CN106550158A - Voice call method and device - Google Patents

Abstract

The invention provides a kind of voice call method and device, wherein, the voice call method includes：Determine the secondary signal value of first signal value and the second community adjacent with the first community of the first community that terminal is currently located；Method of calling is determined according to the first signal value and secondary signal value, and determines that terminal initiates the calling cell of audio call from first community and second community；Using determine method of calling it is determined that calling cell on initiate audio call.By the present invention, terminal can select the preferable current area of quality or adjacent area to initiate audio call, support that the terminal of VoLTE can directly initiate PS call when voice call is carried out when signal quality is poor in solving the problems, such as correlation technique, and then reached the speech quality for terminal being improved when audio call is initiated, improve the Experience Degree of user.

Description

Voice call method and device

Technical field

The present invention relates to the communications field, in particular to a kind of voice call method and device.

Background technology

Circuit domain dropping (Circuit Switched FallBack, referred to as CSFB) is in endpoint registration to Long Term Evolution (Long Term Evolution, referred to as LTE) network when, terminal can fall back to circuit domain (Circuit Switching by CSFB Domain, referred to as CS domains) carry out the CS business such as voice service.

Speech business (Voice over LTE, referred to as VoLTE) based on Long Term Evolution is a kind of IP data transmission technologies, it Without the need for 2G/3G nets, by whole service bearers on 4G networks.When terminal supports VoLTE, terminal can pass through LTE and net Border agreement (Internet Protocol, referred to as IP) IP multimedia subsystem, IMS (IP Multimedia Subsystem, referred to as IMS) Packet switched call (Packet Switch Call, referred to as PS Call) is directly initiated, and data is capable of achieving with speech business same Unification under network (i.e. LTE network).

As current Ge great operators are for LTE/IMS network design well afoots, so occurring that some areas are disposed LTE/IMS, but some LANs only support CSFB.Therefore in order to realize UE in LTE/Pre-LTE networks and 2G/3G Ensure when moving between CS networks IP that UE control in IMS carry (Voice Over IP, referred to as VoIP) voice with Taking over seamlessly between the voice of CS domains, and third generation partner program (3rd Generation Partnership Project, referred to as Double-mode single-standby wireless voice call seriality (Single Radio Voice Call Continuity, referred to as SRVCC) is proposed 3GPP) Technology.When user is being carried out in voice call process using LTE network, it is weaker to move to LTE signals, but GERAN/UTRAN network signals cover preferable region when, in order to ensure continuous voice call (Voice Call Continuity, Referred to as VCC), need for speech channel to be switched to global system for mobile communications (Global System for Mobile by LTE Communication, referred to as GSM) the general GSM of/enhanced data rates (Enhanced Data Rate for GSM Evolution, referred to as EDGE) evolution access network (GSM/EDGE Radio Access, referred to as GERAN)/general land Wireless access network (Universal Terrestrial Radio Access Network, referred to as UTRAN).Due to there is presently no energy Enough terminals for adhering to simultaneously transceiving data in LTE and GERAN/UTRAN simultaneously, therefore the business before LTE and 2G/3G Seriality is all based on double-mode single-standby (Single Radio) pattern.

The current bimodulus or multimode terminal with LTE and UTRAN/GERAN access capabilities mainly by CSFB and Two kinds of technologies of VoLTE carry out voice call.CSFB mainly provides voice by 2/3G circuit domains, and VOLTE schemes pass through IMS To realize the audio call of LTE packet domains and be taken over seamlessly ensureing voice by SRVCC functions.It is right in current 3GPP agreements LTE call when do not judged, or but determine that it is to carry out PS call before a call, or be directly pass through CSFB CS call are carried out to 2G/3G.

Although SRVCC can ensure that terminal taking over seamlessly between the VoIP voices and CS domains voice that IMS is controlled, but front The condition of carrying is to first have to PS Call are carried out on LTE.If the user while during initiation PS call, LTE signals are just very weak on LTE, Now need first to set up PS Call and then UTRAN/GERAN networks are changed to by SRVCC again.When LTE signals are very weak Setting up PS call business obviously can affect the efficiency of voice connection and the quality of voice call.

Terminal for supporting VoLTE in correlation technique can directly initiate PS call when voice call is carried out when signal quality is poor Problem, not yet propose solution at present.

The content of the invention

The invention provides a kind of voice call method and device, at least to solve the terminal that VoLTE is supported in correlation technique in letter Can directly be initiated when voice call is carried out when number second-rate the problem of PS call.

According to an aspect of the invention, there is provided a kind of voice call method, including：Determine that terminal is currently located first is little The secondary signal value of first signal value and the second community adjacent with the first community in area；According to first signal value and institute State secondary signal value and determine method of calling, and determine that the terminal initiates voice from the first community and the second community The calling cell of calling；Using determine the method for calling it is determined that the calling cell on initiate audio call.

Alternatively, the method for calling is determined according to first signal value and the secondary signal value, and it is little from described first Determine in area and the second community that the terminal is initiated the calling cell of audio call and included：Whether judge first signal value More than or equal to first threshold；When it is determined that first signal value is more than or equal to the first threshold, determine with based on length The speech business VoLTE of phase evolution initiates audio call in the first community.

