JP4127841B2 - Communication terminal and incoming call control device - Google Patents

Description

  The present invention relates to a communication terminal and an incoming call control device used in a communication system that performs communication by selectively using a plurality of bearers.

A communication system that performs communication by selectively using a plurality of bearers has been proposed (for example, see Patent Document 1 below). A bearer indicates a method for carrying information carried on a communication line.
JP 2002-198891 A

  The communication system described in Patent Document 1 described above is intended to set different bearers according to the upper and lower traffic characteristics, particularly during communication. However, in the first place, it is important to set an appropriate bearer at the start of communication. However, this point has not been studied in Patent Document 1.

  Accordingly, the present invention provides a communication terminal used in a communication system that performs communication by selectively using a plurality of bearers, and a communication terminal and an incoming call control device capable of setting an appropriate bearer at the start of communication The purpose is to do.

  A communication terminal according to the present invention is a communication terminal used in a communication system that performs communication by selectively using a plurality of bearers, and is transmitted using a first bearer included in the plurality of bearers prior to communication. Request receiving means for receiving incoming request information, priority information indicating the priority of each of a plurality of bearers included in the received incoming request information, and use indicating a bearer that can be used by this communication terminal among the plurality of bearers Bearer determining means for determining a bearer to be used for communication based on the possible information, and determination bearer transmitting means for transmitting determined bearer information for specifying the determined bearer to the communication system.

  According to the present invention, since the incoming request information is transmitted using the predetermined first bearer, the incoming request information can be reliably received at the start of communication. In addition, since the received incoming request information includes priority information and usable information, it is possible to select an available bearer with priority.

  Further, in the communication terminal of the present invention, the available information can be used by the communication terminal based on the bearer that the communication terminal can use on a contract basis and the bearer that can be used according to the location state of the communication terminal. It is also preferable to indicate a simple bearer. According to this preferable aspect, the bearer can be determined according to the contract state and the in-zone state.

  In the communication terminal of the present invention, it is also preferable that the bearer determination unit determines whether or not the bearer indicated by the available information is available in descending order of priority indicated in the priority information. According to this preferable aspect, since the availability is sequentially determined from the bearers with high priority, a quick determination is possible.

  In the communication terminal of the present invention, the bearer determination unit determines whether or not the bearers indicated by the available information are listed in the order of priority shown in the priority information, and when all bearers are unavailable. It is also preferable to start monitoring the return of the communication terminal within the range. This preferred aspect focuses on the fact that the communication terminal is out of service when all bearers are unavailable, and starts the return monitoring within the service area. Is possible.

  In the communication terminal according to the present invention, it is also preferable that the bearer determination means monitors the communication terminal within a predetermined time and does not determine whether the bearer can be used after the predetermined time has elapsed. In this preferable aspect, since the availability of the bearer is not determined after a predetermined time has elapsed, it can be determined within an appropriate time whether or not the bearer can be used.

  An incoming call control device according to the present invention is an incoming call control device in a communication system that performs communication by selectively using a plurality of bearers for a communication terminal, and includes connection request information for requesting a communication connection with the communication terminal. Connection request receiving means for receiving, priority information indicating the priority of a plurality of bearers according to the data type included in the received connection request information, and use indicating a bearer that can be used by a communication terminal among the plurality of bearers Incoming request generation means for acquiring incoming information and generating incoming request information, request transmission means for transmitting the generated incoming request information to a communication terminal using first bearers included in a plurality of bearers, and transmission In response, decision bearer receiving means for receiving decision bearer information transmitted from the communication terminal, and incoming call control means for performing incoming call control on the communication terminal based on the received decision bearer information , Comprising a.

  According to the present invention, since the incoming request information is transmitted using the predetermined first bearer, the incoming request information can be reliably transmitted at the start of communication. In addition, since the received incoming request information includes priority information and usable information, the available bearers can be selected with priority.

  According to the present invention, an appropriate bearer can be set at the start of communication.

  The knowledge of the present invention can be easily understood by considering the following detailed description with reference to the accompanying drawings shown for illustration only. Subsequently, embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  A communication system including a communication terminal and an incoming call control apparatus according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration of the communication system 1. The communication system 1 includes an incoming call control device 10, a service control device 20, a mobile communication network NW1, and a wireless local area communication network (WLAN) NW2. Although not explicitly shown in FIG. 1, a signal conversion device is arranged between the incoming call control device 10 and the wireless local area network NW2. The mobile communication network NW1 is a communication network that can use both W-CDMA (Wideband Code Division Multiple Access) and HSDPA (High Speed Downlink Packet Access).

