WO2001044952A1 - Procede de communication de donnees, clients/serveur, et support d'enregistrement de programme de communication, - Google Patents
Procede de communication de donnees, clients/serveur, et support d'enregistrement de programme de communication, Download PDFInfo
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- WO2001044952A1 WO2001044952A1 PCT/JP2000/008897 JP0008897W WO0144952A1 WO 2001044952 A1 WO2001044952 A1 WO 2001044952A1 JP 0008897 W JP0008897 W JP 0008897W WO 0144952 A1 WO0144952 A1 WO 0144952A1
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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
Definitions
- the present invention relates to a data communication method, a client, a server, and a recording medium on which a communication program is recorded, and in particular, records a data communication method, a client, a server, and a communication program using a protocol defined between a client and a server. It relates to a recording medium.
- the standard network architecture for computer communications is defined by the International Organization for Standardization (Iso) and the International Brass and Telephone Consultative Committee (CCITT), currently the ITU-T (International Brass and Telephone Consultative Committee). It is defined as a reference model for OSI (Open Systems Interconnection).
- the OSI reference model is the physical layer (layer 1), data link layer (layer 2), network layer (layer 3), transport layer (layer 4), and session layer (layer 5).
- Layer a presentation layer (sixth layer), and an application layer (seventh layer).
- the fifth layer, the session layer performs synchronization and controls how data is sent in order to efficiently and retrieving data between processes at both ends of communication.
- WSP Wireless Application Protocol
- WAP Wireless Application Protocol Architecture Specification, WAP Architecture 30-Apr-1998) is used.
- rotoco I Wireless Application Protocol, Wireless Session Protocol Specification Version 228- May-1999
- HTTP Hyper Text Transfer Protocol
- WAP has the characteristics of a mobile terminal, such as low processing capacity, low memory and power resources, and small display equipment.
- This is a communication protocol and its execution environment group that have been proposed mainly for the purpose of using the Internet in mobile terminals, taking into account the characteristics of line transmission.
- WSP is a protocol that performs the same function as HTTP in a WAP network, and has a function equivalent to HTTP version 1.1.
- OTA protocol WAP Push OTA Protocol Proposed Version 16-August-1999 used in the push service for transmitting data from the server to the client. I do.
- FIG 4 shows the network architecture of WAP.
- WAP when connecting from a user terminal (WAP client 6) to a server having content (origin server 8), if the network to which the client belongs and the network to which the origin server belongs are different, A gateway or proxy-1 (WAP gateway / proxy-1 7) is used as an intermediary. If they belong to the same network, they may communicate directly.
- the WAP communication protocol is used to communicate with a WAP-equipped server or WAP gateway Z proxy 17 in the network to which the WAP client 6 belongs, and the WAP gateway proxy 17 Another communication protocol is used in another network between the server and the origin server 8.
- WSP which is the protocol of the session layer in WAP
- a connection-oriented communication service that establishes a session between communication ends is provided prior to data transmission.
- the WAP client plays the role of the client, the WAP gateway proxy, or the origin server that directly communicates with the client.
- FIG. 8A shows the sequence at the time of session establishment.
- S-Connect. Req The session establishment request
- Fig. 8A The session establishment message
- the session establishment message includes the type of the message (here, session establishment).
- the server returns a session establishment response message (Fig. 8F) in response to this session establishment message, and the session is established when the operation ends normally.
- Session-related operations include temporary release, restoration, and release in addition to the establishment described above. It is the client that generates each request and the server that generates the response.
- Figure 6 shows the sequence for transferring or requesting data from the client to the server.
- these primitives are called S-Method Inovke and S-ethodResult.
- S-Method Invoke.req data transfer or request request primitives
- the message includes the type of message (method in this case), the content of the request that specifies the data transfer or request, the communication destination, and the data.
- the server In response to this message, the server returns a method response message (Fig. 8F) using a lower-layer protocol (for example, transport protocol), and then sends a result to the client's data transfer or request, and a pre-transaction indicating the result transfer. It is transmitted using a result message (Fig. 8C) by mitigation (S-MethodResult).
