# US 11,909,456 B2 · Supplemental voltage controller for radio frequency (RF) antennas

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,909,456 B2
- Document ID: US11909456B2
- Status: Granted
- Kind: B2
- Application number: 17/393,242
- Filed: 2021-08-03
- Published: 2021-12-09
- Granted: 2024-02-20
- Earliest claimed: 2018-02-23
- Assignees: T-Mobile USA, Inc.
- Applicants: T-Mobile USA, Inc.
- Inventors: Steve Fischer
- Web page: https://patentgrep.com/patent/US11909456B2

## CPC

- H04B 17/102: {Power radiated at antenna}
- G05B 13/048: {using a predictor}
- H02J 9/061: {for DC powered loads}
- H02J 13/1323: {using optical fibres}
- H02J 13/1333: {by means of mobile telephony}
- H02J 13/1335: {involving a local wireless network, e.g. Wi-Fi®, ZigBee® or Bluetooth®}
- H04B 17/104: {of other parameters, e.g. DC offset, delay or propagation times}
- H04B 17/391: Modelling the propagation channel
- H04W 24/04: Arrangements for maintaining operational condition
- H04W 52/143: {Downlink power control}
- H04W 52/44: in connection with interruption of transmission
- H04W 88/08: Access point devices
- Y02B 90/20: Smart grids as enabling technology in buildings sector (smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00)
- Y04S 20/12: Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
- H04B: TRANSMISSION
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

This disclosure describes techniques that enable a supplemental voltage to be delivered to a Remote Radio Unit (RRU) to compensate for a voltage loss that occurs between a primary Direct Current (DC) power source and the RRU. A supplemental voltage controller is described that captures current environmental metadata associated with an operation of the RRU and calculates an RRU voltage at the RRU. In doing so, the supplemental voltage controller may generate a supplemental voltage control signal that supplements the RRU with a supplemental DC voltage.

## Claims

### Claim 1

A system comprising:
one or more processors;
memory coupled to the one or more processors, the memory including one or more modules that are executable by the one or more processors to:
determine, via one or more sensors, a primary Direct Current (DC) voltage that is output from a primary DC power source;
capture current environmental metadata that impacts an operation of a Remote Radio Unit (RRU), the current environmental metadata including one or more Quality of Service (QoS) parameters associated with data packet loss, data latency, jitter, echo, downlink throughput, or uplink throughput that are related to the RRU;
calculate, at the RRU, an RRU voltage, based at least in part on the primary DC voltage; and
in response to the RRU voltage being less than a predetermined voltage threshold, generate a supplemental voltage control signal for delivery to a supplemental DC power source, based at least in part on the current environmental metadata that includes one or more QoS parameters associated with data packet loss, data latency, jitter, echo, downlink throughput, or uplink throughput that are related to the RRU.

### Claim 2 (depends on 1)

The system of claim 1, wherein the primary DC power source is coupled to the RRU via electrically conductive cables, and wherein the one or more modules are further executable by the one or more processors to:
retrieve, from a data store, empirical data associated with the electrically conductive cables, and
wherein to calculate the RRU voltage is further based at least in part on the empirical data.

### Claim 3 (depends on 1)

The system of claim 1, wherein the one or more modules are further executable by the one or more processors to:
calculate a supplemental DC voltage based at least in part on the primary DC voltage and the RRU voltage, and
wherein the supplemental voltage control signal includes instructions that cause delivery of the supplemental DC voltage to the RRU.

### Claim 4 (depends on 1)

The system of claim 1, wherein the current environmental metadata further includes a current meteorological event.

### Claim 5 (depends on 1)

The system of claim 1, wherein the one or more modules are further executable by the one or more processors to:
capture the current environmental metadata from at least one of the primary DC power source, the supplemental DC power source, or the RRU.

### Claim 6 (depends on 1)

The system of claim 1, wherein the one or more modules are further executable by the one or more processors to:
generate an analysis model associated with power transmissions received at the RRU; and
calculate a supplemental DC voltage for delivery to the RRU, based at least in part on the analysis model.

### Claim 7 (depends on 6)

The system of claim 6, wherein the one or more modules are further executable by the one or more processors to:
retrieve, from a data store, historical power transmission data and corresponding historical environmental metadata, and
wherein to generate the analysis model is based at least in part on the historical power transmission data and the corresponding historical environmental metadata.

### Claim 8 (depends on 6)

The system of claim 6, wherein to calculate the supplemental DC voltage based at least in part on the analysis model comprises correlating the current environmental metadata with data-points of the analysis model.

