Mobile communication system, mobile communication method, distribution server, radio line control station, and mobile station

a mobile communication system, a mobile communication method, a distribution server, and a radio circuit control office -- and -- Mobile station

Technical field

[0001] The present invention relates to the mobile communication system constituted so that radio equipment may transmit the emergency intelligence transmitted from the distribution server to a mobile station using simultaneous transmissive communication, mobile communication method , a distribution server, a radio circuit control office, and a mobile station.

Background art

[0002] emit by government and municipal offices, a local self-governing body, etc. conventionally -- Was done earthquake information, tsunami information, etc. are urgent Information, it transmits to a mobile station using the simultaneous transmissive communication of CBS (Cell Broadcast Service), MBMS (Multimedia Broadcast/ Multicast Service), etc. -- as It is constituted and the mobile communication system for !Urgent information transmission is known.

[0003] Specifically with power or the mobile communication system for Emergency information transmission, it is, Radio circuit control office RNC is business V about the traffic channel for simultaneous transmissive communication of CTCH (Common Traffic Channel), MTCH (MBMS Traffic Cha nnel), etc., The, movement which is in specific area Above received from terminals, such as government and municipal offices and a local self-governing body, via the distribution server to the office It is constituted so that emergency intelligence may be transmitted, and it is To go.

[0004] It is with the mobile communication system for the conventional emergency intelligence transmission, carrying out and carrying out power, It is constituted so that sender attestation of the emergency intelligence which used !, The, and simultaneous transmissive communication for the mobile station, and was transmitted to it may be performed! sake, The false report by counterfeit emergency intelligence being sent by the inaccurate base transceiver station is Depart. A possibility that raw will be carried out and trust of the sender of emergency intelligence will lose, and the possibility of a receiving person's confusion There was a problem of being.

[0005] (Nonpatent literature 1)

3GPP TS23.041

(Nonpatent literature 2)

3GPP TS23.246

Indication [0006] which is an invention It is there and is the present invention, It is made in view of an above-mentioned subject, simultaneous transmissive communication is used, and it is Urgency. This which prevents spoofing to the sender of emergency intelligence when transmitting sudden information to a mobile station It aims at providing the mobile communication system made possible, a mobile communication method, a distribution server, a radio circuit control office, and a mobile station.

[0007] Notice information (emergency intelligence) to which radio equipment was transmitted from the distribution server to the feature of The 1 of the present invention, Mobile constituted using simultaneous transmissive communication so that it may transmit to a mobile station It is a Trust system and is the above-mentioned distribution server, It is the above-mentioned mobile station about the public key of the distribution server. It receives, the key transmission section constituted is provided so that it may transmit, and it is the above-mentioned radio equipment, above-mentioned Arrangement the above-mentioned notice information transmitted from the Trust server is transmitted to the above-mentioned mobile station -- as -- composition -- providing the notice information transmission section of Being done -- the above-mentioned mobile station, The received above-mentioned notice information is faced. Based on Electronic signature, it is constituted so that it may attest about the validity of the above-mentioned notice information. Let it be a gist to provide the authentication section which is.

[0008] In the feature of The 1 of the present invention, it is the above-mentioned radio equipment, A radio circuit control office and a base transceiver station are included, and it is the above-mentioned notice information transmission section, It is prepared for the above-mentioned base transceiver station, and is the above-mentioned radio machine. The above-mentioned notice information transmission section of a ground office, It is reported that there is mail arrival information to a specific mobile station. Using the channel for carrying out, it is constituted so that the above-mentioned notice information may be transmitted, and it describes above. The above-mentioned key transmission section of a distribution server, The traffic channel for simultaneous transmissive communication is used, and it is the above-mentioned Arrangement. It may be constituted so that the public key of a Trust server may be transmitted to the above-mentioned mobile station.

[0009] In the feature of The 1 of the present invention, it is the above-mentioned radio equipment, A radio circuit control office and a base transceiver station are included, and it is the above-mentioned notice information transmission section, It is provided in the above-mentioned radio circuit control office, and is nothing above-mentioned. The above-mentioned notice information transmission section of a line circuit control office, This which has mail arrival information to a specific mobile station being constituted using the channel for notifying, so that the above-mentioned notice information may be transmitted -- The above-mentioned key transmission section of Ri and the above-mentioned distribution server, It is constituted so that the public key of and the above-mentioned distribution server may be transmitted to the above-mentioned mobile station using the traffic channel for simultaneous transmissive communication, and it is also Go. It is good.

