CN101909263A - Method for realizing three-way call or conference call and dual-standby terminal - Google Patents
Method for realizing three-way call or conference call and dual-standby terminal Download PDFInfo
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- CN101909263A CN101909263A CN200910057384XA CN200910057384A CN101909263A CN 101909263 A CN101909263 A CN 101909263A CN 200910057384X A CN200910057384X A CN 200910057384XA CN 200910057384 A CN200910057384 A CN 200910057384A CN 101909263 A CN101909263 A CN 101909263A
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Abstract
The invention relates to the filed of communication, in particular to a method for realizing three-way call or conference call and a dual-standby terminal. In the invention, decoded voice signals from a first terminal and a second terminal are superposed by the dual-standby terminal and output to a local user, and a voice signal formed by superposing the voice signal of the local user and a voice signal of another terminal establishing voice service connection is sent to a terminal. Accordingly, even if no network equipment participates, the dual-standby terminal can also realize the three-way call by the self functions so that the realizing scheme of the three-way call is simpler and more convenient.
Description
Technical field
The present invention relates to the communications field, particularly the Three-Way Calling technology in the communications field.
Background technology
Under the common driving of technology, market and wireless mobile applied business, the wireless mobile communications industry development is rapid, and mobile communication product has become the necessary article of people's routine work, life.Along with mobile communication is increasing to the influence of people's life, the phenomenon of two mobile phones of an individual demand is more and more.For example some need the crowd of frequent two places work; for avoiding expensive roaming in other places expense; usually can respectively have subscriber identification module (Subscriber Identity Module is called for short " the SIM ") card on anticipatory remark ground in two places, use different SIM card in different cities.But frequent replacing SIM card or to carry two mobile phones all be the thing that bothers very much, the double-standby terminal of a machine even numbers arises at the historic moment.
The double-standby terminal of a so-called machine even numbers, refer to and in a terminal, can install two independently SIM card or user serve identification module (User Service Identify Module, be called for short " USIM ") card, usim card with many cover user information perhaps is installed, and (usim card is being brought into play in 3G network as the effect of SIM card in the GSM network, can store user's personal information safely, and the execution cryptographic algorithm etc., different is, usim card can have one or more sets information of user as a card even numbers, or one-card multi-number etc.; And, can implement safe aerial management for specific card image.In addition, usim card can be realized the one or more network applications on the usim card, as stored value card etc.).
Because SIM card and usim card all are anti-tamper smart cards, can guarantee the fail safe of network and private data, possess identical physical characteristic.Therefore double-standby terminal can use two user profile in the described SIM/USIM card, reside in as required on the mobile network of suitable operator, and can be the mobile network of same operator, also can be the network of different operators; Can be same sub-district, also can be different sub-districts, depend on the requirement of communication quality and determine.
Yet, the present inventor finds, application to double-standby terminal at present only limits to utilize the different user information in the SIM/USIM card resident in heterogeneous networks, if double-standby terminal and other-end need carry out Three-Way Calling, then this double-standby terminal then still is equivalent to an ordinary terminal, adopt common Three-Way Calling to realize principle: with three the tunnel in addition multi carrier wave look after and guide, make carrier wave isolated, has only voice signal, voice signal makes with contrast device contrast and can not collide between them, with the mode of electric connector they received then and realizes that together multichannel converses simultaneously.The realization technology of Three-Way Calling can be the United States Patent (USP) of " 6895086 " referring to the patent No. also.That is to say, still need finish the Three-Way Calling that comprises this double-standby terminal, realize complicated by the network equipment.
Summary of the invention
The object of the present invention is to provide a kind of three parts and MPTY implementation method and double-standby terminal, make that the function of Three-Way Calling can simple realization, and need not the participation of the network equipment.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of Three-Way Calling implementation method, comprise following steps:
Double-standby terminal is set up with second terminal with first terminal respectively and is used for being connected of transmitting voice service;
When double-standby terminal need be carried out Three-Way Calling, respectively to decoding from the downlink voice signal of first terminal and second terminal, after will synthesizing addition through the voice signal of the voice signal of decoded first terminal and second terminal, export to the local user of double-standby terminal;
When double-standby terminal sends the ascending voice signal to a terminal that has connection, the voice signal that will receive by the microphone of this double-standby terminal, with have the synthetic of another terminal of being connected through decoded voice signal addition, voice signal to addition after synthetic is encoded, and the voice signal after encoded is sent.