Alternatively, after judging first signal value whether more than or equal to the first threshold, also include：It is determined that institute When stating the first signal value less than the first threshold, judge to whether there is the 3rd cell in the second community, wherein, described the The signal value of three cells is more than or equal to Second Threshold；In the presence of judged result is, when the 3rd cell is LTE During cell, audio call is initiated in the 3rd cell using VoLTE, or when the 3rd cell is universal mobile communications system System grounding wireless access network UTRAN cells or UMTS/enhanced data rates UMTS evolution During access network GERAN cell, audio call is initiated using circuit domain dropping CSFB in the 3rd cell.

Alternatively, also include with the presence or absence of after the 3rd cell in the second community is judged：When judged result is not for In the presence of, judge whether the terminal resides in the first community；Reside in for the terminal in judged result described In the case of first community, determine with VoLTE and audio call is initiated in the first community；It it is the end in judged result In the case that end is not resident in the first community, determine that audio call fails.

Alternatively, include with the presence or absence of the 3rd cell in judging the second community：It is each little according to the second community The priority in area order from high to low, is more than or equal to Second Threshold with the presence or absence of signal value in judging the second community successively Cell, wherein, LTE native region priority highests, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum； In the case of being the presence of cell of the signal value more than or equal to the Second Threshold in judged result, deposit in determining the second community In the 3rd cell；In the case of being not the presence of cell of the signal value more than or equal to the Second Threshold in judged result, really There is no the 3rd cell in the fixed second community.

Alternatively, when there is LTE cells in the second community, the Second Threshold is each letter being determined as follows Number value in maximum：LTE cells in the second community are different with frequency or priority identical with the first community In the case of frequency cell, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met；Described second In the case of priority of the priority of the LTE cells in cell higher than the first community, LTE cell re-selection conditions are met The signal value of the LTE cells in the second community；The priority of the LTE cells in the second community is little less than described first In the case of the priority in area, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met.

According to another aspect of the present invention, a kind of voice calling device is additionally provided, including：First determining module, for true Determine the secondary signal value of first signal value and the second community adjacent with the first community of the first community that terminal is currently located； Second determining module, for determining method of calling according to first signal value and the secondary signal value, and from described first Determine in cell and the second community that the terminal initiates the calling cell of audio call；Calling module, for utilizing what is determined The method of calling it is determined that the calling cell on initiate audio call.

Alternatively, second determining module includes：First judging unit, for judge first signal value whether be more than or Equal to first threshold；First determining unit, for it is determined that first signal value be more than or equal to the first threshold when, really Fixed utilization initiates audio call based on the speech business VoLTE of Long Term Evolution in the first community.

Alternatively, second determining module also includes：Second judging unit, for judging described in first judging unit After whether the first signal value is more than or equal to the first threshold, when it is determined that first signal value is less than the first threshold, Whether there is the 3rd cell in judging the second community, wherein, the signal value of the 3rd cell is more than or equal to Second Threshold； Second determining unit, in the presence of in the judged result of second judging unit being, when the 3rd cell is LTE During cell, audio call is initiated in the 3rd cell using VoLTE, or when the 3rd cell is universal mobile communications system System grounding wireless access network UTRAN cells or UMTS/enhanced data rates UMTS evolution During access network GERAN cell, audio call is initiated using circuit domain dropping CSFB in the 3rd cell.

Alternatively, second determining module also includes：3rd judging unit, for judging described in second judging unit With the presence or absence of after the 3rd cell in second community, in the case of the judged result of second judging unit is non-existent, Judge whether the terminal resides in the first community；3rd determining unit, ties for the judgement in the 3rd judging unit In the case that fruit resides in the first community for the terminal, determine with VoLTE voice is initiated in the first community and exhale Cry；4th determining unit is little for being not resident in described first for the terminal in the judged result of the 3rd judging unit In the case of area, determine that audio call fails.

Alternatively, second judging unit includes：Judgment sub-unit, for the excellent of each cell according to the second community First level order from high to low, is more than or equal to the cell of Second Threshold with the presence or absence of signal value in judging the second community successively, Wherein, LTE native region priorities highest, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum；First determines Subelement, for the judged result of the judgment sub-unit be exist signal value more than or equal to the Second Threshold cell In the case of, there is the 3rd cell in determining the second community；Second determination subelement, in the judgment sub-unit Judged result be do not exist signal value more than or equal to the Second Threshold cell in the case of, in determining the second community There is no the 3rd cell.

Alternatively, described device also includes：3rd determining module, for when there is LTE cells in the second community, inciting somebody to action Maximum in each signal value being determined as follows is defined as the Second Threshold：LTE in the second community is little In the case that first community described in Qu Weiyu is with frequency or priority identical alien-frequency district, the institute of LTE cell re-selection conditions is met State the signal value of the LTE cells in second community；The priority of the LTE cells in the second community is higher than the first community Priority in the case of, meet the signal value of the LTE cells in the second community of LTE cell re-selection conditions；Described In the case of priority of the priority of the LTE cells in two cells less than the first community, LTE cell re-selection conditions are met The second community in LTE cells signal value.