[0010] In the feature of The 1 of the present invention, it is the above-mentioned distribution server, the above-mentioned electronic signature which was constituted so that the electronic signature to the above-mentioned notice information might be generated, and was generated using , the Electronic signature generation part, and the traffic channel for simultaneous transmissive communication is transmitted to the above-mentioned mobile station -- as -- composition -- even if it provides Have been and a Electronic signature transmission section --

[0011] In the feature of The 1 of the present invention, it is the above-mentioned distribution server, It is constituted so that the electronic signature to the above-mentioned notice information may be generated, and they are and a Electronic signature generation part, It is a front about the generated above-mentioned electronic signature. The electronic signature transmission section constituted so that it may transmit to an account radio circuit control office is provided. It carries out and is the above-mentioned notice information transmission section of the above-mentioned radio circuit control office, as opposed to a specific mobile station -- Incoming information using the channel for reporting that there is news -- the above-mentioned notice information -- the above-mentioned electronic office being constituted so that a name may be transmitted to the above-mentioned mobile station -- -- The -- .

[0012] In the feature of The 1 of the present invention, it is the above-mentioned radio circuit control office, It is constituted so that the electronic signature to the received above-mentioned notice information may be generated, and Electronic signature generation part is provided, and it is nothing above-mentioned. The above-mentioned notice information transmission section of a line circuit control office, This which has mail arrival information to a specific mobile station using the channel for notifying -- the above-mentioned notice information -- the above-mentioned electronic signature -- front -- being constituted [ ] so that it may transmit to an account mobile station -- The --

[0013] The of the present invention Radio equipment is a mobile communication method which transmits notice information transmitted from distribution Sano to a mobile station using simultaneous transmissive communication, and the feature of 2 comprises the following: The above-mentioned distribution sir Process to which Ba transmits a public key of the distribution server to the above-mentioned mobile station The above-mentioned Wireless device is Send to the above-mentioned mobile station about the above-mentioned notice information transmitted from the above-mentioned distribution server. Step Before the above-mentioned mobile station is based on an electronic signature to the received above-mentioned notice information Process attested about the validity of notice information of an account.

[0014] The of the present invention Using simultaneous transmissive communication, the feature of 3 is constituted so that notice information may be transmitted to a mobile station via radio equipment. It is a Distribution server and comprises the following: The public of the above-mentioned distribution server Key transmission section constituted so that unlocking may be transmitted to the above-mentioned mobile station The above-mentioned Notification information Notice information transmission section constituted so that news may be transmitted to the above-mentioned radio equipment Above It is constituted so that an electronic signature to notice information may be generated. Electronic signature generation part Raw. It is constituted so that the accomplished above-mentioned electronic signature may be transmitted to the above-mentioned radio equipment. Electronic office Name transmission section

[0015] Notice information to which the feature of The 4 of the present invention was transmitted from distribution Sano, It is the radio circuit control office constituted using simultaneous transmissive communication so that it may transmit to a mobile station, It is specific. The channel for reporting that there is mail arrival information to a mobile station is used, and it is the above-mentioned distribution. About the electronic signature to the above-mentioned notice information received from the server, and the notice information, it is the above-mentioned movement. It is a gist about providing the notice information transmission section constituted so that it may transmit to an office. It carries out.

[0016] The of the present invention The feature of 5 is a radio circuit control office constituted so that notice information transmitted from distribution Sano may be transmitted to a mobile station using simultaneous transmissive communication, and comprises the following: Above It is constituted so that an electronic signature to the above-mentioned notice information received from a distribution server may be generated. ing electronic signature generation part It was which reports that there is mail arrival information to a specific mobile station. Because -- the above-mentioned notice information received from the above-mentioned distribution server using a channel -- and it was generated Are constituted so that the above-mentioned electronic signature may be transmitted to the above-mentioned mobile station. Whistle notification information transmission Part

[0017] It is constituted so that the notice information transmitted using simultaneous transmissive communication may be received, and the feature of The 6 of the present invention is !, It is Through about the control channel for being Mobile station and starting the above-mentioned simultaneous transmissive communication. It is constituted so that it may carry out and the above-mentioned notice information may be received, and they are ! and a Notice information receiving part, Before receiving Based on the electronic signature to the notice information of an account, it attests about the validity of the above-mentioned notice information. It is based on the authentication section constituted and the above-mentioned authentication result so that it may carry out, and it is a table of the above-mentioned notice information. They are a gist and To about being constituted so that Prescription method may be controlled, and providing and Notice information display sections. To.

