WO2012047005A2 - Terminal et procédé de gestion d'informations de cellule dans un terminal - Google Patents

Terminal et procédé de gestion d'informations de cellule dans un terminal Download PDF

Info

Publication number
WO2012047005A2
WO2012047005A2 PCT/KR2011/007346 KR2011007346W WO2012047005A2 WO 2012047005 A2 WO2012047005 A2 WO 2012047005A2 KR 2011007346 W KR2011007346 W KR 2011007346W WO 2012047005 A2 WO2012047005 A2 WO 2012047005A2
Authority
WO
WIPO (PCT)
Prior art keywords
cell information
information
terminal
base station
cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2011/007346
Other languages
English (en)
Korean (ko)
Other versions
WO2012047005A3 (fr
Inventor
김상범
김성훈
정경인
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020100108965A external-priority patent/KR101746588B1/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to US13/824,596 priority Critical patent/US9031554B2/en
Publication of WO2012047005A2 publication Critical patent/WO2012047005A2/fr
Publication of WO2012047005A3 publication Critical patent/WO2012047005A3/fr
Anticipated expiration legal-status Critical
Priority to US14/671,059 priority patent/US9526025B2/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Definitions

  • the present invention relates to a terminal and a method for managing cell information in the terminal.
  • the present invention relates to a terminal and a method for managing cell information of a neighboring base station for reporting a Minimization of Drive Test (MDT) measurement in the terminal.
  • MDT Minimization of Drive Test
  • LTE-A Long Term Evolution-Advanced
  • a base station or a base station control station should collect radio environment information on its cell coverage, which is called a drive test.
  • Conventional drive tests have often been cumbersome in that measurement equipment is loaded on a vehicle and repeated measurement tasks are performed for a long time. The measured result is used to set system parameters of each base station or base station control station through an analysis process. Drive testing like this increases wireless network optimization and operating costs, and can be time consuming.
  • the terminal measures cell information and additional information about a base station located nearby. Periodically or when a specific event occurs, the terminal immediately transmits the measured cell information of the neighboring base station to the base station or stores the cell information of the neighboring base station and then delivers it to the base station after a predetermined time. In this case, the operation of transmitting the cell information and other additional information measured by the terminal to the base station may be referred to as MDT measurement information report.
  • MDT measurement information report When the terminal can communicate with the base station, the terminal immediately transmits the cell information measurement result of the neighboring base station to the base station. Or, if it is not possible to immediately report, the terminal records this, and when communication is possible later reports the recorded MDT measurement information to the base station. The base station then uses the MDT measurement information received from the terminal for cell area optimization.
  • the storage space of the terminal is limited, the amount of cell information of the neighboring base station that can be stored is limited. Accordingly, an error may occur when the base station optimizes the cell area using the cell information received from the terminal. Accordingly, there is a need for a method of efficiently recording cell information for MDT in a terminal.
  • the present invention proposes a terminal and a method for efficiently recording neighbor cell measurement information in the terminal.
  • the cell information management terminal includes a transceiver for receiving cell information transmitted from at least one neighboring base station, and for identifying a current position of the terminal among cell information received through the transceiver.
  • MDT Minimization of Drive Test
  • the cell information management method comprises the steps of receiving cell information of at least one neighboring base station, and location prediction information together with at least one cell information as position information among the received cell information. And determining whether the location prediction information is determined, and recording the at least one cell information determined as the location prediction information as a sample of a Minimization of Drive Test (MDT) measurement for reporting a wireless environment. do.
  • MDT Minimization of Drive Test
  • the terminal can efficiently store cell information for the MDT measurement report. Also, even if the terminal does not know the location information on the current location, the terminal can efficiently check and store cell information about the neighboring base station.
  • FIG. 1 is a diagram illustrating a method of measuring cell information in a mobile communication system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a mobile communication system for identifying a location of a terminal according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a cell information storing method in a terminal according to a first embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a cell information storage method measured in a terminal according to a second embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a cell information storage method measured in a terminal according to a third embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating a cell information storage method measured in a terminal according to a fourth embodiment of the present invention.
