Method for transmitting notification signal and mobile station
Abstract
This record has no abstract on file.
Term
Projected expiry 20 February 2029.
- Priority
- Filed
- Granted
- Today
- Projected expiry
11 claims: 6 independent, 5 dependent
- 1ネットワークノードが、複数の移動局に対して通知信号を送信する通知信号送信方法であって、 前記複数の移動局の各々が、自身で管理している第1セキュリティ情報と、受信した第1通知信号に含まれる第2セキュリティ情報とを比較することによって、該第1通知信号の正当性を検証する工程と、 前記複数の移動局の各々が、前記第1通知信号の正当性の検証に成功した場合、該第1通知信号に対応する出力を行う工程とを 有し、 前記第1通知信号は、無線アクセス技術を識別する無線アクセス技術識別子を含んでおり、 前記複数の移動局の各々は、前記第1通知信号に含まれる前記無線アクセス技術識別子によって識別される無線アクセス技術を用いて、前記第1通知信号に対応する第2通知信号を受信 することを特徴とする通知信号送信方法。
- 2前記複数の移動局の各々は、前記検証の要否を示す検証要否識別子に応じて、該検証を行うか否かについて判定することを特徴とする請求項1に記載の通知信号送信方法。
- 3前記複数の移動局の各々は、前記第1セキュリティ情報を管理しているか否かに応じて、前記検証を行うか否かについて判定することを特徴とする請求項1に記載の通知信号送信方法。
- 4前記ネットワークノードは、1つのページングチャネルを介して、複数の第1通知信号を送信し、 前記移動局は、前記複数の第1通知信号の中から、前記検証に成功した第1通知信号に対応する出力を行うことを特徴とする請求項1に記載の通知信号送信方法。
- 5前記第1通知信号に含まれる前記第2セキュリティ情報は、所定タイミングで、前記ネットワークノードによって更新されることを特徴とする請求項1に記載の通知信号送信方法。
- 6前記移動局の各々によって管理されている前記第1セキュリティ情報は、所定タイミングで、或いは、前記ネットワークノードからの通知によって、更新されることを特徴とする請求項1に記載の通知信号送信方法。
- 7ネットワークノードが複数の移動局に対して通知信号を送信するように構成されている移動通信システムで用いられる移動局であって、 自身で管理している第1セキュリティ情報と、受信した第1通知信号に含まれる第2セキュリティ情報とを比較することによって、該第1通知信号の正当性を検証するように構成されている検証部と、 前記第1通知信号の正当性の検証に成功した場合、該第1通知信号に対応する出力を行うように構成されている出力部とを具備 し、 前記第1通知信号は、無線アクセス技術を識別する無線アクセス技術識別子を含んでおり、 前記第1通知信号に含まれる前記無線アクセス技術識別子によって識別される無線アクセス技術を用いて、前記第1通知信号に対応する第2通知信号を受信するように構成されている受信部をさらに具備 することを特徴とする移動局。
- 8前記検証部は、前記検証の要否を示す検証要否識別子に応じて、該検証を行うか否かについて判定するように構成されていることを特徴とする 請求項7 に記載の移動局。
- 9前記検証部は、前記第1セキュリティ情報を管理しているか否かに応じて、前記検証を行うか否かについて判定するように構成されていることを特徴とする 請求項7 に記載の移動局。
- 10前記ネットワークノードが、1つのページングチャネルを介して、複数の第1通知信号を送信している場合、前記出力部は、該複数の第1通知信号の中から、前記検証に成功した第1通知信号に対応する出力を行うように構成されていることを特徴とする 請求項7 に記載の移動局。
- 11前記第1セキュリティ情報は、所定タイミングで、或いは、前記ネットワークノードからの通知によって、更新されるように構成されていることを特徴とする 請求項7 に記載の移動局。
Independent claims11
85 paragraphs, as filed
The present invention relates to a notification signal transmission method and a mobile station in which a network node transmits a notification signal to a plurality of mobile stations.
3GPP is studying "ETWS (Earthquake and Tsunami Warning System)" for distributing emergency information such as earthquake information and tsunami information as a subset of "PWS (Public Warning System)".
