WO2012113310A1 - Procédé, hlr et système pour éviter de transférer un piège - Google Patents

Procédé, hlr et système pour éviter de transférer un piège Download PDF

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Publication number
WO2012113310A1
WO2012113310A1 PCT/CN2012/071279 CN2012071279W WO2012113310A1 WO 2012113310 A1 WO2012113310 A1 WO 2012113310A1 CN 2012071279 W CN2012071279 W CN 2012071279W WO 2012113310 A1 WO2012113310 A1 WO 2012113310A1
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WO
WIPO (PCT)
Prior art keywords
hlr
forwarding
msc
called terminal
frequency
Prior art date
Application number
PCT/CN2012/071279
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English (en)
Chinese (zh)
Inventor
袁迎峰
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012113310A1 publication Critical patent/WO2012113310A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method, an HLR, and a system for avoiding a forward trap. Background technique
  • Voice call forwarding traps are very common in daily life. People often receive calls that are hanged in the middle of the night. These phone numbers are no different from domestic ordinary numbers. When people call back according to the phone number, they will Hear some advertisements, winnings, etc.; or the calling number may be forwarded to an audio station, such as being connected to a foreign porn chat or reactionary counseling center, and some criminals will charge the transfer fee. These malicious forward actions not only cause harassment of people's lives, but also cause losses to personal calls and operator calls.
  • HLR Home Location Register
  • MSC Mobile Switching Center
  • the main object of the present invention is to provide a method, HLR and system for avoiding a forward trap, which aims to improve operator image and customer satisfaction.
  • the present invention provides a method for avoiding a forward trap, which includes: after receiving a call request message initiated by a mobile switching center MSC, the home location register HLR acquires a forwarding frequency of the called terminal within a current predetermined time period. ;
  • the HLR When the forward frequency exceeds the set forward frequency threshold, the HLR returns a reject response message to the MSC.
  • the HLR acquires a forwarding frequency of the called terminal in the current predetermined time period as:
  • the HLR obtains the called terminal number from the call request message
  • the HLR detects the number of forwards of the called terminal number within the current predetermined time period
  • the HLR calculates the forwarding frequency within the current predetermined time period of the called terminal according to the number of forward rotations.
  • the method further comprises:
  • the HLR increases the number of forwards of the called terminal within the current predetermined time period by one;
  • the HLR returns a Allow Forwarding Response message to the MSC.
  • the method further includes: the HLR sending the forward trap alarm information to the alarm platform.
  • the present invention also proposes an HLR that avoids a forward trap, including:
  • An obtaining module configured to: after receiving the call request message initiated by the MSC, the HLR obtains a forwarding frequency of the called terminal within a current predetermined time period;
  • a sending module configured to return a rejection response message to the MSC when the forwarding frequency exceeds the set forwarding frequency threshold.
  • the acquiring module further includes:
  • An obtaining unit configured to obtain a called terminal number from the call request message
  • a detecting unit configured to detect a number of forwards of the called terminal number within a current predetermined time period
  • a calculating unit configured to calculate, according to the number of forwards, a forwarding frequency within a current predetermined time period of the called terminal.
  • the calculating unit is further configured to: when the forwarding frequency is less than the set forwarding frequency threshold, increase the number of forwards of the called terminal within the current predetermined time period by one;
  • the sending module is further configured to: when the forward rotation frequency is less than a set forward frequency threshold, The MSC returns a permission to forward response message.
  • the sending module is further configured to send the forward trap alarm information to the alarm platform after returning the reject response message to the MSC.
  • the present invention also provides a system for avoiding a forwarding trap, including an HLR and an MSC, where: the HLR is configured to obtain a forwarding frequency of the called terminal within a current predetermined time period after receiving a call request message initiated by the MSC. When the forwarding frequency exceeds the set forwarding frequency threshold, returning a rejection response message to the MSC;
  • the MSC is configured to: when the calling terminal calls the called terminal, initiate a call request message to the HLR; and when the forwarding frequency exceeds the set forwarding frequency threshold, receive a reject response message returned by the HLR, prohibiting the calling party
  • the terminal has a forward.
  • the HLR further includes:
  • An obtaining module configured to: after receiving the call request message initiated by the MSC, the HLR obtains a forwarding frequency of the called terminal within a current predetermined time period;
  • the sending module is configured to: when the forwarding frequency exceeds the set forwarding frequency threshold, return a rejection response message to the MSC, and send the forward trap alarm information to the alarm platform.
