WO2018103411A1 - 通讯方法、装置及系统 - Google Patents
通讯方法、装置及系统 Download PDFInfo
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- WO2018103411A1 WO2018103411A1 PCT/CN2017/102740 CN2017102740W WO2018103411A1 WO 2018103411 A1 WO2018103411 A1 WO 2018103411A1 CN 2017102740 W CN2017102740 W CN 2017102740W WO 2018103411 A1 WO2018103411 A1 WO 2018103411A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
Definitions
- the present invention relates to the field of communications, and in particular, to a communication method, apparatus and system.
- the embodiment of the invention provides a communication method, device and system for solving the following problems in the prior art: when the user does not want to use his mobile terminal to place a call, and there is no other mobile terminal around, the user cannot contact the mobile terminal. The user who wants to call has a lower user experience.
- the present invention provides a communication method, including: a first terminal establishes a connection with a second terminal by using a D2D (Device-to-Device Communication) technology; The second terminal sends a call request message, where the call request message is used to request the second terminal to issue a call request.
- D2D Device-to-Device Communication
- the first terminal establishes a connection with the second terminal by using the D2D technology, where: the first terminal sends device query information; the first terminal receives device feedback information from each terminal, where the terminal For the terminal supporting the D2D technology within a predetermined distance range, the device feedback information carries at least one of the following parameters: a signal strength of the terminal, a network standard of the terminal; and the first terminal receives the One terminal of the device feedback information selects one terminal as the second terminal, and establishes a connection with the second terminal.
- the first terminal receives the feedback information of the device according to a predetermined rule. Determining, by the first terminal, a terminal as the second terminal, the first terminal acquiring a preset priority weight of each parameter in the device feedback information fed back by each terminal; the first terminal according to the preset parameter The scoring rule determines a scoring value of each parameter in the device feedback information fed back by each terminal; the first terminal selects the second terminal according to the preset priority weight of each parameter and the scoring value.
- the step of establishing a connection with the second terminal includes: sending, by the first terminal, a connection establishment request message to the second terminal; The connection fed back by the second terminal establishes a response message and establishes a connection with the second terminal.
- the call request message carries: identifier information of the first terminal.
- the sending, by the first terminal, the call request message to the second terminal, the method includes: adding the identifier information to the second terminal, where the identifier information is included in the call request message, where the identifier information includes: a location Information and / or identity information.
- the present invention further provides a communication method, including: establishing a connection with a first terminal by using a device-to-device D2D technology; receiving a call request message from the first terminal, and issuing a call according to the call request message, The call request message is used to request the second terminal to issue a call request.
- establishing a connection with the first terminal by using the device-to-device D2D technology including: receiving a connection establishment request message from the first terminal; sending a connection establishment response message to the first terminal, and the first The terminal establishes a connection.
- the method further includes: sending the call parameter information to the third terminal or the server, where the call parameter information includes: at least: identifier information of the first terminal;
- the third terminal or the server is a device to be answered of the call.
- the sending the call parameter information to the third terminal or the server includes: the LTE network enabled state is a first enabled state, and the identifier information is added to the first enabled parameter and sent to the third terminal.
- the server the LTE network enabled state is a second enabled state, and the identifier information is added to the second enabled parameter to be sent to the third terminal or the server.
- the present invention further provides a communication method, which is applied to a second terminal, including: establishing a D2D connection with the first terminal, and receiving a call request message; displaying a visual prompt of the call request message on the screen, wherein The visual cue includes text and/or an image, and the call request message is used to request the second terminal to issue a call request.
- the method further includes: receiving, by the visual prompt of the call request message, a call request confirmation message, acquiring the identifier information of the first terminal, and Displaying the visual prompt of the identification information; the visual prompt of the identification information receives a conversion request, converts the identification information into text information to be sent, and sends the text information to the first when the call is placed Three terminals or servers.
- the method further includes: displaying a visual prompt of the D2D connection request from the first terminal on the screen; and receiving the connection by the visual prompt of the D2D connection request Confirming the message, establishing a D2D connection with the first terminal; displaying a visual prompt for successful D2D connection on the screen.
- the present invention further provides a communication device, including: a first connection module, configured to establish a connection with a second terminal by using a device-to-device D2D technology; and a first sending module configured to send a call to the second terminal a request message, wherein the call request message is used to request the second terminal to issue a call request.
- a communication device including: a first connection module, configured to establish a connection with a second terminal by using a device-to-device D2D technology; and a first sending module configured to send a call to the second terminal a request message, wherein the call request message is used to request the second terminal to issue a call request.
- the first connection module includes: a sending unit configured to send device query information, and a receiving unit configured to receive device feedback information from each terminal, wherein the terminal supports the device within a predetermined distance range
- the terminal of the D2D technology the device feedback information carries at least one of the following parameters: a signal strength of the terminal, a network standard of the terminal, and a connection unit configured to select one of the terminals that receive the feedback information of the device according to a predetermined rule.
- the terminal acts as the second terminal and establishes a connection with the second terminal.
- the connecting unit is specifically configured to: obtain a preset priority weight of each parameter in the device feedback information fed back by each terminal; and determine the device feedback information fed back by each terminal according to a preset parameter scoring rule. a score value of each parameter; selecting the second terminal according to the preset priority weight of each parameter and the score value.
- the present invention provides a communication apparatus, including: a second connection module configured to establish a connection with a first terminal by a device-to-device D2D technology; and a call module configured to receive a call request from the first terminal And sending a call according to the call request message, wherein the call request message is used to request the second terminal to make a call request.
- the method further includes: a second sending module, configured to send the call parameter information to the third terminal or the server, where the call parameter information includes: at least: identifier information of the first terminal; Or the server is a device to be answered of the call.
- a second sending module configured to send the call parameter information to the third terminal or the server, where the call parameter information includes: at least: identifier information of the first terminal; Or the server is a device to be answered of the call.
- the second sending module is specifically configured to: the LTE network enabled state is a first enabled state, and the identifier information is added to the first enabled parameter and sent to the third terminal or the The server; the LTE network enabled state is a second enabled state, and the identifier information is added to the second enabled parameter to be sent to the third terminal or the server.
- the present invention further provides a communication system, including: a first terminal and a second terminal; wherein the first terminal establishes a connection with the second terminal by using a device-to-device D2D technology; and The terminal sends a call request message, where the call request message is used to request the second terminal to send a call request; and the second terminal sends a call according to the call request message.
- a storage medium comprising a stored program, wherein the program is executed to perform the method of any of the above.
- a processor for running a program wherein the program is executed to perform the method of any of the above.
- the invention establishes a connection between two terminals through the D2D technology. After the two terminals establish a connection, the first terminal can send a call request message to the second terminal, requesting the second terminal to make a call request instead of the first terminal, and dial the corresponding call. Telephone, this method can make a call without using its own terminal. In the implementation, even if the terminal is in the absence of a network signal, there is no need to panic. D2D technology can be used to request other terminals to help realize the call.
- the second terminal can also complete the event of making an emergency call, and the user experience is high, which solves the following problems of the prior art: when the user does not want to use his mobile terminal to make a call, the body When there are no other mobile terminals, the user cannot contact the user who wants to call, and the user experience is low.
- FIG. 1 is a flow chart of a communication method in a first embodiment of the present invention
- FIG. 2 is a flow chart of a communication method in a second embodiment of the present invention.
- Figure 3 is a flow chart showing a communication method in a third embodiment of the present invention.
- Figure 5 is a schematic structural view of a communication device in a fourth embodiment of the present invention.
- Figure 6 is a schematic structural view of a communication device in a fifth embodiment of the present invention.
- FIG. 7 is a flowchart of a method for a mobile terminal to place a call in a seventh embodiment of the present invention.
- FIG. 8 is a flow chart of D2D interaction between terminals in the seventh embodiment of the present invention.
- a first embodiment of the present invention provides a communication method.
- the flow of the method is as shown in FIG. 1, and includes steps S102 to S104:
- the first terminal establishes a connection with the second terminal by using a D2D technology.
- the first terminal sends a call request message to the second terminal, where the call request message is used to request the second terminal to send a call request.
- the call sent by the second terminal is sent by the first terminal to request it to replace the first terminal.
- the embodiment of the present invention establishes a connection between two terminals through D2D technology, and is built in two terminals.