### Claim 9 (depends on 1)

The system of claim 1, the one or more modules are further executable by the one or more processors to:
monitor, via the one or more sensors, the primary DC voltage over a predetermined time interval; and
in response to determining the primary DC voltage is less than a predetermined minimum voltage threshold, generate an additional supplemental voltage control signal for delivery to the supplemental DC power source to cause the supplemental DC power source to cease delivery of a supplemental DC voltage to the RRU.

### Claim 10 (depends on 1)

The system of claim 1, wherein the primary DC power source and the supplemental DC power source are different.

### Claim 11

A computer-implemented method, comprising:
determining a primary DC voltage that is output from a primary DC power source;
capturing current environmental metadata associated with an operation of an RRU;
calculating, at the RRU, an RRU voltage, based at least in part on the primary DC voltage from the primary DC power source and the current environmental metadata, the current environmental metadata including one or more Quality of Service (QoS) parameters associated with data packet loss, data latency, jitter, echo, downlink throughput, or uplink throughput that are related to the RRU;
determining that the RRU voltage is less than a predetermined voltage threshold; and
generating a supplemental voltage control signal for transmission to a supplemental DC power source, based at least the RRU voltage, the supplemental voltage control signal to include instructions that cause delivery of a supplemental DC voltage to the RRU.

### Claim 12 (depends on 11)

The computer-implemented method of claim 11, further comprising:
retrieving, from a data store, empirical data associated with electronically conductive cables that couple the primary DC power source to the RRU, and
wherein, calculating the RRU voltage is further based at least in part on the empirical data.

### Claim 13 (depends on 11)

The computer-implemented method of claim 11, further comprising:
capturing the current environmental metadata from at least one of a baseband unit associated with the RRU, or RF antennas associated with the RRU.

### Claim 14 (depends on 11)

The computer-implemented method of claim 11, further comprising:
generating an analysis model associated with power transmissions received at the RRU, based at least in part on historical power transmission data; and
calculating the supplemental DC voltage, based at least in part in a correlation of the RRU voltage and data-points of the analysis model.

### Claim 15 (depends on 11)

The computer-implemented method of claim 11, further comprising:
monitoring, the RRU voltage over a predetermined time interval; and
in response to determining that the RRU voltage is less than a minimum predetermined minimum voltage threshold, generate an additional supplemental voltage control signal for delivery to the supplemental DC power source to cause the supplemental DC power source to cease delivery of the supplemental DC voltage to the RRU.

### Claim 16

One or more non-transitory computer-readable media storing computer-executable instructions that, when executed on one or more processors, cause the one or more processors to perform acts comprising:
determining a primary DC voltage that is output from a primary DC power source;
capturing current environmental metadata associated with an operation of an RRU, the current environmental metadata including one or more Quality of Service (QoS) parameters associated with data packet loss, data latency, jitter, echo, downlink throughput, or uplink throughput that are related to the RRU;
determining an RRU voltage received at the RRU, based at least in part on the current environmental metadata that includes the one or more QoS parameters associated with data packet loss, data latency, jitter, echo, downlink throughput, or uplink throughput that are related to the RRU;
in response to the RRU voltage being less than a predetermined voltage threshold, calculating a supplemental DC voltage; and
generating a supplemental voltage control signal for delivery to a supplemental DC power source, based at least in part on the supplemental DC voltage.

### Claim 17 (depends on 16)

The one or more non-transitory computer-readable media of claim 16, wherein the supplemental voltage control signal causes the supplemental DC power source to deliver the supplemental DC voltage to the RRU.

### Claim 18 (depends on 16)

The one or more non-transitory computer-readable media of claim 16, further storing instructions to perform acts comprising:
retrieving, from a data store, empirical data associated with electrically conductive cables that couple the primary DC power source and the RRU, and
wherein, calculating the supplemental DC voltage is further based at least in part on the empirical data.

### Claim 19 (depends on 16)

The one or more non-transitory computer-readable media of claim 16, further storing instructions to perform acts comprising:
calculating a supplemental voltage loss that occurs across electrically conductive cables that coupled the supplemental DC power source to the RRU, and
wherein, the calculating the supplemental DC voltage is further based at least in part on the supplemental voltage loss.

### Claim 20 (depends on 16)

The one or more non-transitory computer-readable media of claim 16, wherein the current environmental metadata further includes a current meteorological event.