JP4138802B2 - Communication apparatus and communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten time until connection is released after a user requests interruption. <P>SOLUTION: After a packet connection procedure is started, smreg-PDP-deactivate. req is transmitted from a packet transmission interruption request part 102 to a packet transmission interruption request detection part 203. When the packet transmission interruption request detection part 203 receives the smreg-PDP-deactivate. req, a connection state detection part 204 acquires information on a connection state between a network establishment part 210 and a network 300. If a point of acquiring the information on the connection state is before a SECURITY MODE COMMAND is transmitted from the network 300 to a packet connection establishment part 212 of an MTF 200, a packet transmission interruption request processing part 205 omits a standby state and instantaneously transmits an instruction that the packet connection procedure is interrupted to the network connection establishment part 210. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

The present invention relates to a communication apparatus and a communication method that efficiently perform connection interruption at the time of communication connection.

When the communication device performs packet transmission, it establishes an RRC connection (wireless procedure) with the network, and after establishing the packet connection, performs packet transmission. Then, as a procedure for establishing a packet connection, the communication device sends a SECURITY MODE COMMAND (encryption) sent from the network to the MTF (a program for controlling communication with the network in the communication device). Including processing such as request). The communication device then sends SECURITY MODE COMPLETE (notifies acceptance of SECURITY MODE COMMAND) to the network, and then sends ACTIVATE PDP CONTEXT REQUEST (including a packet connection establishment declaration, etc.) from the network. ACTIVATE PDP CONTEXT ACCEPT (notifying acceptance of ACTIVATE PDP CONTEXT REQUEST) By completing this procedure, a packet connection is established, and packets can be transmitted / received to / from the network.
3GPP TS 24.008 V3.19.0 (2004-06) 3rd GenerationPartnership Project; Technical Specification Group Core Network; Mobile radio interfacelayer 3 specification; Core Network Protocols-Stage 3 (Release 1999), [online], June 12, 2004, [ Search on September 28, 2005] Internet <URL: http://www.3gpp.org/ftp/Specs/2005-09/R1999/24_series/24008-3j0.zip>

  However, once the packet connection procedure starts, the standard determines that the procedure for establishing a packet connection will be performed even if the user requests to interrupt the packet transmission on the way. The connection is interrupted. For this reason, there is a delay in the time from when the user requests interruption of packet transmission until the packet connection is interrupted.

  Therefore, in order to solve the above-described problem, an object of the present invention is to provide a communication apparatus and method capable of reducing the time from when a user requests interruption until the connection is released.

In order to solve the above-described problems, a communication device according to the present invention includes a connection unit that starts a connection procedure with a network based on a call origination request from a user, and a connection between the network and the connection procedure by the connection unit. A connection establishment means for starting a connection establishment procedure determined in advance, and a call interruption request is detected before receiving a predetermined instruction signal from the network in response to a notification indicating that the connection establishment means starts the connection establishment procedure . The connection procedure by the connection means is interrupted, and when the call establishment request is detected after the connection establishment means receives a predetermined instruction signal , the connection procedure by the connection means is interrupted after the connection establishment procedure is completed. Connection interruption means.

The communication method of the present invention includes a connection step for starting a connection procedure with a network based on a call request from a user, and a connection establishment procedure predetermined with the network in the connection procedure by the connection step. A connection establishment step of starting the connection, and when a call interruption request is detected before receiving a predetermined instruction signal from the network in response to a notification indicating that the connection establishment step starts a connection establishment procedure , the connection by the connection step A connection interruption step of interrupting the connection procedure by the connection step after the connection establishment procedure is completed when the call establishment interruption request is detected after the connection establishment step receives the predetermined instruction signal after the connection establishment step has been received ; I have.

  According to the present invention, when a call interruption request is detected before the connection establishment procedure is started, the connection procedure is interrupted without waiting for the connection establishment procedure to be completed. As a result, it is possible to shorten the time from when the user requests the transmission interruption until the connection with the network is completely released by about 1 second to 2 seconds.

According to the present invention, it is possible to shorten the time from when the user requests interruption until the connection is released.

  FIG. 1 is a block configuration diagram of a communication apparatus 1 according to the present embodiment.

