WO2016206408A1 - 一种无线通信方法、设备及计算机存储介质 - Google Patents

一种无线通信方法、设备及计算机存储介质 Download PDF

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Publication number
WO2016206408A1
WO2016206408A1 PCT/CN2016/076109 CN2016076109W WO2016206408A1 WO 2016206408 A1 WO2016206408 A1 WO 2016206408A1 CN 2016076109 W CN2016076109 W CN 2016076109W WO 2016206408 A1 WO2016206408 A1 WO 2016206408A1
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Prior art keywords
csd
terminal
cpe
service
voice
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PCT/CN2016/076109
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English (en)
French (fr)
Inventor
陈毅
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中兴通讯股份有限公司
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Publication of WO2016206408A1 publication Critical patent/WO2016206408A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a wireless communication method and device.
  • LTE Long Term Evolution
  • IMS IP Multimedia Subsystem
  • VoIP Voice over LTE
  • the LTE multimedia service type based on the IMS network is relatively single, and it is urgent to include more wired traditional Circuit Switched Data (CSD) services (such as fax, home alarm system, medical alarm system, etc.).
  • CSD Circuit Switched Data
  • CPE Customer Premise Equipment
  • an embodiment of the present invention provides a wireless communication method
  • the device and the computer storage medium can implement CSD services on the CPE supporting the LTE network.
  • the embodiment of the invention provides a wireless communication method, and the method includes:
  • the wireless client device CPE establishes a voice communication channel between the first CSD terminal and the second CSD terminal based on a Session Initiation Protocol (SIP);
  • SIP Session Initiation Protocol
  • the CPE acquires a CSD tone of the first CSD terminal, and analyzes a CSD service that identifies the CSD tone representation based on the voice communication channel;
  • the CPE establishes a voice communication channel between the first CSD terminal and the second CSD terminal based on the SIP, including:
  • the CPE After receiving the voice call of the first CSD terminal, the CPE sends a SIP request INVITE message to the CPE to which the second CSD terminal belongs; the request message carries an SDP offer that represents the voice capability description information.
  • the performing capability negotiation between the first CSD terminal and the second CSD based on the CSD service and based on the SIP includes:
  • the CPE sends a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs; the request message carries an SDP offer that represents CSD capability description information of the CSD service;
  • the method further includes: the CPE acquiring a CSD tone of the first CSD terminal, and analyzing and identifying the CSD tone to represent a CSD service at the end, based on The SIP switches the CSD service channel between the first CSD terminal and the second CSD as a voice communication channel; or releases the resource between the first CSD terminal and the second CSD terminal.
  • the switching, by the SIP, the CSD service channel between the first CSD terminal and the second CSD is a voice communication channel, including:
  • a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs;
  • the request message carries an SDP offer that represents the voice capability description information;
  • the embodiment of the present invention further provides a CPE, where the CPE includes: a voice communication unit, a detecting unit, and a CSD communication unit;
  • the voice communication unit is configured to establish a voice communication channel between the first CSD terminal and the second CSD terminal based on the SIP;
  • the detecting unit is configured to acquire a CSD signal tone of the first CSD terminal based on a voice communication channel established by the voice communication unit, and analyze and identify a CSD service characterized by the CSD tone;
  • the CSD communication unit is configured to establish the first CSD based on the CSD service identified by the detecting unit and initiate capability negotiation between the first CSD terminal and the second CSD based on the SIP A CSD service channel between the terminal and the second CSD.
  • the voice communication unit is configured to: after receiving the voice call of the first CSD terminal, send a SIP request INVITE message to the CPE to which the second CSD terminal belongs; the request message carries the characterized voice SDP offer for capability description information.
  • the CSD communication unit is configured to send a SIP request message (re-INVITE) to a CPE to which the second CSD terminal belongs; the request message carries a representation An SDP offer for the CSD capability description information of the CSD service; receiving an acknowledgment message sent by the CPE to which the second CSD terminal belongs, the acknowledgment message carrying an SDP Answer; the acknowledgment message being configured to indicate the first CSD terminal
  • a SIP request message re-INVITE
  • the CSD communication unit is further configured to acquire a CSD tone of the first CSD terminal, and analyze and identify the CSD tone.
  • the voice communication is enabled based on the SIP.
  • the CSD communication unit is configured to send a SIP request message (re-INVITE) to a CPE to which the second CSD terminal belongs; the request message carries an SDP offer that represents voice capability description information, and receives An acknowledgment message sent by the CPE to which the second CSD terminal belongs, the acknowledgment message carrying an SDP Answer; the acknowledgment message being configured to indicate a voice capability negotiation between the first CSD terminal and the second CSD terminal carry out.
  • re-INVITE SIP request message
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the wireless communication method according to the embodiment of the invention.
  • the voice communication channel between the first CSD terminal and the second CSD terminal is established by the CPE based on the SIP; and the CPE acquires the voice communication channel based on the voice communication channel.
  • CSD tone of the first CSD terminal analyzing and identifying the CSD service characterized by the CSD tone; based on the CSD service and initiating capability negotiation between the first CSD terminal and the second CSD based on the SIP, Establishing a CSD service channel between the first CSD terminal and the second CSD.
  • the technical solution of the embodiment of the present invention is used to extend the function of the CPE through the SIP and the analysis and identification of the CSD signal tone, and implement the CSD service on the CPE supporting the LTE network, so that the user does not need to change the traditional
  • the use of CSD services under the wired network greatly improves user satisfaction and operational experience.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a wireless communication method according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic flowchart of a wireless communication method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic flowchart of a wireless communication method according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic diagram of application of state switching in an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a structure of a wireless client terminal device according to an embodiment of the present invention.
  • the CPE serves as a terminal access device supporting Wi-Fi and LTE networks, and provides diverse and better home network services for home users.
  • a conventional CPE provides only two interfaces. The two interfaces are connected, that is, the second interface functions as an alternate function. When the first interface is damaged, the second interface is enabled.
  • Traditional CPE also supports only voice services (such as VoLTE services).