[0018] In the feature of The 6 of the present invention, it is constituted so that the above-mentioned electronic signature may be received via the traffic channel for the above-mentioned simultaneous transmissive communication, and Electronic signature receiving part is provided, The above-mentioned indicator The above-mentioned authentication result after displaying the above-mentioned notice information received via the above-mentioned control channel When negative, it is constituted so that it may indicate that the above-mentioned notice information was an error. Me me is also good.

[0019] In the feature of The 6 of the present invention, it is constituted so that the above-mentioned electronic signature may be received via the control channel for starting the above-mentioned simultaneous transmissive communication, and Electronic signature receiving part is provided, the above When the above-mentioned authentication result is negative, receive an indicator via the above-mentioned control channel. display [ ] the notice information of Mentioned -- being constituted [ ] like -- The --

Brief explanation of the drawings

[0020] [-- figure 1] -- figure [figure 2] figure -- 2 is a functional block diagram of the distribution server concerning the embodiment of The 1 of the present invention. [ which is the whole mobile communication system lineblock diagram which requires 1 for the embodiment of The 1 of the present invention ]

[figure 3] a figure -- functional block diagram of base transceiver station Node B which requires 3 for the embodiment of The 1 of the present invention it is .

[figure 4] It is a functional block diagram of mobile station UE which requires Drawing 4 for the embodiment of The 1 of the present invention.

[figure 5] An example of the display screen in mobile station UE which requires Drawing 5 for the embodiment of The 1 of the present invention It is a shown figure.

[figure 6] In the mobile communication system which requires Drawing 6 for the embodiment of The 1 of the present invention, it is emergency intelligence. It is a sequence figure showing the operation which transmits.

[figure 7] Functional block of radio circuit control office RNC which requires Drawing 7 for the embodiment of The 2 of the present invention It is a figure.

[figure 8] In the mobile communication system which requires Drawing 8 for the embodiment of The 2 of the present invention, it is emergency intelligence. It is a sequence figure showing the operation which transmits.

[figure 9] Functional block of radio circuit control office RNC which requires Drawing 9 for the embodiment of The 3 of the present invention It is a figure.

[figure 10] Generate by radio circuit control office RNC which requires Drawing 10 for the embodiment of The 3 of the present invention. It is a figure showing an example of the composition of PCCH or MCCH carried out.

[figure 11] In the mobile communication system which requires Drawing 11 for the embodiment of The 3 of the present invention, it is urgent Sentiment. It is a sequence figure showing the operation which transmits news.

[figure 12] In the mobile communication system which requires Drawing 12 for the embodiment of The 4 of the present invention, it is urgent Sentiment. It is a sequence figure showing the operation which transmits news.

The best form for inventing

[0021] (Mobile communication system concerning the embodiment of The 1 of the present invention)

Drawing 1 thru/or a figure -- composition of the mobile communication system applied to the embodiment of The 1 of the present invention with reference to 5 about -- it explains.

[0022] The mobile communication system concerning this embodiment, Radio equipment (radio circuit control office RNC and radio base station Node B), It is a kind of the notice information transmitted from distribution server 10. "it is constituted so that urgent Sentiment news (emit by government and municipal offices, a local self-governing body, etc. Was done earthquake information, tsunami information, etc.) J may be transmitted to mobile station UE using the news communications (CBS, MBMS, etc.), and it is To.

[0023] concrete -- a figure -- the mobile communication system applied to this embodiment as shown in 1, Distribution sir Ba, a plurality of radio circuit control office RNC # 1 and # 2, a plurality of base transceiver station Node B # 11 and # 12, and a plurality of mobile station UE # 1 and # 2 are provided.

