JP2013240032A - Radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To complement a linking function to an external device without modifying an existing device.SOLUTION: A radio communication device 3 includes: a short range radio communication unit 31 for first communication; a wired interface unit 32 for second communication; and a control unit 33 for establishing a first data communication link between with a smartphone 1 through the wired interface unit 32 and a first voice communication link between with the smartphone 1, by receiving a connection request from the smartphone 1 to a navigation system 2 by the short range radio communication unit 31, and for establishing a second data communication link and a second voice communication link, respectively corresponding to the first data communication link and the first voice data communication link, between with the navigation system 2, by receiving a connection request from the navigation system 2 to the smartphone 1 by the short range radio communication unit 31.

Description

  The present invention relates to a wireless communication apparatus for connecting a smartphone or the like with an external device, for example.

  A smartphone is a mobile information communication terminal that replaces a mobile phone terminal in a wide area network, and also has the function of a mobile phone terminal. However, mobile phones are based on voice communication, whereas smartphones are characterized by information operations based on data communication. In recent years, this smartphone has been rapidly and rapidly changing the market map due to the flexibility and convenience of applications and the operability of the terminal, as well as the innovativeness of the main unit design and music distribution. Demand is growing. In response to this new need, carriers are forced to expand the market by responding immediately to this need, with the goal of preventing the departure of customers and further acquiring smartphones as the top priority.

JP 2011-166695 A

  Under these circumstances, telecommunications carriers are responding to this rapid change by constructing various services that have been spread and steady on conventional mobile phones, reducing functions, and restricting response delays. . In this response, this tendency is particularly noticeable for external connection functions that provide open services through communication terminals, and market inquiries and declarations are rapidly increasing. This is because many end-users regard smartphones as an extension of mobile phones and naturally recognize that they are compatible with higher functions, and this trend is not anticipated as an exception. There is a need for proposals to complement conventional functions from users.

  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a wireless communication apparatus capable of complementing a connection function with an external device without modifying the existing device. It is in.

In order to achieve the above object, a first aspect of a wireless communication apparatus according to the present invention performs voice communication and data communication via a public network, and performs voice communication by first communication and data communication by second communication. 1 is a wireless communication device used in a wireless communication system comprising a first device that performs communication and a second device that performs the first communication with the first device, the first communication unit for the first communication A second communication interface unit for the second communication, a first control means for establishing a first data communication link with the first device by the second communication interface unit, and the first communication unit. Second control means for receiving a connection request from the first device to the second device and establishing a first voice communication link with the first device; and from the second device by the first communication unit. Receives a connection request to the first device. And a third control means for establishing a second data communication link and a second voice communication link corresponding to the first data communication link and the first voice communication link with the second device. is there.
According to the first aspect, when the first device and the second device are connected, the wireless communication device is relay-connected to enable voice communication and data communication using the first communication and the second communication. It is possible to complement the connection function with external devices without modifying the devices.

The second aspect of the wireless communication apparatus according to the present invention performs voice communication and data communication via a public line network, and uses voice communication and wired connection using short-range wireless communication using a frequency hopping method. A wireless communication device for use in a wireless communication system, comprising: a first device that performs data communication; and a second device that performs the short-range wireless communication with the first device, the short-range wireless communication A short-range wireless communication unit, a wired interface unit for wired connection, a first control means for establishing a first data communication link with the first device by the wired interface unit, and the short-range wireless communication A second control means for receiving a connection request from the first device to the second device by a unit and establishing a first voice communication link with the first device; and 2 A second data communication link and a second voice communication link corresponding to the first data communication link and the first voice communication link between the first device and the second device upon receiving a connection request from the device to the first device. And third control means to be established.
According to the second aspect, when connecting the first device and the second device, it is possible to relay-connect the wireless communication devices and aggregate the wired connection link and the wireless connection link. Without adding, it is possible to complement the connection function with external devices.

  According to a third aspect of the wireless communication apparatus of the present invention, voice communication and data communication are performed through a public network, and voice communication using a short-range wireless communication using a frequency hopping method and a wireless LAN connection are used. A wireless communication device for use in a wireless communication system, comprising: a first device that performs data communication, and a second device that performs short-range wireless communication with the first device, wherein the short-range wireless communication Short-range wireless communication unit for wireless LAN, wireless LAN interface unit for wireless LAN connection, first control means for establishing a first data communication link with the first device by the wireless LAN interface unit, A second control means for receiving a connection request from the first device to the second device by a short-range wireless communication unit and establishing a first voice communication link with the first device; A second data communication link corresponding to the first data communication link and the first voice communication link between the second device and a connection request received from the second device by the line communication unit And third control means for establishing a second voice communication link.

