CN106341803A - Method for improving call completion ratio of LTE terminal equipment and terminal equipment - Google Patents
Method for improving call completion ratio of LTE terminal equipment and terminal equipment Download PDFInfo
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- CN106341803A CN106341803A CN201610801710.3A CN201610801710A CN106341803A CN 106341803 A CN106341803 A CN 106341803A CN 201610801710 A CN201610801710 A CN 201610801710A CN 106341803 A CN106341803 A CN 106341803A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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Abstract
The invention provides a method for improving a call completion ratio of LTE terminal equipment and the terminal equipment. The method comprises steps that an ESR (Extended Service Request) is sent by a UE resident at the LTE network for requesting to initiate a voice call; a downlink signal sent by network side equipment is received, and the downlink signal contains the information of a target frequency point and adjacent region frequency points of a configured 2G/3G network; if the terminal equipment receives the network obstruction indication information and can not returns to the target frequency point, an adjacent region frequency point of which signal quality satisfies preset conditions is searched; the terminal equipment is resident at the adjacent region frequency point of which signal quality satisfies the preset conditions; the terminal equipment resident at the 2G/3G network re-initiates a voice business request. Through the method, the terminal equipment can be rapidly accessed to an adjacent region GSM network after receiving the network obstruction information, the call completion ratio of the LTE terminal equipment is improved, and an excellent communication effect is guaranteed.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of method of raising lte terminal unit call completion ratio and terminal
Equipment.
Background technology
Because lte is a kind of network formats only supporting data field, when mobile phone needs using voice call function, generally
There are two kinds of solutions, one kind is exactly to walk to carry the volte (voice of voice (voice over ip, abbreviation voip) based on ip
Over lte) technology, another is exactly by circuit domain dropping (circuit switched domain fall back, letter
Claim csfb) technology, allow mobile phone fall back to the 2g/3g network supporting circuit domain completing.
The volte technology based on voip for the former does not all also have commercialization also in starting stage of arranging net, much area.At present
Major part is when with lte mobile phone dialing phone, or the second scheme using, and falls back to 2g/3g by csfb technology
Network is conversed.
Circuit domain dropping is capable of terminal unit under lte access, initiates the circuit switching (circuit such as voice
Switched, abbreviation cs) business, receive the paging of the cs business such as voice, and can be to terminal in Long Term Evolution (long
Term evolution, abbreviation lte) ongoing packet switch (packet switch, abbreviation ps) business under system access
Properly processed.In csfb technology, in double overlay areas of lte and 2g/3g, to speech business, terminal unit can touch
Send out to access from lte and return back to 2g/3g network insertion and carry out cs business.
In the prior art, when user equipment is located at the overlapping covered interior of the network such as 2g, 3g and lte, terminal is in lte
Voice caller or language is initiated to mobile management entity (mobility management entity, abbreviation lte network) under network
During sound paging, by being that lte base station sends expansion service request (extended service request) to lte network, make
Lte network knows that terminal unit will carry out circuit domain business, lte network and then instruction terminal falls back to 2g network or 3g net
Network, after terminal falls back to 2g network or 3g network, to mobile interaction center (mobile switch centre, abbreviation msc)
Initiate access request, whether allow terminal to send out by msc according to the priority of terminal use and the system loading Determines of itself
Play circuit domain business；When terminal is allowed to access, terminal carries out network switching.If now circuit domain system loading is excessive,
Allow to be rejected, network switching failure can be led to, lead to final call failure, but also be likely to result in initiating re-dialing telephone
The situation of failure, leads to Consumer's Experience poor.
Content of the invention
In view of this, the present invention provides a kind of method of raising lte terminal unit call completion ratio and terminal unit, can effectively carry
The call completion ratio of high terminal unit, improves Consumer's Experience.