  • the CPE of this embodiment can also implement CSD services such as fax, home alarm system, and medical alarm system.
  • CSD services such as fax, home alarm system, and medical alarm system.
  • 1 is a schematic diagram of an application scenario according to an embodiment of the present invention; as shown in FIG. 1 , the CPE in this embodiment is configured with three interfaces, as shown in interface 1, interface 2, and interface 3 in FIG. 1; The three interfaces may specifically be an RJ11 interface.
  • the CPE may be connected to the CSD terminal through the three interfaces; wherein the CSD terminal comprises: a home alarm system, a medical alarm system, a fax machine, a card reader, a TDD, a telephone, and the like; wherein the home alarm
  • the system and the medical alarm system can be multiplexed with one RJ11 interface; the fax machine, the card reader and the TDD can be multiplexed with one RJ11 interface; A standalone terminal with a separate RJ11 interface.
  • the above interface multiplexing method is not limited to the above manner.
  • the CPE functions as a terminal access device and supports registration to the LTE network, and provides a data channel for the user to share the LTE network.
  • the user can configure the access point name (APN, Access Point Name) of the IMS network through the CPE management interface, and perform automatic/manual data connection to establish a data communication channel with the IMS network to provide guarantee for data transmission.
  • APN Access Point Name
  • Embodiments of the present invention provide a wireless communication method.
  • 2 is a schematic flowchart of a wireless communication method according to Embodiment 1 of the present invention; as shown in FIG. 2, the method includes:
  • Step 201 The CPE establishes a voice communication channel between the first CSD terminal and the second CSD terminal based on the SIP.
  • the wireless communication method for supporting the CSD service in the embodiment is applied to the CPE.
  • the CPE is specifically a device connected to the first CSD terminal, and can also be understood as the first CSD terminal as the calling terminal, and the CPE is The device to which the calling terminal is connected.
  • the CPE establishes a voice communication channel between the first CSD terminal and the second CSD terminal based on the SIP, including:
  • the CPE After receiving the voice call of the first CSD terminal, the CPE sends a SIP request INVITE message to the CPE to which the second CSD terminal belongs; the request message carries an SDP offer that represents the voice capability description information.
  • the first CSD terminal initiates a voice call; after receiving the voice call, the CPE sends a SIP request (INVITE) message to a CPE (ie, a second CPE) to which the second CSD terminal belongs.
  • the INVITE message is configured to initiate the capability negotiation of the voice stream and initiate the establishment of the voice communication channel.
  • the second CPE After receiving the INVITE message, the second CPE sends a temporary response message in the call processing to the CPE.
  • the second CSD terminal starts ringing; the second CPE sends a response message to the CPE, the response message is configured to indicate that the second CSD terminal is ringing; after receiving the ringing message, the CPE indicates The first CSD terminal plays a ring back tone, the ring back tone is configured to indicate that the second CSD terminal is ringing; when the second CSD terminal responds to a voice call (ie, the second CSD terminal connects to the phone)
  • the second CPE sends an acknowledgement message to the CPE, where the acknowledgement message is configured to indicate that the voice communication channel is successfully connected; after receiving the acknowledgement message, the CPE instructs the first CSD terminal to stop playing the ringback tone. And transmitting a correct response indication to the second CPE; in summary, establishing a voice communication channel between the first CSD terminal and the second CSD terminal.
  • Step 202 Based on the voice communication channel, the CPE acquires a CSD tone of the first CSD terminal, and analyzes and identifies a CSD service characterized by the CSD tone.
  • the first CSD terminal when the first CSD terminal initiates a CSD service, the first CSD terminal sends a CSD tone (CSD tone) to the CPE; the CPE is determined according to a sound attribute parameter such as a frequency of the CSD tone.
  • the CSD service represents a CSD service.
  • Step 203 Establish a CSD service between the first CSD terminal and the second CSD based on the CSD service and initiate capability negotiation between the first CSD terminal and the second CSD based on the SIP. aisle.
  • the performing capability negotiation between the first CSD terminal and the second CSD based on the CSD service and based on the SIP includes:
  • the CPE sends a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs;
  • the request message (re-INVITE) carries an SDP offer that represents CSD capability description information of the CSD service;
  • the CPE receives an acknowledgment message sent by the CPE to which the second CSD terminal belongs, and the acknowledgment message carries an SDP Answer; the acknowledgment message is configured to indicate the first CSD end
  • the CSD capability negotiation between the terminal and the second CSD is completed.
  • the CPE sends a SIP request message (re-INVITE) to the CPE (ie, the second CPE) to which the second CSD terminal belongs, and the request message (re-INVITE) is configured to initiate a capability negotiation of the CSD flow.
  • a CSD channel establishment request the second CPE performs CSD capability negotiation according to the SDP offer in the received SIP request message (re-INVITE), and sends an acknowledgement message to the CPE, where the acknowledgement message carries a representation
  • the SDP Answer of the CSD capability negotiation is completed, and the CSD capability negotiation between the CPE and the second CPE is completed.
  • the CPE instructs the first CSD terminal to play a CSD tone (CSD tone).
  • CSD tone CSD tone
  • the function of the CPE is extended by the SIP and the analysis and identification of the CSD signal tone, and the CSD service is implemented on the CPE supporting the LTE network, so that the user does not need to change the CSD in the traditional wired network.
  • Business usage habits greatly enhance user satisfaction and operational experience.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the wireless communication method according to the embodiment of the invention.
  • FIG. 3 is a schematic flowchart of a wireless communication method according to Embodiment 2 of the present invention; as shown in FIG. 3, based on the first embodiment, after step 203, the embodiment is described in this embodiment.
  • the method also includes:
  • Step 204 The CPE acquires a CSD tone of the first CSD terminal, and analyzes and identifies the CSD tone.
  • the SIP is switched between the first CSD terminal and the second CSD based on the SIP.
  • the CSD service channel is a voice communication channel; or, the release station A resource between the first CSD terminal and the second CSD.