  As shown in FIG. 1, the communication device 1 according to the present embodiment includes an operation unit 10, a display unit 20, a TAF 100 that is a program for controlling exchanges between a user and an interface unit in the communication device, and communication. The apparatus includes an MTF 200 that is a program for controlling exchanges with the network 300. In the present embodiment, the network 300 includes a base station and an exchange.

  The operation unit 10 is a part where the user performs a manual operation, and is provided with operation buttons and the like. The user inputs a request for packet transmission or packet transmission interruption from the operation unit 10, and the input request is transmitted to the TAF 100.

  The display unit 20 is a part that presents the state of network connection and the like to the user, and receives information from the TAF 100.

  The TAF 100 includes a packet transmission requesting unit 101, a packet transmission interruption requesting unit 102, and a release notification receiving unit 103.

  The packet transmission request unit 101 is connected to the packet transmission request detection unit 201 of the MTF 200, and transmits a signal to the packet transmission request detection unit 201 when a packet transmission is requested via the operation unit 10 from the user.

The packet transmission interruption request unit 102 is connected to the packet transmission interruption request detection unit 203 of the MTF 200, and when a packet transmission interruption is requested through the operation unit 10 from the user, a signal is sent to the packet transmission interruption request detection unit 203. send.

The release notification reception unit 103 is connected to the release notification transmission unit 206 of the MTF 200, and is transmitted from the release notification transmission unit 206 when the connection between the packet connection establishment unit 212 of the MTF 200 and the network 300 is released. Smreg-PDP-deactivate indicating connection release notification
Receive .cnf.

  The MTF 200 includes a packet transmission request detection unit 201, a packet transmission request processing unit 202, a packet transmission interruption request detection unit 203, a connection state detection unit 204, a packet transmission interruption request processing unit 205 (connection interruption unit), and a release. A notification transmission unit 206 and a network connection establishment unit 210 (connection means, connection establishment means) are provided.

  The packet transmission request detection unit 201 is connected to the packet transmission request unit 101 and the packet transmission request processing unit 202, detects a signal output from the packet transmission request unit 101, and instructs the packet transmission request processing unit 202 to To send.

The packet transmission request processing unit 202 is connected to the packet transmission request detection unit 201 and the network connection establishment unit 210. Based on a command output from the packet transmission request detection unit 201, the packet transmission request processing unit 202 transmits a network 300 to the network connection establishment unit 210. Send a command to start the connection procedure.

  The packet transmission interruption request detection unit 203 is connected to the packet transmission interruption request unit 102 and the connection state detection unit 204, and detects a signal output from the packet transmission interruption request unit 102. Then, the packet transmission interruption request detection unit 203 detects a connection state detection command for acquiring information on the network connection state from the network connection establishment unit 210 at the time when the signal output from the packet transmission interruption request unit 102 is detected. Calls to the unit 204.

The connection state detection unit 204 is connected to the packet transmission interruption request detection unit 203, the packet transmission interruption request processing unit 205, and the network connection establishment unit 210. Then, the connection state detection unit 204 receives the network connection state information at the time of receiving the command output from the packet transmission interruption request detection unit 203 based on the command output from the packet transmission interruption request detection unit 203. Acquired from the establishing unit 210 and transmits the acquired information to the packet transmission interruption request processing unit 205.

The packet transmission interruption request processing unit 205 is connected to the connection state detection unit 204 and the network connection establishment unit 210, and based on the network connection state information transmitted from the connection state detection unit 204, the network connection establishment unit 210. Sends a command to interrupt the connection procedure with the network 300.

Specifically, the information transmitted from the connection state detection unit 204 to the packet transmission interruption request processing unit 205 is a state after the packet connection establishment unit 212 of the network connection establishment unit 210 receives the SECURITY MODE COMMAND. , The packet transmission interruption request processing unit 205 waits for interruption processing. Note that SECURITY MODE COMMAND means a confidential process such as an encryption request from the network 300. Then, the packet connection establishment unit 212 transmits SECURITY MODE COMPLETE indicating acceptance of SECURITY MODE COMMAND and ACTIVATE PDP CONTEXT REQUEST indicating packet connection establishment declaration to the network 300, and ACTIVATE PDP from the network. ACTIVATE PDP CONTEXT ACCEPT indicating acceptance of CONTEXTREQUEST is received. As a result, a packet connection is established between the packet connection establishment unit 212 of the network connection establishment unit 210 and the network 300. Thereafter, the packet transmission interruption request processing unit 205 transmits a command for interrupting the packet connection to the network connection establishment unit 210.