[0024] in addition -- explanation -- for convenience -- a figure -- power which indicated two at a time in the example of 1 about radio circuit control office RNC, base transceiver station Node B, and mobile station UE until it says -- non-Invention -- these -- Two or more devices can possess and it can apply also to the example of a and To case.

[0025] Distribution server 10 functions as CBC or (Cell Broadcast Center) BM-SC. It is a thing, the case where events, such as an earthquake and tsunami, occur -- government and municipal offices, local self-governing body, etc. therefore, emit -- being constituted so that emergency intelligence, such as Was done earthquake information and tsunami information, may be received and this emergency intelligence may be transmitted to predetermined radio circuit control office RNC -- and To.

[0026] Specifically, distribution servers 10 are key updating section 11, key transmission section 12, and emergency intelligence receiving part 1. 3, electronic signature generation part 14, electronic signature transmission section 15, and emergency intelligence transmission section 16 are provided.

[0027] Key updating section 11 is predetermined timing, and it is constituted so that the public key and secret key of distribution server 10 may be updated. key updating section 11 is constituted [ ] so that the public key and secret key of Distribution The - Ba 10 may be updated, whenever it distributes emergency intelligence -- The -- ,

[0028] Key transmission section 12 is constituted so that the public key of distribution server 10 may be transmitted to mobile station UE.

[0029] Specifically, key transmission section 12 is, CBS or MBMS -- using "CTCH" (Common Traffic Channel) or "MTCH" (MBMS Traffi c Channel) which is a traffic channel of business (simultaneous transmissive communication) the public key of distribution server 10 is transmitted to mobile station UE It is constituted by obtaining.

[0030] Emergency intelligence receiving part 13 comprises government and municipal offices, a local self-governing body, etc. so that the distribution demand of emergency intelligence, such as earthquake information and tsunami information, may be received. the distribution area (paging area or MBMS sir Bisje rear) of emergency intelligence and the emergency intelligence concerned is included in power or a Distribution demand here -- and To -- it carries out. [0031] The secret key of distribution server 10 is used for electronic signature generation part 14, and it is to emergency intelligence receiving part 13. It is constituted so that the electronic signature (namely, the person himself/herself of emergency intelligence a sex electronic signature of a Prove sake) to the received emergency intelligence may be generated, and they are and To.

[0032] The above-mentioned electronic signature by which electronic signature transmission section 15 was generated by electronic signature generation part 14, CBS or MBMS -- constituting the traffic channel "CTCH" or "MTCH" of business (simultaneous transmissive communication) so that business V, The, and the generated electronic signature may be transmitted to mobile station UE -- ! and To.

[0033] Emergency intelligence by which emergency intelligence transmission section 16 was received by emergency intelligence receiving part 13, It is constituted so that it may transmit to radio circuit control office RNC by SABP (Service Area Broadcast Protocol) specified by 3GPPTS25.419.

[0034] Figure, As shown in 3, it is a base transceiver station. Node B is provided with the following. Emergency intelligence receiving part 21 Emergency intelligence transmission section 22.

[0035] It is constituted so that the emergency intelligence transmitted from distribution server 10 may be received via radio circuit control office RNC, and emergency intelligence receiving parts 21 are and To.

[0036] Being concrete and "PCH" to which radio circuit control office RNC power was also transmitted as for PCH receiving part 31 It is constituted and they are and To so that it may receive.

[0037] Emergency intelligence transmission section 22 is mobile station UE about the emergency intelligence transmitted from distribution server 10. It receives, it is constituted so that it may transmit, and they are and To.

[0038] Specifically, emergency intelligence transmission section 22 is, "PICH" (Paging Indication Channel) or "MICH (MBMS Indication Channel)" (channel for reporting that there is mail arrival information to a specific mobile station ( Mobile station belonging to a specific group)) is used, Above It is constituted so that emergency intelligence may be transmitted, and it is To go.

[0039] Figure, It is a mobile station as shown in 4. UE is provided with the following. Emergency intelligence receiving part 31 Emergency intelligence indicator 32 Electronic signature receiving part 33 Public key receiving part. 34 and public key storage part 35 and sender authentication section 36

[0040] Control Chia for starting emergency intelligence receiving part 31, CBS, or MBMS (simultaneous transmissive communication) Via flannel "PICH" or "MICH", it is constituted so that above-mentioned emergency intelligence may be received. It is.

