WO2009110265A1 - 通信端末装置、仮名通信識別子の関係判別可能性決定装置、通信システム、通信方法及び記憶媒体 - Google Patents
通信端末装置、仮名通信識別子の関係判別可能性決定装置、通信システム、通信方法及び記憶媒体 Download PDFInfo
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- WO2009110265A1 WO2009110265A1 PCT/JP2009/051376 JP2009051376W WO2009110265A1 WO 2009110265 A1 WO2009110265 A1 WO 2009110265A1 JP 2009051376 W JP2009051376 W JP 2009051376W WO 2009110265 A1 WO2009110265 A1 WO 2009110265A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/563—Data redirection of data network streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
- H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
Definitions
- the present invention relates to a communication terminal device, a kana communication identifier relationship determination possibility determination device, a communication system, a communication method, and a storage medium.
- a communication identifier When communicating between devices, a communication identifier is used to identify a communication destination device and a communication source device.
- This temporarily used communication identifier is called a pseudonym communication identifier, and a permanently used identifier is called a real name communication identifier.
- Non-Patent Document 1 As a prior art document disclosing an example of a communication method using such a pseudonym communication identifier, for example, there is Non-Patent Document 1.
- Non-Patent Document 1 discloses a technology for performing communication using SIP (Session Initiation Protocol) using GRUU (Globally Routable User Agent URIs).
- SIP Session Initiation Protocol
- GRUU Globally Routable User Agent URIs
- SIP uses a real name communication identifier called SIP-URI as a communication identifier, but GRUU has an temporarily usable identifier called Temporary GRUU.
- This Temporary GRUU can be used as a pseudonym communication identifier.
- the communication source device can communicate with the communication destination device using Temporary GRUU indicating the communication destination device.
- the communication source device can communicate with the communication destination device using the pseudonym communication identifier Temporary GRUU without knowing the real name communication identifier SIP-URI of the communication destination device.
- kana communication identifiers There are two types of kana communication identifiers: a kana communication identifier whose relationship cannot be determined and a kana communication identifier whose relationship can be determined.
- a kana communication identifier whose relationship cannot be determined is a communication identifier that cannot be seen from a communication destination device when a plurality of kana communication identifiers indicate the same communication source device. For example, by using a different kana communication identifier for each access to the same communication destination device, a kana communication identifier whose relationship cannot be determined can be realized.
- the device at the communication source can be used by using a kana communication identifier that cannot be separately determined for each product purchase. Is to prevent the storage of the product purchase history of what products have been purchased so far.
- the communication source device does not want to store its own product purchase history, for example, a kana communication identifier that cannot be identified may be used.
- a kana communication identifier whose relationship can be determined is a communication identifier that can be seen from a communication destination device that a plurality of kana communication identifiers indicate the same communication source device.
- the kana communication identifier is used even if the same kana communication identifier is used every time the product is purchased.
- the communication source device can be specified.
- the Web site it is possible to analyze the preference of the communication source device using the product purchase history from the communication source device and to recommend the product according to the preference of the communication source device. Therefore, the convenience of the Web site can be improved for the communication source device.
- the communication source device may store its own product purchase history, and when it is desired to recommend a product that suits its own preference from the product purchase history, use a kana communication identifier that can determine the relationship. It ’s fine.
- the first problem is that, in each communication layer, a communication source device can be uniquely identified due to a mismatch between a kana communication identifier whose relationship can be determined and a kana communication identifier whose relationship cannot be determined.
- the problem is that behavior is traced. This is because, for example, when the communication source device is communicating with the communication destination device using the kana communication identifier, the kana communication identifier of the higher layer communication source device cannot be determined, If the kana communication identifier of the lower layer communication source device can be identified, the communication destination device can uniquely identify the communication source device by the kana communication identifier capable of determining the lower layer relationship.
- the behavior of the communication source device can be traced, and the meaning of using a kana communication identifier that cannot be identified is lost.
- the second problem is that the information of the communication source device can be estimated by changing the pseudonym communication identifier of the lower communication layer.
- the communication source device is a mobile terminal
- the communication identifier such as the IP address of the mobile terminal changes. Therefore, it can be estimated that the communication source device has a high possibility that the communication source device is moving because the communication identifier of the communication source device has changed. Since the information of the communication source device may be guessed due to the change of the kana communication identifier of the lower communication layer in this way, the change of the kana communication identifier of the lower communication layer is visible from the communication destination device. It is desirable not to have it.
- the first object of the present invention is to prevent kana communication from occurring in each communication layer so that inconsistency between a kana communication identifier whose relationship can be determined and a kana communication identifier whose relationship cannot be determined does not occur. It is an object of the present invention to provide a communication terminal device, a communication system, a communication method, and a storage medium that can determine the identifier discriminability.
- a second object of the present invention is to provide a communication terminal device, a communication system, and a communication device capable of preventing information on a communication source device from being estimated due to a change in a pseudonym communication identifier of a lower communication layer.
- a communication method and a storage medium To provide a communication method and a storage medium.
- the communication terminal apparatus can perform communication configured by a plurality of communication layers using a pseudonym communication identifier in a communication layer that requires pseudonymization of the communication identifier. And a relation discriminability determining means for determining the relation discriminability of the communication layer pseudonym communication identifier that needs to be converted to a pseudonym when the communication means performs the communication.
- the sex determining means determines the relationship discriminability of the pseudonym communication identifier of a specific communication layer among the plurality of communication layers to the specified one of the relationship discriminable or the relationship discriminating, Regarding the possibility of determining the relationship of the pseudonym communication identifiers of the other communication layers of the communication layers, the pseudonym communication identifier of the specific communication layer can be determined or not determined Depending of whether the ability is characterized by determining whether to whether relevant indeterminable allow related discrimination.
- the kana communication identifier relationship determination possibility determination apparatus is a communication that can perform communication configured by a plurality of communication layers using a kana communication identifier in a communication layer that requires kana conversion of the communication identifier.
- the relationship discriminability determining means for determining the relationship discriminability of the communication layer pseudonym communication identifier that requires the pseudonym of the communication identifier, and notifies the communication terminal device of the determined relationship discriminability Notification means
- the relationship discriminability determining means includes a relationship discriminating capability or a relationship discriminating capability for the relationship discriminating capability of the kana communication identifier of a specific communication layer among the plurality of communication layers.
- the kana identification of the specific communication layer is determined. There, depending on whether either of the relationship distinguishable or relation discrimination impossible, is characterized by determining whether to whether relevant indeterminable allow related discrimination.
- a communication system includes a communication terminal device and a communication destination device that is a communication partner of the communication terminal device, and the communication terminal device performs communication including a plurality of communication layers as a pseudonym of a communication identifier.
- Determination of communication means that can be performed using a pseudonym communication identifier in a communication layer that requires communication, and a communication layer pseudonym communication identifier that requires the communication identifier to be pseudonym when performing the communication by the communication means
- a relation discriminability determining means for determining the possibility, the relation discriminability determining means is related to the relation discrimination possibility of the pseudonym communication identifier of a specific communication layer of the plurality of communication layers.