  • the method for avoiding forward traps, the HLR and the system proposed by the present invention compares the forward frequency of the called terminal within a predetermined time period with the set forward frequency threshold by the core network element HLR, and the current switching frequency exceeds
  • the HLR prohibits the calling terminal from forwarding forward through the MSC, and sends the forward trap alarm information to the alarm platform, which effectively limits the number of forwards per user within a predetermined time period through the system level configuration. , avoiding the occurrence of forward traps, thus avoiding the loss of individuals and operators.
  • the present invention utilizes the existing standard service message (3GPP, 3GPP2) process to solve the problem of the forward trap, effectively enhances the resistance and operation efficiency of the network system, and provides a not only for countries and regions with more forward traps.
  • 3GPP standard service message
  • the discovery of forward traps and the avoidance of forward traps also provide operators with an operational strategy that enhances the operator's image and customer satisfaction, and promotes the security of mobile networks. Operators can also operate according to their own operations
  • the strategy sets the forwarding frequency, such as the domestic forwarding frequency and the international forwarding frequency.
  • FIG. 1 is a schematic structural diagram of a N07 network in the present invention.
  • FIG. 2 is a schematic flow chart of an embodiment of a method for avoiding a forward trap according to the present invention
  • FIG. 3 is a schematic diagram of a process for obtaining a forwarding frequency of a called terminal within a current predetermined time period after receiving a call request message initiated by an MSC in an embodiment of the method for avoiding a forward trap according to the present invention
  • FIG. 4 is a schematic diagram of a user-conditional domestic forwarding process in an embodiment of the method for avoiding a forward trap of the present invention
  • FIG. 5 is a schematic structural diagram of an HLR according to an embodiment of the present invention for avoiding a forward trap
  • Figure 6 is a schematic view showing the structure of the HLR of the present invention for avoiding the forward trap
  • FIG. 7 is a schematic structural view of an embodiment of a system for avoiding a forward trap according to the present invention. detailed description
  • the solution of the embodiment of the present invention mainly provides a system level configuration by the HLR to limit the number of forwards of each user for a certain period of time, that is, the forwarding frequency.
  • the HLR calculates the current forwarding frequency of the user in real time, and the forwarding frequency. If the set forward frequency threshold is not exceeded, the connection is allowed. If the set forward frequency threshold is exceeded, the corresponding forward is rejected, to avoid the occurrence of the forward trap, and the network system's resistance and operating efficiency are enhanced, and the operator is enhanced. Image and customer satisfaction.
  • the operating environment of the embodiment of the present invention involves a core network based on the N07 network.
  • the MT mobile terminal accesses the core network through the wireless network; MSC, VLR (Visitor Location Register, visited location) The register), HLR (Home Location Register) and AUC (Authentication Center) are standard network elements of the core network in the N07 network.
  • the MSC is the mobile switching center, responsible for calling and connecting users, and the VLR is the visiting bit.
  • the register is used for temporarily storing the subscription information of the user
  • the HLR is a home location register for permanently storing the subscription information of the user and storing the location information of the user in real time;
  • the core network element MSC, the VLR and the HLR pass the N07 signaling network. Communicate.
  • an embodiment of the present invention provides a method for avoiding a forward trap based on the foregoing network structure, and the method includes the following steps:
  • Step S101 After receiving the call request message initiated by the MSC, the HLR obtains a forwarding frequency of the called terminal within a current predetermined time period;
  • the calling terminal when the calling terminal calls the called terminal, the calling terminal sends a call request to the core network element MSC where the called terminal is located, where the call request carries the called terminal number, and the calling terminal in this embodiment
  • the called terminal may specifically be a mobile terminal.
  • the MSC initiates a call request message to the HLR according to the call request initiated by the calling terminal, so that the call between the called terminal and the called terminal is established, or when the called number is signed unconditionally or conditionally forwarded, the calling terminal establishes A call with the forwarded number of the called terminal.
  • Step S102 determining whether the forwarding frequency exceeds the set forwarding frequency threshold, and if so, proceeds to step S103; otherwise, proceeds to step S104;
  • Step S103 The HLR returns a reject response message to the MSC.
  • the HLR can also send forward trap information to the alarm platform.
  • the network administrator can notify the user by means of an alarm bell, a short message, or a phone call.
  • the alarm information includes: the called terminal IMSI (international mobile subscriber identity), the called terminal number, the location information of the called terminal, and the forwarding information.
  • IMSI international mobile subscriber identity
  • the called terminal number the called terminal number
  • the location information of the called terminal the forwarding information.