As shown in FIG. 7, such an ETWS includes a network node 1 (including, for example, a radio base station eNB and the like), an emergency information distribution server 3, and a mobile station UE.
As shown in FIG. 8, in such ETWS, in step S1001, the emergency information distribution server 3 transmits "Disaster Notification (emergency information)" notifying that a disaster has occurred to the network node 1.
In step S1002, the network node 1 notifies a plurality of mobile station UEs that such a disaster has occurred by "First Notification".
When each of the plurality of mobile station UEs receives the "First Notification", it outputs the output (buzzer output, alarm output, display display, etc.) corresponding to the "First Notification".
In step S1003, the network node 1 notifies the plurality of mobile station UEs of the detailed information regarding the above-mentioned disaster by "Second Notification".
Here, each of the plurality of mobile station UEs receives the "Second Notification" based on the information specified by the above-mentioned "First Notification", and receives the detailed information notified by the "Second Notification". , Show on the display.
In the above-mentioned ETWS, threats such as transmission of "Fake First Notification" by an unauthorized radio base station can be considered, so the above-mentioned "First Notification" is transmitted to the mobile station by secure communication. There is a need to.
In the EWTS configuration shown in Fig. 7, it can be assumed that the interface between the network node 1 and the emergency information distribution server sends "Disaster Notification" by secure communication using a dedicated line or IPsec. The wireless interface between the network node 1 and the mobile station UE has a problem that "First Notification" cannot be transmitted by security communication.
That is, at the time when the "First Notification" is transmitted, the wireless base station eNB and the mobile station have not been established because the wireless link for security communication has not been established between the network node 1 and the mobile station UE. The wireless interface to and from the UE cannot send a "First Notification" via security communication.
Further, even if a security communication link is established between the network node 1 such as the radio base station eNB, the switching station MME, or the gateway device S-GW and the mobile station UE, a plurality of mobile station UEs However, since it is necessary to determine whether or not the same "First Notification" received is the "First Notification" addressed to itself, the network uses security information individually established for each mobile station UE for security. Cannot be applied.
Therefore, the present invention has been made in view of the above-mentioned problems, and provides a notification signal transmission method and a mobile station capable of transmitting a notification signal by secure communication to a plurality of mobile stations. The purpose.
The first feature of the present invention is a notification signal transmission method in which a network node transmits a notification signal to a plurality of mobile stations, and each of the plurality of mobile stations manages the notification signal by itself. The step of verifying the validity of the first notification signal by comparing the security information with the second security information included in the received first notification signal, and each of the plurality of mobile stations is the first. When the validity of the notification signal is successfully verified, the gist is to have a step of outputting the output corresponding to the first notification signal.
In the first feature of the present invention, the first notification signal includes a radio access technology identifier that identifies a radio access technology, and each of the plurality of mobile stations has the radio included in the first notification signal. The information corresponding to the first notification signal may be received by using the wireless access technology identified by the access technology identifier.
In the first feature of the present invention, each of the plurality of mobile stations may determine whether or not to perform the verification according to the verification necessity identifier indicating the necessity of the verification.
In the first feature of the present invention, each of the plurality of mobile stations may determine whether or not to perform the verification depending on whether or not the first security information is managed.
In the first feature of the present invention, the network node transmits a plurality of first notification signals via one paging channel, and the mobile station performs the verification from the plurality of first notification signals. The output corresponding to the successful first notification signal may be performed.
In the first feature of the present invention, the second security information included in the first notification signal may be updated by the network node at a predetermined timing.
In the first feature of the present invention, the first security information managed by each of the mobile stations may be updated at a predetermined timing or by notification from the network node.
In the first feature of the present invention, when the first notification signal includes a communication identifier indicating the existence of specific communication to be transmitted to each of the mobile stations, the second security information is included in the communication identifier. May be included in.
In the first feature of the present invention, the second security information may be included in the area of the first notification signal indicating the reason why the first notification signal is transmitted.