  The mobile phone 30 (communication terminal) is a terminal capable of communication connection with both the mobile communication network NW1 and the wireless local area communication network NW2. Further, the caller side communication terminal 40 may be a fixed telephone or a mobile phone, may be an information processing device such as a server, and may make / receive calls via another communication system outside the communication system 1. Note that the mobile phone 30 and the transmission side communication terminal 40 are examples of terminals that can use the communication system 1, and a large number of terminals actually use the communication system 1.

  The service control device 20 is a device that stores contract information and location information of the mobile phone 30, and is configured to be able to communicate with the incoming call control device 10, the mobile communication network NW1, and the wireless local area communication network NW2. ing. The service control apparatus 20 appropriately requests the mobile communication network NW1 and the wireless local area communication network NW2 to transmit the location information of the mobile phone 30, and stores the location information transmitted in response to the request.

  The service control device 20 is a part that stores status information of each user. More specifically, an example of information stored in the service control apparatus 20 is shown in FIG. The example shown in FIG. 2 exemplifies one of status information of each user stored in the service control device 20. According to the example shown in FIG. 2, the service control apparatus 20 stores contract information, user setting information, and location information in association with each user.

  The contract information is information indicating what type of contract each user of the mobile phone has. The user in the example shown in FIG. 2 has a contract that allows all services (bearers) of W-CDMA, HSDPA, and WLAN.

  The user setting information is information indicating settings such as which service (bearer) the user uses preferentially. The user in the example shown in FIG. 2 performs setting to use the WLAN preferentially.

  The location information is information indicating in which service area each mobile phone is located. The user in the example shown in FIG. 2 is in a service area state for all services (bearers) of W-CDMA, HSDPA, and WLAN.

  Subsequently, the incoming call control device 10 will be described. A hardware configuration diagram of the incoming call control device 10 is shown in FIG. As shown in FIG. 6, the incoming call control device 10 includes a CPU (Central Processing Unit) 10a, a RAM (Random Access Memory) 10b and a ROM (Read Only Memory) 10c, an auxiliary storage device 10e such as a hard disk, In addition, it is configured as a computer including hardware such as a communication module 10d which is a data transmission / reception device such as a network card. By operating these components, the later-described function of the incoming call control device 10 is exhibited.

  With reference to FIG. 1 again, functional components of the incoming call control device 10 will be described. The incoming call control device 10 determines, as functional components, a connection request reception unit 101 (connection request reception unit), an incoming request generation unit 102 (incoming request generation unit), and a request transmission unit 103 (request transmission unit). A bearer receiving unit 104 (decision bearer receiving unit) and an incoming call control unit 105 (incoming call control unit) are provided. Subsequently, each component will be described.

  The connection request receiving unit 101 is a part that receives connection request information for requesting communication connection with the mobile phone 30. More specifically, it is connection request information transmitted from the originating communication terminal 40, and a telephone number as terminal specifying information for identifying the mobile phone 30 and the originating communication terminal 40 trying to transmit to the mobile phone 30. Connection request information including information for identifying the data type being received. The connection request receiving unit 101 outputs the received connection request information to the incoming request generation unit 102.

  The incoming request generation unit 102 includes priority information indicating the priority of a plurality of services (bearers) and a plurality of services (bearers) according to the data type included in the connection request information received by the connection request receiving unit 101. Available information indicating a service (bearer) that can be used by the communication terminal is acquired to generate incoming request information. The incoming request generation unit 102 outputs the generated incoming request information to the request transmission unit 103.

  The usable information is information illustrated in FIG. 3, and is information that the incoming request generation unit 102 acquires from the service control device 20. The priority information represents the priority for each data type of each service (bearer), and an example is shown in FIG. In the example shown in FIG. 4, when the data type is large-capacity content, the first priority bearer (service) is WLAN, and the second priority bearer (service) is HSDPA. For high-capacity content, W-CDMA is not particularly prioritized. When the data type is mail, the first priority bearer (service) is WLAN, the second priority bearer (service) is HSDPA, and the third priority bearer (service) is W-CDMA. This priority information may be stored in the incoming call control device 10, or may be stored in the service control device 20.

  The request transmission unit 103 is a part that transmits the incoming request information generated by the incoming request generation unit 102 to the mobile phone 30. More specifically, the request transmission unit 103 transmits incoming call request information to the mobile phone 30 using SMS (Short Message Service) in W-CDMA (first bearer) of the mobile communication network NW1. It is also preferable that the incoming call request information includes in-zone return monitoring timer information. The in-area return monitoring timer information is information that designates a predetermined time for monitoring whether or not the mobile phone 30 has returned to the area when the mobile phone 30 is out of the area.