  • the CSD service channel between the first CSD terminal and the second CSD is a voice communication channel, and the method includes:
  • a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs; the request message (re-INVITE) carrying an SDP offer indicating the voice capability description information;
  • the CPE receives an acknowledgment message sent by the CPE to which the second CSD terminal belongs, and the acknowledgment message carries an SDP Answer; the acknowledgment message is configured to indicate between the first CSD terminal and the second CSD terminal.
  • the voice capability negotiation is completed.
  • the CPE sends a CSD tone (CSD tone); the CPE determines that the CSD tone represents a CSD service end event according to a frequency attribute parameter such as a frequency of the CSD tone, and is ready to switch the current CSD state to voice communication.
  • CSD tone represents a CSD service end event according to a frequency attribute parameter such as a frequency of the CSD tone
  • a CPE sends a SIP request message (re-INVITE) to the CPE (ie, the second CPE) to which the second CSD terminal belongs, and the request message (re-INVITE) is configured to initiate voice capability negotiation and Initiating a request for establishing a voice communication channel;
  • the second CPE sends an acknowledgement message to the CPE after receiving the voice capability negotiation according to the SDP offer in the request message (re-INVITE), where the acknowledgement message carries Determining the voice capability negotiation between the CPE and the second CPE, and the CPE sends a correct response indication to the second CPE to confirm receipt of the acknowledgement message; , Reestablishing a voice communication channel between the first CSD terminal and the second CSD terminal.
  • the function of the CPE is extended by the SIP and the analysis and identification of the CSD signal tone, and the CSD service is implemented on the CPE supporting the LTE network, so that the user does not need to change the CSD in the traditional wired network.
  • Business habits have greatly improved User satisfaction and operational experience.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the wireless communication method according to the embodiment of the invention.
  • FIG. 4 is a schematic flowchart of a wireless communication method according to Embodiment 3 of the present invention; in this embodiment, four terminals are included: User Equipment (UE), UE2, Gateway (GW)1, and Gateway (GW)2; The UE 1 and the UE 2 are both CSD terminals; the gateway (GW) 1 and the gateway (GW) 2 are CPEs; the gateway (GW) 1 and the gateway (GW) 2 are connected through a network interconnection protocol (IP, Internet). Protocol) The network implements data transmission. As shown in FIG. 4, the method includes:
  • Step 1.1 UE1 picks up the phone and initiates a voice call.
  • Step 1.2 GW1 sends a SIP request (INVITE) message to the GW2 through the IP network, where the INVITE message is configured to initiate voice capability negotiation and initiate a voice communication channel establishment request; the INVITE message carries the voice capability description information. SDP offer.
  • INVITE SIP request
  • Step 1.3 After receiving the INVITE message, GW2 will send a response message (100 Trying) in the call processing to GW1.
  • Step 1.4 GW2 notifies UE2 to start ringing.
  • Step 1.5 After UE2 starts ringing, GW2 sends a response message (180 Ringing) to GW1, and the response message is configured to indicate that UE2 is ringing.
  • a response message 180 Ringing
  • Step 1.6 After receiving the 180Ringing message, the GW1 notifies the UE1 to play a ringback tone, and the ringback tone is configured to indicate that the UE2 is ringing.
  • Step 1.7 The called user picks up the phone, which can be understood as the UE2 is connected to the phone.
  • Step 1.8 GW2 sends an acknowledgment message (200 OK) to GW1, the acknowledgment message configuration A response indicating that the voice communication channel connection is successful.
  • Step 1.9 After receiving the 200 OK message, GW1 notifies UE1 to stop playing the ring back tone.
  • Step 1.10 GW1 sends a Correct Response Indication (ACK) message to GW2, the ACK message being configured to notify the GW1 that the 200 OK message has been received.
  • ACK Correct Response Indication
  • Step 1.11 A voice communication channel between the UE1 and the UE2 is established, and a voice call can be performed between the UE1 and the UE2.
  • Step 2.1 When the user selects the CSD service, UE1 sends a CSD tone (CSD tone) to GW1.
  • CSD tone CSD tone
  • Step 2.2 GW1 analyzes the CSD tone by its own detecting unit, and determines that the CSD tone represents a CSD service start event, and is ready to switch to the CSD state.
  • Step 2.3 GW1 sends a SIP request message (re-INVITE) to the GW2 through the IP network, and the request message (re-INVITE) is configured to initiate a capability negotiation of the CSD stream and a CSD channel establishment request, the request message (re- INVITE) carries an SDP offer that characterizes CSD capability description information.
  • re-INVITE SIP request message
  • re- INVITE SIP request message
  • Step 2.4 After completing the CSD capability negotiation according to the received SDP offer in the SIP request message (re-INVITE), the GW2 sends an acknowledgment message (200 OK), where the acknowledgment message carries an SDP that indicates that the CSD capability negotiation is completed. Answer: Complete the CSD capability negotiation between the GW2 and the GW1.
  • Step 2.5 After receiving the 200 OK message, the GW1 notifies the UE1 to play the CSD tone, and the CSD tone is configured to indicate that the CSD service is successfully switched.
  • Step 2.6 GW1 sends a Correct Response Indication (ACK) message to GW2, the ACK message being configured to notify the GW1 that the 200 OK message has been received.
  • ACK Correct Response Indication
  • Step 2.7 After the GW sends the ACK, the CSD channel between the UE1 and the UE2 is established, and the CSD service can be performed.
  • Step 3.1 When the CSD service ends, the CSD terminal UE1 sends a CSD tone to GW1.
  • Step 3.2 GW1 analyzes the CSD tone by its own detecting unit, and determines that the CSD tone characterizes the CSD service end event, and prepares to switch to the voice communication state.
  • Step 3.3 GW1 sends a SIP request message (re-INVITE) to the GW2 through the IP network, and the request message (re-INVITE) is configured to initiate a capability negotiation of the voice stream and a request for establishing a voice communication channel, the request message (re - INVITE) carries an SDP offer that characterizes voice capability description information.
  • Step 3.4 After the GW2 completes the voice capability negotiation according to the received SDP offer in the SIP request message (re-INVITE), the GW2 sends an acknowledgment message (200OK), where the acknowledgment message carries the SDP indicating that the voice capability negotiation is completed. Answer, complete the CSD capability negotiation of the GW2 and GW1.