- the first terminal may send a call request message to the second terminal, requesting the second terminal to make a call request instead of the first terminal, and dial the corresponding call, and the method may make a call without using the own terminal.
- D2D technology can be used to request other terminals to help realize the call.
- the second terminal can also complete the event of making an emergency call. High, solves the following problems in the prior art: when the user does not want to use his mobile terminal to place a call, and there is no other mobile terminal around, the user cannot contact the user he wants to call, and the user experience is low.
- the above method can be used when the user is in an emergency situation, for example, the user is trapped in a position where there is no signal, and of course, it can also be used for call forwarding in a normal situation.
- the first terminal In the process of establishing a connection between the first terminal and the second terminal through the D2D technology, the first terminal needs to detect whether there is a terminal supporting the D2D technology within a predetermined distance range.
- the predetermined distance range refers to a distance capable of realizing D2D communication.
- a predetermined distance may be established.
- the range is set to 200 meters.
- the first terminal transmits the device query information. Since the device query information sent by the first terminal is in a one-to-many manner, the device query information may be sent by multicast or broadcast. Of course, the first terminal may also not detect whether there is a terminal supporting the D2D technology within a predetermined distance range, and directly send the device query information.
- the device feedback information is sent to the first terminal, where the device feedback information carries at least one of the following parameters: the signal strength of the terminal, and the network of the terminal.
- the first terminal may select one terminal as the second terminal from the terminal that receives the device feedback information according to a predetermined rule, and establish a connection with the second terminal.
- the terminal that can serve as the second terminal can be selected by setting a priority.
- the first terminal acquires a preset of each parameter in the device feedback information fed back by each terminal. Priority weight; the first terminal determines the score value of each parameter in the device feedback information fed back by each terminal according to the preset parameter scoring rule; the first terminal selects the second terminal according to the preset priority weight and the scoring value of each parameter, for example
- the first terminal determines the priority of each terminal according to the preset priority weight and the score value of each parameter; the first terminal selects the terminal with the highest priority from all the priorities as the second terminal; If the terminal with the highest priority does not accept the D2D connection request of the first terminal, the terminal with the second highest priority can be used as the second terminal, and the D2D connection is requested again.
- the preset parameter score of this embodiment may be presented in a tabular form, which indicates the corresponding score value in different situations in which each parameter is good or bad.
- the signal strength is -60 dBm to -80 dBm corresponding to 100 points, and the signal strength is It is 90 points for -80dBm to -100dBm, and the signal strength is -100dBm or less for 80 points.
- the signal strength of each terminal and the preset priority weight of the two parameters of the network standard are both 60% and 40%, the signal strength takes up more weights, and the network system takes a smaller priority weight. some. If the signal strength of the terminal A is -70 dBm and the network standard is an LTE network, the total score value is determined to be 90 points according to the score values corresponding to the two parameters. However, the terminal B calculates 80 points, and the terminal A is the priority. The higher terminal determines that terminal A is the second terminal.
- the second terminal may be selected only by referring to the preset priority weight or the rating value.
- the normal D2D is established, that is, the first terminal sends a connection establishment request message to the second terminal, and when receiving the connection establishment response message fed back by the second terminal, A terminal establishes a connection with the second terminal.
- the call request message may carry the identification information of the first terminal, so that the second terminal can let the other terminal know that the second terminal is a generation operation terminal when the other terminal makes a call, that is, the call is The first terminal side sends out.
- the identifier information may be added to the call request message and sent to the second terminal, where the identifier information includes location information, identity information, and the like.
- the first terminal Since the first terminal needs to send its location information, it is preferred to pass the D2D at the first terminal. After the technology establishes a connection with the second terminal, the first terminal may acquire the location information of the first terminal by using a GPS technology. Of course, since D2D communication is established between the two terminals, it is also possible that the second terminal triggers its own positioning, and then calculates the location of the first terminal through D2D.
- a communication method is provided in the second implementation of the present invention.
- the flow of the method is as shown in FIG. 2, and includes steps S202 to S204:
- S204 Receive a call request message from the first terminal, and send a call according to the call request message, where the call request message is used to request the second terminal to send a call request.
- the communication method in this embodiment is an execution process of the second terminal side that receives the first terminal call request message, and needs to receive a connection establishment request from the first terminal in the process of establishing a connection between the second terminal and the first terminal by using the D2D technology.
- the message may be popped up on the interface of the second terminal to query whether the second terminal accepts the request. If the request is received, the connection establishment response message is sent to the first terminal, and a connection is established with the first terminal.
- the second terminal may send the call parameter information to the third terminal or the server as the device to be answered, where the call parameter information includes at least: identifier information of the first terminal, and the identifier information may be The location information that identifies the geographic location of the first terminal may also be the identity information that identifies the first terminal phone number.
- the manner of sending the identification information is determined according to the enabled state. If the LTE network enabled state is the first enabled state, the identification information is added to the first enabled parameter and sent to the third terminal or server. The LTE network enabled state is the second enabled state, and the identification information is added to the second enabled parameter and sent to the third terminal or the server.
- the first enabled state may be a VOLTE state
- the first enabling parameter is an Invite message
- the second enabled state may be a VOLTE state
- the second enabling parameter is a Setup message. Therefore, when the calling terminal is in the LTE network and supports VOLTE, the identification information may be attached to the Invite message and sent to the device to be answered. If the terminal is in the LTE network and does not support VOLTE, the identification information may be attached to the device to be answered by being attached to the Setup message.
- the second terminal may be in the third enabled state, that is, in the non-LTE network, and the second terminal may still adopt the second enabling parameter, and the second terminal may still use the second enabled state.
- the identification information is sent, that is, the identification information is directly added to the second enable parameter and sent to the third terminal or the server.
- a third embodiment of the present invention provides a communication method.
- the process of the method is shown in FIG. 3.
- the method is a process of changing a second terminal screen interface, and includes steps S302 to S304:
- the first terminal and the second terminal may have established a D2D connection before, and there is memory between the two terminals. Similar to connecting to the WIFI network, the first terminal and the second terminal may be directly established at this time. D2D connection between. After the connection is established, since the first terminal wants the second terminal to help the user to make a call, the second terminal needs to send a call request message to the second terminal, and the second terminal presents a more user-friendly visual prompt on the screen, for example, “there is a The phone requests a call from your mobile phone.”
- the second terminal can be made aware that other terminals request to make a call on behalf of the terminal, and the implementation process is more user-friendly.
- the visual prompt of the call request message receives the call request confirmation message, acquires the identification information of the first terminal, and displays a visual prompt of the identification information on the screen, where the user triggers
- the process of visually prompting the call request message may be to trigger a confirmation button attached to the visual prompt, or may be to obtain the identification information by directly clicking the visual prompt of the call request message; the visual prompt of the identification information receives the conversion request And converting the identification information into text information to be sent, and sending the text information to the third terminal or the server when the call is placed.
- the second terminal that helps the first terminal to make a call may be a friend of the first terminal user, or may be a person that the first terminal user does not know at all.
- the first terminal user can use the D2D technology to let the second terminal user help him to place a call.
- the location information of the terminal is less important than the identity information, and only the identity information of the first terminal can be obtained.
- the type of the identifier information of the first terminal may be selected by the user of the first terminal, or may be selected by the user of the second terminal, which is not limited herein. In this way, when the user does not want to use his mobile phone or has no way to use his mobile phone to make a call, the user's mobile phone can help the user to make a call, and the user experience is better.
- the D2D can be established with the second terminal by the above method. connection.
- the two terminals Since the first terminal user and the second terminal user do not know each other, the two terminals have never established a D2D connection before, so before the visual prompt of the call request message is displayed on the screen, it will be on the screen first.
- the location information of the first terminal is particularly important. If the first terminal cannot be located, the second terminal can open the GPS location to obtain its own location information, and then use D2D technology and the first The location information of the second terminal calculates the location information of the first terminal, and obtains the identity information of the first terminal to obtain all the identifier information of the first terminal. Of course, if the first terminal can perform positioning, the location information is sent to the first terminal after being located.
- the second terminal may be, when the two terminals perform the screen interface setting, the two terminals may interact to determine who obtains the identification information of the first terminal.
- the call can be sent to the device to be answered.
- the call can be sent to the ordinary third terminal, and the server of the emergency or alarm system is also called, and the server is connected by the server. To pick up the call.
