WO2006106921A1 - Système de gestion de niveau de service pour communication mobile - Google Patents

Système de gestion de niveau de service pour communication mobile Download PDF

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Publication number
WO2006106921A1
WO2006106921A1 PCT/JP2006/306839 JP2006306839W WO2006106921A1 WO 2006106921 A1 WO2006106921 A1 WO 2006106921A1 JP 2006306839 W JP2006306839 W JP 2006306839W WO 2006106921 A1 WO2006106921 A1 WO 2006106921A1
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WO
WIPO (PCT)
Prior art keywords
communication
mobile terminal
service
availability
service level
Prior art date
Application number
PCT/JP2006/306839
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English (en)
Japanese (ja)
Inventor
Yasuhiko Matsunaga
Original Assignee
Nec Corporation
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
Application filed by Nec Corporation filed Critical Nec Corporation
Priority to JP2007511167A priority Critical patent/JP4941296B2/ja
Publication of WO2006106921A1 publication Critical patent/WO2006106921A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters

Definitions

  • the present invention relates to service level management of communication services in a mobile communication system, and more particularly to a method of analysis in which a mobile terminal measures the availability and quality of communication services and reports them to a management server.
  • radio wave propagation information In mobile communication systems, areas that provide communication services are generally designed by collecting and analyzing radio wave propagation information offline. This collection of radio wave propagation information is performed by specialized personnel traveling in the area using a vehicle equipped with a radio wave condition analysis device and positioning means such as GPS (Global Positioning System). Since the number of observation points during travel is limited, the communication service quality of the entire service area is estimated separately using a radio wave propagation simulator, and the operation parameters of the network equipment are changed according to the result.
  • GPS Global Positioning System
  • quality information in units of radio cells is transmitted to network servers such as radio base station control devices and switching stations from the management server. Monitoring by periodically transmitting. For example, in a mobile communication system based on the specifications of 3GPP (3rd Generation Partnership Project), statistical information to be acquired by a radio base station control device or an exchange is defined! (See Non-Patent Document 2).
  • Patent Document 2 a plurality of observation points in a service area of a mobile communication system are generally used. A method of transmitting signal strength measurement results via a mobile communication network is shown.
  • Patent Document 3 when the radio wave measurement system determines that measurement of radio wave conditions is necessary, it designates the measurement time and measurement area and instructs the mobile communication network to perform measurement. A method of obtaining the situation measurement results is shown.
  • Patent Document 4 discloses a method of transmitting a radio wave condition measured at a general mobile terminal to a management server together with position information measured using a positioning device such as GPS.
  • Patent Document 1 Japanese Patent Laid-Open No. 08-172403
  • Patent Document 2 JP 2001-298398 A
  • Patent Document 3 Japanese Patent Laid-Open No. 2004-214875
  • Patent Document 4 Japanese Patent Laid-Open No. 2003-204296
  • Non-patent literature 1 Jaana Laiho, Achim Wacker, Tomas Novosad, Radio Network Planning and Optimization for UMTS ", John Wiley & Sons, 2002.
  • Non-Patent Document 2 3GPP TS 32.403, "Telecommunication management; Performance Management (PM); Performance measurements-UMTS and combined UMTS / GSM (Re lease 5)", 2004.
  • Non-Patent Document 3 3GPP TS 25.413 V 4.0.0, "UTRAN Iu interface RANAP signaling (Rel ease 4)", 2001.
  • a mobile communication carrier communicates only in a part of its service area, for example, in a limited area such as the inside of a building owned by a corporation or a range that can be covered by a specific radio base station.
  • a limited area such as the inside of a building owned by a corporation or a range that can be covered by a specific radio base station.
  • the present invention provides a method for measuring the availability of a communication service on the mobile terminal side and automatically managing the management server even when there is a dead zone within the service area or when a failure occurs in the radio base station.
  • the purpose is to provide a service level management system that checks compliance with the SLA by reporting.
  • Another object of the present invention is to detect an SLA violation event or a decrease in quality margin when a limited area for guaranteeing communication services is provided, and presents a measure for improvement. Is to provide functionality.
  • Still another object of the present invention is to provide a function for performing service level monitoring according to a subscriber's SLA contract without changing the database of an existing network management device.
