JP2008098950A - Communication start method, radio line control station, exchange, and mobile station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a non-priority terminal to answer an origination request from a priority terminal even if the origination and termination of the non-priority terminal are restricted in an area where a disaster occurs. <P>SOLUTION: A communication start method has a stage in which a network MSC/RNC transmits paging to a destination terminal UE#2 at an origination request transmitted from a transmission source terminal UE#1, a stage wherein the destination terminal UE#2 answers the received paging, and a stage wherein communication between the transmission source terminal UE#1 and destination terminal UE#2 is started by answering the paging. In the stage wherein the paging is transmitted, the network MSC/RN transmits paging corresponding to an origination request transmitted from the priority terminal to the destination terminal UE#2 preferentially to paging corresponding to an origination request transmitted from the non-priority terminal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication start method for starting communication between a transmission source terminal and the destination terminal via a network based on a transmission request to the destination terminal transmitted from the transmission source terminal, a radio network controller, an exchange And mobile stations.

  In a conventional mobile communication system, in a disaster occurrence area, in order to give priority to communication addressed to a priority terminal, outgoing / incoming calls are restricted for non-priority terminals.

  With reference to FIG. 7 to FIG. 9, the operation of the conventional mobile communication system when such outgoing / incoming calls are restricted will be described. It is assumed that the location registration area 2 of the mobile station UE # 2 is a disaster occurrence area. That is, in the location registration area 2, it is assumed that outgoing / incoming calls are restricted for non-priority terminals.

  First, with reference to FIG. 7 and FIG. 8, an operation in a mobile communication system to which “Pre-Paging” is applied will be described.

  As shown in FIG. 7 and FIG. 8, in step S3001, the mobile station UE # 1 that is the transmission source terminal, with respect to the circuit switch MSC (Mobile Switching Center) # 1 in which the mobile station UE # 1 is located, A call origination request for mobile station UE # 2 (non-priority terminal) that is the destination terminal is transmitted.

  In step S3002, the circuit switch MSC # 1 analyzes subscriber information (contract status, etc.) about the mobile station UE # 1 in cooperation with a VLR (Visitor Location Register) # 1.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 1, in step S3003, the circuit switch MSC # 1 determines that the mobile station UE # 2 has received the mobile station UE # 2 from the mobile location register (HLR). A routing acquisition request (SRI) requesting routing information addressed to UE # 2 is transmitted.

  In step S3004, the HLR analyzes the subscriber information (contract status etc.) for the mobile station UE # 2.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 2, in step S3005, the HLR sends the mobile station UE # 2 to the circuit switch MSC # 2 in which the mobile station UE # 2 is located. A routing number issue request (PRN) for inquiring about a routing number temporarily assigned to 2 is transmitted.

  In step S3006, the circuit switch MSC # 2 transmits paging for the mobile station UE # 2 to the location registration area where the mobile station UE # 2 is located via the radio network controller RNC # 2. To make a general call.

  Here, in the location registration area of the mobile station UE # 2, since the incoming / outgoing restriction is performed for the non-priority terminal, the mobile station UE # 2 which is the non-priority terminal performs such paging (mobile station UE # 1). Cannot respond to the call request).

  As a result, it is possible to avoid an unprocessable state of the circuit switch MSC due to congestion in the location registration area 2 which is a disaster occurrence area, and communication to the priority terminal can be made possible.

  Secondly, with reference to FIG. 9, an operation in a mobile communication system to which “Pre-Paging” is not applied will be described.

  As shown in FIG. 9, in step S4001, the mobile station UE # 1 that is the transmission source terminal sends the mobile station UE # 1 that is the destination terminal to the circuit switch MSC # 1 in which the mobile station UE # 1 is located. A call origination request for 2 (non-priority terminal) is transmitted.

  In step S4002, the circuit switch MSC # 1 analyzes subscriber information (contract status, etc.) for the mobile station UE # 1 in cooperation with the VLR # 1.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 1, in step S4003, the circuit switch MSC # 1 addresses the mobile station UE # 2 to the HLR of the mobile station UE # 2. A routing acquisition request (SRI) requesting routing information is transmitted.