A kind of first aspect present invention, there is provided method of raising lte terminal unit call completion ratio, the method includes:
Reside at the ue in lte network and send esr (extended service request, expansion service is asked) request
Initiate audio call；
Receive network equipment send downstream signal, this downstream signal carry configuration 2g/3g network objectives frequency and
The information of adjacent area frequency；
If terminal unit receives the configured information of network congestion and can not fall back to described target frequency, searching neighboring area is believed
Number quality meets pre-conditioned frequency；
Described terminal resides in described neighboring cell signal quality and meets pre-conditioned frequency；
Described terminal unit initiates voice service request again in resident 2g/3g network.
Using the method for the offer of first aspect present invention, can terminal unit receive network congestion configured information and not
When can fall back to described target frequency, then searching neighboring area signal quality meets pre-conditioned frequency, and accesses neighboring area signal matter
Amount meets pre-conditioned frequency.
Further, the configured information of described network congestion is #39, described #39 indicating circuit domain core net congestion.Terminal
When equipment receives #39, you can start the frequency of searching neighboring area, so that the adjacent area meeting condition can be quickly linked into.
Further, described pre-conditioned be rsrp (reference signal received power, reference signal
Receiving attack strategy) to be more than default threshold value or rsrp maximum in the frequency of all adjacent areas for value.
Further, if described target frequency is the frequency of 2g network, receive network congestion in described terminal unit
Configured information and when can not fall back to described target frequency, described terminal unit search 3g network neighbor signal quality meets pre-
If the frequency of condition.
Further, if described target frequency is the frequency of 3g network, receive network congestion in described terminal unit
Configured information and when can not fall back to described target frequency, described terminal unit search 2g network neighbor signal quality meets pre-
If the frequency of condition.
A kind of second aspect present invention, there is provided terminal unit, including search module, sending module and receiver module, institute
State search module and for search lte network during described terminal unit start and reside at lte network；Described sending module is used for sending out
Esr (extended service request, expansion service is asked) request is sent to initiate audio call；Described receiver module is used for
Receive the downstream signal that network equipment sends, this downstream signal carries 2g/3g network objectives frequency and the adjacent area frequency of configuration
Information；If terminal unit receives the configured information of network congestion and can not fall back to described target frequency, described search module
It is additionally operable to searching neighboring area signal quality and meets pre-conditioned frequency, so that described terminal resides in described neighboring cell signal quality completely
The pre-conditioned frequency of foot；Described sending module is additionally operable to initiate language again after described terminal unit resides at 2g/3g network
Sound business is asked.
Further, the configured information of described network congestion is #39, described #39 indicating circuit domain core net congestion.
Further, described pre-conditioned be rsrp (reference signal received power, reference signal
Receiving attack strategy) to be more than default threshold value or rsrp maximum in the frequency of all adjacent areas for value.
Further, if described target frequency is the frequency of 2g network, receive network congestion in described terminal unit
Configured information and when can not fall back to described target frequency, described search module is used for searching for 3g network neighbor signal quality full
The pre-conditioned frequency of foot.
Further, if described target frequency is the frequency of 3g network, receive network congestion in described terminal unit
Configured information and when can not fall back to described target frequency, described search module is used for searching for 2g network neighbor signal quality full
The pre-conditioned frequency of foot.
The beneficial effect of technical solution of the present invention at least includes:
Technical solution of the present invention, in circuit domain core net congestion and csfb process network handoff failure, not continues resident
In lte network, but by the circuit-domain network of searching neighboring area, directly suitable cell in searching network is attempted by terminal and carry out
Resident, and initiate to access, to carry out speech business under residing mode.Technical solution of the present invention can reduce and returns to again
Lte network simultaneously sets up the time overhead of esr request, can in the resident period of network switching failure, directly select adjacent area network
Resident, greatly shorten the time delay initiated again required for circuit domain business, improve system response time and build additionally it is possible to improve call
Vertical success rate sets up call required time again it is also possible to shorten, thus improve communication quality and Consumer's Experience.
Brief description
Fig. 1 is a kind of csfb caller signaling process figure；
Fig. 2 is the flow chart of the method that one embodiment of the invention improves lte terminal unit call completion ratio；
Fig. 3 is the flow chart of the method that another embodiment of the present invention improves lte terminal unit call completion ratio；
Fig. 4 is the comprising modules figure of embodiment of the present invention terminal unit；
Fig. 5 is the hardware architecture diagram of embodiment of the present invention terminal unit.