- the pseudonym communication identifier of a specific communication layer depending on whether the relation discrimination possible or relation discrimination impossible is characterized by determining whether to whether relevant indeterminable allow related discrimination.
- a first step of determining a relationship discriminability of a kana communication identifier of a communication layer that requires pseudonymization of the communication identifier wherein the first step includes a pseudonym of a specific communication layer of the plurality of communication layers Regarding the possibility of determining the relationship between communication identifiers, the second process of determining the specified one of the relationship determination possible or the relationship determination impossible, and the pseudonym communication identifiers of other communication layers of the plurality of communication layers Whether the relationship can be determined or not can be determined depending on whether the kana communication identifier of the specific communication layer is related or not. It is characterized in that it comprises a third step of determining the ability of.
- the storage medium of the present invention performs communication composed of a plurality of communication layers when the communication is performed by a communication unit capable of performing communication using a pseudonym communication identifier in a communication layer that requires pseudonymization of the communication identifier.
- a first process for determining the relationship discriminability of a kana communication identifier of a communication layer that requires a communication identifier to be kana, and the relationship of a kana communication identifier of a specific communication layer of the plurality of communication layers can be determined
- For the process of determining the specified one of the relationship determination possible or the relationship determination impossible, and the relationship determination possibility of the pseudonym communication identifier of the other communication layer of the plurality of communication layers Determine whether the relationship can be determined or not, depending on whether the kana communication identifier of the specific communication layer is related or not. Is characterized by storing a program for executing the management, the process including the computer.
- the communication source device is uniquely identified due to the mismatch of the pseudonym communication identifiers of the respective communication layers.
- 1 is a block diagram showing a configuration of a communication system according to a first embodiment. It is a block diagram which shows the structure of the communication origin apparatus (communication terminal device) which concerns on 1st Embodiment. It is a figure which shows an example of communication layer information. It is a figure which shows an example of a relationship discriminability judgment rule. It is a flowchart which shows the flow of operation
- Control unit (relation discrimination possibility determining means, kana-recognized communication layer recognition means, movement schedule recognition means, kana communication identifier generation means, relation discrimination possibility inquiry means) 4 communication section (communication means) 5 storage unit 9 communication layer information storage area (communication layer information storage means) 10 Relationship Discriminability Judgment Rule Storage Area (Relation Discrimination Judgment Rule Storage Unit) 11 IP address setting storage area 12 SIP-URI setting storage area 13 IP layer relay device setting storage area 14 Communication type layer information storage area (communication type layer information storage means) 15 Communication destination layer information storage area (communication destination layer information storage means) 16 Mobility information storage area (movement schedule information storage means) 200 Communication source device (communication terminal device) 401 Communication destination device 501 IP layer relay device (relay device) 502 IP layer relay device (relay device) 503 IP layer relay device (relay device)
- SIP SIP layer communication
- IP layer IP layer
- SIP Session Initiation using SIP, communication is first performed in the SIP layer, which is an upper communication layer, and communication is performed in an IP layer such as an IP address that is a communication identifier of the IP layer of the communication source device and the communication destination device. Exchanging necessary information at the time. Thereafter, communication is performed between the communication source device and the communication destination device in the IP layer, which is a lower communication layer, and the voice data of the telephone is mutually exchanged.
- IP layer such as an IP address that is a communication identifier of the IP layer of the communication source device and the communication destination device. Exchanging necessary information at the time.
- IP layer such as an IP address that is a communication identifier of the IP layer of the communication source device and the communication destination device. Exchanging necessary information at the time. Thereafter, communication is performed between the communication source device and the communication destination device in the IP layer, which is a lower communication layer, and the voice data of the telephone is mutually exchanged.
- SIP-URI Uniform Resource Identifier
- an IP address is used as a communication identifier.
- the communication source device and the communication destination device perform telephone communication using the pseudonym SIP-URI that is the pseudonym communication identifier of the SIP-URI
- the communication source device is the communication destination device. It is assumed that only the pseudonym SIP-URI is known without knowing the real name SIP-URI and the real IP address. Then, the pseudonym SIP-URI is used to exchange the pseudonym IP address between the communication source device and the communication destination device, and the phonetic voice data is exchanged using the pseudonym IP address.
- the communication source terminal device has a mechanism in which an IP address can be freely set.
- an IP address can be freely set in Linux.
- FIG. 1 is a block diagram showing a configuration of a communication system 100 according to the first embodiment.
- the communication system 100 includes a communication source device (communication terminal device) 200, a SIP server 301, and a communication destination device 401, which are configured as a network. 500 can communicate with each other.
- a communication source device communication terminal device
- SIP server 301 SIP server
- a communication destination device 401 which are configured as a network. 500 can communicate with each other.
- FIG. 2 is a block diagram showing the configuration of the communication source device 200.
- the communication source device 200 includes an operation unit 1 that receives user operations, a control unit 2, a display unit 3 that performs various display operations, and a SIP server 301 and a communication destination device 401. And a communication unit (communication means) 4 for performing communication and a storage unit 5 for storing data.
- control unit 2 functions as a CPU (Central Processing Unit) 6 that performs various control operations, a ROM (Read Only Memory) 7 that stores programs for the operation of the CPU 6, and a work area of the CPU 6.
- RAM Random Access Memory
- the control operation performed by the CPU 6 of the control unit 2 includes a display operation on the display unit 3 in addition to the control of determining the relationship determination possibility and generating a kana communication identifier according to the determined relationship determination possibility.
- the storage unit 5 includes a communication layer information storage area 9, a relationship discriminability determination rule storage area 10, an IP address setting storage area 11, and a SIP-URI setting storage area 12.
- the communication layer information storage area (communication layer information storage means) 9 stores and holds communication layer information indicating a communication layer for which a communication identifier needs to be pseudonymized.
- FIG. 3 is a diagram showing an example of communication layer information.
- the communication layer information indicates a SIP layer and an IP layer as communication layers that require pseudonymization of communication identifiers.
- the communication layer information it is assumed that communication layers that require pseudonymization of communication identifiers are listed in order from the upper layer. That is, it can be seen from the communication layer information shown in FIG. 3 that the SIP layer is an upper layer and the IP layer is a lower layer.
- relationship discriminability determination rule storage area (relationship discriminability determination rule storage means) 10 is configured so that a lower layer (another communication layer) is selected according to the relationship determination capability of the kana communication identifier of the upper layer (specific communication layer)
- the relationship discriminability determination rule used to determine whether or not the relationship discrimination possibility of the kana communication identifier in FIG.
- FIG. 4 is a diagram showing an example of a relation discriminability determination rule.
- the relationship determination possibility determination rule includes a first rule and a second rule.
- the first rule includes the contents “if the upper layer kana communication identifier is a kana communication identifier whose relationship cannot be determined, the lower layer kana communication identifier is also unrecognizable”. It is a rule.
