# US 12,004,090 B2 · Type 2 power headroom of a primary cell in 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 12,004,090 B2 - Document ID: US12004090B2 - Status: Granted - Kind: B2 - Application number: 16/570,282 - Filed: 2019-09-13 - Published: 2020-01-02 - Granted: 2024-06-04 - Earliest claimed: 2016-05-26 - Assignees: Ofinno, LLC - Applicants: Ofinno, LLC - Inventors: Esmael Hejazi Dinan - Web page: https://patentgrep.com/patent/US12004090B2 ## CPC - H04W 52/365: {Power headroom reporting} - H04W 52/146: {Uplink power control} - H04W 52/325: {Power control of control or pilot channels} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A power headroom report (PHR) is transmitted. The PHR comprises a Type 2 power headroom of a primary cell in response to a licensed assisted access cell with an uplink being configured and activated. ## Claims ### Claim 1 A method comprising: receiving, by a wireless device, at least one radio resource control (RRC) message comprising configuration parameters of a primary cell and at least one licensed assisted access cell with an uplink; receiving a medium access control control element (MAC CE) activation/deactivation (A/D) command indicating activation of the at least one licensed assisted access cell; and transmitting a power headroom report (PHR), wherein the PHR comprises a Type 2 power headroom of the primary cell in response to the at least one licensed assisted access cell with the uplink being configured and activated. ### Claim 2 (depends on 1) The method of claim 1, wherein the PHR further comprises a Type 1 power headroom field for the primary cell. ### Claim 3 (depends on 1) The method of claim 1, wherein the at least one RRC message comprises at least one parameter indicating that an extended PHR is configured. ### Claim 4 (depends on 1) The method of claim 1, wherein the at least one RRC message further comprises a first information element indicating whether simultaneous physical uplink control channel and physical uplink shared channel transmissions are configured for the primary cell. ### Claim 5 (depends on 4) The method of claim 4, wherein the PHR comprises the Type 2 power headroom in further response to the simultaneous physical uplink control channel and physical uplink shared channel transmissions being configured. ### Claim 6 (depends on 1) The method of claim 1, further comprising transmitting channel state information of the at least one licensed assisted access cell via an uplink channel of the primary cell. ### Claim 7 (depends on 1) The method of claim 1, further comprising: determining a Type 2 power headroom level for the Type 2 power headroom based on: a power of a physical uplink control channel; and a power of a physical uplink shared channel; and determining a Type 1 power headroom level for a Type 1 power headroom based on the power of the physical uplink shared channel. ### Claim 8 (depends on 1) The method of claim 1, further comprising obtaining a measurement value by measuring a signal of a pathloss reference, wherein a calculation of a Type 2 power headroom level for the Type 2 power headroom is based on the measurement value. ### Claim 9 (depends on 1) The method of claim 1, wherein the PHR comprises the Type 2 power headroom in further response to simultaneous physical uplink control channel and physical uplink shared channel transmissions being configured for the primary cell. ### Claim 10 (depends on 1) The method of claim 1, wherein the PHR comprises the Type 2 power headroom in further response to a secondary cell comprising a physical uplink control channel secondary cell being configured and activated. ### Claim 11 A base station comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the base station to: transmit, to a wireless device, at least one radio resource control (RRC) message comprising configuration parameters of a primary cell and at least one licensed assisted access cell with an uplink; transmit, to the wireless device, a medium access control control element (MAC CE) activation/deactivation (A/D) command indicating activation of the at least one licensed assisted access cell; and receive, from the wireless device, a power headroom report (PHR), wherein the PHR comprises a Type 2 power headroom of the primary cell in response to the at least one licensed assisted access cell with the uplink being configured and activated. ### Claim 12 (depends on 11) The base station of claim 11, wherein the PHR further comprises a Type 1 power headroom field for the primary cell. ### Claim 13 (depends on 11) The base station of claim 11, wherein the at least one RRC message comprises at least one parameter indicating that an extended PHR is configured. ### Claim 14 (depends on 11) The base station of claim 11, wherein the at least one RRC message further comprises a first information element indicating whether simultaneous physical uplink control channel and physical uplink shared channel transmissions are configured for the primary cell. ### Claim 15 (depends on 14) The base station of claim 14, wherein the PHR comprises the Type 2 power headroom in further response to the simultaneous physical uplink control channel and physical uplink shared channel transmissions being configured. ### Claim 16 (depends on 14) The base station of claim 14, wherein the instructions further cause the base station to receive, from the wireless device, channel state information of the at least one licensed assisted access cell via an uplink channel of the primary cell. ### Claim 17 (depends on 14) The base station of claim 14, wherein: a Type 2 power headroom level for the Type 2 power headroom is based on: a power of a physical uplink control channel; and a power of a physical uplink shared channel; and a Type 1 power headroom level for a Type 1 power headroom is based on the power of the physical uplink shared channel. ### Claim 18 (depends on 14) The base station of claim 14, wherein a calculation of a Type 2 power headroom level for the Type 2 power headroom is based on a measurement value of a signal of a pathloss reference. ### Claim 19 (depends on 11) The base station of claim 11, wherein the PHR comprises the Type 2 power headroom in further response to simultaneous physical uplink control channel and physical uplink shared channel transmissions being configured for the primary cell. ### Claim 20 (depends on 11) The base station of claim 11, wherein the PHR comprises the Type 2 power headroom in further response to a secondary cell comprising a physical uplink control channel secondary cell being configured and activated.