By the present invention, using the first signal value for determining first community that terminal is currently located and adjacent with the first community The secondary signal value of second community；Method of calling is determined according to first signal value and the secondary signal value, and from described Determine in first community and the second community that the terminal initiates the calling cell of audio call；Using the MPTY for determining Formula it is determined that the calling cell on initiate audio call mode, before audio call is carried out, be currently located by terminal Cell and adjacent area signal quality, select the preferable current area of quality or adjacent area to initiate audio call, without simply Calling is initiated using VoLTE in current area, in solving correlation technique, supports that the terminal of VoLTE is entered when signal quality is poor The problem of PS call can be directly initiated during row voice call, and then has reached the speech quality for terminal being improved when audio call is initiated, Improve the Experience Degree of user.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the present invention's shows Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the flow chart of voice call method according to embodiments of the present invention；

Fig. 2 is the structured flowchart of voice calling device according to embodiments of the present invention；

Fig. 3 is the structured flowchart one of the second determining module 24 in voice calling device according to embodiments of the present invention；

Fig. 4 is the structured flowchart two of the second determining module 24 in voice calling device according to embodiments of the present invention；

Fig. 5 is the structured flowchart three of the second determining module 24 in voice calling device according to embodiments of the present invention；

Fig. 6 is the structured flowchart of the second judging unit 42 in voice calling device according to embodiments of the present invention；

Fig. 7 is the preferred structure block diagram of voice calling device according to embodiments of the present invention；

Fig. 8 is that terminal applies layer according to embodiments of the present invention arranges object diagram；

Fig. 9 is the flow chart of the decision method for carrying out LTE audio call modes according to embodiments of the present invention；

Figure 10 is the flowchart of LTE audio call decision method steps S912 according to embodiments of the present invention.

Specific embodiment

Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the case where not conflicting, The feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, " second " etc. are to use In the similar object of difference, without being used to describe specific order or precedence.

A kind of voice call method is provided in the present embodiment, and Fig. 1 is the stream of voice call method according to embodiments of the present invention Cheng Tu, as shown in figure 1, the flow process comprises the steps：

Step S102, determines first signal value and the second community adjacent with the first community of the first community that terminal is currently located Secondary signal value；

Step S104, determines method of calling according to the first signal value and secondary signal value, and from first community and second community Determine that terminal initiates the calling cell of audio call；

Step S106, using determine method of calling it is determined that calling cell on initiate audio call.

By above-mentioned steps, before audio call is carried out, terminal can according to the signal value of the cell and adjacent area being currently located, The preferable current area of one signal quality of selection or adjacent area carry out the initiation of audio call, rather than simply in current area Middle signal quality still initiates audio call when poor, supports the terminal of VoLTE when signal quality is poor in solving correlation technique The problem of PS call can be directly initiated when carrying out voice call, and then has reached the call matter for terminal being improved when audio call is initiated Amount, improves the Experience Degree of user.

Step S104 has various implementations, and for example, terminal can be according to the of the first signal value of first community and second community The size of binary signal value, the first larger cell of selection signal value are judged.In an optional embodiment, can take Following manner is realized：Judge the first signal value whether more than or equal to first threshold；It is determined that the first signal value is more than or equal to institute When stating first threshold, determine with VoLTE and audio call is initiated in first community.In the alternative embodiment, when terminal exists Before initiating audio call, whether terminal preferentially judges the signal value of the cell that the terminal is currently located more than or equal to first threshold, And in judged result in the case of being, to initiate audio call in current LTE cell using VoLTE.Such that it is able to existing In the case of agreement or standard change are less, realize that terminal initiates audio call in the case of signal quality is preferable.Wherein, First threshold can be rationally arranged by related personnel according to practical situation.

In an optional embodiment, after judging the first signal value whether more than or equal to first threshold, also include： When determining that the first signal value is less than first threshold, in judging second community, whether there is the 3rd cell, wherein, the 3rd cell Signal value is more than or equal to Second Threshold；In the presence of judged result is, when the 3rd cell is LTE cells, utilize VoLTE initiates audio call in the 3rd cell, or when the 3rd cell is UTRAN cells or GERAN cells, utilizes CSFB initiates audio call in the 3rd cell.In the alternative embodiment, the number of cells included in second community can be many It is individual, that is, the first community that the terminal is located possesses multiple adjacent areas.The cell type included in second community can also be it is various, For example, can be LTE cells, UTRAN/GERAN cells.Can not be sent out by VoLTE in first community when terminal determines After playing audio call, will be judged according to the secondary signal value of second community：It is more than or equal to second in the secondary signal value In the case of threshold value, terminal determines there is the 3rd cell for meeting initiation audio call.It is for different types of 3rd cell, right Different method of callings are answered, for example, when the 3rd cell is LTE cells, initiates to call using VoLTE, when the 3rd cell For UTRAN/GERAN cells when, using CSFB initiate call.

In an optional embodiment, with the presence or absence of after the 3rd cell in second community is judged, also include：When judgement knot In the case of fruit is non-existent, judge whether terminal resides in the first community；First is resided in for terminal in judged result little In the case of area, determine with VoLTE and audio call is initiated in first community；Is not resident in for terminal in judged result In the case of one cell, determine that audio call fails.In the alternative embodiment, terminal finds that after judgement the terminal is current In the first community and adjacent area second community at place, there is no the cell for meeting signal value threshold condition, terminal now judges this Whether terminal also resides in first community, in the case of it is determined that terminal is not resident in first community, illustrates that the terminal has been broken Open LTE network connection, audio call failure；When terminal, now also note stays in first community, illustrates simply first community and adjacent area The signal quality of second community is all bad, and terminal now selects to initiate audio call based on VoLTE in first community.