  According to the third aspect, by establishing a data communication link using the wireless LAN function of the first device, the wireless communication device is relayed without a cable when the first device and the second device are connected. It is possible to connect and provide a plurality of services such as a data communication function and a voice communication function without modifying existing equipment.

According to a fourth aspect of the wireless communication apparatus of the present invention, voice communication and data communication are performed via a public network, and voice communication using a short-range wireless communication using a frequency hopping method and a wireless LAN connection are used. A wireless communication device for use in a wireless communication system, comprising: a first device that performs data communication, and a second device that performs short-range wireless communication with the first device, wherein the short-range wireless communication A short-range wireless communication unit for a wire, a wired interface unit for wired connection, a wireless LAN unit connected to the wired interface unit by a connector, and the first device by the wired interface unit via the wireless LAN unit A first control means for establishing a first data communication link between the first device and the short-range wireless communication unit receives a connection request from the first device to the second device Second control means for establishing a first voice communication link with the first device, and a connection request from the second device to the first device is received by the short-range wireless communication unit, and the second device And a third control means for establishing a second data communication link and a second voice communication link corresponding to the first data communication link and the first voice communication link with the apparatus.
According to the fourth aspect, it is possible to obtain the same effect as the third aspect. Further, by attaching / detaching the wireless LAN unit, the wired connection or the wireless LAN connection can be made according to the specifications of the first device. Can also be supported.

According to a fifth aspect of the wireless communication apparatus of the present invention, in any one of the first to fourth aspects, the first device is a smartphone and the second device is a navigation system.
According to the second aspect, by using a wireless communication device, for example, for data communication and voice communication as in the case of a conventional mobile phone, for example, without replacing or refurbishing a smartphone and an existing navigation system. It is possible to provide a plurality of services including a dial-up connection function and a hands-free function.

  According to a sixth aspect of the wireless communication apparatus according to the present invention, in the second aspect, the first standard for short-range wireless communication included in the first apparatus and the second standard for short-range wireless communication included in the second apparatus. Are different from each other, the short-range wireless communication unit is compatible with the first standard and the second standard.

  According to the sixth aspect described above, it is not necessary to upgrade the version of the navigation system in accordance with the version of the wireless communication standard of the smartphone, for example, by supplementing the difference in the version of the wireless communication standard in the wireless communication device. .

  That is, according to the present invention, it is possible to provide a wireless communication apparatus that can supplement the function of connecting with an external device without modifying the existing device.

The figure which shows the radio | wireless communications system using the radio | wireless communication apparatus which concerns on 1st Embodiment of this invention. The sequence diagram which shows the connection process of the radio | wireless communications system of FIG. The figure which shows the radio | wireless communications system using the radio | wireless communication apparatus which concerns on 2nd Embodiment of this invention. The sequence diagram which shows the connection process of the radio | wireless communications system of FIG. The figure which shows the radio | wireless communications system using the radio | wireless communication apparatus which concerns on 3rd Embodiment of this invention.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 shows a wireless communication system using the wireless communication apparatus according to the first embodiment of the present invention.
In conventional PDC (Personal Digital cellular) and IMT-2000 (International Mobile Telecommunications 2000) standard mobile phones, even in the case of wired connection (USB interface, serial communication, etc.) with the navigation system 2, wireless connection (Bluetooth (registered trademark), In the case of Wi-Fi, etc., it was possible to provide multiple services such as data communication functions and hands-free voice calls. On the other hand, when the smartphone 1 is directly connected to the navigation system 2, for example, there may be a problem that a hands-free voice call cannot be used in a wired connection and a data communication function cannot be used in a wireless connection.

  Therefore, in this embodiment, in order to solve such a problem, the wireless communication device 3 is connected by relay connection when the smartphone 1 (first device) and the navigation system 2 (second device) are connected to each other. An example of providing a plurality of services for communication functions and hands-free voice calls will be described.

  In FIG. 1, a smartphone 1 connects a short-range wireless communication unit 11 corresponding to a Bluetooth communication function, a public network communication unit 12 that enables voice communication and data communication via a public network WAN, and devices connected via cables. Data communication by dial-up connection using the wired interface unit 14 that performs charging and data transfer, the hands-free call unit 15 that provides a hands-free call function using the public network communication unit 12, and the public network communication unit 12. A data communication unit 16 is provided.