  • the present invention provides a mobile terminal of a service level management system. If the communication service becomes unavailable, the means for measuring the availability of communication services based on the reception quality of the pilot channel of the nearest radio base station, the means for measuring self-location, and the communication service become unavailable. It has means for recording communication failure information, which is the time, self-location, and immediately preceding radio wave status, and means for transmitting the measured availability and recorded communication failure information to the management server via the mobile communication network. And
  • the availability of the communication service is measured and the communication failure information is recorded only when the self-position of the mobile terminal is within a predetermined area.
  • the communication service used by the mobile terminal during the predetermined measurement period Call connection request count, call connection success count, average call setup time, communication normal completion count, communication abnormal completion count, average transfer rate, average transfer delay amount, or average transfer delay Means for measuring communication service quality including one or more of jitter or average frame loss rate.
  • the means for receiving the measurement result of the communication service availability from the mobile terminal is compared with each received measurement result and the guaranteed availability.
  • the mobile terminal side measures the availability of communication service and the service quality. And automatic reporting to the management server enables efficient understanding and maintenance of service levels.
  • FIG. 1 is a configuration diagram of a mobile communication system in a first embodiment of the present invention.
  • FIG. 2 is a diagram showing an internal configuration of a mobile terminal 10 in the first embodiment.
  • FIG. 3 is a diagram showing the contents of service availability record information 400 of the mobile terminal 10 in the first embodiment.
  • FIG. 4 is a diagram showing an internal configuration of a service level management server 100 in the first embodiment.
  • FIG. 5 is a diagram showing the contents of availability statistics information 500 of the service level management server 100 in the first embodiment.
  • FIG. 6 is a diagram showing the contents of availability guarantee level information 540 of the service level management server 100 in the first embodiment.
  • FIG. 7 is a state transition diagram relating to availability measurement of the mobile terminal 10 in the first embodiment.
  • FIG. 8 is a diagram showing an operational flow of availability rate statistical information update processing of the service level management server 100 in the first embodiment.
  • FIG. 9 is a diagram showing an operational flow of availability ratio comparison processing of the service level management server 100 in the first embodiment.
  • FIG. 10 is a diagram showing an internal configuration of a mobile terminal 10 in a second embodiment.
  • FIG. 11 is a diagram showing the contents of service guarantee area record information 450 of the mobile terminal 10 in the second embodiment.
  • FIG. 12 is a state transition diagram relating to availability measurement of the mobile terminal 10 in the second embodiment.
  • FIG. 13 is a diagram showing the contents of availability record information 420 of the mobile terminal 10 in the third embodiment.
  • FIG. 14 is a diagram showing an internal configuration of a mobile terminal 10 in a fourth embodiment.
  • FIG. 15 is a diagram showing the contents of service quality record information 470 of the mobile terminal 10 in the fourth embodiment.
  • FIG. 16 is a diagram showing an internal configuration of a service level management server 100 in the fourth embodiment.
  • FIG. 17 is a diagram showing the contents of communication service quality statistics information 600 of the service level management server 100 in the fourth embodiment.
  • FIG. 18 is a diagram showing the contents of communication service quality assurance level information 700 of the service level management server 100 in the fourth embodiment.
  • FIG. 19 is a state transition diagram related to communication service quality measurement of the mobile terminal 10 in the fourth embodiment.
  • FIG. 20 is a diagram showing an operation flow of communication service quality statistics information update processing of the service level management server 100 in the fourth embodiment.
  • FIG. 21 is a diagram showing an operation flow of communication service quality comparison processing of the service level management server 100 in the fourth embodiment.
  • FIG. 1 shows a configuration of a mobile communication system as a first embodiment of the present invention.
  • Subscriber terminals 10 and 11 are connected to radio base station 30 via radio links 20 and 21, and subscriber terminal 12 is connected to radio base station 31 via radio link 22 and subscriber terminals 13 and 14 are connected. Is connected to the radio base station 32 via radio links 23 and 24.
  • the measurement of the availability rate of the communication service is performed at the mobile terminal when passing through the service insensitive zone 84 when the mobile terminal 10 moves inside the service area 80 of the radio base station 30 along the trajectory 1, for example. It is.
  • the availability rate is also updated when communication is not possible due to a failure of the radio base station.
  • the radio base station controller 50 is connected to the mobile communication core network 60 via a wired link 43, and from the subordinate radio base stations 30, 31, 32 to the communication traffic and control traffic via the wired links 40, 41, 42. Send and receive.
