专利汇可以提供METHOD AND APPARATUS FOR ESTABLISHING CIRCUIT SWITCHED LINK OF WIFI HANDHELD EQUIPMENT专利检索,专利查询,专利分析的服务。并且Embodiments of the present invention provide a method and an apparatus for establishing a circuit switched link for a WiFi handheld device, where the method includes: receiving a call request message sent by a WiFi handheld device, where the call request message is sent according to a SIP signaling format of VOIP; establishing a VOIP path with the WiFi handheld device according to the call request message; extracting a number of a called party from the call request message; and initiating a CS voice call to the called party according to the number of the called party, and establishing a CS voice path with the called party. By using the method and apparatus provided in the embodiments of the present invention, the WiFi handheld device may have a CS voice function and support a voice call without increasing any hardware cost, which enhances the service experience of a WiFi user and increases the revenue of an operator.,下面是METHOD AND APPARATUS FOR ESTABLISHING CIRCUIT SWITCHED LINK OF WIFI HANDHELD EQUIPMENT专利的具体信息内容。
This application claims priority to Chinese Patent Application No.
The present invention relates to the wireless communication field, and in particular, to a method and an apparatus for establishing a CS (Circuit Switched, circuit switched, circuit switched for short) link for a WiFi (Wireless Fidelity, wireless fidelity) handheld device in a wireless local area network.
Wi-Fi is a technology for interconnecting terminals such as a personal computer and a handheld device (for example, a PDA or a mobile phone) in wireless mode. Wi-Fi may help a user access emails, the Web, and streaming media, and may also provide wireless broadband Internet access for the user; in addition, Wi-Fi is a quick and convenient approach for network access at home or office, or on a trip. However, some existing WiFi handheld devices, for example, a flash memory MP4 player ITOUCH launched by Apple Inc., do not have a CS voice function, and support only services such as a data service and a VOIP (Voice over Internet Protocol, VOIP call) service although the devices are equipped with an external MIC (microphone, microphone) and an earphone.
Embodiments of the present invention provide a method and an apparatus for establishing a circuit switched link for a WiFi handheld device, so that the WiFi handheld device may support the CS voice, which enhances the service experience of a WiFi user and increases the revenue of an operator.
In one aspect, an embodiment of the present invention provides a method for establishing a circuit switched link for a WiFi handheld device, where the method includes: receiving a call request message sent by a WiFi handheld device, where the call request message is sent according to a SIP signaling format of VOIP; establishing a VOIP path with the WiFi handheld device according to the call request message; extracting a number of a called party from the call request message; and initiating a CS voice call to the called party according to the number of the called party, and establishing a CS voice path with the called party.
In another aspect, an embodiment of the present invention further provides a 3G router, where the 3G router includes: a first receiving unit, configured to receive a call request message sent by a WiFi handheld device, where the call request message is sent according to a SIP signaling format of VOIP; a first establishing unit, configured to establish a VOIP path with the WiFi handheld device according to the call request message; an extracting unit, configured to extract a number of a called party from the call request message; and a second establishing unit, configured to initiate a CS voice call according to the number of the called party, and establish a CS voice path with the called party.
In still another aspect, an embodiment of the present invention further provides a method for establishing a circuit switched link for a WiFi handheld device, where the method is applied to a WiFi handheld device and includes: sending a call request message to a 3G router according to a SIP signaling format of VOIP; establishing a VOIP path with the 3G router; and establishing a CS voice path with a called party through the 3G router.
In still another aspect, an embodiment of the present invention further provides a WiFi handheld device, where the WiFi handheld device includes: an establishing unit, configured to send a call request message to a 3G router according to a SIP signaling format of VOIP, establish a VOIP path with the 3G router, and establish a CS voice path with a called party through the 3G router.
In still another aspect, an embodiment of the present invention further provides a method for establishing a circuit switched link for a WiFi handheld device, where the method includes: receiving a call request message sent by a CS voice terminal; establishing a CS voice path with the CS voice terminal according to the call request message; extracting a number of the WiFi handheld device from the call request message; and establishing a VOIP path with the WiFi handheld device according to the number of the WiFi handheld device.
In still another aspect, an embodiment of the present invention further provides a 3G router, where the 3G router includes: a first receiving unit, configured to receive a call request message sent by a CS voice terminal; a first establishing unit, configured to establish a CS voice path with the CS voice terminal according to the call request message; an extracting unit, configured to extract a number of a WiFi handheld device from the call request message; and a second establishing unit, configured to establish a VOIP path with the WiFi handheld device according to the number of the WiFi handheld device.