[0041] electronic signature receiving part 33, CBS, or MBMS -- being constituted via traffic channel "C TCHj or "MTCH" of business (simultaneous transmissive communication), so that an above-mentioned electronic signature may be received -- and To.

[0042] public key receiving part 34, CBS, or MBMS -- being constituted via traffic channel "CTCHj or "MTCH" of business (simultaneous transmissive communication), so that the public key of distribution server 10 may be received -- To go.

[0043] It is constituted so that the public key of distribution server 10 received by public key receiving part 34 may be memorized, and public key storage parts 35 are and To.

[0044] the above-mentioned electronic signature by which sender authentication section 36 was received by electronic signature receiving part 33 -- and

It is based on the public key of distribution server 10 memorized by public key storage part 35, and is emergency intelligence. It is constituted (namely, this human nature Stickiness of the distribution origin of emergency intelligence it Authentications like), and they are and To so that it may attest about the validity of the emergency intelligence displayed by indicator 32.

[0045] "PICH" or "MICH by which emergency intelligence indicator 32 was received by emergency intelligence receiving part 31

" -- being constituted so that it may be contained and and Emergency information may be displayed -- and To.

[0046] concrete -- emergency intelligence indicator 32 -- a figure -- 5 being constituted [ ] so that simple information may be displayed on a display screen as shown in (a) -- The -- being constituted [ ] so that and the purport that it carried out and alarm and vibration received simple information may be notified -- The --

[0047] It is constituted so that the method of presentation of Based , The, and emergency intelligence may be controlled to the authentication result by sender authentication section 36, and emergency intelligence indicators 32 are and To.

[0048] Specifically, emergency intelligence indicator 32 is, case (in the It is a force case [ Namely, the person himself/herself of distribution origin of emergency intelligence a sex accepted. ]) the above-mentioned authentication result was negative after displaying the emergency intelligence received via rpiCHj or "MICH" -- a figure -- 6 it is shown in (b) -- as Above-mentioned emergency intelligence It is constituted so that it may indicate that it was an error, and they are and To.

[0049] (Operation of the mobile communication system concerning the embodiment of The 1 of the present invention)

hereinafter, a figure -- operation of the mobile communication system applied to this embodiment with reference to 6 -- explanation It carries out.

[0050] a figure -- using "CTCH" or "MTCH" which is a traffic channel for distribution server 10, CBS, or MBMS in Step S1000, as shown in 6 -- distribution server 10 A public key is transmitted to mobile station UE.

[0051] In Step S1001, from government and municipal offices, a local self-governing body, etc., if the distribution demand of emergency intelligence, such as earthquake information and tsunami information, is received, distribution server 10 will be contained in this distribution demand, and will transmit emergency intelligence to radio circuit control office RNC corresponding to VRoaring delivery area.

[0052] , The, and radio circuit control office RNC transmit the received emergency intelligence to Step S1002 in base transceiver station Node B.

[0053] Step S In 1003, base transceiver station Node B transmits above-mentioned emergency intelligence to mobile station UE using "PICH" or "MICH."

[0054] in Step S1004 -- mobile station UE -- a figure -- 5 (a) * This -- like -- base transceiver station Node

B power The emergency intelligence contained in transmitted "PICH" or "MICH" is displayed.

[0055] mobile station UE is set to "0101" at the low rank 4 bit in predetermined 12 bits in "PICH" or "MICH" -- !, being constituted [ ] so that the emergency intelligence for notifying a To case "the occurrence of an earthquake" may be displayed and the emergency intelligence for notifying the case "generating of a flood" where it is set to "1010" at power or 4 bits of low ranks in 12 bits of To may be displayed -- The -- ,

[0056] it sets to Step S1005 -- processing for starting CBS or MBMS (simultaneous transmissive communication) is performed.

[0057] Distribution server 10 after above-mentioned processing is completed in Step S1006, the electronic signature to above-mentioned emergency intelligence is generated using the public key of distribution Sano 10 -- using the traffic channel "CTCH" or "MTCH" for CBS or MBMS (simultaneous transmissive communication) -- raw -- The accomplished electronic signature is transmitted to mobile station UE.

