# US 10,873,916 B2 · Base station power control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,916 B2 - Document ID: US10873916B2 - Status: Granted - Kind: B2 - Application number: 16/231,430 - Filed: 2018-12-22 - Published: 2019-07-04 - Granted: 2020-12-22 - Earliest claimed: 2017-12-29 - Assignees: Ofinno, LLC - Applicants: Kyungmin Park; Esmael Dinan; Hyoungsuk Jeon; Alireza Babaei; Hua Zhou - Inventors: Kyungmin Park; Esmael Dinan; Hyoungsuk Jeon; Alireza Babaei; Hua Zhou - Web page: https://patentgrep.com/patent/US10873916B2 ## CPC - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 76/27: Transitions between radio resource control [RRC] states - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 36/0072: {of resource information of target access point} - H04W 52/146: {Uplink power control} - H04W 52/346: {distributing total power among users or channels} - H04W 52/365: {Power headroom reporting} - H04W 80/02: Data link layer protocols - H04W 88/085: {Access point devices with remote components} - 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 base station central unit transmits to a first base station distributed unit, a first message requesting a first context setup for a wireless device. The base station central unit transmits to a second base station distributed unit, a second message requesting second context setup to add the second base station distributed unit for the wireless device. The second message comprises a second power value for uplink transmission of the wireless device to the second base station distributed unit. The base station central unit receives a response message indicating the second context setup for the wireless device. The base station central unit transmits to the first base station distributed unit, a third message requesting context modification for the wireless device. The third message comprises a first power value, determined based on the second power value, for uplink transmission of the wireless device to the first base station distributed unit. ## Claims ### Claim 1 A method comprising: transmitting, by a base station central unit to a first base station distributed unit, a first message requesting a first context setup for a wireless device, wherein the first message comprises a third power value for uplink transmission of the wireless device; transmitting, by the base station central unit to a second base station distributed unit, a second message requesting second context setup to add the second base station distributed unit for the wireless device, wherein the second message comprises a second power value for uplink transmission of the wireless device to the second base station distributed unit; receiving, by the base station central unit from the second base station distributed unit, a response message indicating the second context setup for the wireless device; and transmitting, by the base station central unit to the first base station distributed unit, a third message requesting context modification for the wireless device, wherein the third message comprises a first power value for uplink transmission of the wireless device to the first base station distributed unit, the first power value determined based on the second power value for uplink transmission of the wireless device to the second base station distributed unit. ### Claim 2 (depends on 1) The method of claim 1, wherein the third power value is a maximum allowed power for uplink transmission of the wireless device. ### Claim 3 (depends on 1) The method of claim 1, wherein the third power value is equal to or larger than a sum of the first power value and the second power value. ### Claim 4 (depends on 1) The method of claim 1, further comprising receiving, by the base station central unit from the wireless device, a measurement report comprising one or more measurement results of at least one cell of the second base station distributed unit, wherein the transmitting the second message is based on the measurement report. ### Claim 5 (depends on 1) The method of claim 1, wherein the second message further comprises an information element indicating a power control mode comprising a mode 1 or a mode 2. ### Claim 6 (depends on 1) The method of claim 1, wherein the second context setup is to establish multiple base station distributed unit connections for the wireless device. ### Claim 7 (depends on 1) The method of claim 1, wherein: the first power value is a maximum allowed power for uplink transmission of the wireless device to the first base station distributed unit; and the second power value is a maximum allowed power for uplink transmission of the wireless device to the second base station distributed unit. ### Claim 8 (depends on 1) The method of claim 1, wherein: the first base station distributed unit employs the first power value to control an uplink transmission power of the wireless device; and the second base station distributed unit employs the second power value to control an uplink transmission power of the wireless device. ### Claim 9 (depends on 1) The method of claim 1, wherein the first base station distributed unit provides, to the wireless device, a master cell group comprising at least one of: a primary cell; or one or more secondary cells. ### Claim 10 (depends on 1) The method of claim 1, wherein the second base station distributed unit provides, to the wireless device, a secondary cell group comprising at least one of: a primary secondary cell; or one or more secondary cells. ### Claim 11 (depends on 1) The method of claim 1, wherein the first message further comprises at least one of: one or more bearer configuration parameters of at least one bearer requested to be setup at the first base station distributed unit for the wireless device; or at least one cell identifier of at least one cell of the first base station distributed unit for the wireless device. ### Claim 12 (depends on 1) The method of claim 1, wherein the second message further comprises at least one of: one or more bearer configuration parameters of at least one bearer requested to be setup at the second base station distributed unit for the wireless device; or at least one cell identifier of at least one cell of the second base station distributed unit for the wireless device. ### Claim 13 (depends on 1) The method of claim 1, further comprising transmitting, by the base station central unit to the wireless device, a radio resource control reconfiguration message comprising at least one of: the first power value; or the second power value. ### Claim 14 (depends on 1) The method of claim 1, wherein the second message further indicates a request to serve the wireless device as a secondary base station distributed unit. ### Claim 15 (depends on 1) The method of claim 1, wherein the second message is a user equipment context setup request message. ### Claim 16 (depends on 1) The method of claim 1, wherein the first message further comprises at least one of: a first power headroom report mode comprising a real mode or a virtual mode; or buffer status report configuration parameters. ### Claim 17 (depends on 1) The method of claim 1, wherein the second message further comprises at least one of: a second power headroom report mode comprising a real mode or a virtual mode; or buffer status report configuration parameters. ### Claim 18 (depends on 1) The method of claim 1, wherein the base station central unit comprises at least one of: a radio resource control layer function; a packet data convergence protocol layer function; or a service data adaptation protocol layer function. ### Claim 19 (depends on 1) The method of claim 1, wherein the first base station distributed unit and the second base station distributed unit comprise at least one of: a physical layer function; a medium access control layer function; or a radio link control layer function.