  • the network management device 90 is connected to the radio base station control device 50 and the mobile communication core network 60 internal switching stations and server devices via wired links 44 and 45, and if network failure monitoring is performed at the cell level, Monitor communication service quality. Furthermore, a service level management server 100 is connected to the external network 70 via a wired link 47, and monitors the availability of communication services and the quality of communication services at the mobile terminal.
  • the service level management server 100 may be in an external network as shown in FIG. 1, or may be in a mobile communication network owned by a mobile communication carrier.
  • the service level management server in the present invention mainly manages whether the service level complies with the contract value.
  • the service level management server can be linked with the network management device 90, the service level management server Various feedback controls can be performed at the time of contract violation. Such cooperation with the network management device 90 is further facilitated when the service level management server 100 is inside the mobile communication network owned by the mobile communication carrier.
  • FIG. 2 shows the internal configuration of the mobile terminal 10 in the first embodiment of the present invention.
  • the mobile terminal 10 is a mobile terminal of the digital mobile communication system, and functions as the following execution means by a control program stored in the memory. [0031]
  • the application execution unit 208 instructs the communication control unit 207 to set up a communication channel, and uses the transceiver 200. Send and receive communication traffic.
  • correction and retransmission control of errors occurring in the radio link are performed by error control means 206.
  • the transceiver 200 outputs to the pilot signal quality measuring means 201 the pilot channel signal that also received the nearest radio base station (group) power.
  • the signal quality of this pilot signal is used for connection / disconnection to / from the radio base station and for selection control of the radio base station during movement.
  • the service availability measurement unit 202 determines whether or not the communication service is available at the mobile terminal. It records in the availability rate recording means 205.
  • the measurement record information transmitting unit 203 obtains a predetermined transmission cycle timing from the clock unit 204, and sends the availability measurement result stored in the service availability recording unit 205 to the service level management server 100. Send to.
  • FIG. 3 shows the contents of the service availability record information 400 of the mobile terminal 10 in the first embodiment of the present invention.
  • Measurement start date and time (Ts) 401 and measurement end date and time (Te) 402 indicate the date and time when the measurement of the communication service availability was started and ended.
  • the normal communication period (Tn) 403 represents the time during which the communication service was available during the time the mobile terminal was powered on during the measurement period.
  • the communication abnormal period (Ta) 404 represents the time during which the communication service is unavailable during the measurement period during which the mobile terminal is powered on.
  • FIG. 4 shows the internal configuration of the service level management server 100 in the first embodiment of the present invention.
  • the service level management server 100 is a management server for the digital mobile communication system, and functions as the following execution means by a control program stored in a memory.
  • the availability statistics information update means 303 makes the availability for the subscriber concerned. Update rate statistics It is stored in availability rate statistical information holding means 304.
  • the availability comparison means 305 compares the availability guarantee level for each service class, which is stored in advance in the availability guarantee level storage means, with the availability statistics measured for each subscriber, and compares them. As a result, if the availability rate to be guaranteed is not met or the margin of availability rate is reduced, the service level violation warning display means is instructed to display the service level violation warning.
  • the network management device notification means 313 provides radio resources for the mobile terminal in order to improve the availability ratio. Notify the network management device 90 to increase the priority of allocation.
  • the priority of radio resource allocation is input from the mobile communication core network to the radio base station controller when a mobile terminal makes an incoming / outgoing call Allocation / Retention Priority information included in the RAB Parameters information element of the RAB Assignment Request message. Details of the Allocation / Retention Priority parameter are detailed in Section 9.2.1.
  • FIG. 5 shows the contents of the availability rate statistics information 500 of the service level management server 100 in the first embodiment of the present invention.
  • service class 510 For each subscriber ID that identifies a subscriber, service class 510, availability measurement information 511, and availability history information 512 that the subscriber has contracted are stored.
  • the availability history information 512 holds the content every time the availability measurement result is received from the mobile terminal, and the content is a summary of the service availability record information 400 received by multiple mobile terminals. is there.
  • the availability measurement value 511 is calculated.
  • FIG. 6 shows the contents of the availability guarantee level information 540 of the service level management server 100 in the first embodiment of the present invention.
  • the availability of communication services is defined for each service class.
  • the value of guaranteed availability 560 corresponding to three types of service classes A, B, and C is shown.
  • service class A is a premium service with the highest guaranteed availability rate
  • service class B is a basic service for corporations with limited guarantee items than service class A
  • service class C is a general service that does not guarantee the availability rate.
  • Corresponding to A relationship is set.
  • the network management server 90 is well known to those skilled in the art and is not directly related to the present invention, its detailed configuration is omitted.
