# US 11,115,822 B2 · Radio access capabilities of a wireless device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,822 B2 - Document ID: US11115822B2 - Status: Granted - Kind: B2 - Application number: 17/160,117 - Filed: 2021-01-27 - Published: 2021-05-20 - Granted: 2021-09-07 - Earliest claimed: 2019-01-15 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget Lm Ericsson (Publ) - Inventors: Oscar Ohlsson; Magnus Stattin; Prajwol Kumar Nakarmi; Peter Hedman; Malik Wahaj Arshad - Web page: https://patentgrep.com/patent/US11115822B2 ## CPC - H04W 12/106: Packet or message integrity - H04L 63/205: {involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved (negotiation of communication capabilities H04L69/24)} - H04W 8/24: Transfer of terminal data - H04W 12/037: of the control plane, e.g. signalling traffic - H04W 12/08: Access security - H04W 12/108: Source integrity - H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII] - H04W 12/04: Key management, e.g. using generic bootstrapping architecture [GBA] - H04W 12/37: Managing security policies for mobile devices or for controlling mobile applications - 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 A network node is configured for use in a wireless communication network. The network node is configured to acquire radio access capability information of a wireless device. The radio access capability information of the wireless device indicates radio access capabilities of the wireless device. The network node is configured to determine if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. If the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to that determination, the network node is configured to re-acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device. ## Claims ### Claim 1 A host computer, comprising: processing circuitry configured to provide user data; and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE), wherein the cellular network comprises a network node configured to perform operations comprising: acquiring radio access capability information of a wireless device, wherein the radio access capability information of the wireless device indicates radio access capabilities of the wireless device; determining if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device; and in response to determining that the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to said determining, re acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device. ### Claim 2 (depends on 1) The host computer of claim 1, wherein the operations further comprise determining whether or not to re acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device, depending respectively on whether or not the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. ### Claim 3 (depends on 1) The host computer of claim 1, wherein the operations further comprise determining whether or not to store the radio access capability information of the wireless device at the network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 4 (depends on 1) The host computer of claim 1, wherein the operations further comprise determining whether or not to forward the radio access capability information of the wireless device from the network node to another network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 5 (depends on 1) The host computer of claim 1, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises, after access stratum security is activated for the wireless device: transmitting to the wireless device a capability enquiry which requests the radio access capability information of the wireless device; and receiving the radio access capability information of the wireless device as a response to the capability enquiry. ### Claim 6 (depends on 1) The host computer of claim 1, wherein re-acquiring the radio access capability information of the wireless device comprises receiving the radio access capability information of the wireless device over a control plane connection after access stratum security is activated for securing the control plane connection. ### Claim 7 (depends on 6) The host computer of claim 6, wherein the control plane connection is a Radio Resource Control, RRC, connection. ### Claim 8 (depends on 1) The host computer of claim 1, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises retrieving the radio access capability information of the wireless device using a Radio Resource Control, RRC, User Equipment, UE, capability transfer procedure after successfully performing an Access stratum security Mode Command, SMC, procedure. ### Claim 9 (depends on 1) The host computer of claim 1, wherein the network node is a New Radio node B, gNB, a Next Generation Evolved Node B, ng-eNB or an Evolved Node B, eNB. ### Claim 10 A non-transitory computer readable medium comprising instructions that, when executed by a processor in a host computer of a communication system, cause the host computer to perform operations comprising: providing user data; and forwarding the user data to a cellular network, via a communication interface, for transmission to a user equipment (UE), wherein the cellular network comprises a network node configured to perform operations comprising: acquiring radio access capability information of a wireless device, wherein the radio access capability information of the wireless device indicates radio access capabilities of the wireless device; determining if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device; and in response to determining that the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to said determining, re acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device. ### Claim 11 (depends on 10) The non-transitory computer readable medium of claim 10, wherein the operations further comprise determining whether or not to re acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device, depending respectively on whether or not the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. ### Claim 12 (depends on 10) The non-transitory computer readable medium of claim 10, wherein the operations performed by the network node further comprise determining whether or not to store the radio access capability information of the wireless device at the network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 