  Bluetooth is a short-range wireless communication standard using a 2.4 GHz band radio frequency, adopts a master / slave system, and forms a wireless service area called a piconet with a radius of about 10 m centering on a master device. The master can wirelessly connect up to seven devices existing in this wireless service area as slaves.

  The navigation system 2 has a basic function of route guidance from the current location to the destination, and further uses a dial-up function of the short-range wireless communication unit 21 corresponding to the Bluetooth communication function, the smartphone 1, a mobile phone, etc., and VICS (registered trademark). ) Using the information providing service unit 23 that provides information, weather information, etc., and the hands-free call function of the smartphone 1 or mobile phone, etc., the voice uttered by the user is input by the microphone, and the received voice of the other party is the speaker. Has a hands-free service unit 22 for outputting.

  The wireless communication device 3 includes a short-range wireless communication unit 31 corresponding to a Bluetooth communication function, a wired interface unit 32, and a control unit 33 that performs a connection process between the smartphone 1 and the navigation system 2.

The control unit 33 impersonates the navigation system 2 with the smartphone 1, establishes a first data communication link by the wired interface unit 32, and issues a connection request from the smartphone 1 to the navigation system 2 by the short-range wireless communication unit 31. Receive and establish a first voice communication link. On the other hand, the control unit 33 impersonates the smartphone 1 with the navigation system 2 and receives a connection request from the navigation system 2 to the smartphone 1 by the short-range wireless communication unit 31 to receive the first data communication link and the one voice. A second data communication link and a second voice communication link corresponding to the communication link are established.
Note that the wired interface unit included in the smartphone 1 or the wireless communication device 3 may have an interface function compatible with, for example, USB (Universal Serial Bus).

Next, the operation of the wireless communication system configured as described above will be described. FIG. 2 is a sequence diagram showing the concatenation process of the wireless communication system shown in FIG.
Here, a case where the wired interface in the wired interface unit has a USB interface function will be described.

(First stage: wired connection with smartphone)
When the power of the wireless communication device 3 is turned on, the control unit 33 enters a USB device detection waiting state as a wired connection initial setting (step S1). When the USB connection with the smartphone 1 is detected, the control unit 33 establishes a USB data link (first data communication link) for data communication with the smartphone 1. If the USB connection cannot be detected at this time, the process proceeds to step S3.

(Second stage: Bluetooth connection with smartphone)
Next, the control unit 33 of the wireless communication device 3 sets its device type to the device type of the navigation system 2 (Device Class = “Audio Gateway”), and waits for a connection request (Status = “Page Scan Enable”). ) And waits for a connection request from the master while periodically switching the reception frequency (step S3). Note that a timer is set at this time, and if a connection request is not received within a predetermined time and a timeout occurs, the process proceeds to step S10.

  The smartphone 1 detects (Page Scan) a remote device that exists in the wireless service area of its own device (step S4). When the wireless communication device 3 waiting for a connection request is detected, the smartphone 1 recognizes the wireless communication device 3 as a navigation system (Device Class = “Audio Gateway”) that is a target device. Similarly, the navigation system 2 also detects a remote device (Page Scan) existing in the wireless service area of its own device (Step S5). If a wireless communication device 3 waiting for a connection request is detected, the navigation system 2 recognizes the wireless communication device 3 as a peripheral similar device (Device Class = “Audio Gateway”), and the target device (Device Class = “CELL Phone”) is repeated.

  The smartphone 1 transmits an HFP (Hands Free Profile) link connection request for performing a hands-free voice call to the detected wireless communication device 3 (step S6). When a connection response (operable with the HFP profile) is transmitted from the wireless communication device 3 to the smartphone 1, an HFP link is established between the smartphone 1 and the wireless communication device 3 (step S7). Then, after the HFP link is established, the wireless communication device 3 confirms the dependency relationship of the link. If the own device is not the master, the own device is switched to the master (step S8), and the smartphone 1 is switched to the slave. (Step S9).

(3rd stage: Bluetooth connection with navigation system)
Next, the control unit 33 of the wireless communication device 3 sets its own device type to the device type of the smartphone 1 (Device Class = “CELL Phone”) and waits for a connection request (Status = “Page Scan Enable”). And waiting for a connection request from the master while periodically switching the reception frequency (step S10). At this time, a timer is set, and if a connection request is not received within a predetermined time and a timeout occurs, the process proceeds to step S17.