- the present embodiment further provides another communication method, which is applied to the third terminal or the server side, and is a presentation state of the third terminal or the server side interface, and the flow thereof is as shown in FIG. 4, including steps S402 to S404. :
- S404 Receive text information from the second terminal, and display a prompt box of the text information on the screen, where the text information includes at least: identifier information of the first terminal converted into text. If the third terminal or the server picks up the call initiated by the second terminal when the S402 is implemented, the process of executing S404 can make the third terminal or the server more clearly determine that the call is just an incoming call, and the call subject is not the second terminal; When the third terminal or the server does not pick up the call initiated by the second terminal, the process of sending the text message to the third terminal or the server may let the third terminal or the server know which terminal wants to make a call, so that A clearer callback or rescue, the user experience is better.
- a fourth embodiment of the present invention provides a communication device, which may be disposed in a first terminal.
- the structure of the device is as shown in FIG. 5, and includes: a first connection module 10 configured to pass D2D technology and a second The terminal establishes a connection.
- the first sending module 20 is configured to send a call request message to the second terminal, where the call request message is used to request the second terminal to send a call request.
- the foregoing first connection module 10 may specifically include: a sending unit, configured to send a device to check
- the receiving unit is configured to receive device feedback information from each terminal, wherein the terminal is a terminal that supports the D2D technology within a predetermined distance range, and the device feedback information carries at least one of the following parameters: a signal of the terminal Intensity, the network standard of the terminal; the connecting unit is configured to select one terminal as the second terminal from the terminal receiving the feedback information of the device according to a predetermined rule, and establish a connection with the second terminal.
- the foregoing connecting unit may be further configured to: obtain a preset priority weight of each parameter in the device feedback information fed back by each terminal; and determine a score value of each parameter in the device feedback information fed back by each terminal according to the preset parameter scoring rule; The second terminal is selected according to the preset priority weight and the score value of each parameter.
- the priority of each terminal may be determined according to preset priority weights and score values of the respective parameters; and the terminal with the highest priority is selected as the second terminal from all the priorities.
- the communication device may further include a positioning module coupled to the first connection module 10 and the first sending module 20, and configured to acquire location information of the first terminal by using a global positioning system (GPS) technology.
- a positioning module coupled to the first connection module 10 and the first sending module 20, and configured to acquire location information of the first terminal by using a global positioning system (GPS) technology.
- GPS global positioning system
- a fifth embodiment of the present invention provides a communication device, which can be disposed in a second terminal, and has a structure as shown in FIG. 6.
- the second connection module 30 is configured to pass the device-to-device D2D technology.
- a terminal establishes a connection; the calling module 40 is configured to receive a call request message from the first terminal, and issue a call according to the call request message, wherein the call request message is used to request the second terminal to issue a call request.
- the communication device may further include a second sending module, configured to send the call parameter information to the third terminal or the server, where the call parameter information includes at least: identifier information of the first terminal, and the third terminal or the server is to be answered by the call. device.
- the second sending module 30 is specifically configured to enable the LTE network to be in the first enabled state, and the identification information is added to the first enabled parameter and sent to the third terminal or the server; the LTE network enabled state is The second enabled state is sent to the third terminal or server by attaching the identification information to the second enabled parameter.
- a sixth embodiment of the present invention provides a communication system, including: a first terminal and a second terminal; wherein, the first terminal establishes a connection with the second terminal by using the device-to-device D2D technology; and Sending a call request message, wherein the call request message is used to request the second terminal to issue a call request; and the second terminal sends a call according to the call request message.
- the first terminal may include the communication device in the fourth embodiment, and the second terminal may include the communication device in the fifth embodiment, and details are not described herein again.
- a seventh embodiment of the present invention provides a method for a mobile terminal to place a call.
- the flow of the method is as shown in FIG. 7, and includes steps S701 to S706.
- a terminal A supporting D2D function makes an emergency call, and terminal A determines whether there is a network service at present. If there is a service, execute S702, otherwise, execute S703.
- the terminal A starts the D2D communication mode and detects whether there are D2D terminals suitable for pairing and having network services.
- the terminal A is paired with the terminal B that meets the requirements, and the location information is calculated and located.
- the terminal A sends its own call request, identity information (such as IMSI, local number) and location information to the terminal B.
- identity information such as IMSI, local number
- the terminal B dials the emergency phone by using its own network service according to the received message.
- a fifth embodiment of the present invention provides a mobile terminal that supports D2D communication, and can perform an emergency call by using a D2D function without a network signal.
- the mobile terminal provided in this embodiment and the mobile terminal provided in the foregoing embodiment are different in naming, but can implement the same function.
- the mobile terminal includes:
- the signal measurement module measures the current signal of the terminal; the D2D decision module, the terminal selects an optimal D2D terminal for pairing; the D2D communication module, and the communication service between the D2D terminals; Position positioning module, terminal location calculation and positioning; call management module, terminal normal voice service.
- the interaction process between the mobile terminal and another D2D mobile terminal for which an emergency call is made includes the following process:
- terminal A When terminal A makes an emergency call, it first measures the current received signal condition through the signal measurement module to determine whether there is a network signal. If there is a signal (even if it is weak), a normal emergency call flow is initiated through the call management module. Otherwise execute (2).
- Terminal A uses the D2D communication module to detect whether there is a suitable D2D terminal around the search, and selects the optimal terminal for pairing through the D2D decision module. Since this process is relatively complicated, it is described in detail by means of a sub-flowchart, as shown in FIG. 8, including the following process:
- the terminal A sends a capability query message to the already paired terminal to receive the status of the pairable terminal B.
- the decision module performs sorting according to a certain rule, for example, selecting a terminal (for example, terminal B) that is optimal (such as a good signal and a high standard).
- the process of sending a multicast message is mainly based on a D2D device discovery process of a direct air interface: the cellular network reserves a part of resources for D2D discovery, specifically for transmitting and detecting D2D discovery signals, and performs cell-specific public configuration through system broadcast messages. Information informs all branches in the community A terminal that has D2D discovery capabilities.
- the terminal A firstly transmits the discovery signal according to the common configuration of the cell, randomly or purposefully selecting the sequence format of the discovery signal, the time-frequency resource location, the MCS, and the initial power, and discovers that the signal is a sequence and a message.
- the mixed form for example, the frame prefix adopts a sequence-based pilot, and the subsequent message carries the information, wherein the information message carries the capability query message of the terminal A.
- the information according to the content of the information to make a response (whether there is a signal, signal strength, network standard, etc.), terminal A according to the received information according to a certain sorting rule, finally select the optimal terminal B suitable for pairing.
- the rules for ranking the decision module can be determined according to the two dimensions of the network standard and the signal strength, each dimension is given a certain score, and finally the scores of the two dimensions are added, so that the score can be selected. High is the optimal terminal. Dimensions and score definitions can be as shown in Table 1 below.
- UE1 4G network, -80dBm
- UE2 4G network, -90dBm
- UE3 3G network, -70dBm
- UE4 3G network, -76dBm.
- UE3 is an optimal pairing terminal.
- terminal A calculates its own location through the location service module.
- the D2D communication module sends a Position Location Request message to the location service module to trigger the GPS positioning service, and the location positioning module calculates the satellite data according to the received satellite data.
- the location information of itself for example: longitude, latitude (205.395583333332, 57.9323888888888), and then added to the positional response message (Position Location Response Message) is fed back to the D2D communication module.
- the Position Location request and Respone message structure are defined as shown in Table 2 and Table 3.
- the terminal A transmits the emergency call request message (Emergency Call Request Message) and the identity information (such as the IMSI, the local number) of the mobile terminal A, and the location information is transmitted to the terminal B through the D2D communication module.
- the structure of the Emergency Call Information Request message is defined as shown in Table 4 below.
- the terminal B After receiving the emergency call request of the terminal A through the D2D communication module, the terminal B responds to the emergency call response message (Emergency Call Response Message) to inform the terminal A whether an emergency call can be made. If not, you need to give a specific reason. Terminal A will send the emergency call request message after completing the supplement according to the specific reasons until it succeeds.
- the structure of the Emergency Call Response Message is defined as shown in Table 5 below.
- the terminal B After receiving the final request message from the terminal A, the terminal B displays the prompt information of the terminal A for emergency help.
- the information includes but is not limited to: the phone number of the terminal A, and the location of the terminal A.