13 (depends on 10) The non-transitory computer readable medium of claim 10, wherein the operations performed by the network node further comprise determining whether or not to forward the radio access capability information of the wireless device from the network node to another network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 14 (depends on 10) The non-transitory computer readable medium of claim 10, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises, after access stratum security is activated for the wireless device: transmitting to the wireless device a capability enquiry which requests the radio access capability information of the wireless device; and receiving the radio access capability information of the wireless device as a response to the capability enquiry. ### Claim 15 (depends on 10) The non-transitory computer readable medium of claim 10, wherein re-acquiring the radio access capability information of the wireless device comprises receiving the radio access capability information of the wireless device over a control plane connection after access stratum security is activated for securing the control plane connection. ### Claim 16 (depends on 15) The non-transitory computer readable medium of claim 15, wherein the control plane connection is a Radio Resource Control, RRC, connection. ### Claim 17 (depends on 10) The non-transitory computer readable medium of claim 10, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises retrieving the radio access capability information of the wireless device using a Radio Resource Control, RRC, User Equipment, UE, capability transfer procedure after successfully performing an Access stratum security Mode Command, SMC, procedure. ### Claim 18 (depends on 10) The non-transitory computer readable medium of claim 10, wherein the network node is a New Radio node B, gNB, a Next Generation Evolved Node B, ng-eNB or an Evolved Node B, eNB. ### Claim 19 A method performed by host computer in a communication system, comprising: providing user data; and forwarding the user data to a cellular network, via a communication interface, for transmission to a user equipment (UE), wherein the cellular network comprises a network node configured to perform operations comprising: acquiring radio access capability information of a wireless device, wherein the radio access capability information of the wireless device indicates radio access capabilities of the wireless device; determining if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device; and in response to determining that the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to said determining, re acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device. ### Claim 20 (depends on 19) The method of claim 19, wherein the operations performed by the network node further comprise determining whether or not to re acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device, depending respectively on whether or not the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. ### Claim 21 A system, comprising: a host computer comprising processing circuitry configured to provide user data, and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE); and a network node disposed in the cellular network and configured to perform operations comprising: acquiring radio access capability information of a wireless device, wherein the radio access capability information of the wireless device indicates radio access capabilities of the wireless device; determining if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device; and if in response to determining that the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to said determining, re acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device. ### Claim 22 (depends on 21) The system of claim 21, wherein the operations further comprise determining whether or not to re acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device, depending respectively on whether or not the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. ### Claim 23 (depends on 21) The system of claim 21, wherein the operations further comprise determining whether or not to store the radio access capability information of the wireless device at the network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 24 (depends on 21) The system of claim 21, wherein the operations further comprise determining whether or not to forward the radio access capability information of the wireless device from the network node to another network node, depending respectively on whether the wireless communication network received the radio access capability information of the wireless device after or before access stratum security was activated for the wireless device. ### Claim 25 (depends on 21) The system of claim 21, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises, after access stratum security is activated for the wireless device: transmitting to the wireless device a capability enquiry which requests the radio access capability information of the wireless device; and receiving the radio access capability information of the wireless device as a response to the capability enquiry. ### Claim 26 (depends on 21) The system of claim 21, wherein re-acquiring the radio access capability information of the wireless device comprises receiving the radio access capability information of the wireless device over a control plane connection after access stratum security is activated for securing the control plane connection. ### Claim 27 (depends on 26) The system of claim 26, wherein the control plane connection is a Radio Resource Control, RRC, connection. ### Claim 28 (depends on 21) The system of claim 21, wherein re-acquiring the radio access capability information of the wireless device after access stratum security is activated for the wireless device comprises retrieving the radio access capability information of the wireless device using a Radio Resource Control, RRC, User Equipment, UE, capability transfer procedure after successfully performing an Access stratum security Mode Command, SMC, procedure. ### Claim 29 (depends on 21) The system of claim 21, wherein the network node is a New Radio node B, gNB, a Next Generation Evolved Node B, ng-eNB or an Evolved Node B, eNB.