Communication terminal apparatus, communication connection apparatus, and communication method using them

Abstract

In the conventional network using the PPP stipulated by RFC1661, the LCP phase to establish an LCP link, the authentication phase, and the NCP phase such as address assignment processing of the NCP are sequentially conducted each time the line connection is performed, and hence the connection takes a certain period of time. Particular, in the case of the mobile communication, there is often performed operation in which connection and disconnection are frequently conducted in a short period of time, and hence when the operation up to the connection takes a long period of time, the usability is deteriorated. Therefore, a need exists for a configuration of an apparatus and a communication method to reduce the connection time. In the configuration, control information such as authentication policy and protocols for use beforehand determined in the communication system are set to each apparatus to conduct communication such that the respective processing phases of the LCP, authentication, and NCP processing phases are executed in parallel according to the values set as above. Also, in the configuration, the communication between the apparatuses is conducted using a combined PPP packet created by combining with each other the respective packets of the LCP, authentication, and NCP packets as the PPP packets to be communicated in the respective phases to thereby perform the PPP connection.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[FIG. 1] Network configuration diagram showing a configuration example of a communication system using a communication terminal apparatus and a network access apparatus.

[FIG. 2] Functional configuration diagram showing a functional configuration example of a mobile station.

[FIG. 3] Functional configuration diagram showing a functional configuration example of a network access apparatus (access server).

[FIG. 4] Frame layout diagram showing a frame layout example of a PPP packet.

[FIG. 5] Operation sequence diagram to explain an operation example of a communication system.

[FIG. 6] Operation flowchart showing an operation example (transmission-side operation example) of a station.

[FIG. 7] Frame layout diagram showing a layout example of frame data which a mobile station transmits to an access server.

[FIG. 8] Operation flowchart showing an operation example (receiving-side operation example) of an access server.

[FIG. 9] Frame layout diagram showing a layout example of frame data which an access server transmits to a mobile station.

[FIG. 10] Frame layout diagram showing another layout example of frame data which a mobile station transmits to an access server.

[FIG. 11] Frame layout diagram showing another layout example of frame data which an access server transmits to a mobile station.

[FIG. 12] Operation flowchart showing an operation example (transmission-side operation example) of an access server.

[FIG. 13] Operation sequence diagram to explain another operation example of a communication system.

[FIG. 14] Frame layout diagram showing another layout example of frame data which a station transmits to an access server.

[FIG. 15] Frame layout diagram showing another layout example of frame data which an access server transmits to a mobile station.

[FIG. 16] Frame layout diagram showing a layout example of frame data communicated between an access server and a mobile station.

[FIG. 17] Operation sequence diagram to explain another operation example of a communication system.

Claims

1. A communication terminal apparatus to be connected to a communication network through a control operation using a Point to Point Protocol (PPP), characterized by comprising: a phase information combination section for combining a plurality of control phase information items regarding the PPP with each other;an encapsulation section for converting data created by the phase information combination section to conform to the communication network; anda data transmission section to transmit the data converted by the phase information combination section via the communication network to a communication apparatus as a destination.

2. A communication terminal apparatus to be connected to a communication network using a Point to Point Protocol (PPP), characterized by comprising: a plurality of phase processing sections for executing a plurality of control processings for the PPP connection in parallel;a data receiving section for receiving data via the communication network from a communication partner;a packet development section for discriminating a phase information item in the data received by the receiving section and transmitting the phase information item to a phase processing section conforming thereto;a phase information combination section for receiving the phase information items processed by the plural phase processing sections and combining the plural phase information items with each other;an encapsulation section for converting data created by the phase information combination section to conform to the communication network; anda data transmission section for transmitting the data converted by the encapsulation section via the communication network to the communication partner.

3. A communication terminal apparatus according to claim 2, characterized in that the phase processing section comprises an LCP phase processing section, an authentication phase processing section, and an NCP phase processing section.

4. A communication terminal apparatus according to claim 1, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

5. A communication terminal apparatus according to claim 2, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

6. A communication terminal apparatus according to claim 3, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

7. A network access apparatus to connect a communication terminal apparatus to a communication network using a Point to Point Protocol (PPP), characterized by comprising: a phase information combination section for combining a plurality of control phase information items regarding the PPP with each other;an encapsulation section for converting data created by the phase information combination section to conform to the communication network; anda data transmission section to transmit the data converted by the encapsulation section to the communication terminal apparatus.

8. A network access apparatus to connect a communication terminal apparatus to a communication network using a Point to Point Protocol (PPP), characterized by comprising: a plurality of phase processing sections for executing a plurality of control processings for the PPP connection in parallel;a data receiving section for receiving data via the communication terminal apparatus;a packet development section for discriminating a phase information item in the data received by the receiving section and transmitting the phase information item to a phase processing section conforming thereto;a phase information combination section for receiving the phase information items processed by the plural phase processing sections and combining the plural phase information items with each other;an encapsulation section for converting data created by the phase information combination section to conform to the communication network; anda data transmission section for transmitting the data converted by the encapsulation section via the communication network to the communication terminal apparatus.

9. A network access apparatus according to claim 8, characterized in that the phase processing section comprises an LCP phase processing section, an authentication phase processing section, and an NCP phase processing section.

10. A network access apparatus according to claim 7, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

11. A network access apparatus according to claim 8, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

12. A network access apparatus according to claim 9, characterized in that the phase information combination section combines an LCP information item, an authentication information item, and an NCP information item with each other.

13. A communication method of conducting communication between a communication terminal apparatus and a network access apparatus connected to a communication network using a Point to Point Protocol (PPP), characterized by comprising the steps of: executing, by a transmission-side apparatus, a plurality of control processings for the PPP connection in parallel; creating a plurality of information items regarding control phases; and transmitting first data created by combining the plural information items, via the communication network to a receiving-side apparatus; anddiscriminating, by the receiving-side apparatus, respective information items in the received first data created by combining the plural information items; executing a plurality of control processings corresponding to the information items in parallel; and transmitting second data created by combining information items regarding plural control results, via the communication network to the transmission-side apparatus.