In an optional embodiment, the cell as each type is there may be in second community, such as LTE cells, UTRAN cells or GERAN cells, can include with the presence or absence of the 3rd cell in judging second community：According in second community Each cell priority order from high to low, be more than or equal to the second threshold with the presence or absence of signal value in judging second community successively The cell of value, wherein, LTE native region priority highests, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum； In the case of being the presence of cell of the signal value more than or equal to Second Threshold in judged result, have the 3rd in determining second community little Area；In the case of being not the presence of cell of the signal value more than or equal to Second Threshold in judged result, do not deposit in determining second community In the 3rd cell.In the alternative embodiment, priority of the terminal according to each cell in second community, the signal value to each cell Judged, wherein, LTE native region priority highests, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum. As LTE cells are to develop adjacent cell the most advanced, judged according to the priority orders in the alternative embodiment, can be with Ensure that terminal initiates audio call in good, the relatively advanced cell of signal quality.Certainly, if there is no LTE in second community If cell, terminal will skip LTE cells, the signal value of UTRAN cells be judged according to priority orders.

Above in each embodiment, first threshold and Second Threshold can be that related personnel is rationally arranged according to practical situation, and And during the type difference of each cell, the Second Threshold of each cell can also be not quite similar.In an optional embodiment, When there is LTE cells in second community, Second Threshold can be the maximum in each signal value being determined as follows： It is, with frequently or in the case of priority identical alien-frequency district, to meet LTE with first community in the LTE cells in second community The signal value of the LTE cells in the second community of cell re-selection conditions；The priority of the LTE cells in second community is higher than first In the case of the priority of cell, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met；Second is little In the case of priority of the priority of the LTE cells in area less than first community, meet LTE cell re-selection conditions second is little The signal value of the LTE cells in area.Adjacent area LTE cells as with first community type identical cell, to not only meet letter Number value condition, in addition it is also necessary to meet LTE cells with frequency or alien-frequency district gravity treatment condition.In the optional embodiment, the Two threshold values are the maximum of the signal value of LTE cells in the second community calculated under three cases above, so no matter second is little LTE cells in area are frequency identical from first community priority or different, same or alien frequencies, can meet LTE cell weights Condition is selected, such that it is able to ensure that terminal initiates the success rate of audio call to a certain extent.

Through the above description of the embodiments, those skilled in the art can be understood that the side according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases before Person is more preferably embodiment.Based on such understanding, technical scheme substantially makes tribute to prior art in other words The part offered can be embodied in the form of software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD) in, use so that a station terminal equipment including some instructions (can be mobile phone, computer, Server, or the network equipment etc.) perform method described in each embodiment of the invention.

A kind of voice calling device is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred implementation, Repeating no more for explanation was carried out.As used below, term " module " can realize predetermined function software and/or The combination of hardware.Although the device described by following examples is preferably with software realizing, hardware, or software and hard The realization of the combination of part is also what is may and be contemplated.

Fig. 2 is the structured flowchart of voice calling device according to embodiments of the present invention, as shown in Fig. 2 the device includes that first is true Cover half block 22, the second determining module 24 and calling module 26, are illustrated to the device below.

First determining module 22, for determining the first signal value of first community that terminal is currently located and adjacent with first community The secondary signal value of second community；Second determining module 24, is connected to above-mentioned first determining module 22, for according to the first signal Value and secondary signal value determine method of calling, and determine that from first community and second community terminal initiates the calling of audio call Cell；Calling module 26, is connected to above-mentioned second determining module 24, for utilize determine method of calling it is determined that calling it is little Audio call is initiated in area.

Fig. 3 is the structured flowchart one of the second determining module 24 in voice calling device according to embodiments of the present invention, as shown in figure 3, Second determining module 24 includes the first judging unit 32 and the first determining unit 34, and below second determining module 24 is carried out Explanation.

First judging unit 32, for judging the first signal value whether more than or equal to first threshold；First determining unit 34, even The first judging unit 32 is connected to, for VoLTE when it is determined that the first signal value is more than or equal to first threshold, being determined with the Audio call is initiated in one cell.

Fig. 4 is the structured flowchart two of the second determining module 24 in voice calling device according to embodiments of the present invention, as shown in figure 4, Second determining module 24 in addition to including all units in Fig. 3, also including the second judging unit 42 and the second determining unit 44, below second determining module 24 is illustrated.

Second judging unit 42, is connected to above-mentioned first judging unit 32, for judging the first signal in the first judging unit 32 Whether whether value, judged in second community more than or equal to after first threshold when it is determined that the first signal value is less than first threshold There is the 3rd cell, wherein, the signal value of the 3rd cell is more than or equal to Second Threshold；Second determining unit 44, is connected to The second judging unit 42 is stated, in the presence of in the judged result of the second judging unit 42 being, when the 3rd cell is LTE During cell, audio call is initiated in the 3rd cell using VoLTE, or when the 3rd cell is UTRAN cells or GERAN During cell, audio call is initiated using CSFB in the 3rd cell.

Fig. 5 is the structured flowchart three of the second determining module 24 in voice calling device according to embodiments of the present invention, as shown in figure 5, Second determining module 24 in addition to including all units in Fig. 4, also including the 3rd judging unit 52, the 3rd determining unit 54 and the 4th determining unit 56, below second determining module 24 is illustrated.