Embodiments of the present invention also provide a kind of double-standby terminal, comprise:
Transceiver module is used for respectively to having first terminal and the second terminal receiving and transmitting voice signal that speech business connects;
Decoder module is used for when needs are carried out Three-Way Calling, respectively to decoding from the downlink voice signal of first terminal and second terminal;
Synthetic summation module is used for and will synthesizes addition through the voice signal of decoded first terminal of decoder module and the voice signal of second terminal;
The voice signal output module is used for exporting through synthesizing the voice signal after summation module is synthesized addition to the local user of this double-standby terminal;
The addition synthesis module, be used for carrying out the Three-Way Calling process, need when a terminal that has connection sends the ascending voice signal, the voice signal that will receive by the microphone of this double-standby terminal and has the synthetic through decoded voice signal addition of another terminal of being connected;
Coding module, the voice signal that is used for addition after synthetic is encoded, and the voice signal after will encoding is exported to transceiver module.
Embodiments of the present invention also provide a kind of MPTY implementation method, comprise:
Local double-standby terminal is set up with second terminal with first terminal respectively and is used for being connected of transmitting voice service, and described first terminal and/or second terminal also are double-standby terminal;
Described local double-standby terminal is used the Three-Way Calling between above-mentioned Three-Way Calling implementation method realization and described first terminal and second terminal;
Described first terminal and/or second terminal are used above-mentioned Three-Way Calling implementation method simultaneously, send this terminal use and set up another terminal use's that speech business is connected voice signal to described local double-standby terminal with this terminal, to this terminal use output from described local double-standby terminal with set up another terminal use's that speech business is connected voice signal with this terminal, to described another terminal use send from described local double-standby terminal and with this terminal use's voice signal.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
Double-standby terminal earlier will be from the synthetic addition of the decoded voice signal of first terminal and second terminal before exporting voice signal to the local user, and the voice signal of exporting to the local user is the voice signal after the synthetic addition; Send to the ascending voice signal of a terminal, for the local user is had the addition of the terminal that speech business the is connected voice signal after synthetic with another.Not only make the local user of double-standby terminal can hear the sound of first terminal user and the sound of second terminal user simultaneously, and first terminal user can hear the local user of double-standby terminal and the sound of second terminal user simultaneously, second terminal user can be heard the local user of double-standby terminal and the sound of first terminal user simultaneously.Therefore, even without the participation of the network equipment, double-standby terminal also can be realized Three-Way Calling by the function of self, makes that the implementation of Three-Way Calling is more simple and easy.
Further, do not need to send local user's voice signal, and under first terminal situation identical, can not use speech coder, voice signal is encoded with the coded format of the voice signal of second terminal at double-standby terminal; And directly the voice signal before the decoding of first terminal is transmitted to second terminal, and same, directly the voice signal before the decoding of second terminal is transmitted to first terminal.Accelerated double-standby terminal greatly and sent the speed of the voice signal of another terminal, thereby effectively guaranteed to participate in the user experience of Three-Way Calling to a terminal.
Further, control states such as the unlatching of three-party talking function, termination, can make the user can control the realization of Three-Way Calling as required flexibly by modes such as function key are set.
Description of drawings
Fig. 1 is the Three-Way Calling implementation method flow chart according to first embodiment of the invention;
Fig. 2 is a schematic diagram of realizing Three-Way Calling according to double-standby terminal in the first embodiment of the invention;
Fig. 3 is a schematic diagram of realizing Three-Way Calling according to double-standby terminal in the second embodiment of the invention;
Fig. 4 is the double-standby terminal structural representation according to four embodiment of the invention.
Embodiment
In the following description, in order to make the reader understand the application better many ins and outs have been proposed.But, persons of ordinary skill in the art may appreciate that even without these ins and outs with based on the many variations and the modification of following each execution mode, also can realize each claim of the application technical scheme required for protection.
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
First embodiment of the invention relates to a kind of Three-Way Calling implementation method, and idiographic flow as shown in Figure 1.