- the information longitude, latitude
- the emergency number Dial Number
- the corresponding friendly prompts such as "the terminal A user (Phone Number) encountered difficulties, please provide help" and so on.
- the user of the terminal B can directly dial the call for help of the terminal A through the call management module of the terminal B, thereby helping the terminal A to complete the emergency call.
- the information that terminal B can carry when making an emergency call is: the identity of terminal A (such as IMSI, local number), location information, identity information of terminal B (such as IMSI, local number), so that the emergency call can be notified to the network. It is the terminal A expects to call, and the network can also know the location information of the terminal A, thereby providing assistance for the rescue.
- the terminal B can make the following definitions in the signaling interaction between the emergency call and the network: the terminal B can carry the identity information of the terminal A (such as IMSI, local number), location information and own identity information, so as to clearly tell the network details of the emergency call (such as local or proxy calls, and their respective phone numbers, etc.), the network will this information Feedback to the emergency call platform, the call platform can actively contact the corresponding end user for rescue after the service is restored.
- the identity information of the terminal A such as IMSI, local number
- location information and own identity information so as to clearly tell the network details of the emergency call (such as local or proxy calls, and their respective phone numbers, etc.)
- the network will this information Feedback to the emergency call platform, the call platform can actively contact the corresponding end user for rescue after the service is restored.
- the terminal B When the terminal B initiates an emergency call and carries the emergency telephone information of the terminal A, the terminal B is divided into different processes and carrying rules according to the network condition of the terminal B.
- the identity and location information of the terminal A can be attached to the Invite message (standard message defined by the 3GPP), and its structure is extended, as shown in Table 6 below.
- the identity and location information of the terminal A can be attached to the Setup Message (standard message defined by 3GPP), and its structure is extended and defined. As shown in Table 7 below.
- the terminal A initiates the emergency call service by using the D2D communication technology with other signaled pairing terminals B without signal.
- Terminal A places terminal A in a place where there is no network signal, and makes an emergency call (such as 110, 120, etc.).
- Terminal A will first check whether there are already paired D2D terminals around, and the terminal must have a network signal.
- terminal A sends emergency call information and its own location information to the terminal B.
- the terminal B dials the emergency telephone of the terminal A by using its own network service, and carries the identity and location of the terminal A, so that the network can be informed.
- the emergency call is the call that terminal A expects, and the network can also know the location information of terminal A, thereby providing assistance for the rescue. This situation usually occurs when the user is trapped in an elevator, an underground garage, a mountain without a signal, or the sea, and needs to be rescued by an emergency call.
- Embodiments of the present invention also provide a storage medium including a stored program, wherein the program described above executes the method of any of the above.
- the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
- ROM Read-Only Memory
- RAM Random Access Memory
- Embodiments of the present invention also provide a processor for running a program, wherein the program is executed to perform the steps of any of the above methods.