- the second rule is a rule with the content that “if the upper layer kana communication identifier is a kana communication identifier that can be related, the lower layer kana communication identifier can also be related”. It is.
- the SIP-URI setting storage area 12 is the SIP-URI of the communication source device 200 used for communication, and stores and holds the SIP-URI set in accordance with the possibility of determining the relationship of the SIP layer.
- the IP address setting storage area 11 is an IP address of the communication source device 200 used for communication, and stores and holds an IP address set according to the IP layer relationship determination possibility.
- the communication unit 4 has a function of communicating with the SIP server 301 using the SIP-URI read from the SIP-URI setting storage area 12 when communicating with the communication destination device 401 at the SIP layer.
- the communication unit 4 has a function of communicating with the communication destination device 401 using the IP address read from the IP address setting storage area 11 when communicating with the communication destination device 401 at the IP layer.
- FIGS. 5A and 5B are flowcharts showing the operation flow of the communication source device 200 in the case of the present embodiment.
- the CPU 6 of the control unit 2 monitors whether or not an operation for performing telephone communication with the communication destination apparatus 401 using the pseudonym using SIP has been performed on the operation unit 1 (Step S1). S1).
- step S1 The monitoring in step S1 is repeated until the operation is performed on the operation unit 1.
- step S1 When the operation is performed on the operation unit 1 (Yes in step S1), the CPU 6 performs control to display on the display unit 3 a selection screen for allowing the user to select a relationship determination possibility applied to communication to be performed. As a result, the display unit 3 displays the selection screen (step S2).
- control unit 2 functions as a relationship discrimination possibility inquiry means.
- the CPU 6 monitors whether or not an operation for designating either “relationship determination impossible” or “relationship determination possible” is performed on the operation unit 1 as the relationship determination possibility (step S3).
- step S3 The monitoring in step S3 is repeated until the operation unit 1 is operated to designate either “relationship is impossible” or “relationship is possible” as the relationship determination possibility.
- the CPU 6 refers to the communication layer information storage area 9 to perform pseudonymization.
- Information indicating a necessary communication layer is acquired and recognized (step S4). That is, here, the control unit 2 functions as a kana-named communication layer recognition unit.
- the communication layers that require pseudonymization are the SIP layer and the IP layer, as shown in FIG. Note that the CPU 6 also recognizes that the SIP layer described above is an upper layer among these SIP layers and IP layers.
- the CPU 6 determines the relationship determination possibility of the pseudonym communication identifier of the SIP layer that is the highest layer according to the relationship determination possibility specified in the previous step S3 (step S5).
- the control unit 2 functions as a relationship determination possibility determination unit.
- the CPU 6 acquires a relationship determination possibility determination rule from the relationship determination possibility determination rule storage area 10 (step S6).
- the CPU 6 determines the relationship determination possibility of all lower layer pseudonym communication identifiers according to the relationship determination possibility determination rule acquired in the previous step 6 (step S7). That is, also here, the control unit 2 functions as a relationship determination possibility determination unit.
- the communication layer of the highest layer is the SIP layer
- the communication layer of the lower layer is the IP layer. If there is only one, but there are a plurality of lower layers, in step S7, the relationship determination possibility of all the lower layers is determined.
- step S7 if the relationship discriminability of the kana communication identifier of the SIP layer that is the upper layer is “relationship is impossible”, the IP that is the lower layer is determined according to the first rule shown in FIG. The relationship discrimination possibility of the layer pseudonym communication identifier is also determined as “relationship impossible”.
- the relationship discriminability of the SIP layer pseudonym communication identifier of the upper layer is “relationship discriminable”
- the relationship of the lower layer IP layer pseudonym communication identifier can be discriminated according to the second rule shown in FIG.
- the sex is also determined to be “relationship distinguishable”.
- step S8 the CPU 6 determines whether or not the relationship determination possibility of the pseudonym communication identifier of the SIP layer that is the upper layer is “relationship determination impossible”.
- the control unit 2 functions as a pseudonym communication identifier generation unit.
- step S10 If the relationship discrimination possibility of the pseudonym communication identifier of the SIP layer which is the upper layer is determined as “relationship possible” in the previous step S5 (No in step S8), the CPU 6 has already used the relationship. It is determined whether or not a distinguishable pseudonym SIP-URI exists (step S10).
- the CPU 6 stores the kana SIP-URI in the SIP-URI setting storage area 12 (step S11).
- the CPU 6 If there is no kana SIP-URI that can already be used for relationship determination (No in step S10), the CPU 6 newly generates a kana SIP-URI for which the relationship can be determined, and the generated kana SIP.
- the URI is stored in the SIP-URI setting storage area 12 (step S12). That is, also here, the control unit 2 functions as a pseudonym communication identifier generation unit.
- step S13 the CPU 6 determines whether or not the relationship determination possibility of the pseudonym communication identifier of the lower layer IP layer is “relationship determination impossible”.
- step S13 If it is determined in the previous step S7 that the relationship discrimination possibility of the lower layer IP layer pseudonym communication identifier is “impossible to determine relationship” (Yes in step S13), the CPU 6 cannot determine the relationship. A new pseudonym IP address is generated, and the generated pseudonym IP address is stored in the IP address setting storage area 12 (step S14).
- step S15 If the relationship determination possibility of the kana communication identifier of the lower layer IP layer is determined to be “relationship determination possible” in the previous step S7 (No in step S13), the CPU 6 has already used the relationship. It is determined whether or not a distinguishable pseudonym IP address exists (step S15).
- step S15 If there is a kana IP address that can be used for determining the relationship (Yes in step S15), the CPU 6 stores the kana IP address in the IP address setting storage area 11 again (step S16).
- step S15 If there is no kana IP address that can be used for relationship determination (No in step S15), the CPU 6 generates a kana IP address that can be used for new relationship determination, and uses the generated kana IP address. It is stored in the IP address setting storage area 12 (step S17).
- step S18 following steps S14, S16, and S17, the CPU 6 stores the pseudonym SIP-URI stored in the SIP-URI setting storage area 12 in any of the previous steps S9, S11, and S12, and the previous steps S14 and S16.
- the pseudonym IP address stored in the IP address setting storage area 11 in any of S17 is acquired, and the pseudonym SIP-URI and the pseudonym IP address are registered in the SIP server 301 (step S18).
- step S 18 the CPU 6 outputs a command to the communication unit 4 to cause the SIP server 301 to transmit the pseudonym SIP-URI and the pseudonym IP address together with a registration request for the communication identifier.
- the SIP server 301 that receives the pseudonym SIP-URI, the pseudonym IP address, and the registration request thereof from the communication source device 200 performs a process of registering the pseudonym SIP-URI and the pseudonym IP address as the communication identifier of the communication source device 200.
- step 19 following step S18 the CPU 6 outputs a command to the communication unit 4 to establish a communication session between the communication unit 4 and the communication destination device 401.