  The navigation system 2 detects (Page Scan) a remote device existing in the wireless service area of the own device (step S11). When the wireless communication device 3 waiting for a connection request is detected, the navigation system 2 recognizes the wireless communication device 3 as a target device (Device Class = “CELL Phone”).

  The navigation system 2 transmits to the detected wireless communication device 3 a connection request for a DFP (Dial-Up Networking Profile) link for dial-up connection with an HFP link for performing a hands-free voice call (step) S12). When a connection response (operable with the HFP / DUN profile) is transmitted from the wireless communication device 3 to the navigation system 2, an HFP link and a DUN link are established between the navigation system 2 and the wireless communication device 3 (step S13, S14). Then, after the HFP link and the DUN link are established, the wireless communication device 3 confirms the dependency relationship of the link, and when the own device is not the master, the own device is switched to the master (step S15), and the navigation system 2 Is switched to a slave (step S16).

  After performing the connection process as in the first to third stages, the wireless communication device 3 enters an operating state (step S17). As described above, when the smartphone 1 and the navigation system 2 are connected, the wireless communication device 3 is relay-connected and the wired connection link and the wireless connection link are aggregated, so that the smartphone 1 and the navigation system 2 are similar to the conventional mobile phone. It is possible to provide a plurality of services such as a data communication function and a hands-free voice call function without exchanging or repairing the device.

  As described above, in the above embodiment, the radio communication device 3 is recognized as a mobile phone having the same function as a conventional mobile phone from the navigation system 2 (connected device). As a result, the connected device solves the problem in connection with the smartphone 1 and can provide the same service to the end user. Using the telematics service of each automobile manufacturer, it can be provided as an alternative means of service supply to all end users who shift from mobile phones to smartphones.

  In addition, for example, when the version of the wireless communication standard is different between the smartphone 1 and the navigation system 2 or when the interface standard in the cable is different, a plurality of short distances are provided so that the wireless communication device 3 can correspond to each version. A short-range wireless communication unit and a wired interface unit having compatibility with the wireless communication unit and the wired interface unit or both versions are provided. It is necessary to upgrade the navigation system 2 in accordance with, for example, the wireless communication standard of the smartphone 1 or the version of the wired interface by complementing the differences in the wireless communication standard 3 or the version of the wired interface in the wireless communication device 3. Absent.

  Therefore, according to the above-described embodiment, it is possible to provide a plurality of service functions without modifying the connected device and further the smartphone side, and improvement can be expected, and the function providing mechanism and combination are affected. It can contribute to expansion of connected devices and smartphones by being able to respond flexibly. The cost of reviewing and changing the specifications of stakeholder specifications for interconnected devices can be minimized on a retrofit, and it will be provided and established on conventional mobile phones following the market migration to smartphones where demand is rapidly increasing. Can compensate for the lack of functionality.

[Second Embodiment]
FIG. 3 shows a wireless communication system using the wireless communication apparatus according to the second embodiment. In the second embodiment, wireless LAN interface units 17 and 34 are provided instead of the wired interface units 14 and 32 of FIG. The wireless LAN interface unit 17 operates as an access point (AP), and the wireless LAN interface unit 34 operates as a station (STA) as a client, so that an IP packet can be transmitted by WiFi (Wireless Fidelity) or the like that is a wireless LAN standard. Enables wireless connection by communication. In FIG. 3, since the other configuration is the same as that of the first embodiment, the same parts as those in FIG.

FIG. 4 is a sequence diagram showing the concatenation process of the wireless communication system shown in FIG. Here, a case where the wireless connection by the wireless LAN interface units 17 and 34 corresponding to the first stage has a WiFi communication function will be described.
When the power supply of the wireless communication device 3 is turned on, the control unit 33 operates the wireless LAN interface unit 34 as a station (STA) as a WiFi connection initial setting, to the access point (AP) of the wireless LAN client unit 17. A connection request is executed, and a connection waiting state is entered (step S21). When the connection with the smartphone 1 is permitted, the control unit 33 establishes an IP link (first data communication link) for data communication with the smartphone 1 (step S22). Thereafter, the operation is the same as S3 to S17 in FIG.

  As described above, according to the second embodiment, the smartphone 1 and the navigation system 2 are connected by establishing a data communication link by IP connection using the wireless LAN (WiFi) function of the smartphone. It is possible to provide a plurality of services such as a data communication function and a hands-free voice call without connecting the wireless communication device 3 without a cable and modifying existing devices.

