified data management module entity. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the first information comprises a data network name (DNN), and wherein the processor is further configured to execute the instructions to cause the apparatus to establish the default GBR QoS flow by establishing the default GBR QoS flow based on the DNN. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the first information comprises single network slice selection assistance information (S-NSSAI), a subscription permanent identifier, service indication information, a default GBR QoS flow indication, QoS index information, or QoS parameter information. ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the default GBR QoS flow comprises a time-sensitive GBR QoS flow for transmitting time-sensitive service data. ### Claim 11 (depends on 7) The apparatus of claim 7, wherein the session comprises a protocol data unit (PDU) session. ### Claim 12 (depends on 7) The apparatus of claim 7, wherein the processor is configured to execute the instructions to cause the apparatus to establish the default GBR QoS flow by establishing the default GBR QoS flow based on the local session policy information when dynamic policy and charging control (PCC) is not deployed. ### Claim 13 (depends on 7) The apparatus of claim 7, wherein the local session policy information comprises policy information of the default GBR QoS flow. ### Claim 14 (depends on 7) The apparatus of claim 7, wherein the processor is configured to execute the instructions to cause the apparatus to further establish the default GBR QoS flow by establishing the default GBR QoS flow based on the session management subscription information or the session policy information when dynamic policy and charging control (PCC) is deployed. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein the processor is further configured to execute the instructions to cause the apparatus to: send a subscription information request message to the unified data management module entity; and receive the session management subscription information from the unified data management module entity in response to the subscription information request message, wherein the session management subscription information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR). ### Claim 16 (depends on 14) The apparatus of claim 14, wherein the processor is further configured to execute the instructions to cause the apparatus to: send a policy information request message to the policy control function entity; and receive the session policy information from the policy control function entity in response to the policy information request message, wherein the session policy information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR). ### Claim 17 (depends on 1) The method of claim 1, wherein establishing, by the session management function entity, the default GBR QoS flow comprises establishing, by the session management function entity, the default GBR QoS flow based on the local session policy information when dynamic policy and charging control (PCC) is not deployed. ### Claim 18 (depends on 1) The method of claim 1, wherein establishing, by the session management function entity, the default GBR QoS flow comprises establishing, by the session management function entity, the default GBR QoS flow based on the session management subscription information or the session policy information when dynamic policy and charging control (PCC) is deployed. ### Claim 19 (depends on 18) The method of claim 18, further comprising: sending, by the session management function entity, a subscription information request message to the unified data management module entity; and receiving, by the session management function entity, the session management subscription information from the unified data management module entity in response to the subscription information request message, wherein the session management subscription information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR). ### Claim 20 (depends on 18) The method of claim 18, further comprising: sending, by the session management function entity, a policy information request message to the policy control function entity; and receiving, by the session management function entity, the session policy information from the policy control function entity in response to the policy information request message, wherein the session policy information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR). ### Claim 21 (depends on 1) The method of claim 1, further comprising sending, by the access and mobility management function entity, the first information. ### Claim 22 A system comprising: an access and mobility management function entity configured to send first information, wherein the first information requests establishment of a session; and a session management function entity configured to: receive the first information from the access and mobility management function entity; and establish a default guaranteed bit rate (GBR) quality of service (QoS) flow in the session based on local session policy information of the session management function entity; or establish the default GBR QoS flow based on session policy information from a policy control function entity or based on session management subscription information from a unified data management module entity. ### Claim 23 (depends on 22) The system of claim 22, wherein the session management function entity is configured to establish the default GBR QoS flow by establishing the default GBR QoS flow based on the local session policy information when dynamic policy and charging control (PCC) is not deployed. ### Claim 24 (depends on 22) The system of claim 22, wherein the session management function entity is configured to further establish the default GBR QoS flow by establishing the default GBR QoS flow based on the session management subscription information or the session policy information when dynamic policy and charging control (PCC) is deployed. ### Claim 25 (depends on 22) The system of claim 22, wherein the first information comprises a data network name (DNN), and wherein the session management function entity is configured to establish the default GBR QoS flow by establishing the default GBR QoS flow based on the DNN. ### Claim 26 (depends on 19) The method of claim 19, further comprising: receiving, by the unified data management module entity, the subscription information request message; and sending, by the unified data management module entity, the session management subscription information to the session management function entity. ### Claim 27 (depends on 20) The method of claim 20, further comprising: receiving, by the policy control function entity, the policy information request message; and sending, by the policy control function entity, the session policy information to the session management function entity. ### Claim 28 (depends on 24) The system of claim 24, further comprising a unified data management module entity, wherein the session management function entity is further configured to: send a subscription information request message to the unified data management module entity; and receive the session management subscription information from the unified data management module entity in response to the subscription information request message, wherein the session management subscription information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR), and wherein the unified data management module entity is configured to: receive the subscription information request message; and send the session management subscription information to the session management function entity. ### Claim 29 (depends on 24) The system of claim 24, further comprising the policy control function entity, wherein the session management function entity is further configured to: send a policy information request message to the policy control function entity; and receive the session policy information from the policy control function entity in response to the policy information request message, wherein the session policy information comprises a fifth generation QoS identifier (5QI), an allocation and retention priority (ARP), a guaranteed flow bit rate (GFBR), or a maximum flow bit rate (MFBR), and wherein the policy control function entity is configured to: receive the policy information request message; and send the session policy information to the session management function entity.