That is, when the packet connection establishment unit 212 of the network connection establishment unit 210 detects a call interruption request before starting the connection establishment procedure for the data communication connection for concealment, which is predetermined with the network 300, A command to interrupt the connection procedure is sent to the network connection establishment unit 210. When a call interruption request is detected after the connection establishment procedure is started, a command to interrupt the connection procedure is sent to the network connection establishment unit 210 after the connection establishment procedure is completed.

As a result, when the communication device 1 detects a call interruption request after executing the concealment procedure, the communication device 1 reliably confirms the identity of the communication partner by executing the concealment procedure in a single sequence without any interruption processing. In addition, there is no room for interrupt such as perjury, and high-security communication can be performed. On the contrary, when the communication apparatus 1 detects a transmission interruption request before executing the concealment procedure, it is possible to perform highly secure communication by performing the process before executing the concealment procedure.

The information transmitted from the connection state detection unit 204 to the packet transmission interruption request processing unit 205 is the state before the packet connection establishment unit 212 of the network connection establishment unit 210 receives the SECURITY MODE COMMAND from the network 300. In this case, the packet transmission interruption request processing unit 205 immediately transmits an instruction to interrupt the packet connection to the network connection establishment unit 210 without performing a command transmission process.

  The release notification transmission unit 206 is connected to the release notification reception unit 103 and the network 300. The release notification transmission unit 206 receives DEACTIVATE PDP CONTEXT ACCEPT indicating the packet connection interruption acceptance transmitted from the network 300 when the connection between the packet connection establishment unit 212 of the MTF 200 and the network 300 is released. Send smreg-PDP-deactivate.cnf to the release notification receiver 103.

  The network connection establishment unit 210 includes an RRC connection establishment unit 211 and a packet connection establishment unit 212 (connection establishment means).

  The RRC connection establishment unit 211 is a part that establishes an RRC connection, which is a wireless communication connection procedure, with the network 300 according to an instruction from the packet transmission request processing unit 202.

The packet connection establishment unit 212 is a part that establishes a packet communication connection with the network 300, and the packet connection procedure is started after the RRC connection is established. If the packet connection is established, the communication apparatus 1 and the network are connected. Packets can be transmitted / received to / from 300.

Next, the operation of the communication apparatus 1 configured as described above will be described.

  First, the operation of the communication apparatus 1 when the packet connection establishment unit 212 of the MTF 200 receives a suspend request after receiving the SECURITY MODE COMMAND from the network 300 will be described with reference to FIG.

  FIG. 2 is a sequence diagram showing operations of the communication apparatus 1 and the network 300 when the packet connection establishment unit 212 receives an interruption request after receiving the SECURITY MODE COMMAND from the network 300.

When the user requests packet transmission via the operation unit 10 in the standby state, the packet transmission request unit 101 of the TAF 100 sends a smreg-PDP-activate indicating a packet transmission request to the packet transmission request detection unit 201 of the MTF. .req is transmitted (S101). When the packet transmission request detection unit 201 of the MTF 200 receives smreg-PDP-activate.req, the RRC connection establishment unit 211 of the MTF 200 starts an RRC connection establishment procedure with the network 300 (S102).

When the RRC connection establishment procedure is completed and the RRC connection is established between the RRC connection establishment unit 211 of the MTF 200 and the network 300, the packet connection establishment unit 212 of the MTF 200 issues a packet connection procedure start declaration to the network 300. The SERVICE REQUEST shown is transmitted (S103). Thereafter, the packet connection establishment unit 212 of the MTF 200 starts a packet connection procedure with the network 300.

When a packet connection procedure is started between the packet connection establishment unit 212 of the MTF 200 and the network 300, and a predetermined time elapses, the network 300 transmits a SECURITY MODE COMMAND to the packet connection establishment unit 212 of the MTF 200 (S104). ). At this time, the packet transmission interruption request unit 102 of the TAF 100 transmits smreg-PDP-deactivate.req indicating the packet transmission interruption request to the packet transmission interruption request detection unit 203 of the MTF 200 (S105). The packet transmission interruption request detection unit 203 of the MTF 200 performs smreg-PD
When P-deactivate.req is received, the connection state detection unit 204 of the MTF 200 acquires information on the connection state between the network connection establishment unit 210 of the MTF 200 and the network 300.