In still another aspect, an embodiment of the present invention also provides a method for establishing a circuit switched link for a WiFi handheld device, where the method is applied to a WiFi handheld device and includes: receiving a path establishment request message, which is sent by a 3G router after the 3G router establishes a CS voice path with a CS voice terminal according to a call request message sent by the CS voice terminal; and establishing a VOIP path with the 3G router.
In still another aspect, an embodiment of the present invention further provides a WiFi handheld device, where the WiFi handheld device includes: an establishing unit, configured to receive a path establishment request message, which is sent by a 3G router after the 3G router establishes a CS voice path with a CS voice terminal according to a call request message sent by the CS voice terminal, and establish a VOIP path with the 3G router.
By using the method and apparatus provided in embodiments of the present invention, the WiFi handheld device is enabled to have a CS voice function and support a voice call without increasing any hardware cost, which enhances the service experience of a WiFi user and increases the revenue of an operator.
The accompanying drawings illustrated herein are used to provide further understanding of the present invention and constitute part of this application, but do not limit the present invention. In the drawings:
To make the objective, technical solution, and merits of the present invention clearer, the embodiments of the present invention are hereinafter described in detail with reference to embodiments and accompanying drawings. The exemplary embodiments and the descriptions thereof are intended to explain the present invention and do not serve as limitations on the present invention.
In this embodiment, the WiFi handheld device may send the call request message to the 3G router by means of the prior art, that is, the message is sent according to the SIP signaling format of the VOIP protocol and transmitted to the 3G router through WiFi, which is covered by the prior art and not described here.
The 3G router may support multiple WiFi handheld devices, and each WiFi handheld device has its own unique identifier, for example, a phone number. Therefore, when the WiFi handheld device is a calling party, the 3G router can identify which WiFi handheld device is to initiate a call; when the WiFi handheld device is a called party, the 3G router can also establish a VOIP path with the corresponding WiFi handheld device according to a number of the called party. In addition, because there is only one uplink CS voice path, in WiFi handheld devices attached to the 3G router, only one WiFi handheld device can be engaged in a call at a time.
In this embodiment, the 3G router may extract the number of the called party from the call request message.
At present, the chip of each 3G router has a CS voice function, but the CS voice function can be provided only in a manner such as externally connecting a phone; if a push button, an earphone, an earpiece, or an LCD is added to the 3G router, the cost of the 3G router will be increased.
In this embodiment, when the WiFi handheld device wants to perform a CS voice call, SIP dialing of VOIP is initiated first, and is transmitted to the 3G router device through a WiFi network; the 3G router establishes a complete VOIP path with the WiFi handheld device, extracts the called number from the call information, then initiates a CS voice call to the called party, and establishes a CS voice path with the called party according to a normal CS call procedure. In this way, the WiFi handheld device can support the CS voice function, and make a call with the called party through the foregoing VOIP path and CS voice path.
According to the method in this embodiment, the 3G router establishes a VOIP path with the WiFi handheld device, and establishes a CS voice path with the called party. In this way, the WiFi handheld device can support the CS voice function and transfer a voice stream through the foregoing VOIP path and CS voice path, which not only increases the revenue of an operator but also enhances the service experience of a WiFi user.
According to an implementation manner of this embodiment, when the WiFi handheld device sends a stream to the called party, the method further includes:
According to another implementation manner of this embodiment, when the called party sends a stream to the WiFi handheld device, the method further includes:
According to the method in this embodiment, a VOIP-CS voice path is established from the WiFi handheld device to the 3G router and then to the terminal of the called party, and the voice stream from the WiFi handheld device to the 3G router is a VOIP stream; after the 3G router converts the VOIP stream into a CS voice stream, both the call path and voice path of the calling party are established.
By using the method in this embodiment, the 3G router may assist the WiFi handheld device in supporting the CS voice function and further supporting the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
According to an implementation manner of this embodiment, the 3G router further includes:
Components of the apparatus in this embodiment are used to implement the steps of the method in the embodiment shown in
By using the 3G router of this embodiment, the WiFi handheld device is enabled to support a CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
The method in this embodiment corresponds to the method in the embodiment shown in
According to an implementation manner of this embodiment, when the WiFi handheld device sends a stream to the called party, the method further includes:
According to another implementation manner of this embodiment, when the called party sends a stream to the WiFi handheld device, the method further includes:
In this embodiment, a VOIP-CS voice path is established from the WiFi handheld device to the 3G router and then to the terminal of the called party, and the voice stream from the WiFi handheld device to the 3G router is a VOIP stream; after the 3G router converts the VOIP stream into a CS voice stream, both the call path and voice path of the calling party are established.