The second feature of the present invention is a mobile station used in a mobile communication system in which a network node is configured to transmit a notification signal to a plurality of mobile stations, and the first is managed by itself. A verification unit configured to verify the validity of the first notification signal by comparing the security information with the second security information included in the received first notification signal, and the first notification signal. If the verification of the validity of the above is successful, the gist is to include an output unit configured to output the output corresponding to the first notification signal.
In the second feature of the present invention, the first notification signal includes a radio access technology identifier that identifies the radio access technology, and the radio access identified by the radio access technology identifier included in the first notification signal. The technology may be used to include a receiver configured to receive information corresponding to the first notification signal.
In the second feature of the present invention, the verification unit may be configured to determine whether or not to perform the verification according to the verification necessity identifier indicating the necessity of the verification.
In the second feature of the present invention, the verification unit may be configured to determine whether or not to perform the verification depending on whether or not the first security information is managed.
In the second feature of the present invention, when the network node transmits a plurality of first notification signals via one paging channel, the output unit is selected from the plurality of first notification signals. , May be configured to output corresponding to the first notification signal that has succeeded in the verification.
In the second feature of the present invention, the first security information may be configured to be updated at a predetermined timing or by a notification from the network node.
<figref num="1">FIG. 1 is a functional block diagram of a mobile station according to the first embodiment of the present invention.</figref><figref num="2">FIG. 2 is a diagram for explaining "First Notification" transmitted by the network node according to the first embodiment of the present invention.</figref><figref num="3">FIG. 3 is a diagram for explaining the verification performed by the mobile station according to the first embodiment of the present invention.</figref><figref num="4">FIG. 4 is a diagram for explaining the verification performed by the mobile station according to the first embodiment of the present invention.</figref><figref num="5">FIG. 5 is a flowchart for explaining the operation of the mobile station according to the first embodiment of the present invention.</figref><figref num="6">FIG. 6 is a flowchart for explaining the operation of the mobile station according to the first embodiment of the present invention.</figref><figref num="7">FIG. 7 is an overall configuration diagram of EWTS.</figref><figref num="8">FIG. 8 is a sequence diagram for explaining the operation of transmitting emergency information in EWTS.</figref>
(Structure of Mobile Communication System According to First Embodiment of the Present Invention) The configuration of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
The mobile communication system according to the first embodiment of the present invention has the same configuration as the ETWS shown in FIG. 7, and the network node 1 sends a notification signal (for example, emergency information) to a plurality of mobile station UEs. ) Is configured to be sent.
The present invention relates to an LTE (Long Term Evolution) mobile communication system, a W-CDMA (Wideband-Code Division Multiple Access) mobile communication system, a 3GPP2 mobile communication system, and UMTS (Universal Mobile Telecommunications). It can be applied to any type of mobile communication system such as a System) type mobile communication system and a GSM (Global System for Mobile Communications) type mobile communication system.
For example, when the present invention is used in an LTE mobile communication system, the network node 1 is a radio base station eNB, and when the present invention is used in a W-CDMA mobile communication system. Network node 1 is the radio control station RNC.
As shown in FIG. 1, the mobile station UE according to the present embodiment includes a first notification signal receiving unit 11, a security information management unit 12, a verification unit 13, an output unit 14, and a second notification signal receiving unit 15. And are equipped.
The first notification signal receiving unit 11 is configured to receive the "First Notification" transmitted by the network node 1.
For example, the first notification signal receiving unit 11 may be configured to receive "First Notification (first notification signal)" via a paging channel (PCH), or notification information (for example,). , SIB10 / SIB11), and may be configured to receive a "First Notification".
As shown in Fig. 2, such "First Notification" is composed of "MCC (Mobile Country Code)", "MNC (Mobile Network Code)" and "MSIN (Mobile Subscriber Identification Number)". It is equipped with the "IMSI (International Mobile Subscriber Identity)".
Basically, "IMSI" is an identifier for globally identifying a mobile station UE, but a specific communication to be transmitted to each of a plurality of mobile station UEs (for example, an emergency such as earthquake information or tsunami information). It also serves as a communication identifier indicating the existence of information).
For example, in "IMSI", which is set to "First Notification" for notifying emergency communication and serves as a communication identifier indicating the existence of emergency information, "MCC" is "901". Is set, and "MNC" is set to "08".