  • Step S104 The HLR adds the number of forwards of the called terminal within the current predetermined time period by one.
  • Step S105 the HLR returns an allow forward response message to the MSC.
  • the HLR when the HLR receives the call request sent by the MSC After the message, the HLR obtains the forwarding frequency of the called terminal within the current predetermined time period, and when the current switching frequency does not exceed the set forwarding frequency threshold, the calling terminal is allowed to connect with the called terminal number, and at the same time, the HLR will The number of forwards of the called terminal in the current predetermined time period is increased by one, and the number of forwards of the called terminal is counted in real time, and the number of forwards of the called terminal within a predetermined time period is effectively controlled; the current switching frequency exceeds the setting.
  • the HLR When the forwarding frequency threshold is reached, the HLR returns a reject response message to the MSC, rejects the corresponding forwarding, does not allow the calling terminal to connect with the called terminal number, and sends the forward trap alarm information to the alarm platform to avoid the forward trap. Occurs to enhance the resistance and operational efficiency of the network system, and enhance the image of the operator and customer satisfaction.
  • step S101 includes the following steps:
  • Step S1011 The HLR acquires the called terminal number from the call request message.
  • Step S1012 The HLR detects the number of forwards of the called terminal number within the current predetermined time period.
  • Step S1013 The HLR calculates a forwarding frequency of the called terminal in the current predetermined time period according to the number of forwarded calls.
  • the forwarding frequency includes the domestic forwarding frequency and/or the international forwarding frequency;
  • the forwarding type includes conditional forwarding and/or unconditional forwarding, which is convenient for the operator to set according to the operation strategy.
  • the set forward frequency threshold and the check interval may also be set according to requirements.
  • the forward frequency threshold may also be set according to the type of the forward frequency.
  • the check interval may be set to 10 minutes.
  • Conditional domestic forward frequency threshold, conditional international forward frequency threshold, unconditional domestic forward frequency threshold and unconditional international forward frequency threshold are 10 times / minute; can also set forward trap alarm level, such as It is a secondary alarm.
  • the calling terminal user A calls the called terminal user B, and the user B opens the conditional domestic forwarding as an example to describe in detail the method flow of avoiding the forwarding trap in this embodiment, and the other types of forwarding types avoid the forward trap.
  • the method flow is similar:
  • the conditional domestic forwarding process of the called terminal user B includes the following steps: Step 301: User A calls user B, and the HLR receives the call request message, and user B shuts down.
  • Step 303 The HLR sends a forward trap alarm message to the alarm platform.
  • the alarm information includes the IMSI of the user B, the user number, the current location information of the user B, and the forwarding information.
  • the HLR adds 1 to the domestic forwarding number within the current predetermined time period, and returns a response message allowing the forwarding to the MSC, allowing the user A A forward occurs.
  • the HLR obtains the roaming number of user B from the VLR after receiving the call request message, and the other processes are similar to the above.
  • this embodiment solves the problem of the forward trap by using the existing standard service message (3GPP, 3GPP2) process, effectively enhances the resistance and operation efficiency of the network system, and improves the image and customer satisfaction of the operator. And it also promotes the security of mobile networks.
  • 3GPP 3GPP2
  • an embodiment of the present invention provides an HLR for avoiding a forward trap based on the N07 network structure shown in FIG. 1.
  • the device includes: an obtaining module 501 and a sending module 502, where:
  • the obtaining module 501 is configured to: after receiving the call request message initiated by the MSC, the HLR obtains a forwarding frequency of the called terminal in the current predetermined time period;
  • the sending module 502 is configured to: when the current switching frequency exceeds the set forwarding frequency threshold, return a reject response message to the MSC;
  • the sending module 502 is further configured to send the forward trap alarm information to the alarm platform after returning the reject response message to the MSC when the current switching frequency exceeds the set forwarding frequency threshold.
  • the network management system notifies the user by means of alarm bell, SMS or telephone.
  • the network management system notifies the user by means of alarm bell, SMS or telephone.
  • the alarm information includes: the called terminal IMSI, the called terminal number, the location information of the called terminal, and the forwarding information.
  • the calling terminal When the calling terminal calls the called terminal, the calling terminal sends a call request to the core network element MSC where the called terminal is located, where the call request carries the called terminal number, and the MSC according to the call request initiated by the calling terminal
  • the HLR initiates a call request message, and the receiving module 501 of the HLR receives the call request message initiated by the MSC, so as to establish a call with the called terminal for the calling terminal or when the called number is signed unconditionally or conditionally forwarded, the calling party