By using the method in this embodiment and with the assistance of the 3G router, the WiFi handheld device is enabled to support the CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
According to an implementation manner of this embodiment, the WiFi handheld device further includes:
According to an implementation manner of this embodiment, the WiFi handheld device further includes:
Components of the apparatus of this embodiment are used to implement the steps of the method in the embodiment shown in
With the cooperation of the 3G router, the WiFi handheld device in this embodiment may support a CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
In this embodiment, when a remote CS voice terminal wants to call the WiFi handheld device, the remote CS voice terminal calls the 3G router through a normal CS voice call first; after the 3G router establishes a CS voice call path with the CS voice terminal, the WiFi handheld device is called, and a VOIP path is established to the WiFi handheld device. In this way, the CS-VOIP path between the CS voice terminal and the WiFi handheld device is established, and the WiFi handheld device may use the path to make a CS voice call and support a CS voice function.
According to an implementation manner of this embodiment, when the CS voice terminal sends a stream to the WiFi handheld device, the method further includes:
According to another implementation manner of this embodiment, when the WiFi handheld device sends a stream to the CS voice terminal, the method further includes:
In this embodiment, after the CS-VOIP call path is established, the CS voice stream of the CS voice terminal is transmitted to the 3G router through the established CS voice path; after the 3G router converts the CS voice stream into a VOIP stream, the VOIP stream is transmitted to the WiFi handheld device through the VOIP path.
By using the method in this embodiment, the 3G router may assist the WiFi handheld device in supporting the CS voice function and further supporting the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
According to an implementation manner of this embodiment, the 3G router further includes:
Components of the apparatus of this embodiment are used to implement the steps of the method in the embodiment shown in
By using the 3G router in this embodiment, the WiFi handheld device may support a CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
The 3G router initiates a call to the WiFi handheld device by extracting a number of the called party from the call request message, namely, the number of the WiFi handheld device, after the 3G router establishes a CS voice path with the CS voice terminal according to the call request message upon receiving the call request message of the CS voice terminal; the WiFi handheld device receives the path establishment request message sent by the 3G router, and establishes a VOIP path with the 3G router.
The method in this embodiment corresponds to the method in the embodiment shown in
According to an implementation manner of this embodiment, when the CS voice terminal sends a stream to the WiFi handheld device, the method further includes:
According to another implementation manner of this embodiment, when the WiFi handheld device sends a stream to the CS voice terminal, the method further includes:
In this embodiment, after the CS-VOIP call path is established, the CS voice stream of the CS voice terminal is transmitted to the 3G router through the established CS voice path; after the 3G router converts the CS voice stream into a VOIP stream, the VOIP stream is transmitted to the WiFi handheld device through the VOIP path.
By using the method in this embodiment and with the assistance of the 3G router, the WiFi handheld device may support the CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
The 3G router initiates a call to the WiFi handheld device by extracting a number of a called party from the call request message, namely, the number of the WiFi handheld device, after the 3G router establishes a CS voice path with the CS voice terminal according to the call request message upon receiving the call request message of the CS voice terminal; the WiFi handheld device receives, through the establishing unit 81, the path establishment request message sent by the 3G router, and establishes a VOIP path with the 3G router.
According to an implementation manner of this embodiment, the WiFi handheld device further includes:
According to another implementation manner of this embodiment, the WiFi handheld device further includes:
Components of the apparatus of this embodiment are used to implement the steps of the method of the embodiment shown in
With the cooperation of the 3G router, the WiFi handheld device in this embodiment may support a CS voice function and further support the voice call, which enhances the service experience of a WiFi user and increases the revenue of an operator.
The method or algorithm described in combination with the embodiments disclosed in this document may be implemented by hardware directly or by a software module of a processor, or by a combination of both. The software module may be placed in a random access memory (RAM), a memory, a read only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or a storage medium of any other form known in the art.
The objectives, technical solutions, and benefits of the present invention have been described in further detail with reference to the foregoing embodiments. It should be understood that what are described above are only specific embodiments of the present invention and are not intended to limit the protection scope of the present invention. All modifications, equivalent substitutions, and improvements made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
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