  • Step 3.5 GW1 sends a Correct Answer Indication (ACK) message to GW2, the ACK message being configured to notify the GW1 that the 200 OK message has been received.
  • ACK Correct Answer Indication
  • Step 3.6 The voice channel between UE1 and UE2 is re-established and begins to enter the call state.
  • Step 4.1 When UE1 wants to end the voice service, it performs an on-hook operation.
  • Step 4.2 GW1 sends a termination (BYE) request to GW2 requesting to release the resource.
  • BYE termination
  • Step 4.3 After receiving the BYE request, GW2 will notify UE2 to play a busy tone.
  • Step 4.4 At the same time, GW2 sends an acknowledgment message (200 OK) to GW1, which indicates that the resource has been successfully released.
  • Step 4.5 At this point, UE1 and UE2 enter an idle state, waiting for the user's next call request operation.
  • FIG. 5 is a schematic diagram of application of state switching according to an embodiment of the present invention.
  • a state machine may be set in the CPE, where the state machine includes three states: an idle state, a CSD state, and a voice communication state; ,
  • the idle state the system is in an idle state
  • the voice communication state the voice of the calling and called terminals through voice capability negotiation and response, voice The channel has been successfully established, and a voice call can be made between the calling and called terminals;
  • the CSD status the CSS channel has been successfully established through the CSD capability negotiation and response response, and the CSD service can be performed between the calling and called terminals.
  • the state transition relationship is as shown in 2).
  • any terminal of the calling and called terminals performs an on-hook operation, and at this time, the CPE will switch from the voice communication state to the idle state.
  • the process of switching from the voice communication state to the idle state may be as shown in step 4.1 to step 4.5 in FIG.
  • the state transition relationship is as shown in 3
  • the CPE When switching from the voice communication state to the CSD state (the state transition relationship is as shown in 3).
  • the CPE When the CSD Tone characterizing the CSD start event is received when the calling and called terminals are in the voice communication state, the CPE initiates a state switching, and switches to the CSD state through the coding switching and the CSD capability negotiation between the calling and the called terminals.
  • the process of switching from the voice communication state to the CSD state may be as shown in step 2.1 to step 2.7 in FIG.
  • the state transition relationship is as shown in 4
  • the calling and called terminals are in the CSD state and receive the CSD Tone indicating the CSD end event, the CPE will initiate a state switching and re-switch to the voice communication state through the voice capability negotiation between the calling and called terminals.
  • the state transition relationship is as shown in 5
  • the calling and called terminals are in the CSD state, if any of the calling and called terminals selects the on-hook operation, the CPE will send a release resource request and switch to the idle state.
  • the process of switching from the CSD state to the idle state may refer to steps 4.1 to 4.5 in FIG.
  • FIG. 6 is a schematic structural diagram of a wireless client terminal device according to an embodiment of the present invention; as shown in FIG. 6, the CPE includes: a voice communication unit 61, a detecting unit 62, and a CSD communication unit 63;
  • the voice communication unit 61 is configured to establish a voice communication channel between the first CSD terminal and the second CSD terminal based on the session initiation protocol SIP;
  • the detecting unit 62 is configured to acquire a CSD signal tone of the first CSD terminal based on a voice communication channel established by the voice communication unit 61, and analyze and identify a CSD service characterized by the CSD tone;
  • the CSD communication unit 63 is configured to establish, according to the CSD service identified by the detecting unit 62, a capability negotiation between the first CSD terminal and the second CSD based on the SIP, A CSD service channel between a CSD terminal and the second CSD.
  • the voice communication unit 61 is configured to: after receiving the voice call of the first CSD terminal, send a SIP INVITE message to the CPE to which the second CSD terminal belongs; the request message carries the voice capability An SDP offer that describes the information.
  • the CSD communication unit 63 is configured to send a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs; the re-INVITE carries the SDP that represents the CSD capability description information of the CSD service. Receiving an acknowledgment message sent by the CPE to which the second CSD terminal belongs, the acknowledgment message carrying an SDP Answer; the acknowledgment message being configured to indicate a CSD between the first CSD terminal and the second CSD Capacity negotiation is completed.
  • re-INVITE SIP request message
  • the CPE in this embodiment is specifically a device connected to the first CSD terminal, and may also be understood as a first CSD terminal as a calling terminal, and the CPE is a device connected to the calling terminal.
  • the embodiment of the present invention further provides a CPE.
  • the CSD communication unit 63 is further configured to acquire a CSD signal tone of the first CSD terminal, and analyze and identify the CSD signal, as shown in FIG.
  • the voice communication unit 61 is enabled based on the SIP, and the CSD service channel between the first CSD terminal and the second CSD is switched as a voice communication channel; or A resource between a CSD terminal and the second CSD.
  • the CSD communication unit 63 is configured to send a SIP request message (re-INVITE) to the CPE to which the second CSD terminal belongs; the re-INVITE carries an SDP offer that represents the voice capability description information; An acknowledgment message sent by the CPE to which the second CSD terminal belongs, the acknowledgment message carrying an SDP Answer; the acknowledgment message being configured to indicate that the voice capability negotiation between the first CSD terminal and the second CSD terminal is completed.
  • re-INVITE SIP request message
  • the detecting unit 62 in the CPE may be used by a central processing unit (CPU, Central Processing Unit) and a digital signal processor (DSP, Digital) in the CPE. Signal Processor) or a Field-Programmable Gate Array (FPGA); the voice communication unit 61 and the CSD communication unit 63 in the CPE, in practical applications, may be transceivers or transceivers in the CPE. Antenna implementation.
  • CPU Central Processing Unit
  • DSP digital signal processor
  • FPGA Field-Programmable Gate Array
  • the disclosed apparatus and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • optical disk A medium that can store program code.
  • the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • Make a computer device can be a personal computing The machine, server, or network device, etc.) performs all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the embodiment of the present invention expands the function of the CPE by using the SIP and the analysis and identification of the CSD signal tone, and implements the CSD service on the CPE supporting the LTE network, so that the user does not need to change the usage habit of using the CSD service under the traditional wired network. Greatly improved user satisfaction and operating experience.