- the communication unit 4 that has received a command from the CPU 6 first transmits a SIP session establishment message with the transmission source as the pseudonym SIP-URI of the communication source device 200 and the transmission destination as the SIP-URI of the communication destination device 401. To the server 301. At this time, as the IP address of the communication source device 200 for establishing the call session, information on the pseudonym IP address is entered in the SIP session establishment message.
- the SIP server 301 transmits the received SIP session establishment message to the communication destination device 401.
- the communication destination device 401 puts the IP address information of the communication source device 200 in the response to the SIP session establishment message. As a result, a communication session is established between the communication source device 200 and the communication destination device 401.
- the communication source device 200 can perform telephone communication using the SIP with the communication destination device 401.
- step S1 when the user performs an operation on the operation unit 1 to perform telephone communication using the pseudonym with SIP with the communication destination device 401 (Yes in step S1), a selection screen for the relationship determination possibility is displayed on the display unit 3. Since it is displayed, the user selects “relationship determination impossible” as the relationship determination possibility (Yes in step S3).
- the CPU 6 acquires the SIP layer and the IP layer as communication layers that need to be pseudonymized, and recognizes that the SIP layer is an upper layer.
- the CPU 6 determines the possibility of determining the relationship of the pseudonym communication identifier of the SIP layer, which is the highest layer, to “unable to determine relationship” specified in the previous step S3 (step S5).
- the CPU 6 acquires a relationship determination possibility determination rule from the relationship determination possibility determination rule storage area 10 (step S6), and according to the acquired relationship determination possibility determination rule, the pseudonym communication of the IP layer which is a lower layer The possibility of discriminating the relationship between identifiers is determined (step S7).
- the relationship determination possibility of the SIP layer pseudonym communication identifier of the upper layer is “relationship determination impossible”
- the relationship of the IP layer pseudonym communication identifier of the lower layer according to the first rule shown in FIG. The discriminability is also determined as “relationship impossible”.
- step S8 since the relationship discrimination possibility of the pseudonym communication identifier of the upper layer SIP layer is “relationship determination impossible” (Yes in step S8), the CPU 6 newly sets a kana SIP-URI whose relationship cannot be determined.
- the generated pseudonym SIP-URI is stored in the SIP-URI setting storage area 12 (step S9).
- the CPU 6 since the relationship discrimination possibility of the IP layer pseudonym communication identifier of the lower layer is also “relationship impossible” (Yes in step S13), the CPU 6 newly generates a kana IP address whose relationship cannot be determined. Then, the generated pseudonym IP address is stored in the IP address setting storage area 12 (step S14).
- the CPU 6 acquires the pseudonym SIP-URI stored in the SIP-URI setting storage area 12 in the previous step S9 and the pseudonym IP address stored in the IP address setting storage area 11 in the previous step S14. Then, the kana SIP-URI and the kana IP address are registered in the SIP server 301 (step S18).
- step S 18 the CPU 6 outputs a command to the communication unit 4 to cause the SIP server 301 to transmit the pseudonym SIP-URI and the pseudonym IP address together with a registration request for the communication identifier.
- the SIP server 301 that receives the pseudonym SIP-URI, the pseudonym IP address, and the registration request thereof from the communication source device 200 performs a process of registering the pseudonym SIP-URI and the pseudonym IP address as the communication identifier of the communication source device 200.
- step 19 following step S18 the CPU 6 outputs a command to the communication unit 4 to establish a communication session between the communication unit 4 and the communication destination device 401.
- the communication unit 4 that has received a command from the CPU 6 first transmits a SIP session establishment message with the transmission source as the pseudonym SIP-URI of the communication source device 200 and the transmission destination as the SIP-URI of the communication destination device 401. To the server 301. At this time, as the IP address of the communication source device 200 for establishing the call session, information on the pseudonym IP address is entered in the SIP session establishment message.
- the SIP server 301 transmits the received SIP session establishment message to the communication destination device 401.
- the communication destination device 401 puts the IP address information of the communication source device 200 in the response to the SIP session establishment message. As a result, a communication session is established between the communication source device 200 and the communication destination device 401.
- the communication source device 200 can perform telephone communication using the SIP with the communication destination device 401 using the kana communication identifier whose relationship cannot be determined as the communication identifier.
- the communication source device 200 performs communication composed of a plurality of communication layers by using the pseudonym communication identifier in the communication layer that requires pseudonymization of the communication identifier.
- a control unit that functions as a relationship discriminability determining means for determining the relationship discriminability of a communication layer pseudonym communication identifier that requires pseudonymization of communication identifiers when communicating by the communication unit 4 2, and the control unit 2 determines the relationship of the kana communication identifier of a specific communication layer (specifically, the SIP layer that is the highest layer) among the plurality of communication layers.
- the relationship of the pseudonym communication identifier of the other communication layer (specifically, the IP layer) among the plurality of communication layers can be determined. Since the peculiar communication identifier of the specific communication layer determines whether the relationship can be determined or whether the relationship cannot be determined, it is determined whether the relationship can be determined. It is possible to solve the problem that the communication source device is uniquely identified due to the mismatch of the pseudonym communication identifier of the communication layer.
- FIG. 6 is a block diagram showing a configuration of the communication system 100 in the case of the second embodiment.
- the example in which the communication source device 200 generates a pseudonym IP address when the IP address of the communication source device 200 can be freely changed has been described.
- the IP layer relay relays the communication at the IP layer between the communication source device 200 and the communication destination device 401.
- An example in which a pseudonym IP address is realized by providing devices (relay devices) 501, 502, and 503 will be described.
- the communication destination device 401 does not directly communicate with the communication source device 200, but communicates with the IP layer relay devices 501 to 503. Therefore, the IP address of the communication source device 200 is set to the communication destination device. 401 can be hidden.
- the IP layer relay devices 501 to 503 have a function of communicating with the communication source device 200 and the communication destination device 401.
- the communication destination device 401 has a function of communicating with the IP layer relay devices 501 to 503.
- the IP layer relay devices 501 to 503 have a function of relaying communication between the communication source device 200 and the communication destination device 401. That is, when data is transmitted from the communication source device 200 to the communication destination device 401, first, the communication source device 200 and the IP layer relay devices 501 to 503 communicate, and the data is transmitted from the communication source device 200 to the IP layer relay devices 501 to 503. After that, the IP layer relay devices 501 to 503 and the communication destination device 401 communicate with each other, and the data is transmitted from the IP layer relay devices 501 to 503 to the communication destination device 401.
- the IP layer relay apparatuses 501 to 503 are registered in advance with the IP address of the communication source apparatus 200 and the IP address of the communication destination apparatus 401, and the data transmitted from the IP address of the communication source apparatus 200 Is sent to the communication destination device 401, and conversely, the data transmitted from the IP address of the communication destination device 401 is set to be sent to the communication source device 200.