  • the present invention relates to a method for managing cell information of a neighbor base station in a Minimization of Drive Test (MDT) measurement report of a 3GPP system. More specifically, the present invention proposes a method for efficiently recording cell information of a neighbor base station according to whether a terminal records RF fingerprint information in a standby mode.
  • MDT Minimization of Drive Test
  • a basic MDT measurement sample reporting operation is classified according to the RRC state (UE Radio Resource Control state) of the terminal as shown in Table 1 below.
  • RRC state UE Radio Resource Control state
  • a state in which a terminal is not communicating with a base station is called an idle mode
  • a state in which a terminal is communicating with a base station is called a connected mode.
  • the cell information measured by the terminal is transmitted to the base station by RRC signaling (Radio Resource Control signaling).
  • RRC signaling Radio Resource Control signaling
  • the terminal may not perform the connected mode for transmitting the corresponding cell information to the base station. Therefore, the terminal only records the measured cell information until it changes to the connection mode with the base station and delays the transmission.
  • FIG. 1 is a diagram illustrating a method for measuring cell information in a mobile communication system according to an embodiment of the present invention.
  • FIG. 1 is a flowchart illustrating a method of transmitting and receiving an MDT measurement sample in a mobile communication system including a terminal and a base station.
  • a user equipment (UE) 100 receives channel measurement configuration information (MDT measurement configuration), which is information required for configuring an MDT, from a base station (eNB) 105 in step 110. do.
  • the channel measurement configuration information may include absolute timing reference information, sampling cycle, measurement duration, and the like.
  • the absolute time reference information is used for synchronization between the base station 105 and the terminal 100.
  • the sampling cycle is used for periodic downlink pilot signal measurement, and cell information for the MDT is collected and recorded for each provided sampling cycle.
  • the measurement cycle is the total time the MDT is performed. When the measurement cycle is completed, the terminal 100 stops performing the MDT.
  • the terminal 100 releases the connection with the base station 105 in step 115 and performs MDT.
  • the terminal 100 obtains cell information about the neighbor base station as the first MDT measurement sample.
  • the terminal 100 performs an MDT measurement according to a sampling cycle to obtain a second MDT measurement sample.
  • the terminal 100 stores the MDT measurement sample measured in step 130.
  • the terminal 100 performs the connected mode with the base station 105 in step 135.
  • the terminal 100 notifies the base station 105 of whether to record the MDT measurement sample.
  • the base station 105 may request the MDT measurement report from the terminal according to the situation.
  • the terminal 100 When the MDT measurement report request is received from the base station 105, the terminal 100 reports the MDT measurement sample recorded so far to the base station 105. The terminal 100 deletes the recorded MDT measurement sample. On the other hand, if there is no MDT measurement report request from the base station 105, the terminal 100 maintains the MDT measurement sample recorded continuously. In more detail, the terminal 100 performs a standby mode in which the terminal 100 is disconnected from the base station 105 in step 145. If the time indicated by the MDT measurement cycle is not completed, the terminal 100 continuously performs the MDT operation of collecting the MDT measurement sample in step 150. At this time, the time that the connection mode is performed in the MDT measurement period may or may not be considered.
  • step 155 the terminal 100 stops performing the MDT.
  • step 160 the terminal 100 performs the connected mode with the base station 105. In this case, the terminal 100 notifies the base station that there is an MDT measurement sample recorded again in step 165.
  • the terminal 100 reports the recorded MDT measurement sample to the base station 105.
  • the terminal 100 records the MDT measurement sample according to the measurement period in the standby mode.
  • the terminal 100 performs downlink pilot signal measurement in a connected mode or a standby mode according to a measurement period.
  • the terminal 100 repeatedly measures and collects cell information, which is information necessary for optimizing a service area, according to a measurement period.
  • the measurement period value for the MDT measurement is called an MDT measurement period, and is provided to the terminal through channel measurement configuration information from the base station 105.
  • the MDT measurement sample recorded for the optimization of the service area includes the following cell information.
  • RSRP Reference Signal Received Quality
  • RSRQ Reference Signal Received Quality
  • PCI Physical cell ID
  • carrier freq ID RAT type information
  • ie RSRP signal strength
  • ie RSRQ signal quality