[0058] setting , The, and mobile station UE step S 1004 based on the public key of the received electronic signature and distribution server 10 memorized by public key storage part 35 to Step S1007 the validity of the displayed emergency intelligence -- One! -- it Authentication.

[0059] case power or Authentication result was negative -- mobile station UE -- a figure -- 6 As shown in (b), it indicates that above-mentioned emergency intelligence was an error.

[0060] Distribution server 10 is set to step S 1008, the public key and secret key of distribution server 10 are updated, and it sets to Step S1009 -- the traffic channel for CBS or MBMS -- Ah using To "CTCH" or "MTCH" -- it is transmission to mobile station UE about the public key of distribution server 10 It carries out.

[0061] (Operation and effect of the mobile communication system concerning the embodiment of The 1 of the present invention) According to the mobile communication system concerning this embodiment, it is mobile station UE, The validity of the emergency intelligence concerned is attested using the electronic signature to the emergency intelligence concerned of which transmission was done using after, "CTCH", or "MTCH" which displayed the emergency intelligence transmitted using "PICH" or "Media Interface Connector Hj. In order to carry out, Attainment delay to mobile station UE of the emergency intelligence concerned is shortened, and it is the Urgency concerned. Spoofing to the sender of sudden information can be prevented.

[0062] (Mobile communication system concerning the embodiment of The 2 of the present invention)

Drawing 7 and a figure -- the mobile communication system applied to the embodiment of The 2 of the present invention with reference to 8 -- just -- Explanation is carried out. Hereinafter, fruit of above-mentioned The [ mobile communication system / concerning this embodiment ] 1 It explains paying attention to difference with the mobile communication system concerning an applied configuration.

[0063] Figure, As shown in 7, it is a radio circuit control office. RNC is provided with the following. Emergency intelligence receiving part 41 Emergency intelligence transmission section 42.

[0064] Emergency intelligence receiving part 41 is constituted so that the emergency intelligence transmitted from distribution server 10 may be received.

[0065] It is constituted so that the emergency intelligence transmitted from distribution server 10 may be transmitted to mobile station UE, and emergency intelligence transmission sections 42 are and To.

[0066] Specifically, emergency intelligence transmission section 42 is, "PCCH" (Paging Control Channel) Again "MICH (MBMS Control Channel)" (channel for mail arrival information to notify There to a specific mobile station) is used, above-mentioned emergency intelligence is transmitted -- as -- composition -- Being done.

[0067] hereinafter, a figure -- explain operation of the mobile communication system concerning this embodiment with reference to 8.

[0068] a figure -- using "CTCH" or "MTCH" which is a traffic channel for distribution server 10, CBS, or MBMS in Step S2000, as shown in 8 -- distribution server 10 A public key is transmitted to mobile station UE.

[0069] In Step S2001, from government and municipal offices, a local self-governing body, etc., if the distribution demand of emergency intelligence, such as earthquake information and tsunami information, is received, distribution server 10 will be contained in this distribution demand, and will transmit emergency intelligence to radio circuit control office RNC corresponding to VRoaring delivery area.

[0070] In Step S2002, radio circuit control office RNC transmits the received emergency intelligence to mobile station UE using "PCCHj or "MCCH."

[0071] in Step S2003 -- mobile station UE -- a figure -- 5 it is shown in (a) -- as -- radio circuit control office R

The emergency intelligence contained in "PCCH" or "MCCH" to which NC power was also transmitted is displayed.

[0072] For example, mobile station UE can be set to "PCCH" or "MCCH". "payload part (240 bits)

" (refer to 3GPP TS34.108) -- it indicates that it received the emergency intelligence inserted It may be constituted by obtaining.

[0073] About operation of Step S2004 thru/or Step S2008, it is the same as that of above-mentioned step S1005 thru/or operation of S 1009.

[0074] According to the mobile communication system concerning this embodiment, mobile station UE is "PCCH" or "MC.

After, "CTCH", or "MTCH" for which the emergency intelligence transmitted using CHJ was displayed is used. The validity of the emergency intelligence concerned is attested using the electronic signature to the transmitted emergency intelligence concerned. In order to carry out, Attainment delay to mobile station UE of the emergency intelligence concerned is shortened, and it is the Urgency concerned. Spoofing to the sender of sudden information can be prevented.