3rd judging unit 52, is connected to above-mentioned second judging unit 42, for judging second community in the second judging unit 42 In with the presence or absence of after the 3rd cell, and judged result is in the case of non-existent, to judge whether terminal resides in first community； 3rd determining unit 54, is connected to above-mentioned 3rd judging unit 52, is terminal for the judged result in the 3rd judging unit 52 In the case of residing in first community, determine with VoLTE and audio call is initiated in first community；4th determining unit 56, Above-mentioned 3rd judging unit 52 is connected to, for being not resident in first community for terminal in the judged result of the 3rd judging unit 52 In the case of, determine that audio call fails.

Fig. 6 is the structured flowchart of the second judging unit 42 in voice calling device according to embodiments of the present invention, as shown in fig. 6, Second judging unit 42 includes judgment sub-unit 62, the first determination subelement 64 and the second determination subelement 66, below to this Second judging unit 42 is illustrated.

Judgment sub-unit 62, for the priority order from high to low of each cell according to second community, judges second successively It is more than or equal to the cell of Second Threshold in cell with the presence or absence of signal value, wherein, LTE native region priority highests, UTRAN are little Area's priority is placed in the middle, and GERAN native region priorities are minimum；First determination subelement 64, is connected to above-mentioned judgment sub-unit 62, In the case of being the presence of cell of the signal value more than or equal to Second Threshold in the judged result of judgment sub-unit 62, the is determined There is the 3rd cell in two cells；Second determination subelement 66, is connected to above-mentioned judgment sub-unit 62, in judgment sub-unit 62 judged result be do not exist signal value more than or equal to Second Threshold cell in the case of, do not exist in determining second community 3rd cell.

Fig. 7 is the preferred structure block diagram of voice calling device according to embodiments of the present invention, as shown in fig. 7, the device is except bag Include outside all modules in Fig. 4, also including the 3rd determining module 72, below the device is illustrated.

3rd determining module 72, is connected to the second judging unit 42, for when there is LTE cells in second community, by such as Maximum in each signal value that under type determines is the Second Threshold：LTE cells in second community are with to state first little In the case that area is with frequency or priority identical alien-frequency district, the LTE met in the second community of LTE cell re-selection conditions is little The signal value in area；In the case of priority of the priority of the LTE cells in second community higher than first community, LTE is met little The signal value of the LTE cells in the second community of area's reselection conditions；The priority of the LTE cells in second community is little less than first In the case of the priority in area, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met.

It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, can by with Under type is realized, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module is located at multiple places respectively In reason device.

With reference to environment is embodied as, the voice call method and device of the embodiment of the present invention are illustrated.

In correlation technique, although SRVCC can ensure that terminal is flat between the VoIP voices and CS domains voice that IMS is controlled Sliding cutting is changed, but precondition is to first have to PS Call are carried out on LTE.If the user while LTE during PS call is initiated on LTE Signal is just very weak, now needs first to set up PS Call and then changes to UTRAN/GERAN networks by SRVCC again.Work as LTE PS call business is set up when signal is very weak obviously can affect the efficiency of voice connection and the quality of voice call.

First below the voice calling device of the embodiment of the present invention is illustrated.Voice calling device in the embodiment is located at eventually In end, realized by terminal higher device and bottom wireless protocols technology.The embodiment of the present invention with support LTE and As a example by the bimodulus or multimode terminal of UTRAN/GERAN access capabilities, and terminal supports VoLTE, CSFB function simultaneously.

The embodiment of the present invention terminal upper strata call arrange in comprising 4G call arrange, 4G call arrange in comprising VoLTE, CSFB function menus are selected, and in the embodiment of the present invention, voice calling device allows terminal to select VoLTE and CSFB simultaneously, and permits Perhaps terminal enables the device automatically.

According to foregoing description, the method for present embodiments providing the setting of terminal upper strata, Fig. 8 is terminal according to embodiments of the present invention Application layer arranges object diagram, by taking the function of manually selecting the device as an example, as shown in figure 8, being specially：

Object 1：Android system call increases 4G call functions in arranging interface and arranges；

Object 2：Call function is arranged includes that VoLTE is preferential, CSFB preferential, while using VoLTE and CSFB.

Function declaration is carried out to the respective option that the call function is arranged below.

VoLTE is preferential：Present terminal is registered in LTE network, if choosing VoLTE preferentially, preferentially use VoLTE dialing Audio call is carried out, i.e., directly carries out PS Call；

CSFB is preferential：If it is preferential to choose CSFB, directly falling back to UTRAN/GERAN networks carries out the voice in CS domains Call；

VoLTE and CSFB is used simultaneously：If choosing while using VoLTE and CSFB, terminal to start to measure and safeguard one The storage table of neighboring area signal value, for storing the signal value of the adjacent area measured after the device starts.Then by the present invention Radio protocol layer audio call decision method judged, carries out audio call using optimum audio call mode.

In the embodiment of the present invention, if choosing while using VoLTE and CSFB, terminal needs to safeguard depositing for a neighboring area signal value Storage table, for storing the signal value of the adjacent area measured after the device starts.Terminal, can be to current after LTE cells are registered to LTE cells and the signal value of adjacent area, such as Reference Signal Received Power (Reference Signal Receiving Power, referred to as RSRP), measure, and the value after measurement is stored in above-mentioned storage table.Hereafter, terminal is specified always to current with predetermined The RSRP of LTE cells and adjacent area is measured, and to storage table in the RSRP values of individual cell be updated.