Main element symbol description:
100- terminal unit, 10- search module, 20- sending module, 30- receiver module, 200- terminal unit, 201- deposits
Reservoir, 202- processor.
Specific embodiment
In order that the purpose of the present invention, feature and effect can become apparent from understandable, below in conjunction with the accompanying drawings to the present invention's
Specific embodiment elaborates.
The terminal unit being related in the application, i.e. user equipment (user equipment, ue), can be wireless terminal
Can be catv terminal, wireless terminal may refer to provide a user with the equipment of voice and/or data connectivity, has and wirelessly connects
The portable equipment of connection function or other processing equipments being connected to radio modem.Wireless terminal can be through wirelessly connecing
Networking (radio access network, ran) is communicated with one or more core net, and wireless terminal can be mobile whole
End, such as mobile phone (or referred to as " honeycomb " phone) and the computer with mobile terminal, for example, it may be portable, pocket
Formula, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.Example
As PCS (personal communication service, pcs) phone, wireless phone, Session initiation Protocol
(sip) phone, WLL (wireless local loop, wll) stand, personal digital assistant (personal
Digital assistant, pda) etc. equipment.Wireless terminal is referred to as system, subscri er unit (subscriber
Unit), subscriber station (subscriber station), movement station (mobile station), mobile station (mobile), distant station
(remote station), access point (access point), remote terminal (remote terminal), access terminal
(access terminal), user terminal (user terminal), user agent (user agent), user equipment (user
) or subscriber's installation (user equipment) device.
Circuit domain dropping csfb, is so that terminal can initiate the cs business such as speech business under lte access, and
Receive the paging of the cs business such as voice, and can to terminal in lte network ongoing ps business carry out correctly
Process, create csfb technology.Actual is exactly that audio call is switched to 2g or 3g network.
Building the td-lte network initial stage, if there has been the umts land radio access web (umts of maturation in operator
Terrestrial radio access network, utran)/gsm Radio Access Network (gsmed ge radio access
Network, geran) network, for the protection that cs is invested, in conjunction with the deployment strategy of td-lte network, operator can adopt
Original cs domain voice scheme is providing voice service, and td-lte network only processing data business (including ims data service).
In this case, using csfb technology, when processing speech business, terminal first return back to cs (circuit to the ue under that is, lte covers
Domain) network, in cs network processes speech business；Thus reach reuse existing cs domain equipment to come in td-lte network
User provides the purpose of traditional speech business.
But the use of csfb has precondition, that is, only in the umts land radio access web of evolution
(evolved umts terrestrial radio access network, e-utran) is covered with the overlapping of utran/geran
Cover area, and when user equipment has csfb function, circuit domain dropping could be used.
The present invention relates to lte network, 3g network and 2g network, specifically 3g network 2g network is fallen back to by lte network.Under
Face to describe wireless network architecture taking lte network as a example.
Wireless network architecture can include several enode enb and other network entity.Enb can be and user equipment
Base station that device (ue) communicates and base station, node b, access point etc. can be referred to as.Each enb can be provided for specific
The communication overlay of geographic area.In 3gpp, term " cell " also refers to the overlay area of enb and/or services this and cover
The overlay area of the enb subsystem of cover area, this depends on the context using term.
Enb can provide the communication for macrocell, picocell, Femto cell and/or other types of cell to cover
Lid.Macrocell can cover relatively large geographic area (a few km of such as radius) and can allow the ue with service subscription
Unrestricted access.Picocell can cover relatively small geographic area and can allow the ue with service subscription
Unrestricted access.Femto cell can cover relatively small geographic area (for example, family) and can allow with
Ue that described Femto cell is associated (for example, in the ue in closed subscriber group (csg), for ue of user in family etc.)
Restricted access.Enb for macrocell can be referred to as grand enb (i.e. macro base station).Enb for picocell is permissible
It is referred to as slight enb (i.e. femto base station).Enb for Femto cell can be referred to as femto enb (i.e. femto base
Stand) or family enb.Enb can support one or more (such as three) cell.