  • the initial state is the power-off state 800.
  • the measurement start state 801 is an intermediate state that passes temporarily, and transitions to a communication normal state 802 when the radio wave condition is good and to a communication abnormal state 803 when the radio wave condition is bad.
  • Timers T1 and T2 are timers for counting the normal communication period and abnormal communication period, respectively.
  • the measurement end time Te is recorded, T1 is added to the communication normal period Tn, and the timer T1 is set after transmitting the availability measurement result. Resume and record the measurement start time Ts at the end.
  • the transmission timing is rescheduled to wait until the next transmission timing.
  • the mobile terminal detects a power-off event in the communication normal state 802 and the communication abnormal state 803, it transits to the power-off state 800.
  • transition from normal communication status 802 stops timer T1 Then, add the value of Tl to the normal communication period Tn, stop the timer T2 when transitioning from the abnormal communication state 803, and add the value of the timer T2 to the abnormal communication period Ta.
  • FIG. 8 shows an operational flow of availability rate statistics information update processing of the service level management server 100 in the first exemplary embodiment of the present invention.
  • the service level management server 100 receives the availability measurement result from the mobile terminal (step 901)
  • the service level management server 100 acquires the subscriber ID of the subscriber who uses the mobile terminal (step 902) and measures it from the availability statistical information holding means. Acquired utilization rate history information is acquired (step 903).
  • the availability measurement is acquired (step 903).
  • Step 904 the updated availability measurement value and the measured availability history information are output to the availability statistics information holding means (Step 905), and the process is terminated (Step 906). .
  • FIG. 9 shows an operation flow of the availability ratio comparison process of the service level management server 100 in the first example of the present invention.
  • subscriber information is sequentially selected from the top row of the availability rate statistical information holding means (step 921), and the service class to which the subscriber belongs is obtained (step 922).
  • the service class obtained here is the service class j's guaranteed availability rate from the availability guarantee level storage means (step 923)
  • the communication service availability rate during the subscriber's monitoring period is the service class. Compare with the guaranteed availability of j (step 924).
  • step 925 If the available rate to be guaranteed is satisfied with a margin (step 925), the process returns to step 921 to process the next subscriber. On the other hand, if the guaranteed availability is not met or the margin of availability is reduced (step 925), the service level violation warning of the subscriber is output to the service level violation warning display means (step 926), and further Output to the network management device notification means so as to increase the subscriber's radio resource allocation priority (step 927).
  • the processing is terminated (step 928).
  • the service level management system based on the present invention, even if there is a dead zone in the service area or when a failure occurs in the radio base station, the mobile terminal side can perform communication service. Measure availability and automatically report to management server By doing so, it becomes possible to efficiently check the availability rate of communication services on a subscriber basis and perform an avoidance operation.
  • the basic configuration is as described above, but a measurement method when the availability rate is guaranteed only in a certain limited area will be described.
  • FIG. 10 shows the internal configuration of the mobile terminal 10 in the second embodiment of the present invention.
  • the mobile terminal 10 includes service guarantee area recording means 209 and positioning means 210.
  • the mobile terminal 10 stores area information for which the availability rate is guaranteed in advance in the guaranteed area recording means 209.
  • the self-position is detected using the positioning means 210. If the self-position cannot be measured, the self-position obtained last when the communication service was available is used instead.
  • the service availability rate is recorded only when the self-location is within the guaranteed area stored in the guaranteed area recording means 209.
  • FIG. 11 shows the contents of the service guarantee area record information 450 of the mobile terminal 10 in the second embodiment of the present invention.
  • the guarantee area is defined by the combination of the latitude range 460 and the longitude range 461.
  • a mobile terminal can only be guaranteed availability if it is within area definition 1, 2, or 3.
  • Such area definition based on latitude and longitude is suitable when the positioning means 210 provided in the mobile terminal is based on GPS (Global Positioning System).
  • the definition of the area may not be a method based on latitude and longitude, and may be a method using a cell identifier of a radio base station or an identifier of a radio base station control device that guarantees availability.
  • FIG. 12 shows a state transition diagram related to the availability measurement of the mobile terminal 10 in the second embodiment of the present invention.
  • the difference from the state transition diagram in the first embodiment is that a new state called the out-of-area state 824 has been created.