  In step S4004, the HLR analyzes the subscriber information (contract status etc.) for the mobile station UE # 2.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 2, in step S4005, the HLR sends the mobile station UE # 2 to the circuit switch MSC # 2 in which the mobile station UE # 2 is located. A routing number issue request (PRN) for inquiring about a routing number temporarily assigned to 2 is transmitted.

  In step S4006, the circuit switch MSC # 2 performs routing for notifying the HLR of the routing number temporarily assigned to the mobile station UE # 2 in response to the received routing number issue request (PRN). A number issue response (PRN.ack) is transmitted.

  In step S4007, the HLR transmits a routing information acquisition response (SRI.ack) corresponding to the above-described routing information acquisition request to the circuit switch MSC # 1.

  In step S4008, the circuit switch MSC # 1 transmits a circuit setting request for requesting the circuit switch MSC # 2 to set a circuit between the circuit switch MSC # 1 and the circuit switch MSC # 2.

  In step S4009, the circuit switch MSC # 2 transmits paging for the mobile station UE # 2 to the location registration area where the mobile station UE # 2 is located via the radio network controller RNC # 2. Make a general call.

Also in the case of FIG. 9, in the location registration area of the mobile station UE # 2, since the incoming / outgoing restriction is performed for the non-priority terminal, the mobile station UE # 2 which is the non-priority terminal has the paging (mobile station It is not possible to respond to a transmission request from UE # 1.
3GPP TS 22.011, “Service accessibility” 3GPP TS 23.067, “Enhanced Multi-Level Precedence and Pre-employment Service (eMLPP); Stage 2” 3GPP TS 24.067, “Enhanced Multi-Level Precedence and Pre-employment Service (eMLPP); Stage 3” ITU-T Recommendation Q.85, “Stage 2 description for community of interest supplementary services (clause 3: Multi-Level Precedence and Pre-empty MLPP)” ITU-T Recommendation Q.735, “Stage 3 description for community of interest supplementary services using SS No. 7 (class 3—Multi-Level Precedence PP)”

  However, in the conventional mobile communication system, as described above, in the location registration area 2 that is the disaster occurrence area, when the outgoing / incoming call restriction is performed for the non-priority terminal, the non-priority terminal is In addition to being unable to respond to a call request from a priority terminal, there is a problem that it is not possible to respond to a call request from a priority terminal.

  That is, in the above-described conventional mobile communication system, even when the mobile station UE # 1 is a priority terminal, it cannot communicate with the mobile station UE # 2 that is a non-priority terminal. There was a problem.

  Further, in the conventional mobile communication system, even in the location registration area 2 which is a disaster occurrence area, even when there is no outgoing / incoming restriction on non-priority terminals, the processing of the exchange MSC and the radio network controller RNC When traffic exceeding the capacity is generated, the exchange MSC and the radio network controller RNC not only process the call request from the non-priority terminal but also process the call request from the priority terminal (for example, Also, there is a problem that the paging transmission process is not performed.

  In such a case, only the outgoing call restriction is performed in the location registration area 2 that is a disaster occurrence area, and the mobile station UE # 1 is in contact with the mobile station UE # 2 even if incoming calls are permitted. However, there was a problem that communication could not be performed.

  Therefore, the present invention has been made in view of the above-described problems, and even in a disaster occurrence area, even when outgoing / incoming calls are regulated for non-priority terminals, It is an object of the present invention to provide a communication start method, a radio network controller, an exchange, and a mobile station that can respond to a call request.

  A first feature of the present invention is a communication start method for starting communication between a transmission source terminal and the destination terminal via a network based on a transmission request to the destination terminal transmitted from the transmission source terminal. The network transmits paging to the destination terminal in response to the call request transmitted from the source terminal, and the destination terminal responds to the received paging. , Starting communication between the transmission source terminal and the destination terminal in response to the paging, and in the step of transmitting the paging, the network responds to the call request transmitted from the priority terminal. The corresponding paging is transmitted to the destination terminal in preference to the paging corresponding to the call request transmitted from the non-priority terminal. To.

