# US 12,015,929 B2 · Minimisation of drive test in a telecommunication network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,929 B2 - Document ID: US12015929B2 - Status: Granted - Kind: B2 - Application number: 17/682,211 - Filed: 2022-02-28 - Published: 2022-06-16 - Granted: 2024-06-18 - Earliest claimed: 2019-07-01 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Himke Van Der Velde - Web page: https://patentgrep.com/patent/US12015929B2 ## CPC - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 16/10: Dynamic resource partitioning - H04W 16/18: Network planning tools - H04W 24/02: Arrangements for optimising operational condition - H04W 48/06: based on traffic conditions - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 76/27: Transitions between radio resource control [RRC] states - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A communication method and a system for converging a 5th-Generation (5G) communication system or networks beyond 5G communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for internet of things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, a smart retail, security and safety services. A method of performing minimisation of drive tests (MDT), in a mobile telecommunication network is provided. The method includes providing an MDT measurement relating to a result of an early measurement, wherein the early measurement is a measurement performed in an idle state or an inactive state, and wherein the mobile telecommunication network configures a user equipment (UE) to report to the mobile telecommunication network upon transition to a connected state. ## Claims ### Claim 1 A method performed by a terminal in a wireless communication system, the method comprising: receiving, from a base station, a logged measurement configuration message for minimization of drive test (MDT); identifying whether the logged measurement configuration message includes a field indicating for the terminal to log a measurement on an early measurement related frequency; performing measurement logging based on the identification, in case that the terminal is in a radio resource control (RRC) idle state or an RRC inactive state; and transmitting, to the base station, a message including measurement results based on the measurement logging, after the terminal is transitioned to an RRC connected state, wherein the measurement results include a measurement result for the MDT, in case that the field is absent in the logged measurement configuration message, and wherein the measurement results include a measurement result for the early measurement related frequency, in case that the field is present in the logged measurement configuration message. ### Claim 2 (depends on 1) The method of claim 1, wherein the measurement results further include the measurement result for the MDT, in case that the field is present in the logged measurement configuration message, wherein the logged measurement configuration message further includes information on a logging interval indicating a periodicity for logging the measurement, and wherein the message further includes a plurality of logged measurements for the logging interval and information on locations associated with the plurality of logged measurements. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, a user equipment (UE) information request message for requesting the terminal to provide the measurement results, wherein the message is a UE information response message as a response to the UE information request message. ### Claim 4 (depends on 1) The method of claim 1, wherein information on the early measurement related frequency is provided to the terminal via a system information block (SIB) or an RRC release message. ### Claim 5 (depends on 1) The method of claim 1, wherein the logged measurement configuration message further includes information for prioritizing at least one measurement. ### Claim 6 A method performed by a base station in a wireless communication system, the method comprising: transmitting, to a terminal, a logged measurement configuration message for minimization of drive test (MDT); and receiving, from the terminal, a message including measurement results for the terminal in a radio resource control (RRC) idle state or an RRC inactive state based on the logged measurement configuration message, after an RRC connection between the terminal and the base station, wherein the measurement results include a measurement result for the MDT, in case that a field indicating for the terminal to log a measurement on an early measurement related frequency is absent in the logged measurement configuration message, and wherein the measurement results include a measurement result for the early measurement related frequency, in case that the field is present in the logged measurement configuration message. ### Claim 7 (depends on 6) The method of claim 6, wherein the measurement results further include the measurement result for the MDT, in case that the field is present in the logged measurement configuration message, wherein the logged measurement configuration message further includes information on a logging interval indicating a periodicity for logging the measurement, and wherein the message further includes a plurality of logged measurements for the logging interval and information on locations associated with the plurality of logged measurements. ### Claim 8 (depends on 6) The method of claim 6, further comprising: transmitting, to the terminal, a user equipment (UE) information request message for requesting the terminal to provide the measurement results, wherein the message is a UE information response message as a response to the UE information request message. ### Claim 9 (depends on 6) The method of claim 6, wherein information on the early measurement related frequency is provided to the terminal via a system information block (SIB) or an RRC release message. ### Claim 10 (depends on 6) The method of claim 6, wherein the logged measurement configuration message further includes information for prioritizing at least one measurement. ### Claim 11 A terminal in a wireless communication system, the terminal comprising: a transceiver; and a controller configured to: control the transceiver to receive, from a base station, a logged measurement configuration message for minimization of drive test (MDT), identify whether the logged measurement configuration message includes a field indicating for the terminal to log a measurement on an early measurement related frequency, perform measurement logging based on the identification, in case that the terminal is in a radio resource control (RRC) idle state or an RRC inactive state, and control the transceiver to transmit, to the base station, a message including measurement results based on the measurement logging, after the terminal is transitioned to an RRC connected state, wherein the measurement results include a measurement result for the MDT, in case that the field is absent in the logged measurement configuration message, and wherein the measurement results include a measurement result for the early measurement related frequency, in case that the field is present in the logged measurement configuration message. ### Claim 12 (depends on 11) The terminal of claim 11, wherein the measurement results further include the measurement result for the MDT, in case that the field is present in the logged measurement configuration message, wherein the logged measurement configuration message further includes information on a logging interval indicating a periodicity for logging the measurement, and wherein the message further includes a plurality of logged measurements for the logging interval and information on locations associated with the plurality of logged measurements. ### Claim 13 (depends on 11) The terminal of claim 11, wherein the controller is further configured to control the transceiver to receive, from the base station, a user equipment (UE) information request message for requesting the terminal to provide the measurement results, and wherein the message is a UE information response message as a response to the UE information request message. ### Claim 14 (depends on 11) The terminal of claim 11, wherein information on the early measurement related frequency is provided to the terminal via a system information block (SIB) or an RRC release message. ### Claim 15 (depends on 11) The terminal of claim 11, wherein the logged measurement configuration message further includes information for prioritizing at least one measurement. ### Claim 16 A base station in a wireless communication system, the base station comprising: a transceiver; and a controller configured to: control the transceiver to transmit, to a terminal, a logged measurement configuration message for minimization of drive test (MDT), and control the transceiver to receive, from the terminal, a message including measurement results for the terminal in a radio resource control (RRC) idle state or an RRC inactive state based on the logged measurement configuration message, after an RRC connection between the terminal and the base station, wherein the measurement results include a measurement result for the MDT, in case that a field indicating for the terminal to log a measurement on an early measurement related frequency is absent in the logged measurement configuration message, and wherein the measurement results include a measurement result for the early measurement related frequency, in case that the field is present in the logged measurement configuration message. ### Claim 17 (depends on 16) The base station of claim 16, wherein the measurement results further include the measurement result for the MDT, in case that the field is present in the logged measurement configuration message, wherein the logged measurement configuration message further includes information on a logging interval indicating a periodicity for logging the measurement, and wherein the message further includes a plurality of logged measurements for the logging interval and information on locations associated with the plurality of logged measurements. ### Claim 18 (depends on 16) The base station of claim 16, wherein the controller is further configured to control the transceiver to transmit, to the terminal, a user equipment (UE) information request message for requesting the terminal to provide the measurement results, and wherein the message is a UE information response message as a response to the UE information request message. ### Claim 19 (depends on 16) The base station of claim 16, wherein information on the early measurement related frequency is provided to the terminal via a system information block (SIB) or an RRC release message. ### Claim 20 (depends on 16) The base station of claim 16, wherein the logged measurement configuration message further includes information for prioritizing at least one measurement.