- a communication method, apparatus, and system provided by an embodiment of the present invention have the following beneficial effects: the method can make a call without using its own terminal, and when implemented, even if the terminal is in a situation without a network signal, There is no need to panic, D2D technology can be used to request other terminals to help realize the call. In the event of a dangerous situation, the event of making an emergency call can be completed through the second terminal, and the user experience is high, solving the following problems of the prior art: If you don't want to use your mobile terminal to make a call, and there are no other mobile terminals around, the user can't contact the user they want to call, and the user experience is low.
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Abstract
本发明实施例中公开了一种通讯方法、装置及系统，其中，该方法包括：第一终端通过D2D技术与第二终端建立连接；第一终端向第二终端发送通话请求消息，其中，通话请求消息用于请求第二终端发出呼叫请求。本发明通过D2D技术建立两个终端间的连接，在两个终端建立连接后，第一终端就可以向第二终端发送通话请求消息，以请求第二终端代替第一终端发出呼叫请求，拨打电话，该方法在实现时，可以借助D2D技术请求其他终端帮助实现呼叫，一旦遇到危险情况，也可以通过第二终端完成拨打紧急电话的事件，用户体验较高。
Description
本发明涉及通讯领域，特别是涉及一种通讯方法、装置及系统。
在用户使用移动终端呼叫其他用户时，会存在各种情况，例如，用户当前没有网络，进而无法通过自己的移动终端发出呼叫，或者，当用户自己的移动终端欠费，无法通过自己的移动终端发出呼叫，再或者，用户就是不想用自己的移动终端发出呼叫等。因此，当用户又不想用自己的移动终端发出呼叫，身边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低。
发明内容
本发明实施例提供一种通讯方法、装置及系统，用以解决现有技术的如下问题：当用户又不想用自己的移动终端发出呼叫，身边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低。
为解决上述技术问题，一方面，本发明提供一种通讯方法，包括：第一终端通过D2D(设备到设备，Device-to-Device Communication)技术与第二终端建立连接；所述第一终端向所述第二终端发送通话请求消息，其中，所述通话请求消息用于请求所述第二终端发出呼叫请求。
可选的，所述第一终端通过D2D技术与第二终端建立连接，包括：所述第一终端发送设备查询信息；所述第一终端接收来自各个终端的设备反馈信息，其中，所述终端为在预定距离范围内支持所述D2D技术的终端，所述设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式；所述第一终端按照预定规则从接收到所述设备反馈信息的终端中选择出一个终端作为所述第二终端，并与所述第二终端建立连接。
可选的，所述第一终端按照预定规则从接收到所述设备反馈信息的终
端中选择出一个终端作为所述第二终端，包括：所述第一终端获取每个终端反馈的所述设备反馈信息中各个参数的预设优先级权重；所述第一终端按照预设参数评分规则确定每个终端反馈的所述设备反馈信息中各个参数的评分值；所述第一终端根据各个参数的所述预设优先级权重和所述评分值选择所述第二终端。
可选的，在选择出所述第二终端之后，与所述第二终端建立连接的步骤，包括：所述第一终端向所述第二终端发送连接建立请求消息；所述第一终端接收所述第二终端反馈的连接建立应答消息，并与所述第二终端建立连接。
可选的，所述通话请求消息携带有：所述第一终端的标识信息。
可选的，所述第一终端向所述第二终端发送通话请求消息，包括：将所述标识信息附加在通话请求消息中发送至所述第二终端，其中，所述标识信息包括：位置信息和/或身份信息。
另一方面，本发明还提供一种通讯方法，包括：通过设备到设备D2D技术与第一终端建立连接；接收来自所述第一终端的通话请求消息，并根据所述通话请求消息发出呼叫，其中，所述通话请求消息用于请求第二终端发出呼叫请求。
可选的，通过设备到设备D2D技术与第一终端建立连接，包括：接收来自所述第一终端的连接建立请求消息；向所述第一终端发送连接建立应答消息，并与所述第一终端建立连接。
可选的，根据所述通话请求消息发出呼叫之后，还包括：将呼叫参数信息发送至第三终端或服务器，其中，所述呼叫参数信息至少包括：所述第一终端的标识信息；所述第三终端或所述服务器为呼叫的待应答设备。
可选的，将呼叫参数信息发送至第三终端或服务器，包括：LTE网络使能状态为第一使能状态，将所述标识信息附加在第一使能参数中发送至所述第三终端或所述服务器；LTE网络使能状态为第二使能状态，将所述标识信息附加在第二使能参数中发送至所述第三终端或所述服务器。
另一方面，本发明还提供一种通讯方法，应用于第二终端，包括：与第一终端建立D2D连接，并接收通话请求消息；在屏幕上显示所述通话请求消息的可视提示，其中，所述可视提示包括文字和/或图像，所述通话请求消息用于请求第二终端发出呼叫请求。
可选的，在屏幕上显示所述通话请求消息的可视提示之后，还包括：所述通话请求消息的可视提示接收通话请求确认消息，获取所述第一终端的标识信息，并在屏幕上显示所述标识信息的可视提示；所述标识信息的可视提示接收转换请求，将所述标识信息转换为待发送的文字信息，并在发出呼叫时，将所述文字信息发送至第三终端或服务器。
可选的，在屏幕上显示所述通话请求消息的可视提示之前，还包括：在屏幕上显示来自第一终端的D2D连接请求的可视提示；所述D2D连接请求的可视提示接收连接确认消息，与所述第一终端建立D2D连接；在屏幕上显示D2D连接成功的可视提示。
另一方面，本发明还提供一种通讯装置，包括：第一连接模块，设置为通过设备到设备D2D技术与第二终端建立连接；第一发送模块，设置为向所述第二终端发送通话请求消息，其中，所述通话请求消息用于请求所述第二终端发出呼叫请求。
可选的，所述第一连接模块包括：发送单元，设置为发送设备查询信息；接收单元，设置为接收来自各个终端的设备反馈信息，其中，所述终端为在预定距离范围内支持所述D2D技术的终端，所述设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式；连接单元，设置为按照预定规则从接收到所述设备反馈信息的终端中选择出一个终端作为所述第二终端，并与所述第二终端建立连接。
可选的，所述连接单元具体设置为：获取每个终端反馈的所述设备反馈信息中各个参数的预设优先级权重；按照预设参数评分规则确定每个终端反馈的所述设备反馈信息中各个参数的评分值；根据各个参数的所述预设优先级权重和所述评分值选择所述第二终端。
另一方面，本发明还提供一种通讯装置，包括：第二连接模块，设置为通过设备到设备D2D技术与第一终端建立连接；呼叫模块，设置为接收来自所述第一终端的通话请求消息，并根据所述通话请求消息发出呼叫，其中，所述通话请求消息用于请求第二终端发出呼叫请求。
可选的，还包括：第二发送模块，设置为将呼叫参数信息发送至第三终端或服务器，其中，所述呼叫参数信息至少包括：所述第一终端的标识信息；所述第三终端或所述服务器为呼叫的待应答设备。
可选的，所述第二发送模块，具体设置为：LTE网络使能状态为第一使能状态，将所述标识信息附加在第一使能参数中发送至所述第三终端或所述服务器；LTE网络使能状态为第二使能状态，将所述标识信息附加在第二使能参数中发送至所述第三终端或所述服务器。
另一方面，本发明还提供一种通讯系统，包括：第一终端和第二终端；其中，所述第一终端，通过设备到设备D2D技术与第二终端建立连接；并向所述第二终端发送通话请求消息，其中，所述通话请求消息用于请求所述第二终端发出呼叫请求；所述第二终端，根据所述通话请求消息发出呼叫。
根据本发明的又一个实施例，还提供了一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行上述任一项所述的方法。
根据本发明的又一个实施例，还提供了一种处理器，所述处理器用于运行程序，其中，所述程序运行时执行上述任一项所述的方法。
本发明通过D2D技术建立两个终端间的连接，在两个终端建立连接后，第一终端就可以向第二终端发送通话请求消息，以请求第二终端代替第一终端发出呼叫请求，拨打对应的电话，该方法可以在不使用自身终端的情况下拨打电话，在实现时，即使终端处于没有网络信号的情况，也无需惊慌，可以借助D2D技术请求其他终端帮助实现呼叫，一旦遇到危险情况，也可以通过第二终端完成拨打紧急电话的事件，用户体验较高，解决了现有技术的如下问题：当用户又不想用自己的移动终端发出呼叫，身
边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低。
图1是本发明第一实施例中通讯方法的流程图；
图2是本发明第二实施例中通讯方法的流程图；
图3是本发明第三实施例中一种通讯方法的流程图；
图4是本发明第三实施例中另一种通讯方法的流程图；