  • the terminal establishes a call with the forwarded number of the called terminal.
  • the acquiring module 501 of the HLR acquires the called terminal number in the call request message, and obtains the forwarding frequency of the called terminal within the current predetermined time period, and the current switching frequency does not exceed the setting.
  • the forward frequency threshold is set, the calling terminal is allowed to connect with the called terminal number.
  • the HLR adds the number of forwards of the called terminal within the current predetermined time period, and the real-time statistics of the called terminal is forwarded.
  • the number of times, the number of forwards of the called terminal within a predetermined time period is effectively controlled; when the current switching frequency exceeds the set forwarding frequency threshold, the HLR rejects the corresponding forwarding, and the sending module 502 returns a rejection response message to the MSC to prohibit the primary
  • the terminal is forwarded, the calling terminal is not allowed to connect with the called terminal number, and the forward trap alarm information is sent to the alarm platform to avoid the occurrence of the forward trap, thereby enhancing the resistance and operation efficiency of the network system, and improving the operation.
  • the obtaining module 501 further includes: an obtaining unit 5011, a detecting unit 5012, and a calculating unit 5013, where:
  • the obtaining unit 5011 is configured to obtain the called terminal number from the call request message.
  • the detecting unit 5012 is configured to detect a number of forwards of the called terminal number within a current predetermined time period
  • the calculating unit 5013 is configured to calculate, according to the number of forwarded calls, the current time period of the called terminal Forward frequency.
  • the forwarding frequency includes the domestic forwarding frequency and/or the international forwarding frequency;
  • the forwarding type includes conditional forwarding and/or unconditional forwarding, which is convenient for the operator to set according to the operation strategy.
  • the set forward frequency threshold and the check interval may also be set according to requirements.
  • the forward frequency threshold may also be set according to the type of the forward frequency.
  • the check interval may be set to 10 minutes.
  • Conditional domestic forward frequency threshold, conditional international forward frequency threshold, unconditional domestic forward frequency threshold and unconditional international forward frequency threshold are 10 times / minute; can also set forward trap alarm level, such as It is a secondary alarm.
  • the calculating unit 5013 is further configured to: when the current switching frequency is less than the set forwarding frequency threshold, increase the number of forwards of the called terminal within the current predetermined time period by one;
  • the sending module 502 is further configured to return an allow forward response message to the MSC when the current switching frequency is less than the set forwarding frequency threshold.
  • the present invention is a system for avoiding a forward trap, the system comprising an HLR 701 and an MSC 702, wherein:
  • the HLR 701 is configured to: when the calling terminal calls the called terminal, receive a call request message initiated by the MSC 702; the call request message carries the called terminal number; and obtains a forwarding frequency of the called terminal within the current predetermined time period; When the switching frequency exceeds the set forwarding frequency threshold, the HLR 701 returns a rejection response message to the MSC 702 to prohibit the calling terminal from forwarding;
  • the MSC 702 is configured to: when the calling terminal calls the called terminal, initiate a call request message to the HLR 701; and when the current switching frequency exceeds the set forwarding frequency threshold, receive the reject response message returned by the HLR 701, prohibiting the calling party The terminal has a forward.
  • the HLR 701 may also send the forward trap alarm information to the alarm platform after returning the reject response message to the MSC 702.
  • the HLR 701 may be the HLR described in the above embodiment.
  • the method for avoiding the forward trap, the HLR and the system compare the forwarding frequency of the called terminal within the predetermined time period with the set forwarding frequency threshold by the core network element HLR, and the current switching frequency exceeds
  • the HLR prohibits the calling terminal from forwarding forward through the MSC, and sends the forward trap alarm information to the alarm platform, which effectively limits the number of forwards per user within a predetermined time period through the system level configuration. , avoiding the occurrence of forward traps, thus avoiding the loss of individuals and operators.
  • the present invention utilizes the existing standard service message (3GPP, 3GPP2) process to solve the problem of the forward trap, effectively enhances the resistance and operation efficiency of the network system, and provides a not only for countries and regions with more forward traps.
  • 3GPP standard service message
  • the discovery of forward traps and the avoidance of forward traps also provide operators with an operational strategy that enhances the operator's image and customer satisfaction, and promotes the security of mobile networks.
  • the operator can also set the forwarding frequency according to its own operating strategy, such as the domestic forwarding frequency and the international forwarding frequency.