  • the MDT measurement sample basically includes global cell ID information of the serving base station to inform which base station the corresponding cell information is collected.
  • the global cell ID uniquely represents a single base station.
  • the information about the state of the radio channel is expressed through a specific measurement.
  • the radio channel state of the serving base station may be measured by RSRP and RSRQ in EUTRA, Received Signal Code power (RSCP) and energy-to-noise ratio (Ec / No) in UTRAN, and Rxlev in GERAN.
  • RSRP and RSRQ in EUTRA
  • RSCP Received Signal Code power
  • Ec / No energy-to-noise ratio
  • GERAN Rxlev
  • the EUTRA LTE system is described as a basis, but can be applied to other various systems.
  • MDT functionality will be applied to LTE and Universal Mobile Telecommunications System (UMTS).
  • the MDT measurement sample includes PCI (Physical cell ID), signal strength (i.e. RSRP) and signal quality (i.e. RSRQ) measurement information for Intra-freq / inter-freq / inter-RAT neighbor base stations.
  • the MDT measurement sample may additionally include Carrier freq ID and RAT type information for inter-freq / inter-RAT neighbor base stations.
  • how many Intra-freq / inter-freq / inter-RAT neighbor base stations are included in the MDT measurement sample may be determined by the following methods.
  • location information is an important factor. Therefore, when the terminal 100 does not obtain GPS (Global Positioning System) -based location information, it measures the set of signal strengths received from neighboring base stations and informs the serving base station.
  • GPS Global Positioning System
  • the set of signal strengths received from neighboring base stations is called an RF fingerprint.
  • the base station 105 which has received the RF fingerprint, knows in advance the location information of the neighbor base stations.
  • the base station 105 may estimate the distance between the adjacent base stations and the terminal 100 by applying signal strength values of the adjacent base stations to the signal path attenuation model through the RF fingerprint.
  • the base station 105 may find the approximate location of the terminal 100 by applying the location information of the neighboring base stations and the predicted distance values between the neighboring base stations and the terminal 100 to a technique such as triangular distance surveying.
  • FIG. 2 is a diagram illustrating a mobile communication system for confirming a location of a terminal according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a process of collecting and reporting RF fingerprints for position estimation of a terminal.
  • the terminal may transmit an RF fingerprint to the serving base station instead of the correct location information thereof.
  • the serving base station can then predict the location of the terminal using the received RF fingerprint.
  • the RF fingerprint and the location prediction information may be used interchangeably in the same meaning.
  • the terminal 205 in the standby mode performing the MDT measurement collects and records RF fingerprints from neighboring eNBs 215, 220, and 225. Thereafter, the terminal 205 is connected to a serving eNB 210 to enter a connected mode. The terminal 255 in the connected mode transmits the recorded RF fingerprint to the serving base station 260. At this time, the RF fingerprint is not collected because it is limited to the terminal 205 in the standby mode, and the terminal 255 in the connected mode may also collect the RF fingerprint and transmit it to the serving base stations 210 and 260.
  • the terminal 205 in the standby mode is camped in a cell of the first serving base station 210.
  • the terminal 205 collects E-UTRAN Cell Global Identifier (ECGI) information, which is cell information, from the first serving base station 210 as an MDT measurement sample. Where the ECGI information is a unique identifier of the first serving base station.
  • the terminal 205 in the standby mode collects a reference signal received power (RSRP) value, which is a value of the signal strength of the first serving base station 210.
  • RSRP reference signal received power
  • the terminal 205 performs physical cell identity (PCI) information and RSRP as cell information as an MDT measurement sample in steps 235, 240, and 245 from neighboring base stations (Neighboring eNBs 1, 2, 3; 215, 220, and 225). Collect the values.
  • PCI is an identifier indicating a corresponding base station, such as ECGI.
  • ECGI is a unique value for each base station, whereas a PCI value may be reused, and a plurality of different base stations may have the same PCI value. And ECGI is used to distinguish each base station, the size of the identifier value is large. Therefore, it is a burden in terms of resource efficiency to use ECGI values in each communication setup process.
  • the ECGI value is used in the initial setting of the communication, and the relatively small PCI is used in the subsequent communication setting to distinguish the base stations.
  • the size of the PCI is relatively small to distinguish all base stations and is reused. Therefore, base stations located in the longest distance from each other are allocated the same PCI so that there is no crosstalk between the base stations.
  • the terminal 205 in the standby mode uses the ECGI information of the first serving base station 210 to determine the location in the correct service area.
  • the terminal 205 in the standby mode collects PCI values of neighbor base stations to identify neighbor base stations located near the terminal 205.