图5是本发明第四实施例中通讯装置的结构示意图；
图6是本发明第五实施例中通讯装置的结构示意图；
图7是本发明第七实施例中移动终端发出呼叫的方法的流程图；
图8是本发明第七实施例中终端间D2D交互流程图。
为了解决现有技术的如下问题：当用户又不想用自己的移动终端发出呼叫，身边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低；本发明提供了一种通讯方法、装置及系统，以下结合附图以及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不限定本发明。
本发明第一实施例提供了一种通讯方法，该方法的流程如图1所示，包括步骤S102至S104：
S102，第一终端通过D2D技术与第二终端建立连接。
S104，第一终端向第二终端发送通话请求消息，其中，通话请求消息用于请求第二终端发出呼叫请求。其中，第二终端发出的呼叫是第一终端请求其代替第一终端而发出的。
本发明实施例通过D2D技术建立两个终端间的连接，在两个终端建
立连接后，第一终端就可以向第二终端发送通话请求消息，以请求第二终端代替第一终端发出呼叫请求，拨打对应的电话，该方法可以在不使用自身终端的情况下拨打电话，在实现时，即使终端处于没有网络信号的情况，也无需惊慌，可以借助D2D技术请求其他终端帮助实现呼叫，一旦遇到危险情况，也可以通过第二终端完成拨打紧急电话的事件，用户体验较高，解决了现有技术的如下问题：当用户又不想用自己的移动终端发出呼叫，身边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低。
对于上述方法，其可以在用户处于紧急情况使用，例如，用户被困于没有信号的位置，当然，也可以用于普通情况下的呼叫转移。
在第一终端通过D2D技术与第二终端建立连接的过程中，第一终端需要检测在预定距离范围内是否存在支持D2D技术的终端。其中，该预定距离范围是指能够实现D2D通讯的一个距离，当支持D2D技术的两个终端之间的距离超过所述预定距离范围时，就没有办法再建立D2D连接，例如，可以将预定距离范围设置为200米。
在存在支持D2D技术的终端的情况下，第一终端发送设备查询信息。由于第一终端发送的设备查询信息是一对多的形式，因此，可以通过组播或广播方式来发送设备查询信息。当然，第一终端也可以不检测在预定距离范围内是否存在支持D2D技术的终端，而直接发送设备查询信息。
当处于预定距离范围内的多个第二终端接收到设备查询信息时，会向第一终端发送设备反馈信息，其中，设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式。在第一终端接收来自各个终端的设备反馈信息之后，就可以按照预定规则从接收到设备反馈信息的终端中选择出一个终端作为第二终端，并与第二终端建立连接。
在第一终端按照预定规则选择可以作为第二终端的终端时，可以通过设置优先级的方式来选择可以作为第二终端的终端。
例如，第一终端获取每个终端反馈的设备反馈信息中各个参数的预设
优先级权重；第一终端按照预设参数评分规则确定每个终端反馈的设备反馈信息中各个参数的评分值；第一终端根据各个参数的预设优先级权重和评分值选择第二终端，比如，第一终端根据各个参数的预设优先级权重和评分值确定每个终端的优先级；第一终端从所有优先级中选择优先级最高的终端作为第二终端；具体实现时，如果选择出优先级最高的终端没有接受第一终端的D2D连接请求，则可以将优先级次高的终端作为第二终端，再次请求建立D2D连接。该实施例的预设参数评分可以以表格形式呈现，其指示各个参数好或坏的不同情况下对应的评分值，以信号强度为例，信号强度为-60dBm至-80dBm对应100分，信号强度为-80dBm至-100dBm对应90分，信号强度为-100dBm以下对应80分。
实现时，如果每个终端的信号强度和网络制式两个参数的预设优先级权重都为60％和40％，则信号强度所占优先级权重比较多，网络制式所占优先级权重相对小一些。如果终端A的信号强度为-70dBm，网络制式为LTE网络，则根据两个参数对应的评分值确定其总评分值为90分，然而终端B计算出的是80分，则终端A为优先级较高的终端，就确定终端A为第二终端。
当然，根据用户关注的内容不同，可以仅参考预设优先级权重或评分值来选择第二终端。
可选的，与第二终端建立连接时，就是正常D2D建立的过程，即第一终端向第二终端发送连接建立请求消息，在接收到第二终端反馈的连接建立应答消息的情况下，第一终端与第二终端建立连接。
实现时，上述通话请求消息可以携带有第一终端的标识信息，这样，才可以让第二终端在向其他终端拨打电话时，让其他终端知道第二终端是一个代操作终端，即呼叫是由第一终端侧发出的。上述第一终端向第二终端发送通话请求消息时，可以将标识信息附加在通话请求消息中发送至第二终端，其中，标识信息包括位置信息、身份信息等。
由于第一终端需要发送其位置信息，因此，优选在第一终端通过D2D
技术与第二终端建立连接之后，第一终端可以通过GPS技术获取第一终端的位置信息。当然，由于两个终端之间建立了D2D通信，因此，也可以是第二终端触发自身的定位，然后通过D2D来计算第一终端的位置。
本发明第二实施里提供了一种通讯方法，该方法的流程如图2所示，包括步骤S202至S204：
S202，通过D2D技术与第一终端建立连接；
S204，接收来自第一终端的通话请求消息，并根据通话请求消息发出呼叫，其中，通话请求消息用于请求第二终端发出呼叫请求。
本实施例的通讯方法是接收第一终端通话请求消息的第二终端侧的执行过程，在第二终端通过D2D技术与第一终端建立连接的过程中，需要接收来自第一终端的连接建立请求消息，此时，第二终端的界面上可以弹出提示框，来询问第二终端是否接受该请求，如果接收该请求，则向第一终端发送连接建立应答消息，并与第一终端建立连接。
在根据通话请求消息发出呼叫之后，第二终端可以将呼叫参数信息发送至作为待应答设备的第三终端或服务器，其中，呼叫参数信息至少包括：第一终端的标识信息，该标识信息可以是标识第一终端地理位置的位置信息，也可以是标识第一终端电话号码的身份信息。
在将呼叫参数信息发送至第三终端或服务器的过程中，需要判断第二终端当前处于什么网络。对于LTE网络，则要根据其使能状态来确定标识信息的发送方式，如果LTE网络使能状态为第一使能状态，将标识信息附加在第一使能参数中发送至第三终端或服务器；LTE网络使能状态为第二使能状态，将标识信息附加在第二使能参数中发送至第三终端或服务器。
实现的过程中，第一使能状态可以是支持VOLTE状态，则第一使能参数为Invite消息，第二使能状态可以是不支持VOLTE状态，则第二使能参数为Setup消息。所以，在呼叫终端处于LTE网络且支持VOLTE的情况下，就可以将标识信息附加在Invite消息中发送至待应答设备，在呼
叫终端处于LTE网络且不支持VOLTE，就可以将标识信息附加在Setup消息中发送至待应答设备。
当然，上述第二终端还可以处于第三使能状态下，即处于非LTE网络，与第二终端LTE网络使能状态为第二使能状态一样，第二终端仍可采用第二使能参数发送标识信息，即直接将标识信息附加在第二使能参数中发送至第三终端或服务器。
本发明第三实施例提供了一种通讯方法，该方法的流程如图3所示，该方法是第二终端屏幕界面的变化过程，包括步骤S302至S304：
S302，与第一终端建立D2D连接，并接收通话请求消息；
S304，在屏幕上显示通话请求消息的可视提示，其中，可视提示包括文字和/或图像，通话请求消息用于请求第二终端发出呼叫请求。
在实现时，可以是第一终端与第二终端之前就建立过D2D连接，两个终端之间都有记忆，类似连接到WIFI网络一样，则此时就可以直接建立第一终端和第二终端间的D2D连接。在建立连接后，由于是第一终端希望第二终端帮助其拨打电话，因此，需要向第二终端发出通话请求消息，第二终端在屏幕上呈现较为人性化的可视提示，例如，“有手机请求通过您的手机拨打电话”。
通过上述过程，就可以让第二终端知晓有其他终端请求其代为发出呼叫，实现过程较为人性化。
在屏幕上显示通话请求消息的可视提示之后，通话请求消息的可视提示接收通话请求确认消息，获取第一终端的标识信息，并在屏幕上显示标识信息的可视提示，其中，用户触发通话请求消息的可视提示的过程可以是触发附属在可视提示上的确认按键等，也可以是直接点击通话请求消息的可视提示就可以获取标识信息；标识信息的可视提示接收转换请求，将标识信息转换为待发送的文字信息，并在发出呼叫时，将文字信息发送至第三终端或服务器。
上述过程在实现时，帮助第一终端拨打电话的第二终端可以是第一终端用户的朋友，也可以是第一终端用户完全不认识的人。
如果第一终端用户由于自己电话欠费或即将没电的原因，无法使用自己的电话发出呼叫，则第一终端用户就可以通过D2D技术让第二终端用户帮助其发出呼叫，此时，第一终端的位置信息相对于身份信息就没有那么重要了，就可以只获取第一终端的身份信息。获取第一终端的标识信息的类型可以是第一终端的用户选择的，也可以是第二终端的用户选择的，此处不做限定。通过此种方法，就可以在用户不想使用自己手机或没有办法使用自己手机拨打电话时，通过其他人的手机帮助其拨打电话，用户体验较好。
如果第一终端用户被困电梯等密闭且没有信号的空间中，周围没有其他人可以给与其帮助，其又没办法通过拨打电话向外求救，则就可以通过上述方法来与第二终端建立D2D连接。
由于第一终端用户与第二终端用户不认识，因此，在此之前两个终端是从来没有建立过D2D连接的，因此，在屏幕上显示通话请求消息的可视提示之前，先会在屏幕上显示来自第一终端的D2D连接请求的可视提示，D2D连接请求的可视提示接收连接确认消息后(即当第二终端的用户触发了可视提示后)，与第一终端建立D2D连接，并在屏幕上显示D2D连接成功的可视提示，例如，在屏幕上弹出D2D连接成功的提示信息，以提示第二终端用户此时已经与第一终端建立了D2D连接；随后，当第一终端发送通话请求消息时，就会在第二终端屏幕上呈现该通话请求消息的可视提示了。