In this operation, since the connection state information is acquired after the packet connection establishment unit 212 of the MTF 200 receives SECURITY MODE COMMAND from the network 300, the packet transmission interruption request processing unit 205 waits for interruption processing. .

  While the packet transmission interruption request processing unit 205 of the MTF 200 is waiting for interruption processing, the packet connection establishment unit 212 of the MTF 200 transmits SECURITY MODE COMPLETE to the network 300 (S106). Thereafter, the packet connection establishment unit 212 of the MTF 200 transmits ACTIVATE PDP CONTEXT REQUEST to the network 300 (S107), and receives ACTIVATE PDP CONTEXT ACCEPT from the network (S108). Thereby, a packet connection is established between the packet connection establishment unit 212 of the MTF 200 and the network 300.

  When the packet connection is established, the packet transmission interruption request processing unit 205 sends a command to the network connection establishment unit 210 to interrupt the packet connection. Thereafter, the packet connection establishment unit 212 of the MTF 200 transmits a DEACTIVATE PDP CONTEXT REQUEST indicating a packet connection interruption request to the network 300 (S109).

  When the network 300 receives the DEACTIVATE PDP CONTEXT REQUEST, the network 300 sends a DEACTIVATE PDP CONTEXT ACCEPT to the release notification sending unit 206 of the MTF 200 (S110), and between the packet connection establishment unit 212 of the MTF 200 and the network 300. The packet connection is interrupted.

When the packet connection between the packet connection establishment unit 212 of the MTF 200 and the network 300 is interrupted, the release notification transmission unit 206 of the MTF 200 sends a smreg-
PDP-deactivate.cnf is transmitted (S111). Thereafter, the RRC connection establishment unit 211 of the MTF 200 starts an RRC connection release procedure S112 with the network 300, and releases the RRC connection between the RRC connection establishment unit 211 of the MTF 200 and the network 300 (S112).

In addition, after the packet connection establishment unit 212 of the MTF 200 receives the SECURITY MODE COMMAND, when the packet transmission interruption request detection unit 203 of the MTF 200 receives smreg-PDP-deactivate.req, The procedure is the same as this operation.

  Next, the operation of the communication apparatus 1 when the packet connection establishment unit 212 of the MTF 200 makes a suspend request before receiving the SECURITY MODE COMMAND from the network 300 will be described with reference to FIG.

  FIG. 3 is a sequence diagram showing operations of the communication apparatus 1 and the network 300 when the packet connection establishment unit 212 makes a suspend request before receiving the SECURITY MODE COMMAND from the network 300.

When the user requests packet transmission via the operation unit 10 in the standby state, the packet transmission request unit 101 of the TAF 100 transmits smreg-PDP-activate.req (S101). When the packet transmission request detection unit 201 of the MTF 200 receives smreg-PDP-activate.req, the RRC connection establishment unit 211 of the MTF 200 performs an RRC connection establishment procedure with the network 300 according to an instruction from the packet transmission request processing unit 202. Is started (S102).

When the RRC connection establishment procedure is completed and the RRC connection is established between the RRC connection establishment unit 211 of the MTF 200 and the network 300, the packet connection establishment unit 212 of the MTF 200 transmits a SERVICE REQUEST to the network 300. (S103). Thereafter, the packet connection establishment unit 212 of the MTF 200 starts a packet connection procedure with the network 300.

  After the packet connection procedure is started between the packet connection establishment unit 212 of the MTF 200 and the network 300, the packet transmission interruption request unit 102 of the TAF 100 sends a smreg-PDP- to the packet transmission interruption request detection unit 203 of the MTF 200. A deactivate.req is transmitted (S113). When the packet transmission interruption request detection unit 203 of the MTF 200 receives smreg-PDP-deactivate.req, the connection state detection unit 204 of the MTF 200 acquires information on the connection state between the network connection establishment unit 210 of the MTF 200 and the network 300. To do.

In this operation, since the connection state information is acquired before the packet connection establishment unit 212 of the MTF 200 receives the SECURITY MODE COMMAND from the network 300, the packet transmission interruption request processing unit 205 performs a command transmission process. Instead, a command to interrupt the packet connection procedure is immediately sent to the network connection establishment unit 210.