  • the RF fingerprints collected in steps 230, 235, 240, and 245 may be transferred to the connected second serving base station 260 when the terminal 205 in the standby mode is switched to the connected mode in step 250.
  • the first serving base station 210 and the second serving base station 260 may be the same base station or different base stations. In this case, when the first serving base station 210 and the second serving base station 260 are different, the terminal 205 in the standby mode is located in the first serving base station 210 and is handed over to the second serving base station 260. it means.
  • the terminal 255 in the connected mode may transmit the RF fingerprint, which is location prediction information, together with the MDT measurement sample recorded in step 265.
  • the current LTE standard is limited to the number of base stations that can be included in the RF fingerprint.
  • the cell information of the selected intra-freq neighbor base stations will be included in the MDT measurement sample. If the terminal cannot acquire Global Nevigation Satellites System (GNSS) location information, the terminal will include the RF fingerprint composed of PCI and RSRP values of six intra-freq neighbor base stations in the MDT measurement sample instead of the accurate location information. . According to the present invention, if the RF fingerprint is included in the MDT measurement sample, the terminal can reuse it as cell information of the intra-freq neighbor base station. In this case, the size of the MDT measurement sample stored in the terminal can be reduced.
  • GNSS Global Nevigation Satellites System
  • one MDT measurement sample 130 described with reference to FIG. 1 has a field including location information IE (Information Element) including location information and cell information of an adjacent base station. Therefore, the RF fingerprint may be recorded in the location information IE or may be recorded in a portion of the adjacent cell measurement information field. Regardless of which field the RF fingerprint is recorded, it is not necessary to record the same cell information as the neighbor cell information included in the RF fingerprint in the neighbor cell measurement information field of the MDT specific sample. Therefore, if the GNSS location information cannot be obtained and the RF fingerprint must be recorded, the terminal includes six intra-freq neighbor cell information as RF fingerprints among neighbor cell information collected at every DRX (Discontinuous Reception). The terminal additionally includes only neighbor cell measurement information required as an MDT measurement sample in the neighbor cell measurement information field.
  • IE Information Element
  • the intra-freq neighbor cells selected by one of the methods mentioned above and the six intra-freq neighbor cells determined by the RF fingerprint are determined by different methods.
  • the terminal records cell information of neighboring base stations as an MST measurement sample, cell information of six intra-freq neighboring base stations determined by the RF fingerprint is recorded in priority order.
  • the terminal additionally records necessary cell information among unrecorded cell information, the size of memory required as an MDT measurement sample can be saved.
  • FIG. 3 is a diagram illustrating a cell information storage method in a terminal according to a first embodiment of the present invention.
  • FIG. 3 is a flowchart for explaining a cell information recording method efficiently when a plurality of cell information for an MDT measurement sample exists.
  • Rule 1 refers to a method of acquiring accurate position information by GPS, which is a first cell information measuring method, and measuring cell information from a neighboring base station
  • Rule 2 is a position of cell information of neighboring base stations, a second cell information measuring method. It means a method of acquiring RF fingerprint which is prediction information.
  • step 305 the terminal triggers cell information for recording as an MDT measurement sample according to Rule 1.
  • the terminal determines whether cell information having a high priority is triggered by Rule2. If the high priority cell information is not triggered, the terminal selects and stores cell information to be recorded as an MDT measurement sample according to Rule 1. However, if cell information is triggered by rule 2, the terminal stores the cell information of high priority.
  • the terminal should record all necessary cell information while reducing the memory size.
  • the terminal checks whether the cell information according to Rule 1 includes all the cell information according to Rule 2 having high priority. If the cell information according to Rule 1 is included in the cell information according to Rule 1, the terminal may record all the cell information indicated by the low priority Rule 1 method in step 320.
  • the terminal stores all the cell information according to Rule 2 having a high priority in step 325 as an MDT measurement sample.
  • the terminal further stores the remaining cell information except the cell information recorded by Rule 2 among the cell information according to Rule 1 in the MDT measurement sample.
  • the RF fingerprint which is location prediction information, may be stored in an information field in which intra-freq neighboring cell measurements are recorded in the MDT measurement sample. If the GNSS information cannot be recorded, the terminal changes the neighbor cell selection method so that intra-freq neighboring cell measurement can include an RF fingerprint.