Wireless network can also include relay station.Relay station be from upper station (such as enb or ue) receiving data and/or its
The transmission of its information and the station to dirty station (such as ue or enb) transmission data and/or the transmission of other information.Relay station is also
Can be the ue that the transmission for other ue is relayed.Relay station is also referred to as relaying enb, repeater etc..
Wireless network can include the different types of enb such as example grand enb, slight enb, femto enb, repeater
Heterogeneous network (hernet).These different types of enb can have different transmitted power levels, difference in the wireless network
Overlay area and to interference Different Effects.For example, grand enb has high transmitted power level (such as 20w) and slight
Enb, femto enb and repeater have relatively low transmitted power level (such as 1w).
Network controller is also included, it may be coupled to the set of enb and provides coordination for these enb in wireless network
And control.Network controller can be communicated with enb via backhaul.Enb can also for example either directly or indirectly return via wireless
Journey or wire-line back haul are communicated each other.
Refer to Fig. 1, when terminal (ue) actively initiates voice service request, if can be by csfb flow process by lte net
Network normally falls back to 2g/3g network, then executable following csfb calling procedure (reconstruction signaling process):
1.ue initiates csfb (circuit domain dropping) voice service request.
2.mme (mobile managenment entity, mobile management entity) sends s1-ap ue context
Modification request message, to enodeb, comprises csfb configured information (cs fallback indicator).This disappears
Breath instruction enodeb, ue fall back to utran (3g) network or geran (2g) network because of csfb service needed.
3.enodeb requires ue to start the cell measurement of different system, and obtains the measurement report that ue reports, and determines and redirects
Target system cells.Then send the specific radio configuration information of goal systems to ue, and discharge connection.
4.ue accesses target system cells, initiates the service request cm service request in cs domain.
If target system cells ownership msc and ue attachment eps (evolved packet system, evolution point
Group system) network when the msc (mobile switching center, mobile switching centre) that registers different, then this msc receives
During the service request of ue, due to the information of not this ue, implicit location more new technological process can be taken, accept user's request.If
Msc does not support that implicit location updates, and msc does not have user data (i.e. service msc is different from the msc that eps/imsi registers), then
Refuse the service request of this user.If the service request that msc refuses user can lead to ue to initiate a cs domain location updating stream
Journey.
6.cs domain audio call Establishing process.
Refer to Fig. 2, embodiments provide a kind of method of raising lte terminal unit call completion ratio, wherein, lte
Terminal unit, comprises the following steps taking mobile phone as a example:
S101:lte terminal function is normal, after start equipment can reside in 2g (gsm, cdma), 3g (wcdma,
Cdma2000, td-scdma) or 4g (td-lte, fdd-lte) network, 2g/3g speech business and 4g data service can be carried out.
2g and 3g network also supports data service, but data transmission bauds is slower, is unsatisfactory for the demand nowadays to large-data operation.
S102: when terminal unit searches stable 4g signal, access and reside in lte network.Lte network is only supported
Data service, namely packet switching service, when needing to support speech business, in the case of not handover network, can pass through
Volte technology is realized, but this technology is not commercial on a large scale in China.Current speech business is all mainly by csfb skill
Art, makes terminal unit fall back to from lte network and supports that the 2g/3g network of circuit domain to be realized.
S103: the terminal unit residing in lte network initiates voice call service；Csfb technology can be passed through, in lte and
Double overlay areas of 2g/3g, triggering terminal equipment return back to 2g/3g network insertion to carry out speech business from lte network.
When s104: terminal unit initiates audio call under lte network, esr is sent to lte network by lte base station
(extended service request, expansion service is asked) is so that lte network knows that terminal unit will carry out circuit domain industry
Business, lte network and then instruction terminal falls back to 2g or 3g network, after terminal falls back to 2g or 3g network, initiate to access to msc
Whether request, allow terminal to initiate circuit domain by msc according to the priority of terminal use and the system loading Determines of itself
Business；When terminal is allowed to access, terminal carries out network switching.If now circuit domain system loading is excessive, can lead to end
End handoff failure, leads to final call failure, but also is likely to result in initiating the situation of re-dialing telephone also failure.Terminal is being received
During to No. #39 of network congestion mistake, execute following step s05, it is to avoid speech business is interrupted.
