# US 12,225,457 B2 · Method of controlling plurality of cells for providing radio resources to plurality of user equipments, and electronic device for performing the method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,457 B2 - Document ID: US12225457B2 - Status: Granted - Kind: B2 - Application number: 17/513,172 - Filed: 2021-10-28 - Published: 2022-05-05 - Granted: 2025-02-11 - Earliest claimed: 2020-11-02 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Minsuk Choi; Kyungrae Kim; Taejeoung Kim; Juhwan Song; Taeseop Lee; Seowoo Jang - Web page: https://patentgrep.com/patent/US12225457B2 ## CPC - H04W 52/0206: {in access points, e.g. base stations} - G06N 3/02: Neural networks - G06N 20/00: Machine learning - H04W 16/08: Load shedding arrangements - H04W 24/02: Arrangements for optimising operational condition - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 52/02: Power saving arrangements - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Disclosed is a method, performed by an electronic device, of controlling a plurality of cells for providing radio resources to a plurality of user equipments (UEs), including: obtaining information about a load of each of a plurality of cells, calculating a total load of the plurality of cells based on the obtained information, changing a state of at least one cell from among the plurality of cells from an active state to an inactive state or from an inactive state to an active state based on the calculated total load, and controlling the plurality of cells so that a plurality of UEs are connected to active cells from among the plurality of cells in response to the change in the state of the at least one cell. ## Claims ### Claim 1 A method, performed by an electronic device, of controlling a plurality of cells for providing radio resources to a plurality of user equipments (UEs), the method comprising: obtaining information about a load of each of the plurality of cells; calculating a total load of the plurality of cells based on the obtained information; changing a state of at least one cell from among the plurality of cells from an active state to an inactive state or from an inactive state to an active state based on the calculated total load and power consumption efficiency of each of the plurality of cells; and controlling the plurality of cells so that the plurality of UEs are connected to active cells from among the plurality of cells in response to the change in the state of the at least one cell, wherein based on a ratio of the total load to a maximum total load being less than a first threshold ratio, a state of a first cell having a lowest power consumption efficiency from among the plurality of cells is set to an inactive state. ### Claim 2 (depends on 1) The method of claim 1, further comprising: determining each of a plurality of ranges a corresponding to the calculated total load set based on the ratio of the total load to the maximum total load of the plurality of cells, wherein the at least one cell is determined based on information indicating whether to activate each of the plurality of cells in the determined plurality of ranges. ### Claim 3 (depends on 2) The method of claim 2, wherein at least one threshold ratio value for distinguishing between the plurality of ranges is set by an artificial intelligence (AI) model. ### Claim 4 (depends on 3) The method of claim 3, wherein the AI model is configured to use, as an input, at least one of the information about the load of each of the plurality of cells, the calculated total load, the maximum total load, power consumption efficiency of each of the plurality of cells, or a network performance indicator of the plurality of cells. ### Claim 5 (depends on 1) The method of claim 1, wherein, if the ratio of the total load to the maximum total load is less than a second threshold ratio less than the first threshold ratio, states of the first cell and a second cell having a second lowest power consumption efficiency from among the plurality of cells are set to an inactive state. ### Claim 6 (depends on 1) The method of claim 1, wherein the information about the load of each of the plurality of cells is based on physical resource block (PRB) usage of each of the plurality of cells. ### Claim 7 (depends on 1) The method of claim 1, wherein the controlling of the plurality of cells comprises: controlling the plurality of cells so that at least one UE having been connected to the at least one cell is preferentially connected to a cell having a lowest power consumption per resource block (RB) from among the active cells based on the state of the at least one cell being changed from an active state to an inactive state. ### Claim 8 (depends on 1) The method of claim 1, wherein the controlling of the plurality of cells comprises: calculating a variance of loads of the active cells based on the state of the at least one cell being changed from an active state to an inactive state; and controlling the plurality of cells so that at least one UE having been connected to the at least one cell is preferentially connected to a cell having a lowest load from among the active cells based on the calculated variance being greater than or equal to a threshold value, or that at least one UE having been connected to the at least one cell is preferentially connected to a cell having a lowest power consumption per resource block (RB) from among the active cells based on the calculated variance being less than the threshold value. ### Claim 9 An electronic device configured to control a plurality of cells to provide radio resources to a plurality of user equipments (UEs), the electronic device comprising: a memory; and at least one processor electrically connected to the memory and the plurality of cells, the processor configured to control the electronic device to: obtain information about a load of each of the plurality of cells; calculate a total load of the plurality of cells based on the obtained information; change a state of at least one cell from among the plurality of cells from an active state to an inactive state or from an inactive state to an active state based on the calculated total load and power consumption efficiency of each of the plurality of cells; in response to a ratio of the total load to a maximum total load being less than a first threshold ratio, set a state of a first cell having a lowest power consumption efficiency from among the plurality of cells to an inactive state; and control the plurality of cells so that the plurality of UEs are connected to active cells from among the plurality of cells in response to the change in the state of the at least one cell. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the at least one processor is further configured to: determine each of a plurality of ranges corresponding to the calculated total load set based on the ratio of the total load to the maximum total load of the plurality of cells, and wherein the at least one cell is determined based on information indicating whether to activate each of the plurality of cells in the determined plurality of ranges. ### Claim 11 (depends on 9) The electronic device of claim 9, wherein the at least one processor is further configured if the ratio of the total load to the maximum total load is less than a second threshold ratio less than the first threshold ratio, to set states of the first cell and a second cell having a second lowest power consumption efficiency from among the plurality of cells to an inactive state.