# US 12,010,660 B2 · Improving operation of beam-based wireless communication networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,660 B2 - Document ID: US12010660B2 - Status: Granted - Kind: B2 - Application number: 17/312,584 - Filed: 2018-12-31 - Published: 2021-10-21 - Granted: 2024-06-11 - Earliest claimed: 2018-12-31 - Assignees: Nokia Technologies Oy - Applicants: Nokia Technologies Oy - Inventors: Juha Pekka Karjalainen; Timo Koskela; Sami-Jukka Hakola; Jorma Johannes Kaikkonen - Web page: https://patentgrep.com/patent/US12010660B2 ## CPC - H04W 72/044: based on the type of the allocated resource - H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 36/0088: {Scheduling hand-off measurements} - H04W 48/12: using downlink control channel - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 52/0229: {where the received signal is a wanted signal} - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04W 84/12: WLAN [Wireless Local Area Networks] - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract According to an example aspect of the present invention, there is provided a method comprising transmitting a first configuration of time domain behaviour for monitoring at least one first downlink control channel using at least one first downlink beam of a beamformed transmission, determining that there is a need for changing from the at least one first downlink beam to at least one second downlink beam and transmitting a first command to configure a receiver for monitoring the at least one first downlink control channel associated with the at least one second downlink beam according to a second configuration of time domain behaviour. ## Claims ### Claim 1 A method, comprising: transmitting a first offset corresponding to an OnDuration for monitoring at least one first downlink control channel using at least one first downlink beam of a beamformed transmission; determining that there is a need for changing from the at least one first downlink beam to at least one second downlink beam; and transmitting a first command to configure a receiver for monitoring the at least one first downlink control channel associated with the at least one second downlink beam according to a second offset corresponding to an OnDuration, wherein the first offset corresponding to an OnDuration comprises a first starting time, duration and periodicity for monitoring the at least one first downlink control channel and the second offset corresponding to an OnDuration comprises a second starting time, duration and periodicity for monitoring the at least one first downlink control channel, and wherein the first offset corresponding to an OnDuration is associated with a first TCI (Transmission Configuration Indication) state and the second offset corresponding to an OnDuration is associated with a second TCI state. ### Claim 2 (depends on 1) A method according to claim 1, wherein the second offset corresponding to an OnDuration is an adjustment of the first offset corresponding to an OnDuration. ### Claim 3 (depends on 1) A method according to claim 1, further comprising: transmitting the first offset corresponding to an OnDuration using Radio Resource Control, RRC, signaling; and transmitting the first command comprises using Media Access Control, MAC, signaling or Layer 1, L1, signaling. ### Claim 4 (depends on 1) A method according to claim 1, transmitting a first control message using the at least one first downlink control channel according to the second offset corresponding to an OnDuration. ### Claim 5 (depends on 1) A method according to claim 1, wherein the first offset corresponding to an OnDuration comprises information related to a first Discontinuous Reception, DRX, configuration and the second offset corresponding to an OnDuration comprises information related to a second DRX configuration. ### Claim 6 (depends on 1) A method according to claim 1, wherein the first offset comprises first downlink control channel search space parameters and the second offset comprises second downlink control channel search space parameters. ### Claim 7 (depends on 1) A method according to claim 1, wherein the first and the second offsets are associated with a control resource set. ### Claim 8 (depends on 1) A method according to claim 1, wherein the first and the second offsets behaviour are associated with a downlink reference signal, such as a SS/PBCH block and/or NZP-CSI-RS. ### Claim 9 (depends on 1) A method according to claim 1, further comprising: transmitting a second command for activating the second offset corresponding to an OnDuration for monitoring the at least one first downlink control channel associated with the at least one second downlink beam. ### Claim 10 (depends on 9) A method according to claim 9, wherein the first and the second commands are separate commands or a single command. ### Claim 11 (depends on 1) A method according to claim 1, wherein the first TCI state enables dynamic joint TX beam, search space and DRX configuration indication for a CORESET, the TCI state comprising values corresponding to possible values of a search space configuration for a CORESET and a SlotOffset value associated with DRX-SlotOffset reflecting a value range of active DRX configuration. ### Claim 12 A method, comprising: configuring a receiver for monitoring at least one first downlink control channel associated with at least one first downlink beam of a beamformed transmission according to a first offset corresponding to an OnDuration; receiving a first command for changing from the at least one first downlink beam to at least one second downlink beam; and configuring, in response to receiving the first command, the receiver for monitoring the at least one first downlink control channel associated with the at least one second downlink beam according to a second offset corresponding to an OnDuration, wherein the first offset corresponding to an OnDuration comprises a first starting time, duration and periodicity for monitoring the at least one first downlink control channel and the second offset corresponding to an OnDuration comprises a second starting time, duration and periodicity for monitoring the at least one first downlink control channel, and wherein the first offset corresponding to an OnDuration is associated with a first TCI (Transmission Configuration Indication) state and the second offset corresponding to an OnDuration is associated with a second TCI state. ### Claim 13 (depends on 12) A method according to claim 12, wherein the second offset corresponding to an OnDuration is an adjustment of the first offset corresponding to an OnDuration. ### Claim 14 (depends on 12) A method according to claim 12, further comprising: receiving the first offset corresponding to an OnDuration using RRC signaling; and receiving the first command using MAC signalling or Layer 1, L1, signaling. ### Claim 15 (depends on 12) A method according to claim 12, further comprising: receiving a first control message using the at least one first downlink control channel according to the second offset corresponding to an OnDuration. ### Claim 16 (depends on 12) A method according to claim 12, wherein the first offset corresponding to an OnDuration comprises information related to a first DRX configuration and the second offset corresponding to an OnDuration comprises information related to a second DRX configuration. ### Claim 17 (depends on 12) A method according to claim 12, wherein the first offset comprises first downlink control channel search space parameters and the second comprises second downlink control channel search space parameters. ### Claim 18 (depends on 12) A method according to claim 12, wherein the first and the second offsets are associated with a control resource set. ### Claim 19 (depends on 12) A method according to claim 12, wherein the first and the second offsets are associated with a downlink reference signal, such as a SS/PBCH block and/or NZP-CSI-RS. ### Claim 20 (depends on 12) A method according to claim 12, further comprising: receiving a second command for activating the second offset corresponding to an OnDuration for monitoring the at least one first downlink control channel associated with the at least one second downlink beam. ### Claim 21 (depends on 12) A method according to claim 12, wherein the first and the second commands are separate commands or a single command. ### Claim 22 (depends on 12) A method according to claim 12, wherein the first TCI state enables dynamic joint TX beam, search space and DRX configuration indication for a CORESET, the TCI state comprising values corresponding to possible values of a search space configuration for a CORESET and a SlotOffset value associated with DRX-SlotOffset reflecting a value range of active DRX configuration. ### Claim 23 An apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to perform: configure a receiver for monitoring at least one first downlink control channel associated with at least one first downlink beam of a beamformed transmission according to a first offset corresponding to an OnDuration; receive a first command for changing from the at least one first downlink beam to at least one second downlink beam; and configure, in response to receiving the first command, the receiver for monitoring the at least one first downlink control channel associated with the at least one second downlink beam according to a second offset corresponding to an OnDuration, wherein the first offset corresponding to an OnDuration comprises a first starting time, duration and periodicity for monitoring the at least one first downlink control channel and the second offset corresponding to an OnDuration comprises a second starting time, duration and periodicity for monitoring the at least one first downlink control channel, and wherein the first offset corresponding to an OnDuration is associated with a first TCI (Transmission Configuration Indication) state and the second offset corresponding to an OnDuration is associated with a second TCI state.