此时，获取第一终端的标识信息时，第一终端的位置信息就尤为重要，如果第一终端无法定位，则第二终端可以打开GPS定位来获取自身的位置信息，再以D2D技术和第二终端的位置信息计算第一终端的位置信息，并获取第一终端的身份信息，以获得第一终端的所有标识信息。当然，如果第一终端可以进行定位，那么就由第一终端定位后，将位置信息发送至
第二终端即可，在两个终端进行屏幕界面设置时，可以在两个终端进行交互，以确定由谁获取第一终端的标识信息。通过上述方法，可以让用户在被困于没有信号而需要紧急呼叫时，通过其他人帮助其发出求救呼叫，用户体验较好。
在第二终端获取到第一终端的标识信息后，就可以向待应答设备发出呼叫，例如，可以将呼叫发至普通的第三终端，也呼叫急救或报警系统的服务器，通过服务器的接线人员来接起该呼叫。
因此，本实施例还提供了另一种通讯方法，该方法应用在第三终端或服务器侧，是第三终端或服务器侧界面的呈现状态，其流程如图4所示，包括步骤S402至S404：
S402，在屏幕上呈现来自第二终端的呼叫，其中，第二终端为代替第一终端发出呼叫请求的终端。此时，第三终端或服务器可以接听电话，但也可能由于占线或各种原因没能接起电话，所以，需要执行S404。
S404，接收来自第二终端的文字信息，并将文字信息的提示框呈现在屏幕上，其中，文字信息至少包括：转换为文字的第一终端的标识信息。如果上述S402实现时第三终端或服务器接起了第二终端发起的呼叫，执行S404的过程可以让第三终端或服务器更加清晰的确定刚才是一个转入呼叫，呼叫主体并非第二终端；如果上述S402实现时第三终端或服务器没有接起第二终端发起的呼叫，则向第三终端或服务器发送文字信息的过程可以让第三终端或服务器知晓有哪个终端想要给其拨打电话，以便更加清楚的回拨电话或采取救援，用户体验较好。
本发明第四实施例提供了一种通讯装置，该装置可以设置在第一终端中，该装置的结构示意如图5所示，包括：第一连接模块10，设置为通过D2D技术与第二终端建立连接；第一发送模块20，设置为向第二终端发送通话请求消息，其中，通话请求消息用于请求第二终端发出呼叫请求。
上述第一连接模块10具体可以包括：发送单元，设置为发送设备查
询信息；接收单元，设置为接收来自各个终端的设备反馈信息，其中，所述终端为在预定距离范围内支持所述D2D技术的终端，设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式；连接单元，设置为按照预定规则从接收到设备反馈信息的终端中选择出一个终端作为第二终端，并与第二终端建立连接。
上述连接单元具体还可以设置为：获取每个终端反馈的设备反馈信息中各个参数的预设优先级权重；按照预设参数评分规则确定每个终端反馈的设备反馈信息中各个参数的评分值；根据各个参数的预设优先级权重和评分值选择第二终端。具体实现时，可以根据各个参数的预设优先级权重和评分值确定每个终端的优先级；从所有优先级中选择优先级最高的终端作为第二终端。
上述通讯装置还可以包括定位模块，与第一连接模块10和第一发送模块20耦合，设置为通过全球定位系统GPS技术获取第一终端的位置信息。
本发明第五实施例提供了一种通讯装置，该装置可以设置在第二终端中，其结构示意如图6所示，包括：第二连接模块30，设置为通过设备到设备D2D技术与第一终端建立连接；呼叫模块40，设置为接收来自第一终端的通话请求消息，并根据通话请求消息发出呼叫，其中，通话请求消息用于请求第二终端发出呼叫请求。
上述通讯装置还可以包括第二发送模块，设置为将呼叫参数信息发送至第三终端或服务器，其中，呼叫参数信息至少包括：第一终端的标识信息；第三终端或服务器为呼叫的待应答设备。实现时，上述第二发送模块30，具体设置为LTE网络使能状态为第一使能状态，将标识信息附加在第一使能参数中发送至第三终端或服务器；LTE网络使能状态为第二使能状态，将标识信息附加在第二使能参数中发送至第三终端或服务器。
本发明第六实施例提供了一种通讯系统，该通讯系统包括：第一终端和第二终端；其中，第一终端，通过设备到设备D2D技术与第二终端建立连接；并向第二终端发送通话请求消息，其中，通话请求消息用于请求第二终端发出呼叫请求；第二终端，根据通话请求消息发出呼叫。具体设置时，上述第一终端可以包括上述第四实施例中的通讯装置，上述第二终端可以包括上述第五实施例中的通讯装置，此处不再赘述。
本发明第七实施例提供了一种移动终端发出呼叫的方法，该方法的流程如图7所示，包括步骤S701至S706。
S701，一台支持D2D功能的终端A拨打紧急电话，终端A自己判断当前是否有网络服务。如果有服务，则执行S702，否则，执行S703。
S702，发起普通的紧急呼叫流程。
S703，终端A启动D2D通信模式并检测周围是否有适合配对且有网络服务的D2D终端。
S704，终端A和周围符合要求的终端B配对，并定位计算出自己的位置信息。
S705，终端A将自己的通话请求、身份信息(如IMSI，本机号码)及位置信息发送给终端B。
S706，终端B根据收到的消息，利用自己的网络服务将紧急电话拨打出去。
本发明第五实施例提供了一种移动终端，该移动终端支持D2D通信，在无网络信号的情况下，可以利用D2D功能进行紧急呼叫。本实施例提供的移动终端与上述第三实施例中提供的移动终端虽然各个功能模块的命名有所不同，但能够实现相同的功能，该移动终端包括：
信号测量模块，对终端当前的信号进行测量；D2D判决模块，终端选择最优的D2D终端进行配对；D2D通信模块，D2D终端间的通信服务；
位置定位模块，终端位置的计算和定位；通话管理模块，终端正常话音业务。
下面结合图8，对该移动终端和与为其拨打紧急电话的另一D2D移动终端的交互过程，其包括如下过程：
(1)终端A拨打紧急电话时，首先通过信号测量模块，对当前接收的信号情况进行测量，以判断是否有网络信号。如果有信号(即使很弱)，则通过通话管理模块发起普通的紧急呼叫流程。否则执行(2)。
(2)终端A通过D2D通讯模块来检测搜寻周围是否有适合配对的D2D终端，并通过D2D判决模块选择最优的终端进行配对。由于此过程相对复杂，故用子流程图的方式进行详细说明，如图8所示，包括如下过程：
S801，判断当前是否已经有了配对好的终端。如果有，则执行S802，否则执行S803。
S802，终端A向已经配对好的终端发送能力查询消息，以接收可配对的终端B的状态。
S803，终端A发送组播消息，查询附近所有有配对能力的终端集合Uei(i＝1,2,3…)。
S804，附近配对好的终端Uei(i＝1,2,3…)收到查询消息后反馈自己的状态，例如，是否有信号，信号强度如何，网络制式等。
S805，终端A收到Uei(i＝1,2,3…)的反馈信息。
S806，通过判决模块按照一定的规则进行排序，如选择其中最优(比如信号好，制式高)的终端(假设终端B)。
S807，与终端B完成配对。
上述发送组播消息的过程主要是基于direct空口的D2D设备发现过程：蜂窝网为D2D发现预留一部分资源专门用于D2D发现信号的发送和检测，并通过系统广播消息将cell-specific的公共配置信息告知小区内的所有支
持D2D发现功能的终端。本实施例中，终端A首先根据小区公共配置，随机的或者有目的的选择发现信号的序列格式、时频资源位置、MCS以及初始功率等参数进行发现信号的发射，发现信号是sequence和message的混合形式，例如帧前缀采用基于sequence的pilot，后接message中携带information，其中的information消息中携带有终端A的能力查询消息。而被发现终端Uei(i＝1,2,3…)同样根据小区公共配置，在D2D发现信号资源池上进行周期性的盲检,从而检测出来自终端A的发现信号，并且解析出其中的information信息，根据信息的内容做出response响应(是否有信号，信号强度如何，网络制式等)，终端A根据收到的信息按照一定的排序规则最终选出适合配对的最优终端B。
本实施例中，判决模块排序的规则可以按照网络制式、信号强度两个维度来判决，每个维度给予一定的分值，最终将两个维度的分值相加，从而可以选出分值较高即最优的终端。维度及分值定义可以如下表1所示。
表1
根据以上定义，做如下举例：UE1：4G网络，-80dBm；UE2：4G网络，-90dBm；UE3：3G网络，-70dBm；UE4：3G网络，-76dBm。则上述UE中，UE3为最优配对终端。
(3)终端A和终端B配对后，终端A通过位置服务模块计算出自己的位置。
具体是实现为：终端A和终端B配对后，D2D通讯模块将位置定位请求消息(Position Location Request Message)发送给位置服务模块，触发其启动GPS定位服务，位置定位模块根据收到的卫星数据计算出自身的位置信息，例如：经纬度(longitude，latitude)(205.395583333332，57.9323888888888)，然后，将此附加在位置定位响应消息(Position Location Response Message)中反馈给D2D通讯模块。其中，Position Location request和Respone消息结构定义如下表2和表3所示。
表2
表3
(4)终端A将紧急通话请求消息(Emergency Call Request Message)，及携带终端A的身份信息(如IMSI、本机号码)，位置信息通过D2D通讯模块一起传递给终端B。其中，Emergency Call Information Request消息结构定义如下表4所示。
表4
终端B通过D2D通讯模块收到终端A的紧急呼叫请求后，回复紧急呼叫响应消息(Emergency Call Response Message)，告知终端A是否可以进行紧急呼叫。如果不行，则需要给出具体的原因，终端A则根据具体原因补充完成后再发送紧急呼叫请求消息，直到成功。其中，Emergency Call Response Message结构定义如下表5所示。