- the result message contains the type of message (here the result) and the data.
- the client receiving the result message returns a result response message (Fig. 8F) to the server.
- the server is a WAP gateway / proxy, it communicates with the origin server and returns the result from the origin server to the client using the S-MethodResult primitive.
- S-MethodResu is always compatible with S-Method Invoke and cannot be used alone.
- Fig. 7 shows the sequence of data transfer from the server to the client by push.
- WSP this is called the S-ConfirmedPush primitive.
- Push is an operation in which data is transferred from a server to a client without a request from the client. In this operation, for example, in the architecture shown in Fig. 4, data is transferred from the origin server on the Internet to the client in the WAP network without any request from the client. Used in cases.
- the push message (Fig. 8D) includes the message type (here, push) and the data.
- the lower part of Fig. 7 shows the sequence for prompting the server to establish a session. In WAP, this is called the Push OTA Pom-SessionRequest primitive.
- Session establishment is only possible from the client, so the server prompts the client to establish a session.
- the server receives data for a client that has not established a session, it can prompt the establishment of a session and perform a push-initiated data transfer from the server.
- the session establishment reminder message includes the type of message (here, session establishment reminder).
- HTTP on the Internet does not define a protocol for session management or push, but it is almost the same as WSP for data requests and transfers.
- the functions of the client and the server are clearly separated, and each performs different operations. Basically, messages for session management start from the client, and the server responds to them.
- Push 0TA prepares a message to prompt the client from the server only for the session establishment operation. Data transfer can be started from both the client and server, but the messages used are not the same.
- a terminal used by a user is equipped with a client module, which communicates with an origin server equipped with a server module of the protocol in the same network, or a gateway equipped with the server module. It communicates with the origin server on another network using the proxy as a relay.
- the first problem is defined by the session layer client and server as described above. If a protocol that uses the protocol is used, mutual communication between clients equipped with the client module of the protocol cannot be performed.
- the reason is that in such a protocol, the message transmission direction defined by the protocol is determined, and the message processing method differs between the client and server, and the node that triggers the operation starts. Is fixed.
- the second problem is to implement a server protocol module on the terminal as the simplest solution for performing client-to-client communication. This means that memory resources are required.
- An object of the present invention is to enable mutual communication between clients via a relay server using a protocol defined by the client and the server. Disclosure of the invention
- a first client is provided.
- the relay server once receives the message sent from the server and specifying the second client as the communication destination, interprets that the message is addressed to the second client, and requests the message.
- the message is transmitted to the second client as a push message including the result transfer destination in the relay server as the destination of the content, the communication destination, and the data transmitted by the second client in the data part.
- the message is analyzed, and the result within the specified relay server By transmitting the result data for the request to the transfer destination, mutual communication between the clients is enabled.
- FIG. 1 is a diagram illustrating a configuration of the first embodiment.
- FIG. 2 is a diagram showing a configuration of a push message.
- FIG. 3 is a sequence diagram showing a data request or transfer.
- FIG. 4 is a diagram illustrating an example of a WAP network architecture.
- FIG. 5 is a sequence diagram showing the establishment of one session in the conventional example.
- FIG. 6 is a sequence diagram showing a conventional example 2 content request and its transfer.
- Fig. 7 is a sequence diagram showing a conventional example 3 session establishment prompt and confirmation push.
- FIGS. 8A to 8F are diagrams showing the configuration of various messages. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a configuration in which a first client 1 communicates with a second client 3 using a relay server 2.
- the first client 1 communicates with an application processing unit 1 ⁇ and a data management unit 12.
- the relay server 2 has a session management unit 21 and a data management unit 22, and the second client 3 has a session management unit 31, a data management unit 32, and an application processing unit 33. .
- the first client 1 and the relay server 2 and the relay server 2 and the second client 3 are connected by wired or wireless physical links 4 and 5, and are in a state where communication is possible.