Certainly, it is to lift Consumer's Experience, the mode for starting the device may also be employed automatic mode.When terminal LTE signals compared with VoLTE preferential modes are automatically selected when strong；When terminal LTE network is unstable but UTRAN/GERAN signals are stronger, The mode of CSFB can be automatically selected；If terminal needs the Jing often can be automatic in LTE and UTRAN/GERAN moving between cells Enable the device.

The embodiment of the present invention also describes a kind of LTE audio calls mode (i.e. the voice call method of the above embodiment of the present invention) Decision method：Terminal is judged using VoLTE still according to the signal threshold values of Serving cell and adjacent area after dialing is initiated CSFB carries out voice call, specially：

1., if current LTE serving cell signals value is more than a certain threshold values, audio call is carried out using VoLTE functions；

If 2. current service cell signal value is less than a certain threshold values, terminal measures according to the order of LTE/UTRAN/GERAN to survey Amount adjacent area；

3., if neighboring area signal value is higher than a certain threshold values, audio call is initiated on adjacent area；

4., according to the standard of adjacent area determining method of calling, audio call is carried out using VoLTE functions if adjacent area is LTE cells, If adjacent area is UTRAN/GERAN cells, audio call is initiated by the way of CSFB.

Below by above-mentioned LTE audio calls mode, and it is embodied as environment and combines illustrating.

If terminal upper strata determines having chosen while using VoLTE and CSFB, then it represents that enable the voice calling device, in LTE Initiate to need to notify the configuration of network sending measuring during registration, so as to terminal starts to measure the signal value of Serving cell and adjacent area, terminal The mode of audio call is judged according to the signal value for measuring.Fig. 9 is to carry out LTE audio call sides according to embodiments of the present invention The flow chart of the decision method of formula, as shown in figure 9, the decision method comprises the steps：

Step S902：Terminal initiates LTE network registration；

Step S904：Terminal is by the device information comprising transmission in download (Over the Air, referred to as OTA) message in the air To network, tell that network lateral terminal has enabled the device；

Step S906：After network side receives the OTA information and confirm that terminal has enabled the device, then passed through by eNB The measConfig cells of RRCConnectionReconfigurtion message bands will measure configuration message informing to UE；

Step S908：Terminal starts to perform measurement, and terminal measures current LTE Serving cells, the RSRP values of adjacent area；It is wherein adjacent Area includes LTE cells, UTRAN cells, GERAN cells.Wherein the RSRP values of current service cell are S1, and LTE is adjacent The RSRP values in area are S2, and the signal value of UTRAN adjacent areas is S3, and the signal value of GERAN cells is S4；

Step S910：Terminal is stored in measurement result in the neighboring area signal value table storage of terminal maintenance；

Step S912：Serving cell that terminal is measured according to this, the signal value of adjacent area are judging audio call mode.

In this alternative embodiment, terminal is how to carry out voice call method judgement, can have various implementations.Below For the implementation of step S912 is illustrated.Figure 10 is LTE audio calls judgement side according to embodiments of the present invention The flowchart of method step S912, as shown in Figure 10, step S912 comprises the following steps：

Step S1002：Terminal initiates audio call；

Step S1004：If the RSRP values (the first signal value in S1, i.e. above-described embodiment) of current LTE Serving cells are big In equal to a certain threshold values (first threshold of Ss_Lcell, i.e. above-described embodiment), terminal carries out audio call using VoLTE functions, PS call flow processs are now carried out；

Step S1006：If the RSRP values (S1) of current LTE Serving cells are less than Ss_cell, and LTE neighboring area signal values (S2, I.e. the second community of above-described embodiment is the Second Threshold of LTE cells) more than Sn_Lcell, then now terminal reselects to adjacent LTE Cell simultaneously initiates VoLTE audio calls on LTE adjacent areas；

Step S1008：If LTE neighboring area signal values (S2) is less than Sn_Lcell, and UTRAN neighboring area signal values are more than or equal to Sn_Ucell (Second Threshold of the second community for UTRAN cells i.e. in above-described embodiment), then terminal is returned using CSFB technologies Falling UTRAN networks carries out audio call；

Step S1010：If UTRAN neighboring area signals value is less than Sn_Ucell, and GERAN neighboring area signal values are more than or equal to Sn_Gcell (Second Threshold of the second community for GERAN cells i.e. in above-described embodiment), then terminal is returned using CSFB technologies Falling GERAN networks carries out audio call；

Step S1012：If GERAN neighboring area signals value is less than greatly Sn_Gcell, terminal proceeds to judge that now terminal is still The LTE network is resided in, then terminal initiates VoLTE audio calls, otherwise call failure in current service cell.

There are following several threshold values, wherein Ss_Lcell, Sn_Lcell, Sn_Ucell and Sn_Gcell, Ss_Lcell in the above-mentioned methods For judging current LTE serving cell signals value, Sn_Lcell is used for the signal value for judging LTE adjacent areas, and Sn_Ucell is used for sentencing Determine the signal value of UTRAN adjacent areas, Sn_Gcell is used for the signal value for judging GERAN adjacent areas.