In addition, "MS IN" in such "IMSI" includes, for example, "Disaster type (2 bits)", "RAT info (2 bits)", "Frequency (14 bits)", and "Channel Type (1 bit)". ) , Security on / off bit (1 bit) , Security bit (second security information) , etc. are set.
Here, "Disaster type" indicates the type of disaster such as an earthquake, tsunami, or terrorism, and "RAT info" is a wireless access technology (GSM method, UMTS method, etc.) used for transmitting "Second Notification". LTE system, 3GPP2 system, etc.).
In addition, "Frequency" indicates the frequency used for transmission of "Second Notification", and "Channel Type" indicates the type of channel used for transmission of "Second Notification" (CBS channel or MSMS channel). Is shown.
The "Security on / off bit" indicates the necessity of verifying the validity of the "First Notification" by the mobile station UE (that is, the "First Notification" is a security bit (that is, the first notification signal). It indicates whether or not the second security information) is set).
The "security bit (second security information)" included in the "First Notification" is configured to be updated by the network node 1 at a predetermined timing.
In addition, a part of the information contained in the "MSIN" of the above-mentioned "IMSI" (for example, "security bit (second security information)") is the relevant "First Notification" in the "First Notification". It may be included in the "Paging Cause", which is an area indicating the reason why the "First Notification" is being transmitted.
The security information management unit 12 is configured to manage security information (first security information).
Specifically, the security information management unit 12 receives security information (TAU: Tracking Area Update processing) from the network node 1 at the time of location registration processing (Attach processing) or location registration update processing (TAU: Tracking Area Update processing) by the mobile station UE. It is configured to get the first security information).
The security information management unit 12 is configured to update such security information (first security information) at a predetermined timing (for example, periodically) or by notification from the network node 1.
The verification unit 13 is included in the security information (first security information) managed by the security information management unit 12 and the "First Notification" received by the first notification signal receiving unit 11. It is configured to verify the validity of such a "First Notification" by comparing it with a "security bit".
For example, as shown in FIG. 3, the verification unit 13 has the security information (first security information) managed by the security information management unit 12 and the "security bit" included in the "First Notification". (Second security information) may be configured to determine that the verification was successful.
Further, as shown in FIG. 4, the verification unit 13 has a "security bit (first notification signal)" included in the security information (first security information) managed by the security information management unit 12 and the "First Notification". The security bit obtained by inputting information other than "second security information" (non-security bit) and a predetermined key (for example, a fixed value distributed in advance) into a predetermined security function, and "First". If the "security bit (second security information)" included in the "Notification (first notification signal)" matches, it may be configured to determine that the verification has been successful.
Here, the verification unit 13 responds to the "Security on / off bit (verification necessity identifier)" included in the "First Notification" by the mobile station UE. It may be configured to determine whether or not to verify the validity of the "notification signal)".
That is, the verification unit 13 uses the mobile station UE to perform the "Security on / off bit" included in the "First Notification" only when the "Security on / off bit (verification necessity identifier)" is "ON". It may be configured to determine that the validity of the "First Notification" should be verified.
In addition, the verification unit 13 is valid for the "First Notification" by the mobile station UE, depending on whether or not the security information (first security information) is managed by the security information management unit 12. It may be configured to determine whether or not to verify the sex.
That is, the verification unit 13 determines the validity of the "First Notification" by the mobile station UE only when the security information (first security information) is managed by the security information management unit 12. It may be configured to determine that verification should be performed.
When the verification unit 13 succeeds in verifying the validity of the "First Notification", the output unit 14 outputs the output (buzzer output, alarm output, etc.) corresponding to the "First Notification (first notification signal)". It is configured to perform display display, etc.).
When multiple "First Notifications" are transmitted by the network node via one paging channel, the output unit 14 is included in the plurality of "First Notifications". Therefore, it may be configured to output corresponding to the "First Notification" that has succeeded in the above verification.
In addition, the output unit 14 provides detailed information (Second Notification (second notification signal) corresponding to First Notification (first notification signal)) of the emergency information received by the second notification signal receiving unit 15. It is configured to show on the display.