- WTP Wireless Transact on Protocol
- TCP Transmissionmissive Control Protocol
- UDP User Datagram Protocol
- the first client 1 has a client module of a protocol defined between the client and the server, and includes an application processing unit 11 and a data management unit 12.
- the data management unit 12 includes a method start processing unit 121 and a method result processing unit 122 for exchanging messages for data transfer.
- Each processing unit receives a request from the application processing unit 11 and exchanges a message with the corresponding processing unit of the relay server 2 by using the above-mentioned protocol, whereby each service is transmitted to the application processing unit 11. provide.
- the method start processing unit 122 1 communicates with the first method start processing unit 22 1 of the relay server 2.
- a method that includes the contents of the request, such as destination or data transfer or request Send a message ( Figure 8B).
- the relay server 2 receives a method response message (FIG. 8F) for the method message from the first method start processing unit 221 of the relay server 2 and supplies a confirmation of the method start to the application processing unit ⁇ 1. I do.
- the met result processing unit 122 receives the result message (FIG. 8C) from the first met result processing unit 222 of the relay server 2 as a result of the request content of the method message, and outputs the result message.
- the result of the request content included in the data section of the request is extracted and supplied to the application processing section 11.
- a result response message (FIG. 8F) is transmitted to the first method result processing unit 222 of the relay server 2 according to the notification from the application processing unit 11.
- the application processing unit # 1 performs data transfer or a request to the method start processing unit 121. In response to a data transfer or request, it accepts a methed start confirmation that is performed when the methed start processing unit 12 1 receives a method response message from the relay server 2. Then, the application processing unit 11 is provided with the result of the data transfer or the request from the met result processing unit 122, and when the result of the data transfer request or the like is supplied, the met result result unit 1 22 Request a result response message to be sent.
- the relay server 2 has a server module of a protocol defined by the client and the server, and is composed of a session management unit 21 and a data management unit 22.
- the session management unit 21 exchanges messages for session management.
- Each processing unit exchanges a message with the corresponding processing unit of the second client 3 using the above-mentioned protocol.
- the establishment prompting processing unit 212 when no session has been established between the relay server 2 and the second client that is the destination of the method message, sets the data management unit 22 In response to the request for establishment from the first method start processing unit 221, a session establishment prompt message (Fig. 8E) is transmitted to the second client's establishment prompting unit 3 ⁇ 2.
- the establishment processing unit 211 receives the session establishment message (FIG. 8A) from the establishment processing unit 311 of the second client 3, and sends a session establishment response message (FIG. 8F) to the second client 3.
- the session is established by returning it to the establishment processing unit 311 and the session is added to the existing session table 213. Further, it notifies the first method start processing section 222 that the session establishment has been completed.
- the currently established session is registered in the existing session table 2 13, and the newly established session is registered by the notification from the establishment processing unit 2 11.
- the data management unit 22 exchanges messages for data transfer, a first method start processing unit 22 2, a first method result processing unit 22 2, a push processing unit 22 3,
- the second method start processing unit 224, the second method result processing unit 225, and the message management unit 22 that manages the correspondence of messages between the first client 1 and the second client 3. 6 is provided.
- Each processing unit exchanges a message with the corresponding processing unit of the first client 1 or the second client 3 using the protocol.
- the first method start processing unit 221 receives the method message from the method start processing unit 121 of the first client 1 and communicates with the second client. If it is, the existing session table 2 13 is inquired about whether a session exists between the second client 3 and the relay server 2. If the session has not been established, supply the request for establishment to the establishment promotion section 2 1 2. When the session has been established, or when the establishment processing unit 2-1 notifies that the session has been established, the method message is supplied to the push processing unit 23. Further, when receiving the method message from the method start processing unit 121 of the first client 1, it transmits a method response message to the method start processing unit 121 of the first client 1.
- the push processing unit 222 receives the communication destination and request included in the method message in the conventional data portion of the push message shown in FIG.