  • the terminal may expand and record up to 6, which is the number of cells required for the RF fingerprint. .
  • the terminal may save the size of the memory by recording only the signal quality information of the three neighboring base station cell information among the six neighboring base station cell information necessary for the RF fingerprint.
  • the terminal may access the cell information of the neighbor base station not included in the RF fingerprint. You can perform full logging for this.
  • FIG. 4 is a diagram illustrating a cell information storage method measured in a terminal according to a second embodiment of the present invention.
  • step 405 the terminal determines the number n of intra-freq neighbor base stations to be measured for the MDT measurement sample based on a specific cell information measurement method.
  • the terminal determines in step 410 whether the RF fingerprint is determined along with the X cell information as the location information.
  • the terminal determines the PCI, signal strength information (eg RSRP) and signal quality (eg RS) of the cell information of the n intra-freq neighbor base stations selected in step 420. Record RSRQ information as MDT measurement sample.
  • the terminal determines whether the number of cell information of the intra-freq neighboring base station measured in step 415 is larger than the X number of cell information determined by the RF fingerprint.
  • the terminal determines signal strength information such as PCI and RSRP, the cell information of the intra-freq neighbor base stations measured in step 420.
  • Signal quality information such as signal strength information and RSRQ are recorded as MDT measurement samples.
  • the terminal determines the PCI and signal strength information, which is the X cell information determined by the RF fingerprint, in step 425. Record as. In step 430, the terminal may additionally record the remaining cell information which does not overlap with the X cell information determined by the RF fingerprint among the cell information of the measured intra-freq neighbor base stations. In this manner, cell information determined by RF fingerprint and cell information of an intra-freq neighbor base station can be recorded without duplication.
  • a case in which cell information is separately recorded into a location information field and a neighboring cell measurement field will be described with reference to FIG. 5.
  • a location information field storing location information acquired by an RF fingerprint and an MDT measurement sample field storing neighboring cell measurement are separated. Therefore, the existing neighbor cell selection method is used, but the terminal records only cell information not included as an RF fingerprint by intra-freq neighbor cell measurement.
  • intra-freq neighboring cell measurement includes only signal quality.
  • the terminal performs full logging on the cell information of the base station not included in the RF fingerprint. do.
  • FIG. 5 is a diagram illustrating a cell information storage method measured in a terminal according to a third embodiment of the present invention.
  • step 505 the terminal sets the number n of cell information of an intra-freq neighbor base station as an MDT measurement sample based on a specific cell information measurement method.
  • step 510 the terminal determines whether an RF fingerprint is determined along with cell information of X neighbor base stations as location information. If the RF fingerprint is not determined together with the cell information of the X neighbor base stations, the terminal MDT the PCI, signal strength information (eg RSRP) and signal quality (eg RSRQ) information of the intra-freq neighbor base stations selected in step 520. Record in the Measurement Sample field.
  • RSRP signal strength information
  • RSRQ signal quality
  • the terminal checks whether the number of cell information of the intra-freq neighboring base station selected in step 515 is greater than the number X of cell information to be included as the RF fingerprint. If there are many, the terminal records the PCI and signal strength information, which is the cell information of the X base stations included in the RF fingerprint, in step 525 in the location information field.
  • the terminal stores signal quality information, which is cell information of X base stations included in the RF fingerprint, in the MDT measurement sample field (530).
  • the terminal records PCI, signal strength information (eg RSRP) and signal quality (eg RSRQ) information of cell information of the remaining intra-freq neighbor base stations in the MDT measurement sample field. do.
  • the terminal determines the PCI and signal strength information of the cell information of the X neighboring base stations required as the RF fingerprint information in step 540. In the location information field. The terminal additionally records the cell information of the intra-freq neighbor base stations in the MDT measurement sample field among the information not recorded in step 545. By this method, it is possible to record the cell information of the RF fingerprint and the intra-freq neighbor base stations without duplication.
  • FIG. 6 is a diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
  • a transmitter / receiver 605 receives cell information transmitted from neighbor base stations.
  • the transceiver 605 may receive location information on the current location of the terminal from the GPS.