  In the first aspect of the present invention, in the step of transmitting the paging, the radio network controller in the network transmits the paging corresponding to the call request transmitted from the priority terminal from the non-priority terminal. It may be transmitted to the destination terminal with priority over paging corresponding to the transmission request.

  In the first aspect of the present invention, in the step of transmitting the paging, the exchange in the network prioritizes processing for a transmission request transmitted from a priority terminal over processing for a transmission request transmitted from a non-priority terminal. You may do it.

  In the first aspect of the present invention, in the step of transmitting the paging, the radio network controller in the network assigns a priority identifier to the paging corresponding to the call request transmitted from the priority terminal and transmits the paging In the step of responding to the paging, when the mobile station receives the paging including the priority identifier, the mobile station may respond to the paging by giving priority to processing for the paging over other processing. Good.

  In the first aspect of the present invention, in the step of transmitting the paging, the exchange in the network assigns a priority identifier to a paging transmission instruction corresponding to a call request transmitted from the priority terminal, and When transmitting to a line control station and receiving a paging transmission instruction including the priority identifier, the radio network control station may determine that it has received a call request transmitted from the priority terminal.

  The second feature of the present invention is used in a network configured to start communication between the transmission source terminal and the destination terminal based on a transmission request to the destination terminal transmitted from the transmission source terminal. A paging transmission unit configured to transmit paging to the destination terminal in response to the call request transmitted from the transmission source terminal. The section is configured to transmit the paging corresponding to the transmission request transmitted from the priority terminal to the destination terminal in preference to the paging corresponding to the transmission request transmitted from the non-priority terminal. And

  In the second aspect of the present invention, the apparatus includes a priority processing unit that determines that a transmission request transmitted from a priority terminal is received when a priority identifier is included in a paging transmission instruction corresponding to the received transmission request. May be.

  The third feature of the present invention is used in a network configured to start communication between the transmission source terminal and the destination terminal based on a transmission request to the destination terminal transmitted from the transmission source terminal. A paging transmission instruction transmission unit configured to transmit a paging transmission instruction to instruct to transmit paging to the radio network controller in response to the call request received from the transmission source terminal. The paging transmission instruction transmission unit prioritizes the paging transmission instruction corresponding to the transmission request transmitted from the priority terminal over the paging transmission instruction corresponding to the transmission request transmitted from the non-priority terminal. The gist is that it is configured to transmit to the radio network controller.

  A fourth feature of the present invention is used in a network configured to start communication between a transmission source terminal and the destination terminal based on a call origination request transmitted to the destination terminal from the transmission source terminal. A paging response unit configured to respond to paging received from the network, and when the paging response unit receives paging including a priority identifier, the paging response unit The gist is that it is configured to give priority to other processing.

  As described above, according to the present invention, even in a disaster occurrence area, even when the outgoing / incoming call restriction for the non-priority terminal is performed, the non-priority terminal responds to the call request from the priority terminal. It is possible to provide a communication start method, a radio network controller, an exchange, and a mobile station that can be performed.

(Configuration of mobile communication system according to the first embodiment of the present invention)
With reference to FIG. 1 thru | or FIG. 3, FIG. 5, the structure of the mobile communication system which concerns on the 1st Embodiment of this invention is demonstrated.

  As shown in FIG. 5, the mobile communication system according to the present embodiment is based on the transmission request for the destination terminal (mobile station UE # 2) transmitted from the transmission source terminal (mobile station UE # 1). Communication between the terminal and the destination terminal is started.

  Note that “Pre-Paging” is applied in the mobile communication system according to the present embodiment.

  As shown in FIG. 1, the circuit switch MSC includes a transmission request receiving unit 11, a transmission analyzing unit 12, a priority processing unit 13, a routing information acquisition request transmitting unit 14, a routing information acquisition response receiving unit 15, and a line. A setting unit 16, a routing number payout request receiving unit 17, a paging transmission instruction transmitting unit 18, a paging response receiving unit 19, and a routing number payout response transmitting unit 20 are provided.