- FIG. 7 is a block diagram showing the configuration of the communication source device 200 in the case of the second embodiment.
- the communication source device 200 includes the IP layer relay device setting storage area 13 instead of the IP address setting storage area 11 (FIG. 2). This is different from the communication source device 200 according to the embodiment.
- the IP layer relay device setting storage area 13 stores and holds the communication identifiers of the IP layer relay devices 501 to 503. These communication identifiers are used when the communication unit 4 performs communication at the IP layer.
- 8A and 8B are flowcharts showing the operation flow of the communication source device 200 in the present embodiment.
- step S13 the operations up to step S13 are the same as those in the first embodiment, and a description thereof will be omitted.
- the CPU 6 determines whether the relationship determination possibility of the kana communication identifier of the IP layer, which is the lower layer, is determined as “impossible relationship determination” in the previous step S7 (Yes in step S13). If the relationship determination possibility of the kana communication identifier of the IP layer, which is the lower layer, is determined as “impossible relationship determination” in the previous step S7 (Yes in step S13), the CPU 6 Then, one of the IP layer relay devices 501 to 503 that is not used is selected, and the IP address of the selected IP layer relay device is stored in the IP layer relay device setting unit 13 (step S21). .
- step S13 If it is determined in the previous step S7 that the relationship determination possibility of the pseudonym communication identifier of the lower layer IP layer is “relationship determination possible” (No in step S13), the CPU 6 has already used it. It is determined whether there is an existing IP layer relay device (any one of the IP layer relay devices 501 to 503) (step S22).
- step S22 If there is an IP layer relay device (any one of the IP layer relay devices 501 to 503) that is already used (Yes in step S22), the CPU 6 again sets the IP address of the IP layer relay device. Then, it is stored in the IP layer relay device setting unit 13 (step S23).
- the CPU 6 determines whether the IP layer relay devices 501 to 503 Among them, one unused IP layer relay device is selected, and the IP address of the selected IP layer relay device is stored in the IP layer relay device setting unit 13 (step S21).
- step S18 the CPU 6 determines the pseudonym SIP-URI stored in the SIP-URI setting storage area 12 in any of the previous steps S9, S11, and S12 and the IP in the previous step S21 or 23.
- the IP address of the IP layer relay device stored in the layer relay device setting storage area 13 is acquired, and the pseudonym SIP-URI and IP address are registered in the SIP server 301 (step S18).
- step S18 the CPU 6 outputs a command to the communication unit 4, and causes the SIP server 301 to transmit these pseudonym SIP-URI and IP address together with a registration request for the communication identifier.
- the SIP server 301 that has received the pseudonym SIP-URI, the IP address of the IP layer relay device and their registration request from the communication source device 200 registers this pseudonym SIP-URI as the communication identifier of the communication source device 200, and this IP address Is registered as a communication identifier of the IP layer relay device that relays communication of the communication source device 200.
- step 19 following step S18 the CPU 6 outputs a command to the communication unit 4 to establish a communication session between the communication unit 4 and the communication destination device 401.
- the communication unit 4 that has received a command from the CPU 6 first transmits a SIP session establishment message with the transmission source as the pseudonym SIP-URI of the communication source device 200 and the transmission destination as the SIP-URI of the communication destination device 401. To the server 301. At this time, as the IP address of the communication source device 200 for establishing the call session, the IP layer relay device IP address information stored in the IP layer relay device setting storage area 13 is used as the SIP session establishment message. Put in.
- the SIP server 301 transmits the received SIP session establishment message to the communication destination device 401.
- the communication destination device 401 puts the IP address information of the communication source device 200 in the response to the SIP session establishment message. As a result, a communication session is established between the selected IP layer relay device and the communication source device 200.
- a call session is established between the selected IP layer relay device and the communication destination device 401, and the IP layer relay device relays the call data to the communication source device 200.
- communication is performed.
- a call can be made between the source device 200 and the communication destination device 401.
- the relationship cannot be determined in the IP layer. It is possible to selectively use a pseudonym communication identifier or a kana communication identifier whose relationship can be determined.
- the configuration of the communication system 100 in the case of the present embodiment is the same as that of the first embodiment (FIG. 1).
- FIG. 9 is a block diagram showing the configuration of the communication source device 200 in the present embodiment.
- the communication source device 200 includes a communication type layer information storage area (communication type layer information storage means) 14 instead of the communication layer information storage area 9 (FIG. 2). This is different from the communication source device 200 according to the first embodiment.
- a communication type layer information storage area communication type layer information storage means 14 instead of the communication layer information storage area 9 (FIG. 2).
- FIG. 10 is a diagram illustrating an example of communication type layer information stored in the communication type layer information storage area 14.
- the communication type layer information indicates a correspondence relationship between the type of communication that can be executed by the communication unit 3 and a communication layer that requires pseudonymization of a communication identifier among a plurality of communication layers.
- the communication layers that need to be pseudonymized are the SIP layer and the IP layer.
- the communication type layer information it is assumed that communication layers that require pseudonymization of communication identifiers are listed in order from the upper layer. That is, it can be understood from the communication type layer information shown in FIG. 10 that the SIP layer is an upper layer and the IP layer is a lower layer.
- the communication layer that requires pseudonymization is the SMTP (Simple Mail Transfer Protocol) layer, which is a communication layer that delivers mail.
- SMTP Simple Mail Transfer Protocol
- FIGS. 11A and 11B are flowcharts showing the operation flow of the communication source device 200 in the present embodiment.
- step S31 and S32 are performed instead of step S4 (FIG. 5A) in the case of the first embodiment.
- the CPU 6 acquires the communication type layer information from the communication type layer information storage area 14 in step S31 after performing steps S1 to S3 as in the first embodiment.
- the CPU 6 refers to the communication type layer information to acquire information indicating a communication layer that needs to be pseudonymized.
- the operation is to execute a SIP phone or an operation to perform e-mail transmission.
- the SIP layer and the IP layer are acquired.
- step S5 subsequent to step S32 are the same as those in the first embodiment, and the description thereof is omitted.
- the communication layer that needs to be pseudonymized can be changed according to the type of communication, and not only when the communication unit 4 makes a call using SIP but also other communication.
- the possibility of determining the relationship between kana identifiers can also be controlled.
- the configuration of the communication system 100 in the case of the present embodiment is the same as that of the first embodiment (FIG. 1).
- FIG. 12 is a block diagram showing the configuration of the communication source device 200 in the present embodiment.
- the communication source device 200 includes a communication destination layer information storage area (communication destination layer information storage means) 15 instead of the communication layer information storage area 9 (FIG. 2). This is different from the communication source device 200 according to the first embodiment.
- FIG. 13 is a diagram illustrating an example of communication destination layer information stored in the communication destination layer information storage area 15.
- the communication destination layer information indicates a correspondence relationship between the communication identifier of the communication destination device 401 and a communication layer that requires pseudonymization of the communication identifier among a plurality of communication layers.