  • the memory 610 stores necessary cell information among the cell information measured by the transceiver 605 according to an instruction of the controller 615.
  • the necessary cell information is necessary information for recording as an MST measurement sample, and the Global ID, PID, signal strength information (eg RSRP), signal quality (eg RSRQ) information, location information of the terminal, etc. This includes.
  • the controller 615 instructs the cell information of neighboring base stations to be stored in the memory 610 efficiently according to the procedure described in the present invention.
  • the controller 615 obtains an RF fingerprint which is location prediction information for confirming the location of the terminal by checking cell information of neighboring base stations.
  • the controller 615 stores the cell information included in the RF fingerprint as the priority when storing the cell information as the MDT measurement sample in the memory 610.
  • the controller 615 stores the remaining cell information in the memory 610 except the cell information included in the RF fingerprint among the measured cell information of the neighbor base stations.
  • the terminal may store the measured cell information and the cell information included in the RF fingerprint so as not to overlap each other. Accordingly, the size occupied by the MDT measurement sample in the memory can be adjusted.
  • the terminal receives cell information of at least one neighboring base station, determines whether location prediction information is determined together with at least one cell information as the location information among the received cell information, and when the location planning information is determined, the location scheduling The at least one cell information determined as information is recorded as a sample of a Minimization of Drive Test (MDT) measurement for reporting a wireless environment.
  • MDT Minimization of Drive Test
  • FIG. 7 is a diagram illustrating a cell information storage method measured in a terminal according to a fourth embodiment of the present invention.
  • the number of neighbor cells required for MDT is smaller than the number of neighbor cells required for RF fingerprint.
  • the method of measuring and storing cell information in the terminal may be performed as shown in FIG. 7.
  • step 705 the terminal determines the number n of intra-freq neighbor base stations to be measured for the MDT measurement sample based on a specific cell information measurement method. The terminal then receives cell information from n neighbor base stations for the MDT measurement sample.
  • the terminal determines whether the RF fingerprint is determined along with the X cell information as the location information in step 710.
  • the value of X which is the number of cell information of the neighbor base station to be used as the RF fingerprint, is greater than or equal to n, which is the number of intra-freq neighbor base stations measured for the MDT measurement sample.
  • the terminal may perform PCI, signal strength information (eg, RSRP), signal quality of cell information of n intra-freq neighbor base stations selected in step 715. Record the information (eg RSRQ) as a MDT measurement sample.
  • signal strength information eg, RSRP
  • the terminal records the PCI and signal strength information, which is the X cell information determined as the RF fingerprint, in step 720 as the MDT measurement sample.
  • the terminal may additionally record the remaining cell information which does not overlap with the X cell information determined by the RF fingerprint among the measured cell information of the intra-freq neighbor base stations. In this manner, cell information determined by RF fingerprint and cell information of an intra-freq neighbor base station can be recorded without duplication.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un procédé de gestion d'informations de cellule qui sont reçues d'une station de base voisine dans un rapport de mesure de minimisation de test d'entraînement (MDT) d'un système 3GPP, et un terminal qui exécute le procédé, et l'invention comprend : une unité d'émission et de réception qui reçoit des informations de cellule qui sont transmises à partir d'au moins une station de base voisine, une unité de commande qui confirme au moins une information des informations de cellule qui est utilisée comme information de position prédictive pour confirmer la position actuelle d'un terminal, parmi les informations de cellule qui sont reçues par l'intermédiaire de ladite unité d'émission et de réception par un échantillon de mesure de minimisation de test d'entraînement (MDT) de façon à effectuer un rapport concernant un environnement sans fil, et une mémoire qui conserve en mémoire au moins une information des informations de cellule qui est utilisée en tant que ladite information de position prédictive par ledit échantillon de mesure de MDT sous la commande de ladite unité de commande. Ainsi, le terminal peut enregistrer efficacement des informations de mesure de cellule voisine, selon que des informations d'empreintes digitales RF sont enregistrées ou non dans un mode veille.
PCT/KR2011/007346 2010-10-08 2011-10-05 Terminal et procédé de gestion d'informations de cellule dans un terminal Ceased WO2012047005A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/824,596 US9031554B2 (en) 2010-10-08 2011-10-05 Terminal and method for managing cell information in terminal
US14/671,059 US9526025B2 (en) 2010-10-08 2015-03-27 Terminal and method for managing cell information in terminal

