# US 10,873,915 B1 · Dual connectivity (DC) power control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,915 B1 - Document ID: US10873915B1 - Status: Granted - Kind: B1 - Application number: 16/134,858 - Filed: 2018-09-18 - Granted: 2020-12-22 - Earliest claimed: 2018-09-18 - Assignees: Sprint Communications Company L.P. - Applicants: Sprint Communications Company L.P. - Inventors: Justin Sungki Park; Saied Kazeminejad; Durga Prasad Satapathy - Web page: https://patentgrep.com/patent/US10873915B1 ## CPC - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 52/146: {Uplink power control} - H04W 52/24: using SIR [Signal to Interference Ratio] or other wireless path parameters - H04W 52/365: {Power headroom reporting} - H04W 52/241: {taking into account channel quality metrics, e.g. SIR, SNR, CIR or Eb/lo} - H04W 52/245: {taking into account received signal strength} - H04W 88/02: Terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Systems and methods are provided for dynamic power allocation of a first maximum uplink power and a second maximum uplink power, wherein the first maximum uplink power is used by a first transmitter to communicate with a first access point and the second maximum uplink power is used by a second transmitter to communicate with a second access point (dual connectivity). Network parameters are determined based on characteristics and/or qualities of the downlink and/or uplink signals of a wireless communication session. In response to the determined network parameters, the WCD may be instructed to increase a first maximum uplink power and decrease a second maximum uplink power in order to establish or maintain dual connectivity without exceeding the device's maximum total uplink power. ## Claims ### Claim 1 A system for dynamically allocating maximum total uplink power in a wireless communication device (WCD), the system comprising: a first access point, the first access point configured to transmit a first wireless downlink signal to the WCD; a second access point, the second access point configured to transmit a second wireless downlink signal to the WCD; and a processor, the processor configured to perform operations comprising: determine at least one network parameter for a wireless communication session between the WCD and each of the first access point and the second access point, the at least one network parameter comprising a realized uplink transmission data rate, a realized downlink transmission data rate, an observed signal to interference plus noise ratio, a received strength receive power, a pathloss, a connection throughput, one or more capabilities of the WCD, or a location of the WCD; determine a power headroom used by a first transmitter of the WCD to transmit a first wireless uplink signal to the first access point; and in response to the determined at least one network parameter, instruct the WCD to reduce a first maximum uplink power used by the first transmitter of the WCD to transmit the first wireless uplink signal to the first access point by a proportion of the power headroom and at least partially proportionately increase a second maximum uplink power used by a second transmitter of the WCD to transmit a second wireless uplink signal to the second access point by at least a portion of the power headroom to establish and/or maintain dual connectivity with the first and second access points. ### Claim 2 (depends on 1) The system of claim 1, wherein the first access point and the second access point are co-located at a common site. ### Claim 3 (depends on 1) The system of claim 1, wherein the first access point is located at a first site and the second access point is located at a second site. ### Claim 4 (depends on 1) The system of claim 1, wherein the first access point communicates with the WCD using an eNodeB. ### Claim 5 (depends on 1) The system of claim 1, wherein the first access point communicates with the WCD using a gNodeB. ### Claim 6 (depends on 1) The system of claim 1, wherein the first access point communicates with the WCD using a first protocol and second access point communicates with the WCD using a second protocol. ### Claim 7 (depends on 1) The system of claim 1, wherein each of the first maximum uplink power and the second maximum uplink power is between 15 dBm and 29 dBm. ### Claim 8 (depends on 1) The system of claim 1, wherein the sum of the first maximum uplink power and the second maximum uplink power is 29 dBm. ### Claim 9 (depends on 1) The system of claim 1, wherein the first maximum uplink power does not equal the second maximum uplink power. ### Claim 10 A method for dynamic power allocation in a wireless communications device (WCD), the method comprising: receiving an indication that a first wireless downlink signal has been received by the WCD from a first access point; receiving an indication that a second wireless downlink signal has been received by the WCD from a second access point; determine at least one network parameter for a wireless communication session between the WCD and each of the first access point and the second access point, the at least one network parameter comprising a realized uplink transmission data rate, a realized downlink transmission data rate, an observed signal to interference plus noise ratio, a received strength receive power, a pathloss, a connection throughput, one or more capabilities of the WCD, or a location of the WCD; determine a power headroom used by a first transmitter of the WCD to transmit a first wireless uplink signal to the first access point; and instruct the WCD to reduced, in response to the determined at least one network parameter, a first maximum uplink power by a proportion of the power headroom and at least partially proportionately increase a second maximum uplink power, the first maximum uplink power being the maximum available power to be transmitted by a first transmitter of the WCD and the second maximum uplink power being the maximum available power to be transmitted by a second transmitter of the WCD to establish and/or maintain dual connectivity with the first and second access points. ### Claim 11 (depends on 10) The method of claim 10, wherein the first transmitter transmits a first uplink signal using a first communication protocol and the second transmitter transmits a second uplink signal using a second communication protocol, the first communication protocol being different than the second communication protocol. ### Claim 12 (depends on 10) The method of claim 10, wherein the first access point is located at a first base station and the second access point is located at a second base station. ### Claim 13 (depends on 10) The method of claim 10, wherein the first access point is co-located at the same site as the second access point. ### Claim 14 (depends on 10) The method of claim 10, wherein the sum of the first maximum uplink power and the second maximum uplink power does not exceed a WCD-native maximum total uplink power. ### Claim 15 A non-transitory computer storage media storing computer-usable instructions that, when used by one or more processors, cause the one or more processors to: receive an indication that a first wireless downlink signal has been received by a wireless communications device (WCD) from a first access point; receive an indication that a second wireless downlink signal has been received by the WCD from a second access point determine at least one network parameter for a wireless communication session between the WCD and each of the first access point and the second access point, the at least one network parameter comprising a realized uplink transmission data rate, a realized downlink transmission data rate, an observed signal to interference plus noise ratio, a received strength receive power, a pathloss, a connection throughput, one or more capabilities of the WCD, or a location of the WCD; determine a power headroom used by a first transmitter of the WCD to transmit a first wireless uplink signal to the first access point; and instruct the WCD to reduce, in response to the determined at least one network parameter, a first maximum uplink power by a proportion of the power headroom and at least partially proportionately increase a second maximum uplink power, the first maximum uplink power being the maximum available power to be transmitted by a first transmitter of the WCD and the second maximum uplink power being the maximum available power to be transmitted by a second transmitter of the WCD to establish and/or maintain dual connectivity with the first and second access points. ### Claim 16 (depends on 15) The non-transitory computer storage media of claim 15, wherein the first maximum uplink power is used by a first power amplifier of the WCD to communicate with a first access point and the second maximum uplink power is used by a second power amplifier of the WCD to communicate with a second access point. ### Claim 17 (depends on 16) The non-transitory computer storage media of claim 16, wherein the WCD communicates with the first access point using a first wireless communication protocol and the WCD communicates with the second access point using a second wireless communication protocol.