[Third Embodiment]
FIG. 5 shows a wireless communication system using the wireless communication apparatus according to the third embodiment. In the third embodiment, the wireless communication device 3 is configured in the same manner as in FIG. 1, and the wired interface unit 32 is provided with a USB connection terminal, for example, and a wireless LAN unit 35 such as WiFi is connected by a connector. The smartphone 1 is configured in the same manner as in FIG. 3, and the wired interface unit 17 enables wireless LAN connection with the wireless LAN unit 35. Since other configurations and operations are the same as those of the second embodiment, detailed description thereof is omitted.
Thus, even when configured as in the third embodiment, the same effects as in the second embodiment can be obtained, and by connecting and disconnecting the wireless LAN unit 35, the USB connection can be made in accordance with the specifications of the smartphone 1. In addition, wireless LAN connection can be supported.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Smartphone, 11 ... Near field communication part, 12 ... Public network communication part, 14 ... Wired interface part, 15 ... Hands-free call part, 16 ... Data communication part, 2 ... Navigation system, 21 ... Near field communication part , 22 ... Hands-free service unit, 23 ... Information providing service unit, 3 ... Wireless communication device, 31 ... Short-range wireless communication unit, 32 ... Wired interface unit, 33 ... Control unit, 17 ... Wireless LAN interface unit, 34 ... Wireless LAN interface, 35 ... wireless LAN unit.

Claims (6)

The first communication is performed between the first device and the first device that performs voice communication and data communication by the first communication and voice communication and data communication through the public line network. A wireless communication device used in a wireless communication system including a second device,
A first communication unit for the first communication;
A second communication interface unit for the second communication;
First control means for establishing a first data communication link with the first device by the second communication interface unit;
Second control means for receiving a connection request from the first device to the second device by the first communication unit and establishing a first voice communication link with the first device;
Second data corresponding to the first data communication link and the first voice communication link with the second device upon receiving a connection request from the second device to the first device by the first communication unit A wireless communication apparatus comprising: a third control means for establishing a communication link and a second voice communication link. A first device for performing voice communication and data communication via a public network and performing voice communication using short-range wireless communication using a frequency hopping method and data communication using a wired connection; and A wireless communication device used in a wireless communication system comprising a second device that performs the short-range wireless communication with
The short-range wireless communication unit for the short-range wireless communication;
A wired interface unit for the wired connection;
First control means for establishing a first data communication link with the first device by the wired interface unit;
Second control means for receiving a connection request from the first device to the second device by the short-range wireless communication unit and establishing a first voice communication link with the first device;
The short-range wireless communication unit receives a connection request from the second device to the first device, and corresponds to the first data communication link and the first voice communication link between the second device and the second device. And a third control means for establishing a data communication link and a second voice communication link. A first device for performing voice communication and data communication via a public network, and performing voice communication using short-range wireless communication using a frequency hopping method and data communication using a wireless LAN connection; A wireless communication device used in a wireless communication system including a second device that performs the short-range wireless communication with a device,
The short-range wireless communication unit for the short-range wireless communication;
A wireless LAN interface for wireless LAN connection;
First control means for establishing a first data communication link with the first device by the wireless LAN interface unit;
Second control means for receiving a connection request from the first device to the second device by the short-range wireless communication unit and establishing a first voice communication link with the first device;
The short-range wireless communication unit receives a connection request from the second device to the first device, and corresponds to the first data communication link and the first voice communication link between the second device and the second device. And a third control means for establishing a data communication link and a second voice communication link. A first device for performing voice communication and data communication via a public network, and performing voice communication using short-range wireless communication using a frequency hopping method and data communication using a wireless LAN connection; A wireless communication device used in a wireless communication system including a second device that performs the short-range wireless communication with a device,
The short-range wireless communication unit for the short-range wireless communication;
A wired interface unit for the wired connection;
A wireless LAN unit connected to the wired interface unit by a connector;
First control means for establishing a first data communication link with the first device by the wired interface unit via the wireless LAN unit;
Second control means for receiving a connection request from the first device to the second device by the short-range wireless communication unit and establishing a first voice communication link with the first device;
The short-range wireless communication unit receives a connection request from the second device to the first device, and corresponds to the first data communication link and the first voice communication link between the second device and the second device. And a third control means for establishing a data communication link and a second voice communication link.   The wireless communication device according to claim 1, wherein the first device is a smartphone and the second device is a navigation system.   When the first standard for short-range wireless communication included in the first device is different from the second standard for short-range wireless communication included in the second device, the short-range wireless communication unit determines whether the first standard and the first standard The wireless communication apparatus according to claim 2, wherein the wireless communication apparatus is compatible with two standards.

Images