# US 2019/0357296 A1 · Ue identifier in rrc resume > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357296 A1 - Document ID: US20190357296A1 - Status: Published application - Kind: A1 - Application number: 15/981,461 - Filed: 2018-05-16 - Published: 2019-11-21 - Earliest claimed: 2018-05-16 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget Lm Ericsson (Publ) - Inventors: Oscar Ohlsson; Magnus Stattin - Web page: https://patentgrep.com/patent/US20190357296A1 ## CPC - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 12/06: Authentication - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 76/11: Allocation or use of connection identifiers - H04W 76/34: Selective release of ongoing connections - H04L 63/0807: {using tickets, e.g. Kerberos (cryptographic mechanisms or cryptographic arrangements for entity authentication using tickets or tokens H04L9/3213)} - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 76/25: Maintenance of established connections - H04W 76/38: triggered by timers - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Systems and methods relating to resuming a suspended connection of a wireless device in a wireless system are disclosed. In some embodiments, a method of operation of a wireless device comprises receiving (100), from a first network node, a first message that instructs the wireless device to suspend a connection between the wireless device and the wireless system. The method further comprises, upon an occurrence of a triggering event, transmitting (108), to a second network node, a second message that requests that the connection. The second message comprises a resume identifier that comprises a part that identifies the first network node and a part that identifies the wireless device. The method further comprises receiving (116), from the second network node, a third message that indicates that the connection between the wireless device and the wireless system is being resumed. ## Claims ### Claim 1 A method of operation of a wireless device in a wireless network, comprising: receiving, from a first network node, a first message that instructs the wireless device to suspend a connection between the wireless device and the wireless network where, upon receiving the first message, the wireless device stores a wireless device context of the wireless device and enters a suspended mode of operation; upon an occurrence of a triggering event, transmitting, to a second network node, a second message that requests that the connection between the wireless device and the wireless network be resumed, the second message comprising a resume identifier and the resume identifier comprising: a part that identifies the first network node to which the wireless device was connected upon suspending the connection; and a part that identifies the wireless device; and receiving, from the second network node, a third message that indicates that the connection between the wireless device and the wireless network is being resumed using the stored wireless device context of the wireless device. ### Claim 2 (canceled) ### Claim 3 (canceled) ### Claim 4 (canceled) ### Claim 5 (canceled) ### Claim 6 (canceled) ### Claim 7 (canceled) ### Claim 8 (canceled) ### Claim 9 (canceled) ### Claim 10 (depends on 1) The method of claim 1 wherein a Medium Access Control (MAC) control element associated with the third message comprises a copy of a portion of the second message that requests that the connection between the wireless device and the wireless network be resumed. ### Claim 11 (depends on 10) The method of claim 10 wherein the portion of the second message comprises the part of the resume identifier that identifies the wireless device. ### Claim 12 (canceled) ### Claim 13 (canceled) ### Claim 14 (depends on 10) The method of claim 10 wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit. ### Claim 15 (depends on 10) The method of claim 10 wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit to a size of an existing content resolution identity MAC control element in LTE. ### Claim 16 (depends on 10) The method of claim 10 wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit to 48 bits. ### Claim 17 (canceled) ### Claim 18 (canceled) ### Claim 19 (canceled) ### Claim 20 A wireless device for a wireless network, comprising: an interface operable to provide wireless communication between the wireless device and one or more network nodes; a processor; and storage comprising instructions executable by the processor whereby the wireless device is operable to: receive, from a first network node via the interface, a first message that instructs the wireless device to suspend a connection between the wireless device and the wireless network where, upon receiving the first message, the wireless device stores a wireless device context of the wireless device and enters a suspended mode of operation; upon an occurrence of a triggering event, transmit, to a second network node via the interface, a second message that requests that the connection between the wireless device and the wireless network be resumed, the second message comprising a resume identifier and the resume identifier comprising: a part that identifies the first network node to which the wireless device was connected upon suspending the connection; and a part that identifies the wireless device; and receive, from the second network node via the interface, a third message that indicates that the connection between the wireless device and the wireless network is being resumed using the stored wireless device context of the wireless device. ### Claim 21 (canceled) ### Claim 22 (canceled) ### Claim 23 (canceled) ### Claim 24 A method of operation of a network node in a wireless network, comprising: receiving, from a wireless device, a first message that requests that a connection between the wireless device and the wireless network be resumed, the first message comprising a resume identifier and the resume identifier comprising: a part that identifies a network node to which the wireless device was connected upon suspending the connection; and a part that identifies the wireless device; and obtaining, from the network node identified by the resume identifier, a wireless device context of the wireless device previously stored upon suspending the connection between the wireless device and the wireless network; and transmitting, to the wireless device, a second message that indicates that the connection between the wireless device and the wireless network is being resumed using the stored wireless device context of the wireless device. ### Claim 25 (canceled) ### Claim 26 (canceled) ### Claim 27 (canceled) ### Claim 28 (canceled) ### Claim 29 (canceled) ### Claim 30 (canceled) ### Claim 31 (canceled) ### Claim 32 (canceled) ### Claim 33 (canceled) ### Claim 34 (canceled) ### Claim 35 (canceled) ### Claim 36 (canceled) ### Claim 37 (depends on 24) The method of claim 24 wherein a Medium Access Control (MAC) control element associated with the second message comprises a copy of a portion of the first message that requests that the connection between the wireless device and the wireless network be resumed. ### Claim 38 (depends on 37) The method of claim 37 wherein the portion of the first message comprises the part of the resume identifier that identifies the wireless device. ### Claim 39 (canceled) ### Claim 40 (canceled) ### Claim 41 (depends on 37) The method of claim 37 wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit. ### Claim 42 (depends on 37) The method of claim 37 wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit to a size of an existing content resolution identity MAC control element in LTE. ### Claim 43 (depends on 37) The method of claim 37 wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit to 48 bits. ### Claim 44 (canceled) ### Claim 45 (canceled) ### Claim 46 (canceled) ### Claim 47 A network node for a wireless network, comprising: an interface; a processor; and storage comprising instructions executable by the processor whereby the network node is operable to: receive, from a wireless device via the interface, a first message that requests that a connection between the wireless device and the wireless network be resumed, the first message comprising a resume identifier and the resume identifier comprising: a part that identifies a network node to which the wireless device was connected upon suspending the connection; and a part that identifies the wireless device; and obtain, from the network node identified by the resume identifier, a wireless device context of the wireless device previously stored upon suspending the connection between the wireless device and the wireless network; and transmit, to the wireless device via the interface, a second message that indicates that the connection between the wireless device and the wireless network is being resumed using the stored wireless device context of the wireless device. ### Claim 48 (canceled) ### Claim 49 (canceled) ### Claim 50 (canceled) ### Claim 51 (canceled) ### Claim 52 (canceled) ### Claim 53 (depends on 20) The wireless device of claim 20, wherein a Medium Access Control (MAC) control element associated with the third message comprises a copy of a portion of the second message that requests that the connection between the wireless device and the wireless network be resumed. ### Claim 54 (depends on 53) The wireless device of claim 53, wherein the portion of the second message comprises the part of the resume identifier that identifies the wireless device. ### Claim 55 (depends on 53) The wireless device of claim 53, wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit. ### Claim 56 (depends on 53) The wireless device of claim 53, wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit to a size of an existing content resolution identity MAC control element in LTE. ### Claim 57 (depends on 53) The wireless device of claim 53, wherein the second message is transmitted in an uplink common control channel service data unit, and the portion of the second message is provided by truncating the uplink common control channel service data unit to 48 bits. ### Claim 58 (depends on 57) The network node of claim 57, wherein a Medium Access Control (MAC) control element associated with the second message comprises a copy of a portion of the first message that requests that the connection between the wireless device and the wireless network be resumed. ### Claim 59 (depends on 57) The network node of claim 57, wherein the portion of the first message comprises the part of the resume identifier that identifies the wireless device. ### Claim 60 (depends on 57) The network node of claim 57, wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit. ### Claim 61 (depends on 57) The network node of claim 57, wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit to a size of an existing content resolution identity MAC control element in LTE. ### Claim 62 (depends on 57) The network node of claim 57, wherein the first message is transmitted in an uplink common control channel service data unit, and the portion of the first message is provided by truncating the uplink common control channel service data unit to 48 bits.