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20100098490 2010-10-08
KR10-2010-0098490 2010-10-08
KR1020100108965A KR101746588B1 (ko) 2010-10-08 2010-11-04 단말기 및 그 단말기에서 셀 정보 관리 방법
KR10-2010-0108965 2010-11-04

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/824,596 A-371-Of-International US9031554B2 (en) 2010-10-08 2011-10-05 Terminal and method for managing cell information in terminal
US14/671,059 Continuation US9526025B2 (en) 2010-10-08 2015-03-27 Terminal and method for managing cell information in terminal

Publications (2)

Publication Number Publication Date
WO2012047005A2 true WO2012047005A2 (fr) 2012-04-12
WO2012047005A3 WO2012047005A3 (fr) 2012-05-31

Family

ID=45928211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/007346 Ceased WO2012047005A2 (fr) 2010-10-08 2011-10-05 Terminal et procédé de gestion d'informations de cellule dans un terminal

Country Status (1)

Country Link
WO (1) WO2012047005A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112745A1 (fr) * 2013-01-17 2014-07-24 Lg Electronics Inc. Procédé permettant de rapporter des données d'état de cellule dans un système de communication sans fil, et appareil associé
WO2015009130A1 (fr) * 2013-07-19 2015-01-22 Samsung Electronics Co., Ltd. Procédé et appareil de communication coopérative dans un système de communication sans fil
CN108271246A (zh) * 2016-12-31 2018-07-10 中国移动通信集团湖北有限公司 一种用户设备定位的方法、装置及服务器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100875829B1 (ko) * 2006-03-03 2008-12-24 주식회사 케이티프리텔 동기 ｃｄｍａ 무선망의 무선 품질 측정 방법 및 시스템
US20080077472A1 (en) * 2006-09-26 2008-03-27 Polaris Wireless, Inc. Efficient Deployment of Mobile Test Units to Gather Location-Dependent Radio-Frequency Data
RU2009141915A (ru) * 2007-04-27 2011-06-10 Ntt Docomo, Inc. (Jp) Система мобильной связи, базовая станция, мобильная станция и способ получения характеристики распространения сигнала
ES2368385T3 (es) * 2009-01-29 2011-11-16 Lg Electronics Inc. Esquema de transmisión de señales para una gestión eficaz del canal dedicado mejorado común.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112745A1 (fr) * 2013-01-17 2014-07-24 Lg Electronics Inc. Procédé permettant de rapporter des données d'état de cellule dans un système de communication sans fil, et appareil associé
US10342034B2 (en) 2013-01-17 2019-07-02 Lg Electronics Inc. Method for reporting cell status information in wireless communication system and an apparatus therefor
WO2015009130A1 (fr) * 2013-07-19 2015-01-22 Samsung Electronics Co., Ltd. Procédé et appareil de communication coopérative dans un système de communication sans fil
US10312971B2 (en) 2013-07-19 2019-06-04 Samsung Electronics Co., Ltd. Method and apparatus for cooperative communication in wireless communication system
CN108271246A (zh) * 2016-12-31 2018-07-10 中国移动通信集团湖北有限公司 一种用户设备定位的方法、装置及服务器
CN108271246B (zh) * 2016-12-31 2020-09-25 中国移动通信集团湖北有限公司 一种用户设备定位的方法、装置及服务器

