# US 10,374,911 B2 · Device management in machine to machine network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,911 B2 - Document ID: US10374911B2 - Status: Granted - Kind: B2 - Application number: 14/190,602 - Filed: 2014-02-26 - Published: 2014-08-28 - Granted: 2019-08-06 - Earliest claimed: 2013-02-26 - Assignees: Kt Corporation - Applicants: Kt Corporation - Inventors: Hwi-Jung Ryu; Mi-Kyoung Kang; Yong Kwon; Sung-Ihk Yang; Kwang-Jin Lee; Sung-Kooc Lim; Yu-Jin Huh - Web page: https://patentgrep.com/patent/US10374911B2 ## CPC - H04W 4/38: for collecting sensor information - H04L 43/04: Processing captured monitoring data, e.g. for logfile generation - H04W 4/50: Service provisioning or reconfiguring - 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 present disclosure is related to device management in a machine to machine (M2M) network. Particularly, the present disclosure relates to performing an efficient device management based on correlations between M2M devices in the M2M network. ## Claims ### Claim 1 A method of performing a device management in a machine to machine (M2M) network, the method comprising: collecting M2M data from a plurality of M2M devices; based on the collected M2M data, obtaining one or more correlation values between M2M devices included in a device group; and controlling an operation of at least one M2M device among MINI devices having a relatively greater correlation value than a reference value, wherein the obtaining includes: extracting data samples for each M2M device, through a data sampling of the M2M data; forming data sample pairs for each M2M device pair; and calculating a correlation value using the data sample pairs, per M2M device pair, and wherein the controlling an operation of each of the selected M2M devices includes: determining whether each correlation value satisfies an operation condition; identifying operation information corresponding to a satisfied operation condition; and controlling the identified operation of the selected M2M device, according to the operation information. ### Claim 2 (depends on 1) The method of claim 1, wherein the device group for the correlation calculation is determined based on location information of each M2M device. ### Claim 3 (depends on 1) The method of claim 1, wherein: the data sampling is performed according to a predetermined data set extraction period; and each data sample pairs includes two data samples, wherein a data collection time error of the two data samples is within a maximum time error range. ### Claim 4 (depends on 1) The method of claim 1, further comprising at least one of: (i) determining a possibility of a data comparison per M2M device pair, based on at least one of a data type and a data parsing result; and (ii) performing a data projection per M2M device pair. ### Claim 5 (depends on 1) The method of claim 1, wherein the data comparison is determined based on at least one of a content type and a data format. ### Claim 6 (depends on 1) The method of claim 1, wherein the controlling includes: selecting the at least one of M2M device for operation control; and controlling an operation of each of the selected M2M devices. ### Claim 7 (depends on 6) The method of claim 6, wherein the selecting is performed based on at least one of a device performance and an operation policy. ### Claim 8 (depends on 7) The method of claim 7, wherein the operation policy includes priority information determined for each M2M device. ### Claim 9 (depends on 6) The method of claim 6, wherein the controlling includes: transiting the selected at least one M2M device to a sleep mode. ### Claim 10 (depends on 1) The method of claim 1, wherein at least one of the operation condition and the operation information is determined based on an operation policy of a network operator. ### Claim 11 (depends on 1) The method of claim 1, further comprising: providing the one or more correlation values to an operator management server. ### Claim 12 (depends on 1) The method of claim 1, wherein the collecting, the obtaining, and the controlling are re-performed according to a correlation re-analysis period. ### Claim 13 (depends on 12) The method of claim 12, further comprising: waking up one or more M2M devices in a sleep mode, for a predetermined time period, such that a data collection is performed. ### Claim 14 An apparatus for performing a device management in a machine to machine (M2M) network, the apparatus comprising: a data storage configured to receive M2M data from a plurality of M2M devices and store the received M2M data; a correlation analysis processor configured to obtain correlation values, from the stored M2M data, between M2M devices included in a device group; and an operation control processor configured to control an operation of at least one M2M device among M2M devices having a relatively greater correlation value than a reference value, wherein the correlation analysis processor is configured to: (i) extract data samples for each M2M device, through a data sampling of the M2M data; (ii) form data sample pairs for each M2M device pair; and (iii) calculate a correlation value using the data sample pairs, per M2M device pair, and wherein the operation control processor is configured to: (i) determine whether each correlation value satisfies an operation condition; (ii) identify operation information corresponding to a satisfied operation condition; and (iii) control the operation of the selected M2M device, according to the operation information. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein the device group for the correlation calculation is determined based on location information of each M2M device. ### Claim 16 (depends on 14) The apparatus of claim 14, wherein at least one of the correlation analysis processor and the operation control processor is configured to re-perform according to a correlation re-analysis period.