Thereafter, the packet connection establishment unit 212 of the MTF 200 transmits a SIGNALLING CONNECTIONRELEASE INDICATION indicating a packet connection procedure interruption request to the network 300 (S114). When the network 300 receives the SIGNALLING CONNECTION RELEASE INDICATION, the packet connection procedure between the packet connection establishment unit 212 of the MTF 200 and the network 300 is interrupted.

  When the packet connection procedure between the packet connection establishment unit 212 of the MTF 200 and the network 300 is interrupted, the release notification transmission unit 206 of the MTF 200 sends smreg-PDP-deactivate.cnf to the release notification reception unit 103 of the TAF 100. Make a call (S115). Thereafter, the RRC connection establishment unit 211 of the MTF 200 starts an RRC connection release procedure S112 with the network 300, and releases the RRC connection between the RRC connection establishment unit 211 of the MTF 200 and the network 300 (S116).

Further, before the packet connection establishment unit 212 of the MTF 200 receives the SECURITY MODE COMMAND, the packet transmission interruption request detection unit 203 of the MTF 200 performs the smreg-PDP-deactivate
As long as .req is received, the procedure is the same as this operation regardless of the timing.

  According to this operation, the connection procedure by the network connection establishment unit 210 of the MTF 200 is interrupted without waiting for completion of the procedures of SECURITY MODE COMMAND, SECURITY MODE COMPLETE, ACTIVATEPDP CONTEXT REQUEST, and ACTIVATE PDP CONTEXT ACCEPT. Thereby, it is possible to shorten the time from when the user requests the packet transmission interruption until the connection between the network connection establishment unit 210 of the MTF 200 and the network 300 is completely released by about 1 second to 2 seconds. it can.

  In the present invention, any communication method using a PS (Packet Domain) domain may be used. For example, the present invention is applicable to SMS (Short Message Service) communication other than packet data communication.

It is a block block diagram of the communication apparatus 1 of this embodiment. It is a sequence diagram which shows operation | movement of the communication apparatus 1 when the interruption request | requirement is made after receiving SECURITY MODE COMMAND. It is a sequence diagram which shows operation | movement of the communication apparatus 1 when the interruption request | requirement is made before receiving SECURITY MODE COMMAND.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Communication apparatus, 10 ... Operation part, 20 ... Display part, 100 ... TAF, 101 ... Packet transmission request part, 102 ... Packet transmission interruption request part, 103 ... Release notification receiving unit, 200 ... MTF, 201 ... packet transmission request detection unit, 202 ... packet transmission request processing unit, 203 ... packet transmission interruption request detection unit, 204 ... connection state detection unit 205 ... Packet transmission interruption request processing unit, 206 ... Release notification transmission unit, 210 ... Network establishment unit, 211 ... RRC connection establishment unit, 212 ... Packet connection establishment unit, 300 ... ·network.

Claims (4)

A connection means for starting a connection procedure with a network based on a call request from a user, and a connection establishment means for starting a connection establishment procedure predetermined with the network in the connection procedure by the connection means; before the connection establishment unit receives a predetermined instruction signal from the network to the notification indicating the start of the connection establishment procedure, when detecting a call interrupt request, interrupt the connection procedure by the connection means, said connection A connection interruption means for interrupting the connection procedure by the connection means after the connection establishment procedure is completed when the establishment means detects a call interruption request after receiving the predetermined instruction signal ;
A communication device comprising:   The communication apparatus according to claim 1, wherein the predetermined instruction signal is a signal for starting a connection establishment procedure of a data communication connection for concealment. A connection step for starting a connection procedure with a network based on a call origination request from a user; a connection establishment step for starting a connection establishment procedure predetermined with a network in the connection procedure by the connection step; If a call interruption request is detected before receiving a predetermined instruction signal from the network for a notification indicating that the connection establishment step starts the connection establishment procedure, the connection procedure in the connection step is interrupted and the connection establishment is performed. A connection interruption step of interrupting the connection procedure according to the connection step after the connection establishment procedure is completed when a call interruption request is detected after the step receives the predetermined instruction signal ;
A communication method comprising:   4. The communication method according to claim 3, wherein the predetermined instruction signal is a signal for starting a connection establishment procedure of a data communication connection for concealment.

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