Below, for how determining that Ss_Lcell, Sn_Lcell, Sn_Ucell and Sn_Gcell are illustrated.

Illustrate firstly, for the determination process of Sn_Lcell.

Sn_Lcell：Sn_Lcell and Ss_Lcell are the signal threshold values for LTE cells, but Sn_Lcell is except meeting Outside the value condition (according to the signal quality of cell come value) of Ss_Lcell, in addition it is also necessary to 3GPP LTE are met with frequency or different The condition of frequency gravity treatment.

(1) if with frequency or the alien-frequency district gravity treatment of priority identical, then according to R criterions judging reselection conditions, i.e. Rn>Rs As long as S2 is more than S1；

According to cell selection criterion, i.e. Srxlev ＞ 0, Srxlev computing formula are as follows：

Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation；

Wherein Qrxlevmeas values are our S1 as defined above or S2；

(2) if adjacent area is the high cell of priority, as long as then meeting adjacent area Srxlev more than threshold parameter threshXHigh i.e. Can, therefore S2 needs more than threshold parameter threshXHigh-Qrxlevmin-Pcompensation that (wherein threshXHigh exists Defined in SIB3)；

(3) if adjacent area is the low cell of priority, then the Srxlev of current service cell is less than threshServingLow, and And the Srxlev of Target cell is more than threshold parameter threshXLow；Because in the state of this decision method considers, i.e. S1 values are little In threshServingLow-Qrxlevmin-Pcompensation, the signal value S1 of current service cell is greater than Ss_Lcell , the value of threshServingLow is it is noted that be more than (Ss_Lcell+Qrxlevmin+Pcompensation)/2；Now S2 is big In threshXLow-Qrxlevmin-Pcompensation；

To sum up three kinds of situations (1) (2) (3), S2 need to meet following three kinds of situations and gravity treatment can just occur：

(1)S2>S1；

(2)S2>threshXHigh-Qrxlevmin-Pcompensation；

(3)S2>threshXLow-Qrxlevmin-Pcompensation；

And the method in the embodiment of the present invention needs to judge S2>Sn_Lcell, therefore in order to both meet reselection conditions, this is met again The decision condition of inventive embodiments, Sn_Lcell values are maximum in as above three kinds of situations (1) (2) (3).That is, Sn_Lcell=max (S1, threshXHigh-Qrxlevmin-Pcompensation, threshXLow-Qrxlevmin-Pcompensation)。

Again the determination process of Ss_Lcell/Sn-Ucell/Sn-Gcell is illustrated below.

Ss_Lcell/Sn-Ucell/Sn-Gcell：The purpose of the application is desirable to when LTE cell signal qualities are very weak, and When UTRAN/GERAN cell signal qualities are preferable, ability ensures voice call quality using CSFB, therefore for Ss_Lcell The threshold values of/Sn-Ucell/Sn-Gcell comes not according to reselection conditions, but is taken according to UTRAN/GERAN cell signal qualities Value；Therefore Ss_Lcell value weak signal values, Sn-Ucell/Sn-Gcell then can the strong signal value of value.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can be by It is set to store the program code for being used to performing following steps：

S1, determine the first community that terminal is currently located the first signal value and the second community adjacent with the first community second Signal value；

S2, determines method of calling according to the first signal value and secondary signal value, and determines eventually from first community and second community Initiate the calling cell of audio call in end；

S3, using determine method of calling it is determined that calling cell on initiate audio call.

Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read only memory (Read-Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard Disk, magnetic disc or CD etc. are various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor performs above-mentioned S1-S3 according to the program code for having been stored in storage medium.

Alternatively, the specific example in the present embodiment may be referred to the example described in above-described embodiment and optional embodiment, The present embodiment will not be described here.

Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general calculating Realizing, they can concentrate on single computing device device, or be distributed on the network constituted by multiple computing devices, Alternatively, they can be realized with the executable program code of computing device, it is thus possible to be stored in storage device In by computing device performing, and in some cases, can be performing shown or described step different from order herein Suddenly, each integrated circuit modules or by them is fabricated to respectively, or the multiple modules or step in them is fabricated to single Integrated circuit modules are realizing.So, the present invention is not restricted to any specific hardware and software combination.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art For, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, etc. With replacement, improvement etc., should be included within the scope of the present invention.

Claims (12)

1. a kind of voice call method, it is characterised in that include：

Determine the first signal value of the first community that terminal is currently located and adjacent with the first community second little The secondary signal value in area；

Method of calling is determined according to first signal value and the secondary signal value, and from the first community and Determine in the second community that the terminal initiates the calling cell of audio call；

Using determine the method for calling it is determined that the calling cell on initiate audio call.

2. method according to claim 1, it is characterised in that according to first signal value and the secondary signal value Determine the method for calling, and determine that the terminal initiates voice from the first community and the second community The calling cell of calling includes：

Judge first signal value whether more than or equal to first threshold；

When it is determined that first signal value is more than or equal to the first threshold, determine with based on Long Term Evolution Speech business VoLTE initiates audio call in the first community.