In step 110, double-standby terminal is set up with second terminal with first terminal respectively and is used for being connected of transmitting voice service.Specifically, double-standby terminal uses two user profile and other two station terminals (i.e. first terminal and second terminal) in the SIM/USIM card to set up speech transmission service respectively.Double-standby terminal in the present embodiment comprises two independently radio frequency (Radio Frequency, be called for short " RF ") transceiver, carry out the transmitting-receiving of voice signal with first terminal and second terminal respectively by 2 RF transceivers, realize conversing simultaneously, as shown in Figure 2 with first terminal and second terminal.For convenience of description, in the present embodiment first terminal is called terminal A, the user of terminal A is user A, with user profile in the SIM/USIM card of terminal A dialogue be user profile 1 (as the SIM1 among Fig. 2); Second terminal is called terminal B, and the user of terminal B is user B, with user profile in the SIM/USIM card of terminal B dialogue be user profile 2 (as the SIM2 among Fig. 2).The voice signal that terminal A sends abbreviates A as, and the voice signal that terminal B sends abbreviates B as.
Then, in step 120, double-standby terminal carries out Base-Band Processing to the terminal A that receives and the downlink voice signal of terminal B respectively, and the voice signal after Base-Band Processing is decoded respectively.Specifically, when double-standby terminal is carried out Three-Way Calling, will be from the antenna 1 descending RF signal that obtains self terminal A to send through the network transfer, through RF transceiver 1, enter into Base-Band Processing 1, Base-Band Processing is finished processing such as the demodulation, channel-decoding of signal, obtains signal and is sent to Voice decoder 1, and Voice decoder 1 recovers to obtain terminal party A-subscriber's voice A.From the antenna 2 descending RF signals that obtain self terminal B to send through the network transfer, through RF transceiver 2, enter into Base-Band Processing 2, Base-Band Processing is finished processing such as the demodulation, channel-decoding of signal, obtain signal and be sent to Voice decoder 2, Voice decoder 2 recovers to obtain terminal party B-subscriber's voice B.
Then, in step 130, the voice A of the user A that double-standby terminal will obtain after decoding and the voice B of user B synthesize addition, deliver to the loud speaker of this double-standby terminal, then the local user of this double-standby terminal (abbreviating user C as) can hear the sound of user A and the sound of user B simultaneously, as shown in Figure 2.
In step 140, when double-standby terminal sends the ascending voice signal to a terminal that has connection, the voice signal that will receive by the microphone of this double-standby terminal, with have the synthetic of another terminal of being connected through decoded voice signal addition, the voice signal to addition after synthetic is encoded.Specifically, when double-standby terminal is carried out Three-Way Calling at needs, this double-standby terminal user (being user C) one's voice in speech is become voice signal into voice signal C by the microphone of double-standby terminal, divide two-way to handle, one the tunnel is used to send to terminal A, and another road is used to send to terminal B.
The road voice signal C that is used to send to terminal A handles as follows:
The voice B addition of voice signal C and Voice decoder 2 outputs is synthetic, obtain the sound of user C and the morbid sound that user B transmits sound.This morbid sound 1 (being B+C) is sent to speech coder 1 encodes.
The road voice signal C that is used to send to terminal B handles as follows:
The voice A addition of voice signal C and Voice decoder 1 output is synthetic, obtain the sound of user C and the morbid sound that user A transmits sound.This morbid sound 2 (being A+C) is sent to speech coder 2 encodes.
In step 150, the voice signal after the double-standby terminal transmission is encoded.Specifically, the data after speech coder 1 will be encoded (being encoded voice signal B+C) are given Base-Band Processing 1, after handling through chnnel coding, modulation etc., form baseband signal, issue RF transceiver 1; By RF transceiver 1 baseband signal is modulated on the corresponding channel and sends to the base station,, the sound that has mixed B and C is delivered among the terminal A by the mobile network.Make user A can in Three-Way Calling, also hear the sound of B and C simultaneously.Data after speech coder 2 will be encoded (being encoded voice signal A+C) are given Base-Band Processing 2, after handling through chnnel coding, modulation etc., form baseband signal, issue RF transceiver 2; By RF transceiver 2 baseband signal is modulated on the corresponding channel and sends to the base station,, the sound that has mixed A and C is delivered among the terminal B by the mobile network.User B can also hear the sound of A and C simultaneously in Three-Way Calling, as shown in Figure 2.
