# US 2022/0286355 A1 · Inactive Context Management > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0286355 A1 - Document ID: US20220286355A1 - Status: Published application - Kind: A1 - Application number: 17/825,096 - Filed: 2022-05-26 - Published: 2022-09-08 - Earliest claimed: 2021-01-14 - Assignees: Ofinno, LLC - Applicants: Ofinno, LLC - Inventors: Kyungmin Park; Taehun Kim; Esmael Hejazi Dinan; Hyoungsuk Jeon; Jinsook Ryu; Peyman Talebi Fard - Web page: https://patentgrep.com/patent/US20220286355A1 ## CPC - H04L 41/0806: for initial configuration or provisioning, e.g. plug-and-play - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 24/02: Arrangements for optimising operational condition - H04W 76/10: Connection setup - H04W 76/15: Setup of multiple wireless link connections - H04W 76/19: Connection re-establishment - H04W 76/30: Connection release - H04W 76/34: Selective release of ongoing connections - H04W 80/02: Data link layer protocols - 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) ## Abstract A base station central unit (CU) sends, to a base station distributed unit (DU), a notification indicating release of configuration parameters for a small data transmission (SDT) procedure of a wireless device. ## Claims ### Claim 1 A method comprising: sending, by a base station central unit (CU) to a base station distributed unit (DU), a notification indicating release of configuration parameters for a small data transmission (SDT) procedure of a wireless device. ### Claim 2 (depends on 1) The method of claim 1, wherein the notification is based on at least one of: a resource status threshold value of at least one cell of the base station DU, wherein the base station DU releases the configuration parameters in response to available resources of the at least one cell or of the base station DU being equal to or less than the resource status threshold value; an inactive time duration threshold value of the wireless device, wherein the base station DU releases the configuration parameters in response to not receiving a signal from the wireless device for the inactive time duration threshold value; or a configuration time duration threshold value, wherein the base station DU releases the configuration parameters in response to storing the configuration parameters for the configuration time duration threshold value. ### Claim 3 (depends on 1) The method of claim 1, wherein the sending is based on a transition of the wireless device to a radio resource control (RRC) connected state from at least one of a RRC inactive state or an RRC idle state. ### Claim 4 (depends on 3) The method of claim 3, further comprising sending, by the base station CU to the base station DU, a message comprising: the configuration parameters; and a RRC message for the wireless device to transition to at least one of the RRC inactive state or the RRC idle state. ### Claim 5 (depends on 4) The method of claim 4, wherein the message comprises at least one of: a user equipment (UE) context configuration request; a UE context setup request; a UE context modification request; or a UE context release command. ### Claim 6 (depends on 4) The method of claim 4, wherein the message comprises at least one of: a base station CU configuration update message; or a base station DU configuration update acknowledge message. ### Claim 7 (depends on 4) The method of claim 4, wherein: the message comprises an indication field requesting to store the configuration parameters after the wireless device transitions to at least one of the RRC inactive state or the RRC idle state; and based on the indication field, the base station DU stores the configuration parameters after the wireless device transitions to the RRC inactive state or the RRC idle state. ### Claim 8 (depends on 4) The method of claim 4, wherein the message further comprises one or more storing conditions for storing the configuration parameters, one or more storing conditions comprising at least one of: a resource status threshold value of at least one cell of the base station DU, wherein the base station DU releases the configuration parameters in response to available resources of the at least one cell or of the base station DU being equal to or less than the resource status threshold value; an inactive time duration threshold value of the wireless device, wherein the base station DU releases the configuration parameters in response to not receiving a signal from the wireless device for the inactive time duration threshold value; or a configuration time duration threshold value, wherein the base station DU releases the configuration parameters in response to storing the configuration parameters for the configuration time duration threshold value. ### Claim 9 (depends on 4) The method of claim 4, wherein the RRC message comprises suspend configuration parameters for the wireless device to use in at least one of the RRC inactive state or the RRC idle state, the suspend configuration parameters comprising at least one of: radio link control (RLC) layer configuration parameters for at least one bearer of the wireless device; parameters for configured grant resources for the wireless device in at least one of the RRC inactive state or the RRC idle state; random access parameters; physical layer configuration parameters; or medium access control (MAC) layer configuration parameters. ### Claim 10 (depends on 1) The method of claim 1, wherein the configuration parameters are associated with one or more cells of the base station DU. ### Claim 11 A method comprising: receiving, by a base station distributed unit (DU) from a base station central unit (CU), a notification indicating release of configuration parameters for a small data transmission (SDT) procedure of a wireless device, wherein the notification is based on a transition of the wireless device from a radio resource control (RRC) connected state to at least one of a RRC inactive state or an RRC idle state. ### Claim 12 (depends on 11) The method of claim 11, further comprising releasing the configuration parameters. ### Claim 13 (depends on 11) The method of claim 11, further comprising receiving, by the base station DU from the base station CU, a message comprising: the configuration parameters; and a RRC message for the wireless device to transition to at least one of the RRC inactive state or the RRC idle state. ### Claim 14 (depends on 13) The method of claim 13, further comprising sending the RRC message to the wireless device. ### Claim 15 (depends on 13) The method of claim 13, wherein the message further comprises at least one of: a user equipment (UE) context configuration request; a UE context setup request; a UE context modification request; or a UE context release command. ### Claim 16 (depends on 13) The method of claim 13, wherein the message further comprises at least one of: a base station CU configuration update message; or a base station DU configuration update acknowledge message. ### Claim 17 (depends on 13) The method of claim 13, wherein the message further comprises an indication field requesting to store the configuration parameters after the wireless device transitions to at least one of the RRC inactive state or the RRC idle state. ### Claim 18 (depends on 17) The method of claim 17, further comprising storing, based on the indication field, the configuration parameters after the wireless device transitions to at least one of the RRC inactive state or the RRC idle state. ### Claim 19 (depends on 13) The method of claim 13, wherein the message further comprises one or more storing conditions for storing the configuration parameters, one or more storing conditions comprising at least one of: a resource status threshold value of at least one cell of the base station DU, wherein the base station DU releases the configuration parameters in response to available resources of the at least one cell or of the base station DU being equal to or less than the resource status threshold value; an inactive time duration threshold value of the wireless device, wherein the base station DU releases the configuration parameters in response to not receiving a signal from the wireless device for the inactive time duration threshold value; or a configuration time duration threshold value, wherein the base station DU releases the configuration parameters in response to storing the configuration parameters for the configuration time duration threshold value. ### Claim 20 (depends on 13) The method of claim 13, wherein the RRC message comprises suspend configuration parameters for the wireless device to use in at least one of the RRC inactive state or the RRC idle state, the suspend configuration parameters comprising at least one of: radio link control (RLC) layer configuration parameters for at least one bearer of the wireless device; parameters for configured grant resources for the wireless device in at least one of the RRC inactive state or the RRC idle state; random access parameters; physical layer configuration parameters; or medium access control (MAC) layer configuration parameters.