- the content, and in the case of data transfer, the data and the result in the relay server 2 to which the second client 3 sends the result to the request The transfer destination is designated and transmitted to the push processing unit 3 2 1 of the second client. Further, as a result of this, the transfer destination and the first client which made the request in the method message are associated with each other and notified to the message management unit. Also, it receives a push response message (FIG. 8F) from the push processing unit 321 of the second client.
- a push response message FIG. 8F
- the message management unit 222 stores the correspondence between the result transfer destination and the first client who made the request using the met message.
- the second method start processing unit 224 receives the method message from the second client method start processing unit 322, and based on the result transfer destination included in the message, the message management unit 224.
- the result is for the method message received from the first client, and the first client to which the data is to be transferred is searched for. From 22, it is supplied to the first method result processing section 222 together with the data section of the method message.
- the second method start processing unit 222 receives the method message from the second client method start processing unit 322, the second method start processing unit 322 of the second client receives the method message. Send a response message.
- the first method result processing unit 222 enters the data supplied from the second method start processing unit 224 into the data portion of the result message, and sets the first client as a communication destination with the first client. To the met result processing unit 122 of the client. When the result response message (FIG. 8F) is received from the first client's met result processing unit 122, the second client's met result result is sent to the second method result processing unit 222. Requests processing section 232 to send a result message.
- the second method result processing unit 222 transmits a result message to the second client in response to the request of the first method processing result unit 222.
- the second client receives a response result response message from the method result processing unit 3233 of the second client.
- the relay server 2 can know that the request from the first client to the second client is completed.
- the second client 3 is equipped with a client module of the above-mentioned protocol, and includes a session management unit 31, a data management unit 32 and an application processing unit 33.
- the session management section 31 includes an establishment processing section 311 for exchanging messages for session management, an establishment prompting processing section 312, and an existing session table 313.
- Each processing unit belonging to the session management unit 31 responds to the message from the relay server 2 or the request or response from the application processing unit 33 by using the above-mentioned protocol.
- Each service is provided to the application processing unit 33 by exchanging messages with the processing unit.
- the establishment prompting processor 3 12 supplies the session establishment instruction to the application processor 3 3.
- the establishment processing unit 3-1 receives a request for session establishment from the application processing unit 33, and transmits a session establishment message to the establishment processing unit 211 of the relay server 2.
- the establishment processing unit 311 receives the session establishment response message from the establishment processing unit 211 of the relay server 2, the establishment processing unit 311 adds the session of the existing session table 313 of the second client 3.
- the currently established session is registered in the existing session table 313, and the newly established session is registered by the notification from the establishment processing unit 311.
- the data management unit 32 exchanges messages for data transfer, from the push processing unit 321, the MET start processing unit 322, the MET result processing unit 32, and the relay server 2. And a message analyzer 324 for interpreting the message included in the push message and supplying an appropriate instruction to the application processor 33.
- Each of the three processing units belonging to the data management unit 32 exchanges a message with the corresponding processing unit of the relay server 2 to provide a service to the application processing unit 33, but the push processing unit 3 21 A message is supplied to the analysis unit 324, and a response is supplied from the application processing unit 33. This is because information that is not exchanged by conventional client-server communication may be included in the data.
- the push processing unit 32 ⁇ ⁇ ⁇ supplies the push message to the message analysis unit 324.
- a push response message is relayed by an instruction from the application processing unit 33. —Send to push processor 2 2 3 of bus 2.
- the message analyzer 324 analyzes the data part of the push message, and the request contents (operations, etc.) requested by the first client 1 which is the opposite client indicated by the message, and the request contents are transmitted by data transfer. If so, the transferred data and the result transfer destination are supplied to the application processing unit 33.
- the method start processing unit 3 222 sets the result transfer destination supplied from the application processing unit 3 3 as the communication destination, sets the data transfer as the request content, and receives the request from the first client supplied from the application processing unit 33.
- the relay server 2 transmits a met message in which the result of the request content is included in the data to the second met start processing unit 224 of the relay server 2. If the request content from the first client is a data request, the requested data is included in the data, and if it is a data transfer, the result of the data transfer is included in the data as a result of the request content. Also, the methed start processing unit 322 receives the methed response message from the second method start processing unit 224 of the relay server 2.