  The transmission request receiving unit 11 is configured to receive a transmission request addressed to a destination terminal transmitted by a transmission source terminal located in the circuit exchange MSC.

  The transmission analysis unit 12 is configured to analyze subscriber information (contract status, etc.) regarding the transmission source terminal.

  The priority processing unit 13 is configured to determine whether or not the transmission request addressed to the destination terminal received by the transmission request reception unit 11 is a transmission request to be processed with priority.

  Specifically, the priority processing unit 13 preferentially determines whether or not the transmission request addressed to the destination terminal received by the transmission request reception unit 11 is a transmission request transmitted from the priority terminal. It is configured to determine whether it is an outgoing request to be processed.

  In addition, the priority processing unit 13 or the routing setting acquisition request transmitting unit 14 or the line setting is configured so that the processing for the transmission request transmitted from the priority terminal is prioritized over the processing for the transmission request transmitted from the non-priority terminal. It is configured to instruct the unit 16, the paging transmission instruction transmission unit 18, the routing number payout response transmission unit 20, and the like.

  The routing information acquisition request transmission unit 14 transmits a routing acquisition request (SRI) for requesting the routing information addressed to the destination terminal to the HLR of the destination terminal when there is no particular problem in the analysis result by the transmission analysis unit 12. It is configured.

  The routing information acquisition request transmission unit 14 responds to the transmission request transmitted from the non-priority terminal by responding to the instruction from the priority processing unit 13 with the routing information acquisition request corresponding to the transmission request transmitted from the priority terminal. It may be configured to transmit to the HLR of the destination terminal with priority over the routing information acquisition request to be made.

  Specifically, the routing information acquisition request transmission unit 14 is configured to give a priority identifier to a routing information acquisition request corresponding to a transmission request transmitted from the priority terminal and transmit the routing information acquisition request.

  The routing information acquisition response receiving unit 15 is configured to receive the routing information acquisition response (SRI.ack) corresponding to the above-described routing information acquisition request from the HLR of the destination terminal and acquire the routing information addressed to the destination terminal. Has been.

  The line setting unit 16 is configured to set a line with the circuit switch in which the destination terminal is located, using the routing information addressed to the destination terminal acquired by the routing information acquisition response receiving unit 15.

  The line setting unit 16 gives priority to the line corresponding to the call request transmitted from the priority terminal over the line corresponding to the call request transmitted from the non-priority terminal according to the instruction from the priority processing unit 13. It may be configured to set.

  The routing number payout request receiving unit 17 is configured to receive a routing number payout request (PRN) for inquiring about a routing number temporarily assigned to the destination terminal from the HLR.

  The paging transmission instruction transmission unit 18 sends a destination terminal to the radio network controller RNC in response to the routing number issue request received by the routing number issue request reception unit 17 (that is, the transmission request received from the transmission source terminal). A paging transmission instruction for instructing transmission of the addressed paging is transmitted.

  In response to an instruction from the priority processing unit 13, the paging transmission instruction transmission unit 18 sends a paging transmission instruction corresponding to the transmission request transmitted from the priority terminal to the paging corresponding to the transmission request transmitted from the non-priority terminal. It may be configured to transmit to the radio network controller RNC in preference to the transmission instruction.

  Specifically, the paging transmission instruction transmission unit 18 is configured to give a priority identifier to a paging transmission instruction corresponding to a call request transmitted from the priority terminal and transmit the paging transmission instruction.

  The paging response receiver 19 is configured to receive a paging response transmitted from the destination terminal via the radio network controller RNC. The paging response notifies that the destination terminal can respond to the paging transmitted from the radio network controller RNC.

  The routing number payout response transmission unit 20 notifies the HLR of the routing number temporarily assigned to the destination terminal in response to the paging response received by the paging response reception unit 19. (PRN.ack) is transmitted.

  The paging transmission instruction transmission unit 18 responds to the transmission request transmitted from the non-priority terminal with a routing number payout response corresponding to the transmission request transmitted from the priority terminal in response to the instruction from the priority processing unit 13. It may be configured to transmit to the HLR with priority over the routing number payout response.