Need to prove, only provided two the independently situations of SIM card of using among the figure.But in actual applications, also be applicable to a situation with usim card of two cover user information, if the double-standby terminal use is a usim card with two cover user information, then double-standby terminal should be supported the usim card interface.
Be not difficult to find, step 120 in the present embodiment is the processing mode of the descending reception path of voice to step 130, and step 140 is the processing mode of voice upward signal to step 150, therefore step 120 is to step 130, in fact separate with step 140 to step 150, there is no inevitable sequencing.In addition, because baseband processor, Voice decoder, speech coder in the present embodiment all need to handle two paths of signals respectively, so the double-standby terminal in the present embodiment need possess speed is fast, performance is good baseband processor, Voice decoder, speech coder.
Because in the present embodiment, double-standby terminal earlier will be from the synthetic addition of the decoded voice signal of first terminal and second terminal before exporting voice signal to the local user, and the voice signal of exporting to the local user is the voice signal after the synthetic addition.Send to the ascending voice signal of a terminal, for the local user is had the addition of the terminal that speech business the is connected voice signal after synthetic with another.Not only make the local user of double-standby terminal can hear the sound of first terminal user and the sound of second terminal user simultaneously, and first terminal user can hear the local user of double-standby terminal and the sound of second terminal user simultaneously, second terminal user can be heard the local user of double-standby terminal and the sound of first terminal user simultaneously.Therefore, even without the participation of the network equipment, double-standby terminal also can be realized Three-Way Calling by the function of self, makes that the implementation of Three-Way Calling is more simple and easy (only needing the logical terminal of other two Daeporis of double-standby terminal to realize).
And, because technical scheme and the network formats and the onrelevant of present embodiment, therefore applicable to two RF double-standby terminals of variety of network systems, as global system for mobile communications GSM, Wideband Code Division Multiple Access (WCDMA) WCDMA, TD SDMA TD-SCDMA, CDMA 2000 etc.Certainly, also can be other diverse network standards.
What deserves to be mentioned is that the function of Three-Way Calling be opened, be suspended or stop to double-standby terminal can also by function key or external interface control, makes the user can control the realization of Three-Way Calling as required flexibly.Wherein, function key can realize by modes such as keyboard, menu, touch-screens, and external interface can be realized by bluetooth, mode such as infrared.
Second embodiment of the invention relates to a kind of Three-Way Calling implementation method.Second execution mode and first execution mode are basic identical, difference mainly is: in the first embodiment, by the Base-Band Processing in the double-standby terminal 1 and 2, speech coder 1 and 2, Voice decoder 1 and 2, realize respectively handling at the voice signal of terminal A and terminal B.And in the present embodiment, Base-Band Processing, speech coding, tone decoding are all separately by a module realization, as shown in Figure 3.
Be not difficult to find, owing to Base-Band Processing 1 and 2, speech coder 1 and 2, Voice decoder 1 and 2 only are processing units in logic.In base band single-chip implementation, baseband processor 1 and 2 is that identical, Voice decoder 1 and 2 is that identical, Voice decoder 1 and 2 also is identical.Therefore, can realize with a module fully.Concrete uplink and downlink audio signal processing method and the processing method in first execution mode are similar, do not repeat them here.
Third embodiment of the invention relates to a kind of Three-Way Calling implementation method.Present embodiment is improved on the basis of first or second execution mode.When double-standby terminal does not need to send local user's voice signal, if first terminal is identical with the coded format of the voice signal of second terminal, the downlink voice signal of first terminal before then double-standby terminal will be decoded directly sends to second terminal, and the voice signal of second terminal that decoding is preceding directly sends to first terminal.That is to say that it is quiet whether double-standby terminal can be provided with according to the voice signal of user C or user C, judges whether and the voice signal of user C need be sent.If do not need to send the voice signal of local user C, and the coded format of the voice signal A of user A and user B and B is when identical, and then this double-standby terminal can not use speech coder, need not voice signal A, B are encoded; And directly the signal forwarding before the user A tone decoding is given user B, and same, give user A with the signal forwarding before the user B tone decoding.Accelerated double-standby terminal greatly and sent the speed of the voice signal of another terminal, thereby effectively guaranteed to participate in the user experience of Three-Way Calling to a terminal.