[0075] (Mobile communication system concerning the embodiment of The 3 of the present invention)

Drawing 9 thru/or figure With reference to 11, it is One to the mobile communication system concerning the embodiment of The 3 of the present invention. Are and it explains. Hereinafter, above-mentioned The [ mobile communication system / concerning this embodiment ] 1 It explains paying attention to difference with the mobile communication system concerning an embodiment.

[0076] a figure -- as shown in 9, radio circuit control office RNC possesses emergency intelligence receiving part 41, emergency intelligence transmission section 42A, secret key receiving part 43, secret key storage part 44, and electronic signature generation part 45 ing.

[0077] Secret key receiving part 43 is constituted so that the secret key of distribution server 10 transmitted from distribution server 10 may be received.

[0078] It is constituted so that the secret key of distribution server 10 received by secret key receiving part 43 may be memorized, and secret key storage parts 44 are and To.

[0079] The emergency intelligence received by emergency intelligence receiving part 41 and secret key storage part 44 memorize, use the secret key of and Distribution server 10, and electronic signature generation part 45 is the emergency intelligence concerned. It is constituted so that the receiving electronic signature may be generated, and it is To go.

[0080] "PCCH" or "MCCH" is used for emergency intelligence transmission section 42A -- above-mentioned emergency intelligence and Both The electronic signature generated by electronic signature generation part 45 is transmitted to mobile station UE. It is constituted like.

[0081] Specifically, it is emergency intelligence transmission section 42A, a figure -- 10 -- being constituted so that the arbitrary character strings which show emergency intelligence, and the electronic signature to the emergency intelligence concerned may be inserted to "the payload part (240 bits)" in "PCCH" or "MC CHJ, as shown in (a) -- -- The -- .

[0082] Emergency intelligence transmission section 42A, Figure 10 As opposed to "a payload part (240 bits)", [ in / as shown in (b) / "PCCH" or "MCCH" ] being constituted [ ] so that the bit patterns (for example, above-mentioned "0101", "1010", etc.) corresponding to emergency intelligence and the electronic signature to the emergency intelligence concerned may be inserted -- The -- ,

[0083] hereinafter, a figure -- explain operation of the mobile communication system concerning this embodiment with reference to 11.

[0084] a figure -- setting to Step S3000A, as shown in 11 -- distribution server 10, CBS, or MB

using "CTCH" or "MTCH" which is a traffic channel for MS -- distribution server 1

The public key of 0 is transmitted to mobile station UE.

[0085] In Step S3000B, distribution server 10 transmits the secret key of distribution server 10 to radio circuit control office RNC.

[0086] In Step S3001, distribution server 10 is contained in this distribution demand, if the distribution demand of emergency intelligence, such as earthquake information and tsunami information, is received from government and municipal offices, a local self-governing body, etc.

Emergency intelligence is transmitted to radio circuit control office RNC corresponding to VRoaring delivery area.

[0087] Step S3002 memorizes at the emergency intelligence which received , The, and radio circuit control office RNC, and secret key storage part 44, use the secret key of and Distribution server 10 at it, and it is the emergency intelligence concerned. The receiving electronic signature is generated.

[0088] The emergency intelligence which received radio circuit control office RNC in Step S3003, and generation The electronic signature carried out is transmitted to mobile station UE using "PCCH" or "MCCH."

[0089] The electronic signature which Go and mobile station UE received to Step S3004, and a public key storage part

being based on the public key of distribution server 10 memorized by 35 -- validity of the emergency intelligence concerned about -- it attests.

[0090] When power or Authentication result is affirmative, mobile station UE displays the received emergency intelligence. On the other hand, when power or Authentication result is negative, mobile station UE is above-mentioned urgent Sentiment. It judges that news is an error and does not display power or Emergency information.

[0091] mobile station UE is set to "0101" at 4 bits of low ranks in predetermined 12 bits in "PCCH" or "MCCH" -- !, being constituted [ ] so that the emergency intelligence for notifying a To case "the occurrence of an earthquake" may be displayed and the emergency intelligence for notifying the case "generating of a flood" where it is set to "1010" at power or 4 bits of low ranks in 12 bits of To may be displayed -- The -- ,

[0092] it sets to Step S3005 -- processing for starting CBS or MBMS (simultaneous transmissive communication) is performed.