Abstract

本发明实施例公开了一种无线通信方法、设备及计算机存储介质；所述方法包括：无线客户端设备(CPE)基于会话初始协议(SIP)建立第一电路交换数据(CSD)终端和第二CSD终端之间的语音通信通道；基于所述语音通信通道，所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。

Description

一种无线通信方法、设备及计算机存储介质 技术领域
本发明涉及无线通信技术，具体涉及一种无线通信方法及设备。
背景技术
随着长期演进(LTE，Long Term Evolution)技术的发展，LTE网络正在积极部署，以便给用户提供更加高速稳定的数据通路。同时，IP多媒体子系统(IMS，IP Multimedia Subsystem)网络作为运营商多媒体处理的核心解决方案，也在逐步与LTE网络进行无缝融合，以便实现基于IMS网络的LTE业务，如基于IMS的语音业务(VoLTE，Voice over LTE)等。但是，目前，基于IMS网络的LTE多媒体业务种类相对单一，迫切需要将更多的基于有线的传统电路交换数据(CSD，Circuit Switched Data)业务(如传真、家庭报警系统、医疗报警系统等)纳入到这一系统中，为用户提供更加高效和高质量的服务，吸引用户。
无线客户终端设备(CPE，Customer Premise Equipment)作为一种支持无线保真(Wi-Fi，Wireless-Fidelity)和LTE网络的终端接入设备，为家庭用户提供了多样和较好的家庭网络服务，越来越成为家庭用户共享LTE数据网络的标准解决方案。但是，目前CPE支持的业务种类单一，主要支持Wi-Fi、数据和语音业务，无法支持更多的传统有线CSD设备，如传真、销售终端(POS，Point of Sale)机，聋人电讯设备(TDD，Telecommunication Device for the Deaf)、家庭报警系统，医疗报警系统等等。
发明内容
为解决现有存在的技术问题，本发明实施例提供一种无线通信方法、 设备及计算机存储介质，能够在支持LTE网络的CPE上实现CSD业务。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种无线通信方法，所述方法包括：
无线客户端设备CPE基于会话初始协议(SIP，Session Initiation Protocol)建立第一CSD终端和第二CSD终端之间的语音通信通道；
基于所述语音通信通道，所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；
基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
作为一种实施方式，所述CPE基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道，包括：
所述CPE接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求INVITE消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
作为一种实施方式，所述基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，包括：
所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息携带有表征所述CSD业务的CSD能力描述信息的SDP offer；
所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的CSD能力协商完成。
作为一种实施方式，所述方法还包括：所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于 所述SIP切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道；或者，释放所述第一CSD终端和所述第二CSD终端之间的资源。
作为一种实施方式，所述基于所述SIP切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道，包括：
所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息携带有表征语音能力描述信息的SDP offer；
所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的语音能力协商完成。
本发明实施例还提供了一种CPE，所述CPE包括：语音通信单元、检测单元和CSD通信单元；其中，
所述语音通信单元，配置为基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道；
所述检测单元，配置为基于所述语音通信单元建立的语音通信通道，获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；
所述CSD通信单元，配置为基于所述检测单元识别出的所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
作为一种实施方式，所述语音通信单元，配置为接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求INVITE消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
作为一种实施方式，所述CSD通信单元，配置为向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息携带有表征所 述CSD业务的CSD能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的CSD能力协商完成。
作为一种实施方式，所述CSD通信单元，还配置为获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于所述SIP使能所述语音通信单元，切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道；或者，释放所述第一CSD终端和所述第二CSD之间的资源。
作为一种实施方式，所述CSD通信单元，配置为向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息携带有表征语音能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD终端之间的语音能力协商完成。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的无线通信方法。
本发明实施例提供的无线通信方法、设备及计算机存储介质；通过CPE基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道；基于所述语音通信通道，所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。如此，采用本发明实施例的技术方案，通过SIP以及对CSD信号音的分析识别，扩展了CPE的功能，在支持LTE网络的CPE上实现了CSD业务，使用户无需改变在传统 的有线网络下使用CSD业务的使用习惯，大大提升了用户的满意度和操作体验。
附图说明
图1为本发明实施例的应用场景示意图；
图2为本发明实施例一的无线通信方法的流程示意图；
图3为本发明实施例二的无线通信方法的流程示意图；
图4为本发明实施例三的无线通信方法的流程示意图；
图5为本发明实施例中的状态切换的应用示意图；
图6为本发明实施例的无线客户终端设备的组成结构示意图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细的说明。