- the communication layers that need to be pseudonymized are the SIP layer and the IP layer.
- the communication layers that need to be pseudonymized are the SIP layer, the IP layer, and the Ethernet MAC. Layer (Ethernet is a registered trademark).
- the SIP layer is the highest communication layer
- the IP layer is a lower communication layer
- the Ethernet MAC layer is a lower communication layer than the IP layer. It has come to understand.
- FIG. 14 is a flowchart showing an operation flow of the communication source device 200 in the present embodiment.
- step S41 and S42 are performed instead of step S4 (FIG. 5A) in the case of the first embodiment.
- the CPU 6 acquires the communication destination layer information from the communication destination layer information storage area 15 in step S41 after performing steps S1 to S3 as in the first embodiment.
- the CPU 6 refers to the communication destination layer information to acquire information indicating a communication layer that needs to be pseudonymized.
- the communication destination is designated in the previous step S1, and therefore the CPU 6 recognizes the communication identifier of the communication destination device 401. If “10.10.10.10” is designated as the communication identifier of the communication destination device 401, the SIP layer and the IP layer are acquired as shown in FIG. 13 as communication layers that require pseudonymization.
- any communication identifier between “192.168.1.1” and “192.168.1.255” is specified as the communication identifier of the communication destination device 401, the communication that needs to be pseudonymized.
- a layer as shown in FIG. 13, a SIP layer, an IP layer, and an Ethernet MAC layer are acquired.
- step S5 following step S42 are the same as those in the first embodiment, and the description thereof is omitted.
- step S7 when three communication layers of SIP layer, IP layer, and Ethernet MAC layer are acquired as communication layers that need to be pseudonymized, in step S7, the relationship between the two lower layers (IP layer and Ethernet MAC layer) can be determined. Determine sex.
- the communication layer that needs to be pseudonymized can be changed according to the communication partner. Therefore, for example, when the communication destination device 401 exists on the same network as the communication source device 200, the pseudonym communication identifier can be used even in a lower communication layer.
- the configuration of the communication system 100 in the case of the present embodiment is the same as that of the first embodiment (FIG. 1).
- FIG. 15 is a block diagram showing the configuration of the communication source device 200 in the present embodiment.
- the communication source device 200 further includes a mobility information storage area (movement schedule information storage means) 16, and thus the communication source device according to the first embodiment described above. 200 (FIG. 2).
- mobility information indicating whether or not the communication source device 200 is likely to move is stored and held.
- This movement possibility information is, for example, information indicating the movement schedule of the user of the communication source device 200.
- FIG. 16 is a diagram showing an example of a relationship determination possibility determination rule stored and held in the relationship determination possibility determination rule storage area 10 in the case of this embodiment.
- the relationship discriminability determination rule storage area 10 stores the third rule in addition to the first rule similar to the first embodiment.
- the third rule is “if there is a possibility of movement and the kana communication identifier of the upper layer can be related and the kana communication identifier of the lower layer can also be related and determined. It is a rule with the content of “To do”.
- 17A and 17B are flowcharts showing the flow of operation of the communication source device 200 in the case of the present embodiment.
- step S51 and S52 are performed instead of step S7 (FIG. 5A) in the case of the first embodiment.
- step S51 after performing steps S1 to S6 as in the first embodiment, the CPU 6 acquires the mobility information from the mobility information storage area 16, Recognize its contents. That is, here, the control unit 2 functions as a movement schedule recognition unit.
- the CPU 6 determines the relationship determination possibility determination rule (in the present embodiment, the first rule and the third rule as shown in FIG. 16) acquired in the previous step 6, and the previous step S51. In accordance with the movement possibility information acquired in step 1, the relationship determination possibility of the kana communication identifier of the lower layer is determined.
- the CPU 6 tries to conform to the third rule (FIG. 16). That is, in this case, if it is determined in step S5 that the kana communication identifier of the upper layer is determined so that the relationship can be determined, the third rule can be applied. To be possible.
- the possibility of determining the relationship between lower layers is determined according to the possibility that the communication source device 200 moves. For example, when the communication source device 200 is a mobile terminal.
- the communication source device 200 is a mobile terminal
- the information “There is a possibility of moving” in the movement possibility information storage area 16 “the fact that the user is moving because the IP address changes due to roaming is notified to the communication destination device 401. It is possible to solve the problem of “being guessed”.
- the example in which the specific communication layer is the upper layer (the highest layer) has been described.
- a layer other than the upper layer a layer other than the highest layer
- only the rule that sets the relationship discriminability of each communication layer that needs to be pseudonymized as communication identifiers is used as the relational discriminant judgment rule.
- a rule that sets different relationship discrimination possibilities for each necessary communication layer may be used.
- the example in which the communication source device 200 determines the relationship determination possibility of the kana communication identifier used for communication by the communication source device 200 has been described.
- the kana communication identifier used by the communication source device 200 for communication is described.
- the relationship determination possibility of the kana communication identifier provided outside the communication source device 200 may be determined by the relationship determination possibility determination device.
- the relationship determination possibility is specified by the user in the communication source device 200, the specified relationship determination possibility is transferred from the communication source device 200 to the relationship determination possibility determination device. Notice.
- the communication source apparatus 200 has performed in each of the above embodiments.
- the relationship discrimination possibility of the kana communication identifier is determined, and the determined relationship determination possibility is notified to the communication source device 200.
- the processing after step S8 of each embodiment is performed according to the notified relationship determination possibility.
- a kana communication identifier when a kana communication identifier can be identified, if there is a kana identifier that is already used and can be identified, the kana communication identifier is reused for communication. However, even when the kana communication identifier can be determined as a relationship (whether or not a kana communication identifier that can be used as a relationship identifier already exists), a new kana can be determined as a relationship.
- a communication identifier may be generated, and communication may be performed using the generated kana communication identifier.
- the communication source device 200 of each of the above embodiments may be a communication terminal device that can use a Web application in addition to a SIP phone or an e-mail transmission.
- the processing in each embodiment can be implemented as a program executed by a computer.
- This program can be stored in various types of storage media, and can be transmitted via a communication medium.
- the storage medium includes, for example, a flexible disk, a hard disk, a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD, a ROM cartridge, a RAM memory cartridge with battery backup, a flash memory cartridge, a nonvolatile RAM cartridge, and the like.
- the communication medium includes a wired communication medium such as a telephone line, a wireless communication medium such as a microwave line, and the Internet.
- the present invention can be used for a recording medium storing a communication terminal device, a communication system, a communication method, and a program.