- the method result processing unit 323 When receiving the result message from the second method result processing unit 225 of the relay server 2, the method result processing unit 323 notifies the application processing unit 33 that the result message has been received. Further, as a result of this notification, a request response message is transmitted to the second method result processing unit of the relay server 2 in response to a request from the application processing unit 33.
- the push processing unit 3 Notify 2 ⁇ to send a push response message. Also, in accordance with the request of the first client 1 instructed from the message analysis unit 324, the request result and the result transfer destination are supplied to the method start processing unit 322. Further, when notified that the result message has been received from the method result processing unit 32 3, the relay unit 2 requests the second method result processing unit of the relay server 2 to transmit a result response message.
- the first client 1, the relay server 2, and the second client 3 each exchange a plurality of types of messages.
- the received message can be sorted to an appropriate processing unit by checking the information on the type included in the message.
- the second client 3 which is the client is designated as the communication destination when the first client 1 transmits the method message.
- the relay server 2 confirms the communication destination, and if a session has not been established for the client, prompts the establishment of the session and establishes the session, and transmits the method message from the first client 1 to the second. Resend as a push message to client 3.
- the method message received from the first client 1 at the relay server 2 corresponds to the result transfer destination in the relay server 2 designated as the destination of the data returned by the second client 3
- the data from the second client 3 is accurately relayed to the first client. By doing so, mutual communication between the first client 1 and the second client 3 is enabled.
- the application processing unit ⁇ 1 supplies a data transfer or a request to the second client 3 to the MET start processing unit 121 (MET start request: S 1), and the MET start processing unit 1 2 1 Sends the first method start processing unit 221 method message of the relay server 2 (S2).
- the met message includes the message type (here, met), the communication destination (here, the second client 3), the data transfer, or the request contents indicating the request.
- the first method start processing unit 22 1 of the relay server 2 From the type, communication destination, and request contents, it is recognized that the data transfer or request is to the second client 3.
- the existing session table 2 13 is inquired about whether a session exists with the second client 3 that is the communication destination, and if it does not exist, a session establishment prompt is issued. Further, the first method start processing unit 221 of the relay server 2 transmits a method response message to the method start processing unit 121 of the first client 1 (S3).
- the method start processing unit 121 of the first client Upon receiving the method response message from the first method start processing unit 22 1 of the relay server 2, the method start processing unit 121 of the first client performs a method start confirmation on the application. Supply to processing unit 11 (method start confirmation: S4).
- the establishment prompt is performed as follows.
- the operations for prompting session establishment and session establishment are the same as the conventional operations shown in Figs.
- An establishment prompting request is supplied from the first method start processing unit 2 2 1 to the establishment prompting unit 2 12 of the relay server 2, and the establishment prompting unit 2 1 2 sends a session establishment prompt message to the second To client 3.
- the establishment prompting processing unit 312 of the second client 3 which has received the session establishment prompting message supplies an instruction for session establishment to the application processing unit 33.
- the application processing unit 33 supplies a request for session establishment to the establishment processing unit 311.
- the establishment processing unit 311 sends a session establishment message to the establishment processing unit 211 of the relay server 2. I do.
- the establishment processing unit 211 of the relay server 2 Upon receiving the session establishment message, the establishment processing unit 211 of the relay server 2 returns a session establishment response message to establish the session, and as the existing session in the existing session table 211, the relay server 2 and the second client In addition to adding the session with the third client, the first method start processing unit 22 ⁇ is notified that the session establishment with the second client 3 is completed.
- the establishment processing unit 311 of the second client Upon receiving the session establishment response message from the establishment processing unit 211 of the relay server 2, the establishment processing unit 311 of the second client adds the session of the existing session table 313 of the second client 3. I do. If the session between Relay Server 2 and Second Client 3 has been established, or after the establishment is completed, communication from Relay Server 2 to Second Client 3 is performed.