本实施例中，CPE作为一种支持Wi-Fi和LTE网络的终端接入设备，为家庭用户提供了多样和较好的家庭网络服务。传统的CPE仅提供了两个接口，所述两个接口是连通的，也即第二个接口作为备用功能，当第一个接口损坏后启用第二个接口。传统的CPE也仅支持语音业务(如VoLTE业务)。
基于原有的语音业务(如VoLTE业务)，本实施例的CPE还能够实现如传真、家庭报警系统、医疗报警系统等CSD业务。图1为本发明实施例的应用场景示意图；如图1所示，本实施例所述的CPE设置有三个接口，如图1中的接口1、接口2和接口3所示；其中，所述三个接口具体可以为RJ11接口。所述CPE可通过所述三个接口与CSD终端连接；其中，所述CSD终端包括：家庭报警系统、医疗报警系统、传真机、读卡器、TDD和电话等终端；其中，所述家庭报警系统和所述医疗报警系统可通复用一个RJ11接口；所述传真机、读卡器和TDD可复用一个RJ11接口；电话作为 一个独立的终端，可使用一个独立的RJ11接口。当然，上述接口复用方式不限于上述方式。
所述CPE作为终端接入设备，支持注册到LTE网络，为用户提供了共享LTE网络的数据通道。用户可以通过CPE的管理界面配置IMS网络的接入点名称(APN，Access Point Name)，并进行自动/手动的数据连接，从而建立与IMS网络的数据通信通道，为数据传输提供保证。
基于上述提供的应用场景提出以下实施例。
实施例一
本发明实施例提供了一种无线通信方法。图2为本发明实施例一的无线通信方法的流程示意图；如图2所示，所述方法包括：
步骤201：CPE基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道。
本实施例所述的支持CSD业务的无线通信方法应用于CPE中，所述CPE具体为与第一CSD终端连接的设备，也可以理解为第一CSD终端为主叫终端，所述CPE为与主叫终端连接的设备。
这里，所述CPE基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道，包括：
所述CPE接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求INVITE消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
具体的，所述第一CSD终端发起语音呼叫；所述CPE接收到所述语音呼叫后，向所述第二CSD终端归属的CPE(即第二CPE)发送SIP的请求(INVITE)消息，所述INVITE消息配置为发起语音流的能力协商以及发起语音通信通道的建立请求；所述第二CPE接收到所述INVITE消息后，一方面向所述CPE发送表征呼叫处理中的临时应答消息，另一方面指示所 述第二CSD终端开始振铃；所述第二CPE向所述CPE发送响应消息，所述响应消息配置为指示所述第二CSD终端正在振铃；所述CPE接收到振铃消息后，指示所述第一CSD终端播放回铃音，所述回铃音配置为指示所述第二CSD终端正在振铃；在所述第二CSD终端响应语音呼叫(即第二CSD终端接通电话)时，所述第二CPE向所述CPE发送确认消息，所述确认消息配置为指示语音通信通道连接成功；所述CPE接收到所述确认消息后，指示所述第一CSD终端停止播放回铃音，并向所述第二CPE发送正确应答指示；综上，建立第一CSD终端和第二CSD终端之间的语音通信通道。
步骤202：基于所述语音通信通道，所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务。
这里，当所述第一CSD终端发起CSD业务时，所述第一CSD终端向所述CPE发送CSD信号音(CSD tone)；所述CPE根据所述CSD信号音的频率高低等声音属性参数确定所述CSD信号音表征的CSD业务，当确定是CSD业务开始事件时，所述CPE准备将当前的语音通信状态切换至CSD状态。
步骤203：基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
这里，所述基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，包括：
所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息(re-INVITE)携带有表征所述CSD业务的CSD能力描述信息的SDP offer；
所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终 端和所述第二CSD之间的CSD能力协商完成。
具体的，所述CPE向所述第二CSD终端归属的CPE(即第二CPE)发送SIP的请求消息(re-INVITE)，所述请求消息(re-INVITE)配置为发起CSD流的能力协商以及CSD通道的建立请求；所述第二CPE根据接收到的SIP的请求消息(re-INVITE)中的SDP offer完成CSD能力协商，向所述CPE发送确认消息，所述确认消息中携带有表征完成CSD能力协商的SDP Answer，完成所述CPE和所述第二CPE之间的CSD能力协商；所述CPE接收到所述确认消息后，指示第一CSD终端播放CSD信号音(CSD tone)，以指示CSD业务切换成功；所述CPE向所述第二CPE发送正确应答指示，确认收到所述确认消息；综上，建立第一CSD终端和第二CSD终端之间的CSD业务通道。
采用本发明实施例的技术方案，通过SIP以及对CSD信号音的分析识别，扩展了CPE的功能，在支持LTE网络的CPE上实现了CSD业务，使用户无需改变在传统的有线网络下使用CSD业务的使用习惯，大大提升了用户的满意度和操作体验。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的无线通信方法。
实施例二
本发明实施例还提供了一种无线通信方法；图3为本发明实施例二的无线通信方法的流程示意图；如图3所示，基于实施例一，在步骤203之后，本实施例所述方法还包括：
步骤204：所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于所述SIP切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道；或者，释放所 述第一CSD终端和所述第二CSD之间的资源。
其中，所述基于所述SIP切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道，包括：
所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述请求消息(re-INVITE)携带有表征语音能力描述信息的SDP offer；
所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD终端之间的语音能力协商完成。
具体的，当所述第一CSD终端和所述第二CSD终端进行CSD业务时，当CSD业务结束时，假设所述第一CSD终端主动要求结束CSD业务，则所述第一CSD终端向所述CPE发送CSD信号音(CSD tone)；所述CPE根据所述CSD信号音的频率高低等声音属性参数确定所述CSD信号音表征CSD业务结束事件时，准备将当前的CSD状态切换至语音通信状态；所述CPE向所述第二CSD终端归属的CPE(即第二CPE)发送SIP的请求消息(re-INVITE)，所述请求消息(re-INVITE)配置为发起语音流的能力协商以及发起语音通信通道的建立请求；所述第二CPE根据接收到所述请求消息(re-INVITE)中的SDP offer完成语音能力协商后，向所述CPE发送确认消息，所述确认消息中携带有表征完成语音能力协商的SDP Answer，完成所述CPE和所述第二CPE之间的语音能力协商；所述CPE向所述第二CPE发送正确应答指示，确认收到所述确认消息；综上，重新建立第一CSD终端和第二CSD终端之间的语音通信通道。