  The decision bearer receiving unit 104 is a part that receives an incoming call response as decision bearer information transmitted from the mobile phone 30 in response to the transmission of the incoming request information from the request transmission unit 103. The decision bearer information includes information on which bearer (service) performs communication. The decision bearer receiving unit 104 outputs an incoming call response as the received decision bearer information to the incoming call control unit 105.

  The incoming call control unit 105 is a part that performs incoming call control on the mobile phone 30 based on an incoming call response as decision bearer information received by the decision bearer reception unit 104. The incoming call control unit 105 performs incoming call control on the mobile communication network NW1 if the determined bearer information indicates W-CDMA or HSDPA, and performs wireless local area communication if the determined bearer information indicates WLAN. Incoming call control is performed for the network NW2.

  Subsequently, the mobile phone 30 will be described. The mobile phone 30 has a hardware configuration capable of communicating with both the mobile communication network NW1 and the wireless local area communication network NW2. Functional components of the mobile phone 30 are shown in FIG. As shown in FIG. 2, the mobile phone 30 includes, as functional components, a request reception unit 301 (request reception unit), a bearer determination unit 302 (bearer determination unit), and a determination bearer transmission unit 303 (determination bearer transmission unit). ) And. Subsequently, each component will be described.

  The request receiving unit 301 receives incoming request information transmitted using W-CDMA SMS, which is a first bearer included in a plurality of bearers (services) that can be handled by the communication system 1 prior to communication. It is. The request reception unit 301 outputs the received incoming call request information to the bearer determination unit 302.

  The bearer determination unit 302 can use the priority information indicating the priority of each of a plurality of bearers (services) included in the incoming request information received by the request reception unit 301 and the mobile phone 30 among the plurality of bearers (services). This is a part for determining a bearer (service) to be used for communication based on the available information indicating a valid bearer (service). The bearer determination unit 302 outputs determined bearer information that identifies the determined bearer to the determined bearer transmission unit 303.

  It is also preferable that the bearer determination unit 302 determines whether or not the bearer (service) indicated by the available information can be used in descending order of priority indicated in the priority information. In addition, when determining whether or not bearers (services) can be used in the descending order of priority indicated in the priority information, the bearer determination unit 302 determines that the mobile phone 30 is not available when all bearers (services) are unavailable. Enter the mode to monitor the return of the area. This is because the mobile phone 30 is likely to be out of service.

  The area return monitoring of the mobile phone 30 by the bearer determination unit 302 is performed within a predetermined time specified by the area return monitoring timer information described above. When the mobile phone 30 returns within the predetermined time, the bearer determination unit 302 determines an available bearer (service). On the other hand, when the mobile phone 30 does not return within the predetermined time, the bearer determination unit 302 ends the bearer availability determination.

  The determination bearer transmission unit 303 is a part that transmits the determination bearer information determined by the bearer determination unit 302 to the communication system 1.

  Subsequently, operations of the incoming call control device 10 and the mobile phone 30 will be described with reference to FIG. FIG. 5 is a sequence diagram showing operations of the incoming call control device 10 and the mobile phone 30.

  When a data transmission operation or the like is performed from the calling communication terminal 40 to the mobile phone 30, connection request information is transmitted to the incoming call control device 10 (or an incoming call control system corresponding to the incoming call control device 10) via the incoming call request system. (S01). This connection request information is received by the connection request receiving unit 101. The request reception unit 101 outputs the received connection request information to the incoming request generation unit 102. Further, the request receiving unit 101 transmits a connection request response indicating that the connection request information has been received to the incoming call request system side (S03).

  The incoming request generation unit 102 inquires of the service control device 20 about user information (available information) (S02). This user information inquiry is performed using the telephone number of the called party included in the connection request information as a key. In response to this inquiry, the service control device 20 selects user information (S04).

  The selected user information (usable information), for example, contract information as illustrated in FIG. 3, user setting information, location information, and the like are transmitted to the incoming call control device 10 (S05). The transmitted user information (usable information) is received by the incoming call request generation unit 102.

  The incoming request generation unit 102 includes priority information indicating the priority of a plurality of services (bearers) and a plurality of services (bearers) according to the data type included in the connection request information received by the connection request receiving unit 101. The available information indicating the service (bearer) that can be used by the communication terminal is acquired to generate incoming call request information (S06). The incoming request generation unit 102 outputs the generated incoming request information to the request transmission unit 103.

  The request transmission unit 103 transmits the incoming request information generated by the incoming request generation unit 102 to the mobile phone 30 (S07). More specifically, the request transmission unit 103 transmits incoming call request information to the mobile phone 30 using SMS (Short Message Service) in W-CDMA (first bearer) of the mobile communication network NW1.

