# US 11,445,439 B1 · Managing power over ethernet through a switch > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,439 B1 - Document ID: US11445439B1 - Status: Granted - Kind: B1 - Application number: 17/189,230 - Filed: 2021-03-01 - Published: 2022-09-01 - Granted: 2022-09-13 - Earliest claimed: 2021-03-01 - Assignees: Charter Communications Operating, LLC - Applicants: Charter Communications Operating, LLC - Inventors: Volkan Sevindik - Web page: https://patentgrep.com/patent/US11445439B1 ## CPC - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04L 12/10: Current supply arrangements - H04L 12/2801: {Broadband local area networks} - H04L 12/40045: {Details regarding the feeding of energy to the node from the bus} - 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 The embodiments disclosed herein provide managing power over Ethernet through a switch. In particular, the embodiments provide a mechanism for a Power Over Ethernet (POE) switch device to request change of operation of Citizens Broadband Radio Service Devices (CBSDs) to dynamically adjust power requirements of the CBSDs. The POE switch device is configured to determine a power transfer rate is outside a predetermined range, and send a request to an identified CBSD of a plurality of CBSDs to operate under a different power mode to alter a power requirement of the identified CBSD. In this way, the POE switch device dynamically manages operation of the plurality of CBSDs and distributes power among the plurality of CBSDs based on power requirements, loads, and/or Spectrum Access Systems (SAS) limitations of the plurality of CBSDs. Such a configuration increases the number and/or type of CBSDs that can be deployed in a particular region. ## Claims ### Claim 1 An electronic device, comprising: an upstream Power Over Ethernet (POE) port configured to receive power from a cable modem termination system (CMTS); a plurality of downstream POE ports configured to transfer power to a corresponding plurality of Citizens Broadband Radio Service Devices (CBSDs); a memory; and a processor device coupled to the memory and configured to: transfer power from the CMTS to the plurality of CBSDs via the corresponding plurality of downstream POE ports; determine a combined power transfer rate from the CMTS to the plurality of CBSDs is outside of a predetermined range; based on the combined power transfer rate, send a request via one of the plurality of downstream POE ports to a first CBSD of the plurality of CBSDs to operate under a different power mode than a current power mode to alter a power requirement of the first CBSD. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to receive, from the first CBSD, confirmation that the first CBSD is operating under the different power mode. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the confirmation from the first CBSD indicates that a Spectrum Access System (SAS) granted a request from the first CBSD to operate under the different power mode. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to receive, from the first CBSD, a denial such that the first CBSD continues operating under the current power mode. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the processor device is further configured to, based on the denial from the first CBSD, request via one of the plurality of downstream POE ports that a second CBSD of the plurality of CBSDs operate under a different power mode than a current power mode to alter a power requirement of the second CBSD. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the different power mode is at least one of Category A or Category B; wherein Category A is a lower power mode permitting maximum Effective Isotropic Radiated Power (EIRP) of about 1 Watt; and wherein Category B is a higher power mode permitting maximum EIRP of about 50 Watts. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is below a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being below the predetermined threshold, requesting the first CBSD changes operation from a lower power mode to a higher power mode. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is above a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being above a predetermined threshold, requesting the first CBSD changes operation from a higher power mode to a lower power mode. ### Claim 9 (depends on 1) The electronic device of claim 1, further comprising determining, by the electronic device, a current load of the first CBSD is low among the plurality of CBSDs; wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is above a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being above a predetermined threshold and the current load of the first CBSD, requesting the first CBSD changes operation from a higher power mode to a lower power mode. ### Claim 10 (depends on 1) The electronic device of claim 1, further comprising determining, by the electronic device, a current load of the first CBSD is low among the plurality of CBSDs; wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is above a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being above a predetermined threshold and the current load of the first CBSD, requesting the first CBSD changes operation to an off power mode for a predetermined time period. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to receive from the first CBSD at least one of media access control (MAC) address, power mode type, average load during a predetermined time period, high load time during a predetermined time period, power-related issue, or a power limit range. ### Claim 12 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to determine to transmit the request to the first CBSD based on at least one of current power requirements of each of the plurality of CBSDs, historical power requirements of each of the plurality of CBSDs, historical load of each of the plurality of CBSDs, or current load of each of the plurality of CBSDs. ### Claim 13 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to manage power transfer among the plurality of CBSDs to maximize the combined power transfer rate to the plurality of CBSDs under a predetermined power transfer rate limit. ### Claim 14 (depends on 1) The electronic device of claim 1, wherein the processor device is further configured to manage power transfer among the plurality of CBSDs to maximize load across the plurality of CBSDs. ### Claim 15 (depends on 1) The electronic device of claim 1, wherein the electronic device is in electronic communication with the first CBSD via a first cable modem (CM). ### Claim 16 A method, comprising: directing, by an electronic device, power transfer from a cable modem termination system (CMTS) via an upstream Power Over Ethernet (POE) port to a plurality of Citizens Broadband Radio Service Devices (CBSDs) via a corresponding plurality of downstream POE ports; determining, by the electronic device, a combined power transfer rate from the CMTS to the plurality of CBSDs outside of a predetermined range; based on the combined power transfer rate, sending a request by the electronic device via one of the plurality of downstream POE ports to a first CBSD of the plurality of CBSDs to operate under a different power mode than a current power mode to alter a power requirement of the first CBSD. ### Claim 17 (depends on 16) The method of claim 16, wherein the different power mode is at least one of Category A or Category B; wherein Category A is a lower power mode permitting maximum Effective Isotropic Radiated Power (EIRP) of about 1 Watt; and wherein Category B is a higher power mode permitting maximum EIRP of about 50 Watts. ### Claim 18 (depends on 16) The method of claim 16, wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is below a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being below the predetermined threshold, requesting the first CBSD changes operation from a lower power mode to a higher power mode. ### Claim 19 (depends on 16) The method of claim 16, wherein determining the combined power transfer rate is outside of a predetermined range comprises determining the combined power transfer rate is above a predetermined threshold; wherein requesting the first CBSD operates under the different power mode comprises based on the combined power transfer rate being above a predetermined threshold, requesting the first CBSD changes operation from a higher power mode to a lower power mode. ### Claim 20 (depends on 16) The method of claim 16, further comprising receiving, by the electronic device, from the first CBSD at least one of media access control (MAC) address, power mode type, an average load during a predetermined time period, a high load time during a predetermined time period, a power-related issue, or a power limit range.