# US 12,003,985 B2 · Carrier measurements > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,985 B2 - Document ID: US12003985B2 - Status: Granted - Kind: B2 - Application number: 17/294,662 - Filed: 2019-10-22 - Published: 2021-12-30 - Granted: 2024-06-04 - Earliest claimed: 2018-11-29 - Assignees: Nokia Technologies Oy - Applicants: Nokia Technologies Oy - Inventors: Jarkko Koskela; Tero Henttonen; Elena Virtej; Lars Dalsgaard - Web page: https://patentgrep.com/patent/US12003985B2 ## CPC - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 76/15: Setup of multiple wireless link connections - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - 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 There is provided a method at a user equipment, the method comprising: entering a radio resource control, RRC, inactive mode; determining which carriers are to be measured during the RRC inactive mode; performing measurements of the determined carriers during the RRC inactive mode; providing the results of the measurements to a network upon entering an RRC connected mode. ## Claims ### Claim 1 An apparatus, comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to: acquire from a network a configuration for at least one secondary cell; enter a radio resource control, RRC, inactive mode; maintain at least part of the configuration during the inactive mode; determine, based on the configuration, which carriers are to be measured during the RRC inactive mode; perform measurements of the determined carriers during the RRC inactive mode; provide the results of the measurements to the network upon entering an RRC connected mode, wherein only a subset of the carriers indicated in the configuration are to be measured, and wherein the subset includes those carriers that were activated within a predetermined duration before the entering the RRC inactive mode. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the configuration comprises information indicating for at least some of the secondary cells of the configuration whether or not the corresponding carrier is to be measured during the RRC inactive mode, and wherein the determining is based on the information. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the information comprises at least one of the following: an explicit indication for each carrier that is to be measured during the RRC inactive mode and an explicit indication for each carrier that is not to be measured during the RRC inactive mode. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus further to: receive a state transition message from the network, the message comprising information indicating the configuration. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus further to: acquire information of a validity duration indicating how long the determination of which carriers are to be measured during the RRC inactive mode is valid. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the validity duration is indicated separately for each carrier that is to be measured, wherein at least two carriers to be measured have different validity durations. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus further to: acquire information of a validity area indicating a geographical area within which the determination of which carriers to be measured during the RRC inactive mode is valid. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus further to: enter the RRC connected mode and provide the results of the measurements to the network; receive, from the network, an indication of triggering multicarrier connectivity, wherein at least one secondary cell to be utilized in the multicarrier connectivity are determined based on the provided results of the measurements; apply multicarrier connectivity for communication with the network after entering the RRC connected mode, wherein connecting to the at least one secondary cell is based on the indication and the configuration acquired before entering the RRC inactive mode. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the RRC connected mode is with a New Radio, NR, communication network and the apparatus is a user equipment operable at least in the NR communication network. ### Claim 10 A method, the method comprising: acquiring from a network a configuration for at least one secondary cell; entering a radio resource control, RRC, inactive mode; maintaining at least part of the configuration during the inactive mode; determining, based on the configuration, which carriers are to be measured during the RRC inactive mode; performing measurements of the determined carriers during the RRC inactive mode; providing the results of the measurements to the network upon entering an RRC connected mode, wherein only a subset of the carriers indicated in the configuration are to be measured, and wherein the subset includes those carriers that were activated within a predetermined duration before the entering the RRC inactive mode. ### Claim 11 (depends on 10) The method of claim 10, further comprising: receiving a state transition message from the network, the message comprising information indicating the configuration. ### Claim 12 (depends on 10) The method of claim 10, further comprising: entering the RRC connected mode and providing the results of the measurements to the network; receiving, from the network, an indication of triggering multicarrier connectivity, wherein at least one secondary cell to be utilized in the multicarrier connectivity are determined based on the provided results of the measurements; applying multicarrier connectivity for communication with the network after entering the RRC connected mode, wherein connecting to the at least one secondary cell is based on the indication and the configuration acquired before entering the RRC inactive mode. ### Claim 13 An apparatus, comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to: acquire from a network a configuration for at least one secondary cell; enter a radio resource control, RRC, inactive mode; maintain at least part of the configuration during the inactive mode; determine, based on the configuration, which carriers are to be measured during the RRC inactive mode; perform measurements of the determined carriers during the RRC inactive mode; provide the results of the measurements to the network upon entering an RRC connected mode, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus further to: acquire information of a validity duration indicating how long the determination of which carriers are to be measured during the RRC inactive mode is valid, wherein the validity duration is indicated separately for each carrier that is to be measured, wherein at least two carriers to be measured have different validity durations.