  • the difference from the state transition diagram of the other first embodiment is that both the normal communication state and abnormal communication state are in the availability guarantee area. Only the normal communication within the area 822 and the abnormal communication within the area 823 are changed. When the mobile terminal moves outside the availability guarantee area, the mobile terminal transits to the out-of-area state 824, and stops measuring the normal communication period and the abnormal communication engine. Other operations are the same as those in the state transition related to the availability measurement of the mobile terminal 10 in the first embodiment shown in FIG.
  • the mobile communication carrier Even when availability is guaranteed only in a limited area, measurement and inspection of availability is possible.
  • FIG. 13 shows the contents of the availability record information 420 of the mobile terminal 10 in the third embodiment of the present invention.
  • the mobile terminal has a function of measuring its own position.
  • a history of communication failures is also reported.
  • Husband When a communication failure occurs, the mobile terminal records the occurrence date and time 430, the occurrence position 431, and the radio wave condition immediately before the failure occurs as communication failure histories 421 to 423, and transmits them to the service level management server. In this way, the mobile terminal transmits the communication failure history to the service level management server in addition to the availability measurement information, so that the service level management server can easily identify the point where the mobile communication system has a problem in coverage. Therefore, it can be used to improve the service level.
  • FIG. 14 shows the internal configuration of the mobile terminal 10 in the fourth embodiment of the present invention.
  • the mobile terminal 10 includes a service quality measuring means 211 and a service quality recording means 212.
  • the mobile terminal 10 stores area information in which the quality of the communication service is guaranteed in advance in the guaranteed area recording means 209.
  • the service quality measuring means 211 is used to measure the communication service quality and the result is serviced.
  • the stored measurement information is transmitted to the service level management server at a predetermined transmission timing.
  • FIG. 15 shows the contents of the service quality record information 470 of the mobile terminal 10 in the fourth embodiment of the present invention.
  • Each row is a statistical item to be acquired.
  • four types of call connection request count 481, call connection success count 482, communication normal completion count 484, and communication error completion count 485 are used.
  • Each column is a service available to subscribers, and four types are defined: circuit-switched voice call, circuit-switched videophone, circuit-switched data transfer, and packet-switched data transfer.
  • Each statistical item is collected for each of these services.
  • FIG. 16 shows the internal configuration of the service level management server 100 in the fourth embodiment of the present invention.
  • the difference from the first embodiment is that the communication service quality measurement result input means 308, the communication service quality statistical information update means 309, the communication service quality statistical information holding means 310, the communication service quality comparison means 311, the communication service quality assurance level
  • the storage means 312 is provided.
  • the communication service quality statistical information update unit 309 updates the availability statistics information for the subscriber and stores it in the communication service quality statistics information holding means 310.
  • the communication service quality comparison means 311 obtains the communication service quality level for each service class previously stored in the communication service quality assurance level storage means 312 and the communication service quality statistical information measured for each subscriber. As a result of the comparison, if the communication service quality to be guaranteed is not satisfied or the quality margin is lowered, the service level violation warning display means 307 is instructed to display a service level violation warning. Further, when the communication service quality comparison unit 311 detects a mobile terminal that does not satisfy the required communication quality or has a reduced quality margin, the network management device notification unit 313 performs wireless communication with the mobile terminal in order to improve the communication quality. Notify the network management device 90 to increase the priority of resource allocation.
  • FIG. 17 shows a communication service of the service level management server 100 in the fourth embodiment of the present invention.
  • the contents of the ibis quality statistics 600 are shown.
  • a service class 610 For each subscriber ID for identifying a subscriber, a service class 610, communication service quality measurement value 620, and communication service quality history information 630 contracted by the subscriber are stored.
  • the communication service quality history information 630 holds the contents of communication service quality received from the mobile terminal, and the contents are a summary of communication service quality measurement information received by a plurality of mobile terminals.
  • communication service quality measurement result 620 is calculated. For example, if the call setup completion rate 641 and the communication normal completion rate 642, the number of call connection requests 661, the number of successful call connections 662, the number of normal communication completions 663, the number of communication abnormal completions 664
  • Call setup completion rate number of successful call connections / number of call connection requests
  • Communication normal completion rate Communication normal completion count / (Communication normal completion count + Communication abnormal completion count).
  • FIG. 18 shows the contents of the communication service quality assurance level information 700 of the service level management server 100 in the fourth embodiment of the present invention.
  • the quality assurance item 720 of the communication service is defined for each service class, like the availability guarantee level information 540 in the first embodiment of the present invention shown in FIG. In this example, there are only two types of guaranteed items: call setup completion rate 721 and normal communication completion rate 723.