3. method according to claim 2, it is characterised in that judging whether first signal value is more than or equal to After the first threshold, also include：

When it is determined that first signal value is less than the first threshold, judge to whether there is in the second community the Three cells, wherein, the signal value of the 3rd cell is more than or equal to Second Threshold；

In the presence of judged result is, when the 3rd cell is LTE cells, using VoLTE in institute State the 3rd cell and initiate audio call, or when the 3rd cell is accessed for UMTS terrestrial wireless Net UTRAN cells or UMTS/enhanced data rates UMTS evolution access network During GERAN cells, audio call is initiated using circuit domain dropping CSFB in the 3rd cell.

4. method according to claim 3, it is characterised in that with the presence or absence of described the in the second community is judged After three cells, also include：

In the case of judged result is non-existent, judge whether the terminal resides in the first community；

In the case where judged result resides in the first community for the terminal, VoLTE is determined with described Audio call is initiated in first community；

In the case where judged result is not resident in the first community for the terminal, determine that audio call fails.

5. method according to claim 3, it is characterised in that judge in the second community with the presence or absence of the described 3rd Cell includes：

The priority of each cell according to second community order from high to low, judges that described second is little successively It is more than or equal to the cell of Second Threshold in area with the presence or absence of signal value, wherein, LTE native region priority highests, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum；

In the case of being the presence of cell of the signal value more than or equal to the Second Threshold in judged result, it is determined that described There is the 3rd cell in second community；

In the case of being not the presence of cell of the signal value more than or equal to the Second Threshold in judged result, institute is determined There is no the 3rd cell in stating second community.

6. method according to claim 3, it is characterised in that when there is LTE cells in the second community, institute It is the maximum in each signal value being determined as follows to state Second Threshold：

LTE cells in the second community are little with frequency or priority identical alien frequencies with the first community In the case of area, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met；

It is in the case of priority of the priority of the LTE cells in the second community higher than the first community, full The signal value of the LTE cells in the second community of sufficient LTE cell re-selection conditions；

It is in the case of priority of the priority of the LTE cells in the second community less than the first community, full The signal value of the LTE cells in the second community of sufficient LTE cell re-selection conditions.

7. a kind of voice calling device, it is characterised in that include：

First determining module, for determining the first signal value of first community that terminal is currently located and with described first The secondary signal value of the adjacent second community of cell；

Second determining module, for determining method of calling according to first signal value and the secondary signal value, with And determine that the terminal initiates the calling cell of audio call from the first community and the second community；

Calling module, for using determine the method for calling it is determined that the calling cell on initiate voice exhale Cry.

8. device according to claim 7, it is characterised in that second determining module includes：

First judging unit, for judging first signal value whether more than or equal to first threshold；

First determining unit, for it is determined that first signal value be more than or equal to the first threshold when, it is determined that Audio call is initiated using the speech business VoLTE based on Long Term Evolution in the first community.

9. device according to claim 8, it is characterised in that second determining module also includes：

Second judging unit, for judging whether first signal value is more than or equal in first judging unit After the first threshold, when it is determined that first signal value is less than the first threshold, judge that described second is little Whether there is the 3rd cell in area, wherein, the signal value of the 3rd cell is more than or equal to Second Threshold；

Second determining unit, in the presence of in the judged result of second judging unit being, when described When 3rd cell is LTE cells, audio call is initiated in the 3rd cell using VoLTE, or when described the Three cells are UMTS grounding wireless access network UTRAN cells or UMTS/enhancing During type data rate UMTS evolution access network GERAN cell, existed using circuit domain dropping CSFB Audio call is initiated in 3rd cell.

10. device according to claim 9, it is characterised in that second determining module also includes：

3rd judging unit, for judging in the second community with the presence or absence of described the in second judging unit After three cells, in the case of the judged result of second judging unit is non-existent, judge that the terminal is It is no to reside in the first community；

3rd determining unit, for residing in described for the terminal in the judged result of the 3rd judging unit In the case of one cell, determine with VoLTE and audio call is initiated in the first community；

4th determining unit, for being not resident in institute for the terminal in the judged result of the 3rd judging unit In the case of stating first community, determine that audio call fails.

11. devices according to claim 9, it is characterised in that second judging unit includes：

Judgment sub-unit, for the priority order from high to low of each cell according to the second community, according to It is secondary judge in the second community with the presence or absence of signal value more than or equal to Second Threshold cell, wherein, LTE is little Area's highest priority, UTRAN native region priorities are placed in the middle, and GERAN native region priorities are minimum；

First determination subelement, for being more than or equal to there is signal value in the judged result of the judgment sub-unit In the case of the cell of the Second Threshold, in determining the second community, there is the 3rd cell；

Second determination subelement, for the judged result of the judgment sub-unit for do not exist signal value be more than or wait In the case of the cell of the Second Threshold, in determining the second community, there is no the 3rd cell.

12. devices according to claim 9, it is characterised in that also include：

3rd determining module, for when there is LTE cells in the second community, being determined as follows Each signal value in maximum be defined as the Second Threshold：

LTE cells in the second community are little with frequency or priority identical alien frequencies with the first community In the case of area, the signal value of the LTE cells in the second community of LTE cell re-selection conditions is met；

It is in the case of priority of the priority of the LTE cells in the second community higher than the first community, full The signal value of the LTE cells in the second community of sufficient LTE cell re-selection conditions；

It is in the case of priority of the priority of the LTE cells in the second community less than the first community, full The signal value of the LTE cells in the second community of sufficient LTE cell re-selection conditions.