[0093] Distribution server 10 is set to Step S3006, The public key and secret key of distribution server 10 are updated, and it sets to Step S3007, It is Ah at the traffic channel for CBS or MBMS. The public key of distribution server 10 is transmitted to mobile station UE using To "CTCH" or "MTCH". It is [ in / carry out and / Step S3008 ] to radio circuit control office RNC about the secret key of distribution server 10. It transmits.

[0094] (Mobile communication system concerning the embodiment of The 4 of the present invention)

With reference to Drawing 12, the mobile communication system concerning the embodiment of The 3 of the present invention is explained. It carries out. Hereinafter, embodiment of above-mentioned The [ mobile communication system / concerning this embodiment ] 1 It explains paying attention to difference with the mobile communication system to apply.

[0095] hereinafter, a figure -- explain operation of the mobile communication system concerning this embodiment with reference to 12.

[0096] a figure -- as shown in 12, transmit the public key of distribution server 10 to mobile station UE in Step S4000 using "CTCH" or "MTCH" which is a traffic channel for distribution server 10, CBS, or MBMS.

[0097] Distribution server 10 is in Step S4001, Urgency which receives the distribution demand of emergency intelligence, such as earthquake information and tsunami information, and is contained in the received distribution demand from government and municipal offices, a local self-governing body, etc. Electronic signature [ as opposed to the emergency intelligence concerned using sudden information and the secret key of distribution server 10 ] It generates.

[0098] Electronic signature [ as opposed to emergency intelligence and the emergency intelligence concerned to radio circuit control office RNC corresponding to the distribution area included in power or a Distribution demand in Step S4002 ] It transmits.

[0099] The emergency intelligence and the electron which received radio circuit control office RNC in Step S4003 A signature is transmitted to mobile station UE using "PCCH" or "MCCH."

[0100] Go and mobile station UE are based on Step S4004 at the public key of the received electronic signature and distribution server 10 memorized at public key storage part 35 -- validity of the emergency intelligence concerned about -- it attests.

[0101] When power or Authentication result is affirmative, mobile station UE displays the received emergency intelligence. On the other hand, when power or Authentication result is negative, mobile station UE is above-mentioned urgent Sentiment. It judges that news is an error and does not display power or Emergency information.

[0102] mobile station UE is set to "0101" at 4 bits of low ranks in predetermined 12 bits in "PCCH" or "MCCH" -- !, being constituted [ ] so that the emergency intelligence for notifying a To case "the occurrence of an earthquake" may be displayed and the emergency intelligence for notifying the case "generating of a flood" where it is set to "1010" at power or 4 bits of low ranks in 12 bits of To may be displayed -- The -- ,

[0103] it sets to Step S4005 -- processing for starting CBS or MBMS (simultaneous transmissive communication) is performed.

[0104] Distribution server 10 is set to Step S4006, the public key and secret key of distribution server 10 are updated, and it sets to Step S4007 -- the traffic channel for CBS or MBMS -- Ah using To "CTCH" or "MTCH" -- it is transmission to mobile station UE about the public key of distribution server 10 It carries out.

[0105] In addition, all the contents of Japan Patent application No. (June 19, 2006 application) 169435 [ 2006 to ] are included in this application specification by reference.

[0106] "3GPP TS23.041" and total contents power of "3GPP TS23.246" It is included in this application specification by reference, and they are and To.

[0107] although the present invention was explained in detail above using the above-mentioned embodiment -- a person skilled in the art -- saying [ that an intermediary is not what is limited to the embodiment which the present invention described to this detailed in the letter one ] It is clear. the meaning of the present invention in which the present invention becomes settled by the statement of a claim -- and -- It can carry out as correction and a change mode, without deviating from the range. Therefore, Origin The statement of a thin document aims at illustration explanation, and is restrictive mind in any way to the present invention. It does not have a taste.

Possibility of industrial use

using simultaneous transmissive communication according to the present invention, as explained above -- emergency intelligence -- a mobile station -- Transfer which makes it possible to prevent spoofing to the sender of emergency intelligence when carrying out Trust which provides a Trust system, a mobile communication method, a distribution server, a radio circuit control office, and a mobile station coming out -- last .