- the first method start processing unit 2 12 of the relay server 2 issues a push request to the push processing unit 2 23 (push request: S 5).
- the method message received from the first client 1 by the first method start processing unit 221 of the relay server 2 is supplied to the push processing unit 223, and the first message is stored in the data part of the push message.
- the destination, the request content, and the data included in the method message from the client 1 and the destination in the relay server 2 that transmits the result to the second client 3 are designated as the result transfer destination, and the second destination is specified.
- Send to client 3 (S6).
- the result transfer destination specified here is associated with the client that transmitted the request (here, the first client ⁇ ), and is notified to the message management unit 226.
- the result data returned from the second client 3 can be accurately returned to the requesting client (here, the first client 1).
- This correspondence may be the correspondence between the requesting client and the result transfer destination, or the correspondence between the requested client and the met message and the result transfer destination.
- the push processor 321 of the second client 3 that has received the push message supplies the message to the message analyzer 324.
- the message analysis unit 3 2 4 analyzes the data portion of the push message to extract the request contents, data, and result transfer destination of the first client 1 and supply them to the application processing unit 33 (push instruction: S 7). .
- the application processing unit 33 notifies the push processing unit 321, so as to return the response of the push message (push response: S8), and transmits the push response message to the relay server 2 (S Along with 9), the result of the request content from the first client 1 and the result transfer destination are supplied to the method start processing unit 3222 (method start request: S10).
- the method start processing unit 3 2 2 sets the result transfer destination in the designated relay server 2 as the communication destination, the data transfer as the request content, and includes the result in the data. Is sent to the relay server 2 (S11).
- the second method start processing unit 224 of the relay server 2 inquires the message management unit 226 from the result transfer destination in the relay server 2 that has received the message, and sends the first client 1 It recognizes that the result is a method message received from the first client, and supplies the data part of the message to the first met result processing unit 222 with the first client 1 as a destination (method result request: S 14). Also, the second method start processing unit 224 of the relay server 2 transmits the method response message of the second client's method start processing unit 322 (S12) o. Then, the method start processing unit 322 of the second client confirms the start of the method to the application processing unit 33 (S13).
- the first method result processing unit 222 receives the request for the result of the method, inserts the data supplied from the second method start processing unit 224 into the data part of the result message, and sends the first client 1 (S15).
- the method result processing unit 122 of the first client 1 that has received the result message performs application processing on the result of the data transfer of the second client 3 or the result of the data request included in the data part of the result message.
- Supply to part 11 (method result indication: S16).
- the application processing unit ⁇ Upon receiving the method result instruction, the application processing unit ⁇ notifies the method result processing unit 122 of the transmission of the result response message (method result response: S17) and causes the transmission (S18). .
- the first method result processing unit 222 of the relay server 2 that has received the result response message requests the second method result processing unit 225 to send the result message (method result request: S 19 ), And send it (S20).
- the method result processing unit 323 of the second client 3 that has received the result message notifies the message reception to the application processing unit 33 (method result instruction: S21), and the application processing unit 33 sends a response to the method result. It is supplied to the processing unit 323 (method result response: S22).
- the met result processing unit 323 transmits a result response message to the relay server 2 (S23).
- the first client designates the second client 3 which is the client as the communication destination of the method message, and the relay server 2 transmits the method message of the first client 1 from the first client 1.
- the communication destination and the request contents, including the result transfer destination in the relay server 2 are transmitted to the second client 3 as a push message, and the second client 3 receiving the push message transmits the first client 1
- the first client 1 and the second client 3 can communicate with each other by transmitting the request result from the specified result transfer destination.
- the message configuration does not necessarily need to be as shown in the figure as long as the contents shown in FIG. 2 and FIGS. 8A to 8F can be confirmed at the receiving end.
- the data transfer message and the data request message may be divided into two types and the items of the request contents may be excluded.
- the first client, the relay server, and the second client in the first embodiment of the present invention each include a data processing device and a storage device, and further include a communication program. It has a storage medium for recording (not shown). This recording medium may be a magnetic disk, a semiconductor memory, a CD-ROM, or another recording medium.
