Method and device for performing early measurement in mobile communication system

{
  "publication_number": "US2026107173A1",
  "country": "US",
  "kind": "A1",
  "title": "Method and device for performing early measurement in mobile communication system",
  "abstract": "The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. In addition, a method performed by a user equipment in a wireless communication system according to various embodiments of the present disclosure may comprise the operations of: receiving a radio resource control (RRC) message including measurement configuration information from a base station; transmitting, to the base station, a first message including user equipment capability information on the basis of the RRC message; receiving, from the base station, an RRC connection release message including idle mode measurement configuration information; identifying whether idle mode measurement interval information is included in the idle mode measurement configuration information on the basis of the RRC connection release message; and when the RRC connection release message does not include the idle mode measurement interval information, deleting the stored measurement information.",
  "claims": [
    "1. A method performed by a user equipment in a wireless communication system, the method comprising: receiving a radio resource control (RRC) message comprising measurement configuration information from a base station; based on the RRC message, transmitting a first message comprising user equipment capability information to the base station; receiving an RRC connection release message comprising idle mode measurement configuration information from the base station; based on the RRC connection release message, identifying whether idle mode measurement interval information is included in the idle mode measurement configuration information; and in case that the RRC connection release message does not include the idle mode measurement interval information, discarding stored measurement information. 2. The method of claim 1, wherein the idle mode measurement configuration information indicates measurement configuration information used in an idle mode or an inactive mode, and wherein the idle mode measurement interval information indicates a period at which measurement is performed in the idle mode or the inactive mode. 3. The method of claim 2, further comprising performing measurement in the idle mode or the inactive mode until a timer based on the idle mode measurement interval information expires or is stopped. 4. The method of claim 2, further comprising: receiving a second message comprising system information from the base station; and in case that a timer based on the idle mode measurement interval information expires or is stopped, identifying, based on the system information, whether to continue performing the measurement. 5. A user equipment in a wireless communication system, the user equipment comprising: at least one transceiver; and a controller coupled with the at least one transceiver, wherein the controller is configured to: receive a radio resource control (RRC) message comprising measurement configuration information from a base station; based on the RRC message, transmit a first message comprising user equipment capability information to the base station; receive an RRC connection release message comprising idle mode measurement configuration information from the base station; based on the RRC connection release message, identify whether idle mode measurement interval information is included in the idle mode measurement configuration information; and in case that the RRC connection release message does not include the idle mode measurement interval information, discard stored measurement information. 6. The user equipment of claim 5, wherein the idle mode measurement configuration information indicates measurement configuration information used in an idle mode or an inactive mode, and wherein the idle mode measurement interval information indicates a period at which measurement is performed in the idle mode or the inactive mode. 7. The user equipment of claim 6, wherein the controller is configured to perform measurement in the idle mode or the inactive mode until a timer based on the idle mode measurement interval information expires or is stopped. 8. The user equipment of claim 6, wherein the controller is configured to: receive a second message comprising system information from the base station; and in case that a timer based on the idle mode measurement interval information expires or is stopped, identify, based on the system information, whether to continue performing the measurement. 9. A method performed by a base station in a wireless communication system, the method comprising: transmitting a radio resource control (RRC) message comprising measurement configuration information to a user equipment; receiving a first message comprising user equipment capability information based on the RRC message from the user equipment; and transmitting an RRC connection release message comprising idle mode measurement configuration information to the user equipment. 10. The method of claim 9, wherein the idle mode measurement configuration information indicates measurement configuration information used in an idle mode or an inactive mode, and wherein, in case that the idle mode measurement configuration information comprises idle mode measurement interval information, the idle mode measurement interval information indicates a period at which the user equipment performs measurement in the idle mode or the inactive mode. 11. The method of claim 10, wherein the idle mode measurement interval information is used by the user equipment to perform measurement in the idle mode or the inactive mode until a timer based on the idle mode measurement interval information expires or is stopped. 12. The method of claim 10, comprising transmitting a second message comprising system information to the user equipment, wherein the system information is used by the user equipment to, in case that a timer based on the idle mode measurement interval information expires or is stopped, identify, based on the system information, whether to continue performing the measurement. 13. A base station in a wireless communication system, the base station comprising: at least one transceiver; and a controller coupled with the at least one transceiver, wherein the controller is configured to: transmit a radio resource control (RRC) message comprising measurement configuration information to a user equipment; receive a first message comprising user equipment capability information based on the RRC message from the user equipment; and transmit an RRC connection release message comprising idle mode measurement configuration information to the user equipment. 14. The base station of claim 13, wherein the idle mode measurement configuration information indicates measurement configuration information used in an idle mode or an inactive mode, wherein, in case that the idle mode measurement configuration information comprises idle mode measurement interval information, the idle mode measurement interval information indicates a period at which the user equipment performs measurement in the idle mode or the inactive mode, and wherein the idle mode measurement interval information is used by the user equipment to perform measurement in the idle mode or the inactive mode until a timer based on the idle mode measurement interval information expires or is stopped. 15. The base station of claim 13, wherein the controller is configured to transmit a second message comprising system information to the user equipment, and wherein the system information is used by the user equipment to, in case that a timer based on the idle mode measurement interval information expires or is stopped, identify, based on the system information, whether to continue performing the measurement."
  ],
  "description_excerpt": "The disclosure relates to a method and device for performing early measurement in a mobile communication system.\n\n5G mobile communication technologies define broad frequency bands to enable high transmission rates and new services, and can be implemented not only in “Sub 6 GHz” bands such as 3.5 GHz, but also in “Above 6 GHz” bands referred to as mmWave including 28 GHz and 39 GHz. In addition, it has been considered to implement 6G mobile communication technologies (referred to as Beyond 5G systems) in terahertz bands (e.g., 95 GHz to 3 THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies.\n\nAt the beginning of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable & Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive MIMO for alleviating radio-wave path loss and increasing radio-wave transmission distances in mmWave, numerology (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BWP (BandWidth Part), new channel coding methods ...",
  "cpc": [
    "H04W 24/10",
    "H04W 76/27"
  ],
  "assignees": [
    "Samsung Electronics Co Ltd"
  ],
  "inventors": [
    "Sangyeob JUNG",
    "Sangbum Kim"
  ],
  "filing_date": "2023-10-05",
  "publication_date": "2026-04-16",
  "priority_date": "2022-10-06",
  "application_number": "US-202319114928-A",
  "cited_by_count": 0
}