  The received incoming request information is received by the request receiving unit 301 of the mobile phone 30. The request reception unit 301 outputs the received incoming call request information to the bearer determination unit 302. The bearer determination unit 302 can use the priority information indicating the priority of each of a plurality of bearers (services) included in the incoming request information received by the request reception unit 301 and the mobile phone 30 among the plurality of bearers (services). A bearer (service) to be used for communication is determined based on the available information indicating a valid bearer (service) (S08).

  The bearer determination unit 302 outputs determined bearer information that identifies the determined bearer to the determined bearer transmission unit 303. The determined bearer transmission unit 303 transmits the determined bearer information determined by the bearer determination unit 302 to the communication system 1 (S09). The transmitted determination bearer information is received by the determination bearer receiving unit 104 of the incoming call control device 10.

  The decision bearer receiving unit 104 outputs an incoming call response as the received decision bearer information to the incoming call control unit 105. The incoming call control unit 105 performs incoming call control on the mobile phone 30 based on the incoming call response as decision bearer information received by the decision bearer reception unit 104. The incoming call control unit 105 performs incoming call control on the mobile communication network NW1 if the determined bearer information indicates W-CDMA or HSDPA, and performs wireless local area communication if the determined bearer information indicates WLAN. Incoming call control is performed for the network NW2. As a result, kickback connection according to the instruction from the incoming call control device 10 and the terminal state of the mobile phone 30 is realized (S10).

  According to the present embodiment, since the incoming request information is transmitted using a predetermined W-CDMA (first bearer), the incoming request information can be reliably received at the start of communication. In addition, since the received incoming request information includes priority information and usable information, it is possible to select an available bearer with priority.

It is a figure for demonstrating the structure of the communication system containing the incoming call control apparatus which is embodiment of this invention. It is a figure for demonstrating the functional structure of the mobile telephone shown in FIG. It is a figure for demonstrating the usable information in this embodiment. It is a figure for demonstrating the priority information in this embodiment. It is a figure for demonstrating operation | movement of the incoming call control apparatus of FIG. 1, and a mobile telephone. It is a hardware block diagram of the incoming call control apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Communication system, 10 ... Incoming control apparatus, 20 ... Service control apparatus, 30 ... Mobile telephone, 40 ... Originating side communication terminal, NW1 ... Mobile communication network, NW2 ... Wireless local area communication network, 101 ... Connection request receiving part, DESCRIPTION OF SYMBOLS 102 ... Incoming request production | generation part, 103 ... Request transmission part, 104 ... Determination bearer transmission part, 105 ... Incoming control part, 301 ... Request reception part, 302 ... Bearer determination part, 303 ... Determination bearer transmission part.

Claims (6)

A communication terminal used in a communication system that performs communication by selectively using a plurality of bearers,
Request receiving means for receiving incoming request information transmitted using a first bearer included in the plurality of bearers prior to communication;
Used for communication based on priority information indicating the priority of each of the plurality of bearers included in the received incoming request information and availability information indicating a bearer that can be used by this communication terminal among the plurality of bearers A bearer determining means for determining a bearer to perform;
Decision bearer transmission means for transmitting decision bearer information for identifying the decided bearer to the communication system;
A communication terminal comprising: The availability information indicates a bearer that can be used by the communication terminal based on a bearer that the communication terminal can use on a contract basis and a bearer that can be used according to a location state of the communication terminal. The communication terminal according to 1. The communication terminal according to claim 1 or 2, wherein the bearer determination unit determines whether or not a bearer indicated by the availability information is available in descending order of priority indicated by the priority information. When the bearer determining means determines whether or not the bearers indicated by the available information are used in descending order of priority indicated in the priority information, when all bearers are unavailable, The communication terminal according to claim 3, wherein return monitoring is started. The communication terminal according to claim 4, wherein the bearer determination unit performs return monitoring of the communication terminal within a predetermined time, and does not determine whether the bearer can be used after the predetermined time has elapsed. An incoming call control device in a communication system that performs communication by selectively using a plurality of bearers to a communication terminal,
Connection request receiving means for receiving connection request information for requesting communication connection with the communication terminal;
According to a data type included in the received connection request information, priority information indicating priority of the plurality of bearers and availability information indicating a bearer usable by the communication terminal among the plurality of bearers are acquired. Incoming request generation means for generating incoming request information,
Request transmission means for transmitting the generated incoming request information to the communication terminal using a first bearer included in the plurality of bearers;
A decision bearer receiving means for receiving decision bearer information transmitted from the communication terminal in response to the transmission;
Incoming control means for performing incoming control for the communication terminal based on the received decision bearer information;
An incoming call control device comprising:

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