- the communication program for controlling the first client is read from the recording medium into the storage device of the first client, and causes the data processing device to generate the data management unit 12 and control its operation.
- the data processing device executes the same processing as the communication processing by the data management unit 12 of the first client in the first embodiment under the control of the communication program.
- the communication program for controlling the second client is read from the recording medium into the storage device of the second client, and the data processing device generates the session management unit 31 and the data management unit 32. Control behavior.
- the data processing device executes the same processing as the communication processing by the session management unit 31 and the data management unit 32 of the second client in the first embodiment under the control of the communication program.
- the communication program for controlling the relay server is read from the recording medium into the storage device of the relay server, and causes the data processing device to generate the session management unit 21 and the data management unit 22 and control the operation thereof.
- the data processing device controls the communication program. The same processing as the communication processing by the session management unit 21 and the data management unit 22 of the relay server according to the first embodiment is executed.
- mutual communication using a server as a relay can be performed between a client and a client having a client module of a protocol defined by the server.
- the reason is that the first client sends a method message specifying the second client as the communication destination, and the relay server that received the method message recognizes that it is communication between clients, If a session between the relay server and the second client has not been established, it is established, and the destination in the method message, the request, the data, and the result in the relay server as the destination of the result of the second client
- a push message that specifies a transmission destination is sent to a second client, and the second client that receives the push message analyzes the push message and specifies a requested result.
- the result message in the relay server is sent to the destination, and the relay server sends the result message and the It is for taking a correspondence between client Bok of method on message.
Description
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AU18914/01A AU1891401A (en) | 1999-12-16 | 2000-12-15 | Data communication method, client, server, and recorded medium where communication program is recorded |
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JP35748799A JP3296354B2 (ja) | 1999-12-16 | 1999-12-16 | データ通信方法、クライアント、サーバ及び通信プログラムを記録した記録媒体 |
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KR20030085674A (ko) * | 2002-04-30 | 2003-11-07 | (주)한넷웨어 | 무선망 환경에서 주기적인 푸시 정보를 전송하는 시스템및 방식 |
US7539856B2 (en) * | 2003-05-27 | 2009-05-26 | Microsoft Corporation | Distributed authentication in a protocol-based sphere of trust in which a given external connection outside the sphere of trust may carry communications from multiple sources |
WO2015001671A1 (ja) * | 2013-07-05 | 2015-01-08 | 株式会社日立製作所 | 通信制御装置、通信制御装置の制御方法、及び情報処理システム |
Citations (1)
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---|---|---|---|---|
JPH10308766A (ja) * | 1997-05-02 | 1998-11-17 | Nippon Telegr & Teleph Corp <Ntt> | メッセージ配送確認方法及びその装置並びにメッセージ配送確認用プログラムを記憶した記憶媒体 |
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1999
- 1999-12-16 JP JP35748799A patent/JP3296354B2/ja not_active Expired - Fee Related
-
2000
- 2000-12-15 AU AU18914/01A patent/AU1891401A/en not_active Abandoned
- 2000-12-15 WO PCT/JP2000/008897 patent/WO2001044952A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10308766A (ja) * | 1997-05-02 | 1998-11-17 | Nippon Telegr & Teleph Corp <Ntt> | メッセージ配送確認方法及びその装置並びにメッセージ配送確認用プログラムを記憶した記憶媒体 |
Non-Patent Citations (2)
Title |
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"WAP push OTA protocol ,VERSION 08-NOV.-1999", WAP FORUM, XP002937367 * |
HARUMI YASUI ET AL.: "Keitai denwa ga web tanmatsu ni bakeru; te no hira ni noru internet", NIKKEI COMMUNICATION, vol. 289, 1 March 1999 (1999-03-01), pages 104 - 110, XP002937366 * |
Also Published As
Publication number | Publication date |
---|---|
JP2001177553A (ja) | 2001-06-29 |
JP3296354B2 (ja) | 2002-06-24 |
AU1891401A (en) | 2001-06-25 |
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