  As shown in FIG. 2, the radio network controller RNC includes a paging transmission instruction receiving unit 21, a priority processing unit 22, a paging transmitting unit 23, a paging response receiving unit 24, and a paging response transmitting unit 25. ing.

  The paging transmission instruction receiving unit 21 is configured to receive a paging transmission instruction transmitted from the circuit switch MSC in which the destination terminal is located.

  In response to the paging transmission instruction received by the paging transmission instruction receiving unit 21, the priority processing unit 22 performs processing corresponding to the transmission request transmitted from the priority terminal than corresponding to the transmission request transmitted from the non-priority terminal. Is also configured to instruct the paging notification unit 23, the paging response transmission unit 25, and the like.

  Specifically, when the priority identifier is included in the paging transmission instruction received by the paging transmission instruction receiving unit 21, the priority processing unit 22 responds to the transmission request transmitted from the priority terminal. It is determined that this is a paging transmission instruction to be performed.

  The paging notification unit 23 is configured to transmit paging to the destination terminal in response to a paging transmission instruction corresponding to the transmission request transmitted from the transmission source terminal.

  Specifically, in response to an instruction from the priority processing unit 22, the paging notification unit 23 performs paging corresponding to the transmission request transmitted from the priority terminal from paging corresponding to the transmission request transmitted from the non-priority terminal. May be preferentially transmitted to the destination terminal.

  Note that the paging notification unit 23 is configured to give a priority identifier to paging corresponding to the call request transmitted from the priority terminal and transmit the paging.

  The paging response reception unit 24 is configured to receive a paging response transmitted from the destination terminal. The paging response notifies that the destination terminal can respond to the paging transmitted by the paging notification unit 23.

  The paging response transmission unit 25 is configured to transmit the paging response transmitted from the destination terminal to the radio network controller RNC.

  In response to an instruction from the priority processing unit 22, the paging response transmission unit 25 sends a paging response corresponding to the call request transmitted from the priority terminal to a paging response corresponding to the call request transmitted from the non-priority terminal. May be preferentially transmitted to the radio network controller RNC.

  As shown in FIG. 3, the mobile station UE includes a paging reception unit 31, a restriction information management unit 32, a priority processing unit 33, a paging response unit 34, and a communication processing unit 35. In the present embodiment, the mobile station UE is assumed to be a non-priority terminal.

  The paging reception unit 31 is configured to receive a paging addressed to a destination terminal transmitted from the network (the circuit switch MSC or the radio network controller RNC).

  The restriction information management unit 32 is configured to manage restriction information for the mobile station UE. For example, the restriction information management unit 32 manages restriction information for restricting outgoing / incoming calls processing and location registration processing in the circuit exchange MSC.

  The priority processing unit 33 instructs the paging response unit 34 and the communication processing unit 35 to perform processing for the paging with priority over other processing when paging including the priority identifier is received by the paging reception unit 31. It is configured as follows.

  The paging response unit 34 is configured to respond to the paging received by the paging reception unit 31.

  Specifically, the paging response unit 34 is configured to give a response to paging including a priority identifier with priority over other processing in response to an instruction from the priority processing unit 33.

  For example, in response to an instruction from the priority processing unit 33, the paging response unit 34 prioritizes a response to paging corresponding to a call request from a priority terminal over a response to paging corresponding to a call request from a non-priority terminal. Is configured to do.

  The communication processing unit 35 is configured to perform a communication process (for example, an incoming call process or a communication end process) with the transmission source terminal.

  Note that the communication processing unit 35 is configured to give a response to paging including a priority identifier with priority over other processing in response to an instruction from the priority processing unit 33.

  For example, even when the communication processing unit 35 is communicating with a non-priority terminal, if the priority processing unit 33 instructs to respond to paging including the priority identifier, the non-priority It may be configured to perform a response to paging including the priority identifier after terminating communication with the terminal.