For example, as the detailed information (second notification signal), information indicating the seismic intensity of the earthquake, the evacuation site, the distribution time and place of food, etc. is assumed. The detailed information may be a small amount of text data or a large amount of data.
When the above-mentioned verification is successful, the second notification signal receiving unit 15 is based on the above-mentioned detailed information (second notification signal) based on the information specified by the above-mentioned "First Notification". ) Is configured to be received. For example, the second notification signal receiving unit 15 is specified by the "Channel Type", "Frequency", etc. included in the above-mentioned "First Notification" when the above-mentioned verification is successful. It may be configured to receive the above-mentioned detailed information (second notification signal) via the channel.
Further, when the above verification is successful, the second notification signal receiving unit 15 is identified by the "RAT info (wireless access technology identifier)" included in the above "First Notification (first notification signal)". It may be configured to receive the above-mentioned detailed information (second notification signal) by using a wireless access technology (for example, LTE method or the like).
Further, when the above-mentioned verification is successful, the second notification signal receiving unit 15 receives the above-mentioned detailed information (second notification signal) received at the same time as the above-mentioned "First Notification (first notification signal)". It may be configured to do so.
(Operation of the mobile communication system according to the first embodiment of the present invention) The operation of the mobile station UE in the mobile communication system according to the first embodiment of the present invention will be described with reference to FIGS. 5 and 6.
In the first operation, as shown in FIG. 5, in step S101, the mobile station UE receives the First Notification from the network node 1.
For example, in the LTE mobile communication system, the mobile station UE is included in the broadcast information (SIB10 / SIB11) when "True" is set in "ETWS Indication" in the paging signal received via the PCH. You may receive the "First Notification" included as the "ETWS Information".
Further, in the WCDMA mobile communication system, the mobile station UE may receive the "First Notification" included in the paging signal via the PCH.
In step S102, the mobile station UE determines whether or not the Security on / off bit (verification necessity identifier) included in the received First Notification is ON.
Here, the mobile station UE may determine whether or not there is security information in the "First Notification" in the received notification information (SIB10 / SIB11).
If it is "ON (or with security information)", this operation proceeds to step S103, and if it is "OFF (or without security information)", this operation proceeds to step S104.
In step S103, the mobile station UE has "First Notification (" security bit (second security information) "included in the first notification signal paging signal" and "security information (first security information)" managed by itself. And, the mobile station UE verifies the validity of the "First Notification".
If the verification is successful, the operation proceeds to step S104, and if the verification fails, the operation proceeds to step S107.
In step S104, the mobile station UE outputs (for example, a display display such as a flash report of emergency information) corresponding to such First Notification.
The mobile station UE receives the "Second Notification (second notification signal)" corresponding to the "First Notification (first notification signal)" in step S105, and the "Second Notification (second notification signal)" in step S106. The detailed information notified by "" is displayed on the display.
In step S107, the mobile station UE outputs an output indicating that the verification in step S103 has failed.
On the other hand, in the second operation, as shown in FIG. 6, in step S202, the mobile station UE determines whether or not "security information (first security information)" is managed, and manages it. If it is determined, this operation proceeds to step S203, and if it is determined that it is not managed, this operation proceeds to step S204.
The operation of the other steps is the same as the operation of the step in the first operation described above.
(Action / Effect of Mobile Communication System According to First Embodiment of the Present Invention) According to the mobile communication system according to the first embodiment of the present invention, the mobile station UE manages the "security bit (second security information)" included in the "First Notification" and itself. Since it is configured to verify the validity of the "First Notification" based on the "security information (first security information)" that is provided, the first notification signal by secure communication is used. Can be transmitted.
Further, according to the mobile communication system according to the first embodiment of the present invention, since the "security bit (second security information)" is transmitted by the "First Notification (first notification signal)", the emergency information can be obtained. Emergency information can be output in the mobile station UE as soon as it occurs.
Specifically, according to the mobile communication system according to the first embodiment of the present invention, as shown in FIG. 2, the mobile station is about 4 seconds after the transmission of the "First Notification". Emergency information can be output in the UE.