表5
(5)终端B收到终端A最终的请求消息后，终端B上会显示出终端A紧急求救的提示信息，信息内容包括但不限于：终端A的电话号码(Phone Number)，终端A的位置信息(longitude，latitude)，终端A需要拨打的紧急号码(Dial Number)以及相应的友好提示，如“终端A用户(Phone Number)遇到困难，请提供帮助”等。终端B的用户看到提示信息后，可以通过自身的通话管理模块直接拨打终端A的求救电话，从而帮助终端A完成紧急呼叫。终端B拨打紧急电话时可以携带的信息有：终端A的身份(如IMSI、本机号码)、位置信息、终端B的身份信息等(如IMSI,本机号码)，从而可以告知网络此紧急呼叫是终端A期望呼叫的，网络也能了解终端A的位置信息，从而为救援提供帮助。
而为了防止终端B拨打紧急电话时因网络忙及其他原因无法接通的弊端，终端B在拨打紧急电话和网络的信令交互中我们做如下定义：终端B可以以携带终端A的身份信息(如IMSI、本机号码)，位置信息及自己的身份信息，从而清晰的告诉网络此紧急呼叫的详细情况(如本机拨打还是代理拨打，以及各自的电话号码等等)，网络则将此信息反馈给紧急呼叫平台，呼叫平台在业务恢复后可以主动联系相应的终端用户进行施救。
终端B在发起紧急呼叫并携带终端A的紧急电话信息时，根据终端B的网络情况分为不同的流程和携带规则。
在基于VOLTE的紧急呼叫下，终端A的身份和位置信息可以附加在Invite消息(为3GPP定义的标准消息)中，对其结构进行扩展，定义如下表6所示。
表6
在基于CSFB回落到2/3G网络以及在2/3G网络下直接发起紧急呼叫时，终端A的身份和位置信息可以附加在Setup Message(3GPP定义的标准消息)中，对其结构进行扩展，定义如下表7所示。
表7
至此，终端A在无信号的情况下通过D2D通信技术利用其他有信号的配对终端B来发起实现了紧急呼叫业务。
应用场景：用户将终端A放在没有网络信号的地方，拨打紧急电话(如110、120等)，终端A会首先检查周围是否有已经配对好的D2D终端，并且此终端必须有网络信号，如果有的话终端A给此终端B发送紧急呼叫信息和自己的位置信息，终端B利用自己的网络服务将终端A的紧急电话拨打出去，同时其携带终端A的身份和位置，从而可以告知网络此紧急呼叫是终端A期望呼叫的，网络也能了解终端A的位置信息，从而为救援提供帮助。此种情况一般发生在用户被困电梯、地下车库、没有信号的深山或大海中，需要通过紧急电话求救的情况。
本发明的实施例还提供了一种存储介质，该存储介质包括存储的程序，其中，上述程序运行时执行上述任一项所述的方法。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本发明的实施例还提供了一种处理器，该处理器用于运行程序，其中，该程序运行时执行上述任一项方法中的步骤。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。
如上所述，本发明实施例提供的一种通讯方法、装置及系统具有以下有益效果：该方法可以在不使用自身终端的情况下拨打电话，在实现时，即使终端处于没有网络信号的情况，也无需惊慌，可以借助D2D技术请求其他终端帮助实现呼叫，一旦遇到危险情况，也可以通过第二终端完成拨打紧急电话的事件，用户体验较高，解决了现有技术的如下问题：当用户又不想用自己的移动终端发出呼叫，身边又没有其他移动终端时，该用户就无法联系其想呼叫的用户，用户体验较低。
Claims (21)
- 一种通讯方法，包括：第一终端通过设备到设备D2D技术与第二终端建立连接；所述第一终端向所述第二终端发送通话请求消息，其中，所述通话请求消息用于请求所述第二终端发出呼叫请求。
- 如权利要求1所述的通讯方法，其中，所述第一终端通过D2D技术与第二终端建立连接，包括：所述第一终端发送设备查询信息；所述第一终端接收来自各个终端的设备反馈信息，其中，所述终端为在预定距离范围内支持所述D2D技术的终端，所述设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式；所述第一终端按照预定规则从接收到所述设备反馈信息的终端中选择出一个终端作为所述第二终端，并与所述第二终端建立连接。
- 如权利要求2所述的通讯方法，其中，所述第一终端按照预定规则从接收到所述设备反馈信息的终端中选择出一个终端作为所述第二终端，包括：所述第一终端获取每个终端反馈的所述设备反馈信息中各个参数的预设优先级权重；所述第一终端按照预设参数评分规则确定每个终端反馈的所述设备反馈信息中各个参数的评分值；所述第一终端根据各个参数的所述预设优先级权重和所述评分值选择所述第二终端。
- 如权利要求2所述的通讯方法，其中，在选择出所述第二终 端之后，与所述第二终端建立连接的步骤，包括：所述第一终端向所述第二终端发送连接建立请求消息；所述第一终端接收所述第二终端反馈的连接建立应答消息，并与所述第二终端建立连接。
- 如权利要求1至4中任一项所述的通讯方法，其中，所述通话请求消息携带有：所述第一终端的标识信息。
- 如权利要求5所述的通讯方法，其中，所述第一终端向所述第二终端发送通话请求消息，包括：将所述标识信息附加在通话请求消息中发送至所述第二终端，其中，所述标识信息包括：位置信息和/或身份信息。
- 一种通讯方法，包括：通过设备到设备D2D技术与第一终端建立连接；接收来自所述第一终端的通话请求消息，并根据所述通话请求消息发出呼叫，其中，所述通话请求消息用于请求第二终端代发出呼叫请求。
- 如权利要求7所述的通讯方法，其中，通过设备到设备D2D技术与第一终端建立连接，包括：接收来自所述第一终端的连接建立请求消息；向所述第一终端发送连接建立应答消息，并与所述第一终端建立连接。
- 如权利要求7所述的通讯方法，其中，根据所述通话请求消 息发出呼叫之后，还包括：将呼叫参数信息发送至第三终端或服务器，其中，所述呼叫参数信息至少包括：所述第一终端的标识信息；所述第三终端或所述服务器为呼叫的待应答设备。
- 如权利要求9所述的通讯方法，其中，将呼叫参数信息发送至第三终端或服务器，包括：LTE网络使能状态为第一使能状态，将所述标识信息附加在第一使能参数中发送至所述第三终端或所述服务器；LTE网络使能状态为第二使能状态，将所述标识信息附加在第二使能参数中发送至所述第三终端或所述服务器。
- 一种通讯方法，应用于第二终端，包括：与第一终端建立D2D连接，并接收通话请求消息；在屏幕上显示所述通话请求消息的可视提示，其中，所述可视提示包括文字和/或图像，所述通话请求消息用于请求第二终端发出呼叫请求。
- 如权利要求11所述的通讯方法，其中，在屏幕上显示所述通话请求消息的可视提示之后，还包括：所述通话请求消息的可视提示接收通话请求确认消息，获取所述第一终端的标识信息，并在屏幕上显示所述标识信息的可视提示；所述标识信息的可视提示接收转换请求，将所述标识信息转换为待发送的文字信息，并在发出呼叫时，将所述文字信息发送至第三终端或服务器。
- 如权利要求11或12所述的通讯方法，其中，在屏幕上显示所述通话请求消息的可视提示之前，还包括：在屏幕上显示来自第一终端的D2D连接请求的可视提示；所述D2D连接请求的可视提示接收连接确认消息，与所述第一终端建立D2D连接；在屏幕上显示D2D连接成功的可视提示。
- 一种通讯装置，包括：第一连接模块，设置为通过设备到设备D2D技术与第二终端建立连接；第一发送模块，设置为向所述第二终端发送通话请求消息，其中，所述通话请求消息用于请求所述第二终端发出呼叫请求。
- 如权利要求14所述的通讯装置，其中，所述第一连接模块包括：发送单元，设置为发送设备查询信息；接收单元，设置为接收来自各个终端的设备反馈信息，其中，所述终端为在预定距离范围内支持所述D2D技术的终端，所述设备反馈信息至少携带有以下参数之一：终端的信号强度，终端的网络制式；连接单元，设置为按照预定规则从接收到所述设备反馈信息的终端中选择出一个终端作为所述第二终端，并与所述第二终端建立连接。
- 如权利要求15所述的通讯装置，其中，所述连接单元具体设置为：获取每个终端反馈的所述设备反馈信息中各个参数的预设优先 级权重；按照预设参数评分规则确定每个终端反馈的所述设备反馈信息中各个参数的评分值；根据各个参数的所述预设优先级权重和所述评分值选择所述第二终端。
- 一种通讯装置，包括：第二连接模块，设置为通过设备到设备D2D技术与第一终端建立连接；呼叫模块，设置为接收来自所述第一终端的通话请求消息，并根据所述通话请求消息发出呼叫，其中，所述通话请求消息用于请求第二终端发出呼叫请求。
- 如权利要求17所述的通讯装置，其中，还包括：第二发送模块，设置为将呼叫参数信息发送至第三终端或服务器，其中，所述呼叫参数信息至少包括：所述第一终端的标识信息；所述第三终端或所述服务器为呼叫的待应答设备。
- 如权利要求18所述的通讯装置，其中，所述第二发送模块，具体设置为：LTE网络使能状态为第一使能状态，将所述标识信息附加在第一使能参数中发送至所述第三终端或所述服务器；LTE网络使能状态为第二使能状态，将所述标识信息附加在第二使能参数中发送至所述第三终端或所述服务器。
- 一种通讯系统，包括：第一终端和第二终端；其中，所述第一终端，通过设备到设备D2D技术与第二终端建立连接；并向所述第二终端发送通话请求消息，其中，所述通话请求消息用于 请求所述第二终端发出呼叫请求；所述第二终端，根据所述通话请求消息发出呼叫。
- 一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行权利要求1至13中任一项所述的方法。
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