  Note that the communication processing unit 35 is configured not to perform processing regulated by the regulation information managed by the regulation information management unit 32 (for example, outgoing / incoming call processing or location registration processing).

(Operation of the mobile communication system according to the first embodiment of the present invention)
With reference to FIG.4 and FIG.5, operation | movement of the mobile communication system which concerns on the 1st Embodiment of this invention is demonstrated.

  In the mobile communication system according to the present embodiment, it is assumed that the location registration area 2 of the mobile station UE # 2 is a disaster occurrence area, and in this location registration area 2, outgoing / incoming calls are restricted for non-priority terminals. It is assumed that

  In step S1001, the mobile station UE # 1 that is the transmission source terminal is connected to the mobile station UE # 2 that is the destination terminal (non-priority terminal) with respect to the circuit switch MSC # 1 in which the mobile station UE # 1 is located. Send a call request.

  In step S1002, the circuit switch MSC # 1 analyzes the subscriber information (contract status etc.) for the mobile station UE # 1 in cooperation with the VLR # 1.

  If there is no particular problem as a result of analyzing the subscriber information on the mobile station UE # 1, in step S1003, the circuit switch MSC # 1 addresses the mobile station UE # 2 to the HLR of the mobile station UE # 2. A routing acquisition request (SRI) requesting routing information is transmitted.

  If the call request to the mobile station UE # 2 (non-priority terminal) is from the non-priority terminal, the circuit switch MSC # 1 sends a routing acquisition request (SRI) corresponding to the call request to the mobile station. There is no need to transmit to the HLR of UE # 2.

  In step S1004, the HLR analyzes subscriber information (contract status etc.) for the mobile station UE # 2.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 2, in step S1005, the HLR sends the mobile station UE # 2 to the circuit switch MSC # 2 in which the mobile station UE # 2 is located. A routing number issue request (PRN) for inquiring about a routing number temporarily assigned to 2 is transmitted.

  In addition, when the transmission request to the mobile station UE # 2 (non-priority terminal) is from the non-priority terminal, the HLR sends a routing number issue request (PRN) corresponding to the transmission request to the radio network controller RNC. It is not necessary to transmit to # 2.

  In step S1006, the circuit switch MSC # 2 transmits paging for the mobile station UE # 2 to the location registration area where the mobile station UE # 2 is located via the radio network controller RNC # 2. Make a general call.

  In addition, when the transmission request to the mobile station UE # 2 (non-priority terminal) is from the non-priority terminal, the radio network controller RNC # 2 performs paging corresponding to the transmission request to the mobile station UE # 2. May not be sent to

  Here, in the location registration area of the mobile station UE # 2, the outgoing / incoming call restriction is performed for the non-priority terminal, but the mobile station UE # 2 which is the non-priority terminal responds to the transmission request from the priority terminal. Since the paging to be performed can be received, it responds to the paging corresponding to the transmission request from the mobile station UE # 1.

  In step S1007, the circuit switch MSC # 2 sends a routing number issue response (PRN.ack) for notifying the HLR of the routing number temporarily assigned to the destination terminal according to the received paging response. Send.

  In step S1008, the HLR transmits a routing information acquisition response (SRI.ack) corresponding to the above-described routing information acquisition request to the circuit switch MSC # 1.

  In step S1009, the circuit switch MSC # 1 sets a line with the circuit switch MSC # 2 using the routing information addressed to the destination terminal acquired by the routing information acquisition response receiver 15.

  In step S1010, communication is started between the mobile station UE # 1 and the mobile station UE # 2 using the line set in step S1009.

(Operations and effects of the mobile communication system according to the first embodiment of the present invention)
According to the mobile communication system according to the first embodiment of the present invention, even if the outgoing / incoming call restriction for the non-priority terminal (destination terminal UE # 2) is performed in the disaster occurrence area, the destination terminal UE The radio network controller RNC # 2 under the network switch MSC # 2 in which # 2 is located is configured to transmit only the paging corresponding to the call request from the priority terminal to the destination terminal UE # 2. Therefore, the destination terminal UE # 2 that is a non-priority terminal can respond to a call origination request from the transmission source terminal UE # 1 that is a priority terminal.