S105: read adjacent area and support circuit domain business network cell and frequency, and initiate to search net, to select the terminal unit can
The Target cell accessing, described Target cell is adjacent with described lte network cell in 2g/3g network.
After s106: terminal unit resides in the Target cell of network decision, under this network, can be carried out speech business.
Now speech business calling initiated again by mobile phone.
S107: terminal unit just can carry out voice calling service on the 2g/3g network of adjacent area, can solve network and gather around
What plug caused calls through the not high problem of success rate.
S108: after end of conversation, terminal unit carries out primary network switching again, comes back to lte network.
Refer to Fig. 3, the embodiment of the present invention additionally provides a kind of method of raising lte terminal unit call completion ratio, the method
Comprise the following steps:
S201: reside at ue in lte network and send esr (extended service request, expansion service please
Ask) request initiation audio call.
S202: receive the downstream signal that network equipment sends, described downstream signal is rrcconnection release
Signal, carries the 2g/3g network objectives frequency of configuration and the information of adjacent area frequency.
S203: if terminal unit receives the configured information of network congestion and can not fall back to described target frequency, search for
Neighboring cell signal quality meets pre-conditioned frequency.In embodiments of the present invention, the configured information of described network congestion is #39, #
39 indicating circuit domain core net congestions.Described pre-conditioned be rsrp (reference signal received power, ginseng
Examine signal and receive attack strategy) to be more than default threshold value or rsrp maximum in the frequency of all adjacent areas for value.
S204: described terminal unit resides in described neighboring cell signal quality and meets pre-conditioned frequency.
S205: described terminal unit initiates voice service request again in resident 2g/3g network.
Alternatively, if described target frequency is the frequency of 2g network, receive the instruction of network congestion in terminal unit
Information and when can not fall back to described target frequency, described terminal unit search 3g network neighbor signal quality meets pre-conditioned
Frequency.
Alternatively, if described target frequency is the frequency of 3g network, receive the instruction of network congestion in terminal unit
Information and when can not fall back to described target frequency, described terminal unit search 2g network neighbor signal quality meets pre-conditioned
Frequency.
Refer to Fig. 4, embodiments provide a kind of terminal unit 100, including search module 10, sending module 20
And receiver module 30, search for lte network when described search module 10 is started shooting for described terminal unit and reside at lte network；
Described sending module 20 is used for sending esr (extended service request, expansion service is asked) request initiation voice
Calling；Described receiver module 30 is used for receiving the downstream signal of network side transmission, and this downstream signal carries the 2g/3g network of configuration
Target frequency and the information of adjacent area frequency.If terminal unit 100 receives the configured information of network congestion and can not fall back to described
Target frequency, described search module 10 is additionally operable to searching neighboring area signal quality and meets pre-conditioned frequency, so that described terminal
Equipment 100 resides in described neighboring cell signal quality and meets pre-conditioned frequency；Described sending module 20 was additionally operable at described end
End equipment initiates voice service request after residing at 2g/3g network again.
The configured information of described network congestion is #39, #39 indicating circuit domain core net congestion；Described terminal unit 100
Search module 10 receives #39 to start searching neighboring area signal quality and meets pre-conditioned frequency, so that described terminal unit 100
In network congestion, energy fast search is to the adjacent area that can access, it is to avoid audio call interrupts.
Specifically, described signal quality meets and pre-conditioned refers to rsrp (reference signal received
Power, reference signal receives attack strategy) value is more than default threshold value, rsrp value obtains adjacent area and frequency (more than this threshold value
Cell may have one or more frequencies) possible more than one, the condition frequency access of a satisfaction can be randomly choosed wherein,
The time searching net so can be reduced, terminal unit can quickly be linked into the adjacent area meeting condition；Described signal quality meets pre-
If condition can also refer to, and rsrp is maximum in the frequency of all adjacent areas, selects the maximum frequency of rsrp to access, terminal unit can be made
Access the best cell of signal and frequency, can guarantee that communication quality.