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Abstract
Description
J. Rosenberg著「Obtaining and Using Globally Routable User Agent (UA) URIs (GRUU) in the Session Initiation Protocol (SIP)」、Internet Engineering Task Force Internet-Draft、draft-ietf-sip-gruu-15、2007年10月11日、http://www.ietf.org/internet-drafts/draft-ietf-sip-gruu-15.txt
4 通信部(通信手段)
5 記憶部
9 通信レイヤ情報記憶領域(通信レイヤ情報記憶手段)
10 関係判別可能性判断ルール記憶領域(関係判別性判断ルール記憶手段)
11 IPアドレス設定記憶領域
12 SIP-URI設定記憶領域
13 IPレイヤ中継装置設定記憶領域
14 通信種類レイヤ情報記憶領域(通信種類レイヤ情報記憶手段)
15 通信先レイヤ情報記憶領域(通信先レイヤ情報記憶手段)
16 移動可能性情報記憶領域(移動予定情報記憶手段)
200 通信元装置(通信端末装置)
401 通信先装置
501 IPレイヤ中継装置(中継装置)
502 IPレイヤ中継装置(中継装置)
503 IPレイヤ中継装置(中継装置)
図6は第2の実施形態の場合の通信システム100の構成を示すブロック図である。
第3の実施形態では、通信の種類に応じて、通信識別子の仮名化が必要な通信レイヤを変更できる例を説明する。
第4の実施形態では、通信の相手に応じて、仮名化が必要な通信レイヤを変更できる例を説明する。
第5の実施形態では、通信元装置200が移動する可能性に応じて、下位レイヤの関係判別可能性を決定する例を説明する。
Claims (25)
- 複数の通信レイヤにより構成される通信を、通信識別子の仮名化が必要な通信レイヤにおいては仮名通信識別子を用いて行うことが可能な通信手段と、
前記通信手段により前記通信を行うに際し、通信識別子の仮名化が必要な通信レイヤの仮名通信識別子の関係判別可能性を決定する関係判別可能性決定手段と、
を備え、
前記関係判別可能性決定手段は、
前記複数の通信レイヤのうちの特定の通信レイヤの仮名通信識別子の関係判別可能性については、関係判別可能又は関係判別不可能のうちの指定された方に決定し、
前記複数の通信レイヤのうちの他の通信レイヤの仮名通信識別子の関係判別可能性については、前記特定の通信レイヤの仮名通信識別子が関係判別可能又は関係判別不可能の何れであるかに応じて、関係判別可能とするか関係判別不可能とするかを決定することを特徴とする通信端末装置。 - 特定の通信レイヤの仮名通信識別子の関係判別可能性に応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールを記憶保持した関係判別性判断ルール記憶手段を備え、
前記関係判別可能性決定手段は、前記関係判別性判断ルールに従って、前記他の通信レイヤの仮名通信識別子を関係判別可能とするか関係判別不可能とするかを決定することを特徴とする請求項1に記載の通信端末装置。 - 前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤを示す通信レイヤ情報を記憶保持した通信レイヤ情報記憶手段と、
前記通信レイヤ情報を参照することにより、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項2に記載の通信端末装置。 - 前記通信手段が実行可能な通信の種類と、前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤと、の対応関係を示す通信種類レイヤ情報を記憶保持した通信種類レイヤ情報記憶手段と、
前記通信種類レイヤ情報を参照することにより、前記通信手段が行う通信の種類に応じて、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項2に記載の通信端末装置。 - 通信先の装置の通信識別子と、前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤと、の対応関係を示す通信先レイヤ情報を記憶保持した通信先レイヤ情報記憶手段と、
前記通信先レイヤ情報を参照することにより、前記通信先の装置の通信識別子に応じて、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項2に記載の通信端末装置。 - 前記関係判別性判断ルールには、通信識別子の仮名化が必要な通信レイヤのうち、上位レイヤの通信識別子が関係判別不可能な仮名通信識別子であれば、下位レイヤの仮名通信識別子も関係判別不可能にする旨を示すルールが含まれることを特徴とする請求項2乃至5のいずれか一項に記載の通信端末装置。
- 前記関係判別性判断ルールには、通信識別子の仮名化が必要な通信レイヤのうち、上位レイヤの通信識別子が関係判別可能な仮名通信識別子であれば、下位レイヤの仮名通信識別子も関係判別可能にする旨を示すルールが含まれることを特徴とする請求項2乃至5のいずれか一項に記載の通信端末装置。
- 前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤを示す通信レイヤ情報を記憶保持した通信レイヤ情報記憶手段と、
前記通信レイヤ情報を参照することにより、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
当該通信端末装置の移動予定を示す移動予定情報を記憶保持した移動予定情報記憶手段と、
前記移動予定情報を参照することにより、当該通信端末装置の移動予定を認識する移動予定認識手段と、
当該通信端末装置の移動予定と、特定の通信レイヤの仮名通信識別子の関係判別可能性とに応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールを記憶保持した関係判別性判断ルール記憶手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記移動予定認識手段により認識された当該移動通信端末の移動予定と、前記関係判別性判断ルールと、に従って決定することを特徴とする請求項1に記載の通信端末装置。 - 通信識別子の仮名化が必要な通信レイヤのうちの少なくとも何れか1つの通信レイヤの仮名通信識別子を生成する仮名通信識別子生成手段を備えることを特徴とする請求項1乃至8のいずれか一項に記載の通信端末装置。
- 通信識別子の仮名化が必要な通信レイヤのうちの少なくとも何れか1つの通信レイヤにおいては、通信先装置との間の通信を中継可能な複数の中継装置の中から何れか1つを選択して通信を行うことにより、仮名通信識別子を用いた通信を行うことを行うことを特徴とする請求項1乃至9のいずれか一項に記載の通信端末装置。
- 前記特定の通信レイヤの関係判別可能性を関係判別可能又は関係判別不可能のうちの何れに指定するかをユーザに問い合わせる関係判別可能性問い合わせ手段を備えることを特徴とする請求項1乃至10のいずれか一項に記載の通信端末装置。
- 複数の通信レイヤにより構成される通信を、通信識別子の仮名化が必要な通信レイヤにおいては仮名通信識別子を用いて行うことが可能な通信端末装置が行うに際し、通信識別子の仮名化が必要な通信レイヤの仮名通信識別子の関係判別可能性を決定する関係判別可能性決定手段と、
決定した関係判別性可能性を前記通信端末装置に通知する通知手段と、
を備え、
前記関係判別可能性決定手段は、
前記複数の通信レイヤのうちの特定の通信レイヤの仮名通信識別子の関係判別可能性については、関係判別可能又は関係判別不可能のうちの指定された方に決定し、
前記複数の通信レイヤのうちの他の通信レイヤの仮名通信識別子の関係判別可能性については、前記特定の通信レイヤの仮名通信識別子が関係判別可能又は関係判別不可能の何れであるかに応じて、関係判別可能とするか関係判別不可能とするかを決定することを特徴とする仮名通信識別子の関係判別可能性決定装置。 - 特定の通信レイヤの仮名通信識別子の関係判別可能性に応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールを記憶保持した関係判別性判断ルール記憶手段を備え、