Each method execution mode of the present invention all can be realized in modes such as software, hardware, firmwares.No matter the present invention be with software, hardware, or the firmware mode realize, instruction code can be stored in the memory of computer-accessible of any kind (for example permanent or revisable, volatibility or non-volatile, solid-state or non-solid-state, fixing or removable medium or the like).Equally, memory can for example be programmable logic array (Programmable Array Logic, be called for short " PAL "), random access memory (Random Access Memory, be called for short " RAM "), programmable read only memory (Programmable Read Only Memory, be called for short " PROM "), read-only memory (Read-Only Memory, be called for short " ROM "), Electrically Erasable Read Only Memory (Electrically Erasable Programmable ROM, be called for short " EEPROM "), disk, CD, digital versatile disc (Digital Versatile Disc is called for short " DVD ") or the like.
Four embodiment of the invention relates to a kind of double-standby terminal.As shown in Figure 4, this double-standby terminal comprises:
Transceiver module is used for respectively to having first terminal and the second terminal receiving and transmitting voice signal that speech business connects.
Baseband processing module be used for respectively first terminal received and the downlink voice signal of second terminal are carried out Base-Band Processing, and the voice signal after will handling outputs to decoder module.
Decoder module is used for when needs are carried out Three-Way Calling, respectively to decoding from the downlink voice signal of first terminal and second terminal.
Synthetic summation module is used for and will synthesizes addition through the voice signal of decoded first terminal of decoder module and the voice signal of second terminal.
The voice signal output module is used for exporting through synthesizing the voice signal after summation module is synthesized addition to the local user of this double-standby terminal.
The addition synthesis module, be used for carrying out the Three-Way Calling process, need when a terminal that has connection sends the ascending voice signal, the voice signal that will receive by the microphone of this double-standby terminal and has the synthetic through decoded voice signal addition of another terminal of being connected.
Coding module, the voice signal that is used for addition after synthetic is encoded, and the voice signal after will encoding exports to baseband processing module, and baseband processing module outputs to transceiver module and sends after also being used for the voice signal after encoded carried out Base-Band Processing.
Wherein, transceiver module is by two independently radio-frequency (RF) transceiver realizations, and two radio-frequency (RF) transceiver are separately to a terminal receiving and transmitting voice signal that has connection.Baseband processing module by two independently the Base-Band Processing submodule realize that two Base-Band Processing submodules carry out the Base-Band Processing of uplink and downlink signal respectively at first terminal and second terminal.Decoder module by two independently Voice decoder realize that two Voice decoders are decoded to the downlink voice signal of a terminal having connection separately.Coding module by two independently speech coder realize that two speech coders voice signal of a terminal that has connection of giving to be sent of respectively doing for oneself is encoded.
Need to prove that the double-standby terminal in the present embodiment can also comprise the Three-Way Calling control module, be used to open, suspend or stop the function of Three-Way Calling.
Be not difficult to find that first execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of first execution mode.The correlation technique details of mentioning in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in the present embodiment also can be applicable in first execution mode.
Fifth embodiment of the invention relates to a kind of double-standby terminal.The 5th execution mode and the 4th execution mode are basic identical, and difference mainly is:
In the 4th execution mode, baseband processing module is by two independently Base-Band Processing submodule realizations, and decoder module is by two independently Voice decoder realizations, and coding module is all by two independently speech coder realizations.
Yet in the 5th execution mode, baseband processing module, decoder module and coding module are all realized by a unit separately.
Be not difficult to find that second execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of second execution mode.The correlation technique details of mentioning in second execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in the present embodiment also can be applicable in second execution mode.
Sixth embodiment of the invention relates to a kind of double-standby terminal.The 6th execution mode improves on the basis of the 4th execution mode or the 5th execution mode, main improvements are: double-standby terminal also comprises judge module, is used to judge whether whether double-standby terminal needs to send local user's voice signal identical with the coded format of first terminal and the voice signal of second terminal.
Judge module is judging that double-standby terminal does not need to send local user's voice signal, and when the coded format of first terminal and the voice signal of second terminal is identical, the voice signal of indication transceiver module before the ascending voice signal that first terminal sends is second decoding terminals, the voice signal before the ascending voice signal that second terminal sends is first decoding terminals.