The downstream signal that described receiver module 30 receives is rrc connection release signal, and this signal carries joins
The gsm (2g) putting/utran (3g) network objectives frequency and the information of adjacent area frequency.
Alternatively, if described target frequency is the frequency of 2g network, receive the finger of network congestion in terminal unit 100
When showing that information can not fall back to described target frequency, described search module 10 is used for searching for 3g network neighbor signal quality satisfaction
Pre-conditioned frequency.
Alternatively, if described target frequency is the frequency of 3g network, receive the finger of network congestion in terminal unit 100
When showing that information can not fall back to described target frequency, described search module 10 search 2g network neighbor signal quality meets default
The frequency of condition.
Fig. 5 is another structural representation of embodiment of the present invention terminal unit 200.This terminal unit 200 at least includes: deposits
Reservoir 201 and processor 202, wherein:
Memorizer 201 can include read only memory and random access memory, and provides instruction sum to processor 202
According to a part of of memorizer 201 can also include comprising high-speed random access memory (ram, random access
Memory) it is also possible to also include non-labile memorizer (non-volatile memory).
Memorizer 201 stores following element, executable module or data structure, or their subset, or
Their superset.
Operational order: include various operational orders, be used for realizing various operations.
Operating system: include various system programs, be used for realizing various basic businesses and process hardware based task.
In embodiments of the present invention, processor 202 is by calling operational order (this operational order of memorizer 201 storage
It is storable in operating system), execution is following to be operated:
If terminal unit receives configured information #39 of network congestion and can not fall back to circuit domain (cs), searching neighboring area
Signal quality meets pre-conditioned frequency, makes described terminal unit access described neighboring cell signal quality and meets pre-conditioned frequency
Point.
In addition, processor 202 is additionally operable to execute all or part of step in the embodiment of the method shown in Fig. 2 or Fig. 3, tool
Here is omitted for body.
Terminal unit in the embodiment of the present invention is foregoing user equipment in actual applications, can be wireless end
End can also be catv terminal, and this terminal unit possesses the functional module shown in Fig. 4 or the structure shown in Fig. 5.Wherein, wirelessly eventually
End can be communicated with one or more core net through wireless access network (for example, ran, radioaccess network), no
Line terminal can be mobile terminal, such as mobile phone (or referred to as " honeycomb " phone) and the computer with mobile terminal, for example,
Can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they are handed over wireless access network
Change language and/or data.Specifically, do not repeat herein.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
Device and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
It should be understood that disclosed system in several embodiments provided herein, apparatus and method are permissible
Realize by another way.For example, device embodiment described above is only schematically, for example, described unit
Divide, only a kind of division of logic function, actual can have other dividing mode when realizing, for example multiple units or assembly
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not execute.Another, shown or
The coupling each other discussing or direct-coupling or communication connection can be by some interfaces, the indirect coupling of device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The described unit illustrating as separating component can be or may not be physically separate, show as unit
The part showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.The mesh to realize this embodiment scheme for some or all of unit therein can be selected according to the actual needs
's.
In addition, can be integrated in a processing unit in each functional unit in each embodiment of the present invention it is also possible to
It is that unit is individually physically present it is also possible to two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be to be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If described integrated unit is realized and as independent production marketing or use using in the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part in other words prior art being contributed or all or part of this technical scheme can be in the form of software products
Embody, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be personal computer, server, or network equipment etc.) executes the complete of each embodiment methods described of the present invention
Portion or part steps.And aforesaid storage medium includes: u disk, portable hard drive, read only memory (rom, read-only
Memory), random access memory (ram, random access memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, above example only in order to technical scheme to be described, is not intended to limit；Although with reference to front
State embodiment the present invention has been described in detail, it will be understood by those within the art that: it still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to wherein some technical characteristics；And these
Modification or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of method of raising lte terminal unit call completion ratio is it is characterised in that the method includes:
Reside at the ue in lte network and send esr (extended service request, expansion service is asked) request initiation
Audio call；
Receive the downstream signal that network equipment sends, this downstream signal carries 2g/3g network objectives frequency and the adjacent area of configuration
The information of frequency；
If terminal unit receives the configured information of network congestion and can not fall back to described target frequency, searching neighboring area signal matter
Amount meets pre-conditioned frequency；
Described terminal unit resides in described neighboring cell signal quality and meets pre-conditioned frequency；
Described terminal unit initiates voice service request again in resident 2g/3g network.