  • FIG. 19 shows a state transition diagram related to communication service quality measurement of the mobile terminal 10 in the fourth embodiment of the present invention. Since communication service quality is basically measured only in a communicable state, it is not necessary to have the communication failure state in the state transition diagram of the second embodiment shown in FIG. When a communication event occurs in in-area state 842, the communication service quality statistics are updated. On the other hand, in the out-of-area state 843, even if a communication event occurs, the communication service quality statistics are not updated. When the measurement result transmission timing arrives, the measurement end time Te is recorded, the measurement result is transmitted to the service level management server, and the measurement start time Ts is recorded to prepare for the next period measurement.
  • FIG. 20 shows an operation flow of communication service quality statistical information update processing of the service level management server 100 in the fourth exemplary embodiment of the present invention.
  • Service level management server When the mobile terminal power receives the communication service quality measurement result (step 941), it first obtains the subscriber ID of the mobile terminal (step 942) and obtains the measured communication service quality history information from the communication service quality information holding means. (Step 943). Next, based on the received measurement results, the communication service quality measurement value and communication service quality history information are updated (step 944), and the communication service quality measurement value and communication service quality updated in the communication service quality information holding means are updated. The history information is output (step 945) and the process is terminated (step 94 6).
  • FIG. 21 shows an operation flow of the communication service quality comparison process of the service level management server 100 in the fourth embodiment of the present invention.
  • subscriber information is sequentially selected from the top row of the communication service quality statistical information holding means (step 961), and the service class to which the subscriber belongs is acquired (step 962). If the service class obtained here is j, then the communication service quality assurance level storage means and the communication service quality assurance level information for service class j are referred to (step 963), and during the subscriber monitoring period.
  • the communication service quality of the communication service is compared with the guaranteed communication service quality of service class j (step 96 4).
  • step 965 If the communication service quality to be guaranteed is satisfied with a margin (step 965), the process returns to step 961 to process the next subscriber. On the other hand, if the guaranteed communication service quality is not satisfied or the margin of the communication service quality has decreased (step 965), the subscriber's service level violation warning is output to the service level violation warning display means (step 966). Output to the network management device notifying means so as to increase the radio resource allocation priority of the subscriber (step 967).
  • the processing is terminated (step 968).
  • the service level management system according to the fourth embodiment of the present invention, even when there is a dead zone in the service area or when a failure occurs in the radio base station, communication of the communication service is performed on the mobile terminal side.
  • the service level of communication services can be efficiently inspected and maintained on a subscriber-by-subscriber basis.

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

Abstract

L’invention concerne un système de gestion de niveau de service dans lequel on mesure la disponibilité d’un service de communication et la qualité de service pour chaque abonné même avec une zone morte dans une zone de service et l’on procède à un contrôle afin de les comparer avec le niveau de service garanti et de les maintenir. Un terminal mobile (10) dispose de moyens permettant de mesurer la disponibilité, l’historique des défaillances et la qualité de service d’un service de communication selon, par exemple, la qualité du signal pilote de la plus proche station de base radio, avant de transmettre les résultats de mesure à un serveur de gestion (100) par le biais d’un réseau de communication mobile. Si la région de garantie est limitée, le terminal mobile mesure sa position de même que la disponibilité et la qualité du service de communication uniquement si la station mobile est présente dans la région de garantie.
PCT/JP2006/306839 2005-03-31 2006-03-31 Système de gestion de niveau de service pour communication mobile WO2006106921A1 (fr)

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JP2009182764A (ja) * 2008-01-31 2009-08-13 Kddi Corp 広域移動通信エリアにおける屋内の通信品質値を収集する携帯端末、プログラム及び方法
JP4801740B2 (ja) * 2006-11-01 2011-10-26 富士通株式会社 無線通信システム
WO2011155308A1 (fr) * 2010-06-09 2011-12-15 日本電気株式会社 Système de prédiction de violation de contrat, procédé de prédiction de violation de contrat et programme de prédiction de violation de contrat
JP2013104772A (ja) * 2011-11-14 2013-05-30 Fujitsu Ltd フレーム伝送装置及び同期方法
JP2013542675A (ja) * 2010-10-04 2013-11-21 京セラ株式会社 移動通信方法、無線端末、及びプロセッサ
JP2014187612A (ja) * 2013-03-25 2014-10-02 Softbank Mobile Corp 小型基地局及びその稼動状況を監視する方法並びにコンピュータプログラム
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