Be not difficult to find that the 3rd execution mode is and the corresponding method execution mode of present embodiment, present embodiment can with the enforcement of working in coordination of the 3rd execution mode.The correlation technique details of mentioning in the 3rd execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in the present embodiment also can be applicable in the 3rd execution mode.
Need to prove, each unit of mentioning in each equipment execution mode of the present invention all is a logical block, physically, a logical block can be a physical location, it also can be the part of a physical location, can also realize that the physics realization mode of these logical blocks itself is not most important with the combination of a plurality of physical locations, the combination of the function that these logical blocks realized is the key that just solves technical problem proposed by the invention.In addition, for outstanding innovation part of the present invention, above-mentioned each the equipment execution mode of the present invention will not introduced not too close unit with solving technical problem relation proposed by the invention, and this does not show that there is not other unit in the said equipment execution mode.
Seventh embodiment of the invention relates to a kind of MPTY implementation method, and present embodiment realizes on the basis of first or second execution mode.
Specifically, first terminal in first or second execution mode and/or second terminal are replaced with double-standby terminal by ordinary terminal, in terminal A, terminal B and terminal C (i.e. double-standby terminal in first or second execution mode), having two terminals at least is double-standby terminal, still be ordinary terminal with terminal A in the present embodiment, terminal B is that double-standby terminal describes.
Terminal C still adopt the method in first or second execution mode to realize and terminal A, terminal B between Three-Way Calling.Because terminal B also is a double-standby terminal, therefore can adopt similar method in first or second execution mode simultaneously, (describe with terminal C and another terminal for convenient, this terminal is called terminal D) set up the connection be used for transmitting voice service, and send this terminal use (being the party B-subscriber) and set up another terminal use's (being user D) that speech business is connected voice signal with this terminal to terminal C, to this terminal use (being the party B-subscriber) output come self terminal C and with terminal D user's voice signal, to the terminal D user export self terminal C and with the voice signal of this terminal use (being the party B-subscriber).
This shows, the voice signal that comes self terminal B that terminal C receives be actually party B-subscriber's voice signal and D user voice signal, the voice signal that sends to terminal A be actually C user's voice signal+party B-subscriber voice signal+D user voice signal, the voice signal of exporting to local user C be actually the party A-subscriber voice signal+party B-subscriber voice signal+D user voice signal.Similarly, user A, user B, user C, user D can hear the sound that removes other outdoor 3 users of this usefulness, realize MPTY.
Be not difficult to find that present embodiment is actually the expanded application of first or second execution mode, concrete technology is implemented in first or second execution mode and all is documented, and does not repeat them here.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (11)
1. a Three-Way Calling implementation method is characterized in that, comprises following steps:
Double-standby terminal is set up with second terminal with first terminal respectively and is used for being connected of transmitting voice service;
When described double-standby terminal need be carried out Three-Way Calling, respectively to decoding from the downlink voice signal of described first terminal and second terminal, after will synthesizing addition through the voice signal of the voice signal of decoded described first terminal and described second terminal, export to the local user of described double-standby terminal;
When described double-standby terminal sends the ascending voice signal to a terminal that has described connection, the voice signal that will receive by the microphone of this double-standby terminal, with have the synthetic of described another terminal that is connected through decoded voice signal addition, voice signal to described addition after synthetic is encoded, and the voice signal after encoded is sent.
2. Three-Way Calling implementation method according to claim 1 is characterized in that, also comprises following steps:
Described double-standby terminal carries out Base-Band Processing to described first terminal received and the downlink voice signal of second terminal respectively, and described downlink voice signal of decoding is the voice signal after Base-Band Processing;
When described double-standby terminal sends the voice signal after encoded, earlier the voice signal after encoded is carried out Base-Band Processing, again the voice signal after Base-Band Processing is sent.
3. Three-Way Calling implementation method according to claim 1 is characterized in that, also comprises following steps:
When described double-standby terminal does not need to send local user's voice signal, if described first terminal is identical with the coded format of the voice signal of second terminal, the downlink voice signal of described first terminal before then described double-standby terminal will be decoded directly sends to described second terminal, and the voice signal of described second terminal that decoding is preceding directly sends to described first terminal.