采用本发明实施例的技术方案，通过SIP以及对CSD信号音的分析识别，扩展了CPE的功能，在支持LTE网络的CPE上实现了CSD业务，使用户无需改变在传统的有线网络下使用CSD业务的使用习惯，大大提升了 用户的满意度和操作体验。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的无线通信方法。
实施例三
本实施例结合具体应用场景对本发明实施例提供的无线通信方法进行详细说明。图4为本发明实施例三的无线通信方法的流程示意图；本实施例中包括四个终端：用户设备(UE，User Equipment)1、UE 2、网关(GW)1和网关(GW)2；其中，UE 1和UE 2均为CSD终端；网关(GW)1和网关(GW)2为CPE；所述网关(GW)1和所述网关(GW)2中间通过网络互联协议(IP，Internet Protocol)网络实现数据传输。如图4所示，所述方法包括：
步骤1.1：UE1摘机发起语音呼叫。
步骤1.2：GW1通过IP网络向GW2发送SIP的请求(INVITE)消息，所述INVITE消息配置为发起语音流的能力协商和发起语音通信通道的建立请求；所述INVITE消息携带有表征语音能力描述信息的SDP offer。
步骤1.3：GW2收到所述INVITE消息后，将向GW1发送表征呼叫处理中的应答消息(100Trying)。
步骤1.4：GW2通知UE2开始振铃。
步骤1.5：UE2开始振铃后，GW2向GW1发送响应消息(180Ringing)，所述响应消息配置为指示UE2正在振铃。
步骤1.6：GW1接收到所述180Ringing消息后，通知UE1播放回铃音，所述回铃音配置为指示UE2正在振铃。
步骤1.7：被叫用户摘机，可以理解为UE2接通电话。
步骤1.8：GW2向GW1发送确认消息(200OK)，所述确认消息配置 为指示语音通信通道连接成功的应答。
步骤1.9：GW1收到所述200OK消息后，通知UE1停止播放回铃音。
步骤1.10：GW1向GW2发送正确应答指示(ACK)消息，所述ACK消息配置为通知所述GW1已接收到所述200OK消息。
步骤1.11：UE1和UE2之间的语音通信通道建立，所述UE1和所述UE2之间可以进行语音通话。
步骤2.1：当用户选择CSD业务时，UE1发送CSD信号音(CSD tone)至GW1。
步骤2.2：GW1通过自身的检测单元分析所述CSD tone，确定所述CSD tone表征CSD业务开始事件后，准备切换到CSD状态。
步骤2.3：GW1通过IP网络向GW2发送SIP请求消息(re-INVITE)，所述请求消息(re-INVITE)配置为发起CSD流的能力协商和CSD通道的建立请求，所述请求消息(re-INVITE)携带有表征CSD能力描述信息的SDP offer。
步骤2.4：GW2根据收到的所述SIP的请求消息(re-INVITE)中的SDP offer完成CSD能力协商后，发送确认消息(200OK)，所述确认消息中携带有表征完成CSD能力协商的SDP Answer，完成所述GW2和GW1之间的CSD能力协商。
步骤2.5：GW1收到所述200OK消息后，通知UE1进行CSD tone的播放，所述CSD tone配置为指示CSD业务切换成功。
步骤2.6：GW1向GW2发送正确应答指示(ACK)消息，所述ACK消息配置为通知所述GW1已收到了所述200OK消息。
步骤2.7：GW1发送所述ACK后，所述UE1和所述UE2之间的CSD通道建立，可以进行CSD业务。
步骤3.1：当CSD业务结束时，CSD终端UE1发送CSD tone给GW1。
步骤3.2：GW1通过自身的检测单元分析所述CSD tone，确定所述CSD tone表征CSD业务结束事件后，准备切换到语音通信状态。
步骤3.3：GW1通过IP网络向GW2发送SIP请求消息(re-INVITE)，所述请求消息(re-INVITE)配置为发起语音流的能力协商和语音通信通道的建立请求，所述请求消息(re-INVITE)携带有表征语音能力描述信息的SDP offer。
步骤3.4：当GW2根据收到的所述SIP的请求消息(re-INVITE)中的SDP offer完成语音能力协商后，发送确认消息(200OK)，所述确认消息携带有表征完成语音能力协商的SDP Answer，完成所述GW2和GW1的CSD能力协商。
步骤3.5：GW1向GW2发送正确应答指示(ACK)消息，所述ACK消息配置为通知所述GW1已收到了所述200OK消息。
步骤3.6：UE1和UE2之间的语音通道重新建立，开始进入通话状态。
步骤4.1：当UE1想结束语音业务时，进行挂机操作。
步骤4.2：GW1向GW2发送结束(BYE)请求，请求释放资源。
步骤4.3：GW2收到所述BYE请求后，将通知UE2播放忙音(busy tone)。
步骤4.4：同时，GW2向GW1发送确认消息(200OK)，所述确认消息表征已经成功释放资源。
步骤4.5：至此，UE1和UE2进入空闲(idle)状态，等待用户的下一次呼叫请求操作。
图5为本发明实施例中的状态切换的应用示意图；如图5所示，所述CPE中可设置状态机，所述状态机包括三个状态：空闲态、CSD状态和语音通信状态；其中，
所述空闲态：系统处于空闲状态；
所述语音通信状态：主被叫终端通过语音能力协商和应答响应，语音 通道已经成功建立，主被叫终端之间可以进行语音通话；
所述CSD状态：主被叫双方通过CSD能力协商和应答响应，CSD通道已经成功建立，主被叫终端之间可以进行CSD业务。
具体的，结合图4与图5，当从空闲态切换到语音通信状态时(状态转换关系如1所示)。当语音通信通道成功建立后，CPE将从空闲态切换到语音通信状态。所述从空闲态切换至语音通信状态实现过程可如图4中的步骤1.1至步骤1.11所示。
当从语音通信状态切换到空闲态时(状态转换关系如2所示)。当主被叫用户之间处于语音通信状态时，主被叫终端中任一终端进行了挂机操作，此时，CPE将从语音通信状态切换到空闲态。所述从语音通信状态切换到空闲态实现过程可如图4中的步骤4.1至步骤4.5所示。
当从语音通信状态切换到CSD状态的转换(状态转换关系如3所示)。当主被叫终端之间处于语音通信状态时，收到表征CSD开始事件的CSD Tone时，CPE发起状态切换，并通过主被叫终端之间的编码切换和CSD能力协商，切换到CSD状态。所述从语音通信状态切换到CSD状态实现过程可如图4中的步骤2.1至步骤2.7所示。
当从CSD状态切换到语音通信状态的切换(状态转换关系如4所示)。当主被叫终端处于CSD状态时，收到表征CSD结束事件的CSD Tone时，CPE将发起状态切换，并通过主被叫终端之间的语音能力协商，重新切换到语音通信状态。
当从CSD状态切换到空闲态的切换(状态转换关系如5所示)。当主被叫终端处于CSD状态时，主被叫终端中任一终端选择了挂机操作，则CPE将发送释放资源请求，切换到空闲态。所述从CSD状态切换到空闲态实现过程可参考图4中的步骤4.1至步骤4.5。
实施例四
本发明实施例还提供了一种CPE。图6为本发明实施例的无线客户终端设备的组成结构示意图；如图6所示，所述CPE包括：语音通信单元61、检测单元62和CSD通信单元63；其中，
所述语音通信单元61，配置为基于会话初始协议SIP建立第一CSD终端和第二CSD终端之间的语音通信通道；
所述检测单元62，配置为基于所述语音通信单元61建立的语音通信通道，获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；
所述CSD通信单元63，配置为基于所述检测单元62识别出的所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
其中，所述语音通信单元61，配置为接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求(INVITE)消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