(Mobile communication system according to the second embodiment of the present invention)
A mobile communication system according to a second embodiment of the present invention will be described with reference to FIG. Hereinafter, the mobile communication system according to the present embodiment will be described by focusing on differences from the mobile communication system according to the first embodiment described above.

  It is assumed that “Pre-Paging” is not applied in the mobile communication system according to the present embodiment.

  Here, with reference to FIG. 6, an operation for restricting outgoing / incoming calls to non-priority terminals in a disaster occurrence area in the mobile communication system according to the present embodiment to which “Pre-Paging” is not applied will be described. .

  In the present embodiment, as in the case of the first embodiment described above, the location registration area 2 of the mobile station UE # 2 is assumed to be a disaster occurrence area. That is, in the location registration area 2, it is assumed that outgoing / incoming calls are restricted for non-priority terminals.

  As shown in FIG. 6, in step S2001, the mobile station UE # 1 that is the transmission source terminal transmits the mobile station UE # that is the destination terminal to the circuit switch MSC # 1 in which the mobile station UE # 1 is located. A call origination request for 2 (non-priority terminal) is transmitted.

  In step S2002, the circuit switch MSC # 1 analyzes subscriber information (contract status, etc.) for the mobile station UE # 1 in cooperation with the VLR # 1.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 1, in step S2003, the circuit switch MSC # 1 addresses the mobile station UE # 2 to the HLR of the mobile station UE # 2. A routing acquisition request (SRI) requesting routing information is transmitted.

  In step S2004, the HLR analyzes the subscriber information (contract status etc.) for the mobile station UE # 2.

  If there is no particular problem as a result of analyzing the subscriber information about the mobile station UE # 2, in step S2005, the HLR sends the mobile station UE # 2 to the circuit switch MSC # 2 in which the mobile station UE # 2 is located. 2 sends a routing number payout request (PRN) for inquiring about the routing number temporarily assigned to 2.

  In step S2006, the circuit switch MSC # 2 performs routing for notifying the routing number temporarily assigned to the mobile station UE # 2 to the HLR in response to the received routing number issue request (PRN). A number issue response (PRN.ack) is transmitted.

  In step S2007, the HLR transmits a routing information acquisition response (SRI.ack) corresponding to the above-described routing information acquisition request to the circuit switch MSC # 1.

  In step S2008, the circuit switch MSC # 1 transmits a circuit setting request for requesting the circuit switch MSC # 2 to set a circuit between the circuit switch MSC # 1 and the circuit switch MSC # 2.

  In step S2009, the circuit switch MSC # 2 transmits paging for the mobile station UE # 2 to the location registration area where the mobile station UE # 2 is located via the radio network controller RNC # 2. Make a general call.

  Here, in the location registration area of the mobile station UE # 2, the outgoing / incoming call restriction is performed for the non-priority terminal, but the mobile station UE # 2 which is the non-priority terminal responds to the transmission request from the priority terminal. Since the paging to be performed can be received, it responds to the paging corresponding to the transmission request from the mobile station UE # 1.

  In step S2010, the circuit switch MSC # 1 sets a line with the circuit switch MSC # 2 by using the routing information addressed to the destination terminal acquired by the routing information acquisition response receiver 15.

  In step S2011, communication is started between the mobile station UE # 1 and the mobile station UE # 2 using the line set in step S2010.

1 is a functional block diagram of a circuit switch according to a first embodiment of the present invention. 2 is a functional block diagram of a radio network controller according to the first embodiment of the present invention. FIG. FIG. 3 is a functional block diagram of a mobile station according to the first embodiment of the present invention. FIG. 3 is a sequence diagram showing an operation of the mobile communication system according to the first embodiment of the present invention. It is a figure for demonstrating operation | movement of the mobile communication system which concerns on the 1st Embodiment of this invention. It is a sequence diagram which shows operation | movement of the mobile communication system which concerns on the 2nd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the conventional mobile communication system. It is a figure for demonstrating operation | movement of the conventional mobile communication system. It is a sequence diagram which shows operation | movement of the conventional mobile communication system.