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

Abstract

La présente invention se rapporte à un procédé, à un HLR et à un système adaptés pour éviter de transférer un piège. Le procédé selon l'invention comprend les étapes suivantes : un HLR reçoit un message de demande de communication envoyé par un MSC, et il acquiert une fréquence de transfert d'un terminal appelé, à l'intérieur d'une période de temps actuelle prédéterminée ; ensuite, quand la fréquence de transfert dépasse une valeur de seuil de fréquence de transfert définie, le HLR renvoie, au MSC, un message de réponse signifiant un refus. Ceci a pour but d'empêcher le transfert d'un terminal appelant et d'envoyer par ailleurs des données de mise en garde de transfert de piège à une plate-forme de mise en garde. Selon la présente invention, le nombre de transferts de chaque abonné à l'intérieur de la période de temps prédéterminée est effectivement limité grâce à la configuration de niveau système du HLR. De cette manière, l'éventualité de transférer un piège est évitée. Ceci renforce la résistance et l'efficacité de fonctionnement d'un système de réseau. D'autre part, ceci : évite la perte d'individus et d'opérateurs ; améliore l'image des opérateurs ainsi que la satisfaction client ; et renforce la sécurité du réseau mobile.
PCT/CN2012/071279 2011-02-24 2012-02-17 Procédé, hlr et système pour éviter de transférer un piège WO2012113310A1 (fr)

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Application Number Priority Date Filing Date Title
CN201110044989.2A CN102104851B (zh) 2011-02-24 2011-02-24 避免前转陷阱的方法、hlr及系统
CN201110044989.2 2011-02-24

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Publication number Priority date Publication date Assignee Title
CN102104851B (zh) * 2011-02-24 2015-09-16 中兴通讯股份有限公司 避免前转陷阱的方法、hlr及系统
CN104105079B (zh) * 2013-04-15 2017-10-27 中国移动通信集团河南有限公司 一种呼叫转移方法及装置

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CN101646147A (zh) * 2009-09-11 2010-02-10 中兴通讯股份有限公司 越过呼叫前转次数限制的方法及移动交换中心仿真实体
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CN101043751B (zh) * 2007-03-28 2010-06-09 华为技术有限公司 限制呼叫转移的方法及系统
KR101014963B1 (ko) * 2008-10-07 2011-02-15 주식회사 케이티 지능망 호 처리 장치 및 방법

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CN1210657A (zh) * 1996-02-06 1999-03-10 诺基亚电信公司 限制移动通信系统中寻呼负载的方法和设备
CN101854613A (zh) * 2009-03-31 2010-10-06 国际商业机器公司 回叫欺诈检测方法和装置
CN101646147A (zh) * 2009-09-11 2010-02-10 中兴通讯股份有限公司 越过呼叫前转次数限制的方法及移动交换中心仿真实体
CN102104851A (zh) * 2011-02-24 2011-06-22 中兴通讯股份有限公司 避免前转陷阱的方法、hlr及系统

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CN102104851A (zh) 2011-06-22

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