2. the method for raising lte terminal unit call completion ratio according to claim 1 is it is characterised in that described network congestion
Configured information be #39, described #39 indicating circuit domain core net congestion.
3. the method for raising lte terminal unit call completion ratio according to claim 1 and 2 is it is characterised in that described default bar
Part is that rsrp (reference signal received power, reference signal receives attack strategy) value is more than default threshold value
Or rsrp is maximum in the frequency of all adjacent areas.
If 4. the method for raising lte terminal unit call completion ratio according to claim 1 is it is characterised in that described target
Frequency is the frequency of 2g network, then receive the configured information of network congestion in described terminal unit and can not fall back to described target
During frequency, described terminal unit search 3g network neighbor signal quality meets pre-conditioned frequency.
If 5. the method for raising lte terminal unit call completion ratio according to claim 1 is it is characterised in that described target
Frequency is the frequency of 3g network, then receive the configured information of network congestion in described terminal unit and can not fall back to described target
During frequency, described terminal searching 2g network neighbor signal quality meets pre-conditioned frequency.
6. a kind of terminal unit, including search module, sending module and receiver module, described search module sets for described terminal
Search for lte network during standby start and reside at lte network；Described sending module is used for sending esr (extended service
Request, expansion service is asked) request initiation audio call；Described receiver module is used for receiving under network equipment transmission
Row signal, this downstream signal carries the 2g/3g network objectives frequency of configuration and the information of adjacent area frequency；It is characterized in that,
If terminal unit receives the configured information of network congestion and can not fall back to described target frequency, described search module is also used
Meet pre-conditioned frequency in searching neighboring area signal quality, so that described terminal unit resides in described neighboring cell signal quality completely
The pre-conditioned frequency of foot；Described sending module is additionally operable to initiate language again after described terminal unit resides at 2g/3g network
Sound business is asked.
7. terminal unit according to claim 6 is it is characterised in that the configured information of described network congestion is #39, institute
State #39 indicating circuit domain core net congestion.
8. the terminal unit according to claim 6 or 7 it is characterised in that described pre-conditioned be rsrp (reference
Signal received power, reference signal receives attack strategy) value is more than default threshold value or rsrp in all adjacent areas frequency
Middle maximum.
If 9. terminal unit according to claim 6 is it is characterised in that described target frequency is the frequency of 2g network,
Then when described terminal unit receives the configured information of network congestion and can not fall back to described target frequency, described search module
Meet pre-conditioned frequency for searching for 3g network neighbor signal quality.
If 10. terminal unit according to claim 6 is it is characterised in that described target frequency is the frequency of 3g network,
Then when described terminal unit receives the configured information of network congestion and can not fall back to described target frequency, described search module
Meet pre-conditioned frequency for searching for 2g network neighbor signal quality.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801710.3A CN106341803A (en) | 2016-09-05 | 2016-09-05 | Method for improving call completion ratio of LTE terminal equipment and terminal equipment |
| PCT/CN2017/098162 WO2018040959A1 (en) | 2016-09-05 | 2017-08-18 | Voice service processing method, terminal equipment, and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801710.3A CN106341803A (en) | 2016-09-05 | 2016-09-05 | Method for improving call completion ratio of LTE terminal equipment and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
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| CN106341803A true CN106341803A (en) | 2017-01-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610801710.3A Pending CN106341803A (en) | 2016-09-05 | 2016-09-05 | Method for improving call completion ratio of LTE terminal equipment and terminal equipment |
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| Country | Link |
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| CN (1) | CN106341803A (en) |
| WO (1) | WO2018040959A1 (en) |
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