4. Three-Way Calling implementation method according to claim 1 is characterized in that, the function of described Three-Way Calling is opened, suspended or stop to described double-standby terminal by function key or external interface control.
5. Three-Way Calling implementation method according to claim 1 is characterized in that, described double-standby terminal is supported the network formats of one of following or its combination in any:
Global system for mobile communications GSM, Wideband Code Division Multiple Access (WCDMA) WCDMA, TD SDMA TD-SCDMA, CDMA 2000.
6. a double-standby terminal is characterized in that, comprises:
Transceiver module is used for respectively to having first terminal and the second terminal receiving and transmitting voice signal that speech business connects;
Decoder module is used for when needs are carried out Three-Way Calling, respectively to decoding from the downlink voice signal of described first terminal and second terminal;
Synthetic summation module is used for and will synthesizes addition through the voice signal of decoded described first terminal of described decoder module and the voice signal of described second terminal;
The voice signal output module is used for the voice signal of local user's output after the synthetic addition of described synthetic summation module to this double-standby terminal;
The addition synthesis module, be used for carrying out described Three-Way Calling process, need when a terminal that has described connection sends the ascending voice signal, the voice signal that will receive by the microphone of this double-standby terminal and has the synthetic through decoded voice signal addition of described another terminal that is connected;
Coding module, the voice signal that is used for described addition after synthetic is encoded, and the voice signal that described transceiver module sends be the voice signal after described coding module is encoded.
7. double-standby terminal according to claim 6 is characterized in that, described transceiver module is by two independently radio-frequency (RF) transceiver realizations, and described two radio-frequency (RF) transceiver are respectively to a terminal receiving and transmitting voice signal that has described connection;
Described decoder module realized by a Voice decoder, perhaps, described decoder module by two independently Voice decoder realize that described two Voice decoders are decoded to the downlink voice signal of a terminal having described connection respectively;
Described coding module is realized that by a speech coder perhaps, described coding module is by two independently speech coder realizations, and described two speech coders are respectively the voice signal of a terminal that has described connection of giving to be sent and encode.
8. double-standby terminal according to claim 6, it is characterized in that, described double-standby terminal also comprises baseband processing module, be used for respectively described first terminal received and the downlink voice signal of second terminal are carried out Base-Band Processing, and the voice signal after will handling outputs to described decoder module;
Voice signal after described coding module will be encoded is exported to described baseband processing module, and described baseband processing module outputs to described transceiver module after also being used for the voice signal after encoded carried out Base-Band Processing.
9. double-standby terminal according to claim 6, it is characterized in that, described double-standby terminal also comprises judge module, is used to judge whether whether described double-standby terminal needs to send local user's voice signal identical with the coded format of described first terminal and the voice signal of second terminal;
Described judge module is judging that described double-standby terminal does not need to send local user's voice signal, and when the coded format of described first terminal and the voice signal of second terminal is identical, indicate the voice signal of described transceiver module before the ascending voice signal that described first terminal sends is described second decoding terminals, the voice signal before the ascending voice signal that described second terminal sends is described first decoding terminals.
10. double-standby terminal according to claim 6 is characterized in that described double-standby terminal also comprises the Three-Way Calling control module, is used to open, suspend or stop the function of described Three-Way Calling.
11. a MPTY implementation method is characterized in that, comprises following steps:
Local double-standby terminal is set up with second terminal with first terminal respectively and is used for being connected of transmitting voice service, and described first terminal and/or second terminal also are double-standby terminal;
Each described method of using described local double-standby terminal in the described claim 1 to 5 realize and described first terminal and second terminal between Three-Way Calling;
Described first terminal and/or second terminal are used each described method in the described claim 1 to 5 simultaneously, send this terminal use and set up another terminal use's that speech business is connected voice signal to described local double-standby terminal with this terminal, to this terminal use output from described local double-standby terminal with set up another terminal use's that speech business is connected voice signal with this terminal, to described another terminal use send from described local double-standby terminal and with this terminal use's voice signal.
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| CN200910057384XA CN101909263A (en) | 2009-06-08 | 2009-06-08 | Method for realizing three-way call or conference call and dual-standby terminal |
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| CN200910057384XA CN101909263A (en) | 2009-06-08 | 2009-06-08 | Method for realizing three-way call or conference call and dual-standby terminal |
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