前記関係判別可能性決定手段は、前記関係判別性判断ルールに従って、前記他の通信レイヤの仮名通信識別子を関係判別可能とするか関係判別不可能とするかを決定することを特徴とする請求項12に記載の仮名通信識別子の関係判別可能性決定装置。 - 前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤを示す通信レイヤ情報を記憶保持した通信レイヤ情報記憶手段と、
前記通信レイヤ情報を参照することにより、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項13に記載の仮名通信識別子の関係判別可能性決定装置。 - 前記通信手段が実行可能な通信の種類と、前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤと、の対応関係を示す通信種類レイヤ情報を記憶保持した通信種類レイヤ情報記憶手段と、
前記通信種類レイヤ情報を参照することにより、前記通信手段が行う通信の種類に応じて、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項13に記載の仮名通信識別子の関係判別可能性決定装置。 - 通信先の装置の通信識別子と、前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤと、の対応関係を示す通信先レイヤ情報を記憶保持した通信先レイヤ情報記憶手段と、
前記通信先レイヤ情報を参照することにより、前記通信先の装置の通信識別子に応じて、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項13に記載の仮名通信識別子の関係判別可能性決定装置。 - 前記関係判別性判断ルールには、通信識別子の仮名化が必要な通信レイヤのうち、上位レイヤの通信識別子が関係判別不可能な仮名通信識別子であれば、下位レイヤの仮名通信識別子も関係判別不可能にする旨を示すルールが含まれることを特徴とする請求項13乃至16のいずれか一項に記載の仮名通信識別子の関係判別可能性決定装置。
- 前記関係判別性判断ルールには、通信識別子の仮名化が必要な通信レイヤのうち、上位レイヤの通信識別子が関係判別可能な仮名通信識別子であれば、下位レイヤの仮名通信識別子も関係判別可能にする旨を示すルールが含まれることを特徴とする請求項13乃至16のいずれか一項に記載の仮名通信識別子の関係判別可能性決定装置。
- 前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤを示す通信レイヤ情報を記憶保持した通信レイヤ情報記憶手段と、
前記通信レイヤ情報を参照することにより、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
当該通信端末装置の移動予定を示す移動予定情報を記憶保持した移動予定情報記憶手段と、
前記移動予定情報を参照することにより、当該通信端末装置の移動予定を認識する移動予定認識手段と、
当該通信端末装置の移動予定と、特定の通信レイヤの仮名通信識別子の関係判別可能性とに応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールを記憶保持した関係判別性判断ルール記憶手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記移動予定認識手段により認識された当該移動通信端末の移動予定と、前記関係判別性判断ルールと、に従って決定することを特徴とする請求項12に記載の仮名通信識別子の関係判別可能性決定装置。 - 通信端末装置と、
前記通信端末装置の通信相手となる通信先装置と、
を備え、
前記通信端末装置は、
複数の通信レイヤにより構成される通信を、通信識別子の仮名化が必要な通信レイヤにおいては仮名通信識別子を用いて行うことが可能な通信手段と、
前記通信手段により前記通信を行うに際し、通信識別子の仮名化が必要な通信レイヤの仮名通信識別子の関係判別可能性を決定する関係判別可能性決定手段と、
を備え、
前記関係判別可能性決定手段は、
前記複数の通信レイヤのうちの特定の通信レイヤの仮名通信識別子の関係判別可能性については、関係判別可能又は関係判別不可能のうちの指定された方に決定し、
前記複数の通信レイヤのうちの他の通信レイヤの仮名通信識別子の関係判別可能性については、前記特定の通信レイヤの仮名通信識別子が関係判別可能又は関係判別不可能の何れであるかに応じて、関係判別可能とするか関係判別不可能とするかを決定することを特徴とする通信システム。 - 特定の通信レイヤの仮名通信識別子の関係判別可能性に応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールを記憶保持した関係判別性判断ルール記憶手段を備え、
前記関係判別可能性決定手段は、前記関係判別性判断ルールに従って、前記他の通信レイヤの仮名通信識別子を関係判別可能とするか関係判別不可能とするかを決定することを特徴とする請求項20に記載の通信システム。 - 前記通信端末装置は、
前記複数の通信レイヤのうち通信識別子の仮名化が必要な通信レイヤを示す通信レイヤ情報を記憶保持した通信レイヤ情報記憶手段と、
前記通信レイヤ情報を参照することにより、通信識別子の仮名化が必要な通信レイヤを認識する要仮名化通信レイヤ認識手段と、
を備え、
前記関係判別可能性決定手段は、通信識別子の仮名化が必要であると認識された通信レイヤのうちの上位レイヤを前記特定の通信レイヤとして認識し、該上位レイヤの仮名通信識別子の関係判別可能性を前記指定された方に決定した後で、
前記他の通信レイヤの仮名通信識別子の関係判別可能性を、前記関係判別性判断ルールに従って決定することを特徴とする請求項21に記載の通信システム。 - 複数の通信レイヤにより構成される通信を、通信識別子の仮名化が必要な通信レイヤにおいては仮名通信識別子を用いて行うことが可能な通信手段により前記通信を行うに際し、通信識別子の仮名化が必要な通信レイヤの仮名通信識別子の関係判別可能性を決定する第1の過程を備え、
前記第1の過程は、
前記複数の通信レイヤのうちの特定の通信レイヤの仮名通信識別子の関係判別可能性については、関係判別可能又は関係判別不可能のうちの指定された方に決定する第2の過程と、
前記複数の通信レイヤのうちの他の通信レイヤの仮名通信識別子の関係判別可能性については、前記特定の通信レイヤの仮名通信識別子が関係判別可能又は関係判別不可能の何れであるかに応じて、関係判別可能とするか関係判別不可能とするかを決定する第3の過程と、
を含むことを特徴とする通信方法。 - 前記第3の過程では、
特定の通信レイヤの仮名通信識別子の関係判別可能性に応じて、他の通信レイヤの仮名通信識別子の関係判別可能性を関係判別可能とするか関係判別不可能とするかの判定に用いられる関係判別性判断ルールに従って、前記他の通信レイヤの仮名通信識別子を関係判別可能とするか関係判別不可能とするかを決定することを特徴とする請求項23に記載の通信方法。 - 複数の通信レイヤにより構成される通信を、通信識別子の仮名化が必要な通信レイヤにおいては仮名通信識別子を用いて行うことが可能な通信手段により前記通信を行うに際し、通信識別子の仮名化が必要な通信レイヤの仮名通信識別子の関係判別可能性を決定する第1の処理であって、
前記複数の通信レイヤのうちの特定の通信レイヤの仮名通信識別子の関係判別可能性については、関係判別可能又は関係判別不可能のうちの指定された方に決定する処理と、
前記複数の通信レイヤのうちの他の通信レイヤの仮名通信識別子の関係判別可能性については、前記特定の通信レイヤの仮名通信識別子が関係判別可能又は関係判別不可能の何れであるかに応じて、関係判別可能とするか関係判別不可能とするかを決定する処理と、
を含む処理をコンピュータに実行させることを特徴とするプログラムが格納された記録媒体。
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