The above-mentioned operations of the mobile station UE and the network node 1 may be performed by hardware, by a software module executed by a processor, or by a combination of both.
Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable ROM), registers, hard disks, and removable disks. Or, it may be provided in an arbitrary format storage medium such as a CD-ROM.
Such a storage medium is connected to the processor so that the processor can read and write information to the storage medium. Further, such a storage medium may be integrated in the processor. Further, such a storage medium and a processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE or the network node 1. Further, such a storage medium and a processor may be provided in the mobile station UE or the network node 1 as discrete components.
Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and modifications without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description of the present specification is for the purpose of exemplification and does not have any limiting meaning to the present invention.
The entire contents of Japanese Patent Application No. 2008-040735 (filed on February 21, 2008) are incorporated in the specification of the present application by reference.
As described above, according to the present invention, it is possible to provide a notification signal transmission method and a mobile station capable of transmitting a notification signal by secure communication to a plurality of mobile stations.
Every citation, both waysCites: the store holds 4 of 5
| Document | Relation | Office | Cited during |
|---|---|---|---|
| WO2007148701A1 | Cites | World Intellectual Property Organization (WIPO) | Examiner |
| JPH11234225A | Cites | Japan | Examiner |
| JP11234225A | Cites | Japan | – |
| WO2007148701A1 | Cites | World Intellectual Property Organization (WIPO) | – |
| Earthquake and Tsunami Warning System Requirements and Solutions (ETWS),3GPP TR23.828 V0.1.0,3GPP,2008年 1月,p.1-16 | Non-patent | – | – |
| NTT DoCoMo,Way forward for ETWS,3GPP TSG-RAN-WG2 Meeting #60bis,2008年 1月,R2-080396,pp.1-4 | Non-patent | – | – |
| Earthquake and Tsunami Warning System(ETWS),3GPP TS22.168 V1.1.0,3GPP,2007年11月,p.1-12 | Non-patent | – | – |
16 members in 10 offices
Priority claims11
| Document | Office | Kind | Date |
|---|---|---|---|
| 2008040735 | Japan | A | |
| 2008040735 | Japan | A | |
| 2008040735 | Japan | – | |
| 2009053075 | Japan | W | |
| 2009053075 | Japan | W | |
| 2009554405 | Japan | A | |
| 2008200840735 | – | – | – |
| 2009053075 | – | – | – |
| JP20080040735 | – | – | – |
| JP20090554405 | – | – | – |
| WO2009JP53075 | – | – | – |
Members16
| Document | Office | Kind | |
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| CA2716510A1 | Canada | A1 | |
| WO2009104757A1 | World Intellectual Property Organization (WIPO) | A1 | |
| MX2010009211A | Mexico | A | |
| EP2252097A1 | European Patent Office (EPO) | A1 | |
| KR20100127772A | Republic of Korea | A | |
| CN101953194A | China | A | |
| US2011105156A1 | United States of America | A1 | |
| JPWO2009104757A1 | Japan | A1 | |
| JP4820448B2This record | Japan | B2 | |
| JP2012044674A | Japan | A | |
| RU2010137739A | Russian Federation | A | |
| JP2012239210A | Japan | A | |
| EP2252097A4 | European Patent Office (EPO) | A4 | |
| US2013079042A1 | United States of America | A1 | |
| RU2507712C2 | Russian Federation | C2 | |
| BRPI0908243A2 | Brazil | A2 |
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Numbers
- Publication
- 4820448
- Publication, DOCDB
- 4820448
- Publication, EPODOC
- JP4820448B
- Application
- 554405
- Application, DOCDB
- 2009554405
- Application, EPODOC
- JP20090554405
Titles2
- Japanese
- 通知信号送信方法及び移動局
- English
- Notification signal transmission method and mobile station
Classification
- CPC, 9
- H04W4/90
- H04M1/665
- H04W12/06
- H04W68/00
- H04W76/50
- H04M1/72421
- H04W12/72
- H04W12/08
- H04W68/02
- IPC, 6
- H04W4 22
- H04W4 06
- H04W72 04
- H04M11 04
- H04M1 00
- H04W4 90