Explanation of symbols

MSC: circuit switch 11: transmission request reception unit 12: transmission analysis unit 13, 22, 33 ... priority processing unit 14: routing information acquisition request transmission unit 15: routing information acquisition response reception unit 16: circuit setting unit 17: routing number issue Request receiving unit 18 ... paging transmission instruction transmitting unit 19, 24 ... paging response receiving unit 20 ... routing number issue response transmitting unit RNC ... radio network control station 21 ... paging transmission instruction receiving unit 23 ... paging transmission unit 25 ... paging response transmitting unit UE ... Mobile station 31 ... Paging reception unit 32 ... Restriction information management unit 34 ... Paging response unit 35 ... Communication processing unit

Claims (9)

A communication start method for starting communication between the transmission source terminal and the destination terminal via a network based on a transmission request to the destination terminal transmitted from the transmission source terminal,
The network sending paging to the destination terminal in response to the call request sent from the source terminal;
The destination terminal responding to the received paging;
Starting communication between the source terminal and the destination terminal in response to the paging,
In the step of transmitting the paging, the network prioritizes paging corresponding to the transmission request transmitted from the priority terminal to the destination terminal over paging corresponding to the transmission request transmitted from the non-priority terminal. A communication start method characterized by transmitting.   In the step of transmitting the paging, the radio network controller in the network prioritizes paging corresponding to the transmission request transmitted from the priority terminal over paging corresponding to the transmission request transmitted from the non-priority terminal. The communication start method according to claim 1, wherein the communication is transmitted to the destination terminal.   In the step of transmitting the paging, the exchange in the network performs processing for a transmission request transmitted from a priority terminal in preference to processing for a transmission request transmitted from a non-priority terminal. Item 3. A communication start method according to Item 1 or 2. In the step of transmitting the paging, the radio network controller in the network transmits a paging corresponding to the call request transmitted from the priority terminal, giving a priority identifier,
In the step of responding to the paging, when the mobile station receives the paging including the priority identifier, the mobile station responds to the paging in preference to other processing. The communication start method according to claim 2 or 3. In the step of transmitting the paging,
The exchange in the network gives a priority identifier to the paging transmission instruction corresponding to the call request transmitted from the priority terminal, and transmits it to the radio network controller.
The communication start method according to claim 4, wherein the radio network controller determines that it has received a call request transmitted from the priority terminal when receiving a paging transmission instruction including the priority identifier. A radio network controller used in a network configured to start communication between the source terminal and the destination terminal based on a call origination request transmitted from the source terminal to the destination terminal;
A paging transmission unit configured to transmit paging to the destination terminal in response to the call request transmitted from the source terminal;
The paging transmission unit is configured to transmit the paging corresponding to the call request transmitted from the priority terminal to the destination terminal in preference to the paging corresponding to the call request transmitted from the non-priority terminal. A radio network controller characterized by that.   A priority processing unit is provided for determining that a call request transmitted from a priority terminal is received when a priority identifier is included in a paging transmission instruction corresponding to the call request received from an exchange. Item 7. The radio network controller according to item 6. An exchange used in a network configured to start communication between the source terminal and the destination terminal based on a call origination request sent from the source terminal to the destination terminal,
A paging transmission instruction transmission unit configured to transmit a paging transmission instruction to instruct to transmit paging to the radio network controller in response to the call request received from the transmission source terminal;
The paging transmission instruction transmission unit gives the paging transmission instruction corresponding to the transmission request transmitted from the priority terminal to the radio network controller in preference to the paging transmission instruction corresponding to the transmission request transmitted from the non-priority terminal. An exchange that is configured to transmit. A mobile station used in a network configured to start communication between the source terminal and the destination terminal based on a call origination request transmitted from the source terminal to the destination terminal,
Comprising a paging response unit configured to respond to paging received from the network;
The paging response unit is configured to, when receiving a paging including a priority identifier, prioritize a response to the paging over other processing.

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