Also Published As

Publication number Publication date
WO2012047005A3 (fr) 2012-05-31

Similar Documents

Publication Publication Date Title
KR101746588B1 (ko) 단말기 및 그 단말기에서 셀 정보 관리 방법
WO2012046999A2 (fr) Procédé et appareil de commande de rapport d'informations de mesure dans un système 3gpp
WO2011139088A2 (fr) Procédé et appareil d'enregistrement d'informations de mesures de canal dans un système de communication mobile
WO2012046985A2 (fr) Appareil et procédé de commande de rapport de mesure mdt dans un système 3gpp
EP2446664B1 (fr) Signalement et utilisation d'un niveau de confiance d'un événement de mesure d'équipement d'utilisateur
WO2013042934A2 (fr) Procédé et système pour mettre en œuvre une station relais mobile
WO2013105790A1 (fr) Procédé et appareil d'enregistrement chronologique de données
WO2013169013A1 (fr) Procédé et appareil de transmission et réception d'informations de mesure dans un système de communication mobile
WO2013055102A1 (fr) Procédé et dispositif permettant de suggérer des informations d'enregistrement et d'acquérir des informations de position pour permettre une utilisation efficace de la technologie mdt dans un système de communication mobile
WO2015115867A1 (fr) Mesure dans un service de radiodiffusion multimédia multidestinataire - mbms -
WO2011136611A2 (fr) Gestion de la mémorisation de données de mesure
WO2011056028A2 (fr) Procédé, appareil et sysème de rapport de marge de puissance dans un système de communication mobile
WO2012039440A1 (fr) Procédé sans fil de collecte de mesures et terminal sans fil
WO2012165930A2 (fr) Procédé et appareil permettant de contrôler efficacement un mdt dans une pluralité de plmn
WO2012023733A2 (fr) Procédé destiné à permettre à un terminal de signaler un résultat de mesure pour un mdt à une station de base dans un système de communication sans fil et dispositif associé
CN103155619A (zh) 无线测量收集方法和无线终端
WO2013051858A2 (fr) Procédé et appareil pour resélectionner une cellule dans des réseaux hétérogènes dans un système de communication sans fil
EP4265002A1 (fr) Procédé et ue pour une commutation de session de données 5g
US9629017B2 (en) Method and apparatus for transmitting/receiving MDT measurement information in mobile communication system
KR101653976B1 (ko) 이동통신 시스템에서 위치 예측 정보를 구성하는 방법 및 장치
WO2012047005A2 (fr) Terminal et procédé de gestion d'informations de cellule dans un terminal
EP2852204A1 (fr) Procédés et programmes informatiques permettant de déterminer des informations liées aux performances d'un émetteur-récepteur de station de base
WO2022231382A1 (fr) Procédé et ue pour une commutation de session de données 5g
CN102215520A (zh) 一种路测的测量控制方法、系统及终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11830890

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 13824596

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11830890

Country of ref document: EP

Kind code of ref document: A2