其中，所述CSD通信单元63，配置为向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述re-INVITE携带有表征所述CSD业务的CSD能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的CSD能力协商完成。
具体的，本实施例所述CPE具体为与第一CSD终端连接的设备，也可以理解为第一CSD终端为主叫终端，所述CPE为与主叫终端连接的设备。
本领域技术人员应当理解，本发明实施例的CPE中各处理单元的功能，可参照前述支持CSD业务的无线通信方法的相关描述而理解，本发明实施例的CPE中各处理单元，可通过实现本发明实施例所述的功能的模拟电路而实现，也可以通过执行本发明实施例所述的功能的软件在智能终端上的 运行而实现。
实施例七
本发明实施例还提供了一种CPE；基于实施例六并如图6所示，所述CSD通信单元63，还配置为获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于所述SIP使能所述语音通信单元61，切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道；或者，释放所述第一CSD终端和所述第二CSD之间的资源。
其中，所述CSD通信单元63，配置为向所述第二CSD终端归属的CPE发送SIP请求消息(re-INVITE)；所述re-INVITE携带有表征语音能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD终端之间的语音能力协商完成。
本领域技术人员应当理解，本发明实施例的CPE中各处理单元的功能，可参照前述支持CSD的无线通信方法的相关描述而理解，本发明实施例的CPE中各处理单元，可通过实现本发明实施例所述的功能的模拟电路而实现，也可以通过执行本发明实施例所述的功能的软件在智能终端上的运行而实现。
在本发明实施例四至实施例五中，所述CPE中的检测单元62，在实际应用中均可由所述CPE中的中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Signal Processor)或可编程门阵列(FPGA，Field－Programmable Gate Array)实现；所述CPE中的语音通信单元61和CSD通信单元63，在实际应用中，均可由所述CPE中的收发器或收发天线实现。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法， 可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本发明上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算 机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例通过SIP以及对CSD信号音的分析识别，扩展了CPE的功能，在支持LTE网络的CPE上实现了CSD业务，使用户无需改变在传统的有线网络下使用CSD业务的使用习惯，大大提升了用户的满意度和操作体验。

Claims (11)

  1. 一种无线通信方法，所述方法包括：
    无线客户端设备CPE基于会话初始协议SIP建立第一电路交换数据CSD终端和第二CSD终端之间的语音通信通道；
    基于所述语音通信通道，所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；
    基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
  2. 根据权利要求1所述的方法，其中，所述CPE基于SIP建立第一CSD终端和第二CSD终端之间的语音通信通道，包括：
    所述CPE接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求INVITE消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
  3. 根据权利要求1所述的方法，其中，所述基于所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，包括：
    所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息re-INVITE；所述请求消息携带有表征所述CSD业务的CSD能力描述信息的SDP offer；
    所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的CSD能力协商完成。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：所述CPE获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于所述SIP切换所述第一CSD终端和所述第二CSD之间的 CSD业务通道为语音通信通道；或者，释放所述第一CSD终端和所述第二CSD终端之间的资源。
  5. 根据权利要求4所述的方法，其中，所述基于所述SIP切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道，包括：
    所述CPE向所述第二CSD终端归属的CPE发送SIP请求消息re-INVITE；所述请求消息携带有表征语音能力描述信息的SDP offer；
    所述CPE接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的语音能力协商完成。
  6. 一种无线客户端设备CPE，所述CPE包括：语音通信单元、检测单元和CSD通信单元；其中，
    所述语音通信单元，配置为基于会话初始协议SIP建立第一CSD终端和第二CSD终端之间的语音通信通道；
    所述检测单元，配置为基于所述语音通信单元建立的语音通信通道，获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征的CSD业务；
    所述CSD通信单元，配置为基于所述检测单元识别出的所述CSD业务并基于所述SIP发起所述第一CSD终端和所述第二CSD之间的能力协商，建立所述第一CSD终端和所述第二CSD之间的CSD业务通道。
  7. 根据权利要求6所述的CPE，其中，所述语音通信单元，配置为接收到第一CSD终端的语音呼叫后，向所述第二CSD终端归属的CPE发送SIP的请求INVITE消息；所述请求消息携带有表征语音能力描述信息的SDP offer。
  8. 根据权利要求6所述的CPE，其中，所述CSD通信单元，配置为向所述第二CSD终端归属的CPE发送SIP请求消息re-INVITE；所述请求 消息携带有表征所述CSD业务的CSD能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD之间的CSD能力协商完成。
  9. 根据权利要求6所述的CPE，其中，所述CSD通信单元，还配置为获取所述第一CSD终端的CSD信号音，分析识别所述CSD信号音表征CSD业务结束时，基于所述SIP使能所述语音通信单元，切换所述第一CSD终端和所述第二CSD之间的CSD业务通道为语音通信通道；或者，释放所述第一CSD终端和所述第二CSD之间的资源。
  10. 根据权利要求9所述的CPE，其中，所述CSD通信单元，配置为向所述第二CSD终端归属的CPE发送SIP请求消息re-INVITE；所述请求消息携带有表征语音能力描述信息的SDP offer；接收到所述第二CSD终端归属的CPE发送的确认消息，所述确认消息携带有SDP Answer；所述确认消息配置为指示所述第一CSD终端和所述第二CSD终端之间